Struct alcro::UI

pub struct UI { /* fields omitted */ }

The browser window

Implementations

impl UI

pub fn done(&self) -> bool

Returns true if the browser is closed

pub fn wait_finish(&self)

Wait for the browser to be closed

pub fn close(&self)

Close the browser window

pub fn load(&self, content: Content) -> JSResult

Load content in the browser. It returns Err if it fails.

pub fn bind<F>(&self, name: &str, f: F) -> JSResult where
    F: Fn(&[JSObject]) -> JSResult + Sync + Send + 'static, 

Bind a rust function so that JS code can use it. It returns Err if it fails.

Arguments

• name - Name of the function
• f - The function. It should take a list of JSObject as argument and return a JSResult

Examples

#![windows_subsystem = "windows"]
use alcro::UIBuilder;
use serde_json::to_value;

let ui = UIBuilder::new().custom_args(&["--headless"]).run();
ui.bind("add", |args| {
    let mut sum = 0;
    for arg in args {
        if arg.is_i64() {
            sum += arg.as_i64().unwrap();
        } else {
            return Err(to_value("Not a number").unwrap());
        }
    }
    Ok(to_value(sum).unwrap())
}).unwrap();
assert_eq!(ui.eval("(async () => await add(1,2,3))();").unwrap(), 6);
assert!(ui.eval("(async () => await add(1,2,'hi'))();").is_err());

pub fn eval(&self, js: &str) -> JSResult

Evaluates js code and returns the result.

Examples

#![windows_subsystem = "windows"]
use alcro::UIBuilder;
let ui = UIBuilder::new().custom_args(&["--headless"]).run();
assert_eq!(ui.eval("1+1").unwrap(), 2);
assert_eq!(ui.eval("'Hello'+' World'").unwrap(), "Hello World");
assert!(ui.eval("xfgch").is_err());

pub fn set_bounds(&self, b: Bounds) -> JSResult

It changes the size, position or state of the browser window specified by the Bounds struct. It returns Err if it fails.

To change the window state alone use WindowState::to_bounds()

pub fn bounds(&self) -> Result<Bounds, JSObject>

It gets the size, position and state of the browser window. It returns Err if it fails.

Trait Implementations

impl Drop for UI

Closes the browser window

fn drop(&mut self)

Executes the destructor for this type.