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// Copyright 2013 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 "content/browser/renderer_host/input/touchscreen_tap_suppression_controller.h"
#include <utility>
#include "content/browser/renderer_host/input/gesture_event_queue.h"
using blink::WebInputEvent;
namespace content {
TouchscreenTapSuppressionController::TouchscreenTapSuppressionController(
GestureEventQueue* geq,
const TapSuppressionController::Config& config)
: gesture_event_queue_(geq), controller_(this, config) {
}
TouchscreenTapSuppressionController::~TouchscreenTapSuppressionController() {}
void TouchscreenTapSuppressionController::GestureFlingCancel() {
controller_.GestureFlingCancel();
}
void TouchscreenTapSuppressionController::GestureFlingCancelAck(
bool processed) {
controller_.GestureFlingCancelAck(processed);
}
bool TouchscreenTapSuppressionController::FilterTapEvent(
const GestureEventWithLatencyInfo& event) {
switch (event.event.type) {
case WebInputEvent::GestureTapDown:
if (!controller_.ShouldDeferTapDown())
return false;
stashed_tap_down_.reset(new GestureEventWithLatencyInfo(event));
return true;
case WebInputEvent::GestureShowPress:
if (!stashed_tap_down_)
return false;
stashed_show_press_.reset(new GestureEventWithLatencyInfo(event));
return true;
case WebInputEvent::GestureTapUnconfirmed:
return !!stashed_tap_down_;
case WebInputEvent::GestureTapCancel:
case WebInputEvent::GestureTap:
case WebInputEvent::GestureDoubleTap:
return controller_.ShouldSuppressTapEnd();
default:
break;
}
return false;
}
void TouchscreenTapSuppressionController::DropStashedTapDown() {
stashed_tap_down_.reset();
stashed_show_press_.reset();
}
void TouchscreenTapSuppressionController::ForwardStashedTapDown() {
DCHECK(stashed_tap_down_);
ScopedGestureEvent tap_down = std::move(stashed_tap_down_);
ScopedGestureEvent show_press = std::move(stashed_show_press_);
gesture_event_queue_->ForwardGestureEvent(*tap_down);
if (show_press)
gesture_event_queue_->ForwardGestureEvent(*show_press);
}
} // namespace content
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