diff options
Diffstat (limited to 'widgets/misc/e-file-activity.c')
| -rw-r--r-- | widgets/misc/e-file-activity.c | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/widgets/misc/e-file-activity.c b/widgets/misc/e-file-activity.c new file mode 100644 index 0000000000..38dae234df --- /dev/null +++ b/widgets/misc/e-file-activity.c @@ -0,0 +1,234 @@ +/* + * e-file-activity.c + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) version 3. + * + * 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with the program; if not, see <http://www.gnu.org/licenses/> + * + * + * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com) + * + */ + +#include "e-file-activity.h" + +#define E_FILE_ACTIVITY_GET_PRIVATE(obj) \ + (G_TYPE_INSTANCE_GET_PRIVATE \ + ((obj), E_TYPE_FILE_ACTIVITY, EFileActivityPrivate)) + +struct _EFileActivityPrivate { + GCancellable *cancellable; + gulong handler_id; +}; + +enum { + PROP_0, + PROP_CANCELLABLE +}; + +static gpointer parent_class; + +static void +file_activity_set_property (GObject *object, + guint property_id, + const GValue *value, + GParamSpec *pspec) +{ + switch (property_id) { + case PROP_CANCELLABLE: + e_file_activity_set_cancellable ( + E_FILE_ACTIVITY (object), + g_value_get_object (value)); + return; + } + + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); +} + +static void +file_activity_get_property (GObject *object, + guint property_id, + GValue *value, + GParamSpec *pspec) +{ + switch (property_id) { + case PROP_CANCELLABLE: + g_value_set_object ( + value, e_file_activity_get_cancellable ( + E_FILE_ACTIVITY (object))); + return; + } + + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); +} + +static void +file_activity_dispose (GObject *object) +{ + EFileActivityPrivate *priv; + + priv = E_FILE_ACTIVITY_GET_PRIVATE (object); + + if (priv->cancellable != NULL) { + g_signal_handler_disconnect ( + priv->cancellable, priv->handler_id); + g_object_unref (priv->cancellable); + priv->cancellable = NULL; + } + + /* Chain up to parent's dispose() method. */ + G_OBJECT_CLASS (parent_class)->dispose (object); +} + +static void +file_activity_cancelled (EActivity *activity) +{ + EFileActivity *file_activity; + GCancellable *cancellable; + + file_activity = E_FILE_ACTIVITY (activity); + cancellable = e_file_activity_get_cancellable (file_activity); + g_cancellable_cancel (cancellable); + + /* Chain up to parent's cancelled() method. */ + E_ACTIVITY_CLASS (parent_class)->cancelled (activity); +} + +static void +file_activity_class_init (EFileActivityClass *class) +{ + GObjectClass *object_class; + EActivityClass *activity_class; + + parent_class = g_type_class_peek_parent (class); + g_type_class_add_private (class, sizeof (EFileActivityPrivate)); + + object_class = G_OBJECT_CLASS (class); + object_class->set_property = file_activity_set_property; + object_class->get_property = file_activity_get_property; + object_class->dispose = file_activity_dispose; + + activity_class = E_ACTIVITY_CLASS (class); + activity_class->cancelled = file_activity_cancelled; + + g_object_class_install_property ( + object_class, + PROP_CANCELLABLE, + g_param_spec_object ( + "cancellable", + "Cancellable", + NULL, + G_TYPE_CANCELLABLE, + G_PARAM_READWRITE)); +} + +static void +file_activity_init (EFileActivity *file_activity) +{ + GCancellable *cancellable; + + file_activity->priv = E_FILE_ACTIVITY_GET_PRIVATE (file_activity); + + e_activity_set_allow_cancel (E_ACTIVITY (file_activity), TRUE); + + cancellable = g_cancellable_new (); + e_file_activity_set_cancellable (file_activity, cancellable); + g_object_unref (cancellable); +} + +GType +e_file_activity_get_type (void) +{ + static GType type = 0; + + if (G_UNLIKELY (type == 0)) { + static const GTypeInfo type_info = { + sizeof (EFileActivityClass), + (GBaseInitFunc) NULL, + (GBaseFinalizeFunc) NULL, + (GClassInitFunc) file_activity_class_init, + (GClassFinalizeFunc) NULL, + NULL, /* class_data */ + sizeof (EFileActivity), + 0, /* n_preallocs */ + (GInstanceInitFunc) file_activity_init, + NULL /* value_table */ + }; + + type = g_type_register_static ( + E_TYPE_ACTIVITY, "EFileActivity", &type_info, 0); + } + + return type; +} + +EActivity * +e_file_activity_new (const gchar *primary_text) +{ + return g_object_new ( + E_TYPE_FILE_ACTIVITY, + "primary-text", primary_text, NULL); +} + +GCancellable * +e_file_activity_get_cancellable (EFileActivity *file_activity) +{ + g_return_val_if_fail (E_IS_FILE_ACTIVITY (file_activity), NULL); + + return file_activity->priv->cancellable; +} + +void +e_file_activity_set_cancellable (EFileActivity *file_activity, + GCancellable *cancellable) +{ + g_return_if_fail (E_IS_FILE_ACTIVITY (file_activity)); + + if (cancellable != NULL) { + g_return_if_fail (G_IS_CANCELLABLE (cancellable)); + g_object_ref (cancellable); + } + + if (file_activity->priv->cancellable != NULL) { + g_signal_handler_disconnect ( + file_activity->priv->cancellable, + file_activity->priv->handler_id); + g_object_unref (file_activity->priv->cancellable); + file_activity->priv->handler_id = 0; + } + + file_activity->priv->cancellable = cancellable; + + if (cancellable != NULL) + file_activity->priv->handler_id = + g_signal_connect_swapped ( + cancellable, "cancelled", + G_CALLBACK (e_activity_cancel), + file_activity); + + g_object_notify (G_OBJECT (file_activity), "cancellable"); +} + +void +e_file_activity_progress (goffset current_num_bytes, + goffset total_num_bytes, + gpointer activity) +{ + gdouble percent = -1.0; + + g_return_if_fail (E_IS_ACTIVITY (activity)); + + if (current_num_bytes > 0 && total_num_bytes > 0) + percent = (gdouble) current_num_bytes / total_num_bytes; + + e_activity_set_percent (activity, percent); +} |