Insert Predefined Text

Inserts predefined text into a text box when the user presses enter or clicks okay

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!)

```javascript
// ==UserScript==
// @name         Insert Predefined Text
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  Inserts predefined text into a text box when the user presses enter or clicks okay
// @match        *://*/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    // Set the predefined text here
    var predefinedText = "This is the predefined text.";

    // Add an event listener for keydown events
    document.addEventListener('keydown', function(event) {
        // Check if the key pressed was enter
        if (event.key === 'Enter') {
            // Get the active element (the one currently selected by the cursor)
            var activeElement = document.activeElement;

            // Check if the active element is a text box
            if (activeElement.tagName === 'TEXTAREA' || (activeElement.tagName === 'INPUT' && activeElement.type === 'text')) {
                // Insert the predefined text into the text box with a space before it
                activeElement.value += ' ' + predefinedText;
            }
        }
    });
})();
```