shell/ev-password-view.c

   1 /* this file is part of evince, a gnome document viewer
   2  *
   3  *  Copyright (C) 2008 Carlos Garcia Campos <carlosgc@gnome.org>
   4  *  Copyright (C) 2005 Red Hat, Inc
   5  *
   6  * Evince is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * Evince is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  19  */
  20
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include "config.h"
  24 #endif
  25
  26 #include <glib/gi18n.h>
  27 #include <gtk/gtk.h>
  28 #include <gio/gio.h>
  29
  30 #include "ev-keyring.h"
  31 #include "ev-password-view.h"
  32
  33 enum {
  34         UNLOCK,
  35         LAST_SIGNAL
  36 };
  37 struct _EvPasswordViewPrivate {
  38         GtkWindow    *parent_window;
  39         GtkWidget    *label;
  40         GtkWidget    *password_entry;
  41
  42         gchar        *password;
  43         GPasswordSave password_save;
  44
  45         GFile        *uri_file;
  46 };
  47
  48 #define EV_PASSWORD_VIEW_GET_PRIVATE(object) \
  49         (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_PASSWORD_VIEW, EvPasswordViewPrivate));
  50
  51 static guint password_view_signals [LAST_SIGNAL] = { 0 };
  52
  53
  54 G_DEFINE_TYPE (EvPasswordView, ev_password_view, GTK_TYPE_VIEWPORT)
  55
  56 static void
  57 ev_password_view_finalize (GObject *object)
  58 {
  59         EvPasswordView *password_view = EV_PASSWORD_VIEW (object);
  60
  61         if (password_view->priv->password) {
  62                 g_free (password_view->priv->password);
  63                 password_view->priv->password = NULL;
  64         }
  65
  66         password_view->priv->parent_window = NULL;
  67
  68         if (password_view->priv->uri_file) {
  69                 g_object_unref (password_view->priv->uri_file);
  70                 password_view->priv->uri_file = NULL;
  71         }
  72
  73         G_OBJECT_CLASS (ev_password_view_parent_class)->finalize (object);
  74 }
  75
  76 static void
  77 ev_password_view_class_init (EvPasswordViewClass *class)
  78 {
  79         GObjectClass *g_object_class;
  80         GtkWidgetClass *widget_class;
  81
  82         g_object_class = G_OBJECT_CLASS (class);
  83         widget_class = GTK_WIDGET_CLASS (class);
  84
  85         password_view_signals[UNLOCK] =
  86                 g_signal_new ("unlock",
  87                               G_TYPE_FROM_CLASS (g_object_class),
  88                               G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
  89                               G_STRUCT_OFFSET (EvPasswordViewClass, unlock),
  90                               NULL, NULL,
  91                               g_cclosure_marshal_VOID__VOID,
  92                               G_TYPE_NONE, 0);
  93
  94         g_type_class_add_private (g_object_class, sizeof (EvPasswordViewPrivate));
  95
  96         g_object_class->finalize = ev_password_view_finalize;
  97 }
  98
  99 static void
 100 ev_password_view_clicked_cb (GtkWidget      *button,
 101                              EvPasswordView *password_view)
 102 {
 103         ev_password_view_ask_password (password_view);
 104 }
 105
 106 static void
 107 ev_password_view_init (EvPasswordView *password_view)
 108 {
 109         GtkWidget *align;
 110         GtkWidget *vbox;
 111         GtkWidget *hbox;
 112         GtkWidget *image;
 113         GtkWidget *button;
 114         GtkWidget *label;
 115         gchar     *markup;
 116
 117         password_view->priv = EV_PASSWORD_VIEW_GET_PRIVATE (password_view);
 118
 119         password_view->priv->password_save = G_PASSWORD_SAVE_NEVER;
 120
 121         gtk_widget_push_composite_child ();
 122
 123         /* set ourselves up */
 124         align = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
 125         vbox = gtk_vbox_new (FALSE, 24);
 126         gtk_container_set_border_width (GTK_CONTAINER (vbox), 24);
 127         gtk_container_add (GTK_CONTAINER (password_view), align);
 128         gtk_container_add (GTK_CONTAINER (align), vbox);
 129
 130         password_view->priv->label =
 131                 (GtkWidget *) g_object_new (GTK_TYPE_LABEL,
 132                                             "wrap", TRUE,
 133                                             "selectable", TRUE,
 134                                             NULL);
 135         gtk_box_pack_start (GTK_BOX (vbox), password_view->priv->label, FALSE, FALSE, 0);
 136
 137         image = gtk_image_new_from_stock (GTK_STOCK_DIALOG_AUTHENTICATION,
 138                                           GTK_ICON_SIZE_DIALOG);
 139         gtk_box_pack_start (GTK_BOX (vbox), image, FALSE, FALSE, 0);
 140
 141         label = gtk_label_new (NULL);
 142         gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
 143         markup = g_strdup_printf ("<span size=\"x-large\">%s</span>",
 144                                   _("This document is locked and can only be read by entering the correct password."));
 145         gtk_label_set_markup (GTK_LABEL (label), markup);
 146         g_free (markup);
 147
 148         gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
 149
 150         hbox = gtk_hbox_new (FALSE, 0);
 151         gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
 152
 153         button = gtk_button_new_with_mnemonic (_("_Unlock Document"));
 154         g_signal_connect (button, "clicked", G_CALLBACK (ev_password_view_clicked_cb), password_view);
 155         gtk_box_pack_end (GTK_BOX (hbox), button, FALSE, FALSE, 0);
 156
 157         gtk_widget_show_all (align);
 158         gtk_widget_pop_composite_child ();
 159 }
 160
 161 /* Public functions */
 162 void
 163 ev_password_view_set_uri (EvPasswordView *password_view,
 164                           const char     *uri)
 165 {
 166         gchar *markup, *file_name;
 167         GFile *file;
 168
 169         g_return_if_fail (EV_IS_PASSWORD_VIEW (password_view));
 170         g_return_if_fail (uri != NULL);
 171
 172         file = g_file_new_for_uri (uri);
 173         if (password_view->priv->uri_file &&
 174             g_file_equal (file, password_view->priv->uri_file)) {
 175                 g_object_unref (file);
 176                 return;
 177         }
 178         if (password_view->priv->uri_file)
 179                 g_object_unref (password_view->priv->uri_file);
 180         password_view->priv->uri_file = file;
 181
 182         file_name = g_file_get_basename (password_view->priv->uri_file);
 183         markup = g_markup_printf_escaped ("<span size=\"x-large\" weight=\"bold\">%s</span>",
 184                                           file_name);
 185         g_free (file_name);
 186
 187         gtk_label_set_markup (GTK_LABEL (password_view->priv->label), markup);
 188         g_free (markup);
 189 }
 190
 191 static void
 192 ev_password_dialog_got_response (GtkDialog      *dialog,
 193                                  gint            response_id,
 194                                  EvPasswordView *password_view)
 195 {
 196         gtk_widget_set_sensitive (GTK_WIDGET (password_view), TRUE);
 197
 198         if (response_id == GTK_RESPONSE_OK) {
 199                 g_free (password_view->priv->password);
 200                 password_view->priv->password =
 201                         g_strdup (gtk_entry_get_text (GTK_ENTRY (password_view->priv->password_entry)));
 202
 203                 g_signal_emit (password_view, password_view_signals[UNLOCK], 0);
 204         }
 205
 206         gtk_widget_destroy (GTK_WIDGET (dialog));
 207 }
 208
 209 static void
 210 ev_password_dialog_remember_button_toggled (GtkToggleButton *button,
 211                                             EvPasswordView  *password_view)
 212 {
 213         if (gtk_toggle_button_get_active (button)) {
 214                 gpointer data;
 215
 216                 data = g_object_get_data (G_OBJECT (button), "password-save");
 217                 password_view->priv->password_save = GPOINTER_TO_INT (data);
 218         }
 219 }
 220
 221 static void
 222 ev_password_dialog_entry_changed_cb (GtkEditable *editable,
 223                                      GtkDialog   *dialog)
 224 {
 225         const char *text;
 226
 227         text = gtk_entry_get_text (GTK_ENTRY (editable));
 228
 229         gtk_dialog_set_response_sensitive (GTK_DIALOG (dialog), GTK_RESPONSE_OK,
 230                                            (text != NULL && *text != '\0'));
 231 }
 232
 233 static void
 234 ev_password_dialog_entry_activated_cb (GtkEntry  *entry,
 235                                        GtkDialog *dialog)
 236 {
 237         gtk_dialog_response (GTK_DIALOG (dialog), GTK_RESPONSE_OK);
 238 }
 239
 240 void
 241 ev_password_view_ask_password (EvPasswordView *password_view)
 242 {
 243         GtkDialog *dialog;
 244         GtkWidget *content_area, *action_area;
 245         GtkWidget *entry_container;
 246         GtkWidget *hbox, *main_vbox, *vbox, *icon;
 247         GtkWidget *table;
 248         GtkWidget *label;
 249         gchar     *format, *markup, *file_name;
 250
 251         gtk_widget_set_sensitive (GTK_WIDGET (password_view), FALSE);
 252
 253         dialog = GTK_DIALOG (gtk_dialog_new ());
 254         content_area = gtk_dialog_get_content_area (dialog);
 255         action_area = gtk_dialog_get_action_area (dialog);
 256
 257         /* Set the dialog up with HIG properties */
 258         gtk_container_set_border_width (GTK_CONTAINER (dialog), 5);
 259         gtk_box_set_spacing (GTK_BOX (content_area), 2); /* 2 * 5 + 2 = 12 */
 260         gtk_container_set_border_width (GTK_CONTAINER (action_area), 5);
 261         gtk_box_set_spacing (GTK_BOX (action_area), 6);
 262
 263         gtk_window_set_title (GTK_WINDOW (dialog), _("Enter password"));
 264         gtk_window_set_resizable (GTK_WINDOW (dialog), FALSE);
 265         gtk_window_set_icon_name (GTK_WINDOW (dialog), GTK_STOCK_DIALOG_AUTHENTICATION);
 266         gtk_window_set_transient_for (GTK_WINDOW (dialog), password_view->priv->parent_window);
 267         gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
 268
 269         gtk_dialog_add_buttons (dialog,
 270                                 GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
 271                                 _("_Unlock Document"), GTK_RESPONSE_OK,
 272                                 NULL);
 273         gtk_dialog_set_default_response (dialog, GTK_RESPONSE_OK);
 274         gtk_dialog_set_response_sensitive (GTK_DIALOG (dialog),
 275                                            GTK_RESPONSE_OK, FALSE);
 276         gtk_dialog_set_alternative_button_order (dialog,
 277                                                  GTK_RESPONSE_OK,
 278                                                  GTK_RESPONSE_CANCEL,
 279                                                  -1);
 280
 281         /* Build contents */
 282         hbox = gtk_hbox_new (FALSE, 12);
 283         gtk_container_set_border_width (GTK_CONTAINER (hbox), 5);
 284         gtk_box_pack_start (GTK_BOX (content_area), hbox, TRUE, TRUE, 0);
 285         gtk_widget_show (hbox);
 286
 287         icon = gtk_image_new_from_stock (GTK_STOCK_DIALOG_AUTHENTICATION,
 288                                          GTK_ICON_SIZE_DIALOG);
 289
 290         gtk_misc_set_alignment (GTK_MISC (icon), 0.5, 0.0);
 291         gtk_box_pack_start (GTK_BOX (hbox), icon, FALSE, FALSE, 0);
 292         gtk_widget_show (icon);
 293
 294         main_vbox = gtk_vbox_new (FALSE, 18);
 295         gtk_box_pack_start (GTK_BOX (hbox), main_vbox, TRUE, TRUE, 0);
 296         gtk_widget_show (main_vbox);
 297
 298         label = gtk_label_new (NULL);
 299         gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
 300         gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
 301         file_name = g_file_get_basename (password_view->priv->uri_file);
 302         format = g_strdup_printf ("<span size=\"larger\" weight=\"bold\">%s</span>\n\n%s",
 303                                   _("Password required"),
 304                                   _("The document “%s” is locked and requires a password before it can be opened."));
 305         markup = g_markup_printf_escaped (format, file_name);
 306         gtk_label_set_markup (GTK_LABEL (label), markup);
 307         g_free (format);
 308         g_free (markup);
 309         g_free (file_name);
 310         gtk_box_pack_start (GTK_BOX (main_vbox), label,
 311                             FALSE, FALSE, 0);
 312         gtk_widget_show (label);
 313
 314         vbox = gtk_vbox_new (FALSE, 6);
 315         gtk_box_pack_start (GTK_BOX (main_vbox), vbox, FALSE, FALSE, 0);
 316         gtk_widget_show (vbox);
 317
 318         /* The table that holds the entries */
 319         entry_container = gtk_alignment_new (0.0, 0.0, 1.0, 1.0);
 320
 321         gtk_alignment_set_padding (GTK_ALIGNMENT (entry_container),
 322                                    0, 0, 0, 0);
 323
 324         gtk_box_pack_start (GTK_BOX (vbox), entry_container,
 325                             FALSE, FALSE, 0);
 326         gtk_widget_show (entry_container);
 327
 328         table = gtk_table_new (1, 2, FALSE);
 329         gtk_table_set_col_spacings (GTK_TABLE (table), 12);
 330         gtk_table_set_row_spacings (GTK_TABLE (table), 6);
 331         gtk_container_add (GTK_CONTAINER (entry_container), table);
 332         gtk_widget_show (table);
 333
 334         label = gtk_label_new_with_mnemonic (_("_Password:"));
 335         gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
 336
 337         password_view->priv->password_entry = gtk_entry_new ();
 338         gtk_entry_set_visibility (GTK_ENTRY (password_view->priv->password_entry), FALSE);
 339         g_signal_connect (password_view->priv->password_entry, "changed",
 340                           G_CALLBACK (ev_password_dialog_entry_changed_cb),
 341                           dialog);
 342         g_signal_connect (password_view->priv->password_entry, "activate",
 343                           G_CALLBACK (ev_password_dialog_entry_activated_cb),
 344                           dialog);
 345         gtk_table_attach (GTK_TABLE (table), label,
 346                           0, 1, 0, 1,
 347                           GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
 348         gtk_widget_show (label);
 349
 350         gtk_table_attach_defaults (GTK_TABLE (table), password_view->priv->password_entry,
 351                                    1, 2, 0, 1);
 352         gtk_widget_show (password_view->priv->password_entry);
 353
 354         gtk_label_set_mnemonic_widget (GTK_LABEL (label),
 355                                        password_view->priv->password_entry);
 356
 357         if (ev_keyring_is_available ()) {
 358                 GtkWidget  *choice;
 359                 GtkWidget  *remember_box;
 360                 GSList     *group;
 361
 362                 remember_box = gtk_vbox_new (FALSE, 6);
 363                 gtk_box_pack_start (GTK_BOX (vbox), remember_box,
 364                                     FALSE, FALSE, 0);
 365                 gtk_widget_show (remember_box);
 366
 367                 choice = gtk_radio_button_new_with_mnemonic (NULL, _("Forget password _immediately"));
 368                 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (choice),
 369                                               password_view->priv->password_save == G_PASSWORD_SAVE_NEVER);
 370                 g_object_set_data (G_OBJECT (choice), "password-save",
 371                                    GINT_TO_POINTER (G_PASSWORD_SAVE_NEVER));
 372                 g_signal_connect (choice, "toggled",
 373                                   G_CALLBACK (ev_password_dialog_remember_button_toggled),
 374                                   password_view);
 375                 gtk_box_pack_start (GTK_BOX (remember_box), choice, FALSE, FALSE, 0);
 376                 gtk_widget_show (choice);
 377
 378                 group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (choice));
 379                 choice = gtk_radio_button_new_with_mnemonic (group, _("Remember password until you _log out"));
 380                 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (choice),
 381                                               password_view->priv->password_save == G_PASSWORD_SAVE_FOR_SESSION);
 382                 g_object_set_data (G_OBJECT (choice), "password-save",
 383                                    GINT_TO_POINTER (G_PASSWORD_SAVE_FOR_SESSION));
 384                 g_signal_connect (choice, "toggled",
 385                                   G_CALLBACK (ev_password_dialog_remember_button_toggled),
 386                                   password_view);
 387                 gtk_box_pack_start (GTK_BOX (remember_box), choice, FALSE, FALSE, 0);
 388                 gtk_widget_show (choice);
 389
 390                 group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (choice));
 391                 choice = gtk_radio_button_new_with_mnemonic (group, _("Remember _forever"));
 392                 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (choice),
 393                                               password_view->priv->password_save == G_PASSWORD_SAVE_PERMANENTLY);
 394                 g_object_set_data (G_OBJECT (choice), "password-save",
 395                                    GINT_TO_POINTER (G_PASSWORD_SAVE_PERMANENTLY));
 396                 g_signal_connect (choice, "toggled",
 397                                   G_CALLBACK (ev_password_dialog_remember_button_toggled),
 398                                   password_view);
 399                 gtk_box_pack_start (GTK_BOX (remember_box), choice, FALSE, FALSE, 0);
 400                 gtk_widget_show (choice);
 401         }
 402
 403         g_signal_connect (dialog, "response",
 404                           G_CALLBACK (ev_password_dialog_got_response),
 405                           password_view);
 406
 407         gtk_widget_show (GTK_WIDGET (dialog));
 408 }
 409
 410 const gchar *
 411 ev_password_view_get_password (EvPasswordView *password_view)
 412 {
 413         return password_view->priv->password;
 414 }
 415
 416 GPasswordSave
 417 ev_password_view_get_password_save_flags (EvPasswordView *password_view)
 418 {
 419         return password_view->priv->password_save;
 420 }
 421
 422 GtkWidget *
 423 ev_password_view_new (GtkWindow *parent)
 424 {
 425         EvPasswordView *retval;
 426
 427         retval = EV_PASSWORD_VIEW (g_object_new (EV_TYPE_PASSWORD_VIEW, NULL));
 428
 429         retval->priv->parent_window = parent;
 430
 431         return GTK_WIDGET (retval);
 432 }
 433