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| 1 // Copyright 2014 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/tablet_mode/tablet_mode_controller.h" | |
| 6 | |
| 7 #include <utility> | |
| 8 | |
| 9 #include "ash/ash_switches.h" | |
| 10 #include "ash/shell.h" | |
| 11 #include "ash/shell_port.h" | |
| 12 #include "ash/wm/tablet_mode/scoped_disable_internal_mouse_and_keyboard.h" | |
| 13 #include "ash/wm/tablet_mode/tablet_mode_window_manager.h" | |
| 14 #include "base/bind.h" | |
| 15 #include "base/command_line.h" | |
| 16 #include "base/metrics/histogram_macros.h" | |
| 17 #include "base/time/default_tick_clock.h" | |
| 18 #include "base/time/tick_clock.h" | |
| 19 #include "chromeos/dbus/dbus_thread_manager.h" | |
| 20 #include "ui/base/accelerators/accelerator.h" | |
| 21 #include "ui/chromeos/accelerometer/accelerometer_util.h" | |
| 22 #include "ui/display/display.h" | |
| 23 #include "ui/events/event.h" | |
| 24 #include "ui/events/keycodes/keyboard_codes.h" | |
| 25 #include "ui/gfx/geometry/vector3d_f.h" | |
| 26 | |
| 27 namespace ash { | |
| 28 | |
| 29 namespace { | |
| 30 | |
| 31 // The hinge angle at which to enter tablet mode. | |
| 32 const float kEnterTabletModeAngle = 200.0f; | |
| 33 | |
| 34 // The angle at which to exit tablet mode, this is specifically less than the | |
| 35 // angle to enter tablet mode to prevent rapid toggling when near the angle. | |
| 36 const float kExitTabletModeAngle = 160.0f; | |
| 37 | |
| 38 // Defines a range for which accelerometer readings are considered accurate. | |
| 39 // When the lid is near open (or near closed) the accelerometer readings may be | |
| 40 // inaccurate and a lid that is fully open may appear to be near closed (and | |
| 41 // vice versa). | |
| 42 const float kMinStableAngle = 20.0f; | |
| 43 const float kMaxStableAngle = 340.0f; | |
| 44 | |
| 45 // The time duration to consider the lid to be recently opened. | |
| 46 // This is used to prevent entering tablet mode if an erroneous accelerometer | |
| 47 // reading makes the lid appear to be fully open when the user is opening the | |
| 48 // lid from a closed position. | |
| 49 const int kLidRecentlyOpenedDurationSeconds = 2; | |
| 50 | |
| 51 // When the device approaches vertical orientation (i.e. portrait orientation) | |
| 52 // the accelerometers for the base and lid approach the same values (i.e. | |
| 53 // gravity pointing in the direction of the hinge). When this happens abrupt | |
| 54 // small acceleration perpendicular to the hinge can lead to incorrect hinge | |
| 55 // angle calculations. To prevent this the accelerometer updates will be | |
| 56 // smoothed over time in order to reduce this noise. | |
| 57 // This is the minimum acceleration parallel to the hinge under which to begin | |
| 58 // smoothing in m/s^2. | |
| 59 const float kHingeVerticalSmoothingStart = 7.0f; | |
| 60 // This is the maximum acceleration parallel to the hinge under which smoothing | |
| 61 // will incorporate new acceleration values, in m/s^2. | |
| 62 const float kHingeVerticalSmoothingMaximum = 8.7f; | |
| 63 | |
| 64 // The maximum deviation between the magnitude of the two accelerometers under | |
| 65 // which to detect hinge angle in m/s^2. These accelerometers are attached to | |
| 66 // the same physical device and so should be under the same acceleration. | |
| 67 const float kNoisyMagnitudeDeviation = 1.0f; | |
| 68 | |
| 69 // The angle between chromeos::AccelerometerReadings are considered stable if | |
| 70 // their magnitudes do not differ greatly. This returns false if the deviation | |
| 71 // between the screen and keyboard accelerometers is too high. | |
| 72 bool IsAngleBetweenAccelerometerReadingsStable( | |
| 73 const chromeos::AccelerometerUpdate& update) { | |
| 74 return std::abs( | |
| 75 ui::ConvertAccelerometerReadingToVector3dF( | |
| 76 update.get(chromeos::ACCELEROMETER_SOURCE_ATTACHED_KEYBOARD)) | |
| 77 .Length() - | |
| 78 ui::ConvertAccelerometerReadingToVector3dF( | |
| 79 update.get(chromeos::ACCELEROMETER_SOURCE_SCREEN)) | |
| 80 .Length()) <= kNoisyMagnitudeDeviation; | |
| 81 } | |
| 82 | |
| 83 bool IsEnabled() { | |
| 84 return base::CommandLine::ForCurrentProcess()->HasSwitch( | |
| 85 switches::kAshEnableTouchView); | |
| 86 } | |
| 87 | |
| 88 // Checks the command line to see which force tablet mode is turned on, if | |
| 89 // any. | |
| 90 TabletModeController::ForceTabletMode GetTabletMode() { | |
| 91 base::CommandLine* command_line = base::CommandLine::ForCurrentProcess(); | |
| 92 if (command_line->HasSwitch(switches::kAshForceTabletMode)) { | |
| 93 std::string switch_value = | |
| 94 command_line->GetSwitchValueASCII(switches::kAshForceTabletMode); | |
| 95 if (switch_value == switches::kAshForceTabletModeClamshell) | |
| 96 return TabletModeController::ForceTabletMode::CLAMSHELL; | |
| 97 | |
| 98 if (switch_value == switches::kAshForceTabletModeTouchView) | |
| 99 return TabletModeController::ForceTabletMode::TOUCHVIEW; | |
| 100 } | |
| 101 return TabletModeController::ForceTabletMode::NONE; | |
| 102 } | |
| 103 | |
| 104 } // namespace | |
| 105 | |
| 106 TabletModeController::TabletModeController() | |
| 107 : have_seen_accelerometer_data_(false), | |
| 108 can_detect_lid_angle_(false), | |
| 109 touchview_usage_interval_start_time_(base::Time::Now()), | |
| 110 tick_clock_(new base::DefaultTickClock()), | |
| 111 tablet_mode_switch_is_on_(false), | |
| 112 lid_is_closed_(false), | |
| 113 scoped_session_observer_(this), | |
| 114 weak_factory_(this) { | |
| 115 Shell::Get()->AddShellObserver(this); | |
| 116 ShellPort::Get()->RecordUserMetricsAction( | |
| 117 UMA_MAXIMIZE_MODE_INITIALLY_DISABLED); | |
| 118 | |
| 119 // TODO(jonross): Do not create TabletModeController if the flag is | |
| 120 // unavailable. This will require refactoring | |
| 121 // IsTabletModeWindowManagerEnabled to check for the existance of the | |
| 122 // controller. | |
| 123 if (IsEnabled()) { | |
| 124 ShellPort::Get()->AddDisplayObserver(this); | |
| 125 chromeos::AccelerometerReader::GetInstance()->AddObserver(this); | |
| 126 } | |
| 127 chromeos::PowerManagerClient* power_manager_client = | |
| 128 chromeos::DBusThreadManager::Get()->GetPowerManagerClient(); | |
| 129 power_manager_client->AddObserver(this); | |
| 130 power_manager_client->GetSwitchStates(base::Bind( | |
| 131 &TabletModeController::OnGetSwitchStates, weak_factory_.GetWeakPtr())); | |
| 132 } | |
| 133 | |
| 134 TabletModeController::~TabletModeController() { | |
| 135 Shell::Get()->RemoveShellObserver(this); | |
| 136 | |
| 137 if (IsEnabled()) { | |
| 138 ShellPort::Get()->RemoveDisplayObserver(this); | |
| 139 chromeos::AccelerometerReader::GetInstance()->RemoveObserver(this); | |
| 140 } | |
| 141 chromeos::DBusThreadManager::Get()->GetPowerManagerClient()->RemoveObserver( | |
| 142 this); | |
| 143 } | |
| 144 | |
| 145 bool TabletModeController::CanEnterTabletMode() { | |
| 146 // If we have ever seen accelerometer data, then HandleHingeRotation may | |
| 147 // trigger tablet mode at some point in the future. | |
| 148 // All TouchView-enabled devices can enter tablet mode. | |
| 149 return have_seen_accelerometer_data_ || IsEnabled(); | |
| 150 } | |
| 151 | |
| 152 // TODO(jcliang): Hide or remove EnableTabletModeWindowManager | |
| 153 // (http://crbug.com/620241). | |
| 154 void TabletModeController::EnableTabletModeWindowManager(bool should_enable) { | |
| 155 bool is_enabled = !!tablet_mode_window_manager_.get(); | |
| 156 if (should_enable == is_enabled) | |
| 157 return; | |
| 158 | |
| 159 if (should_enable) { | |
| 160 tablet_mode_window_manager_.reset(new TabletModeWindowManager()); | |
| 161 // TODO(jonross): Move the tablet mode notifications from ShellObserver | |
| 162 // to TabletModeController::Observer | |
| 163 ShellPort::Get()->RecordUserMetricsAction(UMA_MAXIMIZE_MODE_ENABLED); | |
| 164 Shell::Get()->NotifyTabletModeStarted(); | |
| 165 | |
| 166 observers_.ForAllPtrs([](mojom::TouchViewObserver* observer) { | |
| 167 observer->OnTouchViewToggled(true); | |
| 168 }); | |
| 169 | |
| 170 } else { | |
| 171 tablet_mode_window_manager_->SetIgnoreWmEventsForExit(); | |
| 172 Shell::Get()->NotifyTabletModeEnding(); | |
| 173 tablet_mode_window_manager_.reset(); | |
| 174 ShellPort::Get()->RecordUserMetricsAction(UMA_MAXIMIZE_MODE_DISABLED); | |
| 175 Shell::Get()->NotifyTabletModeEnded(); | |
| 176 | |
| 177 observers_.ForAllPtrs([](mojom::TouchViewObserver* observer) { | |
| 178 observer->OnTouchViewToggled(false); | |
| 179 }); | |
| 180 } | |
| 181 } | |
| 182 | |
| 183 bool TabletModeController::IsTabletModeWindowManagerEnabled() const { | |
| 184 return tablet_mode_window_manager_.get() != NULL; | |
| 185 } | |
| 186 | |
| 187 void TabletModeController::AddWindow(aura::Window* window) { | |
| 188 if (IsTabletModeWindowManagerEnabled()) | |
| 189 tablet_mode_window_manager_->AddWindow(window); | |
| 190 } | |
| 191 | |
| 192 void TabletModeController::BindRequest(mojom::TouchViewManagerRequest request) { | |
| 193 bindings_.AddBinding(this, std::move(request)); | |
| 194 } | |
| 195 | |
| 196 void TabletModeController::OnAccelerometerUpdated( | |
| 197 scoped_refptr<const chromeos::AccelerometerUpdate> update) { | |
| 198 if (!AllowEnterExitTabletMode()) | |
| 199 return; | |
| 200 | |
| 201 have_seen_accelerometer_data_ = true; | |
| 202 can_detect_lid_angle_ = | |
| 203 update->has(chromeos::ACCELEROMETER_SOURCE_SCREEN) && | |
| 204 update->has(chromeos::ACCELEROMETER_SOURCE_ATTACHED_KEYBOARD); | |
| 205 | |
| 206 if (!can_detect_lid_angle_) | |
| 207 return; | |
| 208 | |
| 209 if (!display::Display::HasInternalDisplay()) | |
| 210 return; | |
| 211 | |
| 212 if (!ShellPort::Get()->IsActiveDisplayId( | |
| 213 display::Display::InternalDisplayId())) { | |
| 214 return; | |
| 215 } | |
| 216 | |
| 217 // Whether or not we enter tablet mode affects whether we handle screen | |
| 218 // rotation, so determine whether to enter tablet mode first. | |
| 219 if (ui::IsAccelerometerReadingStable(*update, | |
| 220 chromeos::ACCELEROMETER_SOURCE_SCREEN) && | |
| 221 ui::IsAccelerometerReadingStable( | |
| 222 *update, chromeos::ACCELEROMETER_SOURCE_ATTACHED_KEYBOARD) && | |
| 223 IsAngleBetweenAccelerometerReadingsStable(*update)) { | |
| 224 // update.has(chromeos::ACCELEROMETER_SOURCE_ATTACHED_KEYBOARD) | |
| 225 // Ignore the reading if it appears unstable. The reading is considered | |
| 226 // unstable if it deviates too much from gravity and/or the magnitude of the | |
| 227 // reading from the lid differs too much from the reading from the base. | |
| 228 HandleHingeRotation(update); | |
| 229 } | |
| 230 } | |
| 231 | |
| 232 void TabletModeController::LidEventReceived( | |
| 233 chromeos::PowerManagerClient::LidState state, | |
| 234 const base::TimeTicks& time) { | |
| 235 if (!AllowEnterExitTabletMode()) | |
| 236 return; | |
| 237 | |
| 238 const bool open = state == chromeos::PowerManagerClient::LidState::OPEN; | |
| 239 if (open) | |
| 240 last_lid_open_time_ = time; | |
| 241 lid_is_closed_ = !open; | |
| 242 LeaveTabletMode(); | |
| 243 } | |
| 244 | |
| 245 void TabletModeController::TabletModeEventReceived( | |
| 246 chromeos::PowerManagerClient::TabletMode mode, | |
| 247 const base::TimeTicks& time) { | |
| 248 if (!AllowEnterExitTabletMode()) | |
| 249 return; | |
| 250 | |
| 251 const bool on = mode == chromeos::PowerManagerClient::TabletMode::ON; | |
| 252 tablet_mode_switch_is_on_ = on; | |
| 253 // Do not change if docked. | |
| 254 if (!display::Display::HasInternalDisplay() || | |
| 255 !ShellPort::Get()->IsActiveDisplayId( | |
| 256 display::Display::InternalDisplayId())) { | |
| 257 return; | |
| 258 } | |
| 259 // The tablet mode switch activates at 300 degrees, so it is always reliable | |
| 260 // when |on|. However we wish to exit tablet mode at a smaller angle, so | |
| 261 // when |on| is false we ignore if it is possible to calculate the lid angle. | |
| 262 if (on && !IsTabletModeWindowManagerEnabled()) { | |
| 263 EnterTabletMode(); | |
| 264 } else if (!on && IsTabletModeWindowManagerEnabled() && | |
| 265 !can_detect_lid_angle_) { | |
| 266 LeaveTabletMode(); | |
| 267 } | |
| 268 } | |
| 269 | |
| 270 void TabletModeController::SuspendImminent() { | |
| 271 // The system is about to suspend, so record TouchView usage interval metrics | |
| 272 // based on whether TouchView mode is currently active. | |
| 273 RecordTouchViewUsageInterval(CurrentTouchViewIntervalType()); | |
| 274 } | |
| 275 | |
| 276 void TabletModeController::SuspendDone(const base::TimeDelta& sleep_duration) { | |
| 277 // We do not want TouchView usage metrics to include time spent in suspend. | |
| 278 touchview_usage_interval_start_time_ = base::Time::Now(); | |
| 279 } | |
| 280 | |
| 281 void TabletModeController::HandleHingeRotation( | |
| 282 scoped_refptr<const chromeos::AccelerometerUpdate> update) { | |
| 283 static const gfx::Vector3dF hinge_vector(1.0f, 0.0f, 0.0f); | |
| 284 gfx::Vector3dF base_reading(ui::ConvertAccelerometerReadingToVector3dF( | |
| 285 update->get(chromeos::ACCELEROMETER_SOURCE_ATTACHED_KEYBOARD))); | |
| 286 gfx::Vector3dF lid_reading(ui::ConvertAccelerometerReadingToVector3dF( | |
| 287 update->get(chromeos::ACCELEROMETER_SOURCE_SCREEN))); | |
| 288 | |
| 289 // As the hinge approaches a vertical angle, the base and lid accelerometers | |
| 290 // approach the same values making any angle calculations highly inaccurate. | |
| 291 // Smooth out instantaneous acceleration when nearly vertical to increase | |
| 292 // accuracy. | |
| 293 float largest_hinge_acceleration = | |
| 294 std::max(std::abs(base_reading.x()), std::abs(lid_reading.x())); | |
| 295 float smoothing_ratio = | |
| 296 std::max(0.0f, std::min(1.0f, (largest_hinge_acceleration - | |
| 297 kHingeVerticalSmoothingStart) / | |
| 298 (kHingeVerticalSmoothingMaximum - | |
| 299 kHingeVerticalSmoothingStart))); | |
| 300 | |
| 301 // We cannot trust the computed lid angle when the device is held vertically. | |
| 302 bool is_angle_reliable = | |
| 303 largest_hinge_acceleration <= kHingeVerticalSmoothingMaximum; | |
| 304 | |
| 305 base_smoothed_.Scale(smoothing_ratio); | |
| 306 base_reading.Scale(1.0f - smoothing_ratio); | |
| 307 base_smoothed_.Add(base_reading); | |
| 308 | |
| 309 lid_smoothed_.Scale(smoothing_ratio); | |
| 310 lid_reading.Scale(1.0f - smoothing_ratio); | |
| 311 lid_smoothed_.Add(lid_reading); | |
| 312 | |
| 313 if (tablet_mode_switch_is_on_) | |
| 314 return; | |
| 315 | |
| 316 // Ignore the component of acceleration parallel to the hinge for the purposes | |
| 317 // of hinge angle calculation. | |
| 318 gfx::Vector3dF base_flattened(base_smoothed_); | |
| 319 gfx::Vector3dF lid_flattened(lid_smoothed_); | |
| 320 base_flattened.set_x(0.0f); | |
| 321 lid_flattened.set_x(0.0f); | |
| 322 | |
| 323 // Compute the angle between the base and the lid. | |
| 324 float lid_angle = 180.0f - gfx::ClockwiseAngleBetweenVectorsInDegrees( | |
| 325 base_flattened, lid_flattened, hinge_vector); | |
| 326 if (lid_angle < 0.0f) | |
| 327 lid_angle += 360.0f; | |
| 328 | |
| 329 bool is_angle_stable = is_angle_reliable && lid_angle >= kMinStableAngle && | |
| 330 lid_angle <= kMaxStableAngle; | |
| 331 | |
| 332 // Clear the last_lid_open_time_ for a stable reading so that there is less | |
| 333 // chance of a delay if the lid is moved from the close state to the fully | |
| 334 // open state very quickly. | |
| 335 if (is_angle_stable) | |
| 336 last_lid_open_time_ = base::TimeTicks(); | |
| 337 | |
| 338 // Toggle tablet mode on or off when corresponding thresholds are passed. | |
| 339 if (IsTabletModeWindowManagerEnabled() && is_angle_stable && | |
| 340 lid_angle <= kExitTabletModeAngle) { | |
| 341 LeaveTabletMode(); | |
| 342 } else if (!IsTabletModeWindowManagerEnabled() && !lid_is_closed_ && | |
| 343 lid_angle >= kEnterTabletModeAngle && | |
| 344 (is_angle_stable || !WasLidOpenedRecently())) { | |
| 345 EnterTabletMode(); | |
| 346 } | |
| 347 } | |
| 348 | |
| 349 void TabletModeController::EnterTabletMode() { | |
| 350 // Always reset first to avoid creation before destruction of a previous | |
| 351 // object. | |
| 352 event_blocker_ = | |
| 353 ShellPort::Get()->CreateScopedDisableInternalMouseAndKeyboard(); | |
| 354 | |
| 355 if (IsTabletModeWindowManagerEnabled()) | |
| 356 return; | |
| 357 EnableTabletModeWindowManager(true); | |
| 358 } | |
| 359 | |
| 360 void TabletModeController::LeaveTabletMode() { | |
| 361 event_blocker_.reset(); | |
| 362 | |
| 363 if (!IsTabletModeWindowManagerEnabled()) | |
| 364 return; | |
| 365 EnableTabletModeWindowManager(false); | |
| 366 } | |
| 367 | |
| 368 // Called after tablet mode has started, windows might still animate though. | |
| 369 void TabletModeController::OnTabletModeStarted() { | |
| 370 RecordTouchViewUsageInterval(TOUCH_VIEW_INTERVAL_INACTIVE); | |
| 371 } | |
| 372 | |
| 373 // Called after tablet mode has ended, windows might still be returning to | |
| 374 // their original position. | |
| 375 void TabletModeController::OnTabletModeEnded() { | |
| 376 RecordTouchViewUsageInterval(TOUCH_VIEW_INTERVAL_ACTIVE); | |
| 377 } | |
| 378 | |
| 379 void TabletModeController::OnShellInitialized() { | |
| 380 force_tablet_mode_ = GetTabletMode(); | |
| 381 if (force_tablet_mode_ == ForceTabletMode::TOUCHVIEW) | |
| 382 EnterTabletMode(); | |
| 383 } | |
| 384 | |
| 385 void TabletModeController::OnDisplayConfigurationChanged() { | |
| 386 if (!display::Display::HasInternalDisplay() || | |
| 387 !ShellPort::Get()->IsActiveDisplayId( | |
| 388 display::Display::InternalDisplayId())) { | |
| 389 LeaveTabletMode(); | |
| 390 } else if (tablet_mode_switch_is_on_ && !IsTabletModeWindowManagerEnabled()) { | |
| 391 // The internal display has returned, as we are exiting docked mode. | |
| 392 // The device is still in tablet mode, so trigger tablet mode, as this | |
| 393 // switch leads to the ignoring of accelerometer events. When the switch is | |
| 394 // not set the next stable accelerometer readings will trigger maximize | |
| 395 // mode. | |
| 396 EnterTabletMode(); | |
| 397 } | |
| 398 } | |
| 399 | |
| 400 void TabletModeController::RecordTouchViewUsageInterval( | |
| 401 TouchViewIntervalType type) { | |
| 402 if (!CanEnterTabletMode()) | |
| 403 return; | |
| 404 | |
| 405 base::Time current_time = base::Time::Now(); | |
| 406 base::TimeDelta delta = current_time - touchview_usage_interval_start_time_; | |
| 407 switch (type) { | |
| 408 case TOUCH_VIEW_INTERVAL_INACTIVE: | |
| 409 UMA_HISTOGRAM_LONG_TIMES("Ash.TouchView.TouchViewInactive", delta); | |
| 410 total_non_touchview_time_ += delta; | |
| 411 break; | |
| 412 case TOUCH_VIEW_INTERVAL_ACTIVE: | |
| 413 UMA_HISTOGRAM_LONG_TIMES("Ash.TouchView.TouchViewActive", delta); | |
| 414 total_touchview_time_ += delta; | |
| 415 break; | |
| 416 } | |
| 417 | |
| 418 touchview_usage_interval_start_time_ = current_time; | |
| 419 } | |
| 420 | |
| 421 TabletModeController::TouchViewIntervalType | |
| 422 TabletModeController::CurrentTouchViewIntervalType() { | |
| 423 if (IsTabletModeWindowManagerEnabled()) | |
| 424 return TOUCH_VIEW_INTERVAL_ACTIVE; | |
| 425 return TOUCH_VIEW_INTERVAL_INACTIVE; | |
| 426 } | |
| 427 | |
| 428 void TabletModeController::AddObserver(mojom::TouchViewObserverPtr observer) { | |
| 429 observer->OnTouchViewToggled(IsTabletModeWindowManagerEnabled()); | |
| 430 observers_.AddPtr(std::move(observer)); | |
| 431 } | |
| 432 | |
| 433 bool TabletModeController::AllowEnterExitTabletMode() const { | |
| 434 return force_tablet_mode_ == ForceTabletMode::NONE; | |
| 435 } | |
| 436 | |
| 437 void TabletModeController::OnChromeTerminating() { | |
| 438 // The system is about to shut down, so record TouchView usage interval | |
| 439 // metrics based on whether TouchView mode is currently active. | |
| 440 RecordTouchViewUsageInterval(CurrentTouchViewIntervalType()); | |
| 441 | |
| 442 if (CanEnterTabletMode()) { | |
| 443 UMA_HISTOGRAM_CUSTOM_COUNTS("Ash.TouchView.TouchViewActiveTotal", | |
| 444 total_touchview_time_.InMinutes(), 1, | |
| 445 base::TimeDelta::FromDays(7).InMinutes(), 50); | |
| 446 UMA_HISTOGRAM_CUSTOM_COUNTS("Ash.TouchView.TouchViewInactiveTotal", | |
| 447 total_non_touchview_time_.InMinutes(), 1, | |
| 448 base::TimeDelta::FromDays(7).InMinutes(), 50); | |
| 449 base::TimeDelta total_runtime = | |
| 450 total_touchview_time_ + total_non_touchview_time_; | |
| 451 if (total_runtime.InSeconds() > 0) { | |
| 452 UMA_HISTOGRAM_PERCENTAGE( | |
| 453 "Ash.TouchView.TouchViewActivePercentage", | |
| 454 100 * total_touchview_time_.InSeconds() / total_runtime.InSeconds()); | |
| 455 } | |
| 456 } | |
| 457 } | |
| 458 | |
| 459 void TabletModeController::OnGetSwitchStates( | |
| 460 chromeos::PowerManagerClient::LidState lid_state, | |
| 461 chromeos::PowerManagerClient::TabletMode tablet_mode) { | |
| 462 LidEventReceived(lid_state, base::TimeTicks::Now()); | |
| 463 TabletModeEventReceived(tablet_mode, base::TimeTicks::Now()); | |
| 464 } | |
| 465 | |
| 466 bool TabletModeController::WasLidOpenedRecently() const { | |
| 467 if (last_lid_open_time_.is_null()) | |
| 468 return false; | |
| 469 | |
| 470 base::TimeTicks now = tick_clock_->NowTicks(); | |
| 471 DCHECK(now >= last_lid_open_time_); | |
| 472 base::TimeDelta elapsed_time = now - last_lid_open_time_; | |
| 473 return elapsed_time.InSeconds() <= kLidRecentlyOpenedDurationSeconds; | |
| 474 } | |
| 475 | |
| 476 void TabletModeController::SetTickClockForTest( | |
| 477 std::unique_ptr<base::TickClock> tick_clock) { | |
| 478 DCHECK(tick_clock_); | |
| 479 tick_clock_ = std::move(tick_clock); | |
| 480 } | |
| 481 | |
| 482 } // namespace ash | |
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Chromium Code Reviews
Issue 2909763002:
Revert of Rename MaximizeMode to TabletMode (Closed)
