logger: add a popup menu to clear the logs

Add a way to clear the logs.

src/app.rs

@@ -272,6 +272,8 @@ impl GPSApp {
 
         application.add_action(&gio::SimpleAction::new("favorite.remove", None));
 
+        application.add_action(&gio::SimpleAction::new("logger.clear", None));
+
         application.add_action(&gio::SimpleAction::new("graph.check", None));
         application.add_action(&gio::SimpleAction::new("graph.pipeline_details", None));
 

src/ui/gps.ui

@@ -60,6 +60,14 @@
         <attribute name="action">app.favorite.remove</attribute>
       </item>
     </section>
+  </menu>
+    <menu id="logger_menu">
+    <section>
+      <item>
+        <attribute name="label" translatable="yes" comments="logger menu entry clear the logs">_Clear</attribute>
+        <attribute name="action">app.logger.clear</attribute>
+      </item>
+    </section>
   </menu>
   <menu id="node_menu">
     <section>

src/ui/logger.rs

@@ -9,6 +9,7 @@
 use crate::app::GPSApp;
 use crate::ui::treeview;
 use gtk::prelude::*;
+use gtk::{gio, glib};
 
 use gtk::{ListStore, TreeView};
 
@@ -30,6 +31,32 @@ pub fn setup_logger_list(app: &GPSApp) {
         .object("treeview-logger")
         .expect("Couldn't get treeview-logger");
     reset_logger_list(&logger_list);
+
+    let gesture = gtk::GestureClick::new();
+    gesture.set_button(0);
+    let app_weak = app.downgrade();
+    gesture.connect_pressed(
+        glib::clone!(@weak logger_list => move |gesture, _n_press, x, y| {
+            let app = upgrade_weak!(app_weak);
+            if gesture.current_button() == gtk::gdk::BUTTON_SECONDARY {
+                    let pop_menu = app.app_pop_menu_at_position(&logger_list, x, y);
+                    let menu: gio::MenuModel = app
+                    .builder
+                    .object("logger_menu")
+                    .expect("Couldn't get fav_menu model");
+                    pop_menu.set_menu_model(Some(&menu));
+
+                    app.connect_app_menu_action("logger.clear",
+                        move |_,_| {
+                            reset_logger_list(&logger_list);
+                        }
+                    );
+
+                    pop_menu.show();
+            }
+        }),
+    );
+    logger_list.add_controller(&gesture);
 }
 
 pub fn add_to_logger_list(app: &GPSApp, log_entry: &str) {