jquery.treeTable.js
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/**
* 树表组件
* @author benzhan (詹潮江)
* @version 1.4.2
* @lastUpdateDate 2011-09-03
* @mail zhanchaojiang@qq.com
*/
(function ($) {
// window.SITE_URL = window.SITE_URL || '';
// if (document.location.href.indexOf('http://') != 0) {
// var path = '../themes/';
// } else {
// var path = SITE_URL + '/themes/';
// }
$.fn.treeTable = function (opts) {
opts = $.extend({
path: '',
theme: 'default',
expandLevel: 1,
column: 0,
onSelect: function($treeTable, id){},
beforeExpand: function($treeTable, id){}
}, opts);
var $treeTable = this;
$treeTable.addClass('tree_table');
// //添加需要的样式
// if ($('head').find('#tree_table_' + opts.theme).length == 0) {
// $('head').append('<link id="tree_table_' + opts.theme + '" href="' + opts.path + 'themes/' + opts.theme + '/treeTable.css" rel="stylesheet" type="text/css" />');
// }
var css = {
'N' : opts.theme + '_node',
'AN' : opts.theme + '_active_node',
'O' : opts.theme + '_open',
'LO' : opts.theme + '_last_open',
'S' : opts.theme + '_shut',
'LS' : opts.theme + '_last_shut',
'HO' : opts.theme + '_hover_open',
'HS' : opts.theme + '_hover_shut',
'HLO' : opts.theme + '_hover_last_open',
'HLS' : opts.theme + '_hover_last_shut',
'L' : opts.theme + '_leaf',
'LL' : opts.theme + '_last_leaf',
'B' : opts.theme + '_blank',
'V' : opts.theme + '_vertline'
};
var pMap = {}, cMap = {};
var $trs = $treeTable.find('tr');
initRelation($trs, true);
$treeTable.click(function (event) {
var $target = $(event.target);
if ($target.attr('controller')) {
$target = $target.parents('tr[haschild]').find('[arrow]');
//判断是否是叶子节点
if ($target.attr('class').indexOf(css['AN']) == -1 && $target.attr('class').indexOf(css['N']) == -1) { return; }
var id = $target.parents('tr[haschild]')[0].id;
if (opts.onSelect && opts.onSelect($treeTable, id) === false) { return; }
}
if ($target.attr('arrow')) {
var className = $target.attr('class');
if (className == css['AN'] + ' ' + css['HLO'] || className == css['AN'] + ' ' + css['HO']) {
var id = $target.parents('tr[haschild]')[0].id;
$target.attr('class', css['AN'] + " " + (className.indexOf(css['HO']) != -1 ? css['HS'] : css['HLS']));
//关闭所有孩子的tr
shut(id);
return;
} else if (className == css['AN'] + ' ' + css['HLS'] || className == css['AN'] + ' ' + css['HS']) {
var id = $target.parents('tr')[0].id;
$target.attr('class', css['AN'] + " " + (className.indexOf(css['HS']) != -1 ? css['HO'] : css['HLO']));
opts.beforeExpand($treeTable, id);
//展开所有直属节点，根据图标展开子孙节点
open(id);
return;
}
}
});
$treeTable.mouseover(hoverActiveNode).mouseout(hoverActiveNode);
function hoverActiveNode(event) {
var $target = $(event.target);
if ($target.attr('controller')) {
$target = $target.parents('tr[haschild]').find('[arrow]');
}
if ($target.attr('arrow')) {
var className = $target.attr('class');
if (className && !className.indexOf(css['AN'])) {
var len = opts.theme.length + 1;
className = className.split(' ')[1].substr(len);
if (className.indexOf('hover_') === 0) {
className = opts.theme + '_' + className.substr(6);
} else {
className = opts.theme + '_hover_' + className;
}
$target.attr('class', css['AN'] + ' ' + className);
return;
}
}
}
/** 初始化节点关系 */
function initRelation($trs, hideLevel) {
//构造父子关系
$trs.each(function (i) {
var pId = $(this).attr('pId') || 0;
pMap[pId] || (pMap[pId] = []);
pMap[pId].push(this.id);
cMap[this.id] = pId;
//给这个tr增加类为了提高选择器的效率
$(this).addClass(pId);
}).find('[controller]').css('cursor', 'pointer');
//标识父节点是否有孩子、是否最后一个节点
$trs.each(function (i) {
if (!this.id) { return; }
var $tr = $(this);
pMap[this.id] && $tr.attr('hasChild', true);
var pArr = pMap[cMap[this.id]];
if (pArr[0] == this.id) {
$tr.attr('isFirstOne', true);
} else {
var prevId = 0;
for (var i = 0; i < pArr.length; i++) {
if (pArr[i] == this.id) { break; }
prevId = pArr[i];
}
$tr.attr('prevId', prevId);
}
pArr[pArr.length - 1] == this.id && $tr.attr('isLastOne', true);
var depth = getDepth(this.id);
$tr.attr('depth', depth);
//格式化节点
formatNode(this);
//判断是否要隐藏限制的层次
if (hideLevel) {
depth > opts.expandLevel && $tr.hide();
//判断是否小于深度，如果小于深度则要换成展开的图标
if ($tr.attr('hasChild') && $tr.attr('depth') < opts.expandLevel) {
var className = $tr.attr('isLastOne') ? css['LO'] : css['O'];
$tr.find('.' + css['AN']).attr('class', css['AN'] + ' ' + className);
}
}
});
//递归获取深度
function getDepth(id) {
if (cMap[id] == 0) { return 1; }
var $parentDepth = getDepth(cMap[id]);
return $parentDepth + 1;
}
}
//递归关闭所有的孩子
function shut(id) {
if (!pMap[id]) { return false; }
for (var i = 0; i < pMap[id].length; i++) {
shut(pMap[id][i]);
}
$('tr.' + id, $treeTable).hide();
}
//根据历史记录来展开节点
function open(id) {
$('tr.' + id, $treeTable).show();
if (!pMap[id]) { return false; }
for (var i = 0; i < pMap[id].length; i++) {
var cId = pMap[id][i];
if (pMap[cId]) {
var className = $('#' + cId, $treeTable).find('.' + css['AN']).attr('class');
//如果子节点是展开图表的，则需要展开此节点
(className == css['AN'] + ' ' + css['O'] || className == css['AN'] + ' ' + css['LO']) && open(cId);
}
}
}
function formatNode(tr) {
var $cur = $(tr);
var id = tr.id;
//-------------下面一大段都是获取$preSpan---------
if (cMap[id] == 0) {
//如果是顶级节点，则没有prev_sp
var $preSpan = $('<span class="prev_sp"></span>');
} else {
//先判断是否有上一个兄弟节点
if (!$cur.attr('isFirstOne')) {
var $preSpan = $('#' + $cur.attr('prevId'), $treeTable).children("td").eq(opts.column).find('.prev_sp').clone();
} else {
var $parent = $('#' + cMap[id], $treeTable);
//没有上一个兄弟节点，则使用父节点的prev_sp
var $preSpan = $parent.children("td").eq(opts.column).find('.prev_sp').clone();
//如果父亲后面没有兄弟，则直接加空白，若有则加竖线
if ($parent.attr('isLastOne')) {
$preSpan.append('<span class="' + css['N'] + ' ' + css['B'] + '"></span>');
} else {
$preSpan.append('<span class="' + css['N'] + ' ' + css['V'] + '"></span>');
}
}
}
//------------------------------------------------
if ($cur.attr('hasChild')) {
//如果有下一个节点，并且下一个节点的父亲与当前节点的父亲相同，则说明该节点不是最后一个节点
var className = $cur.attr('isLastOne') ? css['LS'] : css['S'];
className = css['AN'] + ' ' + className;
} else {
var className = css['N'] + ' ' + ($cur.attr('isLastOne') ? css['LL'] : css['L']);
}
var $td = $cur.children("td").eq(opts.column);
$td.prepend('<span arrow="true" class="' + className + '"></span>').prepend($preSpan);
};
$treeTable.addChilds = function(trsHtml) {
var $trs = $(trsHtml);
if (!$trs.length) { return false; }
var pId = $($trs[0]).attr('pId');
if (!pId) { return false; }
//插入到最后一个孩子后面，或者直接插在父节点后面
var insertId = pMap[pId] && pMap[pId][pMap[pId].length - 1] || pId;
$('#' + insertId, $treeTable).after($trs);
initRelation($trs);
};
return $treeTable;
};
})(jQuery);