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1008 lines
31 KiB
1008 lines
31 KiB
/*
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* # Semantic - Dropdown
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* http://github.com/jlukic/semantic-ui/
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*
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*
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* Copyright 2014 Contributors
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* Released under the MIT license
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* http://opensource.org/licenses/MIT
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*
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*/
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;(function ( $, window, document, undefined ) {
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module.exports = function(parameters) {
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var _module = module;
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var
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$allModules = $(this),
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$document = $(document),
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moduleSelector = $allModules.selector || '',
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hasTouch = ('ontouchstart' in document.documentElement),
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time = new Date().getTime(),
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performance = [],
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query = arguments[0],
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methodInvoked = (typeof query == 'string'),
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queryArguments = [].slice.call(arguments, 1),
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returnedValue
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;
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$allModules
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.each(function() {
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var
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settings = ( $.isPlainObject(parameters) )
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? $.extend(true, {}, _module.exports.settings, parameters)
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: $.extend({}, _module.exports.settings),
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className = settings.className,
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metadata = settings.metadata,
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namespace = settings.namespace,
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selector = settings.selector,
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error = settings.error,
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eventNamespace = '.' + namespace,
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moduleNamespace = 'module-' + namespace,
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$module = $(this),
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$item = $module.find(selector.item),
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$text = $module.find(selector.text),
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$input = $module.find(selector.input),
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$menu = $module.children(selector.menu),
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element = this,
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instance = $module.data(moduleNamespace),
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module
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;
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module = {
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initialize: function() {
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module.debug('Initializing dropdown', settings);
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module.save.defaults();
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module.set.selected();
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if(hasTouch) {
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module.bind.touchEvents();
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}
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module.bind.mouseEvents();
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module.bind.keyboardEvents();
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module.instantiate();
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},
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instantiate: function() {
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module.verbose('Storing instance of dropdown', module);
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instance = module;
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$module
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.data(moduleNamespace, module)
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;
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},
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destroy: function() {
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module.verbose('Destroying previous dropdown for', $module);
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$item
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.off(eventNamespace)
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;
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$module
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.off(eventNamespace)
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.removeData(moduleNamespace)
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;
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},
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bind: {
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keyboardEvents: function() {
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module.debug('Binding keyboard events');
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$module
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.on('keydown' + eventNamespace, module.handleKeyboard)
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;
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$module
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.on('focus' + eventNamespace, module.show)
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;
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},
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touchEvents: function() {
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module.debug('Touch device detected binding touch events');
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$module
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.on('touchstart' + eventNamespace, module.event.test.toggle)
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;
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$item
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.on('touchstart' + eventNamespace, module.event.item.mouseenter)
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.on('touchstart' + eventNamespace, module.event.item.click)
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;
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},
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mouseEvents: function() {
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module.verbose('Mouse detected binding mouse events');
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if(settings.on == 'click') {
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$module
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.on('click' + eventNamespace, module.event.test.toggle)
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;
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}
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else if(settings.on == 'hover') {
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$module
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.on('mouseenter' + eventNamespace, module.delay.show)
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.on('mouseleave' + eventNamespace, module.delay.hide)
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;
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}
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else {
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$module
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.on(settings.on + eventNamespace, module.toggle)
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;
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}
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$item
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.on('mouseenter' + eventNamespace, module.event.item.mouseenter)
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.on('mouseleave' + eventNamespace, module.event.item.mouseleave)
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.on('click' + eventNamespace, module.event.item.click)
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;
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},
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intent: function() {
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module.verbose('Binding hide intent event to document');
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if(hasTouch) {
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$document
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.on('touchstart' + eventNamespace, module.event.test.touch)
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.on('touchmove' + eventNamespace, module.event.test.touch)
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;
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}
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$document
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.on('click' + eventNamespace, module.event.test.hide)
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;
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}
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},
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unbind: {
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intent: function() {
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module.verbose('Removing hide intent event from document');
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if(hasTouch) {
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$document
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.off('touchstart' + eventNamespace)
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.off('touchmove' + eventNamespace)
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;
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}
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$document
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.off('click' + eventNamespace)
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;
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}
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},
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handleKeyboard: function(event) {
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var
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$selectedItem = $item.filter('.' + className.selected),
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pressedKey = event.which,
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keys = {
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enter : 13,
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escape : 27,
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upArrow : 38,
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downArrow : 40
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},
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selectedClass = className.selected,
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currentIndex = $item.index( $selectedItem ),
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hasSelectedItem = ($selectedItem.size() > 0),
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resultSize = $item.size(),
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newIndex
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;
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// close shortcuts
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if(pressedKey == keys.escape) {
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module.verbose('Escape key pressed, closing dropdown');
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module.hide();
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}
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// result shortcuts
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if(module.is.visible()) {
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if(pressedKey == keys.enter && hasSelectedItem) {
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module.verbose('Enter key pressed, choosing selected item');
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$.proxy(module.event.item.click, $item.filter('.' + selectedClass) )(event);
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event.preventDefault();
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return false;
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}
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else if(pressedKey == keys.upArrow) {
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module.verbose('Up key pressed, changing active item');
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newIndex = (currentIndex - 1 < 0)
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? currentIndex
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: currentIndex - 1
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;
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$item
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.removeClass(selectedClass)
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.eq(newIndex)
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.addClass(selectedClass)
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;
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event.preventDefault();
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}
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else if(pressedKey == keys.downArrow) {
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module.verbose('Down key pressed, changing active item');
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newIndex = (currentIndex + 1 >= resultSize)
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? currentIndex
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: currentIndex + 1
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;
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$item
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.removeClass(selectedClass)
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.eq(newIndex)
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.addClass(selectedClass)
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;
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event.preventDefault();
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}
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}
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else {
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if(pressedKey == keys.enter) {
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module.show();
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}
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}
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},
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event: {
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test: {
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toggle: function(event) {
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if( module.determine.intent(event, module.toggle) ) {
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event.preventDefault();
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}
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},
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touch: function(event) {
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module.determine.intent(event, function() {
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if(event.type == 'touchstart') {
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module.timer = setTimeout(module.hide, settings.delay.touch);
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}
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else if(event.type == 'touchmove') {
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clearTimeout(module.timer);
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}
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});
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event.stopPropagation();
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},
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hide: function(event) {
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module.determine.intent(event, module.hide);
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}
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},
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item: {
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mouseenter: function(event) {
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var
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$currentMenu = $(this).find(selector.submenu),
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$otherMenus = $(this).siblings(selector.item).children(selector.menu)
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;
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if($currentMenu.length > 0 || $otherMenus.length > 0) {
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clearTimeout(module.itemTimer);
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module.itemTimer = setTimeout(function() {
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if($otherMenus.length > 0) {
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module.animate.hide(false, $otherMenus.filter(':visible'));
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}
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if($currentMenu.length > 0) {
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module.verbose('Showing sub-menu', $currentMenu);
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module.animate.show(false, $currentMenu);
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}
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}, settings.delay.show * 2);
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event.preventDefault();
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event.stopPropagation();
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}
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},
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mouseleave: function(event) {
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var
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$currentMenu = $(this).find(selector.menu)
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;
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if($currentMenu.size() > 0) {
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clearTimeout(module.itemTimer);
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module.itemTimer = setTimeout(function() {
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module.verbose('Hiding sub-menu', $currentMenu);
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module.animate.hide(false, $currentMenu);
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}, settings.delay.hide);
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}
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},
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click: function (event) {
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var
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$choice = $(this),
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text = ( $choice.data(metadata.text) !== undefined )
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? $choice.data(metadata.text)
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: $choice.text(),
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value = ( $choice.data(metadata.value) !== undefined)
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? $choice.data(metadata.value)
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: (typeof text === 'string')
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? text.toLowerCase()
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: text,
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callback = function() {
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module.determine.selectAction(text, value);
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$.proxy(settings.onChange, element)(value, text);
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}
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;
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if( $choice.find(selector.menu).size() === 0 ) {
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if(event.type == 'touchstart') {
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$choice.one('click', callback);
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}
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else {
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callback();
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}
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}
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}
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},
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resetStyle: function() {
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$(this).removeAttr('style');
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}
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},
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determine: {
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selectAction: function(text, value) {
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module.verbose('Determining action', settings.action);
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if( $.isFunction( module.action[settings.action] ) ) {
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module.verbose('Triggering preset action', settings.action, text, value);
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module.action[ settings.action ](text, value);
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}
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else if( $.isFunction(settings.action) ) {
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module.verbose('Triggering user action', settings.action, text, value);
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settings.action(text, value);
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}
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else {
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module.error(error.action, settings.action);
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}
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},
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intent: function(event, callback) {
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module.debug('Determining whether event occurred in dropdown', event.target);
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callback = callback || function(){};
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if( $(event.target).closest($menu).size() === 0 ) {
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module.verbose('Triggering event', callback);
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callback();
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return true;
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}
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else {
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module.verbose('Event occurred in dropdown, canceling callback');
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return false;
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}
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}
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},
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action: {
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nothing: function() {},
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hide: function() {
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module.hide();
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},
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activate: function(text, value) {
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value = (value !== undefined)
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? value
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: text
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;
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module.set.selected(value);
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module.set.value(value);
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module.hide();
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},
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/* Deprecated */
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auto: function(text, value) {
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value = (value !== undefined)
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? value
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: text
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;
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module.set.selected(value);
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module.set.value(value);
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module.hide();
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},
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/* Deprecated */
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changeText: function(text, value) {
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value = (value !== undefined)
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? value
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: text
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;
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module.set.selected(value);
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module.hide();
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},
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/* Deprecated */
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updateForm: function(text, value) {
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value = (value !== undefined)
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? value
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: text
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;
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module.set.selected(value);
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module.set.value(value);
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module.hide();
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}
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},
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get: {
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text: function() {
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return $text.text();
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},
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value: function() {
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return ($input.size() > 0)
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? $input.val()
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: $module.data(metadata.value)
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;
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},
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item: function(value, strict) {
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var
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$selectedItem = false
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;
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value = (value !== undefined)
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? value
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: ( module.get.value() !== undefined)
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? module.get.value()
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: module.get.text()
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;
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if(strict === undefined && value === '') {
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module.debug('Ambiguous dropdown value using strict type check', value);
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strict = true;
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}
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else {
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strict = strict || false;
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}
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if(value !== undefined) {
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$item
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.each(function() {
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var
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$choice = $(this),
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optionText = ( $choice.data(metadata.text) !== undefined )
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? $choice.data(metadata.text)
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: $choice.text(),
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optionValue = ( $choice.data(metadata.value) !== undefined )
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? $choice.data(metadata.value)
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: (typeof optionText === 'string')
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? optionText.toLowerCase()
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: optionText
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;
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if(strict) {
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if( optionValue === value ) {
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$selectedItem = $(this);
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}
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else if( !$selectedItem && optionText === value ) {
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$selectedItem = $(this);
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}
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}
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else {
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if( optionValue == value ) {
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$selectedItem = $(this);
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}
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else if( !$selectedItem && optionText == value ) {
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$selectedItem = $(this);
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}
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}
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})
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;
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}
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else {
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value = module.get.text();
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}
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return $selectedItem || false;
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}
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},
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restore: {
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defaults: function() {
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module.restore.defaultText();
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module.restore.defaultValue();
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},
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defaultText: function() {
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var
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defaultText = $module.data(metadata.defaultText)
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;
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module.debug('Restoring default text', defaultText);
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module.set.text(defaultText);
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},
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defaultValue: function() {
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var
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defaultValue = $module.data(metadata.defaultValue)
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;
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if(defaultValue !== undefined) {
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module.debug('Restoring default value', defaultValue);
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module.set.selected(defaultValue);
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module.set.value(defaultValue);
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}
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}
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},
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save: {
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defaults: function() {
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module.save.defaultText();
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module.save.defaultValue();
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},
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defaultValue: function() {
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$module.data(metadata.defaultValue, module.get.value() );
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},
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defaultText: function() {
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$module.data(metadata.defaultText, $text.text() );
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}
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},
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set: {
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text: function(text) {
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module.debug('Changing text', text, $text);
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$text.removeClass(className.placeholder);
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$text.text(text);
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},
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value: function(value) {
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module.debug('Adding selected value to hidden input', value, $input);
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if($input.size() > 0) {
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$input
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.val(value)
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.trigger('change')
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;
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}
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else {
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$module.data(metadata.value, value);
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}
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},
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active: function() {
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$module.addClass(className.active);
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},
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visible: function() {
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$module.addClass(className.visible);
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},
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selected: function(value) {
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var
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$selectedItem = module.get.item(value),
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selectedText
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;
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if($selectedItem) {
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module.debug('Setting selected menu item to', $selectedItem);
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selectedText = ($selectedItem.data(metadata.text) !== undefined)
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? $selectedItem.data(metadata.text)
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: $selectedItem.text()
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;
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$item
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.removeClass(className.active)
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;
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$selectedItem
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.addClass(className.active)
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;
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module.set.text(selectedText);
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}
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}
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},
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remove: {
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active: function() {
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$module.removeClass(className.active);
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},
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visible: function() {
|
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$module.removeClass(className.visible);
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}
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},
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is: {
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selection: function() {
|
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return $module.hasClass(className.selection);
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},
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animated: function($subMenu) {
|
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return ($subMenu)
|
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? $subMenu.is(':animated') || $subMenu.transition && $subMenu.transition('is animating')
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: $menu.is(':animated') || $menu.transition && $menu.transition('is animating')
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;
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},
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visible: function($subMenu) {
|
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return ($subMenu)
|
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? $subMenu.is(':visible')
|
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: $menu.is(':visible')
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;
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},
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hidden: function($subMenu) {
|
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return ($subMenu)
|
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? $subMenu.is(':not(:visible)')
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: $menu.is(':not(:visible)')
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;
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}
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},
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can: {
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click: function() {
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return (hasTouch || settings.on == 'click');
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},
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show: function() {
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return !$module.hasClass(className.disabled);
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}
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},
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animate: {
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show: function(callback, $subMenu) {
|
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var
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$currentMenu = $subMenu || $menu
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;
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callback = callback || function(){};
|
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if( module.is.hidden($currentMenu) ) {
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|
module.verbose('Doing menu show animation', $currentMenu);
|
|
if(settings.transition == 'none') {
|
|
callback();
|
|
}
|
|
else if($.fn.transition !== undefined && $module.transition('is supported')) {
|
|
$currentMenu
|
|
.transition({
|
|
animation : settings.transition + ' in',
|
|
duration : settings.duration,
|
|
complete : callback,
|
|
queue : false
|
|
})
|
|
;
|
|
}
|
|
else if(settings.transition == 'slide down') {
|
|
$currentMenu
|
|
.hide()
|
|
.clearQueue()
|
|
.children()
|
|
.clearQueue()
|
|
.css('opacity', 0)
|
|
.delay(50)
|
|
.animate({
|
|
opacity : 1
|
|
}, settings.duration, 'easeOutQuad', module.event.resetStyle)
|
|
.end()
|
|
.slideDown(100, 'easeOutQuad', function() {
|
|
$.proxy(module.event.resetStyle, this)();
|
|
callback();
|
|
})
|
|
;
|
|
}
|
|
else if(settings.transition == 'fade') {
|
|
$currentMenu
|
|
.hide()
|
|
.clearQueue()
|
|
.fadeIn(settings.duration, function() {
|
|
$.proxy(module.event.resetStyle, this)();
|
|
callback();
|
|
})
|
|
;
|
|
}
|
|
else {
|
|
module.error(error.transition, settings.transition);
|
|
}
|
|
}
|
|
},
|
|
hide: function(callback, $subMenu) {
|
|
var
|
|
$currentMenu = $subMenu || $menu
|
|
;
|
|
callback = callback || function(){};
|
|
if(module.is.visible($currentMenu) ) {
|
|
module.verbose('Doing menu hide animation', $currentMenu);
|
|
if($.fn.transition !== undefined && $module.transition('is supported')) {
|
|
$currentMenu
|
|
.transition({
|
|
animation : settings.transition + ' out',
|
|
duration : settings.duration,
|
|
complete : callback,
|
|
queue : false
|
|
})
|
|
;
|
|
}
|
|
else if(settings.transition == 'none') {
|
|
callback();
|
|
}
|
|
else if(settings.transition == 'slide down') {
|
|
$currentMenu
|
|
.show()
|
|
.clearQueue()
|
|
.children()
|
|
.clearQueue()
|
|
.css('opacity', 1)
|
|
.animate({
|
|
opacity : 0
|
|
}, 100, 'easeOutQuad', module.event.resetStyle)
|
|
.end()
|
|
.delay(50)
|
|
.slideUp(100, 'easeOutQuad', function() {
|
|
$.proxy(module.event.resetStyle, this)();
|
|
callback();
|
|
})
|
|
;
|
|
}
|
|
else if(settings.transition == 'fade') {
|
|
$currentMenu
|
|
.show()
|
|
.clearQueue()
|
|
.fadeOut(150, function() {
|
|
$.proxy(module.event.resetStyle, this)();
|
|
callback();
|
|
})
|
|
;
|
|
}
|
|
else {
|
|
module.error(error.transition);
|
|
}
|
|
}
|
|
}
|
|
},
|
|
|
|
show: function() {
|
|
module.debug('Checking if dropdown can show');
|
|
if( module.is.hidden() ) {
|
|
module.hideOthers();
|
|
module.set.active();
|
|
module.animate.show(function() {
|
|
if( module.can.click() ) {
|
|
module.bind.intent();
|
|
}
|
|
module.set.visible();
|
|
});
|
|
$.proxy(settings.onShow, element)();
|
|
}
|
|
},
|
|
|
|
hide: function() {
|
|
if( !module.is.animated() && module.is.visible() ) {
|
|
module.debug('Hiding dropdown');
|
|
if( module.can.click() ) {
|
|
module.unbind.intent();
|
|
}
|
|
module.remove.active();
|
|
module.animate.hide(module.remove.visible);
|
|
$.proxy(settings.onHide, element)();
|
|
}
|
|
},
|
|
|
|
delay: {
|
|
show: function() {
|
|
module.verbose('Delaying show event to ensure user intent');
|
|
clearTimeout(module.timer);
|
|
module.timer = setTimeout(module.show, settings.delay.show);
|
|
},
|
|
hide: function() {
|
|
module.verbose('Delaying hide event to ensure user intent');
|
|
clearTimeout(module.timer);
|
|
module.timer = setTimeout(module.hide, settings.delay.hide);
|
|
}
|
|
},
|
|
|
|
hideOthers: function() {
|
|
module.verbose('Finding other dropdowns to hide');
|
|
$allModules
|
|
.not($module)
|
|
.has(selector.menu + ':visible')
|
|
.dropdown('hide')
|
|
;
|
|
},
|
|
|
|
toggle: function() {
|
|
module.verbose('Toggling menu visibility');
|
|
if( module.is.hidden() ) {
|
|
module.show();
|
|
}
|
|
else {
|
|
module.hide();
|
|
}
|
|
},
|
|
|
|
setting: function(name, value) {
|
|
if( $.isPlainObject(name) ) {
|
|
$.extend(true, settings, name);
|
|
}
|
|
else if(value !== undefined) {
|
|
settings[name] = value;
|
|
}
|
|
else {
|
|
return settings[name];
|
|
}
|
|
},
|
|
internal: function(name, value) {
|
|
if( $.isPlainObject(name) ) {
|
|
$.extend(true, module, name);
|
|
}
|
|
else if(value !== undefined) {
|
|
module[name] = value;
|
|
}
|
|
else {
|
|
return module[name];
|
|
}
|
|
},
|
|
debug: function() {
|
|
if(settings.debug) {
|
|
if(settings.performance) {
|
|
module.performance.log(arguments);
|
|
}
|
|
else {
|
|
module.debug = Function.prototype.bind.call(console.info, console, settings.name + ':');
|
|
module.debug.apply(console, arguments);
|
|
}
|
|
}
|
|
},
|
|
verbose: function() {
|
|
if(settings.verbose && settings.debug) {
|
|
if(settings.performance) {
|
|
module.performance.log(arguments);
|
|
}
|
|
else {
|
|
module.verbose = Function.prototype.bind.call(console.info, console, settings.name + ':');
|
|
module.verbose.apply(console, arguments);
|
|
}
|
|
}
|
|
},
|
|
error: function() {
|
|
module.error = Function.prototype.bind.call(console.error, console, settings.name + ':');
|
|
module.error.apply(console, arguments);
|
|
},
|
|
performance: {
|
|
log: function(message) {
|
|
var
|
|
currentTime,
|
|
executionTime,
|
|
previousTime
|
|
;
|
|
if(settings.performance) {
|
|
currentTime = new Date().getTime();
|
|
previousTime = time || currentTime;
|
|
executionTime = currentTime - previousTime;
|
|
time = currentTime;
|
|
performance.push({
|
|
'Element' : element,
|
|
'Name' : message[0],
|
|
'Arguments' : [].slice.call(message, 1) || '',
|
|
'Execution Time' : executionTime
|
|
});
|
|
}
|
|
clearTimeout(module.performance.timer);
|
|
module.performance.timer = setTimeout(module.performance.display, 100);
|
|
},
|
|
display: function() {
|
|
var
|
|
title = settings.name + ':',
|
|
totalTime = 0
|
|
;
|
|
time = false;
|
|
clearTimeout(module.performance.timer);
|
|
$.each(performance, function(index, data) {
|
|
totalTime += data['Execution Time'];
|
|
});
|
|
title += ' ' + totalTime + 'ms';
|
|
if(moduleSelector) {
|
|
title += ' \'' + moduleSelector + '\'';
|
|
}
|
|
if( (console.group !== undefined || console.table !== undefined) && performance.length > 0) {
|
|
console.groupCollapsed(title);
|
|
if(console.table) {
|
|
console.table(performance);
|
|
}
|
|
else {
|
|
$.each(performance, function(index, data) {
|
|
console.log(data['Name'] + ': ' + data['Execution Time']+'ms');
|
|
});
|
|
}
|
|
console.groupEnd();
|
|
}
|
|
performance = [];
|
|
}
|
|
},
|
|
invoke: function(query, passedArguments, context) {
|
|
var
|
|
object = instance,
|
|
maxDepth,
|
|
found,
|
|
response
|
|
;
|
|
passedArguments = passedArguments || queryArguments;
|
|
context = element || context;
|
|
if(typeof query == 'string' && object !== undefined) {
|
|
query = query.split(/[\. ]/);
|
|
maxDepth = query.length - 1;
|
|
$.each(query, function(depth, value) {
|
|
var camelCaseValue = (depth != maxDepth)
|
|
? value + query[depth + 1].charAt(0).toUpperCase() + query[depth + 1].slice(1)
|
|
: query
|
|
;
|
|
if( $.isPlainObject( object[camelCaseValue] ) && (depth != maxDepth) ) {
|
|
object = object[camelCaseValue];
|
|
}
|
|
else if( object[camelCaseValue] !== undefined ) {
|
|
found = object[camelCaseValue];
|
|
return false;
|
|
}
|
|
else if( $.isPlainObject( object[value] ) && (depth != maxDepth) ) {
|
|
object = object[value];
|
|
}
|
|
else if( object[value] !== undefined ) {
|
|
found = object[value];
|
|
return false;
|
|
}
|
|
else {
|
|
module.error(error.method, query);
|
|
return false;
|
|
}
|
|
});
|
|
}
|
|
if ( $.isFunction( found ) ) {
|
|
response = found.apply(context, passedArguments);
|
|
}
|
|
else if(found !== undefined) {
|
|
response = found;
|
|
}
|
|
if($.isArray(returnedValue)) {
|
|
returnedValue.push(response);
|
|
}
|
|
else if(returnedValue !== undefined) {
|
|
returnedValue = [returnedValue, response];
|
|
}
|
|
else if(response !== undefined) {
|
|
returnedValue = response;
|
|
}
|
|
return found;
|
|
}
|
|
};
|
|
|
|
if(methodInvoked) {
|
|
if(instance === undefined) {
|
|
module.initialize();
|
|
}
|
|
module.invoke(query);
|
|
}
|
|
else {
|
|
if(instance !== undefined) {
|
|
module.destroy();
|
|
}
|
|
module.initialize();
|
|
}
|
|
})
|
|
;
|
|
|
|
return (returnedValue !== undefined)
|
|
? returnedValue
|
|
: this
|
|
;
|
|
};
|
|
|
|
module.exports.settings = {
|
|
|
|
name : 'Dropdown',
|
|
namespace : 'dropdown',
|
|
|
|
debug : false,
|
|
verbose : true,
|
|
performance : true,
|
|
|
|
on : 'click',
|
|
action : 'activate',
|
|
|
|
delay: {
|
|
show : 200,
|
|
hide : 300,
|
|
touch : 50
|
|
},
|
|
|
|
transition : 'slide down',
|
|
duration : 250,
|
|
|
|
onChange : function(value, text){},
|
|
onShow : function(){},
|
|
onHide : function(){},
|
|
|
|
error : {
|
|
action : 'You called a dropdown action that was not defined',
|
|
method : 'The method you called is not defined.',
|
|
transition : 'The requested transition was not found'
|
|
},
|
|
|
|
metadata: {
|
|
defaultText : 'defaultText',
|
|
defaultValue : 'defaultValue',
|
|
text : 'text',
|
|
value : 'value'
|
|
},
|
|
|
|
selector : {
|
|
menu : '.menu',
|
|
submenu : '> .menu',
|
|
item : '.menu > .item',
|
|
text : '> .text',
|
|
input : '> input[type="hidden"]'
|
|
},
|
|
|
|
className : {
|
|
active : 'active',
|
|
placeholder : 'default',
|
|
disabled : 'disabled',
|
|
visible : 'visible',
|
|
selected : 'selected',
|
|
selection : 'selection'
|
|
}
|
|
|
|
};
|
|
|
|
// Adds easing
|
|
$.extend( $.easing, {
|
|
easeOutQuad: function (x, t, b, c, d) {
|
|
return -c *(t/=d)*(t-2) + b;
|
|
}
|
|
});
|
|
|
|
|
|
})( require("jquery"), window , document );
|