[libadwaita/wip/exalm/tab-overview: 7/7] demo: Use AdwTabOverview in the tabs demo

[Alexander Mikhaylenko <alexm src gnome org>]

commit b359a64da8ec2d20bd30f12ced99985bb4acf8a4
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Fri Aug 12 03:15:10 2022 +0400

    demo: Use AdwTabOverview in the tabs demo

 demo/pages/tab-view/adw-tab-view-demo-window.c  | 60 +++++++++++++++---
 demo/pages/tab-view/adw-tab-view-demo-window.ui | 83 ++++++++++++++++---------
 2 files changed, 103 insertions(+), 40 deletions(-)
---
diff --git a/demo/pages/tab-view/adw-tab-view-demo-window.c b/demo/pages/tab-view/adw-tab-view-demo-window.c
index 01a54132..9b67a77a 100644
--- a/demo/pages/tab-view/adw-tab-view-demo-window.c
+++ b/demo/pages/tab-view/adw-tab-view-demo-window.c
@@ -9,11 +9,13 @@ struct _AdwTabViewDemoWindow
   AdwWindow parent_instance;
   AdwTabView *view;
   AdwTabBar *tab_bar;
+  AdwTabOverview *tab_overview;
 
   GActionMap *tab_action_group;
 
   AdwTabPage *menu_page;
   gboolean narrow;
+  gboolean in_dispose;
 };
 
 G_DEFINE_TYPE (AdwTabViewDemoWindow, adw_tab_view_demo_window, ADW_TYPE_WINDOW)
@@ -74,16 +76,15 @@ add_page (AdwTabViewDemoWindow *self,
                           G_BINDING_SYNC_CREATE);
 
   adw_tab_page_set_indicator_activatable (page, TRUE);
+  adw_tab_page_set_thumbnail_xalign (page, 0.5);
+  adw_tab_page_set_thumbnail_yalign (page, 0.5);
 
   return page;
 }
 
-static void
-tab_new (GSimpleAction *action,
-         GVariant      *parameter,
-         gpointer       user_data)
+static AdwTabPage *
+create_tab_cb (AdwTabViewDemoWindow *self)
 {
-  AdwTabViewDemoWindow *self = ADW_TAB_VIEW_DEMO_WINDOW (user_data);
   char *title;
   AdwTabPage *page;
   AdwTabViewDemoPage *content;
@@ -94,13 +95,25 @@ tab_new (GSimpleAction *action,
   content = adw_tab_view_demo_page_new (title);
   page = add_page (self, NULL, content);
 
-  adw_tab_view_set_selected_page (self->view, page);
-
-  gtk_widget_grab_focus (GTK_WIDGET (content));
-
   next_page++;
 
   g_free (title);
+
+  return page;
+}
+
+static void
+tab_new (GSimpleAction *action,
+         GVariant      *parameter,
+         gpointer       user_data)
+{
+  AdwTabViewDemoWindow *self = ADW_TAB_VIEW_DEMO_WINDOW (user_data);
+  AdwTabPage *page = create_tab_cb (self);
+  GtkWidget *content = adw_tab_page_get_child (page);
+
+  adw_tab_view_set_selected_page (self->view, page);
+
+  gtk_widget_grab_focus (content);
 }
 
 static AdwTabPage *
@@ -372,7 +385,11 @@ static void
 page_detached_cb (AdwTabViewDemoWindow *self,
                   AdwTabPage           *page)
 {
-  if (!adw_tab_view_get_n_pages (self->view))
+  if (self->in_dispose)
+    return;
+
+  if (!adw_tab_view_get_n_pages (self->view) &&
+      !adw_tab_overview_get_open (self->tab_overview))
     gtk_window_close (GTK_WINDOW (self));
 }
 
@@ -493,6 +510,8 @@ adw_tab_view_demo_window_dispose (GObject *object)
 {
   AdwTabViewDemoWindow *self = ADW_TAB_VIEW_DEMO_WINDOW (object);
 
+  self->in_dispose = TRUE;
+
   g_clear_object (&self->tab_action_group);
 
   G_OBJECT_CLASS (adw_tab_view_demo_window_parent_class)->dispose (object);
@@ -536,8 +555,10 @@ adw_tab_view_demo_window_class_init (AdwTabViewDemoWindowClass *klass)
   gtk_widget_class_set_template_from_resource (widget_class, 
"/org/gnome/Adwaita1/Demo/ui/pages/tab-view/adw-tab-view-demo-window.ui");
   gtk_widget_class_bind_template_child (widget_class, AdwTabViewDemoWindow, view);
   gtk_widget_class_bind_template_child (widget_class, AdwTabViewDemoWindow, tab_bar);
+  gtk_widget_class_bind_template_child (widget_class, AdwTabViewDemoWindow, tab_overview);
   gtk_widget_class_bind_template_callback (widget_class, page_detached_cb);
   gtk_widget_class_bind_template_callback (widget_class, setup_menu_cb);
+  gtk_widget_class_bind_template_callback (widget_class, create_tab_cb);
   gtk_widget_class_bind_template_callback (widget_class, create_window_cb);
   gtk_widget_class_bind_template_callback (widget_class, indicator_activated_cb);
   gtk_widget_class_bind_template_callback (widget_class, extra_drag_drop_cb);
@@ -551,6 +572,8 @@ static void
 adw_tab_view_demo_window_init (AdwTabViewDemoWindow *self)
 {
   GActionMap *action_map;
+  GdkDisplay *display;
+  AdwStyleManager *style_manager;
 
   gtk_widget_init_template (GTK_WIDGET (self));
 
@@ -576,6 +599,21 @@ adw_tab_view_demo_window_init (AdwTabViewDemoWindow *self)
   adw_tab_bar_setup_extra_drop_target (self->tab_bar,
                                        GDK_ACTION_COPY,
                                        (GType[1]) { G_TYPE_STRING }, 1);
+  adw_tab_overview_setup_extra_drop_target (self->tab_overview,
+                                            GDK_ACTION_COPY,
+                                            (GType[1]) { G_TYPE_STRING }, 1);
+
+  display = gtk_widget_get_display (GTK_WIDGET (self));
+  style_manager = adw_style_manager_get_for_display (display);
+
+  g_signal_connect_object (style_manager, "notify::dark",
+                           G_CALLBACK (adw_tab_view_invalidate_thumbnails),
+                           self->view,
+                           G_CONNECT_SWAPPED);
+  g_signal_connect_object (style_manager, "notify::high-contrast",
+                           G_CALLBACK (adw_tab_view_invalidate_thumbnails),
+                           self->view,
+                           G_CONNECT_SWAPPED);
 }
 
 AdwTabViewDemoWindow *
@@ -590,4 +628,6 @@ adw_tab_view_demo_window_prepopulate (AdwTabViewDemoWindow *self)
   tab_new (NULL, NULL, self);
   tab_new (NULL, NULL, self);
   tab_new (NULL, NULL, self);
+
+  adw_tab_view_invalidate_thumbnails (self->view);
 }
diff --git a/demo/pages/tab-view/adw-tab-view-demo-window.ui b/demo/pages/tab-view/adw-tab-view-demo-window.ui
index a7425e57..11784b0f 100644
--- a/demo/pages/tab-view/adw-tab-view-demo-window.ui
+++ b/demo/pages/tab-view/adw-tab-view-demo-window.ui
@@ -8,42 +8,65 @@
     <property name="default-height">600</property>
     <property name="width-request">360</property>
     <property name="content">
-      <object class="GtkBox">
-        <property name="orientation">vertical</property>
-        <child>
-          <object class="GtkHeaderBar">
-            <child type="start">
-              <object class="GtkButton">
-                <property name="action-name">win.window-new</property>
-                <property name="icon-name">window-new-symbolic</property>
+      <object class="AdwTabOverview" id="tab_overview">
+        <property name="view">view</property>
+        <property name="enable-new-tab">True</property>
+        <signal name="extra-drag-drop" handler="extra_drag_drop_cb" swapped="true"/>
+        <signal name="create-tab" handler="create_tab_cb" swapped="true"/>
+        <property name="child">
+          <object class="GtkBox">
+            <property name="orientation">vertical</property>
+            <child>
+              <object class="GtkHeaderBar">
+                <child type="start">
+                  <object class="GtkButton">
+                    <property name="action-name">win.window-new</property>
+                    <property name="icon-name">window-new-symbolic</property>
+                  </object>
+                </child>
+                <child type="end">
+                  <object class="AdwTabButton">
+                    <property name="visible" bind-source="AdwTabViewDemoWindow" bind-property="narrow" 
bind-flags="sync-create"/>
+                    <property name="view">view</property>
+                    <property name="action-name">overview.open</property>
+                  </object>
+                </child>
+                <child type="end">
+                  <object class="GtkButton">
+                    <property name="visible" bind-source="AdwTabViewDemoWindow" bind-property="narrow" 
bind-flags="invert-boolean"/>
+                    <property name="icon-name">view-grid-symbolic</property>
+                    <property name="tooltip-text" translatable="yes">View Open Tabs</property>
+                    <property name="action-name">overview.open</property>
+                  </object>
+                </child>
+                <child type="end">
+                  <object class="GtkButton">
+                    <property name="visible" bind-source="AdwTabViewDemoWindow" bind-property="narrow" 
bind-flags="invert-boolean"/>
+                    <property name="action-name">win.tab-new</property>
+                    <property name="icon-name">tab-new-symbolic</property>
+                  </object>
+                </child>
               </object>
             </child>
-            <child type="end">
-              <object class="GtkButton">
+            <child>
+              <object class="AdwTabBar" id="tab_bar">
                 <property name="visible" bind-source="AdwTabViewDemoWindow" bind-property="narrow" 
bind-flags="invert-boolean"/>
-                <property name="action-name">win.tab-new</property>
-                <property name="icon-name">tab-new-symbolic</property>
+                <property name="view">view</property>
+                <signal name="extra-drag-drop" handler="extra_drag_drop_cb" swapped="true"/>
+              </object>
+            </child>
+            <child>
+              <object class="AdwTabView" id="view">
+                <property name="vexpand">True</property>
+                <property name="menu-model">tab_menu</property>
+                <signal name="page-detached" handler="page_detached_cb" swapped="true"/>
+                <signal name="setup-menu" handler="setup_menu_cb" swapped="true"/>
+                <signal name="create-window" handler="create_window_cb" swapped="true"/>
+                <signal name="indicator-activated" handler="indicator_activated_cb" swapped="true"/>
               </object>
             </child>
           </object>
-        </child>
-        <child>
-          <object class="AdwTabBar" id="tab_bar">
-            <property name="visible" bind-source="AdwTabViewDemoWindow" bind-property="narrow" 
bind-flags="invert-boolean"/>
-            <property name="view">view</property>
-            <signal name="extra-drag-drop" handler="extra_drag_drop_cb" swapped="true"/>
-          </object>
-        </child>
-        <child>
-          <object class="AdwTabView" id="view">
-            <property name="vexpand">True</property>
-            <property name="menu-model">tab_menu</property>
-            <signal name="page-detached" handler="page_detached_cb" swapped="true"/>
-            <signal name="setup-menu" handler="setup_menu_cb" swapped="true"/>
-            <signal name="create-window" handler="create_window_cb" swapped="true"/>
-            <signal name="indicator-activated" handler="indicator_activated_cb" swapped="true"/>
-          </object>
-        </child>
+        </property>
       </object>
     </property>
   </template>