Attachment 370807 Details for Bug 198307 – Patch

[patch] Patch

bug-198307-20190528165717.patch (text/plain), 33.07 KB, created by youenn fablet on 2019-05-28 16:57:17 PDT

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Creator: youenn fablet

Created: 2019-05-28 16:57:17 PDT

Size: 33.07 KB

patch

obsolete

>Subversion Revision: 245745
>diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog
>index c9098ae487d9e687a7fdc318e166070b27ebdd67..1d9955f6643d3eb07e4cb7ad13857e9606054b6f 100644
>--- a/Source/WebCore/ChangeLog
>+++ b/Source/WebCore/ChangeLog
>@@ -1,3 +1,45 @@
>+2019-05-28  Youenn Fablet  <youenn@apple.com>
>+
>+        Add an option to mute audio capture automatically when page is not visible
>+        https://bugs.webkit.org/show_bug.cgi?id=198307
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Reuse video capture mechanism for audio capture.
>+        In case document gets in the background, interrupt the audio track if the audio factory allows it.
>+        CoreAudioCaptureSourceIOS allows to interrupt the audio capture if the app has not the right background mode.
>+        It also allows interrupting the audio capture based on a runtime flag.
>+
>+        Test: platform/ios/mediastream/audio-muted-in-background-tab.html
>+
>+        * dom/Document.cpp:
>+        (WebCore::Document::notifyMediaCaptureOfVisibilityChanged):
>+        * page/RuntimeEnabledFeatures.h:
>+        (WebCore::RuntimeEnabledFeatures::interruptAudioOnPageVisibilityChangeEnabled const):
>+        (WebCore::RuntimeEnabledFeatures::setInterruptAudioOnPageVisibilityChangeEnabled):
>+        * platform/mediastream/RealtimeMediaSourceCenter.cpp:
>+        (WebCore::RealtimeMediaSourceCenter::RealtimeMediaSourceCenter):
>+        (WebCore::RealtimeMediaSourceCenter::initializeShouldInterruptAudioOnPageVisibilityChange):
>+        (WebCore::RealtimeMediaSourceCenter::setCapturePageState):
>+        (WebCore::RealtimeMediaSourceCenter::visibilityDidChange):
>+        * platform/mediastream/RealtimeMediaSourceCenter.h:
>+        (WebCore::RealtimeMediaSourceCenter::setShouldInterruptAudioOnPageVisibilityChange):
>+        * platform/mediastream/RealtimeMediaSourceFactory.h:
>+        (WebCore::AudioCaptureFactory::setAudioCapturePageState):
>+        (WebCore::VideoCaptureFactory::setVideoCapturePageState):
>+        * platform/mediastream/ios/CoreAudioCaptureSourceIOS.h:
>+        * platform/mediastream/ios/CoreAudioCaptureSourceIOS.mm:
>+        (WebCore::CoreAudioCaptureSourceFactory::setAudioCapturePageState):
>+        (WebCore::CoreAudioCaptureSourceFactoryIOS::shouldInterruptAudioOnPageVisibilityChange):
>+        * platform/mediastream/mac/CoreAudioCaptureSource.h:
>+        * platform/mediastream/mac/RealtimeMediaSourceCenterMac.cpp:
>+        (WebCore::RealtimeMediaSourceCenter::initializeShouldInterruptAudioOnPageVisibilityChange):
>+        * testing/Internals.cpp:
>+        (WebCore::Internals::resetToConsistentState):
>+        (WebCore::Internals::setShouldInterruptAudioOnPageVisibilityChange):
>+        * testing/Internals.h:
>+        * testing/Internals.idl:
>+
> 2019-05-24  Saam barati  <sbarati@apple.com>
> 
>         [WHLSL] ReadModifyWriteExpression always has a result and new value expression
>diff --git a/Source/WebKit/ChangeLog b/Source/WebKit/ChangeLog
>index 76cf24000ad7630ec8edd27d4ded69cea75fc34e..2a60a79246b3a8d6d0c9a41c841ea019c3b9a356 100644
>--- a/Source/WebKit/ChangeLog
>+++ b/Source/WebKit/ChangeLog
>@@ -1,3 +1,23 @@
>+2019-05-28  Youenn Fablet  <youenn@apple.com>
>+
>+        Add an option to mute audio capture automatically when page is not visible
>+        https://bugs.webkit.org/show_bug.cgi?id=198307
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Add API to set the new runtime flag.
>+        Make source proxy factories implement this automatic muting.
>+
>+        * Shared/WebPreferences.yaml:
>+        * UIProcess/API/Cocoa/WKPreferences.mm:
>+        (-[WKPreferences _interruptAudioOnPageVisibilityChangeEnabled]):
>+        (-[WKPreferences _setInterruptAudioOnPageVisibilityChangeEnabled:]):
>+        * UIProcess/API/Cocoa/WKPreferencesPrivate.h:
>+        * WebProcess/cocoa/UserMediaCaptureManager.cpp:
>+        (WebKit::UserMediaCaptureManager::setAudioCapturePageState):
>+        (WebKit::UserMediaCaptureManager::setVideoCapturePageState):
>+        * WebProcess/cocoa/UserMediaCaptureManager.h:
>+
> 2019-05-23  Ross Kirsling  <ross.kirsling@sony.com>
> 
>         Socket-based RWI should be able to inspect a JSContext
>diff --git a/Source/ThirdParty/libwebrtc/Configurations/libwebrtc.iOSsim.exp b/Source/ThirdParty/libwebrtc/Configurations/libwebrtc.iOSsim.exp
>index 6c366cf73720a8355f4792de64ba1aa1a0275504..0c970ad03965d570bf9af66fc2802fcfc6a392e6 100644
>--- a/Source/ThirdParty/libwebrtc/Configurations/libwebrtc.iOSsim.exp
>+++ b/Source/ThirdParty/libwebrtc/Configurations/libwebrtc.iOSsim.exp
>@@ -248,3 +248,4 @@ __ZN6webrtc16RtpFecParametersD1Ev
> __ZN6webrtc16RtpRtxParametersC1ERKS0_
> __ZN6webrtc16RtpRtxParametersD1Ev
> __ZN3rtc10LogMessage12SetLogOutputENS_15LoggingSeverityEPFvS1_PKcE
>+__ZNK3rtc13SocketAddress8ToStringEv
>diff --git a/Source/WebCore/SourcesCocoa.txt b/Source/WebCore/SourcesCocoa.txt
>index c081198a172ab2094caa64c2d1a63a94873a844f..bd29e5b48cbd60a92435f3cab1be1b7c8fafbb81 100644
>--- a/Source/WebCore/SourcesCocoa.txt
>+++ b/Source/WebCore/SourcesCocoa.txt
>@@ -542,6 +542,7 @@ platform/mediastream/mac/DisplayCaptureSourceCocoa.cpp
> platform/mediastream/mac/RealtimeIncomingAudioSourceCocoa.cpp
> platform/mediastream/mac/RealtimeIncomingVideoSourceCocoa.mm
> platform/mediastream/mac/RealtimeMediaSourceCenterMac.cpp
>+platform/mediastream/mac/RealtimeMediaSourceCenterMac.mm
> platform/mediastream/mac/RealtimeOutgoingAudioSourceCocoa.cpp
> platform/mediastream/mac/RealtimeOutgoingVideoSourceCocoa.cpp
> platform/mediastream/mac/ScreenDisplayCaptureSourceMac.mm
>diff --git a/Source/WebCore/WebCore.xcodeproj/project.pbxproj b/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>index e6a1f5f1d719b4af63fd9dda7e1afd745a6de907..f0cd6a41c77b09ef0bd6705022d13c9b2075d41e 100644
>--- a/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>+++ b/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>@@ -7266,6 +7266,7 @@
> 		4162A44F101145AE00DFF3ED /* DedicatedWorkerGlobalScope.idl */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = DedicatedWorkerGlobalScope.idl; sourceTree = "<group>"; };
> 		4162A4551011464700DFF3ED /* JSDedicatedWorkerGlobalScope.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = JSDedicatedWorkerGlobalScope.cpp; sourceTree = "<group>"; };
> 		4162A4561011464700DFF3ED /* JSDedicatedWorkerGlobalScope.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = JSDedicatedWorkerGlobalScope.h; sourceTree = "<group>"; };
>+		416CE4A4229DF12E00A8A686 /* RealtimeMediaSourceCenterMac.mm */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.objcpp; path = RealtimeMediaSourceCenterMac.mm; sourceTree = "<group>"; };
> 		416D759F20C6441300D02D2C /* NetworkLoadInformation.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = NetworkLoadInformation.h; sourceTree = "<group>"; };
> 		416E0B37209BC3C2004A95D9 /* FetchIdentifier.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = FetchIdentifier.h; sourceTree = "<group>"; };
> 		416E29A5102FA962007FC14E /* WorkerReportingProxy.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = WorkerReportingProxy.h; sourceTree = "<group>"; };
>@@ -15861,6 +15862,7 @@
> 				5CDD833A1E4324BB00621E83 /* RealtimeIncomingVideoSourceCocoa.h */,
> 				5CDD83391E4324BB00621E83 /* RealtimeIncomingVideoSourceCocoa.mm */,
> 				4A0FFAA31AAF5EF60062803B /* RealtimeMediaSourceCenterMac.cpp */,
>+				416CE4A4229DF12E00A8A686 /* RealtimeMediaSourceCenterMac.mm */,
> 				41103AA71E39790A00769F14 /* RealtimeOutgoingAudioSourceCocoa.cpp */,
> 				41103AA81E39790A00769F14 /* RealtimeOutgoingAudioSourceCocoa.h */,
> 				5CDD833B1E4324BB00621B83 /* RealtimeOutgoingVideoSourceCocoa.cpp */,
>diff --git a/Source/WebCore/dom/Document.cpp b/Source/WebCore/dom/Document.cpp
>index e70a9f7fe551ab5b554646fc3677d19e921e2ece..c8e0b6076a48567dc60f37008bf5fa80111fffc1 100644
>--- a/Source/WebCore/dom/Document.cpp
>+++ b/Source/WebCore/dom/Document.cpp
>@@ -7629,7 +7629,7 @@ void Document::notifyMediaCaptureOfVisibilityChanged()
>     if (!page())
>         return;
> 
>-    RealtimeMediaSourceCenter::singleton().setVideoCapturePageState(hidden(), page()->isMediaCaptureMuted());
>+    RealtimeMediaSourceCenter::singleton().setCapturePageState(hidden(), page()->isMediaCaptureMuted());
> #endif
> }
> 
>diff --git a/Source/WebCore/page/RuntimeEnabledFeatures.h b/Source/WebCore/page/RuntimeEnabledFeatures.h
>index 3b49857f289a925add58ea7345b8cf1ed18f15b7..be1623084278210ae69e3642a0db715110466b4d 100644
>--- a/Source/WebCore/page/RuntimeEnabledFeatures.h
>+++ b/Source/WebCore/page/RuntimeEnabledFeatures.h
>@@ -355,6 +355,9 @@ public:
>     bool pageAtRuleSupportEnabled() const { return m_pageAtRuleSupportEnabled; }
>     void setPageAtRuleSupportEnabled(bool isEnabled) { m_pageAtRuleSupportEnabled = isEnabled; }
> 
>+    bool interruptAudioOnPageVisibilityChangeEnabled() const { return m_interruptAudioOnPageVisibilityChangeEnabled; }
>+    void setInterruptAudioOnPageVisibilityChangeEnabled(bool enabled) { m_interruptAudioOnPageVisibilityChangeEnabled = enabled; }
>+
>     WEBCORE_EXPORT static RuntimeEnabledFeatures& sharedFeatures();
> 
> private:
>@@ -537,6 +540,7 @@ private:
>     bool m_isITPFirstPartyWebsiteDataRemovalEnabled { false };
> 
>     bool m_referrerPolicyAttributeEnabled { false };
>+    bool m_interruptAudioOnPageVisibilityChangeEnabled { false };
> 
>     friend class WTF::NeverDestroyed<RuntimeEnabledFeatures>;
> };
>diff --git a/Source/WebCore/platform/mediastream/RealtimeMediaSourceCenter.cpp b/Source/WebCore/platform/mediastream/RealtimeMediaSourceCenter.cpp
>index 3706fad7ffc03f7ecce6ef38c41b7ae3d2d35338..404a196b6b4aa4c3f6dc6944e7df2e712b9a5436 100644
>--- a/Source/WebCore/platform/mediastream/RealtimeMediaSourceCenter.cpp
>+++ b/Source/WebCore/platform/mediastream/RealtimeMediaSourceCenter.cpp
>@@ -38,6 +38,7 @@
> #include "CaptureDeviceManager.h"
> #include "Logging.h"
> #include "MediaStreamPrivate.h"
>+#include "RuntimeEnabledFeatures.h"
> #include <wtf/SHA1.h>
> 
> namespace WebCore {
>@@ -50,6 +51,8 @@ RealtimeMediaSourceCenter& RealtimeMediaSourceCenter::singleton()
> }
> 
> RealtimeMediaSourceCenter::RealtimeMediaSourceCenter()
>+    : m_shouldInterruptAudioOnPageVisibilityChange { RuntimeEnabledFeatures::sharedFeatures().interruptAudioOnPageVisibilityChangeEnabled() }
>+
> {
>     m_supportedConstraints.setSupportsWidth(true);
>     m_supportedConstraints.setSupportsHeight(true);
>@@ -262,8 +265,11 @@ void RealtimeMediaSourceCenter::validateRequestConstraints(ValidConstraintsHandl
>     validHandler(WTFMove(audioDevices), WTFMove(videoDevices), WTFMove(deviceIdentifierHashSalt));
> }
> 
>-void RealtimeMediaSourceCenter::setVideoCapturePageState(bool interrupted, bool pageMuted)
>+void RealtimeMediaSourceCenter::setCapturePageState(bool interrupted, bool pageMuted)
> {
>+    fprintf(stderr, "RealtimeMediaSourceCenter::setCapturePageState %d\n", m_shouldInterruptAudioOnPageVisibilityChange);
>+    if (m_shouldInterruptAudioOnPageVisibilityChange)
>+        audioCaptureFactory().setAudioCapturePageState(interrupted, pageMuted);
>     videoCaptureFactory().setVideoCapturePageState(interrupted, pageMuted);
> }
> 
>@@ -317,6 +323,13 @@ DisplayCaptureFactory& RealtimeMediaSourceCenter::displayCaptureFactory()
>     return m_displayCaptureFactoryOverride ? *m_displayCaptureFactoryOverride : defaultDisplayCaptureFactory();
> }
> 
>+#if !PLATFORM(COCOA)
>+bool RealtimeMediaSourceCenter::shouldInterruptAudioOnPageVisibilityChange()
>+{
>+    return false;
>+}
>+#endif
>+
> } // namespace WebCore
> 
> #endif // ENABLE(MEDIA_STREAM)
>diff --git a/Source/WebCore/platform/mediastream/RealtimeMediaSourceCenter.h b/Source/WebCore/platform/mediastream/RealtimeMediaSourceCenter.h
>index 3bb2594bb091d3637761db9a4dd1233382169827..254e57244e468837df6d55a299e3a440a2d328e8 100644
>--- a/Source/WebCore/platform/mediastream/RealtimeMediaSourceCenter.h
>+++ b/Source/WebCore/platform/mediastream/RealtimeMediaSourceCenter.h
>@@ -86,10 +86,15 @@ public:
> 
>     WEBCORE_EXPORT void setDevicesChangedObserver(std::function<void()>&&);
> 
>-    void setVideoCapturePageState(bool, bool);
>+    void setCapturePageState(bool interrupted, bool pageMuted);
> 
>     void captureDevicesChanged();
> 
>+    WEBCORE_EXPORT static bool shouldInterruptAudioOnPageVisibilityChange();
>+    
>+    // For testing only
>+    void setShouldInterruptAudioOnPageVisibilityChange(bool shouldInterrupt) { m_shouldInterruptAudioOnPageVisibilityChange = shouldInterrupt; }
>+
> private:
>     RealtimeMediaSourceCenter();
>     friend class NeverDestroyed<RealtimeMediaSourceCenter>;
>@@ -113,6 +118,8 @@ private:
>     AudioCaptureFactory* m_audioCaptureFactoryOverride { nullptr };
>     VideoCaptureFactory* m_videoCaptureFactoryOverride { nullptr };
>     DisplayCaptureFactory* m_displayCaptureFactoryOverride { nullptr };
>+
>+    bool m_shouldInterruptAudioOnPageVisibilityChange { false };
> };
> 
> } // namespace WebCore
>diff --git a/Source/WebCore/platform/mediastream/RealtimeMediaSourceFactory.h b/Source/WebCore/platform/mediastream/RealtimeMediaSourceFactory.h
>index 4897c64e9372c2a6bc81938554c982561e20f78c..a3d52f0fcb773634cbf453ff94acea5a1a2fc562 100644
>--- a/Source/WebCore/platform/mediastream/RealtimeMediaSourceFactory.h
>+++ b/Source/WebCore/platform/mediastream/RealtimeMediaSourceFactory.h
>@@ -57,6 +57,11 @@ public:
>     virtual ~AudioCaptureFactory() = default;
>     virtual CaptureSourceOrError createAudioCaptureSource(const CaptureDevice&, String&&, const MediaConstraints*) = 0;
>     virtual CaptureDeviceManager& audioCaptureDeviceManager() = 0;
>+    virtual void setAudioCapturePageState(bool interrupted, bool pageMuted)
>+    {
>+        UNUSED_PARAM(interrupted);
>+        UNUSED_PARAM(pageMuted);
>+    }
> 
> protected:
>     AudioCaptureFactory() = default;
>@@ -71,7 +76,11 @@ public:
>     virtual ~VideoCaptureFactory() = default;
>     virtual CaptureSourceOrError createVideoCaptureSource(const CaptureDevice&, String&&, const MediaConstraints*) = 0;
>     virtual CaptureDeviceManager& videoCaptureDeviceManager() = 0;
>-    virtual void setVideoCapturePageState(bool, bool) { }
>+    virtual void setVideoCapturePageState(bool interrupted, bool pageMuted)
>+    {
>+        UNUSED_PARAM(interrupted);
>+        UNUSED_PARAM(pageMuted);
>+    }
> 
> protected:
>     VideoCaptureFactory() = default;
>@@ -82,7 +91,6 @@ public:
>     virtual ~DisplayCaptureFactory() = default;
>     virtual CaptureSourceOrError createDisplayCaptureSource(const CaptureDevice&, const MediaConstraints*) = 0;
>     virtual CaptureDeviceManager& displayCaptureDeviceManager() = 0;
>-    virtual void setDisplayCapturePageState(bool , bool) { }
> 
> protected:
>     DisplayCaptureFactory() = default;
>diff --git a/Source/WebCore/platform/mediastream/ios/CoreAudioCaptureSourceIOS.mm b/Source/WebCore/platform/mediastream/ios/CoreAudioCaptureSourceIOS.mm
>index 6fb3dad39c2d9e978dc521b7bb83f699a93253ff..4c8264897aada8d690c31f80756857fee9c97bbd 100644
>--- a/Source/WebCore/platform/mediastream/ios/CoreAudioCaptureSourceIOS.mm
>+++ b/Source/WebCore/platform/mediastream/ios/CoreAudioCaptureSourceIOS.mm
>@@ -126,6 +126,12 @@ CoreAudioCaptureSourceFactory& CoreAudioCaptureSourceFactory::singleton()
>     return factory.get();
> }
> 
>+void CoreAudioCaptureSourceFactory::setAudioCapturePageState(bool interrupted, bool pageMuted)
>+{
>+    if (auto* activeSource = this->activeSource())
>+        activeSource->setInterrupted(interrupted, pageMuted);
>+}
>+
> }
> 
> #endif // ENABLE(MEDIA_STREAM) && PLATFORM(IOS_FAMILY)
>diff --git a/Source/WebCore/platform/mediastream/mac/CoreAudioCaptureSource.h b/Source/WebCore/platform/mediastream/mac/CoreAudioCaptureSource.h
>index 1ab816ca077dd8fe56a97b46c4f3107df2ebae89..adbefe7c025a0fe8138895b018f2269c1a64ac0a 100644
>--- a/Source/WebCore/platform/mediastream/mac/CoreAudioCaptureSource.h
>+++ b/Source/WebCore/platform/mediastream/mac/CoreAudioCaptureSource.h
>@@ -142,6 +142,9 @@ private:
>     }
> 
>     CaptureDeviceManager& audioCaptureDeviceManager() final;
>+#if PLATFORM(IOS_FAMILY)
>+    void setAudioCapturePageState(bool interrupted, bool pageMuted) final;
>+#endif
> };
> 
> } // namespace WebCore
>diff --git a/Source/WebCore/platform/mediastream/mac/RealtimeMediaSourceCenterMac.cpp b/Source/WebCore/platform/mediastream/mac/RealtimeMediaSourceCenterMac.cpp
>index a6a0dab5c0b55d1251937ab0ce46db1dc829f9f9..a328cd3a83ecbfca049e54abf70de9d78faf331b 100644
>--- a/Source/WebCore/platform/mediastream/mac/RealtimeMediaSourceCenterMac.cpp
>+++ b/Source/WebCore/platform/mediastream/mac/RealtimeMediaSourceCenterMac.cpp
>@@ -38,6 +38,7 @@
> #include "DisplayCaptureManagerCocoa.h"
> #include "Logging.h"
> #include "MediaStreamPrivate.h"
>+#include "RuntimeEnabledFeatures.h"
> #include "ScreenDisplayCaptureSourceMac.h"
> #include "WindowDisplayCaptureSourceMac.h"
> #include <wtf/MainThread.h>
>diff --git a/Source/WebCore/platform/mediastream/mac/RealtimeMediaSourceCenterMac.mm b/Source/WebCore/platform/mediastream/mac/RealtimeMediaSourceCenterMac.mm
>new file mode 100644
>index 0000000000000000000000000000000000000000..11406436de1a22749ccfc1cfe4bf8a540ec57c49
>--- /dev/null
>+++ b/Source/WebCore/platform/mediastream/mac/RealtimeMediaSourceCenterMac.mm
>@@ -0,0 +1,59 @@
>+/*
>+ * Copyright (C) 2013-2016 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.
>+ * 3. Neither the name of Ericsson nor the names of its contributors
>+ *    may be used to endorse or promote products derived from this
>+ *    software without specific prior written permission.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
>+ * OWNER OR 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.
>+ */
>+
>+#include "config.h"
>+#include "RealtimeMediaSourceCenter.h"
>+
>+#if ENABLE(MEDIA_STREAM)
>+
>+namespace WebCore {
>+
>+bool RealtimeMediaSourceCenter::shouldInterruptAudioOnPageVisibilityChange()
>+{
>+#if PLATFORM(IOS)
>+    NSArray *modes = [[NSBundle mainBundle] objectForInfoDictionaryKey:@"UIBackgroundModes"];
>+    if (!modes)
>+        return true;
>+    
>+    int modesCount = [modes count];
>+    for (int i = 0; i < modesCount; i++) {
>+        if ([[modes objectAtIndex:i] isEqual: @"audio"])
>+            return false;
>+    }
>+    return true;
>+#else
>+    return false
>+#endif
>+}
>+
>+
>+} // namespace WebCore
>+
>+#endif // ENABLE(MEDIA_STREAM)
>diff --git a/Source/WebCore/platform/mock/MockRealtimeMediaSourceCenter.cpp b/Source/WebCore/platform/mock/MockRealtimeMediaSourceCenter.cpp
>index 69fad4b415e03fe2fd07af76d475c18e0387ab6d..6d83b5095b5054c43cf9e0fd246e1026d6eae54b 100644
>--- a/Source/WebCore/platform/mock/MockRealtimeMediaSourceCenter.cpp
>+++ b/Source/WebCore/platform/mock/MockRealtimeMediaSourceCenter.cpp
>@@ -96,7 +96,7 @@ public:
> 
> private:
> #if PLATFORM(IOS_FAMILY)
>-    void setVideoCapturePageState(bool interrupted, bool pageMuted)
>+    void setVideoCapturePageState(bool interrupted, bool pageMuted) final
>     {
>         if (activeSource())
>             activeSource()->setInterrupted(interrupted, pageMuted);
>@@ -139,6 +139,13 @@ public:
>         return MockRealtimeAudioSource::create(String { device.persistentId() }, String { device.label() }, WTFMove(hashSalt), constraints);
>     }
> private:
>+#if PLATFORM(IOS_FAMILY)
>+    void setAudioCapturePageState(bool interrupted, bool pageMuted) final
>+    {
>+        if (activeSource())
>+            activeSource()->setInterrupted(interrupted, pageMuted);
>+    }
>+#endif
>     CaptureDeviceManager& audioCaptureDeviceManager() final { return MockRealtimeMediaSourceCenter::singleton().audioCaptureDeviceManager(); }
> };
> 
>diff --git a/Source/WebCore/testing/Internals.cpp b/Source/WebCore/testing/Internals.cpp
>index 510ef0d31b6ea420e4ab09bfe81f415a318f2efe..0759b1fa2187d92b761910a65272925f2af4ca57 100644
>--- a/Source/WebCore/testing/Internals.cpp
>+++ b/Source/WebCore/testing/Internals.cpp
>@@ -531,6 +531,10 @@ void Internals::resetToConsistentState(Page& page)
>     page.setFullscreenControlsHidden(false);
> 
>     MediaEngineConfigurationFactory::disableMock();
>+
>+#if ENABLE(MEDIA_STREAM)
>+    RealtimeMediaSourceCenter::singleton().setShouldInterruptAudioOnPageVisibilityChange(false);
>+#endif
> }
> 
> Internals::Internals(Document& document)
>@@ -1501,6 +1505,10 @@ void Internals::applyRotationForOutgoingVideoSources(RTCPeerConnection& connecti
> #endif
> 
> #if ENABLE(MEDIA_STREAM)
>+void Internals::setShouldInterruptAudioOnPageVisibilityChange(bool shouldInterrupt)
>+{
>+    RealtimeMediaSourceCenter::singleton().setShouldInterruptAudioOnPageVisibilityChange(shouldInterrupt);
>+}
> 
> void Internals::setMockMediaCaptureDevicesEnabled(bool enabled)
> {
>diff --git a/Source/WebCore/testing/Internals.h b/Source/WebCore/testing/Internals.h
>index 3ac66f72598030c089f71202b4481308379f7946..895a0eb2912ecbb255374f700b4d74bff0e2fe01 100644
>--- a/Source/WebCore/testing/Internals.h
>+++ b/Source/WebCore/testing/Internals.h
>@@ -516,6 +516,7 @@ public:
> #endif
> 
> #if ENABLE(MEDIA_STREAM)
>+    void setShouldInterruptAudioOnPageVisibilityChange(bool);
>     void setMockMediaCaptureDevicesEnabled(bool);
>     void setMediaCaptureRequiresSecureConnection(bool);
>     void setCustomPrivateRecorderCreator();
>diff --git a/Source/WebCore/testing/Internals.idl b/Source/WebCore/testing/Internals.idl
>index ca2bc545b3e04a7868c3d48940ae077249d147a7..114e445bc47a59eb6f317ca77a31c4061e679d60 100644
>--- a/Source/WebCore/testing/Internals.idl
>+++ b/Source/WebCore/testing/Internals.idl
>@@ -672,6 +672,7 @@ enum CompositingPolicy {
>     [Conditional=WEB_RTC] void setH264HardwareEncoderAllowed(boolean allowed);
>     [Conditional=WEB_RTC] void applyRotationForOutgoingVideoSources(RTCPeerConnection connection);
> 
>+    [Conditional=MEDIA_STREAM] void setShouldInterruptAudioOnPageVisibilityChange(boolean shouldInterrupt);
>     [Conditional=MEDIA_STREAM] void setCameraMediaStreamTrackOrientation(MediaStreamTrack track, short orientation);
>     [Conditional=MEDIA_STREAM] void observeMediaStreamTrack(MediaStreamTrack track);
>     [Conditional=MEDIA_STREAM] Promise<ImageData> grabNextMediaStreamTrackFrame();
>diff --git a/Source/WebKit/Scripts/PreferencesTemplates/WebPreferencesStoreDefaultsMap.cpp.erb b/Source/WebKit/Scripts/PreferencesTemplates/WebPreferencesStoreDefaultsMap.cpp.erb
>index 7825e122844e87f3589cca311dde77fc2b8f1598..17bae3753712efc5d27685bfeda5ad8f994cb508 100644
>--- a/Source/WebKit/Scripts/PreferencesTemplates/WebPreferencesStoreDefaultsMap.cpp.erb
>+++ b/Source/WebKit/Scripts/PreferencesTemplates/WebPreferencesStoreDefaultsMap.cpp.erb
>@@ -36,6 +36,7 @@
> // FIXME: These should added via options in WebPreferences.yaml, rather than hardcoded.
> #include <WebCore/DeprecatedGlobalSettings.h>
> #include <WebCore/LibWebRTCProvider.h>
>+#include <WebCore/RealtimeMediaSourceCenter.h>
> #include <WebCore/SecurityOrigin.h>
> #include <WebCore/Settings.h>
> #include <WebCore/TextEncodingRegistry.h>
>diff --git a/Source/WebKit/Shared/WebPreferences.yaml b/Source/WebKit/Shared/WebPreferences.yaml
>index e59efb801cb31ae07dee12253c15715489d8df56..976c4a6d04b727264b122c944ca92cc9bbf5b5ea 100644
>--- a/Source/WebKit/Shared/WebPreferences.yaml
>+++ b/Source/WebKit/Shared/WebPreferences.yaml
>@@ -545,6 +545,11 @@ PeerConnectionEnabled:
>   webcoreBinding: RuntimeEnabledFeatures
>   condition: ENABLE(WEB_RTC)
> 
>+InterruptAudioOnPageVisibilityChangeEnabled:
>+  type: bool
>+  defaultValue: WebCore::RealtimeMediaSourceCenter::shouldInterruptAudioOnPageVisibilityChange()
>+  webcoreBinding: RuntimeEnabledFeatures
>+
> WebRTCUnifiedPlanEnabled:
>   type: bool
>   defaultValue: true
>diff --git a/Source/WebKit/UIProcess/API/Cocoa/WKPreferences.mm b/Source/WebKit/UIProcess/API/Cocoa/WKPreferences.mm
>index 65384ec1d046e403e0693821dd8e83b1960404f8..df0b0020dbefd0f33f6d7760b6d472630bff4cd8 100644
>--- a/Source/WebKit/UIProcess/API/Cocoa/WKPreferences.mm
>+++ b/Source/WebKit/UIProcess/API/Cocoa/WKPreferences.mm
>@@ -649,6 +649,16 @@ static _WKStorageBlockingPolicy toAPI(WebCore::SecurityOrigin::StorageBlockingPo
>     _preferences->setInactiveMediaCaptureSteamRepromptIntervalInMinutes(interval);
> }
> 
>+- (BOOL)_interruptAudioOnPageVisibilityChangeEnabled
>+{
>+    return _preferences->interruptAudioOnPageVisibilityChangeEnabled();
>+}
>+
>+- (void)_setInterruptAudioOnPageVisibilityChangeEnabled:(BOOL)enabled
>+{
>+    _preferences->setInterruptAudioOnPageVisibilityChangeEnabled(enabled);
>+}
>+
> - (BOOL)_enumeratingAllNetworkInterfacesEnabled
> {
>     return _preferences->enumeratingAllNetworkInterfacesEnabled();
>diff --git a/Source/WebKit/UIProcess/API/Cocoa/WKPreferencesPrivate.h b/Source/WebKit/UIProcess/API/Cocoa/WKPreferencesPrivate.h
>index 077a3932c7a1a4c44d7528968ccb2d16e8b592fb..ef181936cf137e6e18647148f9172eb9292c9e86 100644
>--- a/Source/WebKit/UIProcess/API/Cocoa/WKPreferencesPrivate.h
>+++ b/Source/WebKit/UIProcess/API/Cocoa/WKPreferencesPrivate.h
>@@ -120,6 +120,7 @@ typedef NS_ENUM(NSInteger, _WKEditableLinkBehavior) {
> @property (nonatomic, setter=_setICECandidateFilteringEnabled:) BOOL _iceCandidateFilteringEnabled WK_API_AVAILABLE(macos(10.13.4), ios(11.3));
> @property (nonatomic, setter=_setWebRTCLegacyAPIEnabled:) BOOL _webRTCLegacyAPIEnabled WK_API_AVAILABLE(macos(10.13), ios(11.0));
> @property (nonatomic, setter=_setInactiveMediaCaptureSteamRepromptIntervalInMinutes:) double _inactiveMediaCaptureSteamRepromptIntervalInMinutes WK_API_AVAILABLE(macos(10.13.4), ios(11.3));
>+@property (nonatomic, setter=_setInterruptAudioOnPageVisibilityChangeEnabled:) BOOL _interruptAudioOnPageVisibilityChangeEnabled WK_API_AVAILABLE(macos(WK_MAC_TBA), ios(WK_IOS_TBA));
> 
> @property (nonatomic, setter=_setJavaScriptCanAccessClipboard:) BOOL _javaScriptCanAccessClipboard WK_API_AVAILABLE(macos(10.13), ios(11.0));
> @property (nonatomic, setter=_setDOMPasteAllowed:) BOOL _domPasteAllowed WK_API_AVAILABLE(macos(10.13), ios(11.0));
>diff --git a/Source/WebKit/WebProcess/cocoa/UserMediaCaptureManager.cpp b/Source/WebKit/WebProcess/cocoa/UserMediaCaptureManager.cpp
>index b465ad25239e6b278d3fb407747d89b872998751..86a8bc5df083db5a9aefa6676f54566d1ffd2569 100644
>--- a/Source/WebKit/WebProcess/cocoa/UserMediaCaptureManager.cpp
>+++ b/Source/WebKit/WebProcess/cocoa/UserMediaCaptureManager.cpp
>@@ -363,6 +363,20 @@ void UserMediaCaptureManager::applyConstraintsFailed(uint64_t id, String&& faile
>     source.applyConstraintsFailed(WTFMove(failedConstraint), WTFMove(message));
> }
> 
>+#if PLATFORM(IOS)
>+void UserMediaCaptureManager::setAudioCapturePageState(bool interrupted, bool pageMuted)
>+{
>+    if (auto* activeSource = static_cast<AudioCaptureFactory*>(this)->activeSource())
>+        activeSource->setInterrupted(interrupted, pageMuted);
>+}
>+
>+void UserMediaCaptureManager::setVideoCapturePageState(bool interrupted, bool pageMuted)
>+{
>+    if (auto* activeSource = static_cast<VideoCaptureFactory*>(this)->activeSource())
>+        activeSource->setInterrupted(interrupted, pageMuted);
>+}
>+#endif
>+
> }
> 
> #endif
>diff --git a/Source/WebKit/WebProcess/cocoa/UserMediaCaptureManager.h b/Source/WebKit/WebProcess/cocoa/UserMediaCaptureManager.h
>index b11ae744c3de1b0bed2712e648a669e1f2305d9f..baed0cd9e09b49d221e94018f649fe6dbcf92519 100644
>--- a/Source/WebKit/WebProcess/cocoa/UserMediaCaptureManager.h
>+++ b/Source/WebKit/WebProcess/cocoa/UserMediaCaptureManager.h
>@@ -79,6 +79,11 @@ private:
>     WebCore::CaptureDeviceManager& videoCaptureDeviceManager() final { return m_noOpCaptureDeviceManager; }
>     WebCore::CaptureDeviceManager& displayCaptureDeviceManager() final { return m_noOpCaptureDeviceManager; }
> 
>+#if PLATFORM(IOS_FAMILY)
>+    void setAudioCapturePageState(bool interrupted, bool pageMuted) final;
>+    void setVideoCapturePageState(bool interrupted, bool pageMuted) final;
>+#endif
>+
>     // IPC::MessageReceiver
>     void didReceiveMessage(IPC::Connection&, IPC::Decoder&) final;
> 
>diff --git a/LayoutTests/ChangeLog b/LayoutTests/ChangeLog
>index 008164f69226fed0b98d4864f0bb584a565f7726..5bae10d3589c0c082fc8b3b3b25642dcb01c311a 100644
>--- a/LayoutTests/ChangeLog
>+++ b/LayoutTests/ChangeLog
>@@ -1,3 +1,13 @@
>+2019-05-28  Youenn Fablet  <youenn@apple.com>
>+
>+        Add an option to mute audio capture automatically when page is not visible
>+        https://bugs.webkit.org/show_bug.cgi?id=198307
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        * platform/ios/mediastream/audio-muted-in-background-tab-expected.txt: Added.
>+        * platform/ios/mediastream/audio-muted-in-background-tab.html: Added.
>+
> 2019-05-23  Simon Fraser  <simon.fraser@apple.com>
> 
>         With async overflow scrolling, programmatic scroll to a negative offset fails to clamp the scroll offset
>diff --git a/LayoutTests/platform/ios/mediastream/audio-muted-in-background-tab-expected.txt b/LayoutTests/platform/ios/mediastream/audio-muted-in-background-tab-expected.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..408e29c7cbb9b4d05f04cd545bedff012e59472a
>--- /dev/null
>+++ b/LayoutTests/platform/ios/mediastream/audio-muted-in-background-tab-expected.txt
>@@ -0,0 +1,7 @@
>+
>+PASS Setup stream 
>+PASS Hide page, video and audio should be muted 
>+PASS Show page, video and audio should be unmuted 
>+PASS Hide and mute page, video and audio should be muted 
>+PASS Show page, video and audio should remain muted 
>+
>diff --git a/LayoutTests/platform/ios/mediastream/audio-muted-in-background-tab.html b/LayoutTests/platform/ios/mediastream/audio-muted-in-background-tab.html
>new file mode 100644
>index 0000000000000000000000000000000000000000..80e49edadf1f7a21ac00caf92cf543886817611a
>--- /dev/null
>+++ b/LayoutTests/platform/ios/mediastream/audio-muted-in-background-tab.html
>@@ -0,0 +1,72 @@
>+
>+<!doctype html>
>+<html>
>+    <head>
>+        <meta charset="utf-8">
>+        <title>Don't unmute audio when a tab becomes visible unless it was muted when the tab was hidden</title>
>+        <script src="../../../resources/testharness.js"></script>
>+        <script src="../../../resources/testharnessreport.js"></script>
>+    </head>
>+    <body>
>+        <script>
>+            let audioTrack;
>+            let videoTrack;
>+
>+            promise_test((t) => {
>+                if (window.testRunner)
>+                    testRunner.setUserMediaPermission(true);
>+                if (!window.internals)
>+                    return Promise.reject("this test needs internals API");
>+
>+                internals.setShouldInterruptAudioOnPageVisibilityChange(true);
>+
>+                return navigator.mediaDevices.getUserMedia({ audio: true, video: true }).then((stream) => {
>+                    audioTrack = stream.getAudioTracks()[0];
>+                    videoTrack = stream.getVideoTracks()[0];
>+
>+                    assert_false(audioTrack.muted, "audio track is active");
>+                    assert_false(videoTrack.muted, "video track is active");
>+                })
>+
>+                .then(() => {
>+                    test(() => {
>+                        if (window.internals)
>+                            window.internals.setPageVisibility(false);
>+                        assert_true(audioTrack.muted, "audio track is muted");
>+                        assert_true(videoTrack.muted, "video track is muted");
>+                    }, "Hide page, video and audio should be muted");
>+                })
>+
>+                .then(() => {
>+                    test(() => {
>+                        if (window.internals)
>+                            window.internals.setPageVisibility(true);
>+                        assert_false(audioTrack.muted, "audio track is active");
>+                        assert_false(videoTrack.muted, "video track is active");
>+                    }, "Show page, video and audio should be unmuted");
>+                })
>+
>+                .then(() => {
>+                    test(() => {
>+                        if (window.internals) {
>+                            window.internals.setPageVisibility(false);
>+                            window.internals.setPageMuted("capturedevices");
>+                        }
>+                        assert_true(audioTrack.muted, "audio track is muted");
>+                        assert_true(videoTrack.muted, "video track is muted");
>+                    }, "Hide and mute page, video and audio should be muted");
>+                })
>+
>+                .then(() => {
>+                    test(() => {
>+                        if (window.internals)
>+                            window.internals.setPageVisibility(true);
>+                        assert_true(audioTrack.muted, "audio track is muted");
>+                        assert_true(videoTrack.muted, "video track is muted");
>+                    }, "Show page, video and audio should remain muted");
>+                })
>+            }, "Setup stream");
>+
>+        </script>
>+    </body>
>+</html>

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Attachments on bug 198307: 370807 | 370851 | 370862 | 370967 | 370986 | 371013 | 371060