Files
PurpleMine2/src/javascripts/modules/MenuCollapse.js
2018-05-14 20:41:46 +01:00

129 lines
3.0 KiB
JavaScript

var PurpleMine = PurpleMine || {} // eslint-disable-line no-use-before-define
PurpleMine.MenuCollapse = (function () {
'use strict'
var instance
var translations = {
en: {
topMenuToggler: 'Expand/collapse top menu'
},
ro: {
topMenuToggler: 'Deschide/închide meniul de sus'
},
fr: {
topMenuToggler: 'Développer/réduire le menu principal'
},
pl: {
topMenuToggler: 'Zwiń/rozwiń górne menu'
},
de: {
topMenuToggler: 'Ein-/Ausklappen Hauptmenu'
},
ja: {
topMenuToggler: 'トップメニューの展開/折りたたみ'
}
}
function MenuCollapse () {
if (instance) {
return instance
}
instance = this
this.lang = document.documentElement.lang
if (typeof translations[this.lang] === 'undefined') {
this.lang = 'en'
}
this._ = translations[this.lang]
this.menus = {
top: {
$el: $('#top-menu')
}
}
for (var menu in this.menus) {
if (this.menus.hasOwnProperty(menu) && this.menus[menu].$el.length > 0) {
handleMenu(menu)
}
}
}
function handleMenu (menu) {
if (instance.menus[menu].$el.css('maxHeight') === 'none') {
return false
}
instance.menus[menu].collapsed = true
if (window.localStorage) {
instance.menus[menu].collapsed =
localStorage.getItem(getMenuStorageKey(menu)) === null
}
buildToggleButton(menu)
if (instance.isCollapsed(menu) === false) {
instance.expandMenu(menu)
}
}
function getMenuStorageKey (menu) {
return 'PurpleMine:' + menu + 'MenuExpanded'
}
function buildToggleButton (menu) {
var togglerClass = menu + '-menu-toggler'
var togglerLabel = instance._[menu + 'MenuToggler']
var togglerHtml = '<a href="javascript:;" class="' +
togglerClass +
'" title="' +
togglerLabel +
'"></a>'
instance.menus[menu].$toggler = $(togglerHtml)
instance.menus[menu].$el.prepend(instance.menus[menu].$toggler)
instance.menus[menu].$toggler.on('click', { menu: menu }, instance.toggleMenu)
}
MenuCollapse.prototype.toggleMenu = function (event) {
var menu = event.data.menu || ''
if (instance.isCollapsed(menu)) {
instance.expandMenu(menu)
} else {
instance.collapseMenu(menu)
}
}
MenuCollapse.prototype.isCollapsed = function (menu) {
return this.menus[menu].collapsed
}
MenuCollapse.prototype.expandMenu = function (menu) {
this.menus[menu].$el.addClass('expanded')
this.menus[menu].$toggler.addClass('expanded')
this.menus[menu].collapsed = false
if (window.localStorage) {
localStorage.setItem(getMenuStorageKey(menu), 'x')
}
}
MenuCollapse.prototype.collapseMenu = function (menu) {
this.menus[menu].$el.removeClass('expanded')
this.menus[menu].$toggler.removeClass('expanded')
this.menus[menu].collapsed = true
if (window.localStorage) {
localStorage.removeItem(getMenuStorageKey(menu))
}
}
return MenuCollapse
}())