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