☰

Wanikani: Back to back

Makes reading and meaning appear back to back in reviews and lessons

当前为 2022-02-12 提交的版本，查看 最新版本。

// ==UserScript==
// @name         Wanikani: Back to back
// @namespace    http://tampermonkey.net/
// @version      1.1.1
// @description  Makes reading and meaning appear back to back in reviews and lessons
// @author       Kumirei
// @include       /^https://(www|preview).wanikani.com/(lesson|review)/session/
// @license MIT
// @grant        none
// ==/UserScript==

;(function (wkof, $) {
    // Page related info
    const isReviewsPage = location.pathname.match('lesson') == null
    const currentItemKey = isReviewsPage ? 'currentItem' : 'l/currentQuizItem'
    const questionTypeKey = isReviewsPage ? 'questionType' : 'l/questionType'
    const UIDPrefix = isReviewsPage ? '' : 'l/stats/'
    const traceFunctionName = isReviewsPage ? /randomQuestion/ : /selectItem/

    // Script info
    const script_name = 'Back 2 Back'
    const script_id = 'back2back'

    // Make sure WKOF is installed
    confirm_wkof(script_name).then(start)

    // Startup
    function start() {
        wkof.include('Menu,Settings')
        wkof.ready('Menu,Settings').then(load_settings).then(install)
    }

    // Installs script functions on page
    function install() {
        install_menu()
        install_back2back()
        install_prioritization()

        console.log(
            'Beware, "Back To Back" is installed and may cause other scripts using Math.random in a function called "randomQuestion" or "selectItem" to misbehave.',
        )
    }

    // Set up back to back meaning/reading reviews
    function install_back2back() {
        const old_random = Math.random
        const new_random = function () {
            // Replace Math.random only for the wanikani script
            // this is done by throwing an error and checking the trace
            // to see if the function name randomQuestion which WK uses
            // is included
            const match = traceFunctionName.exec(new Error().stack)
            if (match && wkof.settings[script_id].active) return 0
            return old_random()
        }
        Math.random = new_random
    }

    // Set up prioritization of reading or meaning
    function install_prioritization() {
        // Run every time item changes
        $.jStorage.listenKeyChange(currentItemKey, prioritize)
        // Initialize session to prioritized question type
        prioritize()
    }

    // Prioritize reading or meaning
    function prioritize() {
        const prio = wkof.settings[script_id].prioritize
        const item = $.jStorage.get(currentItemKey)
        // Skip if item is a radical, it is already the right question, or no priority is selected
        if (item.type == 'Radical' || $.jStorage.get(questionTypeKey) == prio || 'none' == prio) return
        const UID = (item.type == 'Kanji' ? 'k' : 'v') + item.id
        const done = $.jStorage.get(UIDPrefix + UID)
        // Change the question if no question has been answered yet,
        // Or the priority question has not been answered correctly yet
        if (!done || !done[prio == 'reading' ? 'rc' : 'mc']) {
            $.jStorage.set(questionTypeKey, prio)
            $.jStorage.set(currentItemKey, item)
        }
    }

    /* ----------------------------------------------------------*/
    // WKOF setup
    /* ----------------------------------------------------------*/

    // Makes sure that WKOF is installed
    async function confirm_wkof() {
        if (!wkof) {
            let response = confirm(
                `${script_name} requires WaniKani Open Framework.\nClick "OK" to be forwarded to installation instructions.`,
            )
            if (response) {
                window.location.href =
                    'https://community.wanikani.com/t/instructions-installing-wanikani-open-framework/28549'
            }
            return
        }
    }

    // Load WKOF settings
    function load_settings() {
        const defaults = {
            prioritize: 'none',
            active: true,
        }
        return wkof.Settings.load(script_id, defaults)
    }

    // Installs the options button in the menu
    function install_menu() {
        const config = {
            name: script_id,
            submenu: 'Settings',
            title: script_name,
            on_click: open_settings,
        }
        wkof.Menu.insert_script_link(config)
    }

    // Opens settings dialogue when button is pressed
    function open_settings() {
        let config = {
            script_id: script_id,
            title: script_name,
            on_save: prioritize,
            content: {
                active: { type: 'checkbox', label: 'Active', default: true },
                prioritize: {
                    type: 'dropdown',
                    label: 'Prioritize',
                    default: 'reading',
                    content: { none: 'None', reading: 'Reading', meaning: 'Meaning' },
                },
            },
        }
        let dialog = new wkof.Settings(config)
        dialog.open()
    }
})(window.wkof, window.jQuery)