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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/keyboard/virtual_keyboard_controller.h"
#include <vector>
#include "ash/constants/ash_features.h"
#include "ash/ime/ime_controller_impl.h"
#include "ash/keyboard/keyboard_controller_impl.h"
#include "ash/keyboard/ui/keyboard_ui_controller.h"
#include "ash/keyboard/ui/keyboard_util.h"
#include "ash/public/cpp/shell_window_ids.h"
#include "ash/session/session_controller_impl.h"
#include "ash/shell.h"
#include "ash/system/tray/system_tray_notifier.h"
#include "ash/wm/tablet_mode/tablet_mode_controller.h"
#include "base/feature_list.h"
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/strings/string_util.h"
#include "base/task/single_thread_task_runner.h"
#include "ui/base/emoji/emoji_panel_helper.h"
#include "ui/display/display.h"
#include "ui/display/screen.h"
#include "ui/events/devices/device_data_manager.h"
#include "ui/events/devices/input_device.h"
namespace ash {
namespace {
void ResetVirtualKeyboard() {
keyboard::SetKeyboardEnabledFromShelf(false);
// This function can get called asynchronously after the shell has been
// destroyed, so check for an instance.
if (Shell::HasInstance()) {
// Reset the keyset after disabling the virtual keyboard to prevent the IME
// extension from accidentally loading the default keyset while it's
// shutting down. See https://crbug.com/875456.
Shell::Get()->ime_controller()->OverrideKeyboardKeyset(
input_method::ImeKeyset::kNone);
}
}
} // namespace
VirtualKeyboardController::VirtualKeyboardController()
: ignore_external_keyboard_(false),
ignore_internal_keyboard_(false),
bluetooth_devices_observer_(
std::make_unique<BluetoothDevicesObserver>(base::BindRepeating(
&VirtualKeyboardController::OnBluetoothAdapterOrDeviceChanged,
base::Unretained(this)))) {
Shell::Get()->tablet_mode_controller()->AddObserver(this);
Shell::Get()->session_controller()->AddObserver(this);
ui::DeviceDataManager::GetInstance()->AddObserver(this);
UpdateDevices();
// Set callback to show the emoji panel
ui::SetTabletModeShowEmojiKeyboardCallback(base::BindRepeating(
&VirtualKeyboardController::ForceShowKeyboardWithKeyset,
base::Unretained(this), input_method::ImeKeyset::kEmoji));
keyboard::KeyboardUIController::Get()->AddObserver(this);
}
VirtualKeyboardController::~VirtualKeyboardController() {
keyboard::KeyboardUIController::Get()->RemoveObserver(this);
if (Shell::Get()->tablet_mode_controller())
Shell::Get()->tablet_mode_controller()->RemoveObserver(this);
if (Shell::Get()->session_controller())
Shell::Get()->session_controller()->RemoveObserver(this);
ui::DeviceDataManager::GetInstance()->RemoveObserver(this);
// Reset the emoji panel callback
ui::SetShowEmojiKeyboardCallback(base::DoNothing());
}
void VirtualKeyboardController::ForceShowKeyboardWithKeyset(
input_method::ImeKeyset keyset) {
Shell::Get()->ime_controller()->OverrideKeyboardKeyset(
keyset, base::BindOnce(&VirtualKeyboardController::ForceShowKeyboard,
base::Unretained(this)));
}
void VirtualKeyboardController::ForceShowKeyboard() {
// If the virtual keyboard is enabled, show the keyboard directly.
auto* keyboard_controller = keyboard::KeyboardUIController::Get();
if (keyboard_controller->IsEnabled()) {
keyboard_controller->ShowKeyboard(false /* locked */);
return;
}
// Otherwise, temporarily enable the virtual keyboard until it is dismissed.
DCHECK(!keyboard::GetKeyboardEnabledFromShelf());
keyboard::SetKeyboardEnabledFromShelf(true);
keyboard_controller->ShowKeyboard(false);
}
void VirtualKeyboardController::OnTabletModeEventsBlockingChanged() {
UpdateKeyboardEnabled();
}
void VirtualKeyboardController::OnInputDeviceConfigurationChanged(
uint8_t input_device_types) {
if (input_device_types & (ui::InputDeviceEventObserver::kKeyboard |
ui::InputDeviceEventObserver::kTouchscreen)) {
UpdateDevices();
}
}
void VirtualKeyboardController::ToggleIgnoreExternalKeyboard() {
ignore_external_keyboard_ = !ignore_external_keyboard_;
UpdateKeyboardEnabled();
}
void VirtualKeyboardController::UpdateDevices() {
ui::DeviceDataManager* device_data_manager =
ui::DeviceDataManager::GetInstance();
touchscreens_ = device_data_manager->GetTouchscreenDevices();
// Checks for keyboards.
external_keyboards_.clear();
internal_keyboard_name_.reset();
for (const ui::InputDevice& device :
device_data_manager->GetKeyboardDevices()) {
ui::InputDeviceType type = device.type;
if (type == ui::InputDeviceType::INPUT_DEVICE_INTERNAL)
internal_keyboard_name_ = device.name;
if ((type == ui::InputDeviceType::INPUT_DEVICE_USB ||
(type == ui::InputDeviceType::INPUT_DEVICE_BLUETOOTH &&
bluetooth_devices_observer_->IsConnectedBluetoothDevice(device))) &&
!device.suspected_keyboard_imposter) {
external_keyboards_.push_back(device);
}
}
// Update keyboard state.
UpdateKeyboardEnabled();
}
void VirtualKeyboardController::UpdateKeyboardEnabled() {
ignore_internal_keyboard_ = Shell::Get()
->tablet_mode_controller()
->AreInternalInputDeviceEventsBlocked();
bool is_internal_keyboard_active =
internal_keyboard_name_ && !ignore_internal_keyboard_;
keyboard::SetTouchKeyboardEnabled(
!is_internal_keyboard_active && !touchscreens_.empty() &&
(external_keyboards_.empty() || ignore_external_keyboard_));
Shell::Get()->system_tray_notifier()->NotifyVirtualKeyboardSuppressionChanged(
!is_internal_keyboard_active && !touchscreens_.empty() &&
!external_keyboards_.empty());
}
void VirtualKeyboardController::OnKeyboardHidden(bool is_temporary_hide) {
// The keyboard may temporarily hide (e.g. to change container behaviors).
// The keyset should not be reset in this case.
if (is_temporary_hide)
return;
// Post a task to reset the virtual keyboard to its original state.
base::SingleThreadTaskRunner::GetCurrentDefault()->PostTask(
FROM_HERE, base::BindOnce(ResetVirtualKeyboard));
}
void VirtualKeyboardController::OnActiveUserSessionChanged(
const AccountId& account_id) {
// Force on-screen keyboard to reset.
Shell::Get()->keyboard_controller()->RebuildKeyboardIfEnabled();
}
void VirtualKeyboardController::OnBluetoothAdapterOrDeviceChanged(
device::BluetoothDevice* device) {
// We only care about keyboard type bluetooth device change.
if (!device ||
device->GetDeviceType() == device::BluetoothDeviceType::KEYBOARD ||
device->GetDeviceType() ==
device::BluetoothDeviceType::KEYBOARD_MOUSE_COMBO) {
UpdateDevices();
}
}
const std::optional<std::string>&
VirtualKeyboardController::GetInternalKeyboardName() const {
return internal_keyboard_name_;
}
const std::vector<ui::InputDevice>&
VirtualKeyboardController::GetExternalKeyboards() const {
return external_keyboards_;
}
const std::vector<ui::TouchscreenDevice>&
VirtualKeyboardController::GetTouchscreens() const {
return touchscreens_;
}
bool VirtualKeyboardController::IsInternalKeyboardIgnored() const {
return ignore_internal_keyboard_;
}
bool VirtualKeyboardController::IsExternalKeyboardIgnored() const {
return ignore_external_keyboard_;
}
} // namespace ash
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