path: root/embed/print-dialog.c

/*
 *  Copyright (C) 2002 Jorn Baayen
 *  Copyright (C) 2003, 2004 Christian Persch
 *  Copyright (C) 2005 Juerg Billeter
 *
 *  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, 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.
 *
 *  $Id$
 */

#include "config.h"

#include "print-dialog.h"
#include "ephy-embed-single.h"
#include "ephy-embed-shell.h"
#include "ephy-file-chooser.h"
#include "ephy-file-helpers.h"
#include "ephy-stock-icons.h"
#include "eel-gconf-extensions.h"
#include "ephy-debug.h"
#include "ephy-gui.h"

#include <unistd.h>
#include <string.h>
#include <stdio.h>
#include <gtk/gtkwindow.h>
#include <gtk/gtkdialog.h>
#include <gtk/gtkentry.h>
#include <gtk/gtkstock.h>
#include <gtk/gtkcombobox.h>
#include <gtk/gtkcellrenderertext.h>
#include <gtk/gtkcelllayout.h>
#include <libgnomevfs/gnome-vfs-utils.h>
#include <glib/gi18n.h>

#include <libgnomeprintui/gnome-print-paper-selector.h>

#define CONF_PRINT_PAGE_TITLE       "/apps/epiphany/dialogs/print_page_title"
#define CONF_PRINT_PAGE_URL     "/apps/epiphany/dialogs/print_page_url"
#define CONF_PRINT_DATE         "/apps/epiphany/dialogs/print_date"
#define CONF_PRINT_PAGE_NUMBERS     "/apps/epiphany/dialogs/print_page_numbers"
#define CONF_PRINT_COLOR        "/apps/epiphany/dialogs/print_color"

#define PRINT_CONFIG_FILENAME "ephy-print-config.xml"

enum
{
    SETUP_WINDOW_PROP,
    PAGE_TITLE_PROP,
    PAGE_URL_PROP,
    PAGE_NUMBERS_PROP,
    DATE_PROP,
    COLOR_PROP,
};

static const
EphyDialogProperty setup_props [] =
{
    { "print_setup_dialog",         NULL,             PT_NORMAL,    0 },
    { "print_page_title_checkbutton",   CONF_PRINT_PAGE_TITLE,    PT_AUTOAPPLY, 0 },
    { "print_page_url_checkbutton",     CONF_PRINT_PAGE_URL,      PT_AUTOAPPLY, 0 },
    { "print_page_numbers_checkbutton", CONF_PRINT_PAGE_NUMBERS,  PT_AUTOAPPLY, 0 },
    { "print_date_checkbutton",     CONF_PRINT_DATE,      PT_AUTOAPPLY, 0 },
    { "print_color_radiobutton",        CONF_PRINT_COLOR,     PT_AUTOAPPLY, 0 },

    { NULL }
};

void
ephy_print_info_free (EmbedPrintInfo *info)
{
    g_return_if_fail (info != NULL);
    
    g_object_unref (info->config);
    
    g_free (info->tempfile);
    
    if (info->cancel_print_id != 0)
        g_signal_handler_disconnect (embed_shell, info->cancel_print_id);

    g_free (info->header_left_string);
    g_free (info->header_center_string);
    g_free (info->header_right_string);
    g_free (info->footer_left_string);
    g_free (info->footer_center_string);
    g_free (info->footer_right_string);
    g_free (info);
}

static GnomePrintConfig *
ephy_print_load_config_from_file (void)
{
    GnomePrintConfig *ephy_print_config = NULL;
    char *file_name, *contents = NULL;

    file_name = g_build_filename (ephy_dot_dir (),
                      PRINT_CONFIG_FILENAME,
                      NULL);
    
    if (g_file_get_contents (file_name, &contents, NULL, NULL))
    {
        ephy_print_config = gnome_print_config_from_string (contents, 0);
        g_free (contents);
    }

    if (ephy_print_config == NULL)
    {
        ephy_print_config = gnome_print_config_default ();
    }

    g_free (file_name);
    
    return ephy_print_config;
}

static void
ephy_print_save_config_to_file (GnomePrintConfig *config)
{
    char *file_name, *str;

    g_return_if_fail (config != NULL);

    str = gnome_print_config_to_string (config, 0);
    if (str == NULL) return;

    file_name = g_build_filename (ephy_dot_dir (), PRINT_CONFIG_FILENAME,
                      NULL);
    
    g_file_set_contents (file_name, str, -1, NULL);

    g_free (file_name);
    g_free (str);
}

EmbedPrintInfo *
ephy_print_get_print_info (void)
{
    EmbedPrintInfo *info;

    info = g_new0 (EmbedPrintInfo, 1);
    
    info->config = ephy_print_load_config_from_file ();
    
    info->range = GNOME_PRINT_RANGE_ALL;
    info->from_page = 1;
    info->to_page = 1;

    info->print_color = ! eel_gconf_get_integer (setup_props[COLOR_PROP].pref);

    info->header_left_string = eel_gconf_get_boolean (setup_props[PAGE_TITLE_PROP].pref) ?
                   g_strdup ("&T") : g_strdup ("");
    info->header_right_string = eel_gconf_get_boolean (setup_props[PAGE_URL_PROP].pref) ?
                    g_strdup ("&U") : g_strdup ("");
    info->footer_left_string = eel_gconf_get_boolean (setup_props[PAGE_NUMBERS_PROP].pref) ?
                   g_strdup ("&PT") : g_strdup ("");
    info->footer_right_string = eel_gconf_get_boolean (setup_props[DATE_PROP].pref) ?
                    g_strdup ("&D") : g_strdup ("");
    info->header_center_string = g_strdup("");
    info->footer_center_string = g_strdup("");

    info->frame_type = 0;

    return info;
}

static void
ephy_print_dialog_response_cb (GtkDialog *dialog,
                   int response,
                   EmbedPrintInfo *info)
{
    if (response == GNOME_PRINT_DIALOG_RESPONSE_PRINT)
    {
        ephy_print_save_config_to_file (info->config);
        
        info->range = gnome_print_dialog_get_range_page (GNOME_PRINT_DIALOG (dialog),
                                 &info->from_page,
                                 &info->to_page);
    }
}

static gboolean
using_pdf_printer (GnomePrintConfig *config)
{
    const guchar *driver;

    driver = gnome_print_config_get (
        config, (const guchar *)"Settings.Engine.Backend.Driver");

    if (driver)
        {
        if (!strcmp ((const gchar *)driver, "gnome-print-pdf"))
            return TRUE;
        else
            return FALSE;
    }

    return FALSE;
}

static gboolean
using_postscript_printer (GnomePrintConfig *config)
{
    const guchar *driver;
    const guchar *transport;

    driver = gnome_print_config_get (
        config, (const guchar *)"Settings.Engine.Backend.Driver");

    transport = gnome_print_config_get (
        config, (const guchar *)"Settings.Transport.Backend");

    if (driver)
    {
        if (strcmp ((const gchar *)driver, "gnome-print-ps") == 0)
            return TRUE;
        else
            return FALSE;
    }
    else if (transport) /* these transports default to PostScript */
    {
        if (strcmp ((const gchar *)transport, "CUPS") == 0)
            return TRUE;
        else if (strcmp ((const gchar *)transport, "LPD") == 0)
            return TRUE;
    }

    return FALSE;
}

gboolean
ephy_print_verify_postscript (GnomePrintDialog *print_dialog)
{
    GnomePrintConfig *config;
    GtkWidget *dialog;
    
    config = gnome_print_dialog_get_config (print_dialog);

    if (using_postscript_printer (config))
        return TRUE;
    
        if (using_pdf_printer (config))
        {
                dialog = gtk_message_dialog_new (
                        GTK_WINDOW (print_dialog), GTK_DIALOG_MODAL,
                        GTK_MESSAGE_ERROR, GTK_BUTTONS_OK,
                        _("Generating PDF is not supported"));
        }
        else
        {
                dialog = gtk_message_dialog_new (
                        GTK_WINDOW (print_dialog), GTK_DIALOG_MODAL,
                        GTK_MESSAGE_ERROR, GTK_BUTTONS_OK,
                        _("Printing is not supported on this printer"));
                gtk_message_dialog_format_secondary_text (
                        GTK_MESSAGE_DIALOG (dialog),
                        _("You were trying to print to a printer using the “%s” driver. This program requires a PostScript printer driver."),
                        gnome_print_config_get (
                                config, (guchar *)"Settings.Engine.Backend.Driver"));
        }

    if (GTK_WINDOW (print_dialog)->group)
        gtk_window_group_add_window (GTK_WINDOW (print_dialog)->group,
                         GTK_WINDOW (dialog));

    gtk_dialog_run (GTK_DIALOG (dialog));
    gtk_widget_destroy (dialog);
    
    return FALSE;
}

static void
cancel_print_cb (EphyEmbedShell *shell, EmbedPrintInfo *info)
{
    g_source_remove (info->print_idle_id);
    
    ephy_print_info_free (info);
}

static gboolean
ephy_print_do_print_idle_cb (EmbedPrintInfo *info)
{
    GnomePrintJob *job;

    /* Sometimes mozilla doesn't even create the temp file!? */
    if (g_file_test (info->tempfile, G_FILE_TEST_EXISTS) == FALSE) return FALSE;

    /* FIXME: is this actually necessary? libc docs say all streams
     * are flushed when reading from any stream.
     */
    fflush(NULL);

    job = gnome_print_job_new (info->config);

    gnome_print_job_set_file (job, info->tempfile);
    gnome_print_job_print (job);
    g_object_unref (job);

    unlink (info->tempfile);

    ephy_print_info_free (info);

    return FALSE;
}

void
ephy_print_do_print_and_free (EmbedPrintInfo *info)
{
    /* mozilla printing system hasn't really sent the data
     * to the printer when reporting that printing is done, it's
     * just ready to do it now
     */
    info->print_idle_id = g_idle_add ((GSourceFunc) ephy_print_do_print_idle_cb,
                      info);
    info->cancel_print_id = g_signal_connect (embed_shell, "prepare-close",
                          G_CALLBACK (cancel_print_cb),
                          info);
}

static void
ephy_print_setup_dialog_response_cb (GtkWidget *widget,
                     int response,
                     EphyDialog *dialog)
{
    if (response == GTK_RESPONSE_HELP)
    {
        ephy_gui_help (GTK_WINDOW (widget), "epiphany", "using-print-setup");
        return;
    }

    g_object_unref (dialog);
}

/*
 * A variant of gnome_print_dialog_construct_range_page that can be used when
 * the total page count is unknown. It defaults to 1-1
 */
static void
ephy_print_dialog_construct_range_page (GnomePrintDialog *gpd, gint flags,
                    const guchar *currentlabel, const guchar *rangelabel)
{
    GtkWidget *hbox;

    hbox = NULL;

    if (flags & GNOME_PRINT_RANGE_RANGE) {
        GtkWidget *l, *sb;
        GtkObject *a;
        AtkObject *atko;

        hbox = gtk_hbox_new (FALSE, 3);
        gtk_widget_show (hbox);

        l = gtk_label_new_with_mnemonic (_("_From:"));
        gtk_widget_show (l);
        gtk_box_pack_start (GTK_BOX (hbox), l, FALSE, FALSE, 0);

        a = gtk_adjustment_new (1, 1, 9999, 1, 10, 10);
        g_object_set_data (G_OBJECT (hbox), "from", a);
        sb = gtk_spin_button_new (GTK_ADJUSTMENT (a), 1, 0.0);
        gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (sb), TRUE);
        gtk_widget_show (sb);
        gtk_box_pack_start (GTK_BOX (hbox), sb, FALSE, FALSE, 0);
        gtk_label_set_mnemonic_widget ((GtkLabel *) l, sb);

        atko = gtk_widget_get_accessible (sb);
        atk_object_set_description (atko, _("Sets the start of the range of pages to be printed"));

        l = gtk_label_new_with_mnemonic (_("_To:"));
        gtk_widget_show (l);
        gtk_box_pack_start (GTK_BOX (hbox), l, FALSE, FALSE, 0);

        a = gtk_adjustment_new (1, 1, 9999, 1, 10, 10);
        g_object_set_data (G_OBJECT (hbox), "to", a);
        sb = gtk_spin_button_new (GTK_ADJUSTMENT (a), 1, 0.0);
        gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (sb), TRUE);
        gtk_widget_show (sb);
        gtk_box_pack_start (GTK_BOX (hbox), sb, FALSE, FALSE, 0);
        gtk_label_set_mnemonic_widget ((GtkLabel *) l, sb);

        atko = gtk_widget_get_accessible (sb);
        atk_object_set_description (atko, _("Sets the end of the range of pages to be printed"));
    }

    gnome_print_dialog_construct_range_any (gpd, flags, hbox, currentlabel, rangelabel);
}

GtkWidget *
ephy_print_dialog_new (GtkWidget *parent,
               EmbedPrintInfo *info)
{
    GtkWidget *dialog;
    
    dialog = g_object_new (GNOME_TYPE_PRINT_DIALOG, "print_config",
                   info->config, NULL);

    gnome_print_dialog_construct (GNOME_PRINT_DIALOG (dialog), (const guchar *) _("Print"),
                      GNOME_PRINT_DIALOG_RANGE |
                      GNOME_PRINT_DIALOG_COPIES);
    
    ephy_print_dialog_construct_range_page (GNOME_PRINT_DIALOG (dialog),
                        GNOME_PRINT_RANGE_ALL |
                        GNOME_PRINT_RANGE_RANGE |
                        GNOME_PRINT_RANGE_SELECTION,
                        NULL, (const guchar *) _("Pages"));
    
    gtk_dialog_set_response_sensitive (GTK_DIALOG (dialog),
                                           GNOME_PRINT_DIALOG_RESPONSE_PREVIEW,
                                           FALSE);

    g_signal_connect (G_OBJECT (dialog), "response",
              G_CALLBACK (ephy_print_dialog_response_cb), info);
    
    gtk_window_set_transient_for (GTK_WINDOW (dialog), GTK_WINDOW (parent));
    
    if (GTK_WINDOW (parent)->group)
        gtk_window_group_add_window (GTK_WINDOW (parent)->group,
                         GTK_WINDOW (dialog));

    return dialog;
}

EphyDialog *
ephy_print_setup_dialog_new (void)
{
    EphyDialog *dialog;
    GtkWidget *window;

    dialog = EPHY_DIALOG (g_object_new (EPHY_TYPE_DIALOG, NULL));

    ephy_dialog_construct (dialog,
                   setup_props,
                   ephy_file ("print.glade"),
                   "print_setup_dialog",
                   NULL);

    window = ephy_dialog_get_control (dialog, setup_props[SETUP_WINDOW_PROP].id);
    g_signal_connect (window, "response",
              G_CALLBACK (ephy_print_setup_dialog_response_cb), dialog);

    return dialog;
}