2 * This file is part of the select element renderer in WebCore.
4 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
5 * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
17 * You should have received a copy of the GNU Library General Public License
18 * along with this library; see the file COPYING.LIB. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 * Boston, MA 02110-1301, USA.
24 #ifndef RenderMenuList_h
25 #define RenderMenuList_h
27 #include "LayoutTypes.h"
28 #include "PopupMenu.h"
29 #include "PopupMenuClient.h"
30 #include "RenderDeprecatedFlexibleBox.h"
33 #define POPUP_MENU_PULLS_DOWN 0
35 #define POPUP_MENU_PULLS_DOWN 1
42 class RenderMenuList : public RenderDeprecatedFlexibleBox, private PopupMenuClient {
45 RenderMenuList(Element*);
46 virtual ~RenderMenuList();
49 bool popupIsVisible() const { return m_popupIsVisible; }
53 void setOptionsChanged(bool changed) { m_optionsChanged = changed; }
55 void didSetSelectedIndex(int listIndex);
60 virtual bool isMenuList() const { return true; }
62 virtual void addChild(RenderObject* newChild, RenderObject* beforeChild = 0);
63 virtual void removeChild(RenderObject*);
64 virtual bool createsAnonymousWrapper() const { return true; }
66 virtual void updateFromElement();
68 virtual LayoutRect controlClipRect(const LayoutPoint&) const;
69 virtual bool hasControlClip() const { return true; }
70 virtual bool canHaveGeneratedChildren() const OVERRIDE { return false; }
72 virtual const char* renderName() const { return "RenderMenuList"; }
74 virtual void computePreferredLogicalWidths();
76 virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);
78 virtual bool requiresForcedStyleRecalcPropagation() const { return true; }
80 // PopupMenuClient methods
81 virtual void valueChanged(unsigned listIndex, bool fireOnChange = true) OVERRIDE;
82 virtual void selectionChanged(unsigned, bool) OVERRIDE { }
83 virtual void selectionCleared() OVERRIDE { }
84 virtual String itemText(unsigned listIndex) const OVERRIDE;
85 virtual String itemLabel(unsigned listIndex) const OVERRIDE;
86 virtual String itemIcon(unsigned listIndex) const OVERRIDE;
87 virtual String itemToolTip(unsigned listIndex) const OVERRIDE;
88 virtual String itemAccessibilityText(unsigned listIndex) const OVERRIDE;
89 virtual bool itemIsEnabled(unsigned listIndex) const OVERRIDE;
90 virtual PopupMenuStyle itemStyle(unsigned listIndex) const OVERRIDE;
91 virtual PopupMenuStyle menuStyle() const OVERRIDE;
92 virtual int clientInsetLeft() const OVERRIDE;
93 virtual int clientInsetRight() const OVERRIDE;
94 virtual LayoutUnit clientPaddingLeft() const OVERRIDE;
95 virtual LayoutUnit clientPaddingRight() const OVERRIDE;
96 virtual int listSize() const OVERRIDE;
97 virtual int selectedIndex() const OVERRIDE;
98 virtual void popupDidHide() OVERRIDE;
99 virtual bool itemIsSeparator(unsigned listIndex) const OVERRIDE;
100 virtual bool itemIsLabel(unsigned listIndex) const OVERRIDE;
101 virtual bool itemIsSelected(unsigned listIndex) const OVERRIDE;
102 virtual bool shouldPopOver() const OVERRIDE { return !POPUP_MENU_PULLS_DOWN; }
103 virtual bool valueShouldChangeOnHotTrack() const OVERRIDE { return true; }
104 virtual void setTextFromItem(unsigned listIndex) OVERRIDE;
105 virtual void listBoxSelectItem(int listIndex, bool allowMultiplySelections, bool shift, bool fireOnChangeNow = true) OVERRIDE;
106 virtual bool multiple() const OVERRIDE;
107 virtual FontSelector* fontSelector() const OVERRIDE;
108 virtual HostWindow* hostWindow() const OVERRIDE;
109 virtual PassRefPtr<Scrollbar> createScrollbar(ScrollableArea*, ScrollbarOrientation, ScrollbarControlSize) OVERRIDE;
111 virtual bool hasLineIfEmpty() const { return true; }
113 Color itemBackgroundColor(unsigned listIndex) const;
115 void createInnerBlock();
116 void adjustInnerStyle();
117 void setText(const String&);
118 void setTextFromOption(int optionIndex);
119 void updateOptionsWidth();
121 void didUpdateActiveOption(int optionIndex);
123 RenderText* m_buttonText;
124 RenderBlock* m_innerBlock;
126 bool m_optionsChanged;
129 int m_lastActiveIndex;
131 RefPtr<RenderStyle> m_optionStyle;
133 RefPtr<PopupMenu> m_popup;
134 bool m_popupIsVisible;
137 inline RenderMenuList* toRenderMenuList(RenderObject* object)
139 ASSERT(!object || object->isMenuList());
140 return static_cast<RenderMenuList*>(object);
143 // This will catch anyone doing an unnecessary cast.
144 void toRenderMenuList(const RenderMenuList*);