8 lines
3.7 KiB
JavaScript
8 lines
3.7 KiB
JavaScript
/*
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// Infinite Scroll jQuery plugin
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// copyright Paul Irish, licensed GPL & MIT
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// version 1.2.090804
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// home and docs: http://www.infinite-scroll.com
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*/
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(function(A){A.fn.infinitescroll=function(N,L){function E(){if(B.debug){window.console&&console.log.call(console,arguments)}}function G(P){for(var O in P){if(O.indexOf&&O.indexOf("Selector")&&A(P[O]).length===0){E("Your "+O+" found no elements.");return false}return true}}function K(O){O.match(C)?O.match(C)[2]:O;if(O.match(/^(.*?)\b2\b(.*?$)/)){O=O.match(/^(.*?)\b2\b(.*?$)/).slice(1)}else{if(O.match(/^(.*?)2(.*?$)/)){E("Trying backup next selector parse technique. Treacherous waters here, matey.");O=O.match(/^(.*?)2(.*?$)/).slice(1)}else{E("Sorry, we couldn't parse your Next (Previous Posts) URL. Verify your the css selector points to the correct A tag. If you still get this error: yell, scream, and kindly ask for help at infinite-scroll.com.");H.isInvalidPage=true}}return O}function I(){return B.localMode?(A(H.container)[0].scrollHeight&&A(H.container)[0].scrollHeight):A(document).height()}function F(Q,P){var O=I()-(Q.localMode?A(P.container).scrollTop():(A(P.container).scrollTop()||A(P.container.ownerDocument.body).scrollTop()))-A(Q.localMode?P.container:window).height();E("math:",O,P.pixelsFromNavToBottom);return(O-Q.bufferPx<P.pixelsFromNavToBottom)}function J(){H.loadingMsg.find("img").hide().parent().find("div").html(B.donetext).animate({opacity:1},2000).fadeOut("normal");B.errorCallback()}function D(R,Q,O,S){if(O.isDuringAjax||O.isInvalidPage||O.isDone){return }if(!F(Q,O)){return }O.isDuringAjax=true;O.loadingMsg.appendTo(Q.contentSelector).show();A(Q.navSelector).hide();O.currPage++;E("heading into ajax",R);var P=A(Q.contentSelector).is("table")?A("<tbody/>"):A("<div/>");P.attr("id","infscr-page-"+O.currPage).addClass("infscr-pages").appendTo(Q.contentSelector).load(R.join(O.currPage)+" "+Q.itemSelector,null,function(){if(O.isDone){J();return false}else{if(P.children().length==0){A.event.trigger("ajaxError",[{status:404}])}O.loadingMsg.fadeOut("normal");if(Q.animate){var T=A(window).scrollTop()+A("#infscr-loading").height()+Q.extraScrollPx+"px";A("html,body").animate({scrollTop:T},800,function(){O.isDuringAjax=false})}S.call(P[0]);if(!Q.animate){O.isDuringAjax=false}}})}var B=A.extend({},A.infinitescroll.defaults,N);var H=A.infinitescroll;L=L||function(){};if(!G(B)){return false}H.container=B.localMode?this:document.documentElement;B.contentSelector=B.contentSelector||this;var C=/(.*?\/\/).*?(\/.*)/;var M=A(B.nextSelector).attr("href");if(!M){E("Navigation selector not found");return }M=K(M);if(B.localMode){A(H.container)[0].scrollTop=0}H.pixelsFromNavToBottom=I()+A(H.container).offset().top-A(B.navSelector).offset().top;H.loadingMsg=A('<div id="infscr-loading" style="text-align: center;"><img alt="Loading..." src="'+B.loadingImg+'" /><div>'+B.loadingText+"</div></div>");(new Image()).src=B.loadingImg;A(document).ajaxError(function(P,Q,O){E("Page not found. Self-destructing...");if(Q.status==404){J();H.isDone=true;A(B.localMode?this:window).unbind("scroll.infscr")}});A(B.localMode?this:window).bind("scroll.infscr",function(){D(M,B,H,L)}).trigger("scroll.infscr");return this};A.infinitescroll={defaults:{debug:false,preload:false,nextSelector:"div.navigation a:first",loadingImg:"http://www.infinite-scroll.com/loading.gif",loadingText:"<em>Loading the next set of posts...</em>",donetext:"<em>Congratulations, you've reached the end of the internet.</em>",navSelector:"div.navigation",contentSelector:null,extraScrollPx:150,itemSelector:"div.post",animate:false,localMode:false,bufferPx:40,errorCallback:function(){}},loadingImg:undefined,loadingMsg:undefined,container:undefined,currPage:1,currDOMChunk:null,isDuringAjax:false,isInvalidPage:false,isDone:false}})(jQuery); |