[gnome-photos/wip/rishi/collection: 11/15] Add PhotosTrackerCollectionViewController

[Debarshi Ray <debarshir src gnome org>]

commit 1cd58b161e0f0fe3dce36753986bc8eec53bffba
Author: Debarshi Ray <debarshir gnome org>
Date:   Thu Jul 27 18:23:35 2017 +0200

    Add PhotosTrackerCollectionViewController

 src/Makefile.am                                 |    2 +
 src/photos-tracker-collection-view-controller.c |  192 +++++++++++++++++++++++
 src/photos-tracker-collection-view-controller.h |   39 +++++
 3 files changed, 233 insertions(+), 0 deletions(-)
---
diff --git a/src/Makefile.am b/src/Makefile.am
index 3c8fec9..4eb0896 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -268,6 +268,8 @@ gnome_photos_SOURCES = \
        photos-tracker-change-event.h \
        photos-tracker-change-monitor.c \
        photos-tracker-change-monitor.h \
+       photos-tracker-collection-view-controller.c \
+       photos-tracker-collection-view-controller.h \
        photos-tracker-collections-controller.c \
        photos-tracker-collections-controller.h \
        photos-tracker-controller.c \
diff --git a/src/photos-tracker-collection-view-controller.c b/src/photos-tracker-collection-view-controller.c
new file mode 100644
index 0000000..eaf28fc
--- /dev/null
+++ b/src/photos-tracker-collection-view-controller.c
@@ -0,0 +1,192 @@
+/*
+ * Photos - access, organize and share your photos on GNOME
+ * Copyright © 2013 – 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"
+#include "photos-tracker-collection-view-controller.h"
+#include "photos-utils.h"
+
+
+struct _PhotosTrackerCollectionViewController
+{
+  PhotosTrackerController parent_instance;
+  PhotosBaseManager *item_mngr;
+  PhotosModeController *mode_cntrlr;
+  PhotosOffsetController *offset_cntrlr;
+};
+
+
+G_DEFINE_TYPE_WITH_CODE (PhotosTrackerCollectionViewController,
+                         photos_tracker_collection_view_controller,
+                         PHOTOS_TYPE_TRACKER_CONTROLLER,
+                         photos_utils_ensure_extension_points ();
+                         g_io_extension_point_implement (PHOTOS_TRACKER_CONTROLLER_EXTENSION_POINT_NAME,
+                                                         g_define_type_id,
+                                                         "collection-view",
+                                                         0));
+
+
+static void
+photos_tracker_collection_view_controller_active_collection_changed (PhotosTrackerCollectionViewController 
*self)
+{
+  PhotosWindowMode mode;
+
+  g_return_if_fail (self->mode_cntrlr != NULL);
+
+  mode = photos_mode_controller_get_window_mode (self->mode_cntrlr);
+  if (mode != PHOTOS_WINDOW_MODE_COLLECTION_VIEW)
+    return;
+
+  photos_tracker_controller_refresh_for_object (PHOTOS_TRACKER_CONTROLLER (self));
+}
+
+
+static PhotosOffsetController *
+photos_tracker_collection_view_controller_get_offset_controller (PhotosTrackerController *trk_cntrlr)
+{
+  PhotosTrackerCollectionViewController *self = PHOTOS_TRACKER_COLLECTION_VIEW_CONTROLLER (trk_cntrlr);
+  return g_object_ref (self->offset_cntrlr);
+}
+
+
+static PhotosQuery *
+photos_tracker_collection_view_controller_get_query (PhotosTrackerController *trk_cntrlr)
+{
+  PhotosTrackerCollectionViewController *self = PHOTOS_TRACKER_COLLECTION_VIEW_CONTROLLER (trk_cntrlr);
+  GApplication *app;
+  PhotosBaseItem *collection;
+  PhotosSearchContextState *state;
+  gint flags;
+
+  g_return_val_if_fail (self->item_mngr != NULL, NULL);
+
+  collection = photos_item_manager_get_active_collection (PHOTOS_ITEM_MANAGER (self->item_mngr));
+  if (collection != NULL)
+    flags = PHOTOS_QUERY_FLAGS_NONE;
+  else
+    flags = PHOTOS_QUERY_FLAGS_COLLECTIONS;
+
+  app = g_application_get_default ();
+  state = photos_search_context_get_state (PHOTOS_SEARCH_CONTEXT (app));
+
+  return photos_query_builder_global_query (state, flags, self->offset_cntrlr);
+}
+
+
+static GObject *
+photos_tracker_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_tracker_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_tracker_collection_view_controller_dispose (GObject *object)
+{
+  PhotosTrackerCollectionViewController *self = PHOTOS_TRACKER_COLLECTION_VIEW_CONTROLLER (object);
+
+  g_clear_object (&self->offset_cntrlr);
+
+  G_OBJECT_CLASS (photos_tracker_collection_view_controller_parent_class)->dispose (object);
+}
+
+
+static void
+photos_tracker_collection_view_controller_finalize (GObject *object)
+{
+  PhotosTrackerCollectionViewController *self = PHOTOS_TRACKER_COLLECTION_VIEW_CONTROLLER (object);
+
+  if (self->item_mngr != NULL)
+    g_object_remove_weak_pointer (G_OBJECT (self->item_mngr), (gpointer *) &self->item_mngr);
+
+  if (self->mode_cntrlr != NULL)
+    g_object_remove_weak_pointer (G_OBJECT (self->mode_cntrlr), (gpointer *) &self->mode_cntrlr);
+
+  G_OBJECT_CLASS (photos_tracker_collection_view_controller_parent_class)->finalize (object);
+}
+
+
+static void
+photos_tracker_collection_view_controller_init (PhotosTrackerCollectionViewController *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);
+  g_signal_connect_swapped (self->item_mngr,
+                            "active-collection-changed",
+                            G_CALLBACK (photos_tracker_collection_view_controller_active_collection_changed),
+                            self);
+
+  self->mode_cntrlr = state->mode_cntrlr;
+  g_object_add_weak_pointer (G_OBJECT (self->mode_cntrlr), (gpointer *) &self->mode_cntrlr);
+
+  self->offset_cntrlr = photos_offset_collection_view_controller_dup_singleton ();
+}
+
+
+static void
+photos_tracker_collection_view_controller_class_init (PhotosTrackerCollectionViewControllerClass *class)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (class);
+  PhotosTrackerControllerClass *tracker_controller_class = PHOTOS_TRACKER_CONTROLLER_CLASS (class);
+
+  object_class->constructor = photos_tracker_collection_view_controller_constructor;
+  object_class->dispose = photos_tracker_collection_view_controller_dispose;
+  object_class->finalize = photos_tracker_collection_view_controller_finalize;
+  tracker_controller_class->get_offset_controller = 
photos_tracker_collection_view_controller_get_offset_controller;
+  tracker_controller_class->get_query = photos_tracker_collection_view_controller_get_query;
+}
+
+
+PhotosTrackerController *
+photos_tracker_collection_view_controller_dup_singleton (void)
+{
+  return g_object_new (PHOTOS_TYPE_TRACKER_COLLECTION_VIEW_CONTROLLER,
+                       "mode", PHOTOS_WINDOW_MODE_COLLECTIONS,
+                       NULL);
+}
diff --git a/src/photos-tracker-collection-view-controller.h b/src/photos-tracker-collection-view-controller.h
new file mode 100644
index 0000000..17d15db
--- /dev/null
+++ b/src/photos-tracker-collection-view-controller.h
@@ -0,0 +1,39 @@
+/*
+ * Photos - access, organize and share your photos on GNOME
+ * Copyright © 2013 – 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.
+ */
+
+#ifndef PHOTOS_TRACKER_COLLECTION_VIEW_CONTROLLER_H
+#define PHOTOS_TRACKER_COLLECTION_VIEW_CONTROLLER_H
+
+#include "photos-tracker-controller.h"
+
+G_BEGIN_DECLS
+
+#define PHOTOS_TYPE_TRACKER_COLLECTION_VIEW_CONTROLLER (photos_tracker_collection_view_controller_get_type 
())
+G_DECLARE_FINAL_TYPE (PhotosTrackerCollectionViewController,
+                      photos_tracker_collection_view_controller,
+                      PHOTOS,
+                      TRACKER_COLLECTION_VIEW_CONTROLLER,
+                      PhotosTrackerController);
+
+PhotosTrackerController  *photos_tracker_collection_view_controller_dup_singleton     (void);
+
+G_END_DECLS
+
+#endif /* PHOTOS_TRACKER_COLLECTION_VIEW_CONTROLLER_H */