Attachment 358751 Details for Bug 193301 – Patch

[patch] Patch

bug-193301-20190109150343.patch (text/plain), 19.35 KB, created by Matt Rajca on 2019-01-09 15:03:43 PST

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Creator: Matt Rajca

Created: 2019-01-09 15:03:43 PST

Size: 19.35 KB

patch

obsolete

>Subversion Revision: 239787
>diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog
>index 25c58e6284f286583363a9767e0c23cf0cee3809..1ab552d4f99a62f6bd7d50fb7d20ef063e5fcda5 100644
>--- a/Source/WebCore/ChangeLog
>+++ b/Source/WebCore/ChangeLog
>@@ -1,3 +1,20 @@
>+2019-01-09  Matt Rajca  <mrajca@apple.com>
>+
>+        Put per-document autoplay behavior behind runtime website policies quirk instead of a compile time flag
>+        https://bugs.webkit.org/show_bug.cgi?id=193301
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Instead of unconditionally enabling this with a compile-time flag, let clients
>+        enable the quirk on a per-load basis.
>+
>+        Tests: added API tests.
>+
>+        * html/MediaElementSession.cpp:
>+        (WebCore::needsPerDocumentAutoplayBehaviorQuirk):
>+        (WebCore::MediaElementSession::playbackPermitted const):
>+        * loader/DocumentLoader.h:
>+
> 2019-01-09  Zalan Bujtas  <zalan@apple.com>
> 
>         [Datalist] Crash when input with datalist is dynamically added.
>diff --git a/Source/WebKit/ChangeLog b/Source/WebKit/ChangeLog
>index e1197ef54d65a5040dab010a48fba34029eb33c4..1a7a1abd1fa4de1b4b8f004dca4d951f7988fdbe 100644
>--- a/Source/WebKit/ChangeLog
>+++ b/Source/WebKit/ChangeLog
>@@ -1,3 +1,25 @@
>+2019-01-09  Matt Rajca  <mrajca@apple.com>
>+
>+        Put per-document autoplay behavior behind runtime website policies quirk instead of a compile time flag
>+        https://bugs.webkit.org/show_bug.cgi?id=193301
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Register a new quirk that can be configured per-load for per-document media
>+        autoplay behaviors.
>+
>+        * Shared/WebsiteAutoplayQuirk.h:
>+        * Shared/WebsitePoliciesData.cpp:
>+        (WebKit::WebsitePoliciesData::applyToDocumentLoader):
>+        * UIProcess/API/C/WKWebsitePolicies.cpp:
>+        (WKWebsitePoliciesSetAllowedAutoplayQuirks):
>+        (WKWebsitePoliciesGetAllowedAutoplayQuirks):
>+        * UIProcess/API/C/WKWebsitePolicies.h:
>+        * UIProcess/API/Cocoa/_WKWebsitePolicies.h:
>+        * UIProcess/API/Cocoa/_WKWebsitePolicies.mm:
>+        (-[_WKWebsitePolicies setAllowedAutoplayQuirks:]):
>+        (-[_WKWebsitePolicies allowedAutoplayQuirks]):
>+
> 2019-01-09  Brent Fulgham  <bfulgham@apple.com>
> 
>         [iOS] Update sandbox profile to use iconservices instead of lsdiconservice
>diff --git a/Source/WebCore/html/MediaElementSession.cpp b/Source/WebCore/html/MediaElementSession.cpp
>index eae608eee5df6742d3f4be866ad6334375daab80..be6203dd7dc0c5a642167598ab009557503f4b16 100644
>--- a/Source/WebCore/html/MediaElementSession.cpp
>+++ b/Source/WebCore/html/MediaElementSession.cpp
>@@ -255,6 +255,15 @@ static bool needsArbitraryUserGestureAutoplayQuirk(const Document& document)
> }
> #endif // PLATFORM(MAC)
> 
>+static bool needsPerDocumentAutoplayBehaviorQuirk(const Document& document)
>+{
>+    if (!document.settings().needsSiteSpecificQuirks())
>+        return false;
>+
>+    auto loader = makeRefPtr(document.loader());
>+    return loader && loader->allowedAutoplayQuirks().contains(AutoplayQuirk::PerDocumentAutoplayBehavior);
>+}
>+
> SuccessOr<MediaPlaybackDenialReason> MediaElementSession::playbackPermitted() const
> {
>     if (m_element.isSuspended()) {
>@@ -290,12 +299,11 @@ SuccessOr<MediaPlaybackDenialReason> MediaElementSession::playbackPermitted() co
>     }
> #endif
> 
>-#if PLATFORM(MAC)
>-    // FIXME <https://webkit.org/b/175856>: Make this dependent on a runtime flag for desktop autoplay restrictions.
>     const auto& topDocument = document.topDocument();
>-    if (topDocument.mediaState() & MediaProducer::HasUserInteractedWithMediaElement && topDocument.settings().needsSiteSpecificQuirks())
>+    if (topDocument.mediaState() & MediaProducer::HasUserInteractedWithMediaElement && needsPerDocumentAutoplayBehaviorQuirk(topDocument))
>         return { };
> 
>+#if PLATFORM(MAC)
>     if (document.hasHadUserInteraction() && needsArbitraryUserGestureAutoplayQuirk(document))
>         return { };
> #endif
>diff --git a/Source/WebCore/loader/DocumentLoader.h b/Source/WebCore/loader/DocumentLoader.h
>index f4c637739a3594db19a3d5ded204fbd3ee2f70fe..804be9bd75eac205ffcf6bdb94487fd182c91c3d 100644
>--- a/Source/WebCore/loader/DocumentLoader.h
>+++ b/Source/WebCore/loader/DocumentLoader.h
>@@ -103,6 +103,7 @@ enum class AutoplayQuirk {
>     SynthesizedPauseEvents = 1 << 0,
>     InheritedUserGestures = 1 << 1,
>     ArbitraryUserGestures = 1 << 2,
>+    PerDocumentAutoplayBehavior = 1 << 3,
> };
> 
> enum class PopUpPolicy {
>diff --git a/Source/WebKit/Shared/WebsiteAutoplayQuirk.h b/Source/WebKit/Shared/WebsiteAutoplayQuirk.h
>index cd473e5b1955e062d736b608e58fc4b62f0f249a..df98be7d6126173a0fc5f7214758a5fd45286cb7 100644
>--- a/Source/WebKit/Shared/WebsiteAutoplayQuirk.h
>+++ b/Source/WebKit/Shared/WebsiteAutoplayQuirk.h
>@@ -31,6 +31,7 @@ enum class WebsiteAutoplayQuirk {
>     SynthesizedPauseEvents = 1 << 0,
>     InheritedUserGestures = 1 << 1,
>     ArbitraryUserGestures = 1 << 2,
>+    PerDocumentAutoplayBehavior = 1 << 3,
> };
> 
> }
>diff --git a/Source/WebKit/Shared/WebsitePoliciesData.cpp b/Source/WebKit/Shared/WebsitePoliciesData.cpp
>index b44c98653086d8b3c32ade2bba35c54b449c6fba..fb8e240599d8bb580a83e8d1b0fbf684b5e6714e 100644
>--- a/Source/WebKit/Shared/WebsitePoliciesData.cpp
>+++ b/Source/WebKit/Shared/WebsitePoliciesData.cpp
>@@ -130,6 +130,9 @@ void WebsitePoliciesData::applyToDocumentLoader(WebsitePoliciesData&& websitePol
>     if (allowedQuirks.contains(WebsiteAutoplayQuirk::ArbitraryUserGestures))
>         quirks.add(WebCore::AutoplayQuirk::ArbitraryUserGestures);
> 
>+    if (allowedQuirks.contains(WebsiteAutoplayQuirk::PerDocumentAutoplayBehavior))
>+        quirks.add(WebCore::AutoplayQuirk::PerDocumentAutoplayBehavior);
>+
>     documentLoader.setAllowedAutoplayQuirks(quirks);
> 
>     switch (websitePolicies.autoplayPolicy) {
>diff --git a/Source/WebKit/UIProcess/API/C/WKWebsitePolicies.cpp b/Source/WebKit/UIProcess/API/C/WKWebsitePolicies.cpp
>index 668edb25d5f29d03ffbd3e1bd37b7fcad97ac9a9..64dbef86ce3adee875404a7b5c2d4753cb41c7e7 100644
>--- a/Source/WebKit/UIProcess/API/C/WKWebsitePolicies.cpp
>+++ b/Source/WebKit/UIProcess/API/C/WKWebsitePolicies.cpp
>@@ -91,6 +91,9 @@ void WKWebsitePoliciesSetAllowedAutoplayQuirks(WKWebsitePoliciesRef websitePolic
>     if (allowedQuirks & kWKWebsiteAutoplayQuirkArbitraryUserGestures)
>         quirks.add(WebsiteAutoplayQuirk::ArbitraryUserGestures);
> 
>+    if (allowedQuirks & kWKWebsiteAutoplayQuirkPerDocumentAutoplayBehavior)
>+        quirks.add(WebsiteAutoplayQuirk::PerDocumentAutoplayBehavior);
>+
>     toImpl(websitePolicies)->setAllowedAutoplayQuirks(quirks);
> }
> 
>@@ -108,6 +111,9 @@ WKWebsiteAutoplayQuirk WKWebsitePoliciesGetAllowedAutoplayQuirks(WKWebsitePolici
>     if (allowedQuirks.contains(WebsiteAutoplayQuirk::ArbitraryUserGestures))
>         quirks |= kWKWebsiteAutoplayQuirkArbitraryUserGestures;
> 
>+    if (allowedQuirks.contains(WebsiteAutoplayQuirk::PerDocumentAutoplayBehavior))
>+        quirks |= kWKWebsiteAutoplayQuirkPerDocumentAutoplayBehavior;
>+
>     return quirks;
> }
> 
>diff --git a/Source/WebKit/UIProcess/API/C/WKWebsitePolicies.h b/Source/WebKit/UIProcess/API/C/WKWebsitePolicies.h
>index afcf421fc342788704befeb1e2b15a28a543b65a..309648b329583bb7825f3df442cb37b6d70730f5 100644
>--- a/Source/WebKit/UIProcess/API/C/WKWebsitePolicies.h
>+++ b/Source/WebKit/UIProcess/API/C/WKWebsitePolicies.h
>@@ -45,6 +45,7 @@ enum {
>     kWKWebsiteAutoplayQuirkSynthesizedPauseEvents = 1 << 0,
>     kWKWebsiteAutoplayQuirkInheritedUserGestures = 1 << 1,
>     kWKWebsiteAutoplayQuirkArbitraryUserGestures = 1 << 2,
>+    kWKWebsiteAutoplayQuirkPerDocumentAutoplayBehavior = 1 << 3,
> };
> 
> enum WKWebsitePopUpPolicy {
>diff --git a/Source/WebKit/UIProcess/API/Cocoa/_WKWebsitePolicies.h b/Source/WebKit/UIProcess/API/Cocoa/_WKWebsitePolicies.h
>index 6a2d32f25cec49fe24b3a0d26baf7835480497b3..cb7c2d0a4b714c903f94d5c8b9635f2900a2cd26 100644
>--- a/Source/WebKit/UIProcess/API/Cocoa/_WKWebsitePolicies.h
>+++ b/Source/WebKit/UIProcess/API/Cocoa/_WKWebsitePolicies.h
>@@ -38,6 +38,7 @@ typedef NS_OPTIONS(NSUInteger, _WKWebsiteAutoplayQuirk) {
>     _WKWebsiteAutoplayQuirkSynthesizedPauseEvents = 1 << 0,
>     _WKWebsiteAutoplayQuirkInheritedUserGestures = 1 << 1,
>     _WKWebsiteAutoplayQuirkArbitraryUserGestures = 1 << 2,
>+    _WKWebsiteAutoplayQuirkPerDocumentAutoplayBehavior = 1 << 3,
> } WK_API_AVAILABLE(macosx(10.13), ios(11.0));
> 
> typedef NS_OPTIONS(NSUInteger, _WKWebsitePopUpPolicy) {
>diff --git a/Source/WebKit/UIProcess/API/Cocoa/_WKWebsitePolicies.mm b/Source/WebKit/UIProcess/API/Cocoa/_WKWebsitePolicies.mm
>index 46286cdbf9b2656ed5420d1bdff270bf96f715b3..3928e3949b6b4e4bdf8ea0722af3353d33d236d1 100644
>--- a/Source/WebKit/UIProcess/API/Cocoa/_WKWebsitePolicies.mm
>+++ b/Source/WebKit/UIProcess/API/Cocoa/_WKWebsitePolicies.mm
>@@ -82,6 +82,9 @@ - (void)setAllowedAutoplayQuirks:(_WKWebsiteAutoplayQuirk)allowedQuirks
>     if (allowedQuirks & _WKWebsiteAutoplayQuirkArbitraryUserGestures)
>         quirks.add(WebKit::WebsiteAutoplayQuirk::ArbitraryUserGestures);
> 
>+    if (allowedQuirks & _WKWebsiteAutoplayQuirkPerDocumentAutoplayBehavior)
>+        quirks.add(WebKit::WebsiteAutoplayQuirk::PerDocumentAutoplayBehavior);
>+
>     _websitePolicies->setAllowedAutoplayQuirks(quirks);
> }
> 
>@@ -99,6 +102,9 @@ - (_WKWebsiteAutoplayQuirk)allowedAutoplayQuirks
>     if (allowedQuirks.contains(WebKit::WebsiteAutoplayQuirk::ArbitraryUserGestures))
>         quirks |= _WKWebsiteAutoplayQuirkArbitraryUserGestures;
> 
>+    if (allowedQuirks.contains(WebKit::WebsiteAutoplayQuirk::PerDocumentAutoplayBehavior))
>+        quirks |= _WKWebsiteAutoplayQuirkPerDocumentAutoplayBehavior;
>+
>     return quirks;
> }
> 
>diff --git a/Tools/ChangeLog b/Tools/ChangeLog
>index dac4e62334e49a9551de4736118084ab527250bd..d9a98e52243ee98c3af0cde9789c1e5211f04a43 100644
>--- a/Tools/ChangeLog
>+++ b/Tools/ChangeLog
>@@ -1,3 +1,17 @@
>+2019-01-09  Matt Rajca  <mrajca@apple.com>
>+
>+        Put per-document autoplay behavior behind runtime website policies quirk instead of a compile time flag
>+        https://bugs.webkit.org/show_bug.cgi?id=193301
>+
>+        Reviewed by NOBODY (OOPS!).
>+        
>+        Added API tests.
>+
>+        * TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj:
>+        * TestWebKitAPI/Tests/WebKitCocoa/WebsitePolicies.mm:
>+        (TEST):
>+        * TestWebKitAPI/Tests/WebKitCocoa/autoplaying-multiple-media-elements.html: Added.
>+
> 2019-01-09  Aakash Jain  <aakash_jain@apple.com>
> 
>         [ews-build] Add link to bug along with bug title
>diff --git a/Tools/TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj b/Tools/TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj
>index 3bf2be690c08dbaa577fc701b8a8b1c2f5d32887..12d2a04aabeec19483c7caba35a7dbdb747f937a 100644
>--- a/Tools/TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj
>+++ b/Tools/TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj
>@@ -739,6 +739,7 @@
> 		C9C60E661E53A9DC006DA181 /* autoplay-check-in-iframe.html in Copy Resources */ = {isa = PBXBuildFile; fileRef = C9C60E641E53A9BA006DA181 /* autoplay-check-in-iframe.html */; };
> 		C9C9A91B21DED28700FDE96E /* audio-with-play-button.html in Copy Resources */ = {isa = PBXBuildFile; fileRef = C9C9A91A21DED24D00FDE96E /* audio-with-play-button.html */; };
> 		C9C9A91D21DED7A000FDE96E /* video-with-play-button.html in Copy Resources */ = {isa = PBXBuildFile; fileRef = C9C9A91C21DED79400FDE96E /* video-with-play-button.html */; };
>+		C9C9CD4321E6A6860019DB96 /* autoplaying-multiple-media-elements.html in Copy Resources */ = {isa = PBXBuildFile; fileRef = C9C9CD4221E6A6670019DB96 /* autoplaying-multiple-media-elements.html */; };
> 		C9E6DD351EA97D0800DD78AA /* FirstResponderSuppression.mm in Sources */ = {isa = PBXBuildFile; fileRef = C9E6DD311EA972D800DD78AA /* FirstResponderSuppression.mm */; };
> 		C9E8EE7521DED94300797765 /* long-test.mp4 in Copy Resources */ = {isa = PBXBuildFile; fileRef = C9E8EE7421DED91E00797765 /* long-test.mp4 */; };
> 		CA38459620AE17A900990D3B /* LocalStorageDatabaseTracker.mm in Sources */ = {isa = PBXBuildFile; fileRef = CA38459520AE012E00990D3B /* LocalStorageDatabaseTracker.mm */; };
>@@ -1015,6 +1016,7 @@
> 				C95984F51E36BC6B002C0D45 /* autoplay-no-audio-check.html in Copy Resources */,
> 				C99B675C1E39721A00FC6C80 /* autoplay-with-controls.html in Copy Resources */,
> 				C99BDF891E80980400C7170E /* autoplay-zero-volume-check.html in Copy Resources */,
>+				C9C9CD4321E6A6860019DB96 /* autoplaying-multiple-media-elements.html in Copy Resources */,
> 				2E14A5291D3FE96B0010F35B /* autoplaying-video-with-audio.html in Copy Resources */,
> 				F41AB9A01EF4696B0083FA08 /* background-image-link-and-input.html in Copy Resources */,
> 				2DE71B001D49C3ED00904094 /* blinking-div.html in Copy Resources */,
>@@ -2028,6 +2030,7 @@
> 		C9C60E641E53A9BA006DA181 /* autoplay-check-in-iframe.html */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.html; path = "autoplay-check-in-iframe.html"; sourceTree = "<group>"; };
> 		C9C9A91A21DED24D00FDE96E /* audio-with-play-button.html */ = {isa = PBXFileReference; lastKnownFileType = text.html; name = "audio-with-play-button.html"; path = "Tests/WebKitCocoa/audio-with-play-button.html"; sourceTree = SOURCE_ROOT; };
> 		C9C9A91C21DED79400FDE96E /* video-with-play-button.html */ = {isa = PBXFileReference; lastKnownFileType = text.html; name = "video-with-play-button.html"; path = "Tests/WebKitCocoa/video-with-play-button.html"; sourceTree = SOURCE_ROOT; };
>+		C9C9CD4221E6A6670019DB96 /* autoplaying-multiple-media-elements.html */ = {isa = PBXFileReference; lastKnownFileType = text.html; path = "autoplaying-multiple-media-elements.html"; sourceTree = "<group>"; };
> 		C9E6DD311EA972D800DD78AA /* FirstResponderSuppression.mm */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.objcpp; path = FirstResponderSuppression.mm; sourceTree = "<group>"; };
> 		C9E8EE7421DED91E00797765 /* long-test.mp4 */ = {isa = PBXFileReference; lastKnownFileType = file; path = "long-test.mp4"; sourceTree = "<group>"; };
> 		CA38459520AE012E00990D3B /* LocalStorageDatabaseTracker.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = LocalStorageDatabaseTracker.mm; sourceTree = "<group>"; };
>@@ -2788,6 +2791,7 @@
> 				CD57779A211CE6B7001B371E /* audio-with-web-audio.html */,
> 				F41AB9981EF4692C0083FA08 /* autofocus-contenteditable.html */,
> 				93CFA8661CEB9DE1000565A8 /* autofocused-text-input.html */,
>+				C9C9CD4221E6A6670019DB96 /* autoplaying-multiple-media-elements.html */,
> 				2E14A5281D3FE8B80010F35B /* autoplaying-video-with-audio.html */,
> 				F41AB9971EF4692C0083FA08 /* background-image-link-and-input.html */,
> 				2DE71AFF1D49C2F000904094 /* blinking-div.html */,
>diff --git a/Tools/TestWebKitAPI/Tests/WebKitCocoa/WebsitePolicies.mm b/Tools/TestWebKitAPI/Tests/WebKitCocoa/WebsitePolicies.mm
>index 7b68f77da6ccf2e8e7bd5eeee80f21a791044e77..825ed10d2b2907b97a4d56c6ecf537352aa10b75 100644
>--- a/Tools/TestWebKitAPI/Tests/WebKitCocoa/WebsitePolicies.mm
>+++ b/Tools/TestWebKitAPI/Tests/WebKitCocoa/WebsitePolicies.mm
>@@ -741,6 +741,69 @@ TEST(WebKit, WebsitePoliciesAutoplayQuirks)
>     [webView waitForMessage:@"playing"];
> }
> 
>+TEST(WebKit, WebsitePoliciesPerDocumentAutoplayBehaviorQuirks)
>+{
>+    auto configuration = adoptNS([[WKWebViewConfiguration alloc] init]);
>+    auto webView = adoptNS([[TestWKWebView alloc] initWithFrame:NSMakeRect(0, 0, 800, 600) configuration:configuration.get()]);
>+
>+    auto delegate = adoptNS([[AutoplayPoliciesDelegate alloc] init]);
>+    [webView setNavigationDelegate:delegate.get()];
>+
>+    WKRetainPtr<WKPreferencesRef> preferences(AdoptWK, WKPreferencesCreate());
>+    WKPreferencesSetNeedsSiteSpecificQuirks(preferences.get(), true);
>+    WKPageGroupSetPreferences(WKPageGetPageGroup([webView _pageForTesting]), preferences.get());
>+
>+    receivedAutoplayEvent = WTF::nullopt;
>+
>+    NSURLRequest *requestWithMultipleMediaElements = [NSURLRequest requestWithURL:[[NSBundle mainBundle] URLForResource:@"autoplaying-multiple-media-elements" withExtension:@"html" subdirectory:@"TestWebKitAPI.resources"]];
>+
>+    [delegate setAllowedAutoplayQuirksForURL:^_WKWebsiteAutoplayQuirk(NSURL *url) {
>+        return _WKWebsiteAutoplayQuirkPerDocumentAutoplayBehavior;
>+    }];
>+    [delegate setAutoplayPolicyForURL:^(NSURL *) {
>+        return _WKWebsiteAutoplayPolicyDeny;
>+    }];
>+    [webView loadRequest:requestWithMultipleMediaElements];
>+    [webView waitForMessage:@"loaded"];
>+
>+    // We should not be allowed to play without a user gesture.
>+    [webView _evaluateJavaScriptWithoutUserGesture:@"playVideo('video1')" completionHandler:nil];
>+    [webView waitForMessage:@"did-not-play-video1"];
>+
>+    // Now try again with a user gesture...
>+    const NSPoint playButtonClickPoint = NSMakePoint(20, 580);
>+    [webView mouseDownAtPoint:playButtonClickPoint simulatePressure:NO];
>+    [webView mouseUpAtPoint:playButtonClickPoint];
>+    [webView waitForMessage:@"did-play-video1"];
>+
>+    // Now video2 should also be allowed to autoplay without a user gesture because of the quirk.
>+    [webView _evaluateJavaScriptWithoutUserGesture:@"playVideo('video2')" completionHandler:nil];
>+    [webView waitForMessage:@"did-play-video2"];
>+
>+    // Now let's test this without the quirk.
>+    [webView loadHTMLString:@"" baseURL:nil];
>+    receivedAutoplayEvent = WTF::nullopt;
>+
>+    [delegate setAllowedAutoplayQuirksForURL:^_WKWebsiteAutoplayQuirk(NSURL *url) {
>+        return 0;
>+    }];
>+    [webView loadRequest:requestWithMultipleMediaElements];
>+    [webView waitForMessage:@"loaded"];
>+
>+    // We should not be allowed to play without a user gesture.
>+    [webView _evaluateJavaScriptWithoutUserGesture:@"playVideo('video1')" completionHandler:nil];
>+    [webView waitForMessage:@"did-not-play-video1"];
>+
>+    // Now try again with a user gesture...
>+    [webView mouseDownAtPoint:playButtonClickPoint simulatePressure:NO];
>+    [webView mouseUpAtPoint:playButtonClickPoint];
>+    [webView waitForMessage:@"did-play-video1"];
>+
>+    // Now video2 should not be allowed to autoplay without a user gesture.
>+    [webView _evaluateJavaScriptWithoutUserGesture:@"playVideo('video2')" completionHandler:nil];
>+    [webView waitForMessage:@"did-not-play-video2"];
>+}
>+
> TEST(WebKit, WebsitePoliciesAutoplayQuirksAsyncPolicyDelegate)
> {
>     auto configuration = adoptNS([[WKWebViewConfiguration alloc] init]);
>diff --git a/Tools/TestWebKitAPI/Tests/WebKitCocoa/autoplaying-multiple-media-elements.html b/Tools/TestWebKitAPI/Tests/WebKitCocoa/autoplaying-multiple-media-elements.html
>new file mode 100644
>index 0000000000000000000000000000000000000000..72965c049b2d8e4491242163ff70384a91abbeaa
>--- /dev/null
>+++ b/Tools/TestWebKitAPI/Tests/WebKitCocoa/autoplaying-multiple-media-elements.html
>@@ -0,0 +1,34 @@
>+<!DOCTYPE html>
>+<html>
>+<head>
>+    <script>
>+
>+    function pageLoaded() {
>+        try {
>+            window.webkit.messageHandlers.testHandler.postMessage('loaded');
>+        } catch(e) { }
>+    }
>+
>+    function playVideo(identifier) {
>+        document.getElementById(identifier).play().catch(function() {
>+            try {
>+                window.webkit.messageHandlers.testHandler.postMessage("did-not-play-" + identifier);
>+            } catch(e) { }
>+        });
>+    }
>+
>+    function didPlayVideo(identifier) {
>+        try {
>+            window.webkit.messageHandlers.testHandler.postMessage("did-play-" + identifier);
>+        } catch(e) { }
>+    }
>+
>+   </script>
>+</head>
>+<body onload="pageLoaded()">
>+    <button onclick="playVideo('video1')">Play Video 1</button>
>+    <br />
>+    <video id="video1" onplaying="didPlayVideo('video1')" src="video-with-audio.mp4"></video>
>+    <video id="video2" onplaying="didPlayVideo('video2')" src="video-with-audio.mp4"></video>
>+</body>
>+</html>

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Attachments on bug 193301: 358751 | 358756