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Bug 829862 - Recalculate scroll direction when traversing to the outer frame. r=vivien

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This commit is contained in:
Alfredo Yang 2013-06-05 08:02:51 -04:00
parent e38a539d67
commit bb9e1b8d60
1 changed files with 5 additions and 2 deletions
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7
dom/browser-element/BrowserElementPanning.js
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@ -372,10 +372,13 @@ const ContentPanning = {
let isScrolling = false;
let oldX, oldY, newX, newY;
let win, doc, htmlNode, bodyNode;
let xScrollable = content.scrollWidth > content.clientWidth;
let yScrollable = content.scrollHeight > content.clientHeight;
let xScrollable;
let yScrollable;
function doScroll(node, delta) {
// recalculate scrolling direction
xScrollable = node.scrollWidth > node.clientWidth;
yScrollable = node.scrollHeight > node.clientHeight;
if (node instanceof Ci.nsIDOMHTMLElement) {
newX = oldX = node.scrollLeft, newY = oldY = node.scrollTop;
if (xScrollable) {