MediaWiki:Common.js

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/* jquery-scrollbox. */
(function($){$.fn.scrollbox=function(config){var defConfig={linear:false,startDelay:2,delay:3,step:5,speed:32,switchItems:1,direction:"vertical",distance:"auto",autoPlay:true,onMouseOverPause:true,paused:false,queue:null,listElement:"ul",listItemElement:"li",infiniteLoop:true,switchAmount:0,afterForward:null,afterBackward:null,triggerStackable:false};config=$.extend(defConfig,config);config.scrollOffset=config.direction==="vertical"?"scrollTop":"scrollLeft";if(config.queue){config.queue=$("#"+config.queue)}return this.each(function(){var container=$(this),containerUL,scrollingId=null,nextScrollId=null,paused=false,releaseStack,backward,forward,resetClock,scrollForward,scrollBackward,forwardHover,pauseHover,switchCount=0,stackedTriggerIndex=0;if(config.onMouseOverPause){container.bind("mouseover",function(){paused=true});container.bind("mouseout",function(){paused=false})}containerUL=container.children(config.listElement+":first-child");if(config.infiniteLoop===false&&config.switchAmount===0){config.switchAmount=containerUL.children().length}scrollForward=function(){if(paused){return}var curLi,i,newScrollOffset,scrollDistance,theStep;curLi=containerUL.children(config.listItemElement+":first-child");scrollDistance=config.distance!=="auto"?config.distance:config.direction==="vertical"?curLi.outerHeight(true):curLi.outerWidth(true);if(!config.linear){theStep=Math.max(3,parseInt((scrollDistance-container[0][config.scrollOffset])*.3,10));newScrollOffset=Math.min(container[0][config.scrollOffset]+theStep,scrollDistance)}else{newScrollOffset=Math.min(container[0][config.scrollOffset]+config.step,scrollDistance)}container[0][config.scrollOffset]=newScrollOffset;if(newScrollOffset>=scrollDistance){for(i=0;i<config.switchItems;i++){if(config.queue&&config.queue.find(config.listItemElement).length>0){containerUL.append(config.queue.find(config.listItemElement)[0]);containerUL.children(config.listItemElement+":first-child").remove()}else{containerUL.append(containerUL.children(config.listItemElement+":first-child"))}++switchCount}container[0][config.scrollOffset]=0;clearInterval(scrollingId);scrollingId=null;if($.isFunction(config.afterForward)){config.afterForward.call(container,{switchCount:switchCount,currentFirstChild:containerUL.children(config.listItemElement+":first-child")})}if(config.triggerStackable&&stackedTriggerIndex!==0){releaseStack();return}if(config.infiniteLoop===false&&switchCount>=config.switchAmount){return}if(config.autoPlay){nextScrollId=setTimeout(forward,config.delay*1e3)}}};scrollBackward=function(){if(paused){return}var curLi,i,newScrollOffset,scrollDistance,theStep;if(container[0][config.scrollOffset]===0){for(i=0;i<config.switchItems;i++){containerUL.children(config.listItemElement+":last-child").insertBefore(containerUL.children(config.listItemElement+":first-child"))}curLi=containerUL.children(config.listItemElement+":first-child");scrollDistance=config.distance!=="auto"?config.distance:config.direction==="vertical"?curLi.height():curLi.width();container[0][config.scrollOffset]=scrollDistance}if(!config.linear){theStep=Math.max(3,parseInt(container[0][config.scrollOffset]*.3,10));newScrollOffset=Math.max(container[0][config.scrollOffset]-theStep,0)}else{newScrollOffset=Math.max(container[0][config.scrollOffset]-config.step,0)}container[0][config.scrollOffset]=newScrollOffset;if(newScrollOffset===0){--switchCount;clearInterval(scrollingId);scrollingId=null;if($.isFunction(config.afterBackward)){config.afterBackward.call(container,{switchCount:switchCount,currentFirstChild:containerUL.children(config.listItemElement+":first-child")})}if(config.triggerStackable&&stackedTriggerIndex!==0){releaseStack();return}if(config.autoPlay){nextScrollId=setTimeout(forward,config.delay*1e3)}}};releaseStack=function(){if(stackedTriggerIndex===0){return}if(stackedTriggerIndex>0){stackedTriggerIndex--;nextScrollId=setTimeout(forward,0)}else{stackedTriggerIndex++;nextScrollId=setTimeout(backward,0)}};forward=function(){clearInterval(scrollingId);scrollingId=setInterval(scrollForward,config.speed)};backward=function(){clearInterval(scrollingId);scrollingId=setInterval(scrollBackward,config.speed)};forwardHover=function(){config.autoPlay=true;paused=false;clearInterval(scrollingId);scrollingId=setInterval(scrollForward,config.speed)};pauseHover=function(){paused=true};resetClock=function(delay){config.delay=delay||config.delay;clearTimeout(nextScrollId);if(config.autoPlay){nextScrollId=setTimeout(forward,config.delay*1e3)}};if(config.autoPlay){nextScrollId=setTimeout(forward,config.startDelay*1e3)}container.bind("resetClock",function(delay){resetClock(delay)});container.bind("forward",function(){if(config.triggerStackable){if(scrollingId!==null){stackedTriggerIndex++}else{forward()}}else{clearTimeout(nextScrollId);forward()}});container.bind("backward",function(){if(config.triggerStackable){if(scrollingId!==null){stackedTriggerIndex--}else{backward()}}else{clearTimeout(nextScrollId);backward()}});container.bind("pauseHover",function(){pauseHover()});container.bind("forwardHover",function(){forwardHover()});container.bind("speedUp",function(speed){if(speed==="undefined"){speed=Math.max(1,parseInt(config.speed/2,10))}config.speed=speed});container.bind("speedDown",function(speed){if(speed==="undefined"){speed=config.speed*2}config.speed=speed});container.bind("updateConfig",function(options){config=$.extend(config,options)})})}})(jQuery);

$( document ).ready(function() {

    $('#scrolling-news').scrollbox({

        linear: true,

        step: 1,

        delay: 0,

        speed: 20

    });

});