bootstrap treegrid 树 生成
原文：http://www.cnblogs.com/landeanfen/p/6776152.html
在该代码基础上做出修改，支持remote加载数据.
另外加上树生成，支持pid为非null 根节点数据
(function ($) {
'use strict';
var sprintf = function (str) {
var args = arguments,
flag = true,
i = 1;
str = str.replace(/%s/g, function () {
var arg = args[i++];
if (typeof arg === 'undefined') {
flag = false;
return '';
}
return arg;
});
return flag ? str : '';
};
var getFieldIndex = function (columns, field) {
var index = -1;
$.each(columns, function (i, column) {
if (column.field === field) {
index = i;
return false;
}
return true;
});
return index;
};
var calculateObjectValue = function (self, name, args, defaultValue) {
var func = name;
if (typeof name === 'string') {
var names = name.split('.');
if (names.length > 1) {
func = window;
$.each(names, function (i, f) {
func = func[f];
});
} else {
func = window[name];
}
}
if (typeof func === 'object') {
return func;
}
if (typeof func === 'function') {
return func.apply(self, args);
}
if (!func && typeof name === 'string' && sprintf.apply(this, [name].concat(args))) {
return sprintf.apply(this, [name].concat(args));
}
return defaultValue;
};
var getItemField = function (item, field) {
var value = item;
if (typeof field !== 'string' || item.hasOwnProperty(field)) {
return item[field];
}
var props = field.split('.');
for (var p in props) {
value = value[props[p]];
}
return value;
};
var getParent = function (node, source, field) {
var data = [];
var items = $.grep(source, function (item, index) {
return node.parentId == item[field];
});
$.each(items, function (index, item) {
data.splice(0, 0, item);
var children = getParent(item, source, field);
$.each(children, function (i, n) {
data.splice(0, 0, n);
});
});
return data;
};
var getNodeData = function (data,id) {
if(id==undefined)return undefined;
for(var i=0;i<data.length;i++){
var p = data[i];
if(p.id == id){
return p;
}
if(p.children&&p.children.length>0){
var v = getNodeData(p.children,id);
if(v)return v;
}
}
return undefined;
};
function initData(data){
var index = 0;
function a(data){
data.forEach(function(val,i){
if(val['hidden']==undefined)val.hidden = false;
val._index = index++;
if(val.children&&val.children.length>0){
val.expandAble = true;
initData(val.children);
}
});
}
a(data);
}
//调用bootstrapTable组件的构造器得到对象
var BootstrapTable = $.fn.bootstrapTable.Constructor,
_initData = BootstrapTable.prototype.initData,
_initPagination = BootstrapTable.prototype.initPagination,
_initBody = BootstrapTable.prototype.initBody;
//重写bootstrapTable的initData方法
BootstrapTable.prototype.initData = function () {
_initData.apply(this, Array.prototype.slice.apply(arguments));
if (this.options.treeView && this.data.length > 0) {
initData(this.getData());
}
};
BootstrapTable.prototype.loadNodeChild = function (pid) {
var nodeData = getNodeData(this.getData(),pid);
var $this = $(".tree-icon[data-id="+pid+"]");
var that = this;
$.ajax({
url:this.options.url,
data: {"id":pid},
dataType: "json",
type: "POST",
traditional: true,
success: function (data) {
if(data.rows.length>0){
nodeData.children = data.rows;
nodeData.expandAble=true;
initData(that.getData());
that.initSort();
that.initBody(true);
}
else{
nodeData.expandAble=false;
$this.removeClass(that.options.collapseIcon);
$this.unbind();
}
}
});
};
$.fn.bootstrapTable.methods.push('loadNodeChild');
//重写bootstrapTable的initPagination方法
BootstrapTable.prototype.initPagination = function () {
//调用“父类”的“虚方法”
_initPagination.apply(this, Array.prototype.slice.apply(arguments));
};
//重写bootstrapTable的initBody方法
BootstrapTable.prototype.initBody = function (fixedScroll) {
if(!this.options.treeView){
_initBody.apply(this, fixedScroll);
return ;
}
var that = this,
html = [],
indentSize=18,
data = this.getData();
this.trigger('pre-body', data);
this.$body = this.$el.find('tbody');
if (!this.$body.length) {
this.$body = $('<tbody></tbody>').appendTo(this.$el);
}
if (!this.options.pagination || this.options.sidePagination === 'server') {
this.pageFrom = 1;
this.pageTo = data.length;
}
data.forEach(function(val,index){
function createHtml(val,index,layerCount){
var key,
item = val,
style = {},
csses = [],
data_ = '',
attributes = {},
htmlAttributes = [];
if (item.hidden) return;
style = calculateObjectValue(that.options, that.options.rowStyle, [item, item._index], style);
if (style && style.css) {
for (key in style.css) {
csses.push(key + ': ' + style.css[key]);
}
}
attributes = calculateObjectValue(that.options,
that.options.rowAttributes, [item, item._index], attributes);
if (attributes) {
for (key in attributes) {
htmlAttributes.push(sprintf('%s="%s"', key, escapeHTML(attributes[key])));
}
}
if (item._data && !$.isEmptyObject(item._data)) {
$.each(item._data, function (k, v) {
if (k === 'index') {
return;
}
data_ += sprintf(' data-%s="%s"', k, v);
});
}
html.push('<tr',
sprintf(' %s', htmlAttributes.join(' ')),
sprintf(' id="%s"', $.isArray(item) ? undefined : item._id),
sprintf(' class="%s"', style.classes || ($.isArray(item) ? undefined : item._class)),
sprintf(' data-index="%s"', item._index),
sprintf(' data-id="%s"', item[that.options.treeId]),
sprintf(' data-uniqueid="%s"', item[that.options.uniqueId]),
sprintf('%s', data_),
'>'
);
if (that.options.cardView) {
html.push(sprintf('<td colspan="%s">', that.header.fields.length));
}
if (!that.options.cardView && that.options.detailView) {
html.push('<td>',
'<a class="detail-icon" href="javascript:">',
sprintf('<i class="%s %s"></i>', that.options.iconsPrefix, that.options.icons.detailOpen),
'</a>',
'</td>');
}
$.each(that.header.fields, function (j, field) {
var text = '',
value = getItemField(item, field),
type = '',
cellStyle = {},
id_ = '',
class_ = that.header.classes[j],
data_ = '',
rowspan_ = '',
title_ = '',
column = that.columns[getFieldIndex(that.columns, field)];
if (!column.visible) {
return;
}
style = sprintf('style="%s"', csses.concat(that.header.styles[j]).join('; '));
value = calculateObjectValue(column,
that.header.formatters[j], [value, item, item._index], value);
if (item['_' + field + '_id']) {
id_ = sprintf(' id="%s"', item['_' + field + '_id']);
}
if (item['_' + field + '_class']) {
class_ = sprintf(' class="%s"', item['_' + field + '_class']);
}
if (item['_' + field + '_rowspan']) {
rowspan_ = sprintf(' rowspan="%s"', item['_' + field + '_rowspan']);
}
if (item['_' + field + '_title']) {
title_ = sprintf(' title="%s"', item['_' + field + '_title']);
}
cellStyle = calculateObjectValue(that.header,
that.header.cellStyles[j], [value, item, item._index], cellStyle);
if (cellStyle.classes) {
class_ = sprintf(' class="%s"', cellStyle.classes);
}
if (cellStyle.css) {
var csses_ = [];
for (var key in cellStyle.css) {
csses_.push(key + ': ' + cellStyle.css[key]);
}
style = sprintf('style="%s"', csses_.concat(that.header.styles[j]).join('; '));
}
if (item['_' + field + '_data'] && !$.isEmptyObject(item['_' + field + '_data'])) {
$.each(item['_' + field + '_data'], function (k, v) {
if (k === 'index') {
return;
}
data_ += sprintf(' data-%s="%s"', k, v);
});
}
if (column.checkbox || column.radio) {
type = column.checkbox ? 'checkbox' : type;
type = column.radio ? 'radio' : type;
text = [that.options.cardView ?
'<div class="card-view">' : '<td class="bs-checkbox">',
'<input' +
sprintf(' data-index="%s"', item._index) +
sprintf(' name="%s"', that.options.selectItemName) +
sprintf(' type="%s"', type) +
sprintf(' value="%s"', item[that.options.idField]) +
sprintf(' checked="%s"', value === true ||
(value && value.checked) ? 'checked' : undefined) +
sprintf(' disabled="%s"', !column.checkboxEnabled ||
(value && value.disabled) ? 'disabled' : undefined) +
' />',
that.header.formatters[j] && typeof value === 'string' ? value : '',
that.options.cardView ? '</div>' : '</td>'
].join('');
item[that.header.stateField] = value === true || (value && value.checked);
} else {
value = typeof value === 'undefined' || value === null ?
that.options.undefinedText : value;
var indent,icon;
if (that.options.treeView && column.field == that.options.treeField) {
indent = sprintf('<span style="margin-left: %spx;"></span>', layerCount * indentSize);
var expandFlag = item.children.length > 0?!item.children[0].hidden:false;
icon = sprintf('<span class="tree-icon %s" data-id="%s" style="cursor: pointer; margin: 0px 5px;"></span>',
item.expandAble?(expandFlag ? that.options.expandIcon : that.options.collapseIcon):"",item.id);
}
text = that.options.cardView ? ['<div class="card-view">',
that.options.showHeader ? sprintf('<span class="title" %s>%s</span>', style,
getPropertyFromOther(that.columns, 'field', 'title', field)) : '',
sprintf('<span class="value">%s</span>', value),
'</div>'
].join('') : [sprintf('<td%s %s %s %s %s %s>', id_, class_, style, data_, rowspan_, title_),
indent,
icon,
value,
'</td>'
].join('');
if (that.options.cardView && that.options.smartDisplay && value === '') {
text = '';
}
}
html.push(text);
});
if (that.options.cardView) {
html.push('</td>');
}
html.push('</tr>');
if(val.children&&val.children.length>0){
val.expandAble =true;
val.children.forEach(function(cVal,cIndex){
createHtml(cVal,cIndex,layerCount+1);
})
}
}
createHtml(val,index,0);
});
if (!html.length) {
html.push('<tr class="no-records-found">',
sprintf('<td colspan="%s">%s</td>',
this.$header.find('th').length, this.options.formatNoMatches()),
'</tr>');
}
this.$body.html(html.join(''));
if (!fixedScroll) {
this.scrollTo(0);
}
this.$body.find('> tr[data-index] > td').off('click dblclick').on('click dblclick', function (e) {
var $td = $(this),
$tr = $td.parent(),
item = getNodeData(that.data,$tr.attr('data-id')),
index = $td[0].cellIndex,
field = that.header.fields[that.options.detailView && !that.options.cardView ? index - 1 : index],
column = that.columns[getFieldIndex(that.columns, field)],
value = getItemField(item, field);
if ($td.find('.detail-icon').length) {
return;
}
that.trigger(e.type === 'click' ? 'click-cell' : 'dbl-click-cell', field, value, item, $td);
that.trigger(e.type === 'click' ? 'click-row' : 'dbl-click-row', item, $tr);
if (e.type === 'click' && that.options.clickToSelect && column.clickToSelect) {
var $selectItem = $tr.find(sprintf('[name="%s"]', that.options.selectItemName));
if ($selectItem.length) {
$selectItem[0].click();
}
}
});
this.$body.find('> tr[data-index] > td > .detail-icon').off('click').on('click', function () {
var $this = $(this),
$tr = $this.parent().parent(),
index = $tr.data('index'),
row = data[index];
if ($tr.next().is('tr.detail-view')) {
$this.find('i').attr('class', sprintf('%s %s', that.options.iconsPrefix, that.options.icons.detailOpen));
$tr.next().remove();
that.trigger('collapse-row', index, row);
} else {
$this.find('i').attr('class', sprintf('%s %s', that.options.iconsPrefix, that.options.icons.detailClose));
$tr.after(sprintf('<tr class="detail-view"><td colspan="%s">%s</td></tr>',
$tr.find('td').length, calculateObjectValue(that.options,
that.options.detailFormatter, [index, row], '')));
that.trigger('expand-row', index, row, $tr.next().find('td'));
}
that.resetView();
});
this.$body.find('> tr[data-index] > td > .tree-icon').off('click').on('click', function (e) {
e.stopPropagation();
var $this = $(this),
$tr = $this.parent().parent(),
index = $tr.data('index'),
icon = $(this);
var id = $this.attr("data-id");
var nodeData = getNodeData(that.getData(),id);
if(nodeData.children.length>0){
$.each(nodeData.children, function (i, c) {
c.hidden = icon.hasClass(that.options.expandIcon);
});
if (icon.hasClass(that.options.expandIcon)) {
icon.removeClass(that.options.expandIcon).addClass(that.options.collapseIcon);
} else {
icon.removeClass(that.options.collapseIcon).addClass(that.options.expandIcon);
}
that.options.data = that.data;
that.initBody(true);
}
else{
that.loadNodeChild(id);
}
});
this.$selectItem = this.$body.find(sprintf('[name="%s"]', this.options.selectItemName));
this.$selectItem.off('click').on('click', function (event) {
event.stopImmediatePropagation();
var $this = $(this),
checked = $this.prop('checked'),
row = that.data[$this.data('index')];
if (that.options.maintainSelected && $(this).is(':radio')) {
$.each(that.options.data, function (i, row) {
row[that.header.stateField] = false;
});
}
row[that.header.stateField] = checked;
if (that.options.singleSelect) {
that.$selectItem.not(this).each(function () {
that.data[$(this).data('index')][that.header.stateField] = false;
});
that.$selectItem.filter(':checked').not(this).prop('checked', false);
}
that.updateSelected();
that.trigger(checked ? 'check' : 'uncheck', row, $this);
});
$.each(this.header.events, function (i, events) {
if (!events) {
return;
}
if (typeof events === 'string') {
events = calculateObjectValue(null, events);
}
var field = that.header.fields[i],
fieldIndex = $.inArray(field, that.getVisibleFields());
if (that.options.detailView && !that.options.cardView) {
fieldIndex += 1;
}
for (var key in events) {
that.$body.find('tr').each(function () {
var $tr = $(this),
$td = $tr.find(that.options.cardView ? '.card-view' : 'td').eq(fieldIndex),
index = key.indexOf(' '),
name = key.substring(0, index),
el = key.substring(index + 1),
func = events[key];
$td.find(el).off(name).on(name, function (e) {
var index = $tr.data('index'),
row = that.data[index],
value = row[field];
func.apply(this, [e, value, row, index]);
});
});
}
});
this.updateSelected();
this.resetView();
this.trigger('post-body');
};
//给组件增加默认参数列表
$.extend($.fn.bootstrapTable.defaults, {
treeView: false,//treeView视图
treeField: "id",//treeView视图字段
treeId: "id",
treeRootLevel: 0,//根节点序号
treeCollapseAll: false,//是否全部展开
collapseIcon: "glyphicon glyphicon-chevron-right",//折叠样式
expandIcon: "glyphicon glyphicon-chevron-down"//展开样式
});
})(jQuery);
data数据格式为：
[{id:1,pid:null,children[],expandAble:true}]
bt.bootstrapTable('loadNodeChild',pid); //加载子节点数据
树生成代码
public interface ITree {
Object getPid();
Object getId();
<T>List<T> getChildren();
void setChildren(List children);
}
public class TreeUtil {
public static <T>List<T> assembleTree(List<ITree> list){
List<ITree> resultList = new LinkedList<>();
Map<Object,List<ITree>> map = new HashMap<>((int)Math.ceil(list.size()/0.75)+1);
ArrayList<Object> nodeIds = new ArrayList<>();
LinkedList<Object> existNodeId = new LinkedList<>();
list.stream().forEach(p->{
List<ITree> child = map.get(p.getId());
if(child==null){
child = p.getChildren();
map.put(p.getId(),child);
}
if(p.getChildren().size()==0&& CollectionUtils.isNotEmpty(child)){
p.setChildren(child);
}
nodeIds.remove(p.getId());
existNodeId.add(p.getId());
if(p.getPid()==null){
resultList.add(p);
}
else{
List<ITree> parentChild = map.get(p.getPid());
if(parentChild==null){
parentChild = new LinkedList<>();
map.put(p.getPid(), parentChild);
if(!existNodeId.contains(p.getPid())){
nodeIds.add(p.getPid());
}
}
parentChild.add(p);
}
});
nodeIds.forEach(n->{
List<ITree> noParentChild = map.get(n);
resultList.addAll(noParentChild);
});
return (List<T>)resultList;
}
}
转载于:https://my.oschina.net/u/852445/blog/1560600