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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 "base/test/metrics/histogram_tester.h"
#include "base/test/task_environment.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/base/pointer/mock_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_;
};
class TouchUiControllerTest : public testing::Test {
public:
using TouchUiState = ::ui::TouchUiController::TouchUiState;
void RunUntilIdle() { task_environment_.RunUntilIdle(); }
private:
base::test::TaskEnvironment task_environment_{
base::test::TaskEnvironment::MainThreadType::UI};
};
} // namespace
// Verifies that non-touch is the default.
TEST_F(TouchUiControllerTest, DefaultIsNonTouch) {
MockTouchUiController controller;
EXPECT_FALSE(controller.touch_ui());
}
// Verifies that kDisabled maps to non-touch.
TEST_F(TouchUiControllerTest, DisabledIsNonTouch) {
MockTouchUiController controller(TouchUiState::kDisabled);
EXPECT_FALSE(controller.touch_ui());
}
// Verifies that kAuto maps to non-touch (the default).
TEST_F(TouchUiControllerTest, AutoIsNonTouch) {
MockTouchUiController controller(TouchUiState::kAuto);
EXPECT_FALSE(controller.touch_ui());
}
// Verifies that kEnabled maps to touch.
TEST_F(TouchUiControllerTest, EnabledIsNonTouch) {
MockTouchUiController controller(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_F(TouchUiControllerTest, TabletToggledOnTouchUiDisabled) {
MockTouchUiController controller(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_F(TouchUiControllerTest, TabletToggledOnTouchUiAuto) {
MockTouchUiController controller(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());
}
#if BUILDFLAG(USE_BLINK)
TEST_F(TouchUiControllerTest, DetectPointerDevices) {
constexpr const char kOnStartupHistogram[] = "Input.Digitizer.OnStartup";
constexpr const char kOnConnectedHistogram[] = "Input.Digitizer.OnConnected";
constexpr const char kOnDisconnectedHistogram[] =
"Input.Digitizer.OnDisconnected";
constexpr const char kMaxTouchPointsDirectPenHistogram[] =
"Input.Digitizer.MaxTouchPoints.DirectPen";
constexpr const char kMaxTouchPointsIndirectPenHistogram[] =
"Input.Digitizer.MaxTouchPoints.IndirectPen";
constexpr const char kMaxTouchPointsTouchHistogram[] =
"Input.Digitizer.MaxTouchPoints.Touch";
constexpr const char kMaxTouchPointsTouchPadHistogram[] =
"Input.Digitizer.MaxTouchPoints.TouchPad";
constexpr const char kMaxTouchPointsSupportedBySystemAtStartupHistogram[] =
"Input.Digitizer.MaxTouchPointsSupportedBySystemAtStartup";
static const PointerDevice kDirectPenDevice = {
.key = PointerDevice::Key(0),
.digitizer = PointerDigitizerType::kDirectPen,
.max_active_contacts = 11};
static const PointerDevice kIndirectPenDevice = {
.key = PointerDevice::Key(1),
.digitizer = PointerDigitizerType::kIndirectPen,
.max_active_contacts = 20};
static const PointerDevice kTouchKeyDevice = {
.key = PointerDevice::Key(2),
.digitizer = PointerDigitizerType::kTouch,
.max_active_contacts = 1};
static const PointerDevice kTouchPadDevice = {
.key = PointerDevice::Key(3),
.digitizer = PointerDigitizerType::kTouchPad,
.max_active_contacts = 5};
base::HistogramTester histogram_tester;
// Expected to fire histograms for digitizer(s) found at startup,
// per-digitizer type max touch points, and aggregate max touch points.
MockTouchUiController controller(TouchUiState::kAuto);
controller.SetMockConnectedPointerDevices((std::vector<PointerDevice>{
kTouchPadDevice, kDirectPenDevice, kTouchKeyDevice}));
RunUntilIdle();
histogram_tester.ExpectTotalCount(kOnStartupHistogram, 3);
histogram_tester.ExpectBucketCount(kOnStartupHistogram,
PointerDigitizerType::kDirectPen, 1);
histogram_tester.ExpectBucketCount(kOnStartupHistogram,
PointerDigitizerType::kTouch, 1);
histogram_tester.ExpectBucketCount(kOnStartupHistogram,
PointerDigitizerType::kTouchPad, 1);
histogram_tester.ExpectTotalCount(kMaxTouchPointsDirectPenHistogram, 1);
histogram_tester.ExpectBucketCount(kMaxTouchPointsDirectPenHistogram, 11, 1);
histogram_tester.ExpectTotalCount(kMaxTouchPointsTouchHistogram, 1);
histogram_tester.ExpectBucketCount(kMaxTouchPointsTouchHistogram, 1, 1);
histogram_tester.ExpectTotalCount(kMaxTouchPointsTouchPadHistogram, 1);
histogram_tester.ExpectBucketCount(kMaxTouchPointsTouchPadHistogram, 5, 1);
histogram_tester.ExpectTotalCount(
kMaxTouchPointsSupportedBySystemAtStartupHistogram, 1);
histogram_tester.ExpectBucketCount(
kMaxTouchPointsSupportedBySystemAtStartupHistogram, 11, 1);
// Simulate receiving platform specific notifications that pointer devices
// have been connected or disconnected.
// Expected to fire histograms for digitizer(s) connected or disconnected,
// and per-digitizer type max touch points for newly connected devices.
controller.SetMockConnectedPointerDevices(
{kTouchPadDevice, kIndirectPenDevice});
controller.OnPointerDeviceDisconnected(kDirectPenDevice.key);
controller.OnPointerDeviceDisconnected(kTouchKeyDevice.key);
controller.OnPointerDeviceConnected(kIndirectPenDevice.key);
EXPECT_EQ(controller.GetLastKnownPointerDevicesForTesting(),
(std::vector<PointerDevice>{kTouchPadDevice, kIndirectPenDevice}));
histogram_tester.ExpectTotalCount(kOnConnectedHistogram, 1);
histogram_tester.ExpectBucketCount(kOnConnectedHistogram,
PointerDigitizerType::kIndirectPen, 1);
histogram_tester.ExpectTotalCount(kOnDisconnectedHistogram, 2);
histogram_tester.ExpectBucketCount(kOnDisconnectedHistogram,
PointerDigitizerType::kTouch, 1);
histogram_tester.ExpectBucketCount(kOnDisconnectedHistogram,
PointerDigitizerType::kDirectPen, 1);
histogram_tester.ExpectTotalCount(kMaxTouchPointsIndirectPenHistogram, 1);
histogram_tester.ExpectBucketCount(kMaxTouchPointsIndirectPenHistogram, 20,
1);
// The following aren't affected by the events above.
histogram_tester.ExpectTotalCount(kMaxTouchPointsDirectPenHistogram, 1);
histogram_tester.ExpectTotalCount(kMaxTouchPointsTouchHistogram, 1);
histogram_tester.ExpectTotalCount(kMaxTouchPointsTouchPadHistogram, 1);
// The following should never change after their initially logged at startup.
histogram_tester.ExpectTotalCount(kOnStartupHistogram, 3);
histogram_tester.ExpectTotalCount(
kMaxTouchPointsSupportedBySystemAtStartupHistogram, 1);
}
#endif // BUILDFLAG(USE_BLINK)
} // namespace ui
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