refactor(custom): split into enum with separate file per widget

src/modules/custom/label.rs

@@ -0,0 +1,42 @@
+use super::{CustomWidget, CustomWidgetContext};
+use crate::dynamic_string::DynamicString;
+use gtk::prelude::*;
+use gtk::Label;
+use serde::Deserialize;
+
+#[derive(Debug, Deserialize, Clone)]
+pub struct LabelWidget {
+    name: Option<String>,
+    class: Option<String>,
+    label: Option<String>,
+}
+
+impl CustomWidget for LabelWidget {
+    type Widget = Label;
+
+    fn into_widget(self, _context: CustomWidgetContext) -> Self::Widget {
+        let mut builder = Label::builder().use_markup(true);
+
+        if let Some(name) = self.name {
+            builder = builder.name(name);
+        }
+
+        let label = builder.build();
+
+        if let Some(class) = self.class {
+            label.style_context().add_class(&class);
+        }
+
+        let text = self.label.map_or_else(String::new, |text| text);
+
+        {
+            let label = label.clone();
+            DynamicString::new(&text, move |string| {
+                label.set_label(&string);
+                Continue(true)
+            });
+        }
+
+        label
+    }
+}