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| 1 /* | 1 /* |
| 2 * Copyright (C) 2013 Google Inc. All rights reserved. | 2 * Copyright (C) 2013 Google Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
| 6 * met: | 6 * met: |
| 7 * | 7 * |
| 8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
| 10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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| 34 #include "core/CoreExport.h" | 34 #include "core/CoreExport.h" |
| 35 #include "platform/heap/Handle.h" | 35 #include "platform/heap/Handle.h" |
| 36 #include "wtf/Allocator.h" | 36 #include "wtf/Allocator.h" |
| 37 #include "wtf/Noncopyable.h" | 37 #include "wtf/Noncopyable.h" |
| 38 #include "wtf/text/AtomicString.h" | 38 #include "wtf/text/AtomicString.h" |
| 39 #include <memory> | 39 #include <memory> |
| 40 | 40 |
| 41 namespace blink { | 41 namespace blink { |
| 42 | 42 |
| 43 class BrowserControls; | 43 class BrowserControls; |
| 44 class ConsoleMessageStorage; | |
| 45 class OverscrollController; | 44 class OverscrollController; |
| 46 class Page; | 45 class Page; |
| 47 | 46 |
| 48 // FrameHost is the set of global data shared between multiple frames | 47 // FrameHost is the set of global data shared between multiple frames |
| 49 // and is provided by the embedder to each frame when created. | 48 // and is provided by the embedder to each frame when created. |
| 50 // FrameHost currently corresponds to the Page object in core/page | 49 // FrameHost currently corresponds to the Page object in core/page |
| 51 // however the concept of a Page is moving up out of Blink. | 50 // however the concept of a Page is moving up out of Blink. |
| 52 // In an out-of-process iframe world, a single Page may have | 51 // In an out-of-process iframe world, a single Page may have |
| 53 // multiple frames in different process, thus Page becomes a | 52 // multiple frames in different process, thus Page becomes a |
| 54 // browser-level concept and Blink core/ only knows about its LocalFrame (and | 53 // browser-level concept and Blink core/ only knows about its LocalFrame (and |
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| 65 | 64 |
| 66 Page& page(); | 65 Page& page(); |
| 67 const Page& page() const; | 66 const Page& page() const; |
| 68 | 67 |
| 69 BrowserControls& browserControls(); | 68 BrowserControls& browserControls(); |
| 70 const BrowserControls& browserControls() const; | 69 const BrowserControls& browserControls() const; |
| 71 | 70 |
| 72 OverscrollController& overscrollController(); | 71 OverscrollController& overscrollController(); |
| 73 const OverscrollController& overscrollController() const; | 72 const OverscrollController& overscrollController() const; |
| 74 | 73 |
| 75 ConsoleMessageStorage& consoleMessageStorage(); | |
| 76 const ConsoleMessageStorage& consoleMessageStorage() const; | |
| 77 | |
| 78 DECLARE_TRACE(); | 74 DECLARE_TRACE(); |
| 79 | 75 |
| 80 // Don't allow more than a certain number of frames in a page. | 76 // Don't allow more than a certain number of frames in a page. |
| 81 // This seems like a reasonable upper bound, and otherwise mutually | 77 // This seems like a reasonable upper bound, and otherwise mutually |
| 82 // recursive frameset pages can quickly bring the program to its knees | 78 // recursive frameset pages can quickly bring the program to its knees |
| 83 // with exponential growth in the number of frames. | 79 // with exponential growth in the number of frames. |
| 84 static const int maxNumberOfFrames = 1000; | 80 static const int maxNumberOfFrames = 1000; |
| 85 void incrementSubframeCount() { ++m_subframeCount; } | 81 void incrementSubframeCount() { ++m_subframeCount; } |
| 86 void decrementSubframeCount() { | 82 void decrementSubframeCount() { |
| 87 ASSERT(m_subframeCount); | 83 ASSERT(m_subframeCount); |
| 88 --m_subframeCount; | 84 --m_subframeCount; |
| 89 } | 85 } |
| 90 int subframeCount() const; | 86 int subframeCount() const; |
| 91 | 87 |
| 92 private: | 88 private: |
| 93 explicit FrameHost(Page&); | 89 explicit FrameHost(Page&); |
| 94 | 90 |
| 95 const Member<Page> m_page; | 91 const Member<Page> m_page; |
| 96 | 92 |
| 97 int m_subframeCount; | 93 int m_subframeCount; |
| 98 }; | 94 }; |
| 99 | 95 |
| 100 } // namespace blink | 96 } // namespace blink |
| 101 | 97 |
| 102 #endif // FrameHost_h | 98 #endif // FrameHost_h |
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