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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/webui/ash/settings/pages/device/device_keyboard_handler.h"
#include "ash/constants/ash_features.h"
#include "ash/constants/ash_switches.h"
#include "ash/shell.h"
#include "base/command_line.h"
#include "base/functional/bind.h"
#include "base/values.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "chrome/browser/ui/ash/system_web_apps/system_web_app_ui_utils.h"
#include "content/public/browser/web_ui.h"
#include "ui/display/screen.h"
#include "ui/events/ash/keyboard_capability.h"
#include "ui/events/ash/keyboard_layout_util.h"
#include "ui/events/devices/keyboard_device.h"
namespace {
struct KeyboardsStateResult {
bool has_launcher_key = false; // ChromeOS launcher key.
bool has_external_apple_keyboard = false;
bool has_external_chromeos_keyboard = false;
bool has_external_generic_keyboard = false;
};
KeyboardsStateResult GetKeyboardsState() {
KeyboardsStateResult result;
for (const ui::KeyboardDevice& keyboard :
ui::DeviceDataManager::GetInstance()->GetKeyboardDevices()) {
switch (ash::Shell::Get()->keyboard_capability()->GetDeviceType(keyboard)) {
case ui::KeyboardCapability::DeviceType::kDeviceInternalKeyboard:
case ui::KeyboardCapability::DeviceType::kDeviceInternalRevenKeyboard:
result.has_launcher_key = true;
break;
case ui::KeyboardCapability::DeviceType::kDeviceExternalAppleKeyboard:
result.has_external_apple_keyboard = true;
break;
case ui::KeyboardCapability::DeviceType::kDeviceExternalChromeOsKeyboard:
result.has_external_chromeos_keyboard = true;
break;
case ui::KeyboardCapability::DeviceType::kDeviceExternalGenericKeyboard:
case ui::KeyboardCapability::DeviceType::
kDeviceExternalNullTopRowChromeOsKeyboard:
case ui::KeyboardCapability::DeviceType::kDeviceExternalUnknown:
result.has_external_generic_keyboard = true;
break;
case ui::KeyboardCapability::DeviceType::kDeviceHotrodRemote:
case ui::KeyboardCapability::DeviceType::kDeviceVirtualCoreKeyboard:
case ui::KeyboardCapability::DeviceType::kDeviceUnknown:
break;
}
}
return result;
}
} // namespace
namespace ash::settings {
const char KeyboardHandler::kShowKeysChangedName[] = "show-keys-changed";
void KeyboardHandler::TestAPI::Initialize() {
handler_->HandleInitialize(base::Value::List());
}
KeyboardHandler::KeyboardHandler() = default;
KeyboardHandler::~KeyboardHandler() = default;
void KeyboardHandler::RegisterMessages() {
web_ui()->RegisterMessageCallback(
"initializeKeyboardSettings",
base::BindRepeating(&KeyboardHandler::HandleInitialize,
base::Unretained(this)));
web_ui()->RegisterMessageCallback(
"showShortcutCustomizationApp",
base::BindRepeating(&KeyboardHandler::HandleShowShortcutCustomizationApp,
base::Unretained(this)));
web_ui()->RegisterMessageCallback(
"initializeKeyboardWatcher",
base::BindRepeating(&KeyboardHandler::HandleKeyboardChange,
base::Unretained(this)));
}
void KeyboardHandler::OnJavascriptAllowed() {
observation_.Observe(ui::DeviceDataManager::GetInstance());
}
void KeyboardHandler::OnJavascriptDisallowed() {
observation_.Reset();
}
void KeyboardHandler::OnInputDeviceConfigurationChanged(
uint8_t input_device_types) {
if (input_device_types & ui::InputDeviceEventObserver::kKeyboard) {
AllowJavascript();
UpdateShowKeys();
UpdateKeyboards();
}
}
void KeyboardHandler::HandleInitialize(const base::Value::List& args) {
AllowJavascript();
UpdateShowKeys();
UpdateKeyboards();
}
void KeyboardHandler::HandleShowShortcutCustomizationApp(
const base::Value::List& args) const {
ash::LaunchSystemWebAppAsync(ProfileManager::GetActiveUserProfile(),
ash::SystemWebAppType::SHORTCUT_CUSTOMIZATION);
}
void KeyboardHandler::HandleKeyboardChange(const base::Value::List& args) {
AllowJavascript();
UpdateKeyboards();
}
void KeyboardHandler::UpdateKeyboards() {
bool physical_keyboard = false;
// In tablet mode, physical keyboards are disabled / ignored.
if (!display::Screen::GetScreen()->InTabletMode()) {
physical_keyboard = true;
}
if (!physical_keyboard) {
for (const ui::InputDevice& keyboard :
ui::DeviceDataManager::GetInstance()->GetKeyboardDevices()) {
if (keyboard.type != ui::InputDeviceType::INPUT_DEVICE_INTERNAL) {
physical_keyboard = true;
break;
}
}
}
FireWebUIListener("has-hardware-keyboard", base::Value(physical_keyboard));
}
void KeyboardHandler::UpdateShowKeys() {
// kHasChromeOSKeyboard will be unset on Chromebooks that have standalone Caps
// Lock keys.
const KeyboardsStateResult keyboards_state = GetKeyboardsState();
const bool has_caps_lock = keyboards_state.has_external_apple_keyboard ||
keyboards_state.has_external_generic_keyboard ||
!base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kHasChromeOSKeyboard);
base::Value::Dict keyboard_params;
keyboard_params.Set("showCapsLock", has_caps_lock);
keyboard_params.Set("showExternalMetaKey",
keyboards_state.has_external_generic_keyboard);
keyboard_params.Set("showAppleCommandKey",
keyboards_state.has_external_apple_keyboard);
// An external (USB/BT) ChromeOS keyboard is treated similarly to an internal
// ChromeOS keyboard. i.e. they are functionally the same.
keyboard_params.Set("hasLauncherKey",
keyboards_state.has_launcher_key ||
keyboards_state.has_external_chromeos_keyboard);
const bool show_assistant_key_settings = ui::DeviceKeyboardHasAssistantKey();
keyboard_params.Set("hasAssistantKey", show_assistant_key_settings);
FireWebUIListener(kShowKeysChangedName, keyboard_params);
}
} // namespace ash::settings
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