94 lines
2.2 KiB
JavaScript
94 lines
2.2 KiB
JavaScript
$.fn.clone = function(){
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return this.pushStack( $.map(this,"a.cloneNode(true)"), arguments );
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};
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$.fn.pager = function(step,fn) {
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var types = {
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UL: "li",
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OL: "li",
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DL: "dt",
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TABLE: "tbody > tr"
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};
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return this.each(function(){
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var pagedUI = this;
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var rows = $(types[this.nodeName], this);
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var curPage = 0;
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var names = [], num = [];
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if ( !step || step.constructor != Function ) {
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step = step || 10;
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if (rows.length > step)
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for ( var i = 0; i <= rows.length; i += step ) {
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names.push( names.length + 1 );
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num.push( [ i * step, step ] );
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}
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} else {
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var last;
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rows.each(function(){
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var l = step.apply( this ).substr(0,1);
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if ( l != last ) {
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names.push( l.toUpperCase() );
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var pre = num.length ? num[ num.length - 1 ][0] + num[ num.length - 1 ][1] : 0;
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num.push( [ pre, 0 ] );
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last = l;
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}
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num[ num.length - 1 ][1]++;
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});
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}
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if ( names.length ) {
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var pager = $("<ul class='nav-page'></ul>");
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for ( var i = 0; i < names.length; i++ )
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$("<a href=''></a>").rel( i ).html( names[i] ).click(function() {
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return handleCrop( this.rel );
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}).wrap("<li></li>").parent().appendTo(pager);
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pager.insertBefore( this );
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var prev = $("<a href=''>« Prev</a>").click(function(){
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return handleCrop( --curPage );
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}).wrap("<li class='prev'></li>").parent().prependTo(pager);
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var next = $("<a href=''>Next »</a>").click(function(){
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return handleCrop( ++curPage );
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}).wrap("<li class='next'></li>").parent().appendTo(pager);
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handleCrop( 0 );
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}
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function handleCrop( page ) {
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curPage = page - 0;
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var s = num[ curPage ][0];
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var e = s + num[ curPage ][1];
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if ( !curPage ) prev.hide();
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else prev.show();
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if ( curPage == names.length - 1 ) next.hide();
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else next.show();
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$("li",pager)
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.removeClass("cur")
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.eq( curPage + 1 )
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.addClass("cur");
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rows
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.hide()
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.gt(s - 1).lt(e)
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.show()
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.end().end();
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if ( fn )
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fn.apply( pagedUI, [ s, e ] );
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return false;
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}
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});
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};
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