1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/*! Icinga Web 2 | (c) 2014 Icinga Development Team | GPLv2+ */
/**
* EventListener contains event handlers and can bind / and unbind them from
* event emitting objects
*/
(function(Icinga, $) {
"use strict";
var EventListener = function (icinga) {
this.icinga = icinga;
this.handlers = [];
};
/**
* Add an handler to this EventLister
*
* @param evt {String} The name of the triggering event
* @param cond {String} The filter condition
* @param fn {Function} The event handler to execute
* @param scope {Object} The optional 'this' of the called function
*/
EventListener.prototype.on = function(evt, cond, fn, scope) {
if (typeof cond === 'function') {
scope = fn;
fn = cond;
cond = 'body';
}
this.icinga.logger.debug('on: ' + evt + '(' + cond + ')');
this.handlers.push({ evt: evt, cond: cond, fn: fn, scope: scope });
};
/**
* Bind all listeners to the given event emitter
*
* All event handlers will be executed when the associated event is
* triggered on the given Emitter.
*
* @param emitter {String} An event emitter that supports the function
* 'on' to register listeners
*/
EventListener.prototype.bind = function (emitter) {
var _this = this;
if (typeof emitter.jquery === 'undefined') {
emitter = $(emitter);
}
$.each(this.handlers, function(i, handler) {
_this.icinga.logger.debug('bind: ' + handler.evt + '(' + handler.cond + ')');
emitter.on(
handler.evt, handler.cond,
{
self: handler.scope || emitter,
icinga: _this.icinga
}, handler.fn
);
});
};
/**
* Unbind all listeners from the given event emitter
*
* @param emitter {String} An event emitter that supports the function
* 'off' to un-register listeners.
*/
EventListener.prototype.unbind = function (emitter) {
var _this = this;
$.each(this.handlers, function(i, handler) {
_this.icinga.logger.debug('unbind: ' + handler.evt + '(' + handler.cond + ')');
emitter.off(handler.evt, handler.cond, handler.fn);
});
};
Icinga.EventListener = EventListener;
}) (Icinga, jQuery);
|
