var shifting = module.exports.shifting = false;

var ctrling = module.exports.ctrling = false;

var alting = module.exports.alting = false;

module.exports.blankState = '0'; // when a mouse is not pressed

// maps javascript keycodes to qemu key names

var keymap = module.exports.keymap = {

8: 'backspace'

, 9: 'tab'

, 13: 'ret'

, 16: 'shift'

, 17: 'ctrl'

, 18: 'alt'

, 19: '?'// pause

, 20: 'caps_lock'

, 27: 'esc'

, 32: 'spc'

, 33: 'pgup'

, 34: 'pgdn'

, 35: 'end'

, 36: 'home'

, 37: 'left'

, 38: 'up'

, 39: 'right'

, 40: 'down'

, 44: 'print'

, 45: 'insert'

, 46: 'delete'

, 48: '0'

, 49: '1'

, 50: '2'

, 51: '3'

, 52: '4'

, 53: '5'

, 54: '6'

, 55: '7'

, 56: '8'

, 57: '9'

, 59: 'semicolon'

, 61: 'equal'

, 65: 'a'

, 66: 'b'

, 67: 'c'

, 68: 'd'

, 69: 'e'

, 70: 'f'

, 71: 'g'

, 72: 'h'

, 73: 'i'

, 74: 'j'

, 75: 'k'

, 76: 'l'

, 77: 'm'

, 78: 'n'

, 79: 'o'

, 80: 'p'

, 81: 'q'

, 82: 'r'

, 83: 's'

, 84: 't'

, 85: 'u'

, 86: 'v'

, 87: 'w'

, 88: 'x'

, 89: 'y'

, 90: 'z'

, 91: 'ctrl' // left command

, 93: 'ctrl' // right command

, 107: 'equal'

, 109: 'minus'

, 112: 'f1'

, 113: 'f2'

, 114: 'f3'

, 115: 'f4'

, 116: 'f5'

, 117: 'f6'

, 118: 'f7'

, 119: 'f8'

, 120: 'f9'

, 121: 'f10'

, 122: 'f11'

, 123: 'f12'

, 144: 'num_lock'

, 145: 'scroll_lock'

, 186: 'semicolon'

, 187: 'equal'

, 188: 'comma'

, 189: 'minus'

, 190: 'dot'

, 191: 'slash'

, 192: 'apostrophe'

, 219: 'bracket_left'

, 220: 'backslash'

, 221: 'bracket_right'

, 222: '\''

, 224: 'ctrl' // command in firefox

}

// returns the string to send to the qemu sendkey api from a javascript

// key-event keycode.

module.exports.qemukey = function(keycode) {

var mapping = keymap[keycode];

if (!mapping) return null;

if (mapping == 'shift') {

shifting = true; return null;

} else if (mapping == 'ctrl') {

ctrling = true; return null;

} else if (mapping == 'alt') {

alting = true; return null;

}

var prefix = '';

if (shifting) prefix += 'shift-';

if (ctrling) prefix += 'ctrl-';

if (alting) prefix += 'alt-';

return prefix + mapping;

}

module.exports.keyup = function(keycode) {

var mapping = keymap[keycode];

if (mapping == 'shift') {

shifting = false;

} else if (mapping == 'ctrl'){

ctrling = false;

} else if (mapping == 'alt') {

alting = false;

}

}

// takes a mouse click event and returns qemu state of mouse

module.exports.mouseclick = function(ev) {

switch (ev.which) {

case 1: return '1';

case 2: return '4';

case 3: return '2';

default: return '1';

}

}