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Brazen Item Attributes Resolver

Item attributes resolution helper class

Fra og med 19.07.2021. Se den nyeste version.

Dette script bør ikke installeres direkte. Det er et bibliotek, som andre scripts kan inkludere med metadirektivet // @require https://update.greasyfork.ip-ddns.com/scripts/429587/951949/Brazen%20Item%20Attributes%20Resolver.js 

// ==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()
			})
		}
	}
}