iqdb Ctrl + V

在 iqdb 中使用 Ctrl + V 上传图片
Version vom 14.06.2021. Aktuellste Version
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// ==UserScript==
// @name            iqdb Ctrl + V
// @name:en         iqdb Ctrl + V
// @namespace       http://tampermonkey.net/
// @version         0.1.2
// @description     在 iqdb 中使用 Ctrl + V 上传图片
// @description:en  Upload image to iqdb by Ctrl + V
// @author          apkipa
// @match           https://www.iqdb.org
// @grant           none
// ==/UserScript==

(function() {
    'use strict';

    function extractImageFilesFromClipboard(event) {
        var clipboardData = event.clipboardData || window.clipboardData;
        var files = clipboardData.files;
        var a = new DataTransfer();

        for (var i = 0; i < files.length; i++) {
            if (files[i].type.indexOf("image") !== -1) {
                a.items.add(files[i]);
            }
        }

        if (a.files.length < 1) {
            return null;
        }

        return a.files;
    }

    function createFilelistFromSingleFile(file) {
        var a = new DataTransfer();
        a.items.add(file);
        return a.files;
    }

    function handlePaste(e) {
        var clipboardData, pastedData;

        var files = extractImageFilesFromClipboard(e);

        if (files !== null) {
            e.stopPropagation();
            e.preventDefault();

            var fileInput = document.getElementById("file");
            var formUpload = document.querySelectorAll("input[type=submit]")[0];

            /* ? Not working here
            fileInput.addEventListener("change", () => {
                formUpload.form.submit();
            });
            */

            fileInput.files = createFilelistFromSingleFile(files[0]);

            // Automatically submit the pasted image
            // (If this is not desired behavior, comment the next line)
            formUpload.form.submit();
        }
        else {
            console.log("Not an image, paste event propagated");
        }
    }

    window.addEventListener('paste', handlePaste);
})();