Bootstrap风格的zTree右键菜单
HTML：
专注于为中小企业提供成都网站制作、成都网站设计服务,电脑端+手机端+微信端的三站合一,更高效的管理,为中小企业信州免费做网站提供优质的服务。我们立足成都，凝聚了一批互联网行业人才，有力地推动了超过千家企业的稳健成长，帮助中小企业通过网站建设实现规模扩充和转变。
<%-- 右键菜单 --%><%-- 层级 0 --%> <%-- 层级 1 --%> <%-- 层级 2 --%>
CSS：
/* 右键菜单 - start */
.dropdown-menu .dropdown-menu {
position: absolute;
top: -9px;
left: 100%;
}
.dropdown-menu li {
position: relative;
}
.dropdown-menu li.hasChildren:before {
content: '';
position: absolute;
top: 50%;
right: 8px;
width: 0;
height: 0;
margin-top: -5px;
border-style: solid;
border-color: transparent transparent transparent rgba(0, 0, 0, 0.5);
border-width: 5px 0 5px 5px;
pointer-events: none;
}
.dropdown-menu li.hasChildren:hover > .dropdown-menu {
display: block;
}
/* 右键菜单 - end */JS：
/* 以下为右键菜单插件（Bootstrap风格） */
;(function ($) {
'use strict';
/* CONTEXTMENU CLASS DEFINITION
* ============================ */
var toggle = '[data-toggle="context"]';
var ContextMenu = function (element, options) {
this.$element = $(element);
this.before = options.before || this.before;
this.onItem = options.onItem || this.onItem;
this.scopes = options.scopes || null;
if (options.target) {
this.$element.data('target', options.target);
}
this.listen();
};
ContextMenu.prototype = {
constructor: ContextMenu
, show: function (e) {
var $menu
, evt
, tp
, items
, relatedTarget = {relatedTarget: this, target: e.currentTarget};
if (this.isDisabled()) return;
this.closemenu();
if (this.before.call(this, e, $(e.currentTarget)) === false) return;
$menu = this.getMenu();
$menu.trigger(evt = $.Event('show.bs.context', relatedTarget));
tp = this.getPosition(e, $menu);
items = 'li:not(.divider)';
$menu.attr('style', '')
.css(tp)
.addClass('open')
.on('click.context.data-api', items, $.proxy(this.onItem, this, $(e.currentTarget)))
.trigger('shown.bs.context', relatedTarget);
// Delegating the `closemenu` only on the currently opened menu.
// This prevents other opened menus from closing.
$('html')
.on('click.context.data-api', $menu.selector, $.proxy(this.closemenu, this));
return false;
}
, closemenu: function (e) {
var $menu
, evt
, items
, relatedTarget;
$menu = this.getMenu();
if (!$menu.hasClass('open')) return;
relatedTarget = {relatedTarget: this};
$menu.trigger(evt = $.Event('hide.bs.context', relatedTarget));
items = 'li:not(.divider)';
$menu.removeClass('open')
.off('click.context.data-api', items)
.trigger('hidden.bs.context', relatedTarget);
$('html')
.off('click.context.data-api', $menu.selector);
// Don't propagate click event so other currently
// opened menus won't close.
if (e) {
e.stopPropagation();
}
}
, keydown: function (e) {
if (e.which == 27) this.closemenu(e);
}
, before: function (e) {
return true;
}
, onItem: function (e) {
return true;
}
, listen: function () {
this.$element.on('contextmenu.context.data-api', this.scopes, $.proxy(this.show, this));
$('html').on('click.context.data-api', $.proxy(this.closemenu, this));
$('html').on('keydown.context.data-api', $.proxy(this.keydown, this));
}
, destroy: function () {
this.$element.off('.context.data-api').removeData('context');
$('html').off('.context.data-api');
}
, isDisabled: function () {
return this.$element.hasClass('disabled') ||
this.$element.attr('disabled');
}
, getMenu: function () {
var selector = this.$element.data('target')
, $menu;
if (!selector) {
selector = this.$element.attr('href');
selector = selector && selector.replace(/.*(?=#[^\s]*$)/, ''); //strip for ie7
}
$menu = $(selector);
return $menu && $menu.length ? $menu : this.$element.find(selector);
}
, getPosition: function (e, $menu) {
var mouseX = e.clientX
, mouseY = e.clientY
, boundsX = $(window).width()
, boundsY = $(window).height()
, menuWidth = $menu.find('.dropdown-menu').outerWidth()
, menuHeight = $menu.find('.dropdown-menu').outerHeight()
, tp = {"position": "absolute", "z-index": 9999}
, Y, X, parentOffset;
if (mouseY + menuHeight > boundsY) {
Y = {"top": mouseY - menuHeight + $(window).scrollTop()};
} else {
Y = {"top": mouseY + $(window).scrollTop()};
}
if ((mouseX + menuWidth > boundsX) && ((mouseX - menuWidth) > 0)) {
X = {"left": mouseX - menuWidth + $(window).scrollLeft()};
} else {
X = {"left": mouseX + $(window).scrollLeft()};
}
// If context-menu's parent is positioned using absolute or relative positioning,
// the calculated mouse position will be incorrect.
// Adjust the position of the menu by its offset parent position.
parentOffset = $menu.offsetParent().offset();
X.left = X.left - parentOffset.left;
Y.top = Y.top - parentOffset.top;
return $.extend(tp, Y, X);
}
};
/* CONTEXT MENU PLUGIN DEFINITION
* ========================== */
$.fn.contextmenu = function (option, e) {
return this.each(function () {
var $this = $(this)
, data = $this.data('context')
, options = (typeof option == 'object') && option;
if (!data) $this.data('context', (data = new ContextMenu($this, options)));
if (typeof option == 'string') data[option].call(data, e);
});
};
$.fn.contextmenu.Constructor = ContextMenu;
/* APPLY TO STANDARD CONTEXT MENU ELEMENTS
* =================================== */
$(document)
.on('contextmenu.context.data-api', function () {
$(toggle).each(function () {
var data = $(this).data('context');
if (!data) return;
data.closemenu();
});
})
.on('contextmenu.context.data-api', toggle, function (e) {
$(this).contextmenu('show', e);
e.preventDefault();
e.stopPropagation();
});
}(jQuery));
/* 以下方法是通过上面的js插件封装的方法 */
/*
parentNode（zTree容器 || 指定的节点）
*/
function initzTreeRightMenu(parentNode) {
//树形菜单右击事件
$('li, a', $(parentNode)).contextmenu({
target: '#zTreeRightMenuContainer', //此设置项是zTree的容器
before: function (e, element, target) {
//当前右击节点ID
var selectedId = element[0].tagName == 'LI' ? element.attr('id') : element.parent().attr('id');
//根据节点ID获取当前节点详细信息
curSelectNode = zTreeObj.getNodeByTId(selectedId);
//当前节点的层级
var level = curSelectNode.level;
level = 0;
//选中当前右击节点
zTreeObj.selectNode(curSelectNode);
//根据当前节点层级显示相应的菜单
$('#zTreeRightMenuContainer ul.dropdown-menu[level="' + level + '"]').removeClass('hide').siblings().addClass('hide');
},
onItem: function (context, e) {
var action = $(e.target).attr('action');
this.closemenu();
if (action) {
zTreeRightMenuFuns[action]();
}
}
});
}步骤：
1、引入zTree相关js、css文件（以我自己的项目为例：jquery.ztree.all-3.5.min.js，zTreeStyle.css）；
2、将上面给出的右键菜单插件另存为js文件引入页面（以我自己的项目为例：bsContextmenu.js）
3、在页面初始化zTree之后，调用上面的方法：initzTreeRightMenu('#schemaMgrTree'); // ‘#schemaMgrTree' 是我自己项目的zTree容器ID
备注：
1、假如zTree中有异步载入的节点（以我自己项目为例：zTree中有部分节点是展开了父节点之后才加载的，像这种情况则需要在 zTree 的 onExpandFun 里面绑定当前节点的子节点）
function onExpandFun(event, treeId, treeNode) {
/* 展开当前节点执行的代码.... *///绑定当前展开节点的子节点右击事件
initzTreeRightMenu('#' + treeNode.tId); //treeNode.tId 是当前展开节点的ID
}以上所述是小编给大家介绍的Bootstrap风格的zTree右键菜单，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对创新互联网站的支持！
当前标题：Bootstrap风格的zTree右键菜单
文章URL：http://shouzuofang.com/article/pgpegc.html