mirror of
https://gitlab.gnome.org/GNOME/nautilus
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c1760ff543
GTK discourages subclassing widgets. The only reason we are subclassing here is to add struct fields. But we don't need to subclass a widget for that. We don't even need to subclass GObject. A plain data struct is enough.
135 lines
3.9 KiB
C
135 lines
3.9 KiB
C
/* Copyright (C) 2004 Red Hat, Inc
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* Copyright (c) 2007 Novell, Inc.
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* Copyright (c) 2017 Thomas Bechtold <thomasbechtold@jpberlin.de>
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* Copyright (c) 2018 Ernestas Kulik <ernestask@gnome.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, see <http://www.gnu.org/licenses/>.
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*
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* Author: Alexander Larsson <alexl@redhat.com>
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* XMP support by Hubert Figuiere <hfiguiere@novell.com>
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*/
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#include "nautilus-image-properties-page-provider.h"
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#include "nautilus-image-properties-page.h"
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#include <glib/gi18n.h>
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#include <nautilus-extension.h>
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#define NAUTILUS_IMAGE_PROPERTIES_PAGE_NAME "NautilusImagePropertiesPage::property_page"
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struct _NautilusImagesPropertiesPageProvider
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{
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GObject parent_instance;
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};
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static void property_page_provider_iface_init (NautilusPropertyPageProviderInterface *iface);
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G_DEFINE_DYNAMIC_TYPE_EXTENDED (NautilusImagesPropertiesPageProvider,
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nautilus_image_properties_page_provider,
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G_TYPE_OBJECT,
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0,
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G_IMPLEMENT_INTERFACE_DYNAMIC (NAUTILUS_TYPE_PROPERTY_PAGE_PROVIDER,
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property_page_provider_iface_init))
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static gboolean
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is_mime_type_supported (const char *mime_type)
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{
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g_autoptr (GSList) formats = NULL;
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if (mime_type == NULL)
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{
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return FALSE;
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}
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formats = gdk_pixbuf_get_formats ();
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for (GSList *l = formats; l != NULL; l = l->next)
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{
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g_auto (GStrv) mime_types = NULL;
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mime_types = gdk_pixbuf_format_get_mime_types (l->data);
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if (mime_types == NULL)
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{
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continue;
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}
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if (g_strv_contains ((const char * const *) mime_types, mime_type))
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{
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return TRUE;
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}
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}
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return FALSE;
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}
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static GList *
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get_pages (NautilusPropertyPageProvider *provider,
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GList *files)
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{
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NautilusFileInfo *file_info;
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g_autofree char *mime_type = NULL;
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GtkWidget *image_properties_page;
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NautilusPropertyPage *property_page;
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if (files == NULL || files->next != NULL)
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{
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return NULL;
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}
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file_info = NAUTILUS_FILE_INFO (files->data);
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mime_type = nautilus_file_info_get_mime_type (file_info);
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if (!is_mime_type_supported (mime_type))
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{
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return NULL;
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}
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image_properties_page = nautilus_image_properties_page_new (file_info);
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property_page = nautilus_property_page_new (NAUTILUS_IMAGE_PROPERTIES_PAGE_NAME,
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gtk_label_new (_("Image")),
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image_properties_page);
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return g_list_prepend (NULL, property_page);
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}
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static void
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property_page_provider_iface_init (NautilusPropertyPageProviderInterface *iface)
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{
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iface->get_pages = get_pages;
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}
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static void
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nautilus_image_properties_page_provider_init (NautilusImagesPropertiesPageProvider *self)
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{
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(void) self;
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}
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static void
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nautilus_image_properties_page_provider_class_init (NautilusImagesPropertiesPageProviderClass *klass)
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{
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(void) klass;
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}
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static void
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nautilus_image_properties_page_provider_class_finalize (NautilusImagesPropertiesPageProviderClass *klass)
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{
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(void) klass;
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}
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void
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nautilus_image_properties_page_provider_load (GTypeModule *module)
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{
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nautilus_image_properties_page_provider_register_type (module);
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}
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