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path: root/themes/mantra/js/PIE
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Diffstat (limited to 'themes/mantra/js/PIE')
-rw-r--r--themes/mantra/js/PIE/PIE.htc96
-rw-r--r--themes/mantra/js/PIE/PIE.js88
-rw-r--r--themes/mantra/js/PIE/PIE.php19
-rw-r--r--themes/mantra/js/PIE/PIE_uncompressed.htc4505
-rw-r--r--themes/mantra/js/PIE/PIE_uncompressed.js4474
5 files changed, 9182 insertions, 0 deletions
diff --git a/themes/mantra/js/PIE/PIE.htc b/themes/mantra/js/PIE/PIE.htc
new file mode 100644
index 00000000..ca3b5470
--- /dev/null
+++ b/themes/mantra/js/PIE/PIE.htc
@@ -0,0 +1,96 @@
+<!--
+PIE: CSS3 rendering for IE
+Version 1.0.0
+http://css3pie.com
+Dual-licensed for use under the Apache License Version 2.0 or the General Public License (GPL) Version 2.
+-->
+<PUBLIC:COMPONENT lightWeight="true">
+<!-- saved from url=(0014)about:internet -->
+<PUBLIC:ATTACH EVENT="oncontentready" FOR="element" ONEVENT="init()" />
+<PUBLIC:ATTACH EVENT="ondocumentready" FOR="element" ONEVENT="init()" />
+<PUBLIC:ATTACH EVENT="ondetach" FOR="element" ONEVENT="cleanup()" />
+
+<script type="text/javascript">
+var doc = element.document;var f=window.PIE;
+if(!f){f=window.PIE={F:"-pie-",nb:"Pie",La:"pie_",Ac:{TD:1,TH:1},cc:{TABLE:1,THEAD:1,TBODY:1,TFOOT:1,TR:1,INPUT:1,TEXTAREA:1,SELECT:1,OPTION:1,IMG:1,HR:1},fc:{A:1,INPUT:1,TEXTAREA:1,SELECT:1,BUTTON:1},Gd:{submit:1,button:1,reset:1},aa:function(){}};try{doc.execCommand("BackgroundImageCache",false,true)}catch(aa){}for(var ba=4,Z=doc.createElement("div"),ca=Z.getElementsByTagName("i"),ga;Z.innerHTML="<!--[if gt IE "+ ++ba+"]><i></i><![endif]--\>",ca[0];);f.O=ba;if(ba===6)f.F=f.F.replace(/^-/,"");f.ja=
+doc.documentMode||f.O;Z.innerHTML='<v:shape adj="1"/>';ga=Z.firstChild;ga.style.behavior="url(#default#VML)";f.zc=typeof ga.adj==="object";(function(){var a,b=0,c={};f.p={Za:function(d){if(!a){a=doc.createDocumentFragment();a.namespaces.add("css3vml","urn:schemas-microsoft-com:vml")}return a.createElement("css3vml:"+d)},Ba:function(d){return d&&d._pieId||(d._pieId="_"+ ++b)},Eb:function(d){var e,g,j,i,h=arguments;e=1;for(g=h.length;e<g;e++){i=h[e];for(j in i)if(i.hasOwnProperty(j))d[j]=i[j]}return d},
+Rb:function(d,e,g){var j=c[d],i,h;if(j)Object.prototype.toString.call(j)==="[object Array]"?j.push([e,g]):e.call(g,j);else{h=c[d]=[[e,g]];i=new Image;i.onload=function(){j=c[d]={h:i.width,f:i.height};for(var k=0,n=h.length;k<n;k++)h[k][0].call(h[k][1],j);i.onload=null};i.src=d}}}})();f.Na={gc:function(a,b,c,d){function e(){k=j>=90&&j<270?b:0;n=j<180?c:0;m=b-k;p=c-n}function g(){for(;j<0;)j+=360;j%=360}var j=d.sa;d=d.zb;var i,h,k,n,m,p,r,t;if(d){d=d.coords(a,b,c);i=d.x;h=d.y}if(j){j=j.jd();g();e();
+if(!d){i=k;h=n}d=f.Na.tc(i,h,j,m,p);a=d[0];d=d[1]}else if(d){a=b-i;d=c-h}else{i=h=a=0;d=c}r=a-i;t=d-h;if(j===void 0){j=!r?t<0?90:270:!t?r<0?180:0:-Math.atan2(t,r)/Math.PI*180;g();e()}return{sa:j,xc:i,yc:h,td:a,ud:d,Wd:k,Xd:n,rd:m,sd:p,kd:r,ld:t,rc:f.Na.dc(i,h,a,d)}},tc:function(a,b,c,d,e){if(c===0||c===180)return[d,b];else if(c===90||c===270)return[a,e];else{c=Math.tan(-c*Math.PI/180);a=c*a-b;b=-1/c;d=b*d-e;e=b-c;return[(d-a)/e,(c*d-b*a)/e]}},dc:function(a,b,c,d){a=c-a;b=d-b;return Math.abs(a===0?
+b:b===0?a:Math.sqrt(a*a+b*b))}};f.ea=function(){this.Gb=[];this.oc={}};f.ea.prototype={ba:function(a){var b=f.p.Ba(a),c=this.oc,d=this.Gb;if(!(b in c)){c[b]=d.length;d.push(a)}},Ha:function(a){a=f.p.Ba(a);var b=this.oc;if(a&&a in b){delete this.Gb[b[a]];delete b[a]}},xa:function(){for(var a=this.Gb,b=a.length;b--;)a[b]&&a[b]()}};f.Oa=new f.ea;f.Oa.Rd=function(){var a=this,b;if(!a.Sd){b=doc.documentElement.currentStyle.getAttribute(f.F+"poll-interval")||250;(function c(){a.xa();setTimeout(c,b)})();
+a.Sd=1}};(function(){function a(){f.L.xa();window.detachEvent("onunload",a);window.PIE=null}f.L=new f.ea;window.attachEvent("onunload",a);f.L.ta=function(b,c,d){b.attachEvent(c,d);this.ba(function(){b.detachEvent(c,d)})}})();f.Qa=new f.ea;f.L.ta(window,"onresize",function(){f.Qa.xa()});(function(){function a(){f.mb.xa()}f.mb=new f.ea;f.L.ta(window,"onscroll",a);f.Qa.ba(a)})();(function(){function a(){c=f.kb.md()}function b(){if(c){for(var d=0,e=c.length;d<e;d++)f.attach(c[d]);c=0}}var c;if(f.ja<9){f.L.ta(window,
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diff --git a/themes/mantra/js/PIE/PIE.js b/themes/mantra/js/PIE/PIE.js
new file mode 100644
index 00000000..72165b2a
--- /dev/null
+++ b/themes/mantra/js/PIE/PIE.js
@@ -0,0 +1,88 @@
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+h=f.F+"track-hover",k=f.La+"hover",n=f.La+"active",m=f.La+"focus",p=f.La+"first-child",r={background:1,bgColor:1,display:1},t={},v=[];d.yd=function(l){var q=f.p.Ba(l);return e[q]||(e[q]=new d(l))};d.m=function(l){l=f.p.Ba(l);var q=e[l];if(q){q.m();delete e[l]}};d.md=function(){var l=[],q;if(e){for(var s in e)if(e.hasOwnProperty(s)){q=e[s];l.push(q.qd);q.m()}e={}}return l};return d}();f.supportsVML=f.zc;f.attach=function(a){f.ja<10&&f.zc&&f.kb.yd(a).Ed()};f.detach=function(a){f.kb.m(a)}};
+})(); \ No newline at end of file
diff --git a/themes/mantra/js/PIE/PIE.php b/themes/mantra/js/PIE/PIE.php
new file mode 100644
index 00000000..9280626b
--- /dev/null
+++ b/themes/mantra/js/PIE/PIE.php
@@ -0,0 +1,19 @@
+<?php
+/*
+This file is a wrapper, for use in PHP environments, which serves PIE.htc using the
+correct content-type, so that IE will recognize it as a behavior. Simply specify the
+behavior property to fetch this .php file instead of the .htc directly:
+
+.myElement {
+ [ ...css3 properties... ]
+ behavior: url(PIE.php);
+}
+
+This is only necessary when the web server is not configured to serve .htc files with
+the text/x-component content-type, and cannot easily be configured to do so (as is the
+case with some shared hosting providers).
+*/
+
+header( 'Content-type: text/x-component' );
+include( 'PIE.htc' );
+?> \ No newline at end of file
diff --git a/themes/mantra/js/PIE/PIE_uncompressed.htc b/themes/mantra/js/PIE/PIE_uncompressed.htc
new file mode 100644
index 00000000..bf1a010b
--- /dev/null
+++ b/themes/mantra/js/PIE/PIE_uncompressed.htc
@@ -0,0 +1,4505 @@
+<!--
+PIE: CSS3 rendering for IE
+Version 1.0.0
+http://css3pie.com
+Dual-licensed for use under the Apache License Version 2.0 or the General Public License (GPL) Version 2.
+-->
+<PUBLIC:COMPONENT lightWeight="true">
+<!-- saved from url=(0014)about:internet -->
+<PUBLIC:ATTACH EVENT="oncontentready" FOR="element" ONEVENT="init()" />
+<PUBLIC:ATTACH EVENT="ondocumentready" FOR="element" ONEVENT="init()" />
+<PUBLIC:ATTACH EVENT="ondetach" FOR="element" ONEVENT="cleanup()" />
+
+<script type="text/javascript">
+var doc = element.document;var PIE = window['PIE'];
+
+if( !PIE ) {
+ PIE = window['PIE'] = {
+ CSS_PREFIX: '-pie-',
+ STYLE_PREFIX: 'Pie',
+ CLASS_PREFIX: 'pie_',
+ tableCellTags: {
+ 'TD': 1,
+ 'TH': 1
+ },
+
+ /**
+ * Lookup table of elements which cannot take custom children.
+ */
+ childlessElements: {
+ 'TABLE':1,
+ 'THEAD':1,
+ 'TBODY':1,
+ 'TFOOT':1,
+ 'TR':1,
+ 'INPUT':1,
+ 'TEXTAREA':1,
+ 'SELECT':1,
+ 'OPTION':1,
+ 'IMG':1,
+ 'HR':1
+ },
+
+ /**
+ * Elements that can receive user focus
+ */
+ focusableElements: {
+ 'A':1,
+ 'INPUT':1,
+ 'TEXTAREA':1,
+ 'SELECT':1,
+ 'BUTTON':1
+ },
+
+ /**
+ * Values of the type attribute for input elements displayed as buttons
+ */
+ inputButtonTypes: {
+ 'submit':1,
+ 'button':1,
+ 'reset':1
+ },
+
+ emptyFn: function() {}
+ };
+
+ // Force the background cache to be used. No reason it shouldn't be.
+ try {
+ doc.execCommand( 'BackgroundImageCache', false, true );
+ } catch(e) {}
+
+ (function() {
+ /*
+ * IE version detection approach by James Padolsey, with modifications -- from
+ * http://james.padolsey.com/javascript/detect-ie-in-js-using-conditional-comments/
+ */
+ var ieVersion = 4,
+ div = doc.createElement('div'),
+ all = div.getElementsByTagName('i'),
+ shape;
+ while (
+ div.innerHTML = '<!--[if gt IE ' + (++ieVersion) + ']><i></i><![endif]-->',
+ all[0]
+ ) {}
+ PIE.ieVersion = ieVersion;
+
+ // Detect IE6
+ if( ieVersion === 6 ) {
+ // IE6 can't access properties with leading dash, but can without it.
+ PIE.CSS_PREFIX = PIE.CSS_PREFIX.replace( /^-/, '' );
+ }
+
+ PIE.ieDocMode = doc.documentMode || PIE.ieVersion;
+
+ // Detect VML support (a small number of IE installs don't have a working VML engine)
+ div.innerHTML = '<v:shape adj="1"/>';
+ shape = div.firstChild;
+ shape.style['behavior'] = 'url(#default#VML)';
+ PIE.supportsVML = (typeof shape['adj'] === "object");
+ }());
+/**
+ * Utility functions
+ */
+(function() {
+ var vmlCreatorDoc,
+ idNum = 0,
+ imageSizes = {};
+
+
+ PIE.Util = {
+
+ /**
+ * To create a VML element, it must be created by a Document which has the VML
+ * namespace set. Unfortunately, if you try to add the namespace programatically
+ * into the main document, you will get an "Unspecified error" when trying to
+ * access document.namespaces before the document is finished loading. To get
+ * around this, we create a DocumentFragment, which in IE land is apparently a
+ * full-fledged Document. It allows adding namespaces immediately, so we add the
+ * namespace there and then have it create the VML element.
+ * @param {string} tag The tag name for the VML element
+ * @return {Element} The new VML element
+ */
+ createVmlElement: function( tag ) {
+ var vmlPrefix = 'css3vml';
+ if( !vmlCreatorDoc ) {
+ vmlCreatorDoc = doc.createDocumentFragment();
+ vmlCreatorDoc.namespaces.add( vmlPrefix, 'urn:schemas-microsoft-com:vml' );
+ }
+ return vmlCreatorDoc.createElement( vmlPrefix + ':' + tag );
+ },
+
+
+ /**
+ * Generate and return a unique ID for a given object. The generated ID is stored
+ * as a property of the object for future reuse.
+ * @param {Object} obj
+ */
+ getUID: function( obj ) {
+ return obj && obj[ '_pieId' ] || ( obj[ '_pieId' ] = '_' + ++idNum );
+ },
+
+
+ /**
+ * Simple utility for merging objects
+ * @param {Object} obj1 The main object into which all others will be merged
+ * @param {...Object} var_args Other objects which will be merged into the first, in order
+ */
+ merge: function( obj1 ) {
+ var i, len, p, objN, args = arguments;
+ for( i = 1, len = args.length; i < len; i++ ) {
+ objN = args[i];
+ for( p in objN ) {
+ if( objN.hasOwnProperty( p ) ) {
+ obj1[ p ] = objN[ p ];
+ }
+ }
+ }
+ return obj1;
+ },
+
+
+ /**
+ * Execute a callback function, passing it the dimensions of a given image once
+ * they are known.
+ * @param {string} src The source URL of the image
+ * @param {function({w:number, h:number})} func The callback function to be called once the image dimensions are known
+ * @param {Object} ctx A context object which will be used as the 'this' value within the executed callback function
+ */
+ withImageSize: function( src, func, ctx ) {
+ var size = imageSizes[ src ], img, queue;
+ if( size ) {
+ // If we have a queue, add to it
+ if( Object.prototype.toString.call( size ) === '[object Array]' ) {
+ size.push( [ func, ctx ] );
+ }
+ // Already have the size cached, call func right away
+ else {
+ func.call( ctx, size );
+ }
+ } else {
+ queue = imageSizes[ src ] = [ [ func, ctx ] ]; //create queue
+ img = new Image();
+ img.onload = function() {
+ size = imageSizes[ src ] = { w: img.width, h: img.height };
+ for( var i = 0, len = queue.length; i < len; i++ ) {
+ queue[ i ][ 0 ].call( queue[ i ][ 1 ], size );
+ }
+ img.onload = null;
+ };
+ img.src = src;
+ }
+ }
+ };
+})();/**
+ * Utility functions for handling gradients
+ */
+PIE.GradientUtil = {
+
+ getGradientMetrics: function( el, width, height, gradientInfo ) {
+ var angle = gradientInfo.angle,
+ startPos = gradientInfo.gradientStart,
+ startX, startY,
+ endX, endY,
+ startCornerX, startCornerY,
+ endCornerX, endCornerY,
+ deltaX, deltaY,
+ p, UNDEF;
+
+ // Find the "start" and "end" corners; these are the corners furthest along the gradient line.
+ // This is used below to find the start/end positions of the CSS3 gradient-line, and also in finding
+ // the total length of the VML rendered gradient-line corner to corner.
+ function findCorners() {
+ startCornerX = ( angle >= 90 && angle < 270 ) ? width : 0;
+ startCornerY = angle < 180 ? height : 0;
+ endCornerX = width - startCornerX;
+ endCornerY = height - startCornerY;
+ }
+
+ // Normalize the angle to a value between [0, 360)
+ function normalizeAngle() {
+ while( angle < 0 ) {
+ angle += 360;
+ }
+ angle = angle % 360;
+ }
+
+ // Find the start and end points of the gradient
+ if( startPos ) {
+ startPos = startPos.coords( el, width, height );
+ startX = startPos.x;
+ startY = startPos.y;
+ }
+ if( angle ) {
+ angle = angle.degrees();
+
+ normalizeAngle();
+ findCorners();
+
+ // If no start position was specified, then choose a corner as the starting point.
+ if( !startPos ) {
+ startX = startCornerX;
+ startY = startCornerY;
+ }
+
+ // Find the end position by extending a perpendicular line from the gradient-line which
+ // intersects the corner opposite from the starting corner.
+ p = PIE.GradientUtil.perpendicularIntersect( startX, startY, angle, endCornerX, endCornerY );
+ endX = p[0];
+ endY = p[1];
+ }
+ else if( startPos ) {
+ // Start position but no angle specified: find the end point by rotating 180deg around the center
+ endX = width - startX;
+ endY = height - startY;
+ }
+ else {
+ // Neither position nor angle specified; create vertical gradient from top to bottom
+ startX = startY = endX = 0;
+ endY = height;
+ }
+ deltaX = endX - startX;
+ deltaY = endY - startY;
+
+ if( angle === UNDEF ) {
+ // Get the angle based on the change in x/y from start to end point. Checks first for horizontal
+ // or vertical angles so they get exact whole numbers rather than what atan2 gives.
+ angle = ( !deltaX ? ( deltaY < 0 ? 90 : 270 ) :
+ ( !deltaY ? ( deltaX < 0 ? 180 : 0 ) :
+ -Math.atan2( deltaY, deltaX ) / Math.PI * 180
+ )
+ );
+ normalizeAngle();
+ findCorners();
+ }
+
+ return {
+ angle: angle,
+ startX: startX,
+ startY: startY,
+ endX: endX,
+ endY: endY,
+ startCornerX: startCornerX,
+ startCornerY: startCornerY,
+ endCornerX: endCornerX,
+ endCornerY: endCornerY,
+ deltaX: deltaX,
+ deltaY: deltaY,
+ lineLength: PIE.GradientUtil.distance( startX, startY, endX, endY )
+ }
+ },
+
+ /**
+ * Find the point along a given line (defined by a starting point and an angle), at which
+ * that line is intersected by a perpendicular line extending through another point.
+ * @param x1 - x coord of the starting point
+ * @param y1 - y coord of the starting point
+ * @param angle - angle of the line extending from the starting point (in degrees)
+ * @param x2 - x coord of point along the perpendicular line
+ * @param y2 - y coord of point along the perpendicular line
+ * @return [ x, y ]
+ */
+ perpendicularIntersect: function( x1, y1, angle, x2, y2 ) {
+ // Handle straight vertical and horizontal angles, for performance and to avoid
+ // divide-by-zero errors.
+ if( angle === 0 || angle === 180 ) {
+ return [ x2, y1 ];
+ }
+ else if( angle === 90 || angle === 270 ) {
+ return [ x1, y2 ];
+ }
+ else {
+ // General approach: determine the Ax+By=C formula for each line (the slope of the second
+ // line is the negative inverse of the first) and then solve for where both formulas have
+ // the same x/y values.
+ var a1 = Math.tan( -angle * Math.PI / 180 ),
+ c1 = a1 * x1 - y1,
+ a2 = -1 / a1,
+ c2 = a2 * x2 - y2,
+ d = a2 - a1,
+ endX = ( c2 - c1 ) / d,
+ endY = ( a1 * c2 - a2 * c1 ) / d;
+ return [ endX, endY ];
+ }
+ },
+
+ /**
+ * Find the distance between two points
+ * @param {Number} p1x
+ * @param {Number} p1y
+ * @param {Number} p2x
+ * @param {Number} p2y
+ * @return {Number} the distance
+ */
+ distance: function( p1x, p1y, p2x, p2y ) {
+ var dx = p2x - p1x,
+ dy = p2y - p1y;
+ return Math.abs(
+ dx === 0 ? dy :
+ dy === 0 ? dx :
+ Math.sqrt( dx * dx + dy * dy )
+ );
+ }
+
+};/**
+ *
+ */
+PIE.Observable = function() {
+ /**
+ * List of registered observer functions
+ */
+ this.observers = [];
+
+ /**
+ * Hash of function ids to their position in the observers list, for fast lookup
+ */
+ this.indexes = {};
+};
+PIE.Observable.prototype = {
+
+ observe: function( fn ) {
+ var id = PIE.Util.getUID( fn ),
+ indexes = this.indexes,
+ observers = this.observers;
+ if( !( id in indexes ) ) {
+ indexes[ id ] = observers.length;
+ observers.push( fn );
+ }
+ },
+
+ unobserve: function( fn ) {
+ var id = PIE.Util.getUID( fn ),
+ indexes = this.indexes;
+ if( id && id in indexes ) {
+ delete this.observers[ indexes[ id ] ];
+ delete indexes[ id ];
+ }
+ },
+
+ fire: function() {
+ var o = this.observers,
+ i = o.length;
+ while( i-- ) {
+ o[ i ] && o[ i ]();
+ }
+ }
+
+};/*
+ * Simple heartbeat timer - this is a brute-force workaround for syncing issues caused by IE not
+ * always firing the onmove and onresize events when elements are moved or resized. We check a few
+ * times every second to make sure the elements have the correct position and size. See Element.js
+ * which adds heartbeat listeners based on the custom -pie-poll flag, which defaults to true in IE8-9
+ * and false elsewhere.
+ */
+
+PIE.Heartbeat = new PIE.Observable();
+PIE.Heartbeat.run = function() {
+ var me = this,
+ interval;
+ if( !me.running ) {
+ interval = doc.documentElement.currentStyle.getAttribute( PIE.CSS_PREFIX + 'poll-interval' ) || 250;
+ (function beat() {
+ me.fire();
+ setTimeout(beat, interval);
+ })();
+ me.running = 1;
+ }
+};
+/**
+ * Create an observable listener for the onunload event
+ */
+(function() {
+ PIE.OnUnload = new PIE.Observable();
+
+ function handleUnload() {
+ PIE.OnUnload.fire();
+ window.detachEvent( 'onunload', handleUnload );
+ window[ 'PIE' ] = null;
+ }
+
+ window.attachEvent( 'onunload', handleUnload );
+
+ /**
+ * Attach an event which automatically gets detached onunload
+ */
+ PIE.OnUnload.attachManagedEvent = function( target, name, handler ) {
+ target.attachEvent( name, handler );
+ this.observe( function() {
+ target.detachEvent( name, handler );
+ } );
+ };
+})()/**
+ * Create a single observable listener for window resize events.
+ */
+PIE.OnResize = new PIE.Observable();
+
+PIE.OnUnload.attachManagedEvent( window, 'onresize', function() { PIE.OnResize.fire(); } );
+/**
+ * Create a single observable listener for scroll events. Used for lazy loading based
+ * on the viewport, and for fixed position backgrounds.
+ */
+(function() {
+ PIE.OnScroll = new PIE.Observable();
+
+ function scrolled() {
+ PIE.OnScroll.fire();
+ }
+
+ PIE.OnUnload.attachManagedEvent( window, 'onscroll', scrolled );
+
+ PIE.OnResize.observe( scrolled );
+})();
+/**
+ * Listen for printing events, destroy all active PIE instances when printing, and
+ * restore them afterward.
+ */
+(function() {
+
+ var elements;
+
+ function beforePrint() {
+ elements = PIE.Element.destroyAll();
+ }
+
+ function afterPrint() {
+ if( elements ) {
+ for( var i = 0, len = elements.length; i < len; i++ ) {
+ PIE[ 'attach' ]( elements[i] );
+ }
+ elements = 0;
+ }
+ }
+
+ if( PIE.ieDocMode < 9 ) {
+ PIE.OnUnload.attachManagedEvent( window, 'onbeforeprint', beforePrint );
+ PIE.OnUnload.attachManagedEvent( window, 'onafterprint', afterPrint );
+ }
+
+})();/**
+ * Create a single observable listener for document mouseup events.
+ */
+PIE.OnMouseup = new PIE.Observable();
+
+PIE.OnUnload.attachManagedEvent( doc, 'onmouseup', function() { PIE.OnMouseup.fire(); } );
+/**
+ * Wrapper for length and percentage style values. The value is immutable. A singleton instance per unique
+ * value is returned from PIE.getLength() - always use that instead of instantiating directly.
+ * @constructor
+ * @param {string} val The CSS string representing the length. It is assumed that this will already have
+ * been validated as a valid length or percentage syntax.
+ */
+PIE.Length = (function() {
+ var lengthCalcEl = doc.createElement( 'length-calc' ),
+ parent = doc.body || doc.documentElement,
+ s = lengthCalcEl.style,
+ conversions = {},
+ units = [ 'mm', 'cm', 'in', 'pt', 'pc' ],
+ i = units.length,
+ instances = {};
+
+ s.position = 'absolute';
+ s.top = s.left = '-9999px';
+
+ parent.appendChild( lengthCalcEl );
+ while( i-- ) {
+ s.width = '100' + units[i];
+ conversions[ units[i] ] = lengthCalcEl.offsetWidth / 100;
+ }
+ parent.removeChild( lengthCalcEl );
+
+ // All calcs from here on will use 1em
+ s.width = '1em';
+
+
+ function Length( val ) {
+ this.val = val;
+ }
+ Length.prototype = {
+ /**
+ * Regular expression for matching the length unit
+ * @private
+ */
+ unitRE: /(px|em|ex|mm|cm|in|pt|pc|%)$/,
+
+ /**
+ * Get the numeric value of the length
+ * @return {number} The value
+ */
+ getNumber: function() {
+ var num = this.num,
+ UNDEF;
+ if( num === UNDEF ) {
+ num = this.num = parseFloat( this.val );
+ }
+ return num;
+ },
+
+ /**
+ * Get the unit of the length
+ * @return {string} The unit
+ */
+ getUnit: function() {
+ var unit = this.unit,
+ m;
+ if( !unit ) {
+ m = this.val.match( this.unitRE );
+ unit = this.unit = ( m && m[0] ) || 'px';
+ }
+ return unit;
+ },
+
+ /**
+ * Determine whether this is a percentage length value
+ * @return {boolean}
+ */
+ isPercentage: function() {
+ return this.getUnit() === '%';
+ },
+
+ /**
+ * Resolve this length into a number of pixels.
+ * @param {Element} el - the context element, used to resolve font-relative values
+ * @param {(function():number|number)=} pct100 - the number of pixels that equal a 100% percentage. This can be either a number or a
+ * function which will be called to return the number.
+ */
+ pixels: function( el, pct100 ) {
+ var num = this.getNumber(),
+ unit = this.getUnit();
+ switch( unit ) {
+ case "px":
+ return num;
+ case "%":
+ return num * ( typeof pct100 === 'function' ? pct100() : pct100 ) / 100;
+ case "em":
+ return num * this.getEmPixels( el );
+ case "ex":
+ return num * this.getEmPixels( el ) / 2;
+ default:
+ return num * conversions[ unit ];
+ }
+ },
+
+ /**
+ * The em and ex units are relative to the font-size of the current element,
+ * however if the font-size is set using non-pixel units then we get that value
+ * rather than a pixel conversion. To get around this, we keep a floating element
+ * with width:1em which we insert into the target element and then read its offsetWidth.
+ * For elements that won't accept a child we insert into the parent node and perform
+ * additional calculation. If the font-size *is* specified in pixels, then we use that
+ * directly to avoid the expensive DOM manipulation.
+ * @param {Element} el
+ * @return {number}
+ */
+ getEmPixels: function( el ) {
+ var fs = el.currentStyle.fontSize,
+ px, parent, me;
+
+ if( fs.indexOf( 'px' ) > 0 ) {
+ return parseFloat( fs );
+ }
+ else if( el.tagName in PIE.childlessElements ) {
+ me = this;
+ parent = el.parentNode;
+ return PIE.getLength( fs ).pixels( parent, function() {
+ return me.getEmPixels( parent );
+ } );
+ }
+ else {
+ el.appendChild( lengthCalcEl );
+ px = lengthCalcEl.offsetWidth;
+ if( lengthCalcEl.parentNode === el ) { //not sure how this could be false but it sometimes is
+ el.removeChild( lengthCalcEl );
+ }
+ return px;
+ }
+ }
+ };
+
+
+ /**
+ * Retrieve a PIE.Length instance for the given value. A shared singleton instance is returned for each unique value.
+ * @param {string} val The CSS string representing the length. It is assumed that this will already have
+ * been validated as a valid length or percentage syntax.
+ */
+ PIE.getLength = function( val ) {
+ return instances[ val ] || ( instances[ val ] = new Length( val ) );
+ };
+
+ return Length;
+})();
+/**
+ * Wrapper for a CSS3 bg-position value. Takes up to 2 position keywords and 2 lengths/percentages.
+ * @constructor
+ * @param {Array.<PIE.Tokenizer.Token>} tokens The tokens making up the background position value.
+ */
+PIE.BgPosition = (function() {
+
+ var length_fifty = PIE.getLength( '50%' ),
+ vert_idents = { 'top': 1, 'center': 1, 'bottom': 1 },
+ horiz_idents = { 'left': 1, 'center': 1, 'right': 1 };
+
+
+ function BgPosition( tokens ) {
+ this.tokens = tokens;
+ }
+ BgPosition.prototype = {
+ /**
+ * Normalize the values into the form:
+ * [ xOffsetSide, xOffsetLength, yOffsetSide, yOffsetLength ]
+ * where: xOffsetSide is either 'left' or 'right',
+ * yOffsetSide is either 'top' or 'bottom',
+ * and x/yOffsetLength are both PIE.Length objects.
+ * @return {Array}
+ */
+ getValues: function() {
+ if( !this._values ) {
+ var tokens = this.tokens,
+ len = tokens.length,
+ Tokenizer = PIE.Tokenizer,
+ identType = Tokenizer.Type,
+ length_zero = PIE.getLength( '0' ),
+ type_ident = identType.IDENT,
+ type_length = identType.LENGTH,
+ type_percent = identType.PERCENT,
+ type, value,
+ vals = [ 'left', length_zero, 'top', length_zero ];
+
+ // If only one value, the second is assumed to be 'center'
+ if( len === 1 ) {
+ tokens.push( new Tokenizer.Token( type_ident, 'center' ) );
+ len++;
+ }
+
+ // Two values - CSS2
+ if( len === 2 ) {
+ // If both idents, they can appear in either order, so switch them if needed
+ if( type_ident & ( tokens[0].tokenType | tokens[1].tokenType ) &&
+ tokens[0].tokenValue in vert_idents && tokens[1].tokenValue in horiz_idents ) {
+ tokens.push( tokens.shift() );
+ }
+ if( tokens[0].tokenType & type_ident ) {
+ if( tokens[0].tokenValue === 'center' ) {
+ vals[1] = length_fifty;
+ } else {
+ vals[0] = tokens[0].tokenValue;
+ }
+ }
+ else if( tokens[0].isLengthOrPercent() ) {
+ vals[1] = PIE.getLength( tokens[0].tokenValue );
+ }
+ if( tokens[1].tokenType & type_ident ) {
+ if( tokens[1].tokenValue === 'center' ) {
+ vals[3] = length_fifty;
+ } else {
+ vals[2] = tokens[1].tokenValue;
+ }
+ }
+ else if( tokens[1].isLengthOrPercent() ) {
+ vals[3] = PIE.getLength( tokens[1].tokenValue );
+ }
+ }
+
+ // Three or four values - CSS3
+ else {
+ // TODO
+ }
+
+ this._values = vals;
+ }
+ return this._values;
+ },
+
+ /**
+ * Find the coordinates of the background image from the upper-left corner of the background area.
+ * Note that these coordinate values are not rounded.
+ * @param {Element} el
+ * @param {number} width - the width for percentages (background area width minus image width)
+ * @param {number} height - the height for percentages (background area height minus image height)
+ * @return {Object} { x: Number, y: Number }
+ */
+ coords: function( el, width, height ) {
+ var vals = this.getValues(),
+ pxX = vals[1].pixels( el, width ),
+ pxY = vals[3].pixels( el, height );
+
+ return {
+ x: vals[0] === 'right' ? width - pxX : pxX,
+ y: vals[2] === 'bottom' ? height - pxY : pxY
+ };
+ }
+ };
+
+ return BgPosition;
+})();
+/**
+ * Wrapper for a CSS3 background-size value.
+ * @constructor
+ * @param {String|PIE.Length} w The width parameter
+ * @param {String|PIE.Length} h The height parameter, if any
+ */
+PIE.BgSize = (function() {
+
+ var CONTAIN = 'contain',
+ COVER = 'cover',
+ AUTO = 'auto';
+
+
+ function BgSize( w, h ) {
+ this.w = w;
+ this.h = h;
+ }
+ BgSize.prototype = {
+
+ pixels: function( el, areaW, areaH, imgW, imgH ) {
+ var me = this,
+ w = me.w,
+ h = me.h,
+ areaRatio = areaW / areaH,
+ imgRatio = imgW / imgH;
+
+ if ( w === CONTAIN ) {
+ w = imgRatio > areaRatio ? areaW : areaH * imgRatio;
+ h = imgRatio > areaRatio ? areaW / imgRatio : areaH;
+ }
+ else if ( w === COVER ) {
+ w = imgRatio < areaRatio ? areaW : areaH * imgRatio;
+ h = imgRatio < areaRatio ? areaW / imgRatio : areaH;
+ }
+ else if ( w === AUTO ) {
+ h = ( h === AUTO ? imgH : h.pixels( el, areaH ) );
+ w = h * imgRatio;
+ }
+ else {
+ w = w.pixels( el, areaW );
+ h = ( h === AUTO ? w / imgRatio : h.pixels( el, areaH ) );
+ }
+
+ return { w: w, h: h };
+ }
+
+ };
+
+ BgSize.DEFAULT = new BgSize( AUTO, AUTO );
+
+ return BgSize;
+})();
+/**
+ * Wrapper for angle values; handles conversion to degrees from all allowed angle units
+ * @constructor
+ * @param {string} val The raw CSS value for the angle. It is assumed it has been pre-validated.
+ */
+PIE.Angle = (function() {
+ function Angle( val ) {
+ this.val = val;
+ }
+ Angle.prototype = {
+ unitRE: /[a-z]+$/i,
+
+ /**
+ * @return {string} The unit of the angle value
+ */
+ getUnit: function() {
+ return this._unit || ( this._unit = this.val.match( this.unitRE )[0].toLowerCase() );
+ },
+
+ /**
+ * Get the numeric value of the angle in degrees.
+ * @return {number} The degrees value
+ */
+ degrees: function() {
+ var deg = this._deg, u, n;
+ if( deg === undefined ) {
+ u = this.getUnit();
+ n = parseFloat( this.val, 10 );
+ deg = this._deg = ( u === 'deg' ? n : u === 'rad' ? n / Math.PI * 180 : u === 'grad' ? n / 400 * 360 : u === 'turn' ? n * 360 : 0 );
+ }
+ return deg;
+ }
+ };
+
+ return Angle;
+})();/**
+ * Abstraction for colors values. Allows detection of rgba values. A singleton instance per unique
+ * value is returned from PIE.getColor() - always use that instead of instantiating directly.
+ * @constructor
+ * @param {string} val The raw CSS string value for the color
+ */
+PIE.Color = (function() {
+ var instances = {};
+
+ function Color( val ) {
+ this.val = val;
+ }
+
+ /**
+ * Regular expression for matching rgba colors and extracting their components
+ * @type {RegExp}
+ */
+ Color.rgbaRE = /\s*rgba\(\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d+|\d*\.\d+)\s*\)\s*/;
+
+ Color.names = {
+ "aliceblue":"F0F8FF", "antiquewhite":"FAEBD7", "aqua":"0FF",
+ "aquamarine":"7FFFD4", "azure":"F0FFFF", "beige":"F5F5DC",
+ "bisque":"FFE4C4", "black":"000", "blanchedalmond":"FFEBCD",
+ "blue":"00F", "blueviolet":"8A2BE2", "brown":"A52A2A",
+ "burlywood":"DEB887", "cadetblue":"5F9EA0", "chartreuse":"7FFF00",
+ "chocolate":"D2691E", "coral":"FF7F50", "cornflowerblue":"6495ED",
+ "cornsilk":"FFF8DC", "crimson":"DC143C", "cyan":"0FF",
+ "darkblue":"00008B", "darkcyan":"008B8B", "darkgoldenrod":"B8860B",
+ "darkgray":"A9A9A9", "darkgreen":"006400", "darkkhaki":"BDB76B",
+ "darkmagenta":"8B008B", "darkolivegreen":"556B2F", "darkorange":"FF8C00",
+ "darkorchid":"9932CC", "darkred":"8B0000", "darksalmon":"E9967A",
+ "darkseagreen":"8FBC8F", "darkslateblue":"483D8B", "darkslategray":"2F4F4F",
+ "darkturquoise":"00CED1", "darkviolet":"9400D3", "deeppink":"FF1493",
+ "deepskyblue":"00BFFF", "dimgray":"696969", "dodgerblue":"1E90FF",
+ "firebrick":"B22222", "floralwhite":"FFFAF0", "forestgreen":"228B22",
+ "fuchsia":"F0F", "gainsboro":"DCDCDC", "ghostwhite":"F8F8FF",
+ "gold":"FFD700", "goldenrod":"DAA520", "gray":"808080",
+ "green":"008000", "greenyellow":"ADFF2F", "honeydew":"F0FFF0",
+ "hotpink":"FF69B4", "indianred":"CD5C5C", "indigo":"4B0082",
+ "ivory":"FFFFF0", "khaki":"F0E68C", "lavender":"E6E6FA",
+ "lavenderblush":"FFF0F5", "lawngreen":"7CFC00", "lemonchiffon":"FFFACD",
+ "lightblue":"ADD8E6", "lightcoral":"F08080", "lightcyan":"E0FFFF",
+ "lightgoldenrodyellow":"FAFAD2", "lightgreen":"90EE90", "lightgrey":"D3D3D3",
+ "lightpink":"FFB6C1", "lightsalmon":"FFA07A", "lightseagreen":"20B2AA",
+ "lightskyblue":"87CEFA", "lightslategray":"789", "lightsteelblue":"B0C4DE",
+ "lightyellow":"FFFFE0", "lime":"0F0", "limegreen":"32CD32",
+ "linen":"FAF0E6", "magenta":"F0F", "maroon":"800000",
+ "mediumauqamarine":"66CDAA", "mediumblue":"0000CD", "mediumorchid":"BA55D3",
+ "mediumpurple":"9370D8", "mediumseagreen":"3CB371", "mediumslateblue":"7B68EE",
+ "mediumspringgreen":"00FA9A", "mediumturquoise":"48D1CC", "mediumvioletred":"C71585",
+ "midnightblue":"191970", "mintcream":"F5FFFA", "mistyrose":"FFE4E1",
+ "moccasin":"FFE4B5", "navajowhite":"FFDEAD", "navy":"000080",
+ "oldlace":"FDF5E6", "olive":"808000", "olivedrab":"688E23",
+ "orange":"FFA500", "orangered":"FF4500", "orchid":"DA70D6",
+ "palegoldenrod":"EEE8AA", "palegreen":"98FB98", "paleturquoise":"AFEEEE",
+ "palevioletred":"D87093", "papayawhip":"FFEFD5", "peachpuff":"FFDAB9",
+ "peru":"CD853F", "pink":"FFC0CB", "plum":"DDA0DD",
+ "powderblue":"B0E0E6", "purple":"800080", "red":"F00",
+ "rosybrown":"BC8F8F", "royalblue":"4169E1", "saddlebrown":"8B4513",
+ "salmon":"FA8072", "sandybrown":"F4A460", "seagreen":"2E8B57",
+ "seashell":"FFF5EE", "sienna":"A0522D", "silver":"C0C0C0",
+ "skyblue":"87CEEB", "slateblue":"6A5ACD", "slategray":"708090",
+ "snow":"FFFAFA", "springgreen":"00FF7F", "steelblue":"4682B4",
+ "tan":"D2B48C", "teal":"008080", "thistle":"D8BFD8",
+ "tomato":"FF6347", "turquoise":"40E0D0", "violet":"EE82EE",
+ "wheat":"F5DEB3", "white":"FFF", "whitesmoke":"F5F5F5",
+ "yellow":"FF0", "yellowgreen":"9ACD32"
+ };
+
+ Color.prototype = {
+ /**
+ * @private
+ */
+ parse: function() {
+ if( !this._color ) {
+ var me = this,
+ v = me.val,
+ vLower,
+ m = v.match( Color.rgbaRE );
+ if( m ) {
+ me._color = 'rgb(' + m[1] + ',' + m[2] + ',' + m[3] + ')';
+ me._alpha = parseFloat( m[4] );
+ }
+ else {
+ if( ( vLower = v.toLowerCase() ) in Color.names ) {
+ v = '#' + Color.names[vLower];
+ }
+ me._color = v;
+ me._alpha = ( v === 'transparent' ? 0 : 1 );
+ }
+ }
+ },
+
+ /**
+ * Retrieve the value of the color in a format usable by IE natively. This will be the same as
+ * the raw input value, except for rgba values which will be converted to an rgb value.
+ * @param {Element} el The context element, used to get 'currentColor' keyword value.
+ * @return {string} Color value
+ */
+ colorValue: function( el ) {
+ this.parse();
+ return this._color === 'currentColor' ? el.currentStyle.color : this._color;
+ },
+
+ /**
+ * Retrieve the alpha value of the color. Will be 1 for all values except for rgba values
+ * with an alpha component.
+ * @return {number} The alpha value, from 0 to 1.
+ */
+ alpha: function() {
+ this.parse();
+ return this._alpha;
+ }
+ };
+
+
+ /**
+ * Retrieve a PIE.Color instance for the given value. A shared singleton instance is returned for each unique value.
+ * @param {string} val The CSS string representing the color. It is assumed that this will already have
+ * been validated as a valid color syntax.
+ */
+ PIE.getColor = function(val) {
+ return instances[ val ] || ( instances[ val ] = new Color( val ) );
+ };
+
+ return Color;
+})();/**
+ * A tokenizer for CSS value strings.
+ * @constructor
+ * @param {string} css The CSS value string
+ */
+PIE.Tokenizer = (function() {
+ function Tokenizer( css ) {
+ this.css = css;
+ this.ch = 0;
+ this.tokens = [];
+ this.tokenIndex = 0;
+ }
+
+ /**
+ * Enumeration of token type constants.
+ * @enum {number}
+ */
+ var Type = Tokenizer.Type = {
+ ANGLE: 1,
+ CHARACTER: 2,
+ COLOR: 4,
+ DIMEN: 8,
+ FUNCTION: 16,
+ IDENT: 32,
+ LENGTH: 64,
+ NUMBER: 128,
+ OPERATOR: 256,
+ PERCENT: 512,
+ STRING: 1024,
+ URL: 2048
+ };
+
+ /**
+ * A single token
+ * @constructor
+ * @param {number} type The type of the token - see PIE.Tokenizer.Type
+ * @param {string} value The value of the token
+ */
+ Tokenizer.Token = function( type, value ) {
+ this.tokenType = type;
+ this.tokenValue = value;
+ };
+ Tokenizer.Token.prototype = {
+ isLength: function() {
+ return this.tokenType & Type.LENGTH || ( this.tokenType & Type.NUMBER && this.tokenValue === '0' );
+ },
+ isLengthOrPercent: function() {
+ return this.isLength() || this.tokenType & Type.PERCENT;
+ }
+ };
+
+ Tokenizer.prototype = {
+ whitespace: /\s/,
+ number: /^[\+\-]?(\d*\.)?\d+/,
+ url: /^url\(\s*("([^"]*)"|'([^']*)'|([!#$%&*-~]*))\s*\)/i,
+ ident: /^\-?[_a-z][\w-]*/i,
+ string: /^("([^"]*)"|'([^']*)')/,
+ operator: /^[\/,]/,
+ hash: /^#[\w]+/,
+ hashColor: /^#([\da-f]{6}|[\da-f]{3})/i,
+
+ unitTypes: {
+ 'px': Type.LENGTH, 'em': Type.LENGTH, 'ex': Type.LENGTH,
+ 'mm': Type.LENGTH, 'cm': Type.LENGTH, 'in': Type.LENGTH,
+ 'pt': Type.LENGTH, 'pc': Type.LENGTH,
+ 'deg': Type.ANGLE, 'rad': Type.ANGLE, 'grad': Type.ANGLE
+ },
+
+ colorFunctions: {
+ 'rgb': 1, 'rgba': 1, 'hsl': 1, 'hsla': 1
+ },
+
+
+ /**
+ * Advance to and return the next token in the CSS string. If the end of the CSS string has
+ * been reached, null will be returned.
+ * @param {boolean} forget - if true, the token will not be stored for the purposes of backtracking with prev().
+ * @return {PIE.Tokenizer.Token}
+ */
+ next: function( forget ) {
+ var css, ch, firstChar, match, val,
+ me = this;
+
+ function newToken( type, value ) {
+ var tok = new Tokenizer.Token( type, value );
+ if( !forget ) {
+ me.tokens.push( tok );
+ me.tokenIndex++;
+ }
+ return tok;
+ }
+ function failure() {
+ me.tokenIndex++;
+ return null;
+ }
+
+ // In case we previously backed up, return the stored token in the next slot
+ if( this.tokenIndex < this.tokens.length ) {
+ return this.tokens[ this.tokenIndex++ ];
+ }
+
+ // Move past leading whitespace characters
+ while( this.whitespace.test( this.css.charAt( this.ch ) ) ) {
+ this.ch++;
+ }
+ if( this.ch >= this.css.length ) {
+ return failure();
+ }
+
+ ch = this.ch;
+ css = this.css.substring( this.ch );
+ firstChar = css.charAt( 0 );
+ switch( firstChar ) {
+ case '#':
+ if( match = css.match( this.hashColor ) ) {
+ this.ch += match[0].length;
+ return newToken( Type.COLOR, match[0] );
+ }
+ break;
+
+ case '"':
+ case "'":
+ if( match = css.match( this.string ) ) {
+ this.ch += match[0].length;
+ return newToken( Type.STRING, match[2] || match[3] || '' );
+ }
+ break;
+
+ case "/":
+ case ",":
+ this.ch++;
+ return newToken( Type.OPERATOR, firstChar );
+
+ case 'u':
+ if( match = css.match( this.url ) ) {
+ this.ch += match[0].length;
+ return newToken( Type.URL, match[2] || match[3] || match[4] || '' );
+ }
+ }
+
+ // Numbers and values starting with numbers
+ if( match = css.match( this.number ) ) {
+ val = match[0];
+ this.ch += val.length;
+
+ // Check if it is followed by a unit
+ if( css.charAt( val.length ) === '%' ) {
+ this.ch++;
+ return newToken( Type.PERCENT, val + '%' );
+ }
+ if( match = css.substring( val.length ).match( this.ident ) ) {
+ val += match[0];
+ this.ch += match[0].length;
+ return newToken( this.unitTypes[ match[0].toLowerCase() ] || Type.DIMEN, val );
+ }
+
+ // Plain ol' number
+ return newToken( Type.NUMBER, val );
+ }
+
+ // Identifiers
+ if( match = css.match( this.ident ) ) {
+ val = match[0];
+ this.ch += val.length;
+
+ // Named colors
+ if( val.toLowerCase() in PIE.Color.names || val === 'currentColor' || val === 'transparent' ) {
+ return newToken( Type.COLOR, val );
+ }
+
+ // Functions
+ if( css.charAt( val.length ) === '(' ) {
+ this.ch++;
+
+ // Color values in function format: rgb, rgba, hsl, hsla
+ if( val.toLowerCase() in this.colorFunctions ) {
+ function isNum( tok ) {
+ return tok && tok.tokenType & Type.NUMBER;
+ }
+ function isNumOrPct( tok ) {
+ return tok && ( tok.tokenType & ( Type.NUMBER | Type.PERCENT ) );
+ }
+ function isValue( tok, val ) {
+ return tok && tok.tokenValue === val;
+ }
+ function next() {
+ return me.next( 1 );
+ }
+
+ if( ( val.charAt(0) === 'r' ? isNumOrPct( next() ) : isNum( next() ) ) &&
+ isValue( next(), ',' ) &&
+ isNumOrPct( next() ) &&
+ isValue( next(), ',' ) &&
+ isNumOrPct( next() ) &&
+ ( val === 'rgb' || val === 'hsa' || (
+ isValue( next(), ',' ) &&
+ isNum( next() )
+ ) ) &&
+ isValue( next(), ')' ) ) {
+ return newToken( Type.COLOR, this.css.substring( ch, this.ch ) );
+ }
+ return failure();
+ }
+
+ return newToken( Type.FUNCTION, val );
+ }
+
+ // Other identifier
+ return newToken( Type.IDENT, val );
+ }
+
+ // Standalone character
+ this.ch++;
+ return newToken( Type.CHARACTER, firstChar );
+ },
+
+ /**
+ * Determine whether there is another token
+ * @return {boolean}
+ */
+ hasNext: function() {
+ var next = this.next();
+ this.prev();
+ return !!next;
+ },
+
+ /**
+ * Back up and return the previous token
+ * @return {PIE.Tokenizer.Token}
+ */
+ prev: function() {
+ return this.tokens[ this.tokenIndex-- - 2 ];
+ },
+
+ /**
+ * Retrieve all the tokens in the CSS string
+ * @return {Array.<PIE.Tokenizer.Token>}
+ */
+ all: function() {
+ while( this.next() ) {}
+ return this.tokens;
+ },
+
+ /**
+ * Return a list of tokens from the current position until the given function returns
+ * true. The final token will not be included in the list.
+ * @param {function():boolean} func - test function
+ * @param {boolean} require - if true, then if the end of the CSS string is reached
+ * before the test function returns true, null will be returned instead of the
+ * tokens that have been found so far.
+ * @return {Array.<PIE.Tokenizer.Token>}
+ */
+ until: function( func, require ) {
+ var list = [], t, hit;
+ while( t = this.next() ) {
+ if( func( t ) ) {
+ hit = true;
+ this.prev();
+ break;
+ }
+ list.push( t );
+ }
+ return require && !hit ? null : list;
+ }
+ };
+
+ return Tokenizer;
+})();/**
+ * Handles calculating, caching, and detecting changes to size and position of the element.
+ * @constructor
+ * @param {Element} el the target element
+ */
+PIE.BoundsInfo = function( el ) {
+ this.targetElement = el;
+};
+PIE.BoundsInfo.prototype = {
+
+ _locked: 0,
+
+ positionChanged: function() {
+ var last = this._lastBounds,
+ bounds;
+ return !last || ( ( bounds = this.getBounds() ) && ( last.x !== bounds.x || last.y !== bounds.y ) );
+ },
+
+ sizeChanged: function() {
+ var last = this._lastBounds,
+ bounds;
+ return !last || ( ( bounds = this.getBounds() ) && ( last.w !== bounds.w || last.h !== bounds.h ) );
+ },
+
+ getLiveBounds: function() {
+ var el = this.targetElement,
+ rect = el.getBoundingClientRect(),
+ isIE9 = PIE.ieDocMode === 9,
+ isIE7 = PIE.ieVersion === 7,
+ width = rect.right - rect.left;
+ return {
+ x: rect.left,
+ y: rect.top,
+ // In some cases scrolling the page will cause IE9 to report incorrect dimensions
+ // in the rect returned by getBoundingClientRect, so we must query offsetWidth/Height
+ // instead. Also IE7 is inconsistent in using logical vs. device pixels in measurements
+ // so we must calculate the ratio and use it in certain places as a position adjustment.
+ w: isIE9 || isIE7 ? el.offsetWidth : width,
+ h: isIE9 || isIE7 ? el.offsetHeight : rect.bottom - rect.top,
+ logicalZoomRatio: ( isIE7 && width ) ? el.offsetWidth / width : 1
+ };
+ },
+
+ getBounds: function() {
+ return this._locked ?
+ ( this._lockedBounds || ( this._lockedBounds = this.getLiveBounds() ) ) :
+ this.getLiveBounds();
+ },
+
+ hasBeenQueried: function() {
+ return !!this._lastBounds;
+ },
+
+ lock: function() {
+ ++this._locked;
+ },
+
+ unlock: function() {
+ if( !--this._locked ) {
+ if( this._lockedBounds ) this._lastBounds = this._lockedBounds;
+ this._lockedBounds = null;
+ }
+ }
+
+};
+(function() {
+
+function cacheWhenLocked( fn ) {
+ var uid = PIE.Util.getUID( fn );
+ return function() {
+ if( this._locked ) {
+ var cache = this._lockedValues || ( this._lockedValues = {} );
+ return ( uid in cache ) ? cache[ uid ] : ( cache[ uid ] = fn.call( this ) );
+ } else {
+ return fn.call( this );
+ }
+ }
+}
+
+
+PIE.StyleInfoBase = {
+
+ _locked: 0,
+
+ /**
+ * Create a new StyleInfo class, with the standard constructor, and augmented by
+ * the StyleInfoBase's members.
+ * @param proto
+ */
+ newStyleInfo: function( proto ) {
+ function StyleInfo( el ) {
+ this.targetElement = el;
+ this._lastCss = this.getCss();
+ }
+ PIE.Util.merge( StyleInfo.prototype, PIE.StyleInfoBase, proto );
+ StyleInfo._propsCache = {};
+ return StyleInfo;
+ },
+
+ /**
+ * Get an object representation of the target CSS style, caching it for each unique
+ * CSS value string.
+ * @return {Object}
+ */
+ getProps: function() {
+ var css = this.getCss(),
+ cache = this.constructor._propsCache;
+ return css ? ( css in cache ? cache[ css ] : ( cache[ css ] = this.parseCss( css ) ) ) : null;
+ },
+
+ /**
+ * Get the raw CSS value for the target style
+ * @return {string}
+ */
+ getCss: cacheWhenLocked( function() {
+ var el = this.targetElement,
+ ctor = this.constructor,
+ s = el.style,
+ cs = el.currentStyle,
+ cssProp = this.cssProperty,
+ styleProp = this.styleProperty,
+ prefixedCssProp = ctor._prefixedCssProp || ( ctor._prefixedCssProp = PIE.CSS_PREFIX + cssProp ),
+ prefixedStyleProp = ctor._prefixedStyleProp || ( ctor._prefixedStyleProp = PIE.STYLE_PREFIX + styleProp.charAt(0).toUpperCase() + styleProp.substring(1) );
+ return s[ prefixedStyleProp ] || cs.getAttribute( prefixedCssProp ) || s[ styleProp ] || cs.getAttribute( cssProp );
+ } ),
+
+ /**
+ * Determine whether the target CSS style is active.
+ * @return {boolean}
+ */
+ isActive: cacheWhenLocked( function() {
+ return !!this.getProps();
+ } ),
+
+ /**
+ * Determine whether the target CSS style has changed since the last time it was used.
+ * @return {boolean}
+ */
+ changed: cacheWhenLocked( function() {
+ var currentCss = this.getCss(),
+ changed = currentCss !== this._lastCss;
+ this._lastCss = currentCss;
+ return changed;
+ } ),
+
+ cacheWhenLocked: cacheWhenLocked,
+
+ lock: function() {
+ ++this._locked;
+ },
+
+ unlock: function() {
+ if( !--this._locked ) {
+ delete this._lockedValues;
+ }
+ }
+};
+
+})();/**
+ * Handles parsing, caching, and detecting changes to background (and -pie-background) CSS
+ * @constructor
+ * @param {Element} el the target element
+ */
+PIE.BackgroundStyleInfo = PIE.StyleInfoBase.newStyleInfo( {
+
+ cssProperty: PIE.CSS_PREFIX + 'background',
+ styleProperty: PIE.STYLE_PREFIX + 'Background',
+
+ attachIdents: { 'scroll':1, 'fixed':1, 'local':1 },
+ repeatIdents: { 'repeat-x':1, 'repeat-y':1, 'repeat':1, 'no-repeat':1 },
+ originAndClipIdents: { 'padding-box':1, 'border-box':1, 'content-box':1 },
+ positionIdents: { 'top':1, 'right':1, 'bottom':1, 'left':1, 'center':1 },
+ sizeIdents: { 'contain':1, 'cover':1 },
+ propertyNames: {
+ CLIP: 'backgroundClip',
+ COLOR: 'backgroundColor',
+ IMAGE: 'backgroundImage',
+ ORIGIN: 'backgroundOrigin',
+ POSITION: 'backgroundPosition',
+ REPEAT: 'backgroundRepeat',
+ SIZE: 'backgroundSize'
+ },
+
+ /**
+ * For background styles, we support the -pie-background property but fall back to the standard
+ * backround* properties. The reason we have to use the prefixed version is that IE natively
+ * parses the standard properties and if it sees something it doesn't know how to parse, for example
+ * multiple values or gradient definitions, it will throw that away and not make it available through
+ * currentStyle.
+ *
+ * Format of return object:
+ * {
+ * color: <PIE.Color>,
+ * bgImages: [
+ * {
+ * imgType: 'image',
+ * imgUrl: 'image.png',
+ * imgRepeat: <'no-repeat' | 'repeat-x' | 'repeat-y' | 'repeat'>,
+ * bgPosition: <PIE.BgPosition>,
+ * bgAttachment: <'scroll' | 'fixed' | 'local'>,
+ * bgOrigin: <'border-box' | 'padding-box' | 'content-box'>,
+ * bgClip: <'border-box' | 'padding-box'>,
+ * bgSize: <PIE.BgSize>,
+ * origString: 'url(img.png) no-repeat top left'
+ * },
+ * {
+ * imgType: 'linear-gradient',
+ * gradientStart: <PIE.BgPosition>,
+ * angle: <PIE.Angle>,
+ * stops: [
+ * { color: <PIE.Color>, offset: <PIE.Length> },
+ * { color: <PIE.Color>, offset: <PIE.Length> }, ...
+ * ]
+ * }
+ * ]
+ * }
+ * @param {String} css
+ * @override
+ */
+ parseCss: function( css ) {
+ var el = this.targetElement,
+ cs = el.currentStyle,
+ tokenizer, token, image,
+ tok_type = PIE.Tokenizer.Type,
+ type_operator = tok_type.OPERATOR,
+ type_ident = tok_type.IDENT,
+ type_color = tok_type.COLOR,
+ tokType, tokVal,
+ beginCharIndex = 0,
+ positionIdents = this.positionIdents,
+ gradient, stop, width, height,
+ props = { bgImages: [] };
+
+ function isBgPosToken( token ) {
+ return token && token.isLengthOrPercent() || ( token.tokenType & type_ident && token.tokenValue in positionIdents );
+ }
+
+ function sizeToken( token ) {
+ return token && ( ( token.isLengthOrPercent() && PIE.getLength( token.tokenValue ) ) || ( token.tokenValue === 'auto' && 'auto' ) );
+ }
+
+ // If the CSS3-specific -pie-background property is present, parse it
+ if( this.getCss3() ) {
+ tokenizer = new PIE.Tokenizer( css );
+ image = {};
+
+ while( token = tokenizer.next() ) {
+ tokType = token.tokenType;
+ tokVal = token.tokenValue;
+
+ if( !image.imgType && tokType & tok_type.FUNCTION && tokVal === 'linear-gradient' ) {
+ gradient = { stops: [], imgType: tokVal };
+ stop = {};
+ while( token = tokenizer.next() ) {
+ tokType = token.tokenType;
+ tokVal = token.tokenValue;
+
+ // If we reached the end of the function and had at least 2 stops, flush the info
+ if( tokType & tok_type.CHARACTER && tokVal === ')' ) {
+ if( stop.color ) {
+ gradient.stops.push( stop );
+ }
+ if( gradient.stops.length > 1 ) {
+ PIE.Util.merge( image, gradient );
+ }
+ break;
+ }
+
+ // Color stop - must start with color
+ if( tokType & type_color ) {
+ // if we already have an angle/position, make sure that the previous token was a comma
+ if( gradient.angle || gradient.gradientStart ) {
+ token = tokenizer.prev();
+ if( token.tokenType !== type_operator ) {
+ break; //fail
+ }
+ tokenizer.next();
+ }
+
+ stop = {
+ color: PIE.getColor( tokVal )
+ };
+ // check for offset following color
+ token = tokenizer.next();
+ if( token.isLengthOrPercent() ) {
+ stop.offset = PIE.getLength( token.tokenValue );
+ } else {
+ tokenizer.prev();
+ }
+ }
+ // Angle - can only appear in first spot
+ else if( tokType & tok_type.ANGLE && !gradient.angle && !stop.color && !gradient.stops.length ) {
+ gradient.angle = new PIE.Angle( token.tokenValue );
+ }
+ else if( isBgPosToken( token ) && !gradient.gradientStart && !stop.color && !gradient.stops.length ) {
+ tokenizer.prev();
+ gradient.gradientStart = new PIE.BgPosition(
+ tokenizer.until( function( t ) {
+ return !isBgPosToken( t );
+ }, false )
+ );
+ }
+ else if( tokType & type_operator && tokVal === ',' ) {
+ if( stop.color ) {
+ gradient.stops.push( stop );
+ stop = {};
+ }
+ }
+ else {
+ // Found something we didn't recognize; fail without adding image
+ break;
+ }
+ }
+ }
+ else if( !image.imgType && tokType & tok_type.URL ) {
+ image.imgUrl = tokVal;
+ image.imgType = 'image';
+ }
+ else if( isBgPosToken( token ) && !image.bgPosition ) {
+ tokenizer.prev();
+ image.bgPosition = new PIE.BgPosition(
+ tokenizer.until( function( t ) {
+ return !isBgPosToken( t );
+ }, false )
+ );
+ }
+ else if( tokType & type_ident ) {
+ if( tokVal in this.repeatIdents && !image.imgRepeat ) {
+ image.imgRepeat = tokVal;
+ }
+ else if( tokVal in this.originAndClipIdents && !image.bgOrigin ) {
+ image.bgOrigin = tokVal;
+ if( ( token = tokenizer.next() ) && ( token.tokenType & type_ident ) &&
+ token.tokenValue in this.originAndClipIdents ) {
+ image.bgClip = token.tokenValue;
+ } else {
+ image.bgClip = tokVal;
+ tokenizer.prev();
+ }
+ }
+ else if( tokVal in this.attachIdents && !image.bgAttachment ) {
+ image.bgAttachment = tokVal;
+ }
+ else {
+ return null;
+ }
+ }
+ else if( tokType & type_color && !props.color ) {
+ props.color = PIE.getColor( tokVal );
+ }
+ else if( tokType & type_operator && tokVal === '/' && !image.bgSize && image.bgPosition ) {
+ // background size
+ token = tokenizer.next();
+ if( token.tokenType & type_ident && token.tokenValue in this.sizeIdents ) {
+ image.bgSize = new PIE.BgSize( token.tokenValue );
+ }
+ else if( width = sizeToken( token ) ) {
+ height = sizeToken( tokenizer.next() );
+ if ( !height ) {
+ height = width;
+ tokenizer.prev();
+ }
+ image.bgSize = new PIE.BgSize( width, height );
+ }
+ else {
+ return null;
+ }
+ }
+ // new layer
+ else if( tokType & type_operator && tokVal === ',' && image.imgType ) {
+ image.origString = css.substring( beginCharIndex, tokenizer.ch - 1 );
+ beginCharIndex = tokenizer.ch;
+ props.bgImages.push( image );
+ image = {};
+ }
+ else {
+ // Found something unrecognized; chuck everything
+ return null;
+ }
+ }
+
+ // leftovers
+ if( image.imgType ) {
+ image.origString = css.substring( beginCharIndex );
+ props.bgImages.push( image );
+ }
+ }
+
+ // Otherwise, use the standard background properties; let IE give us the values rather than parsing them
+ else {
+ this.withActualBg( PIE.ieDocMode < 9 ?
+ function() {
+ var propNames = this.propertyNames,
+ posX = cs[propNames.POSITION + 'X'],
+ posY = cs[propNames.POSITION + 'Y'],
+ img = cs[propNames.IMAGE],
+ color = cs[propNames.COLOR];
+
+ if( color !== 'transparent' ) {
+ props.color = PIE.getColor( color )
+ }
+ if( img !== 'none' ) {
+ props.bgImages = [ {
+ imgType: 'image',
+ imgUrl: new PIE.Tokenizer( img ).next().tokenValue,
+ imgRepeat: cs[propNames.REPEAT],
+ bgPosition: new PIE.BgPosition( new PIE.Tokenizer( posX + ' ' + posY ).all() )
+ } ];
+ }
+ } :
+ function() {
+ var propNames = this.propertyNames,
+ splitter = /\s*,\s*/,
+ images = cs[propNames.IMAGE].split( splitter ),
+ color = cs[propNames.COLOR],
+ repeats, positions, origins, clips, sizes, i, len, image, sizeParts;
+
+ if( color !== 'transparent' ) {
+ props.color = PIE.getColor( color )
+ }
+
+ len = images.length;
+ if( len && images[0] !== 'none' ) {
+ repeats = cs[propNames.REPEAT].split( splitter );
+ positions = cs[propNames.POSITION].split( splitter );
+ origins = cs[propNames.ORIGIN].split( splitter );
+ clips = cs[propNames.CLIP].split( splitter );
+ sizes = cs[propNames.SIZE].split( splitter );
+
+ props.bgImages = [];
+ for( i = 0; i < len; i++ ) {
+ image = images[ i ];
+ if( image && image !== 'none' ) {
+ sizeParts = sizes[i].split( ' ' );
+ props.bgImages.push( {
+ origString: image + ' ' + repeats[ i ] + ' ' + positions[ i ] + ' / ' + sizes[ i ] + ' ' +
+ origins[ i ] + ' ' + clips[ i ],
+ imgType: 'image',
+ imgUrl: new PIE.Tokenizer( image ).next().tokenValue,
+ imgRepeat: repeats[ i ],
+ bgPosition: new PIE.BgPosition( new PIE.Tokenizer( positions[ i ] ).all() ),
+ bgOrigin: origins[ i ],
+ bgClip: clips[ i ],
+ bgSize: new PIE.BgSize( sizeParts[ 0 ], sizeParts[ 1 ] )
+ } );
+ }
+ }
+ }
+ }
+ );
+ }
+
+ return ( props.color || props.bgImages[0] ) ? props : null;
+ },
+
+ /**
+ * Execute a function with the actual background styles (not overridden with runtimeStyle
+ * properties set by the renderers) available via currentStyle.
+ * @param fn
+ */
+ withActualBg: function( fn ) {
+ var isIE9 = PIE.ieDocMode > 8,
+ propNames = this.propertyNames,
+ rs = this.targetElement.runtimeStyle,
+ rsImage = rs[propNames.IMAGE],
+ rsColor = rs[propNames.COLOR],
+ rsRepeat = rs[propNames.REPEAT],
+ rsClip, rsOrigin, rsSize, rsPosition, ret;
+
+ if( rsImage ) rs[propNames.IMAGE] = '';
+ if( rsColor ) rs[propNames.COLOR] = '';
+ if( rsRepeat ) rs[propNames.REPEAT] = '';
+ if( isIE9 ) {
+ rsClip = rs[propNames.CLIP];
+ rsOrigin = rs[propNames.ORIGIN];
+ rsPosition = rs[propNames.POSITION];
+ rsSize = rs[propNames.SIZE];
+ if( rsClip ) rs[propNames.CLIP] = '';
+ if( rsOrigin ) rs[propNames.ORIGIN] = '';
+ if( rsPosition ) rs[propNames.POSITION] = '';
+ if( rsSize ) rs[propNames.SIZE] = '';
+ }
+
+ ret = fn.call( this );
+
+ if( rsImage ) rs[propNames.IMAGE] = rsImage;
+ if( rsColor ) rs[propNames.COLOR] = rsColor;
+ if( rsRepeat ) rs[propNames.REPEAT] = rsRepeat;
+ if( isIE9 ) {
+ if( rsClip ) rs[propNames.CLIP] = rsClip;
+ if( rsOrigin ) rs[propNames.ORIGIN] = rsOrigin;
+ if( rsPosition ) rs[propNames.POSITION] = rsPosition;
+ if( rsSize ) rs[propNames.SIZE] = rsSize;
+ }
+
+ return ret;
+ },
+
+ getCss: PIE.StyleInfoBase.cacheWhenLocked( function() {
+ return this.getCss3() ||
+ this.withActualBg( function() {
+ var cs = this.targetElement.currentStyle,
+ propNames = this.propertyNames;
+ return cs[propNames.COLOR] + ' ' + cs[propNames.IMAGE] + ' ' + cs[propNames.REPEAT] + ' ' +
+ cs[propNames.POSITION + 'X'] + ' ' + cs[propNames.POSITION + 'Y'];
+ } );
+ } ),
+
+ getCss3: PIE.StyleInfoBase.cacheWhenLocked( function() {
+ var el = this.targetElement;
+ return el.style[ this.styleProperty ] || el.currentStyle.getAttribute( this.cssProperty );
+ } ),
+
+ /**
+ * Tests if style.PiePngFix or the -pie-png-fix property is set to true in IE6.
+ */
+ isPngFix: function() {
+ var val = 0, el;
+ if( PIE.ieVersion < 7 ) {
+ el = this.targetElement;
+ val = ( '' + ( el.style[ PIE.STYLE_PREFIX + 'PngFix' ] || el.currentStyle.getAttribute( PIE.CSS_PREFIX + 'png-fix' ) ) === 'true' );
+ }
+ return val;
+ },
+
+ /**
+ * The isActive logic is slightly different, because getProps() always returns an object
+ * even if it is just falling back to the native background properties. But we only want
+ * to report is as being "active" if either the -pie-background override property is present
+ * and parses successfully or '-pie-png-fix' is set to true in IE6.
+ */
+ isActive: PIE.StyleInfoBase.cacheWhenLocked( function() {
+ return (this.getCss3() || this.isPngFix()) && !!this.getProps();
+ } )
+
+} );/**
+ * Handles parsing, caching, and detecting changes to border CSS
+ * @constructor
+ * @param {Element} el the target element
+ */
+PIE.BorderStyleInfo = PIE.StyleInfoBase.newStyleInfo( {
+
+ sides: [ 'Top', 'Right', 'Bottom', 'Left' ],
+ namedWidths: {
+ 'thin': '1px',
+ 'medium': '3px',
+ 'thick': '5px'
+ },
+
+ parseCss: function( css ) {
+ var w = {},
+ s = {},
+ c = {},
+ active = false,
+ colorsSame = true,
+ stylesSame = true,
+ widthsSame = true;
+
+ this.withActualBorder( function() {
+ var el = this.targetElement,
+ cs = el.currentStyle,
+ i = 0,
+ style, color, width, lastStyle, lastColor, lastWidth, side, ltr;
+ for( ; i < 4; i++ ) {
+ side = this.sides[ i ];
+
+ ltr = side.charAt(0).toLowerCase();
+ style = s[ ltr ] = cs[ 'border' + side + 'Style' ];
+ color = cs[ 'border' + side + 'Color' ];
+ width = cs[ 'border' + side + 'Width' ];
+
+ if( i > 0 ) {
+ if( style !== lastStyle ) { stylesSame = false; }
+ if( color !== lastColor ) { colorsSame = false; }
+ if( width !== lastWidth ) { widthsSame = false; }
+ }
+ lastStyle = style;
+ lastColor = color;
+ lastWidth = width;
+
+ c[ ltr ] = PIE.getColor( color );
+
+ width = w[ ltr ] = PIE.getLength( s[ ltr ] === 'none' ? '0' : ( this.namedWidths[ width ] || width ) );
+ if( width.pixels( this.targetElement ) > 0 ) {
+ active = true;
+ }
+ }
+ } );
+
+ return active ? {
+ widths: w,
+ styles: s,
+ colors: c,
+ widthsSame: widthsSame,
+ colorsSame: colorsSame,
+ stylesSame: stylesSame
+ } : null;
+ },
+
+ getCss: PIE.StyleInfoBase.cacheWhenLocked( function() {
+ var el = this.targetElement,
+ cs = el.currentStyle,
+ css;
+
+ // Don't redraw or hide borders for cells in border-collapse:collapse tables
+ if( !( el.tagName in PIE.tableCellTags && el.offsetParent.currentStyle.borderCollapse === 'collapse' ) ) {
+ this.withActualBorder( function() {
+ css = cs.borderWidth + '|' + cs.borderStyle + '|' + cs.borderColor;
+ } );
+ }
+ return css;
+ } ),
+
+ /**
+ * Execute a function with the actual border styles (not overridden with runtimeStyle
+ * properties set by the renderers) available via currentStyle.
+ * @param fn
+ */
+ withActualBorder: function( fn ) {
+ var rs = this.targetElement.runtimeStyle,
+ rsWidth = rs.borderWidth,
+ rsColor = rs.borderColor,
+ ret;
+
+ if( rsWidth ) rs.borderWidth = '';
+ if( rsColor ) rs.borderColor = '';
+
+ ret = fn.call( this );
+
+ if( rsWidth ) rs.borderWidth = rsWidth;
+ if( rsColor ) rs.borderColor = rsColor;
+
+ return ret;
+ }
+
+} );
+/**
+ * Handles parsing, caching, and detecting changes to border-radius CSS
+ * @constructor
+ * @param {Element} el the target element
+ */
+(function() {
+
+PIE.BorderRadiusStyleInfo = PIE.StyleInfoBase.newStyleInfo( {
+
+ cssProperty: 'border-radius',
+ styleProperty: 'borderRadius',
+
+ parseCss: function( css ) {
+ var p = null, x, y,
+ tokenizer, token, length,
+ hasNonZero = false;
+
+ if( css ) {
+ tokenizer = new PIE.Tokenizer( css );
+
+ function collectLengths() {
+ var arr = [], num;
+ while( ( token = tokenizer.next() ) && token.isLengthOrPercent() ) {
+ length = PIE.getLength( token.tokenValue );
+ num = length.getNumber();
+ if( num < 0 ) {
+ return null;
+ }
+ if( num > 0 ) {
+ hasNonZero = true;
+ }
+ arr.push( length );
+ }
+ return arr.length > 0 && arr.length < 5 ? {
+ 'tl': arr[0],
+ 'tr': arr[1] || arr[0],
+ 'br': arr[2] || arr[0],
+ 'bl': arr[3] || arr[1] || arr[0]
+ } : null;
+ }
+
+ // Grab the initial sequence of lengths
+ if( x = collectLengths() ) {
+ // See if there is a slash followed by more lengths, for the y-axis radii
+ if( token ) {
+ if( token.tokenType & PIE.Tokenizer.Type.OPERATOR && token.tokenValue === '/' ) {
+ y = collectLengths();
+ }
+ } else {
+ y = x;
+ }
+
+ // Treat all-zero values the same as no value
+ if( hasNonZero && x && y ) {
+ p = { x: x, y : y };
+ }
+ }
+ }
+
+ return p;
+ }
+} );
+
+var zero = PIE.getLength( '0' ),
+ zeros = { 'tl': zero, 'tr': zero, 'br': zero, 'bl': zero };
+PIE.BorderRadiusStyleInfo.ALL_ZERO = { x: zeros, y: zeros };
+
+})();/**
+ * Handles parsing, caching, and detecting changes to border-image CSS
+ * @constructor
+ * @param {Element} el the target element
+ */
+PIE.BorderImageStyleInfo = PIE.StyleInfoBase.newStyleInfo( {
+
+ cssProperty: 'border-image',
+ styleProperty: 'borderImage',
+
+ repeatIdents: { 'stretch':1, 'round':1, 'repeat':1, 'space':1 },
+
+ parseCss: function( css ) {
+ var p = null, tokenizer, token, type, value,
+ slices, widths, outsets,
+ slashCount = 0,
+ Type = PIE.Tokenizer.Type,
+ IDENT = Type.IDENT,
+ NUMBER = Type.NUMBER,
+ PERCENT = Type.PERCENT;
+
+ if( css ) {
+ tokenizer = new PIE.Tokenizer( css );
+ p = {};
+
+ function isSlash( token ) {
+ return token && ( token.tokenType & Type.OPERATOR ) && ( token.tokenValue === '/' );
+ }
+
+ function isFillIdent( token ) {
+ return token && ( token.tokenType & IDENT ) && ( token.tokenValue === 'fill' );
+ }
+
+ function collectSlicesEtc() {
+ slices = tokenizer.until( function( tok ) {
+ return !( tok.tokenType & ( NUMBER | PERCENT ) );
+ } );
+
+ if( isFillIdent( tokenizer.next() ) && !p.fill ) {
+ p.fill = true;
+ } else {
+ tokenizer.prev();
+ }
+
+ if( isSlash( tokenizer.next() ) ) {
+ slashCount++;
+ widths = tokenizer.until( function( token ) {
+ return !token.isLengthOrPercent() && !( ( token.tokenType & IDENT ) && token.tokenValue === 'auto' );
+ } );
+
+ if( isSlash( tokenizer.next() ) ) {
+ slashCount++;
+ outsets = tokenizer.until( function( token ) {
+ return !token.isLength();
+ } );
+ }
+ } else {
+ tokenizer.prev();
+ }
+ }
+
+ while( token = tokenizer.next() ) {
+ type = token.tokenType;
+ value = token.tokenValue;
+
+ // Numbers and/or 'fill' keyword: slice values. May be followed optionally by width values, followed optionally by outset values
+ if( type & ( NUMBER | PERCENT ) && !slices ) {
+ tokenizer.prev();
+ collectSlicesEtc();
+ }
+ else if( isFillIdent( token ) && !p.fill ) {
+ p.fill = true;
+ collectSlicesEtc();
+ }
+
+ // Idents: one or values for 'repeat'
+ else if( ( type & IDENT ) && this.repeatIdents[value] && !p.repeat ) {
+ p.repeat = { h: value };
+ if( token = tokenizer.next() ) {
+ if( ( token.tokenType & IDENT ) && this.repeatIdents[token.tokenValue] ) {
+ p.repeat.v = token.tokenValue;
+ } else {
+ tokenizer.prev();
+ }
+ }
+ }
+
+ // URL of the image
+ else if( ( type & Type.URL ) && !p.src ) {
+ p.src = value;
+ }
+
+ // Found something unrecognized; exit.
+ else {
+ return null;
+ }
+ }
+
+ // Validate what we collected
+ if( !p.src || !slices || slices.length < 1 || slices.length > 4 ||
+ ( widths && widths.length > 4 ) || ( slashCount === 1 && widths.length < 1 ) ||
+ ( outsets && outsets.length > 4 ) || ( slashCount === 2 && outsets.length < 1 ) ) {
+ return null;
+ }
+
+ // Fill in missing values
+ if( !p.repeat ) {
+ p.repeat = { h: 'stretch' };
+ }
+ if( !p.repeat.v ) {
+ p.repeat.v = p.repeat.h;
+ }
+
+ function distributeSides( tokens, convertFn ) {
+ return {
+ 't': convertFn( tokens[0] ),
+ 'r': convertFn( tokens[1] || tokens[0] ),
+ 'b': convertFn( tokens[2] || tokens[0] ),
+ 'l': convertFn( tokens[3] || tokens[1] || tokens[0] )
+ };
+ }
+
+ p.slice = distributeSides( slices, function( tok ) {
+ return PIE.getLength( ( tok.tokenType & NUMBER ) ? tok.tokenValue + 'px' : tok.tokenValue );
+ } );
+
+ if( widths && widths[0] ) {
+ p.widths = distributeSides( widths, function( tok ) {
+ return tok.isLengthOrPercent() ? PIE.getLength( tok.tokenValue ) : tok.tokenValue;
+ } );
+ }
+
+ if( outsets && outsets[0] ) {
+ p.outset = distributeSides( outsets, function( tok ) {
+ return tok.isLength() ? PIE.getLength( tok.tokenValue ) : tok.tokenValue;
+ } );
+ }
+ }
+
+ return p;
+ }
+
+} );/**
+ * Handles parsing, caching, and detecting changes to box-shadow CSS
+ * @constructor
+ * @param {Element} el the target element
+ */
+PIE.BoxShadowStyleInfo = PIE.StyleInfoBase.newStyleInfo( {
+
+ cssProperty: 'box-shadow',
+ styleProperty: 'boxShadow',
+
+ parseCss: function( css ) {
+ var props,
+ getLength = PIE.getLength,
+ Type = PIE.Tokenizer.Type,
+ tokenizer;
+
+ if( css ) {
+ tokenizer = new PIE.Tokenizer( css );
+ props = { outset: [], inset: [] };
+
+ function parseItem() {
+ var token, type, value, color, lengths, inset, len;
+
+ while( token = tokenizer.next() ) {
+ value = token.tokenValue;
+ type = token.tokenType;
+
+ if( type & Type.OPERATOR && value === ',' ) {
+ break;
+ }
+ else if( token.isLength() && !lengths ) {
+ tokenizer.prev();
+ lengths = tokenizer.until( function( token ) {
+ return !token.isLength();
+ } );
+ }
+ else if( type & Type.COLOR && !color ) {
+ color = value;
+ }
+ else if( type & Type.IDENT && value === 'inset' && !inset ) {
+ inset = true;
+ }
+ else { //encountered an unrecognized token; fail.
+ return false;
+ }
+ }
+
+ len = lengths && lengths.length;
+ if( len > 1 && len < 5 ) {
+ ( inset ? props.inset : props.outset ).push( {
+ xOffset: getLength( lengths[0].tokenValue ),
+ yOffset: getLength( lengths[1].tokenValue ),
+ blur: getLength( lengths[2] ? lengths[2].tokenValue : '0' ),
+ spread: getLength( lengths[3] ? lengths[3].tokenValue : '0' ),
+ color: PIE.getColor( color || 'currentColor' )
+ } );
+ return true;
+ }
+ return false;
+ }
+
+ while( parseItem() ) {}
+ }
+
+ return props && ( props.inset.length || props.outset.length ) ? props : null;
+ }
+} );
+/**
+ * Retrieves the state of the element's visibility and display
+ * @constructor
+ * @param {Element} el the target element
+ */
+PIE.VisibilityStyleInfo = PIE.StyleInfoBase.newStyleInfo( {
+
+ getCss: PIE.StyleInfoBase.cacheWhenLocked( function() {
+ var cs = this.targetElement.currentStyle;
+ return cs.visibility + '|' + cs.display;
+ } ),
+
+ parseCss: function() {
+ var el = this.targetElement,
+ rs = el.runtimeStyle,
+ cs = el.currentStyle,
+ rsVis = rs.visibility,
+ csVis;
+
+ rs.visibility = '';
+ csVis = cs.visibility;
+ rs.visibility = rsVis;
+
+ return {
+ visible: csVis !== 'hidden',
+ displayed: cs.display !== 'none'
+ }
+ },
+
+ /**
+ * Always return false for isActive, since this property alone will not trigger
+ * a renderer to do anything.
+ */
+ isActive: function() {
+ return false;
+ }
+
+} );
+PIE.RendererBase = {
+
+ /**
+ * Create a new Renderer class, with the standard constructor, and augmented by
+ * the RendererBase's members.
+ * @param proto
+ */
+ newRenderer: function( proto ) {
+ function Renderer( el, boundsInfo, styleInfos, parent ) {
+ this.targetElement = el;
+ this.boundsInfo = boundsInfo;
+ this.styleInfos = styleInfos;
+ this.parent = parent;
+ }
+ PIE.Util.merge( Renderer.prototype, PIE.RendererBase, proto );
+ return Renderer;
+ },
+
+ /**
+ * Flag indicating the element has already been positioned at least once.
+ * @type {boolean}
+ */
+ isPositioned: false,
+
+ /**
+ * Determine if the renderer needs to be updated
+ * @return {boolean}
+ */
+ needsUpdate: function() {
+ return false;
+ },
+
+ /**
+ * Run any preparation logic that would affect the main update logic of this
+ * renderer or any of the other renderers, e.g. things that might affect the
+ * element's size or style properties.
+ */
+ prepareUpdate: PIE.emptyFn,
+
+ /**
+ * Tell the renderer to update based on modified properties
+ */
+ updateProps: function() {
+ this.destroy();
+ if( this.isActive() ) {
+ this.draw();
+ }
+ },
+
+ /**
+ * Tell the renderer to update based on modified element position
+ */
+ updatePos: function() {
+ this.isPositioned = true;
+ },
+
+ /**
+ * Tell the renderer to update based on modified element dimensions
+ */
+ updateSize: function() {
+ if( this.isActive() ) {
+ this.draw();
+ } else {
+ this.destroy();
+ }
+ },
+
+
+ /**
+ * Add a layer element, with the given z-order index, to the renderer's main box element. We can't use
+ * z-index because that breaks when the root rendering box's z-index is 'auto' in IE8+ standards mode.
+ * So instead we make sure they are inserted into the DOM in the correct order.
+ * @param {number} index
+ * @param {Element} el
+ */
+ addLayer: function( index, el ) {
+ this.removeLayer( index );
+ for( var layers = this._layers || ( this._layers = [] ), i = index + 1, len = layers.length, layer; i < len; i++ ) {
+ layer = layers[i];
+ if( layer ) {
+ break;
+ }
+ }
+ layers[index] = el;
+ this.getBox().insertBefore( el, layer || null );
+ },
+
+ /**
+ * Retrieve a layer element by its index, or null if not present
+ * @param {number} index
+ * @return {Element}
+ */
+ getLayer: function( index ) {
+ var layers = this._layers;
+ return layers && layers[index] || null;
+ },
+
+ /**
+ * Remove a layer element by its index
+ * @param {number} index
+ */
+ removeLayer: function( index ) {
+ var layer = this.getLayer( index ),
+ box = this._box;
+ if( layer && box ) {
+ box.removeChild( layer );
+ this._layers[index] = null;
+ }
+ },
+
+
+ /**
+ * Get a VML shape by name, creating it if necessary.
+ * @param {string} name A name identifying the element
+ * @param {string=} subElName If specified a subelement of the shape will be created with this tag name
+ * @param {Element} parent The parent element for the shape; will be ignored if 'group' is specified
+ * @param {number=} group If specified, an ordinal group for the shape. 1 or greater. Groups are rendered
+ * using container elements in the correct order, to get correct z stacking without z-index.
+ */
+ getShape: function( name, subElName, parent, group ) {
+ var shapes = this._shapes || ( this._shapes = {} ),
+ shape = shapes[ name ],
+ s;
+
+ if( !shape ) {
+ shape = shapes[ name ] = PIE.Util.createVmlElement( 'shape' );
+ if( subElName ) {
+ shape.appendChild( shape[ subElName ] = PIE.Util.createVmlElement( subElName ) );
+ }
+
+ if( group ) {
+ parent = this.getLayer( group );
+ if( !parent ) {
+ this.addLayer( group, doc.createElement( 'group' + group ) );
+ parent = this.getLayer( group );
+ }
+ }
+
+ parent.appendChild( shape );
+
+ s = shape.style;
+ s.position = 'absolute';
+ s.left = s.top = 0;
+ s['behavior'] = 'url(#default#VML)';
+ }
+ return shape;
+ },
+
+ /**
+ * Delete a named shape which was created by getShape(). Returns true if a shape with the
+ * given name was found and deleted, or false if there was no shape of that name.
+ * @param {string} name
+ * @return {boolean}
+ */
+ deleteShape: function( name ) {
+ var shapes = this._shapes,
+ shape = shapes && shapes[ name ];
+ if( shape ) {
+ shape.parentNode.removeChild( shape );
+ delete shapes[ name ];
+ }
+ return !!shape;
+ },
+
+
+ /**
+ * For a given set of border radius length/percentage values, convert them to concrete pixel
+ * values based on the current size of the target element.
+ * @param {Object} radii
+ * @return {Object}
+ */
+ getRadiiPixels: function( radii ) {
+ var el = this.targetElement,
+ bounds = this.boundsInfo.getBounds(),
+ w = bounds.w,
+ h = bounds.h,
+ tlX, tlY, trX, trY, brX, brY, blX, blY, f;
+
+ tlX = radii.x['tl'].pixels( el, w );
+ tlY = radii.y['tl'].pixels( el, h );
+ trX = radii.x['tr'].pixels( el, w );
+ trY = radii.y['tr'].pixels( el, h );
+ brX = radii.x['br'].pixels( el, w );
+ brY = radii.y['br'].pixels( el, h );
+ blX = radii.x['bl'].pixels( el, w );
+ blY = radii.y['bl'].pixels( el, h );
+
+ // If any corner ellipses overlap, reduce them all by the appropriate factor. This formula
+ // is taken straight from the CSS3 Backgrounds and Borders spec.
+ f = Math.min(
+ w / ( tlX + trX ),
+ h / ( trY + brY ),
+ w / ( blX + brX ),
+ h / ( tlY + blY )
+ );
+ if( f < 1 ) {
+ tlX *= f;
+ tlY *= f;
+ trX *= f;
+ trY *= f;
+ brX *= f;
+ brY *= f;
+ blX *= f;
+ blY *= f;
+ }
+
+ return {
+ x: {
+ 'tl': tlX,
+ 'tr': trX,
+ 'br': brX,
+ 'bl': blX
+ },
+ y: {
+ 'tl': tlY,
+ 'tr': trY,
+ 'br': brY,
+ 'bl': blY
+ }
+ }
+ },
+
+ /**
+ * Return the VML path string for the element's background box, with corners rounded.
+ * @param {Object.<{t:number, r:number, b:number, l:number}>} shrink - if present, specifies number of
+ * pixels to shrink the box path inward from the element's four sides.
+ * @param {number=} mult If specified, all coordinates will be multiplied by this number
+ * @param {Object=} radii If specified, this will be used for the corner radii instead of the properties
+ * from this renderer's borderRadiusInfo object.
+ * @return {string} the VML path
+ */
+ getBoxPath: function( shrink, mult, radii ) {
+ mult = mult || 1;
+
+ var r, str,
+ bounds = this.boundsInfo.getBounds(),
+ w = bounds.w * mult,
+ h = bounds.h * mult,
+ radInfo = this.styleInfos.borderRadiusInfo,
+ floor = Math.floor, ceil = Math.ceil,
+ shrinkT = shrink ? shrink.t * mult : 0,
+ shrinkR = shrink ? shrink.r * mult : 0,
+ shrinkB = shrink ? shrink.b * mult : 0,
+ shrinkL = shrink ? shrink.l * mult : 0,
+ tlX, tlY, trX, trY, brX, brY, blX, blY;
+
+ if( radii || radInfo.isActive() ) {
+ r = this.getRadiiPixels( radii || radInfo.getProps() );
+
+ tlX = r.x['tl'] * mult;
+ tlY = r.y['tl'] * mult;
+ trX = r.x['tr'] * mult;
+ trY = r.y['tr'] * mult;
+ brX = r.x['br'] * mult;
+ brY = r.y['br'] * mult;
+ blX = r.x['bl'] * mult;
+ blY = r.y['bl'] * mult;
+
+ str = 'm' + floor( shrinkL ) + ',' + floor( tlY ) +
+ 'qy' + floor( tlX ) + ',' + floor( shrinkT ) +
+ 'l' + ceil( w - trX ) + ',' + floor( shrinkT ) +
+ 'qx' + ceil( w - shrinkR ) + ',' + floor( trY ) +
+ 'l' + ceil( w - shrinkR ) + ',' + ceil( h - brY ) +
+ 'qy' + ceil( w - brX ) + ',' + ceil( h - shrinkB ) +
+ 'l' + floor( blX ) + ',' + ceil( h - shrinkB ) +
+ 'qx' + floor( shrinkL ) + ',' + ceil( h - blY ) + ' x e';
+ } else {
+ // simplified path for non-rounded box
+ str = 'm' + floor( shrinkL ) + ',' + floor( shrinkT ) +
+ 'l' + ceil( w - shrinkR ) + ',' + floor( shrinkT ) +
+ 'l' + ceil( w - shrinkR ) + ',' + ceil( h - shrinkB ) +
+ 'l' + floor( shrinkL ) + ',' + ceil( h - shrinkB ) +
+ 'xe';
+ }
+ return str;
+ },
+
+
+ /**
+ * Get the container element for the shapes, creating it if necessary.
+ */
+ getBox: function() {
+ var box = this.parent.getLayer( this.boxZIndex ), s;
+
+ if( !box ) {
+ box = doc.createElement( this.boxName );
+ s = box.style;
+ s.position = 'absolute';
+ s.top = s.left = 0;
+ this.parent.addLayer( this.boxZIndex, box );
+ }
+
+ return box;
+ },
+
+
+ /**
+ * Hide the actual border of the element. In IE7 and up we can just set its color to transparent;
+ * however IE6 does not support transparent borders so we have to get tricky with it. Also, some elements
+ * like form buttons require removing the border width altogether, so for those we increase the padding
+ * by the border size.
+ */
+ hideBorder: function() {
+ var el = this.targetElement,
+ cs = el.currentStyle,
+ rs = el.runtimeStyle,
+ tag = el.tagName,
+ isIE6 = PIE.ieVersion === 6,
+ sides, side, i;
+
+ if( ( isIE6 && ( tag in PIE.childlessElements || tag === 'FIELDSET' ) ) ||
+ tag === 'BUTTON' || ( tag === 'INPUT' && el.type in PIE.inputButtonTypes ) ) {
+ rs.borderWidth = '';
+ sides = this.styleInfos.borderInfo.sides;
+ for( i = sides.length; i--; ) {
+ side = sides[ i ];
+ rs[ 'padding' + side ] = '';
+ rs[ 'padding' + side ] = ( PIE.getLength( cs[ 'padding' + side ] ) ).pixels( el ) +
+ ( PIE.getLength( cs[ 'border' + side + 'Width' ] ) ).pixels( el ) +
+ ( PIE.ieVersion !== 8 && i % 2 ? 1 : 0 ); //needs an extra horizontal pixel to counteract the extra "inner border" going away
+ }
+ rs.borderWidth = 0;
+ }
+ else if( isIE6 ) {
+ // Wrap all the element's children in a custom element, set the element to visiblity:hidden,
+ // and set the wrapper element to visiblity:visible. This hides the outer element's decorations
+ // (background and border) but displays all the contents.
+ // TODO find a better way to do this that doesn't mess up the DOM parent-child relationship,
+ // as this can interfere with other author scripts which add/modify/delete children. Also, this
+ // won't work for elements which cannot take children, e.g. input/button/textarea/img/etc. Look into
+ // using a compositor filter or some other filter which masks the border.
+ if( el.childNodes.length !== 1 || el.firstChild.tagName !== 'ie6-mask' ) {
+ var cont = doc.createElement( 'ie6-mask' ),
+ s = cont.style, child;
+ s.visibility = 'visible';
+ s.zoom = 1;
+ while( child = el.firstChild ) {
+ cont.appendChild( child );
+ }
+ el.appendChild( cont );
+ rs.visibility = 'hidden';
+ }
+ }
+ else {
+ rs.borderColor = 'transparent';
+ }
+ },
+
+ unhideBorder: function() {
+
+ },
+
+
+ /**
+ * Destroy the rendered objects. This is a base implementation which handles common renderer
+ * structures, but individual renderers may override as necessary.
+ */
+ destroy: function() {
+ this.parent.removeLayer( this.boxZIndex );
+ delete this._shapes;
+ delete this._layers;
+ }
+};
+/**
+ * Root renderer; creates the outermost container element and handles keeping it aligned
+ * with the target element's size and position.
+ * @param {Element} el The target element
+ * @param {Object} styleInfos The StyleInfo objects
+ */
+PIE.RootRenderer = PIE.RendererBase.newRenderer( {
+
+ isActive: function() {
+ var children = this.childRenderers;
+ for( var i in children ) {
+ if( children.hasOwnProperty( i ) && children[ i ].isActive() ) {
+ return true;
+ }
+ }
+ return false;
+ },
+
+ needsUpdate: function() {
+ return this.styleInfos.visibilityInfo.changed();
+ },
+
+ updatePos: function() {
+ if( this.isActive() ) {
+ var el = this.getPositioningElement(),
+ par = el,
+ docEl,
+ parRect,
+ tgtCS = el.currentStyle,
+ tgtPos = tgtCS.position,
+ boxPos,
+ s = this.getBox().style, cs,
+ x = 0, y = 0,
+ elBounds = this.boundsInfo.getBounds(),
+ logicalZoomRatio = elBounds.logicalZoomRatio;
+
+ if( tgtPos === 'fixed' && PIE.ieVersion > 6 ) {
+ x = elBounds.x * logicalZoomRatio;
+ y = elBounds.y * logicalZoomRatio;
+ boxPos = tgtPos;
+ } else {
+ // Get the element's offsets from its nearest positioned ancestor. Uses
+ // getBoundingClientRect for accuracy and speed.
+ do {
+ par = par.offsetParent;
+ } while( par && ( par.currentStyle.position === 'static' ) );
+ if( par ) {
+ parRect = par.getBoundingClientRect();
+ cs = par.currentStyle;
+ x = ( elBounds.x - parRect.left ) * logicalZoomRatio - ( parseFloat(cs.borderLeftWidth) || 0 );
+ y = ( elBounds.y - parRect.top ) * logicalZoomRatio - ( parseFloat(cs.borderTopWidth) || 0 );
+ } else {
+ docEl = doc.documentElement;
+ x = ( elBounds.x + docEl.scrollLeft - docEl.clientLeft ) * logicalZoomRatio;
+ y = ( elBounds.y + docEl.scrollTop - docEl.clientTop ) * logicalZoomRatio;
+ }
+ boxPos = 'absolute';
+ }
+
+ s.position = boxPos;
+ s.left = x;
+ s.top = y;
+ s.zIndex = tgtPos === 'static' ? -1 : tgtCS.zIndex;
+ this.isPositioned = true;
+ }
+ },
+
+ updateSize: PIE.emptyFn,
+
+ updateVisibility: function() {
+ var vis = this.styleInfos.visibilityInfo.getProps();
+ this.getBox().style.display = ( vis.visible && vis.displayed ) ? '' : 'none';
+ },
+
+ updateProps: function() {
+ if( this.isActive() ) {
+ this.updateVisibility();
+ } else {
+ this.destroy();
+ }
+ },
+
+ getPositioningElement: function() {
+ var el = this.targetElement;
+ return el.tagName in PIE.tableCellTags ? el.offsetParent : el;
+ },
+
+ getBox: function() {
+ var box = this._box, el;
+ if( !box ) {
+ el = this.getPositioningElement();
+ box = this._box = doc.createElement( 'css3-container' );
+ box.style['direction'] = 'ltr'; //fix positioning bug in rtl environments
+
+ this.updateVisibility();
+
+ el.parentNode.insertBefore( box, el );
+ }
+ return box;
+ },
+
+ finishUpdate: PIE.emptyFn,
+
+ destroy: function() {
+ var box = this._box, par;
+ if( box && ( par = box.parentNode ) ) {
+ par.removeChild( box );
+ }
+ delete this._box;
+ delete this._layers;
+ }
+
+} );
+/**
+ * Renderer for element backgrounds.
+ * @constructor
+ * @param {Element} el The target element
+ * @param {Object} styleInfos The StyleInfo objects
+ * @param {PIE.RootRenderer} parent
+ */
+PIE.BackgroundRenderer = PIE.RendererBase.newRenderer( {
+
+ boxZIndex: 2,
+ boxName: 'background',
+
+ needsUpdate: function() {
+ var si = this.styleInfos;
+ return si.backgroundInfo.changed() || si.borderRadiusInfo.changed();
+ },
+
+ isActive: function() {
+ var si = this.styleInfos;
+ return si.borderImageInfo.isActive() ||
+ si.borderRadiusInfo.isActive() ||
+ si.backgroundInfo.isActive() ||
+ ( si.boxShadowInfo.isActive() && si.boxShadowInfo.getProps().inset );
+ },
+
+ /**
+ * Draw the shapes
+ */
+ draw: function() {
+ var bounds = this.boundsInfo.getBounds();
+ if( bounds.w && bounds.h ) {
+ this.drawBgColor();
+ this.drawBgImages();
+ }
+ },
+
+ /**
+ * Draw the background color shape
+ */
+ drawBgColor: function() {
+ var props = this.styleInfos.backgroundInfo.getProps(),
+ bounds = this.boundsInfo.getBounds(),
+ el = this.targetElement,
+ color = props && props.color,
+ shape, w, h, s, alpha;
+
+ if( color && color.alpha() > 0 ) {
+ this.hideBackground();
+
+ shape = this.getShape( 'bgColor', 'fill', this.getBox(), 1 );
+ w = bounds.w;
+ h = bounds.h;
+ shape.stroked = false;
+ shape.coordsize = w * 2 + ',' + h * 2;
+ shape.coordorigin = '1,1';
+ shape.path = this.getBoxPath( null, 2 );
+ s = shape.style;
+ s.width = w;
+ s.height = h;
+ shape.fill.color = color.colorValue( el );
+
+ alpha = color.alpha();
+ if( alpha < 1 ) {
+ shape.fill.opacity = alpha;
+ }
+ } else {
+ this.deleteShape( 'bgColor' );
+ }
+ },
+
+ /**
+ * Draw all the background image layers
+ */
+ drawBgImages: function() {
+ var props = this.styleInfos.backgroundInfo.getProps(),
+ bounds = this.boundsInfo.getBounds(),
+ images = props && props.bgImages,
+ img, shape, w, h, s, i;
+
+ if( images ) {
+ this.hideBackground();
+
+ w = bounds.w;
+ h = bounds.h;
+
+ i = images.length;
+ while( i-- ) {
+ img = images[i];
+ shape = this.getShape( 'bgImage' + i, 'fill', this.getBox(), 2 );
+
+ shape.stroked = false;
+ shape.fill.type = 'tile';
+ shape.fillcolor = 'none';
+ shape.coordsize = w * 2 + ',' + h * 2;
+ shape.coordorigin = '1,1';
+ shape.path = this.getBoxPath( 0, 2 );
+ s = shape.style;
+ s.width = w;
+ s.height = h;
+
+ if( img.imgType === 'linear-gradient' ) {
+ this.addLinearGradient( shape, img );
+ }
+ else {
+ shape.fill.src = img.imgUrl;
+ this.positionBgImage( shape, i );
+ }
+ }
+ }
+
+ // Delete any bgImage shapes previously created which weren't used above
+ i = images ? images.length : 0;
+ while( this.deleteShape( 'bgImage' + i++ ) ) {}
+ },
+
+
+ /**
+ * Set the position and clipping of the background image for a layer
+ * @param {Element} shape
+ * @param {number} index
+ */
+ positionBgImage: function( shape, index ) {
+ var me = this;
+ PIE.Util.withImageSize( shape.fill.src, function( size ) {
+ var el = me.targetElement,
+ bounds = me.boundsInfo.getBounds(),
+ elW = bounds.w,
+ elH = bounds.h;
+
+ // It's possible that the element dimensions are zero now but weren't when the original
+ // update executed, make sure that's not the case to avoid divide-by-zero error
+ if( elW && elH ) {
+ var fill = shape.fill,
+ si = me.styleInfos,
+ border = si.borderInfo.getProps(),
+ bw = border && border.widths,
+ bwT = bw ? bw['t'].pixels( el ) : 0,
+ bwR = bw ? bw['r'].pixels( el ) : 0,
+ bwB = bw ? bw['b'].pixels( el ) : 0,
+ bwL = bw ? bw['l'].pixels( el ) : 0,
+ bg = si.backgroundInfo.getProps().bgImages[ index ],
+ bgPos = bg.bgPosition ? bg.bgPosition.coords( el, elW - size.w - bwL - bwR, elH - size.h - bwT - bwB ) : { x:0, y:0 },
+ repeat = bg.imgRepeat,
+ pxX, pxY,
+ clipT = 0, clipL = 0,
+ clipR = elW + 1, clipB = elH + 1, //make sure the default clip region is not inside the box (by a subpixel)
+ clipAdjust = PIE.ieVersion === 8 ? 0 : 1; //prior to IE8 requires 1 extra pixel in the image clip region
+
+ // Positioning - find the pixel offset from the top/left and convert to a ratio
+ // The position is shifted by half a pixel, to adjust for the half-pixel coordorigin shift which is
+ // needed to fix antialiasing but makes the bg image fuzzy.
+ pxX = Math.round( bgPos.x ) + bwL + 0.5;
+ pxY = Math.round( bgPos.y ) + bwT + 0.5;
+ fill.position = ( pxX / elW ) + ',' + ( pxY / elH );
+
+ // Set the size of the image. We have to actually set it to px values otherwise it will not honor
+ // the user's browser zoom level and always display at its natural screen size.
+ fill['size']['x'] = 1; //Can be any value, just has to be set to "prime" it so the next line works. Weird!
+ fill['size'] = size.w + 'px,' + size.h + 'px';
+
+ // Repeating - clip the image shape
+ if( repeat && repeat !== 'repeat' ) {
+ if( repeat === 'repeat-x' || repeat === 'no-repeat' ) {
+ clipT = pxY + 1;
+ clipB = pxY + size.h + clipAdjust;
+ }
+ if( repeat === 'repeat-y' || repeat === 'no-repeat' ) {
+ clipL = pxX + 1;
+ clipR = pxX + size.w + clipAdjust;
+ }
+ shape.style.clip = 'rect(' + clipT + 'px,' + clipR + 'px,' + clipB + 'px,' + clipL + 'px)';
+ }
+ }
+ } );
+ },
+
+
+ /**
+ * Draw the linear gradient for a gradient layer
+ * @param {Element} shape
+ * @param {Object} info The object holding the information about the gradient
+ */
+ addLinearGradient: function( shape, info ) {
+ var el = this.targetElement,
+ bounds = this.boundsInfo.getBounds(),
+ w = bounds.w,
+ h = bounds.h,
+ fill = shape.fill,
+ stops = info.stops,
+ stopCount = stops.length,
+ PI = Math.PI,
+ GradientUtil = PIE.GradientUtil,
+ perpendicularIntersect = GradientUtil.perpendicularIntersect,
+ distance = GradientUtil.distance,
+ metrics = GradientUtil.getGradientMetrics( el, w, h, info ),
+ angle = metrics.angle,
+ startX = metrics.startX,
+ startY = metrics.startY,
+ startCornerX = metrics.startCornerX,
+ startCornerY = metrics.startCornerY,
+ endCornerX = metrics.endCornerX,
+ endCornerY = metrics.endCornerY,
+ deltaX = metrics.deltaX,
+ deltaY = metrics.deltaY,
+ lineLength = metrics.lineLength,
+ vmlAngle, vmlGradientLength, vmlColors,
+ stopPx, vmlOffsetPct,
+ p, i, j, before, after;
+
+ // In VML land, the angle of the rendered gradient depends on the aspect ratio of the shape's
+ // bounding box; for example specifying a 45 deg angle actually results in a gradient
+ // drawn diagonally from one corner to its opposite corner, which will only appear to the
+ // viewer as 45 degrees if the shape is equilateral. We adjust for this by taking the x/y deltas
+ // between the start and end points, multiply one of them by the shape's aspect ratio,
+ // and get their arctangent, resulting in an appropriate VML angle. If the angle is perfectly
+ // horizontal or vertical then we don't need to do this conversion.
+ vmlAngle = ( angle % 90 ) ? Math.atan2( deltaX * w / h, deltaY ) / PI * 180 : ( angle + 90 );
+
+ // VML angles are 180 degrees offset from CSS angles
+ vmlAngle += 180;
+ vmlAngle = vmlAngle % 360;
+
+ // Add all the stops to the VML 'colors' list, including the first and last stops.
+ // For each, we find its pixel offset along the gradient-line; if the offset of a stop is less
+ // than that of its predecessor we increase it to be equal. We then map that pixel offset to a
+ // percentage along the VML gradient-line, which runs from shape corner to corner.
+ p = perpendicularIntersect( startCornerX, startCornerY, angle, endCornerX, endCornerY );
+ vmlGradientLength = distance( startCornerX, startCornerY, p[0], p[1] );
+ vmlColors = [];
+ p = perpendicularIntersect( startX, startY, angle, startCornerX, startCornerY );
+ vmlOffsetPct = distance( startX, startY, p[0], p[1] ) / vmlGradientLength * 100;
+
+ // Find the pixel offsets along the CSS3 gradient-line for each stop.
+ stopPx = [];
+ for( i = 0; i < stopCount; i++ ) {
+ stopPx.push( stops[i].offset ? stops[i].offset.pixels( el, lineLength ) :
+ i === 0 ? 0 : i === stopCount - 1 ? lineLength : null );
+ }
+ // Fill in gaps with evenly-spaced offsets
+ for( i = 1; i < stopCount; i++ ) {
+ if( stopPx[ i ] === null ) {
+ before = stopPx[ i - 1 ];
+ j = i;
+ do {
+ after = stopPx[ ++j ];
+ } while( after === null );
+ stopPx[ i ] = before + ( after - before ) / ( j - i + 1 );
+ }
+ // Make sure each stop's offset is no less than the one before it
+ stopPx[ i ] = Math.max( stopPx[ i ], stopPx[ i - 1 ] );
+ }
+
+ // Convert to percentage along the VML gradient line and add to the VML 'colors' value
+ for( i = 0; i < stopCount; i++ ) {
+ vmlColors.push(
+ ( vmlOffsetPct + ( stopPx[ i ] / vmlGradientLength * 100 ) ) + '% ' + stops[i].color.colorValue( el )
+ );
+ }
+
+ // Now, finally, we're ready to render the gradient fill. Set the start and end colors to
+ // the first and last stop colors; this just sets outer bounds for the gradient.
+ fill['angle'] = vmlAngle;
+ fill['type'] = 'gradient';
+ fill['method'] = 'sigma';
+ fill['color'] = stops[0].color.colorValue( el );
+ fill['color2'] = stops[stopCount - 1].color.colorValue( el );
+ if( fill['colors'] ) { //sometimes the colors object isn't initialized so we have to assign it directly (?)
+ fill['colors'].value = vmlColors.join( ',' );
+ } else {
+ fill['colors'] = vmlColors.join( ',' );
+ }
+ },
+
+
+ /**
+ * Hide the actual background image and color of the element.
+ */
+ hideBackground: function() {
+ var rs = this.targetElement.runtimeStyle;
+ rs.backgroundImage = 'url(about:blank)'; //ensures the background area reacts to mouse events
+ rs.backgroundColor = 'transparent';
+ },
+
+ destroy: function() {
+ PIE.RendererBase.destroy.call( this );
+ var rs = this.targetElement.runtimeStyle;
+ rs.backgroundImage = rs.backgroundColor = '';
+ }
+
+} );
+/**
+ * Renderer for element borders.
+ * @constructor
+ * @param {Element} el The target element
+ * @param {Object} styleInfos The StyleInfo objects
+ * @param {PIE.RootRenderer} parent
+ */
+PIE.BorderRenderer = PIE.RendererBase.newRenderer( {
+
+ boxZIndex: 4,
+ boxName: 'border',
+
+ needsUpdate: function() {
+ var si = this.styleInfos;
+ return si.borderInfo.changed() || si.borderRadiusInfo.changed();
+ },
+
+ isActive: function() {
+ var si = this.styleInfos;
+ return si.borderRadiusInfo.isActive() &&
+ !si.borderImageInfo.isActive() &&
+ si.borderInfo.isActive(); //check BorderStyleInfo last because it's the most expensive
+ },
+
+ /**
+ * Draw the border shape(s)
+ */
+ draw: function() {
+ var el = this.targetElement,
+ props = this.styleInfos.borderInfo.getProps(),
+ bounds = this.boundsInfo.getBounds(),
+ w = bounds.w,
+ h = bounds.h,
+ shape, stroke, s,
+ segments, seg, i, len;
+
+ if( props ) {
+ this.hideBorder();
+
+ segments = this.getBorderSegments( 2 );
+ for( i = 0, len = segments.length; i < len; i++) {
+ seg = segments[i];
+ shape = this.getShape( 'borderPiece' + i, seg.stroke ? 'stroke' : 'fill', this.getBox() );
+ shape.coordsize = w * 2 + ',' + h * 2;
+ shape.coordorigin = '1,1';
+ shape.path = seg.path;
+ s = shape.style;
+ s.width = w;
+ s.height = h;
+
+ shape.filled = !!seg.fill;
+ shape.stroked = !!seg.stroke;
+ if( seg.stroke ) {
+ stroke = shape.stroke;
+ stroke['weight'] = seg.weight + 'px';
+ stroke.color = seg.color.colorValue( el );
+ stroke['dashstyle'] = seg.stroke === 'dashed' ? '2 2' : seg.stroke === 'dotted' ? '1 1' : 'solid';
+ stroke['linestyle'] = seg.stroke === 'double' && seg.weight > 2 ? 'ThinThin' : 'Single';
+ } else {
+ shape.fill.color = seg.fill.colorValue( el );
+ }
+ }
+
+ // remove any previously-created border shapes which didn't get used above
+ while( this.deleteShape( 'borderPiece' + i++ ) ) {}
+ }
+ },
+
+
+ /**
+ * Get the VML path definitions for the border segment(s).
+ * @param {number=} mult If specified, all coordinates will be multiplied by this number
+ * @return {Array.<string>}
+ */
+ getBorderSegments: function( mult ) {
+ var el = this.targetElement,
+ bounds, elW, elH,
+ borderInfo = this.styleInfos.borderInfo,
+ segments = [],
+ floor, ceil, wT, wR, wB, wL,
+ round = Math.round,
+ borderProps, radiusInfo, radii, widths, styles, colors;
+
+ if( borderInfo.isActive() ) {
+ borderProps = borderInfo.getProps();
+
+ widths = borderProps.widths;
+ styles = borderProps.styles;
+ colors = borderProps.colors;
+
+ if( borderProps.widthsSame && borderProps.stylesSame && borderProps.colorsSame ) {
+ if( colors['t'].alpha() > 0 ) {
+ // shortcut for identical border on all sides - only need 1 stroked shape
+ wT = widths['t'].pixels( el ); //thickness
+ wR = wT / 2; //shrink
+ segments.push( {
+ path: this.getBoxPath( { t: wR, r: wR, b: wR, l: wR }, mult ),
+ stroke: styles['t'],
+ color: colors['t'],
+ weight: wT
+ } );
+ }
+ }
+ else {
+ mult = mult || 1;
+ bounds = this.boundsInfo.getBounds();
+ elW = bounds.w;
+ elH = bounds.h;
+
+ wT = round( widths['t'].pixels( el ) );
+ wR = round( widths['r'].pixels( el ) );
+ wB = round( widths['b'].pixels( el ) );
+ wL = round( widths['l'].pixels( el ) );
+ var pxWidths = {
+ 't': wT,
+ 'r': wR,
+ 'b': wB,
+ 'l': wL
+ };
+
+ radiusInfo = this.styleInfos.borderRadiusInfo;
+ if( radiusInfo.isActive() ) {
+ radii = this.getRadiiPixels( radiusInfo.getProps() );
+ }
+
+ floor = Math.floor;
+ ceil = Math.ceil;
+
+ function radius( xy, corner ) {
+ return radii ? radii[ xy ][ corner ] : 0;
+ }
+
+ function curve( corner, shrinkX, shrinkY, startAngle, ccw, doMove ) {
+ var rx = radius( 'x', corner),
+ ry = radius( 'y', corner),
+ deg = 65535,
+ isRight = corner.charAt( 1 ) === 'r',
+ isBottom = corner.charAt( 0 ) === 'b';
+ return ( rx > 0 && ry > 0 ) ?
+ ( doMove ? 'al' : 'ae' ) +
+ ( isRight ? ceil( elW - rx ) : floor( rx ) ) * mult + ',' + // center x
+ ( isBottom ? ceil( elH - ry ) : floor( ry ) ) * mult + ',' + // center y
+ ( floor( rx ) - shrinkX ) * mult + ',' + // width
+ ( floor( ry ) - shrinkY ) * mult + ',' + // height
+ ( startAngle * deg ) + ',' + // start angle
+ ( 45 * deg * ( ccw ? 1 : -1 ) // angle change
+ ) : (
+ ( doMove ? 'm' : 'l' ) +
+ ( isRight ? elW - shrinkX : shrinkX ) * mult + ',' +
+ ( isBottom ? elH - shrinkY : shrinkY ) * mult
+ );
+ }
+
+ function line( side, shrink, ccw, doMove ) {
+ var
+ start = (
+ side === 't' ?
+ floor( radius( 'x', 'tl') ) * mult + ',' + ceil( shrink ) * mult :
+ side === 'r' ?
+ ceil( elW - shrink ) * mult + ',' + floor( radius( 'y', 'tr') ) * mult :
+ side === 'b' ?
+ ceil( elW - radius( 'x', 'br') ) * mult + ',' + floor( elH - shrink ) * mult :
+ // side === 'l' ?
+ floor( shrink ) * mult + ',' + ceil( elH - radius( 'y', 'bl') ) * mult
+ ),
+ end = (
+ side === 't' ?
+ ceil( elW - radius( 'x', 'tr') ) * mult + ',' + ceil( shrink ) * mult :
+ side === 'r' ?
+ ceil( elW - shrink ) * mult + ',' + ceil( elH - radius( 'y', 'br') ) * mult :
+ side === 'b' ?
+ floor( radius( 'x', 'bl') ) * mult + ',' + floor( elH - shrink ) * mult :
+ // side === 'l' ?
+ floor( shrink ) * mult + ',' + floor( radius( 'y', 'tl') ) * mult
+ );
+ return ccw ? ( doMove ? 'm' + end : '' ) + 'l' + start :
+ ( doMove ? 'm' + start : '' ) + 'l' + end;
+ }
+
+
+ function addSide( side, sideBefore, sideAfter, cornerBefore, cornerAfter, baseAngle ) {
+ var vert = side === 'l' || side === 'r',
+ sideW = pxWidths[ side ],
+ beforeX, beforeY, afterX, afterY;
+
+ if( sideW > 0 && styles[ side ] !== 'none' && colors[ side ].alpha() > 0 ) {
+ beforeX = pxWidths[ vert ? side : sideBefore ];
+ beforeY = pxWidths[ vert ? sideBefore : side ];
+ afterX = pxWidths[ vert ? side : sideAfter ];
+ afterY = pxWidths[ vert ? sideAfter : side ];
+
+ if( styles[ side ] === 'dashed' || styles[ side ] === 'dotted' ) {
+ segments.push( {
+ path: curve( cornerBefore, beforeX, beforeY, baseAngle + 45, 0, 1 ) +
+ curve( cornerBefore, 0, 0, baseAngle, 1, 0 ),
+ fill: colors[ side ]
+ } );
+ segments.push( {
+ path: line( side, sideW / 2, 0, 1 ),
+ stroke: styles[ side ],
+ weight: sideW,
+ color: colors[ side ]
+ } );
+ segments.push( {
+ path: curve( cornerAfter, afterX, afterY, baseAngle, 0, 1 ) +
+ curve( cornerAfter, 0, 0, baseAngle - 45, 1, 0 ),
+ fill: colors[ side ]
+ } );
+ }
+ else {
+ segments.push( {
+ path: curve( cornerBefore, beforeX, beforeY, baseAngle + 45, 0, 1 ) +
+ line( side, sideW, 0, 0 ) +
+ curve( cornerAfter, afterX, afterY, baseAngle, 0, 0 ) +
+
+ ( styles[ side ] === 'double' && sideW > 2 ?
+ curve( cornerAfter, afterX - floor( afterX / 3 ), afterY - floor( afterY / 3 ), baseAngle - 45, 1, 0 ) +
+ line( side, ceil( sideW / 3 * 2 ), 1, 0 ) +
+ curve( cornerBefore, beforeX - floor( beforeX / 3 ), beforeY - floor( beforeY / 3 ), baseAngle, 1, 0 ) +
+ 'x ' +
+ curve( cornerBefore, floor( beforeX / 3 ), floor( beforeY / 3 ), baseAngle + 45, 0, 1 ) +
+ line( side, floor( sideW / 3 ), 1, 0 ) +
+ curve( cornerAfter, floor( afterX / 3 ), floor( afterY / 3 ), baseAngle, 0, 0 )
+ : '' ) +
+
+ curve( cornerAfter, 0, 0, baseAngle - 45, 1, 0 ) +
+ line( side, 0, 1, 0 ) +
+ curve( cornerBefore, 0, 0, baseAngle, 1, 0 ),
+ fill: colors[ side ]
+ } );
+ }
+ }
+ }
+
+ addSide( 't', 'l', 'r', 'tl', 'tr', 90 );
+ addSide( 'r', 't', 'b', 'tr', 'br', 0 );
+ addSide( 'b', 'r', 'l', 'br', 'bl', -90 );
+ addSide( 'l', 'b', 't', 'bl', 'tl', -180 );
+ }
+ }
+
+ return segments;
+ },
+
+ destroy: function() {
+ var me = this;
+ if (me.finalized || !me.styleInfos.borderImageInfo.isActive()) {
+ me.targetElement.runtimeStyle.borderColor = '';
+ }
+ PIE.RendererBase.destroy.call( me );
+ }
+
+
+} );
+/**
+ * Renderer for border-image
+ * @constructor
+ * @param {Element} el The target element
+ * @param {Object} styleInfos The StyleInfo objects
+ * @param {PIE.RootRenderer} parent
+ */
+PIE.BorderImageRenderer = PIE.RendererBase.newRenderer( {
+
+ boxZIndex: 5,
+ pieceNames: [ 't', 'tr', 'r', 'br', 'b', 'bl', 'l', 'tl', 'c' ],
+
+ needsUpdate: function() {
+ return this.styleInfos.borderImageInfo.changed();
+ },
+
+ isActive: function() {
+ return this.styleInfos.borderImageInfo.isActive();
+ },
+
+ draw: function() {
+ this.getBox(); //make sure pieces are created
+
+ var props = this.styleInfos.borderImageInfo.getProps(),
+ borderProps = this.styleInfos.borderInfo.getProps(),
+ bounds = this.boundsInfo.getBounds(),
+ el = this.targetElement,
+ pieces = this.pieces;
+
+ PIE.Util.withImageSize( props.src, function( imgSize ) {
+ var elW = bounds.w,
+ elH = bounds.h,
+ zero = PIE.getLength( '0' ),
+ widths = props.widths || ( borderProps ? borderProps.widths : { 't': zero, 'r': zero, 'b': zero, 'l': zero } ),
+ widthT = widths['t'].pixels( el ),
+ widthR = widths['r'].pixels( el ),
+ widthB = widths['b'].pixels( el ),
+ widthL = widths['l'].pixels( el ),
+ slices = props.slice,
+ sliceT = slices['t'].pixels( el ),
+ sliceR = slices['r'].pixels( el ),
+ sliceB = slices['b'].pixels( el ),
+ sliceL = slices['l'].pixels( el );
+
+ // Piece positions and sizes
+ function setSizeAndPos( piece, w, h, x, y ) {
+ var s = pieces[piece].style,
+ max = Math.max;
+ s.width = max(w, 0);
+ s.height = max(h, 0);
+ s.left = x;
+ s.top = y;
+ }
+ setSizeAndPos( 'tl', widthL, widthT, 0, 0 );
+ setSizeAndPos( 't', elW - widthL - widthR, widthT, widthL, 0 );
+ setSizeAndPos( 'tr', widthR, widthT, elW - widthR, 0 );
+ setSizeAndPos( 'r', widthR, elH - widthT - widthB, elW - widthR, widthT );
+ setSizeAndPos( 'br', widthR, widthB, elW - widthR, elH - widthB );
+ setSizeAndPos( 'b', elW - widthL - widthR, widthB, widthL, elH - widthB );
+ setSizeAndPos( 'bl', widthL, widthB, 0, elH - widthB );
+ setSizeAndPos( 'l', widthL, elH - widthT - widthB, 0, widthT );
+ setSizeAndPos( 'c', elW - widthL - widthR, elH - widthT - widthB, widthL, widthT );
+
+
+ // image croppings
+ function setCrops( sides, crop, val ) {
+ for( var i=0, len=sides.length; i < len; i++ ) {
+ pieces[ sides[i] ]['imagedata'][ crop ] = val;
+ }
+ }
+
+ // corners
+ setCrops( [ 'tl', 't', 'tr' ], 'cropBottom', ( imgSize.h - sliceT ) / imgSize.h );
+ setCrops( [ 'tl', 'l', 'bl' ], 'cropRight', ( imgSize.w - sliceL ) / imgSize.w );
+ setCrops( [ 'bl', 'b', 'br' ], 'cropTop', ( imgSize.h - sliceB ) / imgSize.h );
+ setCrops( [ 'tr', 'r', 'br' ], 'cropLeft', ( imgSize.w - sliceR ) / imgSize.w );
+
+ // edges and center
+ // TODO right now this treats everything like 'stretch', need to support other schemes
+ //if( props.repeat.v === 'stretch' ) {
+ setCrops( [ 'l', 'r', 'c' ], 'cropTop', sliceT / imgSize.h );
+ setCrops( [ 'l', 'r', 'c' ], 'cropBottom', sliceB / imgSize.h );
+ //}
+ //if( props.repeat.h === 'stretch' ) {
+ setCrops( [ 't', 'b', 'c' ], 'cropLeft', sliceL / imgSize.w );
+ setCrops( [ 't', 'b', 'c' ], 'cropRight', sliceR / imgSize.w );
+ //}
+
+ // center fill
+ pieces['c'].style.display = props.fill ? '' : 'none';
+ }, this );
+ },
+
+ getBox: function() {
+ var box = this.parent.getLayer( this.boxZIndex ),
+ s, piece, i,
+ pieceNames = this.pieceNames,
+ len = pieceNames.length;
+
+ if( !box ) {
+ box = doc.createElement( 'border-image' );
+ s = box.style;
+ s.position = 'absolute';
+
+ this.pieces = {};
+
+ for( i = 0; i < len; i++ ) {
+ piece = this.pieces[ pieceNames[i] ] = PIE.Util.createVmlElement( 'rect' );
+ piece.appendChild( PIE.Util.createVmlElement( 'imagedata' ) );
+ s = piece.style;
+ s['behavior'] = 'url(#default#VML)';
+ s.position = "absolute";
+ s.top = s.left = 0;
+ piece['imagedata'].src = this.styleInfos.borderImageInfo.getProps().src;
+ piece.stroked = false;
+ piece.filled = false;
+ box.appendChild( piece );
+ }
+
+ this.parent.addLayer( this.boxZIndex, box );
+ }
+
+ return box;
+ },
+
+ prepareUpdate: function() {
+ if (this.isActive()) {
+ var me = this,
+ el = me.targetElement,
+ rs = el.runtimeStyle,
+ widths = me.styleInfos.borderImageInfo.getProps().widths;
+
+ // Force border-style to solid so it doesn't collapse
+ rs.borderStyle = 'solid';
+
+ // If widths specified in border-image shorthand, override border-width
+ // NOTE px units needed here as this gets used by the IE9 renderer too
+ if ( widths ) {
+ rs.borderTopWidth = widths['t'].pixels( el ) + 'px';
+ rs.borderRightWidth = widths['r'].pixels( el ) + 'px';
+ rs.borderBottomWidth = widths['b'].pixels( el ) + 'px';
+ rs.borderLeftWidth = widths['l'].pixels( el ) + 'px';
+ }
+
+ // Make the border transparent
+ me.hideBorder();
+ }
+ },
+
+ destroy: function() {
+ var me = this,
+ rs = me.targetElement.runtimeStyle;
+ rs.borderStyle = '';
+ if (me.finalized || !me.styleInfos.borderInfo.isActive()) {
+ rs.borderColor = rs.borderWidth = '';
+ }
+ PIE.RendererBase.destroy.call( this );
+ }
+
+} );
+/**
+ * Renderer for outset box-shadows
+ * @constructor
+ * @param {Element} el The target element
+ * @param {Object} styleInfos The StyleInfo objects
+ * @param {PIE.RootRenderer} parent
+ */
+PIE.BoxShadowOutsetRenderer = PIE.RendererBase.newRenderer( {
+
+ boxZIndex: 1,
+ boxName: 'outset-box-shadow',
+
+ needsUpdate: function() {
+ var si = this.styleInfos;
+ return si.boxShadowInfo.changed() || si.borderRadiusInfo.changed();
+ },
+
+ isActive: function() {
+ var boxShadowInfo = this.styleInfos.boxShadowInfo;
+ return boxShadowInfo.isActive() && boxShadowInfo.getProps().outset[0];
+ },
+
+ draw: function() {
+ var me = this,
+ el = this.targetElement,
+ box = this.getBox(),
+ styleInfos = this.styleInfos,
+ shadowInfos = styleInfos.boxShadowInfo.getProps().outset,
+ radii = styleInfos.borderRadiusInfo.getProps(),
+ len = shadowInfos.length,
+ i = len, j,
+ bounds = this.boundsInfo.getBounds(),
+ w = bounds.w,
+ h = bounds.h,
+ clipAdjust = PIE.ieVersion === 8 ? 1 : 0, //workaround for IE8 bug where VML leaks out top/left of clip region by 1px
+ corners = [ 'tl', 'tr', 'br', 'bl' ], corner,
+ shadowInfo, shape, fill, ss, xOff, yOff, spread, blur, shrink, color, alpha, path,
+ totalW, totalH, focusX, focusY, isBottom, isRight;
+
+
+ function getShadowShape( index, corner, xOff, yOff, color, blur, path ) {
+ var shape = me.getShape( 'shadow' + index + corner, 'fill', box, len - index ),
+ fill = shape.fill;
+
+ // Position and size
+ shape['coordsize'] = w * 2 + ',' + h * 2;
+ shape['coordorigin'] = '1,1';
+
+ // Color and opacity
+ shape['stroked'] = false;
+ shape['filled'] = true;
+ fill.color = color.colorValue( el );
+ if( blur ) {
+ fill['type'] = 'gradienttitle'; //makes the VML gradient follow the shape's outline - hooray for undocumented features?!?!
+ fill['color2'] = fill.color;
+ fill['opacity'] = 0;
+ }
+
+ // Path
+ shape.path = path;
+
+ // This needs to go last for some reason, to prevent rendering at incorrect size
+ ss = shape.style;
+ ss.left = xOff;
+ ss.top = yOff;
+ ss.width = w;
+ ss.height = h;
+
+ return shape;
+ }
+
+
+ while( i-- ) {
+ shadowInfo = shadowInfos[ i ];
+ xOff = shadowInfo.xOffset.pixels( el );
+ yOff = shadowInfo.yOffset.pixels( el );
+ spread = shadowInfo.spread.pixels( el );
+ blur = shadowInfo.blur.pixels( el );
+ color = shadowInfo.color;
+ // Shape path
+ shrink = -spread - blur;
+ if( !radii && blur ) {
+ // If blurring, use a non-null border radius info object so that getBoxPath will
+ // round the corners of the expanded shadow shape rather than squaring them off.
+ radii = PIE.BorderRadiusStyleInfo.ALL_ZERO;
+ }
+ path = this.getBoxPath( { t: shrink, r: shrink, b: shrink, l: shrink }, 2, radii );
+
+ if( blur ) {
+ totalW = ( spread + blur ) * 2 + w;
+ totalH = ( spread + blur ) * 2 + h;
+ focusX = totalW ? blur * 2 / totalW : 0;
+ focusY = totalH ? blur * 2 / totalH : 0;
+ if( blur - spread > w / 2 || blur - spread > h / 2 ) {
+ // If the blur is larger than half the element's narrowest dimension, we cannot do
+ // this with a single shape gradient, because its focussize would have to be less than
+ // zero which results in ugly artifacts. Instead we create four shapes, each with its
+ // gradient focus past center, and then clip them so each only shows the quadrant
+ // opposite the focus.
+ for( j = 4; j--; ) {
+ corner = corners[j];
+ isBottom = corner.charAt( 0 ) === 'b';
+ isRight = corner.charAt( 1 ) === 'r';
+ shape = getShadowShape( i, corner, xOff, yOff, color, blur, path );
+ fill = shape.fill;
+ fill['focusposition'] = ( isRight ? 1 - focusX : focusX ) + ',' +
+ ( isBottom ? 1 - focusY : focusY );
+ fill['focussize'] = '0,0';
+
+ // Clip to show only the appropriate quadrant. Add 1px to the top/left clip values
+ // in IE8 to prevent a bug where IE8 displays one pixel outside the clip region.
+ shape.style.clip = 'rect(' + ( ( isBottom ? totalH / 2 : 0 ) + clipAdjust ) + 'px,' +
+ ( isRight ? totalW : totalW / 2 ) + 'px,' +
+ ( isBottom ? totalH : totalH / 2 ) + 'px,' +
+ ( ( isRight ? totalW / 2 : 0 ) + clipAdjust ) + 'px)';
+ }
+ } else {
+ // TODO delete old quadrant shapes if resizing expands past the barrier
+ shape = getShadowShape( i, '', xOff, yOff, color, blur, path );
+ fill = shape.fill;
+ fill['focusposition'] = focusX + ',' + focusY;
+ fill['focussize'] = ( 1 - focusX * 2 ) + ',' + ( 1 - focusY * 2 );
+ }
+ } else {
+ shape = getShadowShape( i, '', xOff, yOff, color, blur, path );
+ alpha = color.alpha();
+ if( alpha < 1 ) {
+ // shape.style.filter = 'alpha(opacity=' + ( alpha * 100 ) + ')';
+ // ss.filter = 'progid:DXImageTransform.Microsoft.BasicImage(opacity=' + ( alpha ) + ')';
+ shape.fill.opacity = alpha;
+ }
+ }
+ }
+ }
+
+} );
+/**
+ * Renderer for re-rendering img elements using VML. Kicks in if the img has
+ * a border-radius applied, or if the -pie-png-fix flag is set.
+ * @constructor
+ * @param {Element} el The target element
+ * @param {Object} styleInfos The StyleInfo objects
+ * @param {PIE.RootRenderer} parent
+ */
+PIE.ImgRenderer = PIE.RendererBase.newRenderer( {
+
+ boxZIndex: 6,
+ boxName: 'imgEl',
+
+ needsUpdate: function() {
+ var si = this.styleInfos;
+ return this.targetElement.src !== this._lastSrc || si.borderRadiusInfo.changed();
+ },
+
+ isActive: function() {
+ var si = this.styleInfos;
+ return si.borderRadiusInfo.isActive() || si.backgroundInfo.isPngFix();
+ },
+
+ draw: function() {
+ this._lastSrc = src;
+ this.hideActualImg();
+
+ var shape = this.getShape( 'img', 'fill', this.getBox() ),
+ fill = shape.fill,
+ bounds = this.boundsInfo.getBounds(),
+ w = bounds.w,
+ h = bounds.h,
+ borderProps = this.styleInfos.borderInfo.getProps(),
+ borderWidths = borderProps && borderProps.widths,
+ el = this.targetElement,
+ src = el.src,
+ round = Math.round,
+ cs = el.currentStyle,
+ getLength = PIE.getLength,
+ s, zero;
+
+ // In IE6, the BorderRenderer will have hidden the border by moving the border-width to
+ // the padding; therefore we want to pretend the borders have no width so they aren't doubled
+ // when adding in the current padding value below.
+ if( !borderWidths || PIE.ieVersion < 7 ) {
+ zero = PIE.getLength( '0' );
+ borderWidths = { 't': zero, 'r': zero, 'b': zero, 'l': zero };
+ }
+
+ shape.stroked = false;
+ fill.type = 'frame';
+ fill.src = src;
+ fill.position = (w ? 0.5 / w : 0) + ',' + (h ? 0.5 / h : 0);
+ shape.coordsize = w * 2 + ',' + h * 2;
+ shape.coordorigin = '1,1';
+ shape.path = this.getBoxPath( {
+ t: round( borderWidths['t'].pixels( el ) + getLength( cs.paddingTop ).pixels( el ) ),
+ r: round( borderWidths['r'].pixels( el ) + getLength( cs.paddingRight ).pixels( el ) ),
+ b: round( borderWidths['b'].pixels( el ) + getLength( cs.paddingBottom ).pixels( el ) ),
+ l: round( borderWidths['l'].pixels( el ) + getLength( cs.paddingLeft ).pixels( el ) )
+ }, 2 );
+ s = shape.style;
+ s.width = w;
+ s.height = h;
+ },
+
+ hideActualImg: function() {
+ this.targetElement.runtimeStyle.filter = 'alpha(opacity=0)';
+ },
+
+ destroy: function() {
+ PIE.RendererBase.destroy.call( this );
+ this.targetElement.runtimeStyle.filter = '';
+ }
+
+} );
+/**
+ * Root renderer for IE9; manages the rendering layers in the element's background
+ * @param {Element} el The target element
+ * @param {Object} styleInfos The StyleInfo objects
+ */
+PIE.IE9RootRenderer = PIE.RendererBase.newRenderer( {
+
+ updatePos: PIE.emptyFn,
+ updateSize: PIE.emptyFn,
+ updateVisibility: PIE.emptyFn,
+ updateProps: PIE.emptyFn,
+
+ outerCommasRE: /^,+|,+$/g,
+ innerCommasRE: /,+/g,
+
+ setBackgroundLayer: function(zIndex, bg) {
+ var me = this,
+ bgLayers = me._bgLayers || ( me._bgLayers = [] ),
+ undef;
+ bgLayers[zIndex] = bg || undef;
+ },
+
+ finishUpdate: function() {
+ var me = this,
+ bgLayers = me._bgLayers,
+ bg;
+ if( bgLayers && ( bg = bgLayers.join( ',' ).replace( me.outerCommasRE, '' ).replace( me.innerCommasRE, ',' ) ) !== me._lastBg ) {
+ me._lastBg = me.targetElement.runtimeStyle.background = bg;
+ }
+ },
+
+ destroy: function() {
+ this.targetElement.runtimeStyle.background = '';
+ delete this._bgLayers;
+ }
+
+} );
+/**
+ * Renderer for element backgrounds, specific for IE9. Only handles translating CSS3 gradients
+ * to an equivalent SVG data URI.
+ * @constructor
+ * @param {Element} el The target element
+ * @param {Object} styleInfos The StyleInfo objects
+ */
+PIE.IE9BackgroundRenderer = PIE.RendererBase.newRenderer( {
+
+ bgLayerZIndex: 1,
+
+ needsUpdate: function() {
+ var si = this.styleInfos;
+ return si.backgroundInfo.changed();
+ },
+
+ isActive: function() {
+ var si = this.styleInfos;
+ return si.backgroundInfo.isActive() || si.borderImageInfo.isActive();
+ },
+
+ draw: function() {
+ var me = this,
+ props = me.styleInfos.backgroundInfo.getProps(),
+ bg, images, i = 0, img, bgAreaSize, bgSize;
+
+ if ( props ) {
+ bg = [];
+
+ images = props.bgImages;
+ if ( images ) {
+ while( img = images[ i++ ] ) {
+ if (img.imgType === 'linear-gradient' ) {
+ bgAreaSize = me.getBgAreaSize( img.bgOrigin );
+ bgSize = ( img.bgSize || PIE.BgSize.DEFAULT ).pixels(
+ me.targetElement, bgAreaSize.w, bgAreaSize.h, bgAreaSize.w, bgAreaSize.h
+ ),
+ bg.push(
+ 'url(data:image/svg+xml,' + escape( me.getGradientSvg( img, bgSize.w, bgSize.h ) ) + ') ' +
+ me.bgPositionToString( img.bgPosition ) + ' / ' + bgSize.w + 'px ' + bgSize.h + 'px ' +
+ ( img.bgAttachment || '' ) + ' ' + ( img.bgOrigin || '' ) + ' ' + ( img.bgClip || '' )
+ );
+ } else {
+ bg.push( img.origString );
+ }
+ }
+ }
+
+ if ( props.color ) {
+ bg.push( props.color.val );
+ }
+
+ me.parent.setBackgroundLayer(me.bgLayerZIndex, bg.join(','));
+ }
+ },
+
+ bgPositionToString: function( bgPosition ) {
+ return bgPosition ? bgPosition.tokens.map(function(token) {
+ return token.tokenValue;
+ }).join(' ') : '0 0';
+ },
+
+ getBgAreaSize: function( bgOrigin ) {
+ var me = this,
+ el = me.targetElement,
+ bounds = me.boundsInfo.getBounds(),
+ elW = bounds.w,
+ elH = bounds.h,
+ w = elW,
+ h = elH,
+ borders, getLength, cs;
+
+ if( bgOrigin !== 'border-box' ) {
+ borders = me.styleInfos.borderInfo.getProps();
+ if( borders && ( borders = borders.widths ) ) {
+ w -= borders[ 'l' ].pixels( el ) + borders[ 'l' ].pixels( el );
+ h -= borders[ 't' ].pixels( el ) + borders[ 'b' ].pixels( el );
+ }
+ }
+
+ if ( bgOrigin === 'content-box' ) {
+ getLength = PIE.getLength;
+ cs = el.currentStyle;
+ w -= getLength( cs.paddingLeft ).pixels( el ) + getLength( cs.paddingRight ).pixels( el );
+ h -= getLength( cs.paddingTop ).pixels( el ) + getLength( cs.paddingBottom ).pixels( el );
+ }
+
+ return { w: w, h: h };
+ },
+
+ getGradientSvg: function( info, bgWidth, bgHeight ) {
+ var el = this.targetElement,
+ stopsInfo = info.stops,
+ stopCount = stopsInfo.length,
+ metrics = PIE.GradientUtil.getGradientMetrics( el, bgWidth, bgHeight, info ),
+ startX = metrics.startX,
+ startY = metrics.startY,
+ endX = metrics.endX,
+ endY = metrics.endY,
+ lineLength = metrics.lineLength,
+ stopPx,
+ i, j, before, after,
+ svg;
+
+ // Find the pixel offsets along the CSS3 gradient-line for each stop.
+ stopPx = [];
+ for( i = 0; i < stopCount; i++ ) {
+ stopPx.push( stopsInfo[i].offset ? stopsInfo[i].offset.pixels( el, lineLength ) :
+ i === 0 ? 0 : i === stopCount - 1 ? lineLength : null );
+ }
+ // Fill in gaps with evenly-spaced offsets
+ for( i = 1; i < stopCount; i++ ) {
+ if( stopPx[ i ] === null ) {
+ before = stopPx[ i - 1 ];
+ j = i;
+ do {
+ after = stopPx[ ++j ];
+ } while( after === null );
+ stopPx[ i ] = before + ( after - before ) / ( j - i + 1 );
+ }
+ }
+
+ svg = [
+ '<svg width="' + bgWidth + '" height="' + bgHeight + '" xmlns="http://www.w3.org/2000/svg">' +
+ '<defs>' +
+ '<linearGradient id="g" gradientUnits="userSpaceOnUse"' +
+ ' x1="' + ( startX / bgWidth * 100 ) + '%" y1="' + ( startY / bgHeight * 100 ) + '%" x2="' + ( endX / bgWidth * 100 ) + '%" y2="' + ( endY / bgHeight * 100 ) + '%">'
+ ];
+
+ // Convert to percentage along the SVG gradient line and add to the stops list
+ for( i = 0; i < stopCount; i++ ) {
+ svg.push(
+ '<stop offset="' + ( stopPx[ i ] / lineLength ) +
+ '" stop-color="' + stopsInfo[i].color.colorValue( el ) +
+ '" stop-opacity="' + stopsInfo[i].color.alpha() + '"/>'
+ );
+ }
+
+ svg.push(
+ '</linearGradient>' +
+ '</defs>' +
+ '<rect width="100%" height="100%" fill="url(#g)"/>' +
+ '</svg>'
+ );
+
+ return svg.join( '' );
+ },
+
+ destroy: function() {
+ this.parent.setBackgroundLayer( this.bgLayerZIndex );
+ }
+
+} );
+/**
+ * Renderer for border-image
+ * @constructor
+ * @param {Element} el The target element
+ * @param {Object} styleInfos The StyleInfo objects
+ * @param {PIE.RootRenderer} parent
+ */
+PIE.IE9BorderImageRenderer = PIE.RendererBase.newRenderer( {
+
+ REPEAT: 'repeat',
+ STRETCH: 'stretch',
+ ROUND: 'round',
+
+ bgLayerZIndex: 0,
+
+ needsUpdate: function() {
+ return this.styleInfos.borderImageInfo.changed();
+ },
+
+ isActive: function() {
+ return this.styleInfos.borderImageInfo.isActive();
+ },
+
+ draw: function() {
+ var me = this,
+ props = me.styleInfos.borderImageInfo.getProps(),
+ borderProps = me.styleInfos.borderInfo.getProps(),
+ bounds = me.boundsInfo.getBounds(),
+ repeat = props.repeat,
+ repeatH = repeat.h,
+ repeatV = repeat.v,
+ el = me.targetElement,
+ isAsync = 0;
+
+ PIE.Util.withImageSize( props.src, function( imgSize ) {
+ var elW = bounds.w,
+ elH = bounds.h,
+ imgW = imgSize.w,
+ imgH = imgSize.h,
+
+ // The image cannot be referenced as a URL directly in the SVG because IE9 throws a strange
+ // security exception (perhaps due to cross-origin policy within data URIs?) Therefore we
+ // work around this by converting the image data into a data URI itself using a transient
+ // canvas. This unfortunately requires the border-image src to be within the same domain,
+ // which isn't a limitation in true border-image, so we need to try and find a better fix.
+ imgSrc = me.imageToDataURI( props.src, imgW, imgH ),
+
+ REPEAT = me.REPEAT,
+ STRETCH = me.STRETCH,
+ ROUND = me.ROUND,
+ ceil = Math.ceil,
+
+ zero = PIE.getLength( '0' ),
+ widths = props.widths || ( borderProps ? borderProps.widths : { 't': zero, 'r': zero, 'b': zero, 'l': zero } ),
+ widthT = widths['t'].pixels( el ),
+ widthR = widths['r'].pixels( el ),
+ widthB = widths['b'].pixels( el ),
+ widthL = widths['l'].pixels( el ),
+ slices = props.slice,
+ sliceT = slices['t'].pixels( el ),
+ sliceR = slices['r'].pixels( el ),
+ sliceB = slices['b'].pixels( el ),
+ sliceL = slices['l'].pixels( el ),
+ centerW = elW - widthL - widthR,
+ middleH = elH - widthT - widthB,
+ imgCenterW = imgW - sliceL - sliceR,
+ imgMiddleH = imgH - sliceT - sliceB,
+
+ // Determine the size of each tile - 'round' is handled below
+ tileSizeT = repeatH === STRETCH ? centerW : imgCenterW * widthT / sliceT,
+ tileSizeR = repeatV === STRETCH ? middleH : imgMiddleH * widthR / sliceR,
+ tileSizeB = repeatH === STRETCH ? centerW : imgCenterW * widthB / sliceB,
+ tileSizeL = repeatV === STRETCH ? middleH : imgMiddleH * widthL / sliceL,
+
+ svg,
+ patterns = [],
+ rects = [],
+ i = 0;
+
+ // For 'round', subtract from each tile's size enough so that they fill the space a whole number of times
+ if (repeatH === ROUND) {
+ tileSizeT -= (tileSizeT - (centerW % tileSizeT || tileSizeT)) / ceil(centerW / tileSizeT);
+ tileSizeB -= (tileSizeB - (centerW % tileSizeB || tileSizeB)) / ceil(centerW / tileSizeB);
+ }
+ if (repeatV === ROUND) {
+ tileSizeR -= (tileSizeR - (middleH % tileSizeR || tileSizeR)) / ceil(middleH / tileSizeR);
+ tileSizeL -= (tileSizeL - (middleH % tileSizeL || tileSizeL)) / ceil(middleH / tileSizeL);
+ }
+
+
+ // Build the SVG for the border-image rendering. Add each piece as a pattern, which is then stretched
+ // or repeated as the fill of a rect of appropriate size.
+ svg = [
+ '<svg width="' + elW + '" height="' + elH + '" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">'
+ ];
+
+ function addImage( x, y, w, h, cropX, cropY, cropW, cropH, tileW, tileH ) {
+ patterns.push(
+ '<pattern patternUnits="userSpaceOnUse" id="pattern' + i + '" ' +
+ 'x="' + (repeatH === REPEAT ? x + w / 2 - tileW / 2 : x) + '" ' +
+ 'y="' + (repeatV === REPEAT ? y + h / 2 - tileH / 2 : y) + '" ' +
+ 'width="' + tileW + '" height="' + tileH + '">' +
+ '<svg width="' + tileW + '" height="' + tileH + '" viewBox="' + cropX + ' ' + cropY + ' ' + cropW + ' ' + cropH + '" preserveAspectRatio="none">' +
+ '<image xlink:href="' + imgSrc + '" x="0" y="0" width="' + imgW + '" height="' + imgH + '" />' +
+ '</svg>' +
+ '</pattern>'
+ );
+ rects.push(
+ '<rect x="' + x + '" y="' + y + '" width="' + w + '" height="' + h + '" fill="url(#pattern' + i + ')" />'
+ );
+ i++;
+ }
+ addImage( 0, 0, widthL, widthT, 0, 0, sliceL, sliceT, widthL, widthT ); // top left
+ addImage( widthL, 0, centerW, widthT, sliceL, 0, imgCenterW, sliceT, tileSizeT, widthT ); // top center
+ addImage( elW - widthR, 0, widthR, widthT, imgW - sliceR, 0, sliceR, sliceT, widthR, widthT ); // top right
+ addImage( 0, widthT, widthL, middleH, 0, sliceT, sliceL, imgMiddleH, widthL, tileSizeL ); // middle left
+ if ( props.fill ) { // center fill
+ addImage( widthL, widthT, centerW, middleH, sliceL, sliceT, imgCenterW, imgMiddleH,
+ tileSizeT || tileSizeB || imgCenterW, tileSizeL || tileSizeR || imgMiddleH );
+ }
+ addImage( elW - widthR, widthT, widthR, middleH, imgW - sliceR, sliceT, sliceR, imgMiddleH, widthR, tileSizeR ); // middle right
+ addImage( 0, elH - widthB, widthL, widthB, 0, imgH - sliceB, sliceL, sliceB, widthL, widthB ); // bottom left
+ addImage( widthL, elH - widthB, centerW, widthB, sliceL, imgH - sliceB, imgCenterW, sliceB, tileSizeB, widthB ); // bottom center
+ addImage( elW - widthR, elH - widthB, widthR, widthB, imgW - sliceR, imgH - sliceB, sliceR, sliceB, widthR, widthB ); // bottom right
+
+ svg.push(
+ '<defs>' +
+ patterns.join('\n') +
+ '</defs>' +
+ rects.join('\n') +
+ '</svg>'
+ );
+
+ me.parent.setBackgroundLayer( me.bgLayerZIndex, 'url(data:image/svg+xml,' + escape( svg.join( '' ) ) + ') no-repeat border-box border-box' );
+
+ // If the border-image's src wasn't immediately available, the SVG for its background layer
+ // will have been created asynchronously after the main element's update has finished; we'll
+ // therefore need to force the root renderer to sync to the final background once finished.
+ if( isAsync ) {
+ me.parent.finishUpdate();
+ }
+ }, me );
+
+ isAsync = 1;
+ },
+
+ /**
+ * Convert a given image to a data URI
+ */
+ imageToDataURI: (function() {
+ var uris = {};
+ return function( src, width, height ) {
+ var uri = uris[ src ],
+ image, canvas;
+ if ( !uri ) {
+ image = new Image();
+ canvas = doc.createElement( 'canvas' );
+ image.src = src;
+ canvas.width = width;
+ canvas.height = height;
+ canvas.getContext( '2d' ).drawImage( image, 0, 0 );
+ uri = uris[ src ] = canvas.toDataURL();
+ }
+ return uri;
+ }
+ })(),
+
+ prepareUpdate: PIE.BorderImageRenderer.prototype.prepareUpdate,
+
+ destroy: function() {
+ var me = this,
+ rs = me.targetElement.runtimeStyle;
+ me.parent.setBackgroundLayer( me.bgLayerZIndex );
+ rs.borderColor = rs.borderStyle = rs.borderWidth = '';
+ }
+
+} );
+
+PIE.Element = (function() {
+
+ var wrappers = {},
+ lazyInitCssProp = PIE.CSS_PREFIX + 'lazy-init',
+ pollCssProp = PIE.CSS_PREFIX + 'poll',
+ trackActiveCssProp = PIE.CSS_PREFIX + 'track-active',
+ trackHoverCssProp = PIE.CSS_PREFIX + 'track-hover',
+ hoverClass = PIE.CLASS_PREFIX + 'hover',
+ activeClass = PIE.CLASS_PREFIX + 'active',
+ focusClass = PIE.CLASS_PREFIX + 'focus',
+ firstChildClass = PIE.CLASS_PREFIX + 'first-child',
+ ignorePropertyNames = { 'background':1, 'bgColor':1, 'display': 1 },
+ classNameRegExes = {},
+ dummyArray = [];
+
+
+ function addClass( el, className ) {
+ el.className += ' ' + className;
+ }
+
+ function removeClass( el, className ) {
+ var re = classNameRegExes[ className ] ||
+ ( classNameRegExes[ className ] = new RegExp( '\\b' + className + '\\b', 'g' ) );
+ el.className = el.className.replace( re, '' );
+ }
+
+ function delayAddClass( el, className /*, className2*/ ) {
+ var classes = dummyArray.slice.call( arguments, 1 ),
+ i = classes.length;
+ setTimeout( function() {
+ if( el ) {
+ while( i-- ) {
+ addClass( el, classes[ i ] );
+ }
+ }
+ }, 0 );
+ }
+
+ function delayRemoveClass( el, className /*, className2*/ ) {
+ var classes = dummyArray.slice.call( arguments, 1 ),
+ i = classes.length;
+ setTimeout( function() {
+ if( el ) {
+ while( i-- ) {
+ removeClass( el, classes[ i ] );
+ }
+ }
+ }, 0 );
+ }
+
+
+
+ function Element( el ) {
+ var renderers,
+ rootRenderer,
+ boundsInfo = new PIE.BoundsInfo( el ),
+ styleInfos,
+ styleInfosArr,
+ initializing,
+ initialized,
+ eventsAttached,
+ eventListeners = [],
+ delayed,
+ destroyed,
+ poll;
+
+ /**
+ * Initialize PIE for this element.
+ */
+ function init() {
+ if( !initialized ) {
+ var docEl,
+ bounds,
+ ieDocMode = PIE.ieDocMode,
+ cs = el.currentStyle,
+ lazy = cs.getAttribute( lazyInitCssProp ) === 'true',
+ trackActive = cs.getAttribute( trackActiveCssProp ) !== 'false',
+ trackHover = cs.getAttribute( trackHoverCssProp ) !== 'false',
+ childRenderers;
+
+ // Polling for size/position changes: default to on in IE8, off otherwise, overridable by -pie-poll
+ poll = cs.getAttribute( pollCssProp );
+ poll = ieDocMode > 7 ? poll !== 'false' : poll === 'true';
+
+ // Force layout so move/resize events will fire. Set this as soon as possible to avoid layout changes
+ // after load, but make sure it only gets called the first time through to avoid recursive calls to init().
+ if( !initializing ) {
+ initializing = 1;
+ el.runtimeStyle.zoom = 1;
+ initFirstChildPseudoClass();
+ }
+
+ boundsInfo.lock();
+
+ // If the -pie-lazy-init:true flag is set, check if the element is outside the viewport and if so, delay initialization
+ if( lazy && ( bounds = boundsInfo.getBounds() ) && ( docEl = doc.documentElement || doc.body ) &&
+ ( bounds.y > docEl.clientHeight || bounds.x > docEl.clientWidth || bounds.y + bounds.h < 0 || bounds.x + bounds.w < 0 ) ) {
+ if( !delayed ) {
+ delayed = 1;
+ PIE.OnScroll.observe( init );
+ }
+ } else {
+ initialized = 1;
+ delayed = initializing = 0;
+ PIE.OnScroll.unobserve( init );
+
+ // Create the style infos and renderers
+ if ( ieDocMode === 9 ) {
+ styleInfos = {
+ backgroundInfo: new PIE.BackgroundStyleInfo( el ),
+ borderImageInfo: new PIE.BorderImageStyleInfo( el ),
+ borderInfo: new PIE.BorderStyleInfo( el )
+ };
+ styleInfosArr = [
+ styleInfos.backgroundInfo,
+ styleInfos.borderImageInfo
+ ];
+ rootRenderer = new PIE.IE9RootRenderer( el, boundsInfo, styleInfos );
+ childRenderers = [
+ new PIE.IE9BackgroundRenderer( el, boundsInfo, styleInfos, rootRenderer ),
+ new PIE.IE9BorderImageRenderer( el, boundsInfo, styleInfos, rootRenderer )
+ ];
+ } else {
+
+ styleInfos = {
+ backgroundInfo: new PIE.BackgroundStyleInfo( el ),
+ borderInfo: new PIE.BorderStyleInfo( el ),
+ borderImageInfo: new PIE.BorderImageStyleInfo( el ),
+ borderRadiusInfo: new PIE.BorderRadiusStyleInfo( el ),
+ boxShadowInfo: new PIE.BoxShadowStyleInfo( el ),
+ visibilityInfo: new PIE.VisibilityStyleInfo( el )
+ };
+ styleInfosArr = [
+ styleInfos.backgroundInfo,
+ styleInfos.borderInfo,
+ styleInfos.borderImageInfo,
+ styleInfos.borderRadiusInfo,
+ styleInfos.boxShadowInfo,
+ styleInfos.visibilityInfo
+ ];
+ rootRenderer = new PIE.RootRenderer( el, boundsInfo, styleInfos );
+ childRenderers = [
+ new PIE.BoxShadowOutsetRenderer( el, boundsInfo, styleInfos, rootRenderer ),
+ new PIE.BackgroundRenderer( el, boundsInfo, styleInfos, rootRenderer ),
+ //new PIE.BoxShadowInsetRenderer( el, boundsInfo, styleInfos, rootRenderer ),
+ new PIE.BorderRenderer( el, boundsInfo, styleInfos, rootRenderer ),
+ new PIE.BorderImageRenderer( el, boundsInfo, styleInfos, rootRenderer )
+ ];
+ if( el.tagName === 'IMG' ) {
+ childRenderers.push( new PIE.ImgRenderer( el, boundsInfo, styleInfos, rootRenderer ) );
+ }
+ rootRenderer.childRenderers = childRenderers; // circular reference, can't pass in constructor; TODO is there a cleaner way?
+ }
+ renderers = [ rootRenderer ].concat( childRenderers );
+
+ // Add property change listeners to ancestors if requested
+ initAncestorEventListeners();
+
+ // Add to list of polled elements in IE8
+ if( poll ) {
+ PIE.Heartbeat.observe( update );
+ PIE.Heartbeat.run();
+ }
+
+ // Trigger rendering
+ update( 1 );
+ }
+
+ if( !eventsAttached ) {
+ eventsAttached = 1;
+ if( ieDocMode < 9 ) {
+ addListener( el, 'onmove', handleMoveOrResize );
+ }
+ addListener( el, 'onresize', handleMoveOrResize );
+ addListener( el, 'onpropertychange', propChanged );
+ if( trackHover ) {
+ addListener( el, 'onmouseenter', mouseEntered );
+ }
+ if( trackHover || trackActive ) {
+ addListener( el, 'onmouseleave', mouseLeft );
+ }
+ if( trackActive ) {
+ addListener( el, 'onmousedown', mousePressed );
+ }
+ if( el.tagName in PIE.focusableElements ) {
+ addListener( el, 'onfocus', focused );
+ addListener( el, 'onblur', blurred );
+ }
+ PIE.OnResize.observe( handleMoveOrResize );
+
+ PIE.OnUnload.observe( removeEventListeners );
+ }
+
+ boundsInfo.unlock();
+ }
+ }
+
+
+
+
+ /**
+ * Event handler for onmove and onresize events. Invokes update() only if the element's
+ * bounds have previously been calculated, to prevent multiple runs during page load when
+ * the element has no initial CSS3 properties.
+ */
+ function handleMoveOrResize() {
+ if( boundsInfo && boundsInfo.hasBeenQueried() ) {
+ update();
+ }
+ }
+
+
+ /**
+ * Update position and/or size as necessary. Both move and resize events call
+ * this rather than the updatePos/Size functions because sometimes, particularly
+ * during page load, one will fire but the other won't.
+ */
+ function update( force ) {
+ if( !destroyed ) {
+ if( initialized ) {
+ var i, len = renderers.length;
+
+ lockAll();
+ for( i = 0; i < len; i++ ) {
+ renderers[i].prepareUpdate();
+ }
+ if( force || boundsInfo.positionChanged() ) {
+ /* TODO just using getBoundingClientRect (used internally by BoundsInfo) for detecting
+ position changes may not always be accurate; it's possible that
+ an element will actually move relative to its positioning parent, but its position
+ relative to the viewport will stay the same. Need to come up with a better way to
+ track movement. The most accurate would be the same logic used in RootRenderer.updatePos()
+ but that is a more expensive operation since it does some DOM walking, and we want this
+ check to be as fast as possible. */
+ for( i = 0; i < len; i++ ) {
+ renderers[i].updatePos();
+ }
+ }
+ if( force || boundsInfo.sizeChanged() ) {
+ for( i = 0; i < len; i++ ) {
+ renderers[i].updateSize();
+ }
+ }
+ rootRenderer.finishUpdate();
+ unlockAll();
+ }
+ else if( !initializing ) {
+ init();
+ }
+ }
+ }
+
+ /**
+ * Handle property changes to trigger update when appropriate.
+ */
+ function propChanged() {
+ var i, len = renderers.length,
+ renderer,
+ e = event;
+
+ // Some elements like <table> fire onpropertychange events for old-school background properties
+ // ('background', 'bgColor') when runtimeStyle background properties are changed, which
+ // results in an infinite loop; therefore we filter out those property names. Also, 'display'
+ // is ignored because size calculations don't work correctly immediately when its onpropertychange
+ // event fires, and because it will trigger an onresize event anyway.
+ if( !destroyed && !( e && e.propertyName in ignorePropertyNames ) ) {
+ if( initialized ) {
+ lockAll();
+ for( i = 0; i < len; i++ ) {
+ renderers[i].prepareUpdate();
+ }
+ for( i = 0; i < len; i++ ) {
+ renderer = renderers[i];
+ // Make sure position is synced if the element hasn't already been rendered.
+ // TODO this feels sloppy - look into merging propChanged and update functions
+ if( !renderer.isPositioned ) {
+ renderer.updatePos();
+ }
+ if( renderer.needsUpdate() ) {
+ renderer.updateProps();
+ }
+ }
+ rootRenderer.finishUpdate();
+ unlockAll();
+ }
+ else if( !initializing ) {
+ init();
+ }
+ }
+ }
+
+
+ /**
+ * Handle mouseenter events. Adds a custom class to the element to allow IE6 to add
+ * hover styles to non-link elements, and to trigger a propertychange update.
+ */
+ function mouseEntered() {
+ //must delay this because the mouseenter event fires before the :hover styles are added.
+ delayAddClass( el, hoverClass );
+ }
+
+ /**
+ * Handle mouseleave events
+ */
+ function mouseLeft() {
+ //must delay this because the mouseleave event fires before the :hover styles are removed.
+ delayRemoveClass( el, hoverClass, activeClass );
+ }
+
+ /**
+ * Handle mousedown events. Adds a custom class to the element to allow IE6 to add
+ * active styles to non-link elements, and to trigger a propertychange update.
+ */
+ function mousePressed() {
+ //must delay this because the mousedown event fires before the :active styles are added.
+ delayAddClass( el, activeClass );
+
+ // listen for mouseups on the document; can't just be on the element because the user might
+ // have dragged out of the element while the mouse button was held down
+ PIE.OnMouseup.observe( mouseReleased );
+ }
+
+ /**
+ * Handle mouseup events
+ */
+ function mouseReleased() {
+ //must delay this because the mouseup event fires before the :active styles are removed.
+ delayRemoveClass( el, activeClass );
+
+ PIE.OnMouseup.unobserve( mouseReleased );
+ }
+
+ /**
+ * Handle focus events. Adds a custom class to the element to trigger a propertychange update.
+ */
+ function focused() {
+ //must delay this because the focus event fires before the :focus styles are added.
+ delayAddClass( el, focusClass );
+ }
+
+ /**
+ * Handle blur events
+ */
+ function blurred() {
+ //must delay this because the blur event fires before the :focus styles are removed.
+ delayRemoveClass( el, focusClass );
+ }
+
+
+ /**
+ * Handle property changes on ancestors of the element; see initAncestorEventListeners()
+ * which adds these listeners as requested with the -pie-watch-ancestors CSS property.
+ */
+ function ancestorPropChanged() {
+ var name = event.propertyName;
+ if( name === 'className' || name === 'id' ) {
+ propChanged();
+ }
+ }
+
+ function lockAll() {
+ boundsInfo.lock();
+ for( var i = styleInfosArr.length; i--; ) {
+ styleInfosArr[i].lock();
+ }
+ }
+
+ function unlockAll() {
+ for( var i = styleInfosArr.length; i--; ) {
+ styleInfosArr[i].unlock();
+ }
+ boundsInfo.unlock();
+ }
+
+
+ function addListener( targetEl, type, handler ) {
+ targetEl.attachEvent( type, handler );
+ eventListeners.push( [ targetEl, type, handler ] );
+ }
+
+ /**
+ * Remove all event listeners from the element and any monitored ancestors.
+ */
+ function removeEventListeners() {
+ if (eventsAttached) {
+ var i = eventListeners.length,
+ listener;
+
+ while( i-- ) {
+ listener = eventListeners[ i ];
+ listener[ 0 ].detachEvent( listener[ 1 ], listener[ 2 ] );
+ }
+
+ PIE.OnUnload.unobserve( removeEventListeners );
+ eventsAttached = 0;
+ eventListeners = [];
+ }
+ }
+
+
+ /**
+ * Clean everything up when the behavior is removed from the element, or the element
+ * is manually destroyed.
+ */
+ function destroy() {
+ if( !destroyed ) {
+ var i, len;
+
+ removeEventListeners();
+
+ destroyed = 1;
+
+ // destroy any active renderers
+ if( renderers ) {
+ for( i = 0, len = renderers.length; i < len; i++ ) {
+ renderers[i].finalized = 1;
+ renderers[i].destroy();
+ }
+ }
+
+ // Remove from list of polled elements in IE8
+ if( poll ) {
+ PIE.Heartbeat.unobserve( update );
+ }
+ // Stop onresize listening
+ PIE.OnResize.unobserve( update );
+
+ // Kill references
+ renderers = boundsInfo = styleInfos = styleInfosArr = el = null;
+ }
+ }
+
+
+ /**
+ * If requested via the custom -pie-watch-ancestors CSS property, add onpropertychange and
+ * other event listeners to ancestor(s) of the element so we can pick up style changes
+ * based on CSS rules using descendant selectors.
+ */
+ function initAncestorEventListeners() {
+ var watch = el.currentStyle.getAttribute( PIE.CSS_PREFIX + 'watch-ancestors' ),
+ i, a;
+ if( watch ) {
+ watch = parseInt( watch, 10 );
+ i = 0;
+ a = el.parentNode;
+ while( a && ( watch === 'NaN' || i++ < watch ) ) {
+ addListener( a, 'onpropertychange', ancestorPropChanged );
+ addListener( a, 'onmouseenter', mouseEntered );
+ addListener( a, 'onmouseleave', mouseLeft );
+ addListener( a, 'onmousedown', mousePressed );
+ if( a.tagName in PIE.focusableElements ) {
+ addListener( a, 'onfocus', focused );
+ addListener( a, 'onblur', blurred );
+ }
+ a = a.parentNode;
+ }
+ }
+ }
+
+
+ /**
+ * If the target element is a first child, add a pie_first-child class to it. This allows using
+ * the added class as a workaround for the fact that PIE's rendering element breaks the :first-child
+ * pseudo-class selector.
+ */
+ function initFirstChildPseudoClass() {
+ var tmpEl = el,
+ isFirst = 1;
+ while( tmpEl = tmpEl.previousSibling ) {
+ if( tmpEl.nodeType === 1 ) {
+ isFirst = 0;
+ break;
+ }
+ }
+ if( isFirst ) {
+ addClass( el, firstChildClass );
+ }
+ }
+
+
+ // These methods are all already bound to this instance so there's no need to wrap them
+ // in a closure to maintain the 'this' scope object when calling them.
+ this.init = init;
+ this.update = update;
+ this.destroy = destroy;
+ this.el = el;
+ }
+
+ Element.getInstance = function( el ) {
+ var id = PIE.Util.getUID( el );
+ return wrappers[ id ] || ( wrappers[ id ] = new Element( el ) );
+ };
+
+ Element.destroy = function( el ) {
+ var id = PIE.Util.getUID( el ),
+ wrapper = wrappers[ id ];
+ if( wrapper ) {
+ wrapper.destroy();
+ delete wrappers[ id ];
+ }
+ };
+
+ Element.destroyAll = function() {
+ var els = [], wrapper;
+ if( wrappers ) {
+ for( var w in wrappers ) {
+ if( wrappers.hasOwnProperty( w ) ) {
+ wrapper = wrappers[ w ];
+ els.push( wrapper.el );
+ wrapper.destroy();
+ }
+ }
+ wrappers = {};
+ }
+ return els;
+ };
+
+ return Element;
+})();
+
+/*
+ * This file exposes the public API for invoking PIE.
+ */
+
+
+/**
+ * @property supportsVML
+ * True if the current IE browser environment has a functioning VML engine. Should be true
+ * in most IEs, but in rare cases may be false. If false, PIE will exit immediately when
+ * attached to an element; this property may be used for debugging or by external scripts
+ * to perform some special action when VML support is absent.
+ * @type {boolean}
+ */
+PIE[ 'supportsVML' ] = PIE.supportsVML;
+
+
+/**
+ * Programatically attach PIE to a single element.
+ * @param {Element} el
+ */
+PIE[ 'attach' ] = function( el ) {
+ if (PIE.ieDocMode < 10 && PIE.supportsVML) {
+ PIE.Element.getInstance( el ).init();
+ }
+};
+
+
+/**
+ * Programatically detach PIE from a single element.
+ * @param {Element} el
+ */
+PIE[ 'detach' ] = function( el ) {
+ PIE.Element.destroy( el );
+};
+
+
+} // if( !PIE )
+var el = element;
+
+function init() {
+ if ( doc.media !== 'print' ) { // IE strangely attaches a second copy of the behavior to elements when printing
+ var PIE = window[ 'PIE' ];
+ if( PIE ) {
+ PIE['attach']( el );
+ }
+ }
+}
+
+function cleanup() {
+ if ( doc.media !== 'print' ) {
+ var PIE = window[ 'PIE' ];
+ if (PIE) {
+ PIE['detach']( el );
+ el = 0;
+ }
+ }
+}
+
+if( el.readyState === 'complete' ) {
+ init();
+}
+</script>
+</PUBLIC:COMPONENT>
diff --git a/themes/mantra/js/PIE/PIE_uncompressed.js b/themes/mantra/js/PIE/PIE_uncompressed.js
new file mode 100644
index 00000000..c29cc7da
--- /dev/null
+++ b/themes/mantra/js/PIE/PIE_uncompressed.js
@@ -0,0 +1,4474 @@
+/*
+PIE: CSS3 rendering for IE
+Version 1.0.0
+http://css3pie.com
+Dual-licensed for use under the Apache License Version 2.0 or the General Public License (GPL) Version 2.
+*/
+(function(){
+var doc = document;var PIE = window['PIE'];
+
+if( !PIE ) {
+ PIE = window['PIE'] = {
+ CSS_PREFIX: '-pie-',
+ STYLE_PREFIX: 'Pie',
+ CLASS_PREFIX: 'pie_',
+ tableCellTags: {
+ 'TD': 1,
+ 'TH': 1
+ },
+
+ /**
+ * Lookup table of elements which cannot take custom children.
+ */
+ childlessElements: {
+ 'TABLE':1,
+ 'THEAD':1,
+ 'TBODY':1,
+ 'TFOOT':1,
+ 'TR':1,
+ 'INPUT':1,
+ 'TEXTAREA':1,
+ 'SELECT':1,
+ 'OPTION':1,
+ 'IMG':1,
+ 'HR':1
+ },
+
+ /**
+ * Elements that can receive user focus
+ */
+ focusableElements: {
+ 'A':1,
+ 'INPUT':1,
+ 'TEXTAREA':1,
+ 'SELECT':1,
+ 'BUTTON':1
+ },
+
+ /**
+ * Values of the type attribute for input elements displayed as buttons
+ */
+ inputButtonTypes: {
+ 'submit':1,
+ 'button':1,
+ 'reset':1
+ },
+
+ emptyFn: function() {}
+ };
+
+ // Force the background cache to be used. No reason it shouldn't be.
+ try {
+ doc.execCommand( 'BackgroundImageCache', false, true );
+ } catch(e) {}
+
+ (function() {
+ /*
+ * IE version detection approach by James Padolsey, with modifications -- from
+ * http://james.padolsey.com/javascript/detect-ie-in-js-using-conditional-comments/
+ */
+ var ieVersion = 4,
+ div = doc.createElement('div'),
+ all = div.getElementsByTagName('i'),
+ shape;
+ while (
+ div.innerHTML = '<!--[if gt IE ' + (++ieVersion) + ']><i></i><![endif]-->',
+ all[0]
+ ) {}
+ PIE.ieVersion = ieVersion;
+
+ // Detect IE6
+ if( ieVersion === 6 ) {
+ // IE6 can't access properties with leading dash, but can without it.
+ PIE.CSS_PREFIX = PIE.CSS_PREFIX.replace( /^-/, '' );
+ }
+
+ PIE.ieDocMode = doc.documentMode || PIE.ieVersion;
+
+ // Detect VML support (a small number of IE installs don't have a working VML engine)
+ div.innerHTML = '<v:shape adj="1"/>';
+ shape = div.firstChild;
+ shape.style['behavior'] = 'url(#default#VML)';
+ PIE.supportsVML = (typeof shape['adj'] === "object");
+ }());
+/**
+ * Utility functions
+ */
+(function() {
+ var vmlCreatorDoc,
+ idNum = 0,
+ imageSizes = {};
+
+
+ PIE.Util = {
+
+ /**
+ * To create a VML element, it must be created by a Document which has the VML
+ * namespace set. Unfortunately, if you try to add the namespace programatically
+ * into the main document, you will get an "Unspecified error" when trying to
+ * access document.namespaces before the document is finished loading. To get
+ * around this, we create a DocumentFragment, which in IE land is apparently a
+ * full-fledged Document. It allows adding namespaces immediately, so we add the
+ * namespace there and then have it create the VML element.
+ * @param {string} tag The tag name for the VML element
+ * @return {Element} The new VML element
+ */
+ createVmlElement: function( tag ) {
+ var vmlPrefix = 'css3vml';
+ if( !vmlCreatorDoc ) {
+ vmlCreatorDoc = doc.createDocumentFragment();
+ vmlCreatorDoc.namespaces.add( vmlPrefix, 'urn:schemas-microsoft-com:vml' );
+ }
+ return vmlCreatorDoc.createElement( vmlPrefix + ':' + tag );
+ },
+
+
+ /**
+ * Generate and return a unique ID for a given object. The generated ID is stored
+ * as a property of the object for future reuse.
+ * @param {Object} obj
+ */
+ getUID: function( obj ) {
+ return obj && obj[ '_pieId' ] || ( obj[ '_pieId' ] = '_' + ++idNum );
+ },
+
+
+ /**
+ * Simple utility for merging objects
+ * @param {Object} obj1 The main object into which all others will be merged
+ * @param {...Object} var_args Other objects which will be merged into the first, in order
+ */
+ merge: function( obj1 ) {
+ var i, len, p, objN, args = arguments;
+ for( i = 1, len = args.length; i < len; i++ ) {
+ objN = args[i];
+ for( p in objN ) {
+ if( objN.hasOwnProperty( p ) ) {
+ obj1[ p ] = objN[ p ];
+ }
+ }
+ }
+ return obj1;
+ },
+
+
+ /**
+ * Execute a callback function, passing it the dimensions of a given image once
+ * they are known.
+ * @param {string} src The source URL of the image
+ * @param {function({w:number, h:number})} func The callback function to be called once the image dimensions are known
+ * @param {Object} ctx A context object which will be used as the 'this' value within the executed callback function
+ */
+ withImageSize: function( src, func, ctx ) {
+ var size = imageSizes[ src ], img, queue;
+ if( size ) {
+ // If we have a queue, add to it
+ if( Object.prototype.toString.call( size ) === '[object Array]' ) {
+ size.push( [ func, ctx ] );
+ }
+ // Already have the size cached, call func right away
+ else {
+ func.call( ctx, size );
+ }
+ } else {
+ queue = imageSizes[ src ] = [ [ func, ctx ] ]; //create queue
+ img = new Image();
+ img.onload = function() {
+ size = imageSizes[ src ] = { w: img.width, h: img.height };
+ for( var i = 0, len = queue.length; i < len; i++ ) {
+ queue[ i ][ 0 ].call( queue[ i ][ 1 ], size );
+ }
+ img.onload = null;
+ };
+ img.src = src;
+ }
+ }
+ };
+})();/**
+ * Utility functions for handling gradients
+ */
+PIE.GradientUtil = {
+
+ getGradientMetrics: function( el, width, height, gradientInfo ) {
+ var angle = gradientInfo.angle,
+ startPos = gradientInfo.gradientStart,
+ startX, startY,
+ endX, endY,
+ startCornerX, startCornerY,
+ endCornerX, endCornerY,
+ deltaX, deltaY,
+ p, UNDEF;
+
+ // Find the "start" and "end" corners; these are the corners furthest along the gradient line.
+ // This is used below to find the start/end positions of the CSS3 gradient-line, and also in finding
+ // the total length of the VML rendered gradient-line corner to corner.
+ function findCorners() {
+ startCornerX = ( angle >= 90 && angle < 270 ) ? width : 0;
+ startCornerY = angle < 180 ? height : 0;
+ endCornerX = width - startCornerX;
+ endCornerY = height - startCornerY;
+ }
+
+ // Normalize the angle to a value between [0, 360)
+ function normalizeAngle() {
+ while( angle < 0 ) {
+ angle += 360;
+ }
+ angle = angle % 360;
+ }
+
+ // Find the start and end points of the gradient
+ if( startPos ) {
+ startPos = startPos.coords( el, width, height );
+ startX = startPos.x;
+ startY = startPos.y;
+ }
+ if( angle ) {
+ angle = angle.degrees();
+
+ normalizeAngle();
+ findCorners();
+
+ // If no start position was specified, then choose a corner as the starting point.
+ if( !startPos ) {
+ startX = startCornerX;
+ startY = startCornerY;
+ }
+
+ // Find the end position by extending a perpendicular line from the gradient-line which
+ // intersects the corner opposite from the starting corner.
+ p = PIE.GradientUtil.perpendicularIntersect( startX, startY, angle, endCornerX, endCornerY );
+ endX = p[0];
+ endY = p[1];
+ }
+ else if( startPos ) {
+ // Start position but no angle specified: find the end point by rotating 180deg around the center
+ endX = width - startX;
+ endY = height - startY;
+ }
+ else {
+ // Neither position nor angle specified; create vertical gradient from top to bottom
+ startX = startY = endX = 0;
+ endY = height;
+ }
+ deltaX = endX - startX;
+ deltaY = endY - startY;
+
+ if( angle === UNDEF ) {
+ // Get the angle based on the change in x/y from start to end point. Checks first for horizontal
+ // or vertical angles so they get exact whole numbers rather than what atan2 gives.
+ angle = ( !deltaX ? ( deltaY < 0 ? 90 : 270 ) :
+ ( !deltaY ? ( deltaX < 0 ? 180 : 0 ) :
+ -Math.atan2( deltaY, deltaX ) / Math.PI * 180
+ )
+ );
+ normalizeAngle();
+ findCorners();
+ }
+
+ return {
+ angle: angle,
+ startX: startX,
+ startY: startY,
+ endX: endX,
+ endY: endY,
+ startCornerX: startCornerX,
+ startCornerY: startCornerY,
+ endCornerX: endCornerX,
+ endCornerY: endCornerY,
+ deltaX: deltaX,
+ deltaY: deltaY,
+ lineLength: PIE.GradientUtil.distance( startX, startY, endX, endY )
+ }
+ },
+
+ /**
+ * Find the point along a given line (defined by a starting point and an angle), at which
+ * that line is intersected by a perpendicular line extending through another point.
+ * @param x1 - x coord of the starting point
+ * @param y1 - y coord of the starting point
+ * @param angle - angle of the line extending from the starting point (in degrees)
+ * @param x2 - x coord of point along the perpendicular line
+ * @param y2 - y coord of point along the perpendicular line
+ * @return [ x, y ]
+ */
+ perpendicularIntersect: function( x1, y1, angle, x2, y2 ) {
+ // Handle straight vertical and horizontal angles, for performance and to avoid
+ // divide-by-zero errors.
+ if( angle === 0 || angle === 180 ) {
+ return [ x2, y1 ];
+ }
+ else if( angle === 90 || angle === 270 ) {
+ return [ x1, y2 ];
+ }
+ else {
+ // General approach: determine the Ax+By=C formula for each line (the slope of the second
+ // line is the negative inverse of the first) and then solve for where both formulas have
+ // the same x/y values.
+ var a1 = Math.tan( -angle * Math.PI / 180 ),
+ c1 = a1 * x1 - y1,
+ a2 = -1 / a1,
+ c2 = a2 * x2 - y2,
+ d = a2 - a1,
+ endX = ( c2 - c1 ) / d,
+ endY = ( a1 * c2 - a2 * c1 ) / d;
+ return [ endX, endY ];
+ }
+ },
+
+ /**
+ * Find the distance between two points
+ * @param {Number} p1x
+ * @param {Number} p1y
+ * @param {Number} p2x
+ * @param {Number} p2y
+ * @return {Number} the distance
+ */
+ distance: function( p1x, p1y, p2x, p2y ) {
+ var dx = p2x - p1x,
+ dy = p2y - p1y;
+ return Math.abs(
+ dx === 0 ? dy :
+ dy === 0 ? dx :
+ Math.sqrt( dx * dx + dy * dy )
+ );
+ }
+
+};/**
+ *
+ */
+PIE.Observable = function() {
+ /**
+ * List of registered observer functions
+ */
+ this.observers = [];
+
+ /**
+ * Hash of function ids to their position in the observers list, for fast lookup
+ */
+ this.indexes = {};
+};
+PIE.Observable.prototype = {
+
+ observe: function( fn ) {
+ var id = PIE.Util.getUID( fn ),
+ indexes = this.indexes,
+ observers = this.observers;
+ if( !( id in indexes ) ) {
+ indexes[ id ] = observers.length;
+ observers.push( fn );
+ }
+ },
+
+ unobserve: function( fn ) {
+ var id = PIE.Util.getUID( fn ),
+ indexes = this.indexes;
+ if( id && id in indexes ) {
+ delete this.observers[ indexes[ id ] ];
+ delete indexes[ id ];
+ }
+ },
+
+ fire: function() {
+ var o = this.observers,
+ i = o.length;
+ while( i-- ) {
+ o[ i ] && o[ i ]();
+ }
+ }
+
+};/*
+ * Simple heartbeat timer - this is a brute-force workaround for syncing issues caused by IE not
+ * always firing the onmove and onresize events when elements are moved or resized. We check a few
+ * times every second to make sure the elements have the correct position and size. See Element.js
+ * which adds heartbeat listeners based on the custom -pie-poll flag, which defaults to true in IE8-9
+ * and false elsewhere.
+ */
+
+PIE.Heartbeat = new PIE.Observable();
+PIE.Heartbeat.run = function() {
+ var me = this,
+ interval;
+ if( !me.running ) {
+ interval = doc.documentElement.currentStyle.getAttribute( PIE.CSS_PREFIX + 'poll-interval' ) || 250;
+ (function beat() {
+ me.fire();
+ setTimeout(beat, interval);
+ })();
+ me.running = 1;
+ }
+};
+/**
+ * Create an observable listener for the onunload event
+ */
+(function() {
+ PIE.OnUnload = new PIE.Observable();
+
+ function handleUnload() {
+ PIE.OnUnload.fire();
+ window.detachEvent( 'onunload', handleUnload );
+ window[ 'PIE' ] = null;
+ }
+
+ window.attachEvent( 'onunload', handleUnload );
+
+ /**
+ * Attach an event which automatically gets detached onunload
+ */
+ PIE.OnUnload.attachManagedEvent = function( target, name, handler ) {
+ target.attachEvent( name, handler );
+ this.observe( function() {
+ target.detachEvent( name, handler );
+ } );
+ };
+})()/**
+ * Create a single observable listener for window resize events.
+ */
+PIE.OnResize = new PIE.Observable();
+
+PIE.OnUnload.attachManagedEvent( window, 'onresize', function() { PIE.OnResize.fire(); } );
+/**
+ * Create a single observable listener for scroll events. Used for lazy loading based
+ * on the viewport, and for fixed position backgrounds.
+ */
+(function() {
+ PIE.OnScroll = new PIE.Observable();
+
+ function scrolled() {
+ PIE.OnScroll.fire();
+ }
+
+ PIE.OnUnload.attachManagedEvent( window, 'onscroll', scrolled );
+
+ PIE.OnResize.observe( scrolled );
+})();
+/**
+ * Listen for printing events, destroy all active PIE instances when printing, and
+ * restore them afterward.
+ */
+(function() {
+
+ var elements;
+
+ function beforePrint() {
+ elements = PIE.Element.destroyAll();
+ }
+
+ function afterPrint() {
+ if( elements ) {
+ for( var i = 0, len = elements.length; i < len; i++ ) {
+ PIE[ 'attach' ]( elements[i] );
+ }
+ elements = 0;
+ }
+ }
+
+ if( PIE.ieDocMode < 9 ) {
+ PIE.OnUnload.attachManagedEvent( window, 'onbeforeprint', beforePrint );
+ PIE.OnUnload.attachManagedEvent( window, 'onafterprint', afterPrint );
+ }
+
+})();/**
+ * Create a single observable listener for document mouseup events.
+ */
+PIE.OnMouseup = new PIE.Observable();
+
+PIE.OnUnload.attachManagedEvent( doc, 'onmouseup', function() { PIE.OnMouseup.fire(); } );
+/**
+ * Wrapper for length and percentage style values. The value is immutable. A singleton instance per unique
+ * value is returned from PIE.getLength() - always use that instead of instantiating directly.
+ * @constructor
+ * @param {string} val The CSS string representing the length. It is assumed that this will already have
+ * been validated as a valid length or percentage syntax.
+ */
+PIE.Length = (function() {
+ var lengthCalcEl = doc.createElement( 'length-calc' ),
+ parent = doc.body || doc.documentElement,
+ s = lengthCalcEl.style,
+ conversions = {},
+ units = [ 'mm', 'cm', 'in', 'pt', 'pc' ],
+ i = units.length,
+ instances = {};
+
+ s.position = 'absolute';
+ s.top = s.left = '-9999px';
+
+ parent.appendChild( lengthCalcEl );
+ while( i-- ) {
+ s.width = '100' + units[i];
+ conversions[ units[i] ] = lengthCalcEl.offsetWidth / 100;
+ }
+ parent.removeChild( lengthCalcEl );
+
+ // All calcs from here on will use 1em
+ s.width = '1em';
+
+
+ function Length( val ) {
+ this.val = val;
+ }
+ Length.prototype = {
+ /**
+ * Regular expression for matching the length unit
+ * @private
+ */
+ unitRE: /(px|em|ex|mm|cm|in|pt|pc|%)$/,
+
+ /**
+ * Get the numeric value of the length
+ * @return {number} The value
+ */
+ getNumber: function() {
+ var num = this.num,
+ UNDEF;
+ if( num === UNDEF ) {
+ num = this.num = parseFloat( this.val );
+ }
+ return num;
+ },
+
+ /**
+ * Get the unit of the length
+ * @return {string} The unit
+ */
+ getUnit: function() {
+ var unit = this.unit,
+ m;
+ if( !unit ) {
+ m = this.val.match( this.unitRE );
+ unit = this.unit = ( m && m[0] ) || 'px';
+ }
+ return unit;
+ },
+
+ /**
+ * Determine whether this is a percentage length value
+ * @return {boolean}
+ */
+ isPercentage: function() {
+ return this.getUnit() === '%';
+ },
+
+ /**
+ * Resolve this length into a number of pixels.
+ * @param {Element} el - the context element, used to resolve font-relative values
+ * @param {(function():number|number)=} pct100 - the number of pixels that equal a 100% percentage. This can be either a number or a
+ * function which will be called to return the number.
+ */
+ pixels: function( el, pct100 ) {
+ var num = this.getNumber(),
+ unit = this.getUnit();
+ switch( unit ) {
+ case "px":
+ return num;
+ case "%":
+ return num * ( typeof pct100 === 'function' ? pct100() : pct100 ) / 100;
+ case "em":
+ return num * this.getEmPixels( el );
+ case "ex":
+ return num * this.getEmPixels( el ) / 2;
+ default:
+ return num * conversions[ unit ];
+ }
+ },
+
+ /**
+ * The em and ex units are relative to the font-size of the current element,
+ * however if the font-size is set using non-pixel units then we get that value
+ * rather than a pixel conversion. To get around this, we keep a floating element
+ * with width:1em which we insert into the target element and then read its offsetWidth.
+ * For elements that won't accept a child we insert into the parent node and perform
+ * additional calculation. If the font-size *is* specified in pixels, then we use that
+ * directly to avoid the expensive DOM manipulation.
+ * @param {Element} el
+ * @return {number}
+ */
+ getEmPixels: function( el ) {
+ var fs = el.currentStyle.fontSize,
+ px, parent, me;
+
+ if( fs.indexOf( 'px' ) > 0 ) {
+ return parseFloat( fs );
+ }
+ else if( el.tagName in PIE.childlessElements ) {
+ me = this;
+ parent = el.parentNode;
+ return PIE.getLength( fs ).pixels( parent, function() {
+ return me.getEmPixels( parent );
+ } );
+ }
+ else {
+ el.appendChild( lengthCalcEl );
+ px = lengthCalcEl.offsetWidth;
+ if( lengthCalcEl.parentNode === el ) { //not sure how this could be false but it sometimes is
+ el.removeChild( lengthCalcEl );
+ }
+ return px;
+ }
+ }
+ };
+
+
+ /**
+ * Retrieve a PIE.Length instance for the given value. A shared singleton instance is returned for each unique value.
+ * @param {string} val The CSS string representing the length. It is assumed that this will already have
+ * been validated as a valid length or percentage syntax.
+ */
+ PIE.getLength = function( val ) {
+ return instances[ val ] || ( instances[ val ] = new Length( val ) );
+ };
+
+ return Length;
+})();
+/**
+ * Wrapper for a CSS3 bg-position value. Takes up to 2 position keywords and 2 lengths/percentages.
+ * @constructor
+ * @param {Array.<PIE.Tokenizer.Token>} tokens The tokens making up the background position value.
+ */
+PIE.BgPosition = (function() {
+
+ var length_fifty = PIE.getLength( '50%' ),
+ vert_idents = { 'top': 1, 'center': 1, 'bottom': 1 },
+ horiz_idents = { 'left': 1, 'center': 1, 'right': 1 };
+
+
+ function BgPosition( tokens ) {
+ this.tokens = tokens;
+ }
+ BgPosition.prototype = {
+ /**
+ * Normalize the values into the form:
+ * [ xOffsetSide, xOffsetLength, yOffsetSide, yOffsetLength ]
+ * where: xOffsetSide is either 'left' or 'right',
+ * yOffsetSide is either 'top' or 'bottom',
+ * and x/yOffsetLength are both PIE.Length objects.
+ * @return {Array}
+ */
+ getValues: function() {
+ if( !this._values ) {
+ var tokens = this.tokens,
+ len = tokens.length,
+ Tokenizer = PIE.Tokenizer,
+ identType = Tokenizer.Type,
+ length_zero = PIE.getLength( '0' ),
+ type_ident = identType.IDENT,
+ type_length = identType.LENGTH,
+ type_percent = identType.PERCENT,
+ type, value,
+ vals = [ 'left', length_zero, 'top', length_zero ];
+
+ // If only one value, the second is assumed to be 'center'
+ if( len === 1 ) {
+ tokens.push( new Tokenizer.Token( type_ident, 'center' ) );
+ len++;
+ }
+
+ // Two values - CSS2
+ if( len === 2 ) {
+ // If both idents, they can appear in either order, so switch them if needed
+ if( type_ident & ( tokens[0].tokenType | tokens[1].tokenType ) &&
+ tokens[0].tokenValue in vert_idents && tokens[1].tokenValue in horiz_idents ) {
+ tokens.push( tokens.shift() );
+ }
+ if( tokens[0].tokenType & type_ident ) {
+ if( tokens[0].tokenValue === 'center' ) {
+ vals[1] = length_fifty;
+ } else {
+ vals[0] = tokens[0].tokenValue;
+ }
+ }
+ else if( tokens[0].isLengthOrPercent() ) {
+ vals[1] = PIE.getLength( tokens[0].tokenValue );
+ }
+ if( tokens[1].tokenType & type_ident ) {
+ if( tokens[1].tokenValue === 'center' ) {
+ vals[3] = length_fifty;
+ } else {
+ vals[2] = tokens[1].tokenValue;
+ }
+ }
+ else if( tokens[1].isLengthOrPercent() ) {
+ vals[3] = PIE.getLength( tokens[1].tokenValue );
+ }
+ }
+
+ // Three or four values - CSS3
+ else {
+ // TODO
+ }
+
+ this._values = vals;
+ }
+ return this._values;
+ },
+
+ /**
+ * Find the coordinates of the background image from the upper-left corner of the background area.
+ * Note that these coordinate values are not rounded.
+ * @param {Element} el
+ * @param {number} width - the width for percentages (background area width minus image width)
+ * @param {number} height - the height for percentages (background area height minus image height)
+ * @return {Object} { x: Number, y: Number }
+ */
+ coords: function( el, width, height ) {
+ var vals = this.getValues(),
+ pxX = vals[1].pixels( el, width ),
+ pxY = vals[3].pixels( el, height );
+
+ return {
+ x: vals[0] === 'right' ? width - pxX : pxX,
+ y: vals[2] === 'bottom' ? height - pxY : pxY
+ };
+ }
+ };
+
+ return BgPosition;
+})();
+/**
+ * Wrapper for a CSS3 background-size value.
+ * @constructor
+ * @param {String|PIE.Length} w The width parameter
+ * @param {String|PIE.Length} h The height parameter, if any
+ */
+PIE.BgSize = (function() {
+
+ var CONTAIN = 'contain',
+ COVER = 'cover',
+ AUTO = 'auto';
+
+
+ function BgSize( w, h ) {
+ this.w = w;
+ this.h = h;
+ }
+ BgSize.prototype = {
+
+ pixels: function( el, areaW, areaH, imgW, imgH ) {
+ var me = this,
+ w = me.w,
+ h = me.h,
+ areaRatio = areaW / areaH,
+ imgRatio = imgW / imgH;
+
+ if ( w === CONTAIN ) {
+ w = imgRatio > areaRatio ? areaW : areaH * imgRatio;
+ h = imgRatio > areaRatio ? areaW / imgRatio : areaH;
+ }
+ else if ( w === COVER ) {
+ w = imgRatio < areaRatio ? areaW : areaH * imgRatio;
+ h = imgRatio < areaRatio ? areaW / imgRatio : areaH;
+ }
+ else if ( w === AUTO ) {
+ h = ( h === AUTO ? imgH : h.pixels( el, areaH ) );
+ w = h * imgRatio;
+ }
+ else {
+ w = w.pixels( el, areaW );
+ h = ( h === AUTO ? w / imgRatio : h.pixels( el, areaH ) );
+ }
+
+ return { w: w, h: h };
+ }
+
+ };
+
+ BgSize.DEFAULT = new BgSize( AUTO, AUTO );
+
+ return BgSize;
+})();
+/**
+ * Wrapper for angle values; handles conversion to degrees from all allowed angle units
+ * @constructor
+ * @param {string} val The raw CSS value for the angle. It is assumed it has been pre-validated.
+ */
+PIE.Angle = (function() {
+ function Angle( val ) {
+ this.val = val;
+ }
+ Angle.prototype = {
+ unitRE: /[a-z]+$/i,
+
+ /**
+ * @return {string} The unit of the angle value
+ */
+ getUnit: function() {
+ return this._unit || ( this._unit = this.val.match( this.unitRE )[0].toLowerCase() );
+ },
+
+ /**
+ * Get the numeric value of the angle in degrees.
+ * @return {number} The degrees value
+ */
+ degrees: function() {
+ var deg = this._deg, u, n;
+ if( deg === undefined ) {
+ u = this.getUnit();
+ n = parseFloat( this.val, 10 );
+ deg = this._deg = ( u === 'deg' ? n : u === 'rad' ? n / Math.PI * 180 : u === 'grad' ? n / 400 * 360 : u === 'turn' ? n * 360 : 0 );
+ }
+ return deg;
+ }
+ };
+
+ return Angle;
+})();/**
+ * Abstraction for colors values. Allows detection of rgba values. A singleton instance per unique
+ * value is returned from PIE.getColor() - always use that instead of instantiating directly.
+ * @constructor
+ * @param {string} val The raw CSS string value for the color
+ */
+PIE.Color = (function() {
+ var instances = {};
+
+ function Color( val ) {
+ this.val = val;
+ }
+
+ /**
+ * Regular expression for matching rgba colors and extracting their components
+ * @type {RegExp}
+ */
+ Color.rgbaRE = /\s*rgba\(\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d+|\d*\.\d+)\s*\)\s*/;
+
+ Color.names = {
+ "aliceblue":"F0F8FF", "antiquewhite":"FAEBD7", "aqua":"0FF",
+ "aquamarine":"7FFFD4", "azure":"F0FFFF", "beige":"F5F5DC",
+ "bisque":"FFE4C4", "black":"000", "blanchedalmond":"FFEBCD",
+ "blue":"00F", "blueviolet":"8A2BE2", "brown":"A52A2A",
+ "burlywood":"DEB887", "cadetblue":"5F9EA0", "chartreuse":"7FFF00",
+ "chocolate":"D2691E", "coral":"FF7F50", "cornflowerblue":"6495ED",
+ "cornsilk":"FFF8DC", "crimson":"DC143C", "cyan":"0FF",
+ "darkblue":"00008B", "darkcyan":"008B8B", "darkgoldenrod":"B8860B",
+ "darkgray":"A9A9A9", "darkgreen":"006400", "darkkhaki":"BDB76B",
+ "darkmagenta":"8B008B", "darkolivegreen":"556B2F", "darkorange":"FF8C00",
+ "darkorchid":"9932CC", "darkred":"8B0000", "darksalmon":"E9967A",
+ "darkseagreen":"8FBC8F", "darkslateblue":"483D8B", "darkslategray":"2F4F4F",
+ "darkturquoise":"00CED1", "darkviolet":"9400D3", "deeppink":"FF1493",
+ "deepskyblue":"00BFFF", "dimgray":"696969", "dodgerblue":"1E90FF",
+ "firebrick":"B22222", "floralwhite":"FFFAF0", "forestgreen":"228B22",
+ "fuchsia":"F0F", "gainsboro":"DCDCDC", "ghostwhite":"F8F8FF",
+ "gold":"FFD700", "goldenrod":"DAA520", "gray":"808080",
+ "green":"008000", "greenyellow":"ADFF2F", "honeydew":"F0FFF0",
+ "hotpink":"FF69B4", "indianred":"CD5C5C", "indigo":"4B0082",
+ "ivory":"FFFFF0", "khaki":"F0E68C", "lavender":"E6E6FA",
+ "lavenderblush":"FFF0F5", "lawngreen":"7CFC00", "lemonchiffon":"FFFACD",
+ "lightblue":"ADD8E6", "lightcoral":"F08080", "lightcyan":"E0FFFF",
+ "lightgoldenrodyellow":"FAFAD2", "lightgreen":"90EE90", "lightgrey":"D3D3D3",
+ "lightpink":"FFB6C1", "lightsalmon":"FFA07A", "lightseagreen":"20B2AA",
+ "lightskyblue":"87CEFA", "lightslategray":"789", "lightsteelblue":"B0C4DE",
+ "lightyellow":"FFFFE0", "lime":"0F0", "limegreen":"32CD32",
+ "linen":"FAF0E6", "magenta":"F0F", "maroon":"800000",
+ "mediumauqamarine":"66CDAA", "mediumblue":"0000CD", "mediumorchid":"BA55D3",
+ "mediumpurple":"9370D8", "mediumseagreen":"3CB371", "mediumslateblue":"7B68EE",
+ "mediumspringgreen":"00FA9A", "mediumturquoise":"48D1CC", "mediumvioletred":"C71585",
+ "midnightblue":"191970", "mintcream":"F5FFFA", "mistyrose":"FFE4E1",
+ "moccasin":"FFE4B5", "navajowhite":"FFDEAD", "navy":"000080",
+ "oldlace":"FDF5E6", "olive":"808000", "olivedrab":"688E23",
+ "orange":"FFA500", "orangered":"FF4500", "orchid":"DA70D6",
+ "palegoldenrod":"EEE8AA", "palegreen":"98FB98", "paleturquoise":"AFEEEE",
+ "palevioletred":"D87093", "papayawhip":"FFEFD5", "peachpuff":"FFDAB9",
+ "peru":"CD853F", "pink":"FFC0CB", "plum":"DDA0DD",
+ "powderblue":"B0E0E6", "purple":"800080", "red":"F00",
+ "rosybrown":"BC8F8F", "royalblue":"4169E1", "saddlebrown":"8B4513",
+ "salmon":"FA8072", "sandybrown":"F4A460", "seagreen":"2E8B57",
+ "seashell":"FFF5EE", "sienna":"A0522D", "silver":"C0C0C0",
+ "skyblue":"87CEEB", "slateblue":"6A5ACD", "slategray":"708090",
+ "snow":"FFFAFA", "springgreen":"00FF7F", "steelblue":"4682B4",
+ "tan":"D2B48C", "teal":"008080", "thistle":"D8BFD8",
+ "tomato":"FF6347", "turquoise":"40E0D0", "violet":"EE82EE",
+ "wheat":"F5DEB3", "white":"FFF", "whitesmoke":"F5F5F5",
+ "yellow":"FF0", "yellowgreen":"9ACD32"
+ };
+
+ Color.prototype = {
+ /**
+ * @private
+ */
+ parse: function() {
+ if( !this._color ) {
+ var me = this,
+ v = me.val,
+ vLower,
+ m = v.match( Color.rgbaRE );
+ if( m ) {
+ me._color = 'rgb(' + m[1] + ',' + m[2] + ',' + m[3] + ')';
+ me._alpha = parseFloat( m[4] );
+ }
+ else {
+ if( ( vLower = v.toLowerCase() ) in Color.names ) {
+ v = '#' + Color.names[vLower];
+ }
+ me._color = v;
+ me._alpha = ( v === 'transparent' ? 0 : 1 );
+ }
+ }
+ },
+
+ /**
+ * Retrieve the value of the color in a format usable by IE natively. This will be the same as
+ * the raw input value, except for rgba values which will be converted to an rgb value.
+ * @param {Element} el The context element, used to get 'currentColor' keyword value.
+ * @return {string} Color value
+ */
+ colorValue: function( el ) {
+ this.parse();
+ return this._color === 'currentColor' ? el.currentStyle.color : this._color;
+ },
+
+ /**
+ * Retrieve the alpha value of the color. Will be 1 for all values except for rgba values
+ * with an alpha component.
+ * @return {number} The alpha value, from 0 to 1.
+ */
+ alpha: function() {
+ this.parse();
+ return this._alpha;
+ }
+ };
+
+
+ /**
+ * Retrieve a PIE.Color instance for the given value. A shared singleton instance is returned for each unique value.
+ * @param {string} val The CSS string representing the color. It is assumed that this will already have
+ * been validated as a valid color syntax.
+ */
+ PIE.getColor = function(val) {
+ return instances[ val ] || ( instances[ val ] = new Color( val ) );
+ };
+
+ return Color;
+})();/**
+ * A tokenizer for CSS value strings.
+ * @constructor
+ * @param {string} css The CSS value string
+ */
+PIE.Tokenizer = (function() {
+ function Tokenizer( css ) {
+ this.css = css;
+ this.ch = 0;
+ this.tokens = [];
+ this.tokenIndex = 0;
+ }
+
+ /**
+ * Enumeration of token type constants.
+ * @enum {number}
+ */
+ var Type = Tokenizer.Type = {
+ ANGLE: 1,
+ CHARACTER: 2,
+ COLOR: 4,
+ DIMEN: 8,
+ FUNCTION: 16,
+ IDENT: 32,
+ LENGTH: 64,
+ NUMBER: 128,
+ OPERATOR: 256,
+ PERCENT: 512,
+ STRING: 1024,
+ URL: 2048
+ };
+
+ /**
+ * A single token
+ * @constructor
+ * @param {number} type The type of the token - see PIE.Tokenizer.Type
+ * @param {string} value The value of the token
+ */
+ Tokenizer.Token = function( type, value ) {
+ this.tokenType = type;
+ this.tokenValue = value;
+ };
+ Tokenizer.Token.prototype = {
+ isLength: function() {
+ return this.tokenType & Type.LENGTH || ( this.tokenType & Type.NUMBER && this.tokenValue === '0' );
+ },
+ isLengthOrPercent: function() {
+ return this.isLength() || this.tokenType & Type.PERCENT;
+ }
+ };
+
+ Tokenizer.prototype = {
+ whitespace: /\s/,
+ number: /^[\+\-]?(\d*\.)?\d+/,
+ url: /^url\(\s*("([^"]*)"|'([^']*)'|([!#$%&*-~]*))\s*\)/i,
+ ident: /^\-?[_a-z][\w-]*/i,
+ string: /^("([^"]*)"|'([^']*)')/,
+ operator: /^[\/,]/,
+ hash: /^#[\w]+/,
+ hashColor: /^#([\da-f]{6}|[\da-f]{3})/i,
+
+ unitTypes: {
+ 'px': Type.LENGTH, 'em': Type.LENGTH, 'ex': Type.LENGTH,
+ 'mm': Type.LENGTH, 'cm': Type.LENGTH, 'in': Type.LENGTH,
+ 'pt': Type.LENGTH, 'pc': Type.LENGTH,
+ 'deg': Type.ANGLE, 'rad': Type.ANGLE, 'grad': Type.ANGLE
+ },
+
+ colorFunctions: {
+ 'rgb': 1, 'rgba': 1, 'hsl': 1, 'hsla': 1
+ },
+
+
+ /**
+ * Advance to and return the next token in the CSS string. If the end of the CSS string has
+ * been reached, null will be returned.
+ * @param {boolean} forget - if true, the token will not be stored for the purposes of backtracking with prev().
+ * @return {PIE.Tokenizer.Token}
+ */
+ next: function( forget ) {
+ var css, ch, firstChar, match, val,
+ me = this;
+
+ function newToken( type, value ) {
+ var tok = new Tokenizer.Token( type, value );
+ if( !forget ) {
+ me.tokens.push( tok );
+ me.tokenIndex++;
+ }
+ return tok;
+ }
+ function failure() {
+ me.tokenIndex++;
+ return null;
+ }
+
+ // In case we previously backed up, return the stored token in the next slot
+ if( this.tokenIndex < this.tokens.length ) {
+ return this.tokens[ this.tokenIndex++ ];
+ }
+
+ // Move past leading whitespace characters
+ while( this.whitespace.test( this.css.charAt( this.ch ) ) ) {
+ this.ch++;
+ }
+ if( this.ch >= this.css.length ) {
+ return failure();
+ }
+
+ ch = this.ch;
+ css = this.css.substring( this.ch );
+ firstChar = css.charAt( 0 );
+ switch( firstChar ) {
+ case '#':
+ if( match = css.match( this.hashColor ) ) {
+ this.ch += match[0].length;
+ return newToken( Type.COLOR, match[0] );
+ }
+ break;
+
+ case '"':
+ case "'":
+ if( match = css.match( this.string ) ) {
+ this.ch += match[0].length;
+ return newToken( Type.STRING, match[2] || match[3] || '' );
+ }
+ break;
+
+ case "/":
+ case ",":
+ this.ch++;
+ return newToken( Type.OPERATOR, firstChar );
+
+ case 'u':
+ if( match = css.match( this.url ) ) {
+ this.ch += match[0].length;
+ return newToken( Type.URL, match[2] || match[3] || match[4] || '' );
+ }
+ }
+
+ // Numbers and values starting with numbers
+ if( match = css.match( this.number ) ) {
+ val = match[0];
+ this.ch += val.length;
+
+ // Check if it is followed by a unit
+ if( css.charAt( val.length ) === '%' ) {
+ this.ch++;
+ return newToken( Type.PERCENT, val + '%' );
+ }
+ if( match = css.substring( val.length ).match( this.ident ) ) {
+ val += match[0];
+ this.ch += match[0].length;
+ return newToken( this.unitTypes[ match[0].toLowerCase() ] || Type.DIMEN, val );
+ }
+
+ // Plain ol' number
+ return newToken( Type.NUMBER, val );
+ }
+
+ // Identifiers
+ if( match = css.match( this.ident ) ) {
+ val = match[0];
+ this.ch += val.length;
+
+ // Named colors
+ if( val.toLowerCase() in PIE.Color.names || val === 'currentColor' || val === 'transparent' ) {
+ return newToken( Type.COLOR, val );
+ }
+
+ // Functions
+ if( css.charAt( val.length ) === '(' ) {
+ this.ch++;
+
+ // Color values in function format: rgb, rgba, hsl, hsla
+ if( val.toLowerCase() in this.colorFunctions ) {
+ function isNum( tok ) {
+ return tok && tok.tokenType & Type.NUMBER;
+ }
+ function isNumOrPct( tok ) {
+ return tok && ( tok.tokenType & ( Type.NUMBER | Type.PERCENT ) );
+ }
+ function isValue( tok, val ) {
+ return tok && tok.tokenValue === val;
+ }
+ function next() {
+ return me.next( 1 );
+ }
+
+ if( ( val.charAt(0) === 'r' ? isNumOrPct( next() ) : isNum( next() ) ) &&
+ isValue( next(), ',' ) &&
+ isNumOrPct( next() ) &&
+ isValue( next(), ',' ) &&
+ isNumOrPct( next() ) &&
+ ( val === 'rgb' || val === 'hsa' || (
+ isValue( next(), ',' ) &&
+ isNum( next() )
+ ) ) &&
+ isValue( next(), ')' ) ) {
+ return newToken( Type.COLOR, this.css.substring( ch, this.ch ) );
+ }
+ return failure();
+ }
+
+ return newToken( Type.FUNCTION, val );
+ }
+
+ // Other identifier
+ return newToken( Type.IDENT, val );
+ }
+
+ // Standalone character
+ this.ch++;
+ return newToken( Type.CHARACTER, firstChar );
+ },
+
+ /**
+ * Determine whether there is another token
+ * @return {boolean}
+ */
+ hasNext: function() {
+ var next = this.next();
+ this.prev();
+ return !!next;
+ },
+
+ /**
+ * Back up and return the previous token
+ * @return {PIE.Tokenizer.Token}
+ */
+ prev: function() {
+ return this.tokens[ this.tokenIndex-- - 2 ];
+ },
+
+ /**
+ * Retrieve all the tokens in the CSS string
+ * @return {Array.<PIE.Tokenizer.Token>}
+ */
+ all: function() {
+ while( this.next() ) {}
+ return this.tokens;
+ },
+
+ /**
+ * Return a list of tokens from the current position until the given function returns
+ * true. The final token will not be included in the list.
+ * @param {function():boolean} func - test function
+ * @param {boolean} require - if true, then if the end of the CSS string is reached
+ * before the test function returns true, null will be returned instead of the
+ * tokens that have been found so far.
+ * @return {Array.<PIE.Tokenizer.Token>}
+ */
+ until: function( func, require ) {
+ var list = [], t, hit;
+ while( t = this.next() ) {
+ if( func( t ) ) {
+ hit = true;
+ this.prev();
+ break;
+ }
+ list.push( t );
+ }
+ return require && !hit ? null : list;
+ }
+ };
+
+ return Tokenizer;
+})();/**
+ * Handles calculating, caching, and detecting changes to size and position of the element.
+ * @constructor
+ * @param {Element} el the target element
+ */
+PIE.BoundsInfo = function( el ) {
+ this.targetElement = el;
+};
+PIE.BoundsInfo.prototype = {
+
+ _locked: 0,
+
+ positionChanged: function() {
+ var last = this._lastBounds,
+ bounds;
+ return !last || ( ( bounds = this.getBounds() ) && ( last.x !== bounds.x || last.y !== bounds.y ) );
+ },
+
+ sizeChanged: function() {
+ var last = this._lastBounds,
+ bounds;
+ return !last || ( ( bounds = this.getBounds() ) && ( last.w !== bounds.w || last.h !== bounds.h ) );
+ },
+
+ getLiveBounds: function() {
+ var el = this.targetElement,
+ rect = el.getBoundingClientRect(),
+ isIE9 = PIE.ieDocMode === 9,
+ isIE7 = PIE.ieVersion === 7,
+ width = rect.right - rect.left;
+ return {
+ x: rect.left,
+ y: rect.top,
+ // In some cases scrolling the page will cause IE9 to report incorrect dimensions
+ // in the rect returned by getBoundingClientRect, so we must query offsetWidth/Height
+ // instead. Also IE7 is inconsistent in using logical vs. device pixels in measurements
+ // so we must calculate the ratio and use it in certain places as a position adjustment.
+ w: isIE9 || isIE7 ? el.offsetWidth : width,
+ h: isIE9 || isIE7 ? el.offsetHeight : rect.bottom - rect.top,
+ logicalZoomRatio: ( isIE7 && width ) ? el.offsetWidth / width : 1
+ };
+ },
+
+ getBounds: function() {
+ return this._locked ?
+ ( this._lockedBounds || ( this._lockedBounds = this.getLiveBounds() ) ) :
+ this.getLiveBounds();
+ },
+
+ hasBeenQueried: function() {
+ return !!this._lastBounds;
+ },
+
+ lock: function() {
+ ++this._locked;
+ },
+
+ unlock: function() {
+ if( !--this._locked ) {
+ if( this._lockedBounds ) this._lastBounds = this._lockedBounds;
+ this._lockedBounds = null;
+ }
+ }
+
+};
+(function() {
+
+function cacheWhenLocked( fn ) {
+ var uid = PIE.Util.getUID( fn );
+ return function() {
+ if( this._locked ) {
+ var cache = this._lockedValues || ( this._lockedValues = {} );
+ return ( uid in cache ) ? cache[ uid ] : ( cache[ uid ] = fn.call( this ) );
+ } else {
+ return fn.call( this );
+ }
+ }
+}
+
+
+PIE.StyleInfoBase = {
+
+ _locked: 0,
+
+ /**
+ * Create a new StyleInfo class, with the standard constructor, and augmented by
+ * the StyleInfoBase's members.
+ * @param proto
+ */
+ newStyleInfo: function( proto ) {
+ function StyleInfo( el ) {
+ this.targetElement = el;
+ this._lastCss = this.getCss();
+ }
+ PIE.Util.merge( StyleInfo.prototype, PIE.StyleInfoBase, proto );
+ StyleInfo._propsCache = {};
+ return StyleInfo;
+ },
+
+ /**
+ * Get an object representation of the target CSS style, caching it for each unique
+ * CSS value string.
+ * @return {Object}
+ */
+ getProps: function() {
+ var css = this.getCss(),
+ cache = this.constructor._propsCache;
+ return css ? ( css in cache ? cache[ css ] : ( cache[ css ] = this.parseCss( css ) ) ) : null;
+ },
+
+ /**
+ * Get the raw CSS value for the target style
+ * @return {string}
+ */
+ getCss: cacheWhenLocked( function() {
+ var el = this.targetElement,
+ ctor = this.constructor,
+ s = el.style,
+ cs = el.currentStyle,
+ cssProp = this.cssProperty,
+ styleProp = this.styleProperty,
+ prefixedCssProp = ctor._prefixedCssProp || ( ctor._prefixedCssProp = PIE.CSS_PREFIX + cssProp ),
+ prefixedStyleProp = ctor._prefixedStyleProp || ( ctor._prefixedStyleProp = PIE.STYLE_PREFIX + styleProp.charAt(0).toUpperCase() + styleProp.substring(1) );
+ return s[ prefixedStyleProp ] || cs.getAttribute( prefixedCssProp ) || s[ styleProp ] || cs.getAttribute( cssProp );
+ } ),
+
+ /**
+ * Determine whether the target CSS style is active.
+ * @return {boolean}
+ */
+ isActive: cacheWhenLocked( function() {
+ return !!this.getProps();
+ } ),
+
+ /**
+ * Determine whether the target CSS style has changed since the last time it was used.
+ * @return {boolean}
+ */
+ changed: cacheWhenLocked( function() {
+ var currentCss = this.getCss(),
+ changed = currentCss !== this._lastCss;
+ this._lastCss = currentCss;
+ return changed;
+ } ),
+
+ cacheWhenLocked: cacheWhenLocked,
+
+ lock: function() {
+ ++this._locked;
+ },
+
+ unlock: function() {
+ if( !--this._locked ) {
+ delete this._lockedValues;
+ }
+ }
+};
+
+})();/**
+ * Handles parsing, caching, and detecting changes to background (and -pie-background) CSS
+ * @constructor
+ * @param {Element} el the target element
+ */
+PIE.BackgroundStyleInfo = PIE.StyleInfoBase.newStyleInfo( {
+
+ cssProperty: PIE.CSS_PREFIX + 'background',
+ styleProperty: PIE.STYLE_PREFIX + 'Background',
+
+ attachIdents: { 'scroll':1, 'fixed':1, 'local':1 },
+ repeatIdents: { 'repeat-x':1, 'repeat-y':1, 'repeat':1, 'no-repeat':1 },
+ originAndClipIdents: { 'padding-box':1, 'border-box':1, 'content-box':1 },
+ positionIdents: { 'top':1, 'right':1, 'bottom':1, 'left':1, 'center':1 },
+ sizeIdents: { 'contain':1, 'cover':1 },
+ propertyNames: {
+ CLIP: 'backgroundClip',
+ COLOR: 'backgroundColor',
+ IMAGE: 'backgroundImage',
+ ORIGIN: 'backgroundOrigin',
+ POSITION: 'backgroundPosition',
+ REPEAT: 'backgroundRepeat',
+ SIZE: 'backgroundSize'
+ },
+
+ /**
+ * For background styles, we support the -pie-background property but fall back to the standard
+ * backround* properties. The reason we have to use the prefixed version is that IE natively
+ * parses the standard properties and if it sees something it doesn't know how to parse, for example
+ * multiple values or gradient definitions, it will throw that away and not make it available through
+ * currentStyle.
+ *
+ * Format of return object:
+ * {
+ * color: <PIE.Color>,
+ * bgImages: [
+ * {
+ * imgType: 'image',
+ * imgUrl: 'image.png',
+ * imgRepeat: <'no-repeat' | 'repeat-x' | 'repeat-y' | 'repeat'>,
+ * bgPosition: <PIE.BgPosition>,
+ * bgAttachment: <'scroll' | 'fixed' | 'local'>,
+ * bgOrigin: <'border-box' | 'padding-box' | 'content-box'>,
+ * bgClip: <'border-box' | 'padding-box'>,
+ * bgSize: <PIE.BgSize>,
+ * origString: 'url(img.png) no-repeat top left'
+ * },
+ * {
+ * imgType: 'linear-gradient',
+ * gradientStart: <PIE.BgPosition>,
+ * angle: <PIE.Angle>,
+ * stops: [
+ * { color: <PIE.Color>, offset: <PIE.Length> },
+ * { color: <PIE.Color>, offset: <PIE.Length> }, ...
+ * ]
+ * }
+ * ]
+ * }
+ * @param {String} css
+ * @override
+ */
+ parseCss: function( css ) {
+ var el = this.targetElement,
+ cs = el.currentStyle,
+ tokenizer, token, image,
+ tok_type = PIE.Tokenizer.Type,
+ type_operator = tok_type.OPERATOR,
+ type_ident = tok_type.IDENT,
+ type_color = tok_type.COLOR,
+ tokType, tokVal,
+ beginCharIndex = 0,
+ positionIdents = this.positionIdents,
+ gradient, stop, width, height,
+ props = { bgImages: [] };
+
+ function isBgPosToken( token ) {
+ return token && token.isLengthOrPercent() || ( token.tokenType & type_ident && token.tokenValue in positionIdents );
+ }
+
+ function sizeToken( token ) {
+ return token && ( ( token.isLengthOrPercent() && PIE.getLength( token.tokenValue ) ) || ( token.tokenValue === 'auto' && 'auto' ) );
+ }
+
+ // If the CSS3-specific -pie-background property is present, parse it
+ if( this.getCss3() ) {
+ tokenizer = new PIE.Tokenizer( css );
+ image = {};
+
+ while( token = tokenizer.next() ) {
+ tokType = token.tokenType;
+ tokVal = token.tokenValue;
+
+ if( !image.imgType && tokType & tok_type.FUNCTION && tokVal === 'linear-gradient' ) {
+ gradient = { stops: [], imgType: tokVal };
+ stop = {};
+ while( token = tokenizer.next() ) {
+ tokType = token.tokenType;
+ tokVal = token.tokenValue;
+
+ // If we reached the end of the function and had at least 2 stops, flush the info
+ if( tokType & tok_type.CHARACTER && tokVal === ')' ) {
+ if( stop.color ) {
+ gradient.stops.push( stop );
+ }
+ if( gradient.stops.length > 1 ) {
+ PIE.Util.merge( image, gradient );
+ }
+ break;
+ }
+
+ // Color stop - must start with color
+ if( tokType & type_color ) {
+ // if we already have an angle/position, make sure that the previous token was a comma
+ if( gradient.angle || gradient.gradientStart ) {
+ token = tokenizer.prev();
+ if( token.tokenType !== type_operator ) {
+ break; //fail
+ }
+ tokenizer.next();
+ }
+
+ stop = {
+ color: PIE.getColor( tokVal )
+ };
+ // check for offset following color
+ token = tokenizer.next();
+ if( token.isLengthOrPercent() ) {
+ stop.offset = PIE.getLength( token.tokenValue );
+ } else {
+ tokenizer.prev();
+ }
+ }
+ // Angle - can only appear in first spot
+ else if( tokType & tok_type.ANGLE && !gradient.angle && !stop.color && !gradient.stops.length ) {
+ gradient.angle = new PIE.Angle( token.tokenValue );
+ }
+ else if( isBgPosToken( token ) && !gradient.gradientStart && !stop.color && !gradient.stops.length ) {
+ tokenizer.prev();
+ gradient.gradientStart = new PIE.BgPosition(
+ tokenizer.until( function( t ) {
+ return !isBgPosToken( t );
+ }, false )
+ );
+ }
+ else if( tokType & type_operator && tokVal === ',' ) {
+ if( stop.color ) {
+ gradient.stops.push( stop );
+ stop = {};
+ }
+ }
+ else {
+ // Found something we didn't recognize; fail without adding image
+ break;
+ }
+ }
+ }
+ else if( !image.imgType && tokType & tok_type.URL ) {
+ image.imgUrl = tokVal;
+ image.imgType = 'image';
+ }
+ else if( isBgPosToken( token ) && !image.bgPosition ) {
+ tokenizer.prev();
+ image.bgPosition = new PIE.BgPosition(
+ tokenizer.until( function( t ) {
+ return !isBgPosToken( t );
+ }, false )
+ );
+ }
+ else if( tokType & type_ident ) {
+ if( tokVal in this.repeatIdents && !image.imgRepeat ) {
+ image.imgRepeat = tokVal;
+ }
+ else if( tokVal in this.originAndClipIdents && !image.bgOrigin ) {
+ image.bgOrigin = tokVal;
+ if( ( token = tokenizer.next() ) && ( token.tokenType & type_ident ) &&
+ token.tokenValue in this.originAndClipIdents ) {
+ image.bgClip = token.tokenValue;
+ } else {
+ image.bgClip = tokVal;
+ tokenizer.prev();
+ }
+ }
+ else if( tokVal in this.attachIdents && !image.bgAttachment ) {
+ image.bgAttachment = tokVal;
+ }
+ else {
+ return null;
+ }
+ }
+ else if( tokType & type_color && !props.color ) {
+ props.color = PIE.getColor( tokVal );
+ }
+ else if( tokType & type_operator && tokVal === '/' && !image.bgSize && image.bgPosition ) {
+ // background size
+ token = tokenizer.next();
+ if( token.tokenType & type_ident && token.tokenValue in this.sizeIdents ) {
+ image.bgSize = new PIE.BgSize( token.tokenValue );
+ }
+ else if( width = sizeToken( token ) ) {
+ height = sizeToken( tokenizer.next() );
+ if ( !height ) {
+ height = width;
+ tokenizer.prev();
+ }
+ image.bgSize = new PIE.BgSize( width, height );
+ }
+ else {
+ return null;
+ }
+ }
+ // new layer
+ else if( tokType & type_operator && tokVal === ',' && image.imgType ) {
+ image.origString = css.substring( beginCharIndex, tokenizer.ch - 1 );
+ beginCharIndex = tokenizer.ch;
+ props.bgImages.push( image );
+ image = {};
+ }
+ else {
+ // Found something unrecognized; chuck everything
+ return null;
+ }
+ }
+
+ // leftovers
+ if( image.imgType ) {
+ image.origString = css.substring( beginCharIndex );
+ props.bgImages.push( image );
+ }
+ }
+
+ // Otherwise, use the standard background properties; let IE give us the values rather than parsing them
+ else {
+ this.withActualBg( PIE.ieDocMode < 9 ?
+ function() {
+ var propNames = this.propertyNames,
+ posX = cs[propNames.POSITION + 'X'],
+ posY = cs[propNames.POSITION + 'Y'],
+ img = cs[propNames.IMAGE],
+ color = cs[propNames.COLOR];
+
+ if( color !== 'transparent' ) {
+ props.color = PIE.getColor( color )
+ }
+ if( img !== 'none' ) {
+ props.bgImages = [ {
+ imgType: 'image',
+ imgUrl: new PIE.Tokenizer( img ).next().tokenValue,
+ imgRepeat: cs[propNames.REPEAT],
+ bgPosition: new PIE.BgPosition( new PIE.Tokenizer( posX + ' ' + posY ).all() )
+ } ];
+ }
+ } :
+ function() {
+ var propNames = this.propertyNames,
+ splitter = /\s*,\s*/,
+ images = cs[propNames.IMAGE].split( splitter ),
+ color = cs[propNames.COLOR],
+ repeats, positions, origins, clips, sizes, i, len, image, sizeParts;
+
+ if( color !== 'transparent' ) {
+ props.color = PIE.getColor( color )
+ }
+
+ len = images.length;
+ if( len && images[0] !== 'none' ) {
+ repeats = cs[propNames.REPEAT].split( splitter );
+ positions = cs[propNames.POSITION].split( splitter );
+ origins = cs[propNames.ORIGIN].split( splitter );
+ clips = cs[propNames.CLIP].split( splitter );
+ sizes = cs[propNames.SIZE].split( splitter );
+
+ props.bgImages = [];
+ for( i = 0; i < len; i++ ) {
+ image = images[ i ];
+ if( image && image !== 'none' ) {
+ sizeParts = sizes[i].split( ' ' );
+ props.bgImages.push( {
+ origString: image + ' ' + repeats[ i ] + ' ' + positions[ i ] + ' / ' + sizes[ i ] + ' ' +
+ origins[ i ] + ' ' + clips[ i ],
+ imgType: 'image',
+ imgUrl: new PIE.Tokenizer( image ).next().tokenValue,
+ imgRepeat: repeats[ i ],
+ bgPosition: new PIE.BgPosition( new PIE.Tokenizer( positions[ i ] ).all() ),
+ bgOrigin: origins[ i ],
+ bgClip: clips[ i ],
+ bgSize: new PIE.BgSize( sizeParts[ 0 ], sizeParts[ 1 ] )
+ } );
+ }
+ }
+ }
+ }
+ );
+ }
+
+ return ( props.color || props.bgImages[0] ) ? props : null;
+ },
+
+ /**
+ * Execute a function with the actual background styles (not overridden with runtimeStyle
+ * properties set by the renderers) available via currentStyle.
+ * @param fn
+ */
+ withActualBg: function( fn ) {
+ var isIE9 = PIE.ieDocMode > 8,
+ propNames = this.propertyNames,
+ rs = this.targetElement.runtimeStyle,
+ rsImage = rs[propNames.IMAGE],
+ rsColor = rs[propNames.COLOR],
+ rsRepeat = rs[propNames.REPEAT],
+ rsClip, rsOrigin, rsSize, rsPosition, ret;
+
+ if( rsImage ) rs[propNames.IMAGE] = '';
+ if( rsColor ) rs[propNames.COLOR] = '';
+ if( rsRepeat ) rs[propNames.REPEAT] = '';
+ if( isIE9 ) {
+ rsClip = rs[propNames.CLIP];
+ rsOrigin = rs[propNames.ORIGIN];
+ rsPosition = rs[propNames.POSITION];
+ rsSize = rs[propNames.SIZE];
+ if( rsClip ) rs[propNames.CLIP] = '';
+ if( rsOrigin ) rs[propNames.ORIGIN] = '';
+ if( rsPosition ) rs[propNames.POSITION] = '';
+ if( rsSize ) rs[propNames.SIZE] = '';
+ }
+
+ ret = fn.call( this );
+
+ if( rsImage ) rs[propNames.IMAGE] = rsImage;
+ if( rsColor ) rs[propNames.COLOR] = rsColor;
+ if( rsRepeat ) rs[propNames.REPEAT] = rsRepeat;
+ if( isIE9 ) {
+ if( rsClip ) rs[propNames.CLIP] = rsClip;
+ if( rsOrigin ) rs[propNames.ORIGIN] = rsOrigin;
+ if( rsPosition ) rs[propNames.POSITION] = rsPosition;
+ if( rsSize ) rs[propNames.SIZE] = rsSize;
+ }
+
+ return ret;
+ },
+
+ getCss: PIE.StyleInfoBase.cacheWhenLocked( function() {
+ return this.getCss3() ||
+ this.withActualBg( function() {
+ var cs = this.targetElement.currentStyle,
+ propNames = this.propertyNames;
+ return cs[propNames.COLOR] + ' ' + cs[propNames.IMAGE] + ' ' + cs[propNames.REPEAT] + ' ' +
+ cs[propNames.POSITION + 'X'] + ' ' + cs[propNames.POSITION + 'Y'];
+ } );
+ } ),
+
+ getCss3: PIE.StyleInfoBase.cacheWhenLocked( function() {
+ var el = this.targetElement;
+ return el.style[ this.styleProperty ] || el.currentStyle.getAttribute( this.cssProperty );
+ } ),
+
+ /**
+ * Tests if style.PiePngFix or the -pie-png-fix property is set to true in IE6.
+ */
+ isPngFix: function() {
+ var val = 0, el;
+ if( PIE.ieVersion < 7 ) {
+ el = this.targetElement;
+ val = ( '' + ( el.style[ PIE.STYLE_PREFIX + 'PngFix' ] || el.currentStyle.getAttribute( PIE.CSS_PREFIX + 'png-fix' ) ) === 'true' );
+ }
+ return val;
+ },
+
+ /**
+ * The isActive logic is slightly different, because getProps() always returns an object
+ * even if it is just falling back to the native background properties. But we only want
+ * to report is as being "active" if either the -pie-background override property is present
+ * and parses successfully or '-pie-png-fix' is set to true in IE6.
+ */
+ isActive: PIE.StyleInfoBase.cacheWhenLocked( function() {
+ return (this.getCss3() || this.isPngFix()) && !!this.getProps();
+ } )
+
+} );/**
+ * Handles parsing, caching, and detecting changes to border CSS
+ * @constructor
+ * @param {Element} el the target element
+ */
+PIE.BorderStyleInfo = PIE.StyleInfoBase.newStyleInfo( {
+
+ sides: [ 'Top', 'Right', 'Bottom', 'Left' ],
+ namedWidths: {
+ 'thin': '1px',
+ 'medium': '3px',
+ 'thick': '5px'
+ },
+
+ parseCss: function( css ) {
+ var w = {},
+ s = {},
+ c = {},
+ active = false,
+ colorsSame = true,
+ stylesSame = true,
+ widthsSame = true;
+
+ this.withActualBorder( function() {
+ var el = this.targetElement,
+ cs = el.currentStyle,
+ i = 0,
+ style, color, width, lastStyle, lastColor, lastWidth, side, ltr;
+ for( ; i < 4; i++ ) {
+ side = this.sides[ i ];
+
+ ltr = side.charAt(0).toLowerCase();
+ style = s[ ltr ] = cs[ 'border' + side + 'Style' ];
+ color = cs[ 'border' + side + 'Color' ];
+ width = cs[ 'border' + side + 'Width' ];
+
+ if( i > 0 ) {
+ if( style !== lastStyle ) { stylesSame = false; }
+ if( color !== lastColor ) { colorsSame = false; }
+ if( width !== lastWidth ) { widthsSame = false; }
+ }
+ lastStyle = style;
+ lastColor = color;
+ lastWidth = width;
+
+ c[ ltr ] = PIE.getColor( color );
+
+ width = w[ ltr ] = PIE.getLength( s[ ltr ] === 'none' ? '0' : ( this.namedWidths[ width ] || width ) );
+ if( width.pixels( this.targetElement ) > 0 ) {
+ active = true;
+ }
+ }
+ } );
+
+ return active ? {
+ widths: w,
+ styles: s,
+ colors: c,
+ widthsSame: widthsSame,
+ colorsSame: colorsSame,
+ stylesSame: stylesSame
+ } : null;
+ },
+
+ getCss: PIE.StyleInfoBase.cacheWhenLocked( function() {
+ var el = this.targetElement,
+ cs = el.currentStyle,
+ css;
+
+ // Don't redraw or hide borders for cells in border-collapse:collapse tables
+ if( !( el.tagName in PIE.tableCellTags && el.offsetParent.currentStyle.borderCollapse === 'collapse' ) ) {
+ this.withActualBorder( function() {
+ css = cs.borderWidth + '|' + cs.borderStyle + '|' + cs.borderColor;
+ } );
+ }
+ return css;
+ } ),
+
+ /**
+ * Execute a function with the actual border styles (not overridden with runtimeStyle
+ * properties set by the renderers) available via currentStyle.
+ * @param fn
+ */
+ withActualBorder: function( fn ) {
+ var rs = this.targetElement.runtimeStyle,
+ rsWidth = rs.borderWidth,
+ rsColor = rs.borderColor,
+ ret;
+
+ if( rsWidth ) rs.borderWidth = '';
+ if( rsColor ) rs.borderColor = '';
+
+ ret = fn.call( this );
+
+ if( rsWidth ) rs.borderWidth = rsWidth;
+ if( rsColor ) rs.borderColor = rsColor;
+
+ return ret;
+ }
+
+} );
+/**
+ * Handles parsing, caching, and detecting changes to border-radius CSS
+ * @constructor
+ * @param {Element} el the target element
+ */
+(function() {
+
+PIE.BorderRadiusStyleInfo = PIE.StyleInfoBase.newStyleInfo( {
+
+ cssProperty: 'border-radius',
+ styleProperty: 'borderRadius',
+
+ parseCss: function( css ) {
+ var p = null, x, y,
+ tokenizer, token, length,
+ hasNonZero = false;
+
+ if( css ) {
+ tokenizer = new PIE.Tokenizer( css );
+
+ function collectLengths() {
+ var arr = [], num;
+ while( ( token = tokenizer.next() ) && token.isLengthOrPercent() ) {
+ length = PIE.getLength( token.tokenValue );
+ num = length.getNumber();
+ if( num < 0 ) {
+ return null;
+ }
+ if( num > 0 ) {
+ hasNonZero = true;
+ }
+ arr.push( length );
+ }
+ return arr.length > 0 && arr.length < 5 ? {
+ 'tl': arr[0],
+ 'tr': arr[1] || arr[0],
+ 'br': arr[2] || arr[0],
+ 'bl': arr[3] || arr[1] || arr[0]
+ } : null;
+ }
+
+ // Grab the initial sequence of lengths
+ if( x = collectLengths() ) {
+ // See if there is a slash followed by more lengths, for the y-axis radii
+ if( token ) {
+ if( token.tokenType & PIE.Tokenizer.Type.OPERATOR && token.tokenValue === '/' ) {
+ y = collectLengths();
+ }
+ } else {
+ y = x;
+ }
+
+ // Treat all-zero values the same as no value
+ if( hasNonZero && x && y ) {
+ p = { x: x, y : y };
+ }
+ }
+ }
+
+ return p;
+ }
+} );
+
+var zero = PIE.getLength( '0' ),
+ zeros = { 'tl': zero, 'tr': zero, 'br': zero, 'bl': zero };
+PIE.BorderRadiusStyleInfo.ALL_ZERO = { x: zeros, y: zeros };
+
+})();/**
+ * Handles parsing, caching, and detecting changes to border-image CSS
+ * @constructor
+ * @param {Element} el the target element
+ */
+PIE.BorderImageStyleInfo = PIE.StyleInfoBase.newStyleInfo( {
+
+ cssProperty: 'border-image',
+ styleProperty: 'borderImage',
+
+ repeatIdents: { 'stretch':1, 'round':1, 'repeat':1, 'space':1 },
+
+ parseCss: function( css ) {
+ var p = null, tokenizer, token, type, value,
+ slices, widths, outsets,
+ slashCount = 0,
+ Type = PIE.Tokenizer.Type,
+ IDENT = Type.IDENT,
+ NUMBER = Type.NUMBER,
+ PERCENT = Type.PERCENT;
+
+ if( css ) {
+ tokenizer = new PIE.Tokenizer( css );
+ p = {};
+
+ function isSlash( token ) {
+ return token && ( token.tokenType & Type.OPERATOR ) && ( token.tokenValue === '/' );
+ }
+
+ function isFillIdent( token ) {
+ return token && ( token.tokenType & IDENT ) && ( token.tokenValue === 'fill' );
+ }
+
+ function collectSlicesEtc() {
+ slices = tokenizer.until( function( tok ) {
+ return !( tok.tokenType & ( NUMBER | PERCENT ) );
+ } );
+
+ if( isFillIdent( tokenizer.next() ) && !p.fill ) {
+ p.fill = true;
+ } else {
+ tokenizer.prev();
+ }
+
+ if( isSlash( tokenizer.next() ) ) {
+ slashCount++;
+ widths = tokenizer.until( function( token ) {
+ return !token.isLengthOrPercent() && !( ( token.tokenType & IDENT ) && token.tokenValue === 'auto' );
+ } );
+
+ if( isSlash( tokenizer.next() ) ) {
+ slashCount++;
+ outsets = tokenizer.until( function( token ) {
+ return !token.isLength();
+ } );
+ }
+ } else {
+ tokenizer.prev();
+ }
+ }
+
+ while( token = tokenizer.next() ) {
+ type = token.tokenType;
+ value = token.tokenValue;
+
+ // Numbers and/or 'fill' keyword: slice values. May be followed optionally by width values, followed optionally by outset values
+ if( type & ( NUMBER | PERCENT ) && !slices ) {
+ tokenizer.prev();
+ collectSlicesEtc();
+ }
+ else if( isFillIdent( token ) && !p.fill ) {
+ p.fill = true;
+ collectSlicesEtc();
+ }
+
+ // Idents: one or values for 'repeat'
+ else if( ( type & IDENT ) && this.repeatIdents[value] && !p.repeat ) {
+ p.repeat = { h: value };
+ if( token = tokenizer.next() ) {
+ if( ( token.tokenType & IDENT ) && this.repeatIdents[token.tokenValue] ) {
+ p.repeat.v = token.tokenValue;
+ } else {
+ tokenizer.prev();
+ }
+ }
+ }
+
+ // URL of the image
+ else if( ( type & Type.URL ) && !p.src ) {
+ p.src = value;
+ }
+
+ // Found something unrecognized; exit.
+ else {
+ return null;
+ }
+ }
+
+ // Validate what we collected
+ if( !p.src || !slices || slices.length < 1 || slices.length > 4 ||
+ ( widths && widths.length > 4 ) || ( slashCount === 1 && widths.length < 1 ) ||
+ ( outsets && outsets.length > 4 ) || ( slashCount === 2 && outsets.length < 1 ) ) {
+ return null;
+ }
+
+ // Fill in missing values
+ if( !p.repeat ) {
+ p.repeat = { h: 'stretch' };
+ }
+ if( !p.repeat.v ) {
+ p.repeat.v = p.repeat.h;
+ }
+
+ function distributeSides( tokens, convertFn ) {
+ return {
+ 't': convertFn( tokens[0] ),
+ 'r': convertFn( tokens[1] || tokens[0] ),
+ 'b': convertFn( tokens[2] || tokens[0] ),
+ 'l': convertFn( tokens[3] || tokens[1] || tokens[0] )
+ };
+ }
+
+ p.slice = distributeSides( slices, function( tok ) {
+ return PIE.getLength( ( tok.tokenType & NUMBER ) ? tok.tokenValue + 'px' : tok.tokenValue );
+ } );
+
+ if( widths && widths[0] ) {
+ p.widths = distributeSides( widths, function( tok ) {
+ return tok.isLengthOrPercent() ? PIE.getLength( tok.tokenValue ) : tok.tokenValue;
+ } );
+ }
+
+ if( outsets && outsets[0] ) {
+ p.outset = distributeSides( outsets, function( tok ) {
+ return tok.isLength() ? PIE.getLength( tok.tokenValue ) : tok.tokenValue;
+ } );
+ }
+ }
+
+ return p;
+ }
+
+} );/**
+ * Handles parsing, caching, and detecting changes to box-shadow CSS
+ * @constructor
+ * @param {Element} el the target element
+ */
+PIE.BoxShadowStyleInfo = PIE.StyleInfoBase.newStyleInfo( {
+
+ cssProperty: 'box-shadow',
+ styleProperty: 'boxShadow',
+
+ parseCss: function( css ) {
+ var props,
+ getLength = PIE.getLength,
+ Type = PIE.Tokenizer.Type,
+ tokenizer;
+
+ if( css ) {
+ tokenizer = new PIE.Tokenizer( css );
+ props = { outset: [], inset: [] };
+
+ function parseItem() {
+ var token, type, value, color, lengths, inset, len;
+
+ while( token = tokenizer.next() ) {
+ value = token.tokenValue;
+ type = token.tokenType;
+
+ if( type & Type.OPERATOR && value === ',' ) {
+ break;
+ }
+ else if( token.isLength() && !lengths ) {
+ tokenizer.prev();
+ lengths = tokenizer.until( function( token ) {
+ return !token.isLength();
+ } );
+ }
+ else if( type & Type.COLOR && !color ) {
+ color = value;
+ }
+ else if( type & Type.IDENT && value === 'inset' && !inset ) {
+ inset = true;
+ }
+ else { //encountered an unrecognized token; fail.
+ return false;
+ }
+ }
+
+ len = lengths && lengths.length;
+ if( len > 1 && len < 5 ) {
+ ( inset ? props.inset : props.outset ).push( {
+ xOffset: getLength( lengths[0].tokenValue ),
+ yOffset: getLength( lengths[1].tokenValue ),
+ blur: getLength( lengths[2] ? lengths[2].tokenValue : '0' ),
+ spread: getLength( lengths[3] ? lengths[3].tokenValue : '0' ),
+ color: PIE.getColor( color || 'currentColor' )
+ } );
+ return true;
+ }
+ return false;
+ }
+
+ while( parseItem() ) {}
+ }
+
+ return props && ( props.inset.length || props.outset.length ) ? props : null;
+ }
+} );
+/**
+ * Retrieves the state of the element's visibility and display
+ * @constructor
+ * @param {Element} el the target element
+ */
+PIE.VisibilityStyleInfo = PIE.StyleInfoBase.newStyleInfo( {
+
+ getCss: PIE.StyleInfoBase.cacheWhenLocked( function() {
+ var cs = this.targetElement.currentStyle;
+ return cs.visibility + '|' + cs.display;
+ } ),
+
+ parseCss: function() {
+ var el = this.targetElement,
+ rs = el.runtimeStyle,
+ cs = el.currentStyle,
+ rsVis = rs.visibility,
+ csVis;
+
+ rs.visibility = '';
+ csVis = cs.visibility;
+ rs.visibility = rsVis;
+
+ return {
+ visible: csVis !== 'hidden',
+ displayed: cs.display !== 'none'
+ }
+ },
+
+ /**
+ * Always return false for isActive, since this property alone will not trigger
+ * a renderer to do anything.
+ */
+ isActive: function() {
+ return false;
+ }
+
+} );
+PIE.RendererBase = {
+
+ /**
+ * Create a new Renderer class, with the standard constructor, and augmented by
+ * the RendererBase's members.
+ * @param proto
+ */
+ newRenderer: function( proto ) {
+ function Renderer( el, boundsInfo, styleInfos, parent ) {
+ this.targetElement = el;
+ this.boundsInfo = boundsInfo;
+ this.styleInfos = styleInfos;
+ this.parent = parent;
+ }
+ PIE.Util.merge( Renderer.prototype, PIE.RendererBase, proto );
+ return Renderer;
+ },
+
+ /**
+ * Flag indicating the element has already been positioned at least once.
+ * @type {boolean}
+ */
+ isPositioned: false,
+
+ /**
+ * Determine if the renderer needs to be updated
+ * @return {boolean}
+ */
+ needsUpdate: function() {
+ return false;
+ },
+
+ /**
+ * Run any preparation logic that would affect the main update logic of this
+ * renderer or any of the other renderers, e.g. things that might affect the
+ * element's size or style properties.
+ */
+ prepareUpdate: PIE.emptyFn,
+
+ /**
+ * Tell the renderer to update based on modified properties
+ */
+ updateProps: function() {
+ this.destroy();
+ if( this.isActive() ) {
+ this.draw();
+ }
+ },
+
+ /**
+ * Tell the renderer to update based on modified element position
+ */
+ updatePos: function() {
+ this.isPositioned = true;
+ },
+
+ /**
+ * Tell the renderer to update based on modified element dimensions
+ */
+ updateSize: function() {
+ if( this.isActive() ) {
+ this.draw();
+ } else {
+ this.destroy();
+ }
+ },
+
+
+ /**
+ * Add a layer element, with the given z-order index, to the renderer's main box element. We can't use
+ * z-index because that breaks when the root rendering box's z-index is 'auto' in IE8+ standards mode.
+ * So instead we make sure they are inserted into the DOM in the correct order.
+ * @param {number} index
+ * @param {Element} el
+ */
+ addLayer: function( index, el ) {
+ this.removeLayer( index );
+ for( var layers = this._layers || ( this._layers = [] ), i = index + 1, len = layers.length, layer; i < len; i++ ) {
+ layer = layers[i];
+ if( layer ) {
+ break;
+ }
+ }
+ layers[index] = el;
+ this.getBox().insertBefore( el, layer || null );
+ },
+
+ /**
+ * Retrieve a layer element by its index, or null if not present
+ * @param {number} index
+ * @return {Element}
+ */
+ getLayer: function( index ) {
+ var layers = this._layers;
+ return layers && layers[index] || null;
+ },
+
+ /**
+ * Remove a layer element by its index
+ * @param {number} index
+ */
+ removeLayer: function( index ) {
+ var layer = this.getLayer( index ),
+ box = this._box;
+ if( layer && box ) {
+ box.removeChild( layer );
+ this._layers[index] = null;
+ }
+ },
+
+
+ /**
+ * Get a VML shape by name, creating it if necessary.
+ * @param {string} name A name identifying the element
+ * @param {string=} subElName If specified a subelement of the shape will be created with this tag name
+ * @param {Element} parent The parent element for the shape; will be ignored if 'group' is specified
+ * @param {number=} group If specified, an ordinal group for the shape. 1 or greater. Groups are rendered
+ * using container elements in the correct order, to get correct z stacking without z-index.
+ */
+ getShape: function( name, subElName, parent, group ) {
+ var shapes = this._shapes || ( this._shapes = {} ),
+ shape = shapes[ name ],
+ s;
+
+ if( !shape ) {
+ shape = shapes[ name ] = PIE.Util.createVmlElement( 'shape' );
+ if( subElName ) {
+ shape.appendChild( shape[ subElName ] = PIE.Util.createVmlElement( subElName ) );
+ }
+
+ if( group ) {
+ parent = this.getLayer( group );
+ if( !parent ) {
+ this.addLayer( group, doc.createElement( 'group' + group ) );
+ parent = this.getLayer( group );
+ }
+ }
+
+ parent.appendChild( shape );
+
+ s = shape.style;
+ s.position = 'absolute';
+ s.left = s.top = 0;
+ s['behavior'] = 'url(#default#VML)';
+ }
+ return shape;
+ },
+
+ /**
+ * Delete a named shape which was created by getShape(). Returns true if a shape with the
+ * given name was found and deleted, or false if there was no shape of that name.
+ * @param {string} name
+ * @return {boolean}
+ */
+ deleteShape: function( name ) {
+ var shapes = this._shapes,
+ shape = shapes && shapes[ name ];
+ if( shape ) {
+ shape.parentNode.removeChild( shape );
+ delete shapes[ name ];
+ }
+ return !!shape;
+ },
+
+
+ /**
+ * For a given set of border radius length/percentage values, convert them to concrete pixel
+ * values based on the current size of the target element.
+ * @param {Object} radii
+ * @return {Object}
+ */
+ getRadiiPixels: function( radii ) {
+ var el = this.targetElement,
+ bounds = this.boundsInfo.getBounds(),
+ w = bounds.w,
+ h = bounds.h,
+ tlX, tlY, trX, trY, brX, brY, blX, blY, f;
+
+ tlX = radii.x['tl'].pixels( el, w );
+ tlY = radii.y['tl'].pixels( el, h );
+ trX = radii.x['tr'].pixels( el, w );
+ trY = radii.y['tr'].pixels( el, h );
+ brX = radii.x['br'].pixels( el, w );
+ brY = radii.y['br'].pixels( el, h );
+ blX = radii.x['bl'].pixels( el, w );
+ blY = radii.y['bl'].pixels( el, h );
+
+ // If any corner ellipses overlap, reduce them all by the appropriate factor. This formula
+ // is taken straight from the CSS3 Backgrounds and Borders spec.
+ f = Math.min(
+ w / ( tlX + trX ),
+ h / ( trY + brY ),
+ w / ( blX + brX ),
+ h / ( tlY + blY )
+ );
+ if( f < 1 ) {
+ tlX *= f;
+ tlY *= f;
+ trX *= f;
+ trY *= f;
+ brX *= f;
+ brY *= f;
+ blX *= f;
+ blY *= f;
+ }
+
+ return {
+ x: {
+ 'tl': tlX,
+ 'tr': trX,
+ 'br': brX,
+ 'bl': blX
+ },
+ y: {
+ 'tl': tlY,
+ 'tr': trY,
+ 'br': brY,
+ 'bl': blY
+ }
+ }
+ },
+
+ /**
+ * Return the VML path string for the element's background box, with corners rounded.
+ * @param {Object.<{t:number, r:number, b:number, l:number}>} shrink - if present, specifies number of
+ * pixels to shrink the box path inward from the element's four sides.
+ * @param {number=} mult If specified, all coordinates will be multiplied by this number
+ * @param {Object=} radii If specified, this will be used for the corner radii instead of the properties
+ * from this renderer's borderRadiusInfo object.
+ * @return {string} the VML path
+ */
+ getBoxPath: function( shrink, mult, radii ) {
+ mult = mult || 1;
+
+ var r, str,
+ bounds = this.boundsInfo.getBounds(),
+ w = bounds.w * mult,
+ h = bounds.h * mult,
+ radInfo = this.styleInfos.borderRadiusInfo,
+ floor = Math.floor, ceil = Math.ceil,
+ shrinkT = shrink ? shrink.t * mult : 0,
+ shrinkR = shrink ? shrink.r * mult : 0,
+ shrinkB = shrink ? shrink.b * mult : 0,
+ shrinkL = shrink ? shrink.l * mult : 0,
+ tlX, tlY, trX, trY, brX, brY, blX, blY;
+
+ if( radii || radInfo.isActive() ) {
+ r = this.getRadiiPixels( radii || radInfo.getProps() );
+
+ tlX = r.x['tl'] * mult;
+ tlY = r.y['tl'] * mult;
+ trX = r.x['tr'] * mult;
+ trY = r.y['tr'] * mult;
+ brX = r.x['br'] * mult;
+ brY = r.y['br'] * mult;
+ blX = r.x['bl'] * mult;
+ blY = r.y['bl'] * mult;
+
+ str = 'm' + floor( shrinkL ) + ',' + floor( tlY ) +
+ 'qy' + floor( tlX ) + ',' + floor( shrinkT ) +
+ 'l' + ceil( w - trX ) + ',' + floor( shrinkT ) +
+ 'qx' + ceil( w - shrinkR ) + ',' + floor( trY ) +
+ 'l' + ceil( w - shrinkR ) + ',' + ceil( h - brY ) +
+ 'qy' + ceil( w - brX ) + ',' + ceil( h - shrinkB ) +
+ 'l' + floor( blX ) + ',' + ceil( h - shrinkB ) +
+ 'qx' + floor( shrinkL ) + ',' + ceil( h - blY ) + ' x e';
+ } else {
+ // simplified path for non-rounded box
+ str = 'm' + floor( shrinkL ) + ',' + floor( shrinkT ) +
+ 'l' + ceil( w - shrinkR ) + ',' + floor( shrinkT ) +
+ 'l' + ceil( w - shrinkR ) + ',' + ceil( h - shrinkB ) +
+ 'l' + floor( shrinkL ) + ',' + ceil( h - shrinkB ) +
+ 'xe';
+ }
+ return str;
+ },
+
+
+ /**
+ * Get the container element for the shapes, creating it if necessary.
+ */
+ getBox: function() {
+ var box = this.parent.getLayer( this.boxZIndex ), s;
+
+ if( !box ) {
+ box = doc.createElement( this.boxName );
+ s = box.style;
+ s.position = 'absolute';
+ s.top = s.left = 0;
+ this.parent.addLayer( this.boxZIndex, box );
+ }
+
+ return box;
+ },
+
+
+ /**
+ * Hide the actual border of the element. In IE7 and up we can just set its color to transparent;
+ * however IE6 does not support transparent borders so we have to get tricky with it. Also, some elements
+ * like form buttons require removing the border width altogether, so for those we increase the padding
+ * by the border size.
+ */
+ hideBorder: function() {
+ var el = this.targetElement,
+ cs = el.currentStyle,
+ rs = el.runtimeStyle,
+ tag = el.tagName,
+ isIE6 = PIE.ieVersion === 6,
+ sides, side, i;
+
+ if( ( isIE6 && ( tag in PIE.childlessElements || tag === 'FIELDSET' ) ) ||
+ tag === 'BUTTON' || ( tag === 'INPUT' && el.type in PIE.inputButtonTypes ) ) {
+ rs.borderWidth = '';
+ sides = this.styleInfos.borderInfo.sides;
+ for( i = sides.length; i--; ) {
+ side = sides[ i ];
+ rs[ 'padding' + side ] = '';
+ rs[ 'padding' + side ] = ( PIE.getLength( cs[ 'padding' + side ] ) ).pixels( el ) +
+ ( PIE.getLength( cs[ 'border' + side + 'Width' ] ) ).pixels( el ) +
+ ( PIE.ieVersion !== 8 && i % 2 ? 1 : 0 ); //needs an extra horizontal pixel to counteract the extra "inner border" going away
+ }
+ rs.borderWidth = 0;
+ }
+ else if( isIE6 ) {
+ // Wrap all the element's children in a custom element, set the element to visiblity:hidden,
+ // and set the wrapper element to visiblity:visible. This hides the outer element's decorations
+ // (background and border) but displays all the contents.
+ // TODO find a better way to do this that doesn't mess up the DOM parent-child relationship,
+ // as this can interfere with other author scripts which add/modify/delete children. Also, this
+ // won't work for elements which cannot take children, e.g. input/button/textarea/img/etc. Look into
+ // using a compositor filter or some other filter which masks the border.
+ if( el.childNodes.length !== 1 || el.firstChild.tagName !== 'ie6-mask' ) {
+ var cont = doc.createElement( 'ie6-mask' ),
+ s = cont.style, child;
+ s.visibility = 'visible';
+ s.zoom = 1;
+ while( child = el.firstChild ) {
+ cont.appendChild( child );
+ }
+ el.appendChild( cont );
+ rs.visibility = 'hidden';
+ }
+ }
+ else {
+ rs.borderColor = 'transparent';
+ }
+ },
+
+ unhideBorder: function() {
+
+ },
+
+
+ /**
+ * Destroy the rendered objects. This is a base implementation which handles common renderer
+ * structures, but individual renderers may override as necessary.
+ */
+ destroy: function() {
+ this.parent.removeLayer( this.boxZIndex );
+ delete this._shapes;
+ delete this._layers;
+ }
+};
+/**
+ * Root renderer; creates the outermost container element and handles keeping it aligned
+ * with the target element's size and position.
+ * @param {Element} el The target element
+ * @param {Object} styleInfos The StyleInfo objects
+ */
+PIE.RootRenderer = PIE.RendererBase.newRenderer( {
+
+ isActive: function() {
+ var children = this.childRenderers;
+ for( var i in children ) {
+ if( children.hasOwnProperty( i ) && children[ i ].isActive() ) {
+ return true;
+ }
+ }
+ return false;
+ },
+
+ needsUpdate: function() {
+ return this.styleInfos.visibilityInfo.changed();
+ },
+
+ updatePos: function() {
+ if( this.isActive() ) {
+ var el = this.getPositioningElement(),
+ par = el,
+ docEl,
+ parRect,
+ tgtCS = el.currentStyle,
+ tgtPos = tgtCS.position,
+ boxPos,
+ s = this.getBox().style, cs,
+ x = 0, y = 0,
+ elBounds = this.boundsInfo.getBounds(),
+ logicalZoomRatio = elBounds.logicalZoomRatio;
+
+ if( tgtPos === 'fixed' && PIE.ieVersion > 6 ) {
+ x = elBounds.x * logicalZoomRatio;
+ y = elBounds.y * logicalZoomRatio;
+ boxPos = tgtPos;
+ } else {
+ // Get the element's offsets from its nearest positioned ancestor. Uses
+ // getBoundingClientRect for accuracy and speed.
+ do {
+ par = par.offsetParent;
+ } while( par && ( par.currentStyle.position === 'static' ) );
+ if( par ) {
+ parRect = par.getBoundingClientRect();
+ cs = par.currentStyle;
+ x = ( elBounds.x - parRect.left ) * logicalZoomRatio - ( parseFloat(cs.borderLeftWidth) || 0 );
+ y = ( elBounds.y - parRect.top ) * logicalZoomRatio - ( parseFloat(cs.borderTopWidth) || 0 );
+ } else {
+ docEl = doc.documentElement;
+ x = ( elBounds.x + docEl.scrollLeft - docEl.clientLeft ) * logicalZoomRatio;
+ y = ( elBounds.y + docEl.scrollTop - docEl.clientTop ) * logicalZoomRatio;
+ }
+ boxPos = 'absolute';
+ }
+
+ s.position = boxPos;
+ s.left = x;
+ s.top = y;
+ s.zIndex = tgtPos === 'static' ? -1 : tgtCS.zIndex;
+ this.isPositioned = true;
+ }
+ },
+
+ updateSize: PIE.emptyFn,
+
+ updateVisibility: function() {
+ var vis = this.styleInfos.visibilityInfo.getProps();
+ this.getBox().style.display = ( vis.visible && vis.displayed ) ? '' : 'none';
+ },
+
+ updateProps: function() {
+ if( this.isActive() ) {
+ this.updateVisibility();
+ } else {
+ this.destroy();
+ }
+ },
+
+ getPositioningElement: function() {
+ var el = this.targetElement;
+ return el.tagName in PIE.tableCellTags ? el.offsetParent : el;
+ },
+
+ getBox: function() {
+ var box = this._box, el;
+ if( !box ) {
+ el = this.getPositioningElement();
+ box = this._box = doc.createElement( 'css3-container' );
+ box.style['direction'] = 'ltr'; //fix positioning bug in rtl environments
+
+ this.updateVisibility();
+
+ el.parentNode.insertBefore( box, el );
+ }
+ return box;
+ },
+
+ finishUpdate: PIE.emptyFn,
+
+ destroy: function() {
+ var box = this._box, par;
+ if( box && ( par = box.parentNode ) ) {
+ par.removeChild( box );
+ }
+ delete this._box;
+ delete this._layers;
+ }
+
+} );
+/**
+ * Renderer for element backgrounds.
+ * @constructor
+ * @param {Element} el The target element
+ * @param {Object} styleInfos The StyleInfo objects
+ * @param {PIE.RootRenderer} parent
+ */
+PIE.BackgroundRenderer = PIE.RendererBase.newRenderer( {
+
+ boxZIndex: 2,
+ boxName: 'background',
+
+ needsUpdate: function() {
+ var si = this.styleInfos;
+ return si.backgroundInfo.changed() || si.borderRadiusInfo.changed();
+ },
+
+ isActive: function() {
+ var si = this.styleInfos;
+ return si.borderImageInfo.isActive() ||
+ si.borderRadiusInfo.isActive() ||
+ si.backgroundInfo.isActive() ||
+ ( si.boxShadowInfo.isActive() && si.boxShadowInfo.getProps().inset );
+ },
+
+ /**
+ * Draw the shapes
+ */
+ draw: function() {
+ var bounds = this.boundsInfo.getBounds();
+ if( bounds.w && bounds.h ) {
+ this.drawBgColor();
+ this.drawBgImages();
+ }
+ },
+
+ /**
+ * Draw the background color shape
+ */
+ drawBgColor: function() {
+ var props = this.styleInfos.backgroundInfo.getProps(),
+ bounds = this.boundsInfo.getBounds(),
+ el = this.targetElement,
+ color = props && props.color,
+ shape, w, h, s, alpha;
+
+ if( color && color.alpha() > 0 ) {
+ this.hideBackground();
+
+ shape = this.getShape( 'bgColor', 'fill', this.getBox(), 1 );
+ w = bounds.w;
+ h = bounds.h;
+ shape.stroked = false;
+ shape.coordsize = w * 2 + ',' + h * 2;
+ shape.coordorigin = '1,1';
+ shape.path = this.getBoxPath( null, 2 );
+ s = shape.style;
+ s.width = w;
+ s.height = h;
+ shape.fill.color = color.colorValue( el );
+
+ alpha = color.alpha();
+ if( alpha < 1 ) {
+ shape.fill.opacity = alpha;
+ }
+ } else {
+ this.deleteShape( 'bgColor' );
+ }
+ },
+
+ /**
+ * Draw all the background image layers
+ */
+ drawBgImages: function() {
+ var props = this.styleInfos.backgroundInfo.getProps(),
+ bounds = this.boundsInfo.getBounds(),
+ images = props && props.bgImages,
+ img, shape, w, h, s, i;
+
+ if( images ) {
+ this.hideBackground();
+
+ w = bounds.w;
+ h = bounds.h;
+
+ i = images.length;
+ while( i-- ) {
+ img = images[i];
+ shape = this.getShape( 'bgImage' + i, 'fill', this.getBox(), 2 );
+
+ shape.stroked = false;
+ shape.fill.type = 'tile';
+ shape.fillcolor = 'none';
+ shape.coordsize = w * 2 + ',' + h * 2;
+ shape.coordorigin = '1,1';
+ shape.path = this.getBoxPath( 0, 2 );
+ s = shape.style;
+ s.width = w;
+ s.height = h;
+
+ if( img.imgType === 'linear-gradient' ) {
+ this.addLinearGradient( shape, img );
+ }
+ else {
+ shape.fill.src = img.imgUrl;
+ this.positionBgImage( shape, i );
+ }
+ }
+ }
+
+ // Delete any bgImage shapes previously created which weren't used above
+ i = images ? images.length : 0;
+ while( this.deleteShape( 'bgImage' + i++ ) ) {}
+ },
+
+
+ /**
+ * Set the position and clipping of the background image for a layer
+ * @param {Element} shape
+ * @param {number} index
+ */
+ positionBgImage: function( shape, index ) {
+ var me = this;
+ PIE.Util.withImageSize( shape.fill.src, function( size ) {
+ var el = me.targetElement,
+ bounds = me.boundsInfo.getBounds(),
+ elW = bounds.w,
+ elH = bounds.h;
+
+ // It's possible that the element dimensions are zero now but weren't when the original
+ // update executed, make sure that's not the case to avoid divide-by-zero error
+ if( elW && elH ) {
+ var fill = shape.fill,
+ si = me.styleInfos,
+ border = si.borderInfo.getProps(),
+ bw = border && border.widths,
+ bwT = bw ? bw['t'].pixels( el ) : 0,
+ bwR = bw ? bw['r'].pixels( el ) : 0,
+ bwB = bw ? bw['b'].pixels( el ) : 0,
+ bwL = bw ? bw['l'].pixels( el ) : 0,
+ bg = si.backgroundInfo.getProps().bgImages[ index ],
+ bgPos = bg.bgPosition ? bg.bgPosition.coords( el, elW - size.w - bwL - bwR, elH - size.h - bwT - bwB ) : { x:0, y:0 },
+ repeat = bg.imgRepeat,
+ pxX, pxY,
+ clipT = 0, clipL = 0,
+ clipR = elW + 1, clipB = elH + 1, //make sure the default clip region is not inside the box (by a subpixel)
+ clipAdjust = PIE.ieVersion === 8 ? 0 : 1; //prior to IE8 requires 1 extra pixel in the image clip region
+
+ // Positioning - find the pixel offset from the top/left and convert to a ratio
+ // The position is shifted by half a pixel, to adjust for the half-pixel coordorigin shift which is
+ // needed to fix antialiasing but makes the bg image fuzzy.
+ pxX = Math.round( bgPos.x ) + bwL + 0.5;
+ pxY = Math.round( bgPos.y ) + bwT + 0.5;
+ fill.position = ( pxX / elW ) + ',' + ( pxY / elH );
+
+ // Set the size of the image. We have to actually set it to px values otherwise it will not honor
+ // the user's browser zoom level and always display at its natural screen size.
+ fill['size']['x'] = 1; //Can be any value, just has to be set to "prime" it so the next line works. Weird!
+ fill['size'] = size.w + 'px,' + size.h + 'px';
+
+ // Repeating - clip the image shape
+ if( repeat && repeat !== 'repeat' ) {
+ if( repeat === 'repeat-x' || repeat === 'no-repeat' ) {
+ clipT = pxY + 1;
+ clipB = pxY + size.h + clipAdjust;
+ }
+ if( repeat === 'repeat-y' || repeat === 'no-repeat' ) {
+ clipL = pxX + 1;
+ clipR = pxX + size.w + clipAdjust;
+ }
+ shape.style.clip = 'rect(' + clipT + 'px,' + clipR + 'px,' + clipB + 'px,' + clipL + 'px)';
+ }
+ }
+ } );
+ },
+
+
+ /**
+ * Draw the linear gradient for a gradient layer
+ * @param {Element} shape
+ * @param {Object} info The object holding the information about the gradient
+ */
+ addLinearGradient: function( shape, info ) {
+ var el = this.targetElement,
+ bounds = this.boundsInfo.getBounds(),
+ w = bounds.w,
+ h = bounds.h,
+ fill = shape.fill,
+ stops = info.stops,
+ stopCount = stops.length,
+ PI = Math.PI,
+ GradientUtil = PIE.GradientUtil,
+ perpendicularIntersect = GradientUtil.perpendicularIntersect,
+ distance = GradientUtil.distance,
+ metrics = GradientUtil.getGradientMetrics( el, w, h, info ),
+ angle = metrics.angle,
+ startX = metrics.startX,
+ startY = metrics.startY,
+ startCornerX = metrics.startCornerX,
+ startCornerY = metrics.startCornerY,
+ endCornerX = metrics.endCornerX,
+ endCornerY = metrics.endCornerY,
+ deltaX = metrics.deltaX,
+ deltaY = metrics.deltaY,
+ lineLength = metrics.lineLength,
+ vmlAngle, vmlGradientLength, vmlColors,
+ stopPx, vmlOffsetPct,
+ p, i, j, before, after;
+
+ // In VML land, the angle of the rendered gradient depends on the aspect ratio of the shape's
+ // bounding box; for example specifying a 45 deg angle actually results in a gradient
+ // drawn diagonally from one corner to its opposite corner, which will only appear to the
+ // viewer as 45 degrees if the shape is equilateral. We adjust for this by taking the x/y deltas
+ // between the start and end points, multiply one of them by the shape's aspect ratio,
+ // and get their arctangent, resulting in an appropriate VML angle. If the angle is perfectly
+ // horizontal or vertical then we don't need to do this conversion.
+ vmlAngle = ( angle % 90 ) ? Math.atan2( deltaX * w / h, deltaY ) / PI * 180 : ( angle + 90 );
+
+ // VML angles are 180 degrees offset from CSS angles
+ vmlAngle += 180;
+ vmlAngle = vmlAngle % 360;
+
+ // Add all the stops to the VML 'colors' list, including the first and last stops.
+ // For each, we find its pixel offset along the gradient-line; if the offset of a stop is less
+ // than that of its predecessor we increase it to be equal. We then map that pixel offset to a
+ // percentage along the VML gradient-line, which runs from shape corner to corner.
+ p = perpendicularIntersect( startCornerX, startCornerY, angle, endCornerX, endCornerY );
+ vmlGradientLength = distance( startCornerX, startCornerY, p[0], p[1] );
+ vmlColors = [];
+ p = perpendicularIntersect( startX, startY, angle, startCornerX, startCornerY );
+ vmlOffsetPct = distance( startX, startY, p[0], p[1] ) / vmlGradientLength * 100;
+
+ // Find the pixel offsets along the CSS3 gradient-line for each stop.
+ stopPx = [];
+ for( i = 0; i < stopCount; i++ ) {
+ stopPx.push( stops[i].offset ? stops[i].offset.pixels( el, lineLength ) :
+ i === 0 ? 0 : i === stopCount - 1 ? lineLength : null );
+ }
+ // Fill in gaps with evenly-spaced offsets
+ for( i = 1; i < stopCount; i++ ) {
+ if( stopPx[ i ] === null ) {
+ before = stopPx[ i - 1 ];
+ j = i;
+ do {
+ after = stopPx[ ++j ];
+ } while( after === null );
+ stopPx[ i ] = before + ( after - before ) / ( j - i + 1 );
+ }
+ // Make sure each stop's offset is no less than the one before it
+ stopPx[ i ] = Math.max( stopPx[ i ], stopPx[ i - 1 ] );
+ }
+
+ // Convert to percentage along the VML gradient line and add to the VML 'colors' value
+ for( i = 0; i < stopCount; i++ ) {
+ vmlColors.push(
+ ( vmlOffsetPct + ( stopPx[ i ] / vmlGradientLength * 100 ) ) + '% ' + stops[i].color.colorValue( el )
+ );
+ }
+
+ // Now, finally, we're ready to render the gradient fill. Set the start and end colors to
+ // the first and last stop colors; this just sets outer bounds for the gradient.
+ fill['angle'] = vmlAngle;
+ fill['type'] = 'gradient';
+ fill['method'] = 'sigma';
+ fill['color'] = stops[0].color.colorValue( el );
+ fill['color2'] = stops[stopCount - 1].color.colorValue( el );
+ if( fill['colors'] ) { //sometimes the colors object isn't initialized so we have to assign it directly (?)
+ fill['colors'].value = vmlColors.join( ',' );
+ } else {
+ fill['colors'] = vmlColors.join( ',' );
+ }
+ },
+
+
+ /**
+ * Hide the actual background image and color of the element.
+ */
+ hideBackground: function() {
+ var rs = this.targetElement.runtimeStyle;
+ rs.backgroundImage = 'url(about:blank)'; //ensures the background area reacts to mouse events
+ rs.backgroundColor = 'transparent';
+ },
+
+ destroy: function() {
+ PIE.RendererBase.destroy.call( this );
+ var rs = this.targetElement.runtimeStyle;
+ rs.backgroundImage = rs.backgroundColor = '';
+ }
+
+} );
+/**
+ * Renderer for element borders.
+ * @constructor
+ * @param {Element} el The target element
+ * @param {Object} styleInfos The StyleInfo objects
+ * @param {PIE.RootRenderer} parent
+ */
+PIE.BorderRenderer = PIE.RendererBase.newRenderer( {
+
+ boxZIndex: 4,
+ boxName: 'border',
+
+ needsUpdate: function() {
+ var si = this.styleInfos;
+ return si.borderInfo.changed() || si.borderRadiusInfo.changed();
+ },
+
+ isActive: function() {
+ var si = this.styleInfos;
+ return si.borderRadiusInfo.isActive() &&
+ !si.borderImageInfo.isActive() &&
+ si.borderInfo.isActive(); //check BorderStyleInfo last because it's the most expensive
+ },
+
+ /**
+ * Draw the border shape(s)
+ */
+ draw: function() {
+ var el = this.targetElement,
+ props = this.styleInfos.borderInfo.getProps(),
+ bounds = this.boundsInfo.getBounds(),
+ w = bounds.w,
+ h = bounds.h,
+ shape, stroke, s,
+ segments, seg, i, len;
+
+ if( props ) {
+ this.hideBorder();
+
+ segments = this.getBorderSegments( 2 );
+ for( i = 0, len = segments.length; i < len; i++) {
+ seg = segments[i];
+ shape = this.getShape( 'borderPiece' + i, seg.stroke ? 'stroke' : 'fill', this.getBox() );
+ shape.coordsize = w * 2 + ',' + h * 2;
+ shape.coordorigin = '1,1';
+ shape.path = seg.path;
+ s = shape.style;
+ s.width = w;
+ s.height = h;
+
+ shape.filled = !!seg.fill;
+ shape.stroked = !!seg.stroke;
+ if( seg.stroke ) {
+ stroke = shape.stroke;
+ stroke['weight'] = seg.weight + 'px';
+ stroke.color = seg.color.colorValue( el );
+ stroke['dashstyle'] = seg.stroke === 'dashed' ? '2 2' : seg.stroke === 'dotted' ? '1 1' : 'solid';
+ stroke['linestyle'] = seg.stroke === 'double' && seg.weight > 2 ? 'ThinThin' : 'Single';
+ } else {
+ shape.fill.color = seg.fill.colorValue( el );
+ }
+ }
+
+ // remove any previously-created border shapes which didn't get used above
+ while( this.deleteShape( 'borderPiece' + i++ ) ) {}
+ }
+ },
+
+
+ /**
+ * Get the VML path definitions for the border segment(s).
+ * @param {number=} mult If specified, all coordinates will be multiplied by this number
+ * @return {Array.<string>}
+ */
+ getBorderSegments: function( mult ) {
+ var el = this.targetElement,
+ bounds, elW, elH,
+ borderInfo = this.styleInfos.borderInfo,
+ segments = [],
+ floor, ceil, wT, wR, wB, wL,
+ round = Math.round,
+ borderProps, radiusInfo, radii, widths, styles, colors;
+
+ if( borderInfo.isActive() ) {
+ borderProps = borderInfo.getProps();
+
+ widths = borderProps.widths;
+ styles = borderProps.styles;
+ colors = borderProps.colors;
+
+ if( borderProps.widthsSame && borderProps.stylesSame && borderProps.colorsSame ) {
+ if( colors['t'].alpha() > 0 ) {
+ // shortcut for identical border on all sides - only need 1 stroked shape
+ wT = widths['t'].pixels( el ); //thickness
+ wR = wT / 2; //shrink
+ segments.push( {
+ path: this.getBoxPath( { t: wR, r: wR, b: wR, l: wR }, mult ),
+ stroke: styles['t'],
+ color: colors['t'],
+ weight: wT
+ } );
+ }
+ }
+ else {
+ mult = mult || 1;
+ bounds = this.boundsInfo.getBounds();
+ elW = bounds.w;
+ elH = bounds.h;
+
+ wT = round( widths['t'].pixels( el ) );
+ wR = round( widths['r'].pixels( el ) );
+ wB = round( widths['b'].pixels( el ) );
+ wL = round( widths['l'].pixels( el ) );
+ var pxWidths = {
+ 't': wT,
+ 'r': wR,
+ 'b': wB,
+ 'l': wL
+ };
+
+ radiusInfo = this.styleInfos.borderRadiusInfo;
+ if( radiusInfo.isActive() ) {
+ radii = this.getRadiiPixels( radiusInfo.getProps() );
+ }
+
+ floor = Math.floor;
+ ceil = Math.ceil;
+
+ function radius( xy, corner ) {
+ return radii ? radii[ xy ][ corner ] : 0;
+ }
+
+ function curve( corner, shrinkX, shrinkY, startAngle, ccw, doMove ) {
+ var rx = radius( 'x', corner),
+ ry = radius( 'y', corner),
+ deg = 65535,
+ isRight = corner.charAt( 1 ) === 'r',
+ isBottom = corner.charAt( 0 ) === 'b';
+ return ( rx > 0 && ry > 0 ) ?
+ ( doMove ? 'al' : 'ae' ) +
+ ( isRight ? ceil( elW - rx ) : floor( rx ) ) * mult + ',' + // center x
+ ( isBottom ? ceil( elH - ry ) : floor( ry ) ) * mult + ',' + // center y
+ ( floor( rx ) - shrinkX ) * mult + ',' + // width
+ ( floor( ry ) - shrinkY ) * mult + ',' + // height
+ ( startAngle * deg ) + ',' + // start angle
+ ( 45 * deg * ( ccw ? 1 : -1 ) // angle change
+ ) : (
+ ( doMove ? 'm' : 'l' ) +
+ ( isRight ? elW - shrinkX : shrinkX ) * mult + ',' +
+ ( isBottom ? elH - shrinkY : shrinkY ) * mult
+ );
+ }
+
+ function line( side, shrink, ccw, doMove ) {
+ var
+ start = (
+ side === 't' ?
+ floor( radius( 'x', 'tl') ) * mult + ',' + ceil( shrink ) * mult :
+ side === 'r' ?
+ ceil( elW - shrink ) * mult + ',' + floor( radius( 'y', 'tr') ) * mult :
+ side === 'b' ?
+ ceil( elW - radius( 'x', 'br') ) * mult + ',' + floor( elH - shrink ) * mult :
+ // side === 'l' ?
+ floor( shrink ) * mult + ',' + ceil( elH - radius( 'y', 'bl') ) * mult
+ ),
+ end = (
+ side === 't' ?
+ ceil( elW - radius( 'x', 'tr') ) * mult + ',' + ceil( shrink ) * mult :
+ side === 'r' ?
+ ceil( elW - shrink ) * mult + ',' + ceil( elH - radius( 'y', 'br') ) * mult :
+ side === 'b' ?
+ floor( radius( 'x', 'bl') ) * mult + ',' + floor( elH - shrink ) * mult :
+ // side === 'l' ?
+ floor( shrink ) * mult + ',' + floor( radius( 'y', 'tl') ) * mult
+ );
+ return ccw ? ( doMove ? 'm' + end : '' ) + 'l' + start :
+ ( doMove ? 'm' + start : '' ) + 'l' + end;
+ }
+
+
+ function addSide( side, sideBefore, sideAfter, cornerBefore, cornerAfter, baseAngle ) {
+ var vert = side === 'l' || side === 'r',
+ sideW = pxWidths[ side ],
+ beforeX, beforeY, afterX, afterY;
+
+ if( sideW > 0 && styles[ side ] !== 'none' && colors[ side ].alpha() > 0 ) {
+ beforeX = pxWidths[ vert ? side : sideBefore ];
+ beforeY = pxWidths[ vert ? sideBefore : side ];
+ afterX = pxWidths[ vert ? side : sideAfter ];
+ afterY = pxWidths[ vert ? sideAfter : side ];
+
+ if( styles[ side ] === 'dashed' || styles[ side ] === 'dotted' ) {
+ segments.push( {
+ path: curve( cornerBefore, beforeX, beforeY, baseAngle + 45, 0, 1 ) +
+ curve( cornerBefore, 0, 0, baseAngle, 1, 0 ),
+ fill: colors[ side ]
+ } );
+ segments.push( {
+ path: line( side, sideW / 2, 0, 1 ),
+ stroke: styles[ side ],
+ weight: sideW,
+ color: colors[ side ]
+ } );
+ segments.push( {
+ path: curve( cornerAfter, afterX, afterY, baseAngle, 0, 1 ) +
+ curve( cornerAfter, 0, 0, baseAngle - 45, 1, 0 ),
+ fill: colors[ side ]
+ } );
+ }
+ else {
+ segments.push( {
+ path: curve( cornerBefore, beforeX, beforeY, baseAngle + 45, 0, 1 ) +
+ line( side, sideW, 0, 0 ) +
+ curve( cornerAfter, afterX, afterY, baseAngle, 0, 0 ) +
+
+ ( styles[ side ] === 'double' && sideW > 2 ?
+ curve( cornerAfter, afterX - floor( afterX / 3 ), afterY - floor( afterY / 3 ), baseAngle - 45, 1, 0 ) +
+ line( side, ceil( sideW / 3 * 2 ), 1, 0 ) +
+ curve( cornerBefore, beforeX - floor( beforeX / 3 ), beforeY - floor( beforeY / 3 ), baseAngle, 1, 0 ) +
+ 'x ' +
+ curve( cornerBefore, floor( beforeX / 3 ), floor( beforeY / 3 ), baseAngle + 45, 0, 1 ) +
+ line( side, floor( sideW / 3 ), 1, 0 ) +
+ curve( cornerAfter, floor( afterX / 3 ), floor( afterY / 3 ), baseAngle, 0, 0 )
+ : '' ) +
+
+ curve( cornerAfter, 0, 0, baseAngle - 45, 1, 0 ) +
+ line( side, 0, 1, 0 ) +
+ curve( cornerBefore, 0, 0, baseAngle, 1, 0 ),
+ fill: colors[ side ]
+ } );
+ }
+ }
+ }
+
+ addSide( 't', 'l', 'r', 'tl', 'tr', 90 );
+ addSide( 'r', 't', 'b', 'tr', 'br', 0 );
+ addSide( 'b', 'r', 'l', 'br', 'bl', -90 );
+ addSide( 'l', 'b', 't', 'bl', 'tl', -180 );
+ }
+ }
+
+ return segments;
+ },
+
+ destroy: function() {
+ var me = this;
+ if (me.finalized || !me.styleInfos.borderImageInfo.isActive()) {
+ me.targetElement.runtimeStyle.borderColor = '';
+ }
+ PIE.RendererBase.destroy.call( me );
+ }
+
+
+} );
+/**
+ * Renderer for border-image
+ * @constructor
+ * @param {Element} el The target element
+ * @param {Object} styleInfos The StyleInfo objects
+ * @param {PIE.RootRenderer} parent
+ */
+PIE.BorderImageRenderer = PIE.RendererBase.newRenderer( {
+
+ boxZIndex: 5,
+ pieceNames: [ 't', 'tr', 'r', 'br', 'b', 'bl', 'l', 'tl', 'c' ],
+
+ needsUpdate: function() {
+ return this.styleInfos.borderImageInfo.changed();
+ },
+
+ isActive: function() {
+ return this.styleInfos.borderImageInfo.isActive();
+ },
+
+ draw: function() {
+ this.getBox(); //make sure pieces are created
+
+ var props = this.styleInfos.borderImageInfo.getProps(),
+ borderProps = this.styleInfos.borderInfo.getProps(),
+ bounds = this.boundsInfo.getBounds(),
+ el = this.targetElement,
+ pieces = this.pieces;
+
+ PIE.Util.withImageSize( props.src, function( imgSize ) {
+ var elW = bounds.w,
+ elH = bounds.h,
+ zero = PIE.getLength( '0' ),
+ widths = props.widths || ( borderProps ? borderProps.widths : { 't': zero, 'r': zero, 'b': zero, 'l': zero } ),
+ widthT = widths['t'].pixels( el ),
+ widthR = widths['r'].pixels( el ),
+ widthB = widths['b'].pixels( el ),
+ widthL = widths['l'].pixels( el ),
+ slices = props.slice,
+ sliceT = slices['t'].pixels( el ),
+ sliceR = slices['r'].pixels( el ),
+ sliceB = slices['b'].pixels( el ),
+ sliceL = slices['l'].pixels( el );
+
+ // Piece positions and sizes
+ function setSizeAndPos( piece, w, h, x, y ) {
+ var s = pieces[piece].style,
+ max = Math.max;
+ s.width = max(w, 0);
+ s.height = max(h, 0);
+ s.left = x;
+ s.top = y;
+ }
+ setSizeAndPos( 'tl', widthL, widthT, 0, 0 );
+ setSizeAndPos( 't', elW - widthL - widthR, widthT, widthL, 0 );
+ setSizeAndPos( 'tr', widthR, widthT, elW - widthR, 0 );
+ setSizeAndPos( 'r', widthR, elH - widthT - widthB, elW - widthR, widthT );
+ setSizeAndPos( 'br', widthR, widthB, elW - widthR, elH - widthB );
+ setSizeAndPos( 'b', elW - widthL - widthR, widthB, widthL, elH - widthB );
+ setSizeAndPos( 'bl', widthL, widthB, 0, elH - widthB );
+ setSizeAndPos( 'l', widthL, elH - widthT - widthB, 0, widthT );
+ setSizeAndPos( 'c', elW - widthL - widthR, elH - widthT - widthB, widthL, widthT );
+
+
+ // image croppings
+ function setCrops( sides, crop, val ) {
+ for( var i=0, len=sides.length; i < len; i++ ) {
+ pieces[ sides[i] ]['imagedata'][ crop ] = val;
+ }
+ }
+
+ // corners
+ setCrops( [ 'tl', 't', 'tr' ], 'cropBottom', ( imgSize.h - sliceT ) / imgSize.h );
+ setCrops( [ 'tl', 'l', 'bl' ], 'cropRight', ( imgSize.w - sliceL ) / imgSize.w );
+ setCrops( [ 'bl', 'b', 'br' ], 'cropTop', ( imgSize.h - sliceB ) / imgSize.h );
+ setCrops( [ 'tr', 'r', 'br' ], 'cropLeft', ( imgSize.w - sliceR ) / imgSize.w );
+
+ // edges and center
+ // TODO right now this treats everything like 'stretch', need to support other schemes
+ //if( props.repeat.v === 'stretch' ) {
+ setCrops( [ 'l', 'r', 'c' ], 'cropTop', sliceT / imgSize.h );
+ setCrops( [ 'l', 'r', 'c' ], 'cropBottom', sliceB / imgSize.h );
+ //}
+ //if( props.repeat.h === 'stretch' ) {
+ setCrops( [ 't', 'b', 'c' ], 'cropLeft', sliceL / imgSize.w );
+ setCrops( [ 't', 'b', 'c' ], 'cropRight', sliceR / imgSize.w );
+ //}
+
+ // center fill
+ pieces['c'].style.display = props.fill ? '' : 'none';
+ }, this );
+ },
+
+ getBox: function() {
+ var box = this.parent.getLayer( this.boxZIndex ),
+ s, piece, i,
+ pieceNames = this.pieceNames,
+ len = pieceNames.length;
+
+ if( !box ) {
+ box = doc.createElement( 'border-image' );
+ s = box.style;
+ s.position = 'absolute';
+
+ this.pieces = {};
+
+ for( i = 0; i < len; i++ ) {
+ piece = this.pieces[ pieceNames[i] ] = PIE.Util.createVmlElement( 'rect' );
+ piece.appendChild( PIE.Util.createVmlElement( 'imagedata' ) );
+ s = piece.style;
+ s['behavior'] = 'url(#default#VML)';
+ s.position = "absolute";
+ s.top = s.left = 0;
+ piece['imagedata'].src = this.styleInfos.borderImageInfo.getProps().src;
+ piece.stroked = false;
+ piece.filled = false;
+ box.appendChild( piece );
+ }
+
+ this.parent.addLayer( this.boxZIndex, box );
+ }
+
+ return box;
+ },
+
+ prepareUpdate: function() {
+ if (this.isActive()) {
+ var me = this,
+ el = me.targetElement,
+ rs = el.runtimeStyle,
+ widths = me.styleInfos.borderImageInfo.getProps().widths;
+
+ // Force border-style to solid so it doesn't collapse
+ rs.borderStyle = 'solid';
+
+ // If widths specified in border-image shorthand, override border-width
+ // NOTE px units needed here as this gets used by the IE9 renderer too
+ if ( widths ) {
+ rs.borderTopWidth = widths['t'].pixels( el ) + 'px';
+ rs.borderRightWidth = widths['r'].pixels( el ) + 'px';
+ rs.borderBottomWidth = widths['b'].pixels( el ) + 'px';
+ rs.borderLeftWidth = widths['l'].pixels( el ) + 'px';
+ }
+
+ // Make the border transparent
+ me.hideBorder();
+ }
+ },
+
+ destroy: function() {
+ var me = this,
+ rs = me.targetElement.runtimeStyle;
+ rs.borderStyle = '';
+ if (me.finalized || !me.styleInfos.borderInfo.isActive()) {
+ rs.borderColor = rs.borderWidth = '';
+ }
+ PIE.RendererBase.destroy.call( this );
+ }
+
+} );
+/**
+ * Renderer for outset box-shadows
+ * @constructor
+ * @param {Element} el The target element
+ * @param {Object} styleInfos The StyleInfo objects
+ * @param {PIE.RootRenderer} parent
+ */
+PIE.BoxShadowOutsetRenderer = PIE.RendererBase.newRenderer( {
+
+ boxZIndex: 1,
+ boxName: 'outset-box-shadow',
+
+ needsUpdate: function() {
+ var si = this.styleInfos;
+ return si.boxShadowInfo.changed() || si.borderRadiusInfo.changed();
+ },
+
+ isActive: function() {
+ var boxShadowInfo = this.styleInfos.boxShadowInfo;
+ return boxShadowInfo.isActive() && boxShadowInfo.getProps().outset[0];
+ },
+
+ draw: function() {
+ var me = this,
+ el = this.targetElement,
+ box = this.getBox(),
+ styleInfos = this.styleInfos,
+ shadowInfos = styleInfos.boxShadowInfo.getProps().outset,
+ radii = styleInfos.borderRadiusInfo.getProps(),
+ len = shadowInfos.length,
+ i = len, j,
+ bounds = this.boundsInfo.getBounds(),
+ w = bounds.w,
+ h = bounds.h,
+ clipAdjust = PIE.ieVersion === 8 ? 1 : 0, //workaround for IE8 bug where VML leaks out top/left of clip region by 1px
+ corners = [ 'tl', 'tr', 'br', 'bl' ], corner,
+ shadowInfo, shape, fill, ss, xOff, yOff, spread, blur, shrink, color, alpha, path,
+ totalW, totalH, focusX, focusY, isBottom, isRight;
+
+
+ function getShadowShape( index, corner, xOff, yOff, color, blur, path ) {
+ var shape = me.getShape( 'shadow' + index + corner, 'fill', box, len - index ),
+ fill = shape.fill;
+
+ // Position and size
+ shape['coordsize'] = w * 2 + ',' + h * 2;
+ shape['coordorigin'] = '1,1';
+
+ // Color and opacity
+ shape['stroked'] = false;
+ shape['filled'] = true;
+ fill.color = color.colorValue( el );
+ if( blur ) {
+ fill['type'] = 'gradienttitle'; //makes the VML gradient follow the shape's outline - hooray for undocumented features?!?!
+ fill['color2'] = fill.color;
+ fill['opacity'] = 0;
+ }
+
+ // Path
+ shape.path = path;
+
+ // This needs to go last for some reason, to prevent rendering at incorrect size
+ ss = shape.style;
+ ss.left = xOff;
+ ss.top = yOff;
+ ss.width = w;
+ ss.height = h;
+
+ return shape;
+ }
+
+
+ while( i-- ) {
+ shadowInfo = shadowInfos[ i ];
+ xOff = shadowInfo.xOffset.pixels( el );
+ yOff = shadowInfo.yOffset.pixels( el );
+ spread = shadowInfo.spread.pixels( el );
+ blur = shadowInfo.blur.pixels( el );
+ color = shadowInfo.color;
+ // Shape path
+ shrink = -spread - blur;
+ if( !radii && blur ) {
+ // If blurring, use a non-null border radius info object so that getBoxPath will
+ // round the corners of the expanded shadow shape rather than squaring them off.
+ radii = PIE.BorderRadiusStyleInfo.ALL_ZERO;
+ }
+ path = this.getBoxPath( { t: shrink, r: shrink, b: shrink, l: shrink }, 2, radii );
+
+ if( blur ) {
+ totalW = ( spread + blur ) * 2 + w;
+ totalH = ( spread + blur ) * 2 + h;
+ focusX = totalW ? blur * 2 / totalW : 0;
+ focusY = totalH ? blur * 2 / totalH : 0;
+ if( blur - spread > w / 2 || blur - spread > h / 2 ) {
+ // If the blur is larger than half the element's narrowest dimension, we cannot do
+ // this with a single shape gradient, because its focussize would have to be less than
+ // zero which results in ugly artifacts. Instead we create four shapes, each with its
+ // gradient focus past center, and then clip them so each only shows the quadrant
+ // opposite the focus.
+ for( j = 4; j--; ) {
+ corner = corners[j];
+ isBottom = corner.charAt( 0 ) === 'b';
+ isRight = corner.charAt( 1 ) === 'r';
+ shape = getShadowShape( i, corner, xOff, yOff, color, blur, path );
+ fill = shape.fill;
+ fill['focusposition'] = ( isRight ? 1 - focusX : focusX ) + ',' +
+ ( isBottom ? 1 - focusY : focusY );
+ fill['focussize'] = '0,0';
+
+ // Clip to show only the appropriate quadrant. Add 1px to the top/left clip values
+ // in IE8 to prevent a bug where IE8 displays one pixel outside the clip region.
+ shape.style.clip = 'rect(' + ( ( isBottom ? totalH / 2 : 0 ) + clipAdjust ) + 'px,' +
+ ( isRight ? totalW : totalW / 2 ) + 'px,' +
+ ( isBottom ? totalH : totalH / 2 ) + 'px,' +
+ ( ( isRight ? totalW / 2 : 0 ) + clipAdjust ) + 'px)';
+ }
+ } else {
+ // TODO delete old quadrant shapes if resizing expands past the barrier
+ shape = getShadowShape( i, '', xOff, yOff, color, blur, path );
+ fill = shape.fill;
+ fill['focusposition'] = focusX + ',' + focusY;
+ fill['focussize'] = ( 1 - focusX * 2 ) + ',' + ( 1 - focusY * 2 );
+ }
+ } else {
+ shape = getShadowShape( i, '', xOff, yOff, color, blur, path );
+ alpha = color.alpha();
+ if( alpha < 1 ) {
+ // shape.style.filter = 'alpha(opacity=' + ( alpha * 100 ) + ')';
+ // ss.filter = 'progid:DXImageTransform.Microsoft.BasicImage(opacity=' + ( alpha ) + ')';
+ shape.fill.opacity = alpha;
+ }
+ }
+ }
+ }
+
+} );
+/**
+ * Renderer for re-rendering img elements using VML. Kicks in if the img has
+ * a border-radius applied, or if the -pie-png-fix flag is set.
+ * @constructor
+ * @param {Element} el The target element
+ * @param {Object} styleInfos The StyleInfo objects
+ * @param {PIE.RootRenderer} parent
+ */
+PIE.ImgRenderer = PIE.RendererBase.newRenderer( {
+
+ boxZIndex: 6,
+ boxName: 'imgEl',
+
+ needsUpdate: function() {
+ var si = this.styleInfos;
+ return this.targetElement.src !== this._lastSrc || si.borderRadiusInfo.changed();
+ },
+
+ isActive: function() {
+ var si = this.styleInfos;
+ return si.borderRadiusInfo.isActive() || si.backgroundInfo.isPngFix();
+ },
+
+ draw: function() {
+ this._lastSrc = src;
+ this.hideActualImg();
+
+ var shape = this.getShape( 'img', 'fill', this.getBox() ),
+ fill = shape.fill,
+ bounds = this.boundsInfo.getBounds(),
+ w = bounds.w,
+ h = bounds.h,
+ borderProps = this.styleInfos.borderInfo.getProps(),
+ borderWidths = borderProps && borderProps.widths,
+ el = this.targetElement,
+ src = el.src,
+ round = Math.round,
+ cs = el.currentStyle,
+ getLength = PIE.getLength,
+ s, zero;
+
+ // In IE6, the BorderRenderer will have hidden the border by moving the border-width to
+ // the padding; therefore we want to pretend the borders have no width so they aren't doubled
+ // when adding in the current padding value below.
+ if( !borderWidths || PIE.ieVersion < 7 ) {
+ zero = PIE.getLength( '0' );
+ borderWidths = { 't': zero, 'r': zero, 'b': zero, 'l': zero };
+ }
+
+ shape.stroked = false;
+ fill.type = 'frame';
+ fill.src = src;
+ fill.position = (w ? 0.5 / w : 0) + ',' + (h ? 0.5 / h : 0);
+ shape.coordsize = w * 2 + ',' + h * 2;
+ shape.coordorigin = '1,1';
+ shape.path = this.getBoxPath( {
+ t: round( borderWidths['t'].pixels( el ) + getLength( cs.paddingTop ).pixels( el ) ),
+ r: round( borderWidths['r'].pixels( el ) + getLength( cs.paddingRight ).pixels( el ) ),
+ b: round( borderWidths['b'].pixels( el ) + getLength( cs.paddingBottom ).pixels( el ) ),
+ l: round( borderWidths['l'].pixels( el ) + getLength( cs.paddingLeft ).pixels( el ) )
+ }, 2 );
+ s = shape.style;
+ s.width = w;
+ s.height = h;
+ },
+
+ hideActualImg: function() {
+ this.targetElement.runtimeStyle.filter = 'alpha(opacity=0)';
+ },
+
+ destroy: function() {
+ PIE.RendererBase.destroy.call( this );
+ this.targetElement.runtimeStyle.filter = '';
+ }
+
+} );
+/**
+ * Root renderer for IE9; manages the rendering layers in the element's background
+ * @param {Element} el The target element
+ * @param {Object} styleInfos The StyleInfo objects
+ */
+PIE.IE9RootRenderer = PIE.RendererBase.newRenderer( {
+
+ updatePos: PIE.emptyFn,
+ updateSize: PIE.emptyFn,
+ updateVisibility: PIE.emptyFn,
+ updateProps: PIE.emptyFn,
+
+ outerCommasRE: /^,+|,+$/g,
+ innerCommasRE: /,+/g,
+
+ setBackgroundLayer: function(zIndex, bg) {
+ var me = this,
+ bgLayers = me._bgLayers || ( me._bgLayers = [] ),
+ undef;
+ bgLayers[zIndex] = bg || undef;
+ },
+
+ finishUpdate: function() {
+ var me = this,
+ bgLayers = me._bgLayers,
+ bg;
+ if( bgLayers && ( bg = bgLayers.join( ',' ).replace( me.outerCommasRE, '' ).replace( me.innerCommasRE, ',' ) ) !== me._lastBg ) {
+ me._lastBg = me.targetElement.runtimeStyle.background = bg;
+ }
+ },
+
+ destroy: function() {
+ this.targetElement.runtimeStyle.background = '';
+ delete this._bgLayers;
+ }
+
+} );
+/**
+ * Renderer for element backgrounds, specific for IE9. Only handles translating CSS3 gradients
+ * to an equivalent SVG data URI.
+ * @constructor
+ * @param {Element} el The target element
+ * @param {Object} styleInfos The StyleInfo objects
+ */
+PIE.IE9BackgroundRenderer = PIE.RendererBase.newRenderer( {
+
+ bgLayerZIndex: 1,
+
+ needsUpdate: function() {
+ var si = this.styleInfos;
+ return si.backgroundInfo.changed();
+ },
+
+ isActive: function() {
+ var si = this.styleInfos;
+ return si.backgroundInfo.isActive() || si.borderImageInfo.isActive();
+ },
+
+ draw: function() {
+ var me = this,
+ props = me.styleInfos.backgroundInfo.getProps(),
+ bg, images, i = 0, img, bgAreaSize, bgSize;
+
+ if ( props ) {
+ bg = [];
+
+ images = props.bgImages;
+ if ( images ) {
+ while( img = images[ i++ ] ) {
+ if (img.imgType === 'linear-gradient' ) {
+ bgAreaSize = me.getBgAreaSize( img.bgOrigin );
+ bgSize = ( img.bgSize || PIE.BgSize.DEFAULT ).pixels(
+ me.targetElement, bgAreaSize.w, bgAreaSize.h, bgAreaSize.w, bgAreaSize.h
+ ),
+ bg.push(
+ 'url(data:image/svg+xml,' + escape( me.getGradientSvg( img, bgSize.w, bgSize.h ) ) + ') ' +
+ me.bgPositionToString( img.bgPosition ) + ' / ' + bgSize.w + 'px ' + bgSize.h + 'px ' +
+ ( img.bgAttachment || '' ) + ' ' + ( img.bgOrigin || '' ) + ' ' + ( img.bgClip || '' )
+ );
+ } else {
+ bg.push( img.origString );
+ }
+ }
+ }
+
+ if ( props.color ) {
+ bg.push( props.color.val );
+ }
+
+ me.parent.setBackgroundLayer(me.bgLayerZIndex, bg.join(','));
+ }
+ },
+
+ bgPositionToString: function( bgPosition ) {
+ return bgPosition ? bgPosition.tokens.map(function(token) {
+ return token.tokenValue;
+ }).join(' ') : '0 0';
+ },
+
+ getBgAreaSize: function( bgOrigin ) {
+ var me = this,
+ el = me.targetElement,
+ bounds = me.boundsInfo.getBounds(),
+ elW = bounds.w,
+ elH = bounds.h,
+ w = elW,
+ h = elH,
+ borders, getLength, cs;
+
+ if( bgOrigin !== 'border-box' ) {
+ borders = me.styleInfos.borderInfo.getProps();
+ if( borders && ( borders = borders.widths ) ) {
+ w -= borders[ 'l' ].pixels( el ) + borders[ 'l' ].pixels( el );
+ h -= borders[ 't' ].pixels( el ) + borders[ 'b' ].pixels( el );
+ }
+ }
+
+ if ( bgOrigin === 'content-box' ) {
+ getLength = PIE.getLength;
+ cs = el.currentStyle;
+ w -= getLength( cs.paddingLeft ).pixels( el ) + getLength( cs.paddingRight ).pixels( el );
+ h -= getLength( cs.paddingTop ).pixels( el ) + getLength( cs.paddingBottom ).pixels( el );
+ }
+
+ return { w: w, h: h };
+ },
+
+ getGradientSvg: function( info, bgWidth, bgHeight ) {
+ var el = this.targetElement,
+ stopsInfo = info.stops,
+ stopCount = stopsInfo.length,
+ metrics = PIE.GradientUtil.getGradientMetrics( el, bgWidth, bgHeight, info ),
+ startX = metrics.startX,
+ startY = metrics.startY,
+ endX = metrics.endX,
+ endY = metrics.endY,
+ lineLength = metrics.lineLength,
+ stopPx,
+ i, j, before, after,
+ svg;
+
+ // Find the pixel offsets along the CSS3 gradient-line for each stop.
+ stopPx = [];
+ for( i = 0; i < stopCount; i++ ) {
+ stopPx.push( stopsInfo[i].offset ? stopsInfo[i].offset.pixels( el, lineLength ) :
+ i === 0 ? 0 : i === stopCount - 1 ? lineLength : null );
+ }
+ // Fill in gaps with evenly-spaced offsets
+ for( i = 1; i < stopCount; i++ ) {
+ if( stopPx[ i ] === null ) {
+ before = stopPx[ i - 1 ];
+ j = i;
+ do {
+ after = stopPx[ ++j ];
+ } while( after === null );
+ stopPx[ i ] = before + ( after - before ) / ( j - i + 1 );
+ }
+ }
+
+ svg = [
+ '<svg width="' + bgWidth + '" height="' + bgHeight + '" xmlns="http://www.w3.org/2000/svg">' +
+ '<defs>' +
+ '<linearGradient id="g" gradientUnits="userSpaceOnUse"' +
+ ' x1="' + ( startX / bgWidth * 100 ) + '%" y1="' + ( startY / bgHeight * 100 ) + '%" x2="' + ( endX / bgWidth * 100 ) + '%" y2="' + ( endY / bgHeight * 100 ) + '%">'
+ ];
+
+ // Convert to percentage along the SVG gradient line and add to the stops list
+ for( i = 0; i < stopCount; i++ ) {
+ svg.push(
+ '<stop offset="' + ( stopPx[ i ] / lineLength ) +
+ '" stop-color="' + stopsInfo[i].color.colorValue( el ) +
+ '" stop-opacity="' + stopsInfo[i].color.alpha() + '"/>'
+ );
+ }
+
+ svg.push(
+ '</linearGradient>' +
+ '</defs>' +
+ '<rect width="100%" height="100%" fill="url(#g)"/>' +
+ '</svg>'
+ );
+
+ return svg.join( '' );
+ },
+
+ destroy: function() {
+ this.parent.setBackgroundLayer( this.bgLayerZIndex );
+ }
+
+} );
+/**
+ * Renderer for border-image
+ * @constructor
+ * @param {Element} el The target element
+ * @param {Object} styleInfos The StyleInfo objects
+ * @param {PIE.RootRenderer} parent
+ */
+PIE.IE9BorderImageRenderer = PIE.RendererBase.newRenderer( {
+
+ REPEAT: 'repeat',
+ STRETCH: 'stretch',
+ ROUND: 'round',
+
+ bgLayerZIndex: 0,
+
+ needsUpdate: function() {
+ return this.styleInfos.borderImageInfo.changed();
+ },
+
+ isActive: function() {
+ return this.styleInfos.borderImageInfo.isActive();
+ },
+
+ draw: function() {
+ var me = this,
+ props = me.styleInfos.borderImageInfo.getProps(),
+ borderProps = me.styleInfos.borderInfo.getProps(),
+ bounds = me.boundsInfo.getBounds(),
+ repeat = props.repeat,
+ repeatH = repeat.h,
+ repeatV = repeat.v,
+ el = me.targetElement,
+ isAsync = 0;
+
+ PIE.Util.withImageSize( props.src, function( imgSize ) {
+ var elW = bounds.w,
+ elH = bounds.h,
+ imgW = imgSize.w,
+ imgH = imgSize.h,
+
+ // The image cannot be referenced as a URL directly in the SVG because IE9 throws a strange
+ // security exception (perhaps due to cross-origin policy within data URIs?) Therefore we
+ // work around this by converting the image data into a data URI itself using a transient
+ // canvas. This unfortunately requires the border-image src to be within the same domain,
+ // which isn't a limitation in true border-image, so we need to try and find a better fix.
+ imgSrc = me.imageToDataURI( props.src, imgW, imgH ),
+
+ REPEAT = me.REPEAT,
+ STRETCH = me.STRETCH,
+ ROUND = me.ROUND,
+ ceil = Math.ceil,
+
+ zero = PIE.getLength( '0' ),
+ widths = props.widths || ( borderProps ? borderProps.widths : { 't': zero, 'r': zero, 'b': zero, 'l': zero } ),
+ widthT = widths['t'].pixels( el ),
+ widthR = widths['r'].pixels( el ),
+ widthB = widths['b'].pixels( el ),
+ widthL = widths['l'].pixels( el ),
+ slices = props.slice,
+ sliceT = slices['t'].pixels( el ),
+ sliceR = slices['r'].pixels( el ),
+ sliceB = slices['b'].pixels( el ),
+ sliceL = slices['l'].pixels( el ),
+ centerW = elW - widthL - widthR,
+ middleH = elH - widthT - widthB,
+ imgCenterW = imgW - sliceL - sliceR,
+ imgMiddleH = imgH - sliceT - sliceB,
+
+ // Determine the size of each tile - 'round' is handled below
+ tileSizeT = repeatH === STRETCH ? centerW : imgCenterW * widthT / sliceT,
+ tileSizeR = repeatV === STRETCH ? middleH : imgMiddleH * widthR / sliceR,
+ tileSizeB = repeatH === STRETCH ? centerW : imgCenterW * widthB / sliceB,
+ tileSizeL = repeatV === STRETCH ? middleH : imgMiddleH * widthL / sliceL,
+
+ svg,
+ patterns = [],
+ rects = [],
+ i = 0;
+
+ // For 'round', subtract from each tile's size enough so that they fill the space a whole number of times
+ if (repeatH === ROUND) {
+ tileSizeT -= (tileSizeT - (centerW % tileSizeT || tileSizeT)) / ceil(centerW / tileSizeT);
+ tileSizeB -= (tileSizeB - (centerW % tileSizeB || tileSizeB)) / ceil(centerW / tileSizeB);
+ }
+ if (repeatV === ROUND) {
+ tileSizeR -= (tileSizeR - (middleH % tileSizeR || tileSizeR)) / ceil(middleH / tileSizeR);
+ tileSizeL -= (tileSizeL - (middleH % tileSizeL || tileSizeL)) / ceil(middleH / tileSizeL);
+ }
+
+
+ // Build the SVG for the border-image rendering. Add each piece as a pattern, which is then stretched
+ // or repeated as the fill of a rect of appropriate size.
+ svg = [
+ '<svg width="' + elW + '" height="' + elH + '" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">'
+ ];
+
+ function addImage( x, y, w, h, cropX, cropY, cropW, cropH, tileW, tileH ) {
+ patterns.push(
+ '<pattern patternUnits="userSpaceOnUse" id="pattern' + i + '" ' +
+ 'x="' + (repeatH === REPEAT ? x + w / 2 - tileW / 2 : x) + '" ' +
+ 'y="' + (repeatV === REPEAT ? y + h / 2 - tileH / 2 : y) + '" ' +
+ 'width="' + tileW + '" height="' + tileH + '">' +
+ '<svg width="' + tileW + '" height="' + tileH + '" viewBox="' + cropX + ' ' + cropY + ' ' + cropW + ' ' + cropH + '" preserveAspectRatio="none">' +
+ '<image xlink:href="' + imgSrc + '" x="0" y="0" width="' + imgW + '" height="' + imgH + '" />' +
+ '</svg>' +
+ '</pattern>'
+ );
+ rects.push(
+ '<rect x="' + x + '" y="' + y + '" width="' + w + '" height="' + h + '" fill="url(#pattern' + i + ')" />'
+ );
+ i++;
+ }
+ addImage( 0, 0, widthL, widthT, 0, 0, sliceL, sliceT, widthL, widthT ); // top left
+ addImage( widthL, 0, centerW, widthT, sliceL, 0, imgCenterW, sliceT, tileSizeT, widthT ); // top center
+ addImage( elW - widthR, 0, widthR, widthT, imgW - sliceR, 0, sliceR, sliceT, widthR, widthT ); // top right
+ addImage( 0, widthT, widthL, middleH, 0, sliceT, sliceL, imgMiddleH, widthL, tileSizeL ); // middle left
+ if ( props.fill ) { // center fill
+ addImage( widthL, widthT, centerW, middleH, sliceL, sliceT, imgCenterW, imgMiddleH,
+ tileSizeT || tileSizeB || imgCenterW, tileSizeL || tileSizeR || imgMiddleH );
+ }
+ addImage( elW - widthR, widthT, widthR, middleH, imgW - sliceR, sliceT, sliceR, imgMiddleH, widthR, tileSizeR ); // middle right
+ addImage( 0, elH - widthB, widthL, widthB, 0, imgH - sliceB, sliceL, sliceB, widthL, widthB ); // bottom left
+ addImage( widthL, elH - widthB, centerW, widthB, sliceL, imgH - sliceB, imgCenterW, sliceB, tileSizeB, widthB ); // bottom center
+ addImage( elW - widthR, elH - widthB, widthR, widthB, imgW - sliceR, imgH - sliceB, sliceR, sliceB, widthR, widthB ); // bottom right
+
+ svg.push(
+ '<defs>' +
+ patterns.join('\n') +
+ '</defs>' +
+ rects.join('\n') +
+ '</svg>'
+ );
+
+ me.parent.setBackgroundLayer( me.bgLayerZIndex, 'url(data:image/svg+xml,' + escape( svg.join( '' ) ) + ') no-repeat border-box border-box' );
+
+ // If the border-image's src wasn't immediately available, the SVG for its background layer
+ // will have been created asynchronously after the main element's update has finished; we'll
+ // therefore need to force the root renderer to sync to the final background once finished.
+ if( isAsync ) {
+ me.parent.finishUpdate();
+ }
+ }, me );
+
+ isAsync = 1;
+ },
+
+ /**
+ * Convert a given image to a data URI
+ */
+ imageToDataURI: (function() {
+ var uris = {};
+ return function( src, width, height ) {
+ var uri = uris[ src ],
+ image, canvas;
+ if ( !uri ) {
+ image = new Image();
+ canvas = doc.createElement( 'canvas' );
+ image.src = src;
+ canvas.width = width;
+ canvas.height = height;
+ canvas.getContext( '2d' ).drawImage( image, 0, 0 );
+ uri = uris[ src ] = canvas.toDataURL();
+ }
+ return uri;
+ }
+ })(),
+
+ prepareUpdate: PIE.BorderImageRenderer.prototype.prepareUpdate,
+
+ destroy: function() {
+ var me = this,
+ rs = me.targetElement.runtimeStyle;
+ me.parent.setBackgroundLayer( me.bgLayerZIndex );
+ rs.borderColor = rs.borderStyle = rs.borderWidth = '';
+ }
+
+} );
+
+PIE.Element = (function() {
+
+ var wrappers = {},
+ lazyInitCssProp = PIE.CSS_PREFIX + 'lazy-init',
+ pollCssProp = PIE.CSS_PREFIX + 'poll',
+ trackActiveCssProp = PIE.CSS_PREFIX + 'track-active',
+ trackHoverCssProp = PIE.CSS_PREFIX + 'track-hover',
+ hoverClass = PIE.CLASS_PREFIX + 'hover',
+ activeClass = PIE.CLASS_PREFIX + 'active',
+ focusClass = PIE.CLASS_PREFIX + 'focus',
+ firstChildClass = PIE.CLASS_PREFIX + 'first-child',
+ ignorePropertyNames = { 'background':1, 'bgColor':1, 'display': 1 },
+ classNameRegExes = {},
+ dummyArray = [];
+
+
+ function addClass( el, className ) {
+ el.className += ' ' + className;
+ }
+
+ function removeClass( el, className ) {
+ var re = classNameRegExes[ className ] ||
+ ( classNameRegExes[ className ] = new RegExp( '\\b' + className + '\\b', 'g' ) );
+ el.className = el.className.replace( re, '' );
+ }
+
+ function delayAddClass( el, className /*, className2*/ ) {
+ var classes = dummyArray.slice.call( arguments, 1 ),
+ i = classes.length;
+ setTimeout( function() {
+ if( el ) {
+ while( i-- ) {
+ addClass( el, classes[ i ] );
+ }
+ }
+ }, 0 );
+ }
+
+ function delayRemoveClass( el, className /*, className2*/ ) {
+ var classes = dummyArray.slice.call( arguments, 1 ),
+ i = classes.length;
+ setTimeout( function() {
+ if( el ) {
+ while( i-- ) {
+ removeClass( el, classes[ i ] );
+ }
+ }
+ }, 0 );
+ }
+
+
+
+ function Element( el ) {
+ var renderers,
+ rootRenderer,
+ boundsInfo = new PIE.BoundsInfo( el ),
+ styleInfos,
+ styleInfosArr,
+ initializing,
+ initialized,
+ eventsAttached,
+ eventListeners = [],
+ delayed,
+ destroyed,
+ poll;
+
+ /**
+ * Initialize PIE for this element.
+ */
+ function init() {
+ if( !initialized ) {
+ var docEl,
+ bounds,
+ ieDocMode = PIE.ieDocMode,
+ cs = el.currentStyle,
+ lazy = cs.getAttribute( lazyInitCssProp ) === 'true',
+ trackActive = cs.getAttribute( trackActiveCssProp ) !== 'false',
+ trackHover = cs.getAttribute( trackHoverCssProp ) !== 'false',
+ childRenderers;
+
+ // Polling for size/position changes: default to on in IE8, off otherwise, overridable by -pie-poll
+ poll = cs.getAttribute( pollCssProp );
+ poll = ieDocMode > 7 ? poll !== 'false' : poll === 'true';
+
+ // Force layout so move/resize events will fire. Set this as soon as possible to avoid layout changes
+ // after load, but make sure it only gets called the first time through to avoid recursive calls to init().
+ if( !initializing ) {
+ initializing = 1;
+ el.runtimeStyle.zoom = 1;
+ initFirstChildPseudoClass();
+ }
+
+ boundsInfo.lock();
+
+ // If the -pie-lazy-init:true flag is set, check if the element is outside the viewport and if so, delay initialization
+ if( lazy && ( bounds = boundsInfo.getBounds() ) && ( docEl = doc.documentElement || doc.body ) &&
+ ( bounds.y > docEl.clientHeight || bounds.x > docEl.clientWidth || bounds.y + bounds.h < 0 || bounds.x + bounds.w < 0 ) ) {
+ if( !delayed ) {
+ delayed = 1;
+ PIE.OnScroll.observe( init );
+ }
+ } else {
+ initialized = 1;
+ delayed = initializing = 0;
+ PIE.OnScroll.unobserve( init );
+
+ // Create the style infos and renderers
+ if ( ieDocMode === 9 ) {
+ styleInfos = {
+ backgroundInfo: new PIE.BackgroundStyleInfo( el ),
+ borderImageInfo: new PIE.BorderImageStyleInfo( el ),
+ borderInfo: new PIE.BorderStyleInfo( el )
+ };
+ styleInfosArr = [
+ styleInfos.backgroundInfo,
+ styleInfos.borderImageInfo
+ ];
+ rootRenderer = new PIE.IE9RootRenderer( el, boundsInfo, styleInfos );
+ childRenderers = [
+ new PIE.IE9BackgroundRenderer( el, boundsInfo, styleInfos, rootRenderer ),
+ new PIE.IE9BorderImageRenderer( el, boundsInfo, styleInfos, rootRenderer )
+ ];
+ } else {
+
+ styleInfos = {
+ backgroundInfo: new PIE.BackgroundStyleInfo( el ),
+ borderInfo: new PIE.BorderStyleInfo( el ),
+ borderImageInfo: new PIE.BorderImageStyleInfo( el ),
+ borderRadiusInfo: new PIE.BorderRadiusStyleInfo( el ),
+ boxShadowInfo: new PIE.BoxShadowStyleInfo( el ),
+ visibilityInfo: new PIE.VisibilityStyleInfo( el )
+ };
+ styleInfosArr = [
+ styleInfos.backgroundInfo,
+ styleInfos.borderInfo,
+ styleInfos.borderImageInfo,
+ styleInfos.borderRadiusInfo,
+ styleInfos.boxShadowInfo,
+ styleInfos.visibilityInfo
+ ];
+ rootRenderer = new PIE.RootRenderer( el, boundsInfo, styleInfos );
+ childRenderers = [
+ new PIE.BoxShadowOutsetRenderer( el, boundsInfo, styleInfos, rootRenderer ),
+ new PIE.BackgroundRenderer( el, boundsInfo, styleInfos, rootRenderer ),
+ //new PIE.BoxShadowInsetRenderer( el, boundsInfo, styleInfos, rootRenderer ),
+ new PIE.BorderRenderer( el, boundsInfo, styleInfos, rootRenderer ),
+ new PIE.BorderImageRenderer( el, boundsInfo, styleInfos, rootRenderer )
+ ];
+ if( el.tagName === 'IMG' ) {
+ childRenderers.push( new PIE.ImgRenderer( el, boundsInfo, styleInfos, rootRenderer ) );
+ }
+ rootRenderer.childRenderers = childRenderers; // circular reference, can't pass in constructor; TODO is there a cleaner way?
+ }
+ renderers = [ rootRenderer ].concat( childRenderers );
+
+ // Add property change listeners to ancestors if requested
+ initAncestorEventListeners();
+
+ // Add to list of polled elements in IE8
+ if( poll ) {
+ PIE.Heartbeat.observe( update );
+ PIE.Heartbeat.run();
+ }
+
+ // Trigger rendering
+ update( 1 );
+ }
+
+ if( !eventsAttached ) {
+ eventsAttached = 1;
+ if( ieDocMode < 9 ) {
+ addListener( el, 'onmove', handleMoveOrResize );
+ }
+ addListener( el, 'onresize', handleMoveOrResize );
+ addListener( el, 'onpropertychange', propChanged );
+ if( trackHover ) {
+ addListener( el, 'onmouseenter', mouseEntered );
+ }
+ if( trackHover || trackActive ) {
+ addListener( el, 'onmouseleave', mouseLeft );
+ }
+ if( trackActive ) {
+ addListener( el, 'onmousedown', mousePressed );
+ }
+ if( el.tagName in PIE.focusableElements ) {
+ addListener( el, 'onfocus', focused );
+ addListener( el, 'onblur', blurred );
+ }
+ PIE.OnResize.observe( handleMoveOrResize );
+
+ PIE.OnUnload.observe( removeEventListeners );
+ }
+
+ boundsInfo.unlock();
+ }
+ }
+
+
+
+
+ /**
+ * Event handler for onmove and onresize events. Invokes update() only if the element's
+ * bounds have previously been calculated, to prevent multiple runs during page load when
+ * the element has no initial CSS3 properties.
+ */
+ function handleMoveOrResize() {
+ if( boundsInfo && boundsInfo.hasBeenQueried() ) {
+ update();
+ }
+ }
+
+
+ /**
+ * Update position and/or size as necessary. Both move and resize events call
+ * this rather than the updatePos/Size functions because sometimes, particularly
+ * during page load, one will fire but the other won't.
+ */
+ function update( force ) {
+ if( !destroyed ) {
+ if( initialized ) {
+ var i, len = renderers.length;
+
+ lockAll();
+ for( i = 0; i < len; i++ ) {
+ renderers[i].prepareUpdate();
+ }
+ if( force || boundsInfo.positionChanged() ) {
+ /* TODO just using getBoundingClientRect (used internally by BoundsInfo) for detecting
+ position changes may not always be accurate; it's possible that
+ an element will actually move relative to its positioning parent, but its position
+ relative to the viewport will stay the same. Need to come up with a better way to
+ track movement. The most accurate would be the same logic used in RootRenderer.updatePos()
+ but that is a more expensive operation since it does some DOM walking, and we want this
+ check to be as fast as possible. */
+ for( i = 0; i < len; i++ ) {
+ renderers[i].updatePos();
+ }
+ }
+ if( force || boundsInfo.sizeChanged() ) {
+ for( i = 0; i < len; i++ ) {
+ renderers[i].updateSize();
+ }
+ }
+ rootRenderer.finishUpdate();
+ unlockAll();
+ }
+ else if( !initializing ) {
+ init();
+ }
+ }
+ }
+
+ /**
+ * Handle property changes to trigger update when appropriate.
+ */
+ function propChanged() {
+ var i, len = renderers.length,
+ renderer,
+ e = event;
+
+ // Some elements like <table> fire onpropertychange events for old-school background properties
+ // ('background', 'bgColor') when runtimeStyle background properties are changed, which
+ // results in an infinite loop; therefore we filter out those property names. Also, 'display'
+ // is ignored because size calculations don't work correctly immediately when its onpropertychange
+ // event fires, and because it will trigger an onresize event anyway.
+ if( !destroyed && !( e && e.propertyName in ignorePropertyNames ) ) {
+ if( initialized ) {
+ lockAll();
+ for( i = 0; i < len; i++ ) {
+ renderers[i].prepareUpdate();
+ }
+ for( i = 0; i < len; i++ ) {
+ renderer = renderers[i];
+ // Make sure position is synced if the element hasn't already been rendered.
+ // TODO this feels sloppy - look into merging propChanged and update functions
+ if( !renderer.isPositioned ) {
+ renderer.updatePos();
+ }
+ if( renderer.needsUpdate() ) {
+ renderer.updateProps();
+ }
+ }
+ rootRenderer.finishUpdate();
+ unlockAll();
+ }
+ else if( !initializing ) {
+ init();
+ }
+ }
+ }
+
+
+ /**
+ * Handle mouseenter events. Adds a custom class to the element to allow IE6 to add
+ * hover styles to non-link elements, and to trigger a propertychange update.
+ */
+ function mouseEntered() {
+ //must delay this because the mouseenter event fires before the :hover styles are added.
+ delayAddClass( el, hoverClass );
+ }
+
+ /**
+ * Handle mouseleave events
+ */
+ function mouseLeft() {
+ //must delay this because the mouseleave event fires before the :hover styles are removed.
+ delayRemoveClass( el, hoverClass, activeClass );
+ }
+
+ /**
+ * Handle mousedown events. Adds a custom class to the element to allow IE6 to add
+ * active styles to non-link elements, and to trigger a propertychange update.
+ */
+ function mousePressed() {
+ //must delay this because the mousedown event fires before the :active styles are added.
+ delayAddClass( el, activeClass );
+
+ // listen for mouseups on the document; can't just be on the element because the user might
+ // have dragged out of the element while the mouse button was held down
+ PIE.OnMouseup.observe( mouseReleased );
+ }
+
+ /**
+ * Handle mouseup events
+ */
+ function mouseReleased() {
+ //must delay this because the mouseup event fires before the :active styles are removed.
+ delayRemoveClass( el, activeClass );
+
+ PIE.OnMouseup.unobserve( mouseReleased );
+ }
+
+ /**
+ * Handle focus events. Adds a custom class to the element to trigger a propertychange update.
+ */
+ function focused() {
+ //must delay this because the focus event fires before the :focus styles are added.
+ delayAddClass( el, focusClass );
+ }
+
+ /**
+ * Handle blur events
+ */
+ function blurred() {
+ //must delay this because the blur event fires before the :focus styles are removed.
+ delayRemoveClass( el, focusClass );
+ }
+
+
+ /**
+ * Handle property changes on ancestors of the element; see initAncestorEventListeners()
+ * which adds these listeners as requested with the -pie-watch-ancestors CSS property.
+ */
+ function ancestorPropChanged() {
+ var name = event.propertyName;
+ if( name === 'className' || name === 'id' ) {
+ propChanged();
+ }
+ }
+
+ function lockAll() {
+ boundsInfo.lock();
+ for( var i = styleInfosArr.length; i--; ) {
+ styleInfosArr[i].lock();
+ }
+ }
+
+ function unlockAll() {
+ for( var i = styleInfosArr.length; i--; ) {
+ styleInfosArr[i].unlock();
+ }
+ boundsInfo.unlock();
+ }
+
+
+ function addListener( targetEl, type, handler ) {
+ targetEl.attachEvent( type, handler );
+ eventListeners.push( [ targetEl, type, handler ] );
+ }
+
+ /**
+ * Remove all event listeners from the element and any monitored ancestors.
+ */
+ function removeEventListeners() {
+ if (eventsAttached) {
+ var i = eventListeners.length,
+ listener;
+
+ while( i-- ) {
+ listener = eventListeners[ i ];
+ listener[ 0 ].detachEvent( listener[ 1 ], listener[ 2 ] );
+ }
+
+ PIE.OnUnload.unobserve( removeEventListeners );
+ eventsAttached = 0;
+ eventListeners = [];
+ }
+ }
+
+
+ /**
+ * Clean everything up when the behavior is removed from the element, or the element
+ * is manually destroyed.
+ */
+ function destroy() {
+ if( !destroyed ) {
+ var i, len;
+
+ removeEventListeners();
+
+ destroyed = 1;
+
+ // destroy any active renderers
+ if( renderers ) {
+ for( i = 0, len = renderers.length; i < len; i++ ) {
+ renderers[i].finalized = 1;
+ renderers[i].destroy();
+ }
+ }
+
+ // Remove from list of polled elements in IE8
+ if( poll ) {
+ PIE.Heartbeat.unobserve( update );
+ }
+ // Stop onresize listening
+ PIE.OnResize.unobserve( update );
+
+ // Kill references
+ renderers = boundsInfo = styleInfos = styleInfosArr = el = null;
+ }
+ }
+
+
+ /**
+ * If requested via the custom -pie-watch-ancestors CSS property, add onpropertychange and
+ * other event listeners to ancestor(s) of the element so we can pick up style changes
+ * based on CSS rules using descendant selectors.
+ */
+ function initAncestorEventListeners() {
+ var watch = el.currentStyle.getAttribute( PIE.CSS_PREFIX + 'watch-ancestors' ),
+ i, a;
+ if( watch ) {
+ watch = parseInt( watch, 10 );
+ i = 0;
+ a = el.parentNode;
+ while( a && ( watch === 'NaN' || i++ < watch ) ) {
+ addListener( a, 'onpropertychange', ancestorPropChanged );
+ addListener( a, 'onmouseenter', mouseEntered );
+ addListener( a, 'onmouseleave', mouseLeft );
+ addListener( a, 'onmousedown', mousePressed );
+ if( a.tagName in PIE.focusableElements ) {
+ addListener( a, 'onfocus', focused );
+ addListener( a, 'onblur', blurred );
+ }
+ a = a.parentNode;
+ }
+ }
+ }
+
+
+ /**
+ * If the target element is a first child, add a pie_first-child class to it. This allows using
+ * the added class as a workaround for the fact that PIE's rendering element breaks the :first-child
+ * pseudo-class selector.
+ */
+ function initFirstChildPseudoClass() {
+ var tmpEl = el,
+ isFirst = 1;
+ while( tmpEl = tmpEl.previousSibling ) {
+ if( tmpEl.nodeType === 1 ) {
+ isFirst = 0;
+ break;
+ }
+ }
+ if( isFirst ) {
+ addClass( el, firstChildClass );
+ }
+ }
+
+
+ // These methods are all already bound to this instance so there's no need to wrap them
+ // in a closure to maintain the 'this' scope object when calling them.
+ this.init = init;
+ this.update = update;
+ this.destroy = destroy;
+ this.el = el;
+ }
+
+ Element.getInstance = function( el ) {
+ var id = PIE.Util.getUID( el );
+ return wrappers[ id ] || ( wrappers[ id ] = new Element( el ) );
+ };
+
+ Element.destroy = function( el ) {
+ var id = PIE.Util.getUID( el ),
+ wrapper = wrappers[ id ];
+ if( wrapper ) {
+ wrapper.destroy();
+ delete wrappers[ id ];
+ }
+ };
+
+ Element.destroyAll = function() {
+ var els = [], wrapper;
+ if( wrappers ) {
+ for( var w in wrappers ) {
+ if( wrappers.hasOwnProperty( w ) ) {
+ wrapper = wrappers[ w ];
+ els.push( wrapper.el );
+ wrapper.destroy();
+ }
+ }
+ wrappers = {};
+ }
+ return els;
+ };
+
+ return Element;
+})();
+
+/*
+ * This file exposes the public API for invoking PIE.
+ */
+
+
+/**
+ * @property supportsVML
+ * True if the current IE browser environment has a functioning VML engine. Should be true
+ * in most IEs, but in rare cases may be false. If false, PIE will exit immediately when
+ * attached to an element; this property may be used for debugging or by external scripts
+ * to perform some special action when VML support is absent.
+ * @type {boolean}
+ */
+PIE[ 'supportsVML' ] = PIE.supportsVML;
+
+
+/**
+ * Programatically attach PIE to a single element.
+ * @param {Element} el
+ */
+PIE[ 'attach' ] = function( el ) {
+ if (PIE.ieDocMode < 10 && PIE.supportsVML) {
+ PIE.Element.getInstance( el ).init();
+ }
+};
+
+
+/**
+ * Programatically detach PIE from a single element.
+ * @param {Element} el
+ */
+PIE[ 'detach' ] = function( el ) {
+ PIE.Element.destroy( el );
+};
+
+
+} // if( !PIE )
+})(); \ No newline at end of file