libempathy-gtk/empathy-live-search.c

   1 /*
   2  * Copyright (C) 2010 Collabora Ltd.
   3  * Copyright (C) 2007-2010 Nokia Corporation.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  18  *
  19  * Authors: Felix Kaser <felix.kaser@collabora.co.uk>
  20  *          Xavier Claessens <xavier.claessens@collabora.co.uk>
  21  *          Claudio Saavedra <csaavedra@igalia.com>
  22  */
  23
  24 #include <config.h>
  25 #include <string.h>
  26
  27 #include <gtk/gtk.h>
  28 #include <gdk/gdkkeysyms.h>
  29
  30 #include <libempathy/empathy-utils.h>
  31
  32 #include "empathy-live-search.h"
  33 #include "empathy-gtk-marshal.h"
  34
  35 G_DEFINE_TYPE (EmpathyLiveSearch, empathy_live_search, GTK_TYPE_HBOX)
  36
  37 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyLiveSearch)
  38
  39 typedef struct
  40 {
  41   GtkWidget *search_entry;
  42   GtkWidget *hook_widget;
  43
  44   GPtrArray *stripped_words;
  45 } EmpathyLiveSearchPriv;
  46
  47 enum
  48 {
  49   PROP_0,
  50   PROP_HOOK_WIDGET,
  51   PROP_TEXT
  52 };
  53
  54 enum
  55 {
  56   ACTIVATE,
  57   KEYNAV,
  58   LAST_SIGNAL
  59 };
  60
  61 static guint signals[LAST_SIGNAL];
  62
  63 static void live_search_hook_widget_destroy_cb (GtkWidget *object,
  64     gpointer user_data);
  65
  66 /**
  67  * stripped_char:
  68  *
  69  * Returns a stripped version of @ch, removing any case, accentuation
  70  * mark, or any special mark on it.
  71  **/
  72 static gunichar
  73 stripped_char (gunichar ch)
  74 {
  75   gunichar retval = 0;
  76   GUnicodeType utype;
  77   gunichar *decomp;
  78   gsize dlen;
  79
  80   utype = g_unichar_type (ch);
  81
  82   switch (utype)
  83     {
  84     case G_UNICODE_CONTROL:
  85     case G_UNICODE_FORMAT:
  86     case G_UNICODE_UNASSIGNED:
  87     case G_UNICODE_NON_SPACING_MARK:
  88     case G_UNICODE_COMBINING_MARK:
  89     case G_UNICODE_ENCLOSING_MARK:
  90       /* Ignore those */
  91       break;
  92     case G_UNICODE_PRIVATE_USE:
  93     case G_UNICODE_SURROGATE:
  94     case G_UNICODE_LOWERCASE_LETTER:
  95     case G_UNICODE_MODIFIER_LETTER:
  96     case G_UNICODE_OTHER_LETTER:
  97     case G_UNICODE_TITLECASE_LETTER:
  98     case G_UNICODE_UPPERCASE_LETTER:
  99     case G_UNICODE_DECIMAL_NUMBER:
 100     case G_UNICODE_LETTER_NUMBER:
 101     case G_UNICODE_OTHER_NUMBER:
 102     case G_UNICODE_CONNECT_PUNCTUATION:
 103     case G_UNICODE_DASH_PUNCTUATION:
 104     case G_UNICODE_CLOSE_PUNCTUATION:
 105     case G_UNICODE_FINAL_PUNCTUATION:
 106     case G_UNICODE_INITIAL_PUNCTUATION:
 107     case G_UNICODE_OTHER_PUNCTUATION:
 108     case G_UNICODE_OPEN_PUNCTUATION:
 109     case G_UNICODE_CURRENCY_SYMBOL:
 110     case G_UNICODE_MODIFIER_SYMBOL:
 111     case G_UNICODE_MATH_SYMBOL:
 112     case G_UNICODE_OTHER_SYMBOL:
 113     case G_UNICODE_LINE_SEPARATOR:
 114     case G_UNICODE_PARAGRAPH_SEPARATOR:
 115     case G_UNICODE_SPACE_SEPARATOR:
 116     default:
 117       ch = g_unichar_tolower (ch);
 118       decomp = g_unicode_canonical_decomposition (ch, &dlen);
 119       if (decomp != NULL)
 120         {
 121           retval = decomp[0];
 122           g_free (decomp);
 123         }
 124     }
 125
 126   return retval;
 127 }
 128
 129 static void
 130 append_word (GPtrArray **word_array,
 131     GString **word)
 132 {
 133   if (*word != NULL)
 134     {
 135       if (*word_array == NULL)
 136         *word_array = g_ptr_array_new_with_free_func (g_free);
 137       g_ptr_array_add (*word_array, g_string_free (*word, FALSE));
 138       *word = NULL;
 139     }
 140 }
 141
 142 GPtrArray *
 143 empathy_live_search_strip_utf8_string (const gchar *string)
 144 {
 145   GPtrArray *word_array = NULL;
 146   GString *word = NULL;
 147   const gchar *p;
 148
 149   if (EMP_STR_EMPTY (string))
 150     return NULL;
 151
 152   for (p = string; *p != '\0'; p = g_utf8_next_char (p))
 153     {
 154       gunichar sc;
 155
 156       /* Make the char lower-case, remove its accentuation marks, and ignore it
 157        * if it is just unicode marks */
 158       sc = stripped_char (g_utf8_get_char (p));
 159       if (sc == 0)
 160         continue;
 161
 162       /* If it is not alpha-num, it is separator between words */
 163       if (!g_unichar_isalnum (sc))
 164         {
 165           append_word (&word_array, &word);
 166           continue;
 167         }
 168
 169       /* It is alpha-num, append this char to current word, or start new word */
 170       if (word == NULL)
 171         word = g_string_new (NULL);
 172       g_string_append_unichar (word, sc);
 173     }
 174
 175   append_word (&word_array, &word);
 176
 177   return word_array;
 178 }
 179
 180 static gboolean
 181 live_search_match_prefix (const gchar *string,
 182     const gchar *prefix)
 183 {
 184   const gchar *p;
 185   const gchar *prefix_p;
 186   gboolean next_word = FALSE;
 187
 188   if (prefix == NULL || prefix[0] == 0)
 189     return TRUE;
 190
 191   if (EMP_STR_EMPTY (string))
 192     return FALSE;
 193
 194   prefix_p = prefix;
 195   for (p = string; *p != '\0'; p = g_utf8_next_char (p))
 196     {
 197       gunichar sc;
 198
 199       /* Make the char lower-case, remove its accentuation marks, and ignore it
 200        * if it is just unicode marks */
 201       sc = stripped_char (g_utf8_get_char (p));
 202       if (sc == 0)
 203         continue;
 204
 205       /* If we want to go to next word, ignore alpha-num chars */
 206       if (next_word && g_unichar_isalnum (sc))
 207         continue;
 208       next_word = FALSE;
 209
 210       /* Ignore word separators */
 211       if (!g_unichar_isalnum (sc))
 212         continue;
 213
 214       /* If this char does not match prefix_p, go to next word and start again
 215        * from the beginning of prefix */
 216       if (sc != g_utf8_get_char (prefix_p))
 217         {
 218           next_word = TRUE;
 219           prefix_p = prefix;
 220           continue;
 221         }
 222
 223       /* prefix_p match, verify to next char. If this was the last of prefix,
 224        * it means it completely machted and we are done. */
 225       prefix_p = g_utf8_next_char (prefix_p);
 226       if (*prefix_p == '\0')
 227         return TRUE;
 228     }
 229
 230   return FALSE;
 231 }
 232
 233 gboolean
 234 empathy_live_search_match_words (const gchar *string,
 235     GPtrArray *words)
 236 {
 237   guint i;
 238
 239   if (words == NULL)
 240     return TRUE;
 241
 242   for (i = 0; i < words->len; i++)
 243     if (!live_search_match_prefix (string, g_ptr_array_index (words, i)))
 244       return FALSE;
 245
 246   return TRUE;
 247 }
 248
 249 static gboolean
 250 fire_key_navigation_sig (EmpathyLiveSearch *self,
 251     GdkEventKey *event)
 252 {
 253   gboolean ret;
 254
 255   g_signal_emit (self, signals[KEYNAV], 0, event, &ret);
 256   return ret;
 257 }
 258
 259 static gboolean
 260 live_search_entry_key_pressed_cb (GtkEntry *entry,
 261     GdkEventKey *event,
 262     gpointer user_data)
 263 {
 264   EmpathyLiveSearch *self = EMPATHY_LIVE_SEARCH (user_data);
 265
 266   /* if esc key pressed, hide the search */
 267   if (event->keyval == GDK_KEY_Escape)
 268     {
 269       gtk_widget_hide (GTK_WIDGET (self));
 270       return TRUE;
 271     }
 272
 273   /* emit key navigation signal, so other widgets can respond to it properly */
 274   if (event->keyval == GDK_KEY_Up || event->keyval == GDK_KEY_Down
 275       || event->keyval == GDK_KEY_Page_Up || event->keyval == GDK_KEY_Page_Down)
 276      {
 277        return fire_key_navigation_sig (self, event);
 278      }
 279
 280   if (event->keyval == GDK_KEY_Home || event->keyval == GDK_KEY_End ||
 281       event->keyval == GDK_KEY_space)
 282     {
 283       /* If the live search is visible, the entry should catch the Home/End
 284        * and space events */
 285       if (!gtk_widget_get_visible (GTK_WIDGET (self)))
 286         {
 287           return fire_key_navigation_sig (self, event);
 288         }
 289     }
 290
 291   return FALSE;
 292 }
 293
 294 static void
 295 live_search_text_changed (GtkEntry *entry,
 296     gpointer user_data)
 297 {
 298   EmpathyLiveSearch *self = EMPATHY_LIVE_SEARCH (user_data);
 299   EmpathyLiveSearchPriv *priv = GET_PRIV (self);
 300   const gchar *text;
 301
 302   text = gtk_entry_get_text (entry);
 303
 304   if (EMP_STR_EMPTY (text))
 305     gtk_widget_hide (GTK_WIDGET (self));
 306   else
 307     gtk_widget_show (GTK_WIDGET (self));
 308
 309   if (priv->stripped_words != NULL)
 310     g_ptr_array_unref (priv->stripped_words);
 311
 312   priv->stripped_words = empathy_live_search_strip_utf8_string (text);
 313
 314   g_object_notify (G_OBJECT (self), "text");
 315 }
 316
 317 static void
 318 live_search_close_pressed (GtkEntry *entry,
 319     GtkEntryIconPosition icon_pos,
 320     GdkEvent *event,
 321     gpointer user_data)
 322 {
 323   EmpathyLiveSearch *self = EMPATHY_LIVE_SEARCH (user_data);
 324
 325   gtk_widget_hide (GTK_WIDGET (self));
 326 }
 327
 328 static gboolean
 329 live_search_key_press_event_cb (GtkWidget *widget,
 330     GdkEventKey *event,
 331     gpointer user_data)
 332 {
 333   EmpathyLiveSearch *self = EMPATHY_LIVE_SEARCH (user_data);
 334   EmpathyLiveSearchPriv *priv = GET_PRIV (self);
 335   GdkEvent *new_event;
 336   gboolean ret;
 337
 338   /* dont forward this event to the entry, else the event is consumed by the
 339    * entry and does not close the window */
 340   if (!gtk_widget_get_visible (GTK_WIDGET (self)) &&
 341       event->keyval == GDK_KEY_Escape)
 342     return FALSE;
 343
 344   /* do not show the search if CTRL and/or ALT are pressed with a key
 345    * this is needed, because otherwise the CTRL + F accel would not work,
 346    * because the entry consumes it */
 347   if (event->state & (GDK_MOD1_MASK | GDK_CONTROL_MASK) ||
 348       event->keyval == GDK_KEY_Control_L ||
 349       event->keyval == GDK_KEY_Control_R)
 350     return FALSE;
 351
 352   /* dont forward the up/down and Page Up/Down arrow keys to the entry,
 353    * they are needed for navigation in the treeview and are not needed in
 354    * the search entry */
 355    if (event->keyval == GDK_KEY_Up || event->keyval == GDK_KEY_Down ||
 356        event->keyval == GDK_KEY_Page_Up || event->keyval == GDK_KEY_Page_Down)
 357      return FALSE;
 358
 359    if (event->keyval == GDK_KEY_Home || event->keyval == GDK_KEY_End ||
 360        event->keyval == GDK_KEY_space)
 361      {
 362        /* Home/End and space keys have to be forwarded to the entry only if
 363         * the live search is visible (to move the cursor inside the entry). */
 364        if (!gtk_widget_get_visible (GTK_WIDGET (self)))
 365          return FALSE;
 366      }
 367
 368   /* realize the widget if it is not realized yet */
 369   gtk_widget_realize (priv->search_entry);
 370   if (!gtk_widget_has_focus (priv->search_entry))
 371     {
 372       gtk_widget_grab_focus (priv->search_entry);
 373       gtk_editable_set_position (GTK_EDITABLE (priv->search_entry), -1);
 374     }
 375
 376   /* forward the event to the search entry */
 377   new_event = gdk_event_copy ((GdkEvent *) event);
 378   ret = gtk_widget_event (priv->search_entry, new_event);
 379   gdk_event_free (new_event);
 380
 381   return ret;
 382 }
 383
 384 static void
 385 live_search_entry_activate_cb (GtkEntry *entry,
 386     EmpathyLiveSearch *self)
 387 {
 388   g_signal_emit (self, signals[ACTIVATE], 0);
 389 }
 390
 391 static void
 392 live_search_release_hook_widget (EmpathyLiveSearch *self)
 393 {
 394   EmpathyLiveSearchPriv *priv = GET_PRIV (self);
 395
 396   /* remove old handlers if old source was not null */
 397   if (priv->hook_widget != NULL)
 398     {
 399       g_signal_handlers_disconnect_by_func (priv->hook_widget,
 400           live_search_key_press_event_cb, self);
 401       g_signal_handlers_disconnect_by_func (priv->hook_widget,
 402           live_search_hook_widget_destroy_cb, self);
 403       g_object_unref (priv->hook_widget);
 404       priv->hook_widget = NULL;
 405     }
 406 }
 407
 408 static void
 409 live_search_hook_widget_destroy_cb (GtkWidget *object,
 410     gpointer user_data)
 411 {
 412   EmpathyLiveSearch *self = EMPATHY_LIVE_SEARCH (user_data);
 413
 414   /* unref the hook widget and hide search */
 415   gtk_widget_hide (GTK_WIDGET (self));
 416   live_search_release_hook_widget (self);
 417 }
 418
 419 static void
 420 live_search_dispose (GObject *obj)
 421 {
 422   EmpathyLiveSearch *self = EMPATHY_LIVE_SEARCH (obj);
 423
 424   live_search_release_hook_widget (self);
 425
 426   if (G_OBJECT_CLASS (empathy_live_search_parent_class)->dispose != NULL)
 427     G_OBJECT_CLASS (empathy_live_search_parent_class)->dispose (obj);
 428 }
 429
 430 static void
 431 live_search_finalize (GObject *obj)
 432 {
 433   EmpathyLiveSearch *self = EMPATHY_LIVE_SEARCH (obj);
 434   EmpathyLiveSearchPriv *priv = GET_PRIV (self);
 435
 436   if (priv->stripped_words != NULL)
 437     g_ptr_array_unref (priv->stripped_words);
 438
 439   if (G_OBJECT_CLASS (empathy_live_search_parent_class)->finalize != NULL)
 440     G_OBJECT_CLASS (empathy_live_search_parent_class)->finalize (obj);
 441 }
 442
 443 static void
 444 live_search_get_property (GObject *object,
 445     guint param_id,
 446     GValue *value,
 447     GParamSpec *pspec)
 448 {
 449   EmpathyLiveSearch *self = EMPATHY_LIVE_SEARCH (object);
 450
 451   switch (param_id)
 452     {
 453     case PROP_HOOK_WIDGET:
 454       g_value_set_object (value, empathy_live_search_get_hook_widget (self));
 455       break;
 456     case PROP_TEXT:
 457       g_value_set_string (value, empathy_live_search_get_text (self));
 458       break;
 459     default:
 460       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 461       break;
 462     }
 463 }
 464
 465 static void
 466 live_search_set_property (GObject *object,
 467     guint param_id,
 468     const GValue *value,
 469     GParamSpec *pspec)
 470 {
 471   EmpathyLiveSearch *self = EMPATHY_LIVE_SEARCH (object);
 472
 473   switch (param_id) {
 474   case PROP_HOOK_WIDGET:
 475     empathy_live_search_set_hook_widget (self, g_value_get_object (value));
 476     break;
 477   case PROP_TEXT:
 478     empathy_live_search_set_text (self, g_value_get_string (value));
 479     break;
 480   default:
 481     G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 482     break;
 483   };
 484 }
 485
 486 static void
 487 live_search_unmap (GtkWidget *widget)
 488 {
 489   EmpathyLiveSearch *self = EMPATHY_LIVE_SEARCH (widget);
 490   EmpathyLiveSearchPriv *priv = GET_PRIV (self);
 491
 492   GTK_WIDGET_CLASS (empathy_live_search_parent_class)->unmap (widget);
 493
 494   /* unmap can happen if a parent gets hidden, in that case we want to hide
 495    * the live search as well, so when it gets mapped again, the live search
 496    * won't be shown. */
 497   gtk_widget_hide (widget);
 498
 499   gtk_entry_set_text (GTK_ENTRY (priv->search_entry), "");
 500   gtk_widget_grab_focus (priv->hook_widget);
 501 }
 502
 503 static void
 504 live_search_show (GtkWidget *widget)
 505 {
 506   EmpathyLiveSearch *self = EMPATHY_LIVE_SEARCH (widget);
 507   EmpathyLiveSearchPriv *priv = GET_PRIV (self);
 508
 509   if (!gtk_widget_has_focus (priv->search_entry))
 510     gtk_widget_grab_focus (priv->search_entry);
 511
 512   GTK_WIDGET_CLASS (empathy_live_search_parent_class)->show (widget);
 513 }
 514
 515 static void
 516 live_search_grab_focus (GtkWidget *widget)
 517 {
 518   EmpathyLiveSearch *self = EMPATHY_LIVE_SEARCH (widget);
 519   EmpathyLiveSearchPriv *priv = GET_PRIV (self);
 520
 521   if (!gtk_widget_has_focus (priv->search_entry))
 522     {
 523       gtk_widget_grab_focus (priv->search_entry);
 524       gtk_editable_set_position (GTK_EDITABLE (priv->search_entry), -1);
 525     }
 526 }
 527
 528 static void
 529 empathy_live_search_class_init (EmpathyLiveSearchClass *klass)
 530 {
 531   GObjectClass *object_class = (GObjectClass *) klass;
 532   GtkWidgetClass *widget_class = (GtkWidgetClass *) klass;
 533   GParamSpec *param_spec;
 534
 535   object_class->finalize = live_search_finalize;
 536   object_class->dispose = live_search_dispose;
 537   object_class->get_property = live_search_get_property;
 538   object_class->set_property = live_search_set_property;
 539
 540   widget_class->unmap = live_search_unmap;
 541   widget_class->show = live_search_show;
 542   widget_class->grab_focus = live_search_grab_focus;
 543
 544   signals[ACTIVATE] = g_signal_new ("activate",
 545       G_TYPE_FROM_CLASS (object_class),
 546       G_SIGNAL_RUN_LAST,
 547       0,
 548       NULL, NULL,
 549       g_cclosure_marshal_VOID__VOID,
 550       G_TYPE_NONE, 0);
 551
 552   signals[KEYNAV] = g_signal_new ("key-navigation",
 553       G_TYPE_FROM_CLASS (object_class),
 554       G_SIGNAL_RUN_LAST,
 555       0,
 556       g_signal_accumulator_true_handled, NULL,
 557       _empathy_gtk_marshal_BOOLEAN__BOXED,
 558       G_TYPE_BOOLEAN, 1, GDK_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE);
 559
 560   param_spec = g_param_spec_object ("hook-widget", "Live Search Hook Widget",
 561       "The live search catches key-press-events on this widget",
 562       GTK_TYPE_WIDGET, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
 563   g_object_class_install_property (object_class, PROP_HOOK_WIDGET,
 564       param_spec);
 565
 566   param_spec = g_param_spec_string ("text", "Live Search Text",
 567       "The text of the live search entry",
 568       "", G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
 569   g_object_class_install_property (object_class, PROP_TEXT, param_spec);
 570
 571   g_type_class_add_private (klass, sizeof (EmpathyLiveSearchPriv));
 572 }
 573
 574 static void
 575 empathy_live_search_init (EmpathyLiveSearch *self)
 576 {
 577   EmpathyLiveSearchPriv *priv =
 578     G_TYPE_INSTANCE_GET_PRIVATE ((self), EMPATHY_TYPE_LIVE_SEARCH,
 579         EmpathyLiveSearchPriv);
 580
 581   gtk_widget_set_no_show_all (GTK_WIDGET (self), TRUE);
 582
 583   priv->search_entry = gtk_entry_new ();
 584   gtk_entry_set_icon_from_stock (GTK_ENTRY (priv->search_entry),
 585       GTK_ENTRY_ICON_SECONDARY, GTK_STOCK_CLOSE);
 586   gtk_entry_set_icon_activatable (GTK_ENTRY (priv->search_entry),
 587       GTK_ENTRY_ICON_SECONDARY, TRUE);
 588   gtk_entry_set_icon_sensitive (GTK_ENTRY (priv->search_entry),
 589       GTK_ENTRY_ICON_SECONDARY, TRUE);
 590   gtk_widget_show (priv->search_entry);
 591
 592   gtk_box_pack_start (GTK_BOX (self), priv->search_entry, TRUE, TRUE, 0);
 593
 594   g_signal_connect (priv->search_entry, "icon_release",
 595       G_CALLBACK (live_search_close_pressed), self);
 596   g_signal_connect (priv->search_entry, "changed",
 597       G_CALLBACK (live_search_text_changed), self);
 598   g_signal_connect (priv->search_entry, "key-press-event",
 599       G_CALLBACK (live_search_entry_key_pressed_cb), self);
 600   g_signal_connect (priv->search_entry, "activate",
 601       G_CALLBACK (live_search_entry_activate_cb), self);
 602
 603   priv->hook_widget = NULL;
 604
 605   self->priv = priv;
 606 }
 607
 608 GtkWidget *
 609 empathy_live_search_new (GtkWidget *hook)
 610 {
 611   g_return_val_if_fail (hook == NULL || GTK_IS_WIDGET (hook), NULL);
 612
 613   return g_object_new (EMPATHY_TYPE_LIVE_SEARCH,
 614       "hook-widget", hook,
 615       NULL);
 616 }
 617
 618 /* public methods */
 619
 620 GtkWidget *
 621 empathy_live_search_get_hook_widget (EmpathyLiveSearch *self)
 622 {
 623   EmpathyLiveSearchPriv *priv = GET_PRIV (self);
 624
 625   g_return_val_if_fail (EMPATHY_IS_LIVE_SEARCH (self), NULL);
 626
 627   return priv->hook_widget;
 628 }
 629
 630 void
 631 empathy_live_search_set_hook_widget (EmpathyLiveSearch *self,
 632     GtkWidget *hook)
 633 {
 634   EmpathyLiveSearchPriv *priv;
 635
 636   g_return_if_fail (EMPATHY_IS_LIVE_SEARCH (self));
 637   g_return_if_fail (hook == NULL || GTK_IS_WIDGET (hook));
 638
 639   priv = GET_PRIV (self);
 640
 641   /* release the actual widget */
 642   live_search_release_hook_widget (self);
 643
 644   /* connect handlers if new source is not null */
 645   if (hook != NULL)
 646     {
 647       priv->hook_widget = g_object_ref (hook);
 648       g_signal_connect (priv->hook_widget, "key-press-event",
 649           G_CALLBACK (live_search_key_press_event_cb),
 650           self);
 651       g_signal_connect (priv->hook_widget, "destroy",
 652           G_CALLBACK (live_search_hook_widget_destroy_cb),
 653           self);
 654     }
 655 }
 656
 657 const gchar *
 658 empathy_live_search_get_text (EmpathyLiveSearch *self)
 659 {
 660   EmpathyLiveSearchPriv *priv = GET_PRIV (self);
 661
 662   g_return_val_if_fail (EMPATHY_IS_LIVE_SEARCH (self), NULL);
 663
 664   return gtk_entry_get_text (GTK_ENTRY (priv->search_entry));
 665 }
 666
 667 void
 668 empathy_live_search_set_text (EmpathyLiveSearch *self,
 669     const gchar *text)
 670 {
 671   EmpathyLiveSearchPriv *priv = GET_PRIV (self);
 672
 673   g_return_if_fail (EMPATHY_IS_LIVE_SEARCH (self));
 674   g_return_if_fail (text != NULL);
 675
 676   gtk_entry_set_text (GTK_ENTRY (priv->search_entry), text);
 677 }
 678
 679 /**
 680  * empathy_live_search_match:
 681  * @self: a #EmpathyLiveSearch
 682  * @string: a string where to search, must be valid UTF-8.
 683  *
 684  * Search if one of the words in @string string starts with the current text
 685  * of @self.
 686  *
 687  * Searching for "aba" in "Abasto" will match, searching in "Moraba" will not,
 688  * and searching in "A tool (abacus)" will do.
 689  *
 690  * The match is not case-sensitive, and regardless of the accentuation marks.
 691  *
 692  * Returns: %TRUE if a match is found, %FALSE otherwise.
 693  *
 694  **/
 695 gboolean
 696 empathy_live_search_match (EmpathyLiveSearch *self,
 697     const gchar *string)
 698 {
 699   EmpathyLiveSearchPriv *priv;
 700
 701   g_return_val_if_fail (EMPATHY_IS_LIVE_SEARCH (self), FALSE);
 702
 703   priv = GET_PRIV (self);
 704
 705   return empathy_live_search_match_words (string, priv->stripped_words);
 706 }
 707
 708 gboolean
 709 empathy_live_search_match_string (const gchar *string,
 710     const gchar *prefix)
 711 {
 712   GPtrArray *words;
 713   gboolean match;
 714
 715   words = empathy_live_search_strip_utf8_string (prefix);
 716   match = empathy_live_search_match_words (string, words);
 717   if (words != NULL)
 718     g_ptr_array_unref (words);
 719
 720   return match;
 721 }
 722
 723 GPtrArray *
 724 empathy_live_search_get_words (EmpathyLiveSearch *self)
 725 {
 726   EmpathyLiveSearchPriv *priv = GET_PRIV (self);
 727
 728   return priv->stripped_words;
 729 }