Embeds anime images & audio examples into JPDB review and vocabulary pages using Nadeshiko's API. Compatible only with TamperMonkey.
// ==UserScript==
// @name JPDB Nadeshiko Examples
// @version 2025-9-20
// @description Embeds anime images & audio examples into JPDB review and vocabulary pages using Nadeshiko's API. Compatible only with TamperMonkey.
// @author awoo& Sacus
// @namespace jpdb-nadeshiko-examples
// @match https://jpdb.io/review*
// @match https://jpdb.io/vocabulary/*
// @match https://jpdb.io/kanji/*
// @match https://jpdb.io/search*
// @match https://jpdb.io/deck*
// @connect api.brigadasos.xyz
// @connect sargus.fr
// @grant GM_addElement
// @grant GM_xmlhttpRequest
// @grant GM_setValue
// @grant GM_getValue
// @grant GM_registerMenuCommand
// @license MIT
// ==/UserScript==
/*jshint esversion: 11 */
/* global GM_addElement, GM_xmlhttpRequest, GM_setValue, GM_getValue, GM_registerMenuCommand */
(function () {
'use strict';
let nadeshikoApiKey = GM_getValue("nadeshiko-api-key", "");
// Register menu commands
GM_registerMenuCommand("Set Nadeshiko API Key", async () => {
nadeshikoApiKey = fetchNadeshikoApiKey();
});
GM_registerMenuCommand("Open Configuration", () => {
createOverlayMenu();
});
function fetchNadeshikoApiKey() {
let apiKey = prompt("A Nadeshiko API key is required for this extension to work.\n\nYou can get one for free here after creating an account: https://nadeshiko.co/settings/developer");
GM_setValue("nadeshiko-api-key", apiKey);
if (apiKey) {
alert("API Key saved successfully!");
}
return apiKey;
}
// to use custom hotkeys just add them into this array following the same format. Any single keys except space
// should work. If you want to use special keys, check the linked page for how to represent them in the array
// (link leads to the arrow keys part so you can compare with the array and be sure which part to write):
// https://developer.mozilla.org/en-US/docs/Web/API/UI_Events/Keyboard_event_key_values#navigation_keys
const hotkeyOptions = ['None', 'ArrowLeft ArrowRight', ', .', '[ ]', 'Q W'];
const RANDOM_SENTENCE_ENUM = {
DISABLE: 0,
ON_FIRST: 1,
EVERY_TIME: 2
};
const CONFIG = {
IMAGE_WIDTH: '400px',
WIDE_MODE: true,
DEFINITIONS_ON_RIGHT_IN_WIDE_MODE: false,
ARROW_WIDTH: '75px',
ARROW_HEIGHT: '45px',
PAGE_WIDTH: '75rem',
SOUND_VOLUME: 80,
ENABLE_EXAMPLE_TRANSLATION: true,
SENTENCE_FONT_SIZE: '120%',
TRANSLATION_FONT_SIZE: '85%',
COLORED_SENTENCE_TEXT: true,
AUTO_PLAY_SOUND: true,
NUMBER_OF_PRELOADS: 1,
VOCAB_SIZE: '250%',
MINIMUM_EXAMPLE_LENGTH: 0,
MAXIMUM_EXAMPLE_LENGTH: 100,
HOTKEYS: ['None'],
DEFAULT_TO_EXACT_SEARCH: true,
// On changing this config option, the icons change but the sentences don't, so you
// have to click once to match up the icons and again to actually change the sentences
RANDOM_SENTENCE: RANDOM_SENTENCE_ENUM,
WEIGHTED_SENTENCES: false,
DEBUG: false, // Set to true to not use IndexedDB and always fetch from API
};
const state = {
currentExampleIndex: 0,
examples: [],
apiDataFetched: false,
vocab: '',
embedAboveSubsectionMeanings: false,
preloadedIndices: new Set(),
currentAudio: null,
exactSearch: true,
error: false,
currentlyPlayingAudio: false,
reading: '',
};
// Prefixing
const scriptPrefix = 'JPDBNadeshikoExamples-';
const configPrefix = 'CONFIG.'; // additional prefix for config variables to go after the scriptPrefix
// do not change either of the above without adding code to handle the change
const setItem = (key, value) => {
localStorage.setItem(scriptPrefix + key, value);
};
const getItem = (key) => {
const prefixedValue = localStorage.getItem(scriptPrefix + key);
if (prefixedValue !== null) {
return prefixedValue;
}
const nonPrefixedValue = localStorage.getItem(key);
// to move away from non-prefixed values as fast as possible
if (nonPrefixedValue !== null) {
setItem(key, nonPrefixedValue);
}
return nonPrefixedValue;
};
// Helper for transitioning to fully script-prefixed config state
// Deletes all localStorage variables starting with configPrefix and re-adds them with scriptPrefix and configPrefix
// Danger of other scripts also having localStorage variables starting with configPrefix, so we add a flag showing that
// we have run this function and make sure it is not set when running it
// Check for Prefixed flag
if (localStorage.getItem(`JPDBNadeshiko*Examples-CONFIG_VARIABLES_PREFIXED`) !== 'true') {
const keysToModify = [];
// Collect keys that need to be modified
for (let i = 0; i < localStorage.length; i++) {
const key = localStorage.key(i);
if (key.startsWith(configPrefix)) {
keysToModify.push(key);
}
}
// Modify the collected keys
keysToModify.forEach((key) => {
const value = localStorage.getItem(key);
localStorage.removeItem(key);
const newKey = scriptPrefix + key;
localStorage.setItem(newKey, value);
});
// Set flag so this only runs once
// Flag has * in name to place at top in alphabetical sorting,
// and most importantly, to ensure the flag is never removed or modified
// by the other script functions that check for the script prefix
localStorage.setItem(`JPDBNadeshiko*Examples-CONFIG_VARIABLES_PREFIXED`, 'true');
}
// IndexedDB Manager
const IndexedDBManager = {
MAX_ENTRIES: 100000000,
EXPIRATION_TIME: 30 * 24 * 60 * 60 * 1000, // 30 days in milliseconds
open() {
return new Promise((resolve, reject) => {
const request = indexedDB.open('NadeshikoDB', 1);
request.onupgradeneeded = function (event) {
const db = event.target.result;
if (!db.objectStoreNames.contains('dataStore')) {
db.createObjectStore('dataStore', {keyPath: 'keyword'});
}
};
request.onsuccess = function (event) {
resolve(event.target.result);
};
request.onerror = function (event) {
reject('IndexedDB error: ' + event.target.errorCode);
};
});
},
get(db, keyword) {
return new Promise((resolve, reject) => {
const transaction = db.transaction(['dataStore'], 'readonly');
const store = transaction.objectStore('dataStore');
const request = store.get(keyword);
request.onsuccess = async function (event) {
const result = event.target.result;
if (result) {
const isExpired = Date.now() - result.timestamp >= this.EXPIRATION_TIME;
const validationError = validateApiResponse(result.data);
if (isExpired) {
console.log(`Deleting entry for keyword "${keyword}" because it is expired.`);
await this.deleteEntry(db, keyword);
resolve(null);
} else if (validationError) {
console.log(`Deleting entry for keyword "${keyword}" due to validation error: ${validationError}`);
await this.deleteEntry(db, keyword);
resolve(null);
} else {
resolve(result.data);
}
} else {
resolve(null);
}
}.bind(this);
request.onerror = function (event) {
reject('IndexedDB get error: ' + event.target.errorCode);
};
});
},
deleteEntry(db, keyword) {
return new Promise((resolve, reject) => {
const transaction = db.transaction(['dataStore'], 'readwrite');
const store = transaction.objectStore('dataStore');
const request = store.delete(keyword);
request.onsuccess = () => resolve();
request.onerror = (e) => reject('IndexedDB delete error: ' + e.target.errorCode);
});
},
getAll(db) {
return new Promise((resolve, reject) => {
const transaction = db.transaction(['dataStore'], 'readonly');
const store = transaction.objectStore('dataStore');
const entries = [];
store.openCursor().onsuccess = function (event) {
const cursor = event.target.result;
if (cursor) {
entries.push(cursor.value);
cursor.continue();
} else {
resolve(entries);
}
};
store.openCursor().onerror = function (event) {
reject('Failed to retrieve entries via cursor: ' + event.target.errorCode);
};
});
},
save(db, keyword, data) {
return new Promise(async (resolve, reject) => {
try {
const validationError = validateApiResponse(data);
if (validationError) {
console.log(`Invalid data detected: ${validationError}. Not saving to IndexedDB.`);
resolve();
return;
}
// check for DEBUG mode
if (CONFIG.DEBUG) {
console.log('DEBUG mode is enabled. Not using IndexedDB, always fetching from API.');
resolve();
return;
}
// Transform the JSON object to slim it down
let slimData = {};
if (data) {
slimData = data;
} else {
console.error('Data does not contain expected structure. Cannot slim down.');
resolve();
return;
}
const entries = await this.getAll(db);
const transaction = db.transaction(['dataStore'], 'readwrite');
const store = transaction.objectStore('dataStore');
if (entries.length >= this.MAX_ENTRIES) {
// Sort entries by timestamp and delete oldest ones
entries.sort((a, b) => a.timestamp - b.timestamp);
const entriesToDelete = entries.slice(0, entries.length - this.MAX_ENTRIES + 1);
// Delete old entries
entriesToDelete.forEach(entry => {
store.delete(entry.keyword).onerror = function () {
console.error('Failed to delete entry:', entry.keyword);
};
});
}
// Add the new slimmed entry
const addRequest = store.put({keyword, data: slimData, timestamp: Date.now()});
addRequest.onsuccess = () => resolve();
addRequest.onerror = (e) => reject('IndexedDB save error: ' + e.target.errorCode);
transaction.oncomplete = function () {
console.log('IndexedDB updated successfully.');
};
transaction.onerror = function (event) {
reject('IndexedDB update failed: ' + event.target.errorCode);
};
} catch (error) {
reject(`Error in saveToIndexedDB: ${error}`);
}
});
},
importJPDBData(db, data) {
return new Promise(async (resolve, reject) => {
try {
/* -------- 1. build slimData -------- */
const slimData = {};
if (data?.cards_vocabulary_jp_en) {
data.cards_vocabulary_jp_en.forEach(card => {
const last = card.reviews?.at(-1);
const grade =
last?.grade === 'pass' ? 1
: last?.grade === 'fail' ? 2
: 0;
slimData[`${card.spelling}|${card.reading}`] = grade;
});
} else {
reject('Unexpected data format');
return;
}
if (CONFIG.DEBUG) {
resolve();
return;
}
/* -------- 2. read current amount first -------- */
const entries = await this.getAll(db);
/* -------- 3. open a fresh read-write tx -------- */
const tx = db.transaction(['dataStore'], 'readwrite');
const store = tx.objectStore('dataStore');
// delete oldest if over quota
if (entries.length >= this.MAX_ENTRIES) {
entries
.sort((a, b) => a.timestamp - b.timestamp)
.slice(0, entries.length - this.MAX_ENTRIES + 1)
.forEach(entry => store.delete(entry.keyword));
}
// add / replace the imported blob
store.put({
keyword: 'jpdb-imported-data',
data: slimData,
timestamp: Date.now()
});
tx.oncomplete = () => {
console.log('IndexedDB import OK');
resolve();
};
tx.onerror = e => {
reject('IndexedDB import failed: ' + e.target.error);
};
} catch (err) {
reject(`Error in importJPDBData: ${err}`);
}
});
},
delete() {
return new Promise((resolve, reject) => {
const request = indexedDB.deleteDatabase('NadeshikoDB');
request.onsuccess = function () {
console.log('IndexedDB deleted successfully');
resolve();
};
request.onerror = function (event) {
console.error('Error deleting IndexedDB:', event.target.errorCode);
reject('Error deleting IndexedDB: ' + event.target.errorCode);
};
request.onblocked = function () {
console.warn('Delete operation blocked. Please close all other tabs with this site open and try again.');
reject('Delete operation blocked');
};
});
}
};
// API FUNCTIONS=====================================================================================================================
function getNadeshikoData(vocab, exactSearch, reading = state?.reading) {
return new Promise(async (resolve, reject) => {
const searchVocab = exactSearch ? `"${vocab}"` : vocab;
const url = `https://api.brigadasos.xyz/api/v1/search/media/sentence`;
const maxRetries = 2;
let attempt = 0;
async function fetchData() {
try {
const db = await IndexedDBManager.open();
const cachedData = await IndexedDBManager.get(db, searchVocab);
if (cachedData && Array.isArray(cachedData) && cachedData.length > 0) {
console.log('Data retrieved from IndexedDB');
state.examples = cachedData;
state.apiDataFetched = true;
resolve();
} else {
const data = JSON.stringify({
query: searchVocab,
"limit": 500,
"min_length": CONFIG.MINIMUM_EXAMPLE_LENGTH,
"max_length": CONFIG.MAXIMUM_EXAMPLE_LENGTH
})
console.log(`Calling API for: ${searchVocab} with data ${data}`);
if (!nadeshikoApiKey) {
// Ask for API Key on search if not set to prevent 401 errors
nadeshikoApiKey = fetchNadeshikoApiKey();
if (!nadeshikoApiKey) {
return;
}
}
GM_xmlhttpRequest({
method: "POST",
url: url,
data: data,
headers:
{
"X-API-Key": nadeshikoApiKey,
"Content-Type": "application/json"
},
onload: async function (response) {
async function validateAndUpdateExamples(jsonState) {
try {
const sargusData = {
word: vocab,
reading: reading, // optional reading
sentences: (jsonState ?? []) // guarantee an array
.map(e => e?.segment_info?.content_jp) // optional-chain every step
.filter(Boolean) // keep only truthy strings
};
const names = await checkIfNames(sargusData); // may throw/reject
if (!Array.isArray(names)) {
throw new TypeError('checkIfNames did not return an array.');
}
if (names.length !== jsonState.length) {
throw new RangeError(
`Mismatch: received ${names.length} flags for ${jsonState.length} examples.`
);
}
jsonState = jsonState.filter((_, i) => !names[i]);
return jsonState; // return filtered examples
} catch (err) {
console.error('Failed to filter examples:', err);
// Decide how to handle the error: show a message, re-throw, etc.
}
}
if (response.status === 200) {
let jsonData = parseJSON(response.response).sentences;
console.log("API JSON Received");
const validationError = validateApiResponse(jsonData);
if (!validationError) {
state.apiDataFetched = true;
// check if the sentence is in the vocab
jsonData = await validateAndUpdateExamples(jsonData)
const sentenceResults = await Promise.all(
jsonData.map(async sentence => {
return await preprocessSentence(sentence, reading, vocab);
}))
jsonData = sentenceResults.filter(s => s);
if (jsonData && jsonData.length > 0) {
for (let i = 0; i < jsonData.length; i++) {
state.examples.push(jsonData[i]);
}
}
await IndexedDBManager.save(db, searchVocab, jsonData);
resolve();
} else {
attempt++;
if (attempt < maxRetries) {
console.log(`Validation error: ${validationError}. Retrying... (${attempt}/${maxRetries})`);
setTimeout(fetchData, 5000); // Add a 5-second delay before retrying
} else {
reject(`Invalid API response after ${maxRetries} attempts: ${validationError}`);
state.error = true;
embedImageAndPlayAudio(); //update displayed text
}
}
} else {
reject(`API call failed with status: ${response.status}`);
}
},
onerror: function (error) {
reject(`An error occurred: ${error}`);
}
});
}
} catch (error) {
reject(`Error: ${error}`);
}
}
await fetchData();
});
}
function parseJSON(responseText) {
try {
return JSON.parse(responseText);
} catch (e) {
console.error('Error parsing JSON:', e);
return null;
}
}
function validateApiResponse(jsonData) {
state.error = false;
if (!jsonData) {
return 'Not a valid JSON';
}
const categoryCount = jsonData.length;
if (!categoryCount) {
return 'Missing category count';
}
// Check if all category counts are zero
const allZero = categoryCount === 0;
if (allZero) {
return 'Blank API';
}
return null; // No error
}
async function checkIfNames(sargusData) {
return await new Promise((resolve, reject) => {
GM_xmlhttpRequest({
method: "POST",
url: "http://sargus.fr:8000/api/check_names",
data: JSON.stringify(sargusData),
headers: {
"Content-Type": "application/json"
},
onload: function (response) {
if (response.status === 200) {
try {
const names = JSON.parse(response.responseText);
if (Array.isArray(names)) {
resolve(names);
} else {
console.error("Invalid response format, expected an array:", names);
reject(null);
}
} catch (e) {
console.error("Error parsing response as JSON:", e);
reject(null);
}
} else {
console.error("Error checking if names :", response.responseText);
reject(null);
}
}
});
});
}
async function preprocessSentence(sentence, reading_ = state.reading, vocab_ = state.vocab) {
const content = sentence.segment_info.content_jp;
// Set weights for each sentence by calling checking jpdb history data
const db = await IndexedDBManager.open();
const datas = await IndexedDBManager.get(db, "jpdb-imported-data");
if (CONFIG.WEIGHTED_SENTENCES && datas) {
let vocabInSentence = false;
await processJPDBData(sentence);
async function processJPDBData(sentence) {
return await new Promise((resolve) => {
GM_xmlhttpRequest({
method: "POST",
url: "http://sargus.fr:8000/api/parse",
data: JSON.stringify({
"sentence": content,
}),
onload: function (response) {
let weight = 1;
if (response.status === 200) {
try {
// reponse is format [ "spelling reading", "spelling reading", ... ]
const vocab = JSON.parse(response.responseText);
if (vocab.length > 0) {
let matchCount = 0;
for (const item of vocab) {
const spelling = item.split(' ')[0];
const reading = item.split(' ')[1] || '';
if (!reading_) {
vocabInSentence = true;
} else if (spelling && reading && (spelling.includes(vocab_) || reading.includes(reading_))) {
vocabInSentence = true;
}
if (datas && datas[`${spelling}|${reading}`] !== undefined) {
matchCount += datas[`${spelling}|${reading}`];
}
}
weight = (matchCount * 100 / (vocab.length));
}
} catch {
console.error("Error parsing parse response");
}
}
sentence.weight = weight;
resolve();
},
onerror: function () {
sentence.weight = 1;
resolve();
}
});
});
}
// if vocabInSentence is false, remove sentence from the examples
if (!vocabInSentence) {
console.log(`Skipping sentence "${content}" because it does not contain the vocab "${vocab_}" or reading "${reading_}".`);
return null;
}
}
return sentence;
}
// PARSE VOCAB FUNCTIONS =====================================================================================================================
function parseVocabFromAnswer() {
// Select all links containing "/kanji/" or "/vocabulary/" in the href attribute
const elements = document.querySelectorAll('a[href*="/kanji/"], a[href*="/vocabulary/"]');
console.log("Parsing Answer Page");
// Iterate through the matched elements
for (const element of elements) {
const href = element.getAttribute('href');
const rubyElements = element.querySelectorAll('ruby');
// Match the href to extract kanji or vocabulary (ignoring ID if present)
const match = href.match(/\/(kanji|vocabulary)\/(?:\d+\/)?([^\#]*)#/);
// If ruby elements exist, extract vocab and reading
if (rubyElements.length > 0) {
let vocabulary = "";
const reading = Array.from(rubyElements)
.map(ruby => {
const rtElement = ruby.querySelector('rt');
vocabulary = vocabulary + (ruby.childNodes[0] ? ruby.childNodes[0].textContent.trim() : '');
if (rtElement) {
return rtElement.textContent.trim();
} else {
return ruby.textContent.trim();
}
})
.join('');
return [vocabulary, reading];
}
// If match exists in href, return that as both vocab and reading
if (match) {
const vocab = match[2].trim();
return [vocab, vocab];
}
// Return text content as both vocab and reading if nothing else found
const text = element.textContent.trim();
if (text) {
return [text, text];
}
}
return ['', ''];
}
function parseVocabFromReview() {
console.log("Parsing Review Page");
// Select the element with class 'kind' to determine the type of content
const kindElement = document.querySelector('.kind');
// If kindElement doesn't exist, set kindText to null
const kindText = kindElement ? kindElement.textContent.trim() : null;
// Accept 'Kanji' or 'Vocabulary' kindText
if (kindText !== 'Kanji' && kindText !== 'Vocabulary') {
console.log("Not Kanji or existing Vocabulary. Attempting to parse New Vocab.");
// Attempt to parse from <a> tag with specific pattern
const anchorElement = document.querySelector('a.plain[href*="/vocabulary/"]');
if (anchorElement) {
const href = anchorElement.getAttribute('href');
const match = href.match(/\/vocabulary\/\d+\/([^#]+)#a/);
if (match && match[1]) {
const new_vocab = match[1];
console.log("Found New Vocab:", new_vocab);
return new_vocab;
}
}
console.log("No Vocabulary found.");
return '';
}
if (kindText === 'Vocabulary') {
// Select the element with class 'plain' to extract vocabulary
const plainElement = document.querySelector('.plain');
if (!plainElement) {
return '';
}
const rubyElements = plainElement.querySelectorAll('ruby');
// if not ruby elements, return the text content of the plain element twice (katakana word)
if (rubyElements.length === 0) {
const vocabText = plainElement.textContent.trim();
console.log("Found Vocabulary:", vocabText);
return [vocabText, vocabText];
}
// Extract the text from <rt> children and join them.
let vocabulary = "";
const reading = Array.from(rubyElements)
.map(ruby => {
const rtElement = ruby.querySelector('rt');
// add the text not in the <rt> tag to the vocabulary
vocabulary = vocabulary + (ruby.childNodes[0] ? ruby.childNodes[0].textContent.trim() : '');
if (rtElement) {
rtElement.style.display = 'none';
return rtElement.textContent.trim();
} else {
return ruby.textContent.trim();
}
})
.join('');
// Regular expression to check if the vocabulary contains kanji characters
const kanjiRegex = /[\u4e00-\u9faf\u3400-\u4dbf]/;
if (kanjiRegex.test(vocabulary) || vocabulary) {
console.log("Found Vocabulary:", vocabulary);
return [vocabulary, reading];
}
} else if (kindText === 'Kanji') {
// Select the hidden input element to extract kanji
const hiddenInput = document.querySelector('input[name="c"]');
if (!hiddenInput) {
return '';
}
const vocab = hiddenInput.value.split(',')[1];
const kanjiRegex = /[\u4e00-\u9faf\u3400-\u4dbf]/;
if (kanjiRegex.test(vocab)) {
console.log("Found Kanji:", vocab);
return vocab;
}
}
console.log("No Vocabulary or Kanji found.");
return '';
}
function parseVocabFromVocabulary() {
// Get the current URL
let url = window.location.href;
// Remove query parameters (e.g., ?lang=english) and fragment identifiers (#)
url = url.split('?')[0].split('#')[0];
// Match the URL structure for a vocabulary page
const match = url.match(/https:\/\/jpdb\.io\/vocabulary\/(\d+)\/([^\#\/]*)\/([^\#\/]*)/);
console.log("Parsing Vocabulary Page");
if (match) {
// Extract and decode the vocabulary part from the URL
let vocab = match[2];
state.embedAboveSubsectionMeanings = true; // Set state flag
let reading = match[3];
return [decodeURIComponent(vocab), decodeURIComponent(reading)];
}
// Return empty string if no match
return '';
}
function parseVocabFromKanji() {
// Get the current URL
const url = window.location.href;
// Match the URL structure for a kanji page
const match = url.match(/https:\/\/jpdb\.io\/kanji\/(\d+)\/([^\#]*)#a/);
console.log("Parsing Kanji Page");
if (match) {
// Extract and decode the kanji part from the URL
let kanji = match[2];
state.embedAboveSubsectionMeanings = true; // Set state flag
kanji = kanji.split('/')[0];
return decodeURIComponent(kanji);
}
// Return empty string if no match
return '';
}
function parseVocabFromSearch() {
// Get the current URL
let url = window.location.href;
// Match the URL structure for a search query, capturing the vocab between `?q=` and either `&` or `+`
const match = url.match(/https:\/\/jpdb\.io\/search\?q=([^&+]*)/);
console.log("Parsing Search Page");
if (match) {
// Extract and decode the vocabulary part from the URL
let vocab = match[1];
return decodeURIComponent(vocab);
}
// Return empty string if no match
return '';
}
//EMBED FUNCTIONS=====================================================================================================================
function createAnchor(marginLeft) {
// Create and style an anchor element
const anchor = document.createElement('a');
anchor.href = '#';
anchor.style.border = '0';
anchor.style.display = 'inline-flex';
anchor.style.verticalAlign = 'middle';
anchor.style.marginLeft = marginLeft;
return anchor;
}
function createIcon(iconClass, fontSize = '1.4rem', color = '#3d81ff') {
// Create and style an icon element
const icon = document.createElement('i');
icon.className = iconClass;
icon.style.fontSize = fontSize;
icon.style.opacity = '1.0';
icon.style.verticalAlign = 'baseline';
icon.style.color = color;
return icon;
}
function createSpeakerButton(soundUrl) {
// Create a speaker button with an icon and click event for audio playback
const anchor = createAnchor('0.5rem');
const icon = createIcon('ti ti-volume');
anchor.appendChild(icon);
anchor.addEventListener('click', (event) => {
event.preventDefault();
playAudio(soundUrl);
});
return anchor;
}
function createMenuButton() {
// Create a menu button with a dropdown menu
const anchor = createAnchor('0.5rem');
const menuIcon = document.createElement('span');
menuIcon.innerHTML = '☰';
// Style the menu icon
menuIcon.style.fontSize = '1.4rem';
menuIcon.style.color = '#3D8DFF';
menuIcon.style.verticalAlign = 'middle';
menuIcon.style.position = 'relative';
menuIcon.style.top = '-2px';
// Append the menu icon to the anchor and set up the click event to show the overlay menu
anchor.appendChild(menuIcon);
anchor.addEventListener('click', (event) => {
event.preventDefault();
const overlay = createOverlayMenu();
document.body.appendChild(overlay);
});
return anchor;
}
function createTextButton(vocab) {
// Create a text button for Nadeshiko
const textButton = document.createElement('a');
textButton.textContent = 'Nadeshiko';
textButton.style.color = 'var(--subsection-label-color)';
textButton.style.fontSize = '85%';
textButton.style.marginRight = '0.5rem';
textButton.style.verticalAlign = 'middle';
textButton.href = `https://nadeshiko.co/search/sentence?query=${encodeURIComponent(vocab)}`;
textButton.target = '_blank';
return textButton;
}
function createButtonContainer(soundUrl, vocab) {
// Create a container for all buttons
const buttonContainer = document.createElement('div');
buttonContainer.className = 'button-container';
buttonContainer.style.display = 'flex';
buttonContainer.style.justifyContent = 'space-between';
buttonContainer.style.alignItems = 'center';
buttonContainer.style.marginBottom = '5px';
buttonContainer.style.lineHeight = '1.4rem';
// Create individual buttons
const menuButton = createMenuButton();
const textButton = createTextButton(vocab);
const speakerButton = createSpeakerButton(soundUrl);
// Center the buttons within the container
const centeredButtonsWrapper = document.createElement('div');
centeredButtonsWrapper.style.display = 'flex';
centeredButtonsWrapper.style.justifyContent = 'center';
centeredButtonsWrapper.style.flex = '1';
centeredButtonsWrapper.append(textButton, speakerButton);
buttonContainer.append(centeredButtonsWrapper, menuButton);
return buttonContainer;
}
function stopCurrentAudio() {
// Stop any currently playing audio
if (state.currentAudio) {
state.currentAudio.source.stop();
state.currentAudio.context.close();
state.currentAudio = null;
}
}
function playAudio(soundUrl) {
// Skip playing audio if it is already playing
if (state.currentlyPlayingAudio) {
//console.log('Duplicate audio was skipped.');
return;
}
if (soundUrl) {
state.currentlyPlayingAudio = true;
stopCurrentAudio();
GM_xmlhttpRequest({
method: 'GET',
url: soundUrl,
responseType: 'arraybuffer',
onload: function (response) {
const AudioContext = window.AudioContext || window.webkitAudioContext;
const audioContext = new AudioContext();
audioContext.decodeAudioData(response.response, function (buffer) {
const source = audioContext.createBufferSource();
source.buffer = buffer;
const gainNode = audioContext.createGain();
// Connect the source to the gain node and the gain node to the destination
source.connect(gainNode);
gainNode.connect(audioContext.destination);
// Mute the first part and then ramp up the volume
gainNode.gain.setValueAtTime(0, audioContext.currentTime);
gainNode.gain.linearRampToValueAtTime(CONFIG.SOUND_VOLUME / 100, audioContext.currentTime + 0.1);
// Play the audio, skip the first part to avoid any "pop"
source.start(0, 0.05);
// Log when the audio starts playing
//console.log('Audio has started playing.');
// Save the current audio context and source for stopping later
state.currentAudio = {
context: audioContext,
source: source
};
// Set currentlyPlayingAudio to false when the audio ends
source.onended = function () {
state.currentlyPlayingAudio = false;
};
}, function (error) {
console.error('Error decoding audio:', error);
state.currentlyPlayingAudio = false;
});
},
onerror: function (error) {
console.error('Error fetching audio:', error);
state.currentlyPlayingAudio = false;
}
});
}
}
// has to be declared (referenced in multiple functions but definition requires variables local to one function)
let hotkeysListener;
function renderImageAndPlayAudio(vocab, shouldAutoPlaySound) {
if (state.apiDataFetched === false) {
console.log("No data");
return;
}
const example = state.examples[state.currentExampleIndex] || {};
const imageUrl = example.media_info?.path_image || null;
const soundUrl = example.media_info?.path_audio || null;
const sentence = example.segment_info?.content_jp || null;
const translation = example.segment_info?.content_en || "";
const deck_name = example.basic_info?.name_anime_romaji || "Unknown Anime";
// Update sentence class content with actual sentence text
const sentenceElement = document.querySelector('.sentence');
if (sentenceElement) {
sentenceElement.textContent = sentence;
// Update translation class content with actual translation text
const translationElement = document.querySelector('.sentence-translation');
if (translationElement) {
translationElement.textContent = translation;
} else {
// get div above .card-sentence
const divAbove = sentenceElement.parentElement.parentElement;
if (divAbove) {
const translationDiv = document.createElement('div');
translationDiv.style.display = 'flex';
translationDiv.style.justifyContent = 'center';
translationDiv.innerHTML = `<div class="sentence-translation blur" style="" onclick="this.classList.remove('blur');" onmouseover="this.classList.remove('blur');">${translation}</div>`;
divAbove.appendChild(translationDiv);
}
}
} else {
const answerBox = document.querySelector('.answer-box');
if (answerBox) {
// create div style="display: flex; justify-content: center;"
const sentenceDiv = document.createElement('div');
sentenceDiv.style.display = 'flex';
sentenceDiv.style.justifyContent = 'center';
sentenceDiv.innerHTML = `<div style="display: flex;"><div style="display: flex; flex-direction: column;"><div style="display: flex; align-items: baseline; column-gap: 0.25rem;" class="card-sentence"><div class="sentence" style="margin-left: 0.3rem;">${sentence}</div><a class="icon-link" href="/edit-shown-sentence?v=1168870&s=3448502455&r=1858493110&origin=%2Freview%3Fc%3Dvf%2C1168870%2C3448502455%26r%3D2"><i class="ti ti-pencil"></i></a></div><div style="display: flex;justify-content: center;"><div class="sentence-translation blur" style="" onclick="this.classList.remove('blur');" onmouseover="this.classList.remove('blur');">${translation}</div></div></div></div>`;
answerBox.appendChild(sentenceDiv);
}
}
// Remove any existing container
removeExistingContainer();
if (!shouldRenderContainer()) {
return;
}
// Create and append the main wrapper and text button container
const wrapperDiv = createWrapperDiv();
const textDiv = createButtonContainer(soundUrl, vocab);
wrapperDiv.appendChild(textDiv);
const createTextElement = (text) => {
const textElement = document.createElement('div');
textElement.textContent = text;
textElement.style.padding = '100px 0';
textElement.style.whiteSpace = 'pre'; // Ensures newlines are respected
return textElement;
};
if (state.apiDataFetched) {
if (imageUrl) {
const imageElement = createImageElement(wrapperDiv, imageUrl, vocab, state.exactSearch);
if (imageElement) {
imageElement.addEventListener('click', () => playAudio(soundUrl));
}
} else {
wrapperDiv.appendChild(createTextElement(`NO IMAGE\n(${deck_name})`));
}
// Append sentence and translation or a placeholder text
// sentence ? appendSentenceAndTranslation(wrapperDiv, sentence, translation) : appendNoneText(wrapperDiv);
} else if (!sentence) {
wrapperDiv.appendChild(createTextElement('ERROR\nNO EXAMPLES FOUND\n\nRARE WORD OR NADESHIKO API IS TEMPORARILY DOWN'));
} else {
wrapperDiv.appendChild(createTextElement('LOADING'));
}
// Create navigation elements
const navigationDiv = createNavigationDiv();
const leftArrow = createLeftArrow(vocab, shouldAutoPlaySound);
const rightArrow = createRightArrow(vocab, shouldAutoPlaySound);
// Create and append the main container
const containerDiv = createContainerDiv(leftArrow, wrapperDiv, rightArrow, navigationDiv);
appendContainer(containerDiv);
// Auto-play sound if configured
if (CONFIG.AUTO_PLAY_SOUND && shouldAutoPlaySound) {
playAudio(soundUrl);
}
// Link hotkeys
if (CONFIG.HOTKEYS.indexOf("None") === -1) {
const leftHotkey = CONFIG.HOTKEYS[0];
const rightHotkey = CONFIG.HOTKEYS[1];
hotkeysListener = (event) => {
if (event.repeat) {
return;
}
switch (event.key.toLowerCase()) {
case leftHotkey.toLowerCase():
if (leftArrow.disabled) {
// listener gets removed, so need to re-add
window.addEventListener('keydown', hotkeysListener, {once: true});
} else {
leftArrow.click(); // don't need to re-add listener because renderImageAndPlayAudio() will run again
}
break;
case rightHotkey.toLowerCase():
if (rightArrow.disabled) {
// listener gets removed, so need to re-add
window.addEventListener('keydown', hotkeysListener, {once: true});
} else {
rightArrow.click(); // don't need to re-add listener because renderImageAndPlayAudio() will run again
}
break;
default:
// listener gets removed, so need to re-add
window.addEventListener('keydown', hotkeysListener, {once: true});
}
};
window.addEventListener('keydown', hotkeysListener, {once: true});
}
}
function removeExistingContainer() {
// Remove the existing container if it exists
const existingContainer = document.getElementById('nadeshiko-container');
if (existingContainer) {
existingContainer.remove();
}
window.removeEventListener('keydown', hotkeysListener);
}
function shouldRenderContainer() {
// Determine if the container should be rendered based on the presence of certain elements
const resultVocabularySection = document.querySelector('.result.vocabulary');
const hboxWrapSection = document.querySelector('.hbox.wrap');
const subsectionMeanings = document.querySelector('.subsection-meanings');
const subsectionLabels = document.querySelectorAll('h6.subsection-label');
return resultVocabularySection || hboxWrapSection || subsectionMeanings || subsectionLabels.length >= 3;
}
function createWrapperDiv() {
// Create and style the wrapper div
const wrapperDiv = document.createElement('div');
wrapperDiv.id = 'image-wrapper';
wrapperDiv.style.textAlign = 'center';
wrapperDiv.style.padding = '5px 0';
return wrapperDiv;
}
function createImageElement(wrapperDiv, imageUrl, vocab, exactSearch) {
// Create and return an image element with specified attributes
const searchVocab = exactSearch ? `「${vocab}」` : vocab;
const example = state.examples[state.currentExampleIndex] || {};
const deck_name = example.basic_info.name_anime_romaji || null;
// Extract the file name from the URL
let file_name = imageUrl.substring(imageUrl.lastIndexOf('/') + 1);
// Remove prefixes "Anime_", "A_", or "Z" from the file name
file_name = file_name.replace(/^(Anime_|A_|Z)/, '');
const titleText = `${searchVocab} #${state.currentExampleIndex + 1} \n${deck_name} \n${file_name}`;
return GM_addElement(wrapperDiv, 'img', {
src: imageUrl,
alt: 'Embedded Image',
title: titleText,
style: `max-width: ${CONFIG.IMAGE_WIDTH}; margin-top: 10px; cursor: pointer;`
});
}
function createNavigationDiv() {
// Create and style the navigation div
const navigationDiv = document.createElement('div');
navigationDiv.id = 'nadeshiko-embed';
navigationDiv.style.display = 'flex';
navigationDiv.style.justifyContent = 'center';
navigationDiv.style.alignItems = 'center';
navigationDiv.style.maxWidth = CONFIG.IMAGE_WIDTH;
navigationDiv.style.margin = '0 auto';
return navigationDiv;
}
function createLeftArrow(vocab, shouldAutoPlaySound) {
// Create and configure the left arrow button
const leftArrow = document.createElement('button');
leftArrow.textContent = '<';
leftArrow.style.marginRight = '10px';
leftArrow.style.width = CONFIG.ARROW_WIDTH;
leftArrow.style.height = CONFIG.ARROW_HEIGHT;
leftArrow.style.lineHeight = '25px';
leftArrow.style.textAlign = 'center';
leftArrow.style.display = 'flex';
leftArrow.style.justifyContent = 'center';
leftArrow.style.alignItems = 'center';
leftArrow.style.padding = '0'; // Remove padding
leftArrow.disabled = state.currentExampleIndex === 0;
leftArrow.addEventListener('click', () => {
if (state.currentExampleIndex > 0) {
state.currentExampleIndex--;
state.currentlyPlayingAudio = false;
renderImageAndPlayAudio(vocab, shouldAutoPlaySound);
preloadImages();
}
});
return leftArrow;
}
function createRightArrow(vocab, shouldAutoPlaySound) {
// Create and configure the right arrow button
const rightArrow = document.createElement('button');
rightArrow.textContent = '>';
rightArrow.style.marginLeft = '10px';
rightArrow.style.width = CONFIG.ARROW_WIDTH;
rightArrow.style.height = CONFIG.ARROW_HEIGHT;
rightArrow.style.lineHeight = '25px';
rightArrow.style.textAlign = 'center';
rightArrow.style.display = 'flex';
rightArrow.style.justifyContent = 'center';
rightArrow.style.alignItems = 'center';
rightArrow.style.padding = '0'; // Remove padding
rightArrow.disabled = state.currentExampleIndex >= state.examples.length - 1;
rightArrow.addEventListener('click', () => {
if (state.currentExampleIndex < state.examples.length - 1) {
state.currentExampleIndex++;
state.currentlyPlayingAudio = false;
renderImageAndPlayAudio(vocab, shouldAutoPlaySound);
preloadImages();
}
});
return rightArrow;
}
function createContainerDiv(leftArrow, wrapperDiv, rightArrow, navigationDiv) {
// Create and configure the main container div
const containerDiv = document.createElement('div');
containerDiv.id = 'nadeshiko-container';
containerDiv.style.display = 'flex';
containerDiv.style.alignItems = 'center';
containerDiv.style.justifyContent = 'center';
containerDiv.style.flexDirection = 'column';
const arrowWrapperDiv = document.createElement('div');
arrowWrapperDiv.style.display = 'flex';
arrowWrapperDiv.style.alignItems = 'center';
arrowWrapperDiv.style.justifyContent = 'center';
arrowWrapperDiv.append(leftArrow, wrapperDiv, rightArrow);
containerDiv.append(arrowWrapperDiv, navigationDiv);
return containerDiv;
}
function appendContainer(containerDiv) {
// Append the container div to the appropriate section based on configuration
const resultVocabularySection = document.querySelector('.result.vocabulary');
const hboxWrapSection = document.querySelector('.hbox.wrap');
const subsectionMeanings = document.querySelector('.subsection-meanings');
const subsectionComposedOfKanji = document.querySelector('.subsection-composed-of-kanji');
const subsectionPitchAccent = document.querySelector('.subsection-pitch-accent');
const subsectionLabels = document.querySelectorAll('h6.subsection-label');
const vboxGap = document.querySelector('.vbox.gap');
const styleSheet = document.querySelector('link[rel="stylesheet"]').sheet;
if (CONFIG.WIDE_MODE && subsectionMeanings) {
const wrapper = document.createElement('div');
wrapper.style.display = 'flex';
wrapper.style.alignItems = 'flex-start';
styleSheet.insertRule('.subsection-meanings { max-width: none !important; }', styleSheet.cssRules.length);
const originalContentWrapper = document.createElement('div');
originalContentWrapper.style.flex = '1';
originalContentWrapper.appendChild(subsectionMeanings);
if (subsectionComposedOfKanji) {
const newline1 = document.createElement('br');
originalContentWrapper.appendChild(newline1);
originalContentWrapper.appendChild(subsectionComposedOfKanji);
}
if (subsectionPitchAccent) {
const newline2 = document.createElement('br');
originalContentWrapper.appendChild(newline2);
originalContentWrapper.appendChild(subsectionPitchAccent);
}
if (CONFIG.DEFINITIONS_ON_RIGHT_IN_WIDE_MODE) {
wrapper.appendChild(containerDiv);
wrapper.appendChild(originalContentWrapper);
} else {
wrapper.appendChild(originalContentWrapper);
wrapper.appendChild(containerDiv);
}
if (vboxGap) {
const existingDynamicDiv = vboxGap.querySelector('#dynamic-content');
if (existingDynamicDiv) {
existingDynamicDiv.remove();
}
const dynamicDiv = document.createElement('div');
dynamicDiv.id = 'dynamic-content';
dynamicDiv.appendChild(wrapper);
if (window.location.href.includes('vocabulary')) {
vboxGap.insertBefore(dynamicDiv, vboxGap.children[1]);
} else {
vboxGap.insertBefore(dynamicDiv, vboxGap.firstChild);
}
}
} else {
if (state.embedAboveSubsectionMeanings && subsectionMeanings) {
subsectionMeanings.parentNode.insertBefore(containerDiv, subsectionMeanings);
} else if (resultVocabularySection) {
resultVocabularySection.parentNode.insertBefore(containerDiv, resultVocabularySection);
} else if (hboxWrapSection) {
hboxWrapSection.parentNode.insertBefore(containerDiv, hboxWrapSection);
} else if (subsectionLabels.length >= 4) {
subsectionLabels[3].parentNode.insertBefore(containerDiv, subsectionLabels[3]);
}
}
}
function embedImageAndPlayAudio() {
// Embed the image and play audio, removing existing navigation div if present
console.log("Embedding image and playing audio");
const existingNavigationDiv = document.getElementById('nadeshiko-embed');
if (existingNavigationDiv) {
existingNavigationDiv.remove();
}
const reviewUrlPattern = /https:\/\/jpdb\.io\/review(#a)?$/;
renderImageAndPlayAudio(state.vocab, !reviewUrlPattern.test(window.location.href));
preloadImages();
}
function preloadImages() {
// Preload images around the current example index
const preloadDiv = GM_addElement(document.body, 'div', {style: 'display: none;'});
const startIndex = Math.max(0, state.currentExampleIndex - CONFIG.NUMBER_OF_PRELOADS);
const endIndex = Math.min(state.examples.length - 1, state.currentExampleIndex + CONFIG.NUMBER_OF_PRELOADS);
for (let i = startIndex; i <= endIndex; i++) {
if (!state.preloadedIndices.has(i) && state.examples[i].image_url) {
GM_addElement(preloadDiv, 'img', {src: state.examples[i].image_url});
state.preloadedIndices.add(i);
}
}
}
//MENU FUNCTIONS=====================================================================================================================
function handleImportDButtonClick() {
handleFileInput('application/json', importData);
}
function handleFileInput(acceptType, callback) {
const fileInput = document.createElement('input');
fileInput.type = 'file';
fileInput.accept = acceptType;
fileInput.addEventListener('change', callback);
fileInput.click();
}
function createBlobAndDownload(data, filename, type) {
const blob = new Blob([data], {type});
const url = URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = url;
a.download = filename;
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
URL.revokeObjectURL(url);
}
async function exportData() {
const dataEntries = {};
try {
const db = await IndexedDBManager.open();
const indexedDBData = await IndexedDBManager.getAll(db);
indexedDBData.forEach(item => {
dataEntries[item.keyword] = item.data;
});
const data = JSON.stringify(dataEntries, null, 2);
createBlobAndDownload(data, 'data.json', 'application/json');
} catch (error) {
console.error('Error exporting data from IndexedDB:', error);
}
}
async function importData(event) {
const file = event.target.files[0];
if (!file) {
return;
}
const reader = new FileReader();
reader.onload = async function (e) {
try {
const dataEntries = JSON.parse(e.target.result);
const db = await IndexedDBManager.open();
for (const key in dataEntries) {
await IndexedDBManager.save(db, key, dataEntries[key]);
}
alert('Data imported successfully!');
location.reload();
} catch (error) {
alert('Error importing data:', error);
}
};
reader.readAsText(file);
}
////CONFIRMATION
function createConfirmationPopup(messageText, onYes, onNo) {
// Create a confirmation popup with Yes and No buttons
const popupOverlay = document.createElement('div');
popupOverlay.style.position = 'fixed';
popupOverlay.style.top = '0';
popupOverlay.style.left = '0';
popupOverlay.style.width = '100%';
popupOverlay.style.height = '100%';
popupOverlay.style.backgroundColor = 'rgba(0, 0, 0, 0.75)';
popupOverlay.style.zIndex = '1001';
popupOverlay.style.display = 'flex';
popupOverlay.style.justifyContent = 'center';
popupOverlay.style.alignItems = 'center';
const popupContent = document.createElement('div');
popupContent.style.backgroundColor = 'var(--background-color)';
popupContent.style.padding = '20px';
popupContent.style.borderRadius = '5px';
popupContent.style.boxShadow = '0 0 10px rgba(0, 0, 0, 0.5)';
popupContent.style.textAlign = 'center';
const message = document.createElement('p');
message.textContent = messageText;
const yesButton = document.createElement('button');
yesButton.textContent = 'Yes';
yesButton.style.backgroundColor = '#C82800';
yesButton.style.marginRight = '10px';
yesButton.addEventListener('click', () => {
onYes();
document.body.removeChild(popupOverlay);
});
const noButton = document.createElement('button');
noButton.textContent = 'No';
noButton.addEventListener('click', () => {
onNo();
document.body.removeChild(popupOverlay);
});
popupContent.appendChild(message);
popupContent.appendChild(yesButton);
popupContent.appendChild(noButton);
popupOverlay.appendChild(popupContent);
document.body.appendChild(popupOverlay);
}
////BUTTONS
function createActionButtonsContainer() {
const actionButtonWidth = '100px';
const closeButton = createButton('Close', '10px', closeOverlayMenu, actionButtonWidth);
const saveButton = createButton('Save', '10px', saveConfig, actionButtonWidth);
const defaultButton = createDefaultButton(actionButtonWidth);
const deleteButton = createDeleteButton(actionButtonWidth);
const actionButtonsContainer = document.createElement('div');
actionButtonsContainer.style.textAlign = 'center';
actionButtonsContainer.style.marginTop = '10px';
actionButtonsContainer.append(closeButton, saveButton, defaultButton, deleteButton);
return actionButtonsContainer;
}
function createMenuButtons() {
const dataContainer = createDataContainer();
const actionButtonsContainer = createActionButtonsContainer();
const buttonContainer = document.createElement('div');
buttonContainer.append(dataContainer, actionButtonsContainer);
return buttonContainer;
}
function createButton(text, margin, onClick, width) {
// Create a button element with specified properties
const button = document.createElement('button');
button.textContent = text;
button.style.margin = margin;
button.style.width = width;
button.style.textAlign = 'center';
button.style.display = 'inline-block';
button.style.lineHeight = '30px';
button.style.padding = '5px 0';
button.addEventListener('click', onClick);
return button;
}
////DATA BUTTONS
function createDataContainer() {
const dataButtonWidth = '200px';
const exportButton = createButton('Export Data', '10px', exportData, dataButtonWidth);
const importButton = createButton('Import Data', '10px', handleImportDButtonClick, dataButtonWidth);
const dataContainer = document.createElement('div');
dataContainer.style.textAlign = 'center';
dataContainer.style.marginTop = '10px';
dataContainer.append(exportButton, importButton);
return dataContainer;
}
////CLOSE BUTTON
function closeOverlayMenu() {
loadConfig();
document.body.removeChild(document.getElementById('overlayMenu'));
}
////SAVE BUTTON
function saveConfig() {
const overlay = document.getElementById('overlayMenu');
if (!overlay) {
return;
}
const inputs = overlay.querySelectorAll('input, span');
console.log(inputs);
const {changes, minimumExampleLengthChanged, newMinimumExampleLength} = gatherChanges(inputs);
if (minimumExampleLengthChanged) {
handleMinimumExampleLengthChange(newMinimumExampleLength, changes);
} else {
applyChanges(changes);
finalizeSaveConfig();
setVocabSize();
setPageWidth();
}
}
function gatherChanges(inputs) {
let minimumExampleLengthChanged = false;
let newMinimumExampleLength;
const changes = {};
inputs.forEach(input => {
const key = input.getAttribute('data-key');
const type = input.getAttribute('data-type');
let value;
if (type === 'boolean') {
value = input.checked;
} else if (type === 'number') {
value = parseFloat(input.textContent);
} else if (type === 'string') {
value = input.textContent;
} else if (type === 'object' && key === 'HOTKEYS') {
value = input.textContent.replace(' and ', ' ');
}
if (key && type) {
const typePart = input.getAttribute('data-type-part');
const originalFormattedType = typePart.slice(1, -1);
if (key === 'MINIMUM_EXAMPLE_LENGTH' && CONFIG.MINIMUM_EXAMPLE_LENGTH !== value) {
minimumExampleLengthChanged = true;
newMinimumExampleLength = value;
}
if (key === 'MAXIMUM_EXAMPLE_LENGTH' && CONFIG.MAXIMUM_EXAMPLE_LENGTH !== value) {
value = Math.max(value, CONFIG.MINIMUM_EXAMPLE_LENGTH);
}
changes[configPrefix + key] = value + originalFormattedType;
}
});
return {changes, minimumExampleLengthChanged, newMinimumExampleLength};
}
function handleMinimumExampleLengthChange(newMinimumExampleLength, changes) {
createConfirmationPopup(
'Changing Minimum Example Length will reset your cache and sentences will take longer to load at first Are you sure?',
async () => {
await IndexedDBManager.delete();
CONFIG.MINIMUM_EXAMPLE_LENGTH = newMinimumExampleLength;
setItem(`${configPrefix}MINIMUM_EXAMPLE_LENGTH`, newMinimumExampleLength);
applyChanges(changes);
clearNonConfigLocalStorage();
finalizeSaveConfig();
location.reload();
},
() => {
const overlay = document.getElementById('overlayMenu');
document.body.removeChild(overlay);
document.body.appendChild(createOverlayMenu());
}
);
}
function clearNonConfigLocalStorage() {
for (let i = 0; i < localStorage.length; i++) {
const key = localStorage.key(i);
if (key && key.startsWith(scriptPrefix) && !key.startsWith(scriptPrefix + configPrefix)) {
localStorage.removeItem(key);
i--; // Adjust index after removal
}
}
}
function applyChanges(changes) {
for (const key in changes) {
setItem(key, changes[key]);
}
}
function finalizeSaveConfig() {
loadConfig();
window.removeEventListener('keydown', hotkeysListener);
renderImageAndPlayAudio(state.vocab, CONFIG.AUTO_PLAY_SOUND);
const overlay = document.getElementById('overlayMenu');
if (overlay) {
document.body.removeChild(overlay);
}
}
////DEFAULT BUTTON
function createDefaultButton(width) {
const defaultButton = createButton('Default', '10px', () => {
createConfirmationPopup(
'This will reset all your settings to default. Are you sure?',
() => {
Object.keys(localStorage).forEach(key => {
if (key.startsWith(scriptPrefix + configPrefix)) {
localStorage.removeItem(key);
}
});
location.reload();
},
() => {
const overlay = document.getElementById('overlayMenu');
if (overlay) {
document.body.removeChild(overlay);
}
loadConfig();
document.body.appendChild(createOverlayMenu());
}
);
}, width);
defaultButton.style.backgroundColor = '#C82800';
defaultButton.style.color = 'white';
return defaultButton;
}
////DELETE BUTTON
function createDeleteButton(width) {
const deleteButton = createButton('DELETE', '10px', () => {
createConfirmationPopup(
'This will delete all cached data. Are you sure?',
async () => {
await IndexedDBManager.delete();
Object.keys(localStorage).forEach(key => {
if (key.startsWith(scriptPrefix) && !key.startsWith(scriptPrefix + configPrefix)) {
localStorage.removeItem(key);
}
});
location.reload();
},
() => {
const overlay = document.getElementById('overlayMenu');
if (overlay) {
document.body.removeChild(overlay);
}
loadConfig();
document.body.appendChild(createOverlayMenu());
}
);
}, width);
deleteButton.style.backgroundColor = '#C82800';
deleteButton.style.color = 'white';
return deleteButton;
}
function createOverlayMenu() {
// Create and return the overlay menu for configuration settings
const overlay = document.createElement('div');
overlay.id = 'overlayMenu';
overlay.style.position = 'fixed';
overlay.style.top = '0';
overlay.style.left = '0';
overlay.style.width = '100%';
overlay.style.height = '100%';
overlay.style.backgroundColor = 'rgba(0, 0, 0, 0.75)';
overlay.style.zIndex = '1000';
overlay.style.display = 'flex';
overlay.style.justifyContent = 'center';
overlay.style.alignItems = 'center';
const menuContent = document.createElement('div');
menuContent.style.backgroundColor = 'var(--background-color)';
menuContent.style.color = 'var(--text-color)';
menuContent.style.padding = '20px';
menuContent.style.borderRadius = '5px';
menuContent.style.boxShadow = '0 0 10px rgba(0, 0, 0, 0.5)';
menuContent.style.width = '80%';
menuContent.style.maxWidth = '550px';
menuContent.style.maxHeight = '80%';
menuContent.style.overflowY = 'auto';
// Make a button to upload the json history file
const uploadButton = document.createElement('button');
uploadButton.textContent = 'Upload History JSON';
uploadButton.style.margin = '10px';
uploadButton.addEventListener('click', async () => {
const fileInput = document.createElement('input');
fileInput.type = 'file';
fileInput.accept = '.json';
fileInput.style.display = 'none';
fileInput.addEventListener('change', async (event) => {
const file = event.target.files[0];
if (file) {
const reader = new FileReader();
reader.onload = async (e) => {
try {
const data = JSON.parse(e.target.result);
console.log('Parsed data:', data);
const db = await IndexedDBManager.open();
await IndexedDBManager.importJPDBData(db, data).then(() => {
alert('History imported successfully!');
// Reload the page to reflect changes
location.reload();
}
).catch((error) => {
console.error('Error importing data:', error);
alert('Failed to import history. Please check the console for details.');
console.log(data);
});
} catch (error) {
console.error('Error parsing JSON:', error);
alert('Invalid JSON file. Please upload a valid JPDB history file.');
console.log(data);
}
};
reader.readAsText(file);
}
});
document.body.appendChild(fileInput);
fileInput.click();
})
menuContent.appendChild(uploadButton);
for (const [key, value] of Object.entries(CONFIG)) {
const optionContainer = document.createElement('div');
optionContainer.style.marginBottom = '10px';
optionContainer.style.display = 'flex';
optionContainer.style.alignItems = 'center';
const leftContainer = document.createElement('div');
leftContainer.style.flex = '1';
leftContainer.style.display = 'flex';
leftContainer.style.alignItems = 'center';
const rightContainer = document.createElement('div');
rightContainer.style.flex = '1';
rightContainer.style.display = 'flex';
rightContainer.style.alignItems = 'center';
rightContainer.style.justifyContent = 'center';
const label = document.createElement('label');
label.textContent = key.replace(/_/g, ' ').split(' ').map(word => word.charAt(0).toUpperCase() + word.slice(1).toLowerCase()).join(' ');
label.style.marginRight = '10px';
leftContainer.appendChild(label);
if (key === 'RANDOM_SENTENCE') {
const select = document.createElement('select');
select.setAttribute('data-key', key);
// Add options to the select dropdown for the enum values
for (const [enumKey, enumValue] of Object.entries(RANDOM_SENTENCE_ENUM)) {
const option = document.createElement('option');
option.value = enumValue;
option.text = enumKey.replace(/_/g, ' ').toLowerCase();
option.selected = value === enumValue; // Set the current value as selected
select.appendChild(option);
}
select.addEventListener('change', (event) => {
CONFIG[key] = parseInt(event.target.value, 10); // Update the config with the selected value
localStorage.setItem(`${scriptPrefix + configPrefix}${key}`, event.target.value); // Save to localStorage
});
rightContainer.appendChild(select);
} else if (typeof value === 'boolean') {
const checkboxContainer = document.createElement('div');
checkboxContainer.style.display = 'flex';
checkboxContainer.style.alignItems = 'center';
checkboxContainer.style.justifyContent = 'center';
const checkbox = document.createElement('input');
checkbox.type = 'checkbox';
checkbox.checked = value;
checkbox.setAttribute('data-key', key);
checkbox.setAttribute('data-type', 'boolean');
checkbox.setAttribute('data-type-part', '');
checkboxContainer.appendChild(checkbox);
rightContainer.appendChild(checkboxContainer);
} else if (typeof value === 'number') {
const numberContainer = document.createElement('div');
numberContainer.style.display = 'flex';
numberContainer.style.alignItems = 'center';
numberContainer.style.justifyContent = 'center';
const decrementButton = document.createElement('button');
decrementButton.textContent = '-';
decrementButton.style.marginRight = '5px';
const input = document.createElement('span');
input.textContent = value;
input.style.margin = '0 10px';
input.style.minWidth = '3ch';
input.style.textAlign = 'center';
input.setAttribute('data-key', key);
input.setAttribute('data-type', 'number');
input.setAttribute('data-type-part', '');
const incrementButton = document.createElement('button');
incrementButton.textContent = '+';
incrementButton.style.marginLeft = '5px';
const updateButtonStates = () => {
let currentValue = parseFloat(input.textContent);
if (currentValue <= 0) {
decrementButton.disabled = true;
decrementButton.style.color = 'grey';
} else {
decrementButton.disabled = false;
decrementButton.style.color = '';
}
if (key === 'SOUND_VOLUME' && currentValue >= 100) {
incrementButton.disabled = true;
incrementButton.style.color = 'grey';
} else {
incrementButton.disabled = false;
incrementButton.style.color = '';
}
};
decrementButton.addEventListener('click', () => {
let currentValue = parseFloat(input.textContent);
if (currentValue > 0) {
if (currentValue > 200) {
input.textContent = currentValue - 25;
} else if (currentValue > 20) {
input.textContent = currentValue - 5;
} else {
input.textContent = currentValue - 1;
}
updateButtonStates();
}
});
incrementButton.addEventListener('click', () => {
let currentValue = parseFloat(input.textContent);
if (key === 'SOUND_VOLUME' && currentValue >= 100) {
return;
}
if (currentValue >= 200) {
input.textContent = currentValue + 25;
} else if (currentValue >= 20) {
input.textContent = currentValue + 5;
} else {
input.textContent = currentValue + 1;
}
updateButtonStates();
});
numberContainer.appendChild(decrementButton);
numberContainer.appendChild(input);
numberContainer.appendChild(incrementButton);
rightContainer.appendChild(numberContainer);
// Initialize button states
updateButtonStates();
} else if (typeof value === 'string') {
const typeParts = value.split(/(\d+)/).filter(Boolean);
const numberParts = typeParts.filter(part => !isNaN(part)).map(Number);
const numberContainer = document.createElement('div');
numberContainer.style.display = 'flex';
numberContainer.style.alignItems = 'center';
numberContainer.style.justifyContent = 'center';
const typeSpan = document.createElement('span');
const formattedType = '(' + typeParts.filter(part => isNaN(part)).join('').replace(/_/g, ' ').toLowerCase() + ')';
typeSpan.textContent = formattedType;
typeSpan.style.marginRight = '10px';
leftContainer.appendChild(typeSpan);
typeParts.forEach(part => {
if (!isNaN(part)) {
const decrementButton = document.createElement('button');
decrementButton.textContent = '-';
decrementButton.style.marginRight = '5px';
const input = document.createElement('span');
input.textContent = part;
input.style.margin = '0 10px';
input.style.minWidth = '3ch';
input.style.textAlign = 'center';
input.setAttribute('data-key', key);
input.setAttribute('data-type', 'string');
input.setAttribute('data-type-part', formattedType);
const incrementButton = document.createElement('button');
incrementButton.textContent = '+';
incrementButton.style.marginLeft = '5px';
const updateButtonStates = () => {
let currentValue = parseFloat(input.textContent);
if (currentValue <= 0) {
decrementButton.disabled = true;
decrementButton.style.color = 'grey';
} else {
decrementButton.disabled = false;
decrementButton.style.color = '';
}
if (key === 'SOUND_VOLUME' && currentValue >= 100) {
incrementButton.disabled = true;
incrementButton.style.color = 'grey';
} else {
incrementButton.disabled = false;
incrementButton.style.color = '';
}
};
decrementButton.addEventListener('click', () => {
let currentValue = parseFloat(input.textContent);
if (currentValue > 0) {
if (currentValue > 200) {
input.textContent = currentValue - 25;
} else if (currentValue > 20) {
input.textContent = currentValue - 5;
} else {
input.textContent = currentValue - 1;
}
updateButtonStates();
}
});
incrementButton.addEventListener('click', () => {
let currentValue = parseFloat(input.textContent);
if (key === 'SOUND_VOLUME' && currentValue >= 100) {
return;
}
if (currentValue >= 200) {
input.textContent = currentValue + 25;
} else if (currentValue >= 20) {
input.textContent = currentValue + 5;
} else {
input.textContent = currentValue + 1;
}
updateButtonStates();
});
numberContainer.appendChild(decrementButton);
numberContainer.appendChild(input);
numberContainer.appendChild(incrementButton);
// Initialize button states
updateButtonStates();
}
});
rightContainer.appendChild(numberContainer);
} else if (typeof value === 'object') {
const maxAllowedIndex = hotkeyOptions.length - 1;
let currentValue = value;
let choiceIndex = hotkeyOptions.indexOf(currentValue.join(' '));
if (choiceIndex === -1) {
currentValue = hotkeyOptions[0].split(' ');
choiceIndex = 0;
}
const textContainer = document.createElement('div');
textContainer.style.display = 'flex';
textContainer.style.alignItems = 'center';
textContainer.style.justifyContent = 'center';
const decrementButton = document.createElement('button');
decrementButton.textContent = '<';
decrementButton.style.marginRight = '5px';
const input = document.createElement('span');
input.textContent = currentValue.join(' and ');
input.style.margin = '0 10px';
input.style.minWidth = '3ch';
input.style.textAlign = 'center';
input.setAttribute('data-key', key);
input.setAttribute('data-type', 'object');
input.setAttribute('data-type-part', '');
const incrementButton = document.createElement('button');
incrementButton.textContent = '>';
incrementButton.style.marginLeft = '5px';
const updateButtonStates = () => {
if (choiceIndex <= 0) {
decrementButton.disabled = true;
decrementButton.style.color = 'grey';
} else {
decrementButton.disabled = false;
decrementButton.style.color = '';
}
if (choiceIndex >= maxAllowedIndex) {
incrementButton.disabled = true;
incrementButton.style.color = 'grey';
} else {
incrementButton.disabled = false;
incrementButton.style.color = '';
}
};
decrementButton.addEventListener('click', () => {
if (choiceIndex > 0) {
choiceIndex -= 1;
currentValue = hotkeyOptions[choiceIndex].split(' ');
input.textContent = currentValue.join(' and ');
updateButtonStates();
}
});
incrementButton.addEventListener('click', () => {
if (choiceIndex < maxAllowedIndex) {
choiceIndex += 1;
currentValue = hotkeyOptions[choiceIndex].split(' ');
input.textContent = currentValue.join(' and ');
updateButtonStates();
}
});
textContainer.appendChild(decrementButton);
textContainer.appendChild(input);
textContainer.appendChild(incrementButton);
// Initialize button states
updateButtonStates();
rightContainer.appendChild(textContainer);
}
optionContainer.appendChild(leftContainer);
optionContainer.appendChild(rightContainer);
menuContent.appendChild(optionContainer);
}
const menuButtons = createMenuButtons();
menuContent.appendChild(menuButtons);
overlay.appendChild(menuContent);
return overlay;
}
function loadConfig() {
for (const key in localStorage) {
if (!key.startsWith(scriptPrefix + configPrefix) || !localStorage.hasOwnProperty(key)) {
continue;
}
const configKey = key.substring((scriptPrefix + configPrefix).length); // chop off script prefix and config prefix
if (!CONFIG.hasOwnProperty(configKey)) {
continue;
}
const savedValue = localStorage.getItem(key);
if (savedValue === null) {
continue;
}
const valueType = typeof CONFIG[configKey];
if (configKey === 'RANDOM_SENTENCE') {
if (savedValue == 0) {
CONFIG[configKey] = RANDOM_SENTENCE_ENUM.DISABLE;
}
if (savedValue == 1) {
CONFIG[configKey] = RANDOM_SENTENCE_ENUM.ON_FIRST;
}
if (savedValue == 2) {
CONFIG[configKey] = RANDOM_SENTENCE_ENUM.EVERY_TIME;
}
} else if (configKey === 'HOTKEYS') {
CONFIG[configKey] = savedValue.split(' ');
} else if (valueType === 'boolean') {
CONFIG[configKey] = savedValue === 'true';
if (configKey === 'DEFAULT_TO_EXACT_SEARCH') {
state.exactSearch = CONFIG.DEFAULT_TO_EXACT_SEARCH;
}
// I wonder if this is the best way to do this...
// Probably not because we could just have a single variable to store both, but it would have to be in config and
// it would be a bit weird to have the program modifying config when the actual config settings aren't changing
} else if (valueType === 'number') {
CONFIG[configKey] = parseFloat(savedValue);
} else if (valueType === 'string') {
CONFIG[configKey] = savedValue;
}
}
}
async function process_sentences(state, sentences, first_call) {
// Early return for empty array or single item (no processing needed)
if (!sentences || !Array.isArray(sentences) || sentences.length <= 1) {
return sentences;
}
// Only randomize if needed
const shouldRandomize = CONFIG.RANDOM_SENTENCE >
(first_call ? RANDOM_SENTENCE_ENUM.DISABLE : RANDOM_SENTENCE_ENUM.ON_FIRST);
// Skip weight calculation if not needed
if (!CONFIG.WEIGHTED_SENTENCES && !shouldRandomize) {
return sentences;
}
// Randomize sentences if needed
if (shouldRandomize) {
// Use Fisher-Yates shuffle for better performance
// Only shuffle a maximum of 50 items for large arrays to improve performance
const maxShuffleItems = Math.min(sentences.length, 50);
// Optimized weighted random algorithm
const getWeightedRandomIndex = async (max) => {
// Pre-calculate weights array for performance
const weights = new Array(max);
let totalWeight = 0;
for (let i = 0; i < max; i++) {
if (!sentences[i] || !sentences[i].weight) {
await preprocessSentence(sentences[i]);
}
const weight = (sentences[i].weight || 1);
weights[i] = weight;
totalWeight += weight;
}
// Get random value proportional to total weight
const random = Math.random() * totalWeight;
let cumulativeWeight = 0;
// Find the index
for (let i = 0; i < max; i++) {
cumulativeWeight += weights[i];
if (random <= cumulativeWeight) {
return i;
}
}
return max - 1; // Fallback
};
// Fisher-Yates shuffle with weighted randomization
for (let i = maxShuffleItems - 1; i > 0; i--) {
console.log(maxShuffleItems - i, "/", maxShuffleItems)
const j = CONFIG.WEIGHTED_SENTENCES ?
await getWeightedRandomIndex(i + 1) :
Math.floor(Math.random() * (i + 1));
// Swap elements
if (i !== j) {
[sentences[i], sentences[j]] = [sentences[j], sentences[i]];
}
}
}
return sentences;
}
//MAIN FUNCTIONS=====================================================================================================================
async function onPageLoad() {
// Initialize state and determine vocabulary based on URL
state.embedAboveSubsectionMeanings = false;
// Early layout adjustments without waiting
setPageWidth();
const sentenceElement = document.querySelector('.sentence');
if (sentenceElement) {
const defaultSentence = sentenceElement.textContent.trim();
if (defaultSentence) {
state.examples = [{segment_info: {content_jp: defaultSentence}}];
}
sentenceElement.textContent = "Waiting for data...";
}
const machineTranslationFrame = document.getElementById('machine-translation-frame');
// Skip if machine translation frame is present
if (machineTranslationFrame) {
return;
}
// Determine the vocabulary based on URL — done in parallel with setting page width
const url = window.location.href;
console.log(url)
if (url.includes('/vocabulary/')) {
[state.vocab, state.reading] = parseVocabFromVocabulary();
} else if (url.includes('/search?q=')) { // TODO : get reading from search
state.vocab = parseVocabFromSearch();
} else if (url.includes('c=')) {
[state.vocab, state.reading] = parseVocabFromAnswer();
} else if (url.includes('/kanji/')) {
state.vocab = parseVocabFromKanji();
} else if (url.includes('/deck')) {
const vocabElements = document.querySelectorAll('.vocabulary-spelling');
if (vocabElements.length > 0) {
const preprocessBtn = document.createElement('button');
preprocessBtn.textContent = 'Preprocess All Words';
preprocessBtn.style.margin = '10px';
preprocessBtn.addEventListener('click', async () => {
preprocessBtn.disabled = true;
const tasks = Array.from(vocabElements).map(async (vocabElement) => {
const aTag = vocabElement.querySelector('a');
const href = aTag?.getAttribute('href') || '';
// Split the path into segments
const segments = href.split('/');
// The word is in the 4th segment (index 3)
const lastSegment = segments[3] || '';
// Remove the fragment part after # and get reading
const rubyElements = aTag.querySelectorAll('ruby');
let vocab = '';
let reading = '';
if (rubyElements.length > 0) {
// Build vocab and reading from ruby elements
rubyElements.forEach(ruby => {
const rt = ruby.querySelector('rt');
vocab += ruby.childNodes[0]?.textContent.trim() || '';
reading += rt?.textContent.trim() || ruby.textContent.trim();
});
} else {
// No ruby elements, just use the text content
vocab = decodeURIComponent(lastSegment.split('#')[0]);
reading = vocab;
}
if (vocab) {
try {
await getNadeshikoData(vocab, state.exactSearch, reading);
} catch (e) {
console.error('Error preprocessing vocab:', vocab, e);
}
}
});
await Promise.all(tasks);
alert('Preprocessing complete!');
});
const entriesAmountTextElem = [...document.querySelectorAll('p')].find(
(elem) => elem.innerText.startsWith('Showing') && elem.innerText.endsWith('entries')
);
entriesAmountTextElem.parentNode.insertBefore(preprocessBtn, entriesAmountTextElem);
}
} else {
[state.vocab, state.reading] = parseVocabFromReview();
}
// Early return if no vocabulary is found
if (!state.vocab) {
return;
}
// Fetch data if needed, process in parallel threads where possible
if (!state.apiDataFetched) {
try {
await getNadeshikoData(state.vocab, state.exactSearch);
// Process sentences in parallel with preloading images
const processingPromise = process_sentences(state, state.examples, true);
const preloadPromise = Promise.resolve().then(() => preloadImages());
state.examples = await processingPromise;
// Wait for preloading to complete
await preloadPromise;
// Finally, display the example
embedImageAndPlayAudio();
} catch (error) {
// Handle errors silently for better performance
state.error = true;
embedImageAndPlayAudio(); // Still try to show what we can
}
} else if (state.apiDataFetched) {
// Update display and settings
await Promise.all([
Promise.resolve().then(() => embedImageAndPlayAudio()),
Promise.resolve().then(() => setVocabSize())
]);
}
}
function setPageWidth() {
// Set the maximum width of the page
document.body.style.maxWidth = CONFIG.PAGE_WIDTH;
}
// Observe URL changes and reload the page content accordingly
const observer = new MutationObserver(() => {
if (window.location.href !== observer.lastUrl) {
observer.lastUrl = window.location.href;
onPageLoad();
}
});
// Function to apply styles
function setVocabSize() {
// Create a new style element
const style = document.createElement('style');
style.type = 'text/css';
style.innerHTML = `
.answer-box > .plain {
font-size: ${CONFIG.VOCAB_SIZE} !important; /* Use the configurable font size */
padding-bottom: 0.1rem !important; /* Retain padding */
}
`;
// Append the new style to the document head
document.head.appendChild(style);
}
observer.lastUrl = window.location.href;
observer.observe(document, {subtree: true, childList: true});
// Add event listeners for page load and URL changes
window.addEventListener('load', onPageLoad);
window.addEventListener('popstate', onPageLoad);
window.addEventListener('hashchange', onPageLoad);
// Initial configuration and preloading
loadConfig();
setPageWidth();
setVocabSize();
//preloadImages();
})();