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- // Copyright 2019 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.
- syntax = "proto2";
- option optimize_for = LITE_RUNTIME;
- package remoting.protocol;
- // List of key functions to identify functional (non-character-generating) keys
- // in the keyboard layout. This list is not meant to be exhaustive, but is meant
- // to include functions typically assigned to the standard keyboard keys on
- // common keyboard layouts.
- // Next ID: 64
- enum LayoutKeyFunction {
- // The key action is a function whose type is not recognized.
- UNKNOWN = 0;
- // Modifier keys
- CONTROL = 1;
- ALT = 2;
- SHIFT = 3;
- // Windows key on Windows, super on Linux.
- META = 4;
- // Level 3 shift. Commonly labeled AltGr.
- ALT_GR = 5;
- // Level 5 shift. Used on some Linux layouts. (Level 4 is AltGr + Shift.)
- MOD5 = 6;
- // On Linux, this defaults to Shift + AltGr (which is distinct from AltGr +
- // Shift, which accesses level 4), but it can also be assigned to
- // a distinct key.
- COMPOSE = 7;
- // Mac specific keys.
- // The option key on macOS generally acts like AltGr, but can also be used for
- // shortcuts like option+command+B.
- OPTION = 61;
- COMMAND = 62;
- // Chrome OS specific keys.
- // The search key on Chrome OS (aka the 'Launcher' or 'Everything' key).
- SEARCH = 63;
- // Locks
- NUM_LOCK = 8;
- CAPS_LOCK = 9;
- SCROLL_LOCK = 10;
- // Editing and navigation keys
- BACKSPACE = 11;
- ENTER = 12;
- TAB = 13;
- INSERT = 14;
- DELETE_ = 15;
- HOME = 16;
- END = 17;
- PAGE_UP = 18;
- PAGE_DOWN = 19;
- CLEAR = 20;
- ARROW_UP = 21;
- ARROW_DOWN = 22;
- ARROW_LEFT = 23;
- ARROW_RIGHT = 24;
- // Function keys
- F1 = 25;
- F2 = 26;
- F3 = 27;
- F4 = 28;
- F5 = 29;
- F6 = 30;
- F7 = 31;
- F8 = 32;
- F9 = 33;
- F10 = 34;
- F11 = 35;
- F12 = 36;
- F13 = 37;
- F14 = 38;
- F15 = 39;
- F16 = 40;
- F17 = 41;
- F18 = 42;
- F19 = 43;
- F20 = 44;
- F21 = 45;
- F22 = 46;
- F23 = 47;
- F24 = 48;
- // Other common functional keys
- ESCAPE = 49;
- CONTEXT_MENU = 50;
- PAUSE = 51;
- PRINT_SCREEN = 52;
- // Language-specific keys
- // Japanese
- HANKAKU_ZENKAKU_KANJI = 53; // Backquote
- HENKAN = 54; // Convert
- MUHENKAN = 55; // NonConvert
- KATAKANA_HIRAGANA_ROMAJI = 56; // KanaMode
- KANA = 57; // Lang1 (Mac keyboard)
- EISU = 58; // Unshifted CapsLock (Windows), Lang2 (Mac keyboard)
- // Korean
- HAN_YEONG = 59; // Lang1
- HANJA = 60; // Lang2
- }
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