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Merged in default (pull request #669)
2020-02-14, Gary Kramlich
90be91762626
Merged in default (pull request #669)
Shrink the delta from PR 666
Approved-by: Gary Kramlich
Approved-by: Elliott Sales de Andrade
/* purple
*
* Purple is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* This program 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.
*
* This program 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., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*/
#include
"image-store.h"
#include
"eventloop.h"
#include
"util.h"
#define TEMP_IMAGE_TIMEOUT 5
static
GHashTable
*
id_to_image
=
NULL
;
static
guint
last_id
=
0
;
/* keys: timeout handle */
static
GHashTable
*
temp_images
=
NULL
;
/* keys: img id */
static
GSList
*
perm_images
=
NULL
;
static
void
image_reset_id
(
gpointer
_id
)
{
g_return_if_fail
(
id_to_image
!=
NULL
);
g_hash_table_remove
(
id_to_image
,
_id
);
}
static
guint
image_set_id
(
PurpleImage
*
image
)
{
/* Use the next unused id number. We do it in a loop on the off chance
* that next id wraps back around to 0 and the hash table still contains
* entries from the first time around.
*/
while
(
TRUE
)
{
last_id
++
;
if
(
G_UNLIKELY
(
last_id
==
0
))
continue
;
if
(
purple_image_store_get
(
last_id
)
==
NULL
)
break
;
}
g_object_set_data_full
(
G_OBJECT
(
image
),
"purple-image-store-id"
,
GINT_TO_POINTER
(
last_id
),
image_reset_id
);
g_hash_table_insert
(
id_to_image
,
GINT_TO_POINTER
(
last_id
),
image
);
return
last_id
;
}
static
guint
image_get_id
(
PurpleImage
*
image
)
{
return
GPOINTER_TO_INT
(
g_object_get_data
(
G_OBJECT
(
image
),
"purple-image-store-id"
));
}
guint
purple_image_store_add
(
PurpleImage
*
image
)
{
guint
id
;
g_return_val_if_fail
(
PURPLE_IS_IMAGE
(
image
),
0
);
id
=
image_get_id
(
image
);
if
(
id
>
0
)
return
id
;
id
=
image_set_id
(
image
);
g_object_ref
(
image
);
perm_images
=
g_slist_prepend
(
perm_images
,
image
);
return
id
;
}
guint
purple_image_store_add_weak
(
PurpleImage
*
image
)
{
guint
id
;
g_return_val_if_fail
(
PURPLE_IS_IMAGE
(
image
),
0
);
id
=
image_get_id
(
image
);
if
(
id
>
0
)
return
id
;
return
image_set_id
(
image
);
}
static
gboolean
remove_temporary
(
gpointer
_image
)
{
PurpleImage
*
image
=
_image
;
guint
handle
;
handle
=
GPOINTER_TO_INT
(
g_object_get_data
(
G_OBJECT
(
image
),
"purple-image-store-handle"
));
g_hash_table_remove
(
temp_images
,
GINT_TO_POINTER
(
handle
));
return
G_SOURCE_REMOVE
;
}
static
void
cancel_temporary
(
gpointer
key
,
gpointer
value
,
gpointer
_unused
)
{
g_source_remove
(
GPOINTER_TO_INT
(
key
));
}
guint
purple_image_store_add_temporary
(
PurpleImage
*
image
)
{
guint
id
;
guint
handle
;
g_return_val_if_fail
(
PURPLE_IS_IMAGE
(
image
),
0
);
id
=
image_get_id
(
image
);
/* XXX: add_temporary doesn't extend previous temporary call, sorry */
if
(
id
>
0
)
return
id
;
id
=
image_set_id
(
image
);
g_object_ref
(
image
);
handle
=
g_timeout_add_seconds
(
TEMP_IMAGE_TIMEOUT
,
remove_temporary
,
image
);
g_object_set_data
(
G_OBJECT
(
image
),
"purple-image-store-handle"
,
GINT_TO_POINTER
(
handle
));
g_hash_table_insert
(
temp_images
,
GINT_TO_POINTER
(
handle
),
image
);
return
id
;
}
PurpleImage
*
purple_image_store_get
(
guint
id
)
{
return
g_hash_table_lookup
(
id_to_image
,
GINT_TO_POINTER
(
id
));
}
/* TODO: handle PURPLE_IMAGE_STORE_STOCK_PROTOCOL */
PurpleImage
*
purple_image_store_get_from_uri
(
const
gchar
*
uri
)
{
guint64
longid
;
guint
id
;
gchar
*
endptr
;
gchar
endchar
;
g_return_val_if_fail
(
uri
!=
NULL
,
NULL
);
if
(
!
g_str_has_prefix
(
uri
,
PURPLE_IMAGE_STORE_PROTOCOL
))
{
return
NULL
;
}
uri
+=
sizeof
(
PURPLE_IMAGE_STORE_PROTOCOL
)
-
1
;
if
(
uri
[
0
]
==
'-'
)
return
NULL
;
longid
=
g_ascii_strtoull
(
uri
,
&
endptr
,
10
);
endchar
=
endptr
[
0
];
if
(
endchar
!=
'\0'
&&
endchar
!=
'"'
&&
endchar
!=
'\''
&&
endchar
!=
' '
)
{
return
NULL
;
}
id
=
longid
;
if
(
id
!=
longid
)
return
NULL
;
return
purple_image_store_get
(
id
);
}
gchar
*
purple_image_store_get_uri
(
PurpleImage
*
image
)
{
const
gchar
*
path
;
guint
img_id
;
g_return_val_if_fail
(
PURPLE_IS_IMAGE
(
image
),
NULL
);
path
=
purple_image_get_path
(
image
);
if
(
path
)
return
g_filename_to_uri
(
path
,
NULL
,
NULL
);
img_id
=
purple_image_store_add_weak
(
image
);
return
g_strdup_printf
(
PURPLE_IMAGE_STORE_PROTOCOL
"%u"
,
img_id
);
}
void
_purple_image_store_init
(
void
)
{
id_to_image
=
g_hash_table_new
(
g_direct_hash
,
g_direct_equal
);
temp_images
=
g_hash_table_new_full
(
g_direct_hash
,
g_direct_equal
,
NULL
,
g_object_unref
);
}
void
_purple_image_store_uninit
(
void
)
{
g_slist_free_full
(
perm_images
,
g_object_unref
);
perm_images
=
NULL
;
g_hash_table_foreach
(
temp_images
,
cancel_temporary
,
NULL
);
g_hash_table_destroy
(
temp_images
);
temp_images
=
NULL
;
g_hash_table_destroy
(
id_to_image
);
id_to_image
=
NULL
;
}