Fix Back mouse button

src/Application.vala

@@ -55,15 +55,14 @@ namespace Tootle {
             window_dummy = new Window ();
             add_window (window_dummy);
 
-            this.set_accels_for_action ("app.compose-toot", {"<Ctrl>T"});
-            this.set_accels_for_action ("app.back", {"<Alt>BackSpace", "<Alt>Left"});
-            this.set_accels_for_action ("app.refresh", {"<Ctrl>R", "F5"});
-            this.set_accels_for_action ("app.switch-timeline(0)", {"<Alt>1"});
-            this.set_accels_for_action ("app.switch-timeline(1)", {"<Alt>2"});
-            this.set_accels_for_action ("app.switch-timeline(2)", {"<Alt>3"});
-            this.set_accels_for_action ("app.switch-timeline(3)", {"<Alt>4"});
-
-            this.add_action_entries (app_entries, this);
+            set_accels_for_action ("app.compose-toot", {"<Ctrl>T"});
+            set_accels_for_action ("app.back", {"<Alt>BackSpace", "<Alt>Left"});
+            set_accels_for_action ("app.refresh", {"<Ctrl>R", "F5"});
+            set_accels_for_action ("app.switch-timeline(0)", {"<Alt>1"});
+            set_accels_for_action ("app.switch-timeline(1)", {"<Alt>2"});
+            set_accels_for_action ("app.switch-timeline(2)", {"<Alt>3"});
+            set_accels_for_action ("app.switch-timeline(3)", {"<Alt>4"});
+            add_action_entries (app_entries, this);
         }
         
         protected override void activate () {

src/MainWindow.vala

@@ -102,10 +102,10 @@ public class Tootle.MainWindow: Gtk.Window {
         network.started.connect (() => spinner.show ());
         network.finished.connect (() => spinner.hide ());
         accounts.updated (accounts.saved_accounts);
-        button_release_event.connect ((event) => {
-            // On back mouse button pressed
+        button_press_event.connect ((event) => {
             if (event.button == 8) {
                 back ();
+                return true;
             }
             return false;
         });
@@ -138,6 +138,9 @@ public class Tootle.MainWindow: Gtk.Window {
     
     public void back () {
         var i = get_visible_id ();
+        if (i == 0)
+            return;
+        
         var child = primary_stack.get_child_by_name (i.to_string ());
         primary_stack.set_visible_child_name ((i-1).to_string ());
         child.destroy ();

src/Widgets/AttachmentWidget.vala

@@ -68,7 +68,7 @@ public class Tootle.AttachmentWidget : Gtk.EventBox {
                 break;
         }
         show ();
-        button_press_event.connect(on_clicked);
+        button_press_event.connect (on_clicked);
     }
     
     public AttachmentWidget.upload (string uri) {
@@ -106,6 +106,9 @@ public class Tootle.AttachmentWidget : Gtk.EventBox {
     }
     
     private bool on_clicked (EventButton ev){
+        if (ev.button == 8)
+            return false;
+    
         if (ev.button == 3)
             return open_menu (ev.button, ev.time);
         

src/Widgets/StatusWidget.vala

@@ -110,7 +110,7 @@ public class Tootle.StatusWidget : Gtk.EventBox {
         grid.attach (counters, 2, 5, 1, 1);
         show_all ();
     
-        this.button_press_event.connect (on_clicked);
+        button_press_event.connect (on_clicked);
     }
 
     public StatusWidget (Status status) {
@@ -245,6 +245,9 @@ public class Tootle.StatusWidget : Gtk.EventBox {
     }
     
     public bool open (EventButton ev) {
+        if (ev.button == 8)
+            return false;
+    
         var formal = status.get_formal ();
         var view = new StatusView (formal);
         window.open_view (view);
@@ -252,6 +255,9 @@ public class Tootle.StatusWidget : Gtk.EventBox {
     }
     
     private bool on_clicked (EventButton ev) {
+        if (ev.button == 8)
+            return false;
+    
         if (ev.button == 3)
             return open_menu (ev.button, ev.time);
         else