HGKeeper

* 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);

}

pidgin/pidgin