common.js 通用js

common.js

/**
 * common.js 通用js
 * charset: utf-8
 */

/**
 * $.ns ,为jq增加ns方法，用来自定义命名空间
 */
$.ns = function(name, obj){
	var nodes = name.split(".");
	var node = window;
	for (var i = 0; i < nodes.length; i ++) {
		var node_name = nodes[i];			
		if(typeof(node[node_name]) == 'undefined') {
			node[node_name] = (i == (nodes.length - 1)) ? obj : {};						
		}
		node = node[node_name];	
	}
	return node;			
};

// 时间戳格式化
$.ns('helper.date', function(format, timestamp){
		var date = new Date(parseInt(timestamp) * 1000);
		var o = {
			"M+" :date.getMonth() + 1, // month
			"d+" :date.getDate(), // day
			"h+" :date.getHours(), // hour
			"m+" :date.getMinutes(), // minute
			"s+" :date.getSeconds(), // second
			"q+" :Math.floor((date.getMonth() + 3) / 3), // quarter
			"S" :date.getMilliseconds()
		};	 
		if (/(y+)/.test(format)) {
			format = format.replace(RegExp.$1, (date.getFullYear() + "")
					.substr(4 - RegExp.$1.length));
		}	 
		for ( var k in o) {
			if (new RegExp("(" + k + ")").test(format)) {
				format = format.replace(RegExp.$1, RegExp.$1.length == 1 ? o[k]
						: ("00" + o[k]).substr(("" + o[k]).length));
			}
		}
		return format;
});

	// 分页
$.ns('helper.page', function(items_total, page_total, current_page, cb){
		var count_out = 3, count_in = 5;
		var n1 = 1;
		var n2 = Math.min(count_out, page_total);
		
		var n7 = Math.max(1, page_total - count_out + 1);
		var n8 = page_total;
		
		var n4 = Math.max(n2 + 1, current_page - count_in);
		var n5 = Math.min(n7 - 1, current_page + count_in);
		var use_mid = (n5 > n4);
		
		var n3 = parseInt((n2 + n4) / 2);
		var use_n3 = (use_mid && ((n4 - n2) > 1));
		
		var n6 = parseInt((n5 + n7) / 2);
		var use_n6 = (use_mid && ((n7 - n5) > 1));
		
		var links = {};
		var i = 0;
		
		for (i = n1; i <= n2; i ++) {
			links[i] = i;
		}
		
		if (use_n3) {
			links[n3] = '&hellip;';
		}
		
		for (i = n4; i <= n5; i ++) {
			links[i] = i;
		}
		
		if (use_n6) {
			links[n6] = '&hellip;';
		}
		
		for (i = n7; i <= n8; i ++) {
			links[i] = i;
		}
		
		cb = cb || 'page.logic.getlist';
		var html = '<li><a href="javascript:'+cb+'(1);">首页</a></li>';

		for (var idx in links){
			html = html + '<li' + (idx == current_page ? ' class="active" ' : '') + '><a href="javascript:'+cb+'('+idx+');">' + idx + '</a></li>';
		}
		
		html = html + '<li><a href="javascript:'+cb+'('+page_total+');">末页</a></li><li class="disabled"><span>共'+page_total+'页'+items_total+'条</span></li>';
		return items_total > 0 ? html : '';

	});