[gnome-builder/wip/gtk4-port] plugins/find-other-file: add model for directories

[Christian Hergert <chergert src gnome org>]

commit c23fdf3e33283d13afe52c86c7bd26db80b1d7cb
Author: Christian Hergert <chergert redhat com>
Date:   Mon May 16 16:07:08 2022 -0700

    plugins/find-other-file: add model for directories
    
    This is meant to be a model we can join with the existing glob results so
    that we have all of the directories from the root to the target in the
    result set.
    
    Later on, we can make these directories be browsable instead of just
    opening a directory list view.

 .../find-other-file/gbp-find-other-file-browser.c  | 232 +++++++++++++++++++++
 .../find-other-file/gbp-find-other-file-browser.h  |  37 ++++
 src/plugins/find-other-file/meson.build            |   1 +
 3 files changed, 270 insertions(+)
---
diff --git a/src/plugins/find-other-file/gbp-find-other-file-browser.c 
b/src/plugins/find-other-file/gbp-find-other-file-browser.c
new file mode 100644
index 000000000..02cce29bd
--- /dev/null
+++ b/src/plugins/find-other-file/gbp-find-other-file-browser.c
@@ -0,0 +1,232 @@
+/* gbp-find-other-file-browser.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-find-other-file-browser"
+
+#include "config.h"
+
+#include "gbp-find-other-file-browser.h"
+#include "gbp-found-file.h"
+
+struct _GbpFindOtherFileBrowser
+{
+  GObject    parent_instance;
+  GPtrArray *items;
+  GFile     *file;
+  GFile     *root;
+};
+
+enum {
+  PROP_0,
+  PROP_ROOT,
+  PROP_FILE,
+  N_PROPS
+};
+
+static GType
+gbp_find_other_file_browser_get_item_type (GListModel *model)
+{
+  return G_TYPE_FILE;
+}
+
+static guint
+gbp_find_other_file_browser_get_n_items (GListModel *model)
+{
+  return GBP_FIND_OTHER_FILE_BROWSER (model)->items->len;
+}
+
+static gpointer
+gbp_find_other_file_browser_get_item (GListModel *model,
+                                      guint       position)
+{
+  GbpFindOtherFileBrowser *self = GBP_FIND_OTHER_FILE_BROWSER (model);
+
+  if (position < self->items->len)
+    return g_object_ref (g_ptr_array_index (self->items, position));
+
+  return NULL;
+}
+
+static void
+list_model_iface_init (GListModelInterface *iface)
+{
+  iface->get_item_type = gbp_find_other_file_browser_get_item_type;
+  iface->get_n_items = gbp_find_other_file_browser_get_n_items;
+  iface->get_item = gbp_find_other_file_browser_get_item;
+}
+
+G_DEFINE_FINAL_TYPE_WITH_CODE (GbpFindOtherFileBrowser, gbp_find_other_file_browser, G_TYPE_OBJECT,
+                               G_IMPLEMENT_INTERFACE (G_TYPE_LIST_MODEL, list_model_iface_init))
+
+static GParamSpec *properties [N_PROPS];
+
+static void
+gbp_find_other_file_browser_reload (GbpFindOtherFileBrowser *self)
+{
+  guint old_len = 0;
+  guint new_len = 0;
+
+  g_assert (GBP_IS_FIND_OTHER_FILE_BROWSER (self));
+
+  old_len = self->items->len;
+
+  if (old_len)
+    g_ptr_array_remove_range (self->items, 0, old_len);
+
+  if (self->root != NULL &&
+      self->file != NULL &&
+      g_file_has_prefix (self->file, self->root))
+    {
+      GFile *parent = g_file_get_parent (self->file);
+
+      while (parent != NULL && !g_file_equal (parent, self->root))
+        {
+          g_ptr_array_insert (self->items, 0, parent);
+          parent = g_file_get_parent (parent);
+        }
+
+      g_clear_object (&parent);
+    }
+
+  new_len = self->items->len;
+
+  if (old_len || new_len)
+    g_list_model_items_changed (G_LIST_MODEL (self), 0, old_len, new_len);
+}
+
+static void
+gbp_find_other_file_browser_dispose (GObject *object)
+{
+  GbpFindOtherFileBrowser *self = (GbpFindOtherFileBrowser *)object;
+
+  g_clear_object (&self->file);
+  g_clear_object (&self->root);
+  g_clear_pointer (&self->items, g_ptr_array_unref);
+
+  G_OBJECT_CLASS (gbp_find_other_file_browser_parent_class)->dispose (object);
+}
+
+static void
+gbp_find_other_file_browser_get_property (GObject    *object,
+                                          guint       prop_id,
+                                          GValue     *value,
+                                          GParamSpec *pspec)
+{
+  GbpFindOtherFileBrowser *self = GBP_FIND_OTHER_FILE_BROWSER (object);
+
+  switch (prop_id)
+    {
+    case PROP_FILE:
+      g_value_set_object (value, self->file);
+      break;
+
+    case PROP_ROOT:
+      g_value_set_object (value, self->root);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+    }
+}
+
+static void
+gbp_find_other_file_browser_set_property (GObject      *object,
+                                          guint         prop_id,
+                                          const GValue *value,
+                                          GParamSpec   *pspec)
+{
+  GbpFindOtherFileBrowser *self = GBP_FIND_OTHER_FILE_BROWSER (object);
+
+  switch (prop_id)
+    {
+    case PROP_FILE:
+      gbp_find_other_file_browser_set_file (self, g_value_get_object (value));
+      break;
+
+    case PROP_ROOT:
+      gbp_find_other_file_browser_set_root (self, g_value_get_object (value));
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+    }
+}
+
+static void
+gbp_find_other_file_browser_class_init (GbpFindOtherFileBrowserClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->dispose = gbp_find_other_file_browser_dispose;
+  object_class->get_property = gbp_find_other_file_browser_get_property;
+  object_class->set_property = gbp_find_other_file_browser_set_property;
+
+  properties [PROP_FILE] =
+    g_param_spec_object ("file", NULL, NULL,
+                         G_TYPE_FILE,
+                         (G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS));
+
+  properties [PROP_ROOT] =
+    g_param_spec_object ("root", NULL, NULL,
+                         G_TYPE_FILE,
+                         (G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS));
+
+  g_object_class_install_properties (object_class, N_PROPS, properties);
+}
+
+static void
+gbp_find_other_file_browser_init (GbpFindOtherFileBrowser *self)
+{
+  self->items = g_ptr_array_new_with_free_func (g_object_unref);
+}
+
+void
+gbp_find_other_file_browser_set_file (GbpFindOtherFileBrowser *self,
+                                      GFile                   *file)
+{
+  g_return_if_fail (GBP_IS_FIND_OTHER_FILE_BROWSER (self));
+  g_return_if_fail (!file || G_IS_FILE (file));
+
+  if (g_set_object (&self->file, file))
+    {
+      gbp_find_other_file_browser_reload (self);
+      g_object_notify_by_pspec (G_OBJECT (self), properties [PROP_FILE]);
+    }
+}
+
+void
+gbp_find_other_file_browser_set_root (GbpFindOtherFileBrowser *self,
+                                      GFile                   *root)
+{
+  g_return_if_fail (GBP_IS_FIND_OTHER_FILE_BROWSER (self));
+  g_return_if_fail (!root || G_IS_FILE (root));
+
+  if (g_set_object (&self->root, root))
+    {
+      gbp_find_other_file_browser_reload (self);
+      g_object_notify_by_pspec (G_OBJECT (self), properties [PROP_ROOT]);
+    }
+}
+
+GbpFindOtherFileBrowser *
+gbp_find_other_file_browser_new (void)
+{
+  return g_object_new (GBP_TYPE_FIND_OTHER_FILE_BROWSER, NULL);
+}
diff --git a/src/plugins/find-other-file/gbp-find-other-file-browser.h 
b/src/plugins/find-other-file/gbp-find-other-file-browser.h
new file mode 100644
index 000000000..f93adb1cd
--- /dev/null
+++ b/src/plugins/find-other-file/gbp-find-other-file-browser.h
@@ -0,0 +1,37 @@
+/* gbp-find-other-file-browser.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 <gio/gio.h>
+
+G_BEGIN_DECLS
+
+#define GBP_TYPE_FIND_OTHER_FILE_BROWSER (gbp_find_other_file_browser_get_type())
+
+G_DECLARE_FINAL_TYPE (GbpFindOtherFileBrowser, gbp_find_other_file_browser, GBP, FIND_OTHER_FILE_BROWSER, 
GObject)
+
+GbpFindOtherFileBrowser *gbp_find_other_file_browser_new      (void);
+void                     gbp_find_other_file_browser_set_root (GbpFindOtherFileBrowser *self,
+                                                               GFile                   *root);
+void                     gbp_find_other_file_browser_set_file (GbpFindOtherFileBrowser *self,
+                                                               GFile                   *file);
+
+G_END_DECLS
diff --git a/src/plugins/find-other-file/meson.build b/src/plugins/find-other-file/meson.build
index 44be2897b..7c527d822 100644
--- a/src/plugins/find-other-file/meson.build
+++ b/src/plugins/find-other-file/meson.build
@@ -1,6 +1,7 @@
 plugins_sources += files([
   'find-other-file-plugin.c',
   'gbp-simple-similar-file-locator.c',
+  'gbp-find-other-file-browser.c',
   'gbp-find-other-file-popover.c',
   'gbp-find-other-file-workspace-addin.c',
   'gbp-found-file.c',