main.c

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/*
 *  Copyright (C) 2004 Marco Pesenti Gritti
 *
 *  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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */

#include "config.h"

#include <stdlib.h>
#include <string.h>

#include <glib/gstdio.h>
#include <glib/gi18n.h>
#include <gtk/gtk.h>

#include "ev-application.h"
#include "ev-debug.h"
#include "ev-init.h"
#include "ev-file-helpers.h"
#include "ev-stock-icons.h"
#include "ev-metadata.h"

#ifdef G_OS_WIN32
#include <io.h>
#include <conio.h>
#if !(_WIN32_WINNT >= 0x0500)
#error "_WIN32_WINNT must be defined >= 0x0500"
#endif
#include <windows.h>
#endif

static gchar   *ev_page_label;
static gchar   *ev_find_string;
static gint     ev_page_index = 0;
static gchar   *ev_named_dest;
static gboolean preview_mode = FALSE;
static gboolean fullscreen_mode = FALSE;
static gboolean presentation_mode = FALSE;
static gboolean unlink_temp_file = FALSE;
static gchar   *print_settings;
static const char **file_arguments = NULL;


static gboolean
option_version_cb (const gchar *option_name,
                   const gchar *value,
                   gpointer     data,
                   GError     **error)
{
  g_print ("%s %s\n", _("GNOME Document Viewer"), VERSION);

  exit (0);
  return FALSE;
}

static const GOptionEntry goption_options[] =
{
    { "page-label", 'p', 0, G_OPTION_ARG_STRING, &ev_page_label, N_("The page label of the document to display."), N_("PAGE")},
    { "page-index", 'i', 0, G_OPTION_ARG_INT, &ev_page_index, N_("The page number of the document to display."), N_("NUMBER")},
    { "named-dest", 'n', 0, G_OPTION_ARG_STRING, &ev_named_dest, N_("Named destination to display."), N_("DEST")},
    { "fullscreen", 'f', 0, G_OPTION_ARG_NONE, &fullscreen_mode, N_("Run evince in fullscreen mode"), NULL },
    { "presentation", 's', 0, G_OPTION_ARG_NONE, &presentation_mode, N_("Run evince in presentation mode"), NULL },
    { "preview", 'w', 0, G_OPTION_ARG_NONE, &preview_mode, N_("Run evince as a previewer"), NULL },
    { "find", 'l', 0, G_OPTION_ARG_STRING, &ev_find_string, N_("The word or phrase to find in the document"), N_("STRING")},
    { "unlink-tempfile", 'u', G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_NONE, &unlink_temp_file, NULL, NULL },
    { "print-settings", 't', G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_FILENAME, &print_settings, NULL, NULL },
    { "version", 0, G_OPTION_FLAG_NO_ARG | G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, option_version_cb, NULL, NULL },
    { G_OPTION_REMAINING, 0, 0, G_OPTION_ARG_FILENAME_ARRAY, &file_arguments, NULL, N_("[FILE…]") },
    { NULL }
};

static gboolean
launch_previewer (void)
{
    GString *cmd_str;
    gchar   *cmd;
    gboolean retval = FALSE;
    GError  *error = NULL;

    /* Rebuild the command line, ignoring options
     * not supported by the previewer and taking only
     * the first path given
     */
    cmd_str = g_string_new ("evince-previewer");
        
    if (print_settings) {
        gchar *quoted;

        quoted = g_shell_quote (print_settings);
        g_string_append_printf (cmd_str, " --print-settings %s", quoted);
        g_free (quoted);
    }

    if (unlink_temp_file)
        g_string_append (cmd_str, " --unlink-tempfile");

    if (file_arguments) {
        gchar *quoted;
        
        quoted = g_shell_quote (file_arguments[0]);
        g_string_append_printf (cmd_str, " %s", quoted);
        g_free (quoted);
    }

    cmd = g_string_free (cmd_str, FALSE);

    if (!error) {
        GAppInfo *app;

        app = g_app_info_create_from_commandline (cmd, NULL, 0, &error);

        if (app != NULL) {
            retval = g_app_info_launch (app, NULL, NULL, &error);
            g_object_unref (app);
        }
    }

    if (error) {
        g_warning ("Error launching previewer: %s\n", error->message);
        g_error_free (error);
    }

    g_free (cmd);

    return retval;
}

static gchar *
get_label_from_filename (const gchar *filename)
{
    GFile   *file;
    gchar   *label;
    gboolean exists;

    label = g_strrstr (filename, "#");
    if (!label)
        return NULL;

    /* Filename contains a #, check
     * whether it's part of the path
     * or a label
     */
    file = g_file_new_for_commandline_arg (filename);
    exists = g_file_query_exists (file, NULL);
    g_object_unref (file);

    return exists ? NULL : label;
}

static void
load_files (const char **files)
{
    GdkScreen       *screen = gdk_screen_get_default ();
    EvWindowRunMode  mode = EV_WINDOW_MODE_NORMAL;
    gint             i;
    EvLinkDest      *global_dest = NULL;

    if (!files) {
        if (!ev_application_has_window (EV_APP))
            ev_application_open_recent_view (EV_APP, screen, GDK_CURRENT_TIME);
        return;
    }

    if (ev_page_label)
        global_dest = ev_link_dest_new_page_label (ev_page_label);
    else if (ev_page_index)
        global_dest = ev_link_dest_new_page (MAX (0, ev_page_index - 1));
    else if (ev_named_dest)
        global_dest = ev_link_dest_new_named (ev_named_dest);

    if (fullscreen_mode)
        mode = EV_WINDOW_MODE_FULLSCREEN;
    else if (presentation_mode)
        mode = EV_WINDOW_MODE_PRESENTATION;

    for (i = 0; files[i]; i++) {
        const gchar *filename;
        gchar       *uri;
        gchar       *label;
        GFile       *file;
        EvLinkDest  *dest = NULL;
        const gchar *app_uri;

        filename = files[i];
        label = get_label_from_filename (filename);
        if (label) {
            *label = 0;
            label++;
            dest = ev_link_dest_new_page_label (label);
        } else if (global_dest) {
            dest = g_object_ref (global_dest);
        }

        file = g_file_new_for_commandline_arg (filename);
        uri = g_file_get_uri (file);
        g_object_unref (file);

        app_uri = ev_application_get_uri (EV_APP);
        if (app_uri && strcmp (app_uri, uri) == 0) {
            g_free (uri);
            continue;
        }



        ev_application_open_uri_at_dest (EV_APP, uri, screen, dest,
                         mode, ev_find_string,
                         GDK_CURRENT_TIME);

        if (dest)
            g_object_unref (dest);
        g_free (uri);
        }
}

int
main (int argc, char *argv[])
{
        EvApplication  *application;
    GOptionContext *context;
    GError         *error = NULL;
        int             status;

#ifdef G_OS_WIN32

    if (fileno (stdout) != -1 &&
      _get_osfhandle (fileno (stdout)) != -1)
    {
      /* stdout is fine, presumably redirected to a file or pipe */
    }
    else
    {
      typedef BOOL (* WINAPI AttachConsole_t) (DWORD);

      AttachConsole_t p_AttachConsole =
        (AttachConsole_t) GetProcAddress (GetModuleHandle ("kernel32.dll"), "AttachConsole");

      if (p_AttachConsole != NULL && p_AttachConsole (ATTACH_PARENT_PROCESS))
      {
          freopen ("CONOUT$", "w", stdout);
          dup2 (fileno (stdout), 1);
          freopen ("CONOUT$", "w", stderr);
          dup2 (fileno (stderr), 2);

      }
    }
#endif

#ifdef ENABLE_NLS
    /* Initialize the i18n stuff */
    bindtextdomain (GETTEXT_PACKAGE, ev_get_locale_dir());
    bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
    textdomain (GETTEXT_PACKAGE);
#endif

    context = g_option_context_new (N_("GNOME Document Viewer"));
    g_option_context_set_translation_domain(context, GETTEXT_PACKAGE);
    g_option_context_add_main_entries (context, goption_options, GETTEXT_PACKAGE);

    g_option_context_add_group (context, gtk_get_option_group (TRUE));

    if (!g_option_context_parse (context, &argc, &argv, &error)) {
        g_printerr ("Cannot parse arguments: %s\n", error->message);
        g_error_free (error);
        g_option_context_free (context);

        return 1;
    }
    g_option_context_free (context);

    if (preview_mode) {
        gboolean retval;
        
        retval = launch_previewer ();
        
        return retval ? 0 : 1;
    }

        if (!ev_init ())
                return 1;

    ev_stock_icons_init ();

    /* Manually set name and icon */
    g_set_application_name (_("Document Viewer"));
    gtk_window_set_default_icon_name ("evince");

        application = ev_application_new ();
        if (!g_application_register (G_APPLICATION (application), NULL, &error)) {
                g_printerr ("Failed to register: %s\n", error->message);
                g_error_free (error);
                status = 1;
                goto done;
        }

    load_files (file_arguments);

    /* Change directory so we don't prevent unmounting in case the initial cwd
     * is on an external device (see bug #575436)
     */
    g_chdir (g_get_home_dir ());

    status = g_application_run (G_APPLICATION (application), 0, NULL);

    done:
    ev_shutdown ();
    ev_stock_icons_shutdown ();

        g_object_unref (application);
    return status;
}