other-licenses/atk-1.0/atk/atkstreamablecontent.h

Tue, 06 Jan 2015 21:39:09 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Tue, 06 Jan 2015 21:39:09 +0100
branch
TOR_BUG_9701
changeset 8
97036ab72558
permissions
-rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

     1 /* ATK -  Accessibility Toolkit
     2  * Copyright 2001 Sun Microsystems Inc.
     3  *
     4  * This library is free software; you can redistribute it and/or
     5  * modify it under the terms of the GNU Library General Public
     6  * License as published by the Free Software Foundation; either
     7  * version 2 of the License, or (at your option) any later version.
     8  *
     9  * This library is distributed in the hope that it will be useful,
    10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    12  * Library General Public License for more details.
    13  *
    14  * You should have received a copy of the GNU Library General Public
    15  * License along with this library; if not, write to the
    16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    17  * Boston, MA 02111-1307, USA.
    18  */
    20 #ifndef __ATK_STREAMABLE_CONTENT_H__
    21 #define __ATK_STREAMABLE_CONTENT_H__
    23 #include <atk/atkobject.h>
    25 #ifdef __cplusplus
    26 extern "C" {
    27 #endif /* __cplusplus */
    29 #define ATK_TYPE_STREAMABLE_CONTENT           (atk_streamable_content_get_type ())
    30 #define ATK_IS_STREAMABLE_CONTENT(obj)        G_TYPE_CHECK_INSTANCE_TYPE ((obj), ATK_TYPE_STREAMABLE_CONTENT)
    31 #define ATK_STREAMABLE_CONTENT(obj)           G_TYPE_CHECK_INSTANCE_CAST ((obj), ATK_TYPE_STREAMABLE_CONTENT, AtkStreamableContent)
    32 #define ATK_STREAMABLE_CONTENT_GET_IFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), ATK_TYPE_STREAMABLE_CONTENT, AtkStreamableContentIface))
    34 #ifndef _TYPEDEF_ATK_STREAMABLE_CONTENT
    35 #define _TYPEDEF_ATK_STREAMABLE_CONTENT
    36 typedef struct _AtkStreamableContent AtkStreamableContent;
    37 #endif
    38 typedef struct _AtkStreamableContentIface AtkStreamableContentIface;
    40 struct _AtkStreamableContentIface
    41 {
    42   GTypeInterface parent;
    44   /*
    45    * Get the number of mime types supported by this object
    46    */
    47   gint                      (* get_n_mime_types)  (AtkStreamableContent     *streamable);
    48   /*
    49    * Gets the specified mime type supported by this object.
    50    * The mime types are 0-based so the first mime type is 
    51    * at index 0, the second at index 1 and so on.  The mime-type
    52    * at index 0 should be considered the "default" data type for the stream.
    53    *
    54    * This assumes that the strings for the mime types are stored in the
    55    * AtkStreamableContent. Alternatively the G_CONST_RETURN could be removed
    56    * and the caller would be responsible for calling g_free() on the
    57    * returned value.
    58    */
    59   G_CONST_RETURN gchar*     (* get_mime_type)     (AtkStreamableContent     *streamable,
    60                                                    gint                     i);
    61   /*
    62    * One possible implementation for this method is that it constructs the
    63    * content appropriate for the mime type and then creates a temporary
    64    * file containing the content, opens the file and then calls
    65    * g_io_channel_unix_new_fd().
    66    */
    67   GIOChannel*               (* get_stream)        (AtkStreamableContent     *streamable,
    68                                                    const gchar              *mime_type);
    70 /*
    71  * Returns a string representing a URI in IETF standard format
    72  * (see http://www.ietf.org/rfc/rfc2396.txt) from which the object's content
    73  * may be streamed in the specified mime-type.
    74  * If mime_type is NULL, the URI for the default (and possibly only) mime-type is
    75  * returned.
    76  *
    77  * returns NULL if the mime-type is not supported, or if no URI can be 
    78  * constructed.  Note that it is possible for get_uri to return NULL but for
    79  * get_stream to work nonetheless, since not all GIOChannels connect to URIs.
    80  */
    81     G_CONST_RETURN  gchar*  (* get_uri)           (AtkStreamableContent     *streamable,
    82                                                    const gchar              *mime_type);
    85   AtkFunction               pad1;
    86   AtkFunction               pad2;
    87   AtkFunction               pad3;
    88 };
    89 GType                  atk_streamable_content_get_type (void);
    91 gint                   atk_streamable_content_get_n_mime_types (AtkStreamableContent     *streamable);
    93 G_CONST_RETURN gchar*  atk_streamable_content_get_mime_type    (AtkStreamableContent     *streamable,
    94                                                                 gint                     i);
    95 GIOChannel*             atk_streamable_content_get_stream       (AtkStreamableContent     *streamable,
    96                                                                  const gchar              *mime_type);
    98 gchar*                  atk_streamable_content_get_uri          (AtkStreamableContent     *streamable,
    99                                                                  const gchar              *mime_type);
   102 #ifdef __cplusplus
   103 }
   104 #endif /* __cplusplus */
   107 #endif /* __ATK_STREAMABLE_CONTENT_H__ */

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