Mirrors/leptos
2
0
Fork 0
mirror of https://github.com/leptos-rs/leptos synced 2024-11-10 06:44:17 +00:00
Code Issues Projects Releases Packages Wiki Activity

Add a counter example that does not use macros (#373)

Browse source
This commit is contained in:
Markus Kohlhase 2023-01-26 03:10:16 +01:00 committed by GitHub
parent 4c24795ffd
commit 154e42f3f4
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
7 changed files with 144 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

13
examples/counter_without_macros/Cargo.toml Normal file
View file

@ -0,0 +1,13 @@
[package]
name = "counter_without_macros"
version = "0.1.0"
edition = "2021"
[dependencies]
leptos = { path = "../../leptos", features = ["stable"] }
console_log = "0.2"
log = "0.4"
console_error_panic_hook = "0.1.7"
[dev-dependencies]
wasm-bindgen-test = "0.3.0"

5
examples/counter_without_macros/README.md Normal file
View file

@ -0,0 +1,5 @@
# Leptos Counter Example
This example is the same like the `counter` but it's written without using macros and can be build with stable Rust.
To run it, just issue the `trunk serve --open` command in the example root. This will build the app, run it, and open a new browser to serve it.

8
examples/counter_without_macros/index.html Normal file
View file

@ -0,0 +1,8 @@
<!DOCTYPE html>
<html>
<head>
<link data-trunk rel="rust" data-wasm-opt="z"/>
<link data-trunk rel="icon" type="image/ico" href="/public/favicon.ico"/>
</head>
<body></body>
</html>

BIN
examples/counter_without_macros/public/favicon.ico Normal file
View file

Binary file not shown.
Side by side

After

Width:  |  Height:  |  Size: 15 KiB

44
examples/counter_without_macros/src/lib.rs Normal file
View file

@ -0,0 +1,44 @@
use leptos::{ev, *};
pub struct Props {
/// The starting value for the counter
pub initial_value: i32,
/// The change that should be applied each time the button is clicked.
pub step: i32,
}
/// A simple counter view.
pub fn view(cx: Scope, props: Props) -> impl IntoView {
let Props {
initial_value,
step,
} = props;
let (value, set_value) = create_signal(cx, initial_value);
div(cx)
.child((
cx,
button(cx)
.on(ev::click, move |_| set_value.update(|value| *value = 0))
.child((cx, "Clear")),
))
.child((
cx,
button(cx)
.on(ev::click, move |_| set_value.update(|value| *value -= step))
.child((cx, "-1")),
))
.child((
cx,
span(cx)
.child((cx, "Value: "))
.child((cx, move || value.get()))
.child((cx, "!")),
))
.child((
cx,
button(cx)
.on(ev::click, move |_| set_value.update(|value| *value += step))
.child((cx, "+1")),
))
}

16
examples/counter_without_macros/src/main.rs Normal file
View file

@ -0,0 +1,16 @@
use counter_without_macros as counter;
use leptos::*;
pub fn main() {
_ = console_log::init_with_level(log::Level::Debug);
console_error_panic_hook::set_once();
mount_to_body(|cx| {
counter::view(
cx,
counter::Props {
initial_value: 0,
step: 1,
},
)
})
}

58
examples/counter_without_macros/tests/mod.rs Normal file
View file

@ -0,0 +1,58 @@
use wasm_bindgen_test::*;
wasm_bindgen_test_configure!(run_in_browser);
use counter_without_macros as counter;
use leptos::*;
use web_sys::HtmlElement;
#[wasm_bindgen_test]
fn inc() {
mount_to_body(|cx| {
counter::view(
cx,
counter::Props {
initial_value: 0,
step: 1,
},
)
});
let document = leptos::document();
let div = document.query_selector("div").unwrap().unwrap();
let clear = div
.first_child()
.unwrap()
.dyn_into::<HtmlElement>()
.unwrap();
let dec = clear
.next_sibling()
.unwrap()
.dyn_into::<HtmlElement>()
.unwrap();
let text = dec
.next_sibling()
.unwrap()
.dyn_into::<HtmlElement>()
.unwrap();
let inc = text
.next_sibling()
.unwrap()
.dyn_into::<HtmlElement>()
.unwrap();
inc.click();
inc.click();
assert_eq!(text.text_content(), Some("Value: 2!".to_string()));
dec.click();
dec.click();
dec.click();
dec.click();
assert_eq!(text.text_content(), Some("Value: -2!".to_string()));
clear.click();
assert_eq!(text.text_content(), Some("Value: 0!".to_string()));
}