HashList/HashList.js at main · matthaak/HashList · GitHub

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
// See https://github.com/matthaak/HashList/ for documentation

var HashList = Class.create();
HashList.prototype = {

	// listGE - optional delimited string or GlideElement
	// delim - optional delimiter string of any characters, defaults to comma
	initialize: function(listGE, delim) {
		if (typeof listGE !== 'undefined')
			this.listGE = listGE;
		else
			this.listGE = '';
		this.delim = delim || ',';

		this._arr = [];
		this._obj = {};

		var delimEsc = this.delim.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, '\\$&');
		var delimRE = new RegExp('\\s*' + delimEsc + '\\s*');
		var i, elmt;
		var listArr = this.listGE.toString().split(delimRE);
		for (i=0; i<listArr.length; i++) {
			elmt = listArr[i];
			if (elmt && !this._obj[elmt]) {
				this._arr.push(elmt);
				this._obj[elmt] = true;
			}
		}
	},

	add : function(value) {
		if (this.contains(value)) return false;
		this._arr.push(value);
		this._obj[value] = true;
		this._setGE();
		return true;
	},

	addAll: function(hashList) {
	    var me = this;
	    var amModified = false;
	    hashList._arr.forEach(function(val) {
		if (!me.contains(val)) {
		    me.add(val);
		    amModified = true;
		}
	    });
	    return amModified;
	},

	clear : function() {
		this._arr = [];
		this._obj = {};
		this._setGE();
	},

	clone : function() {
		var cloneHL = new HashList(this.listGE.toString(), this.delim);
		return cloneHL;
	},

	contains : function(value) {
		return this._obj[value] || false;
	},

	isEmpty : function() {
		return this._arr.length===0;
	},

	remove : function(value) {
		if (!this.contains(value)) return false;
		var idx = this._arr.indexOf(value);
		this._arr.splice(idx, 1);
		delete this._obj[value];
		this._setGE();
		return true;
	},

	size : function() {
		return this._arr.length;
	},

	toString : function() {
		return this._arr.join(this.delim);
	},

	toArray : function() {
		return this._arr.slice();
	},

	_setGE : function() {
		var newValue = this._arr.join(this.delim);
		if (this.listGE.setValue) { // If inited with GlideElement
			this.listGE.setValue(newValue);
		} else {
			this.listGE = newValue;
		}
	},

    type: 'HashList'
};