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iqdb Ctrl + V

在 iqdb 中使用 Ctrl + V 上传图片

  1. // ==UserScript==
  2. // @name            iqdb Ctrl + V
  3. // @name:en         iqdb Ctrl + V
  4. // @namespace       http://tampermonkey.net/
  5. // @version         0.1.4
  6. // @description     在 iqdb 中使用 Ctrl + V 上传图片
  7. // @description:en  Upload image to iqdb by Ctrl + V
  8. // @author          apkipa
  9. // @match           https://*.iqdb.org/*
  10. // @grant           none
  11. // ==/UserScript==
  12.  
  13. (function() {
  14.     'use strict';
  15.  
  16.     function extractImageFilesFromClipboard(event) {
  17.         var clipboardData = event.clipboardData || window.clipboardData;
  18.         var files = clipboardData.files;
  19.         var a = new DataTransfer();
  20.  
  21.         for (var i = 0; i < files.length; i++) {
  22.             if (files[i].type.indexOf("image") !== -1) {
  23.                 a.items.add(files[i]);
  24.             }
  25.         }
  26.  
  27.         if (a.files.length < 1) {
  28.             return null;
  29.         }
  30.  
  31.         return a.files;
  32.     }
  33.  
  34.     function extractTextFromClipboard(event) {
  35.         var clipboardData = event.clipboardData || window.clipboardData;
  36.         return clipboardData.getData('Text');
  37.     }
  38.  
  39.     function createFilelistFromSingleFile(file) {
  40.         var a = new DataTransfer();
  41.         a.items.add(file);
  42.         return a.files;
  43.     }
  44.  
  45.     function isHttpURL(text) {
  46.         var url;
  47.         try {
  48.             url = new URL(text);
  49.         } catch(_) {
  50.             return false;
  51.         }
  52.         return url.protocol === "http:" || url.protocol === "https:";
  53.     }
  54.  
  55.     function handlePaste(e) {
  56.         var files = extractImageFilesFromClipboard(e);
  57.  
  58.         if (files !== null) {
  59.             e.stopPropagation();
  60.             e.preventDefault();
  61.  
  62.             var fileInput = document.getElementById("file");
  63.  
  64.             /* ? Not working here
  65.             fileInput.addEventListener("change", () => {
  66.                 formUpload.form.submit();
  67.             });
  68.             */
  69.  
  70.             fileInput.files = createFilelistFromSingleFile(files[0]);
  71.         }
  72.         else {
  73.             console.log("Paste event does not contain images. Assuming text is pasted.");
  74.             var text = extractTextFromClipboard(e);
  75.             if (text == "") {
  76.                 console.log("No text in paste event, event is propagated.");
  77.                 return;
  78.             }
  79.  
  80.             if (!isHttpURL(text)) {
  81.                 console.log("Pasted text is not a URL, event is propagated.");
  82.                 return;
  83.             }
  84.  
  85.             var urlInput = document.getElementById("url");
  86.  
  87.             e.stopPropagation();
  88.             e.preventDefault();
  89.  
  90.             urlInput.value = text;
  91.         }
  92.  
  93.         // Automatically submit the pasted data
  94.         // (If this is not desired behavior, comment the line containing submit())
  95.         var formUpload = document.querySelectorAll("input[type=submit]")[0];
  96.         formUpload.form.submit();
  97.     }
  98.  
  99.     window.addEventListener('paste', handlePaste);
  100. })();