[gnome-builder/wip/gtk4-port] plugins/editorui: stub out workbench addin

[Christian Hergert <chergert src gnome org>]

commit 9302faed3b6b8a2e23562b214f842c74ce23f459
Author: Christian Hergert <chergert redhat com>
Date:   Fri Apr 1 21:14:59 2022 -0700

    plugins/editorui: stub out workbench addin

 src/plugins/editorui/editorui-plugin.c             | 11 +++-
 .../editorui/gbp-editorui-workbench-addin.c        | 77 ++++++++++++++++++++++
 .../editorui/gbp-editorui-workbench-addin.h        | 31 +++++++++
 src/plugins/editorui/meson.build                   |  1 +
 4 files changed, 118 insertions(+), 2 deletions(-)
---
diff --git a/src/plugins/editorui/editorui-plugin.c b/src/plugins/editorui/editorui-plugin.c
index 0a82e747f..015d0a924 100644
--- a/src/plugins/editorui/editorui-plugin.c
+++ b/src/plugins/editorui/editorui-plugin.c
@@ -22,12 +22,19 @@
 
 #include "config.h"
 
-#include "gbp-editorui-resources.h"
-
 #include <libpeas/peas.h>
 
+#include <libide-gui.h>
+
+#include "gbp-editorui-workbench-addin.h"
+#include "gbp-editorui-resources.h"
+
 _IDE_EXTERN void
 _gbp_editorui_register_types (PeasObjectModule *module)
 {
   g_resources_register (gbp_editorui_get_resource ());
+
+  peas_object_module_register_extension_type (module,
+                                              IDE_TYPE_WORKBENCH_ADDIN,
+                                              GBP_TYPE_EDITORUI_WORKBENCH_ADDIN);
 }
diff --git a/src/plugins/editorui/gbp-editorui-workbench-addin.c 
b/src/plugins/editorui/gbp-editorui-workbench-addin.c
new file mode 100644
index 000000000..533c76c64
--- /dev/null
+++ b/src/plugins/editorui/gbp-editorui-workbench-addin.c
@@ -0,0 +1,77 @@
+/* gbp-editorui-workbench-addin.c
+ *
+ * Copyright 2022 Christian Hergert <chergert redhat com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+#define G_LOG_DOMAIN "gbp-editorui-workbench-addin"
+
+#include "config.h"
+
+#include <libide-gui.h>
+
+#include "gbp-editorui-workbench-addin.h"
+
+struct _GbpEditoruiWorkbenchAddin
+{
+  GObject       parent_instance;
+  IdeWorkbench *workbench;
+};
+
+static void
+gbp_editorui_workbench_addin_load (IdeWorkbenchAddin *addin,
+                                   IdeWorkbench      *workbench)
+{
+  GbpEditoruiWorkbenchAddin *self = (GbpEditoruiWorkbenchAddin *)addin;
+
+  g_assert (GBP_IS_EDITORUI_WORKBENCH_ADDIN (self));
+  g_assert (IDE_IS_WORKBENCH (workbench));
+
+  self->workbench = workbench;
+}
+
+static void
+gbp_editorui_workbench_addin_unload (IdeWorkbenchAddin *addin,
+                                     IdeWorkbench      *workbench)
+{
+  GbpEditoruiWorkbenchAddin *self = (GbpEditoruiWorkbenchAddin *)addin;
+
+  g_assert (GBP_IS_EDITORUI_WORKBENCH_ADDIN (self));
+  g_assert (IDE_IS_WORKBENCH (workbench));
+
+  self->workbench = NULL;
+}
+
+static void
+workbench_addin_iface_init (IdeWorkbenchAddinInterface *iface)
+{
+  iface->load = gbp_editorui_workbench_addin_load;
+  iface->unload = gbp_editorui_workbench_addin_unload;
+}
+
+G_DEFINE_TYPE_WITH_CODE (GbpEditoruiWorkbenchAddin, gbp_editorui_workbench_addin, G_TYPE_OBJECT,
+                         G_IMPLEMENT_INTERFACE (IDE_TYPE_WORKBENCH_ADDIN, workbench_addin_iface_init))
+
+static void
+gbp_editorui_workbench_addin_class_init (GbpEditoruiWorkbenchAddinClass *klass)
+{
+}
+
+static void
+gbp_editorui_workbench_addin_init (GbpEditoruiWorkbenchAddin *self)
+{
+}
diff --git a/src/plugins/editorui/gbp-editorui-workbench-addin.h 
b/src/plugins/editorui/gbp-editorui-workbench-addin.h
new file mode 100644
index 000000000..ec1ec7809
--- /dev/null
+++ b/src/plugins/editorui/gbp-editorui-workbench-addin.h
@@ -0,0 +1,31 @@
+/* gbp-editorui-workbench-addin.h
+ *
+ * Copyright 2022 Christian Hergert <chergert redhat com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+#pragma once
+
+#include <glib-object.h>
+
+G_BEGIN_DECLS
+
+#define GBP_TYPE_EDITORUI_WORKBENCH_ADDIN (gbp_editorui_workbench_addin_get_type())
+
+G_DECLARE_FINAL_TYPE (GbpEditoruiWorkbenchAddin, gbp_editorui_workbench_addin, GBP, 
EDITORUI_WORKBENCH_ADDIN, GObject)
+
+G_END_DECLS
diff --git a/src/plugins/editorui/meson.build b/src/plugins/editorui/meson.build
index 436dac956..15ac96dea 100644
--- a/src/plugins/editorui/meson.build
+++ b/src/plugins/editorui/meson.build
@@ -1,5 +1,6 @@
 plugins_sources += files([
   'editorui-plugin.c',
+  'gbp-editorui-workbench-addin.c',
 ])
 
 plugin_editorui_resources = gnome.compile_resources(