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// Copyright 2015 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 "ui/events/ozone/evdev/touch_filter/false_touch_finder.h"
#include "base/command_line.h"
#include "base/memory/ptr_util.h"
#include "base/metrics/histogram_macros.h"
#include "ui/events/event_switches.h"
#include "ui/events/event_utils.h"
#include "ui/events/ozone/evdev/touch_filter/edge_touch_filter.h"
#include "ui/events/ozone/evdev/touch_filter/touch_filter.h"
namespace ui {
FalseTouchFinder::~FalseTouchFinder() {}
std::unique_ptr<FalseTouchFinder> FalseTouchFinder::Create(
gfx::Size touchscreen_size) {
bool edge_filtering = base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kEdgeTouchFiltering);
if (edge_filtering) {
return base::WrapUnique(
new FalseTouchFinder(edge_filtering, touchscreen_size));
}
return nullptr;
}
void FalseTouchFinder::HandleTouches(
const std::vector<InProgressTouchEvdev>& touches,
base::TimeTicks time) {
for (const InProgressTouchEvdev& touch : touches) {
slots_should_delay_.set(touch.slot, false);
}
for (const auto& filter : delay_filters_)
filter->Filter(touches, time, &slots_should_delay_);
}
bool FalseTouchFinder::SlotShouldDelay(size_t slot) const {
return slots_should_delay_.test(slot);
}
FalseTouchFinder::FalseTouchFinder(bool edge_filtering,
gfx::Size touchscreen_size)
: last_noise_time_(ui::EventTimeForNow()) {
if (edge_filtering) {
delay_filters_.push_back(
std::make_unique<EdgeTouchFilter>(touchscreen_size));
}
}
} // namespace ui
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