use modern (2018) pattern for modules

src/browser/main/tab/page/navigation/request.rs

@@ -0,0 +1,69 @@
+use gtk::{
+    glib::GString,
+    prelude::{EditableExt, EntryExt, WidgetExt},
+    Entry,
+};
+
+pub struct Request {
+    widget: Entry,
+}
+
+impl Request {
+    // Construct
+    pub fn new(text: Option<GString>) -> Self {
+        // GTK
+        let widget = Entry::builder()
+            .placeholder_text("URL or search term...")
+            .hexpand(true)
+            .progress_fraction(0.0)
+            .progress_pulse_step(0.1)
+            .text(match text {
+                Some(text) => text,
+                None => GString::new(),
+            })
+            .build();
+
+        // Connect events
+        widget.connect_changed(|entry| {
+            entry
+                .activate_action("win.update", None)
+                .expect("Action `win.update` not found")
+        });
+
+        widget.connect_activate(|entry| {
+            entry
+                .activate_action("win.tab_page_reload", None)
+                .expect("Action `win.tab_page_reload` not found")
+        });
+
+        // Result
+        Self { widget }
+    }
+
+    // Actions
+    pub fn update(&self) {
+        // @TODO animate progress fraction
+    }
+
+    // Setters
+    pub fn set_text(&self, value: &GString, activate: bool) {
+        self.widget.set_text(value);
+
+        if activate {
+            self.widget.emit_activate();
+        }
+    }
+
+    // Getters
+    pub fn widget(&self) -> &Entry {
+        &self.widget
+    }
+
+    pub fn is_empty(&self) -> bool {
+        0 == self.widget.text_length()
+    }
+
+    pub fn text(&self) -> GString {
+        self.widget.text()
+    }
+}