add_to_album_filter.user.js

// ==UserScript==
// @name         Google photos add to album filter
// @icon         https://ssl.gstatic.com/images/branding/product/1x/photos_64dp.png
// @version      0.5
// @description  Filter through list of albums when adding to album action
// @author       nataliastanko
// @namespace    https://github.com/nataliastanko/
// @contactURL   https://nataliastanko.com
// @copyright    2019, 2020, nataliastanko (https://github.com/nataliastanko/)
// @match        https://photos.google.com
// @include      https://photos.google.com/*
// @updateURL    https://raw.githubusercontent.com/nataliastanko/GooglePhotosTools/master/add_to_album_filter.user.js
// @downloadURL  https://raw.githubusercontent.com/nataliastanko/GooglePhotosTools/master/add_to_album_filter.user.js
// @homepage     https://github.com/nataliastanko/GooglePhotosTools/
// @supportURL   https://github.com/nataliastanko/GooglePhotosTools/issues
// @grant        none
// @license      MIT

// ==/UserScript==

/* jshint esversion: 6 */

(function() {
  'use strict';

  function getAlbumsModal() {
    const headings = document.querySelectorAll('[role="heading"]');
    const match = Array.prototype.find.call(headings, function(node) {
      return node.textContent === 'Add to';
    });

    return match;
  }

  function initObserver() {
    var targetNode = document.querySelector('body');
    // Options for the observer (which mutations to observe)

    // Callback function to execute when mutations are observed
    var callback = function(mutationsList, observer) {
      for(var mutation of mutationsList) {
        if (mutation.type == 'childList') {
          const modalHeading = getAlbumsModal();
          if (modalHeading) {
            insertSearchForm(modalHeading);
            return;
          }
        }
      }
    };

    // Create an observer instance linked to the callback function
    var observer = new MutationObserver(callback);
    var config = { attributes: false, childList: true, subtree: false };

    // Start observing the target node for configured mutations
    observer.observe(targetNode, config);
  }

  function search(input) {
    // add event
    var albumPhrase = input.value;
    var albumList = document.querySelectorAll('[aria-label="Album list"] li');
    for (var album of albumList) {
      var albumName = album.children[1].children[0].innerHTML;

      var reg = new RegExp(albumPhrase,'i');
      var found = albumName.match(reg);

      if (found) {
          // jump to first
          album.scrollIntoView();
          return;
      }
    }
  }

  function insertSearchForm (el) {

    var input = document.createElement('input');
    input.setAttribute('type', 'text');
    input.setAttribute('value', '');
    input.setAttribute('placeholder', 'album name');
    input.setAttribute('style', 'margin: 0 5px; padding: 5px;');

    input.onkeypress = function(event) {
      if (event.key == "Enter") {
        search(input);
      }
    }

    var button = document.createElement('button');
    button.setAttribute('type', 'button');
    button.setAttribute('content', '');
    button.innerHTML = 'Search';
    button.setAttribute('style', 'padding: 5px;');

    // call search on click
    button.onclick = function() {
        search(input);
    }

    el.appendChild(input);
    el.appendChild(button);
  }

  initObserver();

})();