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feat: rewrite to use Deno FFI #99

Merged
merged 7 commits into from
Jan 26, 2022
Merged

feat: rewrite to use Deno FFI #99

merged 7 commits into from
Jan 26, 2022

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littledivy
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@littledivy littledivy commented Dec 20, 2021 •
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Breaking Changes

  • Synchronous API.
    • Most of the calls get offloaded to the web renderer anyways. Also probably don't want to go through the overhead of spawning a tokio green thread in non blocking FFI.
    • Note that this does not block the JS event loop but spawning multiple webviews (one at a time) is still possible. This is a design limitation. One solution to this is native support for FFI callbacks (WIP)
  • Leverage JS setters
    • setTitle changes to a setter on webview.title. Same for setSize

cc @eliassjogreen

Closes #96
Closes #98
Closes #94
Closes #6
Closes #76
Closes #89
Closes #79

@littledivy littledivy changed the title rewrite to use Deno FFI [wip] rewrite to use Deno FFI Dec 20, 2021
@littledivy
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One final blocker denoland/deno#13162

@brandonros
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might want to update the README to disclose that you got rid of the need for https://github.com/webview/webview_deno#deno https://github.com/denosaurs/plug

@brandonros brandonros mentioned this pull request Dec 27, 2021
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@eliassjogreen
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@brandonros Plug will still be needed for this pr as to allow for versioned caching of dylibs and easy loading from urls.

brandonros
brandonros reviewed Dec 27, 2021
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@eliassjogreen eliassjogreen mentioned this pull request Jan 8, 2022
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justinmchase
justinmchase reviewed Jan 10, 2022
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@littledivy
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littledivy commented Jan 10, 2022 •
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@eliassjogreen Callback support in Deno FFI is blocked on rusty_v8's Locker API. I had a small discussion internally and we (Deno) are not so sure about the concept of Rust calling into V8.

To unblock deno_webview, maybe we should just do a wrapper to the callbacks? This increases maintenance but was already the case with plugins. WDYT?

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Sure, that sounds like a good idea until callback support is added.

@nnmrts
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nnmrts commented Jan 13, 2022

Sorry for going a bit off-topic but I just wanted to say I added a small bounty for issue #96 (which should be closed by this PR) to express my excitement and gratefulness. Thanks for the work y'all put in so far. I would try to help if I had any knowledge of rust or this FFI stuff. 😝

@littledivy littledivy marked this pull request as ready for review January 14, 2022 04:40
@littledivy littledivy changed the title [wip] rewrite to use Deno FFI feat: rewrite to use Deno FFI Jan 14, 2022
eliassjogreen
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Could you also update the version tag in Cargo.toml

@brandonros
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you might want to delete the empty .gitmodules leftover file

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@eliassjogreen anything left review wise?

@eliassjogreen eliassjogreen merged commit a91588e into webview:main Jan 26, 2022
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brandonros commented Jan 27, 2022 •
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Running the README example:

import { Webview } from "https://deno.land/x/webview/mod.ts";

const html = `
  <html>
  <body>
    <h1>Hello from deno v${Deno.version.deno}</h1>
  </body>
  </html>
`;

const webview = new Webview();
webview.navigate(`data:text/html,${encodeURIComponent(html)}`);
webview.run();
error: TS2571 [ERROR]: Object is of type 'unknown'.
    sys.symbols.deno_webview_get_recv().then((recv) => {
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    at https://deno.land/x/webview@0.7.0-pre.0/src/webview.ts:62:5

TS7006 [ERROR]: Parameter 'recv' implicitly has an 'any' type.
    sys.symbols.deno_webview_get_recv().then((recv) => {
                                              ~~~~
    at https://deno.land/x/webview@0.7.0-pre.0/src/webview.ts:62:47

Found 2 errors.

Not sure if you need to release?

Edit: needed deno v1.18.0

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Strange i am not getting the same error when running locally, have you tried the --reload flag? could be some cache issue

@littledivy littledivy deleted the rewrite_ffi branch January 27, 2022 02:52
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@eliassjogreen eliassjogreen eliassjogreen requested changes

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