ash/wm/video_detector_unittest.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ash/wm/video_detector.h"
   6
   7 #include "ash/shell.h"
   8 #include "ash/test/ash_test_base.h"
   9 #include "ash/wm/window_state.h"
  10 #include "ash/wm/wm_event.h"
  11 #include "base/compiler_specific.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "base/time/time.h"
  14 #include "third_party/skia/include/core/SkColor.h"
  15 #include "ui/aura/client/aura_constants.h"
  16 #include "ui/aura/test/test_windows.h"
  17 #include "ui/aura/window.h"
  18 #include "ui/aura/window_event_dispatcher.h"
  19 #include "ui/gfx/geometry/rect.h"
  20 #include "ui/wm/public/window_types.h"
  21
  22 namespace ash {
  23 namespace test {
  24
  25 // Implementation that just counts the number of times we've been told that a
  26 // video is playing.
  27 class TestVideoDetectorObserver : public VideoDetectorObserver {
  28  public:
  29   TestVideoDetectorObserver() : num_invocations_(0),
  30                                 num_fullscreens_(0),
  31                                 num_not_fullscreens_(0) {}
  32
  33   int num_invocations() const { return num_invocations_; }
  34   int num_fullscreens() const { return num_fullscreens_; }
  35   int num_not_fullscreens() const { return num_not_fullscreens_; }
  36   void reset_stats() {
  37     num_invocations_ = 0;
  38     num_fullscreens_ = 0;
  39     num_not_fullscreens_ = 0;
  40   }
  41
  42   // VideoDetectorObserver implementation.
  43   void OnVideoDetected(bool is_fullscreen) override {
  44     num_invocations_++;
  45     if (is_fullscreen)
  46       num_fullscreens_++;
  47     else
  48       num_not_fullscreens_++;
  49   }
  50
  51  private:
  52   // Number of times that OnVideoDetected() has been called.
  53   int num_invocations_;
  54   // Number of times that OnVideoDetected() has been called with is_fullscreen
  55   // == true.
  56   int num_fullscreens_;
  57   // Number of times that OnVideoDetected() has been called with is_fullscreen
  58   // == false.
  59   int num_not_fullscreens_;
  60
  61   DISALLOW_COPY_AND_ASSIGN(TestVideoDetectorObserver);
  62 };
  63
  64 class VideoDetectorTest : public AshTestBase {
  65  public:
  66   VideoDetectorTest() {}
  67   ~VideoDetectorTest() override {}
  68
  69   void SetUp() override {
  70     AshTestBase::SetUp();
  71     observer_.reset(new TestVideoDetectorObserver);
  72     detector_ = Shell::GetInstance()->video_detector();
  73     detector_->AddObserver(observer_.get());
  74
  75     now_ = base::TimeTicks::Now();
  76     detector_->set_now_for_test(now_);
  77   }
  78
  79   void TearDown() override {
  80     detector_->RemoveObserver(observer_.get());
  81     AshTestBase::TearDown();
  82   }
  83
  84  protected:
  85   // Move |detector_|'s idea of the current time forward by |delta|.
  86   void AdvanceTime(base::TimeDelta delta) {
  87     now_ += delta;
  88     detector_->set_now_for_test(now_);
  89   }
  90
  91   VideoDetector* detector_;  // not owned
  92
  93   scoped_ptr<TestVideoDetectorObserver> observer_;
  94
  95   base::TimeTicks now_;
  96
  97  private:
  98   DISALLOW_COPY_AND_ASSIGN(VideoDetectorTest);
  99 };
 100
 101 TEST_F(VideoDetectorTest, Basic) {
 102   gfx::Rect window_bounds(gfx::Point(), gfx::Size(1024, 768));
 103   scoped_ptr<aura::Window> window(
 104       CreateTestWindowInShell(SK_ColorRED, 12345, window_bounds));
 105
 106   // Send enough updates, but make them be too small to trigger detection.
 107   gfx::Rect update_region(
 108       gfx::Point(),
 109       gfx::Size(VideoDetector::kMinUpdateWidth - 1,
 110                 VideoDetector::kMinUpdateHeight));
 111   for (int i = 0; i < VideoDetector::kMinFramesPerSecond; ++i)
 112     detector_->OnDelegatedFrameDamage(window.get(), update_region);
 113   EXPECT_EQ(0, observer_->num_invocations());
 114
 115   // Send not-quite-enough adaquately-sized updates.
 116   observer_->reset_stats();
 117   AdvanceTime(base::TimeDelta::FromSeconds(2));
 118   update_region.set_size(
 119       gfx::Size(VideoDetector::kMinUpdateWidth,
 120                 VideoDetector::kMinUpdateHeight));
 121   for (int i = 0; i < VideoDetector::kMinFramesPerSecond - 1; ++i)
 122     detector_->OnDelegatedFrameDamage(window.get(), update_region);
 123   EXPECT_EQ(0, observer_->num_invocations());
 124
 125   // We should get notified after the next update, but not in response to
 126   // additional updates.
 127   detector_->OnDelegatedFrameDamage(window.get(), update_region);
 128   EXPECT_EQ(1, observer_->num_invocations());
 129   EXPECT_EQ(0, observer_->num_fullscreens());
 130   EXPECT_EQ(1, observer_->num_not_fullscreens());
 131   detector_->OnDelegatedFrameDamage(window.get(), update_region);
 132   EXPECT_EQ(1, observer_->num_invocations());
 133   EXPECT_EQ(0, observer_->num_fullscreens());
 134   EXPECT_EQ(1, observer_->num_not_fullscreens());
 135
 136   // Spread out the frames over a longer period of time, but send enough
 137   // over a one-second window that the observer should be notified.
 138   observer_->reset_stats();
 139   AdvanceTime(base::TimeDelta::FromSeconds(2));
 140   detector_->OnDelegatedFrameDamage(window.get(), update_region);
 141   EXPECT_EQ(0, observer_->num_invocations());
 142
 143   AdvanceTime(base::TimeDelta::FromMilliseconds(500));
 144   const int kNumFrames = VideoDetector::kMinFramesPerSecond + 1;
 145   base::TimeDelta kInterval =
 146       base::TimeDelta::FromMilliseconds(1000 / kNumFrames);
 147   for (int i = 0; i < kNumFrames; ++i) {
 148     AdvanceTime(kInterval);
 149     detector_->OnDelegatedFrameDamage(window.get(), update_region);
 150   }
 151   EXPECT_EQ(1, observer_->num_invocations());
 152
 153   // Keep going and check that the observer is notified again.
 154   for (int i = 0; i < kNumFrames; ++i) {
 155     AdvanceTime(kInterval);
 156     detector_->OnDelegatedFrameDamage(window.get(), update_region);
 157   }
 158   EXPECT_EQ(2, observer_->num_invocations());
 159
 160   // Send updates at a slower rate and check that the observer isn't notified.
 161   base::TimeDelta kSlowInterval = base::TimeDelta::FromMilliseconds(
 162       1000 / (VideoDetector::kMinFramesPerSecond - 2));
 163   for (int i = 0; i < kNumFrames; ++i) {
 164     AdvanceTime(kSlowInterval);
 165     detector_->OnDelegatedFrameDamage(window.get(), update_region);
 166   }
 167   EXPECT_EQ(2, observer_->num_invocations());
 168 }
 169
 170 TEST_F(VideoDetectorTest, Shutdown) {
 171   gfx::Rect window_bounds(gfx::Point(), gfx::Size(1024, 768));
 172   scoped_ptr<aura::Window> window(
 173       CreateTestWindowInShell(SK_ColorRED, 12345, window_bounds));
 174   gfx::Rect update_region(
 175       gfx::Point(),
 176       gfx::Size(VideoDetector::kMinUpdateWidth,
 177                 VideoDetector::kMinUpdateHeight));
 178
 179   // It should not detect video during the shutdown.
 180   Shell::GetInstance()->OnAppTerminating();
 181   for (int i = 0; i < VideoDetector::kMinFramesPerSecond; ++i)
 182     detector_->OnDelegatedFrameDamage(window.get(), update_region);
 183   EXPECT_EQ(0, observer_->num_invocations());
 184 }
 185
 186 TEST_F(VideoDetectorTest, WindowNotVisible) {
 187   gfx::Rect window_bounds(gfx::Point(), gfx::Size(1024, 768));
 188   scoped_ptr<aura::Window> window(
 189       CreateTestWindowInShell(SK_ColorRED, 12345, window_bounds));
 190
 191   // Reparent the window to the root to make sure that visibility changes aren't
 192   // animated.
 193   Shell::GetPrimaryRootWindow()->AddChild(window.get());
 194
 195   // We shouldn't report video that's played in a hidden window.
 196   window->Hide();
 197   gfx::Rect update_region(
 198       gfx::Point(),
 199       gfx::Size(VideoDetector::kMinUpdateWidth,
 200                 VideoDetector::kMinUpdateHeight));
 201   for (int i = 0; i < VideoDetector::kMinFramesPerSecond; ++i)
 202     detector_->OnDelegatedFrameDamage(window.get(), update_region);
 203   EXPECT_EQ(0, observer_->num_invocations());
 204
 205   // Make the window visible and send more updates.
 206   observer_->reset_stats();
 207   AdvanceTime(base::TimeDelta::FromSeconds(2));
 208   window->Show();
 209   for (int i = 0; i < VideoDetector::kMinFramesPerSecond; ++i)
 210     detector_->OnDelegatedFrameDamage(window.get(), update_region);
 211   EXPECT_EQ(1, observer_->num_invocations());
 212   EXPECT_EQ(0, observer_->num_fullscreens());
 213   EXPECT_EQ(1, observer_->num_not_fullscreens());
 214
 215   // We also shouldn't report video in a window that's fully offscreen.
 216   observer_->reset_stats();
 217   AdvanceTime(base::TimeDelta::FromSeconds(2));
 218   gfx::Rect offscreen_bounds(
 219       gfx::Point(Shell::GetPrimaryRootWindow()->bounds().width(), 0),
 220       window_bounds.size());
 221   window->SetBounds(offscreen_bounds);
 222   ASSERT_EQ(offscreen_bounds, window->bounds());
 223   for (int i = 0; i < VideoDetector::kMinFramesPerSecond; ++i)
 224     detector_->OnDelegatedFrameDamage(window.get(), update_region);
 225   EXPECT_EQ(0, observer_->num_invocations());
 226 }
 227
 228 TEST_F(VideoDetectorTest, MultipleWindows) {
 229   // Create two windows.
 230   gfx::Rect window_bounds(gfx::Point(), gfx::Size(1024, 768));
 231   scoped_ptr<aura::Window> window1(
 232       CreateTestWindowInShell(SK_ColorRED, 12345, window_bounds));
 233   scoped_ptr<aura::Window> window2(
 234       CreateTestWindowInShell(SK_ColorBLUE, 23456, window_bounds));
 235
 236   // Even if there's video playing in both, the observer should only receive a
 237   // single notification.
 238   gfx::Rect update_region(
 239       gfx::Point(),
 240       gfx::Size(VideoDetector::kMinUpdateWidth,
 241                 VideoDetector::kMinUpdateHeight));
 242   for (int i = 0; i < VideoDetector::kMinFramesPerSecond; ++i)
 243     detector_->OnDelegatedFrameDamage(window1.get(), update_region);
 244   for (int i = 0; i < VideoDetector::kMinFramesPerSecond; ++i)
 245     detector_->OnDelegatedFrameDamage(window2.get(), update_region);
 246   EXPECT_EQ(1, observer_->num_invocations());
 247   EXPECT_EQ(0, observer_->num_fullscreens());
 248   EXPECT_EQ(1, observer_->num_not_fullscreens());
 249 }
 250
 251 // Test that the observer receives repeated notifications.
 252 TEST_F(VideoDetectorTest, RepeatedNotifications) {
 253   gfx::Rect window_bounds(gfx::Point(), gfx::Size(1024, 768));
 254   scoped_ptr<aura::Window> window(
 255       CreateTestWindowInShell(SK_ColorRED, 12345, window_bounds));
 256
 257   gfx::Rect update_region(
 258       gfx::Point(),
 259       gfx::Size(VideoDetector::kMinUpdateWidth,
 260                 VideoDetector::kMinUpdateHeight));
 261   for (int i = 0; i < VideoDetector::kMinFramesPerSecond; ++i)
 262     detector_->OnDelegatedFrameDamage(window.get(), update_region);
 263   EXPECT_EQ(1, observer_->num_invocations());
 264   EXPECT_EQ(0, observer_->num_fullscreens());
 265   EXPECT_EQ(1, observer_->num_not_fullscreens());
 266   // Let enough time pass that a second notification should be sent.
 267   observer_->reset_stats();
 268   AdvanceTime(base::TimeDelta::FromSeconds(
 269       static_cast<int64>(VideoDetector::kNotifyIntervalSec + 1)));
 270   for (int i = 0; i < VideoDetector::kMinFramesPerSecond; ++i)
 271     detector_->OnDelegatedFrameDamage(window.get(), update_region);
 272   EXPECT_EQ(1, observer_->num_invocations());
 273   EXPECT_EQ(0, observer_->num_fullscreens());
 274   EXPECT_EQ(1, observer_->num_not_fullscreens());
 275 }
 276
 277 // Test that the observer receives a true value when the window is fullscreen.
 278 TEST_F(VideoDetectorTest, FullscreenWindow) {
 279   if (!SupportsMultipleDisplays())
 280     return;
 281
 282   UpdateDisplay("1024x768,1024x768");
 283
 284   const gfx::Rect kLeftBounds(gfx::Point(), gfx::Size(1024, 768));
 285   scoped_ptr<aura::Window> window(
 286       CreateTestWindowInShell(SK_ColorRED, 12345, kLeftBounds));
 287   wm::WindowState* window_state = wm::GetWindowState(window.get());
 288   const wm::WMEvent toggle_fullscreen_event(wm::WM_EVENT_TOGGLE_FULLSCREEN);
 289   window_state->OnWMEvent(&toggle_fullscreen_event);
 290   ASSERT_TRUE(window_state->IsFullscreen());
 291   window->Focus();
 292   const gfx::Rect kUpdateRegion(
 293       gfx::Point(),
 294       gfx::Size(VideoDetector::kMinUpdateWidth,
 295                 VideoDetector::kMinUpdateHeight));
 296   for (int i = 0; i < VideoDetector::kMinFramesPerSecond; ++i)
 297     detector_->OnDelegatedFrameDamage(window.get(), kUpdateRegion);
 298   EXPECT_EQ(1, observer_->num_invocations());
 299   EXPECT_EQ(1, observer_->num_fullscreens());
 300   EXPECT_EQ(0, observer_->num_not_fullscreens());
 301
 302   // Make the first window non-fullscreen and open a second fullscreen window on
 303   // a different desktop.
 304   window_state->OnWMEvent(&toggle_fullscreen_event);
 305   ASSERT_FALSE(window_state->IsFullscreen());
 306   const gfx::Rect kRightBounds(gfx::Point(1024, 0), gfx::Size(1024, 768));
 307   scoped_ptr<aura::Window> other_window(
 308       CreateTestWindowInShell(SK_ColorBLUE, 6789, kRightBounds));
 309   wm::WindowState* other_window_state = wm::GetWindowState(other_window.get());
 310   other_window_state->OnWMEvent(&toggle_fullscreen_event);
 311   ASSERT_TRUE(other_window_state->IsFullscreen());
 312
 313   // When video is detected in the first (now non-fullscreen) window, fullscreen
 314   // video should still be reported due to the second window being fullscreen.
 315   // This avoids situations where non-fullscreen video could be reported when
 316   // multiple videos are playing in fullscreen and non-fullscreen windows.
 317   observer_->reset_stats();
 318   AdvanceTime(base::TimeDelta::FromSeconds(2));
 319   for (int i = 0; i < VideoDetector::kMinFramesPerSecond; ++i)
 320     detector_->OnDelegatedFrameDamage(window.get(), kUpdateRegion);
 321   EXPECT_EQ(1, observer_->num_invocations());
 322   EXPECT_EQ(1, observer_->num_fullscreens());
 323   EXPECT_EQ(0, observer_->num_not_fullscreens());
 324
 325   // Make the second window non-fullscreen and check that the next video report
 326   // is non-fullscreen.
 327   other_window_state->OnWMEvent(&toggle_fullscreen_event);
 328   ASSERT_FALSE(other_window_state->IsFullscreen());
 329   observer_->reset_stats();
 330   AdvanceTime(base::TimeDelta::FromSeconds(2));
 331   for (int i = 0; i < VideoDetector::kMinFramesPerSecond; ++i)
 332     detector_->OnDelegatedFrameDamage(window.get(), kUpdateRegion);
 333   EXPECT_EQ(1, observer_->num_invocations());
 334   EXPECT_EQ(0, observer_->num_fullscreens());
 335   EXPECT_EQ(1, observer_->num_not_fullscreens());
 336 }
 337
 338 }  // namespace test
 339 }  // namespace ash