mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-03 18:47:53 +00:00
523a115dcc
The background to have this assertion is that nsDeckFrame::HideBox calls PresShell::ClearMouseCapture and ClearMouseCapture checks whether the being-hidden panel has a content capturing mouse events or not but the check doesn't work if the content is in a remote process. In our current mozilla-central tree, there is no such nsDeckFrame other than our browser's tab. In the case of our browser's tab when switching tabs, i.e. hiding an active tab, clearing the mouse capturing state has (should have) worked since E10S (Note for Fission cases it has worked since bug 1680405). So, because nsDeckFrame will be obsoleted sooner or later, we disallow the situation for other cases instead of adding special handling for the other case. Differential Revision: https://phabricator.services.mozilla.com/D119067
78 lines
2.2 KiB
C++
78 lines
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
/**
|
|
|
|
Eric D Vaughan
|
|
A frame that can have multiple children. Only one child may be displayed at
|
|
one time. So the can be flipped though like a deck of cards.
|
|
|
|
**/
|
|
|
|
#ifndef nsDeckFrame_h___
|
|
#define nsDeckFrame_h___
|
|
|
|
#include "mozilla/Attributes.h"
|
|
#include "nsBoxFrame.h"
|
|
|
|
namespace mozilla {
|
|
class PresShell;
|
|
} // namespace mozilla
|
|
|
|
class nsDeckFrame final : public nsBoxFrame {
|
|
public:
|
|
NS_DECL_QUERYFRAME
|
|
NS_DECL_FRAMEARENA_HELPERS(nsDeckFrame)
|
|
|
|
friend nsIFrame* NS_NewDeckFrame(mozilla::PresShell* aPresShell,
|
|
ComputedStyle* aStyle);
|
|
|
|
virtual nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
|
|
int32_t aModType) override;
|
|
|
|
NS_IMETHOD DoXULLayout(nsBoxLayoutState& aState) override;
|
|
|
|
virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
|
|
const nsDisplayListSet& aLists) override;
|
|
|
|
virtual void RemoveFrame(ChildListID aListID, nsIFrame* aOldFrame) override;
|
|
|
|
virtual void BuildDisplayListForChildren(
|
|
nsDisplayListBuilder* aBuilder, const nsDisplayListSet& aLists) override;
|
|
|
|
virtual void Init(nsIContent* aContent, nsContainerFrame* aParent,
|
|
nsIFrame* aPrevInFlow) override;
|
|
|
|
#ifdef DEBUG_FRAME_DUMP
|
|
virtual nsresult GetFrameName(nsAString& aResult) const override {
|
|
return MakeFrameName(u"Deck"_ns, aResult);
|
|
}
|
|
#endif
|
|
|
|
explicit nsDeckFrame(ComputedStyle* aStyle, nsPresContext* aPresContext);
|
|
|
|
nsIFrame* GetSelectedBox();
|
|
|
|
// Returns whether this frame has any <browser> or <iframe> elements.
|
|
// Note that this function traverses down all descendants so this function
|
|
// should be used only in debug builds.
|
|
bool HasPossiblyRemoteContents() const;
|
|
|
|
protected:
|
|
void IndexChanged();
|
|
int32_t GetSelectedIndex();
|
|
void HideBox(nsIFrame* aBox);
|
|
void ShowBox(nsIFrame* aBox);
|
|
|
|
private:
|
|
int32_t mIndex;
|
|
|
|
void Animate(nsIFrame*, bool);
|
|
|
|
}; // class nsDeckFrame
|
|
|
|
#endif
|