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// Copyright (c) 2012 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 "ash/wm/video_detector.h"
#include "ash/shell.h"
#include "ash/test/ash_test_base.h"
#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "base/time.h"
#include "third_party/skia/include/core/SkColor.h"
#include "ui/aura/client/window_types.h"
#include "ui/aura/root_window.h"
#include "ui/aura/test/test_windows.h"
#include "ui/aura/window.h"
#include "ui/gfx/rect.h"
namespace ash {
namespace test {
// Implementation that just counts the number of times we've been told that a
// video is playing.
class TestVideoDetectorObserver : public VideoDetectorObserver {
public:
TestVideoDetectorObserver() : num_invocations_(0) {}
int num_invocations() const { return num_invocations_; }
void reset_stats() { num_invocations_ = 0; }
// VideoDetectorObserver implementation.
virtual void OnVideoDetected() OVERRIDE { num_invocations_++; }
private:
// Number of times that OnVideoDetected() has been called.
int num_invocations_;
DISALLOW_COPY_AND_ASSIGN(TestVideoDetectorObserver);
};
class VideoDetectorTest : public AshTestBase {
public:
VideoDetectorTest() {}
virtual ~VideoDetectorTest() {}
virtual void SetUp() OVERRIDE {
AshTestBase::SetUp();
observer_.reset(new TestVideoDetectorObserver);
detector_ = Shell::GetInstance()->video_detector();
detector_->AddObserver(observer_.get());
now_ = base::TimeTicks::Now();
detector_->set_now_for_test(now_);
}
protected:
// Move |detector_|'s idea of the current time forward by |delta|.
void AdvanceTime(base::TimeDelta delta) {
now_ += delta;
detector_->set_now_for_test(now_);
}
VideoDetector* detector_; // not owned
scoped_ptr<TestVideoDetectorObserver> observer_;
base::TimeTicks now_;
private:
DISALLOW_COPY_AND_ASSIGN(VideoDetectorTest);
};
TEST_F(VideoDetectorTest, Basic) {
gfx::Rect window_bounds(gfx::Point(), gfx::Size(1024, 768));
scoped_ptr<aura::Window> window(
aura::test::CreateTestWindow(SK_ColorRED, 12345, window_bounds, NULL));
// Send enough updates, but make them be too small to trigger detection.
gfx::Rect update_region(
gfx::Point(),
gfx::Size(VideoDetector::kMinUpdateWidth - 1,
VideoDetector::kMinUpdateHeight));
for (int i = 0; i < VideoDetector::kMinFramesPerSecond; ++i)
detector_->OnWindowPaintScheduled(window.get(), update_region);
EXPECT_EQ(0, observer_->num_invocations());
// Send not-quite-enough adaquately-sized updates.
observer_->reset_stats();
AdvanceTime(base::TimeDelta::FromSeconds(2));
update_region.set_size(
gfx::Size(VideoDetector::kMinUpdateWidth,
VideoDetector::kMinUpdateHeight));
for (int i = 0; i < VideoDetector::kMinFramesPerSecond - 1; ++i)
detector_->OnWindowPaintScheduled(window.get(), update_region);
EXPECT_EQ(0, observer_->num_invocations());
// We should get notified after the next update, but not in response to
// additional updates.
detector_->OnWindowPaintScheduled(window.get(), update_region);
EXPECT_EQ(1, observer_->num_invocations());
detector_->OnWindowPaintScheduled(window.get(), update_region);
EXPECT_EQ(1, observer_->num_invocations());
// Spread out the frames over two seconds; we shouldn't detect video.
observer_->reset_stats();
AdvanceTime(base::TimeDelta::FromSeconds(2));
for (int i = 0; i < VideoDetector::kMinFramesPerSecond - 1; ++i)
detector_->OnWindowPaintScheduled(window.get(), update_region);
AdvanceTime(base::TimeDelta::FromSeconds(1));
for (int i = 0; i < VideoDetector::kMinFramesPerSecond - 1; ++i)
detector_->OnWindowPaintScheduled(window.get(), update_region);
EXPECT_EQ(0, observer_->num_invocations());
}
TEST_F(VideoDetectorTest, WindowNotVisible) {
gfx::Rect window_bounds(gfx::Point(), gfx::Size(1024, 768));
scoped_ptr<aura::Window> window(
aura::test::CreateTestWindow(SK_ColorRED, 12345, window_bounds, NULL));
// Reparent the window to the root to make sure that visibility changes aren't
// animated.
Shell::GetRootWindow()->AddChild(window.get());
// We shouldn't report video that's played in a hidden window.
window->Hide();
gfx::Rect update_region(
gfx::Point(),
gfx::Size(VideoDetector::kMinUpdateWidth,
VideoDetector::kMinUpdateHeight));
for (int i = 0; i < VideoDetector::kMinFramesPerSecond; ++i)
detector_->OnWindowPaintScheduled(window.get(), update_region);
EXPECT_EQ(0, observer_->num_invocations());
// Make the window visible and send more updates.
observer_->reset_stats();
AdvanceTime(base::TimeDelta::FromSeconds(2));
window->Show();
for (int i = 0; i < VideoDetector::kMinFramesPerSecond; ++i)
detector_->OnWindowPaintScheduled(window.get(), update_region);
EXPECT_EQ(1, observer_->num_invocations());
// We also shouldn't report video in a window that's fully offscreen.
observer_->reset_stats();
AdvanceTime(base::TimeDelta::FromSeconds(2));
gfx::Rect offscreen_bounds(
gfx::Point(Shell::GetRootWindow()->bounds().width(), 0),
window_bounds.size());
window->SetBounds(offscreen_bounds);
ASSERT_EQ(offscreen_bounds, window->bounds());
for (int i = 0; i < VideoDetector::kMinFramesPerSecond; ++i)
detector_->OnWindowPaintScheduled(window.get(), update_region);
EXPECT_EQ(0, observer_->num_invocations());
}
TEST_F(VideoDetectorTest, MultipleWindows) {
// Create two windows.
gfx::Rect window_bounds(gfx::Point(), gfx::Size(1024, 768));
scoped_ptr<aura::Window> window1(
aura::test::CreateTestWindow(SK_ColorRED, 12345, window_bounds, NULL));
scoped_ptr<aura::Window> window2(
aura::test::CreateTestWindow(SK_ColorBLUE, 23456, window_bounds, NULL));
// Even if there's video playing in both, the observer should only receive a
// single notification.
gfx::Rect update_region(
gfx::Point(),
gfx::Size(VideoDetector::kMinUpdateWidth,
VideoDetector::kMinUpdateHeight));
for (int i = 0; i < VideoDetector::kMinFramesPerSecond; ++i)
detector_->OnWindowPaintScheduled(window1.get(), update_region);
for (int i = 0; i < VideoDetector::kMinFramesPerSecond; ++i)
detector_->OnWindowPaintScheduled(window2.get(), update_region);
EXPECT_EQ(1, observer_->num_invocations());
}
// Test that the observer receives repeated notifications.
TEST_F(VideoDetectorTest, RepeatedNotifications) {
gfx::Rect window_bounds(gfx::Point(), gfx::Size(1024, 768));
scoped_ptr<aura::Window> window(
aura::test::CreateTestWindow(SK_ColorRED, 12345, window_bounds, NULL));
gfx::Rect update_region(
gfx::Point(),
gfx::Size(VideoDetector::kMinUpdateWidth,
VideoDetector::kMinUpdateHeight));
for (int i = 0; i < VideoDetector::kMinFramesPerSecond; ++i)
detector_->OnWindowPaintScheduled(window.get(), update_region);
EXPECT_EQ(1, observer_->num_invocations());
// Let enough time pass that a second notification should be sent.
observer_->reset_stats();
AdvanceTime(base::TimeDelta::FromSeconds(
static_cast<int64>(VideoDetector::kNotifyIntervalSec + 1)));
for (int i = 0; i < VideoDetector::kMinFramesPerSecond; ++i)
detector_->OnWindowPaintScheduled(window.get(), update_region);
EXPECT_EQ(1, observer_->num_invocations());
}
} // namespace test
} // namespace ash
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