diff --git a/bootstrap-3.0.0/assets/js/holder.js b/bootstrap-3.0.0/assets/js/holder.js new file mode 100755 index 0000000000000000000000000000000000000000..f717054c3d18028c8a8be8bfa56241dc8c18adad --- /dev/null +++ b/bootstrap-3.0.0/assets/js/holder.js @@ -0,0 +1,419 @@ +/* + +Holder - 2.0 - client side image placeholders +(c) 2012-2013 Ivan Malopinsky / http://imsky.co + +Provided under the Apache 2.0 License: http://www.apache.org/licenses/LICENSE-2.0 +Commercial use requires attribution. + +*/ + +var Holder = Holder || {}; +(function (app, win) { + +var preempted = false, +fallback = false, +canvas = document.createElement('canvas'); + +//getElementsByClassName polyfill +document.getElementsByClassName||(document.getElementsByClassName=function(e){var t=document,n,r,i,s=[];if(t.querySelectorAll)return t.querySelectorAll("."+e);if(t.evaluate){r=".//*[contains(concat(' ', @class, ' '), ' "+e+" ')]",n=t.evaluate(r,t,null,0,null);while(i=n.iterateNext())s.push(i)}else{n=t.getElementsByTagName("*"),r=new RegExp("(^|\\s)"+e+"(\\s|$)");for(i=0;i= 0.75) { + text_height = Math.floor(text_height * 0.75 * (width/text_width)); + } + //Resetting font size if necessary + ctx.font = "bold " + (text_height * ratio) + "px " + font; + ctx.fillText(text, (width / 2), (height / 2), width); + return canvas.toDataURL("image/png"); +} + +function render(mode, el, holder, src) { + var dimensions = holder.dimensions, + theme = holder.theme, + text = holder.text ? decodeURIComponent(holder.text) : holder.text; + var dimensions_caption = dimensions.width + "x" + dimensions.height; + theme = (text ? extend(theme, { + text: text + }) : theme); + theme = (holder.font ? extend(theme, { + font: holder.font + }) : theme); + if (mode == "image") { + el.setAttribute("data-src", src); + el.setAttribute("alt", text ? text : theme.text ? theme.text + " [" + dimensions_caption + "]" : dimensions_caption); + if (fallback || !holder.auto) { + el.style.width = dimensions.width + "px"; + el.style.height = dimensions.height + "px"; + } + if (fallback) { + el.style.backgroundColor = theme.background; + } else { + el.setAttribute("src", draw(ctx, dimensions, theme, ratio)); + } + } else if (mode == "background") { + if (!fallback) { + el.style.backgroundImage = "url(" + draw(ctx, dimensions, theme, ratio) + ")"; + el.style.backgroundSize = dimensions.width + "px " + dimensions.height + "px"; + } + } else if (mode == "fluid") { + el.setAttribute("data-src", src); + el.setAttribute("alt", text ? text : theme.text ? theme.text + " [" + dimensions_caption + "]" : dimensions_caption); + if (dimensions.height.substr(-1) == "%") { + el.style.height = dimensions.height + } else { + el.style.height = dimensions.height + "px" + } + if (dimensions.width.substr(-1) == "%") { + el.style.width = dimensions.width + } else { + el.style.width = dimensions.width + "px" + } + if (el.style.display == "inline" || el.style.display == "") { + el.style.display = "block"; + } + if (fallback) { + el.style.backgroundColor = theme.background; + } else { + el.holderData = holder; + fluid_images.push(el); + fluid_update(el); + } + } +}; + +function fluid_update(element) { + var images; + if (element.nodeType == null) { + images = fluid_images; + } else { + images = [element] + } + for (i in images) { + var el = images[i] + if (el.holderData) { + var holder = el.holderData; + el.setAttribute("src", draw(ctx, { + height: el.clientHeight, + width: el.clientWidth + }, holder.theme, ratio)); + } + } +} + +function parse_flags(flags, options) { + + var ret = { + theme: settings.themes.gray + }, render = false; + + for (sl = flags.length, j = 0; j < sl; j++) { + var flag = flags[j]; + if (app.flags.dimensions.match(flag)) { + render = true; + ret.dimensions = app.flags.dimensions.output(flag); + } else if (app.flags.fluid.match(flag)) { + render = true; + ret.dimensions = app.flags.fluid.output(flag); + ret.fluid = true; + } else if (app.flags.colors.match(flag)) { + ret.theme = app.flags.colors.output(flag); + } else if (options.themes[flag]) { + //If a theme is specified, it will override custom colors + ret.theme = options.themes[flag]; + } else if (app.flags.text.match(flag)) { + ret.text = app.flags.text.output(flag); + } else if (app.flags.font.match(flag)) { + ret.font = app.flags.font.output(flag); + } else if (app.flags.auto.match(flag)) { + ret.auto = true; + } + } + + return render ? ret : false; + +}; + + + +if (!canvas.getContext) { + fallback = true; +} else { + if (canvas.toDataURL("image/png") + .indexOf("data:image/png") < 0) { + //Android doesn't support data URI + fallback = true; + } else { + var ctx = canvas.getContext("2d"); + } +} + +var dpr = 1, bsr = 1; + +if(!fallback){ + dpr = window.devicePixelRatio || 1, + bsr = ctx.webkitBackingStorePixelRatio || ctx.mozBackingStorePixelRatio || ctx.msBackingStorePixelRatio || ctx.oBackingStorePixelRatio || ctx.backingStorePixelRatio || 1; +} + +var ratio = dpr / bsr; + +var fluid_images = []; + +var settings = { + domain: "holder.js", + images: "img", + bgnodes: ".holderjs", + themes: { + "gray": { + background: "#eee", + foreground: "#aaa", + size: 12 + }, + "social": { + background: "#3a5a97", + foreground: "#fff", + size: 12 + }, + "industrial": { + background: "#434A52", + foreground: "#C2F200", + size: 12 + } + }, + stylesheet: ".holderjs-fluid {font-size:16px;font-weight:bold;text-align:center;font-family:sans-serif;margin:0}" +}; + + +app.flags = { + dimensions: { + regex: /^(\d+)x(\d+)$/, + output: function (val) { + var exec = this.regex.exec(val); + return { + width: +exec[1], + height: +exec[2] + } + } + }, + fluid: { + regex: /^([0-9%]+)x([0-9%]+)$/, + output: function (val) { + var exec = this.regex.exec(val); + return { + width: exec[1], + height: exec[2] + } + } + }, + colors: { + regex: /#([0-9a-f]{3,})\:#([0-9a-f]{3,})/i, + output: function (val) { + var exec = this.regex.exec(val); + return { + size: settings.themes.gray.size, + foreground: "#" + exec[2], + background: "#" + exec[1] + } + } + }, + text: { + regex: /text\:(.*)/, + output: function (val) { + return this.regex.exec(val)[1]; + } + }, + font: { + regex: /font\:(.*)/, + output: function (val) { + return this.regex.exec(val)[1]; + } + }, + auto: { + regex: /^auto$/ + } +} + +for (var flag in app.flags) { + if (!app.flags.hasOwnProperty(flag)) continue; + app.flags[flag].match = function (val) { + return val.match(this.regex) + } +} + +app.add_theme = function (name, theme) { + name != null && theme != null && (settings.themes[name] = theme); + return app; +}; + +app.add_image = function (src, el) { + var node = selector(el); + if (node.length) { + for (var i = 0, l = node.length; i < l; i++) { + var img = document.createElement("img") + img.setAttribute("data-src", src); + node[i].appendChild(img); + } + } + return app; +}; + +app.run = function (o) { + var options = extend(settings, o), + images = [], imageNodes = [], bgnodes = []; + + if(typeof(options.images) == "string"){ + imageNodes = selector(options.images); + } + else if (window.NodeList && options.images instanceof window.NodeList) { + imageNodes = options.images; + } else if (window.Node && options.images instanceof window.Node) { + imageNodes = [options.images]; + } + + if(typeof(options.bgnodes) == "string"){ + bgnodes = selector(options.bgnodes); + } else if (window.NodeList && options.elements instanceof window.NodeList) { + bgnodes = options.bgnodes; + } else if (window.Node && options.bgnodes instanceof window.Node) { + bgnodes = [options.bgnodes]; + } + + preempted = true; + + for (i = 0, l = imageNodes.length; i < l; i++) images.push(imageNodes[i]); + + var holdercss = document.getElementById("holderjs-style"); + if (!holdercss) { + holdercss = document.createElement("style"); + holdercss.setAttribute("id", "holderjs-style"); + holdercss.type = "text/css"; + document.getElementsByTagName("head")[0].appendChild(holdercss); + } + + if (!options.nocss) { + if (holdercss.styleSheet) { + holdercss.styleSheet.cssText += options.stylesheet; + } else { + holdercss.appendChild(document.createTextNode(options.stylesheet)); + } + } + + var cssregex = new RegExp(options.domain + "\/(.*?)\"?\\)"); + + for (var l = bgnodes.length, i = 0; i < l; i++) { + var src = window.getComputedStyle(bgnodes[i], null) + .getPropertyValue("background-image"); + var flags = src.match(cssregex); + var bgsrc = bgnodes[i].getAttribute("data-background-src"); + + if (flags) { + var holder = parse_flags(flags[1].split("/"), options); + if (holder) { + render("background", bgnodes[i], holder, src); + } + } + else if(bgsrc != null){ + var holder = parse_flags(bgsrc.substr(bgsrc.lastIndexOf(options.domain) + options.domain.length + 1) + .split("/"), options); + if(holder){ + render("background", bgnodes[i], holder, src); + } + } + } + + for (l = images.length, i = 0; i < l; i++) { + + var attr_src = attr_data_src = src = null; + + try{ + attr_src = images[i].getAttribute("src"); + attr_datasrc = images[i].getAttribute("data-src"); + }catch(e){} + + if (attr_datasrc == null && !! attr_src && attr_src.indexOf(options.domain) >= 0) { + src = attr_src; + } else if ( !! attr_datasrc && attr_datasrc.indexOf(options.domain) >= 0) { + src = attr_datasrc; + } + + if (src) { + var holder = parse_flags(src.substr(src.lastIndexOf(options.domain) + options.domain.length + 1) + .split("/"), options); + if (holder) { + if (holder.fluid) { + render("fluid", images[i], holder, src) + } else { + render("image", images[i], holder, src); + } + } + } + } + return app; +}; + +contentLoaded(win, function () { + if (window.addEventListener) { + window.addEventListener("resize", fluid_update, false); + window.addEventListener("orientationchange", fluid_update, false); + } else { + window.attachEvent("onresize", fluid_update) + } + preempted || app.run(); +}); + +if (typeof define === "function" && define.amd) { + define("Holder", [], function () { + return app; + }); +} + +})(Holder, window);