1/*
2 * Copyright (C) 2006, 2007 Apple 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
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef DeleteButtonController_h
27#define DeleteButtonController_h
28
29#include "DeleteButton.h"
30
31namespace WebCore {
32
33class DeleteButton;
34class Frame;
35class HTMLElement;
36class RenderObject;
37class VisibleSelection;
38
39class DeleteButtonController {
40    WTF_MAKE_NONCOPYABLE(DeleteButtonController); WTF_MAKE_FAST_ALLOCATED;
41public:
42    DeleteButtonController(Frame*);
43
44    static const char* const containerElementIdentifier;
45
46    HTMLElement* target() const { return m_target.get(); }
47    HTMLElement* containerElement() const { return m_containerElement.get(); }
48
49    void respondToChangedSelection(const VisibleSelection& oldSelection);
50
51    void show(HTMLElement*);
52    void hide();
53
54    bool enabled() const { return (m_disableStack == 0); }
55    void enable();
56    void disable();
57
58    void deleteTarget();
59
60private:
61    static const char* const buttonElementIdentifier;
62    static const char* const outlineElementIdentifier;
63
64    void createDeletionUI();
65
66    Frame* m_frame;
67    RefPtr<HTMLElement> m_target;
68    RefPtr<HTMLElement> m_containerElement;
69    RefPtr<HTMLElement> m_outlineElement;
70    RefPtr<DeleteButton> m_buttonElement;
71    bool m_wasStaticPositioned;
72    bool m_wasAutoZIndex;
73    unsigned m_disableStack;
74};
75
76} // namespace WebCore
77
78#endif
79