diff options
Diffstat (limited to 'libdocument/ev-attachment.c')
| -rw-r--r-- | libdocument/ev-attachment.c | 409 |
1 files changed, 409 insertions, 0 deletions
diff --git a/libdocument/ev-attachment.c b/libdocument/ev-attachment.c new file mode 100644 index 0000000..7e7ca12 --- /dev/null +++ b/libdocument/ev-attachment.c @@ -0,0 +1,409 @@ +/* this file is part of evince, a gnome document viewer + * + * Copyright (C) 2006 Carlos Garcia Campos <carlosgc@gnome.org> + * + * Evince 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. + * + * Evince 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. + */ + +#include <glib/gi18n.h> +#include <glib/gstdio.h> +#include <libgnomevfs/gnome-vfs.h> +#include <libgnomevfs/gnome-vfs-mime-handlers.h> +#include <libgnomevfs/gnome-vfs-mime-utils.h> +#include "ev-file-helpers.h" +#include "ev-attachment.h" + +enum +{ + PROP_0, + PROP_NAME, + PROP_DESCRIPTION, + PROP_MTIME, + PROP_CTIME, + PROP_SIZE, + PROP_DATA +}; + +struct _EvAttachmentPrivate { + gchar *name; + gchar *description; + GTime mtime; + GTime ctime; + gsize size; + gchar *data; + gchar *mime_type; + + GnomeVFSMimeApplication *app; + gchar *tmp_uri; +}; + +#define EV_ATTACHMENT_GET_PRIVATE(object) \ + (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_ATTACHMENT, EvAttachmentPrivate)) + +G_DEFINE_TYPE (EvAttachment, ev_attachment, G_TYPE_OBJECT) + +GQuark +ev_attachment_error_quark (void) +{ + static GQuark error_quark = 0; + + if (error_quark == 0) + error_quark = + g_quark_from_static_string ("ev-attachment-error-quark"); + + return error_quark; +} + +static void +ev_attachment_finalize (GObject *object) +{ + EvAttachment *attachment = EV_ATTACHMENT (object); + + if (attachment->priv->name) { + g_free (attachment->priv->name); + attachment->priv->name = NULL; + } + + if (attachment->priv->description) { + g_free (attachment->priv->description); + attachment->priv->description = NULL; + } + + if (attachment->priv->data) { + g_free (attachment->priv->data); + attachment->priv->data = NULL; + } + + if (attachment->priv->mime_type) { + g_free (attachment->priv->mime_type); + attachment->priv->mime_type = NULL; + } + + if (attachment->priv->app) { + gnome_vfs_mime_application_free (attachment->priv->app); + attachment->priv->app = NULL; + } + + if (attachment->priv->tmp_uri) { + g_unlink (attachment->priv->tmp_uri); + g_free (attachment->priv->tmp_uri); + attachment->priv->tmp_uri = NULL; + } + + (* G_OBJECT_CLASS (ev_attachment_parent_class)->finalize) (object); +} + +static void +ev_attachment_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *param_spec) +{ + EvAttachment *attachment = EV_ATTACHMENT (object); + + switch (prop_id) { + case PROP_NAME: + attachment->priv->name = g_value_dup_string (value); + break; + case PROP_DESCRIPTION: + attachment->priv->description = g_value_dup_string (value); + break; + case PROP_MTIME: + attachment->priv->mtime = g_value_get_ulong (value); + break; + case PROP_CTIME: + attachment->priv->ctime = g_value_get_ulong (value); + break; + case PROP_SIZE: + attachment->priv->size = g_value_get_uint (value); + break; + case PROP_DATA: + attachment->priv->data = g_value_get_pointer (value); + attachment->priv->mime_type = + g_strdup (gnome_vfs_get_mime_type_for_data (attachment->priv->data, + attachment->priv->size)); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, + prop_id, + param_spec); + break; + } +} + +static void +ev_attachment_class_init (EvAttachmentClass *klass) +{ + GObjectClass *g_object_class; + + g_object_class = G_OBJECT_CLASS (klass); + + g_object_class->set_property = ev_attachment_set_property; + + g_type_class_add_private (g_object_class, sizeof (EvAttachmentPrivate)); + + /* Properties */ + g_object_class_install_property (g_object_class, + PROP_NAME, + g_param_spec_string ("name", + "Name", + "The attachment name", + NULL, + G_PARAM_WRITABLE | + G_PARAM_CONSTRUCT_ONLY)); + g_object_class_install_property (g_object_class, + PROP_DESCRIPTION, + g_param_spec_string ("description", + "Description", + "The attachment description", + NULL, + G_PARAM_WRITABLE | + G_PARAM_CONSTRUCT_ONLY)); + g_object_class_install_property (g_object_class, + PROP_MTIME, + g_param_spec_ulong ("mtime", + "ModifiedTime", + "The attachment modification date", + 0, G_MAXULONG, 0, + G_PARAM_WRITABLE | + G_PARAM_CONSTRUCT_ONLY)); + g_object_class_install_property (g_object_class, + PROP_CTIME, + g_param_spec_ulong ("ctime", + "CreationTime", + "The attachment creation date", + 0, G_MAXULONG, 0, + G_PARAM_WRITABLE | + G_PARAM_CONSTRUCT_ONLY)); + g_object_class_install_property (g_object_class, + PROP_SIZE, + g_param_spec_uint ("size", + "Size", + "The attachment size", + 0, G_MAXUINT, 0, + G_PARAM_WRITABLE | + G_PARAM_CONSTRUCT_ONLY)); + g_object_class_install_property (g_object_class, + PROP_DATA, + g_param_spec_pointer ("data", + "Data", + "The attachment data", + G_PARAM_WRITABLE | + G_PARAM_CONSTRUCT_ONLY)); + + g_object_class->finalize = ev_attachment_finalize; +} + +static void +ev_attachment_init (EvAttachment *attachment) +{ + attachment->priv = EV_ATTACHMENT_GET_PRIVATE (attachment); + + attachment->priv->name = NULL; + attachment->priv->description = NULL; + attachment->priv->data = NULL; + attachment->priv->mime_type = NULL; + + attachment->priv->tmp_uri = NULL; +} + +EvAttachment * +ev_attachment_new (const gchar *name, + const gchar *description, + GTime mtime, + GTime ctime, + gsize size, + gpointer data) +{ + EvAttachment *attachment; + + attachment = g_object_new (EV_TYPE_ATTACHMENT, + "name", name, + "description", description, + "mtime", mtime, + "ctime", ctime, + "size", size, + "data", data, + NULL); + + return attachment; +} + +const gchar * +ev_attachment_get_name (EvAttachment *attachment) +{ + g_return_val_if_fail (EV_IS_ATTACHMENT (attachment), NULL); + + return attachment->priv->name; +} + +const gchar * +ev_attachment_get_description (EvAttachment *attachment) +{ + g_return_val_if_fail (EV_IS_ATTACHMENT (attachment), NULL); + + return attachment->priv->description; +} + +GTime +ev_attachment_get_modification_date (EvAttachment *attachment) +{ + g_return_val_if_fail (EV_IS_ATTACHMENT (attachment), 0); + + return attachment->priv->mtime; +} + +GTime +ev_attachment_get_creation_date (EvAttachment *attachment) +{ + g_return_val_if_fail (EV_IS_ATTACHMENT (attachment), 0); + + return attachment->priv->ctime; +} + +const gchar * +ev_attachment_get_mime_type (EvAttachment *attachment) +{ + g_return_val_if_fail (EV_IS_ATTACHMENT (attachment), NULL); + + return attachment->priv->mime_type; +} + +gboolean +ev_attachment_save (EvAttachment *attachment, + const gchar *uri, + GError **error) +{ + GnomeVFSHandle *handle = NULL; + GnomeVFSFileSize written; + GnomeVFSResult result; + + g_return_val_if_fail (EV_IS_ATTACHMENT (attachment), FALSE); + g_return_val_if_fail (uri != NULL, FALSE); + + result = gnome_vfs_create (&handle, uri, + GNOME_VFS_OPEN_WRITE, + FALSE, 0644); + if (result != GNOME_VFS_OK) { + g_set_error (error, + EV_ATTACHMENT_ERROR, + (gint) result, + _("Couldn't save attachment “%s”: %s"), + uri, + gnome_vfs_result_to_string (result)); + + return FALSE; + } + + result = gnome_vfs_write (handle, attachment->priv->data, + attachment->priv->size, &written); + if (result != GNOME_VFS_OK || written < attachment->priv->size){ + g_set_error (error, + EV_ATTACHMENT_ERROR, + (gint) result, + _("Couldn't save attachment “%s”: %s"), + uri, + gnome_vfs_result_to_string (result)); + + gnome_vfs_close (handle); + + return FALSE; + } + + gnome_vfs_close (handle); + + return TRUE; +} + +static gboolean +ev_attachment_launch_app (EvAttachment *attachment, + GError **error) +{ + GnomeVFSResult result; + GList *uris = NULL; + + g_assert (attachment->priv->tmp_uri != NULL); + g_assert (attachment->priv->app != NULL); + + uris = g_list_prepend (uris, attachment->priv->tmp_uri); + result = gnome_vfs_mime_application_launch (attachment->priv->app, + uris); + + if (result != GNOME_VFS_OK) { + g_set_error (error, + EV_ATTACHMENT_ERROR, + (gint) result, + _("Couldn't open attachment “%s”: %s"), + attachment->priv->name, + gnome_vfs_result_to_string (result)); + + g_list_free (uris); + + return FALSE; + } + + g_list_free (uris); + + return TRUE; +} + +gboolean +ev_attachment_open (EvAttachment *attachment, + GError **error) +{ + + gboolean retval = FALSE; + GnomeVFSMimeApplication *default_app = NULL; + + g_return_val_if_fail (EV_IS_ATTACHMENT (attachment), FALSE); + + if (!attachment->priv->app) { + default_app = gnome_vfs_mime_get_default_application (attachment->priv->mime_type); + attachment->priv->app = default_app; + } + + if (!attachment->priv->app) { + g_set_error (error, + EV_ATTACHMENT_ERROR, + 0, + _("Couldn't open attachment “%s”"), + attachment->priv->name); + + return FALSE; + } + + if (attachment->priv->tmp_uri && + g_file_test (attachment->priv->tmp_uri, G_FILE_TEST_EXISTS)) { + retval = ev_attachment_launch_app (attachment, error); + } else { + gchar *uri, *filename; + + filename = g_build_filename (ev_tmp_dir (), attachment->priv->name, NULL); + uri = g_filename_to_uri (filename, NULL, NULL); + + if (ev_attachment_save (attachment, uri, error)) { + if (attachment->priv->tmp_uri) + g_free (attachment->priv->tmp_uri); + attachment->priv->tmp_uri = g_strdup (filename); + + retval = ev_attachment_launch_app (attachment, error); + } + + g_free (filename); + g_free (uri); + } + + return retval; +} |