text: /*
   * This file is part of the select element renderer in WebCore.
   *
   * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
   * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Library General Public
   * License as published by the Free Software Foundation; either
   * version 2 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Library General Public License for more details.
   *
   * You should have received a copy of the GNU Library General Public License
   * along with this library; see the file COPYING.LIB.  If not, write to
   * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   * Boston, MA 02110-1301, USA.
   *
   */
  
  #ifndef RenderMenuList_h
  #define RenderMenuList_h
  
  #include "core/rendering/RenderFlexibleBox.h"
  #include "platform/PopupMenu.h"
  #include "platform/PopupMenuClient.h"
  #include "platform/geometry/LayoutRect.h"
  
  namespace WebCore {
  
  class HTMLSelectElement;
  class RenderText;
  
  class RenderMenuList FINAL : public RenderFlexibleBox, private PopupMenuClient {
  
  public:
      RenderMenuList(Element*);
      virtual ~RenderMenuList();
  
  public:
      bool popupIsVisible() const { return m_popupIsVisible; }
      void showPopup();
      void hidePopup();
  
      void setOptionsChanged(bool changed) { m_optionsChanged = changed; }
  
      void didSetSelectedIndex(int listIndex);
  
      String text() const;
  
  private:
      HTMLSelectElement* selectElement() const;
  
      virtual bool isMenuList() const OVERRIDE { return true; }
      virtual bool isChildAllowed(RenderObject*, RenderStyle*) const OVERRIDE;
  
      virtual void addChild(RenderObject* newChild, RenderObject* beforeChild = 0) OVERRIDE;
      virtual void removeChild(RenderObject*) OVERRIDE;
      virtual bool createsAnonymousWrapper() const OVERRIDE { return true; }
  
      virtual void updateFromElement() OVERRIDE;
  
      virtual LayoutRect controlClipRect(const LayoutPoint&) const OVERRIDE;
      virtual bool hasControlClip() const OVERRIDE { return true; }
      virtual bool canHaveGeneratedChildren() const OVERRIDE { return false; }
  
      virtual const char* renderName() const OVERRIDE { return "RenderMenuList"; }
  
      virtual void computeIntrinsicLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth) const OVERRIDE;
      virtual void computePreferredLogicalWidths() OVERRIDE;
  
      virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) OVERRIDE;
  
      // PopupMenuClient methods
      virtual void valueChanged(unsigned listIndex, bool fireOnChange = true) OVERRIDE;
      virtual void selectionChanged(unsigned, bool) OVERRIDE { }
      virtual void selectionCleared() OVERRIDE { }
      virtual String itemText(unsigned listIndex) const OVERRIDE;
      virtual String itemToolTip(unsigned listIndex) const OVERRIDE;
      virtual String itemAccessibilityText(unsigned listIndex) const OVERRIDE;
      virtual bool itemIsEnabled(unsigned listIndex) const OVERRIDE;
      virtual PopupMenuStyle itemStyle(unsigned listIndex) const OVERRIDE;
      virtual PopupMenuStyle menuStyle() const OVERRIDE;
      virtual LayoutUnit clientPaddingLeft() const OVERRIDE;
      virtual LayoutUnit clientPaddingRight() const OVERRIDE;
      virtual int listSize() const OVERRIDE;
      virtual int selectedIndex() const OVERRIDE;
      virtual void popupDidHide() OVERRIDE;
      virtual bool itemIsSeparator(unsigned listIndex) const OVERRIDE;
      virtual bool itemIsLabel(unsigned listIndex) const OVERRIDE;
      virtual bool itemIsSelected(unsigned listIndex) const OVERRIDE;
      virtual void setTextFromItem(unsigned listIndex) OVERRIDE;
      virtual void listBoxSelectItem(int listIndex, bool allowMultiplySelections, bool shift, bool fireOnChangeNow = true) OVERRIDE;
      virtual bool multiple() const OVERRIDE;
  
      virtual bool hasLineIfEmpty() const OVERRIDE { return true; }
  
      // Flexbox defines baselines differently than regular blocks.
      // For backwards compatibility, menulists need to do the regular block behavior.
      virtual int baselinePosition(FontBaseline baseline, bool firstLine, LineDirectionMode direction, LinePositionMode position) const OVERRIDE
      {
          return RenderBlock::baselinePosition(baseline, firstLine, direction, position);
      }
      virtual int firstLineBoxBaseline() const OVERRIDE { return RenderBlock::firstLineBoxBaseline(); }
      virtual int inlineBlockBaseline(LineDirectionMode direction) const OVERRIDE { return RenderBlock::inlineBlockBaseline(direction); }
  
      void getItemBackgroundColor(unsigned listIndex, Color&, bool& itemHasCustomBackgroundColor) const;
  
      void createInnerBlock();
      void adjustInnerStyle();
      void setText(const String&);
      void setTextFromOption(int optionIndex);
      void updateOptionsWidth();
  
      void didUpdateActiveOption(int optionIndex);
  
      RenderText* m_buttonText;
      RenderBlock* m_innerBlock;
  
      bool m_optionsChanged;
      int m_optionsWidth;
  
      int m_lastActiveIndex;
  
      RefPtr<RenderStyle> m_optionStyle;
  
      RefPtr<PopupMenu> m_popup;
      bool m_popupIsVisible;
  };
  
  DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderMenuList, isMenuList());
  
  }
  
  #endif
  