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109 lines
4.5 KiB
C++
109 lines
4.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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
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* Mozilla Japan.
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* Portions created by the Initial Developer are Copyright (C) 2006
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Masayuki Nakano <masayuki@d-toybox.com>
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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 of the GNU General Public License Version 2 or later (the "GPL"),
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* or 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 nsIMEStateManager_h__
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#define nsIMEStateManager_h__
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#include "nscore.h"
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class nsIContent;
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class nsPIDOMWindow;
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class nsPresContext;
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class nsIWidget;
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class nsTextStateManager;
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class nsISelection;
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/*
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* IME state manager
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*/
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class nsIMEStateManager
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{
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public:
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static nsresult OnDestroyPresContext(nsPresContext* aPresContext);
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static nsresult OnRemoveContent(nsPresContext* aPresContext,
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nsIContent* aContent);
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static nsresult OnChangeFocus(nsPresContext* aPresContext,
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nsIContent* aContent,
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PRUint32 aReason);
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static void OnInstalledMenuKeyboardListener(PRBool aInstalling);
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// These two methods manage focus and selection/text observers.
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// They are separate from OnChangeFocus above because this offers finer
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// control compared to having the two methods incorporated into OnChangeFocus
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// OnTextStateBlur should be called *before* NS_BLUR_CONTENT fires
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// aPresContext is the nsPresContext receiving focus (not lost focus)
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// aContent is the nsIContent receiving focus (not lost focus)
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// aPresContext and/or aContent may be null
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static nsresult OnTextStateBlur(nsPresContext* aPresContext,
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nsIContent* aContent);
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// OnTextStateFocus should be called *after* NS_FOCUS_CONTENT fires
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// aPresContext is the nsPresContext receiving focus
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// aContent is the nsIContent receiving focus
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static nsresult OnTextStateFocus(nsPresContext* aPresContext,
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nsIContent* aContent);
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// Get the focused editor's selection and root
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static nsresult GetFocusSelectionAndRoot(nsISelection** aSel,
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nsIContent** aRoot);
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// This method updates the current IME state. However, if the enabled state
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// isn't changed by the new state, this method does nothing.
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// Note that this method changes the IME state of the active element in the
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// widget. So, the caller must have focus.
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// aNewIMEState must have an enabled state of nsIContent::IME_STATUS_*.
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// And optionally, it can have an open state of nsIContent::IME_STATUS_*.
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static void UpdateIMEState(PRUint32 aNewIMEState, nsIContent* aContent);
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protected:
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static void SetIMEState(PRUint32 aState, nsIContent* aContent,
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nsIWidget* aWidget, PRUint32 aReason);
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static PRUint32 GetNewIMEState(nsPresContext* aPresContext,
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nsIContent* aContent);
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static nsIWidget* GetWidget(nsPresContext* aPresContext);
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static nsIContent* sContent;
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static nsPresContext* sPresContext;
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static PRBool sInstalledMenuKeyboardListener;
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static PRBool sInSecureInputMode;
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static nsTextStateManager* sTextStateObserver;
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};
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#endif // nsIMEStateManager_h__
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