Show windows from URL command-line arguments

URLs can now be provided as command-line arguments.  Each one provided
will be opened in a separate window.  It will have to be up to the
window manager to place each window on a separate monitor, as although
there is a `Window::fullscreen_on_monitor` method, it doesn't actually
work.

src/main.rs

@@ -6,50 +6,52 @@ use webkit2gtk::{WebView, WebViewExt};
 fn main() {
     gtk::init().unwrap();
 
-    let window = Window::new(WindowType::Toplevel);
-    window.connect_delete_event(|_, _| {
-        gtk::main_quit();
-        glib::Propagation::Proceed
-    });
+    let mut args = std::env::args();
+    args.next();
 
-    let webview = WebView::new();
-    webview.connect_load_changed(|_, load_event| {
-        eprintln!("Loaded: {load_event:?}");
-    });
-    webview.connect_load_failed(|_, load_event, failing_uri, error| {
-        eprintln!(
-            "Load failed: {load_event:?} while loading {failing_uri} - {}",
-            error.message()
-        );
-        false
-    });
-    webview.connect_load_failed_with_tls_errors(|_, host, _, errors| {
-        eprintln!("Load failed: {errors:?} while contacting {host}");
-        false
-    });
+    let args: Vec<_> = args.collect();
+    if args.is_empty() {
+        eprintln!("No URLs provided");
+        std::process::exit(2);
+    }
 
-    window.add(&webview);
+    for url in args {
+        let window = Window::new(WindowType::Toplevel);
+        window.connect_delete_event(|_, _| {
+            gtk::main_quit();
+            glib::Propagation::Proceed
+        });
 
-    window.show_all();
-    window.fullscreen();
+        let webview = WebView::new();
+        webview.connect_load_changed(|_, load_event| {
+            eprintln!("Loaded: {load_event:?}");
+        });
+        webview.connect_load_failed(|_, load_event, failing_uri, error| {
+            eprintln!(
+                "Load failed: {load_event:?} while loading {failing_uri} - {}",
+                error.message()
+            );
+            false
+        });
+        webview.connect_load_failed_with_tls_errors(|_, host, _, errors| {
+            eprintln!("Load failed: {errors:?} while contacting {host}");
+            false
+        });
+        webview.connect_resource_load_started(|_, resource, uri| {
+            eprintln!("Resource load started: {resource:?} {uri:?}");
+        });
+        webview.connect_web_process_terminated(|_, reason| {
+            eprintln!("Web process crashed: {reason:?}");
+        });
 
-    let (sender, receiver) = async_channel::unbounded();
-    std::thread::spawn(move || {
-        tokio::runtime::Builder::new_current_thread()
-            .enable_all()
-            .build()
-            .unwrap()
-            .block_on(async {
-                sender
-                    .send("https://kitchen.pyrocufflink.blue/")
-                    .await
-                    .unwrap();
-            })
-    });
-    glib::spawn_future_local(async move {
-        let url = receiver.recv().await.unwrap();
-        webview.load_uri(url);
-    });
+        window.add(&webview);
+
+        window.show_all();
+        window.fullscreen();
+
+        eprintln!("Navingating to {url}");
+        webview.load_uri(&url);
+    }
 
     gtk::main();
 }