pidgin/pidgin

Merged in fbellet/pidgin/port-changes-from-branch-2.x.y-to-default (pull request #632)

2020-02-04, Gary Kramlich
bba8505129d5
Merged in fbellet/pidgin/port-changes-from-branch-2.x.y-to-default (pull request #632)

Port changes from branch 2.x.y to default

Approved-by: Eion Robb
Approved-by: John Bailey
Approved-by: Gary Kramlich
/* 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
*/
#ifndef PURPLE_BUDDYICON_H
#define PURPLE_BUDDYICON_H
/**
* SECTION:buddyicon
* @section_id: libpurple-buddyicon
* @short_description: <filename>buddyicon.h</filename>
* @title: Buddy Icon API
*/
#define PURPLE_TYPE_BUDDY_ICON (purple_buddy_icon_get_type())
/**
* PurpleBuddyIcon:
*
* An opaque structure representing a buddy icon for a particular user on a
* particular #PurpleAccount. Instances are reference-counted; use
* purple_buddy_icon_ref() and purple_buddy_icon_unref() to take and release
* references.
*/
typedef struct _PurpleBuddyIcon PurpleBuddyIcon;
#define PURPLE_TYPE_BUDDY_ICON_SPEC (purple_buddy_icon_spec_get_type())
typedef struct _PurpleBuddyIconSpec PurpleBuddyIconSpec;
#include "account.h"
#include "buddylist.h"
#include "image.h"
#include "protocols.h"
#include "util.h"
/**
* PurpleBuddyIconScaleFlags:
* @PURPLE_ICON_SCALE_DISPLAY: We scale the icon when we display it
* @PURPLE_ICON_SCALE_SEND: We scale the icon before we send it to the server
*/
typedef enum /*< flags >*/
{
PURPLE_ICON_SCALE_DISPLAY = 0x01,
PURPLE_ICON_SCALE_SEND = 0x02
} PurpleBuddyIconScaleFlags;
/**
* PurpleBuddyIconSpec:
* @format: This is a comma-delimited list of image formats or %NULL if icons
* are not supported. Neither the core nor the protocol will actually
* check to see if the data it's given matches this; it's entirely up
* to the UI to do what it wants
* @min_width: Minimum width of this icon
* @min_height: Minimum height of this icon
* @max_width: Maximum width of this icon
* @max_height: Maximum height of this icon
* @max_filesize: Maximum size in bytes
* @scale_rules: How to stretch this icon
*
* A description of a Buddy Icon specification. This tells Purple what kind of
* image file it should give a protocol, and what kind of image file it should
* expect back. Dimensions less than 1 should be ignored and the image not
* scaled.
*/
struct _PurpleBuddyIconSpec {
char *format;
int min_width;
int min_height;
int max_width;
int max_height;
size_t max_filesize;
PurpleBuddyIconScaleFlags scale_rules;
};
G_BEGIN_DECLS
/**************************************************************************/
/* Buddy Icon API */
/**************************************************************************/
/**
* purple_buddy_icon_get_type:
*
* Returns: The #GType for the #PurpleBuddyIcon boxed structure.
*/
GType purple_buddy_icon_get_type(void);
/**
* purple_buddy_icon_new:
* @account: The account the user is on.
* @username: The username the icon belongs to.
* @icon_data: The buddy icon data.
* @icon_len: The buddy icon length.
* @checksum: A protocol checksum from the protocol or %NULL.
*
* Creates a new buddy icon structure and populates it.
*
* If an icon for this account+username already exists, you'll get a reference
* to that structure, which will have been updated with the data supplied.
*
* Returns: The buddy icon structure, with a reference for the caller.
*/
PurpleBuddyIcon *purple_buddy_icon_new(PurpleAccount *account, const char *username,
void *icon_data, size_t icon_len,
const char *checksum);
/**
* purple_buddy_icon_ref:
* @icon: The buddy icon.
*
* Increments the reference count on a buddy icon.
*
* Returns: @icon.
*/
PurpleBuddyIcon *purple_buddy_icon_ref(PurpleBuddyIcon *icon);
/**
* purple_buddy_icon_unref:
* @icon: The buddy icon.
*
* Decrements the reference count on a buddy icon.
*
* If the reference count reaches 0, the icon will be destroyed.
*/
void purple_buddy_icon_unref(PurpleBuddyIcon *icon);
/**
* purple_buddy_icon_update:
* @icon: The buddy icon.
*
* Updates every instance of this icon.
*/
void purple_buddy_icon_update(PurpleBuddyIcon *icon);
/**
* purple_buddy_icon_set_data:
* @icon: The buddy icon.
* @data: The buddy icon data, which the buddy icon code
* takes ownership of and will free.
* @len: The length of the data in @a data.
* @checksum: A protocol checksum from the protocol or %NULL.
*
* Sets the buddy icon's data.
*/
void
purple_buddy_icon_set_data(PurpleBuddyIcon *icon, guchar *data,
size_t len, const char *checksum);
/**
* purple_buddy_icon_get_account:
* @icon: The buddy icon.
*
* Returns the buddy icon's account.
*
* Returns: (transfer none): The account.
*/
PurpleAccount *purple_buddy_icon_get_account(const PurpleBuddyIcon *icon);
/**
* purple_buddy_icon_get_username:
* @icon: The buddy icon.
*
* Returns the buddy icon's username.
*
* Returns: The username.
*/
const char *purple_buddy_icon_get_username(const PurpleBuddyIcon *icon);
/**
* purple_buddy_icon_get_checksum:
* @icon: The buddy icon.
*
* Returns the buddy icon's checksum.
*
* This function is really only for protocol use.
*
* Returns: The checksum.
*/
const char *purple_buddy_icon_get_checksum(const PurpleBuddyIcon *icon);
/**
* purple_buddy_icon_get_data:
* @icon: The buddy icon.
* @len: If not %NULL, the length of the icon data returned will be
* set in the location pointed to by this.
*
* Returns the buddy icon's data.
*
* Returns: A pointer to the icon data.
*/
gconstpointer purple_buddy_icon_get_data(const PurpleBuddyIcon *icon, size_t *len);
/**
* purple_buddy_icon_get_extension:
* @icon: The buddy icon.
*
* Returns an extension corresponding to the buddy icon's file type.
*
* Returns: The icon's extension, "icon" if unknown, or %NULL if
* the image data has disappeared.
*/
const char *purple_buddy_icon_get_extension(const PurpleBuddyIcon *icon);
/**
* purple_buddy_icon_get_full_path:
* @icon: The buddy icon
*
* Returns a full path to an icon.
*
* If the icon has data and the file exists in the cache, this will return
* a full path to the cache file.
*
* In general, it is not appropriate to be poking in the icon cache
* directly. If you find yourself wanting to use this function, think
* very long and hard about it, and then don't.
*
* Returns: (transfer none): A full path to the file, or %NULL under various conditions.
*/
const gchar *
purple_buddy_icon_get_full_path(PurpleBuddyIcon *icon);
/**************************************************************************/
/* Buddy Icon Subsystem API */
/**************************************************************************/
/**
* purple_buddy_icons_set_for_user:
* @account: The account the user is on.
* @username: The username of the user.
* @icon_data: The buddy icon data, which the buddy icon code
* takes ownership of and will free.
* @icon_len: The length of the icon data.
* @checksum: A protocol checksum from the protocol or %NULL.
*
* Sets a buddy icon for a user.
*/
void
purple_buddy_icons_set_for_user(PurpleAccount *account, const char *username,
void *icon_data, size_t icon_len,
const char *checksum);
/**
* purple_buddy_icons_get_checksum_for_user:
* @buddy: The buddy
*
* Returns the checksum for the buddy icon of a specified buddy.
*
* This avoids loading the icon image data from the cache if it's
* not already loaded for some other reason.
*
* Returns: The checksum.
*/
const char *
purple_buddy_icons_get_checksum_for_user(PurpleBuddy *buddy);
/**
* purple_buddy_icons_find:
* @account: The account the user is on.
* @username: The username of the user.
*
* Returns the buddy icon information for a user.
*
* Returns: The icon (with a reference for the caller) if found, or %NULL if
* not found.
*/
PurpleBuddyIcon *
purple_buddy_icons_find(PurpleAccount *account, const char *username);
/**
* purple_buddy_icons_find_account_icon:
* @account: The account
*
* Returns the buddy icon image for an account.
*
* This function deals with loading the icon from the cache, if
* needed, so it should be called in any case where you want the
* appropriate icon.
*
* Returns: (transfer full): The account's buddy icon image.
*/
PurpleImage *
purple_buddy_icons_find_account_icon(PurpleAccount *account);
/**
* purple_buddy_icons_set_account_icon:
* @account: The account for which to set a custom icon.
* @icon_data: The image data of the icon, which the
* buddy icon code will free.
* @icon_len: The length of the data in @icon_data.
*
* Sets a buddy icon for an account.
*
* This function will deal with saving a record of the icon,
* caching the data, etc.
*
* Returns: (transfer none): The icon that was set.
*/
PurpleImage *
purple_buddy_icons_set_account_icon(PurpleAccount *account,
guchar *icon_data, size_t icon_len);
/**
* purple_buddy_icons_get_account_icon_timestamp:
* @account: The account
*
* Returns the timestamp of when the icon was set.
*
* This is intended for use in protocols that require a timestamp for
* buddy icon update reasons.
*
* Returns: The time the icon was set, or 0 if an error occurred.
*/
time_t
purple_buddy_icons_get_account_icon_timestamp(PurpleAccount *account);
/**
* purple_buddy_icons_node_has_custom_icon:
* @node: The blist node.
*
* Returns a boolean indicating if a given blist node has a custom buddy icon.
*
* Returns: A boolean indicating if @node has a custom buddy icon.
*/
gboolean
purple_buddy_icons_node_has_custom_icon(PurpleBlistNode *node);
/**
* purple_buddy_icons_node_find_custom_icon:
* @node: The node.
*
* Returns the custom buddy icon image for a blist node.
*
* This function deals with loading the icon from the cache, if
* needed, so it should be called in any case where you want the
* appropriate icon.
*
* Returns: (transfer full): The custom buddy icon.
*/
PurpleImage *
purple_buddy_icons_node_find_custom_icon(PurpleBlistNode *node);
/**
* purple_buddy_icons_node_set_custom_icon:
* @node: The blist node for which to set a custom icon.
* @icon_data: The image data of the icon, which the buddy icon code will
* free. Use NULL to unset the icon.
* @icon_len: The length of the data in @icon_data.
*
* Sets a custom buddy icon for a blist node.
*
* This function will deal with saving a record of the icon, caching the data,
* etc.
*
* Returns: (transfer none): The icon that was set.
*/
PurpleImage *
purple_buddy_icons_node_set_custom_icon(PurpleBlistNode *node,
guchar *icon_data, size_t icon_len);
/**
* purple_buddy_icons_node_set_custom_icon_from_file:
* @node: The blist node for which to set a custom icon.
* @filename: The path to the icon to set for the blist node. Use NULL
* to unset the custom icon.
*
* Sets a custom buddy icon for a blist node.
*
* Convenience wrapper around purple_buddy_icons_node_set_custom_icon.
* See purple_buddy_icons_node_set_custom_icon().
*
* Returns: (transfer none): The icon that was set.
*/
PurpleImage *
purple_buddy_icons_node_set_custom_icon_from_file(PurpleBlistNode *node,
const gchar *filename);
/**
* purple_buddy_icons_set_caching:
* @caching: TRUE if buddy icon caching should be enabled, or
* FALSE otherwise.
*
* Sets whether or not buddy icon caching is enabled.
*/
void purple_buddy_icons_set_caching(gboolean caching);
/**
* purple_buddy_icons_is_caching:
*
* Returns whether or not buddy icon caching should be enabled.
*
* The default is TRUE, unless otherwise specified by
* purple_buddy_icons_set_caching().
*
* Returns: TRUE if buddy icon caching is enabled, or FALSE otherwise.
*/
gboolean purple_buddy_icons_is_caching(void);
/**
* purple_buddy_icons_set_cache_dir:
* @cache_dir: The directory to store buddy icon cache files to.
*
* Sets the directory used to store buddy icon cache files.
*/
void purple_buddy_icons_set_cache_dir(const char *cache_dir);
/**
* purple_buddy_icons_get_cache_dir:
*
* Returns the directory used to store buddy icon cache files.
*
* The default directory is PURPLEDIR/icons, unless otherwise specified
* by purple_buddy_icons_set_cache_dir().
*
* Returns: The directory to store buddy icon cache files to.
*/
const char *purple_buddy_icons_get_cache_dir(void);
/**
* purple_buddy_icons_get_handle:
*
* Returns the buddy icon subsystem handle.
*
* Returns: The subsystem handle.
*/
void *purple_buddy_icons_get_handle(void);
/**
* purple_buddy_icons_init:
*
* Initializes the buddy icon subsystem.
*/
void purple_buddy_icons_init(void);
/**
* purple_buddy_icons_uninit:
*
* Uninitializes the buddy icon subsystem.
*/
void purple_buddy_icons_uninit(void);
/**************************************************************************/
/* Buddy Icon Spec API */
/**************************************************************************/
/**
* purple_buddy_icon_spec_get_type:
*
* Returns: The #GType for the #PurpleBuddyIconSpec boxed structure.
*/
GType purple_buddy_icon_spec_get_type(void);
/**
* purple_buddy_icon_spec_new:
* @format: A comma-delimited list of image formats or %NULL if
* icons are not supported
* @min_width: Minimum width of an icon
* @min_height: Minimum height of an icon
* @max_width: Maximum width of an icon
* @max_height: Maximum height of an icon
* @max_filesize: Maximum file size in bytes
* @scale_rules: How to stretch this icon
*
* Creates a new #PurpleBuddyIconSpec instance.
*
* Returns: A new buddy icon spec.
*/
PurpleBuddyIconSpec *purple_buddy_icon_spec_new(char *format, int min_width,
int min_height, int max_width, int max_height, size_t max_filesize,
PurpleBuddyIconScaleFlags scale_rules);
/**
* purple_buddy_icon_spec_get_scaled_size:
* @spec: The buddy icon spec.
* @width: (inout): On input, the suggested width. On output, the width
* constrained by the spec.
* @height: (inout): On input, the suggested height. On output, the height
* constrained by the spec.
*
* Gets display size for a buddy icon
*/
void purple_buddy_icon_spec_get_scaled_size(PurpleBuddyIconSpec *spec,
int *width, int *height);
G_END_DECLS
#endif /* PURPLE_BUDDYICON_H */