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Autosave form Inputs and Display 15-Item History

Autosaves and displays the last 15 entries of a single input field. Entries are saved on Enter or button click, and can be recovered or deleted.

目前为 2024-08-10 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name         Autosave form Inputs and Display 15-Item History
  3. // @namespace    http://tampermonkey.net/
  4. // @version      2024-08-08
  5. // @description  Autosaves and displays the last 15 entries of a single input field. Entries are saved on Enter or button click, and can be recovered or deleted.
  6. // @author       Lawrence d'Aniello
  7. // @match        https://example.com/* // Customize to match your target website
  8. // @license      MIT
  9. // @grant        none
  10. // ==/UserScript==
  11.  
  12. (function() {
  13.     'use strict';
  14.  
  15.     // Example selectors - change these to match the specific site
  16.     const inputField = document.querySelector('input[type="text"]'); // Change CSS selector to match your input field
  17.     const searchButton = document.querySelector('button'); // Change CSS selector to match your search button
  18.  
  19.     inputField.setAttribute('autocomplete', 'off');
  20.  
  21.     let savedInputEntries = JSON.parse(localStorage.getItem('savedInputEntries')) || [];
  22.  
  23.     function updateSavedInputEntries(newEntry) {
  24.         if (newEntry.trim() !== "" && !savedInputEntries.includes(newEntry)) {
  25.             savedInputEntries.push(newEntry);
  26.             if (savedInputEntries.length > 15) {
  27.                 savedInputEntries.shift();
  28.             }
  29.             localStorage.setItem('savedInputEntries', JSON.stringify(savedInputEntries));
  30.             displaySavedInputEntries();
  31.         }
  32.     }
  33.  
  34.     function deleteEntry(entryToDelete) {
  35.         savedInputEntries = savedInputEntries.filter(entry => entry !== entryToDelete);
  36.         localStorage.setItem('savedInputEntries', JSON.stringify(savedInputEntries));
  37.         displaySavedInputEntries();
  38.     }
  39.  
  40.     function displaySavedInputEntries() {
  41.         let existingDropdown = document.getElementById('savedInputEntriesDropdown');
  42.         if (existingDropdown) {
  43.             existingDropdown.remove();
  44.         }
  45.  
  46.         const dropdown = document.createElement('ul');
  47.         dropdown.id = 'savedInputEntriesDropdown';
  48.         dropdown.style.listStyleType = 'none';
  49.         dropdown.style.padding = '5px';
  50.         dropdown.style.border = '1px solid #ccc';
  51.         dropdown.style.position = 'absolute';
  52.         dropdown.style.backgroundColor = '#fff';
  53.         dropdown.style.zIndex = '1000';
  54.         dropdown.style.maxHeight = '150px';
  55.         dropdown.style.overflowY = 'auto';
  56.  
  57.         const inputRect = inputField.getBoundingClientRect();
  58.         dropdown.style.left = `${inputRect.left}px`;
  59.         dropdown.style.top = `${inputRect.bottom + window.scrollY}px`;
  60.         dropdown.style.width = `${inputRect.width}px`;
  61.  
  62.         const uniqueEntries = new Set(savedInputEntries);
  63.  
  64.         Array.from(uniqueEntries).reverse().forEach(entry => {
  65.             const listItem = document.createElement('li');
  66.             listItem.style.display = 'flex';
  67.             listItem.style.justifyContent = 'space-between';
  68.             listItem.style.padding = '5px';
  69.             listItem.style.cursor = 'pointer';
  70.             listItem.style.position = 'relative';
  71.             listItem.style.transition = 'background-color 0.3s, color 0.3s';
  72.             listItem.textContent = entry;
  73.  
  74.             // Hover styles
  75.             listItem.addEventListener('mouseover', function() {
  76.                 listItem.style.backgroundColor = '#f0f0f0';
  77.                 listItem.style.color = '#333';
  78.                 deleteButton.style.display = 'inline';
  79.             });
  80.             listItem.addEventListener('mouseout', function() {
  81.                 listItem.style.backgroundColor = '#fff';
  82.                 listItem.style.color = '#000';
  83.                 deleteButton.style.display = 'none';
  84.             });
  85.  
  86.             const deleteButton = document.createElement('button');
  87.             deleteButton.textContent = '✖';
  88.             deleteButton.style.display = 'none';
  89.             deleteButton.style.background = 'none';
  90.             deleteButton.style.border = 'none';
  91.             deleteButton.style.color = 'red';
  92.             deleteButton.style.cursor = 'pointer';
  93.             deleteButton.style.position = 'absolute';
  94.             deleteButton.style.right = '10px';
  95.             deleteButton.style.top = '50%';
  96.             deleteButton.style.transform = 'translateY(-50%)';
  97.             deleteButton.addEventListener('click', function(event) {
  98.                 event.stopPropagation();
  99.                 deleteEntry(entry);
  100.             });
  101.  
  102.             listItem.appendChild(deleteButton);
  103.  
  104.             listItem.addEventListener('click', function() {
  105.                 inputField.value = entry;
  106.                 hideSavedInputEntries();
  107.                 inputField.focus();
  108.             });
  109.             dropdown.appendChild(listItem);
  110.         });
  111.  
  112.         document.body.appendChild(dropdown);
  113.     }
  114.  
  115.     function hideSavedInputEntries() {
  116.         let existingDropdown = document.getElementById('savedInputEntriesDropdown');
  117.         if (existingDropdown) {
  118.             existingDropdown.remove();
  119.         }
  120.     }
  121.  
  122.     function handleClick(event) {
  123.         if (event.target !== inputField && !inputField.contains(event.target)) {
  124.             hideSavedInputEntries();
  125.         } else if (event.target === inputField) {
  126.             displaySavedInputEntries();
  127.         }
  128.     }
  129.  
  130.     inputField.addEventListener('focus', function() {
  131.         // Debounce the display function to prevent flickering
  132.         setTimeout(displaySavedInputEntries, 100);
  133.     });
  134.  
  135.     document.addEventListener('click', handleClick);
  136.  
  137.     inputField.addEventListener('input', function() {
  138.         hideSavedInputEntries();
  139.     });
  140.  
  141.     inputField.addEventListener('keydown', function(event) {
  142.         if (event.key === 'Enter') {
  143.             updateSavedInputEntries(inputField.value);
  144.             hideSavedInputEntries();
  145.         }
  146.     });
  147.  
  148.     searchButton.addEventListener('click', function() {
  149.         updateSavedInputEntries(inputField.value);
  150.         hideSavedInputEntries();
  151.     });
  152.  
  153.     window.addEventListener('resize', function() {
  154.         let dropdown = document.getElementById('savedInputEntriesDropdown');
  155.         if (dropdown) {
  156.             const inputRect = inputField.getBoundingClientRect();
  157.             dropdown.style.left = `${inputRect.left}px`;
  158.             dropdown.style.top = `${inputRect.bottom + window.scrollY}px`;
  159.             dropdown.style.width = `${inputRect.width}px`;
  160.         }
  161.     });
  162. })();