forked from jebaird/jquery-overflow-menu
-
Notifications
You must be signed in to change notification settings - Fork 0
/
jb.overflow.menu.js
202 lines (162 loc) · 6.41 KB
/
jb.overflow.menu.js
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
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
/*
* jQuery UI jb.overflowmenu
*
* Copyright 2011, Jesse Baird <jebaird@gmail.com> jebaird.com
* Dual licensed under the MIT or GPL Version 2 licenses.
*
* http://jebaird.com/blog/overflow-menu-jquery-ui-widget
*
* Depends:
* jquery.ui.core.js
* jquery.ui.widget.js
*
*
* suggested markup
* <nav>
* <ul>
* <li>
* </ul>
* </nav>
*
* $('nav').overflowmenu()
*
*
*
* events
* change - after items are moved to / from the secondary menu
* beforeChange - called before items are moved to / from the secondary menu
* open - when the secondary menu is shown
* close - when the secondary menu is closed
*/
(function( $, undefined ) {
$.widget( "jb.overflowmenu", {
options: {
items: '> *',
itemsParentTag: 'ul',
label: 'more',
//call the refresh method when this element changes size, with out a special event window is the only element that this gets called on
refreshOn: $( window ),
//attempt to guess the height of the menu, if not the target element needs to have a height
guessHeight: true
},
_create: function() {
var self = this;
this.element
.addClass('jb-overflowmenu');
this.primaryMenu = this.element
.children( this.options.itemsParentTag )
.addClass( 'jb-overflowmenu-menu-primary jb-overflowmenu-helper-postion' );
this._setHeight();
//TODO: allow the user to change the markup for this because they might not be using ul -> li
this.secondaryMenuContainer = $(
[
'<div class="jb-overflowmenu-container jb-overflowmenu-helper-postion">',
'<a href="javascript://" class="jb-overflowmenu-menu-secondary-handle"></a>',
'<' + this.options.itemsParentTag + ' class="jb-overflowmenu-menu-secondary jb-overflowmenu-helper-postion"></' + this.options.itemsParentTag + '>',
'</div>'
].join('')
)
.appendTo( this.element )
this.secondaryMenu = this.secondaryMenuContainer.find('ul');
this.secondaryMenuContainer.children( 'a' ).bind( 'click.overflowmenu', function( e ){
self.toggle();
});
//has to be set first
this._setOption( 'label', this.options.label )
this._setOption( 'refreshOn', this.options.refreshOn )
},
destroy: function() {
this.element
.removeClass('jb-overflowmenu')
this.primaryMenu
.removeClass('jb-overflowmenu-menu-primary jb-overflowmenu-helper-postion')
.find( this.options.items )
.filter( ':hidden' )
.css( 'display', '' )
this.options.refreshOn.unbind( 'resize.overflowmenu' );
this.secondaryMenuContainer.remove()
//TODO: possibly clean up the height & right on the ul
$.Widget.prototype.destroy.apply( this, arguments );
},
refresh: function() {
this._trigger( 'beforeChange', {}, this._uiHash() );
//move any items in the secondary menu back in to the primary
this.secondaryMenu
.children()
.appendTo( this.primaryMenu )
var vHeight = this.primaryMenuHeight,
//get the items, filter out the the visible ones
itemsToHide = this._getItems()
.filter(function(){
return this.offsetTop + $(this).height() > vHeight;
})
itemsToHide.appendTo( this.secondaryMenu );
if( itemsToHide.length == 0 ){
this.close();
}
//TODO: add the items to the UI Hash
this._trigger( 'change', {}, this._uiHash() );
return this;
},
//more menu opitons
open: function(){
if( this.secondaryMenu.find( this.options.items ).length == 0){
return;
}
this.secondaryMenu.show();
this._trigger( 'open', {}, this._uiHash() );
return this;
},
close: function(){
this.secondaryMenu.hide();
this._trigger( 'close', {}, this._uiHash() );
return this;
},
toggle: function(){
if( this.secondaryMenu.is( ':visible') ){
this.close();
}else{
this.open();
}
return this;
},
_getItems: function(){
return this.primaryMenu.find( this.options.items );
},
_setHeight: function(){
if( this.options.guessHeight ){
//get the first items height and set that as the height of the parent
this.primaryMenuHeight = this.primaryMenu.find( this.options.items ).filter(':first').outerHeight();
this.primaryMenu.css('height', this.primaryMenuHeight )
}else{
this.primaryMenuHeight = this.element.innerHeight();
}
},
_setOption: function( key, value ) {
var self = this;
if( key == 'refreshOn' && value ){
this.options.refreshOn.unbind( 'resize.overflowmenu' );
this.options.refreshOn = $( value )
.bind( 'resize.overflowmenu', function(){
self.refresh();
})
//call to set option
self.refresh();
}else if( key == 'label' && value ){
//figure out the width of the hadel and subtract that from the parend with and set that as the right
var width = this.secondaryMenuContainer.find('.jb-overflowmenu-menu-secondary-handle')
.html( value )
.outerWidth();
this.primaryMenu.css( 'right', width )
}
$.Widget.prototype._setOption.apply( this, arguments );
},
_uiHash: function(){
return {
primary: this.primaryMenu,
secondary: this.secondaryMenu,
container: this.secondaryMenuContainer
};
}
});
})( jQuery );