pidgin/pidgin

closing merged branch
port-changes-from-branch-2.x.y-to-default
13 months ago, Gary Kramlich
2f836435c33c
closing merged branch
/*
* Themes for libpurple
*
* Pidgin 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 "internal.h"
#include "theme-manager.h"
#include "util.h"
struct _PurpleThemeManager {
GObject parent;
};
/******************************************************************************
* Globals
*****************************************************************************/
static GHashTable *theme_table = NULL;
/*****************************************************************************
* GObject Stuff
****************************************************************************/
GType
purple_theme_manager_get_type(void)
{
static GType type = 0;
if (type == 0) {
static const GTypeInfo info = {
sizeof(PurpleThemeManagerClass),
NULL, /* base_init */
NULL, /* base_finalize */
NULL, /* class_init */
NULL, /* class_finalize */
NULL, /* class_data */
sizeof(PurpleThemeManager),
0, /* n_preallocs */
NULL, /* instance_init */
NULL, /* Value Table */
};
type = g_type_register_static(G_TYPE_OBJECT,
"PurpleThemeManager", &info, 0);
}
return type;
}
/******************************************************************************
* Helpers
*****************************************************************************/
/* makes a key of <type> + '/' + <name> */
static gchar *
purple_theme_manager_make_key(const gchar *name, const gchar *type)
{
g_return_val_if_fail(name && *name, NULL);
g_return_val_if_fail(type && *type, NULL);
return g_strconcat(type, "/", name, NULL);
}
/* returns TRUE if theme is of type "user_data" */
static gboolean
purple_theme_manager_is_theme_type(gchar *key,
gpointer value,
gchar *user_data)
{
return g_str_has_prefix(key, g_strconcat(user_data, "/", NULL));
}
static gboolean
check_if_theme_or_loader(gchar *key, gpointer value, GSList **loaders)
{
if (PURPLE_IS_THEME(value))
return TRUE;
else if (PURPLE_IS_THEME_LOADER(value))
*loaders = g_slist_prepend(*loaders, value);
return FALSE;
}
static void
purple_theme_manager_function_wrapper(gchar *key,
gpointer value,
PurpleThemeFunc user_data)
{
if (PURPLE_IS_THEME(value))
(* user_data)(value);
}
static void
purple_theme_manager_build_dir(GSList *loaders, const gchar *root)
{
gchar *theme_dir;
const gchar *name;
GDir *rdir;
GSList *tmp;
PurpleThemeLoader *loader;
rdir = g_dir_open(root, 0, NULL);
if (!rdir)
return;
while ((name = g_dir_read_name(rdir))) {
theme_dir = g_build_filename(root, name, NULL);
for (tmp = loaders; tmp; tmp = g_slist_next(tmp)) {
loader = PURPLE_THEME_LOADER(tmp->data);
if (purple_theme_loader_probe(loader, theme_dir)) {
PurpleTheme *theme = purple_theme_loader_build(loader, theme_dir);
if (PURPLE_IS_THEME(theme))
purple_theme_manager_add_theme(theme);
}
}
g_free(theme_dir);
}
g_dir_close(rdir);
}
/*****************************************************************************
* Public API functions
*****************************************************************************/
void
purple_theme_manager_init(void)
{
theme_table = g_hash_table_new_full(g_str_hash,
g_str_equal, g_free, g_object_unref);
}
void
purple_theme_manager_refresh(void)
{
gchar *path;
const gchar *const *xdg_dirs;
gint i;
GSList *loaders = NULL;
g_hash_table_foreach_remove(theme_table, (GHRFunc)check_if_theme_or_loader,
&loaders);
/* Add themes from ~/.purple */
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
path = g_build_filename(purple_user_dir(), "themes", NULL);
G_GNUC_END_IGNORE_DEPRECATIONS
purple_theme_manager_build_dir(loaders, path);
g_free(path);
/* look for XDG_DATA_HOME */
/* NOTE: will work on Windows, see g_get_user_data_dir() documentation */
path = g_build_filename(g_get_user_data_dir(), "themes", NULL);
purple_theme_manager_build_dir(loaders, path);
g_free(path);
/* now dig through XDG_DATA_DIRS and add those too */
/* NOTE: will work on Windows, see g_get_system_data_dirs() documentation */
xdg_dirs = g_get_system_data_dirs();
for (i = 0; xdg_dirs[i] != NULL; i++) {
path = g_build_filename(xdg_dirs[i], "themes", NULL);
purple_theme_manager_build_dir(loaders, path);
g_free(path);
}
g_slist_free(loaders);
}
void
purple_theme_manager_uninit(void)
{
g_hash_table_destroy(theme_table);
}
void
purple_theme_manager_register_type(PurpleThemeLoader *loader)
{
gchar *type;
g_return_if_fail(PURPLE_IS_THEME_LOADER(loader));
type = g_strdup(purple_theme_loader_get_type_string(loader));
g_return_if_fail(type);
/* if something is already there do nothing */
if (!g_hash_table_lookup(theme_table, type))
g_hash_table_insert(theme_table, type, loader);
}
void
purple_theme_manager_unregister_type(PurpleThemeLoader *loader)
{
const gchar *type;
g_return_if_fail(PURPLE_IS_THEME_LOADER(loader));
type = purple_theme_loader_get_type_string(loader);
g_return_if_fail(type);
if (g_hash_table_lookup(theme_table, type) == loader)
{
g_hash_table_remove(theme_table, type);
g_hash_table_foreach_remove(theme_table,
(GHRFunc)purple_theme_manager_is_theme_type, (gpointer)type);
} /* only free if given registered loader */
}
PurpleTheme *
purple_theme_manager_find_theme(const gchar *name,
const gchar *type)
{
gchar *key;
PurpleTheme *theme;
key = purple_theme_manager_make_key(name, type);
g_return_val_if_fail(key, NULL);
theme = g_hash_table_lookup(theme_table, key);
g_free(key);
return theme;
}
void
purple_theme_manager_add_theme(PurpleTheme *theme)
{
gchar *key;
g_return_if_fail(PURPLE_IS_THEME(theme));
key = purple_theme_manager_make_key(purple_theme_get_name(theme),
purple_theme_get_type_string(theme));
g_return_if_fail(key);
/* if something is already there do nothing */
if (g_hash_table_lookup(theme_table, key) == NULL)
g_hash_table_insert(theme_table, key, theme);
}
void
purple_theme_manager_remove_theme(PurpleTheme *theme)
{
gchar *key;
g_return_if_fail(PURPLE_IS_THEME(theme));
key = purple_theme_manager_make_key(purple_theme_get_name(theme),
purple_theme_get_type_string(theme));
g_return_if_fail(key);
g_hash_table_remove(theme_table, key);
g_free(key);
}
void
purple_theme_manager_for_each_theme(PurpleThemeFunc func)
{
g_return_if_fail(func);
g_hash_table_foreach(theme_table,
(GHFunc) purple_theme_manager_function_wrapper, func);
}
PurpleTheme *
purple_theme_manager_load_theme(const gchar *theme_dir, const gchar *type)
{
PurpleThemeLoader *loader;
g_return_val_if_fail(theme_dir != NULL && type != NULL, NULL);
loader = g_hash_table_lookup(theme_table, type);
g_return_val_if_fail(PURPLE_IS_THEME_LOADER(loader), NULL);
return purple_theme_loader_build(loader, theme_dir);
}