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102 lines
3.4 KiB
C++
102 lines
3.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* vim:expandtab:shiftwidth=4:tabstop=4:
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*/
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/* ***** BEGIN LICENSE BLOCK *****
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* 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 License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Christopher Blizzard
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* <blizzard@mozilla.org>. Portions created by the Initial Developer
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* are Copyright (C) 2001 the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef __nsGdkKeyUtils_h__
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#define __nsGdkKeyUtils_h__
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#include "nsEvent.h"
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#include <gdk/gdk.h>
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int GdkKeyCodeToDOMKeyCode (int aKeysym);
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int DOMKeyCodeToGdkKeyCode (int aKeysym);
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PRUint32 nsConvertCharCodeToUnicode (GdkEventKey* aEvent);
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namespace mozilla {
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namespace widget {
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/**
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* KeymapWrapper is a wrapper class of GdkKeymap. GdkKeymap doesn't support
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* all our needs, therefore, we need to access lower level APIs.
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* But such code is usually complex and might be slow. Against such issues,
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* we should cache some information.
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*
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* This class provides only static methods. The methods is using internal
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* singleton instance which is initialized by default GdkKeymap. When the
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* GdkKeymap is destroyed, the singleton instance will be destroyed.
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*/
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class KeymapWrapper
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{
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protected:
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/**
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* GetInstance() returns a KeymapWrapper instance.
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*
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* @return A singleton instance of KeymapWrapper.
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*/
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static KeymapWrapper* GetInstance();
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KeymapWrapper();
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~KeymapWrapper();
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bool mInitialized;
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/**
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* mGdkKeymap is a wrapped instance by this class.
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*/
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GdkKeymap* mGdkKeymap;
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/**
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* Pointer of the singleton instance.
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*/
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static KeymapWrapper* sInstance;
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/**
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* Signal handlers.
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*/
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static void OnKeysChanged(GdkKeymap* aKeymap, KeymapWrapper* aKeymapWrapper);
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static void OnDestroyKeymap(KeymapWrapper* aKeymapWrapper,
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GdkKeymap *aGdkKeymap);
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};
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} // namespace widget
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} // namespace mozilla
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#endif /* __nsGdkKeyUtils_h__ */
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