chromium/ui/events/ozone/evdev/tablet_event_converter_evdev.cc

// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/351564777): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#include "ui/events/ozone/evdev/tablet_event_converter_evdev.h"

#include <errno.h>
#include <linux/input.h>
#include <stddef.h>

#include "base/logging.h"
#include "base/trace_event/trace_event.h"
#include "ui/events/event.h"
#include "ui/events/ozone/evdev/device_event_dispatcher_evdev.h"

#if BUILDFLAG(IS_CHROMEOS_ASH)
#include "ash/constants/ash_features.h"
#endif

namespace ui {

namespace {

// Convert tilt from [min, min + num_values) to [-90deg, +90deg)
float ScaleTilt(int value, int min_value, int num_values) { … }

uint8_t ToolMaskFromButtonTool(int button_tool) { … }

EventPointerType GetToolType(uint8_t tool_mask) { … }

}  // namespace

TabletEventConverterEvdev::TabletEventConverterEvdev(
    base::ScopedFD fd,
    base::FilePath path,
    int id,
    CursorDelegateEvdev* cursor,
    const EventDeviceInfo& info,
    DeviceEventDispatcherEvdev* dispatcher)
    : … { … }

TabletEventConverterEvdev::~TabletEventConverterEvdev() = default;

void TabletEventConverterEvdev::OnFileCanReadWithoutBlocking(int fd) { … }

bool TabletEventConverterEvdev::HasGraphicsTablet() const { … }

std::ostream& TabletEventConverterEvdev::DescribeForLog(
    std::ostream& os) const { … }

void TabletEventConverterEvdev::ProcessEvents(const input_event* inputs,
                                              int count) { … }

void TabletEventConverterEvdev::ConvertKeyEvent(const input_event& input) { … }

void TabletEventConverterEvdev::ConvertAbsEvent(const input_event& input) { … }

void TabletEventConverterEvdev::UpdateCursor() { … }

void TabletEventConverterEvdev::DispatchMouseButton(const input_event& input) { … }

void TabletEventConverterEvdev::FlushEvents(const input_event& input) { … }

}  // namespace ui