#keypress

#Python – Context Meny and Key Press with #PySimpleGUI

Hi !

After my base sample code for a GUI app, now it’s time to add some interaction features:

Context Menu

Capture Key Press

In the following example, I’m adding a context menu with the following elements:

This can be done as part of the window definition, in example

right_click_menu = ['Unused', ['&FPS', '---', 'Menu A', 'Menu B', 'Menu C', ['Menu C1', 'Menu C2'], '---',…

Keypress – A robust Javascript library for capturing keyboard input

Keypress A robust Javascript library for capturing keyboard input

Keypress is an input capture library with some very special features, it is easy to pick up and use, has a reasonable footprint (~9kb), and has no dependencies.

Here’s some of what Keypress offers:

Fire on keyup and/or keydown

Any key can serve as a modifier

Special “counting” combos

Sequence combos

Keypress – A robust Javascript library for capturing keyboard input

Keypress A robust Javascript library for capturing keyboard input

Keypress is an input capture library with some very special features, it is easy to pick up and use, has a reasonable footprint (~9kb), and has no dependencies.

Here’s some of what Keypress offers:

Fire on keyup and/or keydown

Any key can serve as a modifier

Special “counting” combos

Sequence combos

I ran into a good reminder today. A feature I was working on has a search form, which should make an external ajax call when typed in or enter is hit. It looked something like this:

some_form.html

<form class="search-form">     <input type="text"data-action="performSearch" /> </form>

some_backbone.js

events: { 'keyup': 'performSearch' }, performSearch: function(e) { if (e.keyCode === 13) { e.preventDefault(); } ... }

The default behavior upon hitting enter within a form is usually to submit that form, hence we use javascript's event.preventDefault, which is pretty standard.

However, every time I was hitting ‘Enter’, the form would be submitted and the page would refresh. At the same time, I was still hitting the performSearch if clause, but only after the submit had already been triggered.