How do Chrome extensions like WebPaint work? - google-chrome-extension

Reference: https://chrome.google.com/webstore/detail/web-paint/emeokgokialpjadjaoeiplmnkjoaegng?hl=en
I was looking for chrome extension APIs that I could use to draw "anywhere" on browser. Can anyone shed light on the API or resources to look for?
thanks

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Is is possible to bring to front webkit browser with Playwright?

I am currently developing an automation app, I started using Playwright as I honestly think that this library is awesome ! However I was wondering, is it possible to bring to front a browser through code when needed ?
Thank you in advance,
Volck

Integration : Chrome web store and slack

I was searching for a way to get some information from chrome webstore (I have couple of extensions there) specifically feedbacks from users and user count. And I would like to do something with that data.
I searched about chrome web store API
but couldn't find anything.
found launchkit which does same thing, but for appStore
I am thinking there is no straight way to do it, but if anyone has done it or got some idea about it please share it along,
Thanks in advance
A simple google tells me there are already some possible helpful answers:
Get user feedbacks
How to get user feedback/bug reports on a Chrome Extension through itself?
Get user count
API call for user count in Chrome Web Store?
The closest I can find out is chromebeat and my extensions I would have to figure out how this works without an existing API and write my own after that I guess.

Xamarin.IOS -> How to interact with sharing to Facebook, Whatsup, etc

I have an app where I wanna share some content to facebook, whatsup, mail and message. How do I interact with the native apps installed on the users phone. It would be something like the Implicit Intent for Xamarin.Android.
I'm using MVVM Cross.
Any help to guide me to the right direction is appreciated.
Thank you,
You need to use Intents in Android and URL Schemes in iOS to accomplish this. You can find the information you need on the developer portals:
Android
https://developers.facebook.com/docs/sharing/android
http://developer.android.com/training/sharing/send.html
iOS
What are all the custom URL schemes supported by the Facebook iPhone app?
https://developer.apple.com/library/ios/documentation/iPhone/Conceptual/iPhoneOSProgrammingGuide/Inter-AppCommunication/Inter-AppCommunication.html#//apple_ref/doc/uid/TP40007072-CH6-SW1

Animation in Youtube Application for Android Tablets

Here is the screen shot of Youtube Application that we see in tablets.
I like this animation very much and want to try it in my application. So, I want to know about it. Can anyone tell me about it. What this animation is called and where I can find some knowledge and guide/tutorial for this?
Secondly what control is used in here? I have few things in my mind e.g. Gallery, GridView etc. Kindly share your knowledge.
Any help is much appreciated.
YouTube uses a custom component we call the "carousel," written in Renderscript.

Google Chrome extensions

Is there way to run native C/C++/Obj-C within a google chrome extension, The official page says extension are like other web pages, as i see it there is no way except Native Client(NaCl). Is this technically possible.
I believe that you are looking for NPAPI plugins. Do not take lightly the warning, however:
NPAPI is a really big hammer that should only be used when no other approach will work.
Why does your extension need C/C++/Objective-C, exactly?
Re: OP comment
Check out this question!

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