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Added support for base64 encoded images as sources

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This commit is contained in:
The Brain
2011-09-12 11:02:15 +03:00
parent 07c0c13cc1
commit 958cfdf4eb
2 changed files with 40 additions and 13 deletions
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40
build/html2canvas.js
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@@ -28,6 +28,16 @@
* THE SOFTWARE.
*/
if (typeof Array.prototype.indexOf == "undefined") {
Array.prototype.indexOf = function(elem) {
if (!this.length) return -1;
for (var i = 0, len = this.length; i < len; i++) {
if (this[i] == elem) return i
}
return -1
}
}
/**
* Creates a render of the element el
* @constructor
@@ -150,7 +160,7 @@ html2canvas.prototype.init = function(){
this.images.push('start');
this.getImages(this.element);
this.log('Finding images');
// console.log(this.element.ownerDocument);
@@ -173,8 +183,7 @@ html2canvas.prototype.init = function(){
*/
html2canvas.prototype.start = function(){
// console.log(this.images);
if (this.images.length == 0 || this.imagesLoaded==this.images.length/2){
if (this.images.length == 0 || this.imagesLoaded==this.images.length/2){
this.log('Finished loading '+this.imagesLoaded+' images, Started parsing');
this.bodyOverflow = document.getElementsByTagName('body')[0].style.overflow;
@@ -294,11 +303,13 @@ html2canvas.prototype.finish = function(){
html2canvas.prototype.drawBackground = function(el,bounds,ctx){
// TODO add support for multi background-images
var background_image = this.getCSS(el,"background-image").split(",")[0];
var background_image = this.getCSS(el,"background-image");
var background_repeat = this.getCSS(el,"background-repeat").split(",")[0];
if (!background_image.match(/data:image\/.*;base64,/i))
background_image = this.getCSS(el,"background-image").split(",")[0];
if (typeof background_image != "undefined" && /^(1|none)$/.test(background_image)==false && /^(-webkit|-moz|linear-gradient|-o-)/.test(background_image)==false){
background_image = this.backgroundImageUrl(background_image);
var image = this.loadImage(background_image);
@@ -439,7 +450,10 @@ html2canvas.prototype.drawBackground = function(el,bounds,ctx){
*/
html2canvas.prototype.backgroundImageUrl = function(src){
if (src.substr(0,5)=='url("'){
if (src.match(/data:image\/.*;base64,/i)) {
return src
}
if (src.toLowerCase().substr(0,5)=='url("'){
src = src.substr(5);
src = src.substr(0,src.length-2);
}else{
@@ -610,7 +624,6 @@ html2canvas.prototype.getBorderData = function(el){
html2canvas.prototype.drawBorders = function(el,ctx, bounds,clip){
var x = bounds.left;
var y = bounds.top;
var w = bounds.width;
@@ -961,7 +974,7 @@ html2canvas.prototype.getImages = function(el) {
if (background_image && background_image != "1" && background_image != "none" && background_image.substring(0,7)!="-webkit" && background_image.substring(0,3)!="-o-" && background_image.substring(0,4)!="-moz"){
// TODO add multi image background support
var src = this.backgroundImageUrl(background_image.split(",")[0]);
var src = this.backgroundImageUrl(background_image.match(/data:image\/.*;base64,/i) ? background_image : background_image.split(",")[0]);
this.preloadImage(src);
}
}
@@ -991,7 +1004,14 @@ html2canvas.prototype.preloadImage = function(src){
if (this.getIndex(this.images,src)==-1){
if (this.isSameOrigin(src)){
if (src.match(/data:image\/.*;base64,/i)) {
var img = new Image();
img.src = src.replace(/url\(['"]|['"]\)$/img, '');
this.images.push(src);
this.images.push(img);
this.imagesLoaded++;
this.start();
} else if(this.isSameOrigin(src)){
this.images.push(src);
// console.log('a'+src);
var img = new Image();