path: root/shell/importer/intelligent.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* intelligent.c
 * 
 * Authors: 
 *    Iain Holmes  <iain@ximian.com>
 *
 * Copyright 2001 Ximian, Inc. (www.ximian.com)
 *
 * This program is free software; you can redistribute it and/or 
 * modify it under the terms of version 2 of the GNU General Public 
 * License as published by the Free Software Foundation.
 *
 * 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 "intelligent.h"

#include <glib.h>

#include <gtk/gtkdrawingarea.h>
#include <gtk/gtkbox.h>
#include <gtk/gtkhbox.h>
#include <gtk/gtkvbox.h>
#include <gtk/gtkcheckbutton.h>
#include <gtk/gtklabel.h>
#include <gtk/gtkmain.h>
#include <gtk/gtkobject.h>
#include <gtk/gtktogglebutton.h>
#include <gtk/gtkwidget.h>
#include <gtk/gtkwindow.h>
#include <gtk/gtkframe.h>
#include <gtk/gtkclist.h>
#include <gtk/gtknotebook.h>
#include <gtk/gtkscrolledwindow.h>
#include <gtk/gtkdialog.h>
#include <gtk/gtkstock.h>

#include <libgnome/gnome-config.h>
/*#include <libgnome/gnome-util.h>*/
#include <libgnome/gnome-i18n.h>

#include <bonobo/bonobo-object.h>
#include <bonobo/bonobo-widget.h>

#include "intelligent.h"
#include "GNOME_Evolution_Importer.h"

/* Prototypes */

void intelligent_importer_init (void);

/* End prototypes */

typedef struct {
    CORBA_Object object;
    Bonobo_Control control;
    GtkWidget *widget;

    char *name;
    char *blurb;
    char *iid;
} IntelligentImporterData;

typedef struct {
    GtkWidget *dialog;
    GtkWidget *placeholder;
    GtkWidget *clist;
    BonoboWidget *current;

    GList *importers;

    int running;
} IntelligentImporterDialog;

typedef struct {
    CORBA_Object importer;
    char *iid;
} SelectedImporterData;

static void
free_importer_dialog (IntelligentImporterDialog *d)
{
    GList *l;

    for (l = d->importers; l; l = l->next) {
        CORBA_Environment ev;
        IntelligentImporterData *data;

        data = l->data;

        CORBA_exception_init (&ev);
        if (data->object != CORBA_OBJECT_NIL) 
            bonobo_object_release_unref (data->object, &ev);

        g_free (data->iid);
        g_free (data->name);
        g_free (data->blurb);
        g_free (data);
    }

    g_list_free (d->importers);
    gtk_widget_destroy (d->dialog);
    g_free (d);
}

static void
start_importers (GList *selected)
{
    CORBA_Environment ev;

    CORBA_exception_init (&ev);
    for (; selected; selected = selected->next) {
        SelectedImporterData *selection = selected->data;

        GNOME_Evolution_IntelligentImporter_importData (selection->importer, &ev);
        if (ev._major != CORBA_NO_EXCEPTION) {
            g_warning ("Error importing %s\n%s", selection->iid,
                   CORBA_exception_id (&ev));
        }
    }
    CORBA_exception_free (&ev);
}

static GList *
get_intelligent_importers (void)
{
    Bonobo_ServerInfoList *info_list;
    GList *iids_ret = NULL;
    CORBA_Environment ev;
    int i;

    CORBA_exception_init (&ev);
    info_list = bonobo_activation_query ("repo_ids.has ('IDL:GNOME/Evolution/IntelligentImporter:" BASE_VERSION "')", NULL, &ev);
    CORBA_exception_free (&ev);

    for (i = 0; i < info_list->_length; i++) {
        const Bonobo_ServerInfo *info;
        
        info = info_list->_buffer + i;
        iids_ret = g_list_prepend (iids_ret, g_strdup (info->iid));
    }

    return iids_ret;
}

static void
select_row_cb (GtkCList *clist,
           int row,
           int column,
           GdkEvent *ev,
           IntelligentImporterDialog *d)
{
    gtk_notebook_set_page (GTK_NOTEBOOK (d->placeholder), row);
}

static void
unselect_row_cb (GtkCList *clist,
         int row,
         int column,
         GdkEvent *ev,
         IntelligentImporterDialog *d)
{
    gtk_notebook_set_page (GTK_NOTEBOOK (d->placeholder), d->running);
}

static IntelligentImporterDialog *
create_gui (GList *importers)
{
    GtkWidget *dialog, *clist, *sw, *label;
    GtkWidget *hbox, *vbox, *dummy;
    IntelligentImporterDialog *d;
    GList *l;
    int running = 0;

    d = g_new (IntelligentImporterDialog, 1);
    d->dialog = dialog = gtk_dialog_new();
    gtk_window_set_title((GtkWindow *)dialog, _("Importers"));
    dummy = gtk_button_new_from_stock(GTK_STOCK_CONVERT);
    gtk_button_set_label((GtkButton *)dummy, _("Import"));
    gtk_dialog_add_action_widget((GtkDialog *)dialog, dummy, GTK_RESPONSE_ACCEPT);

    dummy = gtk_button_new_from_stock(GTK_STOCK_NO);
    gtk_button_set_label((GtkButton *)dummy, _("Don't import"));
    gtk_dialog_add_action_widget((GtkDialog *)dialog, dummy, GTK_RESPONSE_REJECT);

    dummy = gtk_button_new_from_stock(GTK_STOCK_CANCEL);
    gtk_button_set_label((GtkButton *)dummy, _("Don't ask me again"));
    gtk_dialog_add_action_widget((GtkDialog *)dialog, dummy, GTK_RESPONSE_CANCEL);
    d->importers = NULL;
    d->current = NULL;

    d->clist = clist = gtk_clist_new (1);
    gtk_clist_set_selection_mode (GTK_CLIST (d->clist), GTK_SELECTION_MULTIPLE);
    
    label = gtk_label_new (_("Evolution can import data from the following files:"));
    gtk_misc_set_alignment(GTK_MISC(label), 0, .5);
    gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->vbox), label,
                TRUE, TRUE, 0);

    hbox = gtk_hbox_new (FALSE, 2);
    gtk_container_set_border_width (GTK_CONTAINER (hbox), 2);

    gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->vbox), hbox,
                TRUE, TRUE, 0);

    sw = gtk_scrolled_window_new (NULL, NULL);
    gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW(sw), 
                    GTK_POLICY_AUTOMATIC, 
                    GTK_POLICY_AUTOMATIC);
    gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (sw), GTK_SHADOW_IN);
    gtk_widget_set_size_request (sw, 300, 150);
    gtk_container_add (GTK_CONTAINER (sw), clist);
    gtk_box_pack_start (GTK_BOX (hbox), sw, TRUE, TRUE, 0);
    
    vbox = gtk_vbox_new (FALSE, 0);
    gtk_container_set_border_width (GTK_CONTAINER (vbox), 2);
    gtk_box_pack_start (GTK_BOX (hbox), vbox, TRUE, TRUE, 0);

    d->placeholder = gtk_notebook_new ();
    gtk_notebook_set_show_tabs (GTK_NOTEBOOK (d->placeholder), FALSE);
    gtk_box_pack_start (GTK_BOX (vbox), d->placeholder, TRUE, TRUE, 0);

    for (l = importers; l; l = l->next) {
        IntelligentImporterData *data;
        CORBA_Environment ev;
        gboolean dontaskagain, can_run;
        char *text[1], *prefix;

        /* Check if we want to show this one again */
        prefix = g_strdup_printf ("=%s/evolution/config/Shell=/intelligent-importers/", g_get_home_dir ());
        gnome_config_push_prefix (prefix);
        g_free (prefix);
        
        dontaskagain = gnome_config_get_bool (l->data);
        gnome_config_pop_prefix ();
        
        if (dontaskagain)
            continue;

        data = g_new0 (IntelligentImporterData, 1);
        data->iid = g_strdup (l->data);

        CORBA_exception_init (&ev);
        data->object = bonobo_activation_activate_from_id ((char *) data->iid, 0, 
                             NULL, &ev);
        if (ev._major != CORBA_NO_EXCEPTION) {
            g_warning ("Could not start %s: %s", data->iid,
                   CORBA_exception_id (&ev));
            CORBA_exception_free (&ev);

            /* Clean up the IntelligentImporterData */
            g_free (data->iid);
            g_free (data);
            continue;
        }

        CORBA_exception_free (&ev);
        if (data->object == CORBA_OBJECT_NIL) {
            g_warning ("Could not activate_component %s", data->iid);
            g_free (data->iid);
            g_free (data);
            continue;
        }

        CORBA_exception_init (&ev);
        can_run = GNOME_Evolution_IntelligentImporter_canImport (data->object,
                                     &ev);
        if (ev._major != CORBA_NO_EXCEPTION) {
            g_warning ("Could not get canImport(%s): %s", 
                   data->iid, CORBA_exception_id (&ev));
            bonobo_object_release_unref (data->object, &ev);
            CORBA_exception_free (&ev);
            g_free (data->iid);
            g_free (data);
            continue;
        }
        CORBA_exception_free (&ev);
        
        if (can_run == FALSE) {
            CORBA_exception_init (&ev);
            bonobo_object_release_unref (data->object, &ev);
            CORBA_exception_free (&ev);
            g_free (data->iid);
            g_free (data);
            continue;
        }

        running++;

        data->name = g_strdup (GNOME_Evolution_IntelligentImporter__get_importername (data->object, &ev));
        if (ev._major != CORBA_NO_EXCEPTION) {
            g_warning ("Could not get name(%s): %s", 
                   data->iid, CORBA_exception_id (&ev));
            bonobo_object_release_unref (data->object, &ev);
            CORBA_exception_free (&ev);
            g_free (data->iid);
            g_free (data);
            continue;
        }

        data->blurb = g_strdup (GNOME_Evolution_IntelligentImporter__get_message (data->object, &ev));
        if (ev._major != CORBA_NO_EXCEPTION) {
            g_warning ("Could not get message(%s): %s", 
                   data->iid, CORBA_exception_id (&ev));
            bonobo_object_release_unref (data->object, &ev);
            CORBA_exception_free (&ev);
            g_free (data->iid);
            g_free (data->name);
            g_free (data);
            continue;
        }

        data->control = Bonobo_Unknown_queryInterface (data->object,
                                  "IDL:Bonobo/Control:1.0", &ev);
        if (ev._major != CORBA_NO_EXCEPTION) {
            g_warning ("Could not QI for Bonobo/Control:1.0 %s:%s",
                   data->iid, CORBA_exception_id (&ev));
            bonobo_object_release_unref (data->object, &ev);
            CORBA_exception_free (&ev);
            g_free (data->iid);
            g_free (data->name);
            g_free (data->blurb);
            continue;
        }
        if (data->control != CORBA_OBJECT_NIL) {
            data->widget = bonobo_widget_new_control_from_objref (data->control, CORBA_OBJECT_NIL);
            /* Ref this widget so even if we remove it from the
               containers it will always have an extra ref. */
            gtk_widget_show (data->widget);
            gtk_widget_ref (data->widget);
        } else {
            data->widget = gtk_label_new ("");
        }

        CORBA_exception_free (&ev);

        d->importers = g_list_prepend (d->importers, data);
        gtk_notebook_prepend_page (GTK_NOTEBOOK (d->placeholder),
                       data->widget, NULL);
        text[0] = data->name;
        gtk_clist_prepend (GTK_CLIST (clist), text);
    }
    
    d->running = running;
    dummy = gtk_drawing_area_new ();
    gtk_widget_show (dummy);
    gtk_notebook_append_page (GTK_NOTEBOOK (d->placeholder),
                  dummy, NULL);
    /* Set the start to the blank page */
    gtk_notebook_set_page (GTK_NOTEBOOK (d->placeholder), running);

    g_signal_connect((clist), "select-row", 
                G_CALLBACK (select_row_cb), d);
    g_signal_connect((clist), "unselect-row",
                G_CALLBACK (unselect_row_cb), d);

    gtk_widget_show_all (GTK_DIALOG (dialog)->vbox);
    return d;
}

void
intelligent_importer_init (void)
{
    GList *importers, *l, *selected = NULL;
    IntelligentImporterDialog *d;
    char *prefix;
    gboolean dontaskagain;
    int resp;

    prefix = g_strdup_printf ("=%s/evolution/config/Shell=/intelligent-importers/", g_get_home_dir());
    gnome_config_push_prefix (prefix);
    g_free (prefix);
    
    dontaskagain = gnome_config_get_bool ("Dontaskagain=False");
    gnome_config_pop_prefix ();
    
    if (dontaskagain) {
        return;
    }

    importers = get_intelligent_importers ();
    if (importers == NULL)
        return; /* No intelligent importers. Easy :) */

    d = create_gui (importers);
    if (d->running == 0) {
        free_importer_dialog (d);
        return; /* No runnable intelligent importers. */
    }

    resp = gtk_dialog_run((GtkDialog *)d->dialog);
    gtk_widget_destroy(d->dialog);
    switch (resp) {
    case GTK_RESPONSE_ACCEPT:
        /* Make a list of the importers */

        /* FIXME: Sort this list and don't do it a slow way */
        for (l = GTK_CLIST (d->clist)->selection; l; l = l->next) {
            IntelligentImporterData *data;
            SelectedImporterData *new_data;
            CORBA_Environment ev;
            char *iid;

            data = g_list_nth_data (d->importers, GPOINTER_TO_INT (l->data));
            iid = g_strdup (data->iid);

            new_data = g_new (SelectedImporterData, 1);
            new_data->iid = iid;

            /* Reference the remote object, and duplicate the 
               local one. */
            CORBA_exception_init (&ev);
            new_data->importer = bonobo_object_dup_ref (data->object, &ev);
            if (ev._major != CORBA_NO_EXCEPTION) {
                g_warning ("Error duplicating %s\n%s", iid,
                       CORBA_exception_id (&ev));
                g_free (iid);
                CORBA_exception_free (&ev);
                g_free (new_data);
                continue;
            }
            CORBA_exception_free (&ev);

            selected = g_list_prepend (selected, new_data);
        }

        /* Now destroy all the importers, as we've kept references to 
           the ones we need */
        free_importer_dialog (d);

        if (selected != NULL) {
            /* Restart the selected ones */
            start_importers (selected);
            
            /* Free the selected list */
            for (l = selected; l; l = l->next) {
                CORBA_Environment ev;
                SelectedImporterData *selection = l->data;

                CORBA_exception_init (&ev);
                bonobo_object_release_unref (selection->importer, &ev);
                CORBA_exception_free (&ev);

                g_free (selection->iid);
                g_free (selection);
            }
            g_list_free (selected);
        }

        break;
        
    case GTK_RESPONSE_CANCEL: /* Dont ask again */
        prefix = g_strdup_printf ("=%s/evolution/config/Shell=/intelligent-importers/", g_get_home_dir());
        gnome_config_push_prefix (prefix);
        g_free (prefix);
        
        gnome_config_set_bool ("Dontaskagain", TRUE);
        gnome_config_pop_prefix ();

        gnome_config_sync ();
        gnome_config_drop_all ();
        g_print ("Not asking again");
        free_importer_dialog (d);
        break;

    default:
    case GTK_RESPONSE_REJECT: /* No button */
        free_importer_dialog (d);
        break;
    }

    g_list_free (importers);
}