gui: split host:port pasted into address field

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

gui/src/main.rs

@@ -16,6 +16,15 @@ fn address_is_valid(addr: &str) -> bool {
     !addr.is_empty() && !addr.contains(':')
 }
 
+fn split_host_port(input: &str) -> (String, Option<String>) {
+    if let Some((host, port)) = input.rsplit_once(':') {
+        if !port.is_empty() && port.chars().all(|c| c.is_ascii_digit()) {
+            return (host.to_string(), Some(port.to_string()));
+        }
+    }
+    (input.to_string(), None)
+}
+
 #[derive(Clone, Copy, PartialEq, Eq)]
 pub enum UserIcon {
     Normal,
@@ -830,6 +839,7 @@ fn AddServerModal(on_save: EventHandler<ServerEntry>, on_cancel: EventHandler<()
             .unwrap_or_default()
     });
     let mut password = use_signal(|| String::new());
+    let mut address_paste_pending = use_signal(|| false);
     let mut submit_attempted = use_signal(|| false);
 
     let do_save = move |_| {
@@ -897,7 +907,19 @@ fn AddServerModal(on_save: EventHandler<ServerEntry>, on_cancel: EventHandler<()
                         placeholder: "mumble.example.com",
                         pattern: ADDRESS_PATTERN,
                         value: "{address.read()}",
-                        oninput: move |evt| address.set(evt.value().clone()),
+                        onpaste: move |_| address_paste_pending.set(true),
+                        oninput: move |evt| {
+                            if address_paste_pending() {
+                                address_paste_pending.set(false);
+                                let (host, maybe_port) = split_host_port(&evt.value());
+                                address.set(host);
+                                if let Some(p) = maybe_port {
+                                    port.set(p);
+                                }
+                            } else {
+                                address.set(evt.value());
+                            }
+                        },
                         required: true,
                     }
                     div {
@@ -975,6 +997,7 @@ fn EditServerModal(
     let mut port = use_signal(|| entry.port.to_string());
     let mut username = use_signal(|| entry.username.clone());
     let mut password = use_signal(|| entry.password.clone().unwrap_or_default());
+    let mut address_paste_pending = use_signal(|| false);
 
     let do_save = move |_| {
         let port_num: u16 = port.read().parse().unwrap_or(64738);
@@ -1025,7 +1048,19 @@ fn EditServerModal(
                         placeholder: "mumble.example.com",
                         pattern: ADDRESS_PATTERN,
                         value: "{address.read()}",
-                        oninput: move |evt| address.set(evt.value().clone()),
+                        onpaste: move |_| address_paste_pending.set(true),
+                        oninput: move |evt| {
+                            if address_paste_pending() {
+                                address_paste_pending.set(false);
+                                let (host, maybe_port) = split_host_port(&evt.value());
+                                address.set(host);
+                                if let Some(p) = maybe_port {
+                                    port.set(p);
+                                }
+                            } else {
+                                address.set(evt.value());
+                            }
+                        },
                         required: true,
                     }
                     div {