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path: root/calendar/gui/dialogs/task-editor.c
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/*
 * Evolution calendar - Task editor dialog
 *
 * 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/>
 *
 *
 * Authors:
 *      Miguel de Icaza <miguel@ximian.com>
 *      Federico Mena-Quintero <federico@ximian.com>
 *      Seth Alves <alves@hungry.com>
 *      JP Rosevear <jpr@ximian.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <string.h>
#include <glib/gi18n.h>

#include "task-page.h"
#include "cancel-comp.h"
#include "task-editor.h"

#define TASK_EDITOR_GET_PRIVATE(obj) \
    (G_TYPE_INSTANCE_GET_PRIVATE \
    ((obj), TYPE_TASK_EDITOR, TaskEditorPrivate))

struct _TaskEditorPrivate {
    TaskPage *task_page;

    EMeetingStore *model;
    gboolean assignment_shown;
    gboolean updating;
};

/* Extends the UI definition in CompEditor */
static const gchar *ui =
"<ui>"
"  <menubar action='main-menu'>"
"    <menu action='view-menu'>"
"      <menuitem action='view-type'/>"
"      <menuitem action='view-status'/>"
"      <menuitem action='view-role'/>"
"      <menuitem action='view-rsvp'/>"
"      <separator/>"
"      <menuitem action='view-time-zone'/>"
"      <menuitem action='view-categories'/>"
"    </menu>"
"    <menu action='insert-menu'>"
"      <menuitem action='send-options'/>"
"    </menu>"
"  </menubar>"
"  <toolbar name='main-toolbar'>"
"    <placeholder name='content'>"
"      <toolitem action='view-time-zone'/>"
"    </placeholder>"
"  </toolbar>"
"</ui>";

static void task_editor_edit_comp       (CompEditor *editor,
                         ECalComponent *comp);
static gboolean task_editor_send_comp       (CompEditor *editor,
                         ECalComponentItipMethod method,
                         gboolean strip_alarms);

G_DEFINE_TYPE (TaskEditor, task_editor, TYPE_COMP_EDITOR)

static void
action_send_options_cb (GtkAction *action,
                        TaskEditor *editor)
{
    task_page_send_options_clicked_cb (editor->priv->task_page);
}

static GtkActionEntry assigned_task_entries[] = {

    { "send-options",
      NULL,
      N_("_Send Options"),
      NULL,
      N_("Insert advanced send options"),
      G_CALLBACK (action_send_options_cb) }
};

static void
task_editor_model_changed_cb (TaskEditor *te)
{
    if (!te->priv->updating) {
        comp_editor_set_changed (COMP_EDITOR (te), TRUE);
        comp_editor_set_needs_send (COMP_EDITOR (te), TRUE);
    }
}

static void
task_editor_dispose (GObject *object)
{
    TaskEditorPrivate *priv;

    priv = TASK_EDITOR_GET_PRIVATE (object);

    if (priv->task_page) {
        g_object_unref (priv->task_page);
        priv->task_page = NULL;
    }

    if (priv->model) {
        g_object_unref (priv->model);
        priv->model = NULL;
    }

    /* Chain up to parent's dispose() method. */
    G_OBJECT_CLASS (task_editor_parent_class)->dispose (object);
}

static void
task_editor_constructed (GObject *object)
{
    TaskEditorPrivate *priv;
    CompEditor *editor;
    CompEditorFlags flags;
    GtkActionGroup *action_group;
    gboolean is_assigned;

    priv = TASK_EDITOR_GET_PRIVATE (object);
    editor = COMP_EDITOR (object);

    flags = comp_editor_get_flags (editor);
    is_assigned = flags & COMP_EDITOR_IS_ASSIGNED;

    priv->task_page = task_page_new (priv->model, editor);
    task_page_set_assignment (priv->task_page, is_assigned);
    comp_editor_append_page (
        editor, COMP_EDITOR_PAGE (priv->task_page),
        _("Task"), TRUE);

    action_group = comp_editor_get_action_group (editor, "coordinated");
    gtk_action_group_set_visible (action_group, is_assigned);

    if (is_assigned) {
        ECalClient *client;

        client = comp_editor_get_client (editor);

        if (e_client_check_capability (
                E_CLIENT (client),
                CAL_STATIC_CAPABILITY_REQ_SEND_OPTIONS))
            task_page_show_options (priv->task_page);
        comp_editor_set_group_item (editor, TRUE);
    }

    g_object_bind_property (
        object, "client",
        priv->model, "client",
        G_BINDING_SYNC_CREATE);

    /* Chain up to parent's constructed() method. */
    G_OBJECT_CLASS (task_editor_parent_class)->constructed (object);
}

static void
task_editor_show_categories (CompEditor *editor,
                             gboolean visible)
{
    TaskEditor *task_editor = TASK_EDITOR (editor);

    task_page_set_show_categories (task_editor->priv->task_page, visible);
}

static void
task_editor_show_role (CompEditor *editor,
                       gboolean visible)
{
    TaskEditor *task_editor = TASK_EDITOR (editor);

    task_page_set_view_role (task_editor->priv->task_page, visible);
}

static void
task_editor_show_rsvp (CompEditor *editor,
                       gboolean visible)
{
    TaskEditor *task_editor = TASK_EDITOR (editor);

    task_page_set_view_rsvp (task_editor->priv->task_page, visible);
}

static void
task_editor_show_status (CompEditor *editor,
                         gboolean visible)
{
    TaskEditor *task_editor = TASK_EDITOR (editor);

    task_page_set_view_status (task_editor->priv->task_page, visible);
}

static void
task_editor_show_time_zone (CompEditor *editor,
                            gboolean visible)
{
    TaskEditor *task_editor = TASK_EDITOR (editor);

    task_page_set_show_timezone (task_editor->priv->task_page, visible);
}

static void
task_editor_show_type (CompEditor *editor,
                       gboolean visible)
{
    TaskEditor *task_editor = TASK_EDITOR (editor);

    task_page_set_view_type (task_editor->priv->task_page, visible);
}

static void
task_editor_class_init (TaskEditorClass *class)
{
    GObjectClass *object_class;
    CompEditorClass *editor_class;

    g_type_class_add_private (class, sizeof (TaskEditorPrivate));

    object_class = G_OBJECT_CLASS (class);
    object_class->dispose = task_editor_dispose;
    object_class->constructed = task_editor_constructed;

    editor_class = COMP_EDITOR_CLASS (class);
    editor_class->help_section = "tasks-usage";
    editor_class->edit_comp = task_editor_edit_comp;
    editor_class->send_comp = task_editor_send_comp;
    editor_class->show_categories = task_editor_show_categories;
    editor_class->show_role = task_editor_show_role;
    editor_class->show_rsvp = task_editor_show_rsvp;
    editor_class->show_status = task_editor_show_status;
    editor_class->show_time_zone = task_editor_show_time_zone;
    editor_class->show_type = task_editor_show_type;
}

static void
task_editor_init (TaskEditor *te)
{
    CompEditor *editor = COMP_EDITOR (te);
    GtkUIManager *ui_manager;
    GtkActionGroup *action_group;
    GtkAction *action;
    const gchar *id;
    GError *error = NULL;

    te->priv = TASK_EDITOR_GET_PRIVATE (te);
    te->priv->model = E_MEETING_STORE (e_meeting_store_new ());
    te->priv->assignment_shown = TRUE;
    te->priv->updating = FALSE;

    action_group = comp_editor_get_action_group (editor, "coordinated");
    gtk_action_group_add_actions (
        action_group, assigned_task_entries,
        G_N_ELEMENTS (assigned_task_entries), te);

    ui_manager = comp_editor_get_ui_manager (editor);
    gtk_ui_manager_add_ui_from_string (ui_manager, ui, -1, &error);

    id = "org.gnome.evolution.task-editor";
    e_plugin_ui_register_manager (ui_manager, id, te);
    e_plugin_ui_enable_manager (ui_manager, id);

    if (error != NULL) {
        g_critical ("%s: %s", G_STRFUNC, error->message);
        g_error_free (error);
    }

    action = comp_editor_get_action (editor, "print");
    gtk_action_set_tooltip (action, _("Print this task"));

    g_signal_connect_swapped (
        te->priv->model, "row_changed",
        G_CALLBACK (task_editor_model_changed_cb), te);
    g_signal_connect_swapped (
        te->priv->model, "row_inserted",
        G_CALLBACK (task_editor_model_changed_cb), te);
    g_signal_connect_swapped (
        te->priv->model, "row_deleted",
        G_CALLBACK (task_editor_model_changed_cb), te);
}

static void
task_editor_edit_comp (CompEditor *editor,
                       ECalComponent *comp)
{
    TaskEditorPrivate *priv;
    ECalComponentOrganizer organizer;
    ECalClient *client;
    GSList *attendees = NULL;
    ESourceRegistry *registry;
    EShell *shell;

    priv = TASK_EDITOR_GET_PRIVATE (editor);

    priv->updating = TRUE;

    if (COMP_EDITOR_CLASS (task_editor_parent_class)->edit_comp)
        COMP_EDITOR_CLASS (task_editor_parent_class)->edit_comp (editor, comp);

    shell = comp_editor_get_shell (editor);
    client = comp_editor_get_client (editor);

    registry = e_shell_get_registry (shell);

    /* Get meeting related stuff */
    e_cal_component_get_organizer (comp, &organizer);
    e_cal_component_get_attendee_list (comp, &attendees);

    if (attendees != NULL) {
        GSList *l;
        gint row;

        task_page_hide_options (priv->task_page);
        task_page_set_assignment (priv->task_page, TRUE);

        for (l = attendees; l != NULL; l = l->next) {
            ECalComponentAttendee *ca = l->data;
            EMeetingAttendee *ia;

            ia = E_MEETING_ATTENDEE (
                e_meeting_attendee_new_from_e_cal_component_attendee (ca));
            /* If we aren't the organizer or the attendee is just
             * delegating, don't allow editing. */
            if (!comp_editor_get_user_org (editor) ||
                e_meeting_attendee_is_set_delto (ia))
                e_meeting_attendee_set_edit_level (
                    ia,  E_MEETING_ATTENDEE_EDIT_NONE);
            comp_editor_page_add_attendee (
                COMP_EDITOR_PAGE (priv->task_page), ia);

            g_object_unref (ia);
        }

        /* If we aren't the organizer we can still change our own status */
        if (!comp_editor_get_user_org (editor)) {
            EMeetingAttendee *ia;

            ia = e_meeting_store_find_self (priv->model, &row);

            if (ia != NULL)
                e_meeting_attendee_set_edit_level (
                    ia, E_MEETING_ATTENDEE_EDIT_STATUS);
        } else if (e_cal_client_check_organizer_must_attend (client)) {
            EMeetingAttendee *ia;

            ia = e_meeting_store_find_attendee (priv->model, organizer.value, &row);
            if (ia != NULL)
                e_meeting_attendee_set_edit_level (
                    ia, E_MEETING_ATTENDEE_EDIT_NONE);
        }

        comp_editor_set_group_item (editor, TRUE);
        priv->assignment_shown = TRUE;
    }
    e_cal_component_free_attendee_list (attendees);

    comp_editor_set_needs_send (
        editor, priv->assignment_shown &&
        itip_organizer_is_user (registry, comp, client));

    priv->updating = FALSE;
}

static gboolean
task_editor_send_comp (CompEditor *editor,
                       ECalComponentItipMethod method,
                       gboolean strip_alarms)
{
    TaskEditorPrivate *priv;
    EShell *shell;
    ESourceRegistry *registry;
    ECalComponent *comp = NULL;

    priv = TASK_EDITOR_GET_PRIVATE (editor);

    /* Don't cancel more than once or when just publishing */
    if (method == E_CAL_COMPONENT_METHOD_PUBLISH ||
        method == E_CAL_COMPONENT_METHOD_CANCEL)
        goto parent;

    shell = comp_editor_get_shell (editor);
    registry = e_shell_get_registry (shell);

    comp = task_page_get_cancel_comp (priv->task_page);
    if (comp != NULL) {
        ECalClient *client;
        gboolean result;

        client = e_meeting_store_get_client (priv->model);
        result = itip_send_comp (
            registry, E_CAL_COMPONENT_METHOD_CANCEL, comp,
            client, NULL, NULL, NULL, strip_alarms, FALSE);
        g_object_unref (comp);

        if (!result)
            return FALSE;
    }

 parent:
    if (COMP_EDITOR_CLASS (task_editor_parent_class)->send_comp)
        return COMP_EDITOR_CLASS (task_editor_parent_class)->
            send_comp (editor, method, strip_alarms);

    return FALSE;
}

/**
 * task_editor_new:
 * @client: a ECalClient
 *
 * Creates a new event editor dialog.
 *
 * Return value: A newly-created event editor dialog, or NULL if the event
 * editor could not be created.
 **/
CompEditor *
task_editor_new (ECalClient *client,
                 EShell *shell,
                 CompEditorFlags flags)
{
    g_return_val_if_fail (E_IS_CAL_CLIENT (client), NULL);
    g_return_val_if_fail (E_IS_SHELL (shell), NULL);

    return g_object_new (
        TYPE_TASK_EDITOR,
        "client", client, "flags", flags, "shell", shell, NULL);
}

void
task_editor_show_assignment (TaskEditor *te)
{
    CompEditor *editor;

    g_return_if_fail (IS_TASK_EDITOR (te));

    editor = COMP_EDITOR (te);

    task_page_set_assignment (te->priv->task_page, TRUE);
    if (!te->priv->assignment_shown) {
        te->priv->assignment_shown = TRUE;
        comp_editor_set_needs_send (editor, TRUE);
        comp_editor_set_changed (editor, FALSE);
    }

}