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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/views/controls/scrollbar/scroll_bar_button.h"
#include <memory>
#include "base/test/task_environment.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/display/test/test_screen.h"
#include "ui/events/base_event_utils.h"
#include "ui/events/event.h"
#include "ui/views/repeat_controller.h"
#include "ui/views/test/view_metadata_test_utils.h"
namespace views {
namespace {
using testing::_;
using testing::AtLeast;
using testing::AtMost;
class MockButtonCallback {
public:
MockButtonCallback() = default;
MockButtonCallback(const MockButtonCallback&) = delete;
MockButtonCallback& operator=(const MockButtonCallback&) = delete;
~MockButtonCallback() = default;
MOCK_METHOD(void, ButtonPressed, ());
};
class ScrollBarButtonTest : public testing::Test {
public:
ScrollBarButtonTest()
: button_(std::make_unique<ScrollBarButton>(
base::BindRepeating(&MockButtonCallback::ButtonPressed,
base::Unretained(&callback_)),
ScrollBarButton::Type::kLeft,
task_environment_.GetMockTickClock())) {
display::Screen::SetScreenInstance(&test_screen_);
}
ScrollBarButtonTest(const ScrollBarButtonTest&) = delete;
ScrollBarButtonTest& operator=(const ScrollBarButtonTest&) = delete;
~ScrollBarButtonTest() override {
display::Screen::SetScreenInstance(nullptr);
}
protected:
testing::StrictMock<MockButtonCallback>& callback() { return callback_; }
Button* button() { return button_.get(); }
void AdvanceTime(base::TimeDelta time_delta) {
task_environment_.FastForwardBy(time_delta);
}
private:
base::test::TaskEnvironment task_environment_{
base::test::TaskEnvironment::TimeSource::MOCK_TIME};
display::test::TestScreen test_screen_;
testing::StrictMock<MockButtonCallback> callback_;
const std::unique_ptr<Button> button_;
};
} // namespace
TEST_F(ScrollBarButtonTest, Metadata) {
test::TestViewMetadata(button());
}
TEST_F(ScrollBarButtonTest, FocusBehavior) {
EXPECT_EQ(View::FocusBehavior::NEVER, button()->GetFocusBehavior());
}
TEST_F(ScrollBarButtonTest, CallbackFiresOnMouseDown) {
EXPECT_CALL(callback(), ButtonPressed());
// By default the button should notify its callback on mouse release.
button()->OnMousePressed(
ui::MouseEvent(ui::EventType::kMousePressed, gfx::Point(), gfx::Point(),
ui::EventTimeForNow(), ui::EF_LEFT_MOUSE_BUTTON,
ui::EF_LEFT_MOUSE_BUTTON));
}
TEST_F(ScrollBarButtonTest, CallbackFiresMultipleTimesMouseHeldDown) {
EXPECT_CALL(callback(), ButtonPressed()).Times(AtLeast(2));
// By default the button should notify its callback on mouse release.
button()->OnMousePressed(
ui::MouseEvent(ui::EventType::kMousePressed, gfx::Point(), gfx::Point(),
ui::EventTimeForNow(), ui::EF_LEFT_MOUSE_BUTTON,
ui::EF_LEFT_MOUSE_BUTTON));
AdvanceTime(RepeatController::GetInitialWaitForTesting() * 10);
}
TEST_F(ScrollBarButtonTest, CallbackStopsFiringAfterMouseReleased) {
EXPECT_CALL(callback(), ButtonPressed()).Times(AtLeast(2));
// By default the button should notify its callback on mouse release.
button()->OnMousePressed(
ui::MouseEvent(ui::EventType::kMousePressed, gfx::Point(), gfx::Point(),
ui::EventTimeForNow(), ui::EF_LEFT_MOUSE_BUTTON,
ui::EF_LEFT_MOUSE_BUTTON));
AdvanceTime(RepeatController::GetInitialWaitForTesting() * 10);
testing::Mock::VerifyAndClearExpectations(&callback());
button()->OnMouseReleased(
ui::MouseEvent(ui::EventType::kMouseReleased, gfx::Point(), gfx::Point(),
ui::EventTimeForNow(), ui::EF_LEFT_MOUSE_BUTTON,
ui::EF_LEFT_MOUSE_BUTTON));
AdvanceTime(RepeatController::GetInitialWaitForTesting() * 10);
EXPECT_CALL(callback(), ButtonPressed()).Times(AtMost(0));
}
TEST_F(ScrollBarButtonTest, CallbackStopsFiringAfterMouseCaptureReleased) {
EXPECT_CALL(callback(), ButtonPressed()).Times(AtLeast(2));
// By default the button should notify its callback on mouse release.
button()->OnMousePressed(
ui::MouseEvent(ui::EventType::kMousePressed, gfx::Point(), gfx::Point(),
ui::EventTimeForNow(), ui::EF_LEFT_MOUSE_BUTTON,
ui::EF_LEFT_MOUSE_BUTTON));
AdvanceTime(RepeatController::GetInitialWaitForTesting() * 10);
testing::Mock::VerifyAndClearExpectations(&callback());
button()->OnMouseCaptureLost();
AdvanceTime(RepeatController::GetInitialWaitForTesting() * 10);
EXPECT_CALL(callback(), ButtonPressed()).Times(AtMost(0));
}
} // namespace views
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