fix: few issues with property-get subcommand

Author: Byson94

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to `ewwii` are documented here.
 This changelog follows the [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) format,
 and this project adheres to [Semantic Versioning](https://semver.org/).
 
+## [UNRELEASED]
+
+### Fixed
+
+- A few issue related with `property-get` subcommand.
+
 ## [0.4.0] - 2026-02-14
 
 ### Added

crates/ewwii/src/app.rs

@@ -809,8 +809,12 @@ impl<B: DisplayBackend> App<B> {
                     if let Some(widget_registry) = maybe_registry.as_mut() {
                         let property_value = widget_registry
                             .get_property_by_name(&widget_name, &property)
-                            .unwrap_or(String::new());
-                        return Ok(property_value);
+                            .ok_or_else(|| anyhow::anyhow!(
+                                "Property '{}' not found or wrong type",
+                                property
+                            ))?;
+
+                        return Ok(property_value)
                     } else {
                         log::error!("Widget registry is empty");
                     }

crates/ewwii/src/widgets/widget_definitions.rs

@@ -242,10 +242,29 @@ impl WidgetRegistry {
     }
 
     pub fn get_property_by_name(&self, widget_name: &str, property: &str) -> Option<String> {
-        let entry =
-            self.widgets.values().find(|entry| entry.widget.widget_name() == widget_name)?;
+        let entry = self.widgets
+            .values()
+            .find(|entry| entry.widget.widget_name() == widget_name)?;
 
-        Some(entry.widget.property(property))
+        let value: glib::Value = entry.widget.property_value(property);
+
+        if let Ok(s) = value.get::<String>() {
+            return Some(s);
+        }
+
+        if let Ok(b) = value.get::<bool>() {
+            return Some(b.to_string());
+        }
+
+        if let Ok(i) = value.get::<i32>() {
+            return Some(i.to_string());
+        }
+
+        if let Ok(f) = value.get::<f64>() {
+            return Some(f.to_string());
+        }
+
+        None
     }
 
     pub fn update_property_by_name(