webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

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diff --git a/Source/WebKit2/UIProcess/ApplicationStateTracker.h b/Source/WebKit2/UIProcess/ApplicationStateTracker.h
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+/*
+ * Copyright (C) 2015 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef ApplicationStateTracker_h
+#define ApplicationStateTracker_h
+
+#if PLATFORM(IOS)
+
+#import "WeakObjCPtr.h"
+#import <wtf/Forward.h>
+#import <wtf/WeakPtr.h>
+
+OBJC_CLASS BKSApplicationStateMonitor;
+OBJC_CLASS UIView;
+
+namespace WebKit {
+
+class ApplicationStateTracker {
+public:
+    ApplicationStateTracker(UIView *, SEL didEnterBackgroundSelector, SEL didCreateWindowContextSelector, SEL didFinishSnapshottingAfterEnteringBackgroundSelector, SEL willEnterForegroundSelector);
+    ~ApplicationStateTracker();
+
+    bool isInBackground() const { return m_isInBackground; }
+
+private:
+    void applicationDidEnterBackground();
+    void applicationDidCreateWindowContext();
+    void applicationDidFinishSnapshottingAfterEnteringBackground();
+    void applicationWillEnterForeground();
+
+    WeakObjCPtr<UIView> m_view;
+    SEL m_didEnterBackgroundSelector;
+    SEL m_didCreateWindowContextSelector;
+    SEL m_didFinishSnapshottingAfterEnteringBackgroundSelector;
+    SEL m_willEnterForegroundSelector;
+
+    bool m_isInBackground;
+
+    WeakPtrFactory<ApplicationStateTracker> m_weakPtrFactory;
+
+    RetainPtr<BKSApplicationStateMonitor> m_applicationStateMonitor;
+
+    id m_didEnterBackgroundObserver;
+    id m_didCreateWindowContextObserver;
+    id m_didFinishSnapshottingAfterEnteringBackgroundObserver;
+    id m_willEnterForegroundObserver;
+};
+
+}
+
+#endif
+
+#endif // ApplicationStateTracker_h