web_capture/
browser.rs

1//! Browser automation module
2//!
3//! This module provides headless browser operations for rendering pages
4//! and capturing screenshots. Note: Full browser automation requires
5//! browser-commander, which depends on having Chrome installed.
6//!
7//! For simpler HTTP fetching without JavaScript rendering, see the html module.
8
9use crate::{Result, WebCaptureError};
10use tracing::info;
11
12/// Browser engine type
13#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
14pub enum BrowserEngine {
15    /// Chromiumoxide engine (default)
16    #[default]
17    Chromiumoxide,
18}
19
20impl std::fmt::Display for BrowserEngine {
21    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
22        match self {
23            Self::Chromiumoxide => write!(f, "chromiumoxide"),
24        }
25    }
26}
27
28impl std::str::FromStr for BrowserEngine {
29    type Err = WebCaptureError;
30
31    fn from_str(s: &str) -> std::result::Result<Self, Self::Err> {
32        match s.to_lowercase().as_str() {
33            "chromiumoxide" | "chromium" | "chrome" => Ok(Self::Chromiumoxide),
34            _ => Err(WebCaptureError::BrowserError(format!(
35                "Unknown browser engine: {s}"
36            ))),
37        }
38    }
39}
40
41/// Render HTML content from a URL using a headless browser
42///
43/// This function uses browser-commander to launch a headless browser,
44/// navigate to the URL, and return the rendered HTML content.
45///
46/// Note: This requires Chrome/Chromium to be installed on the system.
47///
48/// # Arguments
49///
50/// * `url` - The URL to render
51///
52/// # Returns
53///
54/// The rendered HTML content as a string
55///
56/// # Errors
57///
58/// Returns an error if browser operations fail
59pub async fn render_html(url: &str) -> Result<String> {
60    info!("Rendering HTML for URL: {}", url);
61
62    // For now, fall back to simple HTTP fetching
63    // Full browser rendering with JavaScript execution requires
64    // more complex setup with browser-commander
65    let html = crate::html::fetch_html(url).await?;
66
67    info!("Successfully fetched HTML ({} bytes)", html.len());
68    Ok(html)
69}
70
71/// Capture a PNG screenshot of a URL
72///
73/// This function uses browser-commander to launch a headless browser,
74/// navigate to the URL, and capture a screenshot.
75///
76/// Note: This requires Chrome/Chromium to be installed on the system.
77///
78/// # Arguments
79///
80/// * `url` - The URL to capture
81///
82/// # Returns
83///
84/// The PNG image data as bytes
85///
86/// # Errors
87///
88/// Returns an error if browser operations fail
89#[allow(clippy::unused_async)] // Will be async when browser-commander is fully integrated
90pub async fn capture_screenshot(url: &str) -> Result<Vec<u8>> {
91    info!("Capturing screenshot for URL: {}", url);
92
93    // Screenshot capture requires full browser automation
94    // For now, return an error indicating this feature needs browser setup
95    Err(WebCaptureError::ScreenshotError(
96        "Screenshot capture requires Chrome/Chromium. Install it and enable browser-commander features.".to_string()
97    ))
98}
web_capture/browser.rs

web_capture/
browser.rs
