KeyboardShortcuts | ⌨️ Add user-customizable global keyboard shortcuts | Frontend Framework library

When the user "presses two keys", it's impossible for both key presses to happen simultaneously, so one of the key presses will necessarily be detected before the other. Probably the best approach here is to ensure one of the keys (say B) doesn't have it's own functionality. That way the user will learn to always press B first, then A while B is held down (this is the way we type, using modifier keys such as SHIFT and CTRL).

If you really want both keys to have their own functionality, but different functionality when both are pressed "at the same time", then your only option is to implement a delay in handling the press of a single key, waiting to see if the other key is pressed before that delay expires. This, of course, comes at the expense of responsiveness.

Here's an implementation of that, using a short (25ms) PauseTransition for the delay. (I also changed to use an ObservableSet, which cleans up some of the logic.)

Looks like by default the Toolkit is using the Visual.Opacity for the Fade animation, and if you are setting the Opacity to 0 in your xaml code, it's not going to work as the Visual.Opacity is not in sync with UIElement.Opacity.

So you can either remove the Opacity="0" xaml code and then set the Opacity of your VolumeRing's Visual to 0 in your constructor, like this -

Pull out the value attribute, read using json, then you can get the value for the name key:

from bs4 import BeautifulSoup

Since you're applying the keydown event handler to the entire document, the best way to handle this is to diffuse the function based upon what element initiated the event. You can find this out by using event.target

Combining this with HTMLElement.prototype.matches can allow you to avoid elements that match a selector, for instance any input elements.

I have a hack that works around this, for now.

Add the following styles to the shadow root:

For your first question, assuming you don't want to specify the fields you want dynamically, you could make it look cleaner by doing:

Having a look at the DOM of your example I can see that duplicated items have css classes gmnoprint and gmnoscreen respectively. These class names suggest that one should be visible when you see map on the screen and another one when you print a map.

Digging into Google code in https://maps.googleapis.com/maps-api-v3/api/js/33/4/intl/en_gb/controls.js I figured out that Maps JavaScript API handles this situation using the following CSS styles

@media print { .gm-style .gmnoprint, .gmnoprint { display:none }}@media screen { .gm-style .gmnoscreen, .gmnoscreen { display:none }}

As you create a map in the shadow DOM tree, you can fix the issue adding these styles to your shadow root.

I modified your example and added styles to your shadow root. Have a look at the code snippet:

Just target the element then add a CSS background color (div > div > div > button). You can be more specific by using classes in css instead of the element. Here's what I did (check the CSS codes):

You could use the BindingOperations.SetBinding method to programmatically create a binding: