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1 /*
2  * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>
3  * Copyright (C) 2006 Zack Rusin <zack@kde.org>
4  * Copyright (C) 2006 Apple Computer, Inc.
5  * Copyright (C) 2010 Martin Robinson <mrobinson@webkit.org>
6  *
7  * All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
19  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
22  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
25  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
26  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29  */
30 
31 #ifndef EditorClientGtk_h
32 #define EditorClientGtk_h
33 
34 #include "EditorClient.h"
35 #include "TextCheckerClient.h"
36 
37 #include <wtf/Deque.h>
38 #include <wtf/Forward.h>
39 #include <wtf/gobject/GOwnPtr.h>
40 #include <wtf/gobject/GRefPtr.h>
41 
42 #if ENABLE(SPELLCHECK)
43 #include "TextCheckerClientEnchant.h"
44 #else
45 #include "EmptyClients.h"
46 #endif
47 
48 typedef struct _WebKitWebView WebKitWebView;
49 
50 namespace WebCore {
51 class Frame;
52 class KeyboardEvent;
53 }
54 
55 namespace WebKit {
56 
57 class EditorClient : public WebCore::EditorClient {
58     protected:
59         bool m_isInRedo;
60 
61         WTF::Deque<WTF::RefPtr<WebCore::EditCommand> > undoStack;
62         WTF::Deque<WTF::RefPtr<WebCore::EditCommand> > redoStack;
63 
64     public:
65         EditorClient(WebKitWebView*);
66         ~EditorClient();
webView()67         WebKitWebView* webView() { return m_webView; }
treatContextCommitAsKeyEvent()68         bool treatContextCommitAsKeyEvent() { return m_treatContextCommitAsKeyEvent; }
preventNextCompositionCommit()69         bool preventNextCompositionCommit() { return m_preventNextCompositionCommit; }
clearPendingComposition()70         void clearPendingComposition() { m_pendingComposition.set(0); }
hasPendingComposition()71         bool hasPendingComposition() { return m_pendingComposition; }
addPendingEditorCommand(const char * command)72         void addPendingEditorCommand(const char* command) { m_pendingEditorCommands.append(command); }
73         void updatePendingComposition(const char*);
74         void generateEditorCommands(const WebCore::KeyboardEvent*);
75         bool executePendingEditorCommands(WebCore::Frame*, bool);
76 
77         // from EditorClient
78         virtual void pageDestroyed();
79 
80         virtual bool shouldDeleteRange(WebCore::Range*);
81         virtual bool shouldShowDeleteInterface(WebCore::HTMLElement*);
82         virtual bool smartInsertDeleteEnabled();
83         virtual bool isSelectTrailingWhitespaceEnabled();
84         virtual bool isContinuousSpellCheckingEnabled();
85         virtual void toggleContinuousSpellChecking();
86         virtual bool isGrammarCheckingEnabled();
87         virtual void toggleGrammarChecking();
88         virtual int spellCheckerDocumentTag();
89 
90         virtual bool shouldBeginEditing(WebCore::Range*);
91         virtual bool shouldEndEditing(WebCore::Range*);
92         virtual bool shouldInsertNode(WebCore::Node*, WebCore::Range*, WebCore::EditorInsertAction);
93         virtual bool shouldInsertText(const WTF::String&, WebCore::Range*, WebCore::EditorInsertAction);
94         virtual bool shouldChangeSelectedRange(WebCore::Range* fromRange, WebCore::Range* toRange, WebCore::EAffinity, bool stillSelecting);
95 
96         virtual bool shouldApplyStyle(WebCore::CSSStyleDeclaration*, WebCore::Range*);
97 
98         virtual bool shouldMoveRangeAfterDelete(WebCore::Range*, WebCore::Range*);
99 
100         virtual void didBeginEditing();
101         virtual void respondToChangedContents();
102         virtual void respondToChangedSelection();
103         virtual void didEndEditing();
104         virtual void didWriteSelectionToPasteboard();
105         virtual void didSetSelectionTypesForPasteboard();
106 
107         virtual void registerCommandForUndo(WTF::PassRefPtr<WebCore::EditCommand>);
108         virtual void registerCommandForRedo(WTF::PassRefPtr<WebCore::EditCommand>);
109         virtual void clearUndoRedoOperations();
110 
111         virtual bool canCopyCut(bool defaultValue) const;
112         virtual bool canPaste(bool defaultValue) const;
113         virtual bool canUndo() const;
114         virtual bool canRedo() const;
115 
116         virtual void undo();
117         virtual void redo();
118 
119         virtual void handleKeyboardEvent(WebCore::KeyboardEvent*);
120         virtual void handleInputMethodKeydown(WebCore::KeyboardEvent*);
121         virtual void handleInputMethodMousePress();
122 
123         virtual void textFieldDidBeginEditing(WebCore::Element*);
124         virtual void textFieldDidEndEditing(WebCore::Element*);
125         virtual void textDidChangeInTextField(WebCore::Element*);
126         virtual bool doTextFieldCommandFromEvent(WebCore::Element*, WebCore::KeyboardEvent*);
127         virtual void textWillBeDeletedInTextField(WebCore::Element*);
128         virtual void textDidChangeInTextArea(WebCore::Element*);
129 
textChecker()130         virtual WebCore::TextCheckerClient* textChecker() { return &m_textCheckerClient; }
131 
132         virtual void updateSpellingUIWithGrammarString(const WTF::String&, const WebCore::GrammarDetail&);
133         virtual void updateSpellingUIWithMisspelledWord(const WTF::String&);
134         virtual void showSpellingUI(bool show);
135         virtual bool spellingUIIsShowing();
136         virtual void willSetInputMethodState();
137         virtual void setInputMethodState(bool enabled);
138 
139     private:
140 #if ENABLE(SPELLCHECK)
141         TextCheckerClientEnchant m_textCheckerClient;
142 #else
143         WebCore::EmptyTextCheckerClient m_textCheckerClient;
144 #endif
145         WebKitWebView* m_webView;
146         bool m_preventNextCompositionCommit;
147         bool m_treatContextCommitAsKeyEvent;
148         GOwnPtr<gchar> m_pendingComposition;
149         Vector<const char*> m_pendingEditorCommands;
150         GRefPtr<GtkWidget> m_nativeWidget;
151     };
152 }
153 
154 #endif
155 
156 // vim: ts=4 sw=4 et
157