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Bug 1225508 - Add a displayport on non-scrollable frames which have a resolution. r=botond

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This commit is contained in:
Kartikaya Gupta 2015-11-27 11:20:04 -05:00
parent feacc0b279
commit 6d907ef764
1 changed files with 7 additions and 2 deletions
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9
layout/base/MobileViewportManager.cpp
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@ -222,8 +222,13 @@ void
MobileViewportManager::UpdateDisplayPortMargins()
{
if (nsIFrame* root = mPresShell->GetRootScrollFrame()) {
if (!nsLayoutUtils::GetDisplayPort(root->GetContent(), nullptr)) {
// There isn't already a displayport, so we don't want to add one.
bool hasDisplayPort = nsLayoutUtils::GetDisplayPort(root->GetContent(), nullptr);
bool hasResolution = mPresShell->ScaleToResolution() &&
mPresShell->GetResolution() != 1.0f;
if (!hasDisplayPort && !hasResolution) {
// We only want to update the displayport if there is one already, or
// add one if there's a resolution on the document (see bug 1225508
// comment 1).
return;
}
nsIScrollableFrame* scrollable = do_QueryFrame(root);