www.gusucode.com > 200套html5精品模板1_50 > 200套html5精品模板1_50/049/js/jquery.lofslidernews.js
/**
* @version $Id: $Revision
* @package jquery
* @subpackage lofslidernews
* @copyright Copyright (C) JAN 2010 LandOfCoder.com <@emai:landofcoder@gmail.com>. All rights reserved.
* @website http://landofcoder.com
* @license This plugin is dual-licensed under the GNU General Public License and the MIT License
*/
// JavaScript Document
(function($) {
$.fn.lofJSidernews = function( settings ) {
return this.each(function() {
// get instance of the lofSiderNew.
new $.lofSidernews( this, settings );
});
}
$.lofSidernews = function( obj, settings ){
this.settings = {
direction : '',
mainItemSelector : 'li',
navInnerSelector : 'ul',
navSelector : 'li' ,
navigatorEvent : 'click',
wapperSelector: '.lof-main-wapper',
interval : 4000,
auto : true, // whether to automatic play the slideshow
maxItemDisplay : 3,
startItem : 0,
navPosition : 'vertical',
navigatorHeight : 100,
navigatorWidth : 310,
duration : 600,
navItemsSelector : '.lof-navigator li',
navOuterSelector : '.lof-navigator-outer' ,
isPreloaded : true,
easing : 'easeInOutQuad'
}
$.extend( this.settings, settings ||{} );
this.nextNo = null;
this.previousNo = null;
this.maxWidth = this.settings.mainWidth || 600;
this.wrapper = $( obj ).find( this.settings.wapperSelector );
this.slides = this.wrapper.find( this.settings.mainItemSelector );
if( !this.wrapper.length || !this.slides.length ) return ;
// set width of wapper
if( this.settings.maxItemDisplay > this.slides.length ){
this.settings.maxItemDisplay = this.slides.length;
}
this.currentNo = isNaN(this.settings.startItem)||this.settings.startItem > this.slides.length?0:this.settings.startItem;
this.navigatorOuter = $( obj ).find( this.settings.navOuterSelector );
this.navigatorItems = $( obj ).find( this.settings.navItemsSelector ) ;
this.navigatorInner = this.navigatorOuter.find( this.settings.navInnerSelector );
if( this.settings.navPosition == 'horizontal' ){
this.navigatorInner.width( this.slides.length * this.settings.navigatorWidth );
this.navigatorOuter.width( this.settings.maxItemDisplay * this.settings.navigatorWidth );
this.navigatorOuter.height( this.settings.navigatorHeight );
} else {
this.navigatorInner.height( this.slides.length * this.settings.navigatorHeight );
this.navigatorOuter.height( this.settings.maxItemDisplay * this.settings.navigatorHeight );
this.navigatorOuter.width( this.settings.navigatorWidth );
}
this.navigratorStep = this.__getPositionMode( this.settings.navPosition );
this.directionMode = this.__getDirectionMode();
if( this.settings.direction == 'opacity') {
this.wrapper.addClass( 'lof-opacity' );
$(this.slides).css('opacity',0).eq(this.currentNo).css('opacity',1);
this.caption = $( obj ).find( '.lof-main-item-desc' );
$( obj ).find( '.lof-main-item-desc' ).hide().eq(0).show();
} else {
this.wrapper.css({'left':'-'+this.currentNo*this.maxSize+'px', 'width':( this.maxWidth ) * this.slides.length } );
}
if( this.settings.isPreloaded ) {
this.preLoadImage( this.onComplete );
} else {
this.onComplete();
}
}
$.lofSidernews.fn = $.lofSidernews.prototype;
$.lofSidernews.fn.extend = $.lofSidernews.extend = $.extend;
$.lofSidernews.fn.extend({
startUp:function( obj, wrapper ) {
seft = this;
this.navigatorItems.each( function(index, item ){
$(item).click( function(){
seft.jumping( index, true );
seft.setNavActive( index, item );
} );
$(item).css( {'height': seft.settings.navigatorHeight, 'width': seft.settings.navigatorWidth} );
})
this.registerWheelHandler( this.navigatorOuter, this );
this.setNavActive(this.currentNo );
if( this.settings.buttons && typeof (this.settings.buttons) == "object" ){
this.registerButtonsControl( 'click', this.settings.buttons, this );
}
if( this.settings.auto )
this.play( this.settings.interval,'next', true );
return this;
},
onComplete:function(){
setTimeout( function(){ $('.preload').fadeOut( 900 ); }, 400 ); this.startUp( );
},
preLoadImage:function( callback ){
var self = this;
var images = this.wrapper.find( 'img' );
var count = 0;
images.each( function(index,image){
if( !image.complete ){
image.onload =function(){
count++;
if( count >= images.length ){
self.onComplete();
}
}
image.onerror =function(){
count++;
if( count >= images.length ){
self.onComplete();
}
}
}else {
count++;
if( count >= images.length ){
self.onComplete();
}
}
} );
},
navivationAnimate:function( currentIndex ) {
if (currentIndex <= this.settings.startItem
|| currentIndex - this.settings.startItem >= this.settings.maxItemDisplay-1) {
this.settings.startItem = currentIndex - this.settings.maxItemDisplay+2;
if (this.settings.startItem < 0) this.settings.startItem = 0;
if (this.settings.startItem >this.slides.length-this.settings.maxItemDisplay) {
this.settings.startItem = this.slides.length-this.settings.maxItemDisplay;
}
}
this.navigatorInner.stop().animate( eval('({'+this.navigratorStep[0]+':-'+this.settings.startItem*this.navigratorStep[1]+'})'),
{duration:500, easing:'easeInOutQuad'} );
},
setNavActive:function( index, item ){
if( (this.navigatorItems) ){
this.navigatorItems.removeClass( 'active' );
$(this.navigatorItems.get(index)).addClass( 'active' );
this.navivationAnimate( this.currentNo );
}
},
__getPositionMode:function( position ){
if( position == 'horizontal' ){
return ['left', this.settings.navigatorWidth];
}
return ['top', this.settings.navigatorHeight];
},
__getDirectionMode:function(){
switch( this.settings.direction ){
case 'opacity': this.maxSize=0; return ['opacity','opacity'];
default: this.maxSize=this.maxWidth; return ['left','width'];
}
},
registerWheelHandler:function( element, obj ){
element.bind('mousewheel', function(event, delta ) {
var dir = delta > 0 ? 'Up' : 'Down',
vel = Math.abs(delta);
if( delta > 0 ){
obj.previous( true );
} else {
obj.next( true );
}
return false;
});
},
registerButtonsControl:function( eventHandler, objects, self ){
for( var action in objects ){
switch (action.toString() ){
case 'next':
objects[action].click( function() { self.next( true) } );
break;
case 'previous':
objects[action].click( function() { self.previous( true) } );
break;
}
}
return this;
},
onProcessing:function( manual, start, end ){
this.previousNo = this.currentNo + (this.currentNo>0 ? -1 : this.slides.length-1);
this.nextNo = this.currentNo + (this.currentNo < this.slides.length-1 ? 1 : 1- this.slides.length);
return this;
},
finishFx:function( manual ){
if( manual ) this.stop();
if( manual && this.settings.auto ){
this.play( this.settings.interval,'next', true );
}
this.setNavActive( this.currentNo );
},
getObjectDirection:function( start, end ){
return eval("({'"+this.directionMode[0]+"':-"+(this.currentNo*start)+"})");
},
fxStart:function( index, obj, currentObj ){
if( this.settings.direction == 'opacity' ) {
$(this.slides).stop().animate({opacity:0}, {duration: this.settings.duration, easing:this.settings.easing} );
$(this.slides).eq(index).stop().animate( {opacity:1},this.settings.duration, this.settings.easing, function(){
$(currentObj.caption.slideUp().eq(index)).slideDown();
} );
}else {
this.wrapper.stop().animate( obj, {duration: this.settings.duration, easing:this.settings.easing} );
}
return this;
},
jumping:function( no, manual ){
this.stop();
if( this.currentNo == no ) return;
var obj = eval("({'"+this.directionMode[0]+"':-"+(this.maxSize*no)+"})");
this.onProcessing( null, manual, 0, this.maxSize )
.fxStart( no, obj, this )
.finishFx( manual );
this.currentNo = no;
},
next:function( manual , item){
this.currentNo += (this.currentNo < this.slides.length-1) ? 1 : (1 - this.slides.length);
this.onProcessing( item, manual, 0, this.maxSize )
.fxStart( this.currentNo, this.getObjectDirection(this.maxSize ), this )
.finishFx( manual );
},
previous:function( manual, item ){
this.currentNo += this.currentNo > 0 ? -1 : this.slides.length - 1;
this.onProcessing( item, manual )
.fxStart( this.currentNo, this.getObjectDirection(this.maxSize ), this )
.finishFx( manual );
},
play:function( delay, direction, wait ){
this.stop();
if(!wait){ this[direction](false); }
var self = this;
this.isRun = setTimeout(function() { self[direction](true); }, delay);
},
stop:function(){
if (this.isRun == null) return;
clearTimeout(this.isRun);
this.isRun = null;
}
})
})(jQuery)