Brazen Item Attributes Resolver

Item attributes resolution helper class

Version vom 19.07.2021. Aktuellste Version

Dieses Skript sollte nicht direkt installiert werden. Es handelt sich hier um eine Bibliothek für andere Skripte, welche über folgenden Befehl in den Metadaten eines Skriptes eingebunden wird // @require https://update.greasyforks.org/scripts/429587/951949/Brazen%20Item%20Attributes%20Resolver.js

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// ==UserScript==
// @name         Brazen Item Attributes Resolver
// @namespace    brazenvoid
// @version      1.0.0
// @author       brazenvoid
// @license      GPL-3.0-only
// @description  Item attributes resolution helper class
// ==/UserScript==

class BrazenItemAttributesResolver
{
	/**
	 * @callback ItemAttributesResolverCallback
	 * @param {JQuery} item
	 * @return {*}
	 */
	
	/**
	 * @param {JQuery.Selector} itemPageLinkSelector
	 * @param {JQuery.Selector} itemPageDeepAnalysisSelector
	 */
	constructor (itemPageLinkSelector, itemPageDeepAnalysisSelector)
	{
		/**
		 * @type {{}}
		 * @private
		 */
		this._attributes = {}
		
		/**
		 * @type {{}}
		 * @private
		 */
		this._deepAttributes = {}
		
		/**
		 * @type {boolean}
		 * @private
		 */
		this._hasDeepAttributes = false
		
		/**
		 * @type {JQuery.Selector}
		 * @protected
		 */
		this._itemPageLinkSelector = itemPageLinkSelector
		
		/**
		 * @type {JQuery.Selector}
		 * @protected
		 */
		this._itemPageDeepAnalysisSelector = itemPageDeepAnalysisSelector
		
		/**
		 * @type {JQuery<HTMLElement> | jQuery | HTMLElement}
		 * @private
		 */
		this._sandbox = $('<div id="brazen-item-attributes-resolver-sandbox" hidden/>').appendTo('body')
	}
	
	/**
	 * @param {string} attributeName
	 * @returns {string}
	 * @private
	 */
	_generateAttributeName (attributeName)
	{
		return 'scriptItemAttribute' + attributeName[0].toUpperCase() + attributeName.slice(1)
	}
	
	/**
	 * @param {string} name
	 * @param {ItemAttributesResolverCallback} resolutionCallback
	 * @returns {this}
	 */
	addAttribute (name, resolutionCallback)
	{
		this._attributes[name] = resolutionCallback
		return this
	}
	
	/**
	 * @param {string} name
	 * @param {ItemAttributesResolverCallback} resolutionCallback
	 * @returns {this}
	 */
	addDeepAttribute (name, resolutionCallback)
	{
		this._deepAttributes[name] = resolutionCallback
		this._hasDeepAttributes = true
		return this
	}
	
	/**
	 * @param {JQuery} item
	 * @param {string} attributeName
	 * @returns {*}
	 */
	getAttribute (item, attributeName)
	{
		return item[0][this._generateAttributeName(attributeName)]
	}
	
	/**
	 * @param {JQuery} item
	 * @param {Function|null} afterResolutionCallback
	 */
	resolveAttributes (item, afterResolutionCallback = null)
	{
		let element = item[0]
		for (const attributeName in this._attributes) {
			element[this._generateAttributeName(attributeName)] = this._attributes[attributeName](item)
		}
		if (this._hasDeepAttributes) {
			this._sandbox.load(item.find(this._itemPageLinkSelector).attr('href') + ' ' + this._itemPageDeepAnalysisSelector, () => {
				for (const attributeName in this._deepAttributes) {
					element[this._generateAttributeName(attributeName)] = this._deepAttributes[attributeName](this._sandbox)
				}
				this._sandbox.empty()
			})
		}
	}
}