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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/186538">186538</a></dd>
<dt>Author</dt> <dd>mrajca@apple.com</dd>
<dt>Date</dt> <dd>2015-07-08 16:46:16 -0700 (Wed, 08 Jul 2015)</dd>
</dl>

<h3>Log Message</h3>
<pre>Media Session: indicate to clients whether a media session has active media elements
https://bugs.webkit.org/show_bug.cgi?id=146742

Reviewed by Tim Horton.

* UIProcess/API/C/WKPage.cpp:
(WKPageHasMediaSessionWithActiveMediaElements):
* UIProcess/API/C/WKPagePrivate.h:
* UIProcess/WebPageProxy.cpp:
(WebKit::WebPageProxy::hasMediaSessionWithActiveMediaElementsDidChange):
* UIProcess/WebPageProxy.h:
(WebKit::WebPageProxy::hasMediaSessionWithActiveMediaElementsDidChange):
* UIProcess/WebPageProxy.messages.in:
* WebProcess/WebCoreSupport/WebChromeClient.cpp:
(WebKit::WebChromeClient::hasMediaSessionWithActiveMediaElementsDidChange):
* WebProcess/WebCoreSupport/WebChromeClient.h:</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebCorepageChromeClienth">trunk/Source/WebCore/page/ChromeClient.h</a></li>
<li><a href="#trunkSourceWebKit2ChangeLog">trunk/Source/WebKit2/ChangeLog</a></li>
<li><a href="#trunkSourceWebKit2UIProcessAPICWKPagecpp">trunk/Source/WebKit2/UIProcess/API/C/WKPage.cpp</a></li>
<li><a href="#trunkSourceWebKit2UIProcessAPICWKPagePrivateh">trunk/Source/WebKit2/UIProcess/API/C/WKPagePrivate.h</a></li>
<li><a href="#trunkSourceWebKit2UIProcessWebPageProxycpp">trunk/Source/WebKit2/UIProcess/WebPageProxy.cpp</a></li>
<li><a href="#trunkSourceWebKit2UIProcessWebPageProxyh">trunk/Source/WebKit2/UIProcess/WebPageProxy.h</a></li>
<li><a href="#trunkSourceWebKit2UIProcessWebPageProxymessagesin">trunk/Source/WebKit2/UIProcess/WebPageProxy.messages.in</a></li>
<li><a href="#trunkSourceWebKit2WebProcessWebCoreSupportWebChromeClientcpp">trunk/Source/WebKit2/WebProcess/WebCoreSupport/WebChromeClient.cpp</a></li>
<li><a href="#trunkSourceWebKit2WebProcessWebCoreSupportWebChromeClienth">trunk/Source/WebKit2/WebProcess/WebCoreSupport/WebChromeClient.h</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceWebCorepageChromeClienth"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/page/ChromeClient.h (186537 => 186538)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/page/ChromeClient.h        2015-07-08 23:46:11 UTC (rev 186537)
+++ trunk/Source/WebCore/page/ChromeClient.h        2015-07-08 23:46:16 UTC (rev 186538)
</span><span class="lines">@@ -419,6 +419,7 @@
</span><span class="cx">     virtual void isPlayingMediaDidChange(MediaProducer::MediaStateFlags) { }
</span><span class="cx"> 
</span><span class="cx"> #if ENABLE(MEDIA_SESSION)
</span><ins>+    virtual void hasMediaSessionWithActiveMediaElementsDidChange(bool) { }
</ins><span class="cx">     virtual void mediaSessionMetadataDidChange(const WebCore::MediaSessionMetadata&amp;) { }
</span><span class="cx"> #endif
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebKit2ChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/ChangeLog (186537 => 186538)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/ChangeLog        2015-07-08 23:46:11 UTC (rev 186537)
+++ trunk/Source/WebKit2/ChangeLog        2015-07-08 23:46:16 UTC (rev 186538)
</span><span class="lines">@@ -1,3 +1,22 @@
</span><ins>+2015-07-08  Matt Rajca  &lt;mrajca@apple.com&gt;
+
+        Media Session: indicate to clients whether a media session has active media elements
+        https://bugs.webkit.org/show_bug.cgi?id=146742
+
+        Reviewed by Tim Horton.
+
+        * UIProcess/API/C/WKPage.cpp:
+        (WKPageHasMediaSessionWithActiveMediaElements):
+        * UIProcess/API/C/WKPagePrivate.h:
+        * UIProcess/WebPageProxy.cpp:
+        (WebKit::WebPageProxy::hasMediaSessionWithActiveMediaElementsDidChange):
+        * UIProcess/WebPageProxy.h:
+        (WebKit::WebPageProxy::hasMediaSessionWithActiveMediaElementsDidChange):
+        * UIProcess/WebPageProxy.messages.in:
+        * WebProcess/WebCoreSupport/WebChromeClient.cpp:
+        (WebKit::WebChromeClient::hasMediaSessionWithActiveMediaElementsDidChange):
+        * WebProcess/WebCoreSupport/WebChromeClient.h:
+
</ins><span class="cx"> 2015-07-07  Matt Rajca  &lt;mrajca@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Media Session: propagate artwork URL with metadata to UI clients
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessAPICWKPagecpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/API/C/WKPage.cpp (186537 => 186538)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/API/C/WKPage.cpp        2015-07-08 23:46:11 UTC (rev 186537)
+++ trunk/Source/WebKit2/UIProcess/API/C/WKPage.cpp        2015-07-08 23:46:16 UTC (rev 186538)
</span><span class="lines">@@ -2153,6 +2153,16 @@
</span><span class="cx">     toImpl(page)-&gt;setMuted(muted);
</span><span class="cx"> }
</span><span class="cx"> 
</span><ins>+bool WKPageHasMediaSessionWithActiveMediaElements(WKPageRef page)
+{
+#if ENABLE(MEDIA_SESSION)
+    return toImpl(page)-&gt;hasMediaSessionWithActiveMediaElements();
+#else
+    UNUSED_PARAM(page);
+    return false;
+#endif
+}
+
</ins><span class="cx"> void WKPageHandleMediaEvent(WKPageRef page, WKMediaEventType wkEventType)
</span><span class="cx"> {
</span><span class="cx"> #if ENABLE(MEDIA_SESSION)
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessAPICWKPagePrivateh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/API/C/WKPagePrivate.h (186537 => 186538)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/API/C/WKPagePrivate.h        2015-07-08 23:46:11 UTC (rev 186537)
+++ trunk/Source/WebKit2/UIProcess/API/C/WKPagePrivate.h        2015-07-08 23:46:16 UTC (rev 186538)
</span><span class="lines">@@ -118,6 +118,7 @@
</span><span class="cx"> };
</span><span class="cx"> typedef uint32_t WKMediaEventType;
</span><span class="cx"> 
</span><ins>+WK_EXPORT bool WKPageHasMediaSessionWithActiveMediaElements(WKPageRef page);
</ins><span class="cx"> WK_EXPORT void WKPageHandleMediaEvent(WKPageRef page, WKMediaEventType event);
</span><span class="cx"> 
</span><span class="cx"> WK_EXPORT void WKPageLoadURLWithShouldOpenExternalURLsPolicy(WKPageRef page, WKURLRef url, bool shouldOpenExternalURLs);
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessWebPageProxycpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/WebPageProxy.cpp (186537 => 186538)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/WebPageProxy.cpp        2015-07-08 23:46:11 UTC (rev 186537)
+++ trunk/Source/WebKit2/UIProcess/WebPageProxy.cpp        2015-07-08 23:46:16 UTC (rev 186538)
</span><span class="lines">@@ -5809,6 +5809,11 @@
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> #if ENABLE(MEDIA_SESSION)
</span><ins>+void WebPageProxy::hasMediaSessionWithActiveMediaElementsDidChange(bool state)
+{
+    m_hasMediaSessionWithActiveMediaElements = state;
+}
+
</ins><span class="cx"> void WebPageProxy::mediaSessionMetadataDidChange(const WebCore::MediaSessionMetadata&amp; metadata)
</span><span class="cx"> {
</span><span class="cx">     Ref&lt;WebMediaSessionMetadata&gt; webMetadata = WebMediaSessionMetadata::create(metadata);
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessWebPageProxyh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/WebPageProxy.h (186537 => 186538)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/WebPageProxy.h        2015-07-08 23:46:11 UTC (rev 186537)
+++ trunk/Source/WebKit2/UIProcess/WebPageProxy.h        2015-07-08 23:46:16 UTC (rev 186538)
</span><span class="lines">@@ -940,6 +940,7 @@
</span><span class="cx">     bool mayStartMediaWhenInWindow() const { return m_mayStartMediaWhenInWindow; }
</span><span class="cx">         
</span><span class="cx"> #if ENABLE(MEDIA_SESSION)
</span><ins>+    bool hasMediaSessionWithActiveMediaElements() const { return m_hasMediaSessionWithActiveMediaElements; }
</ins><span class="cx">     void handleMediaEvent(WebCore::MediaEventType);
</span><span class="cx"> #endif
</span><span class="cx"> 
</span><span class="lines">@@ -1025,6 +1026,7 @@
</span><span class="cx">     void isPlayingMediaDidChange(WebCore::MediaProducer::MediaStateFlags);
</span><span class="cx"> 
</span><span class="cx"> #if ENABLE(MEDIA_SESSION)
</span><ins>+    void hasMediaSessionWithActiveMediaElementsDidChange(bool);
</ins><span class="cx">     void mediaSessionMetadataDidChange(const WebCore::MediaSessionMetadata&amp;);
</span><span class="cx"> #endif
</span><span class="cx"> 
</span><span class="lines">@@ -1762,6 +1764,10 @@
</span><span class="cx"> 
</span><span class="cx">     WebCore::MediaProducer::MediaStateFlags m_mediaState { WebCore::MediaProducer::IsNotPlaying };
</span><span class="cx"> 
</span><ins>+#if ENABLE(MEDIA_SESSION)
+    bool m_hasMediaSessionWithActiveMediaElements { false };
+#endif
+
</ins><span class="cx"> #if ENABLE(WIRELESS_PLAYBACK_TARGET) &amp;&amp; !PLATFORM(IOS)
</span><span class="cx">     bool m_requiresTargetMonitoring { false };
</span><span class="cx"> #endif
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessWebPageProxymessagesin"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/WebPageProxy.messages.in (186537 => 186538)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/WebPageProxy.messages.in        2015-07-08 23:46:11 UTC (rev 186537)
+++ trunk/Source/WebKit2/UIProcess/WebPageProxy.messages.in        2015-07-08 23:46:16 UTC (rev 186538)
</span><span class="lines">@@ -425,6 +425,7 @@
</span><span class="cx">     IsPlayingMediaDidChange(unsigned state)
</span><span class="cx"> 
</span><span class="cx"> #if ENABLE(MEDIA_SESSION)
</span><ins>+    HasMediaSessionWithActiveMediaElementsDidChange(bool state)
</ins><span class="cx">     MediaSessionMetadataDidChange(WebCore::MediaSessionMetadata metadata);
</span><span class="cx"> #endif
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebKit2WebProcessWebCoreSupportWebChromeClientcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/WebProcess/WebCoreSupport/WebChromeClient.cpp (186537 => 186538)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/WebProcess/WebCoreSupport/WebChromeClient.cpp        2015-07-08 23:46:11 UTC (rev 186537)
+++ trunk/Source/WebKit2/WebProcess/WebCoreSupport/WebChromeClient.cpp        2015-07-08 23:46:16 UTC (rev 186538)
</span><span class="lines">@@ -1062,6 +1062,11 @@
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> #if ENABLE(MEDIA_SESSION)
</span><ins>+void WebChromeClient::hasMediaSessionWithActiveMediaElementsDidChange(bool state)
+{
+    m_page-&gt;send(Messages::WebPageProxy::HasMediaSessionWithActiveMediaElementsDidChange(state));
+}
+
</ins><span class="cx"> void WebChromeClient::mediaSessionMetadataDidChange(const WebCore::MediaSessionMetadata&amp; metadata)
</span><span class="cx"> {
</span><span class="cx">     m_page-&gt;send(Messages::WebPageProxy::MediaSessionMetadataDidChange(metadata));
</span></span></pre></div>
<a id="trunkSourceWebKit2WebProcessWebCoreSupportWebChromeClienth"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/WebProcess/WebCoreSupport/WebChromeClient.h (186537 => 186538)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/WebProcess/WebCoreSupport/WebChromeClient.h        2015-07-08 23:46:11 UTC (rev 186537)
+++ trunk/Source/WebKit2/WebProcess/WebCoreSupport/WebChromeClient.h        2015-07-08 23:46:16 UTC (rev 186538)
</span><span class="lines">@@ -295,6 +295,7 @@
</span><span class="cx">     virtual void setPageActivityState(WebCore::PageActivityState::Flags) override;
</span><span class="cx"> 
</span><span class="cx"> #if ENABLE(MEDIA_SESSION)
</span><ins>+    virtual void hasMediaSessionWithActiveMediaElementsDidChange(bool) override;
</ins><span class="cx">     virtual void mediaSessionMetadataDidChange(const WebCore::MediaSessionMetadata&amp;) override;
</span><span class="cx"> #endif
</span><span class="cx"> 
</span></span></pre>
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