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JavaScript

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/*
* 功能依赖bootstrap-table实现treegrid参照landeanfen例子做了部分修改优化
* 作者lds2013@163.com
* 日期2017年10月5日
* 修改2018年4月20日
* 内容1、支持自定义收缩、展开图标
* 2、支持自定义父级ID传入默认ParentId
* 3、父级ID最顶层改为0
* 4、修改最后子级前的小图标
* 5、支持展开、收缩事件
* 6、支持定义是否层叠选中状态(选中父级,子级全部选中)的开关;
*用法: $('#tb').bootstrapTable({
method: 'post',
url: '/HR/HrDept/GetList',
singleSelect: true,//单行选择
clickToSelect: true,//点击行时自动选择
striped: true,//是否显示行间隔色
treeView: true,//是否显示树形视图
treeId: "DeptID",//定义关键字段来标识树节点
treeField: "DeptName",//定义树节点字段
treeParentId: "MasterID", //定义父级ID字段
treeRootLevel: 1,//树根的级别
treeCollapseAll: false,//是否全部折叠,默认折叠
uniqueId: "DeptID", //每一行的唯一标识,一般为主键列
columns:
[
{ field: 'ck', checkbox: true },
{ field: 'DeptID', title: '机构ID'},
{ field: 'MasterID', title: '上级ID', visible: false },
{ field: 'DeptName', title: '机构名称' }
]
});
* 注意事项:暂无
*
*/
(function ($) {
'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 escapeHTML = function (text) {
if (typeof text === 'string') {
return text
.replace(/&/g, '&')
.replace(/</g, '&lt;')
.replace(/>/g, '&gt;')
.replace(/"/g, '&quot;')
.replace(/'/g, '&#039;')
.replace(/`/g, '&#x60;');
}
return text;
};
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 (parentId, node, source, field) {
var data = [];
var items = $.grep(source, function (item, index) {
for (var i in item) {
if (i == parentId) {
return item[i] == node[field];
}
}
});
$.each(items, function (index, item) {
data.splice(0, 0, item);
var child = getParent(item, source, field);
$.each(child, function (i, n) {
data.splice(0, 0, n);
});
});
return data;
};
var getChild = function (parentId, node, source, field) {
var items = $.grep(source, function (item, index) {
for (var i in item) {
if (i == parentId) {
return item[i] == node[field];
}
}
});
return items;
};
var getAllChild = function (parentId, node, source, field) {
var data = [];
var g = function (child) {
$.each(child, function (i, n) {
data.push(n);
var subChild = getChild(parentId, n, source, field);
if (subChild != null && subChild.length > 0) {
g(subChild);
}
});
}
var child = getChild(parentId, node, source, field);
g(child);
return 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;
//重写bootstrapTable的initData方法
BootstrapTable.prototype.initData = function () {
_initData.apply(this, Array.prototype.slice.apply(arguments));
var that = this;
//初始化数据添加level,isLast 属性
if (that.options.treeView && this.data.length > 0) {
var rows = [], levelStep = 1;
var roots = $.grep(this.data, function (row, index) {
for (var i in row) {
if (i == that.options.treeParentId) {
return row[i] == 0;
}
}
});
var g = function (child) {
var childLevel = that.options.treeRootLevel + levelStep;
$.each(child, function (i, n) {
n.level = childLevel;
if (that.options.treeCollapseAll) {
n.hidden = true;
}
var subChild = getChild(that.options.treeParentId, n, that.data, that.options.treeId);
if (subChild == null || subChild.length == 0) {
n.isLast = true;
}
rows.push(n);
if (subChild != null && subChild.length > 0) {
levelStep++;
g(subChild);
} else {
levelStep = 1;
}
});
}
$.each(roots, function (index, item) {
item.level = that.options.treeRootLevel;
var child = getChild(that.options.treeParentId, item, that.data, that.options.treeId);
if (child == null || child.length == 0) {
item.isLast = true;
}
rows.push(item);
g(child);
});
that.options.data = that.data = rows;
}
};
//重写bootstrapTable的initPagination方法
BootstrapTable.prototype.initPagination = function () {
//理论情况下treegrid是不支持分页的所以默认分页参数为false
if (this.options.treeView) {
//this.options.pagination = false;
}
//调用“父类”的“虚方法”
_initPagination.apply(this, Array.prototype.slice.apply(arguments));
};
//重写bootstrapTable的initRow方法
BootstrapTable.prototype.initRow = function (item, i, data, parentDom) {
var that = this,
key,
html = [],
style = {},
csses = [],
data_ = '',
attributes = {},
htmlAttributes = [];
if ($.inArray(item, this.hiddenRows) > -1) {
return;
}
style = calculateObjectValue(this.options, this.options.rowStyle, [item, i], style);
if (style && style.css) {
for (key in style.css) {
csses.push(key + ': ' + style.css[key]);
}
}
attributes = calculateObjectValue(this.options,
this.options.rowAttributes, [item, i], 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) {
// ignore data-index
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"', i),
sprintf(' data-uniqueid="%s"', item[this.options.uniqueId]),
sprintf('%s', data_),
'>'
);
if (this.options.cardView) {
html.push(sprintf('<td colspan="%s"><div class="card-views">', this.header.fields.length));
}
if (!this.options.cardView && this.options.detailView) {
html.push('<td>',
'<a class="detail-icon" href="#">',
sprintf('<i class="%s %s"></i>', this.options.iconsPrefix, this.options.icons.detailOpen),
'</a>',
'</td>');
}
$.each(this.header.fields, function (j, field) {
var text = '',
value_ = getItemField(item, field, that.options.escape),
value = '',
type = '',
cellStyle = {},
id_ = '',
class_ = that.header.classes[j],
data_ = '',
rowspan_ = '',
colspan_ = '',
title_ = '',
column = that.columns[j];
if (that.fromHtml && typeof value_ === 'undefined') {
return;
}
if (!column.visible) {
return;
}
if (that.options.cardView && (!column.cardVisible)) {
return;
}
if (column.escape) {
value_ = escapeHTML(value_);
}
style = sprintf('style="%s"', csses.concat(that.header.styles[j]).join('; '));
// handle td's id and class
if (item['_' + field + '_id']) {
id_ = sprintf(' id="%s"', item['_' + field + '_id']);
}
if (item['_' + field + '_class']) {
class_ = sprintf(' class="%s"', item['_' + field + '_class']);
}
if (item['_' + field + '_rowspan']) {
rowspan_ = sprintf(' rowspan="%s"', item['_' + field + '_rowspan']);
}
if (item['_' + field + '_colspan']) {
colspan_ = sprintf(' colspan="%s"', item['_' + field + '_colspan']);
}
if (item['_' + field + '_title']) {
title_ = sprintf(' title="%s"', item['_' + field + '_title']);
}
cellStyle = calculateObjectValue(that.header,
that.header.cellStyles[j], [value_, item, i, field], cellStyle);
if (cellStyle.classes) {
class_ = sprintf(' class="%s"', cellStyle.classes);
}
if (cellStyle.css) {
var csses_ = [];
for (var key in cellStyle.css) {
csses_.push(key + ': ' + cellStyle.css[key]);
}
style = sprintf('style="%s"', csses_.concat(that.header.styles[j]).join('; '));
}
value = calculateObjectValue(column,
that.header.formatters[j], [value_, item, i], value_);
if (item['_' + field + '_data'] && !$.isEmptyObject(item['_' + field + '_data'])) {
$.each(item['_' + field + '_data'], function (k, v) {
// ignore data-index
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 = [sprintf(that.options.cardView ?
'<div class="card-view %s">' : '<td class="bs-checkbox %s">', column['class'] || ''),
'<input' +
sprintf(' data-index="%s"', i) +
sprintf(' name="%s"', that.options.selectItemName) +
sprintf(' type="%s"', type) +
sprintf(' value="%s"', item[that.options.idField]) +
sprintf(' checked="%s"', value === true ||
(value_ || value && value.checked) ||
(item && item.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;
//渲染tree展开图标下面text中添加了indent和icon。
var indent, icon;
if (that.options.treeView && column.field == that.options.treeField) {
var indent = item.level == that.options.treeRootLevel ? '' : sprintf('<span style="margin-left: %spx;"></span>', (item.level - that.options.treeRootLevel) * 15);
var child = $.grep(data, function (d, i) {
for (var i in d) {
if (i == that.options.treeParentId) {
return d[i] == item[that.options.treeId] && !d.hidden;
}
}
});
icon = sprintf('<span class="tree-icon %s" style="cursor: pointer; margin: 0px 5px;"></span>', child.length > 0 ? that.options.expandIcon : that.options.collapseIcon);
if (item.isLast) {
icon = sprintf('<span class="tree-icon %s" style="cursor: pointer; margin: 0px 5px;"></span>', that.options.lastIcon);
}
}
//end
text = that.options.cardView ? ['<div class="card-view">',
that.options.showHeader ? sprintf('<span class="title" %s>%s</span>', style,
getPropertyFromOther(that.columns, 'field', 'title', field)) : '',
sprintf('<span class="value">%s</span>', value),
'</div>'
].join('') : [sprintf('<td%s %s %s %s %s %s %s>',
id_, class_, style, data_, rowspan_, colspan_, title_),
indent, icon,
value,
'</td>'
].join('');
// Hide empty data on Card view when smartDisplay is set to true.
if (that.options.cardView && that.options.smartDisplay && value === '') {
// Should set a placeholder for event binding correct fieldIndex
text = '<div class="card-view"></div>';
}
}
html.push(text);
});
if (this.options.cardView) {
html.push('</div></td>');
}
html.push('</tr>');
return html.join(' ');
};
//重写bootstrapTable的initBody方法
BootstrapTable.prototype.initBody = function (fixedScroll) {
var that = this,
html = [],
data = this.getData();
this.trigger('pre-body', data);
this.$body = this.$el.find('>tbody');
if (!this.$body.length) {
this.$body = $('<tbody></tbody>').appendTo(this.$el);
}
//Fix #389 Bootstrap-table-flatJSON is not working
if (!this.options.pagination || this.options.sidePagination === 'server') {
this.pageFrom = 1;
this.pageTo = data.length;
}
var trFragments = $(document.createDocumentFragment());
var hasTr;
for (var i = this.pageFrom - 1; i < this.pageTo; i++) {
var item = data[i];
if (item.hidden) continue;//hidden属性,当前行不渲染
var tr = this.initRow(item, i, data, trFragments);
hasTr = hasTr || !!tr;
if (tr && tr !== true) {
trFragments.append(tr);
}
}
// show no records
if (!hasTr) {
trFragments.append('<tr class="no-records-found">' +
sprintf('<td colspan="%s">%s</td>',
this.$header.find('th').length,
this.options.formatNoMatches()) +
'</tr>');
}
this.$body.html(trFragments);
if (!fixedScroll) {
this.scrollTo(0);
}
// click to select by column
this.$body.find('> tr[data-index] > td').off('click dblclick').on('click dblclick', function (e) {
var $td = $(this),
$tr = $td.parent(),
item = that.data[$tr.data('index')],
index = $td[0].cellIndex,
fields = that.getVisibleFields(),
field = fields[that.options.detailView && !that.options.cardView ? index - 1 : index],
column = that.columns[getFieldIndex(that.columns, field)],
value = getItemField(item, field, that.options.escape);
if ($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, field);
// if click to select - then trigger the checkbox/radio click
if (e.type === 'click' && that.options.clickToSelect && column.clickToSelect) {
var $selectItem = $tr.find(sprintf('[name="%s"]', that.options.selectItemName));
if ($selectItem.length) {
//修复先勾选再收缩父级然后再勾选另一个选项导致原收缩项里还是保持选中状态最终导致获取选中项的bug
//解决思路:先把已选中的项取消,最后再选中点击的项
$.each(that.data, function (index, item) {
if (item.ck != undefined && item.ck == true) {
item.ck = false;
}
});
$selectItem[0].click(); // #144: .trigger('click') bug
}
}
});
this.$body.find('> tr[data-index] > td > .detail-icon').off('click').on('click', function () {
var $this = $(this),
$tr = $this.parent().parent(),
index = $tr.data('index'),
row = data[index]; // Fix #980 Detail view, when searching, returns wrong row
// remove and update
if ($tr.next().is('tr.detail-view')) {
$this.find('i').attr('class', sprintf('%s %s', that.options.iconsPrefix, that.options.icons.detailOpen));
that.trigger('collapse-row', index, row);
$tr.next().remove();
} 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"></td></tr>', $tr.find('td').length));
var $element = $tr.next().find('td');
var content = calculateObjectValue(that.options, that.options.detailFormatter, [index, row, $element], '');
if ($element.length === 1) {
$element.append(content);
}
that.trigger('expand-row', index, row, $element);
}
that.resetView();
return false;
});
//treeicon点击事件
this.$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'),
row = data[index];
var icon = $(this);
if (icon.hasClass(that.options.expandIcon)) {
//展开状态
icon.removeClass(that.options.expandIcon).addClass(that.options.collapseIcon);
var child = getAllChild(that.options.treeParentId, data[index], data, that.options.treeId);
$.each(child, function (i, c) {
$.each(that.data, function (index, item) {
if (item[that.options.treeId] == c[that.options.treeId]) {
item.hidden = true;
return;
}
});
});
} else {
icon.removeClass(that.options.collapseIcon).addClass(that.options.expandIcon);
var child = getChild(that.options.treeParentId, data[index], data, that.options.treeId);
$.each(child, function (i, c) {
$.each(that.data, function (index, item) {
if (item[that.options.treeId] == c[that.options.treeId]) {
item.hidden = false;
return;
}
});
});
}
that.options.data = that.data;
that.initBody(true);
});
//end
this.$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);
}
//层叠选中状态(选中父级,子级全部选中)
if (!that.options.singleSelect && that.options.cascadeCheck) {
var child = getAllChild(that.options.treeParentId, row, that.options.data, that.options.treeId);
$.each(child, function (i, c) {
$.each(that.data, function (index, item) {
if (item[that.options.treeId] == c[that.options.treeId]) {
item.checked = checked ? true : false;
return;
}
});
});
}
that.options.data = that.data;
that.initBody(true);
that.updateSelected();
that.trigger(checked ? 'check' : 'uncheck', row, $this);
});
$.each(this.header.events, function (i, events) {
if (!events) {
return;
}
// fix bug, if events is defined with namespace
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:not(.no-records-found)').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', data);
};
//展开所有树节点
BootstrapTable.prototype.expandAllTree = function () {
var that = this;
var roots = $.grep(this.data, function (row, index) {
for (var i in row) {
if (i == parentId) {
return row[i] == 0;
}
}
});
$.each(roots, function (index, item) {
var child = getAllChild(that.options.treeParentId, item, that.options.data, that.options.treeId);
$.each(child, function (i, n) {
n.hidden = false;
});
});
that.initBody(true);
}
//折叠所有树节点
BootstrapTable.prototype.collapseAllTree = function () {
var that = this;
var roots = $.grep(this.data, function (row, index) {
for (var i in row) {
if (i == parentId) {
return row[i] == 0;
}
}
});
$.each(roots, function (index, item) {
var child = getAllChild(that.options.treeParentId, item, that.options.data, that.options.treeId);
$.each(child, function (i, n) {
n.hidden = true;
});
});
that.initBody(true);
}
//给组件增加默认参数列表
$.extend($.fn.bootstrapTable.defaults, {
treeView: false,//treeView视图
treeId: "id",
treeField: "name",//treeView视图定义树节点字段
treeParentId: "ParentId",
treeRootLevel: 1,//根节点序号
treeCollapseAll: true,//是否全部折叠,默认折叠
cascadeCheck: true,//是否层叠选中状态(选中父级,子级全部选中)
collapseIcon: "glyphicon glyphicon-plus",//折叠样式
expandIcon: "glyphicon glyphicon-minus",//展开样式
lastIcon: "glyphicon glyphicon-hand-right"//叶子节点样式
});
$.fn.bootstrapTable.methods.push('expandAllTree', 'collapseAllTree');
})(jQuery);