path: root/calendar/gui/dialogs/meeting-page.c

/* Evolution calendar - Main page of the task editor dialog
 *
 * Copyright (C) 2001 Ximian, Inc.
 *
 * Authors: Federico Mena-Quintero <federico@ximian.com>
 *          Miguel de Icaza <miguel@ximian.com>
 *          Seth Alves <alves@hungry.com>
 *          JP Rosevear <jpr@ximian.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
 */

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

#include <liboaf/liboaf.h>
#include <gtk/gtknotebook.h>
#include <gtk/gtkradiobutton.h>
#include <gtk/gtksignal.h>
#include <gtk/gtktable.h>
#include <gtk/gtktogglebutton.h>
#include <gtk/gtkvbox.h>
#include <glade/glade.h>
#include <gal/widgets/e-unicode.h>
#include <widgets/misc/e-dateedit.h>
#include <widgets/meeting-time-sel/e-meeting-time-sel.h>
#include <e-util/e-dialog-widgets.h>
#include "../Evolution-Addressbook-SelectNames.h"
#include "comp-editor-util.h"
#include "meeting-page.h"


#define SELECT_NAMES_OAFID "OAFIID:GNOME_Evolution_Addressbook_SelectNames"

/* Private part of the MeetingPage structure */
struct _MeetingPagePrivate {
    /* Glade XML data */
    GladeXML *xml;

    /* Widgets from the Glade file */
    GtkWidget *main;

    EMeetingTimeSelector *selector;
    GtkWidget *table;
    
    /* Other widgets */
    GtkWidget *rb1[2];
    GtkWidget *rb2[2];
    
    /* For handling the invite button */
    GNOME_Evolution_Addressbook_SelectNames corba_select_names;

    gboolean updating;
};



static void meeting_page_class_init (MeetingPageClass *class);
static void meeting_page_init (MeetingPage *mpage);
static void meeting_page_destroy (GtkObject *object);

static GtkWidget *meeting_page_get_widget (CompEditorPage *page);
static void meeting_page_fill_widgets (CompEditorPage *page, CalComponent *comp);
static void meeting_page_fill_component (CompEditorPage *page, CalComponent *comp);
static void meeting_page_set_summary (CompEditorPage *page, const char *summary);
static void meeting_page_set_dates (CompEditorPage *page, CompEditorPageDates *dates);

static CompEditorPageClass *parent_class = NULL;



/**
 * meeting_page_get_type:
 * 
 * Registers the #MeetingPage class if necessary, and returns the type ID
 * associated to it.
 * 
 * Return value: The type ID of the #MeetingPage class.
 **/
GtkType
meeting_page_get_type (void)
{
    static GtkType meeting_page_type;

    if (!meeting_page_type) {
        static const GtkTypeInfo meeting_page_info = {
            "MeetingPage",
            sizeof (MeetingPage),
            sizeof (MeetingPageClass),
            (GtkClassInitFunc) meeting_page_class_init,
            (GtkObjectInitFunc) meeting_page_init,
            NULL, /* reserved_1 */
            NULL, /* reserved_2 */
            (GtkClassInitFunc) NULL
        };

        meeting_page_type = 
            gtk_type_unique (TYPE_COMP_EDITOR_PAGE,
                     &meeting_page_info);
    }

    return meeting_page_type;
}

/* Class initialization function for the task page */
static void
meeting_page_class_init (MeetingPageClass *class)
{
    CompEditorPageClass *editor_page_class;
    GtkObjectClass *object_class;

    editor_page_class = (CompEditorPageClass *) class;
    object_class = (GtkObjectClass *) class;

    parent_class = gtk_type_class (TYPE_COMP_EDITOR_PAGE);

    editor_page_class->get_widget = meeting_page_get_widget;
    editor_page_class->fill_widgets = meeting_page_fill_widgets;
    editor_page_class->fill_component = meeting_page_fill_component;
    editor_page_class->set_summary = meeting_page_set_summary;
    editor_page_class->set_dates = meeting_page_set_dates;

    object_class->destroy = meeting_page_destroy;
}

/* Object initialization function for the task page */
static void
meeting_page_init (MeetingPage *mpage)
{
    MeetingPagePrivate *priv;

    priv = g_new0 (MeetingPagePrivate, 1);
    mpage->priv = priv;

    priv->xml = NULL;

    priv->main = NULL;
    priv->selector = NULL;

    priv->updating = FALSE;
}

/* Destroy handler for the task page */
static void
meeting_page_destroy (GtkObject *object)
{
    MeetingPage *mpage;
    MeetingPagePrivate *priv;

    g_return_if_fail (object != NULL);
    g_return_if_fail (IS_MEETING_PAGE (object));

    mpage = MEETING_PAGE (object);
    priv = mpage->priv;

    if (priv->xml) {
        gtk_object_unref (GTK_OBJECT (priv->xml));
        priv->xml = NULL;
    }

    g_free (priv);
    mpage->priv = NULL;

    if (GTK_OBJECT_CLASS (parent_class)->destroy)
        (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}



/* get_widget handler for the task page */
static GtkWidget *
meeting_page_get_widget (CompEditorPage *page)
{
    MeetingPage *mpage;
    MeetingPagePrivate *priv;

    mpage = MEETING_PAGE (page);
    priv = mpage->priv;

    return priv->main;
}

/* Fills the widgets with default values */
static void
clear_widgets (MeetingPage *mpage)
{
    MeetingPagePrivate *priv;

    priv = mpage->priv;
}

/* fill_widgets handler for the task page */
static void
meeting_page_fill_widgets (CompEditorPage *page, CalComponent *comp)
{
    MeetingPage *mpage;
    MeetingPagePrivate *priv;
    CalComponentDateTime dtstart, dtend;
    struct icaltimetype start, end;
    mpage = MEETING_PAGE (page);
    priv = mpage->priv;

    priv->updating = TRUE;
    
    /* Clean the screen */
    clear_widgets (mpage);
    
    /* Selector */
    cal_component_get_dtstart (comp, &dtstart);
    cal_component_get_dtend (comp, &dtend);
    start = icaltime_as_zone (*dtstart.value, dtstart.tzid);
    end = icaltime_as_zone (*dtend.value, dtend.tzid);
    e_meeting_time_selector_set_meeting_time (priv->selector,
                          start.year,
                          start.month,
                          start.day,
                          start.hour,
                          start.minute,
                          end.year,
                          end.month,
                          end.day,
                          end.hour,
                          end.minute);
    cal_component_free_datetime (&dtstart);
    cal_component_free_datetime (&dtend);

    priv->updating = FALSE;
}

/* fill_component handler for the task page */
static void
meeting_page_fill_component (CompEditorPage *page, CalComponent *comp)
{
#if 0
    MeetingPage *mpage;
    MeetingPagePrivate *priv;
    CalComponentDateTime date;
    time_t t;
    char *url;
    
    mpage = MEETING_PAGE (page);
    priv = mpage->priv;

    /* Completed Date. */
    date.value = g_new (struct icaltimetype, 1);
    date.tzid = NULL;

    t = e_date_edit_get_time (E_DATE_EDIT (priv->completed_date));
    if (t != -1) {
        *date.value = icaltime_from_timet (t, FALSE);
        cal_component_set_completed (comp, date.value);
    } else {
        cal_component_set_completed (comp, NULL);
    }

    g_free (date.value);

    /* URL. */
    url = e_dialog_editable_get (priv->url);
    cal_component_set_url (comp, url);
    if (url)
        g_free (url);
#endif
}

/* set_summary handler for the task page */
static void
meeting_page_set_summary (CompEditorPage *page, const char *summary)
{
#if 0
    MeetingPage *mpage;
    MeetingPagePrivate *priv;
    gchar *s;
    
    mpage = MEETING_PAGE (page);
    priv = mpage->priv;

    s = e_utf8_to_gtk_string (priv->summary, summary);
    gtk_label_set_text (GTK_LABEL (priv->summary), s);
    g_free (s);
#endif
}

static void
meeting_page_set_dates (CompEditorPage *page, CompEditorPageDates *dates)
{
    MeetingPage *mpage;
    MeetingPagePrivate *priv;

    mpage = MEETING_PAGE (page);
    priv = mpage->priv;

//  comp_editor_date_label (dates, priv->date_time);
}



/* Gets the widgets from the XML file and returns if they are all available. */
static gboolean
get_widgets (MeetingPage *mpage)
{
    MeetingPagePrivate *priv;

    priv = mpage->priv;

#define GW(name) glade_xml_get_widget (priv->xml, name)

    priv->main = GW ("meeting-page");
    g_assert (priv->main);
    gtk_widget_ref (priv->main);
    gtk_widget_unparent (priv->main);

    priv->selector = E_MEETING_TIME_SELECTOR (GW ("selector"));
    priv->table = GW ("status-table");
    
#undef GW

    return (priv->selector 
        && priv->table);
}

/* Creates the radio buttons in the given container */
static void
create_radio_buttons (GtkWidget *box, GtkWidget **button1, GtkWidget **button2)
{
    GtkWidget *rb1, *rb2;
    GSList *grp;

    /* The radio buttions to change views */
    rb1 = gtk_radio_button_new_with_label (NULL,
                           "Show attendee scheduling");
    gtk_widget_show (rb1);

    grp = gtk_radio_button_group (GTK_RADIO_BUTTON (rb1));
    rb2 = gtk_radio_button_new_with_label (grp, "Show attendee status");
    gtk_widget_show (rb2);
    
    gtk_box_pack_start (GTK_BOX (box), rb1, FALSE, FALSE, 0);
    gtk_box_pack_start (GTK_BOX (box), rb2, FALSE, FALSE, 0);

    *button1 = rb1;
    *button2 = rb2;
}

/* Callback used when the start or end date widgets change.  We check that the
 * start date < end date and we set the "all day task" button as appropriate.
 */
static void
date_changed_cb (EDateEdit *dedit, gpointer data)
{
#if 0
    MeetingPage *mpage;
    MeetingPagePrivate *priv;
    CompEditorPageDates dates;

    mpage = MEETING_PAGE (data);
    priv = mpage->priv;

    if (priv->updating)
        return;

    dates.start = 0;
    dates.end = 0;
    dates.due = 0;
    dates.complete = e_date_edit_get_time (E_DATE_EDIT (priv->completed_date));
    
    /* Notify upstream */
    comp_editor_page_notify_dates_changed (COMP_EDITOR_PAGE (mpage), &dates);
#endif
}

/* This is called when any field is changed; it notifies upstream. */
static void
field_changed_cb (GtkWidget *widget, gpointer data)
{
    MeetingPage *mpage;
    MeetingPagePrivate *priv;
    
    mpage = MEETING_PAGE (data);
    priv = mpage->priv;
    
    if (!priv->updating)
        comp_editor_page_notify_changed (COMP_EDITOR_PAGE (mpage));
}

static gboolean
get_select_name_dialog (MeetingPage *mpage) 
{
    MeetingPagePrivate *priv;
    CORBA_Environment ev;
    
    priv = mpage->priv;

    if (priv->corba_select_names != CORBA_OBJECT_NIL)
        return TRUE;
    
    CORBA_exception_init (&ev);

    priv->corba_select_names = oaf_activate_from_id (SELECT_NAMES_OAFID, 0, NULL, &ev);

    /* OAF seems to be broken -- it can return a CORBA_OBJECT_NIL without
           raising an exception in `ev'.  */
    if (ev._major != CORBA_NO_EXCEPTION || priv->corba_select_names == CORBA_OBJECT_NIL) {
        g_warning ("Cannot activate -- %s", SELECT_NAMES_OAFID);
        CORBA_exception_free (&ev);
        return FALSE;
    }

    CORBA_exception_free (&ev);

    return TRUE;
}

/* Function called to invite more people */
static void
invite_cb (GtkWidget *widget, gpointer data) 
{
    MeetingPage *mpage;
    MeetingPagePrivate *priv;
    CORBA_Environment ev;
    
    mpage = MEETING_PAGE (data);
    priv = mpage->priv;
    
    if (!get_select_name_dialog (mpage))
        return;
    
    CORBA_exception_init (&ev);

    GNOME_Evolution_Addressbook_SelectNames_addSection (
        priv->corba_select_names, "Required", "Required", &ev);

    GNOME_Evolution_Addressbook_SelectNames_activateDialog (
        priv->corba_select_names, "Test", &ev);

    CORBA_exception_free (&ev);

    if (!priv->updating)
        comp_editor_page_notify_changed (COMP_EDITOR_PAGE (mpage));
}

static void
page_toggle_cb (GtkWidget *widget, gpointer data)
{
    MeetingPage *mpage;
    MeetingPagePrivate *priv;
    gboolean active;
    
    mpage = MEETING_PAGE (data);
    priv = mpage->priv;

    active = GTK_TOGGLE_BUTTON (widget)->active;
    if (active)
        gtk_notebook_set_page (GTK_NOTEBOOK (priv->main), 0);
    else
        gtk_notebook_set_page (GTK_NOTEBOOK (priv->main), 1);

    gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (priv->rb1[0]), active);
    gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (priv->rb1[1]), !active);
    gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (priv->rb2[0]), active);
    gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (priv->rb2[1]), !active);
}
    
/* Hooks the widget signals */
static void
init_widgets (MeetingPage *mpage)
{
    MeetingPagePrivate *priv;

    priv = mpage->priv;

    /* Selector */
    gtk_signal_connect (GTK_OBJECT (priv->selector->invite_button), 
                "clicked", GTK_SIGNAL_FUNC (invite_cb), mpage);

    /* Radio buttons */
    gtk_signal_connect (GTK_OBJECT (priv->rb1[0]), "toggled", 
                GTK_SIGNAL_FUNC (page_toggle_cb), mpage);
    gtk_signal_connect (GTK_OBJECT (priv->rb2[0]), "toggled", 
                GTK_SIGNAL_FUNC (page_toggle_cb), mpage);
    
#if 0
    /* Completed Date */
    gtk_signal_connect (GTK_OBJECT (priv->completed_date), "changed",
                GTK_SIGNAL_FUNC (date_changed_cb), mpage);

#endif
}



/**
 * meeting_page_construct:
 * @mpage: An task details page.
 * 
 * Constructs an task page by loading its Glade data.
 * 
 * Return value: The same object as @mpage, or NULL if the widgets could not 
 * be created.
 **/
MeetingPage *
meeting_page_construct (MeetingPage *mpage)
{
    MeetingPagePrivate *priv;
    GtkWidget *vbox;
    
    priv = mpage->priv;

    priv->xml = glade_xml_new (EVOLUTION_GLADEDIR 
                   "/meeting-page.glade", NULL);
    if (!priv->xml) {
        g_message ("meeting_page_construct(): "
               "Could not load the Glade XML file!");
        return NULL;
    }

    if (!get_widgets (mpage)) {
        g_message ("meeting_page_construct(): "
               "Could not find all widgets in the XML file!");
        return NULL;
    }

    /* Stuff for the second page */
    vbox = gtk_vbox_new (FALSE, 2);
    gtk_widget_show (vbox);
    gtk_table_attach (GTK_TABLE (priv->table), vbox, 0, 1, 0, 1,
              GTK_EXPAND | GTK_FILL, GTK_FILL, 2, 0);

    /* The radio buttions to change views on first page */
    create_radio_buttons (priv->selector->attendees_title_bar_vbox, 
                  &priv->rb1[0], &priv->rb1[1]);

    /* The radio buttions to change views on second page */
    create_radio_buttons (vbox, &priv->rb2[0], &priv->rb2[1]);

    /* Init the widget signals */
    init_widgets (mpage);

    return mpage;
}

/**
 * meeting_page_new:
 * 
 * Creates a new task details page.
 * 
 * Return value: A newly-created task details page, or NULL if the page could
 * not be created.
 **/
MeetingPage *
meeting_page_new (void)
{
    MeetingPage *mpage;

    mpage = gtk_type_new (TYPE_MEETING_PAGE);
    if (!meeting_page_construct (mpage)) {
        gtk_object_unref (GTK_OBJECT (mpage));
        return NULL;
    }

    return mpage;
}

GtkWidget *meeting_page_create_selector (void);

GtkWidget *
meeting_page_create_selector (void)
{
    GtkWidget *sel;

    sel = e_meeting_time_selector_new ();

    return sel;
}