/*
* Copyright (C) 2005-2007 Imendio AB
* Copyright (C) 2008-2012 Collabora Ltd.
*
* 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 St, Fifth Floor,
* Boston, MA 02110-1301 USA
*
* Authors: Xavier Claessens <xclaesse@gmail.com>
*/
#include "config.h"
#include "empathy-theme-manager.h"
#include "empathy-gsettings.h"
#define DEBUG_FLAG EMPATHY_DEBUG_OTHER
#include "empathy-debug.h"
struct _EmpathyThemeManagerPriv
{
GSettings *gsettings_chat;
guint emit_changed_idle;
gboolean in_constructor;
EmpathyAdiumData *adium_data;
gchar *adium_variant;
/* list of weakref to EmpathyThemeAdium objects */
GList *adium_views;
};
enum
{
THEME_CHANGED,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL] = { 0 };
G_DEFINE_TYPE (EmpathyThemeManager, empathy_theme_manager, G_TYPE_OBJECT);
static gboolean
theme_manager_emit_changed_idle_cb (gpointer manager)
{
EmpathyThemeManager *self = manager;
const gchar *adium_path = NULL;
if (self->priv->adium_data)
adium_path = empathy_adium_data_get_path (self->priv->adium_data);
DEBUG ("Emit theme-changed with: adium_path='%s' "
"adium_variant='%s'", adium_path, self->priv->adium_variant);
g_signal_emit (self, signals[THEME_CHANGED], 0, NULL);
self->priv->emit_changed_idle = 0;
return FALSE;
}
static void
theme_manager_emit_changed (EmpathyThemeManager *self)
{
/* We emit the signal in idle callback to be sure we emit it only once
* in the case both the name and adium_path changed */
if (self->priv->emit_changed_idle == 0 && !self->priv->in_constructor)
{
self->priv->emit_changed_idle = g_idle_add (
theme_manager_emit_changed_idle_cb, self);
}
}
static void
theme_manager_view_weak_notify_cb (gpointer data,
GObject *where_the_object_was)
{
GList **list = data;
*list = g_list_remove (*list, where_the_object_was);
}
static void
clear_list_of_views (GList **views)
{
while (*views)
{
g_object_weak_unref ((*views)->data,
theme_manager_view_weak_notify_cb,
views);
*views = g_list_delete_link (*views, *views);
}
}
static EmpathyThemeAdium *
theme_manager_create_adium_view (EmpathyThemeManager *self)
{
EmpathyThemeAdium *theme;
theme = empathy_theme_adium_new (self->priv->adium_data, self->priv->adium_variant);
self->priv->adium_views = g_list_prepend (self->priv->adium_views, theme);
g_object_weak_ref (G_OBJECT (theme),
theme_manager_view_weak_notify_cb,
&self->priv->adium_views);
return theme;
}
static void
theme_manager_notify_theme_cb (GSettings *gsettings_chat,
const gchar *key,
gpointer user_data)
{
EmpathyThemeManager *self = EMPATHY_THEME_MANAGER (user_data);
gchar *theme, *path;
theme = g_settings_get_string (gsettings_chat, key);
path = empathy_theme_manager_find_theme (theme);
if (path == NULL)
{
DEBUG ("Can't find theme: %s; fallback to 'Classic'",
theme);
path = empathy_theme_manager_find_theme ("Classic");
if (path == NULL)
g_critical ("Can't find 'Classic theme");
}
/* Load new theme data, we can stop tracking existing views since we
* won't be able to change them live anymore */
clear_list_of_views (&self->priv->adium_views);
tp_clear_pointer (&self->priv->adium_data, empathy_adium_data_unref);
self->priv->adium_data = empathy_adium_data_new (path);
theme_manager_emit_changed (self);
g_free (path);
g_free (theme);
}
static void
theme_manager_notify_adium_variant_cb (GSettings *gsettings_chat,
const gchar *key,
gpointer user_data)
{
EmpathyThemeManager *self = EMPATHY_THEME_MANAGER (user_data);
gchar *new_variant;
GList *l;
new_variant = g_settings_get_string (gsettings_chat, key);
if (!tp_strdiff (self->priv->adium_variant, new_variant))
{
g_free (new_variant);
return;
}
g_free (self->priv->adium_variant);
self->priv->adium_variant = new_variant;
for (l = self->priv->adium_views; l; l = l->next)
{
empathy_theme_adium_set_variant (EMPATHY_THEME_ADIUM (l->data),
self->priv->adium_variant);
}
}
EmpathyThemeAdium *
empathy_theme_manager_create_view (EmpathyThemeManager *self)
{
g_return_val_if_fail (EMPATHY_IS_THEME_MANAGER (self), NULL);
if (self->priv->adium_data != NULL)
return theme_manager_create_adium_view (self);
g_return_val_if_reached (NULL);
}
static void
theme_manager_finalize (GObject *object)
{
EmpathyThemeManager *self = (EmpathyThemeManager *) object;
g_object_unref (self->priv->gsettings_chat);
if (self->priv->emit_changed_idle != 0)
g_source_remove (self->priv->emit_changed_idle);
clear_list_of_views (&self->priv->adium_views);
g_free (self->priv->adium_variant);
tp_clear_pointer (&self->priv->adium_data, empathy_adium_data_unref);
G_OBJECT_CLASS (empathy_theme_manager_parent_class)->finalize (object);
}
static void
empathy_theme_manager_class_init (EmpathyThemeManagerClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
signals[THEME_CHANGED] = g_signal_new ("theme-changed",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
g_cclosure_marshal_generic,
G_TYPE_NONE,
0);
g_type_class_add_private (object_class, sizeof (EmpathyThemeManagerPriv));
object_class->finalize = theme_manager_finalize;
}
static void
empathy_theme_manager_init (EmpathyThemeManager *self)
{
self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
EMPATHY_TYPE_THEME_MANAGER, EmpathyThemeManagerPriv);
self->priv->in_constructor = TRUE;
self->priv->gsettings_chat = g_settings_new (EMPATHY_PREFS_CHAT_SCHEMA);
/* Take the adium path/variant and track changes */
g_signal_connect (self->priv->gsettings_chat,
"changed::" EMPATHY_PREFS_CHAT_THEME,
G_CALLBACK (theme_manager_notify_theme_cb), self);
theme_manager_notify_theme_cb (self->priv->gsettings_chat,
EMPATHY_PREFS_CHAT_THEME, self);
g_signal_connect (self->priv->gsettings_chat,
"changed::" EMPATHY_PREFS_CHAT_THEME_VARIANT,
G_CALLBACK (theme_manager_notify_adium_variant_cb), self);
theme_manager_notify_adium_variant_cb (self->priv->gsettings_chat,
EMPATHY_PREFS_CHAT_THEME_VARIANT, self);
self->priv->in_constructor = FALSE;
}
EmpathyThemeManager *
empathy_theme_manager_dup_singleton (void)
{
static EmpathyThemeManager *manager = NULL;
if (manager == NULL)
{
manager = g_object_new (EMPATHY_TYPE_THEME_MANAGER, NULL);
g_object_add_weak_pointer (G_OBJECT (manager), (gpointer *) &manager);
return manager;
}
return g_object_ref (manager);
}
static void
find_themes (GHashTable *hash,
const gchar *dirpath)
{
GDir *dir;
GError *error = NULL;
const gchar *name = NULL;
GHashTable *info = NULL;
dir = g_dir_open (dirpath, 0, &error);
if (dir != NULL)
{
name = g_dir_read_name (dir);
while (name != NULL)
{
gchar *path;
path = g_build_path (G_DIR_SEPARATOR_S, dirpath, name, NULL);
if (empathy_adium_path_is_valid (path))
{
info = empathy_adium_info_new (path);
if (info != NULL)
{
g_hash_table_insert (hash,
empathy_theme_manager_dup_theme_name_from_path (path),
info);
}
}
g_free (path);
name = g_dir_read_name (dir);
}
g_dir_close (dir);
}
else
{
DEBUG ("Error opening %s: %s\n", dirpath, error->message);
g_error_free (error);
}
}
GList *
empathy_theme_manager_get_adium_themes (void)
{
/* Theme name -> GHashTable info */
GHashTable *hash;
GList *result;
gchar *path = NULL;
const gchar *const *paths = NULL;
gint i = 0;
const gchar *dir;
hash = g_hash_table_new_full (g_str_hash, g_str_equal,
g_free, (GDestroyNotify) g_hash_table_unref);
/* Start from the more general locations (the system) to the more specific
* ones ($HOME, EMPATHY_SRCDIR) so the more specific themes will override
* the more general ones.*/
/* System */
paths = g_get_system_data_dirs ();
for (i = 0; paths[i] != NULL; i++)
{
path = g_build_path (G_DIR_SEPARATOR_S, paths[i],
"adium/message-styles", NULL);
find_themes (hash, path);
g_free (path);
}
/* Home */
path = g_build_path (G_DIR_SEPARATOR_S, g_get_user_data_dir (),
"adium/message-styles", NULL);
find_themes (hash, path);
g_free (path);
/* EMPATHY_SRCDIR */
dir = g_getenv ("EMPATHY_SRCDIR");
if (dir != NULL)
{
path = g_build_path (G_DIR_SEPARATOR_S, dir, "data/themes/", NULL);
find_themes (hash, path);
g_free (path);
}
result = g_hash_table_get_values (hash);
/* Pass ownership of the info hash table to the list */
g_list_foreach (result, (GFunc) g_hash_table_ref, NULL);
g_hash_table_unref (hash);
return result;
}
gchar *
empathy_theme_manager_find_theme (const gchar *name)
{
gchar *path;
const gchar * const *paths;
gint i;
/* look in EMPATHY_SRCDIR */
path = g_strjoin (NULL,
g_getenv ("EMPATHY_SRCDIR"),
"/data/themes/",
name,
".AdiumMessageStyle",
NULL);
DEBUG ("Trying '%s'", path);
if (empathy_adium_path_is_valid (path))
return path;
g_free (path);
/* look in user dir */
path = g_strjoin (NULL,
g_get_user_data_dir (),
"/adium/message-styles/",
name,
".AdiumMessageStyle",
NULL);
DEBUG ("Trying '%s'", path);
if (empathy_adium_path_is_valid (path))
return path;
g_free (path);
/* look in system dirs */
paths = g_get_system_data_dirs ();
for (i = 0; paths[i] != NULL; i++)
{
path = g_strjoin (NULL,
paths[i],
"/adium/message-styles/",
name,
".AdiumMessageStyle",
NULL);
DEBUG ("Trying '%s'", path);
if (empathy_adium_path_is_valid (path))
return path;
g_free (path);
}
return NULL;
}
gchar *
empathy_theme_manager_dup_theme_name_from_path (const gchar *path)
{
gchar *fullname = NULL, *result = NULL;
gchar **tmp = NULL;
if (path == NULL)
return NULL;
fullname = g_path_get_basename (path);
if (!g_str_has_suffix (fullname, ".AdiumMessageStyle"))
goto out;
tmp = g_strsplit (fullname, ".AdiumMessageStyle", 0);
result = g_strdup (tmp[0]);
out:
g_strfreev (tmp);
g_free (fullname);
return result;
}
