@code3 said in Help Developing in Web Panels:

What event to listen for to know when the web panel is opened?

This fires on panel opening but not closing:

window.addEventListener('resize', () => { console.log("Panel opened..."); });

As long as you don't need to worry about detecting closing as well, then that should work.

There is also this to check out:
https://developer.mozilla.org/en-US/docs/Web/API/Resize_Observer_API

As soon as they stop having web panels wasting resources in the background, this will be useful. Thanks for sharing

WhatsApp YouTube Music Twitter

Thank you for your request. As this post has had less than 5 votes over 4 years it will now be archived.

Thank you for your request. As this post has had less than 5 votes over 4 years it will now be archived.

@mib2berlin I think that's a different thing, though I can't be sure... that's Keep syncing/reloading your notes, and is, as far as I know, not dependent on Vivaldi. At least I think so 😛

Here's an example:

BW panel when writing this post:
09dd4121-8d8b-4b16-83cc-fb0f962fb8ef-image.png

If I switch tabs, close and reopen the panel, the BW panel still shows me the same outputs as for the Vivaldi Forums site:
2f7917b6-d49b-4121-9c28-e5ed1d17c564-image.png

I expected to see this, with my google accounts there:
3c301975-97b5-4775-bece-2fe73836b4ee-image.png

The Back/Forward, Refresh and Home Button Box is not skinned anymore with the newest Vivaldi Version.

OK fixed it myself. Here the new addstyle Codeblock:

addStyle([ '#panels .webpanel-stack .webpanel .webpanel-header { background-color: var(--colorBgWebpanel); color: var(--colorFgWebpanel); fill: var(--colorFgWebpanel); }', '#panels .button-toolbar { background-image: none; background-color: var(--colorBgWebpanel); color: var(--colorFgWebpanel); fill: var(--colorFgWebpanel); }', ].join('')) })();

This is an older issue and should be fixed now. If anyone still sees it, please file a new report.

Thank you for your request. As this post has had less than 5 votes over 4 years it will now be archived.

Thank you for your request. As this post has had less than 5 votes over 4 years it will now be archived.

Hi,
This would help in the meantime.

alt text

I think improvements have been made in more recent versions. Does it work now? If not, are there any specific sites on which it is broken?

Ha ha, carrying your excellent instructions one tiny step further makes me a champion! I'm glad it worked.