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-rw-r--r--logview/src/logview-manager.c432
1 files changed, 432 insertions, 0 deletions
diff --git a/logview/src/logview-manager.c b/logview/src/logview-manager.c
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+/* -*- 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 <[email protected]>
+ *
+ * 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);
+}
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