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 "mozilla/BasicEvents.h"
michael@0: #include "mozilla/EventDispatcher.h"
michael@0: #include "mozilla/EventListenerManager.h"
michael@0: #include "nsCOMPtr.h"
michael@0: #include "nsWindowRoot.h"
michael@0: #include "nsPIDOMWindow.h"
michael@0: #include "nsPresContext.h"
michael@0: #include "nsLayoutCID.h"
michael@0: #include "nsContentCID.h"
michael@0: #include "nsString.h"
michael@0: #include "nsGlobalWindow.h"
michael@0: #include "nsFocusManager.h"
michael@0: #include "nsIContent.h"
michael@0: #include "nsIDOMHTMLInputElement.h"
michael@0: #include "nsIDOMHTMLTextAreaElement.h"
michael@0: #include "nsIControllers.h"
michael@0: #include "nsIController.h"
michael@0: 
michael@0: #include "nsCycleCollectionParticipant.h"
michael@0: 
michael@0: #ifdef MOZ_XUL
michael@0: #include "nsIDOMXULElement.h"
michael@0: #endif
michael@0: 
michael@0: using namespace mozilla;
michael@0: using namespace mozilla::dom;
michael@0: 
michael@0: nsWindowRoot::nsWindowRoot(nsPIDOMWindow* aWindow)
michael@0: {
michael@0:   mWindow = aWindow;
michael@0: }
michael@0: 
michael@0: nsWindowRoot::~nsWindowRoot()
michael@0: {
michael@0:   if (mListenerManager) {
michael@0:     mListenerManager->Disconnect();
michael@0:   }
michael@0: }
michael@0: 
michael@0: NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_4(nsWindowRoot,
michael@0:                                         mWindow,
michael@0:                                         mListenerManager,
michael@0:                                         mPopupNode,
michael@0:                                         mParent)
michael@0: 
michael@0: NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsWindowRoot)
michael@0:   NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
michael@0:   NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMEventTarget)
michael@0:   NS_INTERFACE_MAP_ENTRY(nsPIWindowRoot)
michael@0:   NS_INTERFACE_MAP_ENTRY(nsIDOMEventTarget)
michael@0:   NS_INTERFACE_MAP_ENTRY(mozilla::dom::EventTarget)
michael@0: NS_INTERFACE_MAP_END
michael@0: 
michael@0: NS_IMPL_CYCLE_COLLECTING_ADDREF(nsWindowRoot)
michael@0: NS_IMPL_CYCLE_COLLECTING_RELEASE(nsWindowRoot)
michael@0: 
michael@0: NS_IMPL_DOMTARGET_DEFAULTS(nsWindowRoot)
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsWindowRoot::RemoveEventListener(const nsAString& aType, nsIDOMEventListener* aListener, bool aUseCapture)
michael@0: {
michael@0:   if (nsRefPtr<EventListenerManager> elm = GetExistingListenerManager()) {
michael@0:     elm->RemoveEventListener(aType, aListener, aUseCapture);
michael@0:   }
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMPL_REMOVE_SYSTEM_EVENT_LISTENER(nsWindowRoot)
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsWindowRoot::DispatchEvent(nsIDOMEvent* aEvt, bool *aRetVal)
michael@0: {
michael@0:   nsEventStatus status = nsEventStatus_eIgnore;
michael@0:   nsresult rv =  EventDispatcher::DispatchDOMEvent(
michael@0:     static_cast<EventTarget*>(this), nullptr, aEvt, nullptr, &status);
michael@0:   *aRetVal = (status != nsEventStatus_eConsumeNoDefault);
michael@0:   return rv;
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: nsWindowRoot::DispatchDOMEvent(WidgetEvent* aEvent,
michael@0:                                nsIDOMEvent* aDOMEvent,
michael@0:                                nsPresContext* aPresContext,
michael@0:                                nsEventStatus* aEventStatus)
michael@0: {
michael@0:   return EventDispatcher::DispatchDOMEvent(static_cast<EventTarget*>(this),
michael@0:                                            aEvent, aDOMEvent,
michael@0:                                            aPresContext, aEventStatus);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsWindowRoot::AddEventListener(const nsAString& aType,
michael@0:                                nsIDOMEventListener *aListener,
michael@0:                                bool aUseCapture, bool aWantsUntrusted,
michael@0:                                uint8_t aOptionalArgc)
michael@0: {
michael@0:   NS_ASSERTION(!aWantsUntrusted || aOptionalArgc > 1,
michael@0:                "Won't check if this is chrome, you want to set "
michael@0:                "aWantsUntrusted to false or make the aWantsUntrusted "
michael@0:                "explicit by making optional_argc non-zero.");
michael@0: 
michael@0:   EventListenerManager* elm = GetOrCreateListenerManager();
michael@0:   NS_ENSURE_STATE(elm);
michael@0:   elm->AddEventListener(aType, aListener, aUseCapture, aWantsUntrusted);
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: void
michael@0: nsWindowRoot::AddEventListener(const nsAString& aType,
michael@0:                                 EventListener* aListener,
michael@0:                                 bool aUseCapture,
michael@0:                                 const Nullable<bool>& aWantsUntrusted,
michael@0:                                 ErrorResult& aRv)
michael@0: {
michael@0:   bool wantsUntrusted = !aWantsUntrusted.IsNull() && aWantsUntrusted.Value();
michael@0:   EventListenerManager* elm = GetOrCreateListenerManager();
michael@0:   if (!elm) {
michael@0:     aRv.Throw(NS_ERROR_UNEXPECTED);
michael@0:     return;
michael@0:   }
michael@0:   elm->AddEventListener(aType, aListener, aUseCapture, wantsUntrusted);
michael@0: }
michael@0: 
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsWindowRoot::AddSystemEventListener(const nsAString& aType,
michael@0:                                      nsIDOMEventListener *aListener,
michael@0:                                      bool aUseCapture,
michael@0:                                      bool aWantsUntrusted,
michael@0:                                      uint8_t aOptionalArgc)
michael@0: {
michael@0:   NS_ASSERTION(!aWantsUntrusted || aOptionalArgc > 1,
michael@0:                "Won't check if this is chrome, you want to set "
michael@0:                "aWantsUntrusted to false or make the aWantsUntrusted "
michael@0:                "explicit by making optional_argc non-zero.");
michael@0: 
michael@0:   return NS_AddSystemEventListener(this, aType, aListener, aUseCapture,
michael@0:                                    aWantsUntrusted);
michael@0: }
michael@0: 
michael@0: EventListenerManager*
michael@0: nsWindowRoot::GetOrCreateListenerManager()
michael@0: {
michael@0:   if (!mListenerManager) {
michael@0:     mListenerManager =
michael@0:       new EventListenerManager(static_cast<EventTarget*>(this));
michael@0:   }
michael@0: 
michael@0:   return mListenerManager;
michael@0: }
michael@0: 
michael@0: EventListenerManager*
michael@0: nsWindowRoot::GetExistingListenerManager() const
michael@0: {
michael@0:   return mListenerManager;
michael@0: }
michael@0: 
michael@0: nsIScriptContext*
michael@0: nsWindowRoot::GetContextForEventHandlers(nsresult* aRv)
michael@0: {
michael@0:   *aRv = NS_OK;
michael@0:   return nullptr;
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: nsWindowRoot::PreHandleEvent(EventChainPreVisitor& aVisitor)
michael@0: {
michael@0:   aVisitor.mCanHandle = true;
michael@0:   aVisitor.mForceContentDispatch = true; //FIXME! Bug 329119
michael@0:   // To keep mWindow alive
michael@0:   aVisitor.mItemData = static_cast<nsISupports *>(mWindow);
michael@0:   aVisitor.mParentTarget = mParent;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: nsWindowRoot::PostHandleEvent(EventChainPostVisitor& aVisitor)
michael@0: {
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: nsIDOMWindow*
michael@0: nsWindowRoot::GetOwnerGlobal()
michael@0: {
michael@0:   return GetWindow();
michael@0: }
michael@0: 
michael@0: nsPIDOMWindow*
michael@0: nsWindowRoot::GetWindow()
michael@0: {
michael@0:   return mWindow;
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: nsWindowRoot::GetControllers(nsIControllers** aResult)
michael@0: {
michael@0:   *aResult = nullptr;
michael@0: 
michael@0:   // XXX: we should fix this so there's a generic interface that
michael@0:   // describes controllers, so this code would have no special
michael@0:   // knowledge of what object might have controllers.
michael@0: 
michael@0:   nsCOMPtr<nsPIDOMWindow> focusedWindow;
michael@0:   nsIContent* focusedContent =
michael@0:     nsFocusManager::GetFocusedDescendant(mWindow, true, getter_AddRefs(focusedWindow));
michael@0:   if (focusedContent) {
michael@0: #ifdef MOZ_XUL
michael@0:     nsCOMPtr<nsIDOMXULElement> xulElement(do_QueryInterface(focusedContent));
michael@0:     if (xulElement)
michael@0:       return xulElement->GetControllers(aResult);
michael@0: #endif
michael@0: 
michael@0:     nsCOMPtr<nsIDOMHTMLTextAreaElement> htmlTextArea =
michael@0:       do_QueryInterface(focusedContent);
michael@0:     if (htmlTextArea)
michael@0:       return htmlTextArea->GetControllers(aResult);
michael@0: 
michael@0:     nsCOMPtr<nsIDOMHTMLInputElement> htmlInputElement =
michael@0:       do_QueryInterface(focusedContent);
michael@0:     if (htmlInputElement)
michael@0:       return htmlInputElement->GetControllers(aResult);
michael@0: 
michael@0:     if (focusedContent->IsEditable() && focusedWindow)
michael@0:       return focusedWindow->GetControllers(aResult);
michael@0:   }
michael@0:   else {
michael@0:     nsCOMPtr<nsIDOMWindow> domWindow = do_QueryInterface(focusedWindow);
michael@0:     if (domWindow)
michael@0:       return domWindow->GetControllers(aResult);
michael@0:   }
michael@0: 
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: nsWindowRoot::GetControllerForCommand(const char * aCommand,
michael@0:                                       nsIController** _retval)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(_retval);
michael@0:   *_retval = nullptr;
michael@0: 
michael@0:   {
michael@0:     nsCOMPtr<nsIControllers> controllers;
michael@0:     GetControllers(getter_AddRefs(controllers));
michael@0:     if (controllers) {
michael@0:       nsCOMPtr<nsIController> controller;
michael@0:       controllers->GetControllerForCommand(aCommand, getter_AddRefs(controller));
michael@0:       if (controller) {
michael@0:         controller.forget(_retval);
michael@0:         return NS_OK;
michael@0:       }
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   nsCOMPtr<nsPIDOMWindow> focusedWindow;
michael@0:   nsFocusManager::GetFocusedDescendant(mWindow, true, getter_AddRefs(focusedWindow));
michael@0:   while (focusedWindow) {
michael@0:     nsCOMPtr<nsIControllers> controllers;
michael@0:     focusedWindow->GetControllers(getter_AddRefs(controllers));
michael@0:     if (controllers) {
michael@0:       nsCOMPtr<nsIController> controller;
michael@0:       controllers->GetControllerForCommand(aCommand,
michael@0:                                            getter_AddRefs(controller));
michael@0:       if (controller) {
michael@0:         controller.forget(_retval);
michael@0:         return NS_OK;
michael@0:       }
michael@0:     }
michael@0: 
michael@0:     // XXXndeakin P3 is this casting safe?
michael@0:     nsGlobalWindow *win = static_cast<nsGlobalWindow*>(focusedWindow.get());
michael@0:     focusedWindow = win->GetPrivateParent();
michael@0:   }
michael@0:   
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: nsIDOMNode*
michael@0: nsWindowRoot::GetPopupNode()
michael@0: {
michael@0:   return mPopupNode;
michael@0: }
michael@0: 
michael@0: void
michael@0: nsWindowRoot::SetPopupNode(nsIDOMNode* aNode)
michael@0: {
michael@0:   mPopupNode = aNode;
michael@0: }
michael@0: 
michael@0: ///////////////////////////////////////////////////////////////////////////////////
michael@0: 
michael@0: already_AddRefed<EventTarget>
michael@0: NS_NewWindowRoot(nsPIDOMWindow* aWindow)
michael@0: {
michael@0:   nsCOMPtr<EventTarget> result = new nsWindowRoot(aWindow);
michael@0:   return result.forget();
michael@0: }