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Drag-Drop Image Uploader

Enables image uploading by simply dragging and dropping images onto a fixed div in the bottom right corner of the page. Easily upload and use images on any website with this convenient script.

当前为 2023-05-21 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name         Drag-Drop Image Uploader
  3. // @namespace           http://tampermonkey.net/
  4. // @version      0.1.1
  5. // @description  Enables image uploading by simply dragging and dropping images onto a fixed div in the bottom right corner of the page. Easily upload and use images on any website with this convenient script.
  6. // @match        https://*/*
  7. // @grant        none
  8. // @license             MIT License
  9. // @author              CY Fung
  10. // @run-at       document-start
  11. // ==/UserScript==
  12.  
  13. (function () {
  14.     'use strict';
  15.  
  16.     if (location.hostname === 'lihkg.com') {
  17.  
  18.         if(location.pathname!=='/robots.txt')return;
  19.  
  20.         function T(e) {
  21.             return new Promise(function (resolve, reject) {
  22.                 window.history.replaceState(null, '', 'https://lihkg.com');
  23.                 var xhr = new XMLHttpRequest();
  24.                 var formData = new FormData();
  25.                 formData.append('image', e);
  26.                 xhr.open('POST', 'https://api.na.cx/upload');
  27.  
  28.                 // Set the Referer header to an empty string
  29.                 xhr.onreadystatechange = function () {
  30.                     if (xhr.readyState === 4) {
  31.                         if (xhr.status === 200) {
  32.                             var response = JSON.parse(xhr.responseText);
  33.                             var status = response.status;
  34.                             var url = response.url;
  35.                             var error = response.error;
  36.  
  37.                             if (status === 200) {
  38.                                 resolve(url);
  39.                             } else {
  40.                                 reject(new Error(error));
  41.                             }
  42.                         } else {
  43.                             reject(new Error('Status is not 200'));
  44.                         }
  45.                     }
  46.                 };
  47.  
  48.                 xhr.send(formData);
  49.             });
  50.         }
  51.  
  52.  
  53.         let iframe = document;
  54.  
  55.         // Function to handle the dragenter event
  56.         function handleDragEnter(e) {
  57.             top.postMessage('top-dragenter', '*');
  58.             // Add a class to visually indicate the drag over the iframe
  59.             //iframe.classList.add("drag-over");
  60.         }
  61.  
  62.         // Function to handle the dragover event
  63.         function handleDragOver(e) {
  64.             // top.postMessage('top-dragover','*');
  65.             e.preventDefault();
  66.             e.dataTransfer.dropEffect = 'copy';
  67.         }
  68.  
  69.         // Function to handle the dragleave event
  70.         function handleDragLeave(e) {
  71.             top.postMessage('top-dragleave', '*');
  72.             // Remove the class when the drag leaves the iframe
  73.             //iframe.classList.remove("drag-over");
  74.         }
  75.  
  76.         async function goUpload(e) {
  77.  
  78.             var files = e.dataTransfer.files;
  79.             let images = [...files].filter(file => file.type == "image/png" || file.type == "image/jpg" || file.type == "image/jpeg" || file.type == "image/gif")
  80.             console.log(images);
  81.  
  82.             for (const image of images) {
  83.                 await T(image)
  84.                     .then(function (url) {
  85.                         // focusElement.focus();
  86.                         // document.execCommand("insertText", false, url)
  87.                         top.postMessage({ p: 'finish-upload', url: url }, '*')
  88.                         console.log('Uploaded image URL:', url);
  89.                     })
  90.                     .catch(function (error) {
  91.                         console.error('Upload failed:', error);
  92.                     });
  93.             }
  94.  
  95.         }
  96.  
  97.         // Function to handle the drop event
  98.         function handleDrop(e) {
  99.             e.preventDefault();
  100.             top.postMessage('top-drop', '*');
  101.  
  102.             // Remove the class when the drop occurs
  103.             //iframe.classList.remove("drag-over");
  104.  
  105.             // Access the dropped files or data
  106.  
  107.             goUpload(e);
  108.  
  109.             // Process the dropped files or data as needed
  110.             // ...
  111.         }
  112.         // Add event listeners for drag and drop events
  113.         iframe.addEventListener("dragenter", handleDragEnter, false);
  114.         iframe.addEventListener("dragover", handleDragOver, false);
  115.         iframe.addEventListener("dragleave", handleDragLeave, false);
  116.         iframe.addEventListener("drop", handleDrop, false);
  117.  
  118.  
  119.         top.postMessage('top-uploader-ready', '*');
  120.  
  121.  
  122.     } else {
  123.  
  124.         function onReady() {
  125.  
  126.             // Create the fixed div element
  127.             var fixedDiv = document.createElement('div');
  128.             fixedDiv.style.position = 'fixed';
  129.             fixedDiv.style.zIndex = '8888';
  130.             fixedDiv.style.bottom = '10px';
  131.             fixedDiv.style.right = '10px';
  132.             fixedDiv.style.width = '200px';
  133.             fixedDiv.style.height = '200px';
  134.             fixedDiv.style.backgroundColor = 'rgba(0, 0, 0, 0.5)';
  135.             fixedDiv.style.border = '2px solid white';
  136.             fixedDiv.style.borderRadius = '5px';
  137.             fixedDiv.style.padding = '0px';
  138.             fixedDiv.style.color = 'white';
  139.             fixedDiv.style.fontSize = '14px';
  140.             fixedDiv.style.textAlign = 'center';
  141.             //    fixedDiv.style.cursor = 'move';
  142.             // fixedDiv.draggable = true;
  143.             fixedDiv.style.opacity = '0'; // Set initial opacity to 0 (hidden)
  144.             fixedDiv.style.display = 'none';
  145.             fixedDiv.id = 'maksdmksrnvj';
  146.             fixedDiv.style.background = 'url(https://static.thenounproject.com/png/3905046-200.png)';
  147.             fixedDiv.style.backgroundPosition = 'center';
  148.             fixedDiv.style.backgroundSize = 'cover';
  149.             fixedDiv.style.backgroundRepeat = 'no-repeat';
  150.  
  151.             fixedDiv.style.pointerEvents = 'none';
  152.  
  153.             let focusElement = null;
  154.  
  155.             let moused = false;
  156.  
  157.             let lastDragIn = 0;
  158.             let cid = 0;
  159.             function setupIframe(iframe) {
  160.  
  161.                 iframe.style.position = 'relative';
  162.                 iframe.style.width = '100%';
  163.                 iframe.style.height = '100%';
  164.                 iframe.style.opacity = '0';
  165.                 iframe.style.pointerEvents = 'all';
  166.                 iframe.style.transform = 'translateY(-300vh)';
  167.                 fixedDiv.style.transform = 'translateY(-300vh)';
  168.  
  169.             }
  170.  
  171.             // Create the Intersection Observer
  172.             var observer = new IntersectionObserver(function (entries) {
  173.                 entries.forEach(function (entry) {
  174.                     if (entry.isIntersecting) {
  175.                         // When fixedDiv appears, check if it has an iframe inside
  176.                         var iframe = fixedDiv.querySelector('iframe');
  177.                         if (!iframe) {
  178.                             // If no iframe inside, create and append one
  179.                             iframe = document.createElement('iframe');
  180.                             setupIframe(iframe);
  181.                             iframe.src = 'https://lihkg.com/robots.txt';
  182.                             fixedDiv.appendChild(iframe);
  183.                         }
  184.                     }
  185.                 });
  186.             });
  187.  
  188.             // Observe the fixedDiv element
  189.             observer.observe(fixedDiv);
  190.  
  191.  
  192.  
  193.             document.addEventListener('dragleave', function (event) {
  194.                 if (moused) return;
  195.  
  196.                 if (cid > 0) cid = clearTimeout(cid);
  197.                 if (event.relatedTarget) return;
  198.                 console.log(221);
  199.  
  200.                 let endTime = Date.now();
  201.                 cid = setTimeout(() => {
  202.                     cid = 0;
  203.                     requestAnimationFrame(() => {
  204.                         if (lastDragIn > endTime) return;
  205.  
  206.                         if (fixedDiv.style.display !== 'none' && !moused) {
  207.  
  208.                             // focusElement = null;
  209.                             fixedDiv.style.display = 'none';
  210.                             fixedDiv.style.opacity = '0';
  211.                         }
  212.                     });
  213.                 }, 80)
  214.  
  215.                 event.preventDefault();
  216.  
  217.             });
  218.  
  219.             document.addEventListener('dragenter', function (event) {
  220.                 if (moused) return;
  221.                 if (cid > 0) cid = clearTimeout(cid);
  222.                 if (event.relatedTarget) return;
  223.                 console.log(222);
  224.  
  225.  
  226.                 lastDragIn = Date.now();
  227.  
  228.                 let activeNode = document.activeElement || 0;
  229.                 let activeNodeName = activeNode.nodeName;
  230.                 if (activeNodeName === 'TEXTAREA' || (activeNodeName === 'INPUT' && (!activeNode.type || activeNode.type == 'text'))) {
  231.                     if (fixedDiv.style.display === 'none') {
  232.                         fixedDiv.style.display = 'block';
  233.                         fixedDiv.style.opacity = '0.4';
  234.                         focusElement = activeNode;
  235.                         console.log(focusElement)
  236.                     }
  237.                 }
  238.  
  239.                 requestAnimationFrame(() => {
  240.  
  241.                     lastDragIn = Date.now();
  242.                 });
  243.             }, true);
  244.  
  245.             document.addEventListener('drop', function (event) {
  246.                 moused = false;
  247.                 if (moused) return;
  248.                 if (cid > 0) cid = clearTimeout(cid);
  249.                 console.log(223);
  250.  
  251.                 let endTime = Date.now();
  252.                 cid = setTimeout(() => {
  253.                     cid = 0;
  254.                     if (lastDragIn > endTime) return;
  255.                     if (fixedDiv.style.display !== 'none' && !moused) {
  256.                         // focusElement = null;
  257.  
  258.                         fixedDiv.style.display = 'none';
  259.                         fixedDiv.style.opacity = '0';
  260.                     }
  261.                 }, 80)
  262.  
  263.  
  264.             }, true);
  265.  
  266.             // Append the div to the document body
  267.             document.body.appendChild(fixedDiv);
  268.  
  269.  
  270.             window.addEventListener('message', event => {
  271.  
  272.                 let data = (((event || 0).data || 0));
  273.  
  274.  
  275.                 if (data === 'top-uploader-ready') {
  276.  
  277.                     let fixedDiv = document.querySelector('#maksdmksrnvj');
  278.                     let iframe = fixedDiv.querySelector('iframe');
  279.  
  280.                     iframe.style.transform = '';
  281.                     fixedDiv.style.transform = '';
  282.  
  283.                 }
  284.  
  285.                 if (data === 'top-dragenter') {
  286.                     moused = true;
  287.                     fixedDiv.style.opacity = '1';
  288.                 }
  289.                 if (data === 'top-dragleave') {
  290.                     moused = false;
  291.                     fixedDiv.style.opacity = '0.4';
  292.                 }
  293.  
  294.                 if (data === 'top-dragenter') {
  295.  
  296.                     if (cid > 0) cid = clearTimeout(cid);
  297.                 }
  298.  
  299.                 if (data === 'top-dragleave') {
  300.  
  301.                     let endTime = Date.now();
  302.                     if (cid > 0) cid = clearTimeout(cid);
  303.                     cid = setTimeout(() => {
  304.                         cid = 0;
  305.                         requestAnimationFrame(() => {
  306.                             if (lastDragIn > endTime) return;
  307.  
  308.                             if (fixedDiv.style.display !== 'none' && !moused) {
  309.  
  310.                                 // focusElement = null;
  311.                                 fixedDiv.style.display = 'none';
  312.                                 fixedDiv.style.opacity = '0';
  313.                             }
  314.                         });
  315.                     }, 80)
  316.  
  317.                 }
  318.  
  319.                 if (data.p === 'finish-upload') {
  320.                     let url = event.data.url;
  321.                     focusElement.focus();
  322.                     document.execCommand("insertText", false, url)
  323.                 }
  324.  
  325.                 if (data === 'top-drop') {
  326.                     moused = false;
  327.  
  328.                     let endTime = Date.now();
  329.                     cid = setTimeout(() => {
  330.                         cid = 0;
  331.                         if (lastDragIn > endTime) return;
  332.                         if (fixedDiv.style.display !== 'none' && !moused) {
  333.                             // focusElement = null;
  334.  
  335.                             fixedDiv.style.display = 'none';
  336.                             fixedDiv.style.opacity = '0';
  337.                         }
  338.                     }, 80)
  339.                 }
  340.  
  341.             })
  342.  
  343.         }
  344.         if (document.readyState !== 'loading') {
  345.             onReady();
  346.         } else {
  347.             document.addEventListener('DOMContentLoaded', onReady, false);
  348.         }
  349.  
  350.  
  351.  
  352.     }
  353. })();