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