jstree.unique.js
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/**
* ### Unique plugin
*
* Enforces that no nodes with the same name can coexist as siblings.
*/
/*globals jQuery, define, exports, require */
(function (factory) {
"use strict";
if (typeof define === 'function' && define.amd) {
define('jstree.unique', ['jquery','jstree'], factory);
}
else if(typeof exports === 'object') {
factory(require('jquery'), require('jstree'));
}
else {
factory(jQuery, jQuery.jstree);
}
}(function ($, jstree, undefined) {
"use strict";
if($.jstree.plugins.unique) { return; }
$.jstree.plugins.unique = function (options, parent) {
this.check = function (chk, obj, par, pos) {
if(parent.check.call(this, chk, obj, par, pos) === false) { return false; }
obj = obj && obj.id ? obj : this.get_node(obj);
par = par && par.id ? par : this.get_node(par);
if(!par || !par.children) { return true; }
var n = chk === "rename_node" ? pos : obj.text,
c = [],
m = this._model.data, i, j;
for(i = 0, j = par.children.length; i < j; i++) {
c.push(m[par.children[i]].text);
}
switch(chk) {
case "delete_node":
return true;
case "rename_node":
case "copy_node":
i = ($.inArray(n, c) === -1);
if(!i) {
this._data.core.last_error = { 'error' : 'check', 'plugin' : 'unique', 'id' : 'unique_01', 'reason' : 'Child with name ' + n + ' already exists. Preventing: ' + chk, 'data' : JSON.stringify({ 'chk' : chk, 'pos' : pos, 'obj' : obj && obj.id ? obj.id : false, 'par' : par && par.id ? par.id : false }) };
}
return i;
case "move_node":
i = (obj.parent === par.id || $.inArray(n, c) === -1);
if(!i) {
this._data.core.last_error = { 'error' : 'check', 'plugin' : 'unique', 'id' : 'unique_01', 'reason' : 'Child with name ' + n + ' already exists. Preventing: ' + chk, 'data' : JSON.stringify({ 'chk' : chk, 'pos' : pos, 'obj' : obj && obj.id ? obj.id : false, 'par' : par && par.id ? par.id : false }) };
}
return i;
}
return true;
};
};
// include the unique plugin by default
// $.jstree.defaults.plugins.push("unique");
}));