Could we support the OpenHarmony OS ?

[1991wangyufei]

Description

HarmonyOS, the Greatest self-innovated OS in China, will soon be popular around the world. HarmonyOS has an absolutely leading user base in China and a very broad development prospect, demonstrating exceptional capabilities. So, I sincerely hope winit can support it, Thanks.

Relevant platforms

No response

[notgull]

We already support OpenHarmony in raw-window-handle, is HarmonyOS's windowing system any different?

[1991wangyufei]

We already support OpenHarmony in raw-window-handle, is HarmonyOS's windowing system any different?

oh, that's great, I was using the old ver. of winit.. I will upgrade and have a try, Thx ! ^ _ ^

[notgull]

oh, that's great, I was using the old ver. of winit.. I will upgrade and have a try, Thx ! ^ _ ^

To clarify, we do not support OpenHarmony or HarmonyOS in winit. So far it is only implemented as an option in the raw-window-handle interopability layer. I was asking if there is a meaningful difference between HarmonyOS and OpenHarmony.

[1991wangyufei]

oh, that's great, I was using the old ver. of winit.. I will upgrade and have a try, Thx ! ^ _ ^

To clarify, we do not support OpenHarmony or HarmonyOS in winit. So far it is only implemented as an option in the raw-window-handle interopability layer. I was asking if there is a meaningful difference between HarmonyOS and OpenHarmony.

I got it, there is no meaningful difference between HarmonyOS and OpenHarmony. By the way, one more question is that, as we
known, winit is using android-activity as the upper layer to interact with the raw-window-handle on Android, is there any upper layer similar to android-activity, to interact with raw-window-handle on OpenHarmony using by winit ? Thx.

[notgull]

I am not aware of such a layer if it exists.

[madsmtm]

A quick search reveals at least two GitHub orgs, with a bunch of crates related to this stuff:

• https://github.com/openharmony-rs
• https://github.com/ohos-rs

[1991wangyufei]

A quick search reveals at least two GitHub orgs, with a bunch of crates related to this stuff:

• https://github.com/openharmony-rs
• https://github.com/ohos-rs

Yes, I have noticed this too. Maybe we can create a new glue layer in winit, for OpenHarmony platform, to connect to the upper app layer, just like android-activity or game-activity crate used by winit for Android platform.

[nicoburns]

CC: @jschwe who has been implementing OpenHarmony support in Servo. How is Servo doing windowing on OH?

[jschwe]

I was asking if there is a meaningful difference between HarmonyOS and OpenHarmony.

It's basically the same as Android vs AOSP. Supporting OpenHarmony means HarmonyOS is also supported, since any OpenHarmony based OS must be a superset

How is Servo doing windowing on OH?

Servo is not using winit on OH or android right now, but just doing a custom embedder.

I know that @richerfu (Maintainer of ohos-rs) has been working on adding OpenHarmony support to winit though. I'm not sure what the current progress is and if it is far enough along to open a pull request, but perhaps he can comment here what his plan is.

[richerfu]

Yes, I'm working on adding OpenHarmony support to winit. At present, we can successfully run winit and glutin-winit(0.30.x). However, there's still work to be done.

1. Some APIs need to be supported, and we need more examples to test these APIs.
2. Code cleanup is necessary, as our current code relies on Mutex to handle event callbacks, which impacts performance.

I'll try to mark repo as public and submit a draft PR for winit and glutin-winit as soon as possible. Then all of us can help it be better.
That's all, thanks :)

Here is an example pic for it.

[richerfu]

A quick search reveals at least two GitHub orgs, with a bunch of crates related to this stuff:

• https://github.com/openharmony-rs
• https://github.com/ohos-rs

Yes, I have noticed this too. Maybe we can create a new glue layer in winit, for OpenHarmony platform, to connect to the upper app layer, just like android-activity or game-activity crate used by winit for Android platform.

Yep i create a repo named openharmony-ability for it.