Browser Commander

A Rust library for universal browser automation that provides a unified API for different browser automation engines. The key focus is on stoppable page triggers - ensuring automation logic is properly mounted/unmounted during page navigation.

Installation

Add this to your Cargo.toml:

[dependencies]
browser-commander = "0.4"
tokio = { version = "1.0", features = ["full"] }

Core Concept: Page State Machine

Browser Commander manages the browser as a state machine with two states:

+------------------+                      +------------------+
|                  |   navigation start   |                  |
|  WORKING STATE   | -------------------> |  LOADING STATE   |
|  (action runs)   |                      |  (wait only)     |
|                  |   <-----------------  |                  |
+------------------+     page ready       +------------------+

LOADING STATE: Page is loading. Only waiting/tracking operations are allowed. No automation logic runs.

WORKING STATE: Page is fully loaded (30 seconds of network idle). Page triggers can safely interact with DOM.

Quick Start

use browser_commander::prelude::*;

#[tokio::main]
async fn main() -> anyhow::Result<()> {
    // Launch a browser with chromiumoxide engine
    let options = LaunchOptions::chromiumoxide()
        .headless(true);

    let result = launch_browser(options).await?;
    println!("Browser launched: {:?}", result.browser.engine);

    // Navigate to a URL
    let page = &result.page;
    goto(page, "https://example.com", None).await?;

    // Click a button
    click_button(page, "button.submit", None).await?;

    // Fill a text field
    fill_text_area(page, "input[name='email']", "test@example.com", None).await?;

    Ok(())
}

Features

• Unified API across multiple browser engines
• Built-in navigation safety handling
• Element visibility and scroll management
• Click, fill, and other interaction support with verification
• Async/await support with Tokio

API Reference

Browser Launch

use browser_commander::prelude::*;

// Launch with chromiumoxide (CDP-based)
let options = LaunchOptions::chromiumoxide()
    .headless(true)
    .user_data_dir("~/.browser-data");

let result = launch_browser(options).await?;

Navigation

// Navigate to URL
goto(&page, "https://example.com", None).await?;

// Navigate with options
let nav_options = NavigationOptions {
    wait_until: WaitUntil::NetworkIdle,
    timeout: Some(30000),
};
goto(&page, "https://example.com", Some(nav_options)).await?;

// Wait for URL to match condition
wait_for_url_condition(&page, |url| url.contains("success")).await?;

Element Interactions

// Click a button
click_button(&page, "button.submit", None).await?;

// Click with options
let click_options = ClickOptions {
    scroll_into_view: true,
    wait_for_navigation: true,
    ..Default::default()
};
click_button(&page, "button.submit", Some(click_options)).await?;

// Fill text area
fill_text_area(&page, "textarea.message", "Hello world", None).await?;

// Scroll element into view
scroll_into_view(&page, ".target-element", None).await?;

Element Queries

// Check visibility
let visible = is_visible(&page, ".element").await?;

// Check if enabled
let enabled = is_enabled(&page, "button.submit").await?;

// Get text content
let text = text_content(&page, ".message").await?;

// Get attribute value
let href = get_attribute(&page, "a.link", "href").await?;

// Count matching elements
let count = count(&page, ".item").await?;

Utilities

// Wait for a duration
wait(1000).await;

// Get current URL
let url = get_url(&page).await?;

// Parse URL
let parsed = parse_url("https://example.com/path?query=value")?;

// Evaluate JavaScript
let result: String = evaluate(&page, "document.title").await?;

Modules

• core - Core types and traits (constants, engine adapter, logger)
• elements - Element operations (selectors, visibility, content)
• interactions - User interactions (click, scroll, fill)
• browser - Browser management (launcher, navigation)
• utilities - General utilities (URL handling, wait operations)
• high_level - High-level DRY utilities

Prelude

For convenience, import everything commonly needed with:

use browser_commander::prelude::*;

License

UNLICENSE