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1 /*
2  * Copyright (C) 2009 Google 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 are
6  * met:
7  *
8  *     * Redistributions of source code must retain the above copyright
9  * notice, this list of conditions and the following disclaimer.
10  *     * Redistributions in binary form must reproduce the above
11  * copyright notice, this list of conditions and the following disclaimer
12  * in the documentation and/or other materials provided with the
13  * distribution.
14  *     * Neither the name of Google Inc. nor the names of its
15  * contributors may be used to endorse or promote products derived from
16  * this software without specific prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26  * THEORY 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 SpellCheckerClientImpl_h
32 #define SpellCheckerClientImpl_h
33 
34 #include "core/page/SpellCheckerClient.h"
35 #include "platform/text/TextCheckerClient.h"
36 
37 namespace WebCore {
38 class LocalFrame;
39 class HTMLInputElement;
40 }
41 
42 namespace blink {
43 class WebViewImpl;
44 
45 class SpellCheckerClientImpl FINAL : public WebCore::SpellCheckerClient, public WebCore::TextCheckerClient {
46 public:
47     SpellCheckerClientImpl(WebViewImpl*);
48 
49     virtual ~SpellCheckerClientImpl();
50 
51     virtual bool isContinuousSpellCheckingEnabled() OVERRIDE;
52     virtual void toggleContinuousSpellChecking() OVERRIDE;
53     virtual bool isGrammarCheckingEnabled() OVERRIDE;
54     virtual bool shouldEraseMarkersAfterChangeSelection(WebCore::TextCheckingType) const OVERRIDE;
55     virtual void checkSpellingOfString(const String&, int* misspellingLocation, int* misspellingLength) OVERRIDE;
56     virtual void checkGrammarOfString(const String&, WTF::Vector<WebCore::GrammarDetail>&,
57         int* badGrammarLocation, int* badGrammarLength) OVERRIDE;
58     virtual WTF::String getAutoCorrectSuggestionForMisspelledWord(const WTF::String&) OVERRIDE;
59     virtual void updateSpellingUIWithMisspelledWord(const WTF::String&) OVERRIDE;
60     virtual void showSpellingUI(bool show) OVERRIDE;
61     virtual bool spellingUIIsShowing() OVERRIDE;
62     virtual void requestCheckingOfString(WTF::PassRefPtr<WebCore::TextCheckingRequest>) OVERRIDE;
63 
textChecker()64     virtual WebCore::TextCheckerClient& textChecker() OVERRIDE { return *this; }
65 
66 private:
67     // Returns whether or not the focused control needs spell-checking.
68     // Currently, this function just retrieves the focused node and determines
69     // whether or not it is a <textarea> element or an element whose
70     // contenteditable attribute is true.
71     // FIXME: Bug 740540: This code just implements the default behavior
72     // proposed in this issue. We should also retrieve "spellcheck" attributes
73     // for text fields and create a flag to over-write the default behavior.
74     bool shouldSpellcheckByDefault();
75 
76     WebViewImpl* m_webView;
77 
78     // This flag is set to false if spell check for this editor is manually
79     // turned off. The default setting is SpellCheckAutomatic.
80     enum {
81         SpellCheckAutomatic,
82         SpellCheckForcedOn,
83         SpellCheckForcedOff
84     } m_spellCheckThisFieldStatus;
85 };
86 
87 } // namespace blink
88 
89 #endif
90