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 are 6 * met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 11 * 2. Redistributions in binary form must reproduce the above 12 * copyright notice, this list of conditions and the following disclaimer 13 * in the documentation and/or other materials provided with the 14 * distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY GOOGLE INC. AND ITS CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE INC. 20 * OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef PageOverlayList_h 30 #define PageOverlayList_h 31 32 #include "wtf/OwnPtr.h" 33 #include "wtf/PassOwnPtr.h" 34 #include "wtf/Vector.h" 35 36 namespace WebCore { 37 class GraphicsContext; 38 class GraphicsLayer; 39 } 40 41 namespace blink { 42 class PageOverlay; 43 class WebPageOverlay; 44 class WebViewImpl; 45 46 class PageOverlayList { 47 public: 48 static PassOwnPtr<PageOverlayList> create(WebViewImpl*); 49 50 ~PageOverlayList(); 51 empty()52 bool empty() const { return !m_pageOverlays.size(); } 53 54 // Adds/removes a PageOverlay for given client. 55 // Returns true if a PageOverlay is added/removed. 56 bool add(WebPageOverlay*, int /* zOrder */); 57 bool remove(WebPageOverlay*); 58 59 void update(); 60 void paintWebFrame(WebCore::GraphicsContext&); 61 62 size_t findGraphicsLayer(WebCore::GraphicsLayer*); 63 64 private: 65 typedef Vector<OwnPtr<PageOverlay>, 2> PageOverlays; 66 67 explicit PageOverlayList(WebViewImpl*); 68 69 // Returns the index of the client found. Otherwise, returns WTF::kNotFound. 70 size_t find(WebPageOverlay*); 71 72 WebViewImpl* m_viewImpl; 73 PageOverlays m_pageOverlays; 74 }; 75 76 } // namespace blink 77 78 #endif // PageOverlayList_h 79