[dconf-editor] Make window notification work on small screens.

[Arnaud B. <arnaudb src gnome org>]

commit 8ddd09ffd402817a4962055b830b077fedb1c555
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Thu Oct 18 18:51:05 2018 +0200

    Make window notification work on small screens.

 editor/dconf-editor.css  | 9 +++++++++
 editor/dconf-editor.ui   | 1 +
 editor/dconf-window.vala | 8 ++++++++
 3 files changed, 18 insertions(+)
---
diff --git a/editor/dconf-editor.css b/editor/dconf-editor.css
index 43b0068..9b68c82 100644
--- a/editor/dconf-editor.css
+++ b/editor/dconf-editor.css
@@ -373,6 +373,15 @@ window:not(.extra-small-window)    .keys-list:dir(rtl) > row > .key    > grid >
   min-width:0;
 }
 
+/*\
+* * app notification
+\*/
+
+.extra-small-window .app-notification,
+      .small-window .app-notification {
+  border-radius:0;
+}
+
 /*\
 * * text formating
 \*/
diff --git a/editor/dconf-editor.ui b/editor/dconf-editor.ui
index 02dfae3..7821b4f 100644
--- a/editor/dconf-editor.ui
+++ b/editor/dconf-editor.ui
@@ -60,6 +60,7 @@
                     <child>
                       <object class="GtkLabel" id="notification_label">
                         <property name="visible">True</property>
+                        <property name="wrap">True</property>
                       </object>
                     </child>
                     <child>
diff --git a/editor/dconf-window.vala b/editor/dconf-window.vala
index d8f95ca..9c4d799 100644
--- a/editor/dconf-window.vala
+++ b/editor/dconf-window.vala
@@ -434,6 +434,8 @@ private class DConfWindow : ApplicationWindow
             }
             context.remove_class ("small-window");
             context.add_class ("large-window");
+            notification_revealer.hexpand = false;
+            notification_revealer.halign = Align.CENTER;
         }
         else if (allocation.width < 590)
         {
@@ -446,6 +448,8 @@ private class DConfWindow : ApplicationWindow
                 headerbar.extra_small_window = true;
                 browser_view.extra_small_window = true;
             }
+            notification_revealer.hexpand = true;
+            notification_revealer.halign = Align.FILL;
         }
         else if (allocation.width < 787)
         {
@@ -458,6 +462,8 @@ private class DConfWindow : ApplicationWindow
                 browser_view.extra_small_window = false;
             }
             context.add_class ("small-window");
+            notification_revealer.hexpand = true;
+            notification_revealer.halign = Align.FILL;
         }
         else
         {
@@ -470,6 +476,8 @@ private class DConfWindow : ApplicationWindow
                 headerbar.extra_small_window = false;
                 browser_view.extra_small_window = false;
             }
+            notification_revealer.hexpand = false;
+            notification_revealer.halign = Align.CENTER;
         }
 
         /* save size */