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// Copyright 2023 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/accelerators/accelerator_capslock_state_machine.h"
#include <variant>
#include "ash/test/ash_test_base.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/events/devices/stylus_state.h"
#include "ui/events/event.h"
#include "ui/events/event_constants.h"
#include "ui/events/keycodes/keyboard_codes_posix.h"
#include "ui/events/types/event_type.h"
#include "ui/ozone/public/stub_input_controller.h"
namespace ash::accelerators {
namespace {
class MockInputController : public ui::StubInputController {
public:
MOCK_METHOD(bool, AreAnyKeysPressed, (), (override));
};
const bool kKeysPressed = true;
const bool kNoKeysPressed = false;
using EventTypeVariant = std::variant<ui::MouseEvent, ui::KeyEvent, bool>;
using CapslockState = AcceleratorCapslockStateMachine::CapslockState;
ui::MouseEvent MousePress() {
return ui::MouseEvent(ui::EventType::kMousePressed,
/*location=*/gfx::PointF{},
/*root_location=*/gfx::PointF{},
/*time_stamp=*/{}, ui::EF_LEFT_MOUSE_BUTTON,
ui::EF_LEFT_MOUSE_BUTTON);
}
ui::MouseEvent MouseRelease() {
return ui::MouseEvent(ui::EventType::kMouseReleased,
/*location=*/gfx::PointF{},
/*root_location=*/gfx::PointF{},
/*time_stamp=*/{}, ui::EF_NONE,
ui::EF_LEFT_MOUSE_BUTTON);
}
ui::KeyEvent KeyPress(ui::KeyboardCode key_code) {
return ui::KeyEvent(ui::EventType::kKeyPressed, key_code, ui::EF_NONE);
}
ui::KeyEvent KeyRelease(ui::KeyboardCode key_code) {
return ui::KeyEvent(ui::EventType::kKeyReleased, key_code, ui::EF_NONE);
}
ui::Event& GetEventFromVariant(EventTypeVariant& event) {
if (std::holds_alternative<ui::MouseEvent>(event)) {
return std::get<ui::MouseEvent>(event);
} else {
return std::get<ui::KeyEvent>(event);
}
}
} // namespace
class AcceleratorCapslockStateMachineTest
: public AshTestBase,
public testing::WithParamInterface<
std::tuple<std::vector<EventTypeVariant>, CapslockState>> {
public:
void SetUp() override {
AshTestBase::SetUp();
std::tie(events_, expected_state_) = GetParam();
input_controller_ = std::make_unique<MockInputController>();
caps_lock_state_machine_ =
std::make_unique<AcceleratorCapslockStateMachine>(
input_controller_.get());
}
void TearDown() override {
caps_lock_state_machine_.reset();
AshTestBase::TearDown();
}
protected:
std::unique_ptr<AcceleratorCapslockStateMachine> caps_lock_state_machine_;
std::unique_ptr<MockInputController> input_controller_;
std::vector<EventTypeVariant> events_;
CapslockState expected_state_;
};
INSTANTIATE_TEST_SUITE_P(
All,
AcceleratorCapslockStateMachineTest,
testing::ValuesIn(std::vector<
std::tuple<std::vector<EventTypeVariant>, CapslockState>>{
// Alt -> Search primes capslock
{{kKeysPressed, KeyPress(ui::VKEY_MENU), KeyPress(ui::VKEY_LWIN)},
CapslockState::kPrimed},
// Alt -> Search -> Alt release allows capslock to be triggered and
// will prime again when alt is pressed.
{{kKeysPressed, KeyPress(ui::VKEY_MENU), KeyPress(ui::VKEY_LWIN),
KeyRelease(ui::VKEY_MENU)},
CapslockState::kTriggerAlt},
// Alt -> Search -> Search release allows capslock to be triggered and
// will prime again when Search is pressed.
{{kKeysPressed, KeyPress(ui::VKEY_MENU), KeyPress(ui::VKEY_LWIN),
KeyRelease(ui::VKEY_LWIN)},
CapslockState::kTriggerSearch},
// Search -> Alt -> Search release allows capslock to be triggered and
// will prime again when Search is pressed.
{{kKeysPressed, KeyPress(ui::VKEY_LWIN), KeyPress(ui::VKEY_MENU),
KeyRelease(ui::VKEY_LWIN)},
CapslockState::kTriggerSearch},
// Search -> Alt -> A lands in suppressed state.
{{kKeysPressed, KeyPress(ui::VKEY_LWIN), KeyPress(ui::VKEY_MENU),
KeyPress(ui::VKEY_A)},
CapslockState::kSuppress},
// Search -> A lands in suppressed state.
{{kKeysPressed, KeyPress(ui::VKEY_LWIN), KeyPress(ui::VKEY_A)},
CapslockState::kSuppress},
// Search -> Release A lands in suppressed state.
{{kKeysPressed, KeyPress(ui::VKEY_LWIN), KeyRelease(ui::VKEY_A)},
CapslockState::kSuppress},
// Search -> Search release puts back in starting state.
{{kKeysPressed, KeyPress(ui::VKEY_LWIN), KeyRelease(ui::VKEY_LWIN)},
CapslockState::kStart},
// Search -> A -> A Release -> Search release puts back in starting
// state.
{{kKeysPressed, KeyPress(ui::VKEY_LWIN), KeyPress(ui::VKEY_A),
KeyRelease(ui::VKEY_A), kNoKeysPressed, KeyRelease(ui::VKEY_LWIN)},
CapslockState::kStart},
// Alt -> Search -> Release Alt -> Press Search ends up still waiting
// for Alt to be pressed.
{{kKeysPressed, KeyPress(ui::VKEY_MENU), KeyPress(ui::VKEY_LWIN),
KeyRelease(ui::VKEY_MENU), KeyPress(ui::VKEY_LWIN)},
CapslockState::kWaitingAlt},
// Search -> Alt -> Release Search -> Alt results in us still waiting
// for Search to be pressed.
{{kKeysPressed, KeyPress(ui::VKEY_LWIN), KeyPress(ui::VKEY_MENU),
KeyRelease(ui::VKEY_LWIN), KeyPress(ui::VKEY_MENU)},
CapslockState::kWaitingSearch},
// Alt -> Release Alt ends up back at the start.
{{kKeysPressed, KeyPress(ui::VKEY_MENU), KeyRelease(ui::VKEY_MENU)},
CapslockState::kStart},
// Alt -> Release another key ends up with us at kSuppress.
{{kKeysPressed, KeyPress(ui::VKEY_MENU), KeyRelease(ui::VKEY_A)},
CapslockState::kSuppress},
// Alt -> A ends up with us at kSuppress.
{{kKeysPressed, KeyPress(ui::VKEY_MENU), KeyPress(ui::VKEY_A)},
CapslockState::kSuppress},
// Alt -> Search -> Alt keeps us still primed.
{{kKeysPressed, KeyPress(ui::VKEY_MENU), KeyPress(ui::VKEY_LWIN),
KeyPress(ui::VKEY_MENU)},
CapslockState::kPrimed},
// Pressing any key other than alt or search results in suppress.
{{kKeysPressed, KeyPress(ui::VKEY_A)}, CapslockState::kSuppress},
// Alt -> Mouse button results in us being suppressed.
{{kKeysPressed, KeyPress(ui::VKEY_MENU), MousePress()},
CapslockState::kSuppress},
// Mouse press -> Mouse release ends up back at kStart.
{{MousePress(), MouseRelease()}, CapslockState::kStart},
}));
TEST_P(AcceleratorCapslockStateMachineTest, StateTest) {
for (auto& event : events_) {
if (std::holds_alternative<bool>(event)) {
ON_CALL(*input_controller_, AreAnyKeysPressed())
.WillByDefault(testing::Return(std::get<bool>(event)));
continue;
}
caps_lock_state_machine_->OnEvent(&GetEventFromVariant(event));
}
EXPECT_EQ(expected_state_, caps_lock_state_machine_->current_state());
}
} // namespace ash::accelerators
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