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[examples] paint - port to rust 2018

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This commit is contained in:
LachezarLechev 2018-12-12 08:12:51 +01:00
parent e1d11fda95
commit 55f199ee77
2 changed files with 4 additions and 7 deletions
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1
examples/paint/Cargo.toml
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@ -2,6 +2,7 @@
name = "wasm-bindgen-paint" name = "wasm-bindgen-paint"
version = "0.1.0" version = "0.1.0"
authors = ["The wasm-bindgen Developers"] authors = ["The wasm-bindgen Developers"]
edition = "2018"
[lib] [lib]
crate-type = ["cdylib"] crate-type = ["cdylib"]

10
examples/paint/src/lib.rs
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@ -1,7 +1,3 @@
extern crate js_sys;
extern crate wasm_bindgen;
extern crate web_sys;
use std::cell::Cell; use std::cell::Cell;
use std::rc::Rc; use std::rc::Rc;
use wasm_bindgen::prelude::*; use wasm_bindgen::prelude::*;
@ -30,7 +26,7 @@ pub fn start() -> Result<(), JsValue> {
context.begin_path(); context.begin_path();
context.move_to(event.offset_x() as f64, event.offset_y() as f64); context.move_to(event.offset_x() as f64, event.offset_y() as f64);
pressed.set(true); pressed.set(true);
}) as Box<FnMut(_)>); }) as Box<dyn FnMut(_)>);
canvas.add_event_listener_with_callback("mousedown", closure.as_ref().unchecked_ref())?; canvas.add_event_listener_with_callback("mousedown", closure.as_ref().unchecked_ref())?;
closure.forget(); closure.forget();
} }
@ -44,7 +40,7 @@ pub fn start() -> Result<(), JsValue> {
context.begin_path(); context.begin_path();
context.move_to(event.offset_x() as f64, event.offset_y() as f64); context.move_to(event.offset_x() as f64, event.offset_y() as f64);
} }
}) as Box<FnMut(_)>); }) as Box<dyn FnMut(_)>);
canvas.add_event_listener_with_callback("mousemove", closure.as_ref().unchecked_ref())?; canvas.add_event_listener_with_callback("mousemove", closure.as_ref().unchecked_ref())?;
closure.forget(); closure.forget();
} }
@ -55,7 +51,7 @@ pub fn start() -> Result<(), JsValue> {
pressed.set(false); pressed.set(false);
context.line_to(event.offset_x() as f64, event.offset_y() as f64); context.line_to(event.offset_x() as f64, event.offset_y() as f64);
context.stroke(); context.stroke();
}) as Box<FnMut(_)>); }) as Box<dyn FnMut(_)>);
canvas.add_event_listener_with_callback("mouseup", closure.as_ref().unchecked_ref())?; canvas.add_event_listener_with_callback("mouseup", closure.as_ref().unchecked_ref())?;
closure.forget(); closure.forget();
} }