/*

 * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.

 * Copyright (C) 2007 Trolltech ASA

 *

 * 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 EditorClient_h

#define EditorClient_h

#include "EditorInsertAction.h"

#include "PlatformString.h"

#include "TextAffinity.h"

#include <wtf/Forward.h>

#include <wtf/Vector.h>

#if PLATFORM(MAC)

class NSArray;

class NSData;

class NSString;

class NSURL;

#endif

namespace WebCore {

class CSSStyleDeclaration;

class EditCommand;

class Element;

class Frame;

class HTMLElement;

class KeyboardEvent;

class Node;

class Range;

class Selection;

class String;

class VisiblePosition;

struct GrammarDetail {

    int location;

    int length;

    Vector<String> guesses;

    String userDescription;

};

class EditorClient {

public:

    virtual ~EditorClient() {  }

    virtual void pageDestroyed() = 0;

    virtual bool shouldDeleteRange(Range*) = 0;

    virtual bool shouldShowDeleteInterface(HTMLElement*) = 0;

    virtual bool smartInsertDeleteEnabled() = 0; 

    virtual bool isContinuousSpellCheckingEnabled() = 0;

    virtual void toggleContinuousSpellChecking() = 0;

    virtual bool isGrammarCheckingEnabled() = 0;

    virtual void toggleGrammarChecking() = 0;

    virtual int spellCheckerDocumentTag() = 0;

    virtual bool isEditable() = 0;

    virtual bool shouldBeginEditing(Range*) = 0;

    virtual bool shouldEndEditing(Range*) = 0;

    virtual bool shouldInsertNode(Node*, Range*, EditorInsertAction) = 0;

    virtual bool shouldInsertText(String, Range*, EditorInsertAction) = 0;

    virtual bool shouldChangeSelectedRange(Range* fromRange, Range* toRange, EAffinity, bool stillSelecting) = 0;

    virtual bool shouldApplyStyle(CSSStyleDeclaration*, Range*) = 0;

//  virtual bool shouldChangeTypingStyle(CSSStyleDeclaration* fromStyle, CSSStyleDeclaration* toStyle) = 0;

//  virtual bool doCommandBySelector(SEL selector) = 0;

    virtual bool shouldMoveRangeAfterDelete(Range*, Range*) = 0;

    virtual void didBeginEditing() = 0;

    virtual void respondToChangedContents() = 0;

    virtual void respondToChangedSelection() = 0;

    virtual void didEndEditing() = 0;

    virtual void didWriteSelectionToPasteboard() = 0;

    virtual void didSetSelectionTypesForPasteboard() = 0;

//  virtual void didChangeTypingStyle:(NSNotification *)notification = 0;

//  virtual void didChangeSelection:(NSNotification *)notification = 0;

//  virtual NSUndoManager* undoManager:(WebView *)webView = 0;

    virtual void registerCommandForUndo(PassRefPtr<EditCommand>) = 0;

    virtual void registerCommandForRedo(PassRefPtr<EditCommand>) = 0;

    virtual void clearUndoRedoOperations() = 0;

    virtual bool canUndo() const = 0;

    virtual bool canRedo() const = 0;

    virtual void undo() = 0;

    virtual void redo() = 0;

    virtual void handleKeypress(KeyboardEvent*) = 0;

    virtual void handleInputMethodKeypress(KeyboardEvent*) = 0;

    virtual void textFieldDidBeginEditing(Element*) = 0;

    virtual void textFieldDidEndEditing(Element*) = 0;

    virtual void textDidChangeInTextField(Element*) = 0;

    virtual bool doTextFieldCommandFromEvent(Element*, KeyboardEvent*) = 0;

    virtual void textWillBeDeletedInTextField(Element*) = 0;

    virtual void textDidChangeInTextArea(Element*) = 0;

#if PLATFORM(MAC)

    // FIXME: This should become SelectionController::toWebArchive()

    virtual NSData* dataForArchivedSelection(Frame*) = 0; 

    virtual NSString* userVisibleString(NSURL*) = 0;

#ifdef BUILDING_ON_TIGER

    virtual NSArray* pasteboardTypesForSelection(Frame*) = 0;

#endif

#endif

    virtual void ignoreWordInSpellDocument(const String&) = 0;

    virtual void learnWord(const String&) = 0;

    virtual void checkSpellingOfString(const UChar*, int length, int* misspellingLocation, int* misspellingLength) = 0;

    virtual void checkGrammarOfString(const UChar*, int length, Vector<GrammarDetail>&, int* badGrammarLocation, int* badGrammarLength) = 0;

    virtual void updateSpellingUIWithGrammarString(const String&, const GrammarDetail& detail) = 0;

    virtual void updateSpellingUIWithMisspelledWord(const String&) = 0;

    virtual void showSpellingUI(bool show) = 0;

    virtual bool spellingUIIsShowing() = 0;

    virtual void getGuessesForWord(const String&, Vector<String>& guesses) = 0;

    virtual void setInputMethodState(bool enabled) = 0;

};

}

#endif // EditorClient_h