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| 1 /* | |
| 2 * Copyright (C) 2006, 2007, 2009, 2010, 2011 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 SKY_ENGINE_CORE_PAGE_AUTOSCROLLCONTROLLER_H_ | |
| 27 #define SKY_ENGINE_CORE_PAGE_AUTOSCROLLCONTROLLER_H_ | |
| 28 | |
| 29 #include "sky/engine/platform/geometry/IntPoint.h" | |
| 30 #include "sky/engine/wtf/PassOwnPtr.h" | |
| 31 | |
| 32 namespace blink { | |
| 33 | |
| 34 class EventHandler; | |
| 35 class LocalFrame; | |
| 36 class FrameView; | |
| 37 class Node; | |
| 38 class Page; | |
| 39 class RenderBox; | |
| 40 class RenderObject; | |
| 41 | |
| 42 enum AutoscrollType { | |
| 43 NoAutoscroll, | |
| 44 AutoscrollForDragAndDrop, | |
| 45 AutoscrollForSelection, | |
| 46 }; | |
| 47 | |
| 48 // AutscrollController handels autoscroll and pan scroll for EventHandler. | |
| 49 class AutoscrollController { | |
| 50 public: | |
| 51 static PassOwnPtr<AutoscrollController> create(Page&); | |
| 52 | |
| 53 void animate(double monotonicFrameBeginTime); | |
| 54 bool autoscrollInProgress() const; | |
| 55 bool autoscrollInProgress(const RenderBox*) const; | |
| 56 void startAutoscrollForSelection(RenderObject*); | |
| 57 void stopAutoscroll(); | |
| 58 void stopAutoscrollIfNeeded(RenderObject*); | |
| 59 void updateAutoscrollRenderer(); | |
| 60 void updateDragAndDrop(Node* targetNode, const IntPoint& eventPosition, doub
le eventTime); | |
| 61 | |
| 62 private: | |
| 63 explicit AutoscrollController(Page&); | |
| 64 | |
| 65 void startAutoscroll(); | |
| 66 | |
| 67 Page& m_page; | |
| 68 RenderBox* m_autoscrollRenderer; | |
| 69 AutoscrollType m_autoscrollType; | |
| 70 IntPoint m_dragAndDropAutoscrollReferencePosition; | |
| 71 double m_dragAndDropAutoscrollStartTime; | |
| 72 }; | |
| 73 | |
| 74 } // namespace blink | |
| 75 | |
| 76 #endif // SKY_ENGINE_CORE_PAGE_AUTOSCROLLCONTROLLER_H_ | |
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Chromium Code Reviews
Issue 878303002:
Remove more scrolling code from Sky (Closed)
Base URL: git@github.com:domokit/mojo.git@master