Favor explicit refference cloning, as suggested by clippy.

hammond-gtk/src/widgets/episode.rs

@@ -1,3 +1,6 @@
+
+#![cfg_attr(feature = "cargo-clippy", allow(clone_on_ref_ptr))]
+
 use open;
 use diesel::prelude::SqliteConnection;
 use hammond_data::dbqueries;
@@ -17,7 +20,7 @@ use gtk::prelude::*;
 // use utils;
 
 fn epidose_widget(
-    connection: Arc<Mutex<SqliteConnection>>,
+    connection: &Arc<Mutex<SqliteConnection>>,
     episode: &mut Episode,
     pd_title: &str,
 ) -> gtk::Box {
@@ -47,7 +50,7 @@ fn epidose_widget(
 
         expander.connect_activate(move |_| {
             let plain_text = strip_html_tags(&d).join(" ");
-            desc_label.set_text(&plain_text.trim())
+            desc_label.set_text(plain_text.trim())
         });
     }
 
@@ -63,7 +66,7 @@ fn epidose_widget(
         });
     }
 
-    let pd_title_cloned = pd_title.clone().to_owned();
+    let pd_title_cloned = pd_title.to_owned();
     let db = connection.clone();
     let ep_clone = episode.clone();
     dl_button.connect_clicked(move |_| {
@@ -87,7 +90,7 @@ fn epidose_widget(
     ep
 }
 
-pub fn episodes_listbox(connection: Arc<Mutex<SqliteConnection>>, pd_title: &str) -> gtk::ListBox {
+pub fn episodes_listbox(connection: &Arc<Mutex<SqliteConnection>>, pd_title: &str) -> gtk::ListBox {
     // TODO: handle unwraps.
     let m = connection.lock().unwrap();
     let pd = dbqueries::load_podcast(&m, pd_title).unwrap();
@@ -96,7 +99,7 @@ pub fn episodes_listbox(connection: Arc<Mutex<SqliteConnection>>, pd_title: &str
 
     let list = gtk::ListBox::new();
     episodes.iter_mut().for_each(|ep| {
-        let w = epidose_widget(connection.clone(), ep, pd_title);
+        let w = epidose_widget(&connection.clone(), ep, pd_title);
         list.add(&w)
     });
 

hammond-gtk/src/widgets/podcast.rs

@@ -10,7 +10,7 @@ use std::sync::{Arc, Mutex};
 use widgets::episode::episodes_listbox;
 
 pub fn podcast_widget(
-    connection: Arc<Mutex<SqliteConnection>>,
+    connection: &Arc<Mutex<SqliteConnection>>,
     title: Option<&str>,
     description: Option<&str>,
     image: Option<Pixbuf>,
@@ -27,7 +27,7 @@ pub fn podcast_widget(
 
     if let Some(t) = title {
         title_label.set_text(t);
-        let listbox = episodes_listbox(connection.clone(), t);
+        let listbox = episodes_listbox(&connection.clone(), t);
         view.add(&listbox);
     }
 
@@ -56,9 +56,9 @@ pub fn create_flowbox_child(title: &str, cover: Option<Pixbuf>) -> gtk::FlowBoxC
     // GDK.TOUCH_MASK
     // https://developer.gnome.org/gdk3/stable/gdk3-Events.html#GDK-TOUCH-MASK:CAPS
     // http://gtk-rs.org/docs/gdk/constant.TOUCH_MASK.html
-    events.add_events(4194304);
+    events.add_events(4_194_304);
 
-    pd_title.set_text(&title);
+    pd_title.set_text(title);
 
     if let Some(img) = cover {
         pd_cover.set_from_pixbuf(&img);