mirror of
https://github.com/fluencelabs/wasm-bindgen
synced 2025-04-21 20:22:14 +00:00
36b854b69c
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
68 lines
1.3 KiB
Rust
Executable File
68 lines
1.3 KiB
Rust
Executable File
extern crate js_sys;
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extern crate wasm_bindgen;
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extern crate web_sys;
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use std::f64;
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use wasm_bindgen::prelude::*;
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use wasm_bindgen::JsCast;
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#[wasm_bindgen]
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pub fn draw() {
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let document = web_sys::Window::document().unwrap();
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let canvas = document.get_element_by_id("canvas").unwrap();
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let canvas: web_sys::HtmlCanvasElement = canvas
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.dyn_into::<web_sys::HtmlCanvasElement>()
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.map_err(|_| ())
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.unwrap();
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let context = canvas
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.get_context("2d")
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.unwrap()
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.unwrap()
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.dyn_into::<web_sys::CanvasRenderingContext2D>()
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.unwrap();
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context.begin_path();
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// Draw the outer circle.
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context.arc(
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75.0,
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75.0,
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50.0,
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0.0,
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f64::consts::PI * 2.0,
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).unwrap();
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// Draw the mouth.
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context.move_to(110.0, 75.0);
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context.arc(
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75.0,
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75.0,
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35.0,
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0.0,
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f64::consts::PI,
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).unwrap();
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// Draw the left eye.
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context.move_to(65.0, 65.0);
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context.arc(
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60.0,
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65.0,
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5.0,
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0.0,
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f64::consts::PI * 2.0,
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).unwrap();
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// Draw the right eye.
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context.move_to(95.0, 65.0);
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context.arc(
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90.0,
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65.0,
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5.0,
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0.0,
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f64::consts::PI * 2.0,
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).unwrap();
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context.stroke();
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}
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