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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 "e-util/e-plugin-ui.h"
#include "e-util/e-util-private.h"

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

struct _TaskEditorPrivate {
    TaskPage *task_page;
    TaskDetailsPage *task_details_page;
    GtkWidget *task_details_window;

    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>"
"    <menu action='options-menu'>"
"      <menu action='classification-menu'>"
"        <menuitem action='classify-public'/>"
"        <menuitem action='classify-private'/>"
"        <menuitem action='classify-confidential'/>"
"      </menu>"
"      <menuitem action='option-status'/>"
"    </menu>"
"  </menubar>"
"  <toolbar name='main-toolbar'>"
"    <placeholder name='content'>"
"      <toolitem action='view-time-zone'/>"
"      <toolitem action='option-status'/>"
"    </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_option_status_cb (GtkAction *action,
                         TaskEditor *editor)
{
    gtk_widget_show (editor->priv->task_details_window);
}

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

static GtkActionEntry task_entries[] = {

    { "option-status",
      "stock_view-details",
      N_("_Status Details"),
      "<Control>t",
      N_("Click to change or view the status details of the task"),
      G_CALLBACK (action_option_status_cb) }
};

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 GObject *
task_editor_constructor (GType type,
                         guint n_construct_properties,
                         GObjectConstructParam *construct_properties)
{
    GObject *object;
    CompEditor *editor;
    CompEditorFlags flags;
    TaskEditorPrivate *priv;
    GtkActionGroup *action_group;
    ECal *client;
    gboolean is_assigned;

    /* Chain up to parent's constructor() method. */
    object = G_OBJECT_CLASS (task_editor_parent_class)->constructor (
        type, n_construct_properties, construct_properties);

    editor = COMP_EDITOR (object);
    priv = TASK_EDITOR (object)->priv;

    client = comp_editor_get_client (editor);
    flags = comp_editor_get_flags (editor);
    action_group = comp_editor_get_action_group (editor, "coordinated");

    is_assigned = flags & COMP_EDITOR_IS_ASSIGNED;

    task_page_set_assignment (priv->task_page, is_assigned);
    gtk_action_group_set_visible (action_group, is_assigned);

    if (is_assigned) {
        if (e_cal_get_static_capability (client, CAL_STATIC_CAPABILITY_REQ_SEND_OPTIONS))
            task_page_show_options (priv->task_page);
        comp_editor_set_group_item (editor, TRUE);
    }

    return object;
}

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

    priv = TASK_EDITOR (object)->priv;

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

    if (priv->task_details_page) {
        g_object_unref (priv->task_details_page);
        priv->task_details_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;

    priv = TASK_EDITOR (object)->priv;

    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)
{
    TaskEditorPrivate *priv;

    priv = TASK_EDITOR (editor)->priv;

    task_page_set_show_categories (priv->task_page, visible);
}

static void
task_editor_show_role (CompEditor *editor,
                       gboolean visible)
{
    TaskEditorPrivate *priv;

    priv = TASK_EDITOR (editor)->priv;

    task_page_set_view_role (priv->task_page, visible);
}

static void
task_editor_show_rsvp (CompEditor *editor,
                       gboolean visible)
{
    TaskEditorPrivate *priv;

    priv = TASK_EDITOR (editor)->priv;

    task_page_set_view_rsvp (priv->task_page, visible);
}

static void
task_editor_show_status (CompEditor *editor,
                         gboolean visible)
{
    TaskEditorPrivate *priv;

    priv = TASK_EDITOR (editor)->priv;

    task_page_set_view_status (priv->task_page, visible);
}

static void
task_editor_show_time_zone (CompEditor *editor,
                            gboolean visible)
{
    TaskEditorPrivate *priv;

    priv = TASK_EDITOR (editor)->priv;

    task_page_set_show_timezone (priv->task_page, visible);
}

static void
task_editor_show_type (CompEditor *editor,
                       gboolean visible)
{
    TaskEditorPrivate *priv;

    priv = TASK_EDITOR (editor)->priv;

    task_page_set_view_type (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->constructor = task_editor_constructor;
    object_class->dispose = task_editor_dispose;
    object_class->constructed = task_editor_constructed;

    editor_class = COMP_EDITOR_CLASS (class);
    editor_class->help_section = "usage-calendar-todo";
    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;
    GtkWidget *content_area;
    GtkAction *action;
    const gchar *id;
    GError *error = NULL;

    te->priv = G_TYPE_INSTANCE_GET_PRIVATE (
        te, TYPE_TASK_EDITOR, TaskEditorPrivate);
    te->priv->model = E_MEETING_STORE (e_meeting_store_new ());
    te->priv->assignment_shown = TRUE;
    te->priv->updating = FALSE;

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

    te->priv->task_details_window = gtk_dialog_new_with_buttons (
        _("Task Details"), GTK_WINDOW (te), GTK_DIALOG_MODAL,
        GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE, NULL);
    g_signal_connect (
        te->priv->task_details_window, "response",
        G_CALLBACK (gtk_widget_hide), NULL);
    g_signal_connect (
        te->priv->task_details_window, "delete-event",
        G_CALLBACK (gtk_widget_hide), NULL);

    te->priv->task_details_page = task_details_page_new (editor);
    content_area = gtk_dialog_get_content_area (
        GTK_DIALOG (te->priv->task_details_window));
    gtk_container_add (
        GTK_CONTAINER (content_area),
        comp_editor_page_get_widget ((CompEditorPage *) te->priv->task_details_page));
    gtk_widget_show_all (gtk_bin_get_child (GTK_BIN (te->priv->task_details_window)));
    comp_editor_append_page (
        editor, COMP_EDITOR_PAGE (te->priv->task_details_page), NULL, FALSE);

    action_group = comp_editor_get_action_group (editor, "individual");
    gtk_action_group_add_actions (
        action_group, task_entries,
        G_N_ELEMENTS (task_entries), te);

    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;
    ECal *client;
    GSList *attendees = NULL;

    priv = TASK_EDITOR (editor)->priv;

    priv->updating = TRUE;

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

    client = comp_editor_get_client (editor);

    /* 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);
            task_page_add_attendee (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)) {
            EAccountList *accounts;
            EAccount *account;
            EIterator *it;

            accounts = itip_addresses_get ();
            for (it = e_list_get_iterator ((EList *)accounts);
                e_iterator_is_valid (it);
                e_iterator_next (it)) {
                EMeetingAttendee *ia;

                account = (EAccount*)e_iterator_get (it);

                ia = e_meeting_store_find_attendee (priv->model, account->id->address, &row);
                if (ia != NULL)
                    e_meeting_attendee_set_edit_level (ia, E_MEETING_ATTENDEE_EDIT_STATUS);
            }
            g_object_unref (it);
        } else if (e_cal_get_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 (comp, client));

    priv->updating = FALSE;
}

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

    priv = TASK_EDITOR (editor)->priv;

    /* 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;

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

        client = e_meeting_store_get_client (priv->model);
        result = itip_send_comp (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 ECal
 *
 * 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 (ECal *client,
                 EShell *shell,
                 CompEditorFlags flags)
{
    g_return_val_if_fail (E_IS_CAL (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);
    }

}