/* ******************************
Semantic Module: Checkbox
Author: Jack Lukic
Notes: First Commit MAy 25, 2013
Simple plug-in which maintains the state for ui dropdown
****************************** */
;(function ( $, window, document, undefined ) {
$.fn.dropdown = function(parameters) {
var
$allModules = $(this),
$document = $(document),
settings = ( $.isPlainObject(parameters) )
? $.extend(true, {}, $.fn.dropdown.settings, parameters)
: $.fn.dropdown.settings,
eventNamespace = '.' + settings.namespace,
moduleNamespace = 'module-' + settings.namespace,
moduleSelector = $allModules.selector || '',
time = new Date().getTime(),
performance = [],
query = arguments[0],
methodInvoked = (typeof query == 'string'),
queryArguments = [].slice.call(arguments, 1),
invokedResponse,
allModules
;
$allModules
.each(function() {
var
$module = $(this),
$menu = $(this).find(settings.selector.menu),
$item = $(this).find(settings.selector.item),
$text = $(this).find(settings.selector.text),
$input = $(this).find(settings.selector.input),
isTouchDevice = ('ontouchstart' in document.documentElement),
selector = $module.selector || '',
element = this,
instance = $module.data('module-' + settings.namespace),
className = settings.className,
metadata = settings.metadata,
namespace = settings.namespace,
animation = settings.animation,
errors = settings.errors,
module
;
module = {
initialize: function() {
module.verbose('Initializing dropdown with bound events', $module);
if(isTouchDevice) {
$module
.on('touchstart' + eventNamespace, module.event.test.toggle)
;
}
else if(settings.on == 'click') {
$module
.on('click' + eventNamespace, module.event.test.toggle)
;
}
else if(settings.on == 'hover') {
$module
.on('mouseenter' + eventNamespace, module.show)
.on('mouseleave' + eventNamespace, module.delayedHide)
;
}
else {
$module
.on(settings.on + eventNamespace, module.toggle)
;
}
if(settings.action == 'form') {
module.set.selected();
}
$item
.on(module.get.selectEvent() + eventNamespace, module.event.item.click)
;
$module
.data(moduleNamespace, module)
;
},
destroy: function() {
module.verbose('Destroying previous module for', $module);
$module
.off(namespace)
;
},
event: {
stopPropagation: function(event) {
event.stopPropagation();
},
test: {
toggle: function(event) {
module.intent.test(event, module.toggle);
event.stopPropagation();
},
hide: function(event) {
module.intent.test(event, module.hide);
event.stopPropagation();
}
},
item: {
click: function (event) {
var
$choice = $(this),
text = $choice.data(metadata.text) || $choice.text(),
value = $choice.data(metadata.value) || text
;
module.verbose('Adding active state to selected item');
$item
.removeClass(className.active)
;
$choice
.addClass(className.active)
;
module.action.determine(text, value);
$.proxy(settings.onChange, $module.get())(value, text);
event.stopPropagation();
}
}
},
intent: {
test: function(event, callback) {
module.debug('Determining whether event occurred in dropdown', event.target);
callback = callback || function(){};
if( $(event.target).closest($menu).size() === 0 ) {
module.verbose('Triggering event', callback);
callback();
}
else {
module.verbose('Event occurred in dropdown, canceling callback');
}
},
bind: function() {
module.verbose('Binding hide intent event to document');
$document
.on(module.get.selectEvent(), module.event.test.hide)
;
},
unbind: function() {
module.verbose('Removing hide intent event from document');
$document
.off(module.get.selectEvent())
;
}
},
action: {
determine: function(text, value) {
if( $.isFunction( module.action[settings.action] ) ) {
module.verbose('Triggering preset action', settings.action);
module.action[ settings.action ](text, value);
}
else if( $.isFunction(settings.action) ) {
module.verbose('Triggering user action', settings.action);
settings.action(text, value);
}
else {
module.error(errors.action);
}
},
nothing: function() {},
hide: function() {
module.hide();
},
changeText: function(text, value) {
module.set.text(text);
module.hide();
},
form: function(text, value) {
module.set.text(text);
module.set.value(value);
module.hide();
}
},
get: {
selectEvent: function() {
return (isTouchDevice)
? 'touchstart'
: 'click'
;
},
text: function() {
return $text.text();
},
value: function() {
return $input.val();
},
item: function(value) {
var
$selectedItem
;
value = value || $input.val();
$item
.each(function() {
if( $(this).data(metadata.value) == value ) {
$selectedItem = $(this);
}
})
;
return $selectedItem || false;
}
},
set: {
text: function(text) {
module.debug('Changing text', text, $text);
$text.text(text);
},
value: function(value) {
module.debug('Adding selected value to hidden input', value, $input);
$input.val(value);
},
selected: function(value) {
var
selectedValue = value || $input.val(),
$selectedItem = module.get.item(value),
selectedText
;
if($selectedItem) {
module.debug('Setting selected menu item to', $selectedItem);
selectedText = $selectedItem.data(metadata.text) || $selectedItem.text();
$item
.removeClass(className.active)
;
$selectedItem
.addClass(className.active)
;
module.set.text(selectedText);
}
}
},
is: {
visible: function() {
return $menu.is(':visible');
},
hidden: function() {
return $menu.is(':not(:visible)');
}
},
can: {
click: function() {
return (isTouchDevice || settings.on == 'click');
},
show: function() {
return !$module.hasClass(className.disabled);
}
},
animate: {
show: function() {
module.verbose('Doing menu showing animation');
if(animation.show == 'none') {
$menu
.show()
;
}
else if(animation.show == 'fade') {
$menu
.fadeIn(150)
;
}
else if(animation.show == 'slide') {
$menu
.clearQueue()
.children()
.clearQueue()
.css('opacity', 0)
.delay(50)
.animate({
opacity : 1
}, 200, 'easeOutQuad')
.end()
.slideDown(100, 'easeOutQuad')
;
}
else {
module.error(errors.animation);
}
},
hide: function() {
module.verbose('Doing menu hiding animation');
if(animation.hide == 'none') {
$menu
.hide()
;
}
else if(animation.hide == 'fade') {
$menu
.fadeOut(150)
;
}
else if(animation.hide == 'slide') {
$menu
.clearQueue()
.children()
.clearQueue()
.css('opacity', 1)
.animate({
opacity : 0
}, 100, 'easeOutQuad')
.end()
.delay(50)
.slideUp(100, 'easeOutQuad')
;
}
else {
module.error(errors.animation);
}
}
},
show: function() {
module.debug('Checking if dropdown can show');
clearTimeout(module.graceTimer);
if( !module.is.visible() ) {
module.hideOthers();
$module
.addClass(className.visible)
;
module.animate.show();
if( module.can.click() ) {
module.intent.bind();
}
$.proxy(settings.onShow, $module.get() )();
}
},
hide: function() {
if( !module.is.hidden() ) {
module.debug('Hiding dropdown');
$module
.removeClass(className.visible)
;
if( module.can.click() ) {
module.intent.unbind();
}
module.animate.hide();
$.proxy(settings.onHide, $module.get() )();
}
},
delayedHide: function() {
module.verbose('User moused away setting timer to hide dropdown');
module.graceTimer = setTimeout(module.hide, settings.gracePeriod);
},
hideOthers: function() {
module.verbose('Finding other dropdowns to hide');
$allModules
.not($module)
.has(settings.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) {
module.debug('Changing setting', name, value);
if(value !== undefined) {
if( $.isPlainObject(name) ) {
$.extend(true, settings, name);
}
else {
settings[name] = value;
}
}
else {
return settings[name];
}
},
internal: function(name, value) {
module.debug('Changing internal', name, value);
if(value !== undefined) {
if( $.isPlainObject(name) ) {
$.extend(true, module, name);
}
else {
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.moduleName + ':');
}
}
},
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.moduleName + ':');
}
}
},
error: function() {
module.error = Function.prototype.bind.call(console.log, console, settings.moduleName + ':');
},
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' : message[1] || '',
'Execution Time' : executionTime
});
}
clearTimeout(module.performance.timer);
module.performance.timer = setTimeout(module.performance.display, 100);
},
display: function() {
var
title = settings.moduleName + ':',
totalTime = 0
;
time = false;
$.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
maxDepth,
found
;
passedArguments = passedArguments || queryArguments;
context = element || context;
if(typeof query == 'string' && instance !== undefined) {
query = query.split('.');
maxDepth = query.length - 1;
$.each(query, function(depth, value) {
if( $.isPlainObject( instance[value] ) && (depth != maxDepth) ) {
instance = instance[value];
return true;
}
else if( instance[value] !== undefined ) {
found = instance[value];
return true;
}
module.error(errors.method);
return false;
});
}
if ( $.isFunction( found ) ) {
instance.verbose('Executing invoked function', found);
return found.apply(context, passedArguments);
}
return found || false;
}
};
if(methodInvoked) {
if(instance === undefined) {
module.initialize();
}
invokedResponse = module.invoke(query);
}
else {
if(instance !== undefined) {
module.destroy();
}
module.initialize();
}
})
;
return (invokedResponse)
? invokedResponse
: this
;
};
$.fn.dropdown.settings = {
moduleName : 'Dropdown',
namespace : 'dropdown',
verbose : true,
debug : true,
performance : true,
on : 'click',
gracePeriod : 300,
action : 'hide',
animation : {
show: 'slide',
hide: 'slide'
},
onChange : function(){},
onShow : function(){},
onHide : function(){},
errors : {
action : 'You called a dropdown action that was not defined',
method : 'The method you called is not defined.',
animation : 'The requested animation was not found'
},
metadata: {
text : 'text',
value : 'value'
},
selector : {
menu : '.menu',
item : '.menu > .item',
text : '> .text',
input : '> input[type="hidden"]'
},
className : {
active : 'active',
disabled : 'disabled',
visible : 'visible'
}
};
})( jQuery, window , document );