Reduce flyout menu JS complexity

This commit is contained in:
Eric Lippmann 2017-11-17 15:16:52 +01:00
parent fa7bc9aa2d
commit 807fbdb131
4 changed files with 61 additions and 145 deletions

View File

@ -226,3 +226,12 @@ html.no-js .controls > .tabs {
background-color: @color-notification-warning;
}
}
// Z-Index correction
#main {
z-index: 1;
}
#sidebar {
z-index: 2;
}

View File

@ -30,6 +30,15 @@
color: @icinga-blue;
}
#menu .nav-item {
vertical-align: middle;
> a {
overflow: hidden;
text-overflow: ellipsis;
}
}
#menu .nav-level-1 > .nav-item {
border-left: 5px solid transparent;
line-height: 2.167em; // 26 px
@ -104,7 +113,6 @@
}
// Badge offset correction
#menu > nav > .nav-level-1 > .badge-nav-item > a > .badge {
margin-top: 0.2em;
}
@ -114,26 +122,24 @@
}
// Hovered menu
#menu .nav-level-1 > .nav-item.hover {
position: relative;
#menu .nav-level-1 > .nav-item:not(.active):hover {
> .nav-level-2 {
&:before {
border: 0.5em solid rgba(0, 0, 0, 0);
border-right-color: @text-color;
content: "";
position: absolute;
right: 0;
top: 30%;
width: 1em;
position: fixed;
margin-left: -1em;
margin-top: 0.5em;
}
> .nav-level-2 {
background-color: @text-color;
color: @text-color-inverted;
left: 100%;
padding: @vertical-padding 0;
position: absolute;
top: 0;
position: fixed;
margin-left: 15.583em;
margin-top: -3.2em;
width: 14em;
> .nav-item {
@ -152,20 +158,6 @@
}
}
#layout.hoveredmenu {
#main {
z-index: 2;
}
#sidebar {
z-index: 3;
}
#menu {
overflow: visible;
}
}
// Accessibility skip links
.skip-links {
position: relative;

View File

@ -106,6 +106,16 @@
#layout.twocols #col2 {
border-left: 1px solid @gray-lighter;
display: block;
> .controls > .tabs:before {
background-color: @icinga-blue;
content: "";
display: block;
height: 3em;
margin-left: -1px;
width: 1px;
position: fixed;
}
}
#layout.twocols > #main > .container {

View File

@ -10,9 +10,8 @@
Icinga.EventListener.call(this, icinga);
this.on('click', '#menu a', this.linkClicked, this);
this.on('click', '#menu tr[href]', this.linkClicked, this);
this.on('mouseenter', '#menu > nav > ul > li', this.menuTitleHovered, this);
this.on('mouseleave', '#sidebar', this.leaveSidebar, this);
this.on('rendered', '#menu', this.onRendered, this);
this.on('mouseenter', '#menu .nav-level-1 > .nav-item', this.fixFlyoutPosition, this);
/**
* The DOM-Path of the active item
@ -23,15 +22,6 @@
*/
this.active = null;
/**
* The DOM-Path of the hovered item
*
* @see getDomPath
*
* @type {null|Array}
*/
this.hovered = null;
/**
* The menu
*
@ -39,6 +29,7 @@
*/
this.$menu = null;
};
Navigation.prototype = new Icinga.EventListener();
/**
@ -71,7 +62,7 @@
};
/**
* Re-render the menu selection and menu hovering according to the current state
* Re-render the menu selection according to the current state
*/
Navigation.prototype.refresh = function() {
// restore selection to current active element
@ -89,14 +80,6 @@
$el.html($el.html());
}
}
// restore hovered menu to current hovered element
if (this.hovered) {
var hovered = this.icinga.utils.getElementByDomPath(this.hovered);
if (hovered) {
this.hoverElement($(hovered));
}
}
};
/**
@ -107,26 +90,13 @@
Navigation.prototype.linkClicked = function(event) {
var $a = $(this);
var href = $a.attr('href');
var $li;
var _this = event.data.self;
var icinga = _this.icinga;
_this.hovered = null;
if (href.match(/#/)) {
// ...it may be a menu section without a dedicated link.
// Switch the active menu item:
_this.setActive($a);
$li = $a.closest('li');
if ($li.hasClass('hover')) {
$li.removeClass('hover');
}
if (href === '#') {
// Allow to access dropdown menu by keyboard
if ($a.hasClass('dropdown-toggle')) {
$a.closest('li').toggleClass('hover');
}
return;
}
} else {
_this.setActive($(event.target));
}
@ -233,6 +203,22 @@
this.active = null;
};
/**
* Fix top position of the flyout menu
*
* @param e
*/
Navigation.prototype.fixFlyoutPosition = function(e) {
var $target = $(this);
var $flyout = $target.find('.nav-level-2');
if ($flyout.length) {
$flyout.css({
top: $target.position().top - parseInt($flyout.css('margin-top'), 10)
});
}
};
/**
* Called when the history changes
*
@ -267,87 +253,6 @@
return this.active;
};
Navigation.prototype.menuTitleHovered = function(event) {
if ($('#layout').hasClass('minimal-layout')) {
return;
}
var $li = $(this),
delay = 800,
_this = event.data.self;
_this.hovered = null;
if ($li.hasClass('active')) {
$li.siblings().removeClass('hover');
return;
}
if ($li.children('ul').children('li').length === 0) {
return;
}
if ($('#menu').scrollTop() > 0) {
return;
}
if ($('#layout').hasClass('hoveredmenu')) {
delay = 0;
}
setTimeout(function () {
try {
if (!$li.is('li:hover')) {
return;
}
if ($li.hasClass('active')) {
return;
}
} catch(e) { /* Bypass because if IE8 */ }
$li.siblings().each(function () {
var $sibling = $(this);
try {
if ($sibling.is('li:hover')) {
return;
}
} catch(e) { /* Bypass because if IE8 */ };
if ($sibling.hasClass('hover')) {
$sibling.removeClass('hover');
}
});
_this.hoverElement($li);
}, delay);
};
Navigation.prototype.leaveSidebar = function (event) {
var $sidebar = $(this),
$li = $sidebar.find('li.hover'),
_this = event.data.self;
if (! $li.length) {
$('#layout').removeClass('hoveredmenu');
return;
}
setTimeout(function () {
try {
if ($li.is('li:hover') || $sidebar.is('sidebar:hover')) {
return;
}
} catch(e) { /* Bypass because if IE8 */ };
$li.removeClass('hover');
$('#layout').removeClass('hoveredmenu');
}, 500);
_this.hovered = null;
};
Navigation.prototype.hoverElement = function ($li) {
$('#layout').addClass('hoveredmenu');
$li.addClass('hover');
if ($li[0]) {
this.hovered = this.icinga.utils.getDomPath($li[0]);
} else {
this.hovered = null;
}
};
Icinga.Behaviors.Navigation = Navigation;
}) (Icinga, jQuery);