/*! * # Semantic UI 2.2.9 - Dropdown * http://github.com/semantic-org/semantic-ui/ * * * Released under the MIT license * http://opensource.org/licenses/MIT * */ ;(function ($, window, document, undefined) { "use strict"; window = (typeof window != 'undefined' && window.Math == Math) ? window : (typeof self != 'undefined' && self.Math == Math) ? self : Function('return this')() ; $.fn.dropdown = function(parameters) { var $allModules = $(this), $document = $(document), moduleSelector = $allModules.selector || '', hasTouch = ('ontouchstart' in document.documentElement), time = new Date().getTime(), performance = [], query = arguments[0], methodInvoked = (typeof query == 'string'), queryArguments = [].slice.call(arguments, 1), returnedValue ; $allModules .each(function(elementIndex) { var settings = ( $.isPlainObject(parameters) ) ? $.extend(true, {}, $.fn.dropdown.settings, parameters) : $.extend({}, $.fn.dropdown.settings), className = settings.className, message = settings.message, fields = settings.fields, keys = settings.keys, metadata = settings.metadata, namespace = settings.namespace, regExp = settings.regExp, selector = settings.selector, error = settings.error, templates = settings.templates, eventNamespace = '.' + namespace, moduleNamespace = 'module-' + namespace, $module = $(this), $context = $(settings.context), $text = $module.find(selector.text), $search = $module.find(selector.search), $sizer = $module.find(selector.sizer), $input = $module.find(selector.input), $icon = $module.find(selector.icon), $combo = ($module.prev().find(selector.text).length > 0) ? $module.prev().find(selector.text) : $module.prev(), $menu = $module.children(selector.menu), $item = $menu.find(selector.item), activated = false, itemActivated = false, internalChange = false, element = this, instance = $module.data(moduleNamespace), initialLoad, pageLostFocus, willRefocus, elementNamespace, id, selectObserver, menuObserver, module ; module = { initialize: function() { module.debug('Initializing dropdown', settings); if( module.is.alreadySetup() ) { module.setup.reference(); } else { module.setup.layout(); module.refreshData(); module.save.defaults(); module.restore.selected(); module.create.id(); module.bind.events(); module.observeChanges(); module.instantiate(); } }, instantiate: function() { module.verbose('Storing instance of dropdown', module); instance = module; $module .data(moduleNamespace, module) ; }, destroy: function() { module.verbose('Destroying previous dropdown', $module); module.remove.tabbable(); $module .off(eventNamespace) .removeData(moduleNamespace) ; $menu .off(eventNamespace) ; $document .off(elementNamespace) ; module.disconnect.menuObserver(); module.disconnect.selectObserver(); }, observeChanges: function() { if('MutationObserver' in window) { selectObserver = new MutationObserver(module.event.select.mutation); menuObserver = new MutationObserver(module.event.menu.mutation); module.debug('Setting up mutation observer', selectObserver, menuObserver); module.observe.select(); module.observe.menu(); } }, disconnect: { menuObserver: function() { if(menuObserver) { menuObserver.disconnect(); } }, selectObserver: function() { if(selectObserver) { selectObserver.disconnect(); } } }, observe: { select: function() { if(module.has.input()) { selectObserver.observe($input[0], { childList : true, subtree : true }); } }, menu: function() { if(module.has.menu()) { menuObserver.observe($menu[0], { childList : true, subtree : true }); } } }, create: { id: function() { id = (Math.random().toString(16) + '000000000').substr(2, 8); elementNamespace = '.' + id; module.verbose('Creating unique id for element', id); }, userChoice: function(values) { var $userChoices, $userChoice, isUserValue, html ; values = values || module.get.userValues(); if(!values) { return false; } values = $.isArray(values) ? values : [values] ; $.each(values, function(index, value) { if(module.get.item(value) === false) { html = settings.templates.addition( module.add.variables(message.addResult, value) ); $userChoice = $('
') .html(html) .attr('data-' + metadata.value, value) .attr('data-' + metadata.text, value) .addClass(className.addition) .addClass(className.item) ; if(settings.hideAdditions) { $userChoice.addClass(className.hidden); } $userChoices = ($userChoices === undefined) ? $userChoice : $userChoices.add($userChoice) ; module.verbose('Creating user choices for value', value, $userChoice); } }); return $userChoices; }, userLabels: function(value) { var userValues = module.get.userValues() ; if(userValues) { module.debug('Adding user labels', userValues); $.each(userValues, function(index, value) { module.verbose('Adding custom user value'); module.add.label(value, value); }); } }, menu: function() { $menu = $('
') .addClass(className.menu) .appendTo($module) ; }, sizer: function() { $sizer = $('') .addClass(className.sizer) .insertAfter($search) ; } }, search: function(query) { query = (query !== undefined) ? query : module.get.query() ; module.verbose('Searching for query', query); if(module.has.minCharacters(query)) { module.filter(query); } else { module.hide(); } }, select: { firstUnfiltered: function() { module.verbose('Selecting first non-filtered element'); module.remove.selectedItem(); $item .not(selector.unselectable) .not(selector.addition + selector.hidden) .eq(0) .addClass(className.selected) ; }, nextAvailable: function($selected) { $selected = $selected.eq(0); var $nextAvailable = $selected.nextAll(selector.item).not(selector.unselectable).eq(0), $prevAvailable = $selected.prevAll(selector.item).not(selector.unselectable).eq(0), hasNext = ($nextAvailable.length > 0) ; if(hasNext) { module.verbose('Moving selection to', $nextAvailable); $nextAvailable.addClass(className.selected); } else { module.verbose('Moving selection to', $prevAvailable); $prevAvailable.addClass(className.selected); } } }, setup: { api: function() { var apiSettings = { debug : settings.debug, urlData : { value : module.get.value(), query : module.get.query() }, on : false } ; module.verbose('First request, initializing API'); $module .api(apiSettings) ; }, layout: function() { if( $module.is('select') ) { module.setup.select(); module.setup.returnedObject(); } if( !module.has.menu() ) { module.create.menu(); } if( module.is.search() && !module.has.search() ) { module.verbose('Adding search input'); $search = $('') .addClass(className.search) .prop('autocomplete', 'off') .insertBefore($text) ; } if( module.is.multiple() && module.is.searchSelection() && !module.has.sizer()) { module.create.sizer(); } if(settings.allowTab) { module.set.tabbable(); } }, select: function() { var selectValues = module.get.selectValues() ; module.debug('Dropdown initialized on a select', selectValues); if( $module.is('select') ) { $input = $module; } // see if select is placed correctly already if($input.parent(selector.dropdown).length > 0) { module.debug('UI dropdown already exists. Creating dropdown menu only'); $module = $input.closest(selector.dropdown); if( !module.has.menu() ) { module.create.menu(); } $menu = $module.children(selector.menu); module.setup.menu(selectValues); } else { module.debug('Creating entire dropdown from select'); $module = $('
') .attr('class', $input.attr('class') ) .addClass(className.selection) .addClass(className.dropdown) .html( templates.dropdown(selectValues) ) .insertBefore($input) ; if($input.hasClass(className.multiple) && $input.prop('multiple') === false) { module.error(error.missingMultiple); $input.prop('multiple', true); } if($input.is('[multiple]')) { module.set.multiple(); } if ($input.prop('disabled')) { module.debug('Disabling dropdown'); $module.addClass(className.disabled); } $input .removeAttr('class') .detach() .prependTo($module) ; } module.refresh(); }, menu: function(values) { $menu.html( templates.menu(values, fields)); $item = $menu.find(selector.item); }, reference: function() { module.debug('Dropdown behavior was called on select, replacing with closest dropdown'); // replace module reference $module = $module.parent(selector.dropdown); module.refresh(); module.setup.returnedObject(); // invoke method in context of current instance if(methodInvoked) { instance = module; module.invoke(query); } }, returnedObject: function() { var $firstModules = $allModules.slice(0, elementIndex), $lastModules = $allModules.slice(elementIndex + 1) ; // adjust all modules to use correct reference $allModules = $firstModules.add($module).add($lastModules); } }, refresh: function() { module.refreshSelectors(); module.refreshData(); }, refreshItems: function() { $item = $menu.find(selector.item); }, refreshSelectors: function() { module.verbose('Refreshing selector cache'); $text = $module.find(selector.text); $search = $module.find(selector.search); $input = $module.find(selector.input); $icon = $module.find(selector.icon); $combo = ($module.prev().find(selector.text).length > 0) ? $module.prev().find(selector.text) : $module.prev() ; $menu = $module.children(selector.menu); $item = $menu.find(selector.item); }, refreshData: function() { module.verbose('Refreshing cached metadata'); $item .removeData(metadata.text) .removeData(metadata.value) ; }, clearData: function() { module.verbose('Clearing metadata'); $item .removeData(metadata.text) .removeData(metadata.value) ; $module .removeData(metadata.defaultText) .removeData(metadata.defaultValue) .removeData(metadata.placeholderText) ; }, toggle: function() { module.verbose('Toggling menu visibility'); if( !module.is.active() ) { module.show(); } else { module.hide(); } }, show: function(callback) { callback = $.isFunction(callback) ? callback : function(){} ; if(!module.can.show() && module.is.remote()) { module.debug('No API results retrieved, searching before show'); module.queryRemote(module.get.query(), module.show); } if( module.can.show() && !module.is.active() ) { module.debug('Showing dropdown'); if(module.has.message() && !(module.has.maxSelections() || module.has.allResultsFiltered()) ) { module.remove.message(); } if(module.is.allFiltered()) { return true; } if(settings.onShow.call(element) !== false) { module.animate.show(function() { if( module.can.click() ) { module.bind.intent(); } if(module.has.menuSearch()) { module.focusSearch(); } module.set.visible(); callback.call(element); }); } } }, hide: function(callback) { callback = $.isFunction(callback) ? callback : function(){} ; if( module.is.active() ) { module.debug('Hiding dropdown'); if(settings.onHide.call(element) !== false) { module.animate.hide(function() { module.remove.visible(); callback.call(element); }); } } }, hideOthers: function() { module.verbose('Finding other dropdowns to hide'); $allModules .not($module) .has(selector.menu + '.' + className.visible) .dropdown('hide') ; }, hideMenu: function() { module.verbose('Hiding menu instantaneously'); module.remove.active(); module.remove.visible(); $menu.transition('hide'); }, hideSubMenus: function() { var $subMenus = $menu.children(selector.item).find(selector.menu) ; module.verbose('Hiding sub menus', $subMenus); $subMenus.transition('hide'); }, bind: { events: function() { if(hasTouch) { module.bind.touchEvents(); } module.bind.keyboardEvents(); module.bind.inputEvents(); module.bind.mouseEvents(); }, touchEvents: function() { module.debug('Touch device detected binding additional touch events'); if( module.is.searchSelection() ) { // do nothing special yet } else if( module.is.single() ) { $module .on('touchstart' + eventNamespace, module.event.test.toggle) ; } $menu .on('touchstart' + eventNamespace, selector.item, module.event.item.mouseenter) ; }, keyboardEvents: function() { module.verbose('Binding keyboard events'); $module .on('keydown' + eventNamespace, module.event.keydown) ; if( module.has.search() ) { $module .on(module.get.inputEvent() + eventNamespace, selector.search, module.event.input) ; } if( module.is.multiple() ) { $document .on('keydown' + elementNamespace, module.event.document.keydown) ; } }, inputEvents: function() { module.verbose('Binding input change events'); $module .on('change' + eventNamespace, selector.input, module.event.change) ; }, mouseEvents: function() { module.verbose('Binding mouse events'); if(module.is.multiple()) { $module .on('click' + eventNamespace, selector.label, module.event.label.click) .on('click' + eventNamespace, selector.remove, module.event.remove.click) ; } if( module.is.searchSelection() ) { $module .on('mousedown' + eventNamespace, module.event.mousedown) .on('mouseup' + eventNamespace, module.event.mouseup) .on('mousedown' + eventNamespace, selector.menu, module.event.menu.mousedown) .on('mouseup' + eventNamespace, selector.menu, module.event.menu.mouseup) .on('click' + eventNamespace, selector.icon, module.event.icon.click) .on('focus' + eventNamespace, selector.search, module.event.search.focus) .on('click' + eventNamespace, selector.search, module.event.search.focus) .on('blur' + eventNamespace, selector.search, module.event.search.blur) .on('click' + eventNamespace, selector.text, module.event.text.focus) ; if(module.is.multiple()) { $module .on('click' + eventNamespace, module.event.click) ; } } else { if(settings.on == 'click') { $module .on('click' + eventNamespace, selector.icon, module.event.icon.click) .on('click' + eventNamespace, module.event.test.toggle) ; } else if(settings.on == 'hover') { $module .on('mouseenter' + eventNamespace, module.delay.show) .on('mouseleave' + eventNamespace, module.delay.hide) ; } else { $module .on(settings.on + eventNamespace, module.toggle) ; } $module .on('mousedown' + eventNamespace, module.event.mousedown) .on('mouseup' + eventNamespace, module.event.mouseup) .on('focus' + eventNamespace, module.event.focus) ; if(module.has.menuSearch() ) { $module .on('blur' + eventNamespace, selector.search, module.event.search.blur) ; } else { $module .on('blur' + eventNamespace, module.event.blur) ; } } $menu .on('mouseenter' + eventNamespace, selector.item, module.event.item.mouseenter) .on('mouseleave' + eventNamespace, selector.item, module.event.item.mouseleave) .on('click' + eventNamespace, selector.item, module.event.item.click) ; }, intent: function() { module.verbose('Binding hide intent event to document'); if(hasTouch) { $document .on('touchstart' + elementNamespace, module.event.test.touch) .on('touchmove' + elementNamespace, module.event.test.touch) ; } $document .on('click' + elementNamespace, module.event.test.hide) ; } }, unbind: { intent: function() { module.verbose('Removing hide intent event from document'); if(hasTouch) { $document .off('touchstart' + elementNamespace) .off('touchmove' + elementNamespace) ; } $document .off('click' + elementNamespace) ; } }, filter: function(query) { var searchTerm = (query !== undefined) ? query : module.get.query(), afterFiltered = function() { if(module.is.multiple()) { module.filterActive(); } module.select.firstUnfiltered(); if( module.has.allResultsFiltered() ) { if( settings.onNoResults.call(element, searchTerm) ) { if(settings.allowAdditions) { if(settings.hideAdditions) { module.verbose('User addition with no menu, setting empty style'); module.set.empty(); module.hideMenu(); } } else { module.verbose('All items filtered, showing message', searchTerm); module.add.message(message.noResults); } } else { module.verbose('All items filtered, hiding dropdown', searchTerm); module.hideMenu(); } } else { module.remove.empty(); module.remove.message(); } if(settings.allowAdditions) { module.add.userSuggestion(query); } if(module.is.searchSelection() && module.can.show() && module.is.focusedOnSearch() ) { module.show(); } } ; if(settings.useLabels && module.has.maxSelections()) { return; } if(settings.apiSettings) { if( module.can.useAPI() ) { module.queryRemote(searchTerm, function() { if(settings.filterRemoteData) { module.filterItems(searchTerm); } afterFiltered(); }); } else { module.error(error.noAPI); } } else { module.filterItems(searchTerm); afterFiltered(); } }, queryRemote: function(query, callback) { var apiSettings = { errorDuration : false, cache : 'local', throttle : settings.throttle, urlData : { query: query }, onError: function() { module.add.message(message.serverError); callback(); }, onFailure: function() { module.add.message(message.serverError); callback(); }, onSuccess : function(response) { module.remove.message(); module.setup.menu({ values: response[fields.remoteValues] }); callback(); } } ; if( !$module.api('get request') ) { module.setup.api(); } apiSettings = $.extend(true, {}, apiSettings, settings.apiSettings); $module .api('setting', apiSettings) .api('query') ; }, filterItems: function(query) { var searchTerm = (query !== undefined) ? query : module.get.query(), results = null, escapedTerm = module.escape.string(searchTerm), beginsWithRegExp = new RegExp('^' + escapedTerm, 'igm') ; // avoid loop if we're matching nothing if( module.has.query() ) { results = []; module.verbose('Searching for matching values', searchTerm); $item .each(function(){ var $choice = $(this), text, value ; if(settings.match == 'both' || settings.match == 'text') { text = String(module.get.choiceText($choice, false)); if(text.search(beginsWithRegExp) !== -1) { results.push(this); return true; } else if (settings.fullTextSearch === 'exact' && module.exactSearch(searchTerm, text)) { results.push(this); return true; } else if (settings.fullTextSearch === true && module.fuzzySearch(searchTerm, text)) { results.push(this); return true; } } if(settings.match == 'both' || settings.match == 'value') { value = String(module.get.choiceValue($choice, text)); if(value.search(beginsWithRegExp) !== -1) { results.push(this); return true; } else if (settings.fullTextSearch === 'exact' && module.exactSearch(searchTerm, value)) { results.push(this); return true; } else if (settings.fullTextSearch === true && module.fuzzySearch(searchTerm, value)) { results.push(this); return true; } } }) ; } module.debug('Showing only matched items', searchTerm); module.remove.filteredItem(); if(results) { $item .not(results) .addClass(className.filtered) ; } }, fuzzySearch: function(query, term) { var termLength = term.length, queryLength = query.length ; query = query.toLowerCase(); term = term.toLowerCase(); if(queryLength > termLength) { return false; } if(queryLength === termLength) { return (query === term); } search: for (var characterIndex = 0, nextCharacterIndex = 0; characterIndex < queryLength; characterIndex++) { var queryCharacter = query.charCodeAt(characterIndex) ; while(nextCharacterIndex < termLength) { if(term.charCodeAt(nextCharacterIndex++) === queryCharacter) { continue search; } } return false; } return true; }, exactSearch: function (query, term) { query = query.toLowerCase(); term = term.toLowerCase(); if(term.indexOf(query) > -1) { return true; } return false; }, filterActive: function() { if(settings.useLabels) { $item.filter('.' + className.active) .addClass(className.filtered) ; } }, focusSearch: function(skipHandler) { if( module.has.search() && !module.is.focusedOnSearch() ) { if(skipHandler) { $module.off('focus' + eventNamespace, selector.search); $search.focus(); $module.on('focus' + eventNamespace, selector.search, module.event.search.focus); } else { $search.focus(); } } }, forceSelection: function() { var $currentlySelected = $item.not(className.filtered).filter('.' + className.selected).eq(0), $activeItem = $item.not(className.filtered).filter('.' + className.active).eq(0), $selectedItem = ($currentlySelected.length > 0) ? $currentlySelected : $activeItem, hasSelected = ($selectedItem.length > 0) ; if(hasSelected && !module.is.multiple()) { module.debug('Forcing partial selection to selected item', $selectedItem); module.event.item.click.call($selectedItem, {}, true); return; } else { if(settings.allowAdditions) { module.set.selected(module.get.query()); module.remove.searchTerm(); } else { module.remove.searchTerm(); } } }, event: { change: function() { if(!internalChange) { module.debug('Input changed, updating selection'); module.set.selected(); } }, focus: function() { if(settings.showOnFocus && !activated && module.is.hidden() && !pageLostFocus) { module.show(); } }, blur: function(event) { pageLostFocus = (document.activeElement === this); if(!activated && !pageLostFocus) { module.remove.activeLabel(); module.hide(); } }, mousedown: function() { if(module.is.searchSelection()) { // prevent menu hiding on immediate re-focus willRefocus = true; } else { // prevents focus callback from occurring on mousedown activated = true; } }, mouseup: function() { if(module.is.searchSelection()) { // prevent menu hiding on immediate re-focus willRefocus = false; } else { activated = false; } }, click: function(event) { var $target = $(event.target) ; // focus search if($target.is($module)) { if(!module.is.focusedOnSearch()) { module.focusSearch(); } else { module.show(); } } }, search: { focus: function() { activated = true; if(module.is.multiple()) { module.remove.activeLabel(); } if(settings.showOnFocus) { module.search(); } }, blur: function(event) { pageLostFocus = (document.activeElement === this); if(!willRefocus) { if(!itemActivated && !pageLostFocus) { if(settings.forceSelection) { module.forceSelection(); } module.hide(); } } willRefocus = false; } }, icon: { click: function(event) { module.toggle(); } }, text: { focus: function(event) { activated = true; module.focusSearch(); } }, input: function(event) { if(module.is.multiple() || module.is.searchSelection()) { module.set.filtered(); } clearTimeout(module.timer); module.timer = setTimeout(module.search, settings.delay.search); }, label: { click: function(event) { var $label = $(this), $labels = $module.find(selector.label), $activeLabels = $labels.filter('.' + className.active), $nextActive = $label.nextAll('.' + className.active), $prevActive = $label.prevAll('.' + className.active), $range = ($nextActive.length > 0) ? $label.nextUntil($nextActive).add($activeLabels).add($label) : $label.prevUntil($prevActive).add($activeLabels).add($label) ; if(event.shiftKey) { $activeLabels.removeClass(className.active); $range.addClass(className.active); } else if(event.ctrlKey) { $label.toggleClass(className.active); } else { $activeLabels.removeClass(className.active); $label.addClass(className.active); } settings.onLabelSelect.apply(this, $labels.filter('.' + className.active)); } }, remove: { click: function() { var $label = $(this).parent() ; if( $label.hasClass(className.active) ) { // remove all selected labels module.remove.activeLabels(); } else { // remove this label only module.remove.activeLabels( $label ); } } }, test: { toggle: function(event) { var toggleBehavior = (module.is.multiple()) ? module.show : module.toggle ; if(module.is.bubbledLabelClick(event) || module.is.bubbledIconClick(event)) { return; } if( module.determine.eventOnElement(event, toggleBehavior) ) { event.preventDefault(); } }, touch: function(event) { module.determine.eventOnElement(event, function() { if(event.type == 'touchstart') { module.timer = setTimeout(function() { module.hide(); }, settings.delay.touch); } else if(event.type == 'touchmove') { clearTimeout(module.timer); } }); event.stopPropagation(); }, hide: function(event) { module.determine.eventInModule(event, module.hide); } }, select: { mutation: function(mutations) { module.debug(' removing selected option', removedValue); newValue = module.remove.arrayValue(removedValue, values); module.remove.optionValue(removedValue); } else { module.verbose('Removing from delimited values', removedValue); newValue = module.remove.arrayValue(removedValue, values); newValue = newValue.join(settings.delimiter); } if(settings.fireOnInit === false && module.is.initialLoad()) { module.verbose('No callback on initial load', settings.onRemove); } else { settings.onRemove.call(element, removedValue, removedText, $removedItem); } module.set.value(newValue, removedText, $removedItem); module.check.maxSelections(); }, arrayValue: function(removedValue, values) { if( !$.isArray(values) ) { values = [values]; } values = $.grep(values, function(value){ return (removedValue != value); }); module.verbose('Removed value from delimited string', removedValue, values); return values; }, label: function(value, shouldAnimate) { var $labels = $module.find(selector.label), $removedLabel = $labels.filter('[data-' + metadata.value + '="' + module.escape.string(value) +'"]') ; module.verbose('Removing label', $removedLabel); $removedLabel.remove(); }, activeLabels: function($activeLabels) { $activeLabels = $activeLabels || $module.find(selector.label).filter('.' + className.active); module.verbose('Removing active label selections', $activeLabels); module.remove.labels($activeLabels); }, labels: function($labels) { $labels = $labels || $module.find(selector.label); module.verbose('Removing labels', $labels); $labels .each(function(){ var $label = $(this), value = $label.data(metadata.value), stringValue = (value !== undefined) ? String(value) : value, isUserValue = module.is.userValue(stringValue) ; if(settings.onLabelRemove.call($label, value) === false) { module.debug('Label remove callback cancelled removal'); return; } module.remove.message(); if(isUserValue) { module.remove.value(stringValue); module.remove.label(stringValue); } else { // selected will also remove label module.remove.selected(stringValue); } }) ; }, tabbable: function() { if( module.is.searchSelection() ) { module.debug('Searchable dropdown initialized'); $search .removeAttr('tabindex') ; $menu .removeAttr('tabindex') ; } else { module.debug('Simple selection dropdown initialized'); $module .removeAttr('tabindex') ; $menu .removeAttr('tabindex') ; } } }, has: { menuSearch: function() { return (module.has.search() && $search.closest($menu).length > 0); }, search: function() { return ($search.length > 0); }, sizer: function() { return ($sizer.length > 0); }, selectInput: function() { return ( $input.is('select') ); }, minCharacters: function(searchTerm) { if(settings.minCharacters) { searchTerm = (searchTerm !== undefined) ? String(searchTerm) : String(module.get.query()) ; return (searchTerm.length >= settings.minCharacters); } return true; }, firstLetter: function($item, letter) { var text, firstLetter ; if(!$item || $item.length === 0 || typeof letter !== 'string') { return false; } text = module.get.choiceText($item, false); letter = letter.toLowerCase(); firstLetter = String(text).charAt(0).toLowerCase(); return (letter == firstLetter); }, input: function() { return ($input.length > 0); }, items: function() { return ($item.length > 0); }, menu: function() { return ($menu.length > 0); }, message: function() { return ($menu.children(selector.message).length !== 0); }, label: function(value) { var escapedValue = module.escape.value(value), $labels = $module.find(selector.label) ; return ($labels.filter('[data-' + metadata.value + '="' + module.escape.string(escapedValue) +'"]').length > 0); }, maxSelections: function() { return (settings.maxSelections && module.get.selectionCount() >= settings.maxSelections); }, allResultsFiltered: function() { var $normalResults = $item.not(selector.addition) ; return ($normalResults.filter(selector.unselectable).length === $normalResults.length); }, userSuggestion: function() { return ($menu.children(selector.addition).length > 0); }, query: function() { return (module.get.query() !== ''); }, value: function(value) { var values = module.get.values(), hasValue = $.isArray(values) ? values && ($.inArray(value, values) !== -1) : (values == value) ; return (hasValue) ? true : false ; } }, is: { active: function() { return $module.hasClass(className.active); }, bubbledLabelClick: function(event) { return $(event.target).is('select, input') && $module.closest('label').length > 0; }, bubbledIconClick: function(event) { return $(event.target).closest($icon).length > 0; }, alreadySetup: function() { return ($module.is('select') && $module.parent(selector.dropdown).length > 0 && $module.prev().length === 0); }, animating: function($subMenu) { return ($subMenu) ? $subMenu.transition && $subMenu.transition('is animating') : $menu.transition && $menu.transition('is animating') ; }, disabled: function() { return $module.hasClass(className.disabled); }, focused: function() { return (document.activeElement === $module[0]); }, focusedOnSearch: function() { return (document.activeElement === $search[0]); }, allFiltered: function() { return( (module.is.multiple() || module.has.search()) && !(settings.hideAdditions == false && module.has.userSuggestion()) && !module.has.message() && module.has.allResultsFiltered() ); }, hidden: function($subMenu) { return !module.is.visible($subMenu); }, initialLoad: function() { return initialLoad; }, onScreen: function($subMenu) { var $currentMenu = $subMenu || $menu, canOpenDownward = true, onScreen = {}, calculations ; $currentMenu.addClass(className.loading); calculations = { context: { scrollTop : $context.scrollTop(), height : $context.outerHeight() }, menu : { offset: $currentMenu.offset(), height: $currentMenu.outerHeight() } }; onScreen = { above : (calculations.context.scrollTop) <= calculations.menu.offset.top - calculations.menu.height, below : (calculations.context.scrollTop + calculations.context.height) >= calculations.menu.offset.top + calculations.menu.height }; if(onScreen.below) { module.verbose('Dropdown can fit in context downward', onScreen); canOpenDownward = true; } else if(!onScreen.below && !onScreen.above) { module.verbose('Dropdown cannot fit in either direction, favoring downward', onScreen); canOpenDownward = true; } else { module.verbose('Dropdown cannot fit below, opening upward', onScreen); canOpenDownward = false; } $currentMenu.removeClass(className.loading); return canOpenDownward; }, inObject: function(needle, object) { var found = false ; $.each(object, function(index, property) { if(property == needle) { found = true; return true; } }); return found; }, multiple: function() { return $module.hasClass(className.multiple); }, remote: function() { return settings.apiSettings && module.can.useAPI(); }, single: function() { return !module.is.multiple(); }, selectMutation: function(mutations) { var selectChanged = false ; $.each(mutations, function(index, mutation) { if(mutation.target && $(mutation.target).is('select')) { selectChanged = true; return true; } }); return selectChanged; }, search: function() { return $module.hasClass(className.search); }, searchSelection: function() { return ( module.has.search() && $search.parent(selector.dropdown).length === 1 ); }, selection: function() { return $module.hasClass(className.selection); }, userValue: function(value) { return ($.inArray(value, module.get.userValues()) !== -1); }, upward: function($menu) { var $element = $menu || $module; return $element.hasClass(className.upward); }, visible: function($subMenu) { return ($subMenu) ? $subMenu.hasClass(className.visible) : $menu.hasClass(className.visible) ; } }, can: { activate: function($item) { if(settings.useLabels) { return true; } if(!module.has.maxSelections()) { return true; } if(module.has.maxSelections() && $item.hasClass(className.active)) { return true; } return false; }, click: function() { return (hasTouch || settings.on == 'click'); }, extendSelect: function() { return settings.allowAdditions || settings.apiSettings; }, show: function() { return !module.is.disabled() && (module.has.items() || module.has.message()); }, useAPI: function() { return $.fn.api !== undefined; } }, animate: { show: function(callback, $subMenu) { var $currentMenu = $subMenu || $menu, start = ($subMenu) ? function() {} : function() { module.hideSubMenus(); module.hideOthers(); module.set.active(); }, transition ; callback = $.isFunction(callback) ? callback : function(){} ; module.verbose('Doing menu show animation', $currentMenu); module.set.direction($subMenu); transition = module.get.transition($subMenu); if( module.is.selection() ) { module.set.scrollPosition(module.get.selectedItem(), true); } if( module.is.hidden($currentMenu) || module.is.animating($currentMenu) ) { if(transition == 'none') { start(); $currentMenu.transition('show'); callback.call(element); } else if($.fn.transition !== undefined && $module.transition('is supported')) { $currentMenu .transition({ animation : transition + ' in', debug : settings.debug, verbose : settings.verbose, duration : settings.duration, queue : true, onStart : start, onComplete : function() { callback.call(element); } }) ; } else { module.error(error.noTransition, transition); } } }, hide: function(callback, $subMenu) { var $currentMenu = $subMenu || $menu, duration = ($subMenu) ? (settings.duration * 0.9) : settings.duration, start = ($subMenu) ? function() {} : function() { if( module.can.click() ) { module.unbind.intent(); } module.remove.active(); }, transition = module.get.transition($subMenu) ; callback = $.isFunction(callback) ? callback : function(){} ; if( module.is.visible($currentMenu) || module.is.animating($currentMenu) ) { module.verbose('Doing menu hide animation', $currentMenu); if(transition == 'none') { start(); $currentMenu.transition('hide'); callback.call(element); } else if($.fn.transition !== undefined && $module.transition('is supported')) { $currentMenu .transition({ animation : transition + ' out', duration : settings.duration, debug : settings.debug, verbose : settings.verbose, queue : true, onStart : start, onComplete : function() { if(settings.direction == 'auto') { module.remove.upward($subMenu); } callback.call(element); } }) ; } else { module.error(error.transition); } } } }, hideAndClear: function() { module.remove.searchTerm(); if( module.has.maxSelections() ) { return; } if(module.has.search()) { module.hide(function() { module.remove.filteredItem(); }); } else { module.hide(); } }, 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); } }, escape: { value: function(value) { var multipleValues = $.isArray(value), stringValue = (typeof value === 'string'), isUnparsable = (!stringValue && !multipleValues), hasQuotes = (stringValue && value.search(regExp.quote) !== -1), values = [] ; if(isUnparsable || !hasQuotes) { return value; } module.debug('Encoding quote values for use in select', value); if(multipleValues) { $.each(value, function(index, value){ values.push(value.replace(regExp.quote, '"')); }); return values; } return value.replace(regExp.quote, '"'); }, string: function(text) { text = String(text); return text.replace(regExp.escape, '\\$&'); } }, setting: function(name, value) { module.debug('Changing setting', name, value); if( $.isPlainObject(name) ) { $.extend(true, settings, name); } else if(value !== undefined) { if($.isPlainObject(settings[name])) { $.extend(true, settings[name], value); } else { 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.silent && 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.silent && 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() { if(!settings.silent) { 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({ 'Name' : message[0], 'Arguments' : [].slice.call(message, 1) || '', 'Element' : element, 'Execution Time' : executionTime }); } clearTimeout(module.performance.timer); module.performance.timer = setTimeout(module.performance.display, 500); }, 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) { instance.invoke('destroy'); } module.initialize(); } }) ; return (returnedValue !== undefined) ? returnedValue : $allModules ; }; $.fn.dropdown.settings = { silent : false, debug : false, verbose : false, performance : true, on : 'click', // what event should show menu action on item selection action : 'activate', // action on item selection (nothing, activate, select, combo, hide, function(){}) apiSettings : false, selectOnKeydown : true, // Whether selection should occur automatically when keyboard shortcuts used minCharacters : 0, // Minimum characters required to trigger API call filterRemoteData : false, // Whether API results should be filtered after being returned for query term saveRemoteData : true, // Whether remote name/value pairs should be stored in sessionStorage to allow remote data to be restored on page refresh throttle : 200, // How long to wait after last user input to search remotely context : window, // Context to use when determining if on screen direction : 'auto', // Whether dropdown should always open in one direction keepOnScreen : true, // Whether dropdown should check whether it is on screen before showing match : 'both', // what to match against with search selection (both, text, or label) fullTextSearch : false, // search anywhere in value (set to 'exact' to require exact matches) placeholder : 'auto', // whether to convert blank the values will be delimited with this character showOnFocus : true, // show menu on focus allowReselection : false, // whether current value should trigger callbacks when reselected allowTab : true, // add tabindex to element allowCategorySelection : false, // allow elements with sub-menus to be selected fireOnInit : false, // Whether callbacks should fire when initializing dropdown values transition : 'auto', // auto transition will slide down or up based on direction duration : 200, // duration of transition glyphWidth : 1.037, // widest glyph width in em (W is 1.037 em) used to calculate multiselect input width // label settings on multi-select label: { transition : 'scale', duration : 200, variation : false }, // delay before event delay : { hide : 300, show : 200, search : 20, touch : 50 }, /* Callbacks */ onChange : function(value, text, $selected){}, onAdd : function(value, text, $selected){}, onRemove : function(value, text, $selected){}, onLabelSelect : function($selectedLabels){}, onLabelCreate : function(value, text) { return $(this); }, onLabelRemove : function(value) { return true; }, onNoResults : function(searchTerm) { return true; }, onShow : function(){}, onHide : function(){}, /* Component */ name : 'Dropdown', namespace : 'dropdown', message: { addResult : 'Add {term}', count : '{count} selected', maxSelections : 'Max {maxCount} selections', noResults : 'No results found.', serverError : 'There was an error contacting the server' }, error : { action : 'You called a dropdown action that was not defined', alreadySetup : 'Once a select has been initialized behaviors must be called on the created ui dropdown', labels : 'Allowing user additions currently requires the use of labels.', missingMultiple : '