mirror of
https://github.com/classilla/tenfourfox.git
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179 lines
5.0 KiB
C++
179 lines
5.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsCOMPtr.h"
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#include "nsPresContext.h"
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#include "nsGkAtoms.h"
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#include "nsButtonBoxFrame.h"
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#include "nsITimer.h"
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#include "nsRepeatService.h"
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#include "mozilla/MouseEvents.h"
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#include "nsIContent.h"
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using namespace mozilla;
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class nsAutoRepeatBoxFrame : public nsButtonBoxFrame
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{
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public:
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NS_DECL_FRAMEARENA_HELPERS
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friend nsIFrame* NS_NewAutoRepeatBoxFrame(nsIPresShell* aPresShell,
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nsStyleContext* aContext);
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virtual void DestroyFrom(nsIFrame* aDestructRoot) override;
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virtual nsresult AttributeChanged(int32_t aNameSpaceID,
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nsIAtom* aAttribute,
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int32_t aModType) override;
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virtual nsresult HandleEvent(nsPresContext* aPresContext,
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WidgetGUIEvent* aEvent,
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nsEventStatus* aEventStatus) override;
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NS_IMETHOD HandlePress(nsPresContext* aPresContext,
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WidgetGUIEvent* aEvent,
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nsEventStatus* aEventStatus) override;
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NS_IMETHOD HandleRelease(nsPresContext* aPresContext,
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WidgetGUIEvent* aEvent,
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nsEventStatus* aEventStatus) override;
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protected:
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explicit nsAutoRepeatBoxFrame(nsStyleContext* aContext):
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nsButtonBoxFrame(aContext) {}
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void StartRepeat() {
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if (IsActivatedOnHover()) {
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// No initial delay on hover.
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nsRepeatService::GetInstance()->Start(Notify, this, 0);
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} else {
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nsRepeatService::GetInstance()->Start(Notify, this);
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}
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}
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void StopRepeat() {
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nsRepeatService::GetInstance()->Stop(Notify, this);
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}
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void Notify();
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static void Notify(void* aData) {
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static_cast<nsAutoRepeatBoxFrame*>(aData)->Notify();
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}
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bool mTrustedEvent;
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bool IsActivatedOnHover();
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};
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nsIFrame*
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NS_NewAutoRepeatBoxFrame (nsIPresShell* aPresShell, nsStyleContext* aContext)
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{
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return new (aPresShell) nsAutoRepeatBoxFrame(aContext);
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}
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NS_IMPL_FRAMEARENA_HELPERS(nsAutoRepeatBoxFrame)
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nsresult
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nsAutoRepeatBoxFrame::HandleEvent(nsPresContext* aPresContext,
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WidgetGUIEvent* aEvent,
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nsEventStatus* aEventStatus)
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{
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NS_ENSURE_ARG_POINTER(aEventStatus);
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if (nsEventStatus_eConsumeNoDefault == *aEventStatus) {
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return NS_OK;
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}
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switch(aEvent->mMessage) {
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// repeat mode may be "hover" for repeating while the mouse is hovering
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// over the element, otherwise repetition is done while the element is
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// active (pressed).
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case eMouseEnterIntoWidget:
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case eMouseOver:
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if (IsActivatedOnHover()) {
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StartRepeat();
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mTrustedEvent = aEvent->mFlags.mIsTrusted;
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}
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break;
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case eMouseExitFromWidget:
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case eMouseOut:
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// always stop on mouse exit
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StopRepeat();
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// Not really necessary but do this to be safe
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mTrustedEvent = false;
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break;
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case eMouseClick: {
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WidgetMouseEvent* mouseEvent = aEvent->AsMouseEvent();
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if (mouseEvent->IsLeftClickEvent()) {
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// skip button frame handling to prevent click handling
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return nsBoxFrame::HandleEvent(aPresContext, mouseEvent, aEventStatus);
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}
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break;
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}
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default:
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break;
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}
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return nsButtonBoxFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
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}
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NS_IMETHODIMP
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nsAutoRepeatBoxFrame::HandlePress(nsPresContext* aPresContext,
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WidgetGUIEvent* aEvent,
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nsEventStatus* aEventStatus)
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{
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if (!IsActivatedOnHover()) {
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StartRepeat();
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mTrustedEvent = aEvent->mFlags.mIsTrusted;
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DoMouseClick(aEvent, mTrustedEvent);
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsAutoRepeatBoxFrame::HandleRelease(nsPresContext* aPresContext,
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WidgetGUIEvent* aEvent,
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nsEventStatus* aEventStatus)
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{
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if (!IsActivatedOnHover()) {
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StopRepeat();
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}
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return NS_OK;
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}
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nsresult
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nsAutoRepeatBoxFrame::AttributeChanged(int32_t aNameSpaceID,
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nsIAtom* aAttribute,
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int32_t aModType)
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{
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if (aAttribute == nsGkAtoms::type) {
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StopRepeat();
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}
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return NS_OK;
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}
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void
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nsAutoRepeatBoxFrame::Notify()
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{
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DoMouseClick(nullptr, mTrustedEvent);
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}
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void
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nsAutoRepeatBoxFrame::DestroyFrom(nsIFrame* aDestructRoot)
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{
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// Ensure our repeat service isn't going... it's possible that a scrollbar can disappear out
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// from under you while you're in the process of scrolling.
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StopRepeat();
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nsButtonBoxFrame::DestroyFrom(aDestructRoot);
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}
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bool
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nsAutoRepeatBoxFrame::IsActivatedOnHover()
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{
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return mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::repeat,
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nsGkAtoms::hover, eCaseMatters);
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}
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