forked from select2/select2
/
select.js
285 lines (209 loc) · 5.9 KB
/
select.js
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define([
'./base',
'../utils',
'jquery'
], function (BaseAdapter, Utils, $) {
function SelectAdapter ($element, options) {
this.$element = $element;
this.options = options;
SelectAdapter.__super__.constructor.call(this);
}
Utils.Extend(SelectAdapter, BaseAdapter);
SelectAdapter.prototype.current = function (callback) {
var data = [];
var self = this;
this.$element.find(':selected').each(function () {
var $option = $(this);
var option = self.item($option);
data.push(option);
});
callback(data);
};
SelectAdapter.prototype.select = function (data) {
var self = this;
data.selected = true;
// If data.element is a DOM node, use it instead
if ($(data.element).is('option')) {
data.element.selected = true;
this.$element.trigger('input').trigger('change');
return;
}
if (this.$element.prop('multiple')) {
this.current(function (currentData) {
var val = [];
data = [data];
data.push.apply(data, currentData);
for (var d = 0; d < data.length; d++) {
var id = data[d].id;
if ($.inArray(id, val) === -1) {
val.push(id);
}
}
self.$element.val(val);
self.$element.trigger('input').trigger('change');
});
} else {
var val = data.id;
this.$element.val(val);
this.$element.trigger('input').trigger('change');
}
};
SelectAdapter.prototype.unselect = function (data) {
var self = this;
if (!this.$element.prop('multiple')) {
return;
}
data.selected = false;
if ($(data.element).is('option')) {
data.element.selected = false;
this.$element.trigger('input').trigger('change');
return;
}
this.current(function (currentData) {
var val = [];
for (var d = 0; d < currentData.length; d++) {
var id = currentData[d].id;
if (id !== data.id && $.inArray(id, val) === -1) {
val.push(id);
}
}
self.$element.val(val);
self.$element.trigger('input').trigger('change');
});
};
SelectAdapter.prototype.bind = function (container, $container) {
var self = this;
this.container = container;
container.on('select', function (params) {
self.select(params.data);
});
container.on('unselect', function (params) {
self.unselect(params.data);
});
};
SelectAdapter.prototype.destroy = function () {
// Remove anything added to child elements
this.$element.find('*').each(function () {
// Remove any custom data set by Select2
Utils.RemoveData(this);
});
};
SelectAdapter.prototype.query = function (params, callback) {
var data = [];
var self = this;
var $options = this.$element.children();
$options.each(function () {
var $option = $(this);
if (!$option.is('option') && !$option.is('optgroup')) {
return;
}
var option = self.item($option);
var matches = self.matches(params, option);
if (matches !== null) {
data.push(matches);
}
});
callback({
results: data
});
};
SelectAdapter.prototype.addOptions = function ($options) {
Utils.appendMany(this.$element, $options);
};
SelectAdapter.prototype.option = function (data) {
var option;
if (data.children) {
option = document.createElement('optgroup');
option.label = data.text;
} else {
option = document.createElement('option');
if (option.textContent !== undefined) {
option.textContent = data.text;
} else {
option.innerText = data.text;
}
}
if (data.id !== undefined) {
option.value = data.id;
}
if (data.disabled) {
option.disabled = true;
}
if (data.selected) {
option.selected = true;
}
if (data.title) {
option.title = data.title;
}
var $option = $(option);
var normalizedData = this._normalizeItem(data);
normalizedData.element = option;
// Override the option's data with the combined data
Utils.StoreData(option, 'data', normalizedData);
return $option;
};
SelectAdapter.prototype.item = function ($option) {
var data = {};
data = Utils.GetData($option[0], 'data');
if (data != null) {
return data;
}
if ($option.is('option')) {
data = {
id: $option.val(),
text: $option.text(),
disabled: $option.prop('disabled'),
selected: $option.prop('selected'),
title: $option.prop('title')
};
} else if ($option.is('optgroup')) {
data = {
text: $option.prop('label'),
children: [],
title: $option.prop('title')
};
var $children = $option.children('option');
var children = [];
for (var c = 0; c < $children.length; c++) {
var $child = $($children[c]);
var child = this.item($child);
children.push(child);
}
data.children = children;
}
data = this._normalizeItem(data);
data.element = $option[0];
Utils.StoreData($option[0], 'data', data);
return data;
};
SelectAdapter.prototype._normalizeItem = function (item) {
if (item !== Object(item)) {
item = {
id: item,
text: item
};
}
item = $.extend({}, {
text: ''
}, item);
var defaults = {
selected: false,
disabled: false
};
if (item.id != null) {
item.id = item.id.toString();
}
if (item.text != null) {
item.text = item.text.toString();
}
if (item._resultId == null && item.id && this.container != null) {
item._resultId = this.generateResultId(this.container, item);
}
return $.extend({}, defaults, item);
};
SelectAdapter.prototype.matches = function (params, data) {
var matcher = this.options.get('matcher');
return matcher(params, data);
};
return SelectAdapter;
});