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move parseBackgroundImage to Util; add tests

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This commit is contained in:
Andy Edinborough
2012-12-28 12:33:57 -06:00
parent 62cb111956
commit a4b7d04e80
3 changed files with 69 additions and 20 deletions
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21
src/Preload.js
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@ -124,7 +124,7 @@ _html2canvas.Preload = function( options ) {
h2clog("html2canvas: failed to get background-image - Exception: " + e.message);
}
background_images = parseBackgroundImage(background_image);
background_images = _html2canvas.Util.parseBackgroundImage(background_image);
while(!!(background_image = background_images.shift())) {
if ( background_image.value && background_image.value !== "1" && background_image.value !== "none" ) {
@ -153,25 +153,6 @@ _html2canvas.Preload = function( options ) {
}
}
function parseBackgroundImage(value) {
var rxBackgroundImage = /([a-z\-]+)\((("[^"]+)|([^)]+))\)/i,
match, results = [], n = 0;
if(!value) { return results; }
while(n++ < 100 && !!(match = value.match(rxBackgroundImage))) {
var def = match[2];
if(def.substr( 0, 1 ) === '"') {
def = def.substr(1, def.length-2);
}
results.push( {
method: match[1],
definition: def,
value: match[0]
} );
value = value.replace( match[0], '' );
}
return results;
}
function setImageLoadHandlers(img, imageObj) {
img.onload = function() {
if ( imageObj.timer !== undefined ) {