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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 "content/browser/renderer_host/input/gesture_event_queue.h"
#include "content/browser/renderer_host/input/tap_suppression_controller.h"
#include "ui/events/gestures/gesture_configuration.h"
#if defined(OS_ANDROID)
#include "ui/gfx/android/view_configuration.h"
#endif
using blink::WebInputEvent;
namespace content {
TouchscreenTapSuppressionController::TouchscreenTapSuppressionController(
GestureEventQueue* geq)
: gesture_event_queue_(geq),
controller_(new TapSuppressionController(this)) {
}
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;
}
#if defined(OS_ANDROID)
// TODO(jdduke): Enable ui::GestureConfiguration on Android and initialize
// with parameters from ViewConfiguration.
int TouchscreenTapSuppressionController::MaxCancelToDownTimeInMs() {
return gfx::ViewConfiguration::GetTapTimeoutInMs();
}
int TouchscreenTapSuppressionController::MaxTapGapTimeInMs() {
return gfx::ViewConfiguration::GetLongPressTimeoutInMs();
}
#else
int TouchscreenTapSuppressionController::MaxCancelToDownTimeInMs() {
return ui::GestureConfiguration::fling_max_cancel_to_down_time_in_ms();
}
int TouchscreenTapSuppressionController::MaxTapGapTimeInMs() {
return static_cast<int>(
ui::GestureConfiguration::semi_long_press_time_in_seconds() * 1000);
}
#endif
void TouchscreenTapSuppressionController::DropStashedTapDown() {
stashed_tap_down_.reset();
stashed_show_press_.reset();
}
void TouchscreenTapSuppressionController::ForwardStashedTapDown() {
DCHECK(stashed_tap_down_);
ScopedGestureEvent tap_down = stashed_tap_down_.Pass();
ScopedGestureEvent show_press = stashed_show_press_.Pass();
gesture_event_queue_->ForwardGestureEvent(*tap_down);
if (show_press)
gesture_event_queue_->ForwardGestureEvent(*show_press);
}
} // namespace content
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