mirror of
https://github.com/mozilla/gecko-dev.git
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233 lines
7.2 KiB
C++
233 lines
7.2 KiB
C++
/* -*- Mode: C++; tab-width: 3; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the Mozilla browser.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications, Inc.
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* Portions created by the Initial Developer are Copyright (C) 1999
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* David W. Hyatt <hyatt@netscape.com> (Original Author)
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* Dan Rosen <dr@netscape.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsIContent.h"
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#include "nsIControllers.h"
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#include "nsIDOMDocument.h"
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#include "nsIDOMHTMLDocument.h"
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#include "nsIDOMElement.h"
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#include "nsIDOMNSHTMLInputElement.h"
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#include "nsIDOMNSHTMLTextAreaElement.h"
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#include "nsIDOMNSEvent.h"
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#include "nsIDOMWindowInternal.h"
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#include "nsIDocument.h"
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#include "nsPIDOMWindow.h"
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#include "nsFocusController.h"
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#include "prlog.h"
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#include "nsGlobalWindow.h"
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#include "nsFocusManager.h"
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#ifdef MOZ_XUL
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#include "nsIDOMXULDocument.h"
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#include "nsIDOMXULElement.h"
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#endif
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////////////////////////////////////////////////////////////////////////
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NS_IMPL_CYCLE_COLLECTION_CLASS(nsFocusController)
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NS_IMPL_CYCLE_COLLECTING_ADDREF_AMBIGUOUS(nsFocusController, nsIFocusController)
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NS_IMPL_CYCLE_COLLECTING_RELEASE_AMBIGUOUS(nsFocusController,
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nsIFocusController)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsFocusController)
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NS_INTERFACE_MAP_ENTRY(nsIFocusController)
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NS_INTERFACE_MAP_ENTRY(nsSupportsWeakReference)
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NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIFocusController)
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NS_INTERFACE_MAP_END
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NS_IMPL_CYCLE_COLLECTION_UNLINK_0(nsFocusController)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(nsFocusController)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mPopupNode)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMETHODIMP
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nsFocusController::Create(nsIFocusController** aResult)
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{
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nsFocusController* controller = new nsFocusController();
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if (!controller)
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return NS_ERROR_OUT_OF_MEMORY;
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*aResult = controller;
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NS_ADDREF(*aResult);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFocusController::GetControllers(nsIControllers** aResult)
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{
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// XXX: we should fix this so there's a generic interface that
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// describes controllers, so this code would have no special
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// knowledge of what object might have controllers.
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nsCOMPtr<nsIDOMElement> focusedElement;
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nsIFocusManager* fm = nsFocusManager::GetFocusManager();
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if (fm)
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fm->GetFocusedElement(getter_AddRefs(focusedElement));
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if (focusedElement) {
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#ifdef MOZ_XUL
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nsCOMPtr<nsIDOMXULElement> xulElement(do_QueryInterface(focusedElement));
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if (xulElement)
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return xulElement->GetControllers(aResult);
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#endif
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nsCOMPtr<nsIDOMNSHTMLTextAreaElement> htmlTextArea =
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do_QueryInterface(focusedElement);
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if (htmlTextArea)
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return htmlTextArea->GetControllers(aResult);
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nsCOMPtr<nsIDOMNSHTMLInputElement> htmlInputElement =
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do_QueryInterface(focusedElement);
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if (htmlInputElement)
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return htmlInputElement->GetControllers(aResult);
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nsCOMPtr<nsIContent> content = do_QueryInterface(focusedElement);
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if (content && content->IsEditable()) {
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// Move up to the window.
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nsCOMPtr<nsIDOMDocument> domDoc;
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focusedElement->GetOwnerDocument(getter_AddRefs(domDoc));
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nsCOMPtr<nsIDOMWindowInternal> domWindow =
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do_QueryInterface(GetWindowFromDocument(domDoc));
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if (domWindow)
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return domWindow->GetControllers(aResult);
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}
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}
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else {
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nsCOMPtr<nsIDOMWindow> focusedWindow;
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fm->GetFocusedWindow(getter_AddRefs(focusedWindow));
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nsCOMPtr<nsIDOMWindowInternal> domWindow = do_QueryInterface(focusedWindow);
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if (domWindow)
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return domWindow->GetControllers(aResult);
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}
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*aResult = nsnull;
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return NS_OK;
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}
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nsPIDOMWindow *
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nsFocusController::GetWindowFromDocument(nsIDOMDocument* aDocument)
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{
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nsCOMPtr<nsIDocument> doc = do_QueryInterface(aDocument);
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if (!doc)
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return nsnull;
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return doc->GetWindow();
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}
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NS_IMETHODIMP
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nsFocusController::GetControllerForCommand(const char * aCommand,
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nsIController** _retval)
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{
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NS_ENSURE_ARG_POINTER(_retval);
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*_retval = nsnull;
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nsCOMPtr<nsIControllers> controllers;
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nsCOMPtr<nsIController> controller;
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GetControllers(getter_AddRefs(controllers));
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if(controllers) {
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controllers->GetControllerForCommand(aCommand, getter_AddRefs(controller));
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if(controller) {
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controller.swap(*_retval);
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return NS_OK;
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}
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}
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nsCOMPtr<nsIDOMElement> focusedElement;
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nsCOMPtr<nsIDOMWindow> focusedWindow;
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nsIFocusManager* fm = nsFocusManager::GetFocusManager();
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if (fm) {
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fm->GetFocusedElement(getter_AddRefs(focusedElement));
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fm->GetFocusedWindow(getter_AddRefs(focusedWindow));
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}
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while (focusedWindow) {
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nsCOMPtr<nsIDOMWindowInternal> domWindow(do_QueryInterface(focusedWindow));
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nsCOMPtr<nsIControllers> controllers2;
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domWindow->GetControllers(getter_AddRefs(controllers2));
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if(controllers2) {
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controllers2->GetControllerForCommand(aCommand,
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getter_AddRefs(controller));
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if(controller) {
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controller.swap(*_retval);
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return NS_OK;
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}
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}
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// XXXndeakin P3 is this casting safe?
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nsCOMPtr<nsPIDOMWindow> piWindow = do_QueryInterface(focusedWindow);
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nsGlobalWindow *win =
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static_cast<nsGlobalWindow *>
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(static_cast<nsIDOMWindowInternal *>(piWindow));
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focusedWindow = win->GetPrivateParent();
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFocusController::GetPopupNode(nsIDOMNode** aNode)
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{
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#ifdef DEBUG_dr
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printf("dr :: nsFocusController::GetPopupNode\n");
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#endif
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*aNode = mPopupNode;
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NS_IF_ADDREF(*aNode);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFocusController::SetPopupNode(nsIDOMNode* aNode)
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{
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#ifdef DEBUG_dr
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printf("dr :: nsFocusController::SetPopupNode\n");
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#endif
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if (aNode) {
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nsCOMPtr<nsINode> node = do_QueryInterface(aNode);
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NS_ENSURE_ARG(node);
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}
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mPopupNode = aNode;
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return NS_OK;
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}
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