Brazen Base Search Enhancer

Base class for search enhancement scripts

Versione datata 17/11/2020. Vedi la nuova versione l'ultima versione.

Questo script non dovrebbe essere installato direttamente. È una libreria per altri script da includere con la chiave // @require https://update.sleazyfork.org/scripts/416105/870041/Brazen%20Base%20Search%20Enhancer.js

Dovrai installare un'estensione come Tampermonkey, Greasemonkey o Violentmonkey per installare questo script.

You will need to install an extension such as Tampermonkey to install this script.

Dovrai installare un'estensione come Tampermonkey o Violentmonkey per installare questo script.

Dovrai installare un'estensione come Tampermonkey o Userscripts per installare questo script.

Dovrai installare un'estensione come ad esempio Tampermonkey per installare questo script.

Dovrai installare un gestore di script utente per installare questo script.

(Ho già un gestore di script utente, lasciamelo installare!)

Dovrai installare un'estensione come ad esempio Stylus per installare questo stile.

Dovrai installare un'estensione come ad esempio Stylus per installare questo stile.

Dovrai installare un'estensione come ad esempio Stylus per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

(Ho già un gestore di stile utente, lasciamelo installare!)

// ==UserScript==
// @name         Brazen Base Search Enhancer
// @namespace    brazen
// @version      1.0.1
// @author       brazenvoid
// @license      GPL-3.0-only
// @description  Base class for search enhancement scripts
// @require      https://greasyfork.org/scripts/375557-base-resource/code/Base%20Resource.js?version=869326
// ==/UserScript==

class BrazenBaseSearchEnhancer
{
    static initialize ()
    {
        BrazenBaseSearchEnhancer.throwOverrideError()
        //return (new XNXXSearchFilters).init()
    }

    static throwOverrideError ()
    {
        throw new Error('override this method')
    }

    /**
     * @param {Object} options
     * @param {string} options.scriptPrefix
     * @param {string[]} options.itemClasses
     * @param {Object} options.paginator
     * @param {boolean} options.paginator.enable
     * @param {string} options.paginator.listSelector
     * @param {string} options.paginator.lastPageUrl
     * @param {Function} options.paginator.getPageNo
     * @param {Function} options.paginator.getPageUrl
     * @param {Function} options.paginator.afterPagination
     * @param {Object} options.configDefaults
     * @param {boolean} options.configDefaults.disableItemComplianceValidation
     * @param {number} options.configDefaults.paginationLimit
     * @param {number} options.configDefaults.paginationThreshold
     * @param {boolean} options.configDefaults.showUIAlways
     */
    constructor (options)
    {
        options.configDefaults.disableItemComplianceValidation = false
        options.configDefaults.paginationLimit = 0
        options.configDefaults.paginationThreshold = 0
        options.configDefaults.showUIAlways = false

        /**
         * Array of item compliance filters ordered in intended sequence of execution
         * @type {Function[]}
         * @protected
         */
        this._complianceFilters = []

        /**
         * @type {string[]}
         * @protected
         */
        this._itemClasses = Array.isArray(options.itemClasses) ? options.itemClasses : [options.itemClasses]

        /**
         * @type {string}
         * @protected
         */
        this._itemClassesSelector = '.' + this._itemClasses.join(',.')

        /**
         * Operations to perform after script initialization
         * @type {Function}
         * @protected
         */
        this._onAfterInitialization = null

        /**
         * Operations to perform after UI generation
         * @type {Function}
         * @protected
         */
        this._onAfterUIBuild = null

        /**
         * Operations to perform before compliance validation. This callback can also be used to skip compliance validation by returning false.
         * @type {null}
         * @protected
         */
        this._onBeforeCompliance = null

        /**
         * Operations to perform before UI generation
         * @type {Function}
         * @protected
         */
        this._onBeforeUIBuild = null

        /**
         * Operations to perform after compliance checks, the first time a item is retrieved
         * @type {Function}
         * @protected
         */
        this._onFirstHitAfterCompliance = null

        /**
         * Operations to perform before compliance checks, the first time a item is retrieved
         * @type {Function}
         * @protected
         */
        this._onFirstHitBeforeCompliance = null

        /**
         * Get item lists from the page
         * @type {Function}
         * @protected
         */
        this._onGetItemLists = null

        /**
         * Logic to hide a non-compliant item
         * @type {Function}
         * @protected
         */
        this._onItemHide = (item) => item.hide(100)

        /**
         * Logic to show compliant item
         * @type {Function}
         * @protected
         */
        this._onItemShow = (item) => item.show(100)

        /**
         * Retrieve settings from UI and update settings object
         * @type {Function}
         * @private
         */
        this._onSettingsApply = null

        /**
         * Settings to update in the UI or elsewhere when settings store is updated
         * @type {Function}
         * @protected
         */
        this._onSettingsStoreUpdate = null

        /**
         * Must return the generated settings section node
         * @type {Function}
         * @protected
         */
        this._onUIBuild = null

        /**
         * Validate initiating initialization.
         * Can be used to stop script init on specific pages or vice versa
         * @type {Function}
         * @protected
         */
        this._onValidateInit = () => true

        /**
         * Pagination manager
         * @type {{lastPageUrl: string, listSelector: string, paginatedPageNo: number, enable: boolean, lastPageNo: number, getPageNo: Function, getPageUrl: Function,
         *     currentPageNo: number, afterPagination: Function, targetElement: null|JQuery}}
         * @private
         */
        this._paginator = {
            enable: options.paginator.enable,
            targetElement: null,
            currentPageNo: 0,
            lastPageNo: 0,
            lastPageUrl: options.paginator.lastPageUrl,
            listSelector: options.paginator.listSelector,
            paginatedPageNo: 0,
            afterPagination: options.paginator.afterPagination,
            getPageNo: options.paginator.getPageNo,
            getPageUrl: options.paginator.getPageUrl,
        }

        /**
         * @type {string}
         * @private
         */
        this._scriptPrefix = options.scriptPrefix

        /**
         * Local storage store with defaults
         * @type {LocalStore}
         * @protected
         */
        this._settingsStore = new LocalStore(this._scriptPrefix + 'settings', options.configDefaults)

        /**
         * @type {Object}
         * @protected
         */
        this._settings = this._settingsStore.retrieve().get()

        /**
         * @type {StatisticsRecorder}
         * @protected
         */
        this._statistics = new StatisticsRecorder(this._scriptPrefix)

        /**
         * @type {BrazenUIGenerator}
         * @protected
         */
        this._uiGen = new BrazenUIGenerator(this._settings.showUIAlways, this._scriptPrefix)

        /**
         * @type {Validator}
         * @protected
         */
        this._validator = (new Validator(this._statistics))
    }

    /**
     * @param {Function} eventHandler
     * @param {*} parameters
     * @return {*}
     * @private
     */
    _callEventHandler (eventHandler, ...parameters)
    {
        if (eventHandler) {
            return eventHandler(...parameters)
        }
        return null
    }

    /**
     * Filters items as per settings
     * @param {JQuery} itemsList
     * @param {boolean} fromObserver
     * @protected
     */
    _complyItemsList (itemsList, fromObserver = false)
    {
        let items = fromObserver ? itemsList.filter(this._itemClassesSelector) : itemsList.find(this._itemClassesSelector)
        items.each((index, element) => {
            let item = $(element)
            if (typeof element['scriptProcessedOnce'] === 'undefined') {
                element.scriptProcessedOnce = false
                this._callEventHandler(this._onFirstHitBeforeCompliance, item)
            }

            this._validateItemCompliance(item)

            if (!element['scriptProcessedOnce']) {
                this._callEventHandler(this._onFirstHitAfterCompliance, item)
                element.scriptProcessedOnce = true
            }

            this._statistics.updateUI()
        })
        this._validatePaginationThreshold()
    }

    /**
     * @protected
     */
    _createSettingsFormActions ()
    {
        return this._uiGen.createSettingsFormActions(this._settingsStore, () => {
            this._callEventHandler(this._onSettingsApply)
            this._statistics.reset()
            this._callEventHandler(this._onGetItemLists).each((index, itemsList) => {
                this._complyItemsList($(itemsList))
            })
        })
    }

    /**
     * @param {JQuery|null} UISection
     * @private
     */
    _embedUI (UISection)
    {
        if (UISection) {
            this._uiGen.constructor.appendToBody(UISection)
            this._uiGen.constructor.appendToBody(this._uiGen.createSettingsShowButton('', UISection, () => {
                if (!this._settings.showUIAlways) {
                    UISection.hide()
                }
            }))
            this._callEventHandler(this._onSettingsStoreUpdate)
        }
    }

    /**
     * @param {Object} sanitizationRules
     * @return {string}
     * @protected
     */
    _transformSanitizationRulesToText (sanitizationRules)
    {
        let sanitizationRulesText = []
        for (let substitute in sanitizationRules) {
            sanitizationRulesText.push(substitute + '=' + sanitizationRules[substitute].join(','))
        }
        return sanitizationRulesText.join('\n')
    }

    /**
     * @param {string[]} strings
     * @protected
     */
    _trimAndKeepNonEmptyStrings (strings)
    {
        let nonEmptyStrings = []
        for (let string of strings) {
            string = string.trim()
            if (string !== '') {
                nonEmptyStrings.push(string)
            }
        }
        return nonEmptyStrings
    }

    /**
     * @param {string[]} sanitizationRules
     * @protected
     */
    _validateAndSetSanitizationRules (sanitizationRules)
    {
        if (sanitizationRules.length) {
            let fragments, validatedTargetWords
            this._settings.sanitize = {}

            for (let sanitizationRule of sanitizationRules) {
                if (sanitizationRule.includes('=')) {

                    fragments = sanitizationRule.split('=')
                    if (fragments[0] === '') {
                        fragments[0] = ' '
                    }

                    validatedTargetWords = this._trimAndKeepNonEmptyStrings(fragments[1].split(','))
                    if (validatedTargetWords.length) {
                        this._settings.sanitize[fragments[0]] = validatedTargetWords
                    }
                }
            }
        }
    }

    /**
     * @param {JQuery} item
     * @protected
     */
    _validateItemCompliance (item)
    {
        let itemComplies = true

        if (!this._settings.disableItemComplianceValidation && this._callEventHandler(this._onBeforeCompliance, item) !== false) {
            for (let complianceFilter of this._complianceFilters) {
                if (!complianceFilter(item)) {
                    itemComplies = false
                    break
                }
            }
        }
        itemComplies ? this._callEventHandler(this._onItemShow, item) : this._callEventHandler(this._onItemHide, item)
    }

    _validatePaginationThreshold ()
    {
        if (this._paginator.enable &&
            this._settings.paginationThreshold &&
            (this._settings.paginationLimit <= 0 || (this._paginator.paginatedPageNo - this._paginator.currentPageNo <= this._settings.paginationLimit)) &&
            this._paginator.paginatedPageNo < this._paginator.lastPageNo
        ) {
            let compliantItems = this._paginator.targetElement.find(this._itemClassesSelector + ':visible')

            if (compliantItems.length < this._settings.paginationThreshold) {
                let nextPageUrl = this._paginator.getPageUrl(++this._paginator.paginatedPageNo)
                let sandbox = $('<div id="brazen-sandbox" hidden/>')

                sandbox.appendTo('body')
                sandbox.load(nextPageUrl + ' ' + this._paginator.listSelector, '', () => {
                    sandbox.find(this._itemClassesSelector).insertAfter(this._paginator.targetElement.find(this._itemClassesSelector + ':last'))
                    sandbox.remove()
                    this._paginator.afterPagination(this._paginator)
                })
            }
        }
    }

    /**
     * Initialize the script and do basic UI removals
     */
    init ()
    {
        if (this._callEventHandler(this._onValidateInit)) {

            if (this._paginator.enable) {
                this._paginator.targetElement = $(this._paginator.listSelector + ':first')
                this._paginator.currentPageNo = this._paginator.getPageNo(window.location.href)
                this._paginator.lastPageNo = this._paginator.getPageNo(this._paginator.lastPageUrl)
                this._paginator.paginatedPageNo = this._paginator.currentPageNo
            }

            this._callEventHandler(this._onBeforeUIBuild)
            this._embedUI(this._callEventHandler(this._onUIBuild))
            this._callEventHandler(this._onAfterUIBuild)

            this._callEventHandler(this._onGetItemLists).each((index, itemList) => {
                ChildObserver.create().onNodesAdded((itemsAdded) => this._complyItemsList($(itemsAdded), true).observe(itemList))
                this._complyItemsList($(itemList))
            })

            this._uiGen.updateStatus('Initial run completed.')

            this._callEventHandler(this._onAfterInitialization)

            this._settingsStore.onChange(() => this._callEventHandler(this._onSettingsStoreUpdate))
        }
    }
}