[nautilus/wip/antoniof/flowbox-to-gridview: 13/24] view-icon-item-ui: Don't subclass GtkFlowBoxChild

[António Fernandes <antoniof src gnome org>]

commit 3c4f6a3b680b6883a670740550c0e0726e7f0522
Author: António Fernandes <antoniof gnome org>
Date:   Mon Jan 24 11:14:53 2022 +0000

    view-icon-item-ui: Don't subclass GtkFlowBoxChild
    
    In order to ease the transition to GtkGridView.

 src/nautilus-view-icon-controller.c            | 18 +++++++++++++-----
 src/nautilus-view-icon-item-ui.c               |  4 ++--
 src/nautilus-view-icon-item-ui.h               |  2 +-
 src/resources/ui/nautilus-view-icon-item-ui.ui |  8 +++-----
 4 files changed, 19 insertions(+), 13 deletions(-)
---
diff --git a/src/nautilus-view-icon-controller.c b/src/nautilus-view-icon-controller.c
index 00539219e..7498ce744 100644
--- a/src/nautilus-view-icon-controller.c
+++ b/src/nautilus-view-icon-controller.c
@@ -423,7 +423,7 @@ get_first_selected_item_ui (NautilusViewIconController *self)
     file = NAUTILUS_FILE (selection->data);
     item_model = nautilus_view_model_get_item_from_file (self->model, file);
     i = nautilus_view_model_get_index (self->model, item_model);
-    return GTK_WIDGET (gtk_flow_box_get_child_at_index (self->view_ui, i));
+    return gtk_flow_box_child_get_child (gtk_flow_box_get_child_at_index (self->view_ui, i));
 }
 
 static void
@@ -1008,7 +1008,7 @@ scroll_to_file_on_idle (ScrollToFileData *data)
     file = nautilus_file_get_existing_by_uri (data->uri);
     item = nautilus_view_model_get_item_from_file (self->model, file);
     i = nautilus_view_model_get_index (self->model, item);
-    item_ui = GTK_WIDGET (gtk_flow_box_get_child_at_index (self->view_ui, i));
+    item_ui = gtk_flow_box_child_get_child (gtk_flow_box_get_child_at_index (self->view_ui, i));
     gtk_widget_translate_coordinates (item_ui, GTK_WIDGET (self->view_ui),
                                       0, 0,
                                       NULL, &item_y);
@@ -1294,7 +1294,11 @@ bind_item_ui (GtkWidget             **child,
               NautilusViewItemModel  *item_model,
               gpointer                user_data)
 {
-    nautilus_view_icon_item_ui_set_model (NAUTILUS_VIEW_ICON_ITEM_UI (*child),
+    GtkWidget *item_ui;
+
+    item_ui = gtk_flow_box_child_get_child (GTK_FLOW_BOX_CHILD (*child));
+
+    nautilus_view_icon_item_ui_set_model (NAUTILUS_VIEW_ICON_ITEM_UI (item_ui),
                                           item_model);
     nautilus_view_item_model_set_item_ui (item_model, *child);
 }
@@ -1309,8 +1313,12 @@ setup_item_ui (GtkWidget **child,
     item_ui = nautilus_view_icon_item_ui_new ();
     nautilus_view_item_ui_set_caption_attributes (item_ui, self->caption_attributes);
 
-    *child = GTK_WIDGET (item_ui);
-    gtk_widget_show (*child);
+    *child = gtk_flow_box_child_new ();
+    gtk_flow_box_child_set_child (GTK_FLOW_BOX_CHILD (*child),
+                                  GTK_WIDGET (item_ui));
+
+    gtk_widget_set_halign (*child, GTK_ALIGN_CENTER);
+    gtk_widget_set_valign (*child, GTK_ALIGN_START);
 }
 
 static GtkWidget *
diff --git a/src/nautilus-view-icon-item-ui.c b/src/nautilus-view-icon-item-ui.c
index 8bb1e2abe..b638f5315 100644
--- a/src/nautilus-view-icon-item-ui.c
+++ b/src/nautilus-view-icon-item-ui.c
@@ -5,7 +5,7 @@
 
 struct _NautilusViewIconItemUi
 {
-    GtkFlowBoxChild parent_instance;
+    GtkBox parent_instance;
 
     NautilusViewItemModel *model;
     GQuark *caption_attributes;
@@ -18,7 +18,7 @@ struct _NautilusViewIconItemUi
     GtkWidget *third_caption;
 };
 
-G_DEFINE_TYPE (NautilusViewIconItemUi, nautilus_view_icon_item_ui, GTK_TYPE_FLOW_BOX_CHILD)
+G_DEFINE_TYPE (NautilusViewIconItemUi, nautilus_view_icon_item_ui, GTK_TYPE_BOX)
 
 enum
 {
diff --git a/src/nautilus-view-icon-item-ui.h b/src/nautilus-view-icon-item-ui.h
index 5caed4700..09fcf7f0c 100644
--- a/src/nautilus-view-icon-item-ui.h
+++ b/src/nautilus-view-icon-item-ui.h
@@ -17,7 +17,7 @@ enum
 
 #define NAUTILUS_TYPE_VIEW_ICON_ITEM_UI (nautilus_view_icon_item_ui_get_type())
 
-G_DECLARE_FINAL_TYPE (NautilusViewIconItemUi, nautilus_view_icon_item_ui, NAUTILUS, VIEW_ICON_ITEM_UI, 
GtkFlowBoxChild)
+G_DECLARE_FINAL_TYPE (NautilusViewIconItemUi, nautilus_view_icon_item_ui, NAUTILUS, VIEW_ICON_ITEM_UI, 
GtkBox)
 
 NautilusViewIconItemUi * nautilus_view_icon_item_ui_new (void);
 void nautilus_view_icon_item_ui_set_model (NautilusViewIconItemUi *self,
diff --git a/src/resources/ui/nautilus-view-icon-item-ui.ui b/src/resources/ui/nautilus-view-icon-item-ui.ui
index b84ae21fd..e005a6d68 100644
--- a/src/resources/ui/nautilus-view-icon-item-ui.ui
+++ b/src/resources/ui/nautilus-view-icon-item-ui.ui
@@ -1,10 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
   <requires lib="gtk" version="4.0"/>
-  <template class="NautilusViewIconItemUi" parent="GtkFlowBoxChild">
-    <property name="halign">center</property>
-    <property name="valign">start</property>
-    <property name="child">
+  <template class="NautilusViewIconItemUi" parent="GtkBox">
+    <child>
       <object class="GtkBox">
         <property name="orientation">vertical</property>
         <property name="halign">center</property>
@@ -90,6 +88,6 @@
           </object>
         </child>
       </object>
-    </property>
+    </child>
   </template>
 </interface>