[gnome-games] ui: Add DisplayBox

[Adrien Plazas <aplazas src gnome org>]

commit 2387adc2f5f1f5407cd5c79ecb20ed27cf94c3d2
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Sun Jul 24 12:55:50 2016 +0200

    ui: Add DisplayBox
    
    This will be used in a subsequent commit to replace ContentBox.
    
    This is needed to better distribute the concerns of the different parts
    of the UI.

 data/org.gnome.Games.gresource.xml |    1 +
 data/ui/display-box.ui             |    7 +++++++
 src/Makefile.am                    |    1 +
 src/ui/display-box.vala            |   33 +++++++++++++++++++++++++++++++++
 4 files changed, 42 insertions(+), 0 deletions(-)
---
diff --git a/data/org.gnome.Games.gresource.xml b/data/org.gnome.Games.gresource.xml
index d48423e..62bd5d1 100644
--- a/data/org.gnome.Games.gresource.xml
+++ b/data/org.gnome.Games.gresource.xml
@@ -9,6 +9,7 @@
     <file preprocess="xml-stripblanks">ui/collection-header-bar.ui</file>
     <file preprocess="xml-stripblanks">ui/collection-icon-view.ui</file>
     <file preprocess="xml-stripblanks">ui/content-box.ui</file>
+    <file preprocess="xml-stripblanks">ui/display-box.ui</file>
     <file preprocess="xml-stripblanks">ui/display-header-bar.ui</file>
     <file preprocess="xml-stripblanks">ui/dummy-display.ui</file>
     <file preprocess="xml-stripblanks">ui/empty-collection.ui</file>
diff --git a/data/ui/display-box.ui b/data/ui/display-box.ui
new file mode 100644
index 0000000..41a0754
--- /dev/null
+++ b/data/ui/display-box.ui
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <requires lib="gtk+" version="3.16"/>
+  <template class="GamesDisplayBox" parent="GtkEventBox">
+    <property name="visible">True</property>
+  </template>
+</interface>
diff --git a/src/Makefile.am b/src/Makefile.am
index 8c614eb..9d0c1d7 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -88,6 +88,7 @@ gnome_games_SOURCES = \
        ui/collection-icon-view.vala \
        ui/collection-header-bar.vala \
        ui/content-box.vala \
+       ui/display-box.vala \
        ui/display-header-bar.vala \
        ui/dummy-display.vala \
        ui/empty-collection.vala \
diff --git a/src/ui/display-box.vala b/src/ui/display-box.vala
new file mode 100644
index 0000000..83eaaee
--- /dev/null
+++ b/src/ui/display-box.vala
@@ -0,0 +1,33 @@
+// This file is part of GNOME Games. License: GPLv3
+
+[GtkTemplate (ui = "/org/gnome/Games/ui/display-box.ui")]
+private class Games.DisplayBox : Gtk.EventBox {
+       public signal void game_activated (Game game);
+
+       private Runner _runner;
+       public Runner runner {
+               set {
+                       _runner = value;
+                       remove_display ();
+
+                       if (runner == null)
+                               return;
+
+                       var display = runner.get_display ();
+                       set_display (display);
+               }
+               get { return _runner; }
+       }
+
+       private void set_display (Gtk.Widget display) {
+               remove_display ();
+               add (display);
+               display.visible = true;
+       }
+
+       private void remove_display () {
+               var child = get_child ();
+               if (child != null)
+                       remove (get_child ());
+       }
+}