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[JavaScript] Dispatching keyboard event
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// gecko and webkit | |
// details here https://developer.mozilla.org/en-US/docs/DOM/event.initKeyEvent | |
var keyboardEvent = document.createEvent("KeyboardEvent"); | |
var initMethod = typeof keyboardEvent.initKeyboardEvent !== 'undefined' ? "initKeyboardEvent" : "initKeyEvent"; | |
keyboardEvent[initMethod]( | |
"keydown", // event type : keydown, keyup, keypress | |
true, // bubbles | |
true, // cancelable | |
window, // viewArg: should be window | |
false, // ctrlKeyArg | |
false, // altKeyArg | |
false, // shiftKeyArg | |
false, // metaKeyArg | |
40, // keyCodeArg : unsigned long the virtual key code, else 0 | |
0 // charCodeArgs : unsigned long the Unicode character associated with the depressed key, else 0 | |
); | |
document.dispatchEvent(keyboardEvent); | |
/* a better way */ | |
function fireKey(el,key) | |
{ | |
if(document.createEventObject) | |
{ | |
var eventObj = document.createEventObject(); | |
eventObj.keyCode = key; | |
el.fireEvent("onkeydown", eventObj); | |
eventObj.keyCode = key; | |
}else if(document.createEvent) | |
{ | |
var eventObj = document.createEvent("Events"); | |
eventObj.initEvent("keydown", true, true); | |
eventObj.which = key; | |
eventObj.keyCode = key; | |
el.dispatchEvent(eventObj); | |
} | |
} | |
//useful keyCodes | |
// left: 37 | |
// up : 38 | |
// right : 39 | |
// down : 40 | |
// ENTER : 13 |
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