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add ability to cancel getKeyboardResponse listeners

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This commit is contained in:
Josh de Leeuw 2014-06-26 11:41:41 -04:00
parent 0663629a12
commit 511279df42
1 changed files with 30 additions and 0 deletions
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30
jspsych.js
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@ -30,6 +30,8 @@
var exp_start_time;
// turk info
var turk_info;
// keyboard listeners
var keyboard_listeners = [];
//
// public methods
@ -332,6 +334,8 @@
start_time = performance.now();
}
var listener_id;
var listener_function = function(e) {
var key_time;
@ -362,6 +366,9 @@
if (valid_response) {
$(document).unbind('keydown', listener_function);
// remove the keyboard listener from the list of listeners
keyboard_listeners.splice($.inArray(listener_id, keyboard_listeners), 1)
callback_function({
key: e.which,
rt: key_time - start_time
@ -370,7 +377,30 @@
};
$(document).keydown(listener_function);
// create listener id object
listener_id = {type: 'keydown', fn: listener_function};
// add this keyboard listener to the list of listeners
keyboard_listeners.push(listener_id)
return listener_id;
};
core.cancelKeyboardResponse = function(listener) {
// remove the listener from the doc
$(document).unbind(listener.type, listener.fn);
// remove the listener from the list of listeners
keyboard_listeners.splice($.inArray(listener, keyboard_listeners), 1)
}
core.cancelAllKeyboardResponses = function() {
for(var i = 0; i< keyboard_listeners.length; i++){
$(document).unbind(keyboard_listeners[i].type, keyboard_listeners[i].fn);
}
}
//
// private functions //