Scroll to empty text box

Press F2 to scroll to an empty text box and focus it

Verze ze dne 09. 08. 2019. Zobrazit nejnovější verzi.

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name         Scroll to empty text box
// @namespace    http://tampermonkey.net/
// @version      0.2.0
// @description  Press F2 to scroll to an empty text box and focus it
// @author       Valacar
// @match        *://*/*
// @grant        none
// ==/UserScript==

(function() {
  "use strict";

  // custom key. note: anything besides function keys may not work.
  // key code list: https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/code#Code_values
  const config = {
    key: "F2"
  };

  function findEmptyInput() {
    const inputs =
          document.querySelectorAll('textarea:not([readonly]),input[type="text"]:not([readonly])');
    for (let input of inputs) {
      if (input.value === "") {
        return input;
      }
    }
  }

  addEventListener("keydown", e => {
    if (e.defaultPrevented) {
      return;
    }
    if (e.code === config.key) {
      const emptyInput = findEmptyInput();
      if (emptyInput) {
        //console.debug(emptyInput);
        emptyInput.scrollIntoView({
          behavior: "smooth",
          block: "center",
          inline: "nearest"
        });
        emptyInput.focus();
      }
    }
  });

})();