[gnome-photos/wip/rishi/constrained-add: 1/4] item-manager: Shuffle some code around

[Debarshi Ray <debarshir src gnome org>]

commit fc0b41d14fb0609024d734d80b77420d31b77ee9
Author: Debarshi Ray <debarshir gnome org>
Date:   Thu Jan 12 10:54:28 2017 +0100

    item-manager: Shuffle some code around
    
    This will make the subsequent commit easier to read.

 src/photos-item-manager.c |  242 +++++++++++++++++++++++---------------------
 1 files changed, 126 insertions(+), 116 deletions(-)
---
diff --git a/src/photos-item-manager.c b/src/photos-item-manager.c
index dc7c6d6..d87b354 100644
--- a/src/photos-item-manager.c
+++ b/src/photos-item-manager.c
@@ -1,6 +1,6 @@
 /*
  * Photos - access, organize and share your photos on GNOME
- * Copyright © 2012 – 2016 Red Hat, Inc.
+ * Copyright © 2012 – 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
@@ -142,6 +142,127 @@ photos_item_manager_add_object (PhotosBaseManager *mngr, GObject *object)
 }
 
 
+static gboolean
+photos_item_manager_cursor_is_collection (TrackerSparqlCursor *cursor)
+{
+  gboolean ret_val;
+  const gchar *rdf_type;
+
+  rdf_type = tracker_sparql_cursor_get_string (cursor, PHOTOS_QUERY_COLUMNS_RDF_TYPE, NULL);
+  ret_val = strstr (rdf_type, "nfo#DataContainer") != NULL;
+  return ret_val;
+}
+
+
+static void
+photos_item_manager_info_updated (PhotosBaseItem *item, gpointer user_data)
+{
+  PhotosItemManager *self = PHOTOS_ITEM_MANAGER (user_data);
+  PhotosBaseItem *updated_item;
+  gboolean is_collection;
+  gboolean is_favorite;
+  const gchar *id;
+
+  g_return_if_fail (PHOTOS_IS_BASE_ITEM (item));
+
+  id = photos_filterable_get_id (PHOTOS_FILTERABLE (item));
+  updated_item = PHOTOS_BASE_ITEM (photos_base_manager_get_object_by_id (PHOTOS_BASE_MANAGER (self), id));
+  if (updated_item == NULL)
+    return;
+
+  g_return_if_fail (updated_item == item);
+
+  is_collection = photos_base_item_is_collection (item);
+  is_favorite = photos_base_item_is_favorite (item);
+
+  if (is_collection)
+    {
+      if (self->active_collection == NULL)
+        photos_base_manager_add_object (self->item_mngr_chldrn[PHOTOS_WINDOW_MODE_COLLECTIONS], G_OBJECT 
(item));
+    }
+  else
+    {
+      if (is_favorite)
+        photos_base_manager_add_object (self->item_mngr_chldrn[PHOTOS_WINDOW_MODE_FAVORITES], G_OBJECT 
(item));
+
+      photos_base_manager_add_object (self->item_mngr_chldrn[PHOTOS_WINDOW_MODE_OVERVIEW], G_OBJECT (item));
+    }
+
+  if (is_collection)
+    {
+      photos_base_manager_remove_object (self->item_mngr_chldrn[PHOTOS_WINDOW_MODE_FAVORITES], G_OBJECT 
(item));
+      photos_base_manager_remove_object (self->item_mngr_chldrn[PHOTOS_WINDOW_MODE_OVERVIEW], G_OBJECT 
(item));
+    }
+  else
+    {
+      if (self->active_collection == NULL)
+        photos_base_manager_remove_object (self->item_mngr_chldrn[PHOTOS_WINDOW_MODE_COLLECTIONS], G_OBJECT 
(item));
+
+      if (!is_favorite)
+        photos_base_manager_remove_object (self->item_mngr_chldrn[PHOTOS_WINDOW_MODE_FAVORITES], G_OBJECT 
(item));
+    }
+}
+
+
+static void
+photos_item_manager_add_cursor_for_mode (PhotosItemManager *self,
+                                         TrackerSparqlCursor *cursor,
+                                         PhotosWindowMode mode)
+{
+  PhotosBaseItem *item = NULL;
+  PhotosBaseManager *item_mngr_chld;
+  gboolean is_collection;
+  const gchar *id;
+
+  g_return_if_fail (PHOTOS_IS_ITEM_MANAGER (self));
+  g_return_if_fail (TRACKER_SPARQL_IS_CURSOR (cursor));
+  g_return_if_fail (mode != PHOTOS_WINDOW_MODE_NONE);
+  g_return_if_fail (mode != PHOTOS_WINDOW_MODE_EDIT);
+  g_return_if_fail (mode != PHOTOS_WINDOW_MODE_PREVIEW);
+
+  is_collection = photos_item_manager_cursor_is_collection (cursor);
+  g_return_if_fail ((is_collection && (mode == PHOTOS_WINDOW_MODE_COLLECTIONS || mode == 
PHOTOS_WINDOW_MODE_SEARCH))
+                    || (!is_collection && (mode != PHOTOS_WINDOW_MODE_COLLECTIONS || self->active_collection 
!= NULL)));
+
+  item_mngr_chld = self->item_mngr_chldrn[mode];
+  id = tracker_sparql_cursor_get_string (cursor, PHOTOS_QUERY_COLUMNS_URN, NULL);
+
+  item = PHOTOS_BASE_ITEM (photos_base_manager_get_object_by_id (item_mngr_chld, id));
+  if (item != NULL)
+    {
+      g_object_ref (item);
+    }
+  else
+    {
+      gboolean already_present = FALSE;
+
+      item = PHOTOS_BASE_ITEM (photos_base_manager_get_object_by_id (PHOTOS_BASE_MANAGER (self), id));
+      if (item != NULL)
+        {
+          g_object_ref (item);
+          already_present = TRUE;
+        }
+      else
+        {
+          item = photos_item_manager_create_item (self, cursor);
+          if (photos_base_item_is_collection (item))
+            g_hash_table_insert (self->collections, g_strdup (id), g_object_ref (item));
+
+          g_signal_connect_object (item, "info-updated", G_CALLBACK (photos_item_manager_info_updated), 
self, 0);
+        }
+
+      photos_base_manager_add_object (item_mngr_chld, G_OBJECT (item));
+      photos_base_manager_add_object (self->item_mngr_chldrn[0], G_OBJECT (item));
+
+      if (!already_present)
+        g_signal_emit_by_name (self, "object-added", G_OBJECT (item));
+    }
+
+ out:
+  g_clear_object (&item);
+}
+
+
 static void
 photos_item_manager_check_wait_for_changes (PhotosItemManager *self, const gchar *id, const gchar *uri)
 {
@@ -162,18 +283,6 @@ photos_item_manager_check_wait_for_changes (PhotosItemManager *self, const gchar
 }
 
 
-static gboolean
-photos_item_manager_cursor_is_collection (TrackerSparqlCursor *cursor)
-{
-  gboolean ret_val;
-  const gchar *rdf_type;
-
-  rdf_type = tracker_sparql_cursor_get_string (cursor, PHOTOS_QUERY_COLUMNS_RDF_TYPE, NULL);
-  ret_val = strstr (rdf_type, "nfo#DataContainer") != NULL;
-  return ret_val;
-}
-
-
 static void
 photos_item_manager_item_created_executed (GObject *source_object, GAsyncResult *res, gpointer user_data)
 {
@@ -393,56 +502,6 @@ photos_item_manager_get_where (PhotosBaseManager *mngr, gint flags)
 
 
 static void
-photos_item_manager_info_updated (PhotosBaseItem *item, gpointer user_data)
-{
-  PhotosItemManager *self = PHOTOS_ITEM_MANAGER (user_data);
-  PhotosBaseItem *updated_item;
-  gboolean is_collection;
-  gboolean is_favorite;
-  const gchar *id;
-
-  g_return_if_fail (PHOTOS_IS_BASE_ITEM (item));
-
-  id = photos_filterable_get_id (PHOTOS_FILTERABLE (item));
-  updated_item = PHOTOS_BASE_ITEM (photos_base_manager_get_object_by_id (PHOTOS_BASE_MANAGER (self), id));
-  if (updated_item == NULL)
-    return;
-
-  g_return_if_fail (updated_item == item);
-
-  is_collection = photos_base_item_is_collection (item);
-  is_favorite = photos_base_item_is_favorite (item);
-
-  if (is_collection)
-    {
-      if (self->active_collection == NULL)
-        photos_base_manager_add_object (self->item_mngr_chldrn[PHOTOS_WINDOW_MODE_COLLECTIONS], G_OBJECT 
(item));
-    }
-  else
-    {
-      if (is_favorite)
-        photos_base_manager_add_object (self->item_mngr_chldrn[PHOTOS_WINDOW_MODE_FAVORITES], G_OBJECT 
(item));
-
-      photos_base_manager_add_object (self->item_mngr_chldrn[PHOTOS_WINDOW_MODE_OVERVIEW], G_OBJECT (item));
-    }
-
-  if (is_collection)
-    {
-      photos_base_manager_remove_object (self->item_mngr_chldrn[PHOTOS_WINDOW_MODE_FAVORITES], G_OBJECT 
(item));
-      photos_base_manager_remove_object (self->item_mngr_chldrn[PHOTOS_WINDOW_MODE_OVERVIEW], G_OBJECT 
(item));
-    }
-  else
-    {
-      if (self->active_collection == NULL)
-        photos_base_manager_remove_object (self->item_mngr_chldrn[PHOTOS_WINDOW_MODE_COLLECTIONS], G_OBJECT 
(item));
-
-      if (!is_favorite)
-        photos_base_manager_remove_object (self->item_mngr_chldrn[PHOTOS_WINDOW_MODE_FAVORITES], G_OBJECT 
(item));
-    }
-}
-
-
-static void
 photos_item_manager_item_load (GObject *source_object, GAsyncResult *res, gpointer user_data)
 {
   PhotosItemManager *self = PHOTOS_ITEM_MANAGER (user_data);
@@ -880,14 +939,14 @@ photos_item_manager_add_item (PhotosItemManager *self, TrackerSparqlCursor *curs
         photos_item_manager_activate_previous_collection (self);
 
       if (self->active_collection == NULL)
-        photos_item_manager_add_item_for_mode (self, PHOTOS_WINDOW_MODE_COLLECTIONS, cursor);
+        photos_item_manager_add_cursor_for_mode (self, cursor, PHOTOS_WINDOW_MODE_COLLECTIONS);
     }
   else
     {
       if (photos_item_manager_cursor_is_favorite (cursor))
-        photos_item_manager_add_item_for_mode (self, PHOTOS_WINDOW_MODE_FAVORITES, cursor);
+        photos_item_manager_add_cursor_for_mode (self, cursor, PHOTOS_WINDOW_MODE_FAVORITES);
 
-      photos_item_manager_add_item_for_mode (self, PHOTOS_WINDOW_MODE_OVERVIEW, cursor);
+      photos_item_manager_add_cursor_for_mode (self, cursor, PHOTOS_WINDOW_MODE_OVERVIEW);
     }
 }
 
@@ -895,56 +954,7 @@ photos_item_manager_add_item (PhotosItemManager *self, TrackerSparqlCursor *curs
 void
 photos_item_manager_add_item_for_mode (PhotosItemManager *self, PhotosWindowMode mode, TrackerSparqlCursor 
*cursor)
 {
-  PhotosBaseItem *item = NULL;
-  PhotosBaseManager *item_mngr_chld;
-  gboolean is_collection;
-  const gchar *id;
-
-  g_return_if_fail (PHOTOS_IS_ITEM_MANAGER (self));
-  g_return_if_fail (TRACKER_SPARQL_IS_CURSOR (cursor));
-  g_return_if_fail (mode != PHOTOS_WINDOW_MODE_NONE);
-  g_return_if_fail (mode != PHOTOS_WINDOW_MODE_EDIT);
-  g_return_if_fail (mode != PHOTOS_WINDOW_MODE_PREVIEW);
-
-  is_collection = photos_item_manager_cursor_is_collection (cursor);
-  g_return_if_fail ((is_collection && (mode == PHOTOS_WINDOW_MODE_COLLECTIONS || mode == 
PHOTOS_WINDOW_MODE_SEARCH))
-                    || (!is_collection && (mode != PHOTOS_WINDOW_MODE_COLLECTIONS || self->active_collection 
!= NULL)));
-
-  item_mngr_chld = self->item_mngr_chldrn[mode];
-  id = tracker_sparql_cursor_get_string (cursor, PHOTOS_QUERY_COLUMNS_URN, NULL);
-
-  item = PHOTOS_BASE_ITEM (photos_base_manager_get_object_by_id (item_mngr_chld, id));
-  if (item != NULL)
-    {
-      g_object_ref (item);
-    }
-  else
-    {
-      gboolean already_present = FALSE;
-
-      item = PHOTOS_BASE_ITEM (photos_base_manager_get_object_by_id (PHOTOS_BASE_MANAGER (self), id));
-      if (item != NULL)
-        {
-          g_object_ref (item);
-          already_present = TRUE;
-        }
-      else
-        {
-          item = photos_item_manager_create_item (self, cursor);
-          if (photos_base_item_is_collection (item))
-            g_hash_table_insert (self->collections, g_strdup (id), g_object_ref (item));
-
-          g_signal_connect_object (item, "info-updated", G_CALLBACK (photos_item_manager_info_updated), 
self, 0);
-        }
-
-      photos_base_manager_add_object (item_mngr_chld, G_OBJECT (item));
-      photos_base_manager_add_object (self->item_mngr_chldrn[0], G_OBJECT (item));
-
-      if (!already_present)
-        g_signal_emit_by_name (self, "object-added", G_OBJECT (item));
-    }
-
-  g_clear_object (&item);
+  photos_item_manager_add_cursor_for_mode (self, cursor, mode);
 }