C++ G_IS_FILE函数代码示例

static gboolean
ide_git_vcs_is_ignored (IdeVcs  *vcs,
                        GFile   *file,
                        GError **error)
{
  g_autofree gchar *name = NULL;
  IdeGitVcs *self = (IdeGitVcs *)vcs;
  gboolean ret = FALSE;

  g_assert (IDE_IS_GIT_VCS (self));
  g_assert (G_IS_FILE (file));

  name = g_file_get_relative_path (self->working_directory, file);
  if (g_strcmp0 (name, ".git") == 0)
    return TRUE;

  if (name != NULL)
    return ggit_repository_path_is_ignored (self->repository, name, error);

  return ret;
}

static gboolean
compare_to_file (gconstpointer a,
                 gconstpointer b)
{
  GFile *file = (GFile *)a;
  GObject *item = (GObject *)b;

  /*
   * Our key (the GFile) is always @a.
   * The potential match (maybe a GbProjectFile) is @b.
   * @b may also be NULL.
   */

  g_assert (G_IS_FILE (file));
  g_assert (!item || G_IS_OBJECT (item));

  if (GB_IS_PROJECT_FILE (item))
    return g_file_equal (file, gb_project_file_get_file (GB_PROJECT_FILE (item)));

  return FALSE;
}

/**
 * ide_build_system_new_async:
 * @context: #IdeBuildSystem
 * @project_file: A #GFile containing the directory or project file.
 * @cancellable: (allow-none): A #GCancellable
 * @callback: A callback to execute upon completion
 * @user_data: User data for @callback.
 *
 * Asynchronously creates a new #IdeBuildSystem instance using the registered
 * #GIOExtensionPoint system. Each extension point will be tried asynchronously
 * by priority until one has been found that supports @project_file.
 *
 * If no build system could be found, then ide_build_system_new_finish() will
 * return %NULL.
 */
void
ide_build_system_new_async (IdeContext          *context,
                            GFile               *project_file,
                            GCancellable        *cancellable,
                            GAsyncReadyCallback  callback,
                            gpointer             user_data)
{
  g_return_if_fail (IDE_IS_CONTEXT (context));
  g_return_if_fail (G_IS_FILE (project_file));
  g_return_if_fail (!cancellable || G_IS_CANCELLABLE (cancellable));

  ide_object_new_for_extension_async (IDE_TYPE_BUILD_SYSTEM,
                                      sort_priority, NULL,
                                      G_PRIORITY_DEFAULT,
                                      cancellable,
                                      callback,
                                      user_data,
                                      "context", context,
                                      "project-file", project_file,
                                      NULL);
}

/**
 * ide_project_files_find_file:
 * @self: (in): A #IdeProjectFiles.
 * @file: A #GFile.
 *
 * Tries to locate an #IdeProjectFile matching the given file.
 * If @file is the working directory, @self is returned.
 *
 * Returns: (transfer none) (nullable): An #IdeProjectItem or %NULL.
 */
IdeProjectItem *
ide_project_files_find_file (IdeProjectFiles *self,
                             GFile           *file)
{
  IdeProjectItem *item;
  IdeContext *context;
  IdeVcs *vcs;
  GFile *workdir;
  gchar **parts;
  gchar *path;
  gsize i;

  g_return_val_if_fail (IDE_IS_PROJECT_FILES (self), NULL);
  g_return_val_if_fail (G_IS_FILE (file), NULL);

  item = IDE_PROJECT_ITEM (self);
  context = ide_object_get_context (IDE_OBJECT (self));
  vcs = ide_context_get_vcs (context);
  workdir = ide_vcs_get_working_directory (vcs);

  if (g_file_equal (workdir, file))
    return IDE_PROJECT_ITEM (self);

  path = g_file_get_relative_path (workdir, file);
  if (path == NULL)
    return NULL;

  parts = g_strsplit (path, G_DIR_SEPARATOR_S, 0);

  for (i = 0; parts [i]; i++)
    {
      if (!(item = ide_project_files_find_child (item, parts [i])))
        break;
    }

  g_strfreev (parts);
  g_free (path);

  return item;
}

/**
 * gimp_color_profile_combo_box_set_active_file:
 * @combo: a #GimpColorProfileComboBox
 * @file:  file of the profile to select
 * @label: label to use when adding a new entry (can be %NULL)
 *
 * Selects a color profile from the @combo and makes it the active
 * item.  If the profile is not listed in the @combo, then it is added
 * with the given @label (or @file in case that @label is %NULL).
 *
 * Since: 2.10
 **/
void
gimp_color_profile_combo_box_set_active_file (GimpColorProfileComboBox *combo,
                                              GFile                    *file,
                                              const gchar              *label)
{
  GimpColorProfile *profile = NULL;
  GtkTreeModel     *model;
  GtkTreeIter       iter;

  g_return_if_fail (GIMP_IS_COLOR_PROFILE_COMBO_BOX (combo));
  g_return_if_fail (file == NULL || G_IS_FILE (file));

  model = gtk_combo_box_get_model (GTK_COMBO_BOX (combo));

  if (file && ! (label && *label))
    {
      GError *error = NULL;

      profile = gimp_color_profile_new_from_file (file, &error);

      if (! profile)
        {
          g_message ("%s", error->message);
          g_clear_error (&error);
        }
      else
        {
          label = gimp_color_profile_get_label (profile);
        }
    }

  if (_gimp_color_profile_store_history_add (GIMP_COLOR_PROFILE_STORE (model),
                                             file, label, &iter))
    {
      gtk_combo_box_set_active_iter (GTK_COMBO_BOX (combo), &iter);
    }

  if (profile)
    g_object_unref (profile);
}

void
gedit_recent_remove_if_local (GFile *location)
{
    g_return_if_fail (G_IS_FILE (location));

    /* If a file is local chances are that if load/save fails the file has
     * beed removed and the failure is permanent so we remove it from the
     * list of recent files. For remote files the failure may be just
     * transitory and we keep the file in the list.
     */
    if (g_file_has_uri_scheme (location, "file"))
    {
        GtkRecentManager *recent_manager;
        gchar *uri;

        recent_manager = gtk_recent_manager_get_default ();

        uri = g_file_get_uri (location);
        gtk_recent_manager_remove_item (recent_manager, uri, NULL);
        g_free (uri);
    }
}

/**
 * gimp_config_serialize_to_gfile:
 * @config: a #GObject that implements the #GimpConfigInterface.
 * @file:   the #GFile to write the configuration to.
 * @header: optional file header (must be ASCII only)
 * @footer: optional file footer (must be ASCII only)
 * @data: user data passed to the serialize implementation.
 * @error: return location for a possible error
 *
 * Serializes the object properties of @config to the file specified
 * by @file. If a file with that name already exists, it is
 * overwritten. Basically this function opens @file for you and calls
 * the serialize function of the @config's #GimpConfigInterface.
 *
 * Return value: %TRUE if serialization succeeded, %FALSE otherwise.
 *
 * Since: 2.10
 **/
gboolean
gimp_config_serialize_to_gfile (GimpConfig   *config,
                                GFile        *file,
                                const gchar  *header,
                                const gchar  *footer,
                                gpointer      data,
                                GError      **error)
{
  GimpConfigWriter *writer;

  g_return_val_if_fail (GIMP_IS_CONFIG (config), FALSE);
  g_return_val_if_fail (G_IS_FILE (file), FALSE);
  g_return_val_if_fail (error == NULL || *error == NULL, FALSE);

  writer = gimp_config_writer_new_gfile (file, TRUE, header, error);
  if (!writer)
    return FALSE;

  GIMP_CONFIG_GET_INTERFACE (config)->serialize (config, writer, data);

  return gimp_config_writer_finish (writer, footer, error);
}

void
photos_glib_file_create_async (GFile *file,
                               GFileCreateFlags flags,
                               gint io_priority,
                               GCancellable *cancellable,
                               GAsyncReadyCallback callback,
                               gpointer user_data)
{
  g_autoptr (GTask) task = NULL;
  g_autoptr (PhotosGLibFileCreateData) data = NULL;

  g_return_if_fail (G_IS_FILE (file));
  g_return_if_fail (cancellable == NULL || G_IS_CANCELLABLE (cancellable));

  task = g_task_new (file, cancellable, callback, user_data);
  g_task_set_source_tag (task, photos_glib_file_create_async);

  data = photos_glib_file_create_data_new (file, flags, io_priority);
  g_task_set_task_data (task, g_steal_pointer (&data), (GDestroyNotify) photos_glib_file_create_data_free);

  g_file_create_async (file, flags, io_priority, cancellable, photos_glib_file_create_create, g_object_ref (task));
}

static gboolean
gtk_hotkey_key_file_registry_real_has_hotkey (GtkHotkeyRegistry	*base,
											const gchar			*app_id,
											const gchar			*key_id)
{
	GFile					*file;
	gboolean				exists;
	
	g_return_val_if_fail (app_id != NULL, FALSE);
	g_return_val_if_fail (key_id != NULL, FALSE);
	
	file = get_hotkey_file (app_id);
	g_return_val_if_fail (G_IS_FILE(file), FALSE);
	
	if (g_file_query_exists (file, NULL))
		exists = TRUE;
	else
		exists = FALSE;
	
	g_object_unref (file);
	return exists;
}

/**
 * empathy_tp_file_offer:
 * @self: an outgoing #EmpathyTpFile
 * @gfile: the source #GFile for the transfer
 * @cancellable: a #GCancellable
 * @progress_callback: function to callback with progress information
 * @progress_user_data: user_data to pass to @progress_callback
 * @op_callback: function to callback when the transfer ends
 * @op_user_data: user_data to pass to @op_callback
 *
 * Offers an outgoing file transfer, reading data from @gfile.
 * The callback @op_callback will be called both when the transfer is
 * successful and in case of an error. Note that cancelling @cancellable,
 * closes the socket of the file operation in progress, but doesn't
 * guarantee that the transfer channel will be closed as well. Thus,
 * empathy_tp_file_cancel() or empathy_tp_file_close() should be used to
 * actually cancel an ongoing #EmpathyTpFile.
 */
void
empathy_tp_file_offer (EmpathyTpFile *self,
    GFile *gfile,
    GCancellable *cancellable,
    EmpathyTpFileProgressCallback progress_callback,
    gpointer progress_user_data,
    EmpathyTpFileOperationCallback op_callback,
    gpointer op_user_data)
{
  g_return_if_fail (EMPATHY_IS_TP_FILE (self));
  g_return_if_fail (G_IS_FILE (gfile));
  g_return_if_fail (G_IS_CANCELLABLE (cancellable));

  self->priv->cancellable = g_object_ref (cancellable);
  self->priv->progress_callback = progress_callback;
  self->priv->progress_user_data = progress_user_data;
  self->priv->op_callback = op_callback;
  self->priv->op_user_data = op_user_data;

  g_file_read_async (gfile, G_PRIORITY_DEFAULT, cancellable,
      file_read_async_cb, self);
}

/**
 * empathy_ft_handler_incoming_set_destination:
 * @handler: an #EmpathyFTHandler
 * @destination: the #GFile where the transfer should be saved
 *
 * Sets the destination of the incoming handler to be @destination.
 * Note that calling this method is mandatory before starting the transfer
 * for incoming handlers.
 */
void
empathy_ft_handler_incoming_set_destination (EmpathyFTHandler *handler,
    GFile *destination)
{
  EmpathyFTHandlerPriv *priv;

  g_return_if_fail (EMPATHY_IS_FT_HANDLER (handler));
  g_return_if_fail (G_IS_FILE (destination));

  priv = GET_PRIV (handler);

  g_object_set (handler, "gfile", destination, NULL);

  /* check if hash is supported. if it isn't, set use_hash to FALSE
   * anyway, so that clients won't be expecting us to checksum.
   */
  if (EMP_STR_EMPTY (priv->content_hash) ||
      priv->content_hash_type == TP_FILE_HASH_TYPE_NONE)
    priv->use_hash = FALSE;
  else
    priv->use_hash = TRUE;
}

/*
 * what_failed_on_file_operation_failure:
 * @file: the file reference that failed.
 * @transient: %TRUE if this failure is likely to be permanent, i.e. a malformed
 * path. %FALSE if the action might succeed on subsequent attempts.
 * @what: indicates whether it was an open, save, or other operation that
 * failed.
 *
 * Helper function that picks a suitable error message describing what failed.
 * Based on code from Conglomerate.
 *
 * Returns: (transfer full): a newly-allocated string.
 */
static char *
what_failed_on_file_operation_failure(GFile *file, gboolean transient, I7FileErrorWhat what)
{
	char *displayname, *what_failed, *path;
	GFile *parent;

	g_return_val_if_fail(file || G_IS_FILE(file), NULL);

	displayname = file_get_display_name(file);

	parent = g_file_get_parent(file);
	path = g_file_get_path(parent);
	g_object_unref(parent);

	if(what == I7_FILE_ERROR_OTHER) {
		/* Generic file error */
		what_failed = g_strdup_printf(_("Inform got an error while accessing \"%s\" from %s."), displayname, path);
	} else if(transient) {
		/* A "what failed" message when the failure is likely to be
		permanent; this URI won't be accessible */
		if(what == I7_FILE_ERROR_OPEN)
			what_failed = g_strdup_printf(_("Inform cannot read \"%s\" from %s."), displayname, path);
		else
			what_failed = g_strdup_printf(_("Inform cannot save \"%s\" to %s."), displayname, path);
	} else {
		/* A "what failed" message when the failure is likely to be
		transient; this URI might be accessible on subsequent attempts, or
		with some troubleshooting. */
		if(what == I7_FILE_ERROR_OPEN)
			what_failed = g_strdup_printf(_("Inform could not read \"%s\" from %s."), displayname, path);
		else
			what_failed = g_strdup_printf(_("Inform could not save \"%s\" to %s."), displayname, path);
	}

	g_free(path);
	g_free(displayname);

	return what_failed;
}

static void
photos_glib_file_copy_create (GObject *source_object, GAsyncResult *res, gpointer user_data)
{
  GCancellable *cancellable;
  g_autoptr (GFile) unique_file = NULL;
  GFile *destination = G_FILE (source_object);
  GFile *source;
  g_autoptr (GFileOutputStream) ostream = NULL;
  g_autoptr (GTask) task = G_TASK (user_data);
  PhotosGLibFileCopyData *data;

  cancellable = g_task_get_cancellable (task);
  data = (PhotosGLibFileCopyData *) g_task_get_task_data (task);
  source = G_FILE (g_task_get_source_object (task));

  {
    g_autoptr (GError) error = NULL;

    ostream = photos_glib_file_create_finish (destination, res, &unique_file, &error);
    if (error != NULL)
      {
        g_task_return_error (task, g_steal_pointer (&error));
        goto out;
      }
  }

  g_assert_null (data->ostream);
  g_assert_true (G_IS_FILE_OUTPUT_STREAM (ostream));
  data->ostream = g_object_ref (ostream);

  g_assert_null (data->unique_file);
  g_assert_true (G_IS_FILE (unique_file));
  data->unique_file = g_object_ref (unique_file);

  g_file_read_async (source, data->io_priority, cancellable, photos_glib_file_copy_read, g_object_ref (task));

 out:
  return;
}

gboolean
xml_reader_load_from_file (XmlReader     *reader,
                           GFile         *file,
                           GCancellable  *cancellable,
                           GError       **error)
{
  GFileInputStream *stream;
  gboolean ret;

  g_return_val_if_fail (XML_IS_READER (reader), FALSE);
  g_return_val_if_fail (G_IS_FILE (file), FALSE);
  g_return_val_if_fail (!cancellable || G_IS_CANCELLABLE (cancellable), FALSE);

  if (!(stream = g_file_read (file, cancellable, error)))
    return FALSE;

  ret = xml_reader_load_from_stream (reader, G_INPUT_STREAM (stream), error);

  g_clear_object (&stream);

  return ret;
}

GList *
gimp_pattern_load_pixbuf (GimpContext   *context,
                          GFile         *file,
                          GInputStream  *input,
                          GError       **error)
{
  GimpPattern *pattern;
  GdkPixbuf   *pixbuf;
  gchar       *name;

  g_return_val_if_fail (G_IS_FILE (file), NULL);
  g_return_val_if_fail (G_IS_INPUT_STREAM (input), NULL);
  g_return_val_if_fail (error == NULL || *error == NULL, NULL);

  pixbuf = gdk_pixbuf_new_from_stream (input, NULL, error);
  if (! pixbuf)
    return NULL;

  name = g_strdup (gdk_pixbuf_get_option (pixbuf, "tEXt::Title"));

  if (! name)
    name = g_strdup (gdk_pixbuf_get_option (pixbuf, "tEXt::Comment"));

  if (! name)
    name = g_path_get_basename (gimp_file_get_utf8_name (file));

  pattern = g_object_new (GIMP_TYPE_PATTERN,
                          "name",      name,
                          "mime-type", NULL, /* FIXME!! */
                          NULL);
  g_free (name);

  pattern->mask = gimp_temp_buf_new_from_pixbuf (pixbuf, NULL);

  g_object_unref (pixbuf);

  return g_list_prepend (NULL, pattern);
}