gecko/dom/base/nsWindowRoot.cpp

277 lines
8.5 KiB
C++

/* -*- Mode: C++; tab-width: 3; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Mozilla browser.
*
* The Initial Developer of the Original Code is
* Netscape Communications, Inc.
* Portions created by the Initial Developer are Copyright (C) 1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* David W. Hyatt <hyatt@netscape.com> (Original Author)
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsCOMPtr.h"
#include "nsWindowRoot.h"
#include "nsIDOMWindow.h"
#include "nsIDOMDocument.h"
#include "nsIDocument.h"
#include "nsIEventListenerManager.h"
#include "nsIPresShell.h"
#include "nsPresContext.h"
#include "nsLayoutCID.h"
#include "nsContentCID.h"
#include "nsIEventStateManager.h"
#include "nsIPrivateDOMEvent.h"
#include "nsIDOMWindowInternal.h"
#include "nsFocusController.h"
#include "nsString.h"
#include "nsEventDispatcher.h"
#include "nsIProgrammingLanguage.h"
#include "nsGUIEvent.h"
#include "nsCycleCollectionParticipant.h"
static NS_DEFINE_CID(kEventListenerManagerCID, NS_EVENTLISTENERMANAGER_CID);
nsWindowRoot::nsWindowRoot(nsIDOMWindow* aWindow)
{
mWindow = aWindow;
// Create and init our focus controller.
nsFocusController::Create(getter_AddRefs(mFocusController));
}
nsWindowRoot::~nsWindowRoot()
{
if (mListenerManager) {
mListenerManager->Disconnect();
}
}
NS_IMPL_CYCLE_COLLECTION_2(nsWindowRoot, mListenerManager, mFocusController)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsWindowRoot)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMEventTarget)
NS_INTERFACE_MAP_ENTRY(nsPIDOMEventTarget)
NS_INTERFACE_MAP_ENTRY(nsPIWindowRoot)
NS_INTERFACE_MAP_ENTRY(nsIDOMEventTarget)
NS_INTERFACE_MAP_ENTRY(nsIDOM3EventTarget)
NS_INTERFACE_MAP_ENTRY(nsIDOMNSEventTarget)
NS_INTERFACE_MAP_END
NS_IMPL_CYCLE_COLLECTING_ADDREF_AMBIGUOUS(nsWindowRoot, nsIDOMEventTarget)
NS_IMPL_CYCLE_COLLECTING_RELEASE_AMBIGUOUS(nsWindowRoot, nsIDOMEventTarget)
NS_IMETHODIMP
nsWindowRoot::AddEventListener(const nsAString& aType, nsIDOMEventListener* aListener, PRBool aUseCapture)
{
return AddGroupedEventListener(aType, aListener, aUseCapture, nsnull);
}
NS_IMETHODIMP
nsWindowRoot::RemoveEventListener(const nsAString& aType, nsIDOMEventListener* aListener, PRBool aUseCapture)
{
return RemoveGroupedEventListener(aType, aListener, aUseCapture, nsnull);
}
NS_IMETHODIMP
nsWindowRoot::DispatchEvent(nsIDOMEvent* aEvt, PRBool *_retval)
{
nsEventStatus status = nsEventStatus_eIgnore;
nsresult rv = nsEventDispatcher::DispatchDOMEvent(
static_cast<nsPIDOMEventTarget*>(this), nsnull, aEvt, nsnull, &status);
*_retval = (status != nsEventStatus_eConsumeNoDefault);
return rv;
}
nsresult
nsWindowRoot::DispatchDOMEvent(nsEvent* aEvent,
nsIDOMEvent* aDOMEvent,
nsPresContext* aPresContext,
nsEventStatus* aEventStatus)
{
return nsEventDispatcher::DispatchDOMEvent(static_cast<nsPIDOMEventTarget*>(this),
aEvent, aDOMEvent,
aPresContext, aEventStatus);
}
NS_IMETHODIMP
nsWindowRoot::AddGroupedEventListener(const nsAString & aType, nsIDOMEventListener *aListener,
PRBool aUseCapture, nsIDOMEventGroup *aEvtGrp)
{
nsCOMPtr<nsIEventListenerManager> manager = GetListenerManager(PR_TRUE);
NS_ENSURE_STATE(manager);
PRInt32 flags = aUseCapture ? NS_EVENT_FLAG_CAPTURE : NS_EVENT_FLAG_BUBBLE;
return manager->AddEventListenerByType(aListener, aType, flags, aEvtGrp);
}
NS_IMETHODIMP
nsWindowRoot::RemoveGroupedEventListener(const nsAString & aType, nsIDOMEventListener *aListener,
PRBool aUseCapture, nsIDOMEventGroup *aEvtGrp)
{
if (mListenerManager) {
PRInt32 flags = aUseCapture ? NS_EVENT_FLAG_CAPTURE : NS_EVENT_FLAG_BUBBLE;
return mListenerManager->RemoveEventListenerByType(aListener, aType, flags,
aEvtGrp);
}
return NS_OK;
}
NS_IMETHODIMP
nsWindowRoot::CanTrigger(const nsAString & type, PRBool *_retval)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsWindowRoot::IsRegisteredHere(const nsAString & type, PRBool *_retval)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsWindowRoot::AddEventListener(const nsAString& aType,
nsIDOMEventListener *aListener,
PRBool aUseCapture, PRBool aWantsUntrusted)
{
nsIEventListenerManager* manager = GetListenerManager(PR_TRUE);
NS_ENSURE_STATE(manager);
PRInt32 flags = aUseCapture ? NS_EVENT_FLAG_CAPTURE : NS_EVENT_FLAG_BUBBLE;
if (aWantsUntrusted) {
flags |= NS_PRIV_EVENT_UNTRUSTED_PERMITTED;
}
return manager->AddEventListenerByType(aListener, aType, flags, nsnull);
}
nsresult
nsWindowRoot::AddEventListenerByIID(nsIDOMEventListener *aListener, const nsIID& aIID)
{
nsIEventListenerManager* manager = GetListenerManager(PR_TRUE);
NS_ENSURE_STATE(manager);
return manager->AddEventListenerByIID(aListener, aIID, NS_EVENT_FLAG_BUBBLE);
}
nsresult
nsWindowRoot::RemoveEventListenerByIID(nsIDOMEventListener *aListener, const nsIID& aIID)
{
nsIEventListenerManager* manager = GetListenerManager(PR_TRUE);
if (manager) {
return manager->RemoveEventListenerByIID(aListener, aIID,
NS_EVENT_FLAG_BUBBLE);
}
return NS_OK;
}
nsIEventListenerManager*
nsWindowRoot::GetListenerManager(PRBool aCreateIfNotFound)
{
if (!mListenerManager) {
if (!aCreateIfNotFound) {
return nsnull;
}
mListenerManager = do_CreateInstance(kEventListenerManagerCID);
if (mListenerManager) {
mListenerManager->SetListenerTarget(
static_cast<nsPIDOMEventTarget*>(this));
}
}
return mListenerManager;
}
nsresult
nsWindowRoot::GetSystemEventGroup(nsIDOMEventGroup **aGroup)
{
nsIEventListenerManager* manager = GetListenerManager(PR_TRUE);
NS_ENSURE_STATE(manager);
return manager->GetSystemEventGroupLM(aGroup);
}
nsresult
nsWindowRoot::PreHandleEvent(nsEventChainPreVisitor& aVisitor)
{
aVisitor.mCanHandle = PR_TRUE;
aVisitor.mForceContentDispatch = PR_TRUE; //FIXME! Bug 329119
// To keep mWindow alive
aVisitor.mItemData = mWindow;
return NS_OK;
}
nsresult
nsWindowRoot::PostHandleEvent(nsEventChainPostVisitor& aVisitor)
{
return NS_OK;
}
NS_IMETHODIMP
nsWindowRoot::GetFocusController(nsIFocusController** aResult)
{
*aResult = mFocusController;
NS_IF_ADDREF(*aResult);
return NS_OK;
}
nsIDOMWindow*
nsWindowRoot::GetWindow()
{
return mWindow;
}
NS_IMETHODIMP
nsWindowRoot::GetScriptTypeID(PRUint32 *aScriptType)
{
NS_ERROR("No default script type here - ask some element");
return nsIProgrammingLanguage::UNKNOWN;
}
NS_IMETHODIMP
nsWindowRoot::SetScriptTypeID(PRUint32 aScriptType)
{
NS_ERROR("Can't change default script type for a document");
return NS_ERROR_NOT_IMPLEMENTED;
}
///////////////////////////////////////////////////////////////////////////////////
nsresult
NS_NewWindowRoot(nsIDOMWindow* aWindow, nsPIDOMEventTarget** aResult)
{
*aResult = new nsWindowRoot(aWindow);
if (!*aResult)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(*aResult);
return NS_OK;
}