chrome/browser/ui/exclusive_access/fullscreen_controller_state_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 "base/command_line.h"
   6 #include "build/build_config.h"
   7 #include "chrome/browser/ui/browser.h"
   8 #include "chrome/browser/ui/browser_tabstrip.h"
   9 #include "chrome/browser/ui/exclusive_access/exclusive_access_context.h"
  10 #include "chrome/browser/ui/exclusive_access/fullscreen_controller.h"
  11 #include "chrome/browser/ui/exclusive_access/fullscreen_controller_state_test.h"
  12 #include "chrome/browser/ui/tabs/tab_strip_model.h"
  13 #include "chrome/test/base/browser_with_test_window_test.h"
  14 #include "content/public/browser/web_contents.h"
  15 #include "content/public/common/url_constants.h"
  16 #include "testing/gtest/include/gtest/gtest.h"
  17
  18 // The FullscreenControllerStateUnitTest unit test suite exhastively tests
  19 // the FullscreenController through all permutations of events. The behavior
  20 // of the BrowserWindow is mocked via FullscreenControllerTestWindow.
  21
  22
  23 // FullscreenControllerTestWindow ----------------------------------------------
  24
  25 // A BrowserWindow used for testing FullscreenController. The behavior of this
  26 // mock is verfied manually by running FullscreenControllerStateInteractiveTest.
  27 class FullscreenControllerTestWindow : public TestBrowserWindow,
  28                                        ExclusiveAccessContext {
  29  public:
  30   // Simulate the window state with an enumeration.
  31   enum WindowState {
  32     NORMAL,
  33     FULLSCREEN,
  34     // No TO_ state for METRO_SNAP, the windows implementation is synchronous.
  35     METRO_SNAP,
  36     TO_NORMAL,
  37     TO_FULLSCREEN,
  38   };
  39
  40   FullscreenControllerTestWindow();
  41   ~FullscreenControllerTestWindow() override {}
  42
  43   // BrowserWindow Interface:
  44   void EnterFullscreen(const GURL& url,
  45                        ExclusiveAccessBubbleType type,
  46                        bool with_toolbar) override;
  47   void ExitFullscreen() override;
  48   bool ShouldHideUIForFullscreen() const override;
  49   bool IsFullscreen() const override;
  50   bool SupportsFullscreenWithToolbar() const override;
  51   void UpdateFullscreenWithToolbar(bool with_toolbar) override;
  52   bool IsFullscreenWithToolbar() const override;
  53 #if defined(OS_WIN)
  54   virtual void SetMetroSnapMode(bool enable) override;
  55   virtual bool IsInMetroSnapMode() const override;
  56 #endif
  57   static const char* GetWindowStateString(WindowState state);
  58   WindowState state() const { return state_; }
  59   void set_browser(Browser* browser) { browser_ = browser; }
  60   ExclusiveAccessContext* GetExclusiveAccessContext() override;
  61
  62   // ExclusiveAccessContext Interface:
  63   Profile* GetProfile() override;
  64   content::WebContents* GetActiveWebContents() override;
  65   void HideDownloadShelf() override;
  66   void UnhideDownloadShelf() override;
  67   void UpdateExclusiveAccessExitBubbleContent(
  68       const GURL& url,
  69       ExclusiveAccessBubbleType bubble_type) override;
  70
  71   // Simulates the window changing state.
  72   void ChangeWindowFullscreenState();
  73
  74  private:
  75   // Enters fullscreen with |new_mac_with_toolbar_mode|.
  76   void EnterFullscreen(bool new_mac_with_toolbar_mode);
  77
  78   // Returns true if ChangeWindowFullscreenState() should be called as a result
  79   // of updating the current fullscreen state to the passed in state.
  80   bool IsTransitionReentrant(bool new_fullscreen,
  81                              bool new_mac_with_toolbar_mode);
  82
  83   WindowState state_;
  84   bool mac_with_toolbar_mode_;
  85   Browser* browser_;
  86 };
  87
  88 FullscreenControllerTestWindow::FullscreenControllerTestWindow()
  89     : state_(NORMAL),
  90       mac_with_toolbar_mode_(false),
  91       browser_(NULL) {
  92 }
  93
  94 void FullscreenControllerTestWindow::EnterFullscreen(
  95     const GURL& url,
  96     ExclusiveAccessBubbleType type,
  97     bool with_toolbar) {
  98   EnterFullscreen(with_toolbar);
  99 }
 100
 101 void FullscreenControllerTestWindow::ExitFullscreen() {
 102   if (IsFullscreen()) {
 103     state_ = TO_NORMAL;
 104     mac_with_toolbar_mode_ = false;
 105
 106     if (IsTransitionReentrant(false, false))
 107       ChangeWindowFullscreenState();
 108   }
 109 }
 110
 111 bool FullscreenControllerTestWindow::ShouldHideUIForFullscreen() const {
 112   return IsFullscreen();
 113 }
 114
 115 bool FullscreenControllerTestWindow::IsFullscreen() const {
 116 #if defined(OS_MACOSX)
 117   return state_ == FULLSCREEN || state_ == TO_FULLSCREEN;
 118 #else
 119   return state_ == FULLSCREEN || state_ == TO_NORMAL;
 120 #endif
 121 }
 122
 123 bool FullscreenControllerTestWindow::SupportsFullscreenWithToolbar() const {
 124 #if defined(OS_MACOSX)
 125   return true;
 126 #else
 127   return false;
 128 #endif
 129 }
 130
 131 void FullscreenControllerTestWindow::UpdateFullscreenWithToolbar(
 132     bool with_toolbar) {
 133   EnterFullscreen(with_toolbar);
 134 }
 135
 136 bool FullscreenControllerTestWindow::IsFullscreenWithToolbar() const {
 137   return IsFullscreen() && mac_with_toolbar_mode_;
 138 }
 139
 140 #if defined(OS_WIN)
 141 void FullscreenControllerTestWindow::SetMetroSnapMode(bool enable) {
 142   if (enable != IsInMetroSnapMode())
 143     state_ = enable ? METRO_SNAP : NORMAL;
 144
 145   if (FullscreenControllerStateTest::IsWindowFullscreenStateChangedReentrant())
 146     ChangeWindowFullscreenState();
 147 }
 148
 149 bool FullscreenControllerTestWindow::IsInMetroSnapMode() const {
 150   return state_ == METRO_SNAP;
 151 }
 152 #endif
 153
 154 // static
 155 const char* FullscreenControllerTestWindow::GetWindowStateString(
 156     WindowState state) {
 157   switch (state) {
 158     ENUM_TO_STRING(NORMAL);
 159     ENUM_TO_STRING(FULLSCREEN);
 160     ENUM_TO_STRING(METRO_SNAP);
 161     ENUM_TO_STRING(TO_FULLSCREEN);
 162     ENUM_TO_STRING(TO_NORMAL);
 163     default:
 164       NOTREACHED() << "No string for state " << state;
 165       return "WindowState-Unknown";
 166   }
 167 }
 168
 169 void FullscreenControllerTestWindow::ChangeWindowFullscreenState() {
 170   // Most states result in "no operation" intentionally. The tests
 171   // assume that all possible states and event pairs can be tested, even
 172   // though window managers will not generate all of these.
 173   if (state_ == TO_FULLSCREEN)
 174       state_ = FULLSCREEN;
 175   else if (state_ == TO_NORMAL)
 176       state_ = NORMAL;
 177
 178   // Emit a change event from every state to ensure the Fullscreen Controller
 179   // handles it in all circumstances.
 180   browser_->WindowFullscreenStateChanged();
 181 }
 182
 183 void FullscreenControllerTestWindow::EnterFullscreen(
 184     bool new_mac_with_toolbar_mode) {
 185   bool reentrant = IsTransitionReentrant(true, new_mac_with_toolbar_mode);
 186
 187   mac_with_toolbar_mode_ = new_mac_with_toolbar_mode;
 188   if (!IsFullscreen())
 189     state_ = TO_FULLSCREEN;
 190
 191   if (reentrant)
 192     ChangeWindowFullscreenState();
 193 }
 194
 195 bool FullscreenControllerTestWindow::IsTransitionReentrant(
 196     bool new_fullscreen,
 197     bool new_mac_with_toolbar_mode) {
 198 #if defined(OS_MACOSX)
 199   bool mac_with_toolbar_mode_changed =
 200       new_mac_with_toolbar_mode != IsFullscreenWithToolbar();
 201 #else
 202   bool mac_with_toolbar_mode_changed = false;
 203 #endif
 204   bool fullscreen_changed = (new_fullscreen != IsFullscreen());
 205
 206   if (!fullscreen_changed && !mac_with_toolbar_mode_changed)
 207     return false;
 208
 209   if (FullscreenControllerStateTest::IsWindowFullscreenStateChangedReentrant())
 210     return true;
 211
 212   // BrowserWindowCocoa::EnterFullscreen() and
 213   // BrowserWindowCocoa::EnterFullscreenWithToolbar() are reentrant when
 214   // switching between fullscreen with chrome and fullscreen without chrome.
 215   return state_ == FULLSCREEN &&
 216       !fullscreen_changed &&
 217       mac_with_toolbar_mode_changed;
 218 }
 219
 220 ExclusiveAccessContext*
 221 FullscreenControllerTestWindow::GetExclusiveAccessContext() {
 222   return this;
 223 }
 224
 225 Profile* FullscreenControllerTestWindow::GetProfile() {
 226   return browser_->profile();
 227 }
 228
 229 content::WebContents* FullscreenControllerTestWindow::GetActiveWebContents() {
 230   return browser_->tab_strip_model()->GetActiveWebContents();
 231 }
 232
 233 void FullscreenControllerTestWindow::UnhideDownloadShelf() {
 234   GetDownloadShelf()->Unhide();
 235 }
 236
 237 void FullscreenControllerTestWindow::HideDownloadShelf() {
 238   GetDownloadShelf()->Hide();
 239 }
 240
 241 void FullscreenControllerTestWindow::UpdateExclusiveAccessExitBubbleContent(
 242     const GURL& url,
 243     ExclusiveAccessBubbleType bubble_type) {
 244   TestBrowserWindow::UpdateExclusiveAccessExitBubbleContent(url, bubble_type);
 245 }
 246
 247 // FullscreenControllerStateUnitTest -------------------------------------------
 248
 249 // Unit test fixture testing Fullscreen Controller through its states. Most of
 250 // the test logic comes from FullscreenControllerStateTest.
 251 class FullscreenControllerStateUnitTest : public BrowserWithTestWindowTest,
 252                                           public FullscreenControllerStateTest {
 253  public:
 254   FullscreenControllerStateUnitTest();
 255
 256   // FullscreenControllerStateTest:
 257   void SetUp() override;
 258   BrowserWindow* CreateBrowserWindow() override;
 259   void ChangeWindowFullscreenState() override;
 260   const char* GetWindowStateString() override;
 261   void VerifyWindowState() override;
 262
 263  protected:
 264   // FullscreenControllerStateTest:
 265   bool ShouldSkipStateAndEventPair(State state, Event event) override;
 266   Browser* GetBrowser() override;
 267   FullscreenControllerTestWindow* window_;
 268 };
 269
 270 FullscreenControllerStateUnitTest::FullscreenControllerStateUnitTest()
 271     : window_(NULL) {
 272 }
 273
 274 void FullscreenControllerStateUnitTest::SetUp() {
 275   BrowserWithTestWindowTest::SetUp();
 276   window_->set_browser(browser());
 277 }
 278
 279 BrowserWindow* FullscreenControllerStateUnitTest::CreateBrowserWindow() {
 280   window_ = new FullscreenControllerTestWindow();
 281   return window_;  // BrowserWithTestWindowTest takes ownership.
 282 }
 283
 284 void FullscreenControllerStateUnitTest::ChangeWindowFullscreenState() {
 285   window_->ChangeWindowFullscreenState();
 286 }
 287
 288 const char* FullscreenControllerStateUnitTest::GetWindowStateString() {
 289   return FullscreenControllerTestWindow::GetWindowStateString(window_->state());
 290 }
 291
 292 void FullscreenControllerStateUnitTest::VerifyWindowState() {
 293   switch (state()) {
 294     case STATE_NORMAL:
 295       EXPECT_EQ(FullscreenControllerTestWindow::NORMAL,
 296                 window_->state()) << GetAndClearDebugLog();
 297       break;
 298
 299     case STATE_BROWSER_FULLSCREEN_NO_CHROME:
 300     case STATE_BROWSER_FULLSCREEN_WITH_CHROME:
 301     case STATE_TAB_FULLSCREEN:
 302     case STATE_TAB_BROWSER_FULLSCREEN:
 303     case STATE_TAB_BROWSER_FULLSCREEN_CHROME:
 304       EXPECT_EQ(FullscreenControllerTestWindow::FULLSCREEN,
 305                 window_->state()) << GetAndClearDebugLog();
 306       break;
 307
 308 #if defined(OS_WIN)
 309     case STATE_METRO_SNAP:
 310       EXPECT_EQ(FullscreenControllerTestWindow::METRO_SNAP,
 311                 window_->state()) << GetAndClearDebugLog();
 312       break;
 313 #endif
 314
 315     case STATE_TO_NORMAL:
 316       EXPECT_EQ(FullscreenControllerTestWindow::TO_NORMAL,
 317                 window_->state()) << GetAndClearDebugLog();
 318       break;
 319
 320     case STATE_TO_BROWSER_FULLSCREEN_NO_CHROME:
 321     case STATE_TO_BROWSER_FULLSCREEN_WITH_CHROME:
 322     case STATE_TO_TAB_FULLSCREEN:
 323       EXPECT_EQ(FullscreenControllerTestWindow::TO_FULLSCREEN,
 324                 window_->state()) << GetAndClearDebugLog();
 325       break;
 326
 327     default:
 328       NOTREACHED() << GetAndClearDebugLog();
 329   }
 330
 331   FullscreenControllerStateTest::VerifyWindowState();
 332 }
 333
 334 bool FullscreenControllerStateUnitTest::ShouldSkipStateAndEventPair(
 335     State state, Event event) {
 336 #if defined(OS_MACOSX)
 337   // TODO(scheib) Toggle, Window Event, Toggle, Toggle on Mac as exposed by
 338   // test *.STATE_TO_NORMAL__TOGGLE_FULLSCREEN runs interactively and exits to
 339   // Normal. This doesn't appear to be the desired result, and would add
 340   // too much complexity to mimic in our simple FullscreenControllerTestWindow.
 341   // http://crbug.com/156968
 342   if ((state == STATE_TO_NORMAL ||
 343        state == STATE_TO_BROWSER_FULLSCREEN_NO_CHROME ||
 344        state == STATE_TO_TAB_FULLSCREEN) &&
 345       event == TOGGLE_FULLSCREEN)
 346     return true;
 347 #endif
 348
 349   return FullscreenControllerStateTest::ShouldSkipStateAndEventPair(state,
 350                                                                     event);
 351 }
 352
 353 Browser* FullscreenControllerStateUnitTest::GetBrowser() {
 354   return BrowserWithTestWindowTest::browser();
 355 }
 356
 357 // Soak tests ------------------------------------------------------------------
 358
 359 // Tests all states with all permutations of multiple events to detect lingering
 360 // state issues that would bleed over to other states.
 361 // I.E. for each state test all combinations of events E1, E2, E3.
 362 //
 363 // This produces coverage for event sequences that may happen normally but
 364 // would not be exposed by traversing to each state via TransitionToState().
 365 // TransitionToState() always takes the same path even when multiple paths
 366 // exist.
 367 TEST_F(FullscreenControllerStateUnitTest, TransitionsForEachState) {
 368   // A tab is needed for tab fullscreen.
 369   AddTab(browser(), GURL(url::kAboutBlankURL));
 370   TestTransitionsForEachState();
 371   // Progress of test can be examined via LOG(INFO) << GetAndClearDebugLog();
 372 }
 373
 374
 375 // Individual tests for each pair of state and event ---------------------------
 376
 377 #define TEST_EVENT(state, event)                                \
 378   TEST_F(FullscreenControllerStateUnitTest, state##__##event) { \
 379     AddTab(browser(), GURL(url::kAboutBlankURL));               \
 380     ASSERT_NO_FATAL_FAILURE(TestStateAndEvent(state, event))    \
 381         << GetAndClearDebugLog();                               \
 382   }
 383     // Progress of tests can be examined by inserting the following line:
 384     // LOG(INFO) << GetAndClearDebugLog(); }
 385
 386 #include "chrome/browser/ui/exclusive_access/fullscreen_controller_state_tests.h"
 387
 388
 389 // Specific one-off tests for known issues -------------------------------------
 390
 391 // TODO(scheib) Toggling Tab fullscreen while pending Tab or
 392 // Browser fullscreen is broken currently http://crbug.com/154196
 393 TEST_F(FullscreenControllerStateUnitTest,
 394        DISABLED_ToggleTabWhenPendingBrowser) {
 395   // Only possible without reentrancy.
 396   if (FullscreenControllerStateTest::IsWindowFullscreenStateChangedReentrant())
 397     return;
 398   AddTab(browser(), GURL(url::kAboutBlankURL));
 399   ASSERT_NO_FATAL_FAILURE(
 400       TransitionToState(STATE_TO_BROWSER_FULLSCREEN_NO_CHROME))
 401       << GetAndClearDebugLog();
 402
 403   ASSERT_TRUE(InvokeEvent(TAB_FULLSCREEN_TRUE)) << GetAndClearDebugLog();
 404   ASSERT_TRUE(InvokeEvent(TAB_FULLSCREEN_FALSE)) << GetAndClearDebugLog();
 405   ASSERT_TRUE(InvokeEvent(WINDOW_CHANGE)) << GetAndClearDebugLog();
 406 }
 407
 408 // TODO(scheib) Toggling Tab fullscreen while pending Tab or
 409 // Browser fullscreen is broken currently http://crbug.com/154196
 410 TEST_F(FullscreenControllerStateUnitTest, DISABLED_ToggleTabWhenPendingTab) {
 411   // Only possible without reentrancy.
 412   if (FullscreenControllerStateTest::IsWindowFullscreenStateChangedReentrant())
 413     return;
 414   AddTab(browser(), GURL(url::kAboutBlankURL));
 415   ASSERT_NO_FATAL_FAILURE(
 416       TransitionToState(STATE_TO_TAB_FULLSCREEN))
 417       << GetAndClearDebugLog();
 418
 419   ASSERT_TRUE(InvokeEvent(TAB_FULLSCREEN_TRUE)) << GetAndClearDebugLog();
 420   ASSERT_TRUE(InvokeEvent(TAB_FULLSCREEN_FALSE)) << GetAndClearDebugLog();
 421   ASSERT_TRUE(InvokeEvent(WINDOW_CHANGE)) << GetAndClearDebugLog();
 422 }
 423
 424 // Debugging utility: Display the transition tables. Intentionally disabled
 425 TEST_F(FullscreenControllerStateUnitTest, DISABLED_DebugLogStateTables) {
 426   std::ostringstream output;
 427   output << "\n\nTransition Table:";
 428   output << GetTransitionTableAsString();
 429
 430   output << "\n\nInitial transitions:";
 431   output << GetStateTransitionsAsString();
 432
 433   // Calculate all transition pairs.
 434   for (int state1_int = 0; state1_int < NUM_STATES; ++state1_int) {
 435     State state1 = static_cast<State>(state1_int);
 436     for (int state2_int = 0; state2_int < NUM_STATES; ++state2_int) {
 437       State state2 = static_cast<State>(state2_int);
 438       if (ShouldSkipStateAndEventPair(state1, EVENT_INVALID) ||
 439           ShouldSkipStateAndEventPair(state2, EVENT_INVALID))
 440         continue;
 441       // Compute the transition
 442       if (NextTransitionInShortestPath(state1, state2, NUM_STATES).state ==
 443           STATE_INVALID) {
 444         LOG(ERROR) << "Should be skipping state transitions for: "
 445             << GetStateString(state1) << " " << GetStateString(state2);
 446       }
 447     }
 448   }
 449
 450   output << "\n\nAll transitions:";
 451   output << GetStateTransitionsAsString();
 452   LOG(INFO) << output.str();
 453 }
 454
 455 // Test that the fullscreen exit bubble is closed by
 456 // WindowFullscreenStateChanged() if fullscreen is exited via BrowserWindow.
 457 // This currently occurs when an extension exits fullscreen via changing the
 458 // browser bounds.
 459 TEST_F(FullscreenControllerStateUnitTest, ExitFullscreenViaBrowserWindow) {
 460   AddTab(browser(), GURL(url::kAboutBlankURL));
 461   ASSERT_TRUE(InvokeEvent(TOGGLE_FULLSCREEN));
 462   ASSERT_TRUE(InvokeEvent(WINDOW_CHANGE));
 463   ASSERT_TRUE(browser()->window()->IsFullscreen());
 464   // Exit fullscreen without going through fullscreen controller.
 465   browser()->window()->ExitFullscreen();
 466   ChangeWindowFullscreenState();
 467   EXPECT_EQ(EXCLUSIVE_ACCESS_BUBBLE_TYPE_NONE,
 468             browser()
 469                 ->exclusive_access_manager()
 470                 ->GetExclusiveAccessExitBubbleType());
 471 }
 472
 473 // Test that switching tabs takes the browser out of tab fullscreen.
 474 TEST_F(FullscreenControllerStateUnitTest, ExitTabFullscreenViaSwitchingTab) {
 475   AddTab(browser(), GURL(url::kAboutBlankURL));
 476   AddTab(browser(), GURL(url::kAboutBlankURL));
 477   ASSERT_TRUE(InvokeEvent(TAB_FULLSCREEN_TRUE));
 478   ASSERT_TRUE(InvokeEvent(WINDOW_CHANGE));
 479   ASSERT_TRUE(browser()->window()->IsFullscreen());
 480
 481   browser()->tab_strip_model()->SelectNextTab();
 482   ChangeWindowFullscreenState();
 483   EXPECT_FALSE(browser()->window()->IsFullscreen());
 484 }
 485
 486 // Test that switching tabs via detaching the active tab (which is in tab
 487 // fullscreen) takes the browser out of tab fullscreen. This case can
 488 // occur if the user is in both tab fullscreen and immersive browser fullscreen.
 489 TEST_F(FullscreenControllerStateUnitTest, ExitTabFullscreenViaDetachingTab) {
 490   AddTab(browser(), GURL(url::kAboutBlankURL));
 491   AddTab(browser(), GURL(url::kAboutBlankURL));
 492   ASSERT_TRUE(InvokeEvent(TAB_FULLSCREEN_TRUE));
 493   ASSERT_TRUE(InvokeEvent(WINDOW_CHANGE));
 494   ASSERT_TRUE(browser()->window()->IsFullscreen());
 495
 496   scoped_ptr<content::WebContents> web_contents(
 497       browser()->tab_strip_model()->DetachWebContentsAt(0));
 498   ChangeWindowFullscreenState();
 499   EXPECT_FALSE(browser()->window()->IsFullscreen());
 500 }
 501
 502 // Test that replacing the web contents for a tab which is in tab fullscreen
 503 // takes the browser out of tab fullscreen. This can occur if the user
 504 // navigates to a prerendered page from a page which is tab fullscreen.
 505 TEST_F(FullscreenControllerStateUnitTest, ExitTabFullscreenViaReplacingTab) {
 506   AddTab(browser(), GURL(url::kAboutBlankURL));
 507   ASSERT_TRUE(InvokeEvent(TAB_FULLSCREEN_TRUE));
 508   ASSERT_TRUE(InvokeEvent(WINDOW_CHANGE));
 509   ASSERT_TRUE(browser()->window()->IsFullscreen());
 510
 511   content::WebContents* new_web_contents = content::WebContents::Create(
 512       content::WebContents::CreateParams(profile()));
 513   scoped_ptr<content::WebContents> old_web_contents(
 514       browser()->tab_strip_model()->ReplaceWebContentsAt(
 515           0, new_web_contents));
 516   ChangeWindowFullscreenState();
 517   EXPECT_FALSE(browser()->window()->IsFullscreen());
 518 }
 519
 520 // Tests that, in a browser configured for Fullscreen-Within-Tab mode,
 521 // fullscreening a screen-captured tab will NOT cause any fullscreen state
 522 // change to the browser window. Furthermore, the test switches between tabs to
 523 // confirm a captured tab will be resized by FullscreenController to the capture
 524 // video resolution once the widget is detached from the UI.
 525 //
 526 // See 'FullscreenWithinTab Note' in fullscreen_controller.h.
 527 TEST_F(FullscreenControllerStateUnitTest, OneCapturedFullscreenedTab) {
 528   content::WebContentsDelegate* const wc_delegate =
 529       static_cast<content::WebContentsDelegate*>(browser());
 530   ASSERT_TRUE(wc_delegate->EmbedsFullscreenWidget());
 531
 532   AddTab(browser(), GURL(url::kAboutBlankURL));
 533   AddTab(browser(), GURL(url::kAboutBlankURL));
 534   content::WebContents* const first_tab =
 535       browser()->tab_strip_model()->GetWebContentsAt(0);
 536   content::WebContents* const second_tab =
 537       browser()->tab_strip_model()->GetWebContentsAt(1);
 538
 539   // Activate the first tab and tell its WebContents it is being captured.
 540   browser()->tab_strip_model()->ActivateTabAt(0, true);
 541   const gfx::Size kCaptureSize(1280, 720);
 542   first_tab->IncrementCapturerCount(kCaptureSize);
 543   ASSERT_FALSE(browser()->window()->IsFullscreen());
 544   ASSERT_FALSE(wc_delegate->IsFullscreenForTabOrPending(first_tab));
 545   ASSERT_FALSE(wc_delegate->IsFullscreenForTabOrPending(second_tab));
 546   ASSERT_FALSE(GetFullscreenController()->IsWindowFullscreenForTabOrPending());
 547
 548   // Enter tab fullscreen.  Since the tab is being captured, the browser window
 549   // should not expand to fill the screen.
 550   ASSERT_TRUE(InvokeEvent(TAB_FULLSCREEN_TRUE));
 551   EXPECT_FALSE(browser()->window()->IsFullscreen());
 552   EXPECT_TRUE(wc_delegate->IsFullscreenForTabOrPending(first_tab));
 553   EXPECT_FALSE(wc_delegate->IsFullscreenForTabOrPending(second_tab));
 554   EXPECT_FALSE(GetFullscreenController()->IsWindowFullscreenForTabOrPending());
 555
 556   // Switch to the other tab.  Check that the first tab was resized to the
 557   // WebContents' preferred size.
 558   browser()->tab_strip_model()->ActivateTabAt(1, true);
 559   EXPECT_FALSE(browser()->window()->IsFullscreen());
 560   EXPECT_TRUE(wc_delegate->IsFullscreenForTabOrPending(first_tab));
 561   EXPECT_FALSE(wc_delegate->IsFullscreenForTabOrPending(second_tab));
 562   EXPECT_FALSE(GetFullscreenController()->IsWindowFullscreenForTabOrPending());
 563   // TODO(miu): Need to make an adjustment to content::WebContentsViewMac for
 564   // the following to work:
 565 #if !defined(OS_MACOSX)
 566   EXPECT_EQ(kCaptureSize, first_tab->GetViewBounds().size());
 567 #endif
 568
 569   // Switch back to the first tab and exit fullscreen.
 570   browser()->tab_strip_model()->ActivateTabAt(0, true);
 571   EXPECT_FALSE(browser()->window()->IsFullscreen());
 572   EXPECT_TRUE(wc_delegate->IsFullscreenForTabOrPending(first_tab));
 573   EXPECT_FALSE(wc_delegate->IsFullscreenForTabOrPending(second_tab));
 574   EXPECT_FALSE(GetFullscreenController()->IsWindowFullscreenForTabOrPending());
 575   ASSERT_TRUE(InvokeEvent(TAB_FULLSCREEN_FALSE));
 576   EXPECT_FALSE(browser()->window()->IsFullscreen());
 577   EXPECT_FALSE(wc_delegate->IsFullscreenForTabOrPending(first_tab));
 578   EXPECT_FALSE(wc_delegate->IsFullscreenForTabOrPending(second_tab));
 579   EXPECT_FALSE(GetFullscreenController()->IsWindowFullscreenForTabOrPending());
 580 }
 581
 582 // Tests that, in a browser configured for Fullscreen-Within-Tab mode, more than
 583 // one tab can be in fullscreen mode at the same time without interfering with
 584 // each other.  One tab is being screen-captured and is toggled into fullscreen
 585 // mode, and then the user switches to another tab not being screen-captured and
 586 // fullscreens it.  The first tab's fullscreen toggle does not affect the
 587 // browser window fullscreen, while the second one's does.  Then, the order of
 588 // operations is reversed.
 589 //
 590 // See 'FullscreenWithinTab Note' in fullscreen_controller.h.
 591 TEST_F(FullscreenControllerStateUnitTest, TwoFullscreenedTabsOneCaptured) {
 592   content::WebContentsDelegate* const wc_delegate =
 593       static_cast<content::WebContentsDelegate*>(browser());
 594   ASSERT_TRUE(wc_delegate->EmbedsFullscreenWidget());
 595
 596   AddTab(browser(), GURL(url::kAboutBlankURL));
 597   AddTab(browser(), GURL(url::kAboutBlankURL));
 598   content::WebContents* const first_tab =
 599       browser()->tab_strip_model()->GetWebContentsAt(0);
 600   content::WebContents* const second_tab =
 601       browser()->tab_strip_model()->GetWebContentsAt(1);
 602
 603   // Start capturing the first tab, fullscreen it, then switch to the second tab
 604   // and fullscreen that.  The second tab will cause the browser window to
 605   // expand to fill the screen.
 606   browser()->tab_strip_model()->ActivateTabAt(0, true);
 607   const gfx::Size kCaptureSize(1280, 720);
 608   first_tab->IncrementCapturerCount(kCaptureSize);
 609   ASSERT_TRUE(InvokeEvent(TAB_FULLSCREEN_TRUE));
 610   EXPECT_FALSE(browser()->window()->IsFullscreen());
 611   EXPECT_TRUE(wc_delegate->IsFullscreenForTabOrPending(first_tab));
 612   EXPECT_FALSE(wc_delegate->IsFullscreenForTabOrPending(second_tab));
 613   EXPECT_FALSE(GetFullscreenController()->IsWindowFullscreenForTabOrPending());
 614   browser()->tab_strip_model()->ActivateTabAt(1, true);
 615   ASSERT_TRUE(InvokeEvent(TAB_FULLSCREEN_TRUE));
 616   ASSERT_TRUE(InvokeEvent(WINDOW_CHANGE));
 617   EXPECT_TRUE(browser()->window()->IsFullscreen());
 618   EXPECT_TRUE(wc_delegate->IsFullscreenForTabOrPending(first_tab));
 619   EXPECT_TRUE(wc_delegate->IsFullscreenForTabOrPending(second_tab));
 620   EXPECT_TRUE(GetFullscreenController()->IsWindowFullscreenForTabOrPending());
 621
 622   // Now exit fullscreen while still in the second tab.  The browser window
 623   // should no longer be fullscreened.
 624   ASSERT_TRUE(InvokeEvent(TAB_FULLSCREEN_FALSE));
 625   ASSERT_TRUE(InvokeEvent(WINDOW_CHANGE));
 626   EXPECT_FALSE(browser()->window()->IsFullscreen());
 627   EXPECT_TRUE(wc_delegate->IsFullscreenForTabOrPending(first_tab));
 628   EXPECT_FALSE(wc_delegate->IsFullscreenForTabOrPending(second_tab));
 629   EXPECT_FALSE(GetFullscreenController()->IsWindowFullscreenForTabOrPending());
 630
 631   // Finally, exit fullscreen on the captured tab.
 632   browser()->tab_strip_model()->ActivateTabAt(0, true);
 633   ASSERT_TRUE(InvokeEvent(TAB_FULLSCREEN_FALSE));
 634   EXPECT_FALSE(browser()->window()->IsFullscreen());
 635   EXPECT_FALSE(wc_delegate->IsFullscreenForTabOrPending(first_tab));
 636   EXPECT_FALSE(wc_delegate->IsFullscreenForTabOrPending(second_tab));
 637   EXPECT_FALSE(GetFullscreenController()->IsWindowFullscreenForTabOrPending());
 638 }
 639
 640 // Tests that, in a browser configured for Fullscreen-Within-Tab mode, more than
 641 // one tab can be in fullscreen mode at the same time.  This is like the
 642 // TwoFullscreenedTabsOneCaptured test above, except that the screen-captured
 643 // tab exits fullscreen mode while the second tab is still in the foreground.
 644 // When the first tab exits fullscreen, the fullscreen state of the second tab
 645 // and the browser window should remain unchanged.
 646 //
 647 // See 'FullscreenWithinTab Note' in fullscreen_controller.h.
 648 TEST_F(FullscreenControllerStateUnitTest,
 649        BackgroundCapturedTabExitsFullscreen) {
 650   content::WebContentsDelegate* const wc_delegate =
 651       static_cast<content::WebContentsDelegate*>(browser());
 652   ASSERT_TRUE(wc_delegate->EmbedsFullscreenWidget());
 653
 654   AddTab(browser(), GURL(url::kAboutBlankURL));
 655   AddTab(browser(), GURL(url::kAboutBlankURL));
 656   content::WebContents* const first_tab =
 657       browser()->tab_strip_model()->GetWebContentsAt(0);
 658   content::WebContents* const second_tab =
 659       browser()->tab_strip_model()->GetWebContentsAt(1);
 660
 661   // Start capturing the first tab, fullscreen it, then switch to the second tab
 662   // and fullscreen that.  The second tab will cause the browser window to
 663   // expand to fill the screen.
 664   browser()->tab_strip_model()->ActivateTabAt(0, true);
 665   const gfx::Size kCaptureSize(1280, 720);
 666   first_tab->IncrementCapturerCount(kCaptureSize);
 667   ASSERT_TRUE(InvokeEvent(TAB_FULLSCREEN_TRUE));
 668   EXPECT_FALSE(browser()->window()->IsFullscreen());
 669   EXPECT_TRUE(wc_delegate->IsFullscreenForTabOrPending(first_tab));
 670   EXPECT_FALSE(wc_delegate->IsFullscreenForTabOrPending(second_tab));
 671   EXPECT_FALSE(GetFullscreenController()->IsWindowFullscreenForTabOrPending());
 672   browser()->tab_strip_model()->ActivateTabAt(1, true);
 673   ASSERT_TRUE(InvokeEvent(TAB_FULLSCREEN_TRUE));
 674   ASSERT_TRUE(InvokeEvent(WINDOW_CHANGE));
 675   EXPECT_TRUE(browser()->window()->IsFullscreen());
 676   EXPECT_TRUE(wc_delegate->IsFullscreenForTabOrPending(first_tab));
 677   EXPECT_TRUE(wc_delegate->IsFullscreenForTabOrPending(second_tab));
 678   EXPECT_TRUE(GetFullscreenController()->IsWindowFullscreenForTabOrPending());
 679
 680   // Now, the first tab (backgrounded) exits fullscreen.  This should not affect
 681   // the second tab's fullscreen, nor the state of the browser window.
 682   GetFullscreenController()->ExitFullscreenModeForTab(first_tab);
 683   EXPECT_TRUE(browser()->window()->IsFullscreen());
 684   EXPECT_FALSE(wc_delegate->IsFullscreenForTabOrPending(first_tab));
 685   EXPECT_TRUE(wc_delegate->IsFullscreenForTabOrPending(second_tab));
 686   EXPECT_TRUE(GetFullscreenController()->IsWindowFullscreenForTabOrPending());
 687
 688   // Finally, exit fullscreen on the second tab.
 689   ASSERT_TRUE(InvokeEvent(TAB_FULLSCREEN_FALSE));
 690   ASSERT_TRUE(InvokeEvent(WINDOW_CHANGE));
 691   EXPECT_FALSE(browser()->window()->IsFullscreen());
 692   EXPECT_FALSE(wc_delegate->IsFullscreenForTabOrPending(first_tab));
 693   EXPECT_FALSE(wc_delegate->IsFullscreenForTabOrPending(second_tab));
 694   EXPECT_FALSE(GetFullscreenController()->IsWindowFullscreenForTabOrPending());
 695 }
 696
 697 // Tests that, in a browser configured for Fullscreen-Within-Tab mode,
 698 // fullscreening a screen-captured tab will NOT cause any fullscreen state
 699 // change to the browser window. Then, toggling Browser Fullscreen mode should
 700 // fullscreen the browser window, but this should behave fully independently of
 701 // the tab's fullscreen state.
 702 //
 703 // See 'FullscreenWithinTab Note' in fullscreen_controller.h.
 704 TEST_F(FullscreenControllerStateUnitTest,
 705        OneCapturedTabFullscreenedBeforeBrowserFullscreen) {
 706   content::WebContentsDelegate* const wc_delegate =
 707       static_cast<content::WebContentsDelegate*>(browser());
 708   ASSERT_TRUE(wc_delegate->EmbedsFullscreenWidget());
 709
 710   AddTab(browser(), GURL(url::kAboutBlankURL));
 711   content::WebContents* const tab =
 712       browser()->tab_strip_model()->GetWebContentsAt(0);
 713
 714   // Start capturing the tab and fullscreen it.  The state of the browser window
 715   // should remain unchanged.
 716   browser()->tab_strip_model()->ActivateTabAt(0, true);
 717   const gfx::Size kCaptureSize(1280, 720);
 718   tab->IncrementCapturerCount(kCaptureSize);
 719   ASSERT_TRUE(InvokeEvent(TAB_FULLSCREEN_TRUE));
 720   EXPECT_TRUE(wc_delegate->IsFullscreenForTabOrPending(tab));
 721   EXPECT_FALSE(GetFullscreenController()->IsWindowFullscreenForTabOrPending());
 722   EXPECT_FALSE(GetFullscreenController()->IsFullscreenForBrowser());
 723
 724   // Now, toggle into Browser Fullscreen mode.  The browser window should now be
 725   // fullscreened.
 726   ASSERT_TRUE(InvokeEvent(TOGGLE_FULLSCREEN));
 727   ASSERT_TRUE(InvokeEvent(WINDOW_CHANGE));
 728   EXPECT_TRUE(wc_delegate->IsFullscreenForTabOrPending(tab));
 729   EXPECT_FALSE(GetFullscreenController()->IsWindowFullscreenForTabOrPending());
 730   EXPECT_TRUE(GetFullscreenController()->IsFullscreenForBrowser());
 731
 732   // Now, toggle back out of Browser Fullscreen mode.  The browser window exits
 733   // fullscreen mode, but the tab stays in fullscreen mode.
 734   ASSERT_TRUE(InvokeEvent(TOGGLE_FULLSCREEN));
 735   ASSERT_TRUE(InvokeEvent(WINDOW_CHANGE));
 736   EXPECT_TRUE(wc_delegate->IsFullscreenForTabOrPending(tab));
 737   EXPECT_FALSE(GetFullscreenController()->IsWindowFullscreenForTabOrPending());
 738   EXPECT_FALSE(GetFullscreenController()->IsFullscreenForBrowser());
 739
 740   // Finally, toggle back into Browser Fullscreen mode and then toggle out of
 741   // tab fullscreen mode.  The browser window should stay fullscreened, while
 742   // the tab exits fullscreen mode.
 743   ASSERT_TRUE(InvokeEvent(TOGGLE_FULLSCREEN));
 744   ASSERT_TRUE(InvokeEvent(WINDOW_CHANGE));
 745   ASSERT_TRUE(InvokeEvent(TAB_FULLSCREEN_FALSE));
 746   EXPECT_FALSE(wc_delegate->IsFullscreenForTabOrPending(tab));
 747   EXPECT_FALSE(GetFullscreenController()->IsWindowFullscreenForTabOrPending());
 748   EXPECT_TRUE(GetFullscreenController()->IsFullscreenForBrowser());
 749 }
 750
 751 // Tests that the state of a fullscreened, screen-captured tab is preserved if
 752 // the tab is detached from one Browser window and attached to another.
 753 //
 754 // See 'FullscreenWithinTab Note' in fullscreen_controller.h.
 755 TEST_F(FullscreenControllerStateUnitTest,
 756        CapturedFullscreenedTabTransferredBetweenBrowserWindows) {
 757   content::WebContentsDelegate* const wc_delegate =
 758       static_cast<content::WebContentsDelegate*>(browser());
 759   ASSERT_TRUE(wc_delegate->EmbedsFullscreenWidget());
 760
 761   AddTab(browser(), GURL(url::kAboutBlankURL));
 762   AddTab(browser(), GURL(url::kAboutBlankURL));
 763   content::WebContents* const tab =
 764       browser()->tab_strip_model()->GetWebContentsAt(0);
 765
 766   // Activate the first tab and tell its WebContents it is being captured.
 767   browser()->tab_strip_model()->ActivateTabAt(0, true);
 768   const gfx::Size kCaptureSize(1280, 720);
 769   tab->IncrementCapturerCount(kCaptureSize);
 770   ASSERT_FALSE(browser()->window()->IsFullscreen());
 771   ASSERT_FALSE(wc_delegate->IsFullscreenForTabOrPending(tab));
 772   ASSERT_FALSE(GetFullscreenController()->IsWindowFullscreenForTabOrPending());
 773
 774   // Enter tab fullscreen.  Since the tab is being captured, the browser window
 775   // should not expand to fill the screen.
 776   ASSERT_TRUE(InvokeEvent(TAB_FULLSCREEN_TRUE));
 777   EXPECT_FALSE(browser()->window()->IsFullscreen());
 778   EXPECT_TRUE(wc_delegate->IsFullscreenForTabOrPending(tab));
 779   EXPECT_FALSE(GetFullscreenController()->IsWindowFullscreenForTabOrPending());
 780
 781   // Create the second browser window.
 782   const scoped_ptr<BrowserWindow> second_browser_window(CreateBrowserWindow());
 783   const scoped_ptr<Browser> second_browser(CreateBrowser(
 784       browser()->profile(),
 785       browser()->type(),
 786       false,
 787       browser()->host_desktop_type(),
 788       second_browser_window.get()));
 789   AddTab(second_browser.get(), GURL(url::kAboutBlankURL));
 790   content::WebContentsDelegate* const second_wc_delegate =
 791       static_cast<content::WebContentsDelegate*>(second_browser.get());
 792
 793   // Detach the tab from the first browser window and attach it to the second.
 794   // The tab should remain in fullscreen mode and neither browser window should
 795   // have expanded. It is correct for both FullscreenControllers to agree the
 796   // tab is in fullscreen mode.
 797   browser()->tab_strip_model()->DetachWebContentsAt(0);
 798   second_browser->tab_strip_model()->
 799       InsertWebContentsAt(0, tab, TabStripModel::ADD_ACTIVE);
 800   EXPECT_FALSE(browser()->window()->IsFullscreen());
 801   EXPECT_FALSE(second_browser->window()->IsFullscreen());
 802   EXPECT_TRUE(wc_delegate->IsFullscreenForTabOrPending(tab));
 803   EXPECT_TRUE(second_wc_delegate->IsFullscreenForTabOrPending(tab));
 804   EXPECT_FALSE(GetFullscreenController()->IsWindowFullscreenForTabOrPending());
 805   EXPECT_FALSE(second_browser->exclusive_access_manager()
 806                    ->fullscreen_controller()
 807                    ->IsWindowFullscreenForTabOrPending());
 808
 809   // Now, detach and reattach it back to the first browser window.  Again, the
 810   // tab should remain in fullscreen mode and neither browser window should have
 811   // expanded.
 812   second_browser->tab_strip_model()->DetachWebContentsAt(0);
 813   browser()->tab_strip_model()->
 814       InsertWebContentsAt(0, tab, TabStripModel::ADD_ACTIVE);
 815   EXPECT_FALSE(browser()->window()->IsFullscreen());
 816   EXPECT_FALSE(second_browser->window()->IsFullscreen());
 817   EXPECT_TRUE(wc_delegate->IsFullscreenForTabOrPending(tab));
 818   EXPECT_TRUE(second_wc_delegate->IsFullscreenForTabOrPending(tab));
 819   EXPECT_FALSE(GetFullscreenController()->IsWindowFullscreenForTabOrPending());
 820   EXPECT_FALSE(second_browser->exclusive_access_manager()
 821                    ->fullscreen_controller()
 822                    ->IsWindowFullscreenForTabOrPending());
 823
 824   // Exit fullscreen.
 825   ASSERT_TRUE(InvokeEvent(TAB_FULLSCREEN_FALSE));
 826   EXPECT_FALSE(browser()->window()->IsFullscreen());
 827   EXPECT_FALSE(wc_delegate->IsFullscreenForTabOrPending(tab));
 828   EXPECT_FALSE(second_wc_delegate->IsFullscreenForTabOrPending(tab));
 829   EXPECT_FALSE(GetFullscreenController()->IsWindowFullscreenForTabOrPending());
 830   EXPECT_FALSE(second_browser->exclusive_access_manager()
 831                    ->fullscreen_controller()
 832                    ->IsWindowFullscreenForTabOrPending());
 833
 834   // Required tear-down specific to this test.
 835   second_browser->tab_strip_model()->CloseAllTabs();
 836 }