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Bug 969250 - Part 1: Implement scroll snapping for scrollbars (v5 Patch). r=roc

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This commit is contained in:
Kearwood (Kip) Gilbert
2015-03-03 17:40:00 +01:00
parent d52a16a476
commit c1456fb0f3
11 changed files with 178 additions and 69 deletions
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15
layout/xul/nsScrollbarButtonFrame.cpp
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@@ -141,19 +141,19 @@ nsScrollbarButtonFrame::HandleButtonPress(nsPresContext* aPresContext,
case 0:
sb->SetIncrementToLine(direction);
if (m) {
m->ScrollByLine(sb, direction);
m->ScrollByLine(sb, direction, nsIScrollbarMediator::ENABLE_SNAP);
}
break;
case 1:
sb->SetIncrementToPage(direction);
if (m) {
m->ScrollByPage(sb, direction);
m->ScrollByPage(sb, direction, nsIScrollbarMediator::ENABLE_SNAP);
}
break;
case 2:
sb->SetIncrementToWhole(direction);
if (m) {
m->ScrollByWhole(sb, direction);
m->ScrollByWhole(sb, direction, nsIScrollbarMediator::ENABLE_SNAP);
}
break;
case 3:
@@ -187,6 +187,15 @@ nsScrollbarButtonFrame::HandleRelease(nsPresContext* aPresContext,
// we're not active anymore
mContent->UnsetAttr(kNameSpaceID_None, nsGkAtoms::active, true);
StopRepeat();
nsIFrame* scrollbar;
GetParentWithTag(nsGkAtoms::scrollbar, this, scrollbar);
nsScrollbarFrame* sb = do_QueryFrame(scrollbar);
if (sb) {
nsIScrollbarMediator* m = sb->GetScrollbarMediator();
if (m) {
m->ScrollbarReleased(sb);
}
}
return NS_OK;
}