path: root/modules/cal-config-google/evolution-cal-config-google.c

/*
 * evolution-cal-config-google.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/>
 *
 */

#include <config.h>
#include <glib/gi18n-lib.h>

#include <libebackend/libebackend.h>

#include <e-util/e-util.h>

#include "e-google-chooser-button.h"
#include "e-google-chooser-dialog.h"

typedef ESourceConfigBackend ECalConfigGoogle;
typedef ESourceConfigBackendClass ECalConfigGoogleClass;

typedef struct _Context Context;

struct _Context {
    GtkWidget *google_button;
};

/* Module Entry Points */
void e_module_load (GTypeModule *type_module);
void e_module_unload (GTypeModule *type_module);

/* Forward Declarations */
GType e_cal_config_google_get_type (void);

G_DEFINE_DYNAMIC_TYPE (
    ECalConfigGoogle,
    e_cal_config_google,
    E_TYPE_SOURCE_CONFIG_BACKEND)

static void
cal_config_google_context_free (Context *context)
{
    g_object_unref (context->google_button);

    g_slice_free (Context, context);
}

static gboolean
cal_config_google_allow_creation (ESourceConfigBackend *backend)
{
    ESourceConfig *config;
    ECalClientSourceType source_type;

    config = e_source_config_backend_get_config (backend);

    source_type = e_cal_source_config_get_source_type (
        E_CAL_SOURCE_CONFIG (config));

    /* XXX Google's CalDAV interface doesn't support tasks. */
    return (source_type == E_CAL_CLIENT_SOURCE_TYPE_EVENTS);
}

static void
cal_config_google_insert_widgets (ESourceConfigBackend *backend,
                                  ESource *scratch_source)
{
    ESourceConfig *config;
    GtkWidget *widget;
    Context *context;
    const gchar *uid;

    context = g_slice_new0 (Context);
    uid = e_source_get_uid (scratch_source);
    config = e_source_config_backend_get_config (backend);

    g_object_set_data_full (
        G_OBJECT (backend), uid, context,
        (GDestroyNotify) cal_config_google_context_free);

    e_cal_source_config_add_offline_toggle (
        E_CAL_SOURCE_CONFIG (config), scratch_source);

    e_source_config_add_user_entry (config, scratch_source);

    widget = e_google_chooser_button_new (scratch_source);
    e_source_config_insert_widget (
        config, scratch_source, _("Calendar:"), widget);
    context->google_button = g_object_ref (widget);
    gtk_widget_show (widget);

    e_source_config_add_refresh_interval (config, scratch_source);
}

static void
cal_config_google_commit_changes (ESourceConfigBackend *backend,
                                  ESource *scratch_source)
{
    ESourceBackend *calendar_extension;
    ESourceWebdav *webdav_extension;
    SoupURI *soup_uri;

    /* We need to hard-code a few settings. */

    calendar_extension = e_source_get_extension (
        scratch_source, E_SOURCE_EXTENSION_CALENDAR);

    webdav_extension = e_source_get_extension (
        scratch_source, E_SOURCE_EXTENSION_WEBDAV_BACKEND);

    /* The backend name is actually "caldav" even though the
     * ESource is a child of the built-in "Google" source. */
    e_source_backend_set_backend_name (calendar_extension, "caldav");

    soup_uri = e_source_webdav_dup_soup_uri (webdav_extension);

    if (!soup_uri->path || !*soup_uri->path || g_strcmp0 (soup_uri->path, "/") == 0) {
        ESourceAuthentication *authentication_extension
            = e_source_get_extension (scratch_source, E_SOURCE_EXTENSION_AUTHENTICATION);

        e_google_chooser_construct_default_uri (soup_uri,
            e_source_authentication_get_user (authentication_extension));
    }

    /* The host name is fixed, obviously. */
    soup_uri_set_host (soup_uri, "www.google.com");

    /* Google's CalDAV interface requires a secure connection. */
    soup_uri_set_scheme (soup_uri, SOUP_URI_SCHEME_HTTPS);

    e_source_webdav_set_soup_uri (webdav_extension, soup_uri);

    soup_uri_free (soup_uri);
}

static gboolean
cal_config_google_check_complete (ESourceConfigBackend *backend,
                                  ESource *scratch_source)
{
    ESourceAuthentication *extension;
    const gchar *extension_name;
    const gchar *user;

    extension_name = E_SOURCE_EXTENSION_AUTHENTICATION;
    extension = e_source_get_extension (scratch_source, extension_name);
    user = e_source_authentication_get_user (extension);

    return (user != NULL);
}

static void
e_cal_config_google_class_init (ESourceConfigBackendClass *class)
{
    EExtensionClass *extension_class;

    extension_class = E_EXTENSION_CLASS (class);
    extension_class->extensible_type = E_TYPE_CAL_SOURCE_CONFIG;

    class->parent_uid = "google-stub";
    class->backend_name = "google";
    class->allow_creation = cal_config_google_allow_creation;
    class->insert_widgets = cal_config_google_insert_widgets;
    class->check_complete = cal_config_google_check_complete;
    class->commit_changes = cal_config_google_commit_changes;
}

static void
e_cal_config_google_class_finalize (ESourceConfigBackendClass *class)
{
}

static void
e_cal_config_google_init (ESourceConfigBackend *backend)
{
}

G_MODULE_EXPORT void
e_module_load (GTypeModule *type_module)
{
    e_google_chooser_type_register (type_module);
    e_google_chooser_button_type_register (type_module);
    e_google_chooser_dialog_type_register (type_module);
    e_cal_config_google_register_type (type_module);
}

G_MODULE_EXPORT void
e_module_unload (GTypeModule *type_module)
{
}