Delay settings (#70)

* Test with Houston CI

* update with Blake's recommendation

* Add settings for delay

Author: danirabbit

data/io.elementary.camera.gschema.xml

@@ -1,9 +1,20 @@
 <schemalist>
+    <enum id="io.elementary.camera.settings.delay">
+        <value nick="DISABLED" value="0" />
+        <value nick="3_SEC" value="3" />
+        <value nick="5_SEC" value="5" />
+        <value nick="10_SEC" value="10" />
+    </enum>
     <enum id="io.elementary.camera.settings.mode">
         <value nick="photo" value="0" />
         <value nick="video" value="1" />
     </enum>
     <schema path="/io/elementary/camera/settings/" id="io.elementary.camera.settings">
+        <key name="delay" enum="io.elementary.camera.settings.delay">
+            <default>"DISABLED"</default>
+            <summary>The timed delay before taking a photo</summary>
+            <description>The timed delay before taking a photo</description>
+        </key>
         <key name="mode" enum="io.elementary.camera.settings.mode">
             <default>"photo"</default>
             <summary>The mode of the camera, photo or video</summary>

src/Application.vala

@@ -20,8 +20,13 @@
  */
 
 public class Camera.Application : Gtk.Application {
+    public static GLib.Settings settings;
     public MainWindow? main_window = null;
 
+    static construct {
+        settings = new Settings ("io.elementary.camera.settings");
+    }
+
     construct {
         Intl.setlocale (LocaleCategory.ALL, "");
         application_id = "io.elementary.camera";

src/Widgets/TimerButton.vala

@@ -47,14 +47,17 @@ public class Camera.Widgets.TimerButton : Gtk.Button {
         }
     }
 
-    public Delay delay = Delay.DISABLED;
+    public Delay delay;
 
     construct {
+        delay = (Delay) Camera.Application.settings.get_enum ("delay");
+
         var timer_image = new Gtk.Image.from_icon_name ("timer-symbolic", Gtk.IconSize.SMALL_TOOLBAR);
         var timer_label = new Gtk.Label (delay.to_string ());
 
         this.clicked.connect (() => {
             delay = delay.next ();
+            Camera.Application.settings.set_enum ("delay", delay);
             timer_label.label = delay.to_string ();
         });