mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
8e3acb1006
--HG-- extra : rebase_source : 9a7823b365cfca04bb08c5be94eab29d218f1e61
515 lines
15 KiB
C++
515 lines
15 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=2 sw=2 et tw=80: */
|
|
/* ***** 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 mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 1998
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Original Author: David W. Hyatt (hyatt@netscape.com)
|
|
*
|
|
* 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 ***** */
|
|
|
|
/*
|
|
|
|
This file provides the implementation for the XUL Command Dispatcher.
|
|
|
|
*/
|
|
|
|
#include "nsIContent.h"
|
|
#include "nsFocusManager.h"
|
|
#include "nsIControllers.h"
|
|
#include "nsIDOMDocument.h"
|
|
#include "nsIDOMXULDocument.h"
|
|
#include "nsIDOMHTMLDocument.h"
|
|
#include "nsIDOMElement.h"
|
|
#include "nsIDOMNSHTMLInputElement.h"
|
|
#include "nsIDOMNSHTMLTextAreaElement.h"
|
|
#include "nsIDOMWindowInternal.h"
|
|
#include "nsIDOMXULElement.h"
|
|
#include "nsIDocument.h"
|
|
#include "nsPresContext.h"
|
|
#include "nsIPresShell.h"
|
|
#include "nsIScriptGlobalObject.h"
|
|
#include "nsPIDOMWindow.h"
|
|
#include "nsPIWindowRoot.h"
|
|
#include "nsRDFCID.h"
|
|
#include "nsXULCommandDispatcher.h"
|
|
#include "prlog.h"
|
|
#include "nsIDOMEventTarget.h"
|
|
#include "nsGUIEvent.h"
|
|
#include "nsContentUtils.h"
|
|
#include "nsReadableUtils.h"
|
|
#include "nsCRT.h"
|
|
#include "nsDOMError.h"
|
|
#include "nsEventDispatcher.h"
|
|
|
|
#ifdef PR_LOGGING
|
|
static PRLogModuleInfo* gLog;
|
|
#endif
|
|
|
|
////////////////////////////////////////////////////////////////////////
|
|
|
|
nsXULCommandDispatcher::nsXULCommandDispatcher(nsIDocument* aDocument)
|
|
: mDocument(aDocument), mUpdaters(nsnull)
|
|
{
|
|
|
|
#ifdef PR_LOGGING
|
|
if (! gLog)
|
|
gLog = PR_NewLogModule("nsXULCommandDispatcher");
|
|
#endif
|
|
}
|
|
|
|
nsXULCommandDispatcher::~nsXULCommandDispatcher()
|
|
{
|
|
Disconnect();
|
|
}
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_CLASS(nsXULCommandDispatcher)
|
|
|
|
// QueryInterface implementation for nsXULCommandDispatcher
|
|
|
|
DOMCI_DATA(XULCommandDispatcher, nsXULCommandDispatcher)
|
|
|
|
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsXULCommandDispatcher)
|
|
NS_INTERFACE_MAP_ENTRY(nsIDOMXULCommandDispatcher)
|
|
NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
|
|
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMXULCommandDispatcher)
|
|
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(XULCommandDispatcher)
|
|
NS_INTERFACE_MAP_END
|
|
|
|
NS_IMPL_CYCLE_COLLECTING_ADDREF(nsXULCommandDispatcher)
|
|
NS_IMPL_CYCLE_COLLECTING_RELEASE(nsXULCommandDispatcher)
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(nsXULCommandDispatcher)
|
|
tmp->Disconnect();
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(nsXULCommandDispatcher)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mDocument)
|
|
Updater* updater = tmp->mUpdaters;
|
|
while (updater) {
|
|
cb.NoteXPCOMChild(updater->mElement);
|
|
updater = updater->mNext;
|
|
}
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
|
|
|
|
void
|
|
nsXULCommandDispatcher::Disconnect()
|
|
{
|
|
while (mUpdaters) {
|
|
Updater* doomed = mUpdaters;
|
|
mUpdaters = mUpdaters->mNext;
|
|
delete doomed;
|
|
}
|
|
mDocument = nsnull;
|
|
}
|
|
|
|
already_AddRefed<nsPIWindowRoot>
|
|
nsXULCommandDispatcher::GetWindowRoot()
|
|
{
|
|
if (mDocument) {
|
|
nsCOMPtr<nsPIDOMWindow> window(do_QueryInterface(mDocument->GetScriptGlobalObject()));
|
|
if (window) {
|
|
return window->GetTopWindowRoot();
|
|
}
|
|
}
|
|
|
|
return nsnull;
|
|
}
|
|
|
|
nsIContent*
|
|
nsXULCommandDispatcher::GetRootFocusedContentAndWindow(nsPIDOMWindow** aWindow)
|
|
{
|
|
*aWindow = nsnull;
|
|
|
|
if (mDocument) {
|
|
nsCOMPtr<nsPIDOMWindow> win = mDocument->GetWindow();
|
|
if (win) {
|
|
nsCOMPtr<nsPIDOMWindow> rootWindow = win->GetPrivateRoot();
|
|
if (rootWindow) {
|
|
return nsFocusManager::GetFocusedDescendant(rootWindow, PR_TRUE, aWindow);
|
|
}
|
|
}
|
|
}
|
|
|
|
return nsnull;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXULCommandDispatcher::GetFocusedElement(nsIDOMElement** aElement)
|
|
{
|
|
*aElement = nsnull;
|
|
|
|
nsCOMPtr<nsPIDOMWindow> focusedWindow;
|
|
nsIContent* focusedContent =
|
|
GetRootFocusedContentAndWindow(getter_AddRefs(focusedWindow));
|
|
if (focusedContent) {
|
|
CallQueryInterface(focusedContent, aElement);
|
|
|
|
// Make sure the caller can access the focused element.
|
|
if (!nsContentUtils::CanCallerAccess(*aElement)) {
|
|
// XXX This might want to return null, but we use that return value
|
|
// to mean "there is no focused element," so to be clear, throw an
|
|
// exception.
|
|
NS_RELEASE(*aElement);
|
|
return NS_ERROR_DOM_SECURITY_ERR;
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXULCommandDispatcher::GetFocusedWindow(nsIDOMWindow** aWindow)
|
|
{
|
|
*aWindow = nsnull;
|
|
|
|
nsCOMPtr<nsPIDOMWindow> window;
|
|
GetRootFocusedContentAndWindow(getter_AddRefs(window));
|
|
if (!window)
|
|
return NS_OK;
|
|
|
|
// Make sure the caller can access this window. The caller can access this
|
|
// window iff it can access the document.
|
|
nsCOMPtr<nsIDOMDocument> domdoc;
|
|
nsresult rv = window->GetDocument(getter_AddRefs(domdoc));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// Note: If there is no document, then this window has been cleared and
|
|
// there's nothing left to protect, so let the window pass through.
|
|
if (domdoc && !nsContentUtils::CanCallerAccess(domdoc))
|
|
return NS_ERROR_DOM_SECURITY_ERR;
|
|
|
|
CallQueryInterface(window, aWindow);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXULCommandDispatcher::SetFocusedElement(nsIDOMElement* aElement)
|
|
{
|
|
nsIFocusManager* fm = nsFocusManager::GetFocusManager();
|
|
NS_ENSURE_TRUE(fm, NS_ERROR_FAILURE);
|
|
|
|
if (aElement)
|
|
return fm->SetFocus(aElement, 0);
|
|
|
|
// if aElement is null, clear the focus in the currently focused child window
|
|
nsCOMPtr<nsPIDOMWindow> focusedWindow;
|
|
GetRootFocusedContentAndWindow(getter_AddRefs(focusedWindow));
|
|
return fm->ClearFocus(focusedWindow);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXULCommandDispatcher::SetFocusedWindow(nsIDOMWindow* aWindow)
|
|
{
|
|
NS_ENSURE_TRUE(aWindow, NS_OK); // do nothing if set to null
|
|
|
|
nsCOMPtr<nsPIDOMWindow> window(do_QueryInterface(aWindow));
|
|
NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
|
|
|
|
nsIFocusManager* fm = nsFocusManager::GetFocusManager();
|
|
NS_ENSURE_TRUE(fm, NS_ERROR_FAILURE);
|
|
|
|
// get the containing frame for the window, and set it as focused. This will
|
|
// end up focusing whatever is currently focused inside the frame. Since
|
|
// setting the command dispatcher's focused window doesn't raise the window,
|
|
// setting it to a top-level window doesn't need to do anything.
|
|
nsCOMPtr<nsIDOMElement> frameElement = window->GetFrameElementInternal();
|
|
if (frameElement)
|
|
return fm->SetFocus(frameElement, 0);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXULCommandDispatcher::AdvanceFocus()
|
|
{
|
|
return AdvanceFocusIntoSubtree(nsnull);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXULCommandDispatcher::RewindFocus()
|
|
{
|
|
nsCOMPtr<nsPIDOMWindow> win;
|
|
GetRootFocusedContentAndWindow(getter_AddRefs(win));
|
|
|
|
nsCOMPtr<nsIDOMElement> result;
|
|
nsIFocusManager* fm = nsFocusManager::GetFocusManager();
|
|
if (fm)
|
|
return fm->MoveFocus(win, nsnull, nsIFocusManager::MOVEFOCUS_BACKWARD,
|
|
0, getter_AddRefs(result));
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXULCommandDispatcher::AdvanceFocusIntoSubtree(nsIDOMElement* aElt)
|
|
{
|
|
nsCOMPtr<nsPIDOMWindow> win;
|
|
GetRootFocusedContentAndWindow(getter_AddRefs(win));
|
|
|
|
nsCOMPtr<nsIDOMElement> result;
|
|
nsIFocusManager* fm = nsFocusManager::GetFocusManager();
|
|
if (fm)
|
|
return fm->MoveFocus(win, aElt, nsIFocusManager::MOVEFOCUS_FORWARD,
|
|
0, getter_AddRefs(result));
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXULCommandDispatcher::AddCommandUpdater(nsIDOMElement* aElement,
|
|
const nsAString& aEvents,
|
|
const nsAString& aTargets)
|
|
{
|
|
NS_PRECONDITION(aElement != nsnull, "null ptr");
|
|
if (! aElement)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
nsresult rv = nsContentUtils::CheckSameOrigin(mDocument, aElement);
|
|
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
|
|
Updater* updater = mUpdaters;
|
|
Updater** link = &mUpdaters;
|
|
|
|
while (updater) {
|
|
if (updater->mElement == aElement) {
|
|
|
|
#ifdef NS_DEBUG
|
|
if (PR_LOG_TEST(gLog, PR_LOG_NOTICE)) {
|
|
nsCAutoString eventsC, targetsC, aeventsC, atargetsC;
|
|
eventsC.AssignWithConversion(updater->mEvents);
|
|
targetsC.AssignWithConversion(updater->mTargets);
|
|
CopyUTF16toUTF8(aEvents, aeventsC);
|
|
CopyUTF16toUTF8(aTargets, atargetsC);
|
|
PR_LOG(gLog, PR_LOG_NOTICE,
|
|
("xulcmd[%p] replace %p(events=%s targets=%s) with (events=%s targets=%s)",
|
|
this, aElement,
|
|
eventsC.get(),
|
|
targetsC.get(),
|
|
aeventsC.get(),
|
|
atargetsC.get()));
|
|
}
|
|
#endif
|
|
|
|
// If the updater was already in the list, then replace
|
|
// (?) the 'events' and 'targets' filters with the new
|
|
// specification.
|
|
updater->mEvents = aEvents;
|
|
updater->mTargets = aTargets;
|
|
return NS_OK;
|
|
}
|
|
|
|
link = &(updater->mNext);
|
|
updater = updater->mNext;
|
|
}
|
|
#ifdef NS_DEBUG
|
|
if (PR_LOG_TEST(gLog, PR_LOG_NOTICE)) {
|
|
nsCAutoString aeventsC, atargetsC;
|
|
CopyUTF16toUTF8(aEvents, aeventsC);
|
|
CopyUTF16toUTF8(aTargets, atargetsC);
|
|
|
|
PR_LOG(gLog, PR_LOG_NOTICE,
|
|
("xulcmd[%p] add %p(events=%s targets=%s)",
|
|
this, aElement,
|
|
aeventsC.get(),
|
|
atargetsC.get()));
|
|
}
|
|
#endif
|
|
|
|
// If we get here, this is a new updater. Append it to the list.
|
|
updater = new Updater(aElement, aEvents, aTargets);
|
|
if (! updater)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
*link = updater;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXULCommandDispatcher::RemoveCommandUpdater(nsIDOMElement* aElement)
|
|
{
|
|
NS_PRECONDITION(aElement != nsnull, "null ptr");
|
|
if (! aElement)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
Updater* updater = mUpdaters;
|
|
Updater** link = &mUpdaters;
|
|
|
|
while (updater) {
|
|
if (updater->mElement == aElement) {
|
|
#ifdef NS_DEBUG
|
|
if (PR_LOG_TEST(gLog, PR_LOG_NOTICE)) {
|
|
nsCAutoString eventsC, targetsC;
|
|
eventsC.AssignWithConversion(updater->mEvents);
|
|
targetsC.AssignWithConversion(updater->mTargets);
|
|
PR_LOG(gLog, PR_LOG_NOTICE,
|
|
("xulcmd[%p] remove %p(events=%s targets=%s)",
|
|
this, aElement,
|
|
eventsC.get(),
|
|
targetsC.get()));
|
|
}
|
|
#endif
|
|
|
|
*link = updater->mNext;
|
|
delete updater;
|
|
return NS_OK;
|
|
}
|
|
|
|
link = &(updater->mNext);
|
|
updater = updater->mNext;
|
|
}
|
|
|
|
// Hmm. Not found. Oh well.
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXULCommandDispatcher::UpdateCommands(const nsAString& aEventName)
|
|
{
|
|
nsAutoString id;
|
|
nsCOMPtr<nsIDOMElement> element;
|
|
GetFocusedElement(getter_AddRefs(element));
|
|
if (element) {
|
|
nsresult rv = element->GetAttribute(NS_LITERAL_STRING("id"), id);
|
|
NS_ASSERTION(NS_SUCCEEDED(rv), "unable to get element's id");
|
|
if (NS_FAILED(rv)) return rv;
|
|
}
|
|
|
|
for (Updater* updater = mUpdaters; updater != nsnull; updater = updater->mNext) {
|
|
// Skip any nodes that don't match our 'events' or 'targets'
|
|
// filters.
|
|
if (! Matches(updater->mEvents, aEventName))
|
|
continue;
|
|
|
|
if (! Matches(updater->mTargets, id))
|
|
continue;
|
|
|
|
nsCOMPtr<nsIContent> content = do_QueryInterface(updater->mElement);
|
|
NS_ASSERTION(content != nsnull, "not an nsIContent");
|
|
if (! content)
|
|
return NS_ERROR_UNEXPECTED;
|
|
|
|
nsCOMPtr<nsIDocument> document = content->GetDocument();
|
|
|
|
NS_ASSERTION(document != nsnull, "element has no document");
|
|
if (! document)
|
|
continue;
|
|
|
|
#ifdef NS_DEBUG
|
|
if (PR_LOG_TEST(gLog, PR_LOG_NOTICE)) {
|
|
nsCAutoString aeventnameC;
|
|
CopyUTF16toUTF8(aEventName, aeventnameC);
|
|
PR_LOG(gLog, PR_LOG_NOTICE,
|
|
("xulcmd[%p] update %p event=%s",
|
|
this, updater->mElement.get(),
|
|
aeventnameC.get()));
|
|
}
|
|
#endif
|
|
|
|
nsCOMPtr<nsIPresShell> shell = document->GetPrimaryShell();
|
|
if (shell) {
|
|
|
|
// Retrieve the context in which our DOM event will fire.
|
|
nsRefPtr<nsPresContext> context = shell->GetPresContext();
|
|
|
|
// Handle the DOM event
|
|
nsEventStatus status = nsEventStatus_eIgnore;
|
|
|
|
nsEvent event(PR_TRUE, NS_XUL_COMMAND_UPDATE);
|
|
|
|
nsEventDispatcher::Dispatch(content, context, &event, nsnull, &status);
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
PRBool
|
|
nsXULCommandDispatcher::Matches(const nsString& aList,
|
|
const nsAString& aElement)
|
|
{
|
|
if (aList.EqualsLiteral("*"))
|
|
return PR_TRUE; // match _everything_!
|
|
|
|
PRInt32 indx = aList.Find(PromiseFlatString(aElement));
|
|
if (indx == -1)
|
|
return PR_FALSE; // not in the list at all
|
|
|
|
// okay, now make sure it's not a substring snafu; e.g., 'ur'
|
|
// found inside of 'blur'.
|
|
if (indx > 0) {
|
|
PRUnichar ch = aList[indx - 1];
|
|
if (! nsCRT::IsAsciiSpace(ch) && ch != PRUnichar(','))
|
|
return PR_FALSE;
|
|
}
|
|
|
|
if (indx + aElement.Length() < aList.Length()) {
|
|
PRUnichar ch = aList[indx + aElement.Length()];
|
|
if (! nsCRT::IsAsciiSpace(ch) && ch != PRUnichar(','))
|
|
return PR_FALSE;
|
|
}
|
|
|
|
return PR_TRUE;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXULCommandDispatcher::GetControllers(nsIControllers** aResult)
|
|
{
|
|
nsCOMPtr<nsPIWindowRoot> root = GetWindowRoot();
|
|
NS_ENSURE_TRUE(root, NS_ERROR_FAILURE);
|
|
|
|
return root->GetControllers(aResult);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXULCommandDispatcher::GetControllerForCommand(const char *aCommand, nsIController** _retval)
|
|
{
|
|
nsCOMPtr<nsPIWindowRoot> root = GetWindowRoot();
|
|
NS_ENSURE_TRUE(root, NS_ERROR_FAILURE);
|
|
|
|
return root->GetControllerForCommand(aCommand, _retval);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXULCommandDispatcher::GetSuppressFocusScroll(PRBool* aSuppressFocusScroll)
|
|
{
|
|
*aSuppressFocusScroll = PR_FALSE;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXULCommandDispatcher::SetSuppressFocusScroll(PRBool aSuppressFocusScroll)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|