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 "nsIAtom.h"
michael@0: #include "nsIDOMEventListener.h"
michael@0: #include "nsIDOMKeyEvent.h"
michael@0: #include "nsIDOMMouseEvent.h"
michael@0: #include "nsXBLPrototypeHandler.h"
michael@0: #include "nsContentUtils.h"
michael@0: #include "mozilla/dom/Event.h" // for nsIDOMEvent::InternalDOMEvent()
michael@0: #include "mozilla/dom/EventTarget.h"
michael@0: 
michael@0: using namespace mozilla::dom;
michael@0: 
michael@0: nsXBLEventHandler::nsXBLEventHandler(nsXBLPrototypeHandler* aHandler)
michael@0:   : mProtoHandler(aHandler)
michael@0: {
michael@0: }
michael@0: 
michael@0: nsXBLEventHandler::~nsXBLEventHandler()
michael@0: {
michael@0: }
michael@0: 
michael@0: NS_IMPL_ISUPPORTS(nsXBLEventHandler, nsIDOMEventListener)
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsXBLEventHandler::HandleEvent(nsIDOMEvent* aEvent)
michael@0: {
michael@0:   if (!mProtoHandler)
michael@0:     return NS_ERROR_FAILURE;
michael@0: 
michael@0:   uint8_t phase = mProtoHandler->GetPhase();
michael@0:   if (phase == NS_PHASE_TARGET) {
michael@0:     uint16_t eventPhase;
michael@0:     aEvent->GetEventPhase(&eventPhase);
michael@0:     if (eventPhase != nsIDOMEvent::AT_TARGET)
michael@0:       return NS_OK;
michael@0:   }
michael@0: 
michael@0:   if (!EventMatched(aEvent))
michael@0:     return NS_OK;
michael@0: 
michael@0:   mProtoHandler->ExecuteHandler(aEvent->InternalDOMEvent()->GetCurrentTarget(),
michael@0:                                 aEvent);
michael@0: 
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: nsXBLMouseEventHandler::nsXBLMouseEventHandler(nsXBLPrototypeHandler* aHandler)
michael@0:   : nsXBLEventHandler(aHandler)
michael@0: {
michael@0: }
michael@0: 
michael@0: nsXBLMouseEventHandler::~nsXBLMouseEventHandler()
michael@0: {
michael@0: }
michael@0: 
michael@0: bool
michael@0: nsXBLMouseEventHandler::EventMatched(nsIDOMEvent* aEvent)
michael@0: {
michael@0:   nsCOMPtr<nsIDOMMouseEvent> mouse(do_QueryInterface(aEvent));
michael@0:   return mouse && mProtoHandler->MouseEventMatched(mouse);
michael@0: }
michael@0: 
michael@0: nsXBLKeyEventHandler::nsXBLKeyEventHandler(nsIAtom* aEventType, uint8_t aPhase,
michael@0:                                            uint8_t aType)
michael@0:   : mEventType(aEventType),
michael@0:     mPhase(aPhase),
michael@0:     mType(aType),
michael@0:     mIsBoundToChrome(false),
michael@0:     mUsingXBLScope(false)
michael@0: {
michael@0: }
michael@0: 
michael@0: nsXBLKeyEventHandler::~nsXBLKeyEventHandler()
michael@0: {
michael@0: }
michael@0: 
michael@0: NS_IMPL_ISUPPORTS(nsXBLKeyEventHandler, nsIDOMEventListener)
michael@0: 
michael@0: bool
michael@0: nsXBLKeyEventHandler::ExecuteMatchedHandlers(nsIDOMKeyEvent* aKeyEvent,
michael@0:                                              uint32_t aCharCode,
michael@0:                                              bool aIgnoreShiftKey)
michael@0: {
michael@0:   bool trustedEvent = false;
michael@0:   aKeyEvent->GetIsTrusted(&trustedEvent);
michael@0: 
michael@0:   nsCOMPtr<EventTarget> target = aKeyEvent->InternalDOMEvent()->GetCurrentTarget();
michael@0: 
michael@0:   bool executed = false;
michael@0:   for (uint32_t i = 0; i < mProtoHandlers.Length(); ++i) {
michael@0:     nsXBLPrototypeHandler* handler = mProtoHandlers[i];
michael@0:     bool hasAllowUntrustedAttr = handler->HasAllowUntrustedAttr();
michael@0:     if ((trustedEvent ||
michael@0:         (hasAllowUntrustedAttr && handler->AllowUntrustedEvents()) ||
michael@0:         (!hasAllowUntrustedAttr && !mIsBoundToChrome && !mUsingXBLScope)) &&
michael@0:         handler->KeyEventMatched(aKeyEvent, aCharCode, aIgnoreShiftKey)) {
michael@0:       handler->ExecuteHandler(target, aKeyEvent);
michael@0:       executed = true;
michael@0:     }
michael@0:   }
michael@0:   return executed;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsXBLKeyEventHandler::HandleEvent(nsIDOMEvent* aEvent)
michael@0: {
michael@0:   uint32_t count = mProtoHandlers.Length();
michael@0:   if (count == 0)
michael@0:     return NS_ERROR_FAILURE;
michael@0: 
michael@0:   if (mPhase == NS_PHASE_TARGET) {
michael@0:     uint16_t eventPhase;
michael@0:     aEvent->GetEventPhase(&eventPhase);
michael@0:     if (eventPhase != nsIDOMEvent::AT_TARGET)
michael@0:       return NS_OK;
michael@0:   }
michael@0: 
michael@0:   nsCOMPtr<nsIDOMKeyEvent> key(do_QueryInterface(aEvent));
michael@0:   if (!key)
michael@0:     return NS_OK;
michael@0: 
michael@0:   nsAutoTArray<nsShortcutCandidate, 10> accessKeys;
michael@0:   nsContentUtils::GetAccelKeyCandidates(key, accessKeys);
michael@0: 
michael@0:   if (accessKeys.IsEmpty()) {
michael@0:     ExecuteMatchedHandlers(key, 0, false);
michael@0:     return NS_OK;
michael@0:   }
michael@0: 
michael@0:   for (uint32_t i = 0; i < accessKeys.Length(); ++i) {
michael@0:     if (ExecuteMatchedHandlers(key, accessKeys[i].mCharCode,
michael@0:                                accessKeys[i].mIgnoreShift))
michael@0:       return NS_OK;
michael@0:   }
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: ///////////////////////////////////////////////////////////////////////////////////
michael@0: 
michael@0: nsresult
michael@0: NS_NewXBLEventHandler(nsXBLPrototypeHandler* aHandler,
michael@0:                       nsIAtom* aEventType,
michael@0:                       nsXBLEventHandler** aResult)
michael@0: {
michael@0:   switch (nsContentUtils::GetEventCategory(nsDependentAtomString(aEventType))) {
michael@0:     case NS_DRAG_EVENT:
michael@0:     case NS_MOUSE_EVENT:
michael@0:     case NS_MOUSE_SCROLL_EVENT:
michael@0:     case NS_WHEEL_EVENT:
michael@0:     case NS_SIMPLE_GESTURE_EVENT:
michael@0:       *aResult = new nsXBLMouseEventHandler(aHandler);
michael@0:       break;
michael@0:     default:
michael@0:       *aResult = new nsXBLEventHandler(aHandler);
michael@0:       break;
michael@0:   }
michael@0: 
michael@0:   if (!*aResult)
michael@0:     return NS_ERROR_OUT_OF_MEMORY;
michael@0: 
michael@0:   NS_ADDREF(*aResult);
michael@0: 
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: NS_NewXBLKeyEventHandler(nsIAtom* aEventType, uint8_t aPhase, uint8_t aType,
michael@0:                          nsXBLKeyEventHandler** aResult)
michael@0: {
michael@0:   *aResult = new nsXBLKeyEventHandler(aEventType, aPhase, aType);
michael@0: 
michael@0:   if (!*aResult)
michael@0:     return NS_ERROR_OUT_OF_MEMORY;
michael@0: 
michael@0:   NS_ADDREF(*aResult);
michael@0: 
michael@0:   return NS_OK;
michael@0: }