git.maemo.org Git - hildon/blob - hildon/hildon-picker-dialog.c

   1 /*
   2  * This file is a part of hildon
   3  *
   4  * Copyright (C) 2005, 2008 Nokia Corporation.
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version. or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free
  18  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  */
  20
  21 /**
  22  * SECTION:hildon-picker-dialog
  23  * @short_description: A utility widget that shows a #HildonTouchSelector widget
  24  *
  25  * #HildonPickerDialog is a dialog that is used to show a
  26  * #HildonTouchSelector widget and a 'Done' button to allow users to
  27  * finish their selections.
  28  *
  29  * The #HildonPickerDialog will show a 'Done' button in case the
  30  * #HildonTouchSelector allows multiple selection. The label of the
  31  * button can be set using hildon_picker_dialog_set_done_label() and
  32  * retrieved using hildon_picker_dialog_get_done_label()
  33  *
  34  * Note that in most cases developers don't need to deal directly with
  35  * this widget. #HildonPickerButton is designed to pop up a
  36  * #HildonPickerDialog and manage the interaction with it.
  37  */
  38
  39 #ifdef HAVE_CONFIG_H
  40 #include <config.h>
  41 #endif
  42
  43 #include <string.h>
  44 #include <stdlib.h>
  45 #include <libintl.h>
  46
  47 #include "hildon-touch-selector.h"
  48 #include "hildon-touch-selector-entry.h"
  49 #include "hildon-picker-dialog.h"
  50
  51 #define _(String)  dgettext("hildon-libs", String)
  52
  53 #define HILDON_PICKER_DIALOG_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), HILDON_TYPE_PICKER_DIALOG, HildonPickerDialogPrivate))
  54
  55 G_DEFINE_TYPE (HildonPickerDialog, hildon_picker_dialog, HILDON_TYPE_DIALOG)
  56
  57 struct _HildonPickerDialogPrivate
  58 {
  59   GtkWidget *selector;
  60   GtkWidget *button;
  61
  62   gulong signal_changed_id;
  63   gulong signal_columns_changed_id;
  64
  65   gboolean center_on_show;
  66   GSList *current_selection;
  67   gchar *current_text;
  68 };
  69
  70 /* properties */
  71 enum
  72 {
  73   PROP_0,
  74   PROP_DONE_BUTTON_TEXT,
  75   PROP_CENTER_ON_SHOW,
  76   PROP_LAST
  77 };
  78
  79 enum
  80 {
  81   RESPONSE,
  82   LAST_SIGNAL
  83 };
  84
  85 #define DEFAULT_DONE_BUTTON_TEXT        _("wdgt_bd_done")
  86
  87 static void
  88 hildon_picker_dialog_set_property               (GObject * object,
  89                                                  guint prop_id,
  90                                                  const GValue * value,
  91                                                  GParamSpec * pspec);
  92
  93 static void
  94 hildon_picker_dialog_get_property               (GObject * object,
  95                                                  guint prop_id,
  96                                                  GValue * value, GParamSpec * pspec);
  97
  98 static void
  99 hildon_picker_dialog_finalize                   (GObject *object);
 100
 101 /* gtkwidget */
 102 static void
 103 hildon_picker_dialog_show                       (GtkWidget *widget);
 104
 105 static void
 106 hildon_picker_dialog_realize                    (GtkWidget *widget);
 107
 108 static void
 109 hildon_picker_dialog_size_request               (GtkWidget *widget,
 110                                                  GtkRequisition *requisition);
 111
 112 /* private functions */
 113 static gboolean
 114 requires_done_button                            (HildonPickerDialog * dialog);
 115
 116 static void
 117 prepare_action_area                             (HildonPickerDialog *dialog);
 118
 119 static void
 120 setup_interaction_mode                          (HildonPickerDialog * dialog);
 121
 122 static void
 123 _select_on_selector_changed_cb                  (HildonTouchSelector * dialog,
 124                                                  gint column,
 125                                                  gpointer data);
 126
 127 static gboolean
 128 _hildon_picker_dialog_set_selector              (HildonPickerDialog * dialog,
 129                                                  HildonTouchSelector * selector);
 130
 131 static void
 132 _on_dialog_response                             (GtkDialog *dialog,
 133                                                  gint response_id,
 134                                                  gpointer data);
 135
 136 static void
 137 _save_current_selection                         (HildonPickerDialog *dialog);
 138
 139 static void
 140 _restore_current_selection                      (HildonPickerDialog *dialog);
 141
 142 static void
 143 _clean_current_selection                        (HildonPickerDialog *dialog);
 144
 145 static guint
 146 hildon_picker_dialog_get_max_height             (HildonPickerDialog *dialog);
 147
 148 /**********************************************************************************/
 149
 150 static void
 151 hildon_picker_dialog_class_init (HildonPickerDialogClass * class)
 152 {
 153   GObjectClass *gobject_class;
 154   GtkObjectClass *object_class;
 155   GtkWidgetClass *widget_class;
 156   GtkContainerClass *container_class;
 157
 158   gobject_class = (GObjectClass *) class;
 159   object_class = (GtkObjectClass *) class;
 160   widget_class = (GtkWidgetClass *) class;
 161   container_class = (GtkContainerClass *) class;
 162
 163   /* GObject */
 164   gobject_class->set_property = hildon_picker_dialog_set_property;
 165   gobject_class->get_property = hildon_picker_dialog_get_property;
 166   gobject_class->finalize = hildon_picker_dialog_finalize;
 167
 168   /* GtkWidget */
 169   widget_class->show = hildon_picker_dialog_show;
 170   widget_class->realize = hildon_picker_dialog_realize;
 171   widget_class->size_request = hildon_picker_dialog_size_request,
 172
 173   /* HildonPickerDialog */
 174   class->set_selector = _hildon_picker_dialog_set_selector;
 175
 176   /* signals */
 177
 178   /* properties */
 179   /**
 180    * HildonPickerDialog
 181    *
 182    * Button label
 183    *
 184    * Since: 2.2
 185    */
 186   g_object_class_install_property (gobject_class,
 187                                    PROP_DONE_BUTTON_TEXT,
 188                                    g_param_spec_string ("done-button-text",
 189                                                         "Done Button Label",
 190                                                         "Done Button Label",
 191                                                         DEFAULT_DONE_BUTTON_TEXT,
 192                                                         G_PARAM_READABLE |
 193                                                         G_PARAM_WRITABLE |
 194                                                         G_PARAM_CONSTRUCT));
 195
 196   g_object_class_install_property (gobject_class,
 197                                    PROP_CENTER_ON_SHOW,
 198                                    g_param_spec_boolean ("center-on-show",
 199                                                          "Center on show",
 200                                                          "If the dialog should center"
 201                                                          " on the current selection"
 202                                                          " when it is showed",
 203                                                          TRUE,
 204                                                          G_PARAM_READWRITE |
 205                                                          G_PARAM_CONSTRUCT));
 206
 207   /* Using the default height, we get 5 full rows. With the header it sums 404 pixels */
 208   gtk_widget_class_install_style_property (widget_class,
 209                                            g_param_spec_uint
 210                                            ("max-height-landscape",
 211                                             "Max dialog height on landscape mode",
 212                                             "Maximum dialog height on landscape mode",
 213                                             0,
 214                                             G_MAXUINT,
 215                                             358,
 216                                             G_PARAM_READWRITE));
 217
 218   /* Using the default height, we get 9 full rows. With the header it sums 684 pixels */
 219   gtk_widget_class_install_style_property (widget_class,
 220                                            g_param_spec_uint
 221                                            ("max-height-portrait",
 222                                             "Max dialog height on portrait mode",
 223                                             "Maximum dialog height on portrait mode",
 224                                             0,
 225                                             G_MAXUINT,
 226                                             638,
 227                                             G_PARAM_READWRITE));
 228
 229   g_type_class_add_private (object_class, sizeof (HildonPickerDialogPrivate));
 230 }
 231
 232
 233 static void
 234 hildon_picker_dialog_init (HildonPickerDialog * dialog)
 235 {
 236   dialog->priv = HILDON_PICKER_DIALOG_GET_PRIVATE (dialog);
 237
 238   dialog->priv->selector = NULL;
 239   dialog->priv->button =
 240     gtk_dialog_add_button (GTK_DIALOG (dialog), "", GTK_RESPONSE_OK);
 241   gtk_widget_grab_default (dialog->priv->button);
 242   gtk_dialog_set_has_separator (GTK_DIALOG (dialog), FALSE);
 243
 244   dialog->priv->signal_changed_id = 0;
 245   dialog->priv->signal_columns_changed_id = 0;
 246   dialog->priv->center_on_show = TRUE;
 247   dialog->priv->current_selection = NULL;
 248   dialog->priv->current_text = NULL;
 249
 250   g_signal_connect (G_OBJECT (dialog),
 251                     "response", G_CALLBACK (_on_dialog_response),
 252                     NULL);
 253 }
 254
 255
 256 static void
 257 hildon_picker_dialog_set_property (GObject * object,
 258                                    guint param_id,
 259                                    const GValue * value, GParamSpec * pspec)
 260 {
 261   HildonPickerDialog *dialog;
 262
 263   dialog = HILDON_PICKER_DIALOG (object);
 264
 265   switch (param_id) {
 266   case PROP_DONE_BUTTON_TEXT:
 267     hildon_picker_dialog_set_done_label (HILDON_PICKER_DIALOG (object),
 268                                          g_value_get_string (value));
 269     break;
 270   case PROP_CENTER_ON_SHOW:
 271     dialog->priv->center_on_show = g_value_get_boolean (value);
 272     break;
 273   default:
 274     G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 275     break;
 276   }
 277 }
 278
 279 static void
 280 hildon_picker_dialog_get_property (GObject * object,
 281                                    guint param_id,
 282                                    GValue * value, GParamSpec * pspec)
 283 {
 284   HildonPickerDialog *dialog;
 285
 286   dialog = HILDON_PICKER_DIALOG (object);
 287
 288   switch (param_id) {
 289   case PROP_DONE_BUTTON_TEXT:
 290     g_value_set_string (value, hildon_picker_dialog_get_done_label (dialog));
 291     break;
 292   case PROP_CENTER_ON_SHOW:
 293     g_value_set_boolean (value, dialog->priv->center_on_show);
 294     break;
 295   default:
 296     G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 297     break;
 298   }
 299 }
 300
 301 static void
 302 hildon_picker_dialog_finalize (GObject *object)
 303 {
 304   _clean_current_selection (HILDON_PICKER_DIALOG (object));
 305
 306   G_OBJECT_CLASS (hildon_picker_dialog_parent_class)->finalize (object);
 307 }
 308
 309 static void
 310 hildon_picker_dialog_show                       (GtkWidget *widget)
 311 {
 312   HildonPickerDialog *dialog = HILDON_PICKER_DIALOG (widget);
 313   HildonTouchSelector *selector;
 314
 315   GTK_WIDGET_CLASS (hildon_picker_dialog_parent_class)->show (widget);
 316
 317   if (dialog->priv->center_on_show) {
 318     selector = hildon_picker_dialog_get_selector (dialog);
 319     hildon_touch_selector_center_on_selected (selector);
 320   }
 321
 322   _save_current_selection (dialog);
 323   prepare_action_area (dialog);
 324
 325 }
 326
 327 static void
 328 hildon_picker_dialog_size_request               (GtkWidget *widget,
 329                                                  GtkRequisition *requisition)
 330 {
 331   HildonTouchSelector *selector;
 332
 333   selector = hildon_picker_dialog_get_selector (HILDON_PICKER_DIALOG (widget));
 334
 335   if (selector) {
 336     GtkRequisition child_requisition;
 337     GtkRequisition optimal_requisition;
 338     GtkBin *bin;
 339     guint max_height;
 340
 341     bin = GTK_BIN (widget);
 342
 343     requisition->width = GTK_CONTAINER (widget)->border_width * 2;
 344     /* Adding pannable container border using 4 instead of 2 */
 345     requisition->height = GTK_CONTAINER (widget)->border_width * 4;
 346
 347     /* assure the requisition is done */
 348     gtk_widget_size_request (bin->child, &child_requisition);
 349
 350     hildon_touch_selector_optimal_size_request (selector,
 351                                                 &optimal_requisition);
 352
 353     requisition->width += child_requisition.width;
 354
 355     max_height = hildon_picker_dialog_get_max_height (HILDON_PICKER_DIALOG (widget));
 356
 357     requisition->height = MIN (max_height,
 358                                requisition->height + optimal_requisition.height);
 359   } else
 360     GTK_WIDGET_CLASS (hildon_picker_dialog_parent_class)->size_request
 361       (widget, requisition);
 362 }
 363
 364 static void
 365 hildon_picker_dialog_realize (GtkWidget *widget)
 366 {
 367   setup_interaction_mode (HILDON_PICKER_DIALOG (widget));
 368
 369   GTK_WIDGET_CLASS (hildon_picker_dialog_parent_class)->realize (widget);
 370 }
 371
 372 /* ------------------------------ PRIVATE METHODS ---------------------------- */
 373
 374 static guint
 375 hildon_picker_dialog_get_max_height             (HildonPickerDialog *dialog)
 376 {
 377   gboolean landscape = TRUE;
 378   guint max_value = 0;
 379   GdkScreen *screen = NULL;
 380
 381   screen = gtk_widget_get_screen (GTK_WIDGET (dialog));
 382   if (screen != NULL) {
 383     if (gdk_screen_get_width (screen) > gdk_screen_get_height (screen)) {
 384       landscape = TRUE;
 385     } else {
 386       landscape = FALSE;
 387     }
 388   }
 389
 390   if (landscape) {
 391     gtk_widget_style_get (GTK_WIDGET (dialog), "max-height-landscape",
 392                           &max_value, NULL);
 393   } else {
 394     gtk_widget_style_get (GTK_WIDGET (dialog), "max-height-portrait",
 395                           &max_value, NULL);
 396   }
 397
 398   return max_value;
 399 }
 400
 401
 402 static void
 403 _select_on_selector_changed_cb (HildonTouchSelector * selector,
 404                                 gint column, gpointer data)
 405 {
 406   g_return_if_fail (HILDON_IS_PICKER_DIALOG (data));
 407
 408   gtk_dialog_response (GTK_DIALOG (data), GTK_RESPONSE_OK);
 409 }
 410
 411 static gboolean
 412 selection_completed (HildonPickerDialog *dialog)
 413 {
 414   HildonPickerDialogPrivate *priv;
 415   GList *list;
 416   gint i, n_cols;
 417   gboolean all_selected = TRUE;
 418
 419   priv = HILDON_PICKER_DIALOG_GET_PRIVATE (dialog);
 420
 421   n_cols = hildon_touch_selector_get_num_columns (HILDON_TOUCH_SELECTOR (priv->selector));
 422   for (i = 0; i < n_cols; i++) {
 423     list = hildon_touch_selector_get_selected_rows (HILDON_TOUCH_SELECTOR (priv->selector), i);
 424     if (list == NULL) {
 425       all_selected = FALSE;
 426       break;
 427     }
 428     g_list_foreach (list, (GFunc)gtk_tree_path_free, NULL);
 429     g_list_free (list);
 430   }
 431
 432   return all_selected;
 433 }
 434
 435 static void
 436 _on_dialog_response                             (GtkDialog *dialog,
 437                                                  gint response_id,
 438                                                  gpointer data)
 439 {
 440   if (response_id == GTK_RESPONSE_OK) {
 441     if (selection_completed (HILDON_PICKER_DIALOG (dialog)) == FALSE) {
 442       g_signal_stop_emission_by_name (dialog, "response");
 443     }
 444   } else if (response_id == GTK_RESPONSE_DELETE_EVENT) {
 445     _restore_current_selection (HILDON_PICKER_DIALOG (dialog));
 446   }
 447 }
 448
 449 static void
 450 on_selector_columns_changed (HildonTouchSelector * selector, gpointer userdata)
 451 {
 452   HildonPickerDialog * dialog;
 453
 454   dialog = HILDON_PICKER_DIALOG (userdata);
 455
 456   prepare_action_area (dialog);
 457   if (GTK_WIDGET_REALIZED (dialog)) {
 458     setup_interaction_mode (dialog);
 459   }
 460 }
 461
 462 /**
 463  * hildon_picker_dialog_set_done_label:
 464  * @dialog: a #HildonPickerDialog
 465  * @label: a string
 466  *
 467  * Sets a custom string to be used as the 'Done' button label in @dialog.
 468  *
 469  * Since: 2.2
 470  **/
 471 void
 472 hildon_picker_dialog_set_done_label (HildonPickerDialog * dialog,
 473                                      const gchar * label)
 474 {
 475   HildonPickerDialogPrivate *priv;
 476
 477   g_return_if_fail (HILDON_IS_PICKER_DIALOG (dialog));
 478   g_return_if_fail (label != NULL);
 479
 480   priv = HILDON_PICKER_DIALOG_GET_PRIVATE (dialog);
 481
 482   gtk_button_set_label (GTK_BUTTON (priv->button), label);
 483 }
 484
 485 /**
 486  * hildon_picker_dialog_get_done_label:
 487  * @dialog: a #HildonPickerDialog
 488  *
 489  * Retrieves current 'Done' button label.
 490  *
 491  * Returns: the custom string to be used.
 492  *
 493  * Since: 2.2
 494  **/
 495 const gchar *
 496 hildon_picker_dialog_get_done_label (HildonPickerDialog * dialog)
 497 {
 498   HildonPickerDialogPrivate *priv;
 499
 500   g_return_val_if_fail (HILDON_IS_PICKER_DIALOG (dialog), NULL);
 501
 502   priv = HILDON_PICKER_DIALOG_GET_PRIVATE (dialog);
 503
 504   return gtk_button_get_label (GTK_BUTTON (priv->button));
 505 }
 506
 507 static void
 508 free_path_list (GList *list)
 509 {
 510   g_list_foreach (list, (GFunc) gtk_tree_path_free, NULL);
 511   g_list_free (list);
 512 }
 513
 514 static void
 515 _clean_current_selection (HildonPickerDialog *dialog)
 516 {
 517   if (dialog->priv->current_selection) {
 518     g_slist_foreach (dialog->priv->current_selection, (GFunc) free_path_list, NULL);
 519     g_slist_free (dialog->priv->current_selection);
 520     dialog->priv->current_selection = NULL;
 521   }
 522   if (dialog->priv->current_text) {
 523     g_free (dialog->priv->current_text);
 524     dialog->priv->current_text = NULL;
 525   }
 526 }
 527
 528 static void
 529 _save_current_selection (HildonPickerDialog *dialog)
 530 {
 531   HildonTouchSelector *selector;
 532   gint i, columns;
 533
 534   selector = HILDON_TOUCH_SELECTOR (dialog->priv->selector);
 535
 536   _clean_current_selection (dialog);
 537
 538   columns = hildon_touch_selector_get_num_columns (selector);
 539   for (i = 0; i  < columns; i++) {
 540     dialog->priv->current_selection
 541       = g_slist_append (dialog->priv->current_selection,
 542                         hildon_touch_selector_get_selected_rows (selector, i));
 543   }
 544   if (HILDON_IS_TOUCH_SELECTOR_ENTRY (selector)) {
 545           HildonEntry *entry = hildon_touch_selector_entry_get_entry (HILDON_TOUCH_SELECTOR_ENTRY (selector));
 546           dialog->priv->current_text = g_strdup (hildon_entry_get_text (entry));
 547   }
 548 }
 549
 550 static void
 551 _restore_current_selection (HildonPickerDialog *dialog)
 552 {
 553   GSList *current_selection, *iter;
 554   GList *selected, *selected_iter;
 555   GtkTreePath *current_path;
 556   HildonTouchSelector *selector;
 557   GtkTreeModel *model;
 558   GtkTreeIter tree_iter;
 559   gint i;
 560
 561   if (dialog->priv->current_selection == NULL)
 562     return;
 563
 564   current_selection = dialog->priv->current_selection;
 565   selector = HILDON_TOUCH_SELECTOR (dialog->priv->selector);
 566
 567   if (hildon_touch_selector_get_num_columns (selector) !=
 568       g_slist_length (current_selection)) {
 569     /* We conclude that if the current selection has the same
 570        numbers of columns that the selector, all this ok
 571        Anyway this shouldn't happen. */
 572     g_critical ("Trying to restore the selection on a selector after change"
 573                 " the number of columns. Are you removing columns while the"
 574                 " dialog is open?");
 575     return;
 576   }
 577
 578   if (dialog->priv->signal_changed_id)
 579     g_signal_handler_block (selector, dialog->priv->signal_changed_id);
 580   for (iter = current_selection, i = 0; iter; iter = g_slist_next (iter), i++) {
 581     selected = (GList *) (iter->data);
 582     model = hildon_touch_selector_get_model (selector, i);
 583     hildon_touch_selector_unselect_all (selector, i);
 584     for (selected_iter = selected; selected_iter; selected_iter = g_list_next (selected_iter)) {
 585       current_path = (GtkTreePath *) selected_iter->data;
 586       gtk_tree_model_get_iter (model, &tree_iter, current_path);
 587       hildon_touch_selector_select_iter (selector, i, &tree_iter, FALSE);
 588     }
 589   }
 590   if (HILDON_IS_TOUCH_SELECTOR_ENTRY (selector) && dialog->priv->current_text != NULL) {
 591     HildonEntry *entry = hildon_touch_selector_entry_get_entry (HILDON_TOUCH_SELECTOR_ENTRY (selector));
 592     hildon_entry_set_text (entry, dialog->priv->current_text);
 593   }
 594   if (dialog->priv->signal_changed_id)
 595     g_signal_handler_unblock (selector, dialog->priv->signal_changed_id);
 596 }
 597
 598 static gboolean
 599 requires_done_button (HildonPickerDialog * dialog)
 600 {
 601   return hildon_touch_selector_has_multiple_selection
 602     (HILDON_TOUCH_SELECTOR (dialog->priv->selector));
 603 }
 604
 605 static void
 606 prepare_action_area (HildonPickerDialog *dialog)
 607 {
 608   if (requires_done_button (dialog)) {
 609     gtk_widget_show (GTK_DIALOG (dialog)->action_area);
 610   } else {
 611     gtk_widget_hide (GTK_DIALOG (dialog)->action_area);
 612   }
 613 }
 614
 615 static void
 616 setup_interaction_mode (HildonPickerDialog * dialog)
 617 {
 618   if (dialog->priv->signal_changed_id) {
 619     g_signal_handler_disconnect (dialog->priv->selector,
 620                                  dialog->priv->signal_changed_id);
 621   }
 622
 623   if (requires_done_button (dialog) == FALSE) {
 624     dialog->priv->signal_changed_id =
 625       g_signal_connect (G_OBJECT (dialog->priv->selector), "changed",
 626                         G_CALLBACK (_select_on_selector_changed_cb), dialog);
 627   }
 628 }
 629
 630 /*------------------------- PUBLIC METHODS ---------------------------- */
 631
 632 /**
 633  * hildon_picker_dialog_new:
 634  * @parent: the parent window
 635  *
 636  * Creates a new #HildonPickerDialog
 637  *
 638  * Returns: a new #HildonPickerDialog
 639  *
 640  * Since: 2.2
 641  **/
 642 GtkWidget *
 643 hildon_picker_dialog_new (GtkWindow * parent)
 644 {
 645   GtkDialog *dialog = NULL;
 646
 647   dialog = g_object_new (HILDON_TYPE_PICKER_DIALOG, NULL);
 648
 649   if (parent) {
 650     gtk_window_set_transient_for (GTK_WINDOW (dialog), parent);
 651   }
 652
 653   return GTK_WIDGET (dialog);
 654 }
 655
 656
 657 static gboolean
 658 _hildon_picker_dialog_set_selector (HildonPickerDialog * dialog,
 659                                     HildonTouchSelector * selector)
 660 {
 661   g_object_ref (selector);
 662
 663   /* Remove the old selector, if any */
 664   if (dialog->priv->selector != NULL) {
 665     gtk_container_remove (GTK_CONTAINER (GTK_DIALOG (dialog)->vbox),
 666                           dialog->priv->selector);
 667     if (dialog->priv->signal_columns_changed_id) {
 668             g_signal_handler_disconnect (dialog->priv->selector,
 669                                          dialog->priv->signal_columns_changed_id);
 670     }
 671   }
 672
 673   dialog->priv->selector = GTK_WIDGET (selector);
 674
 675   /* Pack the new selector */
 676   gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->vbox),
 677                       dialog->priv->selector, TRUE, TRUE, 0);
 678
 679   g_object_unref (selector);
 680
 681   gtk_widget_show (dialog->priv->selector);
 682
 683   prepare_action_area (dialog);
 684   if (GTK_WIDGET_REALIZED (dialog)) {
 685     setup_interaction_mode (dialog);
 686   }
 687
 688   dialog->priv->signal_columns_changed_id = g_signal_connect (G_OBJECT (dialog->priv->selector),
 689                                                               "columns-changed",
 690                                                               G_CALLBACK (on_selector_columns_changed), dialog);
 691   return TRUE;
 692 }
 693
 694 /**
 695  * hildon_picker_dialog_set_selector:
 696  * @dialog: a #HildonPickerDialog
 697  * @selector: a #HildonTouchSelector
 698  *
 699  * Sets @selector as the #HildonTouchSelector to be shown in @dialog
 700  *
 701  * Returns: %TRUE if @selector was set, %FALSE otherwise
 702  *
 703  * Since: 2.2
 704  **/
 705 gboolean
 706 hildon_picker_dialog_set_selector (HildonPickerDialog * dialog,
 707                                    HildonTouchSelector * selector)
 708 {
 709   g_return_val_if_fail (HILDON_IS_PICKER_DIALOG (dialog), FALSE);
 710   g_return_val_if_fail (HILDON_IS_TOUCH_SELECTOR (selector), FALSE);
 711
 712   return HILDON_PICKER_DIALOG_GET_CLASS (dialog)->set_selector (dialog, selector);
 713 }
 714
 715 /**
 716  * hildon_picker_dialog_get_selector:
 717  * @dialog: a #HildonPickerDialog
 718  *
 719  * Retrieves the #HildonTouchSelector associated to @dialog.
 720  *
 721  * Returns: a #HildonTouchSelector
 722  *
 723  * Since: 2.2
 724  **/
 725 HildonTouchSelector *
 726 hildon_picker_dialog_get_selector (HildonPickerDialog * dialog)
 727 {
 728   g_return_val_if_fail (HILDON_IS_PICKER_DIALOG (dialog), NULL);
 729
 730   return HILDON_TOUCH_SELECTOR (dialog->priv->selector);
 731 }