--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/editing/Editor.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,337 @@
+/*
+ * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#ifndef Editor_h
+#define Editor_h
+
+#include "ClipboardAccessPolicy.h"
+#include "Color.h"
+#include "EditAction.h"
+#include "EditingBehavior.h"
+#include "EditorDeleteAction.h"
+#include "EditorInsertAction.h"
+#include "SelectionController.h"
+
+namespace WebCore {
+
+class CSSStyleDeclaration;
+class Clipboard;
+class DeleteButtonController;
+class EditCommand;
+class EditorClient;
+class EditorInternalCommand;
+class HTMLElement;
+class HitTestResult;
+class KillRing;
+class Pasteboard;
+class SimpleFontData;
+class Text;
+
+struct CompositionUnderline {
+    CompositionUnderline() 
+        : startOffset(0), endOffset(0), thick(false) { }
+    CompositionUnderline(unsigned s, unsigned e, const Color& c, bool t) 
+        : startOffset(s), endOffset(e), color(c), thick(t) { }
+    unsigned startOffset;
+    unsigned endOffset;
+    Color color;
+    bool thick;
+};
+
+enum TriState { FalseTriState, TrueTriState, MixedTriState };
+enum EditorCommandSource { CommandFromMenuOrKeyBinding, CommandFromDOM, CommandFromDOMWithUserInterface };
+enum WritingDirection { NaturalWritingDirection, LeftToRightWritingDirection, RightToLeftWritingDirection };
+
+class Editor {
+public:
+    Editor(Frame*);
+    ~Editor();
+
+    EditorClient* client() const;
+    Frame* frame() const { return m_frame; }
+    DeleteButtonController* deleteButtonController() const { return m_deleteButtonController.get(); }
+    EditCommand* lastEditCommand() { return m_lastEditCommand.get(); }
+
+    void handleKeyboardEvent(KeyboardEvent*);
+    void handleInputMethodKeydown(KeyboardEvent*);
+
+    bool canEdit() const;
+    bool canEditRichly() const;
+
+    bool canDHTMLCut();
+    bool canDHTMLCopy();
+    bool canDHTMLPaste();
+    bool tryDHTMLCopy();
+    bool tryDHTMLCut();
+    bool tryDHTMLPaste();
+
+    bool canCut() const;
+    bool canCopy() const;
+    bool canPaste() const;
+    bool canDelete() const;
+    bool canSmartCopyOrDelete();
+
+    void cut();
+    void copy();
+    void paste();
+    void pasteAsPlainText();
+    void performDelete();
+
+    void copyURL(const KURL&, const String&);
+    void copyImage(const HitTestResult&);
+
+    void indent();
+    void outdent();
+    void transpose();
+
+    bool shouldInsertFragment(PassRefPtr<DocumentFragment>, PassRefPtr<Range>, EditorInsertAction);
+    bool shouldInsertText(const String&, Range*, EditorInsertAction) const;
+    bool shouldShowDeleteInterface(HTMLElement*) const;
+    bool shouldDeleteRange(Range*) const;
+    bool shouldApplyStyle(CSSStyleDeclaration*, Range*);
+    
+    void respondToChangedSelection(const VisibleSelection& oldSelection);
+    void respondToChangedContents(const VisibleSelection& endingSelection);
+
+    TriState selectionHasStyle(CSSStyleDeclaration*) const;
+    const SimpleFontData* fontForSelection(bool&) const;
+    WritingDirection textDirectionForSelection(bool&) const;
+    
+    TriState selectionUnorderedListState() const;
+    TriState selectionOrderedListState() const;
+    PassRefPtr<Node> insertOrderedList();
+    PassRefPtr<Node> insertUnorderedList();
+    bool canIncreaseSelectionListLevel();
+    bool canDecreaseSelectionListLevel();
+    PassRefPtr<Node> increaseSelectionListLevel();
+    PassRefPtr<Node> increaseSelectionListLevelOrdered();
+    PassRefPtr<Node> increaseSelectionListLevelUnordered();
+    void decreaseSelectionListLevel();
+   
+    void removeFormattingAndStyle();
+
+    void clearLastEditCommand();
+
+    bool deleteWithDirection(SelectionController::EDirection, TextGranularity, bool killRing, bool isTypingAction);
+    void deleteSelectionWithSmartDelete(bool smartDelete);
+    bool dispatchCPPEvent(const AtomicString&, ClipboardAccessPolicy);
+    
+    Node* removedAnchor() const { return m_removedAnchor.get(); }
+    void setRemovedAnchor(PassRefPtr<Node> n) { m_removedAnchor = n; }
+
+    void applyStyle(CSSStyleDeclaration*, EditAction = EditActionUnspecified);
+    void applyParagraphStyle(CSSStyleDeclaration*, EditAction = EditActionUnspecified);
+    void applyStyleToSelection(CSSStyleDeclaration*, EditAction);
+    void applyParagraphStyleToSelection(CSSStyleDeclaration*, EditAction);
+
+    void appliedEditing(PassRefPtr<EditCommand>);
+    void unappliedEditing(PassRefPtr<EditCommand>);
+    void reappliedEditing(PassRefPtr<EditCommand>);
+    
+    bool selectionStartHasStyle(CSSStyleDeclaration*) const;
+
+    bool clientIsEditable() const;
+    
+    void setShouldStyleWithCSS(bool flag) { m_shouldStyleWithCSS = flag; }
+    bool shouldStyleWithCSS() const { return m_shouldStyleWithCSS; }
+
+    class Command {
+    public:
+        Command();
+        Command(PassRefPtr<Frame>, const EditorInternalCommand*, EditorCommandSource);
+
+        bool execute(const String& parameter = String(), Event* triggeringEvent = 0) const;
+        bool execute(Event* triggeringEvent) const;
+
+        bool isSupported() const;
+        bool isEnabled(Event* triggeringEvent = 0) const;
+
+        TriState state(Event* triggeringEvent = 0) const;
+        String value(Event* triggeringEvent = 0) const;
+
+        bool isTextInsertion() const;
+
+    private:
+        RefPtr<Frame> m_frame;
+        const EditorInternalCommand* m_command;
+        EditorCommandSource m_source;
+    };
+    Command command(const String& commandName); // Default is CommandFromMenuOrKeyBinding.
+    Command command(const String& commandName, EditorCommandSource);
+
+    bool insertText(const String&, Event* triggeringEvent);
+    bool insertTextWithoutSendingTextEvent(const String&, bool selectInsertedText, Event* triggeringEvent);
+    bool insertLineBreak();
+    bool insertParagraphSeparator();
+    
+    bool isContinuousSpellCheckingEnabled();
+    void toggleContinuousSpellChecking();
+    bool isGrammarCheckingEnabled();
+    void toggleGrammarChecking();
+    void ignoreSpelling();
+    void learnSpelling();
+    int spellCheckerDocumentTag();
+    bool isSelectionUngrammatical();
+    bool isSelectionMisspelled();
+    Vector<String> guessesForMisspelledSelection();
+    Vector<String> guessesForUngrammaticalSelection();
+    Vector<String> guessesForMisspelledOrUngrammaticalSelection(bool& misspelled, bool& ungrammatical);
+    bool spellCheckingEnabledInFocusedNode() const;
+    void markMisspellingsAfterTypingToPosition(const VisiblePosition&);
+    void markMisspellings(const VisibleSelection&, RefPtr<Range>& firstMisspellingRange);
+    void markBadGrammar(const VisibleSelection&);
+    void markMisspellingsAndBadGrammar(const VisibleSelection& spellingSelection, bool markGrammar, const VisibleSelection& grammarSelection);
+#if PLATFORM(MAC) && !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD)
+    void uppercaseWord();
+    void lowercaseWord();
+    void capitalizeWord();
+    void showSubstitutionsPanel();
+    bool substitutionsPanelIsShowing();
+    void toggleSmartInsertDelete();
+    bool isAutomaticQuoteSubstitutionEnabled();
+    void toggleAutomaticQuoteSubstitution();
+    bool isAutomaticLinkDetectionEnabled();
+    void toggleAutomaticLinkDetection();
+    bool isAutomaticDashSubstitutionEnabled();
+    void toggleAutomaticDashSubstitution();
+    bool isAutomaticTextReplacementEnabled();
+    void toggleAutomaticTextReplacement();
+    bool isAutomaticSpellingCorrectionEnabled();
+    void toggleAutomaticSpellingCorrection();
+    void markAllMisspellingsAndBadGrammarInRanges(bool markSpelling, Range* spellingRange, bool markGrammar, Range* grammarRange, bool performTextCheckingReplacements);
+    void changeBackToReplacedString(const String& replacedString);
+#endif
+    void advanceToNextMisspelling(bool startBeforeSelection = false);
+    void showSpellingGuessPanel();
+    bool spellingPanelIsShowing();
+
+    bool shouldBeginEditing(Range*);
+    bool shouldEndEditing(Range*);
+
+    void clearUndoRedoOperations();
+    bool canUndo();
+    void undo();
+    bool canRedo();
+    void redo();
+
+    void didBeginEditing();
+    void didEndEditing();
+    void didWriteSelectionToPasteboard();
+    
+    void showFontPanel();
+    void showStylesPanel();
+    void showColorPanel();
+    void toggleBold();
+    void toggleUnderline();
+    void setBaseWritingDirection(WritingDirection);
+
+    // smartInsertDeleteEnabled and selectTrailingWhitespaceEnabled are 
+    // mutually exclusive, meaning that enabling one will disable the other.
+    bool smartInsertDeleteEnabled();
+    bool isSelectTrailingWhitespaceEnabled();
+    
+    bool hasBidiSelection() const;
+
+    // international text input composition
+    bool hasComposition() const { return m_compositionNode; }
+    void setComposition(const String&, const Vector<CompositionUnderline>&, unsigned selectionStart, unsigned selectionEnd);
+    void confirmComposition();
+    void confirmComposition(const String&); // if no existing composition, replaces selection
+    void confirmCompositionWithoutDisturbingSelection();
+    PassRefPtr<Range> compositionRange() const;
+    bool getCompositionSelection(unsigned& selectionStart, unsigned& selectionEnd) const;
+
+    // getting international text input composition state (for use by InlineTextBox)
+    Text* compositionNode() const { return m_compositionNode.get(); }
+    unsigned compositionStart() const { return m_compositionStart; }
+    unsigned compositionEnd() const { return m_compositionEnd; }
+    bool compositionUsesCustomUnderlines() const { return !m_customCompositionUnderlines.isEmpty(); }
+    const Vector<CompositionUnderline>& customCompositionUnderlines() const { return m_customCompositionUnderlines; }
+
+    bool ignoreCompositionSelectionChange() const { return m_ignoreCompositionSelectionChange; }
+
+    void setStartNewKillRingSequence(bool);
+
+    PassRefPtr<Range> rangeForPoint(const IntPoint& windowPoint);
+
+    void clear();
+
+    VisibleSelection selectionForCommand(Event*);
+
+    KillRing* killRing() const { return m_killRing.get(); }
+
+    EditingBehavior behavior() const;
+
+    PassRefPtr<Range> selectedRange();
+    
+    // We should make these functions private when their callers in Frame are moved over here to Editor
+    bool insideVisibleArea(const IntPoint&) const;
+    bool insideVisibleArea(Range*) const;
+    PassRefPtr<Range> nextVisibleRange(Range*, const String&, bool forward, bool caseFlag, bool wrapFlag);
+    
+    void addToKillRing(Range*, bool prepend);
+private:
+    Frame* m_frame;
+    OwnPtr<DeleteButtonController> m_deleteButtonController;
+    RefPtr<EditCommand> m_lastEditCommand;
+    RefPtr<Node> m_removedAnchor;
+
+    RefPtr<Text> m_compositionNode;
+    unsigned m_compositionStart;
+    unsigned m_compositionEnd;
+    Vector<CompositionUnderline> m_customCompositionUnderlines;
+    bool m_ignoreCompositionSelectionChange;
+    bool m_shouldStartNewKillRingSequence;
+    bool m_shouldStyleWithCSS;
+    OwnPtr<KillRing> m_killRing;
+
+    bool canDeleteRange(Range*) const;
+    bool canSmartReplaceWithPasteboard(Pasteboard*);
+    PassRefPtr<Clipboard> newGeneralClipboard(ClipboardAccessPolicy);
+    void pasteAsPlainTextWithPasteboard(Pasteboard*);
+    void pasteWithPasteboard(Pasteboard*, bool allowPlainText);
+    void replaceSelectionWithFragment(PassRefPtr<DocumentFragment>, bool selectReplacement, bool smartReplace, bool matchStyle);
+    void replaceSelectionWithText(const String&, bool selectReplacement, bool smartReplace);
+    void writeSelectionToPasteboard(Pasteboard*);
+    void revealSelectionAfterEditingOperation();
+
+    void selectComposition();
+    void confirmComposition(const String&, bool preserveSelection);
+    void setIgnoreCompositionSelectionChange(bool ignore);
+
+    PassRefPtr<Range> firstVisibleRange(const String&, bool caseFlag);
+    PassRefPtr<Range> lastVisibleRange(const String&, bool caseFlag);
+    
+    void changeSelectionAfterCommand(const VisibleSelection& newSelection, bool closeTyping, bool clearTypingStyle);
+};
+
+inline void Editor::setStartNewKillRingSequence(bool flag)
+{
+    m_shouldStartNewKillRingSequence = flag;
+}
+
+} // namespace WebCore
+
+#endif // Editor_h