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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef OpenedFrameTracker_h | 5 #ifndef OpenedFrameTracker_h |
6 #define OpenedFrameTracker_h | 6 #define OpenedFrameTracker_h |
7 | 7 |
8 #include "wtf/FastAllocBase.h" | |
9 #include "wtf/HashSet.h" | 8 #include "wtf/HashSet.h" |
10 #include "wtf/Noncopyable.h" | 9 #include "wtf/Noncopyable.h" |
11 | 10 |
12 namespace blink { | 11 namespace blink { |
13 | 12 |
14 class Visitor; | 13 class Visitor; |
15 class InlinedGlobalMarkingVisitor; | 14 class InlinedGlobalMarkingVisitor; |
16 class WebFrame; | 15 class WebFrame; |
17 | 16 |
18 // Small helper class to track the set of frames that a WebFrame has opened. | 17 // Small helper class to track the set of frames that a WebFrame has opened. |
19 // Due to layering restrictions, we need to hide the implementation, since | 18 // Due to layering restrictions, we need to hide the implementation, since |
20 // public/web/ cannot depend on wtf/. | 19 // public/web/ cannot depend on wtf/. |
21 class OpenedFrameTracker { | 20 class OpenedFrameTracker { |
22 WTF_MAKE_FAST_ALLOCATED(OpenedFrameTracker); | |
23 WTF_MAKE_NONCOPYABLE(OpenedFrameTracker); | 21 WTF_MAKE_NONCOPYABLE(OpenedFrameTracker); |
24 public: | 22 public: |
25 OpenedFrameTracker(); | 23 OpenedFrameTracker(); |
26 ~OpenedFrameTracker(); | 24 ~OpenedFrameTracker(); |
27 | 25 |
28 bool isEmpty() const; | 26 bool isEmpty() const; |
29 void add(WebFrame*); | 27 void add(WebFrame*); |
30 void remove(WebFrame*); | 28 void remove(WebFrame*); |
31 | 29 |
32 // Updates the opener for all tracked frames. | 30 // Updates the opener for all tracked frames. |
33 void updateOpener(WebFrame*); | 31 void updateOpener(WebFrame*); |
34 | 32 |
35 void traceFrames(Visitor*); | 33 void traceFrames(Visitor*); |
36 void traceFrames(InlinedGlobalMarkingVisitor); | 34 void traceFrames(InlinedGlobalMarkingVisitor); |
37 | 35 |
38 private: | 36 private: |
39 template <typename VisitorDispatcher> | 37 template <typename VisitorDispatcher> |
40 void traceFramesImpl(VisitorDispatcher); | 38 void traceFramesImpl(VisitorDispatcher); |
41 | 39 |
42 WTF::HashSet<WebFrame*> m_openedFrames; | 40 WTF::HashSet<WebFrame*> m_openedFrames; |
43 }; | 41 }; |
44 | 42 |
45 } // namespace blink | 43 } // namespace blink |
46 | 44 |
47 #endif // WebFramePrivate_h | 45 #endif // WebFramePrivate_h |
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