[gnome-photos/wip/rishi/collection: 3/8] Add PhotosOffsetCollectionViewController

[Debarshi Ray <debarshir src gnome org>]

commit f6535dcc08282d2e14bde6010e599173f9fd0557
Author: Debarshi Ray <debarshir gnome org>
Date:   Thu Jul 27 17:38:36 2017 +0200

    Add PhotosOffsetCollectionViewController

 src/Makefile.am                                |    2 +
 src/photos-offset-collection-view-controller.c |  130 ++++++++++++++++++++++++
 src/photos-offset-collection-view-controller.h |   43 ++++++++
 3 files changed, 175 insertions(+), 0 deletions(-)
---
diff --git a/src/Makefile.am b/src/Makefile.am
index b0649b6..3c8fec9 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -139,6 +139,8 @@ gnome_photos_SOURCES = \
        photos-media-server-item.h \
        photos-notification-manager.c \
        photos-notification-manager.h \
+       photos-offset-collection-view-controller.c \
+       photos-offset-collection-view-controller.h \
        photos-offset-collections-controller.c \
        photos-offset-collections-controller.h \
        photos-offset-controller.c \
diff --git a/src/photos-offset-collection-view-controller.c b/src/photos-offset-collection-view-controller.c
new file mode 100644
index 0000000..95790aa
--- /dev/null
+++ b/src/photos-offset-collection-view-controller.c
@@ -0,0 +1,130 @@
+/*
+ * Photos - access, organize and share your photos on GNOME
+ * Copyright © 2017 Red Hat, Inc.
+ *
+ * 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 2
+ * 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+/* Based on code from:
+ *   + Documents
+ */
+
+
+#include "config.h"
+
+#include <gio/gio.h>
+
+#include "photos-item-manager.h"
+#include "photos-offset-collection-view-controller.h"
+#include "photos-query-builder.h"
+#include "photos-search-context.h"
+
+
+struct _PhotosOffsetCollectionViewController
+{
+  PhotosOffsetController parent_instance;
+  PhotosBaseManager *item_mngr;
+};
+
+
+G_DEFINE_TYPE (PhotosOffsetCollectionViewController,
+               photos_offset_collection_view_controller,
+               PHOTOS_TYPE_OFFSET_CONTROLLER);
+
+
+static PhotosQuery *
+photos_offset_collection_view_controller_get_query (PhotosOffsetController *offset_cntrlr)
+{
+  PhotosOffsetCollectionViewController *self = PHOTOS_OFFSET_COLLECTION_VIEW_CONTROLLER (offset_cntrlr);
+  GApplication *app;
+  PhotosBaseItem *collection;
+  PhotosSearchContextState *state;
+
+  g_return_val_if_fail (self->item_mngr != NULL, NULL);
+
+  collection = photos_item_manager_get_active_collection (PHOTOS_ITEM_MANAGER (self->item_mngr));
+  g_return_val_if_fail (PHOTOS_IS_BASE_ITEM (collection), NULL);
+
+  app = g_application_get_default ();
+  state = photos_search_context_get_state (PHOTOS_SEARCH_CONTEXT (app));
+
+  return photos_query_builder_count_query (state, PHOTOS_QUERY_FLAGS_NONE);
+}
+
+
+static GObject *
+photos_offset_collection_view_controller_constructor (GType type,
+                                                      guint n_construct_params,
+                                                      GObjectConstructParam *construct_params)
+{
+  static GObject *self = NULL;
+
+  if (self == NULL)
+    {
+      self = G_OBJECT_CLASS (photos_offset_collection_view_controller_parent_class)->constructor (type,
+                                                                                                  
n_construct_params,
+                                                                                                  
construct_params);
+      g_object_add_weak_pointer (self, (gpointer) &self);
+      return self;
+    }
+
+  return g_object_ref (self);
+}
+
+
+static void
+photos_offset_collection_view_controller_finalize (GObject *object)
+{
+  PhotosOffsetCollectionViewController *self = PHOTOS_OFFSET_COLLECTION_VIEW_CONTROLLER (object);
+
+  if (self->item_mngr != NULL)
+    g_object_remove_weak_pointer (G_OBJECT (self->item_mngr), (gpointer *) &self->item_mngr);
+
+  G_OBJECT_CLASS (photos_offset_collection_view_controller_parent_class)->finalize (object);
+}
+
+
+static void
+photos_offset_collection_view_controller_init (PhotosOffsetCollectionViewController *self)
+{
+  GApplication *app;
+  PhotosSearchContextState *state;
+
+  app = g_application_get_default ();
+  state = photos_search_context_get_state (PHOTOS_SEARCH_CONTEXT (app));
+
+  self->item_mngr = state->item_mngr;
+  g_object_add_weak_pointer (G_OBJECT (self->item_mngr), (gpointer *) &self->item_mngr);
+}
+
+
+static void
+photos_offset_collection_view_controller_class_init (PhotosOffsetCollectionViewControllerClass *class)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (class);
+  PhotosOffsetControllerClass *offset_controller_class = PHOTOS_OFFSET_CONTROLLER_CLASS (class);
+
+  object_class->constructor = photos_offset_collection_view_controller_constructor;
+  object_class->finalize = photos_offset_collection_view_controller_finalize;
+  offset_controller_class->get_query = photos_offset_collection_view_controller_get_query;
+}
+
+
+PhotosOffsetController *
+photos_offset_collection_view_controller_dup_singleton (void)
+{
+  return g_object_new (PHOTOS_TYPE_OFFSET_COLLECTION_VIEW_CONTROLLER, NULL);
+}
diff --git a/src/photos-offset-collection-view-controller.h b/src/photos-offset-collection-view-controller.h
new file mode 100644
index 0000000..d51dbf4
--- /dev/null
+++ b/src/photos-offset-collection-view-controller.h
@@ -0,0 +1,43 @@
+/*
+ * Photos - access, organize and share your photos on GNOME
+ * Copyright © 2017 Red Hat, Inc.
+ *
+ * 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 2
+ * 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+/* Based on code from:
+ *   + Documents
+ */
+
+#ifndef PHOTOS_OFFSET_COLLECTION_VIEW_CONTROLLER_H
+#define PHOTOS_OFFSET_COLLECTION_VIEW_CONTROLLER_H
+
+#include "photos-offset-controller.h"
+
+G_BEGIN_DECLS
+
+#define PHOTOS_TYPE_OFFSET_COLLECTION_VIEW_CONTROLLER (photos_offset_collection_view_controller_get_type ())
+G_DECLARE_FINAL_TYPE (PhotosOffsetCollectionViewController,
+                      photos_offset_collection_view_controller,
+                      PHOTOS,
+                      OFFSET_COLLECTION_VIEW_CONTROLLER,
+                      PhotosOffsetController);
+
+PhotosOffsetController  *photos_offset_collection_view_controller_dup_singleton     (void);
+
+G_END_DECLS
+
+#endif /* PHOTOS_OFFSET_COLLECTION_VIEW_CONTROLLER_H */