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selectbox.js
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selectbox.js
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define([
'path!vendor:jquery',
'path!vendor:underscore',
'path!gloss:widgets/widget',
'path!gloss:widgets/formwidget',
'path!gloss:widgets/menu',
'path!gloss:css!widgets/selectbox/selectbox.css'
], function($, _, Widget, FormWidget, Menu) {
return FormWidget.extend({
defaults: {
entries: null, // list of the format: [
// {content: '...', value: '...'},
// {content: '...', value: '...'},
// ...
// ]
collection: null, // collection object to populate entries
translator: function() { }, // function to translate the collection
// into the same format as the
// 'entries' option
collectionLoadArgs: {all: true},
// optionally set fixed width
width: null
},
create: function() {
var self = this, options = self.options, $replacement;
this._super();
self.entry = null;
self.opened = false;
self.populated = false;
if (options.entries == null) {
self.$node.children().each(function(i, el) {
var $el = $(el),
entries = options.entries = options.entries || [];
entries.push({content: $el.text(), value: $el.val()});
if ($el.is(':selected')) {
self.entry = _.last(entries);
}
});
}
if (self.node.tagName.toLowerCase() === 'select') {
self.$node.replaceWith($replacement = $('<div></div>'));
self.node = (self.$node = $replacement)[0];
} else {
self.$node.empty();
}
self.$node.addClass('selectbox');
if (self.$node.attr('tabindex') == null) {
self.$node.attr('tabindex', 0);
}
self.$node.append('<span class=arrow>▼</span>');
self.$text = $('<span class=content>')
.html(self.entry? self.entry.content : '')
.appendTo(self.$node);
self.$menu = $('<div>').hide().appendTo(self.$node);
self.menu = Menu(self.$menu, {
position: {my: 'left top', at: 'left bottom', of: self.$node},
width: self,
updateDisplay: false,
onselect: function(event, entry) {
self.toggle(false);
if (self.entry != null && entry.value !== self.entry.value) {
self.setValue(entry.value);
}
}
});
if (options.collection) {
options.collection.on('update', function(evtName, collection) {
var newEntries = options.translator?
_.map(collection.models, options.translator) : collection.models;
self.set('entries', newEntries);
});
}
self.update();
self.on('click', self.toggle);
self.on('keydown', self.onKeyEvent);
},
getValue: function() {
if(this.entry != null) {
return this.entry.value;
} else if (/select/i.test(this.$node[0].tagName)) {
return this.$node.val();
} else {
return null;
}
},
onKeyEvent: function(event) {
var key = Widget.identifyKeyEvent(event),
offset = _.indexOf(this.options.entries, this.entry);
if(key === 'up' && offset > 0) {
if(this.open) {
} else {
}
} else if(key === 'down' && offset < (this.options.entries.length - 1)) {
}
},
setValue: function(value, silent) {
if(this.options.entries == null) {
if (/select/i.test(this.$node[0].tagName)) {
this.$node.val(value);
}
return this;
}
if(!$.isPlainObject(value)) {
value = _.find(this.options.entries, function(entry) {
return entry.value === value;
});
}
if(value != null) {
this.entry = value;
this.$text.html(this.entry.content);
if(!silent) {
this.trigger('change');
}
}
return this;
},
toggle: function(open) {
var self = this;
if(typeof open !== 'boolean') {
open = !self.opened;
}
if(open && !self.opened && !self.state.disabled) {
Widget.onPageClick(self.$node, function() {
self.toggle(false);
});
self.$node.addClass('open');
self.menu.show();
self.opened = true;
} else if(!open && self.opened) {
self.menu.hide();
self.$node.removeClass('open');
self.opened = false;
self.node.focus();
}
return self;
},
updateWidget: function(updated) {
var $node = this.$node, options = this.options, w;
if (updated.collection && options.collection) {
options.collection.load(options.collectionLoadArgs);
}
this.toggle(false);
if (updated.width && options.width != null) {
console.log('setting the width');
$node.width(options.width);
}
if(options.entries != null && options.entries.length > 0) {
this.populated = true;
} else {
this.populated = false;
return;
}
if (options.width == null) {
w = Widget.measureMinimumWidth(
$('<div/>').addClass($node.attr('class')),
_.pluck(options.entries, 'content'));
$node.find('.content').width(w);
}
if(options.initialValue != null) {
this.setValue(options.initialValue, true);
}
if(this.entry == null) {
this.entry = options.entries[0];
this.$text.html(this.entry.content);
}
this.menu.set('entries', options.entries);
}
});
});