dropInputFileName.uc.js

dropInputFileName.uc.js

// ==UserScript==
// @name           dropInputFileName.uc.js
// @description    
// @include        main
// @charset        utf-8
// @compatibility  Firefox 3.6+
// @namespace      http://twitter.com/xulapp
// @author         xulapp
// @license        MIT License
// @version        2011/02/12 23:00 +09:00
// ==/UserScript==


(function dropInputFileName() {
	const XHTML_NS = function() 'http://www.w3.org/1999/xhtml';

	document.addEventListener('drop', function DIFN_onDrop(event) {
		var {files} = event.dataTransfer;
		if (!files.length) return;

		var {target} = event;
		target = target.ownerDocument.evaluate('ancestor-or-self::html:input[@type="file"]', target, XHTML_NS, 9, null).singleNodeValue;
		if (!target) return;

		event.preventDefault();
		event.stopPropagation();

		var paths = Array.map(files, function(file) file.mozFullPath);
		var length = target.multiple ? paths.length : 1;
		target.mozSetFileNameArray(paths, length);
	}, true, false);
})();