[gnome-builder] codeui: add tree addin to render files with errors as squiggles

[Christian Hergert <chergert src gnome org>]

commit 466fd434aa775936d52959f0dcb7d2530f6615ea
Author: Christian Hergert <chergert redhat com>
Date:   Wed Jan 16 12:54:15 2019 -0800

    codeui: add tree addin to render files with errors as squiggles

 src/plugins/codeui/codeui-plugin.c         |  5 ++
 src/plugins/codeui/gbp-codeui-tree-addin.c | 89 ++++++++++++++++++++++++++++++
 src/plugins/codeui/gbp-codeui-tree-addin.h | 31 +++++++++++
 src/plugins/codeui/meson.build             |  1 +
 4 files changed, 126 insertions(+)
---
diff --git a/src/plugins/codeui/codeui-plugin.c b/src/plugins/codeui/codeui-plugin.c
index 099edef6f..ca837a85a 100644
--- a/src/plugins/codeui/codeui-plugin.c
+++ b/src/plugins/codeui/codeui-plugin.c
@@ -23,8 +23,10 @@
 #include <libpeas/peas.h>
 #include <libide-code.h>
 #include <libide-foundry.h>
+#include <libide-tree.h>
 
 #include "gbp-codeui-buffer-addin.h"
+#include "gbp-codeui-tree-addin.h"
 
 _IDE_EXTERN void
 _gbp_codeui_register_types (PeasObjectModule *module)
@@ -32,4 +34,7 @@ _gbp_codeui_register_types (PeasObjectModule *module)
   peas_object_module_register_extension_type (module,
                                               IDE_TYPE_BUFFER_ADDIN,
                                               GBP_TYPE_CODEUI_BUFFER_ADDIN);
+  peas_object_module_register_extension_type (module,
+                                              IDE_TYPE_TREE_ADDIN,
+                                              GBP_TYPE_CODEUI_TREE_ADDIN);
 }
diff --git a/src/plugins/codeui/gbp-codeui-tree-addin.c b/src/plugins/codeui/gbp-codeui-tree-addin.c
new file mode 100644
index 000000000..6c1d106eb
--- /dev/null
+++ b/src/plugins/codeui/gbp-codeui-tree-addin.c
@@ -0,0 +1,89 @@
+/* gbp-codeui-tree-addin.c
+ *
+ * Copyright 2019 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-codeui-tree-addin"
+
+#include "config.h"
+
+#include <libide-code.h>
+#include <libide-projects.h>
+#include <libide-tree.h>
+
+#include "gbp-codeui-tree-addin.h"
+
+struct _GbpCodeuiTreeAddin
+{
+  GObject parent_instance;
+};
+
+static void
+gbp_codeui_tree_addin_cell_data_func (IdeTreeAddin    *addin,
+                                      IdeTreeNode     *node,
+                                      GtkCellRenderer *cell)
+{
+  g_autoptr(IdeDiagnostics) diagnostics = NULL;
+  g_autoptr(IdeContext) context = NULL;
+  g_autoptr(GFile) file = NULL;
+  IdeDiagnosticsManager *diagmgr;
+  IdeProjectFile *project_file;
+  gboolean has_error = FALSE;
+
+  g_assert (IDE_IS_MAIN_THREAD ());
+  g_assert (GBP_IS_CODEUI_TREE_ADDIN (addin));
+  g_assert (IDE_IS_TREE_NODE (node));
+  g_assert (GTK_IS_CELL_RENDERER (cell));
+
+  if (!GTK_IS_CELL_RENDERER_TEXT (cell) ||
+      !ide_tree_node_holds (node, IDE_TYPE_PROJECT_FILE))
+    return;
+
+  project_file = ide_tree_node_get_item (node);
+  file = ide_project_file_ref_file (project_file);
+  context = ide_object_ref_context (IDE_OBJECT (project_file));
+  diagmgr = ide_diagnostics_manager_from_context (context);
+  diagnostics = ide_diagnostics_manager_get_diagnostics_for_file (diagmgr, file);
+
+  if (diagnostics != NULL)
+    {
+      if (ide_diagnostics_get_has_errors (diagnostics))
+        has_error = TRUE;
+    }
+
+  ide_tree_node_set_has_error (node, has_error);
+}
+
+static void
+tree_addin_iface_init (IdeTreeAddinInterface *iface)
+{
+  iface->cell_data_func = gbp_codeui_tree_addin_cell_data_func;
+}
+
+G_DEFINE_TYPE_WITH_CODE (GbpCodeuiTreeAddin, gbp_codeui_tree_addin, G_TYPE_OBJECT,
+                         G_IMPLEMENT_INTERFACE (IDE_TYPE_TREE_ADDIN, tree_addin_iface_init))
+
+static void
+gbp_codeui_tree_addin_class_init (GbpCodeuiTreeAddinClass *klass)
+{
+}
+
+static void
+gbp_codeui_tree_addin_init (GbpCodeuiTreeAddin *self)
+{
+}
diff --git a/src/plugins/codeui/gbp-codeui-tree-addin.h b/src/plugins/codeui/gbp-codeui-tree-addin.h
new file mode 100644
index 000000000..441bc3fd4
--- /dev/null
+++ b/src/plugins/codeui/gbp-codeui-tree-addin.h
@@ -0,0 +1,31 @@
+/* gbp-codeui-tree-addin.h
+ *
+ * Copyright 2019 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_CODEUI_TREE_ADDIN (gbp_codeui_tree_addin_get_type())
+
+G_DECLARE_FINAL_TYPE (GbpCodeuiTreeAddin, gbp_codeui_tree_addin, GBP, CODEUI_TREE_ADDIN, GObject)
+
+G_END_DECLS
diff --git a/src/plugins/codeui/meson.build b/src/plugins/codeui/meson.build
index c374a40cb..751517423 100644
--- a/src/plugins/codeui/meson.build
+++ b/src/plugins/codeui/meson.build
@@ -1,6 +1,7 @@
 plugins_sources += files([
   'codeui-plugin.c',
   'gbp-codeui-buffer-addin.c',
+  'gbp-codeui-tree-addin.c',
 ])
 
 plugin_codeui_resources = gnome.compile_resources(