AdminLTE/build/js/Layout.js

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/* Layout()
* ========
* Implements AdminLTE layout.
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* Fixes the layout height in case min-height fails.
*
* @usage activated automatically upon window load.
* Configure any options by passing data-option="value"
* to the body tag.
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*/
+function ($) {
'use strict'
var DataKey = 'lte.layout'
var Default = {
slimscroll : true,
resetHeight: true
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}
var Selector = {
wrapper : '.wrapper',
contentWrapper: '.content-wrapper',
layoutBoxed : '.layout-boxed',
mainFooter : '.main-footer',
mainHeader : '.main-header',
sidebar : '.sidebar',
controlSidebar: '.control-sidebar',
fixed : '.fixed',
sidebarMenu : '.sidebar-menu'
}
var ClassName = {
fixed : 'fixed',
holdTransition: 'hold-transition'
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}
var Layout = function (options) {
this.options = options
this.bindedResize = false
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this.activate()
}
Layout.prototype.activate = function () {
this.fix()
this.fixSidebar()
$('body').removeClass(ClassName.holdTransition)
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if (this.options.resetHeight) {
$('body, html, ' + Selector.wrapper).css('height', 'auto')
}
if (!this.bindedResize) {
$(window).resize(function () {
this.fix()
this.fixSidebar()
}.bind(this))
this.bindedResize = true;
}
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$(Selector.sidebarMenu).on('expanded.tree', function () {
this.fix()
this.fixSidebar()
}.bind(this))
$(Selector.sidebarMenu).on('collapsed.tree', function () {
this.fix()
this.fixSidebar()
}.bind(this))
}
Layout.prototype.fix = function () {
// Remove overflow from .wrapper if layout-boxed exists
$(Selector.layoutBoxed + ' > ' + Selector.wrapper).css('overflow', 'hidden')
// Get window height and the wrapper height
var footerHeight = $(Selector.mainFooter).outerHeight() || 0
var neg = $(Selector.mainHeader).outerHeight() + footerHeight
var windowHeight = $(window).height()
var sidebarHeight = $(Selector.sidebar).height() || 0
// Set the min-height of the content and sidebar based on the
// the height of the document.
if ($('body').hasClass(ClassName.fixed)) {
$(Selector.contentWrapper).css('min-height', windowHeight - footerHeight)
} else {
var postSetWidth
if (windowHeight >= sidebarHeight) {
$(Selector.contentWrapper).css('min-height', windowHeight - neg)
postSetWidth = windowHeight - neg
} else {
$(Selector.contentWrapper).css('min-height', sidebarHeight)
postSetWidth = sidebarHeight
}
// Fix for the control sidebar height
var $controlSidebar = $(Selector.controlSidebar)
if (typeof $controlSidebar !== 'undefined') {
if ($controlSidebar.height() > postSetWidth)
$(Selector.contentWrapper).css('min-height', $controlSidebar.height())
}
}
}
Layout.prototype.fixSidebar = function () {
// Make sure the body tag has the .fixed class
if (!$('body').hasClass(ClassName.fixed)) {
if (typeof $.fn.slimScroll != 'undefined') {
$(Selector.sidebar).slimScroll({ destroy: true }).height('auto')
}
return
}
// Enable slimscroll for fixed layout
if (this.options.slimscroll) {
if (typeof $.fn.slimScroll != 'undefined') {
// Destroy if it exists
$(Selector.sidebar).slimScroll({ destroy: true }).height('auto')
// Add slimscroll
$(Selector.sidebar).slimScroll({
height: ($(window).height() - $(Selector.mainHeader).height()) + 'px',
color : 'rgba(0,0,0,0.2)',
size : '3px'
})
}
}
}
// Plugin Definition
// =================
function Plugin(option) {
return this.each(function () {
var $this = $(this)
var data = $this.data(DataKey)
if (!data) {
var options = $.extend({}, Default, $this.data(), typeof option == 'object' && option)
$this.data(DataKey, (data = new Layout(options)))
}
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if (typeof option == 'string') {
if (typeof data[option] == 'undefined') {
throw new Error('No method named ' + option)
}
data[option]()
}
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})
}
var old = $.fn.layout
$.fn.layout = Plugin
$.fn.layout.Constuctor = Layout
// No conflict mode
// ================
$.fn.layout.noConflict = function () {
$.fn.layout = old
return this
}
// Layout DATA-API
// ===============
$(window).on('load', function () {
Plugin.call($('body'))
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})
}(jQuery)