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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <string>
#include "base/test/bind.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/base/pointer/touch_ui_controller.h"
namespace ui {
namespace {
class TestObserver {
public:
explicit TestObserver(TouchUiController* controller)
: subscription_(controller->RegisterCallback(
base::BindLambdaForTesting([this]() { ++touch_ui_changes_; }))) {}
~TestObserver() = default;
int touch_ui_changes() const { return touch_ui_changes_; }
private:
int touch_ui_changes_ = 0;
base::CallbackListSubscription subscription_;
};
} // namespace
// Verifies that non-touch is the default.
TEST(TouchUiControllerTest, DefaultIsNonTouch) {
TouchUiController controller;
EXPECT_FALSE(controller.touch_ui());
}
// Verifies that kDisabled maps to non-touch.
TEST(TouchUiControllerTest, DisabledIsNonTouch) {
TouchUiController controller(TouchUiController::TouchUiState::kDisabled);
EXPECT_FALSE(controller.touch_ui());
}
// Verifies that kAuto maps to non-touch (the default).
TEST(TouchUiControllerTest, AutoIsNonTouch) {
TouchUiController controller(TouchUiController::TouchUiState::kAuto);
EXPECT_FALSE(controller.touch_ui());
}
// Verifies that kEnabled maps to touch.
TEST(TouchUiControllerTest, EnabledIsNonTouch) {
TouchUiController controller(TouchUiController::TouchUiState::kEnabled);
EXPECT_TRUE(controller.touch_ui());
}
// Verifies that when the mode is set to non-touch and the tablet mode toggles,
// the touch UI state does not change.
TEST(TouchUiControllerTest, TabletToggledOnTouchUiDisabled) {
TouchUiController controller(TouchUiController::TouchUiState::kDisabled);
TestObserver observer(&controller);
controller.OnTabletModeToggled(true);
EXPECT_FALSE(controller.touch_ui());
EXPECT_EQ(0, observer.touch_ui_changes());
controller.OnTabletModeToggled(false);
EXPECT_FALSE(controller.touch_ui());
EXPECT_EQ(0, observer.touch_ui_changes());
}
// Verifies that when the mode is set to auto and the tablet mode toggles, the
// touch UI state changes and the observer gets called back.
TEST(TouchUiControllerTest, TabletToggledOnTouchUiAuto) {
TouchUiController controller(TouchUiController::TouchUiState::kAuto);
TestObserver observer(&controller);
controller.OnTabletModeToggled(true);
EXPECT_TRUE(controller.touch_ui());
EXPECT_EQ(1, observer.touch_ui_changes());
controller.OnTabletModeToggled(false);
EXPECT_FALSE(controller.touch_ui());
EXPECT_EQ(2, observer.touch_ui_changes());
}
} // namespace ui
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