11 Commits

Author SHA1 Message Date
André Luis Leal Cardoso Junior
c6a9d4851a Remove extra web_sys call 2018-12-11 11:50:25 -02:00
André Luis Leal Cardoso Junior
ceb269b28a run cargo fix --edition-idioms 2018-12-11 08:53:21 -02:00
Alex Crichton
a2aa28e4d3 Add a #[wasm_bindgen(start)] attribute
This commit adds a new attribute to `#[wasm_bindgen]`: `start`. The
`start` attribute can be used to indicate that a function should be
executed when the module is loaded, configuring the `start` function of
the wasm executable. While this doesn't necessarily literally configure
the `start` section, it does its best!

Only one crate in a crate graph may indicate `#[wasm_bindgen(start)]`,
so it's not recommended to be used in libraries but only end-user
applications. Currently this still must be used with the `crate-type =
["cdylib"]` annotation in `Cargo.toml`.

The implementation here is somewhat tricky because of the circular
dependency between our generated JS and the wasm file that we emit. This
circular dependency makes running initialization routines (like the
`start` shim) particularly fraught with complications because one may
need to run before the other but bundlers may not necessarily respect
it. Workarounds have been implemented for various emission strategies,
for example calling the start function directly after exports are wired
up with `--no-modules` and otherwise working around what appears to be
a Webpack bug with initializers running in a different order than we'd
like. In any case, this in theory doesn't show up to the end user!

Closes #74
2018-11-28 22:11:15 -08:00
Alex Crichton
717cfa303d Fix polyfill of TextEncoder and TextDecoder
This commit does a few things, including:

* Fixing the generated JS of `wasm-bindgen` to allow polyfills to work.
  (a minor tweak of the generated JS)

* All examples are updated to include a Webpack-specific polyfill for
  these two types to get examples working in Edge.

* A new page has been added to the guide about supported browsers. This
  mentions known caveats like IE 11 requiring `wasm2js` as well as
  documenting some `TextEncoder` and `TextDecoder` workarounds for Edge.

Closes #895
2018-09-30 10:16:20 -07:00
Alex Crichton
7ecf4aae87 cargo +nightly fmt --all
Rustfmt all the things!
2018-09-26 08:26:00 -07:00
Alex Crichton
f24828a16b Add a top-level web_sys::window function
Returns `Option<Window>` and can be used as a convenience to get a handle to the
global `window` object.
2018-09-17 17:36:53 -07:00
Anton Danilkin
14c2c04ccd Fix canvas test 2018-09-02 20:51:37 +03:00
Alex Crichton
36b854b69c web-sys: Add support for Global-scope methods
This commit adds further support for the `Global` attribute to not only emit
structural accessors but also emit functions that don't take `&self`. All
methods on a `[Global]` interface will not require `&self` and will call
functions and/or access properties on the global scope.

This should enable things like:

    Window::location() // returns `Location`
    Window::fetch(...) // invokes the `fetch` function

Closes #659
2018-08-28 17:20:31 -07:00
Alex Crichton
92b7de3d3d Skip args in overloaded method names if all same
This commit updates how we name overloaded methods. Previously all argument
names were concatenated, but after this commit it only concatenates argument
names where at least one possibility has a different type. Otherwise if all
possibilities have the same type name it in theory isn't adding too much more
information!

Additionally this commit also switches to using `_with_` consistently everywhere
instead of `_with_` for constructors and `_using_` for methods.

Closes #712
2018-08-20 10:30:02 -07:00
Alex Crichton
d4297ad2d3 Remove use_extern_macros features
This has now been stabilized!
2018-08-19 14:33:01 -07:00
Nick Fitzgerald
34363aff12 example: Add an example of drawing a smiley face with canvas
Adapted from https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API/Tutorial/Drawing_shapes
2018-08-15 17:40:39 -07:00