Pileus Git - ~andy/gtk/blob - gtk/gtkentrycompletion.c

   1 /* gtkentrycompletion.c
   2  * Copyright (C) 2003  Kristian Rietveld  <kris@gtk.org>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 #include <config.h>
  21 #include "gtkentrycompletion.h"
  22 #include "gtkentryprivate.h"
  23 #include "gtkcelllayout.h"
  24
  25 #include "gtkintl.h"
  26 #include "gtkcellrenderertext.h"
  27 #include "gtkframe.h"
  28 #include "gtktreeselection.h"
  29 #include "gtktreeview.h"
  30 #include "gtkscrolledwindow.h"
  31 #include "gtkvbox.h"
  32 #include "gtkwindow.h"
  33 #include "gtkentry.h"
  34 #include "gtkmain.h"
  35 #include "gtksignal.h"
  36 #include "gtkmarshalers.h"
  37
  38 #include "gtkprivate.h"
  39 #include "gtkalias.h"
  40
  41 #include <string.h>
  42
  43
  44 /* signals */
  45 enum
  46 {
  47   INSERT_PREFIX,
  48   MATCH_SELECTED,
  49   ACTION_ACTIVATED,
  50   LAST_SIGNAL
  51 };
  52
  53 /* properties */
  54 enum
  55 {
  56   PROP_0,
  57   PROP_MODEL,
  58   PROP_MINIMUM_KEY_LENGTH,
  59   PROP_TEXT_COLUMN,
  60   PROP_INLINE_COMPLETION,
  61   PROP_POPUP_COMPLETION,
  62   PROP_POPUP_SET_WIDTH,
  63   PROP_POPUP_SINGLE_MATCH
  64 };
  65
  66 #define GTK_ENTRY_COMPLETION_GET_PRIVATE(obj)(G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_ENTRY_COMPLETION, GtkEntryCompletionPrivate))
  67
  68 static void     gtk_entry_completion_class_init          (GtkEntryCompletionClass *klass);
  69 static void     gtk_entry_completion_cell_layout_init    (GtkCellLayoutIface      *iface);
  70 static void     gtk_entry_completion_init                (GtkEntryCompletion      *completion);
  71 static void     gtk_entry_completion_set_property        (GObject                 *object,
  72                                                           guint                    prop_id,
  73                                                           const GValue            *value,
  74                                                           GParamSpec              *pspec);
  75 static void     gtk_entry_completion_get_property        (GObject                 *object,
  76                                                           guint                    prop_id,
  77                                                           GValue                  *value,
  78                                                           GParamSpec              *pspec);
  79 static void     gtk_entry_completion_finalize            (GObject                 *object);
  80
  81 static void     gtk_entry_completion_pack_start          (GtkCellLayout           *cell_layout,
  82                                                           GtkCellRenderer         *cell,
  83                                                           gboolean                 expand);
  84 static void     gtk_entry_completion_pack_end            (GtkCellLayout           *cell_layout,
  85                                                           GtkCellRenderer         *cell,
  86                                                           gboolean                 expand);
  87 static void     gtk_entry_completion_clear               (GtkCellLayout           *cell_layout);
  88 static void     gtk_entry_completion_add_attribute       (GtkCellLayout           *cell_layout,
  89                                                           GtkCellRenderer         *cell,
  90                                                           const char              *attribute,
  91                                                           gint                     column);
  92 static void     gtk_entry_completion_set_cell_data_func  (GtkCellLayout           *cell_layout,
  93                                                           GtkCellRenderer         *cell,
  94                                                           GtkCellLayoutDataFunc    func,
  95                                                           gpointer                 func_data,
  96                                                           GDestroyNotify           destroy);
  97 static void     gtk_entry_completion_clear_attributes    (GtkCellLayout           *cell_layout,
  98                                                           GtkCellRenderer         *cell);
  99 static void     gtk_entry_completion_reorder             (GtkCellLayout           *cell_layout,
 100                                                           GtkCellRenderer         *cell,
 101                                                           gint                     position);
 102
 103 static gboolean gtk_entry_completion_visible_func        (GtkTreeModel            *model,
 104                                                           GtkTreeIter             *iter,
 105                                                           gpointer                 data);
 106 static gboolean gtk_entry_completion_popup_key_press     (GtkWidget               *widget,
 107                                                           GdkEventKey             *event,
 108                                                           gpointer                 user_data);
 109 static gboolean gtk_entry_completion_popup_button_press  (GtkWidget               *widget,
 110                                                           GdkEventButton          *event,
 111                                                           gpointer                 user_data);
 112 static gboolean gtk_entry_completion_list_button_press   (GtkWidget               *widget,
 113                                                           GdkEventButton          *event,
 114                                                           gpointer                 user_data);
 115 static gboolean gtk_entry_completion_action_button_press (GtkWidget               *widget,
 116                                                           GdkEventButton          *event,
 117                                                           gpointer                 user_data);
 118 static void     gtk_entry_completion_selection_changed   (GtkTreeSelection        *selection,
 119                                                           gpointer                 data);
 120 static gboolean gtk_entry_completion_list_enter_notify   (GtkWidget               *widget,
 121                                                           GdkEventCrossing        *event,
 122                                                           gpointer                 data);
 123 static gboolean gtk_entry_completion_list_motion_notify  (GtkWidget               *widget,
 124                                                           GdkEventMotion          *event,
 125                                                           gpointer                 data);
 126 static void     gtk_entry_completion_insert_action       (GtkEntryCompletion      *completion,
 127                                                           gint                     index,
 128                                                           const gchar             *string,
 129                                                           gboolean                 markup);
 130 static void     gtk_entry_completion_action_data_func    (GtkTreeViewColumn       *tree_column,
 131                                                           GtkCellRenderer         *cell,
 132                                                           GtkTreeModel            *model,
 133                                                           GtkTreeIter             *iter,
 134                                                           gpointer                 data);
 135
 136 static gboolean gtk_entry_completion_match_selected      (GtkEntryCompletion *completion,
 137                                                           GtkTreeModel       *model,
 138                                                           GtkTreeIter        *iter);
 139 static gboolean gtk_entry_completion_real_insert_prefix  (GtkEntryCompletion *completion,
 140                                                           const gchar        *prefix);
 141
 142 static GObjectClass *parent_class = NULL;
 143 static guint entry_completion_signals[LAST_SIGNAL] = { 0 };
 144
 145
 146 GType
 147 gtk_entry_completion_get_type (void)
 148 {
 149   static GType entry_completion_type = 0;
 150
 151   if (!entry_completion_type)
 152     {
 153       static const GTypeInfo entry_completion_info =
 154       {
 155         sizeof (GtkEntryCompletionClass),
 156         NULL,
 157         NULL,
 158         (GClassInitFunc) gtk_entry_completion_class_init,
 159         NULL,
 160         NULL,
 161         sizeof (GtkEntryCompletion),
 162         0,
 163         (GInstanceInitFunc) gtk_entry_completion_init
 164       };
 165
 166       static const GInterfaceInfo cell_layout_info =
 167       {
 168         (GInterfaceInitFunc) gtk_entry_completion_cell_layout_init,
 169         NULL,
 170         NULL
 171       };
 172
 173       entry_completion_type =
 174         g_type_register_static (G_TYPE_OBJECT, I_("GtkEntryCompletion"),
 175                                 &entry_completion_info, 0);
 176
 177       g_type_add_interface_static (entry_completion_type,
 178                                    GTK_TYPE_CELL_LAYOUT,
 179                                    &cell_layout_info);
 180     }
 181
 182   return entry_completion_type;
 183 }
 184
 185 static void
 186 gtk_entry_completion_class_init (GtkEntryCompletionClass *klass)
 187 {
 188   GObjectClass *object_class;
 189
 190   parent_class = g_type_class_peek_parent (klass);
 191   object_class = (GObjectClass *)klass;
 192
 193   object_class->set_property = gtk_entry_completion_set_property;
 194   object_class->get_property = gtk_entry_completion_get_property;
 195   object_class->finalize = gtk_entry_completion_finalize;
 196
 197   klass->match_selected = gtk_entry_completion_match_selected;
 198   klass->insert_prefix = gtk_entry_completion_real_insert_prefix;
 199
 200   /**
 201    * GtkEntryCompletion::insert-prefix:
 202    * @widget: the object which received the signal
 203    * @prefix: the common prefix of all possible completions
 204    *
 205    * Gets emitted when the inline autocompletion is triggered.
 206    * The default behaviour is to make the entry display the
 207    * whole prefix and select the newly inserted part.
 208    *
 209    * Applications may connect to this signal in order to insert only a
 210    * smaller part of the @prefix into the entry - e.g. the entry used in
 211    * the #GtkFileChooser inserts only the part of the prefix up to the
 212    * next '/'.
 213    *
 214    * Return value: %TRUE if the signal has been handled
 215    *
 216    * Since: 2.6
 217    */
 218   entry_completion_signals[INSERT_PREFIX] =
 219     g_signal_new (I_("insert_prefix"),
 220                   G_TYPE_FROM_CLASS (klass),
 221                   G_SIGNAL_RUN_LAST,
 222                   G_STRUCT_OFFSET (GtkEntryCompletionClass, insert_prefix),
 223                   _gtk_boolean_handled_accumulator, NULL,
 224                   _gtk_marshal_BOOLEAN__STRING,
 225                   G_TYPE_BOOLEAN, 1,
 226                   G_TYPE_STRING);
 227
 228   /**
 229    * GtkEntryCompletion::match-selected:
 230    * @widget: the object which received the signal
 231    * @model: the #GtkTreeModel containing the matches
 232    * @iter: a #GtkTreeIter positioned at the selected match
 233    *
 234    * Gets emitted when a match from the list is selected.
 235    * The default behaviour is to replace the contents of the
 236    * entry with the contents of the text column in the row
 237    * pointed to by @iter.
 238    *
 239    * Return value: %TRUE if the signal has been handled
 240    *
 241    * Since: 2.4
 242    */
 243   entry_completion_signals[MATCH_SELECTED] =
 244     g_signal_new (I_("match_selected"),
 245                   G_TYPE_FROM_CLASS (klass),
 246                   G_SIGNAL_RUN_LAST,
 247                   G_STRUCT_OFFSET (GtkEntryCompletionClass, match_selected),
 248                   _gtk_boolean_handled_accumulator, NULL,
 249                   _gtk_marshal_BOOLEAN__OBJECT_BOXED,
 250                   G_TYPE_BOOLEAN, 2,
 251                   GTK_TYPE_TREE_MODEL,
 252                   GTK_TYPE_TREE_ITER);
 253
 254   /**
 255    * GtkEntryCompletion::action-activated:
 256    * @widget: the object which received the signal
 257    * @index: the index of the activated action
 258    *
 259    * Gets emitted when an action is activated.
 260    *
 261    * Since: 2.4
 262    */
 263   entry_completion_signals[ACTION_ACTIVATED] =
 264     g_signal_new (I_("action_activated"),
 265                   G_TYPE_FROM_CLASS (klass),
 266                   G_SIGNAL_RUN_LAST,
 267                   G_STRUCT_OFFSET (GtkEntryCompletionClass, action_activated),
 268                   NULL, NULL,
 269                   _gtk_marshal_NONE__INT,
 270                   G_TYPE_NONE, 1,
 271                   G_TYPE_INT);
 272
 273   g_object_class_install_property (object_class,
 274                                    PROP_MODEL,
 275                                    g_param_spec_object ("model",
 276                                                         P_("Completion Model"),
 277                                                         P_("The model to find matches in"),
 278                                                         GTK_TYPE_TREE_MODEL,
 279                                                         GTK_PARAM_READWRITE));
 280   g_object_class_install_property (object_class,
 281                                    PROP_MINIMUM_KEY_LENGTH,
 282                                    g_param_spec_int ("minimum-key-length",
 283                                                      P_("Minimum Key Length"),
 284                                                      P_("Minimum length of the search key in order to look up matches"),
 285                                                      0,
 286                                                      G_MAXINT,
 287                                                      1,
 288                                                      GTK_PARAM_READWRITE));
 289   /**
 290    * GtkEntryCompletion:text-column:
 291    *
 292    * The column of the model containing the strings.
 293    *
 294    * Since: 2.6
 295    */
 296   g_object_class_install_property (object_class,
 297                                    PROP_TEXT_COLUMN,
 298                                    g_param_spec_int ("text-column",
 299                                                      P_("Text column"),
 300                                                      P_("The column of the model containing the strings."),
 301                                                      -1,
 302                                                      G_MAXINT,
 303                                                      -1,
 304                                                      GTK_PARAM_READWRITE));
 305
 306   /**
 307    * GtkEntryCompletion:inline-completion:
 308    *
 309    * Determines whether the common prefix of the possible completions
 310    * should be inserted automatically in the entry. Note that this
 311    * requires text-column to be set, even if you are using a custom
 312    * match function.
 313    *
 314    * Since: 2.6
 315    **/
 316   g_object_class_install_property (object_class,
 317                                    PROP_INLINE_COMPLETION,
 318                                    g_param_spec_boolean ("inline-completion",
 319                                                          P_("Inline completion"),
 320                                                          P_("Whether the common prefix should be inserted automatically"),
 321                                                          FALSE,
 322                                                          GTK_PARAM_READWRITE));
 323   /**
 324    * GtkEntryCompletion:popup-completion:
 325    *
 326    * Determines whether the possible completions should be
 327    * shown in a popup window.
 328    *
 329    * Since: 2.6
 330    **/
 331   g_object_class_install_property (object_class,
 332                                    PROP_POPUP_COMPLETION,
 333                                    g_param_spec_boolean ("popup-completion",
 334                                                          P_("Popup completion"),
 335                                                          P_("Whether the completions should be shown in a popup window"),
 336                                                          TRUE,
 337                                                          GTK_PARAM_READWRITE));
 338
 339   /**
 340    * GtkEntryCompletion:popup-set-width:
 341    *
 342    * Determines whether the completions popup window will be
 343    * resized to the width of the entry.
 344    *
 345    * Since: 2.8
 346    */
 347   g_object_class_install_property (object_class,
 348                                    PROP_POPUP_SET_WIDTH,
 349                                    g_param_spec_boolean ("popup-set-width",
 350                                                          P_("Popup set width"),
 351                                                          P_("If TRUE, the popup window will have the same size as the entry"),
 352                                                          TRUE,
 353                                                          GTK_PARAM_READWRITE));
 354
 355   /**
 356    * GtkEntryCompletion:popup-single-match:
 357    *
 358    * Determines whether the completions popup window will shown
 359    * for a single possible completion. You probably want to set
 360    * this to %FALSE if you are using
 361    * <link linkend="GtkEntryCompletion--inline-completion">inline
 362    * completion</link>.
 363    *
 364    * Since: 2.8
 365    */
 366   g_object_class_install_property (object_class,
 367                                    PROP_POPUP_SINGLE_MATCH,
 368                                    g_param_spec_boolean ("popup-single-match",
 369                                                          P_("Popup single match"),
 370                                                          P_("If TRUE, the popup window will appear for a single match."),
 371                                                          TRUE,
 372                                                          GTK_PARAM_READWRITE));
 373
 374   g_type_class_add_private (object_class, sizeof (GtkEntryCompletionPrivate));
 375 }
 376
 377 static void
 378 gtk_entry_completion_cell_layout_init (GtkCellLayoutIface *iface)
 379 {
 380   iface->pack_start = gtk_entry_completion_pack_start;
 381   iface->pack_end = gtk_entry_completion_pack_end;
 382   iface->clear = gtk_entry_completion_clear;
 383   iface->add_attribute = gtk_entry_completion_add_attribute;
 384   iface->set_cell_data_func = gtk_entry_completion_set_cell_data_func;
 385   iface->clear_attributes = gtk_entry_completion_clear_attributes;
 386   iface->reorder = gtk_entry_completion_reorder;
 387 }
 388
 389 static void
 390 gtk_entry_completion_init (GtkEntryCompletion *completion)
 391 {
 392   GtkCellRenderer *cell;
 393   GtkTreeSelection *sel;
 394   GtkEntryCompletionPrivate *priv;
 395   GtkWidget *popup_frame;
 396
 397   /* yes, also priv, need to keep the code readable */
 398   priv = completion->priv = GTK_ENTRY_COMPLETION_GET_PRIVATE (completion);
 399
 400   priv->minimum_key_length = 1;
 401   priv->text_column = -1;
 402   priv->has_completion = FALSE;
 403   priv->inline_completion = FALSE;
 404   priv->popup_completion = TRUE;
 405   priv->popup_set_width = TRUE;
 406   priv->popup_single_match = TRUE;
 407
 408   /* completions */
 409   priv->filter_model = NULL;
 410
 411   priv->tree_view = gtk_tree_view_new ();
 412   g_signal_connect (priv->tree_view, "button_press_event",
 413                     G_CALLBACK (gtk_entry_completion_list_button_press),
 414                     completion);
 415   g_signal_connect (priv->tree_view, "enter_notify_event",
 416                     G_CALLBACK (gtk_entry_completion_list_enter_notify),
 417                     completion);
 418   g_signal_connect (priv->tree_view, "motion_notify_event",
 419                     G_CALLBACK (gtk_entry_completion_list_motion_notify),
 420                     completion);
 421   gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (priv->tree_view), FALSE);
 422   gtk_tree_view_set_hover_selection (GTK_TREE_VIEW (priv->tree_view), TRUE);
 423
 424   sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->tree_view));
 425   gtk_tree_selection_set_mode (sel, GTK_SELECTION_SINGLE);
 426   gtk_tree_selection_unselect_all (sel);
 427   g_signal_connect (sel, "changed",
 428                     G_CALLBACK (gtk_entry_completion_selection_changed),
 429                     completion);
 430   priv->first_sel_changed = TRUE;
 431
 432   priv->column = gtk_tree_view_column_new ();
 433   gtk_tree_view_append_column (GTK_TREE_VIEW (priv->tree_view), priv->column);
 434
 435   priv->scrolled_window = gtk_scrolled_window_new (NULL, NULL);
 436   gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window),
 437                                   GTK_POLICY_NEVER,
 438                                   GTK_POLICY_AUTOMATIC);
 439   gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (priv->scrolled_window),
 440                                        GTK_SHADOW_NONE);
 441
 442   /* a nasty hack to get the completions treeview to size nicely */
 443   gtk_widget_set_size_request (GTK_SCROLLED_WINDOW (priv->scrolled_window)->vscrollbar, -1, 0);
 444
 445   /* actions */
 446   priv->actions = gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_BOOLEAN);
 447
 448   priv->action_view =
 449     gtk_tree_view_new_with_model (GTK_TREE_MODEL (priv->actions));
 450   g_signal_connect (priv->action_view, "button_press_event",
 451                     G_CALLBACK (gtk_entry_completion_action_button_press),
 452                     completion);
 453   g_signal_connect (priv->action_view, "enter_notify_event",
 454                     G_CALLBACK (gtk_entry_completion_list_enter_notify),
 455                     completion);
 456   g_signal_connect (priv->action_view, "motion_notify_event",
 457                     G_CALLBACK (gtk_entry_completion_list_motion_notify),
 458                     completion);
 459   gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (priv->action_view), FALSE);
 460   gtk_tree_view_set_hover_selection (GTK_TREE_VIEW (priv->action_view), TRUE);
 461
 462   sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->action_view));
 463   gtk_tree_selection_set_mode (sel, GTK_SELECTION_SINGLE);
 464   gtk_tree_selection_unselect_all (sel);
 465
 466   cell = gtk_cell_renderer_text_new ();
 467   gtk_tree_view_insert_column_with_data_func (GTK_TREE_VIEW (priv->action_view),
 468                                               0, "",
 469                                               cell,
 470                                               gtk_entry_completion_action_data_func,
 471                                               NULL,
 472                                               NULL);
 473
 474   /* pack it all */
 475   priv->popup_window = gtk_window_new (GTK_WINDOW_POPUP);
 476   gtk_window_set_resizable (GTK_WINDOW (priv->popup_window), FALSE);
 477   g_signal_connect (priv->popup_window, "key_press_event",
 478                     G_CALLBACK (gtk_entry_completion_popup_key_press),
 479                     completion);
 480   g_signal_connect (priv->popup_window, "button_press_event",
 481                     G_CALLBACK (gtk_entry_completion_popup_button_press),
 482                     completion);
 483
 484   popup_frame = gtk_frame_new (NULL);
 485   gtk_frame_set_shadow_type (GTK_FRAME (popup_frame),
 486                              GTK_SHADOW_ETCHED_IN);
 487   gtk_widget_show (popup_frame);
 488   gtk_container_add (GTK_CONTAINER (priv->popup_window), popup_frame);
 489
 490   priv->vbox = gtk_vbox_new (FALSE, 0);
 491   gtk_container_add (GTK_CONTAINER (popup_frame), priv->vbox);
 492
 493   gtk_container_add (GTK_CONTAINER (priv->scrolled_window), priv->tree_view);
 494   gtk_box_pack_start (GTK_BOX (priv->vbox), priv->scrolled_window,
 495                       TRUE, TRUE, 0);
 496
 497   /* we don't want to see the action treeview when no actions have
 498    * been inserted, so we pack the action treeview after the first
 499    * action has been added
 500    */
 501 }
 502
 503 static void
 504 gtk_entry_completion_set_property (GObject      *object,
 505                                    guint         prop_id,
 506                                    const GValue *value,
 507                                    GParamSpec   *pspec)
 508 {
 509   GtkEntryCompletion *completion = GTK_ENTRY_COMPLETION (object);
 510   GtkEntryCompletionPrivate *priv = GTK_ENTRY_COMPLETION_GET_PRIVATE (completion);
 511
 512   switch (prop_id)
 513     {
 514       case PROP_MODEL:
 515         gtk_entry_completion_set_model (completion,
 516                                         g_value_get_object (value));
 517         break;
 518
 519       case PROP_MINIMUM_KEY_LENGTH:
 520         gtk_entry_completion_set_minimum_key_length (completion,
 521                                                      g_value_get_int (value));
 522         break;
 523
 524       case PROP_TEXT_COLUMN:
 525         priv->text_column = g_value_get_int (value);
 526         break;
 527
 528       case PROP_INLINE_COMPLETION:
 529         priv->inline_completion = g_value_get_boolean (value);
 530         break;
 531
 532       case PROP_POPUP_COMPLETION:
 533         priv->popup_completion = g_value_get_boolean (value);
 534         break;
 535
 536       case PROP_POPUP_SET_WIDTH:
 537         priv->popup_set_width = g_value_get_boolean (value);
 538         break;
 539
 540       case PROP_POPUP_SINGLE_MATCH:
 541         priv->popup_single_match = g_value_get_boolean (value);
 542         break;
 543
 544       default:
 545         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 546         break;
 547     }
 548 }
 549
 550 static void
 551 gtk_entry_completion_get_property (GObject    *object,
 552                                    guint       prop_id,
 553                                    GValue     *value,
 554                                    GParamSpec *pspec)
 555 {
 556   GtkEntryCompletion *completion = GTK_ENTRY_COMPLETION (object);
 557
 558   switch (prop_id)
 559     {
 560       case PROP_MODEL:
 561         g_value_set_object (value,
 562                             gtk_entry_completion_get_model (completion));
 563         break;
 564
 565       case PROP_MINIMUM_KEY_LENGTH:
 566         g_value_set_int (value, gtk_entry_completion_get_minimum_key_length (completion));
 567         break;
 568
 569       case PROP_TEXT_COLUMN:
 570         g_value_set_int (value, gtk_entry_completion_get_text_column (completion));
 571         break;
 572
 573       case PROP_INLINE_COMPLETION:
 574         g_value_set_boolean (value, gtk_entry_completion_get_inline_completion (completion));
 575         break;
 576
 577       case PROP_POPUP_COMPLETION:
 578         g_value_set_boolean (value, gtk_entry_completion_get_popup_completion (completion));
 579         break;
 580
 581       case PROP_POPUP_SET_WIDTH:
 582         g_value_set_boolean (value, gtk_entry_completion_get_popup_set_width (completion));
 583         break;
 584
 585       case PROP_POPUP_SINGLE_MATCH:
 586         g_value_set_boolean (value, gtk_entry_completion_get_popup_single_match (completion));
 587         break;
 588
 589       default:
 590         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 591         break;
 592     }
 593 }
 594
 595 static void
 596 gtk_entry_completion_finalize (GObject *object)
 597 {
 598   GtkEntryCompletion *completion = GTK_ENTRY_COMPLETION (object);
 599
 600   if (completion->priv->tree_view)
 601     gtk_widget_destroy (completion->priv->tree_view);
 602
 603   if (completion->priv->entry)
 604     gtk_entry_set_completion (GTK_ENTRY (completion->priv->entry), NULL);
 605
 606   if (completion->priv->actions)
 607     g_object_unref (completion->priv->actions);
 608
 609   if (completion->priv->case_normalized_key)
 610     g_free (completion->priv->case_normalized_key);
 611
 612   if (completion->priv->popup_window)
 613     gtk_widget_destroy (completion->priv->popup_window);
 614
 615   G_OBJECT_CLASS (parent_class)->finalize (object);
 616 }
 617
 618 /* implement cell layout interface */
 619 static void
 620 gtk_entry_completion_pack_start (GtkCellLayout   *cell_layout,
 621                                  GtkCellRenderer *cell,
 622                                  gboolean         expand)
 623 {
 624   GtkEntryCompletionPrivate *priv;
 625
 626   g_return_if_fail (GTK_IS_ENTRY_COMPLETION (cell_layout));
 627
 628   priv = GTK_ENTRY_COMPLETION_GET_PRIVATE (cell_layout);
 629
 630   gtk_tree_view_column_pack_start (priv->column, cell, expand);
 631 }
 632
 633 static void
 634 gtk_entry_completion_pack_end (GtkCellLayout   *cell_layout,
 635                                GtkCellRenderer *cell,
 636                                gboolean         expand)
 637 {
 638   GtkEntryCompletionPrivate *priv;
 639
 640   g_return_if_fail (GTK_IS_ENTRY_COMPLETION (cell_layout));
 641
 642   priv = GTK_ENTRY_COMPLETION_GET_PRIVATE (cell_layout);
 643
 644   gtk_tree_view_column_pack_end (priv->column, cell, expand);
 645 }
 646
 647 static void
 648 gtk_entry_completion_clear (GtkCellLayout *cell_layout)
 649 {
 650   GtkEntryCompletionPrivate *priv;
 651
 652   g_return_if_fail (GTK_IS_ENTRY_COMPLETION (cell_layout));
 653
 654   priv = GTK_ENTRY_COMPLETION_GET_PRIVATE (cell_layout);
 655
 656   gtk_tree_view_column_clear (priv->column);
 657 }
 658
 659 static void
 660 gtk_entry_completion_add_attribute (GtkCellLayout   *cell_layout,
 661                                     GtkCellRenderer *cell,
 662                                     const gchar     *attribute,
 663                                     gint             column)
 664 {
 665   GtkEntryCompletionPrivate *priv;
 666
 667   g_return_if_fail (GTK_IS_ENTRY_COMPLETION (cell_layout));
 668
 669   priv = GTK_ENTRY_COMPLETION_GET_PRIVATE (cell_layout);
 670
 671   gtk_tree_view_column_add_attribute (priv->column, cell, attribute, column);
 672 }
 673
 674 static void
 675 gtk_entry_completion_set_cell_data_func (GtkCellLayout          *cell_layout,
 676                                          GtkCellRenderer        *cell,
 677                                          GtkCellLayoutDataFunc   func,
 678                                          gpointer                func_data,
 679                                          GDestroyNotify          destroy)
 680 {
 681   GtkEntryCompletionPrivate *priv;
 682
 683   g_return_if_fail (GTK_IS_ENTRY_COMPLETION (cell_layout));
 684
 685   priv = GTK_ENTRY_COMPLETION_GET_PRIVATE (cell_layout);
 686
 687   gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (priv->column),
 688                                       cell, func, func_data, destroy);
 689 }
 690
 691 static void
 692 gtk_entry_completion_clear_attributes (GtkCellLayout   *cell_layout,
 693                                        GtkCellRenderer *cell)
 694 {
 695   GtkEntryCompletionPrivate *priv;
 696
 697   g_return_if_fail (GTK_IS_ENTRY_COMPLETION (cell_layout));
 698
 699   priv = GTK_ENTRY_COMPLETION_GET_PRIVATE (cell_layout);
 700
 701   gtk_tree_view_column_clear_attributes (priv->column, cell);
 702 }
 703
 704 static void
 705 gtk_entry_completion_reorder (GtkCellLayout   *cell_layout,
 706                               GtkCellRenderer *cell,
 707                               gint             position)
 708 {
 709   GtkEntryCompletionPrivate *priv;
 710
 711   g_return_if_fail (GTK_IS_ENTRY_COMPLETION (cell_layout));
 712
 713   priv = GTK_ENTRY_COMPLETION_GET_PRIVATE (cell_layout);
 714
 715   gtk_cell_layout_reorder (GTK_CELL_LAYOUT (priv->column), cell, position);
 716 }
 717
 718 /* all those callbacks */
 719 static gboolean
 720 gtk_entry_completion_default_completion_func (GtkEntryCompletion *completion,
 721                                               const gchar        *key,
 722                                               GtkTreeIter        *iter,
 723                                               gpointer            user_data)
 724 {
 725   gchar *item = NULL;
 726   gchar *normalized_string;
 727   gchar *case_normalized_string;
 728
 729   gboolean ret = FALSE;
 730
 731   GtkTreeModel *model;
 732
 733   model = gtk_tree_model_filter_get_model (completion->priv->filter_model);
 734
 735   g_return_val_if_fail (gtk_tree_model_get_column_type (model, completion->priv->text_column) == G_TYPE_STRING,
 736                         FALSE);
 737
 738   gtk_tree_model_get (model, iter,
 739                       completion->priv->text_column, &item,
 740                       -1);
 741
 742   if (item != NULL)
 743     {
 744       normalized_string = g_utf8_normalize (item, -1, G_NORMALIZE_ALL);
 745       case_normalized_string = g_utf8_casefold (normalized_string, -1);
 746
 747       if (!strncmp (key, case_normalized_string, strlen (key)))
 748         ret = TRUE;
 749
 750       g_free (item);
 751       g_free (normalized_string);
 752       g_free (case_normalized_string);
 753     }
 754
 755   return ret;
 756 }
 757
 758 static gboolean
 759 gtk_entry_completion_visible_func (GtkTreeModel *model,
 760                                    GtkTreeIter  *iter,
 761                                    gpointer      data)
 762 {
 763   gboolean ret = FALSE;
 764
 765   GtkEntryCompletion *completion = GTK_ENTRY_COMPLETION (data);
 766
 767   if (!completion->priv->case_normalized_key)
 768     return ret;
 769
 770   if (completion->priv->match_func)
 771     ret = (* completion->priv->match_func) (completion,
 772                                             completion->priv->case_normalized_key,
 773                                             iter,
 774                                             completion->priv->match_data);
 775   else if (completion->priv->text_column >= 0)
 776     ret = gtk_entry_completion_default_completion_func (completion,
 777                                                         completion->priv->case_normalized_key,
 778                                                         iter,
 779                                                         NULL);
 780
 781   return ret;
 782 }
 783
 784 static gboolean
 785 gtk_entry_completion_popup_key_press (GtkWidget   *widget,
 786                                       GdkEventKey *event,
 787                                       gpointer     user_data)
 788 {
 789   GtkEntryCompletion *completion = GTK_ENTRY_COMPLETION (user_data);
 790
 791   if (!GTK_WIDGET_MAPPED (completion->priv->popup_window))
 792     return FALSE;
 793
 794   /* propagate event to the entry */
 795   gtk_widget_event (completion->priv->entry, (GdkEvent *)event);
 796
 797   return TRUE;
 798 }
 799
 800 static gboolean
 801 gtk_entry_completion_popup_button_press (GtkWidget      *widget,
 802                                          GdkEventButton *event,
 803                                          gpointer        user_data)
 804 {
 805   GtkEntryCompletion *completion = GTK_ENTRY_COMPLETION (user_data);
 806
 807   if (!GTK_WIDGET_MAPPED (completion->priv->popup_window))
 808     return FALSE;
 809
 810   /* if we come here, it's usually time to popdown */
 811   _gtk_entry_completion_popdown (completion);
 812
 813   return TRUE;
 814 }
 815
 816 static gboolean
 817 gtk_entry_completion_list_button_press (GtkWidget      *widget,
 818                                         GdkEventButton *event,
 819                                         gpointer        user_data)
 820 {
 821   GtkEntryCompletion *completion = GTK_ENTRY_COMPLETION (user_data);
 822   GtkTreePath *path = NULL;
 823
 824   if (!GTK_WIDGET_MAPPED (completion->priv->popup_window))
 825     return FALSE;
 826
 827   if (gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (widget),
 828                                      event->x, event->y,
 829                                      &path, NULL, NULL, NULL))
 830     {
 831       GtkTreeIter iter;
 832       gboolean entry_set;
 833
 834       gtk_tree_model_get_iter (GTK_TREE_MODEL (completion->priv->filter_model),
 835                                &iter, path);
 836       gtk_tree_path_free (path);
 837
 838       g_signal_handler_block (completion->priv->entry,
 839                               completion->priv->changed_id);
 840       g_signal_emit (completion, entry_completion_signals[MATCH_SELECTED],
 841                      0, GTK_TREE_MODEL (completion->priv->filter_model),
 842                      &iter, &entry_set);
 843       g_signal_handler_unblock (completion->priv->entry,
 844                                 completion->priv->changed_id);
 845
 846       _gtk_entry_completion_popdown (completion);
 847
 848       return TRUE;
 849     }
 850
 851   return FALSE;
 852 }
 853
 854 static gboolean
 855 gtk_entry_completion_action_button_press (GtkWidget      *widget,
 856                                           GdkEventButton *event,
 857                                           gpointer        user_data)
 858 {
 859   GtkEntryCompletion *completion = GTK_ENTRY_COMPLETION (user_data);
 860   GtkTreePath *path = NULL;
 861
 862   if (!GTK_WIDGET_MAPPED (completion->priv->popup_window))
 863     return FALSE;
 864
 865   if (gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (widget),
 866                                      event->x, event->y,
 867                                      &path, NULL, NULL, NULL))
 868     {
 869       g_signal_emit (completion, entry_completion_signals[ACTION_ACTIVATED],
 870                      0, gtk_tree_path_get_indices (path)[0]);
 871       gtk_tree_path_free (path);
 872
 873       _gtk_entry_completion_popdown (completion);
 874       return TRUE;
 875     }
 876
 877   return FALSE;
 878 }
 879
 880 static void
 881 gtk_entry_completion_action_data_func (GtkTreeViewColumn *tree_column,
 882                                        GtkCellRenderer   *cell,
 883                                        GtkTreeModel      *model,
 884                                        GtkTreeIter       *iter,
 885                                        gpointer           data)
 886 {
 887   gchar *string = NULL;
 888   gboolean markup;
 889
 890   gtk_tree_model_get (model, iter,
 891                       0, &string,
 892                       1, &markup,
 893                       -1);
 894
 895   if (!string)
 896     return;
 897
 898   if (markup)
 899     g_object_set (cell,
 900                   "text", NULL,
 901                   "markup", string,
 902                   NULL);
 903   else
 904     g_object_set (cell,
 905                   "markup", NULL,
 906                   "text", string,
 907                   NULL);
 908
 909   g_free (string);
 910 }
 911
 912 static void
 913 gtk_entry_completion_selection_changed (GtkTreeSelection *selection,
 914                                         gpointer          data)
 915 {
 916   GtkEntryCompletion *completion = GTK_ENTRY_COMPLETION (data);
 917
 918   if (completion->priv->first_sel_changed)
 919     {
 920       completion->priv->first_sel_changed = FALSE;
 921       if (gtk_widget_is_focus (completion->priv->tree_view))
 922         gtk_tree_selection_unselect_all (selection);
 923     }
 924 }
 925
 926 /* public API */
 927
 928 /**
 929  * gtk_entry_completion_new:
 930  *
 931  * Creates a new #GtkEntryCompletion object.
 932  *
 933  * Return value: A newly created #GtkEntryCompletion object.
 934  *
 935  * Since: 2.4
 936  */
 937 GtkEntryCompletion *
 938 gtk_entry_completion_new (void)
 939 {
 940   GtkEntryCompletion *completion;
 941
 942   completion = g_object_new (GTK_TYPE_ENTRY_COMPLETION, NULL);
 943
 944   return completion;
 945 }
 946
 947 /**
 948  * gtk_entry_completion_get_entry:
 949  * @completion: A #GtkEntryCompletion.
 950  *
 951  * Gets the entry @completion has been attached to.
 952  *
 953  * Return value: The entry @completion has been attached to.
 954  *
 955  * Since: 2.4
 956  */
 957 GtkWidget *
 958 gtk_entry_completion_get_entry (GtkEntryCompletion *completion)
 959 {
 960   g_return_val_if_fail (GTK_IS_ENTRY_COMPLETION (completion), NULL);
 961
 962   return completion->priv->entry;
 963 }
 964
 965 /**
 966  * gtk_entry_completion_set_model:
 967  * @completion: A #GtkEntryCompletion.
 968  * @model: The #GtkTreeModel.
 969  *
 970  * Sets the model for a #GtkEntryCompletion. If @completion already has
 971  * a model set, it will remove it before setting the new model.
 972  * If model is %NULL, then it will unset the model.
 973  *
 974  * Since: 2.4
 975  */
 976 void
 977 gtk_entry_completion_set_model (GtkEntryCompletion *completion,
 978                                 GtkTreeModel       *model)
 979 {
 980   g_return_if_fail (GTK_IS_ENTRY_COMPLETION (completion));
 981   g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model));
 982
 983   if (!model)
 984     {
 985       gtk_tree_view_set_model (GTK_TREE_VIEW (completion->priv->tree_view),
 986                                NULL);
 987       _gtk_entry_completion_popdown (completion);
 988       completion->priv->filter_model = NULL;
 989       return;
 990     }
 991
 992   /* code will unref the old filter model (if any) */
 993   completion->priv->filter_model =
 994     GTK_TREE_MODEL_FILTER (gtk_tree_model_filter_new (model, NULL));
 995   gtk_tree_model_filter_set_visible_func (completion->priv->filter_model,
 996                                           gtk_entry_completion_visible_func,
 997                                           completion,
 998                                           NULL);
 999
1000   gtk_tree_view_set_model (GTK_TREE_VIEW (completion->priv->tree_view),
1001                            GTK_TREE_MODEL (completion->priv->filter_model));
1002   g_object_unref (completion->priv->filter_model);
1003
1004   g_object_notify (G_OBJECT (completion), "model");
1005
1006   if (GTK_WIDGET_VISIBLE (completion->priv->popup_window))
1007     _gtk_entry_completion_resize_popup (completion);
1008 }
1009
1010 /**
1011  * gtk_entry_completion_get_model:
1012  * @completion: A #GtkEntryCompletion.
1013  *
1014  * Returns the model the #GtkEntryCompletion is using as data source.
1015  * Returns %NULL if the model is unset.
1016  *
1017  * Return value: A #GtkTreeModel, or %NULL if none is currently being used.
1018  *
1019  * Since: 2.4
1020  */
1021 GtkTreeModel *
1022 gtk_entry_completion_get_model (GtkEntryCompletion *completion)
1023 {
1024   g_return_val_if_fail (GTK_IS_ENTRY_COMPLETION (completion), NULL);
1025
1026   if (!completion->priv->filter_model)
1027     return NULL;
1028
1029   return gtk_tree_model_filter_get_model (completion->priv->filter_model);
1030 }
1031
1032 /**
1033  * gtk_entry_completion_set_match_func:
1034  * @completion: A #GtkEntryCompletion.
1035  * @func: The #GtkEntryCompletionMatchFunc to use.
1036  * @func_data: The user data for @func.
1037  * @func_notify: Destroy notifier for @func_data.
1038  *
1039  * Sets the match function for @completion to be @func. The match function
1040  * is used to determine if a row should or should not be in the completion
1041  * list.
1042  *
1043  * Since: 2.4.
1044  */
1045 void
1046 gtk_entry_completion_set_match_func (GtkEntryCompletion          *completion,
1047                                      GtkEntryCompletionMatchFunc  func,
1048                                      gpointer                     func_data,
1049                                      GDestroyNotify               func_notify)
1050 {
1051   g_return_if_fail (GTK_IS_ENTRY_COMPLETION (completion));
1052
1053   if (completion->priv->match_notify)
1054     (* completion->priv->match_notify) (completion->priv->match_data);
1055
1056   completion->priv->match_func = func;
1057   completion->priv->match_data = func_data;
1058   completion->priv->match_notify = func_notify;
1059 }
1060
1061 /**
1062  * gtk_entry_completion_set_minimum_key_length:
1063  * @completion: A #GtkEntryCompletion.
1064  * @length: The minimum length of the key in order to start completing.
1065  *
1066  * Requires the length of the search key for @completion to be at least
1067  * @length. This is useful for long lists, where completing using a small
1068  * key takes a lot of time and will come up with meaningless results anyway
1069  * (ie, a too large dataset).
1070  *
1071  * Since: 2.4
1072  */
1073 void
1074 gtk_entry_completion_set_minimum_key_length (GtkEntryCompletion *completion,
1075                                              gint                length)
1076 {
1077   g_return_if_fail (GTK_IS_ENTRY_COMPLETION (completion));
1078   g_return_if_fail (length >= 0);
1079
1080   if (completion->priv->minimum_key_length != length)
1081     {
1082       completion->priv->minimum_key_length = length;
1083
1084       g_object_notify (G_OBJECT (completion), "minimum-key-length");
1085     }
1086 }
1087
1088 /**
1089  * gtk_entry_completion_get_minimum_key_length:
1090  * @completion: A #GtkEntryCompletion.
1091  *
1092  * Returns the minimum key length as set for @completion.
1093  *
1094  * Return value: The currently used minimum key length.
1095  *
1096  * Since: 2.4
1097  */
1098 gint
1099 gtk_entry_completion_get_minimum_key_length (GtkEntryCompletion *completion)
1100 {
1101   g_return_val_if_fail (GTK_IS_ENTRY_COMPLETION (completion), 0);
1102
1103   return completion->priv->minimum_key_length;
1104 }
1105
1106 /**
1107  * gtk_entry_completion_complete:
1108  * @completion: A #GtkEntryCompletion.
1109  *
1110  * Requests a completion operation, or in other words a refiltering of the
1111  * current list with completions, using the current key. The completion list
1112  * view will be updated accordingly.
1113  *
1114  * Since: 2.4
1115  */
1116 void
1117 gtk_entry_completion_complete (GtkEntryCompletion *completion)
1118 {
1119   gchar *tmp;
1120
1121   g_return_if_fail (GTK_IS_ENTRY_COMPLETION (completion));
1122
1123   if (!completion->priv->filter_model)
1124     return;
1125
1126   if (completion->priv->case_normalized_key)
1127     g_free (completion->priv->case_normalized_key);
1128
1129   tmp = g_utf8_normalize (gtk_entry_get_text (GTK_ENTRY (completion->priv->entry)),
1130                           -1, G_NORMALIZE_ALL);
1131   completion->priv->case_normalized_key = g_utf8_casefold (tmp, -1);
1132   g_free (tmp);
1133
1134   gtk_tree_model_filter_refilter (completion->priv->filter_model);
1135
1136   if (GTK_WIDGET_VISIBLE (completion->priv->popup_window))
1137     _gtk_entry_completion_resize_popup (completion);
1138 }
1139
1140 static void
1141 gtk_entry_completion_insert_action (GtkEntryCompletion *completion,
1142                                     gint                index,
1143                                     const gchar        *string,
1144                                     gboolean            markup)
1145 {
1146   GtkTreeIter iter;
1147
1148   gtk_list_store_insert (completion->priv->actions, &iter, index);
1149   gtk_list_store_set (completion->priv->actions, &iter,
1150                       0, string,
1151                       1, markup,
1152                       -1);
1153
1154   if (!completion->priv->action_view->parent)
1155     {
1156       GtkTreePath *path = gtk_tree_path_new_from_indices (0, -1);
1157
1158       gtk_tree_view_set_cursor (GTK_TREE_VIEW (completion->priv->action_view),
1159                                 path, NULL, FALSE);
1160       gtk_tree_path_free (path);
1161
1162       gtk_box_pack_start (GTK_BOX (completion->priv->vbox),
1163                           completion->priv->action_view, FALSE, FALSE, 0);
1164       gtk_widget_show (completion->priv->action_view);
1165     }
1166 }
1167
1168 /**
1169  * gtk_entry_completion_insert_action_text:
1170  * @completion: A #GtkEntryCompletion.
1171  * @index_: The index of the item to insert.
1172  * @text: Text of the item to insert.
1173  *
1174  * Inserts an action in @completion's action item list at position @index_
1175  * with text @text. If you want the action item to have markup, use
1176  * gtk_entry_completion_insert_action_markup().
1177  *
1178  * Since: 2.4
1179  */
1180 void
1181 gtk_entry_completion_insert_action_text (GtkEntryCompletion *completion,
1182                                          gint                index_,
1183                                          const gchar        *text)
1184 {
1185   g_return_if_fail (GTK_IS_ENTRY_COMPLETION (completion));
1186   g_return_if_fail (text != NULL);
1187
1188   gtk_entry_completion_insert_action (completion, index_, text, FALSE);
1189 }
1190
1191 /**
1192  * gtk_entry_completion_insert_action_markup:
1193  * @completion: A #GtkEntryCompletion.
1194  * @index_: The index of the item to insert.
1195  * @markup: Markup of the item to insert.
1196  *
1197  * Inserts an action in @completion's action item list at position @index_
1198  * with markup @markup.
1199  *
1200  * Since: 2.4
1201  */
1202 void
1203 gtk_entry_completion_insert_action_markup (GtkEntryCompletion *completion,
1204                                            gint                index_,
1205                                            const gchar        *markup)
1206 {
1207   g_return_if_fail (GTK_IS_ENTRY_COMPLETION (completion));
1208   g_return_if_fail (markup != NULL);
1209
1210   gtk_entry_completion_insert_action (completion, index_, markup, TRUE);
1211 }
1212
1213 /**
1214  * gtk_entry_completion_delete_action:
1215  * @completion: A #GtkEntryCompletion.
1216  * @index_: The index of the item to Delete.
1217  *
1218  * Deletes the action at @index_ from @completion's action list.
1219  *
1220  * Since: 2.4
1221  */
1222 void
1223 gtk_entry_completion_delete_action (GtkEntryCompletion *completion,
1224                                     gint                index_)
1225 {
1226   GtkTreeIter iter;
1227
1228   g_return_if_fail (GTK_IS_ENTRY_COMPLETION (completion));
1229   g_return_if_fail (index_ >= 0);
1230
1231   gtk_tree_model_iter_nth_child (GTK_TREE_MODEL (completion->priv->actions),
1232                                  &iter, NULL, index_);
1233   gtk_list_store_remove (completion->priv->actions, &iter);
1234 }
1235
1236 /**
1237  * gtk_entry_completion_set_text_column:
1238  * @completion: A #GtkEntryCompletion.
1239  * @column: The column in the model of @completion to get strings from.
1240  *
1241  * Convenience function for setting up the most used case of this code: a
1242  * completion list with just strings. This function will set up @completion
1243  * to have a list displaying all (and just) strings in the completion list,
1244  * and to get those strings from @column in the model of @completion.
1245  *
1246  * This functions creates and adds a #GtkCellRendererText for the selected
1247  * column. If you need to set the text column, but don't want the cell
1248  * renderer, use g_object_set() to set the ::text_column property directly.
1249  *
1250  * Since: 2.4
1251  */
1252 void
1253 gtk_entry_completion_set_text_column (GtkEntryCompletion *completion,
1254                                       gint                column)
1255 {
1256   GtkCellRenderer *cell;
1257
1258   g_return_if_fail (GTK_IS_ENTRY_COMPLETION (completion));
1259   g_return_if_fail (column >= 0);
1260
1261   completion->priv->text_column = column;
1262
1263   cell = gtk_cell_renderer_text_new ();
1264   gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (completion),
1265                               cell, TRUE);
1266   gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (completion),
1267                                  cell,
1268                                  "text", column);
1269
1270   g_object_notify (G_OBJECT (completion), "text-column");
1271 }
1272
1273 /**
1274  * gtk_entry_completion_get_text_column:
1275  * @completion: a #GtkEntryCompletion
1276  *
1277  * Returns the column in the model of @completion to get strings from.
1278  *
1279  * Return value: the column containing the strings
1280  *
1281  * Since: 2.6
1282  **/
1283 gint
1284 gtk_entry_completion_get_text_column (GtkEntryCompletion *completion)
1285 {
1286   g_return_val_if_fail (GTK_IS_ENTRY_COMPLETION (completion), -1);
1287
1288   return completion->priv->text_column;
1289 }
1290
1291 /* private */
1292
1293 static gboolean
1294 gtk_entry_completion_list_enter_notify (GtkWidget        *widget,
1295                                         GdkEventCrossing *event,
1296                                         gpointer          data)
1297 {
1298   GtkEntryCompletion *completion = GTK_ENTRY_COMPLETION (data);
1299
1300   return completion->priv->ignore_enter;
1301 }
1302
1303 static gboolean
1304 gtk_entry_completion_list_motion_notify (GtkWidget      *widget,
1305                                          GdkEventMotion *event,
1306                                          gpointer        data)
1307 {
1308   GtkEntryCompletion *completion = GTK_ENTRY_COMPLETION (data);
1309
1310   completion->priv->ignore_enter = FALSE;
1311
1312   return FALSE;
1313 }
1314
1315
1316 /* some nasty size requisition */
1317 gboolean
1318 _gtk_entry_completion_resize_popup (GtkEntryCompletion *completion)
1319 {
1320   gint x, y;
1321   gint matches, items, height, x_border, y_border;
1322   GdkScreen *screen;
1323   gint monitor_num;
1324   gint vertical_separator;
1325   GdkRectangle monitor;
1326   GtkRequisition popup_req;
1327   GtkRequisition entry_req;
1328   GtkTreePath *path;
1329   gboolean above;
1330   gint width;
1331
1332   if (!completion->priv->entry->window)
1333     return FALSE;
1334
1335   gdk_window_get_origin (completion->priv->entry->window, &x, &y);
1336   _gtk_entry_get_borders (GTK_ENTRY (completion->priv->entry), &x_border, &y_border);
1337
1338   matches = gtk_tree_model_iter_n_children (GTK_TREE_MODEL (completion->priv->filter_model), NULL);
1339
1340   items = MIN (matches, 15);
1341
1342   gtk_tree_view_column_cell_get_size (completion->priv->column, NULL,
1343                                       NULL, NULL, NULL, &height);
1344
1345   gtk_widget_style_get (GTK_WIDGET (completion->priv->tree_view),
1346                         "vertical-separator", &vertical_separator,
1347                         NULL);
1348
1349   height += vertical_separator;
1350
1351   if (items <= 0)
1352     gtk_widget_hide (completion->priv->scrolled_window);
1353   else
1354     gtk_widget_show (completion->priv->scrolled_window);
1355
1356   screen = gtk_widget_get_screen (GTK_WIDGET (completion->priv->entry));
1357   monitor_num = gdk_screen_get_monitor_at_window (screen,
1358                                                   GTK_WIDGET (completion->priv->entry)->window);
1359   gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
1360
1361   if (completion->priv->popup_set_width)
1362     width = MIN (completion->priv->entry->allocation.width, monitor.width) - 2 * x_border;
1363   else
1364     width = -1;
1365
1366   gtk_tree_view_columns_autosize (GTK_TREE_VIEW (completion->priv->tree_view));
1367   gtk_widget_set_size_request (completion->priv->tree_view, width, items * height);
1368
1369   /* default on no match */
1370   completion->priv->current_selected = -1;
1371
1372   items = gtk_tree_model_iter_n_children (GTK_TREE_MODEL (completion->priv->actions), NULL);
1373
1374   if (items)
1375     {
1376       gtk_widget_show (completion->priv->action_view);
1377       gtk_widget_set_size_request (completion->priv->action_view, width, -1);
1378     }
1379   else
1380     gtk_widget_hide (completion->priv->action_view);
1381
1382   gtk_widget_size_request (completion->priv->popup_window, &popup_req);
1383   gtk_widget_size_request (completion->priv->entry, &entry_req);
1384
1385   if (x < monitor.x)
1386     x = monitor.x;
1387   else if (x + popup_req.width > monitor.x + monitor.width)
1388     x = monitor.x + monitor.width - popup_req.width;
1389
1390   if (y + entry_req.height + popup_req.height <= monitor.y + monitor.height)
1391     {
1392       y += entry_req.height;
1393       above = FALSE;
1394     }
1395   else
1396     {
1397       y -= popup_req.height;
1398       above = TRUE;
1399     }
1400
1401   if (matches > 0)
1402     {
1403       path = gtk_tree_path_new_from_indices (above ? matches - 1 : 0, -1);
1404       gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW (completion->priv->tree_view), path,
1405                                     NULL, FALSE, 0.0, 0.0);
1406       gtk_tree_path_free (path);
1407     }
1408
1409   gtk_window_move (GTK_WINDOW (completion->priv->popup_window), x, y);
1410
1411   return above;
1412 }
1413
1414 void
1415 _gtk_entry_completion_popup (GtkEntryCompletion *completion)
1416 {
1417   GtkTreeViewColumn *column;
1418   GList *renderers;
1419
1420   if (GTK_WIDGET_MAPPED (completion->priv->popup_window))
1421     return;
1422
1423   if (!GTK_WIDGET_MAPPED (completion->priv->entry))
1424     return;
1425
1426   completion->priv->ignore_enter = TRUE;
1427
1428   column = gtk_tree_view_get_column (GTK_TREE_VIEW (completion->priv->action_view), 0);
1429   renderers = gtk_tree_view_column_get_cell_renderers (column);
1430   gtk_widget_ensure_style (completion->priv->tree_view);
1431   g_object_set (GTK_CELL_RENDERER (renderers->data), "cell-background-gdk",
1432                 &completion->priv->tree_view->style->bg[GTK_STATE_NORMAL],
1433                 NULL);
1434   g_list_free (renderers);
1435
1436   gtk_widget_show_all (completion->priv->vbox);
1437
1438   _gtk_entry_completion_resize_popup (completion);
1439
1440   gtk_widget_show (completion->priv->popup_window);
1441
1442   gtk_grab_add (completion->priv->popup_window);
1443   gdk_pointer_grab (completion->priv->popup_window->window, TRUE,
1444                     GDK_BUTTON_PRESS_MASK |
1445                     GDK_BUTTON_RELEASE_MASK |
1446                     GDK_POINTER_MOTION_MASK,
1447                     NULL, NULL, GDK_CURRENT_TIME);
1448 }
1449
1450 void
1451 _gtk_entry_completion_popdown (GtkEntryCompletion *completion)
1452 {
1453   if (!GTK_WIDGET_MAPPED (completion->priv->popup_window))
1454     return;
1455
1456   completion->priv->ignore_enter = FALSE;
1457
1458   gdk_pointer_ungrab (GDK_CURRENT_TIME);
1459   gtk_grab_remove (completion->priv->popup_window);
1460
1461   gtk_widget_hide (completion->priv->popup_window);
1462 }
1463
1464 static gboolean
1465 gtk_entry_completion_match_selected (GtkEntryCompletion *completion,
1466                                      GtkTreeModel       *model,
1467                                      GtkTreeIter        *iter)
1468 {
1469   gchar *str = NULL;
1470
1471   gtk_tree_model_get (model, iter, completion->priv->text_column, &str, -1);
1472   gtk_entry_set_text (GTK_ENTRY (completion->priv->entry), str);
1473
1474   /* move cursor to the end */
1475   gtk_editable_set_position (GTK_EDITABLE (completion->priv->entry), -1);
1476
1477   g_free (str);
1478
1479   return TRUE;
1480 }
1481
1482
1483 static gchar *
1484 gtk_entry_completion_compute_prefix (GtkEntryCompletion *completion)
1485 {
1486   GtkTreeIter iter;
1487   gchar *prefix = NULL;
1488   gboolean valid;
1489   const gchar *key;
1490
1491   if (completion->priv->text_column < 0)
1492     return NULL;
1493
1494   key = gtk_entry_get_text (GTK_ENTRY (completion->priv->entry));
1495
1496   valid = gtk_tree_model_get_iter_first (GTK_TREE_MODEL (completion->priv->filter_model),
1497                                          &iter);
1498
1499   while (valid)
1500     {
1501       gchar *text;
1502
1503       gtk_tree_model_get (GTK_TREE_MODEL (completion->priv->filter_model),
1504                           &iter, completion->priv->text_column, &text,
1505                           -1);
1506
1507       if (g_str_has_prefix (text, key))
1508         {
1509           if (!prefix)
1510             prefix = g_strdup (text);
1511           else
1512             {
1513               gchar *p = prefix;
1514               const gchar *q = text;
1515
1516               while (*p && *p == *q)
1517                 {
1518                   p++;
1519                   q++;
1520                 }
1521
1522               *p = '\0';
1523             }
1524         }
1525
1526       g_free (text);
1527       valid = gtk_tree_model_iter_next (GTK_TREE_MODEL (completion->priv->filter_model),
1528                                         &iter);
1529     }
1530
1531   return prefix;
1532 }
1533
1534
1535 static gboolean
1536 gtk_entry_completion_real_insert_prefix (GtkEntryCompletion *completion,
1537                                          const gchar        *prefix)
1538 {
1539   if (prefix)
1540     {
1541       gint key_len;
1542       gint prefix_len;
1543       const gchar *key;
1544
1545       prefix_len = g_utf8_strlen (prefix, -1);
1546
1547       key = gtk_entry_get_text (GTK_ENTRY (completion->priv->entry));
1548       key_len = g_utf8_strlen (key, -1);
1549
1550       if (prefix_len > key_len)
1551         {
1552           gint pos = prefix_len;
1553
1554           gtk_editable_insert_text (GTK_EDITABLE (completion->priv->entry),
1555                                     prefix + key_len, -1, &pos);
1556           gtk_editable_select_region (GTK_EDITABLE (completion->priv->entry),
1557                                       key_len, prefix_len);
1558
1559           completion->priv->has_completion = TRUE;
1560         }
1561     }
1562
1563   return TRUE;
1564 }
1565
1566 /**
1567  * gtk_entry_completion_insert_prefix:
1568  * @completion: a #GtkEntryCompletion
1569  *
1570  * Requests a prefix insertion.
1571  *
1572  * Since: 2.6
1573  **/
1574 void
1575 gtk_entry_completion_insert_prefix (GtkEntryCompletion *completion)
1576 {
1577   gboolean done;
1578   gchar *prefix;
1579
1580   g_signal_handler_block (completion->priv->entry,
1581                           completion->priv->insert_text_id);
1582   prefix = gtk_entry_completion_compute_prefix (completion);
1583   if (prefix)
1584     {
1585       g_signal_emit (completion, entry_completion_signals[INSERT_PREFIX],
1586                      0, prefix, &done);
1587       g_free (prefix);
1588     }
1589   g_signal_handler_unblock (completion->priv->entry,
1590                             completion->priv->insert_text_id);
1591 }
1592
1593 /**
1594  * gtk_entry_completion_set_inline_completion:
1595  * @completion: a #GtkEntryCompletion
1596  * @inline_completion: %TRUE to do inline completion
1597  *
1598  * Sets whether the common prefix of the possible completions should
1599  * be automatically inserted in the entry.
1600  *
1601  * Since: 2.6
1602  **/
1603 void
1604 gtk_entry_completion_set_inline_completion (GtkEntryCompletion *completion,
1605                                             gboolean            inline_completion)
1606 {
1607   g_return_if_fail (GTK_IS_ENTRY_COMPLETION (completion));
1608
1609   inline_completion = inline_completion != FALSE;
1610
1611   if (completion->priv->inline_completion != inline_completion)
1612     {
1613       completion->priv->inline_completion = inline_completion;
1614
1615       g_object_notify (G_OBJECT (completion), "inline-completion");
1616     }
1617 }
1618
1619
1620 /**
1621  * gtk_entry_completion_get_inline_completion:
1622  * @completion: a #GtkEntryCompletion
1623  *
1624  * Returns whether the common prefix of the possible completions should
1625  * be automatically inserted in the entry.
1626  *
1627  * Return value: %TRUE if inline completion is turned on
1628  *
1629  * Since: 2.6
1630  **/
1631 gboolean
1632 gtk_entry_completion_get_inline_completion (GtkEntryCompletion *completion)
1633 {
1634   g_return_val_if_fail (GTK_IS_ENTRY_COMPLETION (completion), FALSE);
1635
1636   return completion->priv->inline_completion;
1637 }
1638
1639 /**
1640  * gtk_entry_completion_set_popup_completion:
1641  * @completion: a #GtkEntryCompletion
1642  * @popup_completion: %TRUE to do popup completion
1643  *
1644  * Sets whether the completions should be presented in a popup window.
1645  *
1646  * Since: 2.6
1647  **/
1648 void
1649 gtk_entry_completion_set_popup_completion (GtkEntryCompletion *completion,
1650                                            gboolean            popup_completion)
1651 {
1652   g_return_if_fail (GTK_IS_ENTRY_COMPLETION (completion));
1653
1654   popup_completion = popup_completion != FALSE;
1655
1656   if (completion->priv->popup_completion != popup_completion)
1657     {
1658       completion->priv->popup_completion = popup_completion;
1659
1660       g_object_notify (G_OBJECT (completion), "popup-completion");
1661     }
1662 }
1663
1664
1665 /**
1666  * gtk_entry_completion_get_popup_completion:
1667  * @completion: a #GtkEntryCompletion
1668  *
1669  * Returns whether the completions should be presented in a popup window.
1670  *
1671  * Return value: %TRUE if popup completion is turned on
1672  *
1673  * Since: 2.6
1674  **/
1675 gboolean
1676 gtk_entry_completion_get_popup_completion (GtkEntryCompletion *completion)
1677 {
1678   g_return_val_if_fail (GTK_IS_ENTRY_COMPLETION (completion), TRUE);
1679
1680   return completion->priv->popup_completion;
1681 }
1682
1683 /**
1684  * gtk_entry_completion_set_popup_set_width:
1685  * @completion: a #GtkEntryCompletion
1686  * @popup_set_width: %TRUE to make the width of the popup the same as the entry
1687  *
1688  * Sets whether the completion popup window will be resized to be the same
1689  * width as the entry.
1690  *
1691  * Since: 2.8
1692  */
1693 void
1694 gtk_entry_completion_set_popup_set_width (GtkEntryCompletion *completion,
1695                                           gboolean            popup_set_width)
1696 {
1697   g_return_if_fail (GTK_IS_ENTRY_COMPLETION (completion));
1698
1699   popup_set_width = popup_set_width != FALSE;
1700
1701   if (completion->priv->popup_set_width != popup_set_width)
1702     {
1703       completion->priv->popup_set_width = popup_set_width;
1704
1705       g_object_notify (G_OBJECT (completion), "popup-set-width");
1706     }
1707 }
1708
1709 /**
1710  * gtk_entry_completion_get_popup_set_width:
1711  * @completion: a #GtkEntryCompletion
1712  *
1713  * Returns whether the  completion popup window will be resized to the
1714  * width of the entry.
1715  *
1716  * Return value: %TRUE if the popup window will be resized to the width of
1717  *   the entry
1718  *
1719  * Since: 2.8
1720  **/
1721 gboolean
1722 gtk_entry_completion_get_popup_set_width (GtkEntryCompletion *completion)
1723 {
1724   g_return_val_if_fail (GTK_IS_ENTRY_COMPLETION (completion), TRUE);
1725
1726   return completion->priv->popup_set_width;
1727 }
1728
1729
1730 /**
1731  * gtk_entry_completion_set_popup_single_match:
1732  * @completion: a #GtkEntryCompletion
1733  * @popup_single_match: %TRUE if the popup should appear even for a single
1734  *   match
1735  *
1736  * Sets whether the completion popup window will appear even if there is
1737  * only a single match. You may want to set this to %FALSE if you
1738  * are using <link linkend="GtkEntryCompletion--inline-completion">inline
1739  * completion</link>.
1740  *
1741  * Since: 2.8
1742  */
1743 void
1744 gtk_entry_completion_set_popup_single_match (GtkEntryCompletion *completion,
1745                                              gboolean            popup_single_match)
1746 {
1747   g_return_if_fail (GTK_IS_ENTRY_COMPLETION (completion));
1748
1749   popup_single_match = popup_single_match != FALSE;
1750
1751   if (completion->priv->popup_single_match != popup_single_match)
1752     {
1753       completion->priv->popup_single_match = popup_single_match;
1754
1755       g_object_notify (G_OBJECT (completion), "popup-single-match");
1756     }
1757 }
1758
1759 /**
1760  * gtk_entry_completion_get_popup_single_match:
1761  * @completion: a #GtkEntryCompletion
1762  *
1763  * Returns whether the completion popup window will appear even if there is
1764  * only a single match.
1765  *
1766  * Return value: %TRUE if the popup window will appear regardless of the
1767  *    number of matches.
1768  *
1769  * Since: 2.8
1770  **/
1771 gboolean
1772 gtk_entry_completion_get_popup_single_match (GtkEntryCompletion *completion)
1773 {
1774   g_return_val_if_fail (GTK_IS_ENTRY_COMPLETION (completion), TRUE);
1775
1776   return completion->priv->popup_single_match;
1777 }
1778
1779
1780 #define __GTK_ENTRY_COMPLETION_C__
1781 #include "gtkaliasdef.c"