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/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
/**
* @api
*/
define([
'underscore',
'mageUtils',
'uiRegistry',
'./abstract',
'uiLayout'
], function (_, utils, registry, Abstract, layout) {
'use strict';
var inputNode = {
parent: '${ $.$data.parentName }',
component: 'Magento_Ui/js/form/element/abstract',
template: '${ $.$data.template }',
provider: '${ $.$data.provider }',
name: '${ $.$data.index }_input',
dataScope: '${ $.$data.customEntry }',
customScope: '${ $.$data.customScope }',
sortOrder: {
after: '${ $.$data.name }'
},
displayArea: 'body',
label: '${ $.$data.label }'
};
/**
* Parses incoming options, considers options with undefined value property
* as caption
*
* @param {Array} nodes
* @return {Object}
*/
function parseOptions(nodes, captionValue) {
var caption,
value;
nodes = _.map(nodes, function (node) {
value = node.value;
if (value === null || value === captionValue) {
if (_.isUndefined(caption)) {
caption = node.label;
}
} else {
return node;
}
});
return {
options: _.compact(nodes),
caption: _.isString(caption) ? caption : false
};
}
/**
* Recursively loops over data to find non-undefined, non-array value
*
* @param {Array} data
* @return {*} - first non-undefined value in array
*/
function findFirst(data) {
var value;
data.some(function (node) {
value = node.value;
if (Array.isArray(value)) {
value = findFirst(value);
}
return !_.isUndefined(value);
});
return value;
}
/**
* Recursively set to object item like value and item.value like key.
*
* @param {Array} data
* @param {Object} result
* @returns {Object}
*/
function indexOptions(data, result) {
var value;
result = result || {};
data.forEach(function (item) {
value = item.value;
if (Array.isArray(value)) {
indexOptions(value, result);
} else {
result[value] = item;
}
});
return result;
}
return Abstract.extend({
defaults: {
customName: '${ $.parentName }.${ $.index }_input',
elementTmpl: 'ui/form/element/select',
caption: '',
options: []
},
/**
* Extends instance with defaults, extends config with formatted values
* and options, and invokes initialize method of AbstractElement class.
* If instance's 'customEntry' property is set to true, calls 'initInput'
*/
initialize: function () {
this._super();
if (this.customEntry) {
registry.get(this.name, this.initInput.bind(this));
}
if (this.filterBy) {
this.initFilter();
}
return this;
},
/**
* Calls 'initObservable' of parent, initializes 'options' and 'initialOptions'
* properties, calls 'setOptions' passing options to it
*
* @returns {Object} Chainable.
*/
initObservable: function () {
this._super();
this.initialOptions = this.options;
this.observe('options caption')
.setOptions(this.options());
return this;
},
/**
* Set link for filter.
*
* @returns {Object} Chainable
*/
initFilter: function () {
var filter = this.filterBy;
this.filter(this.default, filter.field);
this.setLinks({
filter: filter.target
}, 'imports');
return this;
},
/**
* Creates input from template, renders it via renderer.
*
* @returns {Object} Chainable.
*/
initInput: function () {
layout([utils.template(inputNode, this)]);
return this;
},
/**
* Matches specified value with existing options
* or, if value is not specified, returns value of the first option.
*
* @returns {*}
*/
normalizeData: function () {
var value = this._super(),
option;
if (value !== '') {
option = this.getOption(value);
return option && option.value;
}
if (!this.caption()) {
return findFirst(this.options);
}
},
/**
* Filters 'initialOptions' property by 'field' and 'value' passed,
* calls 'setOptions' passing the result to it
*
* @param {*} value
* @param {String} field
*/
filter: function (value, field) {
var source = this.initialOptions,
result;
field = field || this.filterBy.field;
result = _.filter(source, function (item) {
return item[field] === value || item.value === '';
});
this.setOptions(result);
},
/**
* Change visibility for input.
*
* @param {Boolean} isVisible
*/
toggleInput: function (isVisible) {
registry.get(this.customName, function (input) {
input.setVisible(isVisible);
});
},
/**
* Sets 'data' to 'options' observable array, if instance has
* 'customEntry' property set to true, calls 'setHidden' method
* passing !options.length as a parameter
*
* @param {Array} data
* @returns {Object} Chainable
*/
setOptions: function (data) {
var captionValue = this.captionValue || '',
result = parseOptions(data, captionValue),
isVisible;
this.indexedOptions = indexOptions(result.options);
this.options(result.options);
if (!this.caption()) {
this.caption(result.caption);
}
if (this.customEntry) {
isVisible = !!result.options.length;
this.setVisible(isVisible);
this.toggleInput(!isVisible);
}
return this;
},
/**
* Processes preview for option by it's value, and sets the result
* to 'preview' observable
*
* @returns {Object} Chainable.
*/
getPreview: function () {
var value = this.value(),
option = this.indexedOptions[value],
preview = option ? option.label : '';
this.preview(preview);
return preview;
},
/**
* Get option from indexedOptions list.
*
* @param {Number} value
* @returns {Object} Chainable
*/
getOption: function (value) {
return this.indexedOptions[value];
},
/**
* Select first available option
*
* @returns {Object} Chainable.
*/
clear: function () {
var value = this.caption() ? '' : findFirst(this.options);
this.value(value);
return this;
},
/**
* Initializes observable properties of instance
*
* @returns {Object} Chainable.
*/
setInitialValue: function () {
if (_.isUndefined(this.value()) && !this.default) {
this.clear();
}
return this._super();
}
});
});