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: #include "nsCOMPtr.h"
michael@0: #include "nsButtonBoxFrame.h"
michael@0: #include "nsIContent.h"
michael@0: #include "nsIDOMNodeList.h"
michael@0: #include "nsIDOMXULButtonElement.h"
michael@0: #include "nsGkAtoms.h"
michael@0: #include "nsNameSpaceManager.h"
michael@0: #include "nsPresContext.h"
michael@0: #include "nsIPresShell.h"
michael@0: #include "nsIDOMElement.h"
michael@0: #include "nsDisplayList.h"
michael@0: #include "nsContentUtils.h"
michael@0: #include "mozilla/dom/Element.h"
michael@0: #include "mozilla/EventStateManager.h"
michael@0: #include "mozilla/EventStates.h"
michael@0: #include "mozilla/MouseEvents.h"
michael@0: #include "mozilla/TextEvents.h"
michael@0: 
michael@0: using namespace mozilla;
michael@0: 
michael@0: //
michael@0: // NS_NewXULButtonFrame
michael@0: //
michael@0: // Creates a new Button frame and returns it
michael@0: //
michael@0: nsIFrame*
michael@0: NS_NewButtonBoxFrame (nsIPresShell* aPresShell, nsStyleContext* aContext)
michael@0: {
michael@0:   return new (aPresShell) nsButtonBoxFrame(aPresShell, aContext);
michael@0: }
michael@0: 
michael@0: NS_IMPL_FRAMEARENA_HELPERS(nsButtonBoxFrame)
michael@0: 
michael@0: void
michael@0: nsButtonBoxFrame::BuildDisplayListForChildren(nsDisplayListBuilder*   aBuilder,
michael@0:                                               const nsRect&           aDirtyRect,
michael@0:                                               const nsDisplayListSet& aLists)
michael@0: {
michael@0:   // override, since we don't want children to get events
michael@0:   if (aBuilder->IsForEventDelivery())
michael@0:     return;
michael@0:   nsBoxFrame::BuildDisplayListForChildren(aBuilder, aDirtyRect, aLists);
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: nsButtonBoxFrame::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:     case NS_KEY_DOWN: {
michael@0:       WidgetKeyboardEvent* keyEvent = aEvent->AsKeyboardEvent();
michael@0:       if (!keyEvent) {
michael@0:         break;
michael@0:       }
michael@0:       if (NS_VK_SPACE == keyEvent->keyCode) {
michael@0:         EventStateManager* esm = aPresContext->EventStateManager();
michael@0:         // :hover:active state
michael@0:         esm->SetContentState(mContent, NS_EVENT_STATE_HOVER);
michael@0:         esm->SetContentState(mContent, NS_EVENT_STATE_ACTIVE);
michael@0:       }
michael@0:       break;
michael@0:     }
michael@0: 
michael@0: // On mac, Return fires the default button, not the focused one.
michael@0: #ifndef XP_MACOSX
michael@0:     case NS_KEY_PRESS: {
michael@0:       WidgetKeyboardEvent* keyEvent = aEvent->AsKeyboardEvent();
michael@0:       if (!keyEvent) {
michael@0:         break;
michael@0:       }
michael@0:       if (NS_VK_RETURN == keyEvent->keyCode) {
michael@0:         nsCOMPtr<nsIDOMXULButtonElement> buttonEl(do_QueryInterface(mContent));
michael@0:         if (buttonEl) {
michael@0:           MouseClicked(aPresContext, aEvent);
michael@0:           *aEventStatus = nsEventStatus_eConsumeNoDefault;
michael@0:         }
michael@0:       }
michael@0:       break;
michael@0:     }
michael@0: #endif
michael@0: 
michael@0:     case NS_KEY_UP: {
michael@0:       WidgetKeyboardEvent* keyEvent = aEvent->AsKeyboardEvent();
michael@0:       if (!keyEvent) {
michael@0:         break;
michael@0:       }
michael@0:       if (NS_VK_SPACE == keyEvent->keyCode) {
michael@0:         // only activate on keyup if we're already in the :hover:active state
michael@0:         NS_ASSERTION(mContent->IsElement(), "How do we have a non-element?");
michael@0:         EventStates buttonState = mContent->AsElement()->State();
michael@0:         if (buttonState.HasAllStates(NS_EVENT_STATE_ACTIVE |
michael@0:                                      NS_EVENT_STATE_HOVER)) {
michael@0:           // return to normal state
michael@0:           EventStateManager* esm = aPresContext->EventStateManager();
michael@0:           esm->SetContentState(nullptr, NS_EVENT_STATE_ACTIVE);
michael@0:           esm->SetContentState(nullptr, NS_EVENT_STATE_HOVER);
michael@0:           MouseClicked(aPresContext, aEvent);
michael@0:         }
michael@0:       }
michael@0:       break;
michael@0:     }
michael@0: 
michael@0:     case NS_MOUSE_CLICK: {
michael@0:       WidgetMouseEvent* mouseEvent = aEvent->AsMouseEvent();
michael@0:       if (mouseEvent->IsLeftClickEvent()) {
michael@0:         MouseClicked(aPresContext, mouseEvent);
michael@0:       }
michael@0:       break;
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   return nsBoxFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
michael@0: }
michael@0: 
michael@0: void 
michael@0: nsButtonBoxFrame::DoMouseClick(WidgetGUIEvent* aEvent, bool aTrustEvent)
michael@0: {
michael@0:   // Don't execute if we're disabled.
michael@0:   if (mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::disabled,
michael@0:                             nsGkAtoms::_true, eCaseMatters))
michael@0:     return;
michael@0: 
michael@0:   // Execute the oncommand event handler.
michael@0:   bool isShift = false;
michael@0:   bool isControl = false;
michael@0:   bool isAlt = false;
michael@0:   bool isMeta = false;
michael@0:   if(aEvent) {
michael@0:     WidgetInputEvent* inputEvent = aEvent->AsInputEvent();
michael@0:     isShift = inputEvent->IsShift();
michael@0:     isControl = inputEvent->IsControl();
michael@0:     isAlt = inputEvent->IsAlt();
michael@0:     isMeta = inputEvent->IsMeta();
michael@0:   }
michael@0: 
michael@0:   // Have the content handle the event, propagating it according to normal DOM rules.
michael@0:   nsCOMPtr<nsIPresShell> shell = PresContext()->GetPresShell();
michael@0:   if (shell) {
michael@0:     nsContentUtils::DispatchXULCommand(mContent,
michael@0:                                        aEvent ?
michael@0:                                          aEvent->mFlags.mIsTrusted : aTrustEvent,
michael@0:                                        nullptr, shell,
michael@0:                                        isControl, isAlt, isShift, isMeta);
michael@0:   }
michael@0: }