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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/185894">185894</a></dd>
<dt>Author</dt> <dd>andersca@apple.com</dd>
<dt>Date</dt> <dd>2015-06-23 17:50:36 -0700 (Tue, 23 Jun 2015)</dd>
</dl>

<h3>Log Message</h3>
<pre>Add a class that tracks whether we're a background or foreground application
https://bugs.webkit.org/show_bug.cgi?id=146259
rdar://problem/19833808

Reviewed by Darin Adler.

First step towards being able to send out these notifications for view services.

* UIProcess/ApplicationStateTracker.h: Added.
(WebKit::ApplicationStateTracker::isInBackground):
* UIProcess/ApplicationStateTracker.mm: Added.
(WebKit::ApplicationStateTracker::singleton):
(WebKit::ApplicationStateTracker::ApplicationStateTracker):
(WebKit::ApplicationStateTracker::addListener):
(WebKit::ApplicationStateTracker::applicationDidEnterBackground):
(WebKit::ApplicationStateTracker::applicationWillEnterForeground):
(WebKit::ApplicationStateTracker::invokeListeners):
(WebKit::ApplicationStateTracker::pruneListeners):
* UIProcess/ios/ProcessAssertionIOS.mm:
(-[WKProcessAssertionBackgroundTaskManager init]):
(-[WKProcessAssertionBackgroundTaskManager _updateBackgroundTask]):
(-[WKProcessAssertionBackgroundTaskManager _applicationWillEnterForeground]):
(-[WKProcessAssertionBackgroundTaskManager _applicationDidEnterBackground]):
(-[WKProcessAssertionBackgroundTaskManager dealloc]): Deleted.
(-[WKProcessAssertionBackgroundTaskManager _applicationWillEnterForeground:]): Deleted.
(-[WKProcessAssertionBackgroundTaskManager _applicationDidEnterBackground:]): Deleted.
* UIProcess/ios/WKContentView.h:
* UIProcess/ios/WKContentView.mm:
(-[WKContentView _commonInitializationWithProcessPool:configuration:]):
(-[WKContentView isBackground]):
(-[WKContentView _applicationDidEnterBackground]):
(-[WKContentView _applicationWillEnterForeground]):
(-[WKContentView _applicationDidEnterBackground:]): Deleted.
(-[WKContentView _applicationWillEnterForeground:]): Deleted.
* WebKit2.xcodeproj/project.pbxproj:</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebKit2ChangeLog">trunk/Source/WebKit2/ChangeLog</a></li>
<li><a href="#trunkSourceWebKit2UIProcessiosProcessAssertionIOSmm">trunk/Source/WebKit2/UIProcess/ios/ProcessAssertionIOS.mm</a></li>
<li><a href="#trunkSourceWebKit2UIProcessiosWKContentViewh">trunk/Source/WebKit2/UIProcess/ios/WKContentView.h</a></li>
<li><a href="#trunkSourceWebKit2UIProcessiosWKContentViewmm">trunk/Source/WebKit2/UIProcess/ios/WKContentView.mm</a></li>
<li><a href="#trunkSourceWebKit2WebKit2xcodeprojprojectpbxproj">trunk/Source/WebKit2/WebKit2.xcodeproj/project.pbxproj</a></li>
</ul>

<h3>Added Paths</h3>
<ul>
<li><a href="#trunkSourceWebKit2UIProcessApplicationStateTrackerh">trunk/Source/WebKit2/UIProcess/ApplicationStateTracker.h</a></li>
<li><a href="#trunkSourceWebKit2UIProcessApplicationStateTrackermm">trunk/Source/WebKit2/UIProcess/ApplicationStateTracker.mm</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceWebKit2ChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/ChangeLog (185893 => 185894)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/ChangeLog        2015-06-24 00:43:03 UTC (rev 185893)
+++ trunk/Source/WebKit2/ChangeLog        2015-06-24 00:50:36 UTC (rev 185894)
</span><span class="lines">@@ -1,5 +1,43 @@
</span><span class="cx"> 2015-06-23  Anders Carlsson  &lt;andersca@apple.com&gt;
</span><span class="cx"> 
</span><ins>+        Add a class that tracks whether we're a background or foreground application
+        https://bugs.webkit.org/show_bug.cgi?id=146259
+        rdar://problem/19833808
+
+        Reviewed by Darin Adler.
+
+        First step towards being able to send out these notifications for view services.
+
+        * UIProcess/ApplicationStateTracker.h: Added.
+        (WebKit::ApplicationStateTracker::isInBackground):
+        * UIProcess/ApplicationStateTracker.mm: Added.
+        (WebKit::ApplicationStateTracker::singleton):
+        (WebKit::ApplicationStateTracker::ApplicationStateTracker):
+        (WebKit::ApplicationStateTracker::addListener):
+        (WebKit::ApplicationStateTracker::applicationDidEnterBackground):
+        (WebKit::ApplicationStateTracker::applicationWillEnterForeground):
+        (WebKit::ApplicationStateTracker::invokeListeners):
+        (WebKit::ApplicationStateTracker::pruneListeners):
+        * UIProcess/ios/ProcessAssertionIOS.mm:
+        (-[WKProcessAssertionBackgroundTaskManager init]):
+        (-[WKProcessAssertionBackgroundTaskManager _updateBackgroundTask]):
+        (-[WKProcessAssertionBackgroundTaskManager _applicationWillEnterForeground]):
+        (-[WKProcessAssertionBackgroundTaskManager _applicationDidEnterBackground]):
+        (-[WKProcessAssertionBackgroundTaskManager dealloc]): Deleted.
+        (-[WKProcessAssertionBackgroundTaskManager _applicationWillEnterForeground:]): Deleted.
+        (-[WKProcessAssertionBackgroundTaskManager _applicationDidEnterBackground:]): Deleted.
+        * UIProcess/ios/WKContentView.h:
+        * UIProcess/ios/WKContentView.mm:
+        (-[WKContentView _commonInitializationWithProcessPool:configuration:]):
+        (-[WKContentView isBackground]):
+        (-[WKContentView _applicationDidEnterBackground]):
+        (-[WKContentView _applicationWillEnterForeground]):
+        (-[WKContentView _applicationDidEnterBackground:]): Deleted.
+        (-[WKContentView _applicationWillEnterForeground:]): Deleted.
+        * WebKit2.xcodeproj/project.pbxproj:
+
+2015-06-23  Anders Carlsson  &lt;andersca@apple.com&gt;
+
</ins><span class="cx">         Remove windowResizerRect code, nobody is using it anymore
</span><span class="cx">         https://bugs.webkit.org/show_bug.cgi?id=146265
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessApplicationStateTrackerh"></a>
<div class="addfile"><h4>Added: trunk/Source/WebKit2/UIProcess/ApplicationStateTracker.h (0 => 185894)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/ApplicationStateTracker.h                                (rev 0)
+++ trunk/Source/WebKit2/UIProcess/ApplicationStateTracker.h        2015-06-24 00:50:36 UTC (rev 185894)
</span><span class="lines">@@ -0,0 +1,73 @@
</span><ins>+/*
+ * 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 &quot;WeakObjCPtr.h&quot;
+#import &lt;wtf/Forward.h&gt;
+#import &lt;wtf/Vector.h&gt;
+
+namespace WebKit {
+
+class ApplicationStateTracker {
+    friend NeverDestroyed&lt;ApplicationStateTracker&gt;;
+
+public:
+    static ApplicationStateTracker&amp; singleton();
+
+    bool isInBackground() const { return m_isInBackground; }
+
+    void addListener(id, SEL willEnterForegroundSelector, SEL didEnterBackgroundSelector);
+
+private:
+    ApplicationStateTracker();
+    ~ApplicationStateTracker() = delete;
+
+    void applicationDidEnterBackground();
+    void applicationWillEnterForeground();
+
+    struct Listener;
+
+    void invokeListeners(SEL Listener::*);
+    void pruneListeners();
+
+    bool m_isInBackground;
+
+    struct Listener {
+        WeakObjCPtr&lt;id&gt; object;
+        SEL didEnterBackgroundSelector;
+        SEL willEnterForegroundSelector;
+    };
+    Vector&lt;Listener&gt; m_listeners;
+};
+
+}
+
+#endif
+
+#endif // ApplicationStateTracker_h
</ins></span></pre></div>
<a id="trunkSourceWebKit2UIProcessApplicationStateTrackermm"></a>
<div class="addfile"><h4>Added: trunk/Source/WebKit2/UIProcess/ApplicationStateTracker.mm (0 => 185894)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/ApplicationStateTracker.mm                                (rev 0)
+++ trunk/Source/WebKit2/UIProcess/ApplicationStateTracker.mm        2015-06-24 00:50:36 UTC (rev 185894)
</span><span class="lines">@@ -0,0 +1,115 @@
</span><ins>+/*
+ * 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.
+ */
+
+#import &quot;config.h&quot;
+#import &quot;ApplicationStateTracker.h&quot;
+
+#if PLATFORM(IOS)
+
+#import &lt;UIKit/UIApplication.h&gt;
+#import &lt;wtf/NeverDestroyed.h&gt;
+#import &lt;wtf/ObjcRuntimeExtras.h&gt;
+
+namespace WebKit {
+
+ApplicationStateTracker&amp; ApplicationStateTracker::singleton()
+{
+    static NeverDestroyed&lt;ApplicationStateTracker&gt; applicationStateTracker;
+
+    return applicationStateTracker;
+}
+
+ApplicationStateTracker::ApplicationStateTracker()
+{
+    UIApplication *application = [UIApplication sharedApplication];
+    NSNotificationCenter *notificationCenter = [NSNotificationCenter defaultCenter];
+
+    m_isInBackground = application.applicationState == UIApplicationStateBackground;
+
+    [notificationCenter addObserverForName:UIApplicationDidEnterBackgroundNotification object:application queue:nil usingBlock:[this](NSNotification *) {
+        applicationDidEnterBackground();
+    }];
+
+    [notificationCenter addObserverForName:UIApplicationWillEnterForegroundNotification object:application queue:nil usingBlock:[this](NSNotification *) {
+        applicationWillEnterForeground();
+    }];
+}
+
+void ApplicationStateTracker::addListener(id object, SEL willEnterForegroundSelector, SEL didEnterBackgroundSelector)
+{
+    ASSERT([object respondsToSelector:willEnterForegroundSelector]);
+    ASSERT([object respondsToSelector:didEnterBackgroundSelector]);
+
+    m_listeners.append({ object, willEnterForegroundSelector, didEnterBackgroundSelector });
+}
+
+void ApplicationStateTracker::applicationDidEnterBackground()
+{
+    m_isInBackground = true;
+
+    invokeListeners(&amp;Listener::didEnterBackgroundSelector);
+}
+
+void ApplicationStateTracker::applicationWillEnterForeground()
+{
+    m_isInBackground = false;
+
+    invokeListeners(&amp;Listener::willEnterForegroundSelector);
+}
+
+void ApplicationStateTracker::invokeListeners(SEL Listener::* selector)
+{
+    bool shouldPruneListeners = false;
+
+    for (auto&amp; listener : m_listeners) {
+        auto object = listener.object.get();
+        if (!object) {
+            shouldPruneListeners = true;
+            continue;
+        }
+
+        wtfObjcMsgSend&lt;void&gt;(object.get(), listener.*selector);
+    }
+
+    if (shouldPruneListeners)
+        pruneListeners();
+}
+
+void ApplicationStateTracker::pruneListeners()
+{
+    auto listeners = WTF::move(m_listeners);
+    ASSERT(m_listeners.isEmpty());
+
+    for (auto&amp; listener : listeners) {
+        if (!listener.object)
+            continue;
+
+        m_listeners.append(WTF::move(listener));
+    }
+}
+
+}
+
+#endif
</ins></span></pre></div>
<a id="trunkSourceWebKit2UIProcessiosProcessAssertionIOSmm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/ios/ProcessAssertionIOS.mm (185893 => 185894)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/ios/ProcessAssertionIOS.mm        2015-06-24 00:43:03 UTC (rev 185893)
+++ trunk/Source/WebKit2/UIProcess/ios/ProcessAssertionIOS.mm        2015-06-24 00:50:36 UTC (rev 185894)
</span><span class="lines">@@ -28,6 +28,7 @@
</span><span class="cx"> 
</span><span class="cx"> #if PLATFORM(IOS)
</span><span class="cx"> 
</span><ins>+#import &quot;ApplicationStateTracker.h&quot;
</ins><span class="cx"> #import &quot;BKSProcessAssertionSPI.h&quot;
</span><span class="cx"> #import &lt;UIKit/UIApplication.h&gt;
</span><span class="cx"> #import &lt;wtf/HashSet.h&gt;
</span><span class="lines">@@ -52,7 +53,6 @@
</span><span class="cx"> @implementation WKProcessAssertionBackgroundTaskManager
</span><span class="cx"> {
</span><span class="cx">     unsigned _needsToRunInBackgroundCount;
</span><del>-    BOOL _appIsBackground;
</del><span class="cx">     UIBackgroundTaskIdentifier _backgroundTask;
</span><span class="cx">     HashSet&lt;ProcessAssertionClient*&gt; _clients;
</span><span class="cx"> }
</span><span class="lines">@@ -69,22 +69,15 @@
</span><span class="cx">     if (!self)
</span><span class="cx">         return nil;
</span><span class="cx"> 
</span><del>-    _appIsBackground = [UIApplication sharedApplication].applicationState == UIApplicationStateBackground;
</del><span class="cx">     _backgroundTask = UIBackgroundTaskInvalid;
</span><span class="cx"> 
</span><del>-    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
-    [center addObserver:self selector:@selector(_applicationWillEnterForeground:) name:UIApplicationWillEnterForegroundNotification object:nil];
-    [center addObserver:self selector:@selector(_applicationDidEnterBackground:) name:UIApplicationDidEnterBackgroundNotification object:nil];
</del><ins>+    WebKit::ApplicationStateTracker::singleton().addListener(self, _applicationWillEnterForeground, _applicationDidEnterBackground);
</ins><span class="cx"> 
</span><span class="cx">     return self;
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> - (void)dealloc
</span><span class="cx"> {
</span><del>-    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
-    [center removeObserver:self name:UIApplicationWillEnterForegroundNotification object:nil];
-    [center removeObserver:self name:UIApplicationDidEnterBackgroundNotification object:nil];
-
</del><span class="cx">     if (_backgroundTask != UIBackgroundTaskInvalid)
</span><span class="cx">         [[UIApplication sharedApplication] endBackgroundTask:_backgroundTask];
</span><span class="cx"> 
</span><span class="lines">@@ -103,7 +96,7 @@
</span><span class="cx"> 
</span><span class="cx"> - (void)_updateBackgroundTask
</span><span class="cx"> {
</span><del>-    bool shouldHoldTask = _needsToRunInBackgroundCount &amp;&amp; _appIsBackground;
</del><ins>+    bool shouldHoldTask = _needsToRunInBackgroundCount &amp;&amp; WebKit::ApplicationStateTracker::singleton().isInBackground();
</ins><span class="cx"> 
</span><span class="cx">     if (shouldHoldTask &amp;&amp; _backgroundTask == UIBackgroundTaskInvalid) {
</span><span class="cx">         _backgroundTask = [[UIApplication sharedApplication] beginBackgroundTaskWithName:@&quot;com.apple.WebKit.ProcessAssertion&quot; expirationHandler:^{
</span><span class="lines">@@ -123,15 +116,13 @@
</span><span class="cx">     }
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-- (void)_applicationWillEnterForeground:(NSNotification *)notification
</del><ins>+- (void)_applicationWillEnterForeground
</ins><span class="cx"> {
</span><del>-    _appIsBackground = NO;
</del><span class="cx">     [self _updateBackgroundTask];
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-- (void)_applicationDidEnterBackground:(NSNotification *)notification
</del><ins>+- (void)_applicationDidEnterBackground
</ins><span class="cx"> {
</span><del>-    _appIsBackground = YES;
</del><span class="cx">     [self _updateBackgroundTask];
</span><span class="cx"> }
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessiosWKContentViewh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/ios/WKContentView.h (185893 => 185894)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/ios/WKContentView.h        2015-06-24 00:43:03 UTC (rev 185893)
+++ trunk/Source/WebKit2/UIProcess/ios/WKContentView.h        2015-06-24 00:50:36 UTC (rev 185894)
</span><span class="lines">@@ -52,7 +52,6 @@
</span><span class="cx"> @package
</span><span class="cx">     RefPtr&lt;WebKit::WebPageProxy&gt; _page;
</span><span class="cx">     WKWebView *_webView;
</span><del>-    BOOL _isBackground;
</del><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> @property (nonatomic, readonly) WKBrowsingContextController *browsingContextController;
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessiosWKContentViewmm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/ios/WKContentView.mm (185893 => 185894)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/ios/WKContentView.mm        2015-06-24 00:43:03 UTC (rev 185893)
+++ trunk/Source/WebKit2/UIProcess/ios/WKContentView.mm        2015-06-24 00:50:36 UTC (rev 185894)
</span><span class="lines">@@ -28,6 +28,7 @@
</span><span class="cx"> 
</span><span class="cx"> #if PLATFORM(IOS)
</span><span class="cx"> 
</span><ins>+#import &quot;ApplicationStateTracker.h&quot;
</ins><span class="cx"> #import &quot;PageClientImplIOS.h&quot;
</span><span class="cx"> #import &quot;RemoteLayerTreeDrawingAreaProxy.h&quot;
</span><span class="cx"> #import &quot;RemoteScrollingCoordinatorProxy.h&quot;
</span><span class="lines">@@ -188,8 +189,6 @@
</span><span class="cx">     _page-&gt;setUseFixedLayout(true);
</span><span class="cx">     _page-&gt;setDelegatesScrolling(true);
</span><span class="cx"> 
</span><del>-    _isBackground = [UIApplication sharedApplication].applicationState == UIApplicationStateBackground;
-
</del><span class="cx">     WebProcessPool::statistics().wkViewCount++;
</span><span class="cx"> 
</span><span class="cx">     _rootContentView = adoptNS([[UIView alloc] init]);
</span><span class="lines">@@ -211,8 +210,8 @@
</span><span class="cx"> 
</span><span class="cx">     self.layer.hitTestsAsOpaque = YES;
</span><span class="cx"> 
</span><del>-    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_applicationDidEnterBackground:) name:UIApplicationDidEnterBackgroundNotification object:[UIApplication sharedApplication]];
-    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_applicationWillEnterForeground:) name:UIApplicationWillEnterForegroundNotification object:[UIApplication sharedApplication]];
</del><ins>+    ApplicationStateTracker::singleton().addListener(self, @selector(_applicationDidEnterBackground), @selector(_applicationWillEnterForeground));
+
</ins><span class="cx">     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_applicationWillResignActive:) name:UIApplicationWillResignActiveNotification object:[UIApplication sharedApplication]];
</span><span class="cx">     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_applicationDidBecomeActive:) name:UIApplicationDidBecomeActiveNotification object:[UIApplication sharedApplication]];
</span><span class="cx"> 
</span><span class="lines">@@ -306,7 +305,7 @@
</span><span class="cx"> 
</span><span class="cx"> - (BOOL)isBackground
</span><span class="cx"> {
</span><del>-    return _isBackground;
</del><ins>+    return ApplicationStateTracker::singleton().isInBackground();
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> - (void)_showInspectorHighlight:(const WebCore::Highlight&amp;)highlight
</span><span class="lines">@@ -541,16 +540,14 @@
</span><span class="cx">     _page-&gt;applicationWillResignActive();
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-- (void)_applicationDidEnterBackground:(NSNotification*)notification
</del><ins>+- (void)_applicationDidEnterBackground
</ins><span class="cx"> {
</span><del>-    _isBackground = YES;
</del><span class="cx">     _page-&gt;applicationDidEnterBackground();
</span><span class="cx">     _page-&gt;viewStateDidChange(ViewState::AllFlags &amp; ~ViewState::IsInWindow);
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-- (void)_applicationWillEnterForeground:(NSNotification*)notification
</del><ins>+- (void)_applicationWillEnterForeground
</ins><span class="cx"> {
</span><del>-    _isBackground = NO;
</del><span class="cx">     _page-&gt;applicationWillEnterForeground();
</span><span class="cx">     if (auto drawingArea = _page-&gt;drawingArea())
</span><span class="cx">         drawingArea-&gt;hideContentUntilNextUpdate();
</span></span></pre></div>
<a id="trunkSourceWebKit2WebKit2xcodeprojprojectpbxproj"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/WebKit2.xcodeproj/project.pbxproj (185893 => 185894)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/WebKit2.xcodeproj/project.pbxproj        2015-06-24 00:43:03 UTC (rev 185893)
+++ trunk/Source/WebKit2/WebKit2.xcodeproj/project.pbxproj        2015-06-24 00:50:36 UTC (rev 185894)
</span><span class="lines">@@ -444,6 +444,8 @@
</span><span class="cx">                 1AD25E96167AB08100EA9BCD /* DownloadProxyMap.h in Headers */ = {isa = PBXBuildFile; fileRef = 1AD25E94167AB08100EA9BCD /* DownloadProxyMap.h */; };
</span><span class="cx">                 1AD3306E16B1D991004F60E7 /* StorageAreaImpl.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 1AD3306C16B1D991004F60E7 /* StorageAreaImpl.cpp */; };
</span><span class="cx">                 1AD3306F16B1D991004F60E7 /* StorageAreaImpl.h in Headers */ = {isa = PBXBuildFile; fileRef = 1AD3306D16B1D991004F60E7 /* StorageAreaImpl.h */; };
</span><ins>+                1AD4C1921B39F33200ABC28E /* ApplicationStateTracker.mm in Sources */ = {isa = PBXBuildFile; fileRef = 1AD4C1901B39F33200ABC28E /* ApplicationStateTracker.mm */; };
+                1AD4C1931B39F33200ABC28E /* ApplicationStateTracker.h in Headers */ = {isa = PBXBuildFile; fileRef = 1AD4C1911B39F33200ABC28E /* ApplicationStateTracker.h */; };
</ins><span class="cx">                 1AD60F5D18E20F4C0020C034 /* WKWindowFeatures.mm in Sources */ = {isa = PBXBuildFile; fileRef = 1AD60F5B18E20F4C0020C034 /* WKWindowFeatures.mm */; };
</span><span class="cx">                 1AD60F5E18E20F4C0020C034 /* WKWindowFeatures.h in Headers */ = {isa = PBXBuildFile; fileRef = 1AD60F5C18E20F4C0020C034 /* WKWindowFeatures.h */; settings = {ATTRIBUTES = (Public, ); }; };
</span><span class="cx">                 1AD60F6018E20F740020C034 /* WKWindowFeaturesInternal.h in Headers */ = {isa = PBXBuildFile; fileRef = 1AD60F5F18E20F740020C034 /* WKWindowFeaturesInternal.h */; };
</span><span class="lines">@@ -2560,6 +2562,8 @@
</span><span class="cx">                 1AD25E94167AB08100EA9BCD /* DownloadProxyMap.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = DownloadProxyMap.h; sourceTree = &quot;&lt;group&gt;&quot;; };
</span><span class="cx">                 1AD3306C16B1D991004F60E7 /* StorageAreaImpl.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = StorageAreaImpl.cpp; sourceTree = &quot;&lt;group&gt;&quot;; };
</span><span class="cx">                 1AD3306D16B1D991004F60E7 /* StorageAreaImpl.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = StorageAreaImpl.h; sourceTree = &quot;&lt;group&gt;&quot;; };
</span><ins>+                1AD4C1901B39F33200ABC28E /* ApplicationStateTracker.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = ApplicationStateTracker.mm; sourceTree = &quot;&lt;group&gt;&quot;; };
+                1AD4C1911B39F33200ABC28E /* ApplicationStateTracker.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ApplicationStateTracker.h; sourceTree = &quot;&lt;group&gt;&quot;; };
</ins><span class="cx">                 1AD60F5B18E20F4C0020C034 /* WKWindowFeatures.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = WKWindowFeatures.mm; sourceTree = &quot;&lt;group&gt;&quot;; };
</span><span class="cx">                 1AD60F5C18E20F4C0020C034 /* WKWindowFeatures.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = WKWindowFeatures.h; sourceTree = &quot;&lt;group&gt;&quot;; };
</span><span class="cx">                 1AD60F5F18E20F740020C034 /* WKWindowFeaturesInternal.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = WKWindowFeaturesInternal.h; sourceTree = &quot;&lt;group&gt;&quot;; };
</span><span class="lines">@@ -5103,6 +5107,8 @@
</span><span class="cx">                         isa = PBXGroup;
</span><span class="cx">                         children = (
</span><span class="cx">                                 C54256AE18BEC16100DE4179 /* forms */,
</span><ins>+                                1AD4C1911B39F33200ABC28E /* ApplicationStateTracker.h */,
+                                1AD4C1901B39F33200ABC28E /* ApplicationStateTracker.mm */,
</ins><span class="cx">                                 A115DC6E191D82AB00DA8072 /* _WKWebViewPrintFormatter.h */,
</span><span class="cx">                                 A115DC6D191D82AB00DA8072 /* _WKWebViewPrintFormatter.mm */,
</span><span class="cx">                                 0F0C365D18C110A500F607D7 /* LayerRepresentation.mm */,
</span><span class="lines">@@ -8349,6 +8355,7 @@
</span><span class="cx">                                 1A66BF8F18A052ED002071B4 /* WKWebViewInternal.h in Headers */,
</span><span class="cx">                                 26F9A83B18A3468100AEB88A /* WKWebViewPrivate.h in Headers */,
</span><span class="cx">                                 1AD60F5E18E20F4C0020C034 /* WKWindowFeatures.h in Headers */,
</span><ins>+                                1AD4C1931B39F33200ABC28E /* ApplicationStateTracker.h in Headers */,
</ins><span class="cx">                                 1AD60F6018E20F740020C034 /* WKWindowFeaturesInternal.h in Headers */,
</span><span class="cx">                                 BCBECDE816B6416800047A1A /* XPCServiceEntryPoint.h in Headers */,
</span><span class="cx">                         );
</span><span class="lines">@@ -9579,6 +9586,7 @@
</span><span class="cx">                                 1AEFCC1311D01F96008219D3 /* PluginInfoStore.cpp in Sources */,
</span><span class="cx">                                 1AEFCCBD11D02C5E008219D3 /* PluginInfoStoreMac.mm in Sources */,
</span><span class="cx">                                 1A043977124D034800FFBFB5 /* PluginProcess.cpp in Sources */,
</span><ins>+                                1AD4C1921B39F33200ABC28E /* ApplicationStateTracker.mm in Sources */,
</ins><span class="cx">                                 1A0EC907124C0AB8007EF4A5 /* PluginProcessConnection.cpp in Sources */,
</span><span class="cx">                                 1A0EC910124C0AF5007EF4A5 /* PluginProcessConnectionManager.cpp in Sources */,
</span><span class="cx">                                 1A7865B916CAC71500ACE83A /* PluginProcessConnectionManagerMessageReceiver.cpp in Sources */,
</span></span></pre>
</div>
</div>

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