Attachment 368599 Details for Bug 197428 – Patch

[patch] Patch

bug-197428-20190430131235.patch (text/plain), 24.88 KB, created by Eric Carlson on 2019-04-30 13:12:36 PDT

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Creator: Eric Carlson

Created: 2019-04-30 13:12:36 PDT

Size: 24.88 KB

patch

obsolete

>Subversion Revision: 244732
>diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog
>index d3c94590602595c42527d99f8caad2d74a933749..e6aae2451a0f51c23e2b1e5b6b698c9c3a2d9c5c 100644
>--- a/Source/WebCore/ChangeLog
>+++ b/Source/WebCore/ChangeLog
>@@ -1,3 +1,50 @@
>+2019-04-30  Eric Carlson  <eric.carlson@apple.com>
>+
>+        XMLHttpRequest should propagate user gestures for media playback
>+        https://bugs.webkit.org/show_bug.cgi?id=197428
>+        <rdar://problem/46677392>
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        A user gesture the would allow media state change in effect when XMLHttpRequest.send is 
>+        called should be active when the event handlers fire after the transaction completes successfully.
>+
>+        Test: http/tests/media/user-gesture-preserved-across-xmlhttprequest.html
>+
>+        * dom/UserGestureIndicator.cpp:
>+        (WebCore::UserGestureIndicator::UserGestureIndicator): Add a 'scope' parameter to potentially
>+        limit the scope of the gesture to just media.
>+        (WebCore::UserGestureIndicator::~UserGestureIndicator): Clear the scope.
>+        * dom/UserGestureIndicator.h:
>+        (WebCore::UserGestureToken::processingUserGesture const):
>+        (WebCore::UserGestureToken::setScope):
>+        (WebCore::UserGestureToken::resetScope):
>+        (WebCore::UserGestureToken::hasExpired const):
>+
>+        * page/DOMTimer.cpp:
>+        (WebCore::DOMTimerFireState::DOMTimerFireState): Don't need to store the nested timer interval,
>+        UserGestureIndicator knows when it started.
>+        (WebCore::DOMTimer::DOMTimer): Ditto.
>+        (WebCore::DOMTimer::fired): Ditto.
>+        (WebCore::DOMTimerFireState::nestedTimerInterval const): Deleted.
>+        (WebCore::shouldForwardUserGesture): Deleted.
>+        (WebCore::userGestureTokenToForward): Deleted.
>+        (WebCore::currentNestedTimerInterval): Deleted.
>+        * page/DOMTimer.h:
>+
>+        * testing/Internals.cpp:
>+        (WebCore::Internals::setXHRMaximumIntervalForUserGestureForwarding): Override the maximum
>+        user gesture interval for testing.
>+        * testing/Internals.h:
>+        * testing/Internals.idl:
>+
>+        * xml/XMLHttpRequest.cpp:
>+        (WebCore::XMLHttpRequest::XMLHttpRequest): 
>+        (WebCore::XMLHttpRequest::send): Stash the user gesture token.
>+        (WebCore::XMLHttpRequest::dispatchEvent): Clear user gesture token if it has expired. If still
>+        valid, activate it.
>+        * xml/XMLHttpRequest.h:
>+
> 2019-04-25  Carlos Garcia Campos  <cgarcia@igalia.com>
> 
>         REGRESSION(r244635): [GTK] Wrong background color used in non-dark mode
>diff --git a/Source/WebCore/dom/UserGestureIndicator.cpp b/Source/WebCore/dom/UserGestureIndicator.cpp
>index 0460c816f060111f653be6fd287495bb11a1ab0c..0ec20b194cdd15abb5d473cc3709d16957b88b4b 100644
>--- a/Source/WebCore/dom/UserGestureIndicator.cpp
>+++ b/Source/WebCore/dom/UserGestureIndicator.cpp
>@@ -70,7 +70,7 @@ UserGestureIndicator::UserGestureIndicator(Optional<ProcessingUserGestureState>
>     }
> }
> 
>-UserGestureIndicator::UserGestureIndicator(RefPtr<UserGestureToken> token)
>+UserGestureIndicator::UserGestureIndicator(RefPtr<UserGestureToken> token, UserGestureToken::GestureScope scope)
> {
>     // Silently ignore UserGestureIndicators on non main threads.
>     if (!isMainThread())
>@@ -79,8 +79,10 @@ UserGestureIndicator::UserGestureIndicator(RefPtr<UserGestureToken> token)
>     // It is only safe to use currentToken() on the main thread.
>     m_previousToken = currentToken();
> 
>-    if (token)
>+    if (token) {
>+        token->setScope(scope);
>         currentToken() = token;
>+    }
> }
> 
> UserGestureIndicator::~UserGestureIndicator()
>@@ -88,8 +90,10 @@ UserGestureIndicator::~UserGestureIndicator()
>     if (!isMainThread())
>         return;
>     
>-    if (auto token = currentToken())
>+    if (auto token = currentToken()) {
>         token->resetDOMPasteAccess();
>+        token->resetScope();
>+    }
> 
>     currentToken() = m_previousToken;
> }
>diff --git a/Source/WebCore/dom/UserGestureIndicator.h b/Source/WebCore/dom/UserGestureIndicator.h
>index 66bf7ddaa25d10a27c8c7f83d01d0a7cfa96f2c0..cca4240edce31c3ee5f7389c14a4aa738435ea99 100644
>--- a/Source/WebCore/dom/UserGestureIndicator.h
>+++ b/Source/WebCore/dom/UserGestureIndicator.h
>@@ -27,6 +27,7 @@
> 
> #include "DOMPasteAccess.h"
> #include <wtf/Function.h>
>+#include <wtf/MonotonicTime.h>
> #include <wtf/Noncopyable.h>
> #include <wtf/RefCounted.h>
> #include <wtf/Vector.h>
>@@ -53,7 +54,7 @@ public:
>     WEBCORE_EXPORT ~UserGestureToken();
> 
>     ProcessingUserGestureState state() const { return m_state; }
>-    bool processingUserGesture() const { return m_state == ProcessingUserGesture; }
>+    bool processingUserGesture() const { return m_scope == GestureScope::All && m_state == ProcessingUserGesture; }
>     bool processingUserGestureForMedia() const { return m_state == ProcessingUserGesture || m_state == ProcessingPotentialUserGesture; }
>     UserGestureType gestureType() const { return m_gestureType; }
> 
>@@ -78,6 +79,15 @@ public:
>     }
>     void resetDOMPasteAccess() { m_domPasteAccessPolicy = DOMPasteAccessPolicy::NotRequestedYet; }
> 
>+    enum class GestureScope { All, MediaOnly };
>+    void setScope(GestureScope scope) { m_scope = scope; }
>+    void resetScope() { m_scope = GestureScope::All; }
>+
>+    bool hasExpired(Seconds expirationInterval) const
>+    {
>+        return m_startTime + expirationInterval < MonotonicTime::now();
>+    }
>+
> private:
>     UserGestureToken(ProcessingUserGestureState state, UserGestureType gestureType)
>         : m_state(state)
>@@ -89,6 +99,8 @@ private:
>     Vector<WTF::Function<void (UserGestureToken&)>> m_destructionObservers;
>     UserGestureType m_gestureType;
>     DOMPasteAccessPolicy m_domPasteAccessPolicy { DOMPasteAccessPolicy::NotRequestedYet };
>+    GestureScope m_scope { GestureScope::All };
>+    MonotonicTime m_startTime { MonotonicTime::now() };
> };
> 
> class UserGestureIndicator {
>@@ -103,7 +115,7 @@ public:
>     // If a document is provided, its last known user gesture timestamp is updated.
>     enum class ProcessInteractionStyle { Immediate, Delayed };
>     WEBCORE_EXPORT explicit UserGestureIndicator(Optional<ProcessingUserGestureState>, Document* = nullptr, UserGestureType = UserGestureType::Other, ProcessInteractionStyle = ProcessInteractionStyle::Immediate);
>-    WEBCORE_EXPORT explicit UserGestureIndicator(RefPtr<UserGestureToken>);
>+    WEBCORE_EXPORT explicit UserGestureIndicator(RefPtr<UserGestureToken>, UserGestureToken::GestureScope = UserGestureToken::GestureScope::All);
>     WEBCORE_EXPORT ~UserGestureIndicator();
> 
> private:
>diff --git a/Source/WebCore/page/DOMTimer.cpp b/Source/WebCore/page/DOMTimer.cpp
>index 64f26547a9c3ff40390c502a73aafbbcf483b041..6a22dbe7c2c98e160d22ed5bc1c9eb6426fb5d0d 100644
>--- a/Source/WebCore/page/DOMTimer.cpp
>+++ b/Source/WebCore/page/DOMTimer.cpp
>@@ -53,9 +53,8 @@ static const int maxTimerNestingLevel = 5;
> 
> class DOMTimerFireState {
> public:
>-    DOMTimerFireState(ScriptExecutionContext& context, int nestingLevel, const Seconds& nestedTimerInterval)
>+    DOMTimerFireState(ScriptExecutionContext& context, int nestingLevel)
>         : m_context(context)
>-        , m_nestedTimerInterval(nestedTimerInterval)
>         , m_contextIsDocument(is<Document>(m_context))
>     {
>         // For worker threads, don't update the current DOMTimerFireState.
>@@ -78,8 +77,6 @@ public:
> 
>     Document* contextDocument() const { return m_contextIsDocument ? &downcast<Document>(m_context) : nullptr; }
> 
>-    const Seconds& nestedTimerInterval() const { return m_nestedTimerInterval; }
>-
>     void setScriptMadeUserObservableChanges() { m_scriptMadeUserObservableChanges = true; }
>     void setScriptMadeNonUserObservableChanges() { m_scriptMadeNonUserObservableChanges = true; }
> 
>@@ -98,7 +95,6 @@ public:
> 
> private:
>     ScriptExecutionContext& m_context;
>-    Seconds m_nestedTimerInterval;
>     uint64_t m_initialDOMTreeVersion;
>     DOMTimerFireState* m_previous;
>     bool m_contextIsDocument;
>@@ -163,27 +159,6 @@ private:
> 
> bool NestedTimersMap::isTrackingNestedTimers = false;
> 
>-static inline bool shouldForwardUserGesture(Seconds interval)
>-{
>-    return UserGestureIndicator::processingUserGesture()
>-        && interval <= maxIntervalForUserGestureForwarding;
>-}
>-
>-static inline RefPtr<UserGestureToken> userGestureTokenToForward(Seconds interval)
>-{
>-    if (!shouldForwardUserGesture(interval))
>-        return nullptr;
>-
>-    return UserGestureIndicator::currentUserGesture();
>-}
>-
>-static inline Seconds currentNestedTimerInterval()
>-{
>-    if (DOMTimerFireState::current)
>-        return DOMTimerFireState::current->nestedTimerInterval();
>-    return { };
>-}
>-
> DOMTimer::DOMTimer(ScriptExecutionContext& context, std::unique_ptr<ScheduledAction> action, Seconds interval, bool singleShot)
>     : SuspendableTimer(context)
>     , m_nestingLevel(context.timerNestingLevel())
>@@ -191,8 +166,7 @@ DOMTimer::DOMTimer(ScriptExecutionContext& context, std::unique_ptr<ScheduledAct
>     , m_originalInterval(interval)
>     , m_throttleState(Undetermined)
>     , m_currentTimerInterval(intervalClampedToMinimum())
>-    , m_nestedTimerInterval(currentNestedTimerInterval())
>-    , m_userGestureTokenToForward(userGestureTokenToForward(m_nestedTimerInterval + m_currentTimerInterval))
>+    , m_userGestureTokenToForward(UserGestureIndicator::currentUserGesture())
> {
>     RefPtr<DOMTimer> reference = adoptRef(this);
> 
>@@ -310,7 +284,10 @@ void DOMTimer::fired()
>     ASSERT(scriptExecutionContext());
>     ScriptExecutionContext& context = *scriptExecutionContext();
> 
>-    DOMTimerFireState fireState(context, std::min(m_nestingLevel + 1, maxTimerNestingLevel), m_nestedTimerInterval + m_currentTimerInterval);
>+    DOMTimerFireState fireState(context, std::min(m_nestingLevel + 1, maxTimerNestingLevel));
>+
>+    if (m_userGestureTokenToForward && m_userGestureTokenToForward->hasExpired(maxIntervalForUserGestureForwarding))
>+        m_userGestureTokenToForward = nullptr;
> 
>     ASSERT(!isSuspended());
>     ASSERT(!context.activeDOMObjectsAreSuspended());
>diff --git a/Source/WebCore/page/DOMTimer.h b/Source/WebCore/page/DOMTimer.h
>index 943865763da0a42948caaedcfe4badafc4d877d5..b9755a795b656ec542348f803f6dca65d69a6d23 100644
>--- a/Source/WebCore/page/DOMTimer.h
>+++ b/Source/WebCore/page/DOMTimer.h
>@@ -92,7 +92,6 @@ private:
>     Seconds m_originalInterval;
>     TimerThrottleState m_throttleState;
>     Seconds m_currentTimerInterval;
>-    Seconds m_nestedTimerInterval;
>     RefPtr<UserGestureToken> m_userGestureTokenToForward;
> };
> 
>diff --git a/Source/WebCore/testing/Internals.cpp b/Source/WebCore/testing/Internals.cpp
>index 64e03d849cb3b8f5ed6551c50e587fe30d1ba755..c4c6454bff74dab69b896775e4ee03d994bb4bde 100644
>--- a/Source/WebCore/testing/Internals.cpp
>+++ b/Source/WebCore/testing/Internals.cpp
>@@ -5021,4 +5021,9 @@ void Internals::testDictionaryLogging()
>     page->diagnosticLoggingClient().logDiagnosticMessageWithValueDictionary("testMessage"_s, "testDescription"_s, dictionary, ShouldSample::No);
> }
> 
>+void Internals::setXHRMaximumIntervalForUserGestureForwarding(XMLHttpRequest& request, double interval)
>+{
>+    request.setMaximumIntervalForUserGestureForwarding(interval);
>+}
>+
> } // namespace WebCore
>diff --git a/Source/WebCore/testing/Internals.h b/Source/WebCore/testing/Internals.h
>index ee64537d249756c56534ed8169e495cedb58efc2..434092401acf5c48d1cf466c6339877460214691 100644
>--- a/Source/WebCore/testing/Internals.h
>+++ b/Source/WebCore/testing/Internals.h
>@@ -815,7 +815,9 @@ public:
>     void processDidResume();
> 
>     void testDictionaryLogging();
>-        
>+
>+    void setXHRMaximumIntervalForUserGestureForwarding(XMLHttpRequest&, double);
>+
> private:
>     explicit Internals(Document&);
>     Document* contextDocument() const;
>diff --git a/Source/WebCore/testing/Internals.idl b/Source/WebCore/testing/Internals.idl
>index f2069efb5ff48c59cb411ff3dcb4fd70b99bde70..00000c627e8ae4671e2d4bb4244fd12324f040f9 100644
>--- a/Source/WebCore/testing/Internals.idl
>+++ b/Source/WebCore/testing/Internals.idl
>@@ -746,4 +746,6 @@ enum CompositingPolicy {
>     void processDidResume();
> 
>     void testDictionaryLogging();
>+
>+    void setXHRMaximumIntervalForUserGestureForwarding(XMLHttpRequest xhr, double interval);
> };
>diff --git a/Source/WebCore/xml/XMLHttpRequest.cpp b/Source/WebCore/xml/XMLHttpRequest.cpp
>index a20e256248e7a156ffbc7a047bd5dac02543762a..2f717c3a1fb31272d08b51d1eee80d8335aa317a 100644
>--- a/Source/WebCore/xml/XMLHttpRequest.cpp
>+++ b/Source/WebCore/xml/XMLHttpRequest.cpp
>@@ -66,6 +66,8 @@
> 
> namespace WebCore {
> 
>+static const Seconds maximumIntervalForUserGestureForwarding { 10_s };
>+
> WTF_MAKE_ISO_ALLOCATED_IMPL(XMLHttpRequest);
> 
> DEFINE_DEBUG_ONLY_GLOBAL(WTF::RefCountedLeakCounter, xmlHttpRequestCounter, ("XMLHttpRequest"));
>@@ -121,6 +123,7 @@ XMLHttpRequest::XMLHttpRequest(ScriptExecutionContext& context)
>     , m_resumeTimer(*this, &XMLHttpRequest::resumeTimerFired)
>     , m_networkErrorTimer(*this, &XMLHttpRequest::networkErrorTimerFired)
>     , m_timeoutTimer(*this, &XMLHttpRequest::didReachTimeout)
>+    , m_maximumIntervalForUserGestureForwarding(maximumIntervalForUserGestureForwarding)
> {
> #ifndef NDEBUG
>     xmlHttpRequestCounter.increment();
>@@ -436,6 +439,7 @@ Optional<ExceptionOr<void>> XMLHttpRequest::prepareToSend()
> ExceptionOr<void> XMLHttpRequest::send(Optional<SendTypes>&& sendType)
> {
>     InspectorInstrumentation::willSendXMLHttpRequest(scriptExecutionContext(), url());
>+    m_userGestureToken = UserGestureIndicator::currentUserGesture();
> 
>     ExceptionOr<void> result;
>     if (!sendType)
>@@ -1089,6 +1093,20 @@ void XMLHttpRequest::didReceiveData(const char* data, int len)
>     }
> }
> 
>+void XMLHttpRequest::dispatchEvent(Event& event)
>+{
>+    if (m_userGestureToken && m_userGestureToken->hasExpired(m_maximumIntervalForUserGestureForwarding))
>+        m_userGestureToken = nullptr;
>+
>+    if (readyState() != DONE || !m_userGestureToken || !m_userGestureToken->processingUserGesture()) {
>+        EventTarget::dispatchEvent(event);
>+        return;
>+    }
>+
>+    UserGestureIndicator gestureIndicator(m_userGestureToken, UserGestureToken::GestureScope::MediaOnly);
>+    EventTarget::dispatchEvent(event);
>+}
>+
> void XMLHttpRequest::dispatchErrorEvents(const AtomicString& type)
> {
>     if (!m_uploadComplete) {
>@@ -1188,4 +1206,9 @@ void XMLHttpRequest::contextDestroyed()
>     ActiveDOMObject::contextDestroyed();
> }
> 
>+void XMLHttpRequest::setMaximumIntervalForUserGestureForwarding(double interval)
>+{
>+    m_maximumIntervalForUserGestureForwarding = Seconds(interval);    
>+}
>+
> } // namespace WebCore
>diff --git a/Source/WebCore/xml/XMLHttpRequest.h b/Source/WebCore/xml/XMLHttpRequest.h
>index 9299f4ce764ba34454d390b7dd9b124ef93b46d3..2da53e5fd5af96b30152494f018e49bab0fe4c81 100644
>--- a/Source/WebCore/xml/XMLHttpRequest.h
>+++ b/Source/WebCore/xml/XMLHttpRequest.h
>@@ -26,6 +26,7 @@
> #include "FormData.h"
> #include "ResourceResponse.h"
> #include "ThreadableLoaderClient.h"
>+#include "UserGestureIndicator.h"
> #include <wtf/URL.h>
> #include "XMLHttpRequestEventTarget.h"
> #include "XMLHttpRequestProgressEventThrottle.h"
>@@ -127,6 +128,8 @@ public:
> 
>     size_t memoryCost() const;
> 
>+    WEBCORE_EXPORT void setMaximumIntervalForUserGestureForwarding(double);
>+
> private:
>     explicit XMLHttpRequest(ScriptExecutionContext&);
> 
>@@ -187,6 +190,9 @@ private:
> 
>     void dispatchErrorEvents(const AtomicString&);
> 
>+    using EventTarget::dispatchEvent;
>+    void dispatchEvent(Event&) override;
>+
>     void resumeTimerFired();
>     Ref<TextResourceDecoder> createDecoder() const;
> 
>@@ -243,6 +249,8 @@ private:
>     MonotonicTime m_sendingTime;
> 
>     Optional<ExceptionCode> m_exceptionCode;
>+    RefPtr<UserGestureToken> m_userGestureToken;
>+    Seconds m_maximumIntervalForUserGestureForwarding;
> };
> 
> inline auto XMLHttpRequest::responseType() const -> ResponseType
>diff --git a/LayoutTests/ChangeLog b/LayoutTests/ChangeLog
>index 218f6d5781da168399c2ff4f488a0ee304b303ed..622aedfeba6b70df511bc2c0d3068b255f3be29d 100644
>--- a/LayoutTests/ChangeLog
>+++ b/LayoutTests/ChangeLog
>@@ -1,3 +1,14 @@
>+2019-04-30  Eric Carlson  <eric.carlson@apple.com>
>+
>+        XMLHttpRequest should propagate user gestures for media playback
>+        https://bugs.webkit.org/show_bug.cgi?id=197428
>+        <rdar://problem/46677392>
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        * http/tests/media/user-gesture-preserved-across-xmlhttprequest-expected.txt: Added.
>+        * http/tests/media/user-gesture-preserved-across-xmlhttprequest.html: Added.
>+
> 2019-04-29  Javier Fernandez  <jfernandez@igalia.com>
> 
>         Update the CSS Text WPT test suite
>diff --git a/LayoutTests/http/tests/media/user-gesture-preserved-across-xmlhttprequest-expected.txt b/LayoutTests/http/tests/media/user-gesture-preserved-across-xmlhttprequest-expected.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..31c854cfe8fdd2145e9ba5e56bb6dfac33c32da7
>--- /dev/null
>+++ b/LayoutTests/http/tests/media/user-gesture-preserved-across-xmlhttprequest-expected.txt
>@@ -0,0 +1,56 @@
>+Test that a user gesture is preserved across XHR and setTimeout.
>+
>+
>+Run!
>+
>+** gesture -> XHR -> timeout -> XHR -> window.open: should fail because XHR only propagates user gesture for media
>+sending XHR, delay = 100
>+EVENT(load): readyState = 4
>+setting timeout, delay = 100
>+sending XHR, delay = 100
>+EVENT(load): readyState = 4
>+EXPECTED (window.open("about:blank") == 'null') OK
>+
>+** gesture -> timeout -> XHR -> timeout -> window.open: should succeed
>+setting timeout, delay = 100
>+sending XHR, delay = 100
>+EVENT(load): readyState = 4
>+setting timeout, delay = 100
>+EXPECTED (window.open("about:blank") != 'null') OK
>+
>+** gesture -> timeout -> XHR -> timeout -> video playback: should succeed
>+EVENT(canplaythrough)
>+setting timeout, delay = 100
>+sending XHR, delay = 100
>+EVENT(load): readyState = 4
>+setting timeout, delay = 100
>+RUN(shouldResolve(mediaElement.play()).then(testComplete, testComplete))
>+Promise resolved OK
>+
>+** gesture -> XHR -> timeout -> XHR -> video playback: should succeed
>+EVENT(canplaythrough)
>+sending XHR, delay = 100
>+EVENT(load): readyState = 4
>+setting timeout, delay = 100
>+sending XHR, delay = 100
>+EVENT(load): readyState = 4
>+RUN(shouldResolve(mediaElement.play()).then(testComplete, testComplete))
>+Promise resolved OK
>+
>+** NO gesture -> XHR -> timeout -> video playback: should fail
>+EVENT(canplaythrough)
>+sending XHR, delay = 100
>+EVENT(load): readyState = 4
>+setting timeout, delay = 100
>+RUN(shouldReject(mediaElement.play()).then(testComplete, testComplete))
>+Promise rejected correctly OK
>+
>+** gesture -> "long" XHR -> video playback: should fail
>+EVENT(canplaythrough)
>+sending XHR, delay = 300
>+EVENT(load): readyState = 4
>+RUN(shouldReject(mediaElement.play()).then(testComplete, testComplete))
>+Promise rejected correctly OK
>+
>+END OF TEST
>+
>diff --git a/LayoutTests/http/tests/media/user-gesture-preserved-across-xmlhttprequest.html b/LayoutTests/http/tests/media/user-gesture-preserved-across-xmlhttprequest.html
>new file mode 100644
>index 0000000000000000000000000000000000000000..82a2e9ba9a26d38372dbe38b97c01b23a866f75b
>--- /dev/null
>+++ b/LayoutTests/http/tests/media/user-gesture-preserved-across-xmlhttprequest.html
>@@ -0,0 +1,166 @@
>+<!DOCTYPE html>
>+<html>
>+<head>
>+    <meta charset='utf-8'>
>+    <title>user-gesture-preserved-across-xmlhttprequest</title>
>+    <script src='/media-resources/media-file.js'></script>
>+    <script src='/media-resources/video-test.js'></script>
>+
>+    <script>
>+        let autoRun = true;
>+
>+        if (window.testRunner) {
>+           testRunner.dumpAsText();
>+           testRunner.waitUntilDone();
>+           testRunner.setCanOpenWindows(true);
>+        }
>+
>+        function doXHR(delay, timeout, completionHandler)
>+        {
>+            var xhr = new XMLHttpRequest();
>+            if (window.internals)
>+                window.internals.setXHRMaximumIntervalForUserGestureForwarding(xhr, timeout);
>+
>+            xhr.open('GET', `/xmlhttprequest/resources/download-with-delay.php?iteration=1&delay=${delay}`, true);
>+
>+            xhr.onload = (evt) => {
>+                consoleWrite(`EVENT(load): readyState = ${xhr.readyState}`);
>+                if (xhr.readyState === 4) {
>+                    if (xhr.status === 200) {
>+                        completionHandler();
>+                    } else {
>+                        logResult(Failed, `xhr.onload, status = ${xhr.statusText}`);
>+                    }
>+                }
>+            };
>+
>+            xhr.onerror = (err) => {
>+                logResult(Failed, `xhr.onerror, status = ${xhr.statusText}`);
>+            };
>+
>+            xhr.send(null);
>+        }
>+
>+        function testComplete()
>+        {
>+            if (autoRun)
>+                nextTest();
>+        }
>+
>+        function runTest(test)
>+        {
>+            if (!test.sequence.length) {
>+                switch (test.action) {
>+                case 'play':
>+                    if (test.success)
>+                        run("shouldResolve(mediaElement.play()).then(testComplete, testComplete)");
>+                    else
>+                        run("shouldReject(mediaElement.play()).then(testComplete, testComplete)");
>+                    break;
>+
>+                case 'popup':
>+                    if (window.internals)
>+                        internals.settings.setJavaScriptCanOpenWindowsAutomatically(false);
>+                    testExpected('window.open("about:blank")', null, test.success ? '!=' : '==');
>+                    testComplete();
>+                    break;
>+                }
>+                return;
>+            }
>+
>+            let command = test.sequence.shift().trim().split(' ');
>+            let delay = command[0];
>+            let method = command[1].toLowerCase();
>+
>+            switch (method) {
>+            case 'xhr':
>+                consoleWrite(`sending XHR, delay = ${delay}`);
>+                doXHR(delay, test.timeout || 0.6, () => runTest(test));
>+                break;
>+            case 'timeout':
>+                consoleWrite(`setting timeout, delay = ${delay}`);
>+                setTimeout(() => { runTest(test); }, delay);
>+                break;
>+            }
>+
>+        }
>+
>+        let tests = [
>+            { title : 'gesture -> XHR -> timeout -> XHR -> window.open: should fail because XHR only propagates user gesture for media',
>+                action : 'popup', withkey : true,  success : false,  sequence : ['100 XHR', '100 timeout', '100 xhr'] },
>+
>+            { title : 'gesture -> timeout -> XHR -> timeout -> window.open: should succeed',
>+                action : 'popup', withkey : true,  success : true,  sequence : ['100 timeout', '100 xhr', '100 timeout'] },
>+
>+            { title : 'gesture -> timeout -> XHR -> timeout -> video playback: should succeed',
>+                action : 'play',  withkey : true,  success : true,  sequence : ['100 timeout', '100 XHR', '100 timeout'] },
>+
>+            { title : 'gesture -> XHR -> timeout -> XHR -> video playback: should succeed',
>+                action : 'play',  withkey : true,  success : true,  sequence : ['100 XHR', '100 timeout', '100 xhr'] },
>+
>+            { title : 'NO gesture -> XHR -> timeout -> video playback: should fail',
>+                action : 'play',  withkey : false,  success : false,  sequence : ['100 XHR', '100 timeout'] },
>+
>+            { title : 'gesture -> "long" XHR -> video playback: should fail',
>+                action : 'play',  withkey : false,  success : false,  timeout : 0.1, sequence : ['300 XHR'] },
>+        ];
>+
>+        function nextTest()
>+        {
>+            if (!tests.length) {
>+                consoleWrite('');
>+                endTest()
>+                return;
>+            }
>+
>+            let test = tests.shift();
>+            let action = () => { runTest(test) };
>+            consoleWrite(`<br>** ${test.title}`);
>+            switch (test.action) {
>+            case 'play':
>+                let container = document.getElementById('parent');
>+                if (container.firstChild)
>+                    container.removeChild(container.firstChild);
>+
>+                mediaElement = document.createElement('video');
>+                if (window.internals)
>+                    internals.setMediaElementRestrictions(mediaElement, 'RequireUserGestureForAudioRateChange');
>+
>+                mediaElement.src = "/media-resources/content/" + findMediaFile("video", "test");
>+                mediaElement.controls = 1;
>+                container.appendChild(mediaElement);
>+                waitForEvent('canplaythrough', event => {
>+                    if (test.withkey)
>+                        runWithKeyDown(action);
>+                    else
>+                        action();
>+                });
>+
>+                break;
>+
>+            case 'popup':
>+                if (test.withkey)
>+                    runWithKeyDown(action);
>+                else
>+                    action();
>+                break;
>+            }
>+        }
>+
>+        function start()
>+        {
>+            if (autoRun)
>+                nextTest();
>+        }
>+
>+    </script>
>+</head>
>+
>+<body onload="start()">
>+    <p>Test that a user gesture is preserved across XHR and setTimeout.</p>
>+    <div id='parent'></div>
>+    <button onclick="nextTest()">Run!</button><br>
>+    <pre id='consoleLog'></pre>
>+</body>
>+</html>
>+

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Attachments on bug 197428: 368599 | 368612 | 368613 | 368614