[gnome-taquin/arnaudb/wip/gtk4: 32/43] GtkRevealer is not subclassable anymore.

[Arnaud B. <arnaudb src gnome org>]

commit b0113d413f30a673e96224eb4b298f3c69402a48
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Sat Apr 18 16:49:20 2020 +0200

    GtkRevealer is not subclassable anymore.

 data/ui/game-actionbar-placeholder.ui |  8 +++--
 data/ui/game-actionbar.ui             | 16 ++++++----
 data/ui/notifications-revealer.ui     | 60 +++++++++++++++++++----------------
 src/game-actionbar.vala               | 26 +++++++++++----
 src/notifications-revealer.vala       | 10 ++++--
 5 files changed, 75 insertions(+), 45 deletions(-)
---
diff --git a/data/ui/game-actionbar-placeholder.ui b/data/ui/game-actionbar-placeholder.ui
index 9bb622d..65a90e0 100644
--- a/data/ui/game-actionbar-placeholder.ui
+++ b/data/ui/game-actionbar-placeholder.ui
@@ -19,9 +19,13 @@
 -->
 <interface>
   <requires lib="gtk+" version="3.96"/>
-  <template class="GameActionBarPlaceHolder" parent="GtkRevealer">
+  <template class="GameActionBarPlaceHolder" parent="GtkWidget">
     <child>
-      <object class="GtkDrawingArea" id="placeholder_child"/>
+      <object class="GtkRevealer" id="revealer">
+        <child>
+          <object class="GtkDrawingArea" id="placeholder_child"/>
+        </child>
+      </object>
     </child>
   </template>
 </interface>
diff --git a/data/ui/game-actionbar.ui b/data/ui/game-actionbar.ui
index 484b546..282bc15 100644
--- a/data/ui/game-actionbar.ui
+++ b/data/ui/game-actionbar.ui
@@ -19,14 +19,18 @@
 -->
 <interface>
   <requires lib="gtk+" version="3.96"/>
-  <template class="GameActionBar" parent="GtkRevealer">
+  <template class="GameActionBar" parent="GtkWidget">
     <child>
-      <object class="GtkActionBar" id="action_bar">
+      <object class="GtkRevealer" id="revealer">
         <child>
-          <object class="GtkLabel" id="game_label">
-            <style>
-              <class name="game-name-label"/>
-            </style>
+          <object class="GtkActionBar" id="action_bar">
+            <child>
+              <object class="GtkLabel" id="game_label">
+                <style>
+                  <class name="game-name-label"/>
+                </style>
+              </object>
+            </child>
           </object>
         </child>
       </object>
diff --git a/data/ui/notifications-revealer.ui b/data/ui/notifications-revealer.ui
index fede461..a8576ef 100644
--- a/data/ui/notifications-revealer.ui
+++ b/data/ui/notifications-revealer.ui
@@ -17,37 +17,41 @@
 -->
 <interface>
   <requires lib="gtk+" version="3.96"/>
-  <template class="NotificationsRevealer" parent="GtkRevealer">
-    <property name="halign">center</property>
-    <property name="valign">start</property>
+  <template class="NotificationsRevealer" parent="GtkWidget">
     <child>
-      <object class="GtkFrame">
-        <style>
-          <class name="app-notification"/>
-        </style>
+      <object class="GtkRevealer" id="revealer">
+        <property name="halign">center</property>
+        <property name="valign">start</property>
         <child>
-          <object class="GtkGrid">
-            <property name="column-spacing">6</property>
+          <object class="GtkFrame">
+            <style>
+              <class name="app-notification"/>
+            </style>
             <child>
-              <object class="GtkLabel" id="notification_label">
-                <property name="hexpand">True</property>
-                <property name="xalign">0</property>
-                <property name="wrap">True</property>
-              </object>
-            </child>
-            <child>
-              <object class="GtkSeparator"/>
-            </child>
-            <child>
-              <object class="GtkButton">
-                <property name="valign">center</property>
-                <property name="focus-on-click">False</property>
-                <property name="relief">none</property>
-                <property name="action-name">notification.hide</property>
-                <property name="icon-name">window-close-symbolic</property>
-                <style>
-                  <class name="image-button"/>
-                </style>
+              <object class="GtkGrid">
+                <property name="column-spacing">6</property>
+                <child>
+                  <object class="GtkLabel" id="notification_label">
+                    <property name="hexpand">True</property>
+                    <property name="xalign">0</property>
+                    <property name="wrap">True</property>
+                  </object>
+                </child>
+                <child>
+                  <object class="GtkSeparator"/>
+                </child>
+                <child>
+                  <object class="GtkButton">
+                    <property name="valign">center</property>
+                    <property name="focus-on-click">False</property>
+                    <property name="relief">none</property>
+                    <property name="action-name">notification.hide</property>
+                    <property name="icon-name">window-close-symbolic</property>
+                    <style>
+                      <class name="image-button"/>
+                    </style>
+                  </object>
+                </child>
               </object>
             </child>
           </object>
diff --git a/src/game-actionbar.vala b/src/game-actionbar.vala
index e75907e..edf8290 100644
--- a/src/game-actionbar.vala
+++ b/src/game-actionbar.vala
@@ -21,18 +21,22 @@
 using Gtk;
 
 [GtkTemplate (ui = "/org/gnome/Taquin/ui/game-actionbar.ui")]
-private class GameActionBar : Revealer, AdaptativeWidget
+private class GameActionBar : Widget, AdaptativeWidget
 {
     [CCode (notify = false)] public bool show_actionbar  { private get; protected construct set; default = 
false; }
     [CCode (notify = false)] public bool window_has_name { private get; protected construct set; default = 
false; }
     [CCode (notify = false)] public string  window_name  { private get; protected construct set; default = 
""   ; }
     [CCode (notify = false)] public Widget? game_widget  { private get; protected construct    ; default = 
null ; }
 
+    [GtkChild] private Revealer revealer;
     [GtkChild] private ActionBar action_bar;
     [GtkChild] private Label game_label;
 
     construct
     {
+        BinLayout layout = new BinLayout ();
+        set_layout_manager (layout);
+
         if (game_widget != null)
             action_bar.pack_end ((!) game_widget);
 
@@ -69,7 +73,7 @@ private class GameActionBar : Revealer, AdaptativeWidget
 
     private void update_visibility ()
     {
-        set_reveal_child (is_extra_thin && show_actionbar);
+        revealer.set_reveal_child (is_extra_thin && show_actionbar);
     }
 
     /*\
@@ -91,23 +95,33 @@ private class GameActionBar : Revealer, AdaptativeWidget
 }
 
 [GtkTemplate (ui = "/org/gnome/Taquin/ui/game-actionbar-placeholder.ui")]
-private class GameActionBarPlaceHolder : Revealer, AdaptativeWidget
+private class GameActionBarPlaceHolder : Widget, AdaptativeWidget
 {
+    [GtkChild] private Revealer revealer;
     [GtkChild] private Widget placeholder_child;
     private GameActionBar actionbar;
 
+    construct
+    {
+        BinLayout layout = new BinLayout ();
+        set_layout_manager (layout);
+    }
+
     internal GameActionBarPlaceHolder (GameActionBar _actionbar)
     {
         actionbar = _actionbar;
         actionbar.size_allocate.connect (set_height);
         set_height ();
-        set_reveal_child (true);    // seems like setting it in the UI file does not work, while it is OK 
for GameActionBar...
+        revealer.set_reveal_child (true);    // seems like setting it in the UI file does not work, while it 
is OK for GameActionBar...
     }
 
     private void set_height ()
     {
         Requisition natural_size;
-        Widget? widget = actionbar.get_child ();
+        Widget? widget = actionbar.get_first_child ();
+        if (widget == null || !(widget is Revealer))
+            assert_not_reached ();
+        widget = ((Revealer) (!) widget).get_child ();
         if (widget == null)
             return;
         ((!) widget).get_preferred_size (/* minimum size */ null, out natural_size);
@@ -125,6 +139,6 @@ private class GameActionBarPlaceHolder : Revealer, AdaptativeWidget
         if (_is_extra_thin == is_extra_thin)
             return;
         is_extra_thin = _is_extra_thin;
-        set_reveal_child (is_extra_thin);
+        revealer.set_reveal_child (is_extra_thin);
     }
 }
diff --git a/src/notifications-revealer.vala b/src/notifications-revealer.vala
index 8831e3e..ff7e1db 100644
--- a/src/notifications-revealer.vala
+++ b/src/notifications-revealer.vala
@@ -18,12 +18,16 @@
 using Gtk;
 
 [GtkTemplate (ui = "/org/gnome/Taquin/ui/notifications-revealer.ui")]
-private class NotificationsRevealer : Revealer, AdaptativeWidget
+private class NotificationsRevealer : Widget, AdaptativeWidget
 {
+    [GtkChild] private Revealer revealer;
     [GtkChild] private Label notification_label;
 
     construct
     {
+        BinLayout layout = new BinLayout ();
+        set_layout_manager (layout);
+
         install_action_entries ();
     }
 
@@ -34,7 +38,7 @@ private class NotificationsRevealer : Revealer, AdaptativeWidget
     internal void show_notification (string notification)
     {
         notification_label.set_text (notification);
-        set_reveal_child (true);
+        revealer.set_reveal_child (true);
     }
 
     private bool is_thin = false;
@@ -75,6 +79,6 @@ private class NotificationsRevealer : Revealer, AdaptativeWidget
 
     internal void hide_notification (/* SimpleAction action, Variant? variant */)
     {
-        set_reveal_child (false);
+        revealer.set_reveal_child (false);
     }
 }