- /**
- * DD_belatedPNG: Adds IE6 support: PNG images for CSS background-image and HTML <IMG/>.
- * Author: Drew Diller
- * Email: drew.diller@gmail.com
- * URL: http://www.dillerdesign.com/experiment/DD_belatedPNG/
- * Version: 0.0.8a
- * Licensed under the MIT License: http://dillerdesign.com/experiment/DD_belatedPNG/#license
- *
- * Example usage:
- * DD_belatedPNG.fix('.png_bg'); // argument is a CSS selector
- * DD_belatedPNG.fixPng( someNode ); // argument is an HTMLDomElement
- **/
- var DD_belatedPNG = {
- ns: "DD_belatedPNG",
- imgSize: {},
- delay: 10,
- nodesFixed: 0,
- createVmlNameSpace: function() {
- if (document.namespaces && !document.namespaces[this.ns]) {
- document.namespaces.add(this.ns, "urn:schemas-microsoft-com:vml")
- }
- },
- createVmlStyleSheet: function() {
- var b, a;
- b = document.createElement("style");
- b.setAttribute("media", "screen");
- document.documentElement.firstChild.insertBefore(b, document.documentElement.firstChild.firstChild);
- if (b.styleSheet) {
- b = b.styleSheet;
- b.addRule(this.ns + "\\:*", "{behavior:url(#default#VML)}");
- b.addRule(this.ns + "\\:shape", "position:absolute;");
- b.addRule("img." + this.ns + "_sizeFinder", "behavior:none; border:none; position:absolute; z-index:-1; top:-10000px; visibility:hidden;");
- this.screenStyleSheet = b;
- a = document.createElement("style");
- a.setAttribute("media", "print");
- document.documentElement.firstChild.insertBefore(a, document.documentElement.firstChild.firstChild);
- a = a.styleSheet;
- a.addRule(this.ns + "\\:*", "{display: none !important;}");
- a.addRule("img." + this.ns + "_sizeFinder", "{display: none !important;}")
- }
- },
- readPropertyChange: function() {
- var b, c, a;
- b = event.srcElement;
- if (!b.vmlInitiated) {
- return
- }
- if (event.propertyName.search("background") != -1 || event.propertyName.search("border") != -1) {
- DD_belatedPNG.applyVML(b)
- }
- if (event.propertyName == "style.display") {
- c = (b.currentStyle.display == "none") ? "none" : "block";
- for (a in b.vml) {
- if (b.vml.hasOwnProperty(a)) {
- b.vml[a].shape.style.display = c
- }
- }
- }
- if (event.propertyName.search("filter") != -1) {
- DD_belatedPNG.vmlOpacity(b)
- }
- },
- vmlOpacity: function(b) {
- if (b.currentStyle.filter.search("lpha") != -1) {
- var a = b.currentStyle.filter;
- a = parseInt(a.substring(a.lastIndexOf("=") + 1, a.lastIndexOf(")")), 10) / 100;
- b.vml.color.shape.style.filter = b.currentStyle.filter;
- b.vml.image.fill.opacity = a
- }
- },
- handlePseudoHover: function(a) {
- setTimeout(function() {
- DD_belatedPNG.applyVML(a)
- }, 1)
- },
- fix: function(a) {
- if (this.screenStyleSheet) {
- var c, b;
- c = a.split(",");
- for (b = 0; b < c.length; b++) {
- this.screenStyleSheet.addRule(c[b], "behavior:expression(DD_belatedPNG.fixPng(this))")
- }
- }
- },
- applyVML: function(a) {
- a.runtimeStyle.cssText = "";
- this.vmlFill(a);
- this.vmlOffsets(a);
- this.vmlOpacity(a);
- if (a.isImg) {
- this.copyImageBorders(a)
- }
- },
- attachHandlers: function(i) {
- var d, c, g, e, b, f;
- d = this;
- c = {
- resize: "vmlOffsets",
- move: "vmlOffsets"
- };
- if (i.nodeName == "A") {
- e = {
- mouseleave: "handlePseudoHover",
- mouseenter: "handlePseudoHover",
- focus: "handlePseudoHover",
- blur: "handlePseudoHover"
- };
- for (b in e) {
- if (e.hasOwnProperty(b)) {
- c[b] = e[b]
- }
- }
- }
- for (f in c) {
- if (c.hasOwnProperty(f)) {
- g = function() {
- d[c[f]](i)
- };
- i.attachEvent("on" + f, g)
- }
- }
- i.attachEvent("onpropertychange", this.readPropertyChange)
- },
- giveLayout: function(a) {
- a.style.zoom = 1;
- if (a.currentStyle.position == "static") {
- a.style.position = "relative"
- }
- },
- copyImageBorders: function(b) {
- var c, a;
- c = {
- borderStyle: true,
- borderWidth: true,
- borderColor: true
- };
- for (a in c) {
- if (c.hasOwnProperty(a)) {
- b.vml.color.shape.style[a] = b.currentStyle[a]
- }
- }
- },
- vmlFill: function(e) {
- if (!e.currentStyle) {
- return
- } else {
- var d, f, g, b, a, c;
- d = e.currentStyle
- }
- for (b in e.vml) {
- if (e.vml.hasOwnProperty(b)) {
- e.vml[b].shape.style.zIndex = d.zIndex
- }
- }
- e.runtimeStyle.backgroundColor = "";
- e.runtimeStyle.backgroundImage = "";
- f = true;
- if (d.backgroundImage != "none" || e.isImg) {
- if (!e.isImg) {
- e.vmlBg = d.backgroundImage;
- e.vmlBg = e.vmlBg.substr(5, e.vmlBg.lastIndexOf('")') - 5)
- } else {
- e.vmlBg = e.src
- }
- g = this;
- if (!g.imgSize[e.vmlBg]) {
- a = document.createElement("img");
- g.imgSize[e.vmlBg] = a;
- a.className = g.ns + "_sizeFinder";
- a.runtimeStyle.cssText = "behavior:none; position:absolute; left:-10000px; top:-10000px; border:none; margin:0; padding:0;";
- c = function() {
- this.width = this.offsetWidth;
- this.height = this.offsetHeight;
- g.vmlOffsets(e)
- };
- a.attachEvent("onload", c);
- a.src = e.vmlBg;
- a.removeAttribute("width");
- a.removeAttribute("height");
- document.body.insertBefore(a, document.body.firstChild)
- }
- e.vml.image.fill.src = e.vmlBg;
- f = false
- }
- e.vml.image.fill.on = !f;
- e.vml.image.fill.color = "none";
- e.vml.color.shape.style.backgroundColor = d.backgroundColor;
- e.runtimeStyle.backgroundImage = "none";
- e.runtimeStyle.backgroundColor = "transparent"
- },
- vmlOffsets: function(d) {
- var h, n, a, e, g, m, f, l, j, i, k;
- h = d.currentStyle;
- n = {
- W: d.clientWidth + 1,
- H: d.clientHeight + 1,
- w: this.imgSize[d.vmlBg].width,
- h: this.imgSize[d.vmlBg].height,
- L: d.offsetLeft,
- T: d.offsetTop,
- bLW: d.clientLeft,
- bTW: d.clientTop
- };
- a = (n.L + n.bLW == 1) ? 1 : 0;
- e = function(b, p, q, c, s, u) {
- b.coordsize = c + "," + s;
- b.coordorigin = u + "," + u;
- b.path = "m0,0l" + c + ",0l" + c + "," + s + "l0," + s + " xe";
- b.style.width = c + "px";
- b.style.height = s + "px";
- b.style.left = p + "px";
- b.style.top = q + "px"
- };
- e(d.vml.color.shape, (n.L + (d.isImg ? 0 : n.bLW)), (n.T + (d.isImg ? 0 : n.bTW)), (n.W - 1), (n.H - 1), 0);
- e(d.vml.image.shape, (n.L + n.bLW), (n.T + n.bTW), (n.W), (n.H), 1);
- g = {
- X: 0,
- Y: 0
- };
- if (d.isImg) {
- g.X = parseInt(h.paddingLeft, 10) + 1;
- g.Y = parseInt(h.paddingTop, 10) + 1
- } else {
- for (j in g) {
- if (g.hasOwnProperty(j)) {
- this.figurePercentage(g, n, j, h["backgroundPosition" + j])
- }
- }
- }
- d.vml.image.fill.position = (g.X / n.W) + "," + (g.Y / n.H);
- m = h.backgroundRepeat;
- f = {
- T: 1,
- R: n.W + a,
- B: n.H,
- L: 1 + a
- };
- l = {
- X: {
- b1: "L",
- b2: "R",
- d: "W"
- },
- Y: {
- b1: "T",
- b2: "B",
- d: "H"
- }
- };
- if (m != "repeat" || d.isImg) {
- i = {
- T: (g.Y),
- R: (g.X + n.w),
- B: (g.Y + n.h),
- L: (g.X)
- };
- if (m.search("repeat-") != -1) {
- k = m.split("repeat-")[1].toUpperCase();
- i[l[k].b1] = 1;
- i[l[k].b2] = n[l[k].d]
- }
- if (i.B > n.H) {
- i.B = n.H
- }
- d.vml.image.shape.style.clip = "rect(" + i.T + "px " + (i.R + a) + "px " + i.B + "px " + (i.L + a) + "px)"
- } else {
- d.vml.image.shape.style.clip = "rect(" + f.T + "px " + f.R + "px " + f.B + "px " + f.L + "px)"
- }
- },
- figurePercentage: function(d, c, f, a) {
- var b, e;
- e = true;
- b = (f == "X");
- switch (a) {
- case "left":
- case "top":
- d[f] = 0;
- break;
- case "center":
- d[f] = 0.5;
- break;
- case "right":
- case "bottom":
- d[f] = 1;
- break;
- default:
- if (a.search("%") != -1) {
- d[f] = parseInt(a, 10) / 100
- } else {
- e = false
- }
- }
- d[f] = Math.ceil(e ? ((c[b ? "W" : "H"] * d[f]) - (c[b ? "w" : "h"] * d[f])) : parseInt(a, 10));
- if (d[f] % 2 === 0) {
- d[f]++
- }
- return d[f]
- },
- fixPng: function(c) {
- c.style.behavior = "none";
- var g, b, f, a, d;
- if (c.nodeName == "BODY" || c.nodeName == "TD" || c.nodeName == "TR") {
- return
- }
- c.isImg = false;
- if (c.nodeName == "IMG") {
- if (c.src.toLowerCase().search(/\.png$/) != -1) {
- c.isImg = true;
- c.style.visibility = "hidden"
- } else {
- return
- }
- } else {
- if (c.currentStyle.backgroundImage.toLowerCase().search(".png") == -1) {
- return
- }
- }
- g = DD_belatedPNG;
- c.vml = {
- color: {},
- image: {}
- };
- b = {
- shape: {},
- fill: {}
- };
- for (a in c.vml) {
- if (c.vml.hasOwnProperty(a)) {
- for (d in b) {
- if (b.hasOwnProperty(d)) {
- f = g.ns + ":" + d;
- c.vml[a][d] = document.createElement(f)
- }
- }
- c.vml[a].shape.stroked = false;
- c.vml[a].shape.appendChild(c.vml[a].fill);
- c.parentNode.insertBefore(c.vml[a].shape, c)
- }
- }
- c.vml.image.shape.fillcolor = "none";
- c.vml.image.fill.type = "tile";
- c.vml.color.fill.on = false;
- g.attachHandlers(c);
- g.giveLayout(c);
- g.giveLayout(c.offsetParent);
- c.vmlInitiated = true;
- g.applyVML(c)
- }
- };
- try {
- document.execCommand("BackgroundImageCache", false, true)
- } catch (r) {}
- DD_belatedPNG.createVmlNameSpace();
- DD_belatedPNG.createVmlStyleSheet();