path: root/executive-summary/component/e-summary.c

/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* e-summary.c
 *
 * Authors: Iain Holmes <iain@ximian.com>
 *
 * Copyright (C) 2000  Ximian, Inc.
 *
 * 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 <glib.h>
#include <libgnome/gnome-defs.h>
#include <libgnome/gnome-i18n.h>
#include <libgnome/gnome-util.h>
#include <bonobo/bonobo-object.h>
#include <bonobo/bonobo-event-source.h>
#include <bonobo/bonobo-listener.h>
#include <bonobo/bonobo-property-bag.h>
#include <bonobo/bonobo-property-control.h>
#include <bonobo/bonobo-storage.h>
#include <bonobo/bonobo-stream-client.h>

#include <gtkhtml/gtkhtml.h>
#include <gtkhtml/gtkhtml-embedded.h>
#include <gtkhtml/gtkhtml-stream.h>
#include <gtkhtml/htmlengine.h>
#include <gtkhtml/htmlselection.h>

#include <gal/util/e-util.h>
#include <gal/widgets/e-gui-utils.h>
#include <libgnomevfs/gnome-vfs.h>

#include "e-summary.h"
#include "e-summary-factory.h"
#include "e-summary-util.h"
#include "e-summary-url.h"

#include <evolution-services/executive-summary-component.h>
#include <evolution-services/executive-summary-component-factory-client.h>
#include <evolution-services/executive-summary-html-view.h>

#define PARENT_TYPE (gtk_vbox_get_type ())

#define STORAGE_TYPE "fs"
#define IID_FILE "oaf.id"
#define DATA_FILE "data"

/* From component-factory.c */
extern char *evolution_dir;

static GtkObjectClass *e_summary_parent_class;

struct _ESummaryPrivate {
    GNOME_Evolution_Shell shell;
    GNOME_Evolution_ShellView shell_view_interface;

    GtkWidget *html_scroller;
    GtkWidget *html;

    guint idle;

    GtkHTMLStream *stream;
    gboolean grabbed;

    GList *window_list;

    char *header;
    int header_len;
    char *footer;
    int footer_len;
};

static gboolean on_object_requested (GtkHTML *html,
                     GtkHTMLEmbedded *eb,
                     ESummary *summary);
static void e_summary_save_state (ESummary *esummary,
                  const char *path);
static void e_summary_load_state (ESummary *esummary,
                  const char *path);

/* GtkObject methods */

static void
e_summary_destroy (GtkObject *object)
{
    ESummary *esummary = E_SUMMARY (object);
    ESummaryPrivate *priv;
    GList *l;
    char *prefix;

    priv = esummary->private;
    if (priv == NULL)
        return;

    prefix = g_concat_dir_and_file (evolution_dir, "config/");
    e_summary_save_state (esummary, prefix);
    g_free (prefix);

    e_summary_prefs_free (esummary->prefs);
    for (l = priv->window_list; l; l = l->next)
        e_summary_window_free (l->data);
    g_list_free (priv->window_list);

    g_free (priv->header);
    g_free (priv->footer);
    g_free (esummary->private);
    esummary->private = NULL;

    e_summary_parent_class->destroy (object);
}

static void
e_summary_class_init (GtkObjectClass *object_class)
{
    object_class->destroy = e_summary_destroy;
    
    e_summary_parent_class = gtk_type_class (PARENT_TYPE);
}

static void
e_summary_start_load (ESummary *esummary)
{
    ESummaryPrivate *priv;

    g_return_if_fail (esummary != NULL);
    g_return_if_fail (IS_E_SUMMARY (esummary));

    priv = esummary->private;

    priv->stream = gtk_html_begin (GTK_HTML (priv->html));

    /* HTML hacks */
    /* Hack to stop page returning to the top */
    GTK_HTML (priv->html)->engine->newPage = FALSE;
    /* Hack to make the border width of the page 0 */
    GTK_HTML (priv->html)->engine->leftBorder = 0;
    GTK_HTML (priv->html)->engine->rightBorder = 0;
    GTK_HTML (priv->html)->engine->topBorder = 0;
    GTK_HTML (priv->html)->engine->bottomBorder = 0;
}

static void
load_default_header (ESummary *esummary)
{
    ESummaryPrivate *priv;
    char *def = "<html><body bgcolor=\"#ffffff\">"
        "<table width=\"100%\"><tr><td align=\"right\">"
        "<img src=\"ccsplash.png\"></td></tr></table>"
        "<table><tr><td><a href=\"exec://bug-buddy\"><img src=\"file://gnome-spider.png\" width=\"24\" height=\"24\" border=\"0\">"
        "</a></td><td><a href=\"exec://bug-buddy\">Submit a bug report"
        "</a></td></tr></table><hr>";

    g_return_if_fail (esummary != NULL);
    g_return_if_fail (IS_E_SUMMARY (esummary));

    priv = esummary->private;

    g_return_if_fail (priv->stream != NULL);

    gtk_html_write (GTK_HTML (priv->html), priv->stream, def, strlen (def));
}
static void
load_default_footer (ESummary *esummary)
{
    ESummaryPrivate *priv;
    char *footer = "<hr><p align=\"right\">All Executive Summary comments to <a href=\"mailto:iain@ximian.com\">Iain Holmes (iain@ximian.com)</a></p></body></html>";

    g_return_if_fail (esummary != NULL);
    g_return_if_fail (IS_E_SUMMARY (esummary));

    priv = esummary->private;
    gtk_html_write (GTK_HTML (priv->html), priv->stream, 
            footer, strlen (footer));
}

static void
e_summary_end_load (ESummary *esummary)
{
    ESummaryPrivate *priv;

    g_return_if_fail (esummary != NULL);
    g_return_if_fail (IS_E_SUMMARY (esummary));

    priv = esummary->private;
    gtk_html_end (GTK_HTML (priv->html), priv->stream, GTK_HTML_STREAM_OK);

    priv->stream = NULL;
}

static void
e_summary_init (ESummary *esummary)
{
    GdkColor bgcolour = {0, 0xdfff, 0xdfff, 0xffff};
    ESummaryPrivate *priv;

    esummary->prefs = NULL;
    esummary->tmp_prefs = NULL;
    esummary->private = g_new0 (ESummaryPrivate, 1);
    priv = esummary->private;

    priv->window_list = NULL;
    priv->idle = 0;

    /* HTML widget */
    priv->html_scroller = gtk_scrolled_window_new (NULL, NULL);
    gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->html_scroller),
                    GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
    priv->html = gtk_html_new ();
    gtk_html_set_editable (GTK_HTML (priv->html), FALSE);
    gtk_html_set_default_content_type (GTK_HTML (priv->html),
                       "text/html; charset=utf-8");
    gtk_html_set_default_background_color (GTK_HTML (priv->html), &bgcolour);
    gtk_signal_connect (GTK_OBJECT (priv->html), "url-requested",
                GTK_SIGNAL_FUNC (e_summary_url_request), esummary);
    gtk_signal_connect (GTK_OBJECT (priv->html), "object-requested", 
                GTK_SIGNAL_FUNC (on_object_requested), esummary); 
    gtk_signal_connect (GTK_OBJECT (priv->html), "link-clicked",
                GTK_SIGNAL_FUNC (e_summary_url_click), esummary);
    gtk_signal_connect (GTK_OBJECT (priv->html), "on-url",
                GTK_SIGNAL_FUNC (e_summary_url_over), esummary);

    gtk_container_add (GTK_CONTAINER (priv->html_scroller), priv->html);
    gtk_widget_show_all (priv->html_scroller);

    e_summary_queue_rebuild (esummary);

    /* Pack stuff */
    gtk_box_pack_start (GTK_BOX (esummary), priv->html_scroller, 
                TRUE, TRUE, 0);
}

E_MAKE_TYPE (e_summary, "ESummary", ESummary, e_summary_class_init,
         e_summary_init, PARENT_TYPE);

GtkWidget *
e_summary_new (const GNOME_Evolution_Shell shell)
{
    ESummary *esummary;
    ESummaryPrivate *priv;
    char *path;

    esummary = gtk_type_new (e_summary_get_type ());
    priv = esummary->private;

    priv->shell = shell;

    /* Restore services */
    path = g_concat_dir_and_file (evolution_dir, 
                      "config");
    e_summary_load_state (esummary, path);
    g_free (path);

    return GTK_WIDGET (esummary);
}

#if 0
static void
control_unrealize (GtkHTMLEmbedded *eb,
           GtkWidget *widget)
{
    g_print ("Removing\n");
}

static void
being_unrealized (GtkWidget *widget,
          GtkHTMLEmbedded *eb)
{
    g_warning ("Widget is being unrealized");
    gtk_container_remove (GTK_CONTAINER (eb), widget);
}

static void
being_realized (GtkWidget *widget,
        gpointer user_data)
{
    gdk_window_ref (widget->window);
}
#endif

static gboolean
on_object_requested (GtkHTML *html,
             GtkHTMLEmbedded *eb,
             ESummary *esummary)
{
#if 0
    static GtkWidget *widget = NULL;
    int id;

    if (sscanf (eb->classid, "cid:%d", &id) != 1) {
        g_warning ("Could not get the view id: eb->classid = %s",
               eb->classid);
        return FALSE;
    }

    if (widget == NULL || !GTK_IS_WIDGET (widget)) {
        g_print ("Create new\n");
            widget = executive_summary_component_view_get_widget (view);  
/*          widget = gtk_button_new_with_label ("Hello?");  */
        gtk_signal_connect (GTK_OBJECT (widget), "realize",
                    GTK_SIGNAL_FUNC (being_realized), NULL);
        gtk_signal_connect (GTK_OBJECT (widget), "unrealize",
                    GTK_SIGNAL_FUNC (being_unrealized), eb);
        g_print ("New widget: %p\n", GTK_BIN (widget)->child);
    } else {
        g_print ("No new\n");
    }

    if (widget == NULL) {
        g_warning ("View %d has no GtkWidget.", id);
        return FALSE;
    }

    gtk_signal_connect (GTK_OBJECT (eb), "unrealize",
                GTK_SIGNAL_FUNC (control_unrealize), widget);
    gtk_widget_show_all (widget);
    gtk_widget_ref (widget);

    if (widget->parent == NULL)
        gtk_container_add (GTK_CONTAINER (eb), widget);

#endif
    return TRUE;
}

/* Generates the window controls and works out
   if they should be disabled or not */
static char *
make_control_html (ESummaryWindow *window,
           int row, 
           int col,
           int numwindows)
{
    char *html, *tmp;
    int id = GPOINTER_TO_INT (window);
    gboolean config;

    config = TRUE;

    if (window->propertycontrol == CORBA_OBJECT_NIL)
        config = FALSE;

    html = g_strdup_printf ("<table><tr><td><a href=\"close://%d\">"
                "<img src=\"service-close.png\" border=\"0\">"
                "</a></td></tr><tr><td>", id);

    tmp = html;
    if (!config) {
        html = g_strdup_printf ("%s<img src=\"service-configure.png\">"
                    "</td></tr></table>", tmp);
    } else {
        html = g_strdup_printf ("%s<a href=\"configure://%d\">"
                    "<img src=\"service-configure.png\" border=\"0\">"
                    "</a></td></tr></table>", tmp, id);
    }
    g_free (tmp);

    return html;
}

static void
e_summary_display_window_title (ESummary *esummary,
                ESummaryWindow *window,
                int row,
                int col,
                int numwindows)
{
    ESummaryPrivate *priv;
    char *title_html;
    char *control_html;
    char *title_colour[2] = {"bac1b6",
                 "cdd1c7"};

    priv = esummary->private;

    control_html = make_control_html (window, row, col, numwindows);
    title_html = g_strdup_printf ("<td bgcolor=\"#%s\">"
                      "<table width=\"100%%\" height=\"100%%\"><tr><td>"
                      "<img src=\"%s\" height=\"48\"></td>"
                      "<td nowrap align=\"center\" width=\"100%%\">"
                      "<b>%s</b></td><td>%s</td></tr></table></td>",
                      title_colour[col % 2], window->icon, 
                      window->title, control_html);
    g_free (control_html);
    
    gtk_html_write (GTK_HTML (priv->html), priv->stream, title_html,
            strlen (title_html));
    g_free (title_html);
}
    
static void
e_summary_display_window (ESummary *esummary,
              ESummaryWindow *window,
              int row,
              int col,
              int numwindows)
{
    ESummaryPrivate *priv;
    char *footer = "</td>";
    char *header;
    char *colour[2] = {"e6e8e4", 
               "edeeeb"};

    priv = esummary->private;

    header = g_strdup_printf ("<td bgcolor=\"%s\" valign=\"top\">", colour[col % 2]);
    gtk_html_write (GTK_HTML (priv->html), priv->stream, header, strlen (header));
    g_free (header);

    if (window->html != CORBA_OBJECT_NIL) {
        char *html = NULL;
        CORBA_Environment ev;

        CORBA_exception_init (&ev);
        html = GNOME_Evolution_Summary_HTMLView_getHtml (window->html,
                                 &ev);
        if (ev._major != CORBA_NO_EXCEPTION) {
            CORBA_exception_free (&ev);
            g_warning ("Cannot get HTML.");
            if (html)
                CORBA_free (html);
        } else {
            CORBA_exception_free (&ev);
            
            gtk_html_write (GTK_HTML (priv->html), priv->stream,
                    html, strlen (html));
            CORBA_free (html);
        }
    } else {
#if 0
        char *body_cid;

        body_cid = g_strdup_printf ("<object classid=\"cid:%d\"></object>", id);
        gtk_html_write (GTK_HTML (priv->html), priv->stream,
                body_cid, strlen (body_cid));
        g_free (body_cid);
#endif
    }

    gtk_html_write (GTK_HTML (priv->html), priv->stream,
            footer, strlen (footer));
}

static int
e_summary_rebuild_page (ESummary *esummary)
{
    ESummaryPrivate *priv;
    GList *windows;
    char *service_table = "<table numcols=\"%d\" cellspacing=\"0\" cellpadding=\"0\" border=\"0\" height=\"100%%\" width=\"100%%\">";
    char *tmp;
    int numwindows, numrows;
    int i, j, k;
    int columns;

    g_return_val_if_fail (esummary != NULL, FALSE);
    g_return_val_if_fail (IS_E_SUMMARY (esummary), FALSE);

    priv = esummary->private;

    if (priv->idle == 0) {
        g_warning ("esummary->private->idle == 0! This means that "
               "e_summary_rebuild_page was called by itself and "
               "not queued. You should use e_summary_queue_rebuild "
               "instead.");
        return FALSE;
    }

    /* If there is a selection, don't redraw the page so that the selection
       isn't cleared */
    if (GTK_HTML (priv->html)->in_selection == TRUE ||
        html_engine_is_selection_active (GTK_HTML (priv->html)->engine) == TRUE)
        return FALSE;

    gtk_layout_freeze (GTK_LAYOUT (priv->html));
    e_summary_start_load (esummary);
    
    if (priv->header == NULL || *priv->header == '\0') {
        load_default_header (esummary);
    } else {
        gtk_html_write (GTK_HTML (priv->html), priv->stream,
                priv->header, priv->header_len);
    }

    /* Load the start of the services */
    tmp = g_strdup_printf (service_table, esummary->prefs->columns);
    gtk_html_write (GTK_HTML (priv->html), priv->stream, tmp, strlen (tmp));
    g_free (tmp);
    /* Load each of the services */
    numwindows = g_list_length (priv->window_list);

    columns = esummary->prefs->columns;

    windows = priv->window_list;
    if (numwindows % columns == 0)
        numrows = numwindows / columns;
    else
        numrows = numwindows / columns + 1;

    for (i = 0; i < numrows; i++) {
        GList *window = windows;
        
        /* Do the same row twice: 
           Once for the title, once for the contents */
        for (j = 0; j < 2; j++) {
            int limit;
            
            gtk_html_write (GTK_HTML (priv->html), priv->stream,
                    "<tr>", 4);
                /* For each window on row i */
            limit = MIN (columns, (numwindows - (i * columns)));
            for (k = 0; k < limit; k++) {
                
                if (window == NULL)
                    break;

                if (j == 0) {
                    e_summary_display_window_title (esummary,
                                    window->data,
                                    k, k, 
                                    numwindows);
                } else {
                    e_summary_display_window (esummary,
                                  window->data,
                                  k, k,
                                  numwindows);
                }
                
                if (window != NULL)
                    window = window->next;
                
                if (window == NULL)
                    break;
            }
            
            gtk_html_write (GTK_HTML (priv->html), priv->stream,
                    "</tr>", 5);
            if (j == 0)
                window = windows;
            else {
                if (window)
                    windows = window;
                else 
                    break;
            }
        }
    }
    gtk_html_write (GTK_HTML (priv->html), priv->stream, "</tr></table>", 13);
    
    if (priv->footer == NULL || *priv->footer == '\0') {
        load_default_footer (esummary);
    } else {
        gtk_html_write (GTK_HTML (priv->html), priv->stream,
                priv->footer, priv->footer_len);
    }
    
    e_summary_end_load (esummary);
    gtk_layout_thaw (GTK_LAYOUT (priv->html));

    priv->idle = 0;
    return FALSE;
}

/* This is the function that should be called instead of 
   e_summary_queue_rebuild. This prevents multiple 
   rebuilds happening together. */
void
e_summary_queue_rebuild (ESummary *esummary)
{
    ESummaryPrivate *priv;

    priv = esummary->private;
    if (priv->idle != 0)
        return;

    priv->idle = g_idle_add ((GSourceFunc) e_summary_rebuild_page, esummary);
}

static void
listener_event (BonoboListener *listener,
        char *event_name,
        BonoboArg *event_data,
        CORBA_Environment *ev,
        gpointer user_data)
{
    ESummaryWindow *window = (ESummaryWindow *) user_data;

    if (strcmp (event_name, "Bonobo/Property:change:window_title") == 0) {
        if (window->title != NULL)
            g_free (window->title);

        window->title = g_strdup (BONOBO_ARG_GET_STRING (event_data));
        e_summary_queue_rebuild (window->esummary);
    } else if (strcmp (event_name, "Bonobo/Property:change:window_icon") == 0) {
        if (window->icon != NULL)
            g_free (window->icon);

        window->icon = g_strdup (BONOBO_ARG_GET_STRING (event_data));
        e_summary_queue_rebuild (window->esummary);
    } else if (strcmp (event_name, EXECUTIVE_SUMMARY_HTML_VIEW_HTML_CHANGED) == 0) {
        e_summary_queue_rebuild (window->esummary);
    }

    return;
}
        
ESummaryWindow *
e_summary_add_service (ESummary *esummary,
               GNOME_Evolution_Summary_Component component,
               const char *iid)
{
    ESummaryWindow *window;
    ESummaryPrivate *priv;
    Bonobo_Unknown unknown = CORBA_OBJECT_NIL;
    Bonobo_Listener listener;
    CORBA_Environment ev;

    g_return_val_if_fail (esummary != NULL, NULL);
    g_return_val_if_fail (IS_E_SUMMARY (esummary), NULL);
    g_return_val_if_fail (component != CORBA_OBJECT_NIL, NULL);

    priv = esummary->private;

    window = g_new0 (ESummaryWindow, 1);
    window->component = component;
    window->iid = g_strdup (iid);
    window->esummary = esummary;

    /* See what interfaces our component supports */
    CORBA_exception_init (&ev);
    unknown = Bonobo_Unknown_queryInterface (component,
                         "IDL:Bonobo/Control:1.0", &ev);
    window->control = (Bonobo_Control) unknown;

    unknown = Bonobo_Unknown_queryInterface (component,
                         "IDL:GNOME/Evolution/Summary/HTMLView:1.0", 
                         &ev);
    window->html = (GNOME_Evolution_Summary_HTMLView) unknown;

    /* Check at least one of the above interfaces was supported */
    if (window->html == CORBA_OBJECT_NIL &&
        window->control == CORBA_OBJECT_NIL) {
        CORBA_Environment ev2;
        g_warning ("This component does not support either" 
               "Bonobo/Control:1.0 or GNOME/Evolution/Summary/HTMLView:1.0");

        CORBA_exception_init (&ev2);
        CORBA_Object_release (component, &ev2);
        CORBA_exception_free (&ev2);

        g_free (window);
        return NULL;
    }

    unknown = Bonobo_Unknown_queryInterface (component,
                         "IDL:Bonobo/PropertyBag:1.0",
                         &ev);
    window->propertybag = (Bonobo_PropertyBag) unknown;

    window->event_source = Bonobo_Unknown_queryInterface(window->propertybag,
                                 "IDL:Bonobo/EventSource:1.0", &ev);
    if (window->event_source == CORBA_OBJECT_NIL) {
        g_warning ("There is no Bonobo::EventSource interface");

        /* FIXME: Free whatever objects exist */
        g_free (window);
        return NULL;
    }

    window->listener = bonobo_listener_new (NULL, NULL);
    gtk_signal_connect (GTK_OBJECT (window->listener), "event_notify",
                GTK_SIGNAL_FUNC (listener_event), window);
    listener = bonobo_object_corba_objref (BONOBO_OBJECT (window->listener));
    window->listener_id = Bonobo_EventSource_addListener (window->event_source, listener, &ev);

    unknown = Bonobo_Unknown_queryInterface (component,
                         "IDL:Bonobo/PersistStream:1.0",
                         &ev);
    window->persiststream = (Bonobo_PersistStream) unknown;
    
    unknown = Bonobo_Unknown_queryInterface (component,
                         "IDL:Bonobo/PropertyControl:1.0",
                         &ev);
    window->propertycontrol = (Bonobo_PropertyControl) unknown;

    /* Cache the title and icon */
    window->title = bonobo_property_bag_client_get_value_string (window->propertybag,
                                     "window_title", 
                                     NULL);
    g_print ("title: %s\n", window->title);
    window->icon = bonobo_property_bag_client_get_value_string (window->propertybag,
                                    "window_icon", NULL);
    g_print ("icon: %s\n", window->icon);

    CORBA_exception_free (&ev);
    priv->window_list = g_list_append (priv->window_list, window);

    return window;
}


ESummaryWindow *
e_summary_embed_service_from_id (ESummary *esummary,
                 const char *obj_id)
{
    GNOME_Evolution_Summary_Component component;
    ExecutiveSummaryComponentFactoryClient *client;
    ESummaryWindow *window;
    
    client = executive_summary_component_factory_client_new (obj_id);
    
    component = executive_summary_component_factory_client_create_view (client);

    /* Don't need the client any more */
    bonobo_object_unref (BONOBO_OBJECT (client));

    window = e_summary_add_service (esummary, component, obj_id);
    e_summary_queue_rebuild (esummary);
    
    return window;
}

void
e_summary_window_free (ESummaryWindow *window)
{
    CORBA_Environment ev;

    g_return_if_fail (window != NULL);

    g_free (window->iid);
    g_free (window->icon);
    g_free (window->title);

    CORBA_exception_init (&ev);

    if (window->control != CORBA_OBJECT_NIL) {
        bonobo_object_release_unref (window->control, &ev);
    }

    if (window->event_source != CORBA_OBJECT_NIL) {
        Bonobo_EventSource_removeListener (window->event_source,
                           window->listener_id,
                           &ev);
        if (ev._major != CORBA_NO_EXCEPTION) {
            g_warning ("CORBA ERROR: %s", CORBA_exception_id (&ev));
        }
        bonobo_object_release_unref (window->event_source, &ev);
    }

    bonobo_object_release_unref (window->propertybag, &ev);
    bonobo_object_release_unref (window->persiststream, &ev);
    bonobo_object_release_unref (window->propertycontrol, &ev);
    bonobo_object_unref (BONOBO_OBJECT (window->listener));
    bonobo_object_release_unref (window->html, &ev);

    bonobo_object_release_unref (window->component, &ev);
    CORBA_exception_free (&ev);
    g_free (window);
}

void
e_summary_remove_window (ESummary *esummary,
             ESummaryWindow *window)
{
    ESummaryPrivate *priv;

    g_return_if_fail (esummary != NULL);
    g_return_if_fail (IS_E_SUMMARY (esummary));
    g_return_if_fail (window != NULL);

    priv = esummary->private;
    priv->window_list = g_list_remove (priv->window_list, window);
    e_summary_window_free (window);
}
    
void
e_summary_set_shell_view_interface (ESummary *esummary,
                    GNOME_Evolution_ShellView svi)
{
    ESummaryPrivate *priv;

    g_return_if_fail (esummary != NULL);
    g_return_if_fail (IS_E_SUMMARY (esummary));
    g_return_if_fail (svi != CORBA_OBJECT_NIL);

    priv = esummary->private;
    priv->shell_view_interface = svi;
}

/* Wrappers for GNOME_Evolution_ShellView */
void
e_summary_set_message (ESummary *esummary,
               const char *message,
               gboolean busy)
{
    ESummaryPrivate *priv;
    GNOME_Evolution_ShellView svi;
    CORBA_Environment ev;

    g_return_if_fail (esummary != NULL);
    g_return_if_fail (IS_E_SUMMARY (esummary));

    priv = esummary->private;

    svi = priv->shell_view_interface;
    if (svi == NULL)
        return;

    CORBA_exception_init (&ev);
    if (message != NULL)
        GNOME_Evolution_ShellView_setMessage (svi, message, busy, &ev);
    else 
        GNOME_Evolution_ShellView_setMessage (svi, "", busy, &ev);
    CORBA_exception_free (&ev);
}

void
e_summary_unset_message (ESummary *esummary)
{
    ESummaryPrivate *priv;
    GNOME_Evolution_ShellView svi;
    CORBA_Environment ev;

    g_return_if_fail (esummary != NULL);
    g_return_if_fail (IS_E_SUMMARY (esummary));

    priv = esummary->private;

    svi = priv->shell_view_interface;
    if (svi == NULL)
        return;

    CORBA_exception_init (&ev);
    GNOME_Evolution_ShellView_unsetMessage (svi, &ev);
    CORBA_exception_free (&ev);
}

void
e_summary_change_current_view (ESummary *esummary,
                   const char *uri)
{
    ESummaryPrivate *priv;
    GNOME_Evolution_ShellView svi;
    CORBA_Environment ev;

    g_return_if_fail (esummary != NULL);
    g_return_if_fail (IS_E_SUMMARY (esummary));

    priv = esummary->private;

    svi = priv->shell_view_interface;
    if (svi == NULL)
        return;

    CORBA_exception_init (&ev);
    GNOME_Evolution_ShellView_changeCurrentView (svi, uri, &ev);
    CORBA_exception_free (&ev);
}

void
e_summary_set_title (ESummary *esummary,
             const char *title)
{
    ESummaryPrivate *priv;
    GNOME_Evolution_ShellView svi;
    CORBA_Environment ev;

    g_return_if_fail (esummary != NULL);
    g_return_if_fail (IS_E_SUMMARY (esummary));

    priv = esummary->private;

    svi = priv->shell_view_interface;
    if (svi == NULL)
        return;

    CORBA_exception_init (&ev);
    GNOME_Evolution_ShellView_setTitle (svi, title, &ev);
    CORBA_exception_free (&ev);
}

static void
e_summary_load_page (ESummary *esummary)
{
    ESummaryPrivate *priv;
    GnomeVFSHandle *handle = NULL;
    GnomeVFSResult result;
    GtkWidget *toplevel;
    GString *string;
    char *str, *comment;
    char *filename;

    g_return_if_fail (esummary != NULL);
    g_return_if_fail (IS_E_SUMMARY (esummary));
    
    priv = esummary->private;

    /* Pass NULL to reset the page to the default */
    if ((esummary->prefs->page) == NULL || 
        *(esummary->prefs->page) == '\0') {
        filename = g_concat_dir_and_file (EVOLUTION_DATADIR, "/evolution/summary.html");
    } else {
        filename = g_strdup (esummary->prefs->page);
    }

    toplevel = gtk_widget_get_toplevel (GTK_WIDGET (esummary));
    string = g_string_new ("");
    result = gnome_vfs_open (&handle, filename, GNOME_VFS_OPEN_READ);
    if (result != GNOME_VFS_OK) {
        e_notice (GTK_WINDOW (toplevel), GNOME_MESSAGE_BOX_WARNING,
              _("Cannot open the HTML file:\n%s"), filename);
        g_free (filename);
        return;
    }

    g_free (filename);
    while (1) {
        char buffer[4096];
        GnomeVFSFileSize size;

        memset (buffer, 0x00, 4096);
        result = gnome_vfs_read (handle, buffer, 4096, &size);
        if (result != GNOME_VFS_OK && result != GNOME_VFS_ERROR_EOF) {
            e_notice (GTK_WINDOW (toplevel), GNOME_MESSAGE_BOX_WARNING, 
                  _("Error reading data:\n%s"),
                  gnome_vfs_result_to_string (result));
            gnome_vfs_close (handle);
            return;
        }
        if (size == 0)
            break; /* EOF */

        string = g_string_append (string, buffer);
    }

    gnome_vfs_close (handle);
    str = string->str;
    g_string_free (string, FALSE);

    comment = strstr (str, "<!-- EVOLUTION EXECUTIVE SUMMARY SERVICES DO NOT REMOVE -->");
    if (comment == NULL) {
        e_notice (NULL, GNOME_MESSAGE_BOX_WARNING, 
              _("File does not have a place for the services.\n"));
        g_free (str);
        return;
    }

    if (priv->header != NULL)
        g_free (priv->header);
    priv->header = g_strndup (str, comment - str);
    priv->header_len = strlen (priv->header);

    if (priv->footer != NULL)
        g_free (priv->footer);
    priv->footer = g_strdup (comment);
    priv->footer_len = strlen (priv->footer);
    g_free (str);
}

static char *
load_component_id_stream_read (Bonobo_Stream stream,
                   CORBA_Environment *ev)
{
    Bonobo_Stream_iobuf *buffer;
    GString *str;
    char *ans;

    str = g_string_sized_new (256);
#define READ_CHUNK_SIZE 65536
    do {
        int i;
        Bonobo_Stream_read (stream, READ_CHUNK_SIZE, &buffer, ev);
        if (ev->_major != CORBA_NO_EXCEPTION)
            return NULL;

        /* FIXME: make better PLEASE!!!*/
        for (i = 0; i < buffer->_length; i++)
            g_string_append_c (str, buffer->_buffer[i]);

        if (buffer->_length <= 0)
            break;
        CORBA_free (buffer);
    } while (1);
#undef READ_CHUNK_SIZE
    CORBA_free (buffer);

    ans = str->str;
    g_string_free (str, FALSE);

    return ans;
}

static char *
load_component_id (Bonobo_Storage corba_storage,
           CORBA_Environment *ev)
{
    Bonobo_Stream corba_stream;
    char *iid;

    corba_stream = Bonobo_Storage_openStream (corba_storage, IID_FILE,
                          Bonobo_Storage_READ, ev);
    if (ev->_major != CORBA_NO_EXCEPTION)
        return NULL;

    if (corba_stream) {
        iid = load_component_id_stream_read (corba_stream, ev);
        Bonobo_Unknown_unref (corba_stream, ev);
        CORBA_Object_release (corba_stream, ev);
    } else {
        g_warning ("Cannot find `%s'", IID_FILE);
        return NULL;
    }

    return iid;
}

static void
load_component (ESummary *esummary,
        BonoboStorage *storage,
        int index)
{
    char *curdir;
    char *iid;
    Bonobo_Storage corba_subdir;
    Bonobo_Storage corba_storage;
    ESummaryWindow *window;
    CORBA_Environment ev;

    curdir = g_strdup_printf ("%08d", index);
    corba_storage = bonobo_object_corba_objref (BONOBO_OBJECT (storage));
    CORBA_exception_init (&ev);

    corba_subdir = Bonobo_Storage_openStorage (corba_storage, curdir,
                           Bonobo_Storage_READ, &ev);
    if (corba_subdir == CORBA_OBJECT_NIL) {
        g_free (curdir);
        return;
    }

    iid = load_component_id (corba_subdir, &ev);

    if (iid) {
        Bonobo_Stream corba_stream;

        window = e_summary_embed_service_from_id (esummary, iid);
        if (window) {
            if (window->persiststream) {
                corba_stream = Bonobo_Storage_openStream 
                    (corba_subdir,
                     DATA_FILE,
                     Bonobo_Storage_READ |
                     Bonobo_Storage_CREATE, &ev);
                if (ev._major != CORBA_NO_EXCEPTION) {
                    g_print ("Gah");
                    return;
                }

                Bonobo_PersistStream_load (window->persiststream,
                               corba_stream, 
                               "", &ev);
                if (ev._major != CORBA_NO_EXCEPTION)
                    g_warning ("Could not load `%s'", iid);

                bonobo_object_release_unref (corba_stream, &ev);
            }
        }

        g_free (iid);
    }

    bonobo_object_release_unref (corba_subdir, &ev);
    CORBA_exception_free (&ev);
    g_free (curdir);
}

void
e_summary_reconfigure (ESummary *esummary)
{
    e_summary_load_page (esummary);
    e_summary_queue_rebuild (esummary);
}

static void
e_summary_load_state (ESummary *esummary,
              const char *path)
{
    char *fullpath;
    BonoboStorage *storage;
    Bonobo_Storage corba_storage;
    Bonobo_Storage_DirectoryList *list;
    CORBA_Environment ev;
    int i;

    g_return_if_fail (esummary != NULL);
    g_return_if_fail (IS_E_SUMMARY (esummary));

    fullpath = g_strdup_printf ("%s/Executive-Summary", path);
    storage = bonobo_storage_open (STORAGE_TYPE, fullpath,
                       Bonobo_Storage_READ |
                       Bonobo_Storage_WRITE, 
                       0664);
    if (storage != NULL) {
        CORBA_exception_init (&ev);
        
        corba_storage = bonobo_object_corba_objref (BONOBO_OBJECT (storage));
        list = Bonobo_Storage_listContents (corba_storage, "/", 0, &ev);
        if (list) {
            for (i = 0; i < list->_length; i++)
                load_component (esummary, storage, i);
            
            CORBA_free (list);
        }

        bonobo_object_unref (BONOBO_OBJECT (storage));
        CORBA_exception_free (&ev);
    }

    g_free (fullpath);

    /* Load the preferences */
    if (esummary->prefs != NULL)
        e_summary_prefs_free (esummary->prefs);

    esummary->prefs = e_summary_prefs_load (path);
    e_summary_reconfigure (esummary);
}

static void
save_component (BonoboStorage *storage,
        ESummaryWindow *window,
        int index)
{
    char *curdir = g_strdup_printf ("%08d", index);
    Bonobo_Storage corba_storage;
    Bonobo_Storage corba_subdir;
    CORBA_Environment ev;

    corba_storage = bonobo_object_corba_objref (BONOBO_OBJECT (storage));
    CORBA_exception_init (&ev);

    corba_subdir = Bonobo_Storage_openStorage (corba_storage, curdir,
                           Bonobo_Storage_CREATE|
                           Bonobo_Storage_WRITE|
                           Bonobo_Storage_READ, &ev);
    if (ev._major != CORBA_NO_EXCEPTION) {
        g_warning ("Cannot create '%s'", curdir);
        g_free (curdir);
    } else {
        Bonobo_Stream corba_stream;

        g_free (curdir);
        corba_stream = Bonobo_Storage_openStream
            (corba_subdir, IID_FILE, 
             Bonobo_Storage_CREATE|
             Bonobo_Storage_READ|
             Bonobo_Storage_WRITE, &ev);

        if (ev._major != CORBA_NO_EXCEPTION) {
            g_warning ("EEK: %s", CORBA_exception_id (&ev));
            if (corba_subdir != CORBA_OBJECT_NIL)
                bonobo_object_release_unref (corba_subdir, &ev);
            CORBA_exception_free (&ev);
            return;
        }

        bonobo_stream_client_write_string (corba_stream,
                           window->iid, TRUE, &ev);
        bonobo_object_release_unref (corba_stream, &ev);

        corba_stream = Bonobo_Storage_openStream (corba_subdir, DATA_FILE,
                              Bonobo_Storage_CREATE,
                              &ev);
        if (window->persiststream != CORBA_OBJECT_NIL) {
            Bonobo_PersistStream_save (window->persiststream,
                           corba_stream, "", &ev);
            if (ev._major != CORBA_NO_EXCEPTION) {
                g_warning ("Unable to save %s", window->iid);
            }
        }

        bonobo_object_release_unref (corba_stream, &ev);
    }

    if (corba_subdir != CORBA_OBJECT_NIL)
        bonobo_object_release_unref (corba_subdir, &ev);
    CORBA_exception_free (&ev);
}

static void
e_summary_save_state (ESummary *esummary,
              const char *path)
{
    ESummaryPrivate *priv;
    BonoboStorage *storage;
    Bonobo_Storage corba_storage;
    CORBA_Environment ev;
    GList *windows;
    char *fullpath;
    int i;

    g_return_if_fail (esummary != NULL);
    g_return_if_fail (IS_E_SUMMARY (esummary));

    priv = esummary->private;

    fullpath = g_strdup_printf("%s/Executive-Summary", path);
    g_print ("fullpath: %s\n", fullpath);

    e_summary_rm_dir (fullpath);

    storage = bonobo_storage_open (STORAGE_TYPE, fullpath,
                       Bonobo_Storage_READ |
                       Bonobo_Storage_WRITE |
                       Bonobo_Storage_CREATE, 0660);
    g_return_if_fail (storage);

    CORBA_exception_init (&ev);
    corba_storage = bonobo_object_corba_objref (BONOBO_OBJECT (storage));
    
    i = 0;
    for (windows = priv->window_list; windows; windows = windows->next) {
        save_component (storage, windows->data, i);
        g_print ("IID: %s\n", ((ESummaryWindow *)windows->data)->iid);
        i++;
    }

    Bonobo_Storage_commit (corba_storage, &ev);
    CORBA_exception_free (&ev);
    bonobo_object_unref (BONOBO_OBJECT (storage));

    e_summary_prefs_save (esummary->prefs, path);
    g_free (fullpath);
}

void
e_summary_window_move_left (ESummary *esummary,
                ESummaryWindow *window)
{
    ESummaryPrivate *priv;
    GList *win_item, *grandparent;
    int position;

    priv = esummary->private;

    /* Need to cache this location */
    win_item = g_list_find (priv->window_list, window);
    
    /* Find the item 2 previous. */
    if (win_item->prev == NULL)
        return; /* Item was first, can't be moved left */

    grandparent = win_item->prev->prev;

    /* Remove it from the list */
    priv->window_list = g_list_remove_link (priv->window_list, win_item);

    /* Insert it after the grandparent */
    position = g_list_position (priv->window_list, grandparent);
    priv->window_list = g_list_insert (priv->window_list, win_item->data,
                       position + 1);
    g_list_free_1 (win_item);
}

void
e_summary_window_move_right (ESummary *esummary,
                 ESummaryWindow *window)
{
    ESummaryPrivate *priv;
    GList *win_item, *child;
    int position;

    priv = esummary->private;

    win_item = g_list_find (priv->window_list, window);

    if (win_item->next == NULL)
        return;

    child = win_item->next;
    
    priv->window_list = g_list_remove_link (priv->window_list, win_item);
    
    position = g_list_position (priv->window_list, child);
    priv->window_list = g_list_insert (priv->window_list, win_item->data,
                       position + 1);
    g_list_free_1 (win_item);
}

void
e_summary_window_move_up (ESummary *esummary,
              ESummaryWindow *window)
{
    ESummaryPrivate *priv;
    GList *win_item;
    int position;

    priv = esummary->private;

    win_item = g_list_find (priv->window_list, window);
    
    position = g_list_position (priv->window_list, win_item);
    priv->window_list = g_list_remove_link (priv->window_list, win_item);

    priv->window_list = g_list_insert (priv->window_list, win_item->data,
                       position - 3);
    g_list_free_1 (win_item);
}

void
e_summary_window_move_down (ESummary *esummary,
                ESummaryWindow *window)
{
    ESummaryPrivate *priv;
    GList *win_item;
    int position;

    priv = esummary->private;

    win_item = g_list_find (priv->window_list, window);

    position = g_list_position (priv->window_list, win_item);
    priv->window_list = g_list_remove_link (priv->window_list, win_item);

    priv->window_list = g_list_insert (priv->window_list, win_item->data,
                       position + 3);
}