/*
-Holder - 2.1 - client side image placeholders
+Holder - 2.2 - client side image placeholders
(c) 2012-2013 Ivan Malopinsky / http://imsky.co
Provided under the MIT License.
var preempted = false,
fallback = false,
canvas = document.createElement('canvas');
+var dpr = 1, bsr = 1;
+var resizable_images = [];
if (!canvas.getContext) {
fallback = true;
}
}
-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 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})
}
//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)
}
}
-function draw(ctx, dimensions, template, ratio, literal) {
+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,
ctx.font = "bold " + text_height + "px " + font;
var text = template.text ? template.text : (Math.floor(dimensions.width) + "x" + Math.floor(dimensions.height));
if (literal) {
- text = template.literalText;
+ 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) {
}
function render(mode, el, holder, src) {
+
var dimensions = holder.dimensions,
theme = holder.theme,
text = holder.text ? decodeURIComponent(holder.text) : holder.text;
font: holder.font
}) : theme);
el.setAttribute("data-src", src);
- theme.literalText = dimensions_caption;
- holder.originalTheme = holder.theme;
holder.theme = theme;
-
+ el.holder_data = holder;
+
if (mode == "image") {
el.setAttribute("alt", text ? text : theme.text ? theme.text + " [" + dimensions_caption + "]" : dimensions_caption);
if (fallback || !holder.auto) {
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") {
} 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 (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, !! holder.literal));
+ 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
+ theme: extend(settings.themes.gray, {})
};
var render = false;
for (sl = flags.length, j = 0; j < sl; j++) {
render = true;
ret.dimensions = app.flags.fluid.output(flag);
ret.fluid = true;
- } else if (app.flags.literal.match(flag)) {
- ret.literal = 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];
+ 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)) {
}
return render ? ret : false;
}
-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: ""
-};
-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$/
- },
- literal: {
- regex: /^literal$/
- }
-}
+
for (var flag in app.flags) {
if (!app.flags.hasOwnProperty(flag)) continue;
app.flags[flag].match = function (val) {
return app;
};
app.run = function (o) {
+ preempted = true;
+
var options = extend(settings, o),
images = [],
imageNodes = [],
} 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) {
} 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) {
};
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();
});
projects / thirdparty / bootstrap.git / commitdiff
