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Unified Diff: third_party/WebKit/Source/core/html/HTMLMediaElementEventListenersTest.cpp

Issue 2729613007: Fixing a crash in MediaCustomControlsFullscreenDetector when the page is destroyed (Closed)
Patch Set: . Created 3 years, 10 months ago
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Index: third_party/WebKit/Source/core/html/HTMLMediaElementEventListenersTest.cpp
diff --git a/third_party/WebKit/Source/core/html/HTMLMediaElementEventListenersTest.cpp b/third_party/WebKit/Source/core/html/HTMLMediaElementEventListenersTest.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..c73b0a8d77ad89d1141d91cb1dc8e78d0ce19e51
--- /dev/null
+++ b/third_party/WebKit/Source/core/html/HTMLMediaElementEventListenersTest.cpp
@@ -0,0 +1,176 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "core/html/HTMLMediaElement.h"
+
+#include "core/dom/DocumentUserGestureToken.h"
+#include "core/dom/Fullscreen.h"
+#include "core/html/HTMLVideoElement.h"
+#include "core/html/MediaCustomControlsFullscreenDetector.h"
+#include "core/html/shadow/MediaControls.h"
+#include "core/loader/EmptyClients.h"
+#include "core/page/NetworkStateNotifier.h"
+#include "core/testing/DummyPageHolder.h"
+#include "platform/UserGestureIndicator.h"
+#include "platform/testing/EmptyWebMediaPlayer.h"
+#include "platform/testing/UnitTestHelpers.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace blink {
+
+namespace {
+
+class MockWebMediaPlayer : public EmptyWebMediaPlayer {
mlamouri (slow - plz ping) 2017/03/07 17:50:16 final?
Zhiqiang Zhang (Slow) 2017/03/07 18:29:02 Done.
+ public:
+ MOCK_METHOD1(setIsEffectivelyFullscreen, void(bool));
+};
+
+class StubLocalFrameClient : public EmptyLocalFrameClient {
+ public:
+ static StubLocalFrameClient* create() { return new StubLocalFrameClient; }
+
+ std::unique_ptr<WebMediaPlayer> createWebMediaPlayer(
+ HTMLMediaElement&,
+ const WebMediaPlayerSource&,
+ WebMediaPlayerClient*) override {
+ return WTF::wrapUnique(new MockWebMediaPlayer());
+ }
+};
+
+} // anonymous namespace
+
+class HTMLMediaElementEventListenersTest : public ::testing::Test {
+ protected:
+ void SetUp() override {
+ m_pageHolder = DummyPageHolder::create(IntSize(800, 600), nullptr,
+ StubLocalFrameClient::create());
+ }
+
+ Document& document() { return m_pageHolder->document(); }
+ void destroyDocument() { m_pageHolder.reset(); }
+ HTMLVideoElement* video() {
+ return toHTMLVideoElement(document().querySelector("video"));
+ }
+ MockWebMediaPlayer* webMediaPlayer() {
+ return static_cast<MockWebMediaPlayer*>(video()->webMediaPlayer());
+ }
+ MediaControls* controls() { return video()->mediaControls(); }
+ void simulateReadyState(HTMLMediaElement::ReadyState state) {
+ video()->setReadyState(state);
+ }
+ MediaCustomControlsFullscreenDetector* fullscreenDetector() {
+ return video()->m_customControlsFullscreenDetector;
+ }
+ bool isCheckViewportIntersectionTimerActive(
+ MediaCustomControlsFullscreenDetector* detector) {
+ return detector->m_checkViewportIntersectionTimer.isActive();
+ }
+
+ private:
+ std::unique_ptr<DummyPageHolder> m_pageHolder;
+};
+
+using ::testing::_;
+using ::testing::Invoke;
mlamouri (slow - plz ping) 2017/03/07 17:50:16 Maybe this should be moved above the anonymous nam
Zhiqiang Zhang (Slow) 2017/03/07 18:29:02 Done.
+
+TEST_F(HTMLMediaElementEventListenersTest, RemovingFromDocumentCollectsAll) {
+ EXPECT_EQ(video(), nullptr);
+ document().body()->setInnerHTML("<body><video controls></video></body>");
+ EXPECT_NE(video(), nullptr);
+ EXPECT_TRUE(video()->hasEventListeners());
+ EXPECT_NE(controls(), nullptr);
+ EXPECT_TRUE(document().hasEventListeners());
+
+ WeakPersistent<HTMLVideoElement> weakPersistentVideo = video();
+ WeakPersistent<MediaControls> weakPersistentControls = controls();
+ {
+ Persistent<HTMLVideoElement> persistentVideo = video();
+ document().body()->setInnerHTML("");
+
+ // When removed from the document, the event listeners should have been
+ // dropped.
+ EXPECT_FALSE(document().hasEventListeners());
+ // The video element should still have some event listeners.
+ EXPECT_TRUE(persistentVideo->hasEventListeners());
+ }
+
+ ThreadState::current()->collectAllGarbage();
+
+ // They have been GC'd.
+ EXPECT_EQ(weakPersistentVideo, nullptr);
+ EXPECT_EQ(weakPersistentControls, nullptr);
+}
+
+TEST_F(HTMLMediaElementEventListenersTest,
+ ReInsertingInDocumentCollectsControls) {
+ EXPECT_EQ(video(), nullptr);
+ document().body()->setInnerHTML("<body><video controls></video></body>");
+ EXPECT_NE(video(), nullptr);
+ EXPECT_TRUE(video()->hasEventListeners());
+ EXPECT_NE(controls(), nullptr);
+ EXPECT_TRUE(document().hasEventListeners());
+
+ // This should be a no-op. We keep a reference on the VideoElement to avoid an
+ // unexpected GC.
+ {
+ Persistent<HTMLVideoElement> videoHolder = video();
+ document().body()->removeChild(video());
+ document().body()->appendChild(videoHolder.get());
+ }
+
+ EXPECT_TRUE(document().hasEventListeners());
+ EXPECT_TRUE(video()->hasEventListeners());
+
+ ThreadState::current()->collectAllGarbage();
+
+ EXPECT_NE(video(), nullptr);
+ EXPECT_NE(controls(), nullptr);
+ EXPECT_EQ(controls(), video()->mediaControls());
+}
+
+TEST_F(HTMLMediaElementEventListenersTest,
+ FullscreenDetectorTimerCancelledOnContextDestroy) {
+ EXPECT_EQ(video(), nullptr);
+ document().body()->setInnerHTML("<body><video></video</body>");
+ video()->setSrc("http://example.com");
+
+ testing::runPendingTasks();
+
+ EXPECT_NE(webMediaPlayer(), nullptr);
+
+ // Set ReadyState as HaveMetadata and go fullscreen, so the timer is fired.
+ EXPECT_NE(video(), nullptr);
+ simulateReadyState(HTMLMediaElement::kHaveMetadata);
+ UserGestureIndicator gestureIndicator(
+ DocumentUserGestureToken::create(&document()));
+ Fullscreen::requestFullscreen(*video());
+ Fullscreen::from(document()).didEnterFullscreen();
+
+ testing::runPendingTasks();
+
+ Persistent<Document> persistentDocument = &document();
+ Persistent<MediaCustomControlsFullscreenDetector> detector =
+ fullscreenDetector();
+
+ std::vector<bool> observedResults;
+
+ ON_CALL(*webMediaPlayer(), setIsEffectivelyFullscreen(_))
+ .WillByDefault(Invoke(
+ [&](bool isFullscreen) { observedResults.push_back(isFullscreen); }));
+
+ destroyDocument();
+
+ testing::runPendingTasks();
+
+ // Document should not have listeners as the ExecutionContext is destroyed.
+ EXPECT_FALSE(persistentDocument->hasEventListeners());
+ // The timer should be cancelled when the ExecutionContext is destroyed.
+ EXPECT_FALSE(isCheckViewportIntersectionTimerActive(detector));
+ // Should only notify the false value when ExecutionContext is destroyed.
+ EXPECT_EQ(1u, observedResults.size());
+ EXPECT_FALSE(observedResults[0]);
+}
+
+} // namespace blink
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