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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/shell.h"
#include "ash/wm/maximize_mode/maximize_mode_controller.h"
#include "base/command_line.h"
#include "base/strings/string_util.h"
#include "ui/events/devices/device_data_manager.h"
#include "ui/events/devices/input_device.h"
#include "ui/events/devices/keyboard_device.h"
#include "ui/events/devices/touchscreen_device.h"
#include "ui/gfx/x/x11_types.h"
#include "ui/keyboard/keyboard_switches.h"
#include "ui/keyboard/keyboard_util.h"
namespace ash {
namespace {
// Checks whether smart deployment is enabled.
bool IsSmartVirtualKeyboardEnabled() {
return base::CommandLine::ForCurrentProcess()->HasSwitch(
keyboard::switches::kEnableAutoVirtualKeyboard);
}
} // namespace
VirtualKeyboardController::VirtualKeyboardController()
: has_external_keyboard_(false),
has_internal_keyboard_(false),
has_touchscreen_(false),
ignore_external_keyboard_(false) {
Shell::GetInstance()->AddShellObserver(this);
ui::DeviceDataManager::GetInstance()->AddObserver(this);
UpdateDevices();
}
VirtualKeyboardController::~VirtualKeyboardController() {
Shell::GetInstance()->RemoveShellObserver(this);
ui::DeviceDataManager::GetInstance()->RemoveObserver(this);
}
void VirtualKeyboardController::OnMaximizeModeStarted() {
if (!IsSmartVirtualKeyboardEnabled())
SetKeyboardEnabled(true);
}
void VirtualKeyboardController::OnMaximizeModeEnded() {
if (!IsSmartVirtualKeyboardEnabled())
SetKeyboardEnabled(false);
}
void VirtualKeyboardController::OnTouchscreenDeviceConfigurationChanged() {
UpdateDevices();
}
void VirtualKeyboardController::OnKeyboardDeviceConfigurationChanged() {
UpdateDevices();
}
void VirtualKeyboardController::ToggleIgnoreExternalKeyboard() {
ignore_external_keyboard_ = !ignore_external_keyboard_;
UpdateKeyboardEnabled();
}
void VirtualKeyboardController::UpdateDevices() {
ui::DeviceDataManager* device_data_manager =
ui::DeviceDataManager::GetInstance();
// Checks for touchscreens.
has_touchscreen_ = device_data_manager->touchscreen_devices().size() > 0;
// Checks for keyboards.
has_external_keyboard_ = false;
has_internal_keyboard_ = false;
for (const ui::KeyboardDevice& device :
device_data_manager->keyboard_devices()) {
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(Shell::GetInstance()
->maximize_mode_controller()
->IsMaximizeModeWindowManagerEnabled());
return;
}
SetKeyboardEnabled(!has_internal_keyboard_ && has_touchscreen_ &&
(!has_external_keyboard_ || ignore_external_keyboard_));
ash::Shell::GetInstance()
->system_tray_notifier()
->NotifyVirtualKeyboardSuppressionChanged(!has_internal_keyboard_ &&
has_touchscreen_ &&
has_external_keyboard_);
}
void VirtualKeyboardController::SetKeyboardEnabled(bool enabled) {
keyboard::SetTouchKeyboardEnabled(enabled);
if (enabled) {
Shell::GetInstance()->CreateKeyboard();
} else {
if (!keyboard::IsKeyboardEnabled())
Shell::GetInstance()->DeactivateKeyboard();
}
}
} // namespace ash
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