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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <memory>
#include <vector>
#include "build/build_config.h"
#include "base/path_service.h"
#include "content/browser/media/media_browsertest.h"
#include "content/browser/media/media_web_contents_observer.h"
#include "content/browser/renderer_host/render_view_host_impl.h"
#include "content/browser/renderer_host/render_widget_host_impl.h"
#include "content/public/browser/web_contents_observer.h"
#include "content/public/common/content_paths.h"
#include "content/public/common/content_switches.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/browser_test_utils.h"
#include "content/public/test/content_browser_test.h"
#include "content/public/test/content_browser_test_utils.h"
#include "content/shell/browser/shell.h"
namespace content {
namespace {
enum class FullscreenTestEvent {
kEnterFullscreen, // Some element in the tab goes fullscreen
kLeaveFullscreen, // Tab's element stopped being fullscreen
kEffectivelyFullscreen, // <video> gets effective fullscreen flag set.
kNotEffectivelyFullscreen, // <video> gets effective fullscreen flag unset.
kInvalidEvent = 0xBADF00D
};
class FullscreenEventsRecorder : public WebContentsObserver {
public:
explicit FullscreenEventsRecorder(WebContents* web_contents)
: WebContentsObserver(web_contents) {}
FullscreenEventsRecorder(const FullscreenEventsRecorder&) = delete;
FullscreenEventsRecorder& operator=(const FullscreenEventsRecorder&) = delete;
void MediaEffectivelyFullscreenChanged(bool value) override {
AddEvent(value ? FullscreenTestEvent::kEffectivelyFullscreen
: FullscreenTestEvent::kNotEffectivelyFullscreen);
}
void DidToggleFullscreenModeForTab(bool entered_fullscreen,
bool will_cause_resize) override {
AddEvent(entered_fullscreen ? FullscreenTestEvent::kEnterFullscreen
: FullscreenTestEvent::kLeaveFullscreen);
}
void Wait(size_t events_count) {
if (events_.size() >= events_count)
return;
expected_event_count_ = events_count;
run_loop_ = std::make_unique<base::RunLoop>();
run_loop_->Run();
}
FullscreenTestEvent event(size_t index) {
if (index >= events_.size())
return FullscreenTestEvent::kInvalidEvent;
return events_[index];
}
private:
std::unique_ptr<base::RunLoop> run_loop_;
size_t expected_event_count_ = 0;
FullscreenTestEvent last_event_ = FullscreenTestEvent::kInvalidEvent;
std::vector<FullscreenTestEvent> events_;
void AddEvent(FullscreenTestEvent e) {
if (last_event_ == e)
return;
events_.push_back(e);
last_event_ = e;
if (events_.size() == expected_event_count_ && run_loop_)
run_loop_->Quit();
}
};
} // namespace
class FullscreenDetectionTest : public ContentBrowserTest {
public:
void SetUpOnMainThread() override {
ContentBrowserTest::SetUpOnMainThread();
base::FilePath test_data_dir;
ASSERT_TRUE(base::PathService::Get(content::DIR_TEST_DATA, &test_data_dir));
embedded_test_server()->ServeFilesFromDirectory(test_data_dir);
ASSERT_TRUE(embedded_test_server()->Start());
}
};
// The most basic test possible and most obvious case of fullscreeness.
// A <video> itself goes fullscreen, and it's marked as effectively-fullscreen.
// Once the <video> exits fullscreen mode, it's not effectively-fullscreen
// any more.
IN_PROC_BROWSER_TEST_F(FullscreenDetectionTest, RegularVideoTagFullscreen) {
auto* web_contents = shell()->web_contents();
EXPECT_TRUE(NavigateToURL(
shell(), embedded_test_server()->GetURL("/media/fullscreen.html")));
FullscreenEventsRecorder recorder(web_contents);
ASSERT_TRUE(content::ExecJs(web_contents, "makeFullscreen('small_video')"));
recorder.Wait(2);
EXPECT_EQ(recorder.event(0), FullscreenTestEvent::kEnterFullscreen);
EXPECT_EQ(recorder.event(1), FullscreenTestEvent::kEffectivelyFullscreen);
EXPECT_TRUE(content::ExecJs(web_contents, "exitFullscreen()"));
recorder.Wait(4);
EXPECT_EQ(recorder.event(2), FullscreenTestEvent::kLeaveFullscreen);
EXPECT_EQ(recorder.event(3), FullscreenTestEvent::kNotEffectivelyFullscreen);
}
// A <div>, containing a big <video>, goes fullscreen.
// This div effectively become the viewport.
// Since the <video> occupies most of the <div>, and thus most of the screen,
// it's marked as effectively-fullscreen.
// Once the <div> exits fullscreen mode, <video> is not effectively-fullscreen
// any more.
IN_PROC_BROWSER_TEST_F(FullscreenDetectionTest, EncompassingDivFullscreen) {
auto* web_contents = shell()->web_contents();
EXPECT_TRUE(NavigateToURL(
shell(), embedded_test_server()->GetURL("/media/fullscreen.html")));
FullscreenEventsRecorder recorder(web_contents);
ASSERT_TRUE(content::ExecJs(web_contents, "makeFullscreen('big_div')"));
recorder.Wait(2);
EXPECT_EQ(recorder.event(0), FullscreenTestEvent::kEnterFullscreen);
EXPECT_EQ(recorder.event(1), FullscreenTestEvent::kEffectivelyFullscreen);
ASSERT_TRUE(content::ExecJs(web_contents, "exitFullscreen()"));
recorder.Wait(4);
EXPECT_EQ(recorder.event(2), FullscreenTestEvent::kLeaveFullscreen);
EXPECT_EQ(recorder.event(3), FullscreenTestEvent::kNotEffectivelyFullscreen);
}
// A <div>, containing a <video>, goes fullscreen.
// But the <video> occupies a small part of <div> (and viewport), and
// it is not enough to be counted as effectively-fullscreen.
IN_PROC_BROWSER_TEST_F(FullscreenDetectionTest, EncompassingDivNotFullscreen) {
auto* web_contents = shell()->web_contents();
EXPECT_TRUE(NavigateToURL(
shell(), embedded_test_server()->GetURL("/media/fullscreen.html")));
FullscreenEventsRecorder recorder(web_contents);
#if BUILDFLAG(IS_ANDROID)
RenderWidgetHostImpl* rwh = static_cast<RenderWidgetHostImpl*>(
web_contents->GetRenderViewHost()->GetWidget());
gfx::Size compositor_viewport_pixel_rect =
rwh->GetVisualProperties().compositor_viewport_pixel_rect.size();
#endif
ASSERT_TRUE(content::ExecJs(web_contents, "makeFullscreen('small_div')"));
recorder.Wait(1);
EXPECT_EQ(recorder.event(0), FullscreenTestEvent::kEnterFullscreen);
#if BUILDFLAG(IS_ANDROID)
// Android fullscreen transitions causes layout changes, which triggers
// SurfaceSync. We should confirm the fullscreen frames have been produced
// before exiting.
RenderFrameSubmissionObserver rfm_observer(web_contents);
while (rwh->GetVisualProperties().compositor_viewport_pixel_rect.size() ==
compositor_viewport_pixel_rect) {
rfm_observer.WaitForMetadataChange();
}
viz::LocalSurfaceId target = static_cast<RenderWidgetHostViewBase*>(
web_contents->GetRenderWidgetHostView())
->GetLocalSurfaceId();
while (!rfm_observer.LastRenderFrameMetadata()
.local_surface_id->IsSameOrNewerThan(target)) {
rfm_observer.WaitForMetadataChange();
}
#endif
ASSERT_TRUE(content::ExecJs(web_contents, "exitFullscreen()"));
recorder.Wait(2);
EXPECT_EQ(recorder.event(1), FullscreenTestEvent::kLeaveFullscreen);
}
// A <div>, containing a <video>, goes fullscreen.
// The test changes size of the <video> relative to the viewport and observes
// how it gets and looses effectively-fullscreen status.
// This somewhat emulates YT scrolling in the fullscreen mode.
IN_PROC_BROWSER_TEST_F(FullscreenDetectionTest, VideoTagSizeChange) {
auto* web_contents = shell()->web_contents();
EXPECT_TRUE(NavigateToURL(
shell(), embedded_test_server()->GetURL("/media/fullscreen.html")));
FullscreenEventsRecorder recorder(web_contents);
ASSERT_TRUE(content::ExecJs(web_contents, "makeFullscreen('small_div')"));
recorder.Wait(1);
EXPECT_EQ(recorder.event(0), FullscreenTestEvent::kEnterFullscreen);
ASSERT_TRUE(content::ExecJs(web_contents, "makeBig('small_video')"));
recorder.Wait(2);
EXPECT_EQ(recorder.event(1), FullscreenTestEvent::kEffectivelyFullscreen);
ASSERT_TRUE(content::ExecJs(web_contents, "makeSmall('small_video')"));
recorder.Wait(3);
EXPECT_EQ(recorder.event(2), FullscreenTestEvent::kNotEffectivelyFullscreen);
ASSERT_TRUE(content::ExecJs(web_contents, "makePortrait('small_video')"));
recorder.Wait(4);
EXPECT_EQ(recorder.event(3), FullscreenTestEvent::kEffectivelyFullscreen);
ASSERT_TRUE(content::ExecJs(web_contents, "exitFullscreen()"));
recorder.Wait(5);
EXPECT_EQ(recorder.event(4), FullscreenTestEvent::kLeaveFullscreen);
}
// Test how attaching/detaching the <video> affects its fullscreen status.
IN_PROC_BROWSER_TEST_F(FullscreenDetectionTest, DetachAttachDuringFullscreen) {
auto* web_contents = shell()->web_contents();
EXPECT_TRUE(NavigateToURL(
shell(), embedded_test_server()->GetURL("/media/fullscreen.html")));
FullscreenEventsRecorder recorder(web_contents);
ASSERT_TRUE(content::ExecJs(web_contents, "makeFullscreen('big_div')"));
recorder.Wait(2);
EXPECT_EQ(recorder.event(0), FullscreenTestEvent::kEnterFullscreen);
EXPECT_EQ(recorder.event(1), FullscreenTestEvent::kEffectivelyFullscreen);
ASSERT_TRUE(content::ExecJs(web_contents, "detach('big_video')"));
recorder.Wait(3);
EXPECT_EQ(recorder.event(2), FullscreenTestEvent::kNotEffectivelyFullscreen);
ASSERT_TRUE(content::ExecJs(web_contents, "attach_to('big_div')"));
recorder.Wait(4);
EXPECT_EQ(recorder.event(3), FullscreenTestEvent::kEffectivelyFullscreen);
ASSERT_TRUE(content::ExecJs(web_contents, "exitFullscreen()"));
recorder.Wait(6);
EXPECT_EQ(recorder.event(4), FullscreenTestEvent::kLeaveFullscreen);
EXPECT_EQ(recorder.event(5), FullscreenTestEvent::kNotEffectivelyFullscreen);
}
// The test changes visibility of the <video> and observes
// how it gets and loses effectively-fullscreen status.
// TODO(crbug.com/40857652): Re-enable this test
#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_ANDROID)
#define MAYBE_HideVideoTag DISABLED_HideVideoTag
#else
#define MAYBE_HideVideoTag HideVideoTag
#endif
IN_PROC_BROWSER_TEST_F(FullscreenDetectionTest, MAYBE_HideVideoTag) {
auto* web_contents = shell()->web_contents();
EXPECT_TRUE(NavigateToURL(
shell(), embedded_test_server()->GetURL("/media/fullscreen.html")));
FullscreenEventsRecorder recorder(web_contents);
ASSERT_TRUE(content::ExecJs(web_contents, "makeFullscreen('big_div')"));
recorder.Wait(2);
EXPECT_EQ(recorder.event(0), FullscreenTestEvent::kEnterFullscreen);
EXPECT_EQ(recorder.event(1), FullscreenTestEvent::kEffectivelyFullscreen);
ASSERT_TRUE(content::ExecJs(web_contents, "hide('big_video')"));
recorder.Wait(3);
EXPECT_EQ(recorder.event(2), FullscreenTestEvent::kNotEffectivelyFullscreen);
ASSERT_TRUE(content::ExecJs(web_contents, "makeBig('big_video')"));
recorder.Wait(4);
EXPECT_EQ(recorder.event(3), FullscreenTestEvent::kEffectivelyFullscreen);
ASSERT_TRUE(content::ExecJs(web_contents, "exitFullscreen()"));
recorder.Wait(6);
EXPECT_EQ(recorder.event(4), FullscreenTestEvent::kLeaveFullscreen);
EXPECT_EQ(recorder.event(5), FullscreenTestEvent::kNotEffectivelyFullscreen);
}
} // namespace content
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