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don't process pseudo elements for hidden elements; cleanup pseudo elements after render

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This commit is contained in:
Andy Edinborough
2013-01-11 10:46:53 -06:00
parent d73e53fbf0
commit 2b0db917e3
3 changed files with 26 additions and 10 deletions
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26
src/Preload.js
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@ -212,10 +212,12 @@ _html2canvas.Preload = function( options ) {
*/
}
var uid = 0, injectStyle;
function injectPseudoElements(el) {
if(!_html2canvas.Util.isElementVisible(el)) {
return;
}
var before = getPseudoElement(el, ':before'),
after = getPseudoElement(el, ':after');
if(!before && !after) {
@ -258,6 +260,17 @@ _html2canvas.Preload = function( options ) {
}
}
function cleanupPseudoElements(){
if(!injectStyle) {
return;
}
injectStyle.parentNode.removeChild(injectStyle);
injectStyle = undefined;
[].slice.apply(element.all || element.getElementsByTagName('*'))
.forEach(removePseudoElements);
}
function getPseudoElement(el, which) {
var elStyle = window.getComputedStyle(el, which);
if(!elStyle || !elStyle.content) { return; }
@ -380,19 +393,14 @@ _html2canvas.Preload = function( options ) {
}
}
if(injectStyle) {
injectStyle.parentNode.removeChild(injectStyle);
injectStyle = undefined;
[].slice.apply(element.all || element.getElementsByTagName('*'))
.forEach(removePseudoElements);
}
cleanupPseudoElements();
},
renderingDone: function() {
if (timeoutTimer) {
window.clearTimeout(timeoutTimer);
}
cleanupPseudoElements();
}
};