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
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
(function ()
{
var _registered = {};
var _blocked = false;
var _pending = [];
function _disconnect(sig)
{
signals[sig] = null;
delete _registered[sig];
}
var _disconnectByProp = function(prop, obj)
{
var sig, i, sigs;
if (_blocked)
{
_pending.push({prop : prop, obj : obj});
return;
}
for (sig in _registered)
{
sigs = _registered[sig];
for (i = 0; i<sigs.length; i++)
{
if (sigs[i][prop] == obj)
{
if (_registered[sig].length === 1)
{
_disconnect(sig);
}
else
{
sigs.splice(i, 1);
}
return;
}
}
}
};
Object.defineProperties(signals,
{
"emit" :
{
value : function(sig, args)
{
var sigs = _registered[sig];
var currentSig, pending;
var ret = false;
var i, l;
_blocked = true;
for (i=0, l=sigs.length; i<l; i++)
{
currentSig = sigs[i];
ret = currentSig.callback.apply(currentSig.callback, args) || ret;
}
_blocked = false;
if (_pending.length > 0)
{
for (i=_pending.length-1; i>=0; --i)
{
pending = _pending[i];
_disconnectByProp(pending.prop, pending.obj);
}
_pending = [];
}
return ret;
}
},
"connect" :
{
value : (function ()
{
var id = 0;
return function(sig, func)
{
if (func === null || typeof func !== "function")
{
return -1;
}
++id;
if (_registered[sig] === undefined || _registered[sig] === null)
{
_registered[sig] = [];
signals[sig] = function () { return signals.emit(sig, arguments); };
}
_registered[sig].push({ callback : func, id : id });
return id;
};
})()
},
"connectWebView" :
{
value : function(name, callback)
{
this.connect("createTab", function(wv) {
wv.connect(name, function() { callback.apply(callback, arguments);});
});
}
},
"disconnect" :
{
value : function(obj) {
if (typeof obj == "function")
_disconnectByProp("callback", obj);
else
_disconnectByProp("id", obj);
}
},
"disconnectByName" :
{
value : function (name)
{
if (signals[name] !== null && signals[name] !== undefined)
{
_disconnect(name);
return true;
}
return false;
}
}
});
})();
|
