gecko-dev/editor/libeditor/base/nsEditorController.cpp
2002-09-12 19:09:19 +00:00

254 lines
10 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 Communicator client 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):
* Pierre Phaneuf <pp@ludusdesign.com>
* Ryan Cassin <rcassin@supernova.org>
*
*
* 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 "nsIComponentManager.h"
#include "nsEditorController.h"
#include "nsIEditor.h"
#include "nsEditorCommands.h"
NS_IMPL_ADDREF(nsEditorController)
NS_IMPL_RELEASE(nsEditorController)
NS_INTERFACE_MAP_BEGIN(nsEditorController)
NS_INTERFACE_MAP_ENTRY(nsIController)
NS_INTERFACE_MAP_ENTRY(nsICommandController)
NS_INTERFACE_MAP_ENTRY(nsIEditorController)
NS_INTERFACE_MAP_ENTRY(nsIInterfaceRequestor)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIEditorController)
NS_INTERFACE_MAP_END
nsEditorController::nsEditorController()
: mCommandRefCon(nsnull)
{
NS_INIT_ISUPPORTS();
}
nsEditorController::~nsEditorController()
{
}
NS_IMETHODIMP nsEditorController::Init(nsISupports *aCommandRefCon)
{
nsresult rv;
// get our ref to the singleton command manager
rv = GetEditorCommandManager(getter_AddRefs(mCommandManager));
if (NS_FAILED(rv)) return rv;
mCommandRefCon = aCommandRefCon; // no addref
return NS_OK;
}
NS_IMETHODIMP nsEditorController::SetCommandRefCon(nsISupports *aCommandRefCon)
{
mCommandRefCon = aCommandRefCon; // no addref
return NS_OK;
}
NS_IMETHODIMP nsEditorController::GetInterface(const nsIID & aIID, void * *result)
{
NS_ENSURE_ARG_POINTER(result);
if (NS_SUCCEEDED(QueryInterface(aIID, result)))
return NS_OK;
if (mCommandManager && aIID.Equals(NS_GET_IID(nsIControllerCommandManager)))
return mCommandManager->QueryInterface(aIID, result);
return NS_NOINTERFACE;
}
#define NS_REGISTER_ONE_COMMAND(_cmdClass, _cmdName) \
{ \
_cmdClass* theCmd; \
NS_NEWXPCOM(theCmd, _cmdClass); \
if (!theCmd) return NS_ERROR_OUT_OF_MEMORY; \
rv = inCommandManager->RegisterCommand(_cmdName, \
NS_STATIC_CAST(nsIControllerCommand *, theCmd)); \
}
#define NS_REGISTER_FIRST_COMMAND(_cmdClass, _cmdName) \
{ \
_cmdClass* theCmd; \
NS_NEWXPCOM(theCmd, _cmdClass); \
if (!theCmd) return NS_ERROR_OUT_OF_MEMORY; \
rv = inCommandManager->RegisterCommand(_cmdName, \
NS_STATIC_CAST(nsIControllerCommand *, theCmd));
#define NS_REGISTER_NEXT_COMMAND(_cmdClass, _cmdName) \
rv = inCommandManager->RegisterCommand(_cmdName, \
NS_STATIC_CAST(nsIControllerCommand *, theCmd));
#define NS_REGISTER_LAST_COMMAND(_cmdClass, _cmdName) \
rv = inCommandManager->RegisterCommand(_cmdName, \
NS_STATIC_CAST(nsIControllerCommand *, theCmd)); \
}
// static
nsresult nsEditorController::RegisterEditorCommands(nsIControllerCommandManager *inCommandManager)
{
nsresult rv;
// now register all our commands
// These are commands that will be used in text widgets, and in composer
NS_REGISTER_ONE_COMMAND(nsUndoCommand, "cmd_undo");
NS_REGISTER_ONE_COMMAND(nsRedoCommand, "cmd_redo");
NS_REGISTER_ONE_COMMAND(nsCutCommand, "cmd_cut");
NS_REGISTER_ONE_COMMAND(nsCutOrDeleteCommand, "cmd_cutOrDelete");
NS_REGISTER_ONE_COMMAND(nsCopyCommand, "cmd_copy");
NS_REGISTER_ONE_COMMAND(nsCopyOrDeleteCommand, "cmd_copyOrDelete");
NS_REGISTER_ONE_COMMAND(nsSelectAllCommand, "cmd_selectAll");
NS_REGISTER_ONE_COMMAND(nsPasteCommand, "cmd_paste");
NS_REGISTER_FIRST_COMMAND(nsDeleteCommand, "cmd_delete");
NS_REGISTER_NEXT_COMMAND(nsDeleteCommand, "cmd_deleteCharBackward");
NS_REGISTER_NEXT_COMMAND(nsDeleteCommand, "cmd_deleteCharForward");
NS_REGISTER_NEXT_COMMAND(nsDeleteCommand, "cmd_deleteWordBackward");
NS_REGISTER_NEXT_COMMAND(nsDeleteCommand, "cmd_deleteWordForward");
NS_REGISTER_NEXT_COMMAND(nsDeleteCommand, "cmd_deleteToBeginningOfLine");
NS_REGISTER_LAST_COMMAND(nsDeleteCommand, "cmd_deleteToEndOfLine");
NS_REGISTER_FIRST_COMMAND(nsSelectionMoveCommands, "cmd_scrollTop");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_scrollBottom");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_moveTop");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_moveBottom");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_selectTop");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_selectBottom");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_lineNext");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_linePrevious");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_selectLineNext");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_selectLinePrevious");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_charPrevious");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_charNext");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_selectCharPrevious");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_selectCharNext");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_beginLine");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_endLine");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_selectBeginLine");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_selectEndLine");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_wordPrevious");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_wordNext");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_selectWordPrevious");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_selectWordNext");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_scrollPageUp");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_scrollPageDown");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_scrollLineUp");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_scrollLineDown");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_movePageUp");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_movePageDown");
NS_REGISTER_NEXT_COMMAND(nsSelectionMoveCommands, "cmd_selectPageUp");
NS_REGISTER_LAST_COMMAND(nsSelectionMoveCommands, "cmd_selectPageDown");
return NS_OK;
}
/* =======================================================================
* nsIController
* ======================================================================= */
NS_IMETHODIMP nsEditorController::IsCommandEnabled(const char *aCommand, PRBool *aResult)
{
NS_ENSURE_ARG_POINTER(aResult);
return mCommandManager->IsCommandEnabled(aCommand, mCommandRefCon, aResult);
}
NS_IMETHODIMP nsEditorController::SupportsCommand(const char *aCommand, PRBool *aResult)
{
NS_ENSURE_ARG_POINTER(aResult);
return mCommandManager->SupportsCommand(aCommand, mCommandRefCon, aResult);
}
NS_IMETHODIMP nsEditorController::DoCommand(const char *aCommand)
{
return mCommandManager->DoCommand(aCommand, mCommandRefCon);
}
NS_IMETHODIMP nsEditorController::DoCommandWithParams(const char *aCommand, nsICommandParams *aParams)
{
return mCommandManager->DoCommandParams(aCommand, aParams, mCommandRefCon);
}
NS_IMETHODIMP nsEditorController::GetCommandStateWithParams(const char *aCommand, nsICommandParams *aParams)
{
return mCommandManager->GetCommandState(aCommand, aParams, mCommandRefCon);
}
NS_IMETHODIMP nsEditorController::OnEvent(const char * aEventName)
{
return NS_OK;
}
nsWeakPtr nsEditorController::sEditorCommandManager = NULL;
// static
nsresult nsEditorController::GetEditorCommandManager(nsIControllerCommandManager* *outCommandManager)
{
NS_ENSURE_ARG_POINTER(outCommandManager);
nsCOMPtr<nsIControllerCommandManager> cmdManager = do_QueryReferent(sEditorCommandManager);
if (!cmdManager)
{
nsresult rv;
cmdManager = do_CreateInstance(NS_CONTROLLERCOMMANDMANAGER_CONTRACTID, &rv);
if (NS_FAILED(rv)) return rv;
// register the commands. This just happens once per instance
rv = nsEditorController::RegisterEditorCommands(cmdManager);
if (NS_FAILED(rv)) return rv;
// save the singleton in our static weak reference
sEditorCommandManager = getter_AddRefs(NS_GetWeakReference(cmdManager, &rv));
if (NS_FAILED(rv)) return rv;
}
NS_ADDREF(*outCommandManager = cmdManager);
return NS_OK;
}