1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40

use wasm_bindgen::UnwrapThrowExt;

pub fn window() -> web_sys::Window {
    web_sys::window().expect_throw("Unable to get window")
}

pub fn document() -> web_sys::Document {
    window().document().expect_throw("Unable to get document")
}

pub fn alert(message: &str) {
    window()
        .alert_with_message(message)
        .expect_throw("Error on displaying alert dialog");
}

pub fn confirm(message: &str) -> bool {
    window()
        .confirm_with_message(message)
        .expect_throw("Error on displaying confirm dialog")
}

pub fn prompt(message: &str, default_value: Option<&str>) -> Option<String> {
    match default_value {
        Some(default_value) => window()
            .prompt_with_message_and_default(message, default_value)
            .expect_throw("Error on getting user input with default value from the prompt dialog"),
        None => window()
            .prompt_with_message(message)
            .expect_throw("Error on getting user input from the prompt dialog"),
    }
}

pub(crate) fn register_event_listener_on_window(event: &str, listener: &js_sys::Function) {
    let window = crate::utils::window();
    let window: &web_sys::EventTarget = window.as_ref();
    window
        .add_event_listener_with_callback(event, listener)
        .expect_throw("Unable to register event listener on window");
}