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midori/midori/midori-extension.c

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/*
Copyright (C) 2008 Christian Dywan <christian@twotoasts.de>
This library 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 2.1 of the License, or (at your option) any later version.
See the file COPYING for the full license text.
*/
#include "midori-extension.h"
#if HAVE_CONFIG_H
#include <config.h>
#endif
#include "midori-app.h"
#include <katze/katze.h>
G_DEFINE_TYPE (MidoriExtension, midori_extension, G_TYPE_OBJECT);
struct _MidoriExtensionPrivate
{
gchar* name;
gchar* description;
gchar* version;
gchar* authors;
gboolean active;
gchar* config_dir;
};
enum
{
PROP_0,
PROP_NAME,
PROP_DESCRIPTION,
PROP_VERSION,
PROP_AUTHORS
};
enum {
ACTIVATE,
DEACTIVATE,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL];
static void
midori_extension_finalize (GObject* object);
static void
midori_extension_set_property (GObject* object,
guint prop_id,
const GValue* value,
GParamSpec* pspec);
static void
midori_extension_get_property (GObject* object,
guint prop_id,
GValue* value,
GParamSpec* pspec);
static void
midori_extension_class_init (MidoriExtensionClass* class)
{
GObjectClass* gobject_class;
GParamFlags flags;
signals[ACTIVATE] = g_signal_new (
"activate",
G_TYPE_FROM_CLASS (class),
(GSignalFlags)(G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION),
0,
0,
NULL,
g_cclosure_marshal_VOID__OBJECT,
G_TYPE_NONE, 1,
MIDORI_TYPE_APP);
signals[DEACTIVATE] = g_signal_new (
"deactivate",
G_TYPE_FROM_CLASS (class),
(GSignalFlags)(G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION),
0,
0,
NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0,
G_TYPE_NONE);
gobject_class = G_OBJECT_CLASS (class);
gobject_class->finalize = midori_extension_finalize;
gobject_class->set_property = midori_extension_set_property;
gobject_class->get_property = midori_extension_get_property;
flags = G_PARAM_READWRITE | G_PARAM_CONSTRUCT;
g_object_class_install_property (gobject_class,
PROP_NAME,
g_param_spec_string (
"name",
"Name",
"The name of the extension",
NULL,
flags));
g_object_class_install_property (gobject_class,
PROP_DESCRIPTION,
g_param_spec_string (
"description",
"Description",
"The description of the extension",
NULL,
flags));
g_object_class_install_property (gobject_class,
PROP_VERSION,
g_param_spec_string (
"version",
"Version",
"The version of the extension",
NULL,
flags));
g_object_class_install_property (gobject_class,
PROP_AUTHORS,
g_param_spec_string (
"authors",
"Authors",
"The authors of the extension",
NULL,
flags));
g_type_class_add_private (class, sizeof (MidoriExtensionPrivate));
}
static void
midori_extension_activate_cb (MidoriExtension* extension,
MidoriApp* app)
{
extension->priv->active = TRUE;
/* FIXME: Disconnect all signal handlers */
}
static void
midori_extension_init (MidoriExtension* extension)
{
extension->priv = G_TYPE_INSTANCE_GET_PRIVATE (extension,
MIDORI_TYPE_EXTENSION, MidoriExtensionPrivate);
extension->priv->active = FALSE;
extension->priv->config_dir = NULL;
g_signal_connect (extension, "activate",
G_CALLBACK (midori_extension_activate_cb), NULL);
}
static void
midori_extension_finalize (GObject* object)
{
MidoriExtension* extension = MIDORI_EXTENSION (object);
katze_assign (extension->priv->name, NULL);
katze_assign (extension->priv->description, NULL);
katze_assign (extension->priv->version, NULL);
katze_assign (extension->priv->authors, NULL);
katze_assign (extension->priv->config_dir, NULL);
}
static void
midori_extension_set_property (GObject* object,
guint prop_id,
const GValue* value,
GParamSpec* pspec)
{
MidoriExtension* extension = MIDORI_EXTENSION (object);
switch (prop_id)
{
case PROP_NAME:
katze_assign (extension->priv->name, g_value_dup_string (value));
break;
case PROP_DESCRIPTION:
katze_assign (extension->priv->description, g_value_dup_string (value));
break;
case PROP_VERSION:
katze_assign (extension->priv->version, g_value_dup_string (value));
break;
case PROP_AUTHORS:
katze_assign (extension->priv->authors, g_value_dup_string (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
midori_extension_get_property (GObject* object,
guint prop_id,
GValue* value,
GParamSpec* pspec)
{
MidoriExtension* extension = MIDORI_EXTENSION (object);
switch (prop_id)
{
case PROP_NAME:
g_value_set_string (value, extension->priv->name);
break;
case PROP_DESCRIPTION:
g_value_set_string (value, extension->priv->description);
break;
case PROP_VERSION:
g_value_set_string (value, extension->priv->version);
break;
case PROP_AUTHORS:
g_value_set_string (value, extension->priv->authors);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/**
* midori_extension_is_prepared:
* @extension: a #MidoriExtension
*
* Determines if @extension is prepared for use, for instance
* by ensuring that all required values are set and that it
* is actually activatable.
*
* Return value: %TRUE if @extension is ready for use
**/
gboolean
midori_extension_is_prepared (MidoriExtension* extension)
{
g_return_val_if_fail (MIDORI_IS_EXTENSION (extension), FALSE);
if (extension->priv->name && extension->priv->description
&& extension->priv->version && extension->priv->authors
&& g_signal_has_handler_pending (extension, signals[ACTIVATE], 0, FALSE))
return TRUE;
return FALSE;
}
/**
* midori_extension_is_active:
* @extension: a #MidoriExtension
*
* Determines if @extension is active.
*
* Return value: %TRUE if @extension is active
*
* Since: 0.1.2
**/
gboolean
midori_extension_is_active (MidoriExtension* extension)
{
g_return_val_if_fail (MIDORI_IS_EXTENSION (extension), FALSE);
return extension->priv->active;
}
/**
* midori_extension_deactivate:
* @extension: a #MidoriExtension
*
* Attempts to deactivate @extension in a way that the instance
* is actually finished irreversibly.
**/
void
midori_extension_deactivate (MidoriExtension* extension)
{
g_return_if_fail (MIDORI_IS_EXTENSION (extension));
g_signal_emit (extension, signals[DEACTIVATE], 0);
g_signal_handlers_destroy (extension);
g_object_run_dispose (G_OBJECT (extension));
}
/**
* midori_extension_get_config_dir:
* @extension: a #MidoriExtension
*
* Retrieves the path to a directory reserved for configuration
* files specific to the extension. For that purpose the 'name'
* of the extension is actually part of the path.
*
* The path is actually created if it doesn't already exist.
*
* Return value: a path, such as ~/.config/midori/extensions/name
**/
const gchar*
midori_extension_get_config_dir (MidoriExtension* extension)
{
g_return_val_if_fail (MIDORI_IS_EXTENSION (extension), NULL);
g_return_val_if_fail (midori_extension_is_prepared (extension), NULL);
if (!extension->priv->config_dir)
extension->priv->config_dir = g_build_filename (
g_get_user_config_dir (), PACKAGE_NAME, "extensions",
extension->priv->name, NULL);
g_mkdir_with_parents (extension->priv->config_dir, 0700);
return extension->priv->config_dir;
}
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