235 lines
7.4 KiB
C++
235 lines
7.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Netscape 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/NPL/
|
|
*
|
|
* 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):
|
|
*
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either 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 NPL, 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 NPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#include "nsString.h"
|
|
|
|
#include "nsIController.h"
|
|
#include "nsIObserver.h"
|
|
#include "nsIObserverList.h"
|
|
|
|
#include "nsIComponentManager.h"
|
|
|
|
#include "nsIDOMWindow.h"
|
|
#include "nsPIDOMWindow.h"
|
|
#include "nsIFocusController.h"
|
|
|
|
#include "nsCommandManager.h"
|
|
|
|
|
|
nsCommandManager::nsCommandManager()
|
|
: mWindow(nsnull)
|
|
{
|
|
NS_INIT_ISUPPORTS();
|
|
/* member initializers and constructor code */
|
|
}
|
|
|
|
nsCommandManager::~nsCommandManager()
|
|
{
|
|
/* destructor code */
|
|
}
|
|
|
|
|
|
NS_IMPL_ISUPPORTS3(nsCommandManager, nsICommandManager, nsPICommandUpdater, nsISupportsWeakReference)
|
|
|
|
#if 0
|
|
#pragma mark -
|
|
#endif
|
|
|
|
/* void init (in nsIDOMWindow aWindow); */
|
|
NS_IMETHODIMP
|
|
nsCommandManager::Init(nsIDOMWindow *aWindow)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aWindow);
|
|
|
|
NS_ASSERTION(aWindow, "Need non-null window here");
|
|
mWindow = aWindow; // weak ptr
|
|
return NS_OK;
|
|
}
|
|
|
|
/* void commandStatusChanged (in DOMString aCommandName, in long aChangeFlags); */
|
|
NS_IMETHODIMP
|
|
nsCommandManager::CommandStatusChanged(const nsAReadableString & aCommandName, PRInt32 aChangeFlags)
|
|
{
|
|
nsStringKey hashKey(aCommandName);
|
|
|
|
nsPromiseFlatString flatCommand = PromiseFlatString(aCommandName);
|
|
|
|
nsresult rv = NS_OK;
|
|
nsCOMPtr<nsISupports> commandSupports = getter_AddRefs(mCommandObserversTable.Get(&hashKey));
|
|
nsCOMPtr<nsIObserverList> commandObservers = do_QueryInterface(commandSupports);
|
|
if (commandObservers)
|
|
{
|
|
nsCOMPtr<nsIEnumerator> observers;
|
|
rv = commandObservers->EnumerateObserverList(getter_AddRefs(observers));
|
|
if (observers)
|
|
{
|
|
rv = observers->First();
|
|
|
|
// Continue until error or end of list.
|
|
while (observers->IsDone() != NS_OK && NS_SUCCEEDED(rv))
|
|
{
|
|
nsCOMPtr<nsISupports> itemSupports;
|
|
rv = observers->CurrentItem(getter_AddRefs(itemSupports));
|
|
nsCOMPtr<nsIObserver> itemObserver = do_QueryInterface(itemSupports);
|
|
if (itemObserver)
|
|
{
|
|
// should we get the command state to pass here? This might be expensive.
|
|
itemObserver->Observe((nsICommandManager *)this, flatCommand.get(), NS_LITERAL_STRING("").get());
|
|
}
|
|
|
|
rv = observers->Next();
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
#if 0
|
|
#pragma mark -
|
|
#endif
|
|
|
|
/* void addCommandObserver (in nsIObserver aCommandObserver, in wstring aCommandToObserve); */
|
|
NS_IMETHODIMP
|
|
nsCommandManager::AddCommandObserver(nsIObserver *aCommandObserver, const nsAReadableString & aCommandToObserve)
|
|
{
|
|
NS_ENSURE_ARG(aCommandObserver);
|
|
|
|
nsresult rv = NS_OK;
|
|
|
|
// XXX todo: handle special cases of aCommandToObserve being null, or empty
|
|
|
|
// for each command in the table, we make a list of observers for that command
|
|
nsStringKey hashKey(aCommandToObserve);
|
|
|
|
nsCOMPtr<nsISupports> commandSupports = getter_AddRefs(mCommandObserversTable.Get(&hashKey));
|
|
nsCOMPtr<nsIObserverList> commandObservers = do_QueryInterface(commandSupports);
|
|
if (!commandObservers)
|
|
{
|
|
commandObservers = do_CreateInstance("@mozilla.org/xpcom/observer-list;1", &rv);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
rv = mCommandObserversTable.Put(&hashKey, commandObservers);
|
|
if (NS_FAILED(rv)) return rv;
|
|
}
|
|
|
|
return commandObservers->AddObserver(aCommandObserver);
|
|
}
|
|
|
|
/* void removeCommandObserver (in nsIObserver aCommandObserver, in wstring aCommandObserved); */
|
|
NS_IMETHODIMP
|
|
nsCommandManager::RemoveCommandObserver(nsIObserver *aCommandObserver, const nsAReadableString & aCommandObserved)
|
|
{
|
|
NS_ENSURE_ARG(aCommandObserver);
|
|
|
|
// XXX todo: handle special cases of aCommandToObserve being null, or empty
|
|
nsStringKey hashKey(aCommandObserved);
|
|
|
|
nsCOMPtr<nsISupports> commandSupports = getter_AddRefs(mCommandObserversTable.Get(&hashKey));
|
|
nsCOMPtr<nsIObserverList> commandObservers = do_QueryInterface(commandSupports);
|
|
if (!commandObservers)
|
|
return NS_ERROR_UNEXPECTED;
|
|
|
|
return commandObservers->RemoveObserver(aCommandObserver);
|
|
}
|
|
|
|
/* boolean isCommandSupported (in wstring aCommandName); */
|
|
NS_IMETHODIMP
|
|
nsCommandManager::IsCommandSupported(const nsAReadableString & aCommandName, PRBool *outCommandSupported)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(outCommandSupported);
|
|
|
|
nsCOMPtr<nsIController> controller;
|
|
nsresult rv = GetControllerForCommand(aCommandName, getter_AddRefs(controller));
|
|
*outCommandSupported = (controller.get() != nsnull);
|
|
return NS_OK;
|
|
}
|
|
|
|
/* boolean isCommandEnabled (in wstring aCommandName); */
|
|
NS_IMETHODIMP
|
|
nsCommandManager::IsCommandEnabled(const nsAReadableString & aCommandName, PRBool *outCommandEnabled)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(outCommandEnabled);
|
|
|
|
PRBool commandEnabled = PR_FALSE;
|
|
|
|
nsCOMPtr<nsIController> controller;
|
|
nsresult rv = GetControllerForCommand(aCommandName, getter_AddRefs(controller));
|
|
if (controller)
|
|
{
|
|
controller->IsCommandEnabled(aCommandName, &commandEnabled);
|
|
}
|
|
*outCommandEnabled = commandEnabled;
|
|
return NS_OK;
|
|
}
|
|
|
|
/* void doCommand (in wstring aCommandName, in wstring aCommandParams); */
|
|
NS_IMETHODIMP
|
|
nsCommandManager::DoCommand(const nsAReadableString & aCommandName)
|
|
{
|
|
nsCOMPtr<nsIController> controller;
|
|
nsresult rv = GetControllerForCommand(aCommandName, getter_AddRefs(controller));
|
|
if (!controller)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
return controller->DoCommand(aCommandName);
|
|
}
|
|
|
|
#ifdef XP_MAC
|
|
#pragma mark -
|
|
#endif
|
|
|
|
NS_IMETHODIMP
|
|
nsCommandManager::GetControllerForCommand(const nsAReadableString& aCommand, nsIController** outController)
|
|
{
|
|
nsresult rv = NS_ERROR_FAILURE;
|
|
|
|
nsCOMPtr<nsPIDOMWindow> window = do_QueryInterface(mWindow);
|
|
if (!window)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsCOMPtr<nsIFocusController> focusController;
|
|
rv = window->GetRootFocusController(getter_AddRefs(focusController));
|
|
if (!focusController)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
return focusController->GetControllerForCommand(aCommand, getter_AddRefs(outController));
|
|
}
|
|
|