/*
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* author:mengly
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* date:2014-2-2,
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* todo:目前的格式比较接近于bootstrap，需要以后修改
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*
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*/
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(function($,window){
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$.fn.bootpag = function(options){
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var $owner = this,
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settings = $.extend({
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total: 0,
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page: 1,
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maxVisible: 10,
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leaps: true,
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href: 'javascript:void(0);',
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hrefVariable: '{{number}}',
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next: '>',
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prev: '<',
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callback:function(num){return false;}
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},
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$owner.settings || {},
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options || {});
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if(settings.total <= 0)
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return this;
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if(!settings.maxVisible){
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settings.maxVisible = settings.total;
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}
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$owner.settings = settings;
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function renderPage($bootpag, page){
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$bootpag.empty();
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$owner.trigger('page', page);
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create($bootpag,page);
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}
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function href(c){
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return settings.href.replace(settings.hrefVariable, c);
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}
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function getstart(total,max,page){
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if(page>total)
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return -1;
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if(total<2 || max<=2||total<=max)
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return 2;
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var tmv=max-2;
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var htmv=parseInt(tmv/2);
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if((page-1)<htmv)
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return 2;
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if((total-page)<htmv)
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return (total-tmv)>2?(total-tmv):2;
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return page-htmv;
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}
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return this.each(function(){
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var $bootpag, lp, me = $(this);
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p=[];
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if(settings.total<=1||settings.maxVisible<=1)
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return;
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var start=getstart(settings.total,settings.maxVisible,settings.page);
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// if(start<=1)
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// return;
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if(start<0)
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return;
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if(start<2)
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start=2;
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var total=settings.total;
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var maxVisible=settings.maxVisible;
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var page=settings.page;
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p.push('<a class="prev" rev="'+((page-1)>0?1:(page-1))+'" href="'+href(((page-1)>0?(page-2):0))+'">'+settings.prev+'</a>');
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p.push('<a class="1" rev="1" href="'+href(0)+'">'+1+'</a>');
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if(start-1>1)
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p.push('...');
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var i = start
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for (; i <=Math.min(start+settings.maxVisible-3,settings.total-1); i++) {
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p.push('<a class="1" rev="'+i+'" href="'+href(i-1)+'">'+i+'</a>');
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};
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if(total-i>0)
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p.push('...');
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p.push('<a class="1" rev="'+settings.total+'" href="'+href(settings.total-1)+'">'+settings.total+'</a>');
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p.push('<a class="next" rev="'+((page+1)>total?total:(page+1))+'" href="'+href(((page+1)>total?(page):total-1))+'">'+settings.next+'</a>');
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jQuery(p.join('')).appendTo(me);
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me.find('a[rev="'+page+'"]').addClass('current');
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me.on('click','a',function(){
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var me1=$(this);
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var callback=settings.callback;
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callback(me1.attr('rev'));
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});
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});
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}
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})(jQuery,window);
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