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1 /*
2  * Copyright (C) 2006, 2007 Apple Inc.  All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25 
26 #ifndef WebEditorClient_H
27 #define WebEditorClient_H
28 
29 #include "WebKit.h"
30 #pragma warning(push, 0)
31 #include <WebCore/EditorClient.h>
32 #include <wtf/OwnPtr.h>
33 #pragma warning(pop)
34 
35 class WebView;
36 class WebNotification;
37 class WebEditorUndoTarget;
38 
39 class WebEditorClient : public WebCore::EditorClient {
40 public:
41     WebEditorClient(WebView*);
42     ~WebEditorClient();
43 
44     virtual void pageDestroyed();
45 
46     virtual bool isContinuousSpellCheckingEnabled();
47     virtual void toggleGrammarChecking();
48     virtual bool isGrammarCheckingEnabled();
49     virtual void toggleContinuousSpellChecking();
50     virtual int spellCheckerDocumentTag();
51 
52     virtual bool isEditable();
53 
54     virtual bool shouldBeginEditing(WebCore::Range*);
55     virtual bool shouldEndEditing(WebCore::Range*);
56     virtual bool shouldInsertText(const WebCore::String&, WebCore::Range*, WebCore::EditorInsertAction);
57 
58     virtual void didBeginEditing();
59     virtual void didEndEditing();
60     virtual void didWriteSelectionToPasteboard();
61     virtual void didSetSelectionTypesForPasteboard();
62 
63     virtual void respondToChangedContents();
64     virtual void respondToChangedSelection();
65 
66     bool shouldShowDeleteInterface(WebCore::HTMLElement*);
67     bool shouldDeleteRange(WebCore::Range*);
68 
69     bool shouldInsertNode(WebCore::Node*, WebCore::Range* replacingRange, WebCore::EditorInsertAction);
70     bool shouldApplyStyle(WebCore::CSSStyleDeclaration*, WebCore::Range*);
71     bool shouldMoveRangeAfterDelete(WebCore::Range*, WebCore::Range*);
72     bool shouldChangeTypingStyle(WebCore::CSSStyleDeclaration* currentStyle, WebCore::CSSStyleDeclaration* toProposedStyle);
73 
74     void webViewDidChangeTypingStyle(WebNotification*);
75     void webViewDidChangeSelection(WebNotification*);
76 
77     bool smartInsertDeleteEnabled();
78     bool isSelectTrailingWhitespaceEnabled();
79 
80     void registerCommandForUndo(PassRefPtr<WebCore::EditCommand>);
81     void registerCommandForRedo(PassRefPtr<WebCore::EditCommand>);
82     void clearUndoRedoOperations();
83 
84     bool canUndo() const;
85     bool canRedo() const;
86 
87     void undo();
88     void redo();
89 
90     virtual bool shouldChangeSelectedRange(WebCore::Range* fromRange, WebCore::Range* toRange, WebCore::EAffinity, bool stillSelecting);
91     virtual void textFieldDidBeginEditing(WebCore::Element*);
92     virtual void textFieldDidEndEditing(WebCore::Element*);
93     virtual void textDidChangeInTextField(WebCore::Element*);
94     virtual bool doTextFieldCommandFromEvent(WebCore::Element*, WebCore::KeyboardEvent*);
95     virtual void textWillBeDeletedInTextField(WebCore::Element* input);
96     virtual void textDidChangeInTextArea(WebCore::Element*);
97 
98     void handleKeyboardEvent(WebCore::KeyboardEvent*);
99     void handleInputMethodKeydown(WebCore::KeyboardEvent*);
100 
101     virtual void ignoreWordInSpellDocument(const WebCore::String&);
102     virtual void learnWord(const WebCore::String&);
103     virtual void checkSpellingOfString(const UChar*, int length, int* misspellingLocation, int* misspellingLength);
104     virtual WebCore::String getAutoCorrectSuggestionForMisspelledWord(const WebCore::String&);
105     virtual void checkGrammarOfString(const UChar*, int length, Vector<WebCore::GrammarDetail>&, int* badGrammarLocation, int* badGrammarLength);
106     virtual void updateSpellingUIWithGrammarString(const WebCore::String&, const WebCore::GrammarDetail& detail);
107     virtual void updateSpellingUIWithMisspelledWord(const WebCore::String&);
108     virtual void showSpellingUI(bool show);
109     virtual bool spellingUIIsShowing();
110     virtual void getGuessesForWord(const WebCore::String&, Vector<WebCore::String>& guesses);
111 
112     virtual void setInputMethodState(bool);
113 
114 private:
115     WebView* m_webView;
116     WebEditorUndoTarget* m_undoTarget;
117 };
118 
119 #endif // WebEditorClient_H
120