mirror of
https://github.com/jellyfin/jellyfin-web
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100 lines
No EOL
3.5 KiB
JavaScript
100 lines
No EOL
3.5 KiB
JavaScript
/**
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* ### Massload plugin
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*
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* Adds massload functionality to jsTree, so that multiple nodes can be loaded in a single request (only useful with lazy loading).
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*/
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/*globals jQuery, define, exports, require, document */
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(function (factory) {
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"use strict";
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if (typeof define === 'function' && define.amd) {
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define('jstree.massload', ['jquery','jstree'], factory);
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}
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else if(typeof exports === 'object') {
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factory(require('jquery'), require('jstree'));
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}
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else {
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factory(jQuery, jQuery.jstree);
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}
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}(function ($, jstree, undefined) {
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"use strict";
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if($.jstree.plugins.massload) { return; }
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/**
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* massload configuration
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*
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* It is possible to set this to a standard jQuery-like AJAX config.
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* In addition to the standard jQuery ajax options here you can supply functions for `data` and `url`, the functions will be run in the current instance's scope and a param will be passed indicating which node IDs need to be loaded, the return value of those functions will be used.
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*
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* You can also set this to a function, that function will receive the node IDs being loaded as argument and a second param which is a function (callback) which should be called with the result.
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*
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* Both the AJAX and the function approach rely on the same return value - an object where the keys are the node IDs, and the value is the children of that node as an array.
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*
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* {
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* "id1" : [{ "text" : "Child of ID1", "id" : "c1" }, { "text" : "Another child of ID1", "id" : "c2" }],
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* "id2" : [{ "text" : "Child of ID2", "id" : "c3" }]
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* }
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*
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* @name $.jstree.defaults.massload
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* @plugin massload
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*/
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$.jstree.defaults.massload = null;
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$.jstree.plugins.massload = function (options, parent) {
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this.init = function (el, options) {
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parent.init.call(this, el, options);
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this._data.massload = {};
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};
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this._load_nodes = function (nodes, callback, is_callback) {
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var s = this.settings.massload;
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if(is_callback && !$.isEmptyObject(this._data.massload)) {
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return parent._load_nodes.call(this, nodes, callback, is_callback);
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}
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if($.isFunction(s)) {
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return s.call(this, nodes, $.proxy(function (data) {
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if(data) {
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for(var i in data) {
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if(data.hasOwnProperty(i)) {
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this._data.massload[i] = data[i];
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}
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}
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}
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parent._load_nodes.call(this, nodes, callback, is_callback);
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}, this));
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}
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if(typeof s === 'object' && s && s.url) {
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s = $.extend(true, {}, s);
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if($.isFunction(s.url)) {
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s.url = s.url.call(this, nodes);
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}
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if($.isFunction(s.data)) {
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s.data = s.data.call(this, nodes);
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}
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return $.ajax(s)
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.done($.proxy(function (data,t,x) {
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if(data) {
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for(var i in data) {
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if(data.hasOwnProperty(i)) {
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this._data.massload[i] = data[i];
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}
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}
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}
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parent._load_nodes.call(this, nodes, callback, is_callback);
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}, this))
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.fail($.proxy(function (f) {
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parent._load_nodes.call(this, nodes, callback, is_callback);
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}, this));
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}
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return parent._load_nodes.call(this, nodes, callback, is_callback);
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};
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this._load_node = function (obj, callback) {
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var d = this._data.massload[obj.id];
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if(d) {
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return this[typeof d === 'string' ? '_append_html_data' : '_append_json_data'](obj, typeof d === 'string' ? $($.parseHTML(d)).filter(function () { return this.nodeType !== 3; }) : d, function (status) {
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callback.call(this, status);
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delete this._data.massload[obj.id];
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});
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}
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return parent._load_node.call(this, obj, callback);
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};
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};
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})); |