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Bug 789079 - In the tab container's dragover handler, calculate the drop indicator's minimum and maximum margins only when scrolling. r=jaws

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This commit is contained in:
Dão Gottwald 2012-09-10 12:24:29 +02:00
parent 93b85de558
commit 0ef2bdf747
1 changed files with 7 additions and 7 deletions
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14
browser/base/content/tabbrowser.xml
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@ -3647,18 +3647,18 @@
}
}
var scrollRect = tabStrip.scrollClientRect;
var rect = tabStrip.getBoundingClientRect();
var minMargin = scrollRect.left - rect.left;
var maxMargin = Math.min(minMargin + scrollRect.width,
scrollRect.right);
if (!ltr)
[minMargin, maxMargin] = [this.clientWidth - maxMargin,
this.clientWidth - minMargin];
var newMargin;
if (pixelsToScroll) {
// if we are scrolling, put the drop indicator at the edge
// so that it doesn't jump while scrolling
let scrollRect = tabStrip.scrollClientRect;
let minMargin = scrollRect.left - rect.left;
let maxMargin = Math.min(minMargin + scrollRect.width,
scrollRect.right);
if (!ltr)
[minMargin, maxMargin] = [this.clientWidth - maxMargin,
this.clientWidth - minMargin];
newMargin = (pixelsToScroll > 0) ? maxMargin : minMargin;
}
else {