[gnome-photos] Add PhotosDeleteNotification

[Debarshi Ray <debarshir src gnome org>]

commit 33214c72e13104418dd5600579e9c45b33e2248b
Author: Pranav Kant <pranav913 gmail com>
Date:   Tue Jul 22 21:20:39 2014 +0200

    Add PhotosDeleteNotification
    
    https://bugzilla.gnome.org/show_bug.cgi?id=720222

 src/Makefile.am                  |    2 +
 src/photos-delete-notification.c |  257 ++++++++++++++++++++++++++++++++++++++
 src/photos-delete-notification.h |   72 +++++++++++
 src/photos-selection-toolbar.c   |   21 +++-
 4 files changed, 351 insertions(+), 1 deletions(-)
---
diff --git a/src/Makefile.am b/src/Makefile.am
index 1069b80..8a04c55 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -88,6 +88,8 @@ gnome_photos_SOURCES = \
        photos-create-collection-job.h \
        photos-delete-item-job.c \
        photos-delete-item-job.h \
+       photos-delete-notification.c \
+       photos-delete-notification.h \
        photos-dlna-renderer.c \
        photos-dlna-renderer.h \
        photos-dlna-renderers-dialog.c \
diff --git a/src/photos-delete-notification.c b/src/photos-delete-notification.c
new file mode 100644
index 0000000..73ec3e0
--- /dev/null
+++ b/src/photos-delete-notification.c
@@ -0,0 +1,257 @@
+/*
+ * Photos - access, organize and share your photos on GNOME
+ * Copyright © 2014 Pranav Kant
+ *
+ * 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.
+ */
+
+#include "config.h"
+
+#include <glib/gi18n.h>
+
+#include "photos-base-item.h"
+#include "photos-delete-notification.h"
+#include "photos-icons.h"
+#include "photos-notification-manager.h"
+#include "photos-item-manager.h"
+
+
+struct _PhotosDeleteNotificationPrivate
+{
+  GList *items;
+  GtkWidget *ntfctn_mngr;
+  PhotosBaseManager *item_mngr;
+  guint timeout_id;
+};
+
+enum
+{
+  PROP_0,
+  PROP_ITEMS
+};
+
+
+G_DEFINE_TYPE_WITH_PRIVATE (PhotosDeleteNotification, photos_delete_notification, GTK_TYPE_GRID);
+
+
+enum
+{
+    DELETE_TIMEOUT = 10 /* s */
+};
+
+
+static void
+photos_delete_notification_remove_timeout (PhotosDeleteNotification *self)
+{
+  PhotosDeleteNotificationPrivate *priv = self->priv;
+
+  if (priv->timeout_id != 0)
+    {
+      g_source_remove (priv->timeout_id);
+      priv->timeout_id = 0;
+    }
+}
+
+
+static void
+photos_delete_notification_destroy (PhotosDeleteNotification *self)
+{
+  GtkWidget *parent;
+
+  photos_delete_notification_remove_timeout (self);
+
+  parent = gtk_widget_get_parent (GTK_WIDGET (self));
+  if (parent != NULL)
+    gtk_container_remove (GTK_CONTAINER (parent), GTK_WIDGET (self));
+}
+
+
+static void
+photos_delete_notification_delete_items (PhotosDeleteNotification *self)
+{
+  PhotosDeleteNotificationPrivate *priv = self->priv;
+  GList *l;
+
+  for (l = priv->items; l != NULL; l = l->next)
+    {
+      PhotosBaseItem *item = PHOTOS_BASE_ITEM (l->data);
+      photos_base_item_trash (item);
+    }
+
+  photos_delete_notification_destroy (self);
+}
+
+
+static gboolean
+photos_delete_notification_timeout (gpointer user_data)
+{
+  PhotosDeleteNotification *self = PHOTOS_DELETE_NOTIFICATION (user_data);
+
+  self->priv->timeout_id = 0;
+  photos_delete_notification_delete_items (self);
+  return G_SOURCE_REMOVE;
+}
+
+
+static void
+photos_delete_notification_undo_clicked (PhotosDeleteNotification *self)
+{
+  PhotosDeleteNotificationPrivate *priv = self->priv;
+  GList *l;
+
+  for (l = priv->items; l != NULL; l = l->next)
+    {
+      GObject *item = G_OBJECT (l->data);
+      photos_base_manager_add_object (priv->item_mngr, item);
+    }
+
+  photos_delete_notification_destroy (self);
+}
+
+
+static void
+photos_delete_notification_constructed (GObject *object)
+{
+  PhotosDeleteNotification *self = PHOTOS_DELETE_NOTIFICATION (object);
+  PhotosDeleteNotificationPrivate *priv = self->priv;
+  GtkWidget *close;
+  GtkWidget *image;
+  GtkWidget *label;
+  GtkWidget *undo;
+  guint length;
+
+  G_OBJECT_CLASS (photos_delete_notification_parent_class)->constructed (object);
+
+  length = g_list_length (priv->items);
+  label = gtk_label_new (ngettext ("Selected item has been deleted",
+                                   "Selected items have been deleted",
+                                   length));
+  gtk_widget_set_halign (label, GTK_ALIGN_START);
+  gtk_container_add (GTK_CONTAINER (self), label);
+
+  image = gtk_image_new_from_icon_name (PHOTOS_ICON_WINDOW_CLOSE_SYMBOLIC, GTK_ICON_SIZE_INVALID);
+  gtk_widget_set_margin_bottom (image, 2);
+  gtk_widget_set_margin_top (image, 2);
+  gtk_image_set_pixel_size (GTK_IMAGE (image), 16);
+
+  undo = gtk_button_new_with_label (_("Undo"));
+  gtk_widget_set_valign (undo, GTK_ALIGN_CENTER);
+  gtk_container_add (GTK_CONTAINER (self), undo);
+  g_signal_connect_swapped (undo, "clicked", G_CALLBACK (photos_delete_notification_undo_clicked), self);
+
+  close = gtk_button_new ();
+  gtk_widget_set_valign (close, GTK_ALIGN_CENTER);
+  gtk_button_set_focus_on_click (GTK_BUTTON (close), FALSE);
+  gtk_button_set_relief (GTK_BUTTON (close), GTK_RELIEF_NONE);
+  gtk_container_add (GTK_CONTAINER (close), image);
+  gtk_container_add (GTK_CONTAINER (self), close);
+  g_signal_connect_swapped (close, "clicked", G_CALLBACK (photos_delete_notification_delete_items), self);
+
+  photos_notification_manager_add_notification (PHOTOS_NOTIFICATION_MANAGER (priv->ntfctn_mngr),
+                                                GTK_WIDGET (self));
+
+  priv->timeout_id = g_timeout_add_seconds_full (G_PRIORITY_DEFAULT,
+                                                 DELETE_TIMEOUT,
+                                                 photos_delete_notification_timeout,
+                                                 g_object_ref (self),
+                                                 g_object_unref);
+}
+
+
+static void
+photos_delete_notification_dispose (GObject *object)
+{
+  PhotosDeleteNotification *self = PHOTOS_DELETE_NOTIFICATION (object);
+  PhotosDeleteNotificationPrivate *priv = self->priv;
+
+  if (priv->items != NULL)
+    {
+      g_list_free_full (priv->items, g_object_unref);
+      priv->items = NULL;
+    }
+
+  g_clear_object (&priv->ntfctn_mngr);
+  g_clear_object (&priv->item_mngr);
+
+  G_OBJECT_CLASS (photos_delete_notification_parent_class)->dispose (object);
+}
+
+
+static void
+photos_delete_notification_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec 
*pspec)
+{
+  PhotosDeleteNotification *self = PHOTOS_DELETE_NOTIFICATION (object);
+
+  switch (prop_id)
+    {
+    case PROP_ITEMS:
+      {
+        GList *items;
+
+        items = (GList *) g_value_get_pointer (value);
+        self->priv->items = g_list_copy_deep (items, (GCopyFunc) g_object_ref, NULL);
+        break;
+      }
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+
+static void
+photos_delete_notification_init (PhotosDeleteNotification *self)
+{
+  PhotosDeleteNotificationPrivate *priv;
+
+  self->priv = photos_delete_notification_get_instance_private (self);
+  priv = self->priv;
+
+  priv->ntfctn_mngr = g_object_ref_sink (photos_notification_manager_dup_singleton ());
+  priv->item_mngr = photos_item_manager_dup_singleton ();
+}
+
+
+static void
+photos_delete_notification_class_init (PhotosDeleteNotificationClass *class)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (class);
+
+  object_class->constructed = photos_delete_notification_constructed;
+  object_class->dispose = photos_delete_notification_dispose;
+  object_class->set_property = photos_delete_notification_set_property;
+
+  g_object_class_install_property (object_class,
+                                   PROP_ITEMS,
+                                   g_param_spec_pointer ("items",
+                                                         "List of PhotosBaseItems",
+                                                         "List of items that are being deleted",
+                                                         G_PARAM_CONSTRUCT_ONLY | G_PARAM_WRITABLE));
+}
+
+
+void
+photos_delete_notification_new (GList *items)
+{
+  g_object_new (PHOTOS_TYPE_DELETE_NOTIFICATION,
+                "column-spacing", 12,
+                "items", items,
+                "margin-left", 12,
+                "margin-right", 12,
+                "orientation", GTK_ORIENTATION_HORIZONTAL,
+                NULL);
+}
diff --git a/src/photos-delete-notification.h b/src/photos-delete-notification.h
new file mode 100644
index 0000000..08aa7f6
--- /dev/null
+++ b/src/photos-delete-notification.h
@@ -0,0 +1,72 @@
+/*
+ * Photos - access, organize and share your photos on GNOME
+ * Copyright © 2014 Pranav Kant
+ *
+ * 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_DELETE_NOTIFICATION_H
+#define PHOTOS_DELETE_NOTIFICATION_H
+
+#include <glib.h>
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+#define PHOTOS_TYPE_DELETE_NOTIFICATION (photos_delete_notification_get_type ())
+
+#define PHOTOS_DELETE_NOTIFICATION(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST ((obj), \
+   PHOTOS_TYPE_DELETE_NOTIFICATION, PhotosDeleteNotification))
+
+#define PHOTOS_DELETE_NOTIFICATION_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST ((klass), \
+   PHOTOS_TYPE_DELETE_NOTIFICATION, PhotosDeleteNotificationClass))
+
+#define PHOTOS_IS_DELETE_NOTIFICATION(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE ((obj), \
+   PHOTOS_TYPE_DELETE_NOTIFICATION))
+
+#define PHOTOS_IS_DELETE_NOTIFICATION_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE ((klass), \
+   PHOTOS_TYPE_DELETE_NOTIFICATION))
+
+#define PHOTOS_DELETE_NOTIFICATION_GET_CLASS(obj) \
+  (G_TYPE_INSTANCE_GET_CLASS ((obj), \
+   PHOTOS_TYPE_DELETE_NOTIFICATION, PhotosDeleteNotificationClass))
+
+typedef struct _PhotosDeleteNotification        PhotosDeleteNotification;
+typedef struct _PhotosDeleteNotificationClass   PhotosDeleteNotificationClass;
+typedef struct _PhotosDeleteNotificationPrivate PhotosDeleteNotificationPrivate;
+
+struct _PhotosDeleteNotification
+{
+  GtkGrid parent_instance;
+  PhotosDeleteNotificationPrivate *priv;
+};
+
+struct _PhotosDeleteNotificationClass
+{
+  GtkGridClass parent_class;
+};
+
+GType               photos_delete_notification_get_type           (void) G_GNUC_CONST;
+
+void                photos_delete_notification_new                (GList *items);
+
+G_END_DECLS
+
+#endif /* PHOTOS_DELETE_NOTIFICATION_H */
diff --git a/src/photos-selection-toolbar.c b/src/photos-selection-toolbar.c
index 9566989..58d0050 100644
--- a/src/photos-selection-toolbar.c
+++ b/src/photos-selection-toolbar.c
@@ -1,5 +1,6 @@
 /*
  * Photos - access, organize and share your photos on GNOME
+ * Copyright © 2014 Pranav Kant
  * Copyright © 2012, 2013, 2014 Red Hat, Inc.
  *
  * This program is free software; you can redistribute it and/or
@@ -30,6 +31,8 @@
 #include <libgd/gd.h>
 
 #include "photos-base-item.h"
+#include "photos-delete-notification.h"
+#include "photos-filterable.h"
 #include "photos-icons.h"
 #include "photos-item-manager.h"
 #include "photos-organize-collection-dialog.h"
@@ -374,6 +377,7 @@ photos_selection_toolbar_trash_clicked (GtkButton *button, gpointer user_data)
 {
   PhotosSelectionToolbar *self = PHOTOS_SELECTION_TOOLBAR (user_data);
   PhotosSelectionToolbarPrivate *priv = self->priv;
+  GList *items = NULL;
   GList *selection;
   GList *l;
 
@@ -384,10 +388,25 @@ photos_selection_toolbar_trash_clicked (GtkButton *button, gpointer user_data)
       const gchar *urn = (gchar *) l->data;
 
       item = PHOTOS_BASE_ITEM (photos_base_manager_get_object_by_id (priv->item_mngr, urn));
-      photos_base_item_trash (item);
+      items = g_list_prepend (items, g_object_ref (item));
     }
 
+  /* Removing an item from the item manager changes the selection, so
+   * we can't use the selection while removing items.
+   */
+  for (l = items; l != NULL; l = l->next)
+    {
+      PhotosBaseItem *item = PHOTOS_BASE_ITEM (l->data);
+      const gchar *urn;
+
+      urn = photos_filterable_get_id (PHOTOS_FILTERABLE (item));
+      photos_base_manager_remove_object_by_id (priv->item_mngr, urn);
+    }
+
+  photos_delete_notification_new (items);
   photos_selection_controller_set_selection_mode (priv->sel_cntrlr, FALSE);
+
+  g_list_free_full (items, g_object_unref);
 }