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95ecfc8ea0
The traditional include guards are not as easy to handle and require extra thought into the names. Pragma once is an easier, more contributor friendly approach. Closes https://gitlab.gnome.org/GNOME/nautilus/issues/294 general: Remove include guards in favor of pragma once The traditional include guards are not as easy to handle and require extra thought into the names. Pragma once is an easier, more contributor friendly approach. Closes https://gitlab.gnome.org/GNOME/nautilus/issues/294
126 lines
5.3 KiB
C
126 lines
5.3 KiB
C
/*
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* nautilus-info-provider.h - Interface for Nautilus extensions that
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* provide info about files.
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*
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* Copyright (C) 2003 Novell, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*
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* Author: Dave Camp <dave@ximian.com>
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*
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*/
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/* This interface is implemented by Nautilus extensions that want to
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* provide information about files. Extensions are called when Nautilus
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* needs information about a file. They are passed a NautilusFileInfo
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* object which should be filled with relevant information */
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#pragma once
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#if !defined (NAUTILUS_EXTENSION_H) && !defined (NAUTILUS_COMPILATION)
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#warning "Only <nautilus-extension.h> should be included directly."
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#endif
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#include <glib-object.h>
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#include "nautilus-file-info.h"
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/* This should be removed at some point. */
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#include "nautilus-extension-types.h"
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G_BEGIN_DECLS
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#define NAUTILUS_TYPE_INFO_PROVIDER (nautilus_info_provider_get_type ())
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G_DECLARE_INTERFACE (NautilusInfoProvider, nautilus_info_provider,
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NAUTILUS, INFO_PROVIDER,
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GObject)
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/* For compatibility reasons, remove this once you start introducing breaking changes. */
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typedef NautilusInfoProviderInterface NautilusInfoProviderIface;
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/**
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* NautilusOperationHandle:
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*
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* Handle for asynchronous interfaces. These are opaque handles that must
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* be unique within an extension object. These are returned by operations
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* that return #NAUTILUS_OPERATION_IN_PROGRESS.
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*/
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typedef struct _NautilusOperationHandle NautilusOperationHandle;
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/**
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* NautilusOperationResult:
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* @NAUTILUS_OPERATION_COMPLETE: the operation succeeded, and the extension
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* is done with the request.
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* @NAUTILUS_OPERATION_FAILED: the operation failed.
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* @NAUTILUS_OPERATION_IN_PROGRESS: the extension has begin an async operation.
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* When this value is returned, the extension must set the handle parameter
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* and call the callback closure when the operation is complete.
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*
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* Return values for asynchronous operations performed by the extension.
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* See nautilus_info_provider_update_file_info().
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*/
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typedef enum
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{
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/* Returned if the call succeeded, and the extension is done
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* with the request */
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NAUTILUS_OPERATION_COMPLETE,
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/* Returned if the call failed */
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NAUTILUS_OPERATION_FAILED,
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/* Returned if the extension has begun an async operation.
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* If this is returned, the extension must set the handle
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* parameter and call the callback closure when the
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* operation is complete. */
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NAUTILUS_OPERATION_IN_PROGRESS
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} NautilusOperationResult;
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/**
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* NautilusInfoProviderInterface:
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* @g_iface: The parent interface.
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* @update_file_info: Returns a #NautilusOperationResult.
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* See nautilus_info_provider_update_file_info() for details.
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* @cancel_update: Cancels a previous call to nautilus_info_provider_update_file_info().
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* See nautilus_info_provider_cancel_update() for details.
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*
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* Interface for extensions to provide additional information about files.
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*/
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struct _NautilusInfoProviderInterface
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{
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GTypeInterface g_iface;
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NautilusOperationResult (*update_file_info) (NautilusInfoProvider *provider,
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NautilusFileInfo *file,
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GClosure *update_complete,
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NautilusOperationHandle **handle);
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void (*cancel_update) (NautilusInfoProvider *provider,
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NautilusOperationHandle *handle);
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};
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/* Interface Functions */
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NautilusOperationResult nautilus_info_provider_update_file_info (NautilusInfoProvider *provider,
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NautilusFileInfo *file,
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GClosure *update_complete,
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NautilusOperationHandle **handle);
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void nautilus_info_provider_cancel_update (NautilusInfoProvider *provider,
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NautilusOperationHandle *handle);
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/* Helper functions for implementations */
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void nautilus_info_provider_update_complete_invoke (GClosure *update_complete,
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NautilusInfoProvider *provider,
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NautilusOperationHandle *handle,
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NautilusOperationResult result);
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G_END_DECLS |