[gtk/inspector-controllers: 7/7] inspector: Redo the actions page

[Matthias Clasen <matthiasc src gnome org>]

commit ccd9827b639ce8e1593787510f9071b658e3bc7e
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Jan 21 00:31:00 2021 -0500

    inspector: Redo the actions page
    
    Don't create widgets in bind, instead just set
    the new action on the action-editor, and let it
    recreate the parts that need to be recreated.

 gtk/inspector/action-editor.c | 25 +++++----------
 gtk/inspector/action-editor.h |  8 +++--
 gtk/inspector/actions.c       | 73 +++++++++++++++++++++++++------------------
 gtk/inspector/actions.ui      |  2 +-
 4 files changed, 57 insertions(+), 51 deletions(-)
---
diff --git a/gtk/inspector/action-editor.c b/gtk/inspector/action-editor.c
index 4225f6e413..980b31ab1a 100644
--- a/gtk/inspector/action-editor.c
+++ b/gtk/inspector/action-editor.c
@@ -238,8 +238,11 @@ dispose (GObject *object)
   g_free (r->name);
   if (r->state_type)
     g_variant_type_free (r->state_type);
-  g_signal_handlers_disconnect_by_func (r->owner, action_enabled_changed_cb, r);
-  g_signal_handlers_disconnect_by_func (r->owner, action_state_changed_cb, r);
+  if (r->owner)
+    {
+      g_signal_handlers_disconnect_by_func (r->owner, action_enabled_changed_cb, r);
+      g_signal_handlers_disconnect_by_func (r->owner, action_state_changed_cb, r);
+    }
 
   while ((child = gtk_widget_get_first_child (GTK_WIDGET (r))))
     gtk_widget_unparent (child);
@@ -323,18 +326,9 @@ gtk_inspector_action_editor_class_init (GtkInspectorActionEditorClass *klass)
 }
 
 GtkWidget *
-gtk_inspector_action_editor_new (GObject    *owner,
-                                 const char *name)
+gtk_inspector_action_editor_new (void)
 {
-  GtkInspectorActionEditor *self;
-
-  self = g_object_new (GTK_TYPE_INSPECTOR_ACTION_EDITOR,
-                       "owner", owner,
-                       "name", name,
-                       NULL);
-  update_widgets (self);
-
-  return GTK_WIDGET (self);
+  return g_object_new (GTK_TYPE_INSPECTOR_ACTION_EDITOR, NULL);
 }
 
 void
@@ -342,10 +336,7 @@ gtk_inspector_action_editor_set (GtkInspectorActionEditor *self,
                                  GObject                  *owner,
                                  const char               *name)
 {
-  g_object_set (self,
-                "owner", owner,
-                "name", name,
-                NULL);
+  g_object_set (self, "owner", owner, "name", name, NULL);
   update_widgets (self);
 }
 
diff --git a/gtk/inspector/action-editor.h b/gtk/inspector/action-editor.h
index f48640036c..c918a9a55c 100644
--- a/gtk/inspector/action-editor.h
+++ b/gtk/inspector/action-editor.h
@@ -33,9 +33,11 @@ typedef struct _GtkInspectorActionEditor GtkInspectorActionEditor;
 G_BEGIN_DECLS
 
 GType      gtk_inspector_action_editor_get_type (void);
-GtkWidget *gtk_inspector_action_editor_new      (GObject      *owner,
-                                                 const char   *name);
-void       gtk_inspector_action_editor_update   (GtkInspectorActionEditor *r,
+GtkWidget *gtk_inspector_action_editor_new      (void);
+void       gtk_inspector_action_editor_set      (GtkInspectorActionEditor *self,
+                                                 GObject                  *owner,
+                                                 const char               *name);
+void       gtk_inspector_action_editor_update   (GtkInspectorActionEditor *self,
                                                  gboolean                  enabled,
                                                  GVariant                 *state);
 
diff --git a/gtk/inspector/actions.c b/gtk/inspector/actions.c
index 60de944d31..1f8a46ca5a 100644
--- a/gtk/inspector/actions.c
+++ b/gtk/inspector/actions.c
@@ -46,6 +46,7 @@ struct _GtkInspectorActions
   GObject *object;
 
   GListStore *actions;
+  GtkSortListModel *sorted;
   GtkColumnViewColumn *name;
 };
 
@@ -90,6 +91,7 @@ setup_name_cb (GtkSignalListItemFactory *factory,
 
   label = gtk_label_new (NULL);
   gtk_label_set_xalign (GTK_LABEL (label), 0.0);
+  gtk_widget_add_css_class (label, "cell");
   gtk_list_item_set_child (list_item, label);
 }
 
@@ -114,6 +116,7 @@ setup_enabled_cb (GtkSignalListItemFactory *factory,
 
   label = gtk_label_new (NULL);
   gtk_label_set_xalign (GTK_LABEL (label), 0.5);
+  gtk_widget_add_css_class (label, "cell");
   gtk_list_item_set_child (list_item, label);
 }
 
@@ -149,8 +152,8 @@ setup_parameter_cb (GtkSignalListItemFactory *factory,
 
   label = gtk_label_new (NULL);
   gtk_label_set_xalign (GTK_LABEL (label), 0.5);
-  gtk_list_item_set_child (list_item, label);
   gtk_widget_add_css_class (label, "cell");
+  gtk_list_item_set_child (list_item, label);
 }
 
 static void
@@ -189,8 +192,8 @@ setup_state_cb (GtkSignalListItemFactory *factory,
   gtk_widget_set_margin_start (label, 5);
   gtk_widget_set_margin_end (label, 5);
   gtk_label_set_xalign (GTK_LABEL (label), 0.0);
-  gtk_list_item_set_child (list_item, label);
   gtk_widget_add_css_class (label, "cell");
+  gtk_list_item_set_child (list_item, label);
 }
 
 static void
@@ -202,7 +205,6 @@ bind_state_cb (GtkSignalListItemFactory *factory,
   GObject *owner;
   const char *name;
   GVariant *state;
-  char *state_string;
 
   item = gtk_list_item_get_item (list_item);
   label = gtk_list_item_get_child (list_item);
@@ -218,15 +220,27 @@ bind_state_cb (GtkSignalListItemFactory *factory,
     state = NULL;
 
   if (state)
-    state_string = g_variant_print (state, FALSE);
+    {
+      char *state_string;
+
+      state_string = g_variant_print (state, FALSE);
+      gtk_label_set_label (GTK_LABEL (label), state_string);
+      g_free (state_string);
+      g_variant_unref (state);
+    }
   else
-    state_string = g_strdup ("");
+    gtk_label_set_label (GTK_LABEL (label), "");
+}
 
-  gtk_label_set_label (GTK_LABEL (label), state_string);
+static void
+setup_changes_cb (GtkSignalListItemFactory *factory,
+                  GtkListItem              *list_item)
+{
+  GtkWidget *editor;
 
-  g_free (state_string);
-  if (state)
-    g_variant_unref (state);
+  editor = gtk_inspector_action_editor_new ();
+  gtk_widget_add_css_class (editor, "cell");
+  gtk_list_item_set_child (list_item, editor);
 }
 
 static void
@@ -239,20 +253,14 @@ bind_changes_cb (GtkSignalListItemFactory *factory,
   GtkWidget *editor;
 
   item = gtk_list_item_get_item (list_item);
+  editor = gtk_list_item_get_child (list_item);
 
   owner = action_holder_get_owner (ACTION_HOLDER (item));
   name = action_holder_get_name (ACTION_HOLDER (item));
 
-  editor = gtk_inspector_action_editor_new (owner, name);
-  gtk_widget_add_css_class (editor, "cell");
-  gtk_list_item_set_child (list_item, editor);
-}
-
-static void
-unbind_changes_cb (GtkSignalListItemFactory *factory,
-                   GtkListItem              *list_item)
-{
-  gtk_list_item_set_child (list_item, NULL);
+  gtk_inspector_action_editor_set (GTK_INSPECTOR_ACTION_EDITOR (editor),
+                                   owner,
+                                   name);
 }
 
 static void
@@ -284,12 +292,15 @@ add_muxer (GtkInspectorActions *sl,
 static gboolean
 reload (GtkInspectorActions *sl)
 {
-  g_list_store_remove_all (sl->actions);
+  gboolean loaded = FALSE;
+
+  g_object_unref (sl->actions);
+  sl->actions = g_list_store_new (ACTION_TYPE_HOLDER);
 
   if (GTK_IS_APPLICATION (sl->object))
     {
       add_group (sl, G_ACTION_GROUP (sl->object));
-      return TRUE;
+      loaded = TRUE;
     }
   else if (GTK_IS_WIDGET (sl->object))
     {
@@ -299,11 +310,13 @@ reload (GtkInspectorActions *sl)
       if (muxer)
         {
           add_muxer (sl, muxer);
-          return TRUE;
+          loaded = TRUE;
         }
     }
 
-  return FALSE;
+  gtk_sort_list_model_set_model (sl->sorted, G_LIST_MODEL (sl->actions));
+
+  return loaded;
 }
 
 static void
@@ -325,10 +338,10 @@ gtk_inspector_actions_set_object (GtkInspectorActions *sl,
   gtk_stack_page_set_visible (page, FALSE);
 
   g_set_object (&sl->object, object);
-  loaded = reload (sl);
-  gtk_stack_page_set_visible (page, loaded);
 
   gtk_column_view_sort_by_column (GTK_COLUMN_VIEW (sl->list), sl->name, GTK_SORT_ASCENDING);
+  loaded = reload (sl);
+  gtk_stack_page_set_visible (page, loaded);
 }
 
 static void
@@ -382,7 +395,6 @@ constructed (GObject *object)
 {
   GtkInspectorActions *sl = GTK_INSPECTOR_ACTIONS (object);
   GtkSorter *sorter;
-  GListModel *sorted;
   GListModel *model;
 
   g_signal_connect_swapped (sl->button, "clicked",
@@ -397,9 +409,9 @@ constructed (GObject *object)
   g_object_unref (sorter);
 
   sl->actions = g_list_store_new (ACTION_TYPE_HOLDER);
-  sorted = G_LIST_MODEL (gtk_sort_list_model_new (g_object_ref (G_LIST_MODEL (sl->actions)),
-                                                  g_object_ref (gtk_column_view_get_sorter (GTK_COLUMN_VIEW 
(sl->list)))));
-  model = G_LIST_MODEL (gtk_no_selection_new (sorted));
+  sl->sorted = gtk_sort_list_model_new (g_object_ref (G_LIST_MODEL (sl->actions)),
+                                        g_object_ref (gtk_column_view_get_sorter (GTK_COLUMN_VIEW 
(sl->list))));
+  model = G_LIST_MODEL (gtk_no_selection_new (g_object_ref (G_LIST_MODEL (sl->sorted))));
   gtk_column_view_set_model (GTK_COLUMN_VIEW (sl->list), GTK_SELECTION_MODEL (model));
   g_object_unref (model);
 }
@@ -410,6 +422,7 @@ dispose (GObject *object)
   GtkInspectorActions *sl = GTK_INSPECTOR_ACTIONS (object);
   GtkWidget *child;
 
+  g_clear_object (&sl->sorted);
   g_clear_object (&sl->actions);
   g_clear_object (&sl->object);
 
@@ -445,8 +458,8 @@ gtk_inspector_actions_class_init (GtkInspectorActionsClass *klass)
   gtk_widget_class_bind_template_callback (widget_class, bind_parameter_cb);
   gtk_widget_class_bind_template_callback (widget_class, setup_state_cb);
   gtk_widget_class_bind_template_callback (widget_class, bind_state_cb);
+  gtk_widget_class_bind_template_callback (widget_class, setup_changes_cb);
   gtk_widget_class_bind_template_callback (widget_class, bind_changes_cb);
-  gtk_widget_class_bind_template_callback (widget_class, unbind_changes_cb);
 
   gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_BOX_LAYOUT);
 }
diff --git a/gtk/inspector/actions.ui b/gtk/inspector/actions.ui
index f48320ceff..6b5982555b 100644
--- a/gtk/inspector/actions.ui
+++ b/gtk/inspector/actions.ui
@@ -64,8 +64,8 @@
                 <property name="expand">1</property>
                 <property name="factory">
                   <object class="GtkSignalListItemFactory">
+                    <signal name="setup" handler="setup_changes_cb"/>
                     <signal name="bind" handler="bind_changes_cb"/>
-                    <signal name="unbind" handler="unbind_changes_cb"/>
                   </object>
                 </property>
               </object>