1 /* 2 * Copyright (C) 2011 Google 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 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef ScrollbarGroup_h 27 #define ScrollbarGroup_h 28 29 #include "platform/scroll/ScrollableArea.h" 30 31 #include "wtf/RefPtr.h" 32 33 namespace WebCore { 34 class FrameView; 35 } 36 37 namespace blink { 38 39 class WebPluginScrollbarImpl; 40 41 class ScrollbarGroup : public WebCore::ScrollableArea { 42 public: 43 ScrollbarGroup(WebCore::FrameView*, const WebCore::IntRect& frameRect); 44 ~ScrollbarGroup(); 45 46 void scrollbarCreated(WebPluginScrollbarImpl*); 47 void scrollbarDestroyed(WebPluginScrollbarImpl*); 48 void setLastMousePosition(const WebCore::IntPoint&); 49 void setFrameRect(const WebCore::IntRect&); 50 51 // WebCore::ScrollableArea methods 52 virtual int scrollSize(WebCore::ScrollbarOrientation) const OVERRIDE; 53 virtual void setScrollOffset(const WebCore::IntPoint&) OVERRIDE; 54 virtual void invalidateScrollbarRect(WebCore::Scrollbar*, const WebCore::IntRect&) OVERRIDE; 55 virtual void invalidateScrollCornerRect(const WebCore::IntRect&) OVERRIDE; 56 virtual bool isActive() const OVERRIDE; 57 virtual ScrollableArea* enclosingScrollableArea() const OVERRIDE; scrollCornerRect()58 virtual WebCore::IntRect scrollCornerRect() const OVERRIDE { return WebCore::IntRect(); } 59 virtual bool isScrollCornerVisible() const OVERRIDE; 60 virtual void getTickmarks(Vector<WebCore::IntRect>&) const OVERRIDE; 61 virtual WebCore::IntPoint convertFromContainingViewToScrollbar(const WebCore::Scrollbar*, const WebCore::IntPoint& parentPoint) const OVERRIDE; 62 virtual WebCore::Scrollbar* horizontalScrollbar() const OVERRIDE; 63 virtual WebCore::Scrollbar* verticalScrollbar() const OVERRIDE; 64 virtual WebCore::IntPoint scrollPosition() const OVERRIDE; 65 virtual WebCore::IntPoint minimumScrollPosition() const OVERRIDE; 66 virtual WebCore::IntPoint maximumScrollPosition() const OVERRIDE; 67 virtual int visibleHeight() const OVERRIDE; 68 virtual int visibleWidth() const OVERRIDE; 69 virtual WebCore::IntSize contentsSize() const OVERRIDE; 70 virtual WebCore::IntSize overhangAmount() const OVERRIDE; 71 virtual WebCore::IntPoint lastKnownMousePosition() const OVERRIDE; 72 virtual bool shouldSuspendScrollAnimations() const OVERRIDE; 73 virtual void scrollbarStyleChanged(int newStyle, bool forceUpdate) OVERRIDE; 74 virtual bool scrollbarsCanBeActive() const OVERRIDE; 75 virtual WebCore::IntRect scrollableAreaBoundingBox() const OVERRIDE; 76 virtual bool userInputScrollable(WebCore::ScrollbarOrientation) const OVERRIDE; 77 virtual bool shouldPlaceVerticalScrollbarOnLeft() const OVERRIDE; 78 virtual int pageStep(WebCore::ScrollbarOrientation) const OVERRIDE; 79 80 private: 81 WebCore::FrameView* m_frameView; 82 WebCore::IntPoint m_lastMousePosition; 83 WebCore::IntRect m_frameRect; 84 WebPluginScrollbarImpl* m_horizontalScrollbar; 85 WebPluginScrollbarImpl* m_verticalScrollbar; 86 }; 87 88 } // namespace blink 89 90 #endif 91