blob: 7e2a5106349aa1d94c7bd54314c736c3d210a2b1 [file] [log] [blame]
// Copyright 2018 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.
#include <queue>
#include "base/containers/flat_set.h"
#include "base/time/tick_clock.h"
#include "base/time/time.h"
#include "chromecast/graphics/gestures/cast_gesture_handler.h"
namespace chromecast {
// A CastGestureHandler that fans system gesture events out to multiple
// consumers.
class CastSystemGestureDispatcher : public CastGestureHandler {
explicit CastSystemGestureDispatcher(const base::TickClock* tick_clock);
~CastSystemGestureDispatcher() override;
// Register a new handler for gesture events, including side swipe and tap.
void AddGestureHandler(CastGestureHandler* handler);
// Remove the registration of a gesture handler.
void RemoveGestureHandler(CastGestureHandler* handler);
// Implementation of CastGestureHandler methods which fan out to our gesture
// handlers.
Priority GetPriority() override;
bool CanHandleSwipe(CastSideSwipeOrigin swipe_origin) override;
void HandleSideSwipe(CastSideSwipeEvent event,
CastSideSwipeOrigin swipe_origin,
const gfx::Point& touch_location) override;
void HandleTapDownGesture(const gfx::Point& touch_location) override;
void HandleTapGesture(const gfx::Point& touch_location) override;
// Logs a completed gesture event.
struct GestureEvent {
base::TimeTicks event_time;
CastSideSwipeOrigin origin;
std::queue<GestureEvent> recent_events_;
bool send_gestures_to_root_;
const base::TickClock* const tick_clock_;
base::flat_set<CastGestureHandler*> gesture_handlers_;
} // namespace chromecast