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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 
     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