[gnome-boxes/port-assistant-widgets-to-hdy: 1/8] preferences, style: Round our in-house Toast widget

[Felipe Borges <felipeborges src gnome org>]

commit db0283857efd439e046639c36c48b99b67af54fd
Author: Felipe Borges <felipeborges gnome org>
Date:   Thu Dec 9 10:59:15 2021 +0100

    preferences, style: Round our in-house Toast widget
    
    Hopefully we will drop this when we port to libadwaita.

 data/gtk-style.css                       | 5 +++++
 data/ui/preferences/preferences-toast.ui | 3 +++
 2 files changed, 8 insertions(+)
---
diff --git a/data/gtk-style.css b/data/gtk-style.css
index e3d0cc85..a9f24ae4 100644
--- a/data/gtk-style.css
+++ b/data/gtk-style.css
@@ -107,6 +107,11 @@ separator {
 /* Adds a border to the ISOs lists top undershoot */
 .boxes-menu-scrolled.undershoot.top { border-top: 1px solid @borders; }
 
+/* This is to be removed once we port to AdwToast */
+.boxes-toast {
+     border-radius: 2em;
+}
+
 /* Screenshot flash */
 @keyframes flash_animation {
     50% {
diff --git a/data/ui/preferences/preferences-toast.ui b/data/ui/preferences/preferences-toast.ui
index 75306c09..911f7253 100644
--- a/data/ui/preferences/preferences-toast.ui
+++ b/data/ui/preferences/preferences-toast.ui
@@ -6,6 +6,7 @@
     <property name="valign">end</property>
     <style>
       <class name="app-notification"/>
+      <class name="boxes-toast"/>
     </style>
 
     <child>
@@ -15,12 +16,14 @@
         <property name="hexpand">True</property>
         <property name="wrap">True</property>
         <property name="lines">2</property>
+        <property name="margin">5</property>
       </object>
     </child>
 
     <child>
       <object class="GtkButton" id="button">
         <property name="visible">True</property>
+        <property name="valign">center</property>
         <property name="label" translatable="yes">Undo</property>
         <signal name="clicked" handler="on_undo_button_clicked"/>
       </object>