Monday, February 27, 2017

Sorting out Gjs with Typescript

I get why Gnome wants to use javascript. I love the language. The thing is, I don't love Gnome's implementation.

The syntax is getting out of date, and my experience with other engines doesn't translate well to the Gjs environment. Combine this with a lack of documentation. If Gnome wants to attract javascript developers, this isn't the way to do it. Its not too bad when you are coding a one page demo widget, but try coding an ambitious desktop application. Without relevant api information, I'm coding blindfolded.

One solution would be to use Typescript. All I need to do is translate the *.gir metadata to *.d.ts format, so I've created a tool

https://www.npmjs.com/package/gir2dts

All I have to do is install with npm, and reference the contained *.d.ts files.

There are a couple of samples in the example folder at https://github.com/darkoverlordofdata/gir2dts

This tool was designed to facillitate the development of another application, so it's a great example of a Gjs/Typescript application: https://github.com/darkoverlordofdata/bosco-player
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28 comments:

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  2. SamApril 20, 2017 at 1:26 PM

    Really good work. I agree wholeheartedly with your assertion that "If Gnome wants to attract javascript developers, this isn't the way to do it."

    And Typescript does look very appealing. Visual Studio Code, with your GTK typescript files, and therefore "intellisense" for the GTK libraries is really quite nice.

    One of the awkward things about GJS is how it handles modules. Have you looked into whether it is sane to try and support NodeJS (CommonJS I suppose) modules, and Typescript, with GJS?

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