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fix(work codes): adapt GEMA parsing to new search #896

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2 changes: 1 addition & 1 deletion README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -29,7 +29,7 @@ Blinds editor and voter details before your votes are cast.

## MB: Bulk copy-paste work codes

Quickly copy-paste work identifiers (ISWC, agency work codes) from [CISAC's ISWCNet](https://iswcnet.cisac.org/search) or [GEMA repertoire search](https://online.gema.de/werke/search.faces?lang=en) into a MusicBrainz work.
Quickly copy-paste work identifiers (ISWC, agency work codes) from [CISAC's ISWCNet](https://iswcnet.cisac.org/search) or [GEMA repertoire search](https://portal.gema.de/app/repertoiresuche/werksuche) into a MusicBrainz work.

[![Install](https://img.shields.io/badge/install-latest-informational?style=for-the-badge&logo=tampermonkey)](mb_bulk_copy_work_codes.user.js?raw=1)
[![Source](https://img.shields.io/badge/source-grey?style=for-the-badge&logo=github)](mb_bulk_copy_work_codes.user.js)
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86 changes: 48 additions & 38 deletions mb_bulk_copy_work_codes.user.js
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Original file line number Diff line number Diff line change
@@ -1,14 +1,14 @@
// ==UserScript==
// @name MB: Bulk copy-paste work codes
// @version 2025.3.10
// @version 2026.5.25
// @description Copy work identifiers from various online repertoires and paste them into MB works with ease.
// @author ROpdebee
// @license MIT; https://opensource.org/licenses/MIT
// @namespace https://github.com/ROpdebee/mb-userscripts
// @downloadURL https://raw.github.com/ROpdebee/mb-userscripts/main/mb_bulk_copy_work_codes.user.js
// @updateURL https://raw.github.com/ROpdebee/mb-userscripts/main/mb_bulk_copy_work_codes.user.js
// @match https://iswcnet.cisac.org/*
// @match https://online.gema.de/werke/search.faces*
// @match https://portal.gema.de/app/repertoiresuche/werksuche
// @match *://musicbrainz.org/*/edit
// @match *://*.musicbrainz.org/*/edit
// @match *://musicbrainz.org/release/*/edit-relationships
Expand Down Expand Up @@ -714,72 +714,82 @@ function handleISWCNet() {

function handleGEMA() {

function findAgencyWorkCodes(tr) {
function findAgencyWorkCodes(trHeader) {
return {
'GEMA': [
tr.querySelector('.workSocworkcde').innerText.match(/(\d{0,8})[\-‐](\d{3})/)[0],
trHeader.querySelector('td.mat-column-werkfassungsnummer').innerText.match(/(\d{0,8})[\-‐](\d{3})/)[0],
],
};
}

function findIswcs(tr) {
function findIswcs(trBody) {
return [
tr.querySelector('.workIswc').innerText.match(iswcRegex)[0],
trBody.querySelector('[data-selector="werkinformation-iswc"]').innerText.match(iswcRegex)[0],
];
}

function findTitle(tr) {
return tr.querySelector('.workSearchedTitle').innerText;
function findTitle(trHeader) {
return trHeader.querySelector('.mat-column-titel').innerText;
}

function parseAndCopy(tr) {
let workCodes = findAgencyWorkCodes(tr);
let iswcs = findIswcs(tr);
let title = findTitle(tr);
function parseAndCopy(trHeader, trBody) {
let workCodes = findAgencyWorkCodes(trHeader);
let iswcs = findIswcs(trBody);
let title = findTitle(trHeader);

storeData('GEMA Repertoire Search', iswcs, workCodes, title);
}

function injectButtons(parentNode = document) {
parentNode.querySelectorAll('[id="auswahlForm:searchResultItems:tb"] > tr').forEach((tr) => {
let button = document.createElement('button');
button.innerText = 'Copy work codes';
button.addEventListener('click', (event) => {
event.preventDefault();
parseAndCopy(tr);
});
tr.querySelector('.empty').prepend(button);
function injectButtons(trHeader) {
const trBody = trHeader.nextElementSibling;
let button = document.createElement('button');
button.innerText = 'Copy work codes';
button.addEventListener('click', (event) => {
event.preventDefault();
parseAndCopy(trHeader, trBody);
});
trBody.querySelector("td").prepend(button);
}

/** @type {MutationCallback} */
function handleChangeGEMA(mutationRec) {
if (mutationRec.length == 0 || mutationRec[0].addedNodes.length == 0) return; // Not an addition

const searchResults = mutationRec[0].addedNodes[0];
if (searchResults.nodeType !== Node.ELEMENT_NODE) return;

injectButtons(searchResults);
function handleChangeGEMA(records, observer) {
for (const record of records) {
for (const node of record.addedNodes) {
if (node.nodeType !== Node.ELEMENT_NODE) continue;
if (node.classList.contains("collapsed-werk-row")) {
injectButtons(node)
}
}
}
}

// GEMA overwrites `JSON.stringify()` with a custom implementation which causes `JSON.parse()` to fail on MB.
// Restore it again using the original implementation which seems to be backed up as `Object.toJSON()`.
if (Object.toJSON) {
JSON.stringify = Object.toJSON;
function initGEMA(records, initObserver) {
for (const record of records) {
if (record.addedNodes === undefined) continue;
const container = record.addedNodes.values()
.filter(node => node.nodeType === Node.ELEMENT_NODE)
.find(node => node.tagName.toLowerCase() === "ers-werksuche");
if (container !== undefined) {
initObserver.disconnect();
const observer = new MutationObserver(handleChangeGEMA);
observer.observe(container.querySelector("ers-werksuche-ergebnis-tabelle tbody.mdc-data-table__content"), {
childList: true,
})
return
}
}
}

const observer = new MutationObserver(handleChangeGEMA);
observer.observe(document.querySelector('div.body'), {
const observer = new MutationObserver(initGEMA);
observer.observe(document.querySelector('app-root'), {
childList: true,
subtree: true,
});

injectButtons(); // initial loading might remember the last search
}


const repertoireToHandler = {
'iswcnet.cisac.org': handleISWCNet,
'online.gema.de': handleGEMA,
'portal.gema.de': handleGEMA,
};

if (document.location.hostname === 'musicbrainz.org' || document.location.hostname.endsWith('.musicbrainz.org')) {
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