add virtual display

Signed-off-by: fufesou <shuanglongchen@yeah.net>

src/server/video_service.rs

@@ -32,6 +32,7 @@ use std::{
     io::ErrorKind::WouldBlock,
     time::{self, Duration, Instant},
 };
+use virtual_display;
 
 const WAIT_BASE: i32 = 17;
 pub const NAME: &'static str = "video";
@@ -446,6 +447,12 @@ fn get_current_display() -> ResultType<(usize, usize, Display)> {
     let mut current = *CURRENT_DISPLAY.lock().unwrap() as usize;
     let mut displays = Display::all()?;
     if displays.len() == 0 {
+        // try plugin monitor
+        if virtual_display::is_device_created() {
+            if let Err(e) = virtual_display::plug_in_monitor() {
+                log::error!("plug in monitor failed {}", e)
+            }
+        }
         bail!("No displays");
     }
     let n = displays.len();

src/ui.rs

@@ -19,6 +19,7 @@ use std::{
     process::Child,
     sync::{Arc, Mutex},
 };
+use virtual_display;
 
 pub type Childs = Arc<Mutex<(bool, HashMap<(String, String), Child>)>>;
 
@@ -364,6 +365,18 @@ impl UI {
         }
     }
 
+    // TODO: ui prompt
+    fn install_virtual_display(&self) {
+        match virtual_display::install_update_driver() {
+            Ok(_) => {
+                log::info!("Virtual Display: install virtual display done");
+            }
+            Err(e) => {
+                log::error!("Virtual Display: install virtual display failed {}", e);
+            }
+        }
+    }
+
     fn install_path(&mut self) -> String {
         #[cfg(windows)]
         return crate::platform::windows::get_install_info().1;
@@ -690,6 +703,7 @@ impl sciter::EventHandler for UI {
         fn get_sound_inputs();
         fn set_options(Value);
         fn set_option(String, String);
+        fn install_virtual_display();
         fn get_software_update_url();
         fn get_new_version();
         fn get_version();

src/ui/index.tis

@@ -168,6 +168,7 @@ class MyIdMenu: Reactor.Component {
                 <li #custom-server>{translate('ID/Relay Server')}</li>
                 <li #whitelist title={translate('whitelist_tip')}>{translate('IP Whitelisting')}</li>
                 <li #socks5-server>{translate('Socks5 Proxy')}</li>
+                {is_win ? <li #install-virtual-display>Install virtual display</li> : ""}
                 <div .separator />
                 <li #stop-service class={service_stopped ? "line-through" : "selected"}><span>{svg_checkmark}</span>{translate("Enable Service")}</li>
                 <DirectServer />
@@ -268,6 +269,8 @@ class MyIdMenu: Reactor.Component {
                 }
                 handler.set_socks(proxy, username, password);
             }, 240);
+        } else if (me.id == "install-virtual-display") {
+            handler.install_virtual_display();
         } else if (me.id == "stop-service") {
             handler.set_option("stop-service", service_stopped ? "" : "Y");
         } else if (me.id == "about") {