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