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 EditorClientImpl_h 32 #define EditorClientImpl_h 33 34 #include "core/page/EditorClient.h" 35 #include "core/platform/Timer.h" 36 #include "core/platform/text/TextCheckerClient.h" 37 #include "wtf/Deque.h" 38 #include "wtf/HashSet.h" 39 40 namespace WebCore { 41 class Frame; 42 class HTMLInputElement; 43 } 44 45 namespace WebKit { 46 class WebViewImpl; 47 class WebTextCheckingCompletionImpl; 48 49 class EditorClientImpl : public WebCore::EditorClient, public WebCore::TextCheckerClient { 50 public: 51 EditorClientImpl(WebViewImpl* webView); 52 53 virtual ~EditorClientImpl(); 54 55 virtual bool smartInsertDeleteEnabled() OVERRIDE; 56 virtual bool isSelectTrailingWhitespaceEnabled() OVERRIDE; 57 virtual bool isContinuousSpellCheckingEnabled() OVERRIDE; 58 virtual void toggleContinuousSpellChecking() OVERRIDE; 59 virtual bool isGrammarCheckingEnabled() OVERRIDE; 60 virtual bool shouldBeginEditing(WebCore::Range*) OVERRIDE; 61 virtual bool shouldEndEditing(WebCore::Range*) OVERRIDE; 62 virtual bool shouldInsertNode(WebCore::Node*, WebCore::Range*, WebCore::EditorInsertAction) OVERRIDE; 63 virtual bool shouldInsertText(const WTF::String&, WebCore::Range*, WebCore::EditorInsertAction) OVERRIDE; 64 virtual bool shouldDeleteRange(WebCore::Range*) OVERRIDE; 65 virtual bool shouldChangeSelectedRange(WebCore::Range* fromRange, WebCore::Range* toRange, 66 WebCore::EAffinity, bool stillSelecting) OVERRIDE; 67 virtual bool shouldApplyStyle(WebCore::StylePropertySet*, WebCore::Range*) OVERRIDE; 68 virtual void didBeginEditing() OVERRIDE; 69 virtual void respondToChangedContents() OVERRIDE; 70 virtual void respondToChangedSelection(WebCore::Frame*) OVERRIDE; 71 virtual void didEndEditing() OVERRIDE; 72 virtual void didCancelCompositionOnSelectionChange() OVERRIDE; 73 virtual void registerUndoStep(PassRefPtr<WebCore::UndoStep>) OVERRIDE; 74 virtual void registerRedoStep(PassRefPtr<WebCore::UndoStep>) OVERRIDE; 75 virtual void clearUndoRedoOperations() OVERRIDE; 76 virtual bool canCopyCut(WebCore::Frame*, bool defaultValue) const OVERRIDE; 77 virtual bool canPaste(WebCore::Frame*, bool defaultValue) const OVERRIDE; 78 virtual bool canUndo() const OVERRIDE; 79 virtual bool canRedo() const OVERRIDE; 80 virtual void undo() OVERRIDE; 81 virtual void redo() OVERRIDE; 82 virtual void handleKeyboardEvent(WebCore::KeyboardEvent*) OVERRIDE; 83 virtual void textFieldDidEndEditing(WebCore::Element*) OVERRIDE; 84 virtual void textDidChangeInTextField(WebCore::Element*) OVERRIDE; 85 virtual bool doTextFieldCommandFromEvent(WebCore::Element*, WebCore::KeyboardEvent*) OVERRIDE; 86 virtual bool shouldEraseMarkersAfterChangeSelection(WebCore::TextCheckingType) const OVERRIDE; 87 virtual void checkSpellingOfString(const String&, int* misspellingLocation, int* misspellingLength) OVERRIDE; 88 virtual void checkGrammarOfString(const String&, WTF::Vector<WebCore::GrammarDetail>&, 89 int* badGrammarLocation, int* badGrammarLength) OVERRIDE; 90 virtual WTF::String getAutoCorrectSuggestionForMisspelledWord(const WTF::String&) OVERRIDE; 91 virtual void updateSpellingUIWithMisspelledWord(const WTF::String&) OVERRIDE; 92 virtual void showSpellingUI(bool show) OVERRIDE; 93 virtual bool spellingUIIsShowing() OVERRIDE; 94 virtual void willSetInputMethodState() OVERRIDE; 95 virtual void requestCheckingOfString(WTF::PassRefPtr<WebCore::TextCheckingRequest>) OVERRIDE; 96 virtual bool supportsGlobalSelection() OVERRIDE; 97 98 virtual WebCore::TextCheckerClient* textChecker() { return this; } 99 100 const char* interpretKeyEvent(const WebCore::KeyboardEvent*); 101 102 private: 103 bool handleEditingKeyboardEvent(WebCore::KeyboardEvent*); 104 void modifySelection(WebCore::Frame*, WebCore::KeyboardEvent*); 105 106 // Returns whether or not the focused control needs spell-checking. 107 // Currently, this function just retrieves the focused node and determines 108 // whether or not it is a <textarea> element or an element whose 109 // contenteditable attribute is true. 110 // FIXME: Bug 740540: This code just implements the default behavior 111 // proposed in this issue. We should also retrieve "spellcheck" attributes 112 // for text fields and create a flag to over-write the default behavior. 113 bool shouldSpellcheckByDefault(); 114 115 WebViewImpl* m_webView; 116 bool m_inRedo; 117 118 typedef Deque<RefPtr<WebCore::UndoStep> > UndoManagerStack; 119 UndoManagerStack m_undoStack; 120 UndoManagerStack m_redoStack; 121 122 // This flag is set to false if spell check for this editor is manually 123 // turned off. The default setting is SpellCheckAutomatic. 124 enum { 125 SpellCheckAutomatic, 126 SpellCheckForcedOn, 127 SpellCheckForcedOff 128 }; 129 int m_spellCheckThisFieldStatus; 130 }; 131 132 } // namespace WebKit 133 134 #endif 135