modified button layout; monospace font textview; spinner (WIP)

bin/simple-apt-update

@@ -78,6 +78,12 @@ class UpdateWindow(Gtk.ApplicationWindow):
 
     def run(self, args, ignore_stderr=False, output_msg=None,
             empty_msg=None, env={}):
+        self.clear()
+        self.lock()
+        self.spinner.start()
+        self.prepend_mesg(
+            "INFO",
+            "Running command \"%s\" ..." % " ".join(args))
         p = subprocess.Popen(
             args, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=False,
             env=dict(os.environ, **env))
@@ -113,6 +119,9 @@ class UpdateWindow(Gtk.ApplicationWindow):
                     done = True
                     break
 
+        self.spinner.stop()
+        self.unlock()
+
         if error:
             return False
         else:
@@ -134,28 +143,36 @@ class UpdateWindow(Gtk.ApplicationWindow):
         self.upgrade_button.set_sensitive(True)
         self.list_button.set_sensitive(True)
 
-    def on_upgrade(self, *args):
-        self.clear()
+    def upgrade(self):
+        args = ['/usr/bin/apt-get', '-yqq', 'full-upgrade']
+        env = {'DEBIAN_FRONTEND': 'noninteractive'}
         self.run(
-            ['/usr/bin/apt-get', '-y', 'full-upgrade'],
-            env={'DEBIAN_FRONTEND': 'noninteractive'})
-        self.append_mesg("INFO", "Upgrade done.")
+            args,
+            env=env,
+            empty_msg="No package upgrades were performed.")
+
+    def on_upgrade(self, *args):
+        self.upgrade()
+
+    def update(self):
+        args = ['/usr/bin/apt-get', '-y', 'update']
+        env = {'DEBIAN_FRONTEND': 'noninteractive'}
+        self.run(args, env=env)
 
     def on_update(self, *args):
-        self.clear()
-        self.run(
-            ['/usr/bin/apt-get', '-y', 'update'],
-            env={'DEBIAN_FRONTEND': 'noninteractive'})
-        self.append_mesg("INFO", "The package cache was updated.")
+        self.update()
 
-    def on_list(self, *args):
-        self.clear()
+    def list(self):
+        args = ['/usr/bin/apt', '-qq', 'list', '--upgradable']
         self.run(
-            ['/usr/bin/apt', '-qq', 'list', '--upgradable'],
+            args,
             ignore_stderr=True,
             output_msg="Found the following package upgrades:",
             empty_msg="Currently there are no available package upgrades.")
 
+    def on_list(self, *args):
+        self.list()
+
     def on_ctrl_w(self, *args):
         self.app.quit()
 
@@ -180,20 +197,38 @@ class UpdateWindow(Gtk.ApplicationWindow):
         hbox = Gtk.Box(spacing=6, orientation=Gtk.Orientation.VERTICAL)
         self.add(hbox)
 
-        self.update_button = Gtk.Button.new_with_label(
-            "Update the Package Cache")
-        self.update_button.connect("clicked", self.on_update)
-        hbox.pack_start(self.update_button, True, True, 0)
+        grid = Gtk.Grid()
+        grid.set_row_spacing(5)
+        grid.set_column_spacing(5)
+        hbox.add(grid)
 
-        self.upgrade_button = Gtk.Button.new_with_label(
-            "Apply all Package Upgrades")
-        self.upgrade_button.connect("clicked", self.on_upgrade)
-        hbox.pack_start(self.upgrade_button, True, True, 0)
+        self.update_button = Gtk.Button.new_with_label(
+            "Update Cache")
+        self.update_button.connect("clicked", self.on_update)
+        grid.attach(self.update_button, 0, 0, 1, 1)
 
         self.list_button = Gtk.Button.new_with_label(
-            "List available Package Updates")
+            "List Upgrades")
         self.list_button.connect("clicked", self.on_list)
-        hbox.pack_start(self.list_button, True, True, 0)
+        grid.attach(self.list_button, 1, 0, 1, 1)
+
+        self.upgrade_button = Gtk.Button.new_from_icon_name(
+            "gtk-apply", Gtk.IconSize.BUTTON)
+        self.upgrade_button.set_tooltip_text(
+            "Download and install all available upgrades")
+        self.upgrade_button.connect("clicked", self.on_upgrade)
+        grid.attach(self.upgrade_button, 2, 0, 1, 1)
+
+        self.spinner = Gtk.Spinner()
+        self.spinner.set_hexpand(True)
+        grid.attach(self.spinner, 4, 0, 1, 1)
+
+        self.quit_button = Gtk.Button.new_from_icon_name(
+            "gtk-cancel", Gtk.IconSize.BUTTON)
+        self.quit_button.set_tooltip_text("Exit the program")
+        self.quit_button.set_halign(Gtk.Align.END)
+        self.quit_button.connect("clicked", self.on_ctrl_w)
+        grid.attach(self.quit_button, 4, 0, 1, 1)
 
         self.scrolledwindow = Gtk.ScrolledWindow()
         self.scrolledwindow.set_hexpand(True)
@@ -204,6 +239,7 @@ class UpdateWindow(Gtk.ApplicationWindow):
 
         text_view = Gtk.TextView(buffer=self.buffer)
         text_view.set_editable(False)
+        text_view.set_monospace(True)
         text_view.set_cursor_visible(False)
 
         self.scrolledwindow.add(text_view)
@@ -214,8 +250,8 @@ def on_activate(app):
     win = UpdateWindow(app)
     win.present()
     win.show_all()
-    win.on_update()
-    win.on_list()
+    win.update()
+    win.list()
 
 
 app = Gtk.Application(application_id='org.linuxfoo.SimpleAptUpdate')