Index: content/common/mac/app_nap_activity.mm |
diff --git a/content/common/mac/app_nap_activity.mm b/content/common/mac/app_nap_activity.mm |
new file mode 100644 |
index 0000000000000000000000000000000000000000..d2c82e80a8687d31ee4bbf1d4df96694d84facaf |
--- /dev/null |
+++ b/content/common/mac/app_nap_activity.mm |
@@ -0,0 +1,50 @@ |
+// Copyright 2017 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#include "content/common/mac/app_nap_activity.h" |
+ |
+#import <Foundation/Foundation.h> |
+ |
+#include "base/mac/scoped_nsobject.h" |
+ |
+namespace content { |
+ |
+namespace { |
+ |
+NSString* const kActivityReason = @"Process foregrounded"; |
+const NSActivityOptions kActivityOptions = |
+ (NSActivityUserInitiatedAllowingIdleSystemSleep | |
+ NSActivityLatencyCritical) & |
+ ~(NSActivitySuddenTerminationDisabled | |
+ NSActivityAutomaticTerminationDisabled); |
+ |
+} // namespace |
+ |
+struct AssertionWrapper { |
+ base::scoped_nsobject<id> obj; |
+}; |
+ |
+AppNapActivity::AppNapActivity() { |
+ assertion_.reset(new AssertionWrapper()); |
+}; |
+ |
+AppNapActivity::~AppNapActivity() { |
+ DCHECK(!assertion_->obj.get()); |
+}; |
+ |
+void AppNapActivity::Begin() { |
+ DCHECK(!assertion_->obj.get()); |
+ id assertion = |
+ [[NSProcessInfo processInfo] beginActivityWithOptions:kActivityOptions |
+ reason:kActivityReason]; |
+ assertion_->obj.reset([assertion retain]); |
+} |
+ |
+void AppNapActivity::End() { |
+ id assertion = assertion_->obj.autorelease(); |
+ DCHECK(assertion); |
+ [[NSProcessInfo processInfo] endActivity:assertion]; |
+} |
+ |
+} // namespace content |