aa66a17e40
Rename e-fsutils to e-file-utils. This is where we'll add asynchronous functions for common file I/O operations with EActivity integration. Start with e_file_replace_contents_async() (and corresponding finish() function). This is a simple wrapper for g_file_replace_contents_async() which also returns an EActivity. It replaces e_write_file_uri(). Also redesign EIOActivity to -contain- a GAsyncResult rather than implement the interface for itself. This is easier for now but I may change my mind again when I figure out how to tie centralized error reporting into the EActivity framework.
296 lines
7.2 KiB
C
296 lines
7.2 KiB
C
/*
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* e-io-activity.c
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) version 3.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with the program; if not, see <http://www.gnu.org/licenses/>
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*
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*
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* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
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*
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*/
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#include "e-io-activity.h"
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#define E_IO_ACTIVITY_GET_PRIVATE(obj) \
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(G_TYPE_INSTANCE_GET_PRIVATE \
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((obj), E_TYPE_IO_ACTIVITY, EIOActivityPrivate))
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struct _EIOActivityPrivate {
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GAsyncResult *async_result;
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GCancellable *cancellable;
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};
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enum {
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PROP_0,
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PROP_ASYNC_RESULT,
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PROP_CANCELLABLE
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};
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static gpointer parent_class;
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static void
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io_activity_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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switch (property_id) {
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case PROP_ASYNC_RESULT:
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e_io_activity_set_async_result (
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E_IO_ACTIVITY (object),
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g_value_get_object (value));
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return;
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case PROP_CANCELLABLE:
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e_io_activity_set_cancellable (
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E_IO_ACTIVITY (object),
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g_value_get_object (value));
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return;
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}
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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}
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static void
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io_activity_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec)
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{
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switch (property_id) {
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case PROP_ASYNC_RESULT:
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g_value_set_object (
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value, e_io_activity_get_async_result (
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E_IO_ACTIVITY (object)));
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return;
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case PROP_CANCELLABLE:
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g_value_set_object (
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value, e_io_activity_get_cancellable (
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E_IO_ACTIVITY (object)));
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return;
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}
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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}
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static void
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io_activity_dispose (GObject *object)
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{
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EIOActivityPrivate *priv;
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priv = E_IO_ACTIVITY_GET_PRIVATE (object);
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if (priv->async_result != NULL) {
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g_object_unref (priv->async_result);
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priv->async_result = NULL;
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}
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if (priv->cancellable != NULL) {
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g_object_unref (priv->cancellable);
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priv->cancellable = NULL;
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}
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/* Chain up to parent's dispose() method. */
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static void
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io_activity_cancelled (EActivity *activity)
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{
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EIOActivity *io_activity;
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GCancellable *cancellable;
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/* Chain up to parent's cancelled() method. */
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E_ACTIVITY_CLASS (parent_class)->cancelled (activity);
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io_activity = E_IO_ACTIVITY (activity);
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cancellable = e_io_activity_get_cancellable (io_activity);
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if (cancellable != NULL)
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g_cancellable_cancel (cancellable);
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}
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static void
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io_activity_completed (EActivity *activity)
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{
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EIOActivity *io_activity;
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GAsyncResult *async_result;
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/* Chain up to parent's completed() method. */
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E_ACTIVITY_CLASS (parent_class)->completed (activity);
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io_activity = E_IO_ACTIVITY (activity);
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async_result = e_io_activity_get_async_result (io_activity);
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/* We know how to invoke a GSimpleAsyncResult. For any other
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* type of GAsyncResult the caller will have to take measures
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* to invoke it himself. */
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if (G_IS_SIMPLE_ASYNC_RESULT (async_result))
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g_simple_async_result_complete (
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G_SIMPLE_ASYNC_RESULT (async_result));
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}
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static void
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io_activity_class_init (EIOActivityClass *class)
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{
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GObjectClass *object_class;
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EActivityClass *activity_class;
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parent_class = g_type_class_peek_parent (class);
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g_type_class_add_private (class, sizeof (EIOActivityPrivate));
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object_class = G_OBJECT_CLASS (class);
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object_class->set_property = io_activity_set_property;
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object_class->get_property = io_activity_get_property;
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object_class->dispose = io_activity_dispose;
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activity_class = E_ACTIVITY_CLASS (class);
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activity_class->cancelled = io_activity_cancelled;
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activity_class->completed = io_activity_completed;
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g_object_class_install_property (
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object_class,
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PROP_ASYNC_RESULT,
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g_param_spec_object (
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"async-result",
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"Asynchronous Result",
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NULL,
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G_TYPE_ASYNC_RESULT,
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G_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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g_object_class_install_property (
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object_class,
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PROP_CANCELLABLE,
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g_param_spec_object (
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"cancellable",
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"Cancellable",
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NULL,
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G_TYPE_CANCELLABLE,
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G_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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}
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static void
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io_activity_init (EIOActivity *io_activity)
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{
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io_activity->priv = E_IO_ACTIVITY_GET_PRIVATE (io_activity);
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}
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GType
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e_io_activity_get_type (void)
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{
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static GType type = 0;
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if (G_UNLIKELY (type == 0)) {
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static const GTypeInfo type_info = {
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sizeof (EIOActivityClass),
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(GBaseInitFunc) NULL,
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(GBaseFinalizeFunc) NULL,
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(GClassInitFunc) io_activity_class_init,
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(GClassFinalizeFunc) NULL,
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NULL, /* class_data */
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sizeof (EIOActivity),
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0, /* n_preallocs */
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(GInstanceInitFunc) io_activity_init,
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NULL /* value_table */
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};
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type = g_type_register_static (
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E_TYPE_ACTIVITY, "EIOActivity", &type_info, 0);
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}
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return type;
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}
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EActivity *
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e_io_activity_new (const gchar *primary_text,
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GAsyncResult *async_result,
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GCancellable *cancellable)
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{
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g_return_val_if_fail (primary_text != NULL, NULL);
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if (async_result != NULL)
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g_return_val_if_fail (G_IS_ASYNC_RESULT (async_result), NULL);
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if (cancellable != NULL)
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g_return_val_if_fail (G_IS_CANCELLABLE (cancellable), NULL);
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return g_object_new (
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E_TYPE_IO_ACTIVITY,
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"async-result", async_result, "cancellable",
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cancellable, "primary-text", primary_text, NULL);
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}
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GAsyncResult *
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e_io_activity_get_async_result (EIOActivity *io_activity)
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{
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g_return_val_if_fail (E_IS_IO_ACTIVITY (io_activity), NULL);
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return io_activity->priv->async_result;
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}
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void
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e_io_activity_set_async_result (EIOActivity *io_activity,
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GAsyncResult *async_result)
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{
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g_return_if_fail (E_IS_IO_ACTIVITY (io_activity));
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if (async_result != NULL) {
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g_return_if_fail (G_IS_ASYNC_RESULT (async_result));
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g_object_ref (async_result);
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}
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if (io_activity->priv->async_result != NULL)
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g_object_unref (io_activity->priv->async_result);
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io_activity->priv->async_result = async_result;
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g_object_notify (G_OBJECT (io_activity), "async-result");
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}
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GCancellable *
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e_io_activity_get_cancellable (EIOActivity *io_activity)
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{
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g_return_val_if_fail (E_IS_IO_ACTIVITY (io_activity), NULL);
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return io_activity->priv->cancellable;
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}
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void
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e_io_activity_set_cancellable (EIOActivity *io_activity,
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GCancellable *cancellable)
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{
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g_return_if_fail (E_IS_IO_ACTIVITY (io_activity));
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if (cancellable != NULL) {
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g_return_if_fail (G_IS_CANCELLABLE (cancellable));
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g_object_ref (cancellable);
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}
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if (io_activity->priv->cancellable != NULL)
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g_object_unref (io_activity->priv->cancellable);
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io_activity->priv->cancellable = cancellable;
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g_object_freeze_notify (G_OBJECT (io_activity));
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e_activity_set_allow_cancel (
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E_ACTIVITY (io_activity), (cancellable != NULL));
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g_object_notify (G_OBJECT (io_activity), "cancellable");
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g_object_thaw_notify (G_OBJECT (io_activity));
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}
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