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      1 /*
      2  * Copyright (C) 2008 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 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 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 HostWindow_h
     27 #define HostWindow_h
     28 
     29 #include "wtf/FastAllocBase.h"
     30 #include "wtf/Noncopyable.h"
     31 
     32 namespace WebKit {
     33 struct WebScreenInfo;
     34 }
     35 
     36 namespace WebCore {
     37 class Cursor;
     38 class IntPoint;
     39 class IntRect;
     40 class IntSize;
     41 
     42 class HostWindow {
     43     WTF_MAKE_NONCOPYABLE(HostWindow); WTF_MAKE_FAST_ALLOCATED;
     44 public:
     45     HostWindow() { }
     46     virtual ~HostWindow() { }
     47 
     48     // Requests the host invalidate the contents and the root view.
     49     virtual void invalidateContentsAndRootView(const IntRect& updateRect) = 0;
     50 
     51     // Requests the host scroll backingstore by the specified delta, rect to scroll, and clip rect.
     52     virtual void scroll(const IntSize& scrollDelta, const IntRect& rectToScroll, const IntRect& clipRect) = 0;
     53 
     54     // Requests the host invalidate the contents, not the root view. This is the slow path for scrolling.
     55     virtual void invalidateContentsForSlowScroll(const IntRect& updateRect) = 0;
     56 
     57     // Methods for doing coordinate conversions to and from screen coordinates.
     58     virtual IntPoint screenToRootView(const IntPoint&) const = 0;
     59     virtual IntRect rootViewToScreen(const IntRect&) const = 0;
     60 
     61     virtual WebKit::WebScreenInfo screenInfo() const = 0;
     62 
     63     // Request that the cursor change.
     64     virtual void setCursor(const Cursor&) = 0;
     65 
     66     virtual void scheduleAnimation() = 0;
     67 };
     68 
     69 } // namespace WebCore
     70 
     71 #endif // HostWindow_h
     72