1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "ui/base/ozone/evdev/key_event_converter_ozone.h" 6 7 #include <linux/input.h> 8 9 #include "ui/base/events/event.h" 10 #include "ui/base/keycodes/keyboard_codes.h" 11 12 namespace { 13 14 ui::KeyboardCode KeyboardCodeFromButton(int code) { 15 switch (code) { 16 case KEY_VOLUMEDOWN: 17 return ui::VKEY_VOLUME_DOWN; 18 19 case KEY_VOLUMEUP: 20 return ui::VKEY_VOLUME_UP; 21 22 case KEY_POWER: 23 return ui::VKEY_POWER; 24 } 25 26 LOG(ERROR) << "Unknown key code: " << code; 27 return static_cast<ui::KeyboardCode>(0); 28 } 29 30 } // namespace 31 32 namespace ui { 33 34 // TODO(rjkroege): Stop leaking file descriptor. 35 KeyEventConverterOzone::KeyEventConverterOzone() {} 36 KeyEventConverterOzone::~KeyEventConverterOzone() {} 37 38 void KeyEventConverterOzone::OnFileCanReadWithoutBlocking(int fd) { 39 input_event inputs[4]; 40 ssize_t read_size = read(fd, inputs, sizeof(inputs)); 41 if (read_size <= 0) 42 return; 43 44 CHECK_EQ(read_size % sizeof(*inputs), 0u); 45 for (unsigned i = 0; i < read_size / sizeof(*inputs); ++i) { 46 const input_event& input = inputs[i]; 47 if (input.type == EV_KEY) { 48 scoped_ptr<KeyEvent> key( 49 new KeyEvent(input.value == 1 ? ET_KEY_PRESSED : ET_KEY_RELEASED, 50 KeyboardCodeFromButton(input.code), 51 0, 52 true)); 53 DispatchEvent(key.PassAs<ui::Event>()); 54 } else if (input.type == EV_SYN) { 55 // TODO(sadrul): Handle this case appropriately. 56 } 57 } 58 } 59 60 void KeyEventConverterOzone::OnFileCanWriteWithoutBlocking(int fd) { 61 NOTREACHED(); 62 } 63 64 } // namespace ui 65
