/* -*- Mode: C; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */ /* logview-manager.c - manager for the opened log objects * * Copyright (C) 2008 Cosimo Cecchi <cosimoc@gnome.org> * * 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., 551 Franklin Street, Fifth Floor, Boston, MA 02110-1301, * USA. */ /* logview-manager.c */ #ifdef HAVE_CONFIG_H #include <config.h> #endif #include "logview-manager.h" #include <glib/gi18n.h> #include "logview-prefs.h" #include "logview-marshal.h" #include "logview-app.h" enum { LOG_ADDED, LOG_CLOSED, ACTIVE_CHANGED, LAST_SIGNAL }; typedef struct { LogviewManager *manager; gboolean set_active; gboolean is_multiple; GFile *file; } CreateCBData; typedef struct { int total; int current; GPtrArray *errors; } MultipleCreation; struct _LogviewManagerPrivate { GHashTable *logs; LogviewLog *active_log; }; static LogviewManager *singleton = NULL; static MultipleCreation *op = NULL; static guint signals[LAST_SIGNAL] = { 0 }; G_DEFINE_TYPE (LogviewManager, logview_manager, G_TYPE_OBJECT); #define GET_PRIVATE(o) \ (G_TYPE_INSTANCE_GET_PRIVATE ((o), LOGVIEW_TYPE_MANAGER, LogviewManagerPrivate)) static void logview_manager_finalize (GObject *object) { LogviewManager *manager; manager = LOGVIEW_MANAGER (object); if (manager->priv->active_log) { g_object_unref (manager->priv->active_log); } g_hash_table_destroy (manager->priv->logs); G_OBJECT_CLASS (logview_manager_parent_class)->finalize (object); } static void logview_manager_class_init (LogviewManagerClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); object_class->finalize = logview_manager_finalize; signals[LOG_ADDED] = g_signal_new ("log-added", G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (LogviewManagerClass, log_added), NULL, NULL, g_cclosure_marshal_VOID__OBJECT, G_TYPE_NONE, 1, LOGVIEW_TYPE_LOG); signals[LOG_CLOSED] = g_signal_new ("log-closed", G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (LogviewManagerClass, log_closed), NULL, NULL, g_cclosure_marshal_VOID__OBJECT, G_TYPE_NONE, 1, LOGVIEW_TYPE_LOG); signals[ACTIVE_CHANGED] = g_signal_new ("active-changed", G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (LogviewManagerClass, active_changed), NULL, NULL, logview_marshal_VOID__OBJECT_OBJECT, G_TYPE_NONE, 2, LOGVIEW_TYPE_LOG, LOGVIEW_TYPE_LOG); g_type_class_add_private (klass, sizeof (LogviewManagerPrivate)); } static void logview_manager_init (LogviewManager *self) { LogviewManagerPrivate *priv = self->priv = GET_PRIVATE (self); priv->active_log = NULL; priv->logs = g_hash_table_new_full (g_str_hash, g_str_equal, (GDestroyNotify) g_free, (GDestroyNotify) g_object_unref); } static MultipleCreation * multiple_creation_op_new (int total) { MultipleCreation *retval; retval = g_slice_new0 (MultipleCreation); retval->total = total; retval->current = 0; retval->errors = g_ptr_array_new (); return retval; } static void multiple_creation_op_free (MultipleCreation *mc) { g_ptr_array_foreach (mc->errors, (GFunc) g_strfreev, NULL); g_ptr_array_free (mc->errors, TRUE); g_slice_free (MultipleCreation, mc); } static void create_log_cb (LogviewLog *log, GError *error, gpointer user_data) { CreateCBData *data = user_data; if (log) { char *log_uri; LogviewPrefs *prefs; GFile *file; log_uri = logview_log_get_uri (log); /* creation went well, store the log and notify */ g_hash_table_insert (data->manager->priv->logs, log_uri, log); prefs = logview_prefs_get (); file = logview_log_get_gfile (log); logview_prefs_store_log (prefs, file); g_object_unref (file); g_signal_emit (data->manager, signals[LOG_ADDED], 0, log, NULL); if (data->set_active) { logview_manager_set_active_log (data->manager, log); } } else { char *path; /* notify the error */ path = g_file_get_path (data->file); if (!data->is_multiple) { logview_app_add_error (logview_app_get (), path, error->message); } else { char **error_arr = g_new0 (char *, 3); error_arr[0] = g_strdup (path); error_arr[1] = g_strdup (error->message); error_arr[2] = NULL; g_ptr_array_add (op->errors, error_arr); } g_free (path); } if (data->is_multiple) { op->current++; if (op->total == op->current) { logview_app_add_errors (logview_app_get (), op->errors); multiple_creation_op_free (op); op = NULL; } } g_object_unref (data->file); g_slice_free (CreateCBData, data); } static void add_log_from_gfile_internal (LogviewManager *manager, GFile *file, gboolean set_active, gboolean is_multiple) { char *file_uri; LogviewLog *log; CreateCBData *data; file_uri = g_file_get_uri (file); if (set_active == FALSE) { /* if it's the first log being added, set it as active anyway */ set_active = (manager->priv->logs == NULL); } if ((log = g_hash_table_lookup (manager->priv->logs, file_uri)) != NULL) { /* log already exists, don't load it */ if (set_active) { logview_manager_set_active_log (manager, log); } } else { data = g_slice_new0 (CreateCBData); data->manager = manager; data->set_active = set_active; data->is_multiple = is_multiple; data->file = g_object_ref (file); logview_log_create_from_gfile (file, create_log_cb, data); } g_free (file_uri); } static void logview_manager_add_log_from_name (LogviewManager *manager, const char *filename, gboolean set_active, gboolean is_multiple) { GFile *file; file = g_file_new_for_path (filename); add_log_from_gfile_internal (manager, file, set_active, is_multiple); g_object_unref (file); } /* public methods */ LogviewManager* logview_manager_get (void) { if (!singleton) { singleton = g_object_new (LOGVIEW_TYPE_MANAGER, NULL); } return singleton; } void logview_manager_set_active_log (LogviewManager *manager, LogviewLog *log) { LogviewLog *old_log = NULL; GFile *file; char *path; g_assert (LOGVIEW_IS_MANAGER (manager)); if (manager->priv->active_log) { old_log = manager->priv->active_log; } manager->priv->active_log = g_object_ref (log); file = logview_log_get_gfile (log); path = g_file_get_path (file); logview_prefs_store_active_logfile (logview_prefs_get (), path); g_free (path); g_object_unref (file); g_signal_emit (manager, signals[ACTIVE_CHANGED], 0, log, old_log, NULL); if (old_log) { g_object_unref (old_log); } } LogviewLog * logview_manager_get_active_log (LogviewManager *manager) { g_assert (LOGVIEW_IS_MANAGER (manager)); return (manager->priv->active_log != NULL) ? g_object_ref (manager->priv->active_log) : NULL; } void logview_manager_add_log_from_gfile (LogviewManager *manager, GFile *file, gboolean set_active) { g_assert (LOGVIEW_IS_MANAGER (manager)); add_log_from_gfile_internal (manager, file, set_active, FALSE); } void logview_manager_add_logs_from_name_list (LogviewManager *manager, GSList *names, const char *active) { GSList *l; g_assert (LOGVIEW_IS_MANAGER (manager)); g_assert (op == NULL); op = multiple_creation_op_new (g_slist_length (names)); for (l = names; l; l = l->next) { logview_manager_add_log_from_name (manager, l->data, (g_ascii_strcasecmp (active, l->data) == 0), TRUE); } } void logview_manager_add_logs_from_names (LogviewManager *manager, char ** names, const gchar *active) { int i; gboolean set_active; g_assert (LOGVIEW_IS_MANAGER (manager)); g_assert (op == NULL); op = multiple_creation_op_new (g_strv_length (names)); for (i = 0; names[i]; i++) { set_active = (active != NULL) && (!g_ascii_strcasecmp (active, names[i])); logview_manager_add_log_from_name (manager, names[i], set_active, TRUE); } } int logview_manager_get_log_count (LogviewManager *manager) { g_assert (LOGVIEW_IS_MANAGER (manager)); return g_hash_table_size (manager->priv->logs); } LogviewLog * logview_manager_get_if_loaded (LogviewManager *manager, char *uri) { LogviewLog *log; g_assert (LOGVIEW_IS_MANAGER (manager)); log = g_hash_table_lookup (manager->priv->logs, uri); if (log != NULL) { return g_object_ref (log); } return NULL; } void logview_manager_close_active_log (LogviewManager *manager) { LogviewLog *active_log; char *log_uri; GFile *file; g_assert (LOGVIEW_IS_MANAGER (manager)); active_log = manager->priv->active_log; if (active_log == NULL) { return; } log_uri = logview_log_get_uri (active_log); file = logview_log_get_gfile (active_log); g_signal_emit (manager, signals[LOG_CLOSED], 0, active_log, NULL); logview_prefs_remove_stored_log (logview_prefs_get (), file); g_object_unref (file); /* drop the hash table ref */ g_hash_table_remove (manager->priv->logs, log_uri); g_free (log_uri); /* someone else will take care of setting the next active log to us */ } gboolean logview_manager_log_is_active (LogviewManager *manager, LogviewLog *log) { g_assert (LOGVIEW_IS_MANAGER (manager)); return (manager->priv->active_log == log); }