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Bug 824472 - Traverse containing frames when looking for scrollable content for browser elements. r=schien

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This commit is contained in:
Josh Matthews 2013-01-14 18:03:32 +01:00
parent 15c408b167
commit a1ff9dbdb6
1 changed files with 15 additions and 1 deletions
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16
dom/browser-element/BrowserElementScrolling.js
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@ -338,6 +338,10 @@ const ContentPanning = {
return nodeContent;
}
if (nodeContent.frameElement) {
return this._findPannable(nodeContent.frameElement);
}
return null;
},
@ -383,9 +387,19 @@ const ContentPanning = {
return false;
};
function targetParent(node) {
if (node.parentNode) {
return node.parentNode;
}
if (node.frameElement) {
return node.frameElement;
}
return null;
}
function scroll(delta) {
for (target = content; target;
target = ContentPanning._findPannable(target.parentNode)) {
target = ContentPanning._findPannable(targetParent(target))) {
isScrolling = doScroll(target, delta);
if (isScrolling || !firstScroll) {
break;