[nautilus/wip/antoniof/properties-followup: 13/21] properties-window: Show current permissions in main page

[António Fernandes <antoniof src gnome org>]

commit c8749e26de05d3889a883c32abcf1476721e43b2
Author: António Fernandes <antoniof gnome org>
Date:   Thu Aug 4 17:54:44 2022 +0100

    properties-window: Show current permissions in main page
    
    This is immediately useful information.
    
    Deemphasize the action aspect: most people have no need for setting
    custom permissions.

 src/nautilus-file.c                            | 30 +++++++++++++++++++++
 src/nautilus-file.h                            |  2 ++
 src/nautilus-properties-window.c               | 36 ++++++++++++++++++++++++++
 src/resources/ui/nautilus-properties-window.ui | 18 ++++++++-----
 4 files changed, 79 insertions(+), 7 deletions(-)
---
diff --git a/src/nautilus-file.c b/src/nautilus-file.c
index 068b219c0..cbab57a8e 100644
--- a/src/nautilus-file.c
+++ b/src/nautilus-file.c
@@ -6257,6 +6257,21 @@ nautilus_file_can_get_owner (NautilusFile *file)
     return file->details->uid != -1;
 }
 
+/**
+ * nautilus_file_get_uid:
+ *
+ * Get the user id of the file's owner.
+ *
+ * @file: The file in question.
+ *
+ * Return value: (transfer none): the user id.
+ */
+const uid_t
+nautilus_file_get_uid (NautilusFile *file)
+{
+    return file->details->uid;
+}
+
 /**
  * nautilus_file_get_owner_name:
  *
@@ -6448,6 +6463,21 @@ nautilus_file_can_get_group (NautilusFile *file)
     return file->details->gid != -1;
 }
 
+/**
+ * nautilus_file_get_gid:
+ *
+ * Get the group id of the file's group.
+ *
+ * @file: The file in question.
+ *
+ * Return value: (transfer none): the group id.
+ */
+const gid_t
+nautilus_file_get_gid (NautilusFile *file)
+{
+    return file->details->gid;
+}
+
 /**
  * nautilus_file_get_group_name:
  *
diff --git a/src/nautilus-file.h b/src/nautilus-file.h
index 02cda5535..1cd331777 100644
--- a/src/nautilus-file.h
+++ b/src/nautilus-file.h
@@ -268,7 +268,9 @@ gboolean                nautilus_file_can_get_owner                     (Nautilu
 gboolean                nautilus_file_can_set_owner                     (NautilusFile                   
*file);
 gboolean                nautilus_file_can_get_group                     (NautilusFile                   
*file);
 gboolean                nautilus_file_can_set_group                     (NautilusFile                   
*file);
+uid_t                   nautilus_file_get_uid                           (NautilusFile                   
*file);
 char *                  nautilus_file_get_owner_name                    (NautilusFile                   
*file);
+gid_t                   nautilus_file_get_gid                           (NautilusFile                   
*file);
 char *                  nautilus_file_get_group_name                    (NautilusFile                   
*file);
 GList *                 nautilus_get_user_names                         (void);
 GList *                 nautilus_get_all_group_names                    (void);
diff --git a/src/nautilus-properties-window.c b/src/nautilus-properties-window.c
index f9790d403..502ccd655 100644
--- a/src/nautilus-properties-window.c
+++ b/src/nautilus-properties-window.c
@@ -126,6 +126,7 @@ struct _NautilusPropertiesWindow
     GtkWidget *accessed_value_label;
 
     GtkWidget *permissions_navigation_row;
+    GtkWidget *permissions_value_label;
 
     GtkListBox *extension_list_box;
 
@@ -1183,6 +1184,39 @@ get_target_permissions (NautilusPropertiesWindow *self)
     return p;
 }
 
+static void
+update_permissions_navigation_row (NautilusPropertiesWindow *self,
+                                   TargetPermissions        *target_perm)
+{
+    if (!target_perm->is_multi_file_window)
+    {
+        uid_t user_id = geteuid ();
+        gid_t group_id = getegid ();
+        PermissionType permission_type = PERMISSION_OTHER;
+        const gchar *text;
+
+        if (user_id == nautilus_file_get_uid (get_original_file (self)))
+        {
+            permission_type = PERMISSION_USER;
+        }
+        else if (group_id == nautilus_file_get_gid (get_original_file (self)))
+        {
+            permission_type = PERMISSION_GROUP;
+        }
+
+        if (nautilus_file_is_directory (get_original_file (self)))
+        {
+            text = permission_value_to_string (target_perm->folder_permissions[permission_type], TRUE);
+        }
+        else
+        {
+            text = permission_value_to_string (target_perm->file_permissions[permission_type], FALSE);
+        }
+
+        gtk_label_set_text (GTK_LABEL (self->permissions_value_label), text);
+    }
+}
+
 static void
 properties_window_update (NautilusPropertiesWindow *self,
                           GList                    *files)
@@ -1238,6 +1272,7 @@ properties_window_update (NautilusPropertiesWindow *self,
     {
         g_autofree TargetPermissions *target_perm = get_target_permissions (self);
 
+        update_permissions_navigation_row (self, target_perm);
         update_owner_row (self->owner_row, target_perm);
         update_group_row (self->group_row, target_perm);
         update_execution_row (GTK_WIDGET (self->execution_row), target_perm);
@@ -4270,6 +4305,7 @@ nautilus_properties_window_class_init (NautilusPropertiesWindowClass *klass)
     gtk_widget_class_bind_template_child (widget_class, NautilusPropertiesWindow, accessed_row);
     gtk_widget_class_bind_template_child (widget_class, NautilusPropertiesWindow, accessed_value_label);
     gtk_widget_class_bind_template_child (widget_class, NautilusPropertiesWindow, 
permissions_navigation_row);
+    gtk_widget_class_bind_template_child (widget_class, NautilusPropertiesWindow, permissions_value_label);
     gtk_widget_class_bind_template_child (widget_class, NautilusPropertiesWindow, extension_list_box);
     gtk_widget_class_bind_template_child (widget_class, NautilusPropertiesWindow, free_space_value_label);
     gtk_widget_class_bind_template_child (widget_class, NautilusPropertiesWindow, permissions_stack);
diff --git a/src/resources/ui/nautilus-properties-window.ui b/src/resources/ui/nautilus-properties-window.ui
index 1e4a08154..d62941335 100644
--- a/src/resources/ui/nautilus-properties-window.ui
+++ b/src/resources/ui/nautilus-properties-window.ui
@@ -609,16 +609,20 @@
                                   <object class="AdwActionRow" id="permissions_navigation_row">
                                     <property name="activatable">True</property>
                                     <property name="selectable">False</property>
-                                    <property name="title" translatable="yes">Set Custom 
_Permissions</property>
+                                    <property name="title" translatable="yes">_Permissions</property>
                                     <property name="use-underline">True</property>
                                     <signal name="activated" handler="navigate_permissions_page" 
object="NautilusPropertiesWindow" swapped="yes"/>
                                     <child>
-                                      <object class="GtkBox" id="permissions_navigation_action_box">
-                                        <child>
-                                          <object class="GtkImage">
-                                            <property name="icon-name">go-next-symbolic</property>
-                                          </object>
-                                        </child>
+                                      <object class="GtkLabel" id="permissions_value_label">
+                                        <property name="ellipsize">end</property>
+                                        <style>
+                                          <class name="dim-label"/>
+                                        </style>
+                                      </object>
+                                    </child>
+                                    <child>
+                                      <object class="GtkImage">
+                                        <property name="icon-name">go-next-symbolic</property>
                                       </object>
                                     </child>
                                   </object>