feat: set to default input device when in dual-way

src/common.rs

@@ -30,6 +30,8 @@ use hbb_common::{
 // #[cfg(any(target_os = "android", target_os = "ios", feature = "cli"))]
 use hbb_common::{config::RENDEZVOUS_PORT, futures::future::join_all};
 
+use crate::ui_interface::{set_option, get_option};
+
 pub type NotifyMessageBox = fn(String, String, String, String) -> dyn Future<Output = ()>;
 
 pub const CLIPBOARD_NAME: &'static str = "clipboard";
@@ -105,6 +107,46 @@ pub fn check_clipboard(
     None
 }
 
+/// Set sound input device.
+pub fn set_sound_input(device: String) {
+    let prior_device = get_option("audio-input".to_owned());
+    if prior_device != device {
+        log::info!("switch to audio input device {}", device);
+        set_option("audio-input".to_owned(), device);
+    } else {
+        log::info!("audio input is already set to {}", device);
+    }
+}
+
+/// Get system's default sound input device name.
+#[inline]
+#[cfg(not(any(target_os = "android", target_os = "ios")))]
+pub fn get_default_sound_input() -> Option<String> {
+    #[cfg(not(target_os = "linux"))]
+    {
+        use cpal::traits::{DeviceTrait, HostTrait};
+        let host = cpal::default_host();
+        let dev = host.default_input_device();
+        return if let Some(dev) = dev {
+            match dev.name() {
+                Ok(name) => Some(name),
+                Err(_) => None,
+            }
+        } else {
+            None
+        };
+    }
+    #[cfg(target_os = "linux")]
+    {
+        let input = crate::platform::linux::get_default_pa_source();
+        return if let Some(input) = input {
+            Some(input.1)
+        } else {
+            None
+        };
+    }
+}
+
 #[cfg(not(any(target_os = "android", target_os = "ios")))]
 pub fn update_clipboard(clipboard: Clipboard, old: Option<&Arc<Mutex<String>>>) {
     let content = if clipboard.compress {
@@ -715,5 +757,5 @@ pub fn make_fd_to_json(id: i32, path: String, entries: &Vec<FileEntry>) -> Strin
 
 #[cfg(test)]
 mod test_common {
-    use super::*;
+    
 }