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      1 /*
      2  * Copyright 2007, The Android Open Source Project
      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  *  * Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  *  * 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 THE COPYRIGHT HOLDERS ``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 THE COPYRIGHT OWNER 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 android_graphics_DEFINED
     27 #define android_graphics_DEFINED
     28 
     29 #include "DrawExtra.h"
     30 #include "IntRect.h"
     31 #include "SkTypes.h"
     32 #include "wtf/Vector.h"
     33 
     34 namespace WebCore {
     35     class GraphicsContext;
     36 }
     37 
     38 SkCanvas* android_gc2canvas(GraphicsContext* gc);
     39 
     40 namespace android {
     41 
     42 class CachedFrame;
     43 class CachedNode;
     44 class CachedRoot;
     45 class WebViewCore;
     46 
     47 // Data and methods for cursor rings
     48 
     49 // used to inflate node cache entry
     50 #define CURSOR_RING_HIT_TEST_RADIUS 5
     51 
     52 // used to inval rectangle enclosing pressed state of ring
     53 #define CURSOR_RING_OUTER_DIAMETER SkFixedToScalar(SkIntToFixed(13)>>2) // 13/4 == 3.25
     54 
     55 class CursorRing : public DrawExtra {
     56 public:
     57     enum Flavor {
     58         NORMAL_FLAVOR,
     59         FAKE_FLAVOR,
     60         NORMAL_ANIMATING,
     61         FAKE_ANIMATING,
     62         ANIMATING_COUNT = 2
     63     };
     64 
     65     CursorRing(WebViewCore* core) : m_viewImpl(core) {}
     66     virtual ~CursorRing() {}
     67     virtual void draw(SkCanvas* , LayerAndroid* );
     68     bool setup();
     69 private:
     70     friend class WebView;
     71     WebViewCore* m_viewImpl; // copy for convenience
     72     WTF::Vector<IntRect> m_rings;
     73     IntRect m_bounds;
     74     const CachedRoot* m_root;
     75     const CachedFrame* m_frame;
     76     const CachedNode* m_node;
     77     Flavor m_flavor;
     78     bool m_followedLink;
     79     bool m_isButton;
     80 };
     81 
     82 }
     83 
     84 #endif
     85