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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef NoEventDispatchAssertion_h | |
| 6 #define NoEventDispatchAssertion_h | |
| 7 | |
| 8 #include "wtf/MainThread.h" | |
| 9 #include "wtf/TemporaryChange.h" | |
| 10 | |
| 11 namespace blink { | |
| 12 | |
| 13 #if ENABLE(ASSERT) | |
| 14 | |
| 15 class NoEventDispatchAssertion { | |
| 16 public: | |
| 17 NoEventDispatchAssertion() | |
| 18 { | |
| 19 if (!isMainThread()) | |
| 20 return; | |
| 21 ++s_count; | |
| 22 } | |
| 23 | |
| 24 ~NoEventDispatchAssertion() | |
| 25 { | |
| 26 if (!isMainThread()) | |
| 27 return; | |
| 28 ASSERT(s_count); | |
| 29 --s_count; | |
| 30 } | |
| 31 | |
| 32 static bool isEventDispatchForbidden() | |
| 33 { | |
| 34 if (!isMainThread()) | |
| 35 return false; | |
| 36 return s_count; | |
| 37 } | |
| 38 | |
| 39 class AllowUserAgentEvents { | |
| 40 public: | |
| 41 AllowUserAgentEvents() | |
| 42 : m_change(s_count, 0) | |
| 43 { | |
| 44 } | |
| 45 | |
| 46 ~AllowUserAgentEvents() | |
| 47 { | |
| 48 ASSERT(!s_count); | |
| 49 } | |
| 50 | |
| 51 TemporaryChange<unsigned> m_change; | |
| 52 }; | |
| 53 | |
| 54 private: | |
| 55 static unsigned s_count; | |
| 56 }; | |
| 57 | |
| 58 #else | |
| 59 | |
| 60 class NoEventDispatchAssertion { | |
| 61 public: | |
| 62 NoEventDispatchAssertion() { } | |
| 63 | |
| 64 class AllowUserAgentEvents { | |
| 65 public: | |
| 66 AllowUserAgentEvents() { } | |
| 67 }; | |
| 68 }; | |
| 69 | |
| 70 #endif // ENABLE(ASSERT) | |
| 71 | |
| 72 } // namespace blink | |
| 73 | |
| 74 #endif // NoEventDispatchAssertion_h | |
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Chromium Code Reviews
Issue 446063007:
Rename NoEventDispatchAssertion to EventDispatchForbiddenScope and move it to platform/ (Closed)
Base URL: svn://svn.chromium.org/blink/trunk