[英]Navigation menu to show current page link active - jquery
我正在使用jquery手风琴插件，到目前为止它可以正常工作，但是它显示活动链接，但它们未链接到任何页面，它们只是用作同一页面内的编号链接定位符。 单击打开新页面后，如何使其显示当前页面链接处于活动状态？
我是JQuery的新手，确实需要它来工作。 请帮忙！
这是HTM，如果您看到例如sub1的代码，但是如何使用真实页面链接并通过网站保留相同的链接活动状态
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<title>Accordion Test</title>
<link rel="stylesheet" href="accordionDemo.css" />
<script src="http://www.google.com/jsapi" type="text/javascript"></script>
<script type="text/javascript">google.load("jquery", "1");</script>
<script type="text/javascript" src="../js/chili-1.7.pack.js"></script>
<script type="text/javascript" src="../js/jquery.easing.js"></script>
<script type="text/javascript" src="../js/jquery.dimensions.js"></script>
<script type="text/javascript" src="../js//jquery.accordion.js"></script>
<script type="text/javascript">
jQuery().ready(function(){
// simple accordion with mouseover event
jQuery('#navigation').accordion
({
active: false,
header: '.head',
navigation: true,
event: 'mouseover',
fillSpace: true,
animated: 'easeslide'
});
});
</script>
</head>
<body>
<div id="wrapper">
<div id="navBar">
<ul id="navigation">
<li>
<a class="head" href="?p=1">About SfT</a>
<ul>
<li><a href="?p=1.1">sub1</a></li>
<li><a href="?p=1.2">sub2</a></li>
<li><a href="?p=1.3">sub3</a></li>
<li><a href="?p=1.4.1">sub4</a></li>
<li><a href="?p=1.4.2">sub4.1</a></li>
<li><a href="?p=1.4.3">sub4.2</a></li>
</ul>
</li>
<li>
<a class="head" href="?p=1.2">Your Life</a>
<ul>
<li><a href="?p=1.2.1">sub1</a></li>
<li><a href="?p=1.2.2">sub2</a></li>
<li><a href="?p=1.2.3">sub3</a></li>
<li><a href="?p=1.2.4">sub4</a></li>
<li><a href="?p=1.2.5">sub5</a></li>
</ul>
</li>
</ul>
</div>
</div> <!--end wrapper-->
</body>
</html>
CSS
* { margin: 0; padding: 0; }
body { margin: 0; padding: 0; font-size: small; color: #333 }
#wrapper {
width:600px;
margin:0 auto;
padding-top:100px;
}
#navBar {
height:330px;
margin-bottom:1em;
}
#navigation {
margin:0px;
padding:0px;
text-indent:0px;
/*background-color:#EFEFEF; sublists background color */
width:200px;
}
#navigation a.head { /* list header */
height: 40px;
cursor:pointer;
background: url(collapsed.gif) no-repeat scroll 3px 4px; /* list header bg color and img settings */
color:#999;
display:block;
font-weight:bold;
font-size: 22px;
margin:0px;
padding:0px;
text-indent:20px;
text-decoration: none;
}
#navigation a.head:hover {
color:#900;
}
#navigation a.selected {
background-image: url(expanded.gif);
color:#900;
}
#navigation a.current {
color: #F60;;
font-weight:bold;
}
#navigation ul {
margin:0px;
padding:0px;
text-indent:0px;
}
#navigation li {
list-style:none outside none;
/*display:inline;*/
padding:5px 0 5px 0;
height:0 auto;
}
#navigation li li a {
color:#000000;
display:block;
font-size:16px;
text-indent:20px;
text-decoration: none;
}
#navigation li li a:hover { /* sublist hover state bg and color */
color:#F60;;
font-weight:bold;
}
还有jquery.accordion.js代码
/*
* jQuery UI Accordion 1.6
*
* Copyright (c) 2007 Jörn Zaefferer
*
* http://docs.jquery.com/UI/Accordion
*
* Dual licensed under the MIT and GPL licenses:
* http://www.opensource.org/licenses/mit-license.php
* http://www.gnu.org/licenses/gpl.html
*
* Revision: $Id: jquery.accordion.js 4876 2008-03-08 11:49:04Z joern.zaefferer $
*
*/
;(function($) {
// If the UI scope is not available, add it
$.ui = $.ui || {};
$.fn.extend({
accordion: function(options, data) {
var args = Array.prototype.slice.call(arguments, 1);
return this.each(function() {
if (typeof options == "string") {
var accordion = $.data(this, "ui-accordion");
accordion[options].apply(accordion, args);
// INIT with optional options
} else if (!$(this).is(".ui-accordion"))
$.data(this, "ui-accordion", new $.ui.accordion(this, options));
});
},
// deprecated, use accordion("activate", index) instead
activate: function(index) {
return this.accordion("activate", index);
}
});
$.ui.accordion = function(container, options) {
// setup configuration
this.options = options = $.extend({}, $.ui.accordion.defaults, options);
this.element = container;
$(container).addClass("ui-accordion");
if ( options.navigation ) {
var current = $(container).find("a").filter(options.navigationFilter);
if ( current.length ) {
if ( current.filter(options.header).length ) {
options.active = current;
} else {
options.active = current.parent().parent().prev();
current.addClass("current");
}
}
}
// calculate active if not specified, using the first header
options.headers = $(container).find(options.header);
options.active = findActive(options.headers, options.active);
if ( options.fillSpace ) {
var maxHeight = $(container).parent().height();
options.headers.each(function() {
maxHeight -= $(this).outerHeight();
});
var maxPadding = 0;
options.headers.next().each(function() {
maxPadding = Math.max(maxPadding, $(this).innerHeight() - $(this).height());
}).height(maxHeight - maxPadding);
} else if ( options.autoheight ) {
var maxHeight = 0;
options.headers.next().each(function() {
maxHeight = Math.max(maxHeight, $(this).outerHeight());
}).height(maxHeight);
}
options.headers
.not(options.active || "")
.next()
.hide();
options.active.parent().andSelf().addClass(options.selectedClass);
if (options.event)
$(container).bind((options.event) + ".ui-accordion", clickHandler);
};
$.ui.accordion.prototype = {
activate: function(index) {
// call clickHandler with custom event
clickHandler.call(this.element, {
target: findActive( this.options.headers, index )[0]
});
},
enable: function() {
this.options.disabled = false;
},
disable: function() {
this.options.disabled = true;
},
destroy: function() {
this.options.headers.next().css("display", "");
if ( this.options.fillSpace || this.options.autoheight ) {
this.options.headers.next().css("height", "");
}
$.removeData(this.element, "ui-accordion");
$(this.element).removeClass("ui-accordion").unbind(".ui-accordion");
}
}
function scopeCallback(callback, scope) {
return function() {
return callback.apply(scope, arguments);
};
}
function completed(cancel) {
// if removed while animated data can be empty
if (!$.data(this, "ui-accordion"))
return;
var instance = $.data(this, "ui-accordion");
var options = instance.options;
options.running = cancel ? 0 : --options.running;
if ( options.running )
return;
if ( options.clearStyle ) {
options.toShow.add(options.toHide).css({
height: "",
overflow: ""
});
}
$(this).triggerHandler("change.ui-accordion", [options.data], options.change);
}
function toggle(toShow, toHide, data, clickedActive, down) {
var options = $.data(this, "ui-accordion").options;
options.toShow = toShow;
options.toHide = toHide;
options.data = data;
var complete = scopeCallback(completed, this);
// count elements to animate
options.running = toHide.size() == 0 ? toShow.size() : toHide.size();
if ( options.animated ) {
if ( !options.alwaysOpen && clickedActive ) {
$.ui.accordion.animations[options.animated]({
toShow: jQuery([]),
toHide: toHide,
complete: complete,
down: down,
autoheight: options.autoheight
});
} else {
$.ui.accordion.animations[options.animated]({
toShow: toShow,
toHide: toHide,
complete: complete,
down: down,
autoheight: options.autoheight
});
}
} else {
if ( !options.alwaysOpen && clickedActive ) {
toShow.toggle();
} else {
toHide.hide();
toShow.show();
}
complete(true);
}
}
function clickHandler(event) {
var options = $.data(this, "ui-accordion").options;
if (options.disabled)
return false;
// called only when using activate(false) to close all parts programmatically
if ( !event.target && !options.alwaysOpen ) {
options.active.parent().andSelf().toggleClass(options.selectedClass);
var toHide = options.active.next(),
data = {
instance: this,
options: options,
newHeader: jQuery([]),
oldHeader: options.active,
newContent: jQuery([]),
oldContent: toHide
},
toShow = options.active = $([]);
toggle.call(this, toShow, toHide, data );
return false;
}
// get the click target
var clicked = $(event.target);
// due to the event delegation model, we have to check if one
// of the parent elements is our actual header, and find that
if ( clicked.parents(options.header).length )
while ( !clicked.is(options.header) )
clicked = clicked.parent();
var clickedActive = clicked[0] == options.active[0];
// if animations are still active, or the active header is the target, ignore click
if (options.running || (options.alwaysOpen && clickedActive))
return false;
if (!clicked.is(options.header))
return;
// switch classes
options.active.parent().andSelf().toggleClass(options.selectedClass);
if ( !clickedActive ) {
clicked.parent().andSelf().addClass(options.selectedClass);
}
// find elements to show and hide
var toShow = clicked.next(),
toHide = options.active.next(),
//data = [clicked, options.active, toShow, toHide],
data = {
instance: this,
options: options,
newHeader: clicked,
oldHeader: options.active,
newContent: toShow,
oldContent: toHide
},
down = options.headers.index( options.active[0] ) > options.headers.index( clicked[0] );
options.active = clickedActive ? $([]) : clicked;
toggle.call(this, toShow, toHide, data, clickedActive, down );
return false;
};
function findActive(headers, selector) {
return selector != undefined
? typeof selector == "number"
? headers.filter(":eq(" + selector + ")")
: headers.not(headers.not(selector))
: selector === false
? $([])
: headers.filter(":eq(0)");
}
$.extend($.ui.accordion, {
defaults: {
selectedClass: "selected",
alwaysOpen: true,
animated: 'slide',
event: "click",
header: "a",
autoheight: true,
running: 0,
navigationFilter: function() {
return this.href.toLowerCase() == location.href.toLowerCase();
}
},
animations: {
slide: function(options, additions) {
options = $.extend({
easing: "swing",
duration: 300
}, options, additions);
if ( !options.toHide.size() ) {
options.toShow.animate({height: "show"}, options);
return;
}
var hideHeight = options.toHide.height(),
showHeight = options.toShow.height(),
difference = showHeight / hideHeight;
options.toShow.css({ height: 0, overflow: 'hidden' }).show();
options.toHide.filter(":hidden").each(options.complete).end().filter(":visible").animate({height:"hide"},{
step: function(now) {
var current = (hideHeight - now) * difference;
if ($.browser.msie || $.browser.opera) {
current = Math.ceil(current);
}
options.toShow.height( current );
},
duration: options.duration,
easing: options.easing,
complete: function() {
if ( !options.autoheight ) {
options.toShow.css("height", "auto");
}
options.complete();
}
});
},
bounceslide: function(options) {
this.slide(options, {
easing: options.down ? "bounceout" : "swing",
duration: options.down ? 1000 : 200
});
},
easeslide: function(options) {
this.slide(options, {
easing: "easeinout",
duration: 700
})
}
}
});
})(jQuery);
据我了解，您也希望当前页面。 活动链接。 从您的链接href=""中可以看到，您正在使用PHP平台显示页面，而不是JS。 因此，在这种情况下，这基本上与JS无关，并且您提供的大多数脚本都不相关。
您想使用PHP和CSS做到这一点。 因此，基本上，如果您正在使用CMS类型的软件，则在生成菜单时要在菜单生成循环内将菜单pageid与当前pageid进行匹配。
因此，循环背后的基本思想是这样的：
foreach ($menus as $menu) {
echo '<a href="?p=' . $menu['pageid'] . '"' . ($menu['pageid'] == $pageid ? ' class="active"' : '') . '>' . $menu['title'] . '</a>';
}
因此，活动链接是通过PHP设置的，而CSS则将其设为“ pop”。 这就是每个人的做法。 另外，最好使用此方法，因为您不必在页面加载后等待，因此JS将开始工作。
另类
但是，如果您愿意，可以通过设置cookie来使用JS，每次用户单击某个链接时。 因此，下一页将基于该cookie值设置活动链接。 但是，不建议这样做，因为它会导致延迟，并且总体上看起来不如PHP和CSS好。
在我的示例中，您可以看到我正在使用Klaus Hartl的Cookie插件。.但是，我找不到指向该插件的直接链接..因此，我使用了本地插件之一。 您可以在资源中获得链接。
示例： http ： //jsfiddle.net/hobobne/qruXC/
这是一个非常原始的概念示例。 由于您提供的CSS是局部的，因此您可以看到..它看起来并不漂亮。 我还只是将#navigation a.active {}添加到CSS中。 我希望您能想到这个想法，并且可以从那里继续。
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