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parse-options.js
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72 lines (54 loc) · 2.12 KB
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'use strict';
angular.module('mgcrea.ngStrap.helpers.parseOptions', [])
.provider('$parseOptions', function() {
var defaults = this.defaults = {
regexp: /^\s*(.*?)(?:\s+as\s+(.*?))?(?:\s+group\s+by\s+(.*))?\s+for\s+(?:([\$\w][\$\w]*)|(?:\(\s*([\$\w][\$\w]*)\s*,\s*([\$\w][\$\w]*)\s*\)))\s+in\s+(.*?)(?:\s+track\s+by\s+(.*?))?$/
};
this.$get = function($parse, $q) {
function ParseOptionsFactory(attr, config) {
var $parseOptions = {};
// Common vars
var options = angular.extend({}, defaults, config);
$parseOptions.$values = [];
// Private vars
var match, displayFn, valueName, keyName, groupByFn, valueFn, valuesFn;
$parseOptions.init = function() {
$parseOptions.$match = match = attr.match(options.regexp);
displayFn = $parse(match[2] || match[1]),
valueName = match[4] || match[6],
keyName = match[5],
groupByFn = $parse(match[3] || ''),
valueFn = $parse(match[2] ? match[1] : valueName),
valuesFn = $parse(match[7]);
};
$parseOptions.valuesFn = function(scope, controller) {
return $q.when(valuesFn(scope, controller))
.then(function(values) {
if(!angular.isArray(values)) {
values = [];
}
$parseOptions.$values = values.length ? parseValues(values, scope) : [];
return $parseOptions.$values;
});
};
$parseOptions.displayValue = function(modelValue) {
var scope = {};
scope[valueName] = modelValue;
return displayFn(scope);
};
// Private functions
function parseValues(values, scope) {
return values.map(function(match, index) {
var locals = {}, label, value;
locals[valueName] = match;
label = displayFn(scope, locals);
value = valueFn(scope, locals);
return {label: label, value: value, index: index};
});
}
$parseOptions.init();
return $parseOptions;
}
return ParseOptionsFactory;
};
});