Universal Image Paste to Upload

Paste an image from your clipboard directly into the first available file upload input on the page.
Spýtať sa otázku, uverejniť recenziu, alebo nahlásiť skript.
Zalomiť riadky
// ==UserScript==
// @name         Universal Image Paste to Upload
// @namespace    github.com/AnnaRoblox
// @version      1.0
// @description  Paste an image from your clipboard directly into the first available file upload input on the page.
// @author       AnnaRoblox
// @match        *://*/*
// @grant        none
// @license MIT
// ==/UserScript==

(function() {
    'use strict';

    // Personal Opinion: This should be a built-in browser feature by now!
    // It saves so much disk clutter.

    window.addEventListener('paste', function(event) {
        // Get items from clipboard
        const items = (event.clipboardData || event.originalEvent.clipboardData).items;
        let imageBlob = null;

        // Look for an image in the pasted data
        for (let i = 0; i < items.length; i++) {
            if (items[i].type.indexOf('image') !== -1) {
                imageBlob = items[i].getAsFile();
                break;
            }
        }

        // If no image was found, we don't need to do anything
        if (!imageBlob) return;

        // Find a file input.
        // We prioritize visible inputs, as some sites have hidden ones for tracking or legacy reasons.
        const fileInputs = Array.from(document.querySelectorAll('input[type="file"]'));
        const targetInput = fileInputs.find(input => {
            // Check if the input is actually visible to the user
            const rect = input.getBoundingClientRect();
            return rect.width > 0 && rect.height > 0;
        }) || fileInputs[0]; // Fallback to the first one found if none are "visible"

        if (targetInput) {
            // To programmatically set a file input's value, we must use DataTransfer
            const dataTransfer = new DataTransfer();

            // Create a file object from the blob so it has a name (some sites require a filename)
            const file = new File([imageBlob], "pasted_image.png", { type: imageBlob.type });
            dataTransfer.items.add(file);

            // Assign the files to the input
            targetInput.files = dataTransfer.files;

            // Most websites listen for a 'change' event to trigger their upload logic
            const changeEvent = new Event('change', { bubbles: true });
            targetInput.dispatchEvent(changeEvent);

            // Provide a little feedback in the console
            console.log('Successfully pasted image into:', targetInput);
        } else {
            console.warn('Pasted an image, but no file upload input was found on this page.');
        }
    });
})();