WebCore/DeleteButtonController.h

   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
  31 namespace WebCore {
  32
  33 class DeleteButton;
  34 class Frame;
  35 class HTMLElement;
  36 class RenderObject;
  37 class Selection;
  38
  39 class DeleteButtonController {
  40 public:
  41     DeleteButtonController(Frame*);
  42
  43     static const char* const containerElementIdentifier;
  44
  45     HTMLElement* target() const { return m_target.get(); }
  46     HTMLElement* containerElement() const { return m_containerElement.get(); }
  47
  48     void respondToChangedSelection(const Selection& oldSelection);
  49
  50     void show(HTMLElement*);
  51     void hide();
  52
  53     bool enabled() const { return (m_disableStack == 0); }
  54     void enable();
  55     void disable();
  56
  57     void deleteTarget();
  58
  59 private:
  60     static const char* const buttonElementIdentifier;
  61     static const char* const outlineElementIdentifier;
  62
  63     void createDeletionUI();
  64
  65     Frame* m_frame;
  66     RefPtr<HTMLElement> m_target;
  67     RefPtr<HTMLElement> m_containerElement;
  68     RefPtr<HTMLElement> m_outlineElement;
  69     RefPtr<DeleteButton> m_buttonElement;
  70     bool m_wasStaticPositioned;
  71     bool m_wasAutoZIndex;
  72     unsigned m_disableStack;
  73 };
  74
  75 } // namespace WebCore
  76
  77 #endif