gecko-dev/editor/libeditor/base/nsEditorCommands.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ----- BEGIN LICENSE BLOCK -----
* 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
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* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
* 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.
*
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* The Initial Developer of the Original Code is Netscape Communications Corporation.
* Portions created by Netscape Communications Corporation are
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* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
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* Contributor(s):
*
* 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 LGPL or the GPL. 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 ----- */
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#ifndef nsIEditorCommand_h_
#define nsIEditorCommand_h_
#include "nsCOMPtr.h"
#include "nsIControllerCommand.h"
#include "nsIAtom.h"
// This is a virtual base class for commands registered with the editor controller.
// Note that such commands can be shared by more than on editor instance, so
// MUST be stateless. Any state must be stored via the refCon (an nsIEditor).
class nsBaseEditorCommand : public nsIControllerCommand
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{
public:
nsBaseEditorCommand();
virtual ~nsBaseEditorCommand() {}
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NS_DECL_ISUPPORTS
NS_IMETHOD IsCommandEnabled(const nsAReadableString & aCommandName, nsISupports *aCommandRefCon, PRBool *_retval) = 0;
NS_IMETHOD DoCommand(const nsAReadableString & aCommandName, nsISupports *aCommandRefCon) = 0;
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};
#define NS_DECL_EDITOR_COMMAND(_cmd) \
class _cmd : public nsBaseEditorCommand \
{ \
public: \
NS_IMETHOD IsCommandEnabled(const nsAReadableString & aCommandName, nsISupports *aCommandRefCon, PRBool *_retval); \
NS_IMETHOD DoCommand(const nsAReadableString & aCommandName, nsISupports *aCommandRefCon); \
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};
// basic editor commands
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NS_DECL_EDITOR_COMMAND(nsUndoCommand)
NS_DECL_EDITOR_COMMAND(nsRedoCommand)
NS_DECL_EDITOR_COMMAND(nsCutCommand)
NS_DECL_EDITOR_COMMAND(nsCutOrDeleteCommand)
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NS_DECL_EDITOR_COMMAND(nsCopyCommand)
NS_DECL_EDITOR_COMMAND(nsCopyOrDeleteCommand)
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NS_DECL_EDITOR_COMMAND(nsPasteCommand)
NS_DECL_EDITOR_COMMAND(nsDeleteCommand)
NS_DECL_EDITOR_COMMAND(nsSelectAllCommand)
NS_DECL_EDITOR_COMMAND(nsSelectionMoveCommands)
#if 0
// template for new command
NS_IMETHODIMP
nsFooCommand::IsCommandEnabled(const nsAReadableString & aCommandName, nsISupports *aCommandRefCon, PRBool *_retval)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsFooCommand::DoCommand(const nsAReadableString & aCommandName, const nsAReadableString & aCommandParams, nsISupports *aCommandRefCon)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
#endif
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#endif // nsIEditorCommand_h_