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Bug 911152 - Don't reprocess the same metadata over and over. r=wesj

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This commit is contained in:
Kartikaya Gupta 2013-09-27 13:57:54 -04:00
parent 31a6a8ad74
commit b9ca06189a
1 changed files with 16 additions and 0 deletions
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16
mobile/android/chrome/content/browser.js
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@ -3822,6 +3822,10 @@ Tab.prototype = {
aMetadata.isRTL = this.browser.contentDocument.documentElement.dir == "rtl";
// if the metadata hasn't actually changed, no need to do anything
if (aMetadata.equals(this.metadata))
return;
ViewportHandler.setMetadataForDocument(this.browser.contentDocument, aMetadata);
this.updateViewportSize(gScreenWidth, aInitialLoad);
this.sendViewportMetadata();
@ -5808,6 +5812,18 @@ ViewportMetadata.prototype = {
allowZoom: null,
isSpecified: null,
isRTL: null,
equals: function(aOther) {
return this.width === aOther.width
&& this.height === aOther.height
&& this.defaultZoom === aOther.defaultZoom
&& (this.minZoom === aOther.minZoom || (isNaN(minZoom) && isNaN(aOther.minZoom)))
&& (this.maxZoom === aOther.maxZoom || (isNaN(maxZoom) && isNaN(aOther.maxZoom)))
&& this.autoSize === aOther.autoSize
&& this.allowZoom === aOther.allowZoom
&& this.isSpecified === aOther.isSpecified
&& this.isRTL === aOther.isRTL;
}
};