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use crate::AutomationError;
use std::process::Command;
use tracing::info;
/// Configuration for virtual display
#[derive(Debug, Clone)]
pub struct VirtualDisplayConfig {
pub width: u32,
pub height: u32,
pub color_depth: u32,
pub refresh_rate: u32,
pub driver_path: Option<String>,
}
impl Default for VirtualDisplayConfig {
fn default() -> Self {
Self {
width: 1920,
height: 1080,
color_depth: 32,
refresh_rate: 60,
driver_path: None,
}
}
}
/// Manages virtual display for headless UI automation
pub struct VirtualDisplayManager {
pub config: VirtualDisplayConfig,
session_id: Option<u32>,
is_initialized: bool,
}
impl VirtualDisplayManager {
pub fn new(config: VirtualDisplayConfig) -> Self {
Self {
config,
session_id: None,
is_initialized: false,
}
}
/// Initialize virtual display using Windows Virtual Display Driver
pub fn initialize(&mut self) -> Result<(), AutomationError> {
info!(
"Initializing virtual display: {}x{}",
self.config.width, self.config.height
);
// For MVP, we'll detect if we're in a headless environment
// and set up accordingly
if is_headless_environment() {
info!("Headless environment detected, setting up virtual session");
self.session_id = Some(0); // Virtual session ID
self.create_virtual_session()?;
} else {
// Get current session ID from environment or use default
self.session_id = Some(1);
info!("Using session ID: {:?}", self.session_id);
}
// Mark as initialized
self.is_initialized = true;
info!("Virtual display initialized");
Ok(())
}
/// Create a virtual display context
#[allow(dead_code)]
fn create_virtual_display(&mut self) -> Result<(), AutomationError> {
// For the MVP, we'll use a simpler approach that doesn't require
// direct Windows API calls that may not be available
info!("Creating virtual display context");
// The actual display creation would happen here if we had
// a virtual display driver installed
if self.config.driver_path.is_some() {
info!("Virtual display driver configured, would use driver-based display");
} else {
info!("No driver configured, using default virtual session");
}
Ok(())
}
/// Create a memory-based display as fallback
#[allow(dead_code)]
fn create_memory_display(&mut self) -> Result<(), AutomationError> {
// Simplified approach for MVP
info!("Setting up memory-based virtual display");
// In a real implementation, we would:
// 1. Create a memory device context
// 2. Set up a bitmap for rendering
// 3. Configure the display properties
self.is_initialized = true;
Ok(())
}
/// Create a virtual session for headless operation
fn create_virtual_session(&mut self) -> Result<(), AutomationError> {
// This would typically involve:
// 1. Creating a new window station
// 2. Creating a new desktop
// 3. Setting up the session for UI automation
// For MVP, we'll use a simpler approach
info!("Setting up virtual session for headless operation");
// Ensure we have a valid window station and desktop
// This is simplified - full implementation would create new ones
Ok(())
}
/// Install virtual display driver if needed
pub fn install_driver(&self) -> Result<(), AutomationError> {
if let Some(driver_path) = &self.config.driver_path {
info!("Installing virtual display driver from: {}", driver_path);
let output = Command::new("pnputil")
.args(["/add-driver", driver_path, "/install"])
.output()
.map_err(|e| {
AutomationError::PlatformError(format!("Failed to install driver: {e}"))
})?;
if !output.status.success() {
let stderr = String::from_utf8_lossy(&output.stderr);
return Err(AutomationError::PlatformError(format!(
"Driver installation failed: {stderr}"
)));
}
info!("Virtual display driver installed successfully");
}
Ok(())
}
/// Check if virtual display is available
pub fn is_available(&self) -> bool {
self.is_initialized
}
/// Get the current session ID
pub fn get_session_id(&self) -> Option<u32> {
self.session_id
}
/// Cleanup virtual display resources
pub fn cleanup(&mut self) {
self.is_initialized = false;
info!("Virtual display cleaned up");
}
}
impl Drop for VirtualDisplayManager {
fn drop(&mut self) {
self.cleanup();
}
}
/// Helper to check if we're running in a headless environment
pub fn is_headless_environment() -> bool {
// Check environment variables that might indicate headless operation
if let Ok(val) = std::env::var("COMPUTERUSE_HEADLESS") {
return val.to_lowercase() == "true" || val == "1";
}
// Additional checks could be added here for:
// - Checking if running as a service
// - Detecting container environments
// - Checking for remote sessions
false
}
/// Configuration for running computeruse in virtual/headless mode
#[derive(Debug, Clone)]
pub struct HeadlessConfig {
pub use_virtual_display: bool,
pub virtual_display_config: VirtualDisplayConfig,
pub fallback_to_memory: bool,
}
impl Default for HeadlessConfig {
fn default() -> Self {
Self {
use_virtual_display: is_headless_environment(),
virtual_display_config: VirtualDisplayConfig::default(),
fallback_to_memory: true,
}
}
}