Implement touch exploration touch typing

ash/ash_touch_exploration_manager_chromeos.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/ash_touch_exploration_manager_chromeos.h"
 
 #include "ash/accessibility_delegate.h"
+#include "ash/keyboard/keyboard_observer_register.h"
 #include "ash/root_window_controller.h"
 #include "ash/shared/app_types.h"
 #include "ash/shell.h"
 #include "ash/system/tray/system_tray_notifier.h"
 #include "ash/wm/window_util.h"
 #include "ash/wm_window.h"
 #include "base/command_line.h"
 #include "base/memory/ptr_util.h"
 #include "chromeos/audio/chromeos_sounds.h"
 #include "chromeos/audio/cras_audio_handler.h"
 #include "chromeos/chromeos_switches.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/chromeos/touch_exploration_controller.h"
+#include "ui/keyboard/keyboard_controller.h"
 #include "ui/wm/public/activation_client.h"
 
 namespace ash {
 
 AshTouchExplorationManager::AshTouchExplorationManager(
     RootWindowController* root_window_controller)
     : root_window_controller_(root_window_controller),
       audio_handler_(chromeos::CrasAudioHandler::Get()),
       enable_chromevox_arc_support_(
           base::CommandLine::ForCurrentProcess()->HasSwitch(
-              chromeos::switches::kEnableChromeVoxArcSupport)) {
+              chromeos::switches::kEnableChromeVoxArcSupport)),
+      keyboard_observer_(this) {
+  Shell::Get()->AddShellObserver(this);
   Shell::Get()->system_tray_notifier()->AddAccessibilityObserver(this);
   Shell::Get()->activation_client()->AddObserver(this);
   display::Screen::GetScreen()->AddObserver(this);
   UpdateTouchExplorationState();
 }
 
 AshTouchExplorationManager::~AshTouchExplorationManager() {
   SystemTrayNotifier* system_tray_notifier =
       Shell::Get()->system_tray_notifier();
   if (system_tray_notifier)
     system_tray_notifier->RemoveAccessibilityObserver(this);
   Shell::Get()->activation_client()->RemoveObserver(this);
   display::Screen::GetScreen()->RemoveObserver(this);
+  Shell::Get()->RemoveShellObserver(this);
 }
 
 void AshTouchExplorationManager::OnAccessibilityModeChanged(
     AccessibilityNotificationVisibility notify) {
   UpdateTouchExplorationState();
 }
 
 void AshTouchExplorationManager::SetOutputLevel(int volume) {
   if (volume > 0) {
     if (audio_handler_->IsOutputMuted()) {
@@ skipping 80 matching lines @@
 }
 
 void AshTouchExplorationManager::SetTouchAccessibilityAnchorPoint(
     const gfx::Point& anchor_point) {
   if (touch_exploration_controller_) {
     touch_exploration_controller_->SetTouchAccessibilityAnchorPoint(
         anchor_point);
   }
 }
 
+void AshTouchExplorationManager::OnKeyboardBoundsChanging(
+    const gfx::Rect& new_bounds) {
+  UpdateTouchExplorationState();
+}
+
+void AshTouchExplorationManager::OnKeyboardClosed() {
+  keyboard_observer_.RemoveAll();
+  UpdateTouchExplorationState();
+}
+
+void AshTouchExplorationManager::OnVirtualKeyboardStateChanged(
+    bool activated,
+    aura::Window* root_window) {
+  UpdateKeyboardObserverFromStateChanged(
+      activated, root_window, root_window_controller_->GetRootWindow(),
+      &keyboard_observer_);
+}
+
 void AshTouchExplorationManager::UpdateTouchExplorationState() {
   // See crbug.com/603745 for more details.
   const bool pass_through_surface =
       wm::GetActiveWindow() &&
       wm::GetActiveWindow()->GetProperty(aura::client::kAppType) ==
           static_cast<int>(ash::AppType::ARC_APP) &&
       !enable_chromevox_arc_support_;
 
   const bool spoken_feedback_enabled =
       Shell::Get()->accessibility_delegate()->IsSpokenFeedbackEnabled();
@@ skipping 14 matching lines @@
     if (pass_through_surface) {
       const gfx::Rect work_area = root_window_controller_->GetWindow()
                                       ->GetDisplayNearestWindow()
                                       .work_area();
       touch_exploration_controller_->SetExcludeBounds(work_area);
       SilenceSpokenFeedback();
       Shell::Get()->accessibility_delegate()->ClearFocusHighlight();
     } else {
       touch_exploration_controller_->SetExcludeBounds(gfx::Rect());
     }
+
+    // Virtual keyboard.
+    keyboard::KeyboardController* keyboard_controller =
+        keyboard::KeyboardController::GetInstance();
+    if (keyboard_controller) {
+      touch_exploration_controller_->SetLiftActivationBounds(
+          keyboard_controller->current_keyboard_bounds());
+    }
   } else {
     touch_exploration_controller_.reset();
   }
 }
 
 bool AshTouchExplorationManager::VolumeAdjustSoundEnabled() {
   return !base::CommandLine::ForCurrentProcess()->HasSwitch(
       chromeos::switches::kDisableVolumeAdjustSound);
 }
 
 }  // namespace ash