diff options
| author | Mark Otto <[email protected]> | 2013-12-14 15:38:21 -0800 |
|---|---|---|
| committer | Mark Otto <[email protected]> | 2013-12-14 15:38:21 -0800 |
| commit | a54dbfdf2a08ff04fc65f8e4f77ee5dc76bf4ef3 (patch) | |
| tree | 9b1c5697a731543a86711b016e1986ec1e81dad4 /docs-assets/js/holder.js | |
| parent | 80e86442308b2cc86ba948de87e854057933e3ab (diff) | |
| parent | f1869771bc8b8e8a6c7a98385ec58e0bf0d2d98e (diff) | |
| download | bootstrap-a54dbfdf2a08ff04fc65f8e4f77ee5dc76bf4ef3.tar.xz bootstrap-a54dbfdf2a08ff04fc65f8e4f77ee5dc76bf4ef3.zip | |
Merge branch 'master' into pr/10951
Conflicts:
dist/css/bootstrap.min.css
less/modals.less
Diffstat (limited to 'docs-assets/js/holder.js')
| -rw-r--r--[-rwxr-xr-x] | docs-assets/js/holder.js | 453 |
1 files changed, 267 insertions, 186 deletions
diff --git a/docs-assets/js/holder.js b/docs-assets/js/holder.js index f717054c3..85f0441b0 100755..100644 --- a/docs-assets/js/holder.js +++ b/docs-assets/js/holder.js @@ -1,9 +1,9 @@ /* -Holder - 2.0 - client side image placeholders +Holder - 2.2 - 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 +Provided under the MIT License. Commercial use requires attribution. */ @@ -14,35 +14,164 @@ var Holder = Holder || {}; var preempted = false, fallback = false, canvas = document.createElement('canvas'); +var dpr = 1, bsr = 1; +var resizable_images = []; + +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"); + } +} + +if(!fallback){ + dpr = window.devicePixelRatio || 1, + bsr = ctx.webkitBackingStorePixelRatio || ctx.mozBackingStorePixelRatio || ctx.msBackingStorePixelRatio || ctx.oBackingStorePixelRatio || ctx.backingStorePixelRatio || 1; +} + +var ratio = dpr / bsr; + +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 + }, + "sky": { + background: "#0D8FDB", + foreground: "#fff", + size: 12 + }, + "vine": { + background: "#39DBAC", + foreground: "#1E292C", + size: 12 + }, + "lava": { + background: "#F8591A", + foreground: "#1C2846", + size: 12 + } + }, + stylesheet: "" +}; +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$/ + }, + textmode: { + regex: /textmode\:(.*)/, + output: function(val){ + return this.regex.exec(val)[1]; + } + } +} //getElementsByClassName polyfill document.getElementsByClassName||(document.getElementsByClassName=function(e){var t=document,n,r,i,s=[];if(t.querySelectorAll)return t.querySelectorAll("."+e);if(t.evaluate){r=".//*[contains(concat(' ', @class, ' '), ' "+e+" ')]",n=t.evaluate(r,t,null,0,null);while(i=n.iterateNext())s.push(i)}else{n=t.getElementsByTagName("*"),r=new RegExp("(^|\\s)"+e+"(\\s|$)");for(i=0;i<n.length;i++)r.test(n[i].className)&&s.push(n[i])}return s}) //getComputedStyle polyfill -window.getComputedStyle||(window.getComputedStyle=function(e,t){return this.el=e,this.getPropertyValue=function(t){var n=/(\-([a-z]){1})/g;return t=="float"&&(t="styleFloat"),n.test(t)&&(t=t.replace(n,function(){return arguments[2].toUpperCase()})),e.currentStyle[t]?e.currentStyle[t]:null},this}) +window.getComputedStyle||(window.getComputedStyle=function(e){return this.el=e,this.getPropertyValue=function(t){var n=/(\-([a-z]){1})/g;return t=="float"&&(t="styleFloat"),n.test(t)&&(t=t.replace(n,function(){return arguments[2].toUpperCase()})),e.currentStyle[t]?e.currentStyle[t]:null},this}) //http://javascript.nwbox.com/ContentLoaded by Diego Perini with modifications -function contentLoaded(n,t){var l="complete",s="readystatechange",u=!1,h=u,c=!0,i=n.document,a=i.documentElement,e=i.addEventListener?"addEventListener":"attachEvent",v=i.addEventListener?"removeEventListener":"detachEvent",f=i.addEventListener?"":"on",r=function(e){(e.type!=s||i.readyState==l)&&((e.type=="load"?n:i)[v](f+e.type,r,u),!h&&(h=!0)&&t.call(n,null))},o=function(){try{a.doScroll("left")}catch(n){setTimeout(o,50);return}r("poll")};if(i.readyState==l)t.call(n,"lazy");else{if(i.createEventObject&&a.doScroll){try{c=!n.frameElement}catch(y){}c&&o()}i[e](f+"DOMContentLoaded",r,u),i[e](f+s,r,u),n[e](f+"load",r,u)}}; +function contentLoaded(n,t){var l="complete",s="readystatechange",u=!1,h=u,c=!0,i=n.document,a=i.documentElement,e=i.addEventListener?"addEventListener":"attachEvent",v=i.addEventListener?"removeEventListener":"detachEvent",f=i.addEventListener?"":"on",r=function(e){(e.type!=s||i.readyState==l)&&((e.type=="load"?n:i)[v](f+e.type,r,u),!h&&(h=!0)&&t.call(n,null))},o=function(){try{a.doScroll("left")}catch(n){setTimeout(o,50);return}r("poll")};if(i.readyState==l)t.call(n,"lazy");else{if(i.createEventObject&&a.doScroll){try{c=!n.frameElement}catch(y){}c&&o()}i[e](f+"DOMContentLoaded",r,u),i[e](f+s,r,u),n[e](f+"load",r,u)}} //https://gist.github.com/991057 by Jed Schmidt with modifications function selector(a){ a=a.match(/^(\W)?(.*)/);var b=document["getElement"+(a[1]?a[1]=="#"?"ById":"sByClassName":"sByTagName")](a[2]); - var ret=[]; b!=null&&(b.length?ret=b:b.length==0?ret=b:ret=[b]); return ret; + var ret=[]; b!==null&&(b.length?ret=b:b.length===0?ret=b:ret=[b]); return ret; } //shallow object property extend -function extend(a,b){var c={};for(var d in a)c[d]=a[d];for(var e in b)c[e]=b[e];return c} +function extend(a,b){ + var c={}; + for(var i in a){ + if(a.hasOwnProperty(i)){ + c[i]=a[i]; + } + } + for(var i in b){ + if(b.hasOwnProperty(i)){ + c[i]=b[i]; + } + } + return c +} //hasOwnProperty polyfill if (!Object.prototype.hasOwnProperty) - Object.prototype.hasOwnProperty = function(prop) { + /*jshint -W001, -W103 */ + Object.prototype.hasOwnProperty = function(prop) { var proto = this.__proto__ || this.constructor.prototype; return (prop in this) && (!(prop in proto) || proto[prop] !== this[prop]); } + /*jshint +W001, +W103 */ function text_size(width, height, template) { - height = parseInt(height,10); - width = parseInt(width,10); + height = parseInt(height, 10); + width = parseInt(width, 10); var bigSide = Math.max(height, width) var smallSide = Math.min(height, width) var scale = 1 / 12; @@ -52,7 +181,15 @@ function text_size(width, height, template) { } } -function draw(ctx, dimensions, template, ratio) { +function draw(args) { + var ctx = args.ctx; + var dimensions = args.dimensions; + var template = args.template; + var ratio = args.ratio; + var holder = args.holder; + var literal = holder.textmode == "literal"; + var exact = holder.textmode == "exact"; + var ts = text_size(dimensions.width, dimensions.height, template); var text_height = ts.height; var width = dimensions.width * ratio, @@ -67,9 +204,17 @@ function draw(ctx, dimensions, template, ratio) { ctx.fillStyle = template.foreground; ctx.font = "bold " + text_height + "px " + font; var text = template.text ? template.text : (Math.floor(dimensions.width) + "x" + Math.floor(dimensions.height)); + if (literal) { + var dimensions = holder.dimensions; + text = dimensions.width + "x" + dimensions.height; + } + else if(exact && holder.exact_dimensions){ + var dimensions = holder.exact_dimensions; + text = (Math.floor(dimensions.width) + "x" + Math.floor(dimensions.height)); + } var text_width = ctx.measureText(text).width; if (text_width / width >= 0.75) { - text_height = Math.floor(text_height * 0.75 * (width/text_width)); + text_height = Math.floor(text_height * 0.75 * (width / text_width)); } //Resetting font size if necessary ctx.font = "bold " + (text_height * ratio) + "px " + font; @@ -78,6 +223,7 @@ function draw(ctx, dimensions, template, ratio) { } function render(mode, el, holder, src) { + var dimensions = holder.dimensions, theme = holder.theme, text = holder.text ? decodeURIComponent(holder.text) : holder.text; @@ -88,8 +234,11 @@ function render(mode, el, holder, src) { theme = (holder.font ? extend(theme, { font: holder.font }) : theme); + el.setAttribute("data-src", src); + holder.theme = theme; + el.holder_data = holder; + 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"; @@ -98,64 +247,109 @@ function render(mode, el, holder, src) { if (fallback) { el.style.backgroundColor = theme.background; } else { - el.setAttribute("src", draw(ctx, dimensions, theme, ratio)); + el.setAttribute("src", draw({ctx: ctx, dimensions: dimensions, template: theme, ratio:ratio, holder: holder})); + + if(holder.textmode && holder.textmode == "exact"){ + resizable_images.push(el); + resizable_update(el); + } + } } else if (mode == "background") { if (!fallback) { - el.style.backgroundImage = "url(" + draw(ctx, dimensions, theme, ratio) + ")"; + el.style.backgroundImage = "url(" + draw({ctx:ctx, dimensions: dimensions, template: theme, ratio: ratio, holder: holder}) + ")"; 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) == "%") { + if (dimensions.height.slice(-1) == "%") { el.style.height = dimensions.height } else { el.style.height = dimensions.height + "px" } - if (dimensions.width.substr(-1) == "%") { + if (dimensions.width.slice(-1) == "%") { el.style.width = dimensions.width } else { el.style.width = dimensions.width + "px" } - if (el.style.display == "inline" || el.style.display == "") { + if (el.style.display == "inline" || el.style.display === "" || el.style.display == "none") { el.style.display = "block"; } if (fallback) { el.style.backgroundColor = theme.background; } else { - el.holderData = holder; - fluid_images.push(el); - fluid_update(el); + resizable_images.push(el); + resizable_update(el); } } -}; +} + +function dimension_check(el, callback) { + var dimensions = { + height: el.clientHeight, + width: el.clientWidth + }; + if (!dimensions.height && !dimensions.width) { + if (el.hasAttribute("data-holder-invisible")) { + throw new Error("Holder: placeholder is not visible"); + } else { + el.setAttribute("data-holder-invisible", true) + setTimeout(function () { + callback.call(this, el) + }, 1) + return null; + } + } else { + el.removeAttribute("data-holder-invisible") + } + return dimensions; +} -function fluid_update(element) { +function resizable_update(element) { var images; if (element.nodeType == null) { - images = fluid_images; + images = resizable_images; } else { images = [element] } - for (i in images) { + for (var i in images) { + if (!images.hasOwnProperty(i)) { + continue; + } 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)); + if (el.holder_data) { + var holder = el.holder_data; + var dimensions = dimension_check(el, resizable_update) + if(dimensions){ + if(holder.fluid){ + el.setAttribute("src", draw({ + ctx: ctx, + dimensions: dimensions, + template: holder.theme, + ratio: ratio, + holder: holder + })) + } + if(holder.textmode && holder.textmode == "exact"){ + holder.exact_dimensions = dimensions; + el.setAttribute("src", draw({ + ctx: ctx, + dimensions: holder.dimensions, + template: holder.theme, + ratio: ratio, + holder: holder + })) + } + } } } } function parse_flags(flags, options) { - var ret = { - theme: settings.themes.gray - }, render = false; - + theme: extend(settings.themes.gray, {}) + }; + var render = false; for (sl = flags.length, j = 0; j < sl; j++) { var flag = flags[j]; if (app.flags.dimensions.match(flag)) { @@ -165,121 +359,24 @@ function parse_flags(flags, options) { render = true; ret.dimensions = app.flags.fluid.output(flag); ret.fluid = true; + } else if (app.flags.textmode.match(flag)) { + ret.textmode = app.flags.textmode.output(flag) } 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); + if(options.themes.hasOwnProperty(flag)){ + ret.theme = extend(options.themes[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; + } else if (app.flags.text.match(flag)) { + ret.text = app.flags.text.output(flag); } } - 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) { @@ -288,12 +385,10 @@ for (var flag in app.flags) { 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) { @@ -305,32 +400,29 @@ app.add_image = function (src, el) { } return app; }; - app.run = function (o) { + preempted = true; + 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) { + 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); + + 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"); @@ -338,53 +430,44 @@ app.run = function (o) { 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)); - } + 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) + } 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); - } + 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){} - + var attr_data_src, attr_src; + 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); @@ -399,19 +482,17 @@ app.run = function (o) { } return app; }; - contentLoaded(win, function () { if (window.addEventListener) { - window.addEventListener("resize", fluid_update, false); - window.addEventListener("orientationchange", fluid_update, false); + window.addEventListener("resize", resizable_update, false); + window.addEventListener("orientationchange", resizable_update, false); } else { - window.attachEvent("onresize", fluid_update) + window.attachEvent("onresize", resizable_update) } preempted || app.run(); }); - if (typeof define === "function" && define.amd) { - define("Holder", [], function () { + define([], function () { return app; }); } |
