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108 lines
4.6 KiB
C
108 lines
4.6 KiB
C
/* ATK - Accessibility Toolkit
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* Copyright 2001 Sun Microsystems 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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __ATK_STREAMABLE_CONTENT_H__
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#define __ATK_STREAMABLE_CONTENT_H__
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#include <atk/atkobject.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#define ATK_TYPE_STREAMABLE_CONTENT (atk_streamable_content_get_type ())
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#define ATK_IS_STREAMABLE_CONTENT(obj) G_TYPE_CHECK_INSTANCE_TYPE ((obj), ATK_TYPE_STREAMABLE_CONTENT)
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#define ATK_STREAMABLE_CONTENT(obj) G_TYPE_CHECK_INSTANCE_CAST ((obj), ATK_TYPE_STREAMABLE_CONTENT, AtkStreamableContent)
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#define ATK_STREAMABLE_CONTENT_GET_IFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), ATK_TYPE_STREAMABLE_CONTENT, AtkStreamableContentIface))
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#ifndef _TYPEDEF_ATK_STREAMABLE_CONTENT
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#define _TYPEDEF_ATK_STREAMABLE_CONTENT
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typedef struct _AtkStreamableContent AtkStreamableContent;
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#endif
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typedef struct _AtkStreamableContentIface AtkStreamableContentIface;
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struct _AtkStreamableContentIface
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{
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GTypeInterface parent;
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/*
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* Get the number of mime types supported by this object
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*/
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gint (* get_n_mime_types) (AtkStreamableContent *streamable);
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/*
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* Gets the specified mime type supported by this object.
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* The mime types are 0-based so the first mime type is
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* at index 0, the second at index 1 and so on. The mime-type
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* at index 0 should be considered the "default" data type for the stream.
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*
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* This assumes that the strings for the mime types are stored in the
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* AtkStreamableContent. Alternatively the G_CONST_RETURN could be removed
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* and the caller would be responsible for calling g_free() on the
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* returned value.
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*/
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G_CONST_RETURN gchar* (* get_mime_type) (AtkStreamableContent *streamable,
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gint i);
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/*
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* One possible implementation for this method is that it constructs the
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* content appropriate for the mime type and then creates a temporary
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* file containing the content, opens the file and then calls
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* g_io_channel_unix_new_fd().
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*/
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GIOChannel* (* get_stream) (AtkStreamableContent *streamable,
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const gchar *mime_type);
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/*
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* Returns a string representing a URI in IETF standard format
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* (see http://www.ietf.org/rfc/rfc2396.txt) from which the object's content
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* may be streamed in the specified mime-type.
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* If mime_type is NULL, the URI for the default (and possibly only) mime-type is
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* returned.
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*
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* returns NULL if the mime-type is not supported, or if no URI can be
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* constructed. Note that it is possible for get_uri to return NULL but for
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* get_stream to work nonetheless, since not all GIOChannels connect to URIs.
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*/
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G_CONST_RETURN gchar* (* get_uri) (AtkStreamableContent *streamable,
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const gchar *mime_type);
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AtkFunction pad1;
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AtkFunction pad2;
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AtkFunction pad3;
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};
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GType atk_streamable_content_get_type (void);
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gint atk_streamable_content_get_n_mime_types (AtkStreamableContent *streamable);
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G_CONST_RETURN gchar* atk_streamable_content_get_mime_type (AtkStreamableContent *streamable,
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gint i);
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GIOChannel* atk_streamable_content_get_stream (AtkStreamableContent *streamable,
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const gchar *mime_type);
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gchar* atk_streamable_content_get_uri (AtkStreamableContent *streamable,
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const gchar *mime_type);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __ATK_STREAMABLE_CONTENT_H__ */
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