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// 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/virtual_keyboard_controller.h"
#include <vector>
#include "ash/common/keyboard/keyboard_ui.h"
#include "ash/common/system/tray/system_tray_notifier.h"
#include "ash/common/wm/maximize_mode/maximize_mode_controller.h"
#include "ash/common/wm_shell.h"
#include "ash/common/wm_window.h"
#include "ash/root_window_controller.h"
#include "ash/shell.h"
#include "base/command_line.h"
#include "base/strings/string_util.h"
#include "ui/display/display.h"
#include "ui/display/screen.h"
#include "ui/events/devices/input_device.h"
#include "ui/events/devices/input_device_manager.h"
#include "ui/events/devices/touchscreen_device.h"
#include "ui/keyboard/keyboard_controller.h"
#include "ui/keyboard/keyboard_switches.h"
#include "ui/keyboard/keyboard_util.h"
namespace ash {
namespace {
// Checks whether smart deployment is enabled.
bool IsSmartVirtualKeyboardEnabled() {
if (base::CommandLine::ForCurrentProcess()->HasSwitch(
keyboard::switches::kEnableVirtualKeyboard)) {
return false;
}
return keyboard::IsSmartDeployEnabled();
}
void MoveKeyboardToDisplayInternal(const int64_t display_id) {
// Remove the keyboard from curent root window controller
WmShell::Get()->keyboard_ui()->Hide();
RootWindowController::ForWindow(
keyboard::KeyboardController::GetInstance()->GetContainerWindow())
->DeactivateKeyboard(keyboard::KeyboardController::GetInstance());
for (RootWindowController* controller :
Shell::GetInstance()->GetAllRootWindowControllers()) {
if (display::Screen::GetScreen()
->GetDisplayNearestWindow(controller->GetRootWindow())
.id() == display_id) {
controller->ActivateKeyboard(keyboard::KeyboardController::GetInstance());
break;
}
}
}
void MoveKeyboardToFirstTouchableDisplay() {
// Move the keyboard to the first display with touch capability.
for (const auto& display : display::Screen::GetScreen()->GetAllDisplays()) {
if (display.touch_support() ==
display::Display::TouchSupport::TOUCH_SUPPORT_AVAILABLE) {
MoveKeyboardToDisplayInternal(display.id());
return;
}
}
}
} // namespace
VirtualKeyboardController::VirtualKeyboardController()
: has_external_keyboard_(false),
has_internal_keyboard_(false),
has_touchscreen_(false),
ignore_external_keyboard_(false) {
WmShell::Get()->AddShellObserver(this);
ui::InputDeviceManager::GetInstance()->AddObserver(this);
UpdateDevices();
}
VirtualKeyboardController::~VirtualKeyboardController() {
WmShell::Get()->RemoveShellObserver(this);
ui::InputDeviceManager::GetInstance()->RemoveObserver(this);
}
void VirtualKeyboardController::OnMaximizeModeStarted() {
if (!IsSmartVirtualKeyboardEnabled()) {
SetKeyboardEnabled(true);
} else {
UpdateKeyboardEnabled();
}
keyboard::SetOverscrollEnabledWithAccessibilityKeyboard(true);
}
void VirtualKeyboardController::OnMaximizeModeEnded() {
if (!IsSmartVirtualKeyboardEnabled()) {
SetKeyboardEnabled(false);
} else {
UpdateKeyboardEnabled();
}
keyboard::SetOverscrollEnabledWithAccessibilityKeyboard(false);
}
void VirtualKeyboardController::OnTouchscreenDeviceConfigurationChanged() {
UpdateDevices();
}
void VirtualKeyboardController::OnKeyboardDeviceConfigurationChanged() {
UpdateDevices();
}
void VirtualKeyboardController::ToggleIgnoreExternalKeyboard() {
ignore_external_keyboard_ = !ignore_external_keyboard_;
UpdateKeyboardEnabled();
}
void VirtualKeyboardController::MoveKeyboardToDisplay(int64_t display_id) {
DCHECK(keyboard::KeyboardController::GetInstance() != nullptr);
DCHECK(display_id != display::kInvalidDisplayId);
aura::Window* container =
keyboard::KeyboardController::GetInstance()->GetContainerWindow();
DCHECK(container != nullptr);
const display::Screen* screen = display::Screen::GetScreen();
const display::Display current_display =
screen->GetDisplayNearestWindow(container);
if (display_id != current_display.id())
MoveKeyboardToDisplayInternal(display_id);
}
void VirtualKeyboardController::MoveKeyboardToTouchableDisplay() {
DCHECK(keyboard::KeyboardController::GetInstance() != nullptr);
aura::Window* container =
keyboard::KeyboardController::GetInstance()->GetContainerWindow();
DCHECK(container != nullptr);
const display::Screen* screen = display::Screen::GetScreen();
const display::Display current_display =
screen->GetDisplayNearestWindow(container);
if (WmShell::Get()->GetFocusedWindow() != nullptr) {
// Move the virtual keyboard to the focused display if that display has
// touch capability or keyboard is locked
const display::Display focused_display =
WmShell::Get()->GetFocusedWindow()->GetDisplayNearestWindow();
if (current_display.id() != focused_display.id() &&
focused_display.id() != display::kInvalidDisplayId &&
focused_display.touch_support() ==
display::Display::TouchSupport::TOUCH_SUPPORT_AVAILABLE) {
MoveKeyboardToDisplayInternal(focused_display.id());
return;
}
}
if (current_display.touch_support() !=
display::Display::TouchSupport::TOUCH_SUPPORT_AVAILABLE) {
// The keyboard is currently on the display without touch capability.
MoveKeyboardToFirstTouchableDisplay();
}
}
void VirtualKeyboardController::UpdateDevices() {
ui::InputDeviceManager* device_data_manager =
ui::InputDeviceManager::GetInstance();
// Checks for touchscreens.
has_touchscreen_ = device_data_manager->GetTouchscreenDevices().size() > 0;
// Checks for keyboards.
has_external_keyboard_ = false;
has_internal_keyboard_ = false;
for (const ui::InputDevice& device :
device_data_manager->GetKeyboardDevices()) {
if (has_internal_keyboard_ && has_external_keyboard_)
break;
ui::InputDeviceType type = device.type;
if (type == ui::InputDeviceType::INPUT_DEVICE_INTERNAL)
has_internal_keyboard_ = true;
if (type == ui::InputDeviceType::INPUT_DEVICE_EXTERNAL)
has_external_keyboard_ = true;
}
// Update keyboard state.
UpdateKeyboardEnabled();
}
void VirtualKeyboardController::UpdateKeyboardEnabled() {
if (!IsSmartVirtualKeyboardEnabled()) {
SetKeyboardEnabled(WmShell::Get()
->maximize_mode_controller()
->IsMaximizeModeWindowManagerEnabled());
return;
}
bool ignore_internal_keyboard = WmShell::Get()
->maximize_mode_controller()
->IsMaximizeModeWindowManagerEnabled();
bool is_internal_keyboard_active =
has_internal_keyboard_ && !ignore_internal_keyboard;
SetKeyboardEnabled(!is_internal_keyboard_active && has_touchscreen_ &&
(!has_external_keyboard_ || ignore_external_keyboard_));
WmShell::Get()
->system_tray_notifier()
->NotifyVirtualKeyboardSuppressionChanged(!is_internal_keyboard_active &&
has_touchscreen_ &&
has_external_keyboard_);
}
void VirtualKeyboardController::SetKeyboardEnabled(bool enabled) {
bool was_enabled = keyboard::IsKeyboardEnabled();
keyboard::SetTouchKeyboardEnabled(enabled);
bool is_enabled = keyboard::IsKeyboardEnabled();
if (is_enabled == was_enabled)
return;
if (is_enabled) {
Shell::GetInstance()->CreateKeyboard();
} else {
Shell::GetInstance()->DeactivateKeyboard();
}
}
} // namespace ash
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