native-canvas
Version:
A canvas library allows for a HTML canvas to run natively on NodeJs, without a WebBrowser
92 lines • 3.19 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
var sdl_1 = require("../sdl");
var keycode = require('keycode');
var keymod = sdl_1.SDL_Keymod;
var KMOD_KEYS = Object.keys(keymod);
var currentKeyEvent = {};
function getCurrentKeyEvent(sdlEvent, window) {
currentKeyEvent.preventDefault = function () { return window.preventDefault(currentKeyEvent); };
currentKeyEvent.stopImmediatePropagation = function () { return window.stopImmediatePropagation(currentKeyEvent); };
currentKeyEvent.stopPropagation = function () { return window.stopPropagation(currentKeyEvent); };
var key = sdlEvent.key;
currentKeyEvent.key = getKey(key);
var normalizedKey = currentKeyEvent.key
.toLowerCase()
.trim()
.replace('left ', '')
.replace('right ', '')
.trim();
if (normalizedKey.length > 0) {
currentKeyEvent.which = currentKeyEvent.keyCode = currentKeyEvent.charCode = keycode(normalizedKey);
}
else {
currentKeyEvent.which = currentKeyEvent.keyCode = currentKeyEvent.charCode = keycode(currentKeyEvent.key);
}
currentKeyEvent.code = getKeyCode(key);
currentKeyEvent.repeat = !!key.repeat;
currentKeyEvent.ctrlKey = false;
currentKeyEvent.shiftKey = false;
currentKeyEvent.altKey = false;
currentKeyEvent.metaKey = false;
KMOD_KEYS.forEach(function (modName) {
var keyModValue = keymod[modName];
var mod = key.keysym.mod;
/*tslint:disable*/
var val = !!(keyModValue & mod);
/*tslint:enable*/
switch (modName) {
case 'KMOD_LCTRL':
case 'KMOD_RCTRL':
if (!currentKeyEvent.ctrlKey) {
currentKeyEvent.ctrlKey = val;
}
break;
case 'KMOD_LSHIFT':
case 'KMOD_RSHIFT':
if (!currentKeyEvent.shiftKey) {
currentKeyEvent.shiftKey = val;
}
break;
case 'KMOD_RALT':
case 'KMOD_LALT':
if (!currentKeyEvent.altKey) {
currentKeyEvent.altKey = val;
}
break;
case 'KMOD_LGUI':
case 'KMOD_RGUI':
if (!currentKeyEvent.metaKey) {
currentKeyEvent.metaKey = val;
}
break;
}
});
return currentKeyEvent;
}
exports.getCurrentKeyEvent = getCurrentKeyEvent;
function getKeyCode(key) {
var codeName = sdl_1.SDL_GetScancodeName(key.keysym.scancode);
if (codeName.length === 1 && codeName.match(/[A-Z]/i)) {
return "Key" + codeName;
}
else if (codeName.length === 1 && codeName.match(/[0-9]/i)) {
return "Digit" + codeName;
}
else {
return codeName;
}
}
function getKey(key) {
var keyName = sdl_1.SDL_GetKeyName(key.keysym.sym);
if (keyName.length === 1 && keyName.match(/[A-Z]/i)) {
return keyName.toLowerCase();
}
switch (keyName) {
case 'Space':
return ' ';
default:
return keyName;
}
}
//# sourceMappingURL=key-event.js.map