1 /* 2 * This file is part of the select element renderer in WebCore. 3 * 4 * Copyright (C) 2006, 2007, 2009 Apple Inc. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of 16 * its contributors may be used to endorse or promote products derived 17 * from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 20 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 22 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 26 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef RenderListBox_h 32 #define RenderListBox_h 33 34 #include "core/rendering/RenderBlockFlow.h" 35 36 namespace blink { 37 38 class HTMLSelectElement; 39 40 class RenderListBox FINAL : public RenderBlockFlow { 41 public: 42 explicit RenderListBox(Element*); 43 virtual ~RenderListBox(); 44 45 int size() const; 46 47 void paintInvalidationOfScrollbarIfNeeded(); 48 49 // Unlike scrollRectToVisible this will not scroll parent boxes. 50 void scrollToRect(const LayoutRect&); 51 private: 52 HTMLSelectElement* selectElement() const; 53 renderName()54 virtual const char* renderName() const OVERRIDE { return "RenderListBox"; } 55 isListBox()56 virtual bool isListBox() const OVERRIDE { return true; } 57 58 virtual void computeLogicalHeight(LayoutUnit logicalHeight, LayoutUnit logicalTop, LogicalExtentComputedValues&) const OVERRIDE; 59 virtual void computeIntrinsicLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth) const OVERRIDE; 60 61 virtual void stopAutoscroll() OVERRIDE; 62 63 void setHasVerticalScrollbar(bool hasScrollbar); 64 PassRefPtr<Scrollbar> createScrollbar(); 65 void destroyScrollbar(); 66 67 LayoutUnit defaultItemHeight() const; 68 LayoutUnit itemHeight() const; 69 }; 70 71 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderListBox, isListBox()); 72 73 } // namepace blink 74 75 #endif // RenderListBox_h 76