264 lines
8.3 KiB
C++
264 lines
8.3 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 "nsIComponentManager.h"
|
|
|
|
#include "nsIDOMWindow.h"
|
|
#include "nsPIDOMWindow.h"
|
|
#include "nsIFocusController.h"
|
|
|
|
#include "nsSupportsArray.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 char * aCommandName)
|
|
{
|
|
nsCStringKey hashKey(aCommandName);
|
|
|
|
|
|
nsresult rv = NS_OK;
|
|
nsCOMPtr<nsISupports> commandSupports = getter_AddRefs(mCommandObserversTable.Get(&hashKey));
|
|
nsCOMPtr<nsISupportsArray> commandObservers = do_QueryInterface(commandSupports);
|
|
if (commandObservers)
|
|
{
|
|
PRUint32 numItems;
|
|
rv = commandObservers->Count(&numItems);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
for (PRUint32 i = 0; i < numItems; i ++)
|
|
{
|
|
nsCOMPtr<nsISupports> itemSupports;
|
|
rv = commandObservers->GetElementAt(i, getter_AddRefs(itemSupports));
|
|
if (NS_FAILED(rv)) break;
|
|
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, aCommandName,NS_LITERAL_STRING("command_status_changed").get());
|
|
}
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
#if 0
|
|
#pragma mark -
|
|
#endif
|
|
|
|
/* void addCommandObserver (in nsIObserver aCommandObserver, in wstring aCommandToObserve); */
|
|
NS_IMETHODIMP
|
|
nsCommandManager::AddCommandObserver(nsIObserver *aCommandObserver, const char *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
|
|
nsCStringKey hashKey(aCommandToObserve);
|
|
|
|
nsCOMPtr<nsISupports> commandSupports = getter_AddRefs(mCommandObserversTable.Get(&hashKey));
|
|
nsCOMPtr<nsISupportsArray> commandObservers = do_QueryInterface(commandSupports);
|
|
if (!commandObservers)
|
|
{
|
|
rv = NS_NewISupportsArray(getter_AddRefs(commandObservers));
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
commandSupports = do_QueryInterface(commandObservers);
|
|
rv = mCommandObserversTable.Put(&hashKey, commandSupports);
|
|
if (NS_FAILED(rv)) return rv;
|
|
}
|
|
|
|
// need to check that this command observer hasn't already been registered
|
|
nsCOMPtr<nsISupports> observerAsSupports = do_QueryInterface(aCommandObserver);
|
|
PRInt32 existingIndex = commandObservers->IndexOf(observerAsSupports);
|
|
if (existingIndex == -1)
|
|
rv = commandObservers->AppendElement(observerAsSupports);
|
|
else
|
|
NS_WARNING("Registering command observer twice on the same command");
|
|
|
|
return rv;
|
|
}
|
|
|
|
/* void removeCommandObserver (in nsIObserver aCommandObserver, in wstring aCommandObserved); */
|
|
NS_IMETHODIMP
|
|
nsCommandManager::RemoveCommandObserver(nsIObserver *aCommandObserver, const char *aCommandObserved)
|
|
{
|
|
NS_ENSURE_ARG(aCommandObserver);
|
|
|
|
// XXX todo: handle special cases of aCommandToObserve being null, or empty
|
|
nsCStringKey hashKey(aCommandObserved);
|
|
|
|
nsCOMPtr<nsISupports> commandSupports = getter_AddRefs(mCommandObserversTable.Get(&hashKey));
|
|
nsCOMPtr<nsISupportsArray> commandObservers = do_QueryInterface(commandSupports);
|
|
if (!commandObservers)
|
|
return NS_ERROR_UNEXPECTED;
|
|
|
|
nsresult removed = commandObservers->RemoveElement(aCommandObserver);
|
|
return (removed) ? NS_OK : NS_ERROR_FAILURE;
|
|
}
|
|
|
|
/* boolean isCommandSupported (in wstring aCommandName); */
|
|
NS_IMETHODIMP
|
|
nsCommandManager::IsCommandSupported(const char *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 char *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 getCommandState (in DOMString aCommandName, inout nsICommandParams aCommandParams); */
|
|
NS_IMETHODIMP
|
|
nsCommandManager::GetCommandState(const char *aCommandName, nsICommandParams *aCommandParams)
|
|
{
|
|
nsCOMPtr<nsIController> controller;
|
|
nsAutoString tValue;
|
|
nsresult rv = GetControllerForCommand(aCommandName, getter_AddRefs(controller));
|
|
if (!controller)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsCOMPtr<nsICommandController> commandController = do_QueryInterface(controller);
|
|
if (commandController)
|
|
rv = commandController->GetCommandState(aCommandName,aCommandParams);
|
|
else
|
|
rv = NS_ERROR_NOT_IMPLEMENTED;
|
|
return rv;
|
|
}
|
|
|
|
/* void doCommand (nsICommandParams aCommandParams); */
|
|
|
|
NS_IMETHODIMP
|
|
nsCommandManager::DoCommand(const char *aCommandName, nsICommandParams *aCommandParams)
|
|
{
|
|
nsCOMPtr<nsIController> controller;
|
|
nsresult rv = GetControllerForCommand(aCommandName, getter_AddRefs(controller));
|
|
if (!controller)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsCOMPtr<nsICommandController> commandController = do_QueryInterface(controller);
|
|
if (commandController)
|
|
rv = commandController->DoCommand(aCommandName,aCommandParams);
|
|
else
|
|
rv = controller->DoCommand(aCommandName);
|
|
return rv;
|
|
}
|
|
|
|
#ifdef XP_MAC
|
|
#pragma mark -
|
|
#endif
|
|
|
|
nsresult
|
|
nsCommandManager::GetControllerForCommand(const char *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, outController);
|
|
}
|
|
|