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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_shift_disable_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 ShiftDisableState =
AcceleratorShiftDisableCapslockStateMachine::ShiftDisableState;
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 AcceleratorShiftDisableCapslockStateMachineTest
: public AshTestBase,
public testing::WithParamInterface<
std::tuple<std::vector<EventTypeVariant>, ShiftDisableState>> {
public:
void SetUp() override {
AshTestBase::SetUp();
std::tie(events_, expected_state_) = GetParam();
input_controller_ = std::make_unique<MockInputController>();
shift_disable_state_machine_ =
std::make_unique<AcceleratorShiftDisableCapslockStateMachine>(
input_controller_.get());
}
void TearDown() override {
shift_disable_state_machine_.reset();
AshTestBase::TearDown();
}
protected:
std::unique_ptr<AcceleratorShiftDisableCapslockStateMachine>
shift_disable_state_machine_;
std::unique_ptr<MockInputController> input_controller_;
std::vector<EventTypeVariant> events_;
ShiftDisableState expected_state_;
};
INSTANTIATE_TEST_SUITE_P(
All,
AcceleratorShiftDisableCapslockStateMachineTest,
testing::ValuesIn(std::vector<std::tuple<std::vector<EventTypeVariant>,
ShiftDisableState>>{
// Shift -> Release Shift allows the disable to trigger.
{{kKeysPressed, KeyPress(ui::VKEY_SHIFT), kNoKeysPressed,
KeyRelease(ui::VKEY_SHIFT)},
ShiftDisableState::kTrigger},
// A -> A release goes back to starting state.
{{kKeysPressed, KeyPress(ui::VKEY_A), kNoKeysPressed,
KeyRelease(ui::VKEY_A)},
ShiftDisableState::kStart},
// Pressing A moves to suppress state.
{{kKeysPressed, KeyPress(ui::VKEY_A)}, ShiftDisableState::kSuppress},
// A -> Shift -> Release shift keeps us in suppressed state.
{{kKeysPressed, KeyPress(ui::VKEY_A), KeyPress(ui::VKEY_SHIFT),
KeyRelease(ui::VKEY_SHIFT)},
ShiftDisableState::kSuppress},
// If any key is released, stay in starting state.
{{KeyRelease(ui::VKEY_A)}, ShiftDisableState::kStart},
// If shift is presesd twice, stay in primed state.
{{kKeysPressed, KeyPress(ui::VKEY_SHIFT), KeyPress(ui::VKEY_RSHIFT)},
ShiftDisableState::kPrimed},
// If any key is pressed once in primed state, go to suppressed state.
{{kKeysPressed, KeyPress(ui::VKEY_LSHIFT), KeyPress(ui::VKEY_A)},
ShiftDisableState::kSuppress},
// If any key is released once in primed state, go to suppressed state.
{{kKeysPressed, KeyPress(ui::VKEY_LSHIFT), KeyRelease(ui::VKEY_0)},
ShiftDisableState::kSuppress},
// If mouse is pressed in primed state, go to suppressed state.
{{kKeysPressed, KeyPress(ui::VKEY_SHIFT), MousePress()},
ShiftDisableState::kSuppress},
// If mouse is pressed and released, ensure we end up back in starting
// state.
{{MousePress(), MouseRelease()}, ShiftDisableState::kStart},
}));
TEST_P(AcceleratorShiftDisableCapslockStateMachineTest, StateTest) {
for (auto& event : events_) {
if (std::holds_alternative<bool>(event)) {
ON_CALL(*input_controller_, AreAnyKeysPressed())
.WillByDefault(testing::Return(std::get<bool>(event)));
continue;
}
shift_disable_state_machine_->OnEvent(&GetEventFromVariant(event));
}
EXPECT_EQ(expected_state_, shift_disable_state_machine_->current_state());
}
} // namespace ash::accelerators
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