diff --git a/build/html2canvas.js b/build/html2canvas.js index d2a85a9..a9e3a78 100644 --- a/build/html2canvas.js +++ b/build/html2canvas.js @@ -231,7 +231,7 @@ ImageLoader.prototype.loadImage = function(imageData) { } else if (this.support.cors && !this.options.allowTaint && this.options.useCORS) { return new ImageContainer(src, true); } else if (this.options.proxy) { - return new ProxyImageContainer(src); + return new ProxyImageContainer(src, this.options.proxy); } else { return new DummyImageContainer(src); } @@ -1256,6 +1256,40 @@ function stripQuotes(content) { */ !function(){var a,b,c,d;!function(){var e={},f={};a=function(a,b,c){e[a]={deps:b,callback:c}},d=c=b=function(a){function c(b){if("."!==b.charAt(0))return b;for(var c=b.split("/"),d=a.split("/").slice(0,-1),e=0,f=c.length;f>e;e++){var g=c[e];if(".."===g)d.pop();else{if("."===g)continue;d.push(g)}}return d.join("/")}if(d._eak_seen=e,f[a])return f[a];if(f[a]={},!e[a])throw new Error("Could not find module "+a);for(var g,h=e[a],i=h.deps,j=h.callback,k=[],l=0,m=i.length;m>l;l++)"exports"===i[l]?k.push(g={}):k.push(b(c(i[l])));var n=j.apply(this,k);return f[a]=g||n}}(),a("promise/all",["./utils","exports"],function(a,b){"use strict";function c(a){var b=this;if(!d(a))throw new TypeError("You must pass an array to all.");return new b(function(b,c){function d(a){return function(b){f(a,b)}}function f(a,c){h[a]=c,0===--i&&b(h)}var g,h=[],i=a.length;0===i&&b([]);for(var j=0;j -1) ? "&" : "?" ) + 'url=' + encodeURIComponent(src) + '&callback=' + callbackName; + this.src = src; + this.image = new Image(); + var image = this.image; + this.promise = new Promise(function(resolve, reject) { + image.onload = resolve; + image.onerror = reject; + + window[callbackName] = function(a){ + if (a.substring(0,6) === "error:"){ + reject(); + } else { + image.src = a; + } + window[callbackName] = undefined; // to work with IE<9 // NOTE: that the undefined callback property-name still exists on the window object (for IE<9) + try { + delete window[callbackName]; // for all browser that support this + } catch(ex) {} + script.parentNode.removeChild(script); + }; + script.setAttribute("type", "text/javascript"); + script.setAttribute("src", requestUrl); + document.body.appendChild(script); + }); +} + +var proxyImageCount = 0; + function Renderer(width, height, images) { this.width = width; this.height = height; diff --git a/build/html2canvas.min.js b/build/html2canvas.min.js index 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s=Math.round(r.left+e.left+i),a=Math.round(r.top+e.top+o);this.setFillStyle(this.ctx.createPattern(this.resizeImage(t,n),"repeat")),this.ctx.translate(s,a),this.ctx.fill(),this.ctx.translate(-s,-a) +},Z.prototype.renderBackgroundGradient=function(t,e){t instanceof g&&this.ctx.createLinearGradient(e.left,e.top,e.right,e.bottom)},Z.prototype.resizeImage=function(t,n){var r=t.image;if(r.width===n.width&&r.height===n.height)return r;var i,o=e.createElement("canvas");return o.width=n.width,o.height=n.height,i=o.getContext("2d"),i.drawImage(r,0,0,r.width,r.height,0,0,n.width,n.height),o},te.prototype=Object.create(y.prototype),te.prototype.getParentStack=function(t){var e=this.parent?this.parent.stack:null;return e?e.ownStacking?e:e.getParentStack(t):t.stack},ee.prototype.testRangeBounds=function(){var t,n,r,i,o=!1;return e.createRange&&(t=e.createRange(),t.getBoundingClientRect&&(n=e.createElement("boundtest"),n.style.height="123px",n.style.display="block",e.body.appendChild(n),t.selectNode(n),r=t.getBoundingClientRect(),i=r.height,123===i&&(o=!0),e.body.removeChild(n))),o},ee.prototype.testCORS=function(){return(new Image).crossOrigin!==n},ne.prototype=Object.create(y.prototype),ne.prototype.applyTextTransform=function(){this.node.data=this.transform(this.parent.css("textTransform"))},ne.prototype.transform=function(t){var e=this.node.data;switch(t){case"lowercase":return e.toLowerCase();case"capitalize":return e.replace(/(^|\s|:|-|\(|\))([a-z])/g,re);case"uppercase":return e.toUpperCase();default:return e}},ie.prototype=Object.create(u.prototype)})(window,document); \ No newline at end of file diff --git a/src/imageloader.js b/src/imageloader.js index 0e36a20..9a89b74 100644 --- a/src/imageloader.js +++ b/src/imageloader.js @@ -39,7 +39,7 @@ ImageLoader.prototype.loadImage = function(imageData) { } else if (this.support.cors && !this.options.allowTaint && this.options.useCORS) { return new ImageContainer(src, true); } else if (this.options.proxy) { - return new ProxyImageContainer(src); + return new ProxyImageContainer(src, this.options.proxy); } else { return new DummyImageContainer(src); } diff --git a/src/proxyimagecontainer.js b/src/proxyimagecontainer.js new file mode 100644 index 0000000..88954a8 --- /dev/null +++ b/src/proxyimagecontainer.js @@ -0,0 +1,33 @@ +function ProxyImageContainer(src, proxy) { + var callbackName = "html2canvas_" + proxyImageCount++; + var script = document.createElement("script"); + var link = document.createElement("a"); + link.href = src; + src = link.href; + var requestUrl = proxy + ((proxy.indexOf("?") > -1) ? "&" : "?" ) + 'url=' + encodeURIComponent(src) + '&callback=' + callbackName; + this.src = src; + this.image = new Image(); + var image = this.image; + this.promise = new Promise(function(resolve, reject) { + image.onload = resolve; + image.onerror = reject; + + window[callbackName] = function(a){ + if (a.substring(0,6) === "error:"){ + reject(); + } else { + image.src = a; + } + window[callbackName] = undefined; // to work with IE<9 // NOTE: that the undefined callback property-name still exists on the window object (for IE<9) + try { + delete window[callbackName]; // for all browser that support this + } catch(ex) {} + script.parentNode.removeChild(script); + }; + script.setAttribute("type", "text/javascript"); + script.setAttribute("src", requestUrl); + document.body.appendChild(script); + }); +} + +var proxyImageCount = 0; diff --git a/tests/test.js b/tests/test.js index 5a53625..23b812e 100644 --- a/tests/test.js +++ b/tests/test.js @@ -11,7 +11,7 @@ var h2cSelector, h2cOptions; document.write(srcStart + '/tests/assets/jquery-1.6.2.js' + scrEnd); document.write(srcStart + '/tests/assets/jquery.plugin.html2canvas.js' + scrEnd); - var html2canvas = ['log', 'nodecontainer', 'stackingcontext', 'textcontainer', 'support', 'imagecontainer', 'gradientcontainer', 'lineargradientcontainer', 'webkitgradientcontainer', + var html2canvas = ['log', 'nodecontainer', 'stackingcontext', 'textcontainer', 'support', 'imagecontainer', 'proxyimagecontainer', 'gradientcontainer', 'lineargradientcontainer', 'webkitgradientcontainer', 'imageloader', 'nodeparser', 'font', 'fontmetrics', 'core', 'renderer', 'promise', 'renderers/canvas'], i; for (i = 0; i < html2canvas.length; ++i) { document.write(srcStart + '/src/' + html2canvas[i] + '.js?' + Math.random() + scrEnd); @@ -30,7 +30,7 @@ var h2cSelector, h2cOptions; logging: true, profile: true, proxy: "http://html2canvas.appspot.com/query", - useCORS: true + useCORS: false }, h2cOptions)); }, 100); };