[gnome-games] collection-header-bar: Use HdyViewSwitcherTitle

[Alexander Mikhaylenko <alexm src gnome org>]

commit ae1d4df5f87f3b56c8713049b0f0defb767f0ab2
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Thu Mar 5 20:31:43 2020 +0500

    collection-header-bar: Use HdyViewSwitcherTitle
    
    Replace manual squeezer+view switcher with the new widget, this should
    simplify the layout a bit.

 data/ui/collection-header-bar.ui  | 22 ++++------------------
 src/ui/collection-header-bar.vala | 17 ++++-------------
 2 files changed, 8 insertions(+), 31 deletions(-)
---
diff --git a/data/ui/collection-header-bar.ui b/data/ui/collection-header-bar.ui
index 4ef36d4f..73faac3a 100644
--- a/data/ui/collection-header-bar.ui
+++ b/data/ui/collection-header-bar.ui
@@ -61,25 +61,11 @@
               </packing>
             </child>
             <child type="title">
-              <object class="HdySqueezer" id="title_squeezer">
+              <object class="HdyViewSwitcherTitle" id="view_switcher_title">
                 <property name="visible">True</property>
-                <property name="transition-type">crossfade</property>
-                <signal name="notify::visible-child" handler="update_adaptive_state"/>
-                <child>
-                  <object class="HdyViewSwitcher" id="view_switcher">
-                    <property name="visible">True</property>
-                    <property name="policy">wide</property>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="label" translatable="yes">Games</property>
-                    <style>
-                      <class name="title"/>
-                    </style>
-                  </object>
-                </child>
+                <property name="title" translatable="yes">Games</property>
+                <property name="view-switcher-enabled" bind-source="GamesCollectionHeaderBar" 
bind-property="is-collection-empty" bind-flags="bidirectional|sync-create|invert-boolean"/>
+                <signal name="notify::title-visible" handler="update_adaptive_state"/>
               </object>
             </child>
             <child>
diff --git a/src/ui/collection-header-bar.vala b/src/ui/collection-header-bar.vala
index 0351b10e..685239a4 100644
--- a/src/ui/collection-header-bar.vala
+++ b/src/ui/collection-header-bar.vala
@@ -13,18 +13,11 @@ private class Games.CollectionHeaderBar : Gtk.Bin {
                        }
 
                        _viewstack = value;
-                       view_switcher.stack = _viewstack;
+                       view_switcher_title.stack = _viewstack;
                }
        }
 
-       private bool _is_collection_empty;
-       public bool is_collection_empty {
-               get { return _is_collection_empty; }
-               set {
-                       _is_collection_empty = value;
-                       title_squeezer.set_child_enabled (view_switcher, !value);
-               }
-       }
+       public bool is_collection_empty { get; set; }
 
        public bool is_folded { get; set; }
        public bool is_showing_bottom_bar { get; set; }
@@ -39,9 +32,7 @@ private class Games.CollectionHeaderBar : Gtk.Bin {
        [GtkChild]
        private Hdy.HeaderBar subview_header_bar;
        [GtkChild]
-       private Hdy.Squeezer title_squeezer;
-       [GtkChild]
-       private Hdy.ViewSwitcher view_switcher;
+       private Hdy.ViewSwitcherTitle view_switcher_title;
 
        private ulong viewstack_child_changed_id;
 
@@ -51,7 +42,7 @@ private class Games.CollectionHeaderBar : Gtk.Bin {
 
        [GtkCallback]
        private void update_adaptive_state () {
-               bool showing_title = title_squeezer.visible_child != view_switcher;
+               bool showing_title = view_switcher_title.title_visible;
                is_showing_bottom_bar = showing_title && !is_collection_empty;
        }