path: root/composer/e-msg-composer-select-file.c

/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* e-msg-composer-select-file.c
 *
 * 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
 * published by the Free Software Foundation; either version 2 of the
 * 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.
 *
 * Author: Ettore Perazzoli
 */

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

#include <gtk/gtkbox.h>
#include <gtk/gtkcheckbutton.h>
#include <gtk/gtkfilesel.h>
#include <gtk/gtkmain.h>
#include <gtk/gtksignal.h>
#include <gal/widgets/e-file-selection.h>
#include "e-msg-composer-select-file.h"


typedef struct _FileSelectionInfo {
    GtkWidget *widget;
    GtkToggleButton *inline_checkbox;
    gboolean multiple;
    GPtrArray *selected_files;
} FileSelectionInfo;

static void
confirm (FileSelectionInfo *info)
{
    char **file_list;
    int i;

    file_list = e_file_selection_get_filenames (E_FILE_SELECTION (info->widget));

    if (!info->selected_files)
        info->selected_files = g_ptr_array_new ();

    for (i = 0; file_list[i]; i++)
        g_ptr_array_add (info->selected_files, file_list[i]);

    g_free (file_list);
    
    gtk_widget_hide (info->widget);
    
    gtk_main_quit ();
}

static void
cancel (FileSelectionInfo *info)
{
    g_assert (info->selected_files == NULL);
    
    gtk_widget_hide (info->widget);
    
    gtk_main_quit ();
}


/* Callbacks.  */

static void
ok_clicked_cb (GtkWidget *widget, void *data)
{
    FileSelectionInfo *info;
    
    info = (FileSelectionInfo *) data;
    confirm (info);
}

static void
cancel_clicked_cb (GtkWidget *widget, void *data)
{
    FileSelectionInfo *info;
    
    info = (FileSelectionInfo *) data;
    cancel (info);
}

static int
delete_event_cb (GtkWidget *widget, GdkEventAny *event, void *data)
{
    FileSelectionInfo *info;
    
    info = (FileSelectionInfo *) data;
    cancel (info);
    
    return TRUE;
}

static void
composer_hide_cb (GtkWidget *widget, gpointer user_data)
{
    FileSelectionInfo *info;
    
    info = (FileSelectionInfo *) user_data;
    if (GTK_WIDGET_VISIBLE (info->widget))
        cancel (info);
}

/* Setup.  */

static FileSelectionInfo *
create_file_selection (EMsgComposer *composer, gboolean multiple)
{
    FileSelectionInfo *info;
    GtkWidget *widget;
    GtkWidget *ok_button;
    GtkWidget *cancel_button;
    GtkWidget *inline_checkbox;
    GtkWidget *box;
    char *path;
    
    info = g_new (FileSelectionInfo, 1);
    
    widget = e_file_selection_new (NULL);
    path = g_strdup_printf ("%s/", g_get_home_dir ());
    gtk_file_selection_set_filename (GTK_FILE_SELECTION (widget), path);
    g_free (path);
    gtk_window_set_wmclass (GTK_WINDOW (widget), "fileselection", 
                "Evolution:composer");
    
    gtk_object_set (GTK_OBJECT (widget),
            "multiple", multiple,
            NULL);
    
    ok_button     = GTK_FILE_SELECTION (widget)->ok_button;
    cancel_button = GTK_FILE_SELECTION (widget)->cancel_button;
    
    gtk_signal_connect (GTK_OBJECT (ok_button),
                "clicked", GTK_SIGNAL_FUNC (ok_clicked_cb), info);
    gtk_signal_connect (GTK_OBJECT (cancel_button),
                "clicked", GTK_SIGNAL_FUNC (cancel_clicked_cb), info);
    gtk_signal_connect (GTK_OBJECT (widget), "delete_event",
                GTK_SIGNAL_FUNC (delete_event_cb), info);
    
    gtk_signal_connect (GTK_OBJECT (composer), "hide",
                GTK_SIGNAL_FUNC (composer_hide_cb), info);
    
    inline_checkbox = gtk_check_button_new_with_label (_("Suggest automatic display of attachment"));
    box = gtk_widget_get_ancestor (GTK_FILE_SELECTION (widget)->selection_entry, GTK_TYPE_BOX);
    gtk_box_pack_end (GTK_BOX (box), inline_checkbox, FALSE, FALSE, 4);
    
    info->widget          = widget;
    info->multiple        = multiple;
    info->selected_files  = NULL;
    info->inline_checkbox = GTK_TOGGLE_BUTTON (inline_checkbox);
    
    return info;
}

static void
file_selection_info_destroy_notify (void *data)
{
    FileSelectionInfo *info;
    int i;
    
    info = (FileSelectionInfo *) data;
    
    if (info->widget != NULL)
        gtk_widget_destroy (GTK_WIDGET (info->widget));
    
    if (info->selected_files) {
        for (i = 0; i < info->selected_files->len; i++)
            g_free (info->selected_files->pdata[i]);
        
        g_ptr_array_free (info->selected_files, TRUE);
    }
    
    g_free (info);
}


static GPtrArray *
select_file_internal (EMsgComposer *composer,
              const char *title,
              gboolean multiple,
              gboolean *inline_p)
{
    FileSelectionInfo *info;
    GPtrArray *files;
    
    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), NULL);
    
    info = gtk_object_get_data (GTK_OBJECT (composer),
                    "e-msg-composer-file-selection-info");
    
    if (info == NULL) {
        info = create_file_selection (composer, multiple);
        gtk_object_set_data_full (GTK_OBJECT (composer),
                      "e-msg-composer-file-selection-info", info,
                      file_selection_info_destroy_notify);
    }
    
    if (GTK_WIDGET_VISIBLE (info->widget))
        return NULL;        /* Busy!  */
    
    gtk_window_set_title (GTK_WINDOW (info->widget), title);
    if (inline_p)
        gtk_widget_show (GTK_WIDGET (info->inline_checkbox));
    else
        gtk_widget_hide (GTK_WIDGET (info->inline_checkbox));
    gtk_widget_show (info->widget);
    
    GDK_THREADS_ENTER();
    gtk_main ();
    GDK_THREADS_LEAVE();
    
    files = info->selected_files;
    info->selected_files = NULL;
    
    if (inline_p) {
        *inline_p = gtk_toggle_button_get_active (info->inline_checkbox);
        gtk_toggle_button_set_active (info->inline_checkbox, FALSE);
    }
    
    return files;
}

/**
 * e_msg_composer_select_file:
 * @composer: a composer
 * @title: the title for the file selection dialog box
 *
 * This pops up a file selection dialog box with the given title
 * and allows the user to select a file.
 *
 * Return value: the selected filename, or %NULL if the user
 * cancelled.
 **/
char *
e_msg_composer_select_file (EMsgComposer *composer,
                const char *title)
{
    GPtrArray *files;
    char *filename = NULL;
    
    files = select_file_internal (composer, title, FALSE, NULL);
    if (files) {
        filename = files->pdata[0];
        g_ptr_array_free (files, FALSE);
    }
    
    return filename;
}

GPtrArray *
e_msg_composer_select_file_attachments (EMsgComposer *composer,
                    gboolean *inline_p)
{
    return select_file_internal (composer, _("Attach a file"), TRUE, inline_p);
}