refactor: improve the XML parsing

crates/gpapi/src/utils/window.rs

@@ -1,7 +1,7 @@
 use std::{process::ExitStatus, time::Duration};
 
 use anyhow::bail;
-use log::{info, warn};
+use log::info;
 use tauri::Window;
 use tokio::process::Command;
 
@@ -33,7 +33,7 @@ pub fn raise_window(win: &Window) -> anyhow::Result<()> {
     let title = win.title()?;
     tokio::spawn(async move {
       if let Err(err) = wmctrl_raise_window(&title).await {
-        warn!("Failed to raise window: {}", err);
+        info!("Window not raised: {}", err);
       }
     });
   }

crates/gpapi/src/utils/xml.rs

@@ -1,17 +1,27 @@
 use roxmltree::Node;
 
 pub(crate) trait NodeExt<'a> {
+  fn find_descendant(&self, name: &str) -> Option<Node<'a, 'a>>;
+  fn descendant_text(&self, name: &str) -> Option<&'a str>;
+
   fn find_child(&self, name: &str) -> Option<Node<'a, 'a>>;
   fn child_text(&self, name: &str) -> Option<&'a str>;
 }
 
 impl<'a> NodeExt<'a> for Node<'a, 'a> {
-  fn find_child(&self, name: &str) -> Option<Node<'a, 'a>> {
+  fn find_descendant(&self, name: &str) -> Option<Node<'a, 'a>> {
     self.descendants().find(|n| n.has_tag_name(name))
   }
 
+  fn descendant_text(&self, name: &str) -> Option<&'a str> {
+    self.find_descendant(name).and_then(|node| node.text())
+  }
+
+  fn find_child(&self, name: &str) -> Option<Node<'a, 'a>> {
+    self.children().find(|n| n.has_tag_name(name))
+  }
+
   fn child_text(&self, name: &str) -> Option<&'a str> {
-    let node = self.find_child(name)?;
-    node.text()
+    self.find_child(name).and_then(|node| node.text())
   }
 }