Index: ui/chromeos/touch_accessibility_enabler.h |
diff --git a/ui/chromeos/touch_accessibility_enabler.h b/ui/chromeos/touch_accessibility_enabler.h |
deleted file mode 100644 |
index 1b25990a105b1562ec5aa46863057ae089567f87..0000000000000000000000000000000000000000 |
--- a/ui/chromeos/touch_accessibility_enabler.h |
+++ /dev/null |
@@ -1,119 +0,0 @@ |
-// Copyright 2016 The Chromium Authors. All rights reserved. |
-// Use of this source code is governed by a BSD-style license that can be |
-// found in the LICENSE file. |
- |
-#ifndef UI_CHROMEOS_TOUCH_ACCESSIBILITY_ENABLER_H_ |
-#define UI_CHROMEOS_TOUCH_ACCESSIBILITY_ENABLER_H_ |
- |
-#include "base/macros.h" |
-#include "base/time/tick_clock.h" |
-#include "base/timer/timer.h" |
-#include "base/values.h" |
-#include "ui/chromeos/ui_chromeos_export.h" |
-#include "ui/events/event.h" |
-#include "ui/events/event_handler.h" |
-#include "ui/events/gesture_detection/gesture_detector.h" |
- |
-namespace aura { |
-class Window; |
-} |
- |
-namespace ui { |
- |
-class Event; |
-class EventHandler; |
-class TouchEvent; |
- |
-// A delegate to handle commands in response to detected accessibility gesture |
-// events. |
-class TouchAccessibilityEnablerDelegate { |
- public: |
- virtual ~TouchAccessibilityEnablerDelegate() {} |
- |
- // While the user holds down two fingers on a touch screen, which is the |
- // gesture to enable spoken feedback (if held down long enough), play a sound |
- // every "tick" (approximately every half-second) to warn the user something |
- // is about to happen. |
- virtual void PlaySpokenFeedbackToggleCountdown(int tick_count) {} |
- |
- // Toggles spoken feedback. |
- virtual void ToggleSpokenFeedback() {} |
-}; |
- |
-// TouchAccessibilityEnabler triggers turning spoken feedback on or off |
-// by holding down two fingers on the touch screen for several seconds. |
-class UI_CHROMEOS_EXPORT TouchAccessibilityEnabler : public ui::EventHandler { |
- public: |
- TouchAccessibilityEnabler(aura::Window* root_window, |
- ui::TouchAccessibilityEnablerDelegate* delegate); |
- ~TouchAccessibilityEnabler() override; |
- |
- bool IsInNoFingersDownForTesting() { return state_ == NO_FINGERS_DOWN; } |
- bool IsInOneFingerDownForTesting() { return state_ == ONE_FINGER_DOWN; } |
- bool IsInTwoFingersDownForTesting() { return state_ == TWO_FINGERS_DOWN; } |
- bool IsInWaitForNoFingersForTesting() { |
- return state_ == WAIT_FOR_NO_FINGERS; |
- } |
- void TriggerOnTimerForTesting() { OnTimer(); } |
- |
- void HandleTouchEvent(const ui::TouchEvent& event); |
- |
- private: |
- // Overridden from ui::EventHandler |
- void OnTouchEvent(ui::TouchEvent* event) override; |
- |
- void StartTimer(); |
- void CancelTimer(); |
- void OnTimer(); |
- |
- // Returns the current time of the tick clock. |
- base::TimeTicks Now(); |
- |
- enum State { |
- // No fingers are down. |
- NO_FINGERS_DOWN, |
- |
- // One finger is down and it's possible this could be a two-finger-hold. |
- ONE_FINGER_DOWN, |
- |
- // Two fingers are down and stationary and we will trigger enabling |
- // spoken feedback after a delay. |
- TWO_FINGERS_DOWN, |
- |
- // This is the "reject" state when we get anything other than two fingers |
- // held down and stationary. Stay in this state until all fingers are |
- // removed. |
- WAIT_FOR_NO_FINGERS |
- }; |
- |
- aura::Window* root_window_; |
- |
- // Called when we detect a long-press of two fingers. Not owned. |
- ui::TouchAccessibilityEnablerDelegate* delegate_; |
- |
- // The current state. |
- State state_; |
- |
- // The time when we entered the two finger state. |
- base::TimeTicks two_finger_start_time_; |
- |
- // Map of touch ids to their initial locations. |
- std::map<int, gfx::PointF> touch_locations_; |
- |
- // A timer that triggers repeatedly while two fingers are held down. |
- base::RepeatingTimer timer_; |
- |
- // A default gesture detector config, so we can share the same |
- // timeout and pixel slop constants. |
- ui::GestureDetector::Config gesture_detector_config_; |
- |
- // When touch_accessibility_enabler gets time relative to real time during |
- // testing, this clock is set to the simulated clock and used. |
- base::TickClock* tick_clock_; |
- |
- DISALLOW_COPY_AND_ASSIGN(TouchAccessibilityEnabler); |
-}; |
- |
-} // namespace ui |
- |
-#endif // UI_CHROMEOS_TOUCH_ACCESSIBILITY_ENABLER_H_ |