clapper-app: Add auto window resize keyboard shortcut

In addition to middle click, also add "Super+r" keyboard shortcut to perform window resize to fit video action

Author: Rafostar

src/bin/clapper-app/clapper-app-application.c

@@ -700,6 +700,7 @@ clapper_app_application_constructed (GObject *object)
     { "app.preferences", { "<Control>comma", NULL, NULL }},
     { "app.about", { "F1", NULL, NULL }},
     { "win.toggle-fullscreen", { "F11", "f", NULL }},
+    { "win.auto-resize", { "<Super>r", NULL, NULL }},
     { "win.show-help-overlay", { "<Control>question", NULL, NULL }},
     { "window.close", { "<Control>q", "q", NULL }},
   };

src/bin/clapper-app/clapper-app-window.c

@@ -1063,6 +1063,12 @@ toggle_fullscreen (GSimpleAction *action, GVariant *param, gpointer user_data)
   video_toggle_fullscreen_cb (CLAPPER_GTK_VIDEO_CAST (self->video), self);
 }
 
+static void
+auto_resize (GSimpleAction *action, GVariant *param, gpointer user_data)
+{
+  _resize_window (CLAPPER_APP_WINDOW_CAST (user_data));
+}
+
 static void
 show_help_overlay (GSimpleAction *action, GVariant *param, gpointer user_data)
 {
@@ -1217,6 +1223,7 @@ clapper_app_window_constructed (GObject *object)
 
   static const GActionEntry win_entries[] = {
     { "toggle-fullscreen", toggle_fullscreen, NULL, NULL, NULL },
+    { "auto-resize", auto_resize, NULL, NULL, NULL },
     { "show-help-overlay", show_help_overlay, NULL, NULL, NULL },
   };
 

src/bin/clapper-app/ui/clapper-app-help-overlay.ui

@@ -33,6 +33,13 @@
                 <property name="accelerator">F11 f</property>
               </object>
             </child>
+            <child>
+              <object class="GtkShortcutsShortcut">
+                <property name="title" translatable="yes">Auto window resize</property>
+                <property name="subtitle" translatable="yes">Middle click</property>
+                <property name="accelerator">&lt;Super&gt;r</property>
+              </object>
+            </child>
             <child>
               <object class="GtkShortcutsShortcut">
                 <property name="title" translatable="yes">Quit</property>