Brazen Base Search Enhancer

Base class for search enhancement scripts

Version vom 11.12.2020. 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.sleazyfork.org/scripts/416105/879317/Brazen%20Base%20Search%20Enhancer.js

// ==UserScript==
// @name         Brazen Base Search Enhancer
// @namespace    brazen
// @version      2.1.3
// @author       brazenvoid
// @license      GPL-3.0-only
// @description  Base class for search enhancement scripts
// ==/UserScript==

const CONFIG_PAGINATOR_LIMIT = 'Pagination Limit'
const CONFIG_PAGINATOR_THRESHOLD = 'Pagination Threshold'
const OPTION_ALWAYS_SHOW_SETTINGS_PANE = 'Always Show Settings Pane'
const OPTION_DISABLE_COMPLIANCE_VALIDATION = 'Disable Item Compliance Validation'

const FILTER_TEXT_BLACKLIST = 'Blacklist'
const FILTER_TEXT_SEARCH = 'Search'
const FILTER_TEXT_SANITIZATION = 'Text Sanitization Rules'
const FILTER_TEXT_WHITELIST = 'Whitelist'

class BrazenBaseSearchEnhancer
{
    /**
     * @return BrazenBaseSearchEnhancer
     */
    static initialize ()
    {
        BrazenBaseSearchEnhancer.throwOverrideError()
    }

    static throwOverrideError ()
    {
        throw new Error('Method must be overridden.')
    }

    /**
     * @param {string} scriptPrefix
     * @param {string|string[]} itemClasses
     * @param {boolean} enablePaginator
     */
    constructor (scriptPrefix, itemClasses, enablePaginator = false)
    {
        /**
         * Array of item compliance filters ordered in intended sequence of execution
         * @type {Function[]}
         * @protected
         */
        this._complianceFilters = []

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

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

        /**
         * Pagination manager
         * @type Paginator|null
         * @protected
         */
        this._paginator = null

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

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

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

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

        /**
         * Local storage store with defaults
         * @type {ConfigurationManager}
         * @protected
         */
        this._configurationManager = ConfigurationManager.create(this._uiGen).
            addFlagField(OPTION_DISABLE_COMPLIANCE_VALIDATION, 'Disables all search filters.').
            addFlagField(OPTION_ALWAYS_SHOW_SETTINGS_PANE, 'Always show configuration interface.').
            addNumberField(CONFIG_PAGINATOR_LIMIT, 0, 50, 'Limit paginator to concatenate the specified number of maximum pages. Zero equates to infinite.').
            addNumberField(CONFIG_PAGINATOR_THRESHOLD, 10, 1000, 'Make paginator ensure the specified number of minimum results.').
            addRulesetField(FILTER_TEXT_BLACKLIST, '', null, null, (rules) => Utilities.buildWholeWordMatchingRegex(rules)).
            addRulesetField(FILTER_TEXT_SANITIZATION, '', (rules) => {
                let sanitizationRulesText = []
                for (let substitute in rules) {
                    sanitizationRulesText.push(substitute + '=' + rules[substitute].join(','))
                }
                return sanitizationRulesText

            }, (rules) => {
                let sanitizationRules = {}, fragments, validatedTargetWords
                for (let sanitizationRule of rules) {

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

                        validatedTargetWords = Utilities.trimAndKeepNonEmptyStrings(fragments[1].split(','))
                        if (validatedTargetWords.length) {
                            sanitizationRules[fragments[0]] = validatedTargetWords
                        }
                    }
                }
                return sanitizationRules
            }, (rules) => {
                let optimizedRules = {}
                for (const substitute in rules) {
                    optimizedRules[substitute] = Utilities.buildWholeWordMatchingRegex(rules[substitute])
                }
                return optimizedRules
            }).
            addRulesetField(FILTER_TEXT_WHITELIST, '', null, null, (rules) => Utilities.buildWholeWordMatchingRegex(rules)).
            addTextField(FILTER_TEXT_SEARCH, 'Show videos with these comma separated words in their names.')

        // Events

        /**
         * 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)

        /**
         * 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
    }

    /**
     * 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
                Utilities.callEventHandler(this._onFirstHitBeforeCompliance, [item])
            }

            this._validateItemCompliance(item)

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

            this._statistics.updateUI()
        })
    }

    /**
     * @protected
     */
    _createSettingsFormActions ()
    {
        return this._uiGen.createFormSection().append([
            this._uiGen.createFormActions([
                this._uiGen.createFormButton('Apply', () => this._onApplyNewSettings(), 'Apply settings.'),
                this._uiGen.createFormButton('Save', () => this._onSaveSettings(), 'Apply and update saved configuration.'),
                this._uiGen.createFormButton('Reset', () => this._onResetSettings(), 'Revert to saved configuration.'),
            ]),
        ])
    }

    /**
     * @param {JQuery} UISection
     * @private
     */
    _embedUI (UISection)
    {
        UISection.on('mouseleave', (event) => {
            if (!this._configurationManager.getValue(OPTION_ALWAYS_SHOW_SETTINGS_PANE)) {
                $(event.currentTarget).hide(300)
            }
        })
        if (this._configurationManager.getValue(OPTION_ALWAYS_SHOW_SETTINGS_PANE)) {
            UISection.show()
        }
        this._uiGen.constructor.appendToBody(UISection)
        this._uiGen.constructor.appendToBody(this._uiGen.createSettingsShowButton('', UISection))
    }

    _onApplyNewSettings ()
    {
        this._configurationManager.update()
        this._validateCompliance()
    }

    _onResetSettings ()
    {
        this._configurationManager.revertChanges()
        this._validateCompliance()
    }

    _onSaveSettings ()
    {
        this._onApplyNewSettings()
        this._configurationManager.save()
    }

    /**
     * @param {boolean} firstRun
     * @protected
     */
    _validateCompliance (firstRun = false)
    {
        let itemLists = Utilities.callEventHandler(this._onGetItemLists)
        if (!firstRun) {
            this._statistics.reset()
            itemLists.each((index, itemsList) => {
                this._complyItemsList($(itemsList))
            })
        } else {
            itemLists.each((index, itemList) => {
                ChildObserver.create().onNodesAdded((itemsAdded) => this._complyItemsList($(itemsAdded), true)).observe(itemList)
                this._complyItemsList($(itemList))
            })
        }
        if (this._paginator) {
            this._paginator.run(this._configurationManager.getValue(CONFIG_PAGINATOR_THRESHOLD), this._configurationManager.getValue(CONFIG_PAGINATOR_LIMIT))
        }
    }

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

        if (!this._configurationManager.getValue(OPTION_DISABLE_COMPLIANCE_VALIDATION) && Utilities.callEventHandler(this._onBeforeCompliance, [item]) !== false) {
            for (let complianceFilter of this._complianceFilters) {
                if (!complianceFilter(item)) {
                    itemComplies = false
                    break
                }
            }
        }
        itemComplies ? Utilities.callEventHandler(this._onItemShow, [item]) : Utilities.callEventHandler(this._onItemHide, [item])
    }

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

            this._configurationManager.initialize(this._scriptPrefix)

            if (this._paginator) {
                this._paginator.initialize()
            }

            Utilities.callEventHandler(this._onBeforeUIBuild)
            this._embedUI(Utilities.callEventHandler(this._onUIBuild))
            Utilities.callEventHandler(this._onAfterUIBuild)

            this._configurationManager.updateInterface()

            this._validateCompliance(true)

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

            Utilities.callEventHandler(this._onAfterInitialization)
        }
    }
}