public/assets/semantic-ui/dropdown-e6bc8f641617bd9b0438839102dd0a4fe13785fc8e33b50207d25c1ca515a630.js
/*
* # Semantic - Dropdown
* http://github.com/semantic-org/semantic-ui/
*
*
* Copyright 2014 Contributor
* Released under the MIT license
* http://opensource.org/licenses/MIT
*
*/
;(function ( $, window, document, undefined ) {
"use strict";
$.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() {
var
settings = ( $.isPlainObject(parameters) )
? $.extend(true, {}, $.fn.dropdown.settings, parameters)
: $.extend({}, $.fn.dropdown.settings),
className = settings.className,
metadata = settings.metadata,
namespace = settings.namespace,
selector = settings.selector,
error = settings.error,
eventNamespace = '.' + namespace,
moduleNamespace = 'module-' + namespace,
$module = $(this),
$text = $module.find(selector.text),
$search = $module.find(selector.search),
$input = $module.find(selector.input),
$combo = ($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,
element = this,
instance = $module.data(moduleNamespace),
elementNamespace,
id,
observer,
module
;
module = {
initialize: function() {
module.debug('Initializing dropdown', settings);
if( module.is.alreadySetup() ) {
module.error(error.alreadySetup);
}
else {
module.setup.layout();
}
module.save.defaults();
module.set.selected();
module.create.id();
if(hasTouch) {
module.bind.touchEvents();
}
module.bind.mouseEvents();
module.bind.keyboardEvents();
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 for', $module);
module.remove.tabbable();
$module
.off(eventNamespace)
.removeData(moduleNamespace)
;
$menu
.off(eventNamespace)
;
$document
.off(elementNamespace)
;
},
observeChanges: function() {
if('MutationObserver' in window) {
observer = new MutationObserver(function(mutations) {
if( module.is.selectMutation(mutations) ) {
module.debug('<select> modified, recreating menu');
module.setup.select();
}
else {
module.debug('DOM tree modified, updating selector cache');
module.refresh();
}
});
observer.observe(element, {
childList : true,
subtree : true
});
module.debug('Setting up mutation observer', observer);
}
},
create: {
id: function() {
module.verbose('Creating unique id for element');
id = module.get.uniqueID();
elementNamespace = '.' + id;
}
},
search: function() {
var
query
;
query = $search.val();
module.verbose('Searching for query', query);
module.filter(query);
if(module.is.searchSelection() && module.can.show() ) {
module.show();
}
},
setup: {
layout: function() {
if( $module.is('select') ) {
module.setup.select();
}
if( module.is.search() && !module.is.searchable() ) {
$search = $('<input />')
.addClass(className.search)
.insertBefore($text)
;
}
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);
$menu = $module.children(selector.menu);
if($menu.length === 0) {
$menu = $('<div />')
.addClass(className.menu)
.appendTo($module)
;
}
$menu.html( settings.templates.menu( selectValues ));
}
else {
module.debug('Creating entire dropdown from select');
$module = $('<div />')
.attr('class', $input.attr('class') )
.addClass(className.selection)
.addClass(className.dropdown)
.html( settings.templates.dropdown(selectValues) )
.insertBefore($input)
;
$input
.removeAttr('class')
.prependTo($module)
;
}
module.refresh();
}
},
refresh: function() {
module.verbose('Refreshing selector cache');
$text = $module.find(selector.text);
$search = $module.find(selector.search);
$input = $module.find(selector.input);
$combo = ($module.prev().find(selector.text).length > 0)
? $module.prev().find(selector.text)
: $module.prev()
;
$menu = $module.children(selector.menu);
$item = $menu.find(selector.item);
},
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.is.searchSelection() && module.is.allFiltered() ) {
return;
}
if( module.can.show() && !module.is.active() ) {
module.debug('Showing dropdown');
module.animate.show(function() {
if( module.can.click() ) {
module.bind.intent();
}
module.set.visible();
callback.call(element);
});
settings.onShow.call(element);
}
},
hide: function(callback) {
callback = $.isFunction(callback)
? callback
: function(){}
;
if( module.is.active() ) {
module.debug('Hiding dropdown');
module.animate.hide(function() {
module.remove.visible();
callback.call(element);
});
settings.onHide.call(element);
}
},
hideOthers: function() {
module.verbose('Finding other dropdowns to hide');
$allModules
.not($module)
.has(selector.menu + ':visible:not(.' + className.animating + ')')
.dropdown('hide')
;
},
hideSubMenus: function() {
var
$subMenus = $menu.find(selector.menu)
;
$subMenus.transition('hide');
},
bind: {
keyboardEvents: function() {
module.debug('Binding keyboard events');
$module
.on('keydown' + eventNamespace, module.event.keydown)
;
if( module.is.searchable() ) {
$module
.on(module.get.inputEvent(), selector.search, module.event.input)
;
}
},
touchEvents: function() {
module.debug('Touch device detected binding additional touch events');
if( module.is.searchSelection() ) {
// do nothing special yet
}
else {
$module
.on('touchstart' + eventNamespace, module.event.test.toggle)
;
}
$menu
.on('touchstart' + eventNamespace, selector.item, module.event.item.mouseenter)
;
},
mouseEvents: function() {
module.verbose('Mouse detected binding mouse events');
if( module.is.searchSelection() ) {
$module
.on('mousedown' + eventNamespace, selector.menu, module.event.menu.activate)
.on('mouseup' + eventNamespace, selector.menu, module.event.menu.deactivate)
.on('click' + eventNamespace, selector.search, module.show)
.on('focus' + eventNamespace, selector.search, module.event.searchFocus)
.on('blur' + eventNamespace, selector.search, module.event.searchBlur)
.on('click' + eventNamespace, selector.text, module.event.searchTextFocus)
;
}
else {
if(settings.on == 'click') {
$module
.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)
.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(searchTerm) {
var
$results = $(),
escapedTerm = module.escape.regExp(searchTerm),
exactRegExp = new RegExp('^' + escapedTerm, 'igm'),
fullTextRegExp = new RegExp(escapedTerm, 'ig'),
allItemsFiltered
;
module.verbose('Searching for matching values');
$item
.each(function(){
var
$choice = $(this),
text = String(module.get.choiceText($choice, false)),
value = String(module.get.choiceValue($choice, text))
;
if( text.match(exactRegExp) || value.match(exactRegExp) ) {
$results = $results.add($choice);
}
else if(settings.fullTextSearch) {
if( text.match(fullTextRegExp) || value.match(fullTextRegExp) ) {
$results = $results.add($choice);
}
}
})
;
module.debug('Setting filter', searchTerm);
module.remove.filteredItem();
$item
.not($results)
.addClass(className.filtered)
;
module.verbose('Selecting first non-filtered element');
module.remove.selectedItem();
$item
.not('.' + className.filtered)
.eq(0)
.addClass(className.selected)
;
if( module.is.allFiltered() ) {
module.debug('All items filtered, hiding dropdown', searchTerm);
if(module.is.searchSelection()) {
module.hide();
}
settings.onNoResults.call(element, searchTerm);
}
},
focusSearch: function() {
if( module.is.search() ) {
$search
.focus()
;
}
},
event: {
// prevents focus callback from occuring on mousedown
mousedown: function() {
activated = true;
},
mouseup: function() {
activated = false;
},
focus: function() {
if(!activated && module.is.hidden()) {
module.show();
}
},
blur: function(event) {
var
pageLostFocus = (document.activeElement === this)
;
if(!activated && !pageLostFocus) {
module.hide();
}
},
searchFocus: function() {
activated = true;
module.show();
},
searchBlur: function(event) {
var
pageLostFocus = (document.activeElement === this)
;
if(!itemActivated && !pageLostFocus) {
module.hide();
}
},
searchTextFocus: function(event) {
activated = true;
$search.focus();
},
input: function(event) {
if(module.is.searchSelection()) {
module.set.filtered();
}
clearTimeout(module.timer);
module.timer = setTimeout(module.search, settings.delay.search);
},
keydown: function(event) {
var
$currentlySelected = $item.not(className.filtered).filter('.' + className.selected).eq(0),
$activeItem = $menu.children('.' + className.active).eq(0),
$selectedItem = ($currentlySelected.length > 0)
? $currentlySelected
: $activeItem,
$visibleItems = ($selectedItem.length > 0)
? $selectedItem.siblings(':not(.' + className.filtered +')').andSelf()
: $menu.children(':not(.' + className.filtered +')'),
$subMenu = $selectedItem.children(selector.menu),
$parentMenu = $selectedItem.closest(selector.menu),
isSubMenuItem = $parentMenu[0] !== $menu[0],
inVisibleMenu = $parentMenu.is(':visible'),
pressedKey = event.which,
keys = {
enter : 13,
escape : 27,
leftArrow : 37,
upArrow : 38,
rightArrow : 39,
downArrow : 40
},
hasSubMenu = ($subMenu.length> 0),
hasSelectedItem = ($selectedItem.length > 0),
lastVisibleIndex = ($visibleItems.size() - 1),
$nextItem,
newIndex
;
// visible menu keyboard shortcuts
if(module.is.visible()) {
// enter (select or sub-menu)
if(pressedKey == keys.enter && hasSelectedItem) {
if(hasSubMenu && !settings.allowCategorySelection) {
module.verbose('Pressed enter on unselectable category, opening sub menu');
pressedKey = keys.rightArrow;
}
else {
module.verbose('Enter key pressed, choosing selected item');
module.event.item.click.call($selectedItem, event);
}
}
// left arrow (hide sub-menu)
if(pressedKey == keys.leftArrow) {
if(isSubMenuItem) {
module.verbose('Left key pressed, closing sub-menu');
module.animate.hide(false, $parentMenu);
$selectedItem
.removeClass(className.selected)
;
$parentMenu
.closest(selector.item)
.addClass(className.selected)
;
}
event.preventDefault();
}
// right arrow (show sub-menu)
if(pressedKey == keys.rightArrow) {
if(hasSubMenu) {
module.verbose('Right key pressed, opening sub-menu');
module.animate.show(false, $subMenu);
$selectedItem
.removeClass(className.selected)
;
$subMenu
.find(selector.item).eq(0)
.addClass(className.selected)
;
}
event.preventDefault();
}
// up arrow (traverse menu up)
if(pressedKey == keys.upArrow) {
$nextItem = (hasSelectedItem && inVisibleMenu)
? $selectedItem.prevAll(selector.item + ':not(.' + className.filtered + ')').eq(0)
: $item.eq(0)
;
if($visibleItems.index( $nextItem ) < 0) {
module.verbose('Up key pressed but reached top of current menu');
return;
}
else {
module.verbose('Up key pressed, changing active item');
$selectedItem
.removeClass(className.selected)
;
$nextItem
.addClass(className.selected)
;
module.set.scrollPosition($nextItem);
}
event.preventDefault();
}
// down arrow (traverse menu down)
if(pressedKey == keys.downArrow) {
$nextItem = (hasSelectedItem && inVisibleMenu)
? $nextItem = $selectedItem.nextAll(selector.item + ':not(.' + className.filtered + ')').eq(0)
: $item.eq(0)
;
if($nextItem.length === 0) {
module.verbose('Down key pressed but reached bottom of current menu');
return;
}
else {
module.verbose('Down key pressed, changing active item');
$item
.removeClass(className.selected)
;
$nextItem
.addClass(className.selected)
;
module.set.scrollPosition($nextItem);
}
event.preventDefault();
}
}
else {
// enter (open menu)
if(pressedKey == keys.enter) {
module.verbose('Enter key pressed, showing dropdown');
module.show();
}
// escape (close menu)
if(pressedKey == keys.escape) {
module.verbose('Escape key pressed, closing dropdown');
module.hide();
}
// down arrow (open menu)
if(pressedKey == keys.downArrow) {
module.verbose('Down key pressed, showing dropdown');
module.show();
}
}
},
test: {
toggle: function(event) {
if( module.determine.eventInMenu(event, module.toggle) ) {
event.preventDefault();
}
},
touch: function(event) {
module.determine.eventInMenu(event, function() {
if(event.type == 'touchstart') {
module.timer = setTimeout(module.hide, settings.delay.touch);
}
else if(event.type == 'touchmove') {
clearTimeout(module.timer);
}
});
event.stopPropagation();
},
hide: function(event) {
module.determine.eventInModule(event, module.hide);
}
},
menu: {
activate: function() {
itemActivated = true;
},
deactivate: function() {
itemActivated = false;
}
},
item: {
mouseenter: function(event) {
var
$subMenu = $(this).children(selector.menu),
$otherMenus = $(this).siblings(selector.item).children(selector.menu)
;
if( $subMenu.length > 0 ) {
clearTimeout(module.itemTimer);
module.itemTimer = setTimeout(function() {
module.verbose('Showing sub-menu', $subMenu);
$.each($otherMenus, function() {
module.animate.hide(false, $(this));
});
module.animate.show(false, $subMenu);
}, settings.delay.show);
event.preventDefault();
}
},
mouseleave: function(event) {
var
$subMenu = $(this).children(selector.menu)
;
if($subMenu.length > 0) {
clearTimeout(module.itemTimer);
module.itemTimer = setTimeout(function() {
module.verbose('Hiding sub-menu', $subMenu);
module.animate.hide(false, $subMenu);
}, settings.delay.hide);
}
},
click: function (event) {
var
$choice = $(this),
$target = $(event.target),
$subMenu = $choice.find(selector.menu),
text = module.get.choiceText($choice),
value = module.get.choiceValue($choice, text),
callback = function() {
module.remove.searchTerm();
module.determine.selectAction(text, value);
},
hasSubMenu = ($subMenu.length > 0),
isBubbledEvent = ($subMenu.find($target).length > 0)
;
if(!isBubbledEvent && (!hasSubMenu || settings.allowCategorySelection)) {
callback();
}
}
},
resetStyle: function() {
$(this).removeAttr('style');
}
},
determine: {
selectAction: function(text, value) {
module.verbose('Determining action', settings.action);
if( $.isFunction( module.action[settings.action] ) ) {
module.verbose('Triggering preset action', settings.action, text, value);
module.action[ settings.action ](text, value);
}
else if( $.isFunction(settings.action) ) {
module.verbose('Triggering user action', settings.action, text, value);
settings.action(text, value);
}
else {
module.error(error.action, settings.action);
}
},
eventInModule: function(event, callback) {
callback = $.isFunction(callback)
? callback
: function(){}
;
if( $(event.target).closest($module).length === 0 ) {
module.verbose('Triggering event', callback);
callback();
return true;
}
else {
module.verbose('Event occurred in dropdown, canceling callback');
return false;
}
},
eventInMenu: function(event, callback) {
callback = $.isFunction(callback)
? callback
: function(){}
;
if( $(event.target).closest($menu).length === 0 ) {
module.verbose('Triggering event', callback);
callback();
return true;
}
else {
module.verbose('Event occurred in dropdown menu, canceling callback');
return false;
}
}
},
action: {
nothing: function() {},
activate: function(text, value) {
value = (value !== undefined)
? value
: text
;
module.set.selected(value);
module.hide(function() {
module.remove.filteredItem();
});
},
select: function(text, value) {
value = (value !== undefined)
? value
: text
;
module.set.selected(value);
module.hide(function() {
module.remove.filteredItem();
});
},
combo: function(text, value) {
value = (value !== undefined)
? value
: text
;
module.set.selected(value);
module.hide(function() {
module.remove.filteredItem();
});
},
hide: function() {
module.hide(function() {
module.remove.filteredItem();
});
}
},
get: {
text: function() {
return $text.text();
},
value: function() {
return ($input.length > 0)
? $input.val()
: $module.data(metadata.value)
;
},
choiceText: function($choice, preserveHTML) {
preserveHTML = (preserveHTML !== undefined)
? preserveHTML
: settings.preserveHTML
;
if($choice !== undefined) {
if($choice.find(selector.menu).length > 0) {
module.verbose('Retreiving text of element with sub-menu');
$choice = $choice.clone();
$choice.find(selector.menu).remove();
$choice.find(selector.menuIcon).remove();
}
return ($choice.data(metadata.text) !== undefined)
? $choice.data(metadata.text)
: (preserveHTML)
? $choice.html().trim()
: $choice.text().trim()
;
}
},
choiceValue: function($choice, choiceText) {
choiceText = choiceText || module.get.choiceText($choice);
return ($choice.data(metadata.value) !== undefined)
? $choice.data(metadata.value)
: (typeof choiceText === 'string')
? choiceText.toLowerCase().trim()
: choiceText.trim()
;
},
inputEvent: function() {
var
input = $search[0]
;
if(input) {
return (input.oninput !== undefined)
? 'input'
: (input.onpropertychange !== undefined)
? 'propertychange'
: 'keyup'
;
}
return false;
},
selectValues: function() {
var
select = {}
;
select.values = (settings.sortSelect)
? {} // properties will be sorted in object when re-accessed
: [] // properties will keep original order in array
;
$module
.find('option')
.each(function() {
var
name = $(this).html(),
value = ( $(this).attr('value') !== undefined )
? $(this).attr('value')
: name
;
if(value === '') {
select.placeholder = name;
}
else {
if(settings.sortSelect) {
select.values[value] = {
name : name,
value : value
};
}
else {
select.values.push({
name: name,
value: value
});
}
}
})
;
if(settings.sortSelect) {
module.debug('Retrieved and sorted values from select', select);
}
else {
module.debug('Retreived values from select', select);
}
return select;
},
activeItem: function() {
return $item.filter('.' + className.active);
},
item: function(value, strict) {
var
$selectedItem = false
;
value = (value !== undefined)
? value
: ( module.get.value() !== undefined)
? module.get.value()
: module.get.text()
;
strict = (value === '' || value === 0)
? true
: strict || false
;
if(value !== undefined) {
$item
.each(function() {
var
$choice = $(this),
optionText = module.get.choiceText($choice),
optionValue = module.get.choiceValue($choice, optionText)
;
if(strict) {
module.verbose('Ambiguous dropdown value using strict type check', $choice, value);
if( optionValue === value ) {
$selectedItem = $(this);
}
else if( !$selectedItem && optionText === value ) {
$selectedItem = $(this);
}
}
else {
if( optionValue == value ) {
module.verbose('Found select item by value', optionValue, value);
$selectedItem = $(this);
}
else if( !$selectedItem && optionText == value ) {
module.verbose('Found select item by text', optionText, value);
$selectedItem = $(this);
}
}
})
;
}
else {
value = module.get.text();
}
return $selectedItem || false;
},
uniqueID: function() {
return (Math.random().toString(16) + '000000000').substr(2,8);
}
},
restore: {
defaults: function() {
module.restore.defaultText();
module.restore.defaultValue();
},
defaultText: function() {
var
defaultText = $module.data(metadata.defaultText)
;
module.debug('Restoring default text', defaultText);
module.set.text(defaultText);
$text.addClass(className.placeholder);
},
defaultValue: function() {
var
defaultValue = $module.data(metadata.defaultValue)
;
if(defaultValue !== undefined) {
module.debug('Restoring default value', defaultValue);
if(defaultValue.length) {
module.set.selected(defaultValue);
}
else {
module.remove.activeItem();
module.remove.selectedItem();
}
}
}
},
save: {
defaults: function() {
module.save.defaultText();
module.save.placeholderText();
module.save.defaultValue();
},
defaultValue: function() {
$module.data(metadata.defaultValue, module.get.value() );
},
defaultText: function() {
$module.data(metadata.defaultText, $text.text() );
},
placeholderText: function() {
if($text.hasClass(className.placeholder)) {
$module.data(metadata.placeholderText, $text.text());
}
}
},
clear: function() {
var
placeholderText = $module.data(metadata.placeholderText)
;
module.set.text(placeholderText);
module.set.value('');
module.remove.activeItem();
module.remove.selectedItem();
$text.addClass(className.placeholder);
},
set: {
filtered: function() {
var
searchValue = $search.val(),
hasSearchValue = (typeof searchValue === 'string' && searchValue.length > 0)
;
if(hasSearchValue) {
$text.addClass(className.filtered);
}
else {
$text.removeClass(className.filtered);
}
},
tabbable: function() {
if( module.is.searchable() ) {
module.debug('Searchable dropdown initialized');
$search
.val('')
.attr('tabindex', 0)
;
$menu
.attr('tabindex', '-1')
;
}
else {
module.debug('Simple selection dropdown initialized');
if(!$module.attr('tabindex') ) {
$module
.attr('tabindex', 0)
;
$menu
.attr('tabindex', '-1')
;
}
}
},
scrollPosition: function($item, forceScroll) {
var
edgeTolerance = 5,
hasActive,
offset,
itemHeight,
itemOffset,
menuOffset,
menuScroll,
menuHeight,
abovePage,
belowPage
;
$item = $item || module.get.activeItem();
hasActive = ($item && $item.length > 0);
forceScroll = (forceScroll !== undefined)
? forceScroll
: false
;
if($item && hasActive) {
if(!$menu.hasClass(className.visible)) {
$menu.addClass(className.loading);
}
menuHeight = $menu.height();
itemHeight = $item.height();
menuScroll = $menu.scrollTop();
menuOffset = $menu.offset().top;
itemOffset = $item.offset().top;
offset = menuScroll - menuOffset + itemOffset;
belowPage = menuScroll + menuHeight < (offset + edgeTolerance);
abovePage = ((offset - edgeTolerance) < menuScroll);
module.debug('Scrolling to active item', offset);
if(abovePage || belowPage || forceScroll) {
$menu
.scrollTop(offset)
.removeClass(className.loading)
;
}
}
},
text: function(text) {
if(settings.action == 'combo') {
module.debug('Changing combo button text', text, $combo);
if(settings.preserveHTML) {
$combo.html(text);
}
else {
$combo.text(text);
}
}
else if(settings.action !== 'select') {
module.debug('Changing text', text, $text);
$text
.removeClass(className.filtered)
.removeClass(className.placeholder)
;
if(settings.preserveHTML) {
$text.html(text);
}
else {
$text.text(text);
}
}
},
value: function(value) {
module.debug('Adding selected value to hidden input', value, $input);
if($input.length > 0) {
$input
.val(value)
.trigger('change')
;
}
else {
$module.data(metadata.value, value);
}
},
active: function() {
$module
.addClass(className.active)
;
},
visible: function() {
$module.addClass(className.visible);
},
selected: function(value) {
var
$selectedItem = module.get.item(value),
selectedText,
selectedValue
;
if($selectedItem) {
module.debug('Setting selected menu item to', $selectedItem);
module.remove.activeItem();
module.remove.selectedItem();
$selectedItem
.addClass(className.active)
.addClass(className.selected)
;
selectedText = module.get.choiceText($selectedItem);
selectedValue = module.get.choiceValue($selectedItem, selectedText);
module.set.text(selectedText);
module.set.value(selectedValue);
settings.onChange.call(element, value, selectedText, $selectedItem);
}
}
},
remove: {
active: function() {
$module.removeClass(className.active);
},
visible: function() {
$module.removeClass(className.visible);
},
activeItem: function() {
$item.removeClass(className.active);
},
filteredItem: function() {
$item.removeClass(className.filtered);
},
searchTerm: function() {
$search.val('');
},
selectedItem: function() {
$item.removeClass(className.selected);
},
tabbable: function() {
if( module.is.searchable() ) {
module.debug('Searchable dropdown initialized');
$search
.attr('tabindex', '-1')
;
$menu
.attr('tabindex', '-1')
;
}
else {
module.debug('Simple selection dropdown initialized');
$module
.attr('tabindex', '-1')
;
$menu
.attr('tabindex', '-1')
;
}
}
},
is: {
active: function() {
return $module.hasClass(className.active);
},
alreadySetup: function() {
return ($module.is('select') && $module.parent(selector.dropdown).length > 0);
},
animating: function($subMenu) {
return ($subMenu)
? $subMenu.is(':animated') || $subMenu.transition && $subMenu.transition('is animating')
: $menu.is(':animated') || $menu.transition && $menu.transition('is animating')
;
},
allFiltered: function() {
return ($item.filter('.' + className.filtered).length === $item.length);
},
hidden: function($subMenu) {
return ($subMenu)
? $subMenu.is(':hidden')
: $menu.is(':hidden')
;
},
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 $module.hasClass(className.search);
},
searchable: function() {
return ($search.length > 0);
},
searchSelection: function() {
return ( module.is.searchable() && $search.parent().is($module) );
},
selection: function() {
return $module.hasClass(className.selection);
},
upward: function() {
return $module.hasClass(className.upward);
},
visible: function($subMenu) {
return ($subMenu)
? $subMenu.is(':visible')
: $menu.is(':visible')
;
}
},
can: {
click: function() {
return (hasTouch || settings.on == 'click');
},
show: function() {
return !$module.hasClass(className.disabled);
}
},
animate: {
show: function(callback, $subMenu) {
var
$currentMenu = $subMenu || $menu,
start = ($subMenu)
? function() {}
: function() {
module.hideSubMenus();
module.hideOthers();
module.set.active();
}
;
callback = $.isFunction(callback)
? callback
: function(){}
;
module.set.scrollPosition(module.get.activeItem(), true);
module.verbose('Doing menu show animation', $currentMenu);
if( module.is.hidden($currentMenu) || module.is.animating($currentMenu) ) {
if(settings.transition == 'auto') {
settings.transition = module.is.upward()
? 'slide up'
: 'slide down'
;
module.verbose('Automatically determining animation based on animation direction', settings.transition);
}
if(settings.transition == 'none') {
callback.call(element);
}
else if($.fn.transition !== undefined && $module.transition('is supported')) {
$currentMenu
.transition({
animation : settings.transition + ' in',
debug : settings.debug,
verbose : settings.verbose,
duration : settings.duration,
queue : true,
onStart : start,
onComplete : function() {
callback.call(element);
}
})
;
}
else if(settings.transition == 'slide down') {
start();
$currentMenu
.hide()
.clearQueue()
.children()
.clearQueue()
.css('opacity', 0)
.delay(50)
.animate({
opacity : 1
}, settings.duration, 'easeOutQuad', module.event.resetStyle)
.end()
.slideDown(100, 'easeOutQuad', function() {
module.event.resetStyle.call(this);
callback.call(element);
})
;
}
else if(settings.transition == 'fade') {
start();
$currentMenu
.hide()
.clearQueue()
.fadeIn(settings.duration, function() {
module.event.resetStyle.call(this);
callback.call(element);
})
;
}
else {
module.error(error.transition, settings.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.focusSearch();
module.remove.active();
}
;
callback = $.isFunction(callback)
? callback
: function(){}
;
if( module.is.visible($currentMenu) || module.is.animating($currentMenu) ) {
module.verbose('Doing menu hide animation', $currentMenu);
if(settings.transition == 'auto') {
settings.transition = module.is.upward()
? 'slide up'
: 'slide down'
;
}
if(settings.transition == 'none') {
callback.call(element);
}
else if($.fn.transition !== undefined && $module.transition('is supported')) {
$currentMenu
.transition({
animation : settings.transition + ' out',
duration : settings.duration,
debug : settings.debug,
verbose : settings.verbose,
queue : true,
onStart : start,
onComplete : function() {
callback.call(element);
}
})
;
}
else if(settings.transition == 'slide down') {
start();
$currentMenu
.show()
.clearQueue()
.children()
.clearQueue()
.css('opacity', 1)
.animate({
opacity : 0
}, 100, 'easeOutQuad', module.event.resetStyle)
.end()
.delay(50)
.slideUp(100, 'easeOutQuad', function() {
module.event.resetStyle.call(this);
callback.call(element);
})
;
}
else if(settings.transition == 'fade') {
start();
$currentMenu
.show()
.clearQueue()
.fadeOut(150, function() {
module.event.resetStyle.call(this);
callback.call(element);
})
;
}
else {
module.error(error.transition);
}
}
}
},
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: {
regExp: function(text) {
text = String(text);
return text.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, '\\$&');
}
},
setting: function(name, value) {
module.debug('Changing setting', 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({
'Name' : message[0],
'Arguments' : [].slice.call(message, 1) || '',
'Element' : element,
'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
;
};
$.fn.dropdown.settings = {
debug : false,
verbose : true,
performance : true,
on : 'click',
action : 'activate',
allowTab : true,
fullTextSearch : false,
preserveHTML : true,
sortSelect : false,
allowCategorySelection : false,
delay : {
hide : 300,
show : 200,
search : 50,
touch : 50
},
transition : 'auto',
duration : 250,
/* Callbacks */
onNoResults : function(searchTerm){},
onChange : function(value, text){},
onShow : function(){},
onHide : function(){},
/* Component */
name : 'Dropdown',
namespace : 'dropdown',
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',
method : 'The method you called is not defined.',
transition : 'The requested transition was not found'
},
metadata: {
defaultText : 'defaultText',
defaultValue : 'defaultValue',
placeholderText : 'placeholderText',
text : 'text',
value : 'value'
},
selector : {
dropdown : '.ui.dropdown',
input : '> input[type="hidden"], > select',
item : '.item',
menu : '.menu',
menuIcon : '.dropdown.icon',
search : '> input.search, .menu > .search > input, .menu > input.search',
text : '> .text:not(.icon)'
},
className : {
active : 'active',
animating : 'animating',
disabled : 'disabled',
dropdown : 'ui dropdown',
filtered : 'filtered',
loading : 'loading',
menu : 'menu',
placeholder : 'default',
search : 'search',
selected : 'selected',
selection : 'selection',
upward : 'upward',
visible : 'visible'
}
};
/* Templates */
$.fn.dropdown.settings.templates = {
menu: function(select) {
var
placeholder = select.placeholder || false,
values = select.values || {},
html = ''
;
$.each(select.values, function(index, option) {
html += '<div class="item" data-value="' + option.value + '">' + option.name + '</div>';
});
return html;
},
dropdown: function(select) {
var
placeholder = select.placeholder || false,
values = select.values || {},
html = ''
;
html += '<i class="dropdown icon"></i>';
if(select.placeholder) {
html += '<div class="default text">' + placeholder + '</div>';
}
else {
html += '<div class="text"></div>';
}
html += '<div class="menu">';
$.each(select.values, function(index, option) {
html += '<div class="item" data-value="' + option.value + '">' + option.name + '</div>';
});
html += '</div>';
return html;
}
};
/* Dependencies */
$.extend( $.easing, {
easeOutQuad: function (x, t, b, c, d) {
return -c *(t/=d)*(t-2) + b;
},
});
})( jQuery, window , document );