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// Copyright 2016 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/accessibility/chromevox/touch_accessibility_enabler.h"
#include <memory>
#include "ash/accessibility/chromevox/mock_touch_exploration_controller_delegate.h"
#include "ash/accessibility/chromevox/touch_exploration_controller.h"
#include "base/test/simple_test_tick_clock.h"
#include "base/time/time.h"
#include "ui/aura/test/aura_test_base.h"
#include "ui/aura/window.h"
#include "ui/events/event.h"
#include "ui/events/event_utils.h"
#include "ui/events/gestures/gesture_provider_aura.h"
#include "ui/events/test/event_generator.h"
#include "ui/events/test/events_test_utils.h"
#include "ui/gfx/geometry/point.h"
namespace ash {
namespace {
class MockTouchAccessibilityEnablerDelegate
: public TouchAccessibilityEnablerDelegate {
public:
MockTouchAccessibilityEnablerDelegate() {}
MockTouchAccessibilityEnablerDelegate(
const MockTouchAccessibilityEnablerDelegate&) = delete;
MockTouchAccessibilityEnablerDelegate& operator=(
const MockTouchAccessibilityEnablerDelegate&) = delete;
~MockTouchAccessibilityEnablerDelegate() override {}
void ToggleSpokenFeedback() override { toggle_spoken_feedback_ = true; }
bool toggle_spoken_feedback() const { return toggle_spoken_feedback_; }
private:
bool toggle_spoken_feedback_ = false;
};
class TouchAccessibilityEnablerTest : public aura::test::AuraTestBase {
public:
TouchAccessibilityEnablerTest() {}
TouchAccessibilityEnablerTest(const TouchAccessibilityEnablerTest&) = delete;
TouchAccessibilityEnablerTest& operator=(
const TouchAccessibilityEnablerTest&) = delete;
~TouchAccessibilityEnablerTest() override {}
void SetUp() override {
aura::test::AuraTestBase::SetUp();
generator_ = std::make_unique<ui::test::EventGenerator>(root_window());
// Tests fail if time is ever 0.
simulated_clock_.Advance(base::Milliseconds(10));
ui::SetEventTickClockForTesting(&simulated_clock_);
enabler_ =
std::make_unique<TouchAccessibilityEnabler>(root_window(), &delegate_);
}
void TearDown() override {
enabler_.reset(nullptr);
ui::SetEventTickClockForTesting(nullptr);
aura::test::AuraTestBase::TearDown();
}
protected:
base::TimeTicks Now() {
// This is the same as what EventTimeForNow() does, but here we do it
// with our simulated clock.
return simulated_clock_.NowTicks();
}
std::unique_ptr<ui::test::EventGenerator> generator_;
base::SimpleTestTickClock simulated_clock_;
MockTouchAccessibilityEnablerDelegate delegate_;
std::unique_ptr<TouchAccessibilityEnabler> enabler_;
ui::GestureDetector::Config gesture_detector_config_;
};
} // namespace
TEST_F(TouchAccessibilityEnablerTest, InteractsWithTouchExplorationController) {
// This test ensures that if TouchExplorationController starts and stops,
// TouchAccessibilityEnabler continues to work correctly. Because
// TouchExplorationController rewrites most touch events, it can screw up
// TouchAccessibilityEnabler if they don't explicitly coordinate.
MockTouchExplorationControllerDelegate delegate;
std::unique_ptr<TouchExplorationController> controller(
new TouchExplorationController(root_window(), &delegate,
enabler_->GetWeakPtr()));
EXPECT_TRUE(enabler_->IsInNoFingersDownForTesting());
generator_->set_current_screen_location(gfx::Point(11, 12));
generator_->PressTouchId(1);
simulated_clock_.Advance(base::Milliseconds(500));
generator_->set_current_screen_location(gfx::Point(22, 34));
generator_->PressTouchId(2);
EXPECT_TRUE(enabler_->IsInTwoFingersDownForTesting());
controller.reset();
generator_->ReleaseTouchId(1);
generator_->ReleaseTouchId(2);
EXPECT_TRUE(enabler_->IsInNoFingersDownForTesting());
}
TEST_F(TouchAccessibilityEnablerTest, EntersOneFingerDownMode) {
EXPECT_TRUE(enabler_->IsInNoFingersDownForTesting());
EXPECT_FALSE(enabler_->IsInOneFingerDownForTesting());
generator_->set_current_screen_location(gfx::Point(11, 12));
generator_->PressTouch();
EXPECT_FALSE(enabler_->IsInNoFingersDownForTesting());
EXPECT_TRUE(enabler_->IsInOneFingerDownForTesting());
}
TEST_F(TouchAccessibilityEnablerTest, EntersTwoFingersDownMode) {
EXPECT_TRUE(enabler_->IsInNoFingersDownForTesting());
generator_->set_current_screen_location(gfx::Point(11, 12));
generator_->PressTouchId(1);
generator_->set_current_screen_location(gfx::Point(22, 34));
generator_->PressTouchId(2);
EXPECT_TRUE(enabler_->IsInTwoFingersDownForTesting());
}
TEST_F(TouchAccessibilityEnablerTest, TogglesSpokenFeedback) {
EXPECT_TRUE(enabler_->IsInNoFingersDownForTesting());
generator_->set_current_screen_location(gfx::Point(11, 12));
generator_->PressTouchId(1);
generator_->set_current_screen_location(gfx::Point(22, 34));
generator_->PressTouchId(2);
EXPECT_TRUE(enabler_->IsInTwoFingersDownForTesting());
EXPECT_FALSE(delegate_.toggle_spoken_feedback());
simulated_clock_.Advance(base::Milliseconds(5000));
enabler_->TriggerOnTimerForTesting();
EXPECT_TRUE(delegate_.toggle_spoken_feedback());
}
TEST_F(TouchAccessibilityEnablerTest, ThreeFingersCancelsDetection) {
EXPECT_TRUE(enabler_->IsInNoFingersDownForTesting());
generator_->set_current_screen_location(gfx::Point(11, 12));
generator_->PressTouchId(1);
generator_->set_current_screen_location(gfx::Point(22, 34));
generator_->PressTouchId(2);
EXPECT_TRUE(enabler_->IsInTwoFingersDownForTesting());
generator_->set_current_screen_location(gfx::Point(33, 56));
generator_->PressTouchId(3);
EXPECT_TRUE(enabler_->IsInWaitForNoFingersForTesting());
}
TEST_F(TouchAccessibilityEnablerTest, MovingFingerPastSlopCancelsDetection) {
EXPECT_TRUE(enabler_->IsInNoFingersDownForTesting());
generator_->set_current_screen_location(gfx::Point(11, 12));
generator_->PressTouch();
int slop = gesture_detector_config_.double_tap_slop;
int half_slop = slop / 2;
generator_->MoveTouch(gfx::Point(11 + half_slop, 12));
EXPECT_TRUE(enabler_->IsInOneFingerDownForTesting());
generator_->MoveTouch(gfx::Point(11 + slop + 1, 12));
EXPECT_TRUE(enabler_->IsInWaitForNoFingersForTesting());
}
} // namespace ash
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