src/js/select2/defaults.js
define([
'jquery',
'./results',
'./selection/single',
'./selection/multiple',
'./selection/placeholder',
'./selection/allowClear',
'./selection/search',
'./selection/selectionCss',
'./selection/eventRelay',
'./utils',
'./translation',
'./diacritics',
'./data/select',
'./data/array',
'./data/ajax',
'./data/tags',
'./data/tokenizer',
'./data/minimumInputLength',
'./data/maximumInputLength',
'./data/maximumSelectionLength',
'./dropdown',
'./dropdown/search',
'./dropdown/hidePlaceholder',
'./dropdown/infiniteScroll',
'./dropdown/attachBody',
'./dropdown/minimumResultsForSearch',
'./dropdown/selectOnClose',
'./dropdown/closeOnSelect',
'./dropdown/dropdownCss',
'./i18n/en'
], function ($,
ResultsList,
SingleSelection, MultipleSelection, Placeholder, AllowClear,
SelectionSearch, SelectionCSS, EventRelay,
Utils, Translation, DIACRITICS,
SelectData, ArrayData, AjaxData, Tags, Tokenizer,
MinimumInputLength, MaximumInputLength, MaximumSelectionLength,
Dropdown, DropdownSearch, HidePlaceholder, InfiniteScroll,
AttachBody, MinimumResultsForSearch, SelectOnClose, CloseOnSelect,
DropdownCSS,
EnglishTranslation) {
function Defaults () {
this.reset();
}
Defaults.prototype.apply = function (options) {
options = $.extend(true, {}, this.defaults, options);
if (options.dataAdapter == null) {
if (options.ajax != null) {
options.dataAdapter = AjaxData;
} else if (options.data != null) {
options.dataAdapter = ArrayData;
} else {
options.dataAdapter = SelectData;
}
if (options.minimumInputLength > 0) {
options.dataAdapter = Utils.Decorate(
options.dataAdapter,
MinimumInputLength
);
}
if (options.maximumInputLength > 0) {
options.dataAdapter = Utils.Decorate(
options.dataAdapter,
MaximumInputLength
);
}
if (options.maximumSelectionLength > 0) {
options.dataAdapter = Utils.Decorate(
options.dataAdapter,
MaximumSelectionLength
);
}
if (options.tags) {
options.dataAdapter = Utils.Decorate(options.dataAdapter, Tags);
}
if (options.tokenSeparators != null || options.tokenizer != null) {
options.dataAdapter = Utils.Decorate(
options.dataAdapter,
Tokenizer
);
}
}
if (options.resultsAdapter == null) {
options.resultsAdapter = ResultsList;
if (options.ajax != null) {
options.resultsAdapter = Utils.Decorate(
options.resultsAdapter,
InfiniteScroll
);
}
if (options.placeholder != null) {
options.resultsAdapter = Utils.Decorate(
options.resultsAdapter,
HidePlaceholder
);
}
if (options.selectOnClose) {
options.resultsAdapter = Utils.Decorate(
options.resultsAdapter,
SelectOnClose
);
}
}
if (options.dropdownAdapter == null) {
if (options.multiple) {
options.dropdownAdapter = Dropdown;
} else {
var SearchableDropdown = Utils.Decorate(Dropdown, DropdownSearch);
options.dropdownAdapter = SearchableDropdown;
}
if (options.minimumResultsForSearch !== 0) {
options.dropdownAdapter = Utils.Decorate(
options.dropdownAdapter,
MinimumResultsForSearch
);
}
if (options.closeOnSelect) {
options.dropdownAdapter = Utils.Decorate(
options.dropdownAdapter,
CloseOnSelect
);
}
if (options.dropdownCssClass != null) {
options.dropdownAdapter = Utils.Decorate(
options.dropdownAdapter,
DropdownCSS
);
}
options.dropdownAdapter = Utils.Decorate(
options.dropdownAdapter,
AttachBody
);
}
if (options.selectionAdapter == null) {
if (options.multiple) {
options.selectionAdapter = MultipleSelection;
} else {
options.selectionAdapter = SingleSelection;
}
// Add the placeholder mixin if a placeholder was specified
if (options.placeholder != null) {
options.selectionAdapter = Utils.Decorate(
options.selectionAdapter,
Placeholder
);
}
if (options.allowClear) {
options.selectionAdapter = Utils.Decorate(
options.selectionAdapter,
AllowClear
);
}
if (options.multiple) {
options.selectionAdapter = Utils.Decorate(
options.selectionAdapter,
SelectionSearch
);
}
if (options.selectionCssClass != null) {
options.selectionAdapter = Utils.Decorate(
options.selectionAdapter,
SelectionCSS
);
}
options.selectionAdapter = Utils.Decorate(
options.selectionAdapter,
EventRelay
);
}
// If the defaults were not previously applied from an element, it is
// possible for the language option to have not been resolved
options.language = this._resolveLanguage(options.language);
// Always fall back to English since it will always be complete
options.language.push('en');
var uniqueLanguages = [];
for (var l = 0; l < options.language.length; l++) {
var language = options.language[l];
if (uniqueLanguages.indexOf(language) === -1) {
uniqueLanguages.push(language);
}
}
options.language = uniqueLanguages;
options.translations = this._processTranslations(
options.language,
options.debug
);
return options;
};
Defaults.prototype.reset = function () {
function stripDiacritics (text) {
// Used 'uni range + named function' from http://jsperf.com/diacritics/18
function match(a) {
return DIACRITICS[a] || a;
}
return text.replace(/[^\u0000-\u007E]/g, match);
}
function matcher (params, data) {
// Always return the object if there is nothing to compare
if (params.term == null || params.term.trim() === '') {
return data;
}
// Do a recursive check for options with children
if (data.children && data.children.length > 0) {
// Clone the data object if there are children
// This is required as we modify the object to remove any non-matches
var match = $.extend(true, {}, data);
// Check each child of the option
for (var c = data.children.length - 1; c >= 0; c--) {
var child = data.children[c];
var matches = matcher(params, child);
// If there wasn't a match, remove the object in the array
if (matches == null) {
match.children.splice(c, 1);
}
}
// If any children matched, return the new object
if (match.children.length > 0) {
return match;
}
// If there were no matching children, check just the plain object
return matcher(params, match);
}
var original = stripDiacritics(data.text).toUpperCase();
var term = stripDiacritics(params.term).toUpperCase();
// Check if the text contains the term
if (original.indexOf(term) > -1) {
return data;
}
// If it doesn't contain the term, don't return anything
return null;
}
this.defaults = {
amdLanguageBase: './i18n/',
autocomplete: 'off',
closeOnSelect: true,
debug: false,
dropdownAutoWidth: false,
escapeMarkup: Utils.escapeMarkup,
language: {},
matcher: matcher,
minimumInputLength: 0,
maximumInputLength: 0,
maximumSelectionLength: 0,
minimumResultsForSearch: 0,
selectOnClose: false,
scrollAfterSelect: false,
sorter: function (data) {
return data;
},
templateResult: function (result) {
return result.text;
},
templateSelection: function (selection) {
return selection.text;
},
theme: 'default',
width: 'resolve'
};
};
Defaults.prototype.applyFromElement = function (options, $element) {
var optionLanguage = options.language;
var defaultLanguage = this.defaults.language;
var elementLanguage = $element.prop('lang');
var parentLanguage = $element.closest('[lang]').prop('lang');
var languages = Array.prototype.concat.call(
this._resolveLanguage(elementLanguage),
this._resolveLanguage(optionLanguage),
this._resolveLanguage(defaultLanguage),
this._resolveLanguage(parentLanguage)
);
options.language = languages;
return options;
};
Defaults.prototype._resolveLanguage = function (language) {
if (!language) {
return [];
}
if ($.isEmptyObject(language)) {
return [];
}
if ($.isPlainObject(language)) {
return [language];
}
var languages;
if (!Array.isArray(language)) {
languages = [language];
} else {
languages = language;
}
var resolvedLanguages = [];
for (var l = 0; l < languages.length; l++) {
resolvedLanguages.push(languages[l]);
if (typeof languages[l] === 'string' && languages[l].indexOf('-') > 0) {
// Extract the region information if it is included
var languageParts = languages[l].split('-');
var baseLanguage = languageParts[0];
resolvedLanguages.push(baseLanguage);
}
}
return resolvedLanguages;
};
Defaults.prototype._processTranslations = function (languages, debug) {
var translations = new Translation();
for (var l = 0; l < languages.length; l++) {
var languageData = new Translation();
var language = languages[l];
if (typeof language === 'string') {
try {
// Try to load it with the original name
languageData = Translation.loadPath(language);
} catch (e) {
try {
// If we couldn't load it, check if it wasn't the full path
language = this.defaults.amdLanguageBase + language;
languageData = Translation.loadPath(language);
} catch (ex) {
// The translation could not be loaded at all. Sometimes this is
// because of a configuration problem, other times this can be
// because of how Select2 helps load all possible translation files
if (debug && window.console && console.warn) {
console.warn(
'Select2: The language file for "' + language + '" could ' +
'not be automatically loaded. A fallback will be used instead.'
);
}
}
}
} else if ($.isPlainObject(language)) {
languageData = new Translation(language);
} else {
languageData = language;
}
translations.extend(languageData);
}
return translations;
};
Defaults.prototype.set = function (key, value) {
var camelKey = $.camelCase(key);
var data = {};
data[camelKey] = value;
var convertedData = Utils._convertData(data);
$.extend(true, this.defaults, convertedData);
};
var defaults = new Defaults();
return defaults;
});