Move MaximizeModeController into ash/common

ash/common/wm/maximize_mode/maximize_mode_controller.cc

 // Copyright 2014 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/maximize_mode/maximize_mode_controller.h"
+#include "ash/common/wm/maximize_mode/maximize_mode_controller.h"
 
 #include <utility>
 
-#include "ash/accelerators/accelerator_controller.h"
-#include "ash/accelerators/accelerator_table.h"
 #include "ash/common/ash_switches.h"
 #include "ash/common/wm/maximize_mode/maximize_mode_window_manager.h"
+#include "ash/common/wm/maximize_mode/scoped_disable_internal_mouse_and_keyboard.h"
 #include "ash/common/wm_shell.h"
-#include "ash/display/display_manager.h"
-#include "ash/shell.h"
-#include "ash/wm/maximize_mode/scoped_disable_internal_mouse_and_keyboard.h"
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
 #include "base/time/default_tick_clock.h"
 #include "base/time/tick_clock.h"
 #include "ui/base/accelerators/accelerator.h"
 #include "ui/display/display.h"
 #include "ui/events/event.h"
 #include "ui/events/keycodes/keyboard_codes.h"
 #include "ui/gfx/geometry/vector3d_f.h"
 
-#if defined(USE_X11)
-#include "ash/wm/maximize_mode/scoped_disable_internal_mouse_and_keyboard_x11.h"
-#endif
-
-#if defined(USE_OZONE)
-#include "ash/wm/maximize_mode/scoped_disable_internal_mouse_and_keyboard_ozone.h"
-#endif
-
 #if defined(OS_CHROMEOS)
 #include "chromeos/dbus/dbus_thread_manager.h"
 #include "ui/chromeos/accelerometer/accelerometer_util.h"
 #endif  // OS_CHROMEOS
 
 namespace ash {
 
 namespace {
 
 #if defined(OS_CHROMEOS)
@@ skipping 45 matching lines @@
   return std::abs(
              ui::ConvertAccelerometerReadingToVector3dF(
                  update.get(chromeos::ACCELEROMETER_SOURCE_ATTACHED_KEYBOARD))
                  .Length() -
              ui::ConvertAccelerometerReadingToVector3dF(
                  update.get(chromeos::ACCELEROMETER_SOURCE_SCREEN))
                  .Length()) <= kNoisyMagnitudeDeviation;
 }
 #endif  // OS_CHROMEOS
 
+bool IsEnabled() {
+  return base::CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kAshEnableTouchView);
+}
+
 }  // namespace
 
 MaximizeModeController::MaximizeModeController()
     : have_seen_accelerometer_data_(false),
       touchview_usage_interval_start_time_(base::Time::Now()),
       tick_clock_(new base::DefaultTickClock()),
 #if defined(OS_CHROMEOS)
       tablet_mode_switch_is_on_(false),
 #endif
       lid_is_closed_(false) {
   WmShell::Get()->AddShellObserver(this);
   WmShell::Get()->RecordUserMetricsAction(UMA_MAXIMIZE_MODE_INITIALLY_DISABLED);
 
-#if defined(OS_CHROMEOS)
   // TODO(jonross): Do not create MaximizeModeController if the flag is
   // unavailable. This will require refactoring
   // IsMaximizeModeWindowManagerEnabled to check for the existance of the
   // controller.
-  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kAshEnableTouchView)) {
+  const bool is_enabled = IsEnabled();
+  if (is_enabled)
+    WmShell::Get()->AddDisplayObserver(this);
+
+#if defined(OS_CHROMEOS)
+  if (is_enabled)
     chromeos::AccelerometerReader::GetInstance()->AddObserver(this);
-    Shell::GetInstance()->window_tree_host_manager()->AddObserver(this);
-  }
   chromeos::DBusThreadManager::Get()->GetPowerManagerClient()->AddObserver(
       this);
 #endif  // OS_CHROMEOS
 }
 
 MaximizeModeController::~MaximizeModeController() {
   WmShell::Get()->RemoveShellObserver(this);
+  const bool is_enabled = IsEnabled();
+  if (is_enabled)
+    WmShell::Get()->RemoveDisplayObserver(this);
+
 #if defined(OS_CHROMEOS)
-  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kAshEnableTouchView)) {
+  if (is_enabled)
     chromeos::AccelerometerReader::GetInstance()->RemoveObserver(this);
-    Shell::GetInstance()->window_tree_host_manager()->RemoveObserver(this);
-  }
   chromeos::DBusThreadManager::Get()->GetPowerManagerClient()->RemoveObserver(
       this);
 #endif  // OS_CHROMEOS
 }
 
 bool MaximizeModeController::CanEnterMaximizeMode() {
   // If we have ever seen accelerometer data, then HandleHingeRotation may
   // trigger maximize mode at some point in the future.
   // The --enable-touch-view-testing switch can also mean that we may enter
   // maximize mode.
   // TODO(mgiuca): This can result in false positives, as it returns true for
   // any device with an accelerometer. Have TouchView-enabled devices explicitly
   // set a flag, and change this implementation to simply return true iff the
   // flag is present (http://crbug.com/457445).
   return have_seen_accelerometer_data_ ||
          base::CommandLine::ForCurrentProcess()->HasSwitch(
              switches::kAshEnableTouchViewTesting);
 }
 
 // TODO(jcliang): Hide or remove EnableMaximizeModeWindowManager
 // (http://crbug.com/620241).
 void MaximizeModeController::EnableMaximizeModeWindowManager(
     bool should_enable) {
   bool is_enabled = !!maximize_mode_window_manager_.get();
   if (should_enable == is_enabled)
     return;
 
-  Shell* shell = Shell::GetInstance();
+  WmShell* shell = WmShell::Get();
 
   if (should_enable) {
     maximize_mode_window_manager_.reset(new MaximizeModeWindowManager());
     // TODO(jonross): Move the maximize mode notifications from ShellObserver
     // to MaximizeModeController::Observer
-    WmShell::Get()->RecordUserMetricsAction(UMA_MAXIMIZE_MODE_ENABLED);
+    shell->RecordUserMetricsAction(UMA_MAXIMIZE_MODE_ENABLED);
     shell->OnMaximizeModeStarted();
   } else {
     maximize_mode_window_manager_.reset();
-    WmShell::Get()->RecordUserMetricsAction(UMA_MAXIMIZE_MODE_DISABLED);
+    shell->RecordUserMetricsAction(UMA_MAXIMIZE_MODE_DISABLED);
     shell->OnMaximizeModeEnded();
   }
 }
 
 bool MaximizeModeController::IsMaximizeModeWindowManagerEnabled() const {
   return maximize_mode_window_manager_.get() != NULL;
 }
 
 void MaximizeModeController::AddWindow(WmWindow* window) {
   if (IsMaximizeModeWindowManagerEnabled())
     maximize_mode_window_manager_->AddWindow(window);
 }
 
 #if defined(OS_CHROMEOS)
 void MaximizeModeController::OnAccelerometerUpdated(
     scoped_refptr<const chromeos::AccelerometerUpdate> update) {
   bool first_accelerometer_update = !have_seen_accelerometer_data_;
   have_seen_accelerometer_data_ = true;
 
   if (!update->has(chromeos::ACCELEROMETER_SOURCE_SCREEN))
     return;
 
   if (!display::Display::HasInternalDisplay())
     return;
 
-  if (!Shell::GetInstance()->display_manager()->IsActiveDisplayId(
+  if (!WmShell::Get()->IsActiveDisplayId(
           display::Display::InternalDisplayId())) {
     return;
   }
 
   // Whether or not we enter maximize mode affects whether we handle screen
   // rotation, so determine whether to enter maximize mode first.
   if (!update->has(chromeos::ACCELEROMETER_SOURCE_ATTACHED_KEYBOARD)) {
     if (first_accelerometer_update)
       EnterMaximizeMode();
   } else if (ui::IsAccelerometerReadingStable(
@@ skipping 102 matching lines @@
              lid_angle >= kEnterMaximizeModeAngle &&
              (is_angle_stable || !WasLidOpenedRecently())) {
     EnterMaximizeMode();
   }
 }
 #endif  // OS_CHROMEOS
 
 void MaximizeModeController::EnterMaximizeMode() {
   // Always reset first to avoid creation before destruction of a previous
   // object.
-  event_blocker_.reset();
-#if defined(USE_X11)
-  event_blocker_.reset(new ScopedDisableInternalMouseAndKeyboardX11);
-#elif defined(USE_OZONE)
-  event_blocker_.reset(new ScopedDisableInternalMouseAndKeyboardOzone);
-#endif
+  event_blocker_ =
+      WmShell::Get()->CreateScopedDisableInternalMouseAndKeyboard();
 
   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kAshEnableTouchViewTesting)) {
     // We don't let accelerometer updates interfere with the maximize mode
     // status as set by the touch-view-testing keyboard shortcut.
     return;
   }
 
   if (IsMaximizeModeWindowManagerEnabled())
     return;
@@ skipping 21 matching lines @@
 }
 
 // Called after maximize mode has ended, windows might still be returning to
 // their original position.
 void MaximizeModeController::OnMaximizeModeEnded() {
   RecordTouchViewUsageInterval(TOUCH_VIEW_INTERVAL_ACTIVE);
 }
 
 void MaximizeModeController::OnDisplayConfigurationChanged() {
   if (!display::Display::HasInternalDisplay() ||
-      !Shell::GetInstance()->display_manager()->IsActiveDisplayId(
+      !WmShell::Get()->IsActiveDisplayId(
           display::Display::InternalDisplayId())) {
     LeaveMaximizeMode();
   }
 }
 
 void MaximizeModeController::RecordTouchViewUsageInterval(
     TouchViewIntervalType type) {
   if (!CanEnterMaximizeMode())
     return;
 
@@ skipping 52 matching lines @@
   return elapsed_time.InSeconds() <= kLidRecentlyOpenedDurationSeconds;
 }
 
 void MaximizeModeController::SetTickClockForTest(
     std::unique_ptr<base::TickClock> tick_clock) {
   DCHECK(tick_clock_);
   tick_clock_ = std::move(tick_clock);
 }
 
 }  // namespace ash