denosaurs/pane

🖼️ A deno module providing bindings for cross-platform windowing

pane

---

⚠️ Work in progress. Expect breaking changes.

---

Pane provides bindings for rust crate winit in preparation for webgpu integration in deno. This module will provide a way of getting a raw_window_handle resource to provide to deno and interaction with the window. Pane no longer provides bindings to pixels as a way of drawing framebuffers onto the window, instead use WebGPU.

Example

Singe window

import { PaneEventLoop, PaneWindow } from "https://deno.land/x/pane/mod.ts";

const eventLoop = new PaneEventLoop();
const _pane = new PaneWindow(eventLoop);

setInterval(() => {
  for (const event of eventLoop.step()) {
    if (
      event.type === "windowEvent" &&
      event.value.event.type === "closeRequested"
    ) {
      Deno.exit();
    }
  }
}, 0);

Multiple windows

import { PaneEventLoop, PaneWindow } from "https://deno.land/x/pane/mod.ts";

const eventLoop = new PaneEventLoop();
const _pane1 = new PaneWindow(eventLoop);
const _pane2 = new PaneWindow(eventLoop);

setInterval(() => {
  for (const event of eventLoop.step()) {
    if (
      event.type === "windowEvent" &&
      event.value.event.type === "closeRequested"
    ) {
      Deno.exit();
    }
  }
}, 0);

Maintainers

• Elias Sjögreen (@eliassjogreen)

Permission Table

Permission Needed	Required	Reason
--allow-env	yes	For development variables.
--allow-net	yes	For getting the prebuild binaries.
--allow-read	yes	For reading the library.
--allow-plugin	yes	It's a plugin, what do you expect.
--unstable	yes	It's unstable because it is a plugin.

Other

Related

• winit

Contribution

Pull request, issues and feedback are very welcome. Code style is formatted with deno fmt and commit messages are done following Conventional Commits spec.

Licence

Copyright 2020-2021, the denosaurs team. All rights reserved. MIT license.

pane's Issues

Deno.openPlugin is not a function

In deno 1.13.2, I get Deno.openPlugin is not a function when I try to use pane:

import { PaneEventLoop, PaneWindow } from "https://deno.land/x/pane/mod.ts";

const eventLoop = new PaneEventLoop();
const _pane = new PaneWindow(eventLoop);

setInterval(() => {
  for (const event of eventLoop.step()) {
    if (
      event.type === "windowEvent" &&
      event.value.event.type === "closeRequested"
    ) {
      Deno.exit();
    }
  }
}, 0);

deno run --unstable --allow-all ./panetest.ts 

[0.2.1] examples/window.ts - Segmentation fault on Ubuntu 21.04

$ deno run -Ar --unstable https://deno.land/x/[email protected]/examples/window.ts

fails with

Segmentation fault (core dumped)

PS: Pane is exactly what I was looking for! 🎉 Looking forward to getting it working/playing with it 😄

TypeError: Deno.openPlugin is not a function

trying to run the demo

deno run -Ar --unstable https://deno.land/x/[email protected]/examples/window.ts

error: Uncaught (in promise) TypeError: Deno.openPlugin is not a function
  return Deno.openPlugin(file.path);
              ^
    at Module.prepare (https://deno.land/x/[email protected]/plug.ts:81:15)
    at async https://deno.land/x/[email protected]/plugin.ts:10:1

todo: update https://deno.land/x/plug

Sporadic Segfault/Access Violation

When testing this extension, I faced many segfaults errors. After some tests, I noticed that replacing the Vec<Event> to a () in the event_loop_step function fixes the segfault. So this issue is probably related to denoland/deno#10534

readme typo: Singe window

-Singe window
+Single window