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Side by Side Diff: base/mac/scoped_sending_event.h

Issue 8724004: [Mac] Move ScopedSendingEvent from content/common/mac to base/mac. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 9 years ago
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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2011 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 CONTENT_COMMON_MAC_SCOPED_SENDING_EVENT_H_ 5 #ifndef BASE_MAC_SCOPED_SENDING_EVENT_H_
6 #define CONTENT_COMMON_MAC_SCOPED_SENDING_EVENT_H_ 6 #define BASE_MAC_SCOPED_SENDING_EVENT_H_
7 #pragma once 7 #pragma once
8 8
9 #include "base/basictypes.h" 9 #include "base/basictypes.h"
10 #include "base/memory/scoped_nsobject.h" 10 #include "base/memory/scoped_nsobject.h"
11 #include "base/message_pump_mac.h" 11 #include "base/message_pump_mac.h"
12 12
13 // Nested event loops can pump IPC messages, including 13 // Nested event loops can pump IPC messages, including
14 // script-initiated tab closes, which could release objects that the 14 // script-initiated tab closes, which could release objects that the
15 // nested event loop might message. CrAppProtocol defines how to ask 15 // nested event loop might message. CrAppProtocol defines how to ask
16 // the embedding NSApplication subclass if an event is currently being 16 // the embedding NSApplication subclass if an event is currently being
17 // handled, in which case such closes are deferred to the top-level 17 // handled, in which case such closes are deferred to the top-level
18 // event loop. 18 // event loop.
19 // 19 //
20 // ScopedSendingEvent allows script-initiated event loops to work like 20 // ScopedSendingEvent allows script-initiated event loops to work like
21 // a nested event loop, as such events do not arrive via -sendEvent:. 21 // a nested event loop, as such events do not arrive via -sendEvent:.
22 // CrAppControlProtocol lets ScopedSendingEvent tell the embedding 22 // CrAppControlProtocol lets ScopedSendingEvent tell the embedding
23 // NSApplication what to return from -handlingSendEvent. 23 // NSApplication what to return from -handlingSendEvent.
24 24
25 @protocol CrAppControlProtocol<CrAppProtocol> 25 @protocol CrAppControlProtocol<CrAppProtocol>
26 - (void)setHandlingSendEvent:(BOOL)handlingSendEvent; 26 - (void)setHandlingSendEvent:(BOOL)handlingSendEvent;
27 @end 27 @end
28 28
29 namespace content { 29 namespace base {
30 namespace mac { 30 namespace mac {
31 31
32 class ScopedSendingEvent { 32 class ScopedSendingEvent {
33 public: 33 public:
34 ScopedSendingEvent(); 34 ScopedSendingEvent();
35 ~ScopedSendingEvent(); 35 ~ScopedSendingEvent();
36 36
37 private: 37 private:
38 // The NSApp in control at the time the constructor was run, to be 38 // The NSApp in control at the time the constructor was run, to be
39 // sure the |handling_| setting is restored appropriately. 39 // sure the |handling_| setting is restored appropriately.
40 NSObject<CrAppControlProtocol>* app_; 40 NSObject<CrAppControlProtocol>* app_;
41 BOOL handling_; // Value of -[app_ handlingSendEvent] at construction. 41 BOOL handling_; // Value of -[app_ handlingSendEvent] at construction.
42 42
43 DISALLOW_COPY_AND_ASSIGN(ScopedSendingEvent); 43 DISALLOW_COPY_AND_ASSIGN(ScopedSendingEvent);
44 }; 44 };
45 45
46 } // namespace mac 46 } // namespace mac
47 } // namespace content 47 } // namespace base
48 48
49 #endif // CONTENT_COMMON_MAC_SCOPED_SENDING_EVENT_H_ 49 #endif // BASE_MAC_SCOPED_SENDING_EVENT_H_
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