git.maemo.org Git - modest/blob - src/widgets/modest-recpt-editor.c

   1 /* Copyright (c) 2007, Nokia Corporation
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  *   notice, this list of conditions and the following disclaimer.
  10  * * Redistributions in binary form must reproduce the above copyright
  11  *   notice, this list of conditions and the following disclaimer in the
  12  *   documentation and/or other materials provided with the distribution.
  13  * * Neither the name of the Nokia Corporation nor the names of its
  14  *   contributors may be used to endorse or promote products derived from
  15  *   this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  18  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  20  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #include <config.h>
  31
  32 #include <glib/gi18n-lib.h>
  33
  34 #include <gtk/gtkscrolledwindow.h>
  35 #include <gtk/gtktextview.h>
  36 #include <gtk/gtkimage.h>
  37 #include <gtk/gtkbutton.h>
  38
  39 #include <modest-text-utils.h>
  40 #include <modest-recpt-editor.h>
  41 #include <modest-scroll-text.h>
  42 #include <pango/pango-attributes.h>
  43 #include <string.h>
  44 #include <gdk/gdkkeysyms.h>
  45 #include <gtk/gtk.h>
  46
  47 static GObjectClass *parent_class = NULL;
  48
  49 #define RECIPIENT_TAG_ID "recpt-id"
  50
  51 /* signals */
  52 enum {
  53         OPEN_ADDRESSBOOK_SIGNAL,
  54         LAST_SIGNAL
  55 };
  56
  57 typedef struct _ModestRecptEditorPrivate ModestRecptEditorPrivate;
  58
  59 struct _ModestRecptEditorPrivate
  60 {
  61         GtkWidget *text_view;
  62         GtkWidget *abook_button;
  63         GtkWidget *scrolled_window;
  64         gchar *recipients;
  65
  66 };
  67
  68 #define MODEST_RECPT_EDITOR_GET_PRIVATE(o)      \
  69         (G_TYPE_INSTANCE_GET_PRIVATE ((o), MODEST_TYPE_RECPT_EDITOR, ModestRecptEditorPrivate))
  70
  71 static guint signals[LAST_SIGNAL] = {0};
  72
  73 /* static functions: GObject */
  74 static void modest_recpt_editor_instance_init (GTypeInstance *instance, gpointer g_class);
  75 static void modest_recpt_editor_finalize (GObject *object);
  76 static void modest_recpt_editor_class_init (ModestRecptEditorClass *klass);
  77
  78 /* widget events */
  79 static void modest_recpt_editor_on_abook_clicked (GtkButton *button,
  80                                                   ModestRecptEditor *editor);
  81 static gboolean modest_recpt_editor_on_button_release_event (GtkWidget *widget,
  82                                                              GdkEventButton *event,
  83                                                              ModestRecptEditor *editor);
  84 static void modest_recpt_editor_move_cursor_to_end (ModestRecptEditor *editor);
  85 static void modest_recpt_editor_on_focus_in (GtkTextView *text_view,
  86                                              GdkEventFocus *event,
  87                                              ModestRecptEditor *editor);
  88 static void modest_recpt_editor_on_insert_text (GtkTextBuffer *buffer,
  89                                                 GtkTextIter *location,
  90                                                 gchar *text,
  91                                                 gint len,
  92                                                 ModestRecptEditor *editor);
  93 static gboolean modest_recpt_editor_on_key_press_event (GtkTextView *text_view,
  94                                                           GdkEventKey *key,
  95                                                           ModestRecptEditor *editor);
  96 static GtkTextTag *iter_has_recipient (GtkTextIter *iter);
  97 static gunichar iter_previous_char (GtkTextIter *iter);
  98 /* static gunichar iter_next_char (GtkTextIter *iter); */
  99 static GtkTextTag *prev_iter_has_recipient (GtkTextIter *iter);
 100 /* static GtkTextTag *next_iter_has_recipient (GtkTextIter *iter); */
 101 static void select_tag_of_iter (GtkTextIter *iter, GtkTextTag *tag);
 102 static gboolean quote_opened (GtkTextIter *iter);
 103
 104 /**
 105  * modest_recpt_editor_new:
 106  *
 107  * Return value: a new #ModestRecptEditor instance implemented for Gtk+
 108  **/
 109 GtkWidget*
 110 modest_recpt_editor_new (void)
 111 {
 112         ModestRecptEditor *self = g_object_new (MODEST_TYPE_RECPT_EDITOR,
 113                                                 "homogeneous", FALSE,
 114                                                 "spacing", 1,
 115                                                 NULL);
 116
 117         return GTK_WIDGET (self);
 118 }
 119
 120 void
 121 modest_recpt_editor_set_recipients (ModestRecptEditor *recpt_editor, const gchar *recipients)
 122 {
 123         ModestRecptEditorPrivate *priv;
 124         GtkTextBuffer *buffer = NULL;
 125
 126         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 127         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 128
 129         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 130
 131         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 132         gtk_text_buffer_set_text (buffer, recipients, -1);
 133         if (GTK_WIDGET_REALIZED (recpt_editor))
 134                 gtk_widget_queue_resize (GTK_WIDGET (recpt_editor));
 135         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 136
 137 }
 138
 139 void
 140 modest_recpt_editor_add_recipients (ModestRecptEditor *recpt_editor, const gchar *recipients)
 141 {
 142         ModestRecptEditorPrivate *priv;
 143         GtkTextBuffer *buffer = NULL;
 144         GtkTextIter iter;
 145         gchar * string_to_add;
 146
 147         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 148         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 149
 150         if (recipients == NULL)
 151                 return;
 152
 153         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 154
 155         if (gtk_text_buffer_get_char_count (buffer) > 0) {
 156                 string_to_add = g_strconcat (";\n", recipients, NULL);
 157         } else {
 158                 string_to_add = g_strdup (recipients);
 159         }
 160
 161         gtk_text_buffer_get_end_iter (buffer, &iter);
 162
 163         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 164
 165         gtk_text_buffer_insert (buffer, &iter, recipients, -1);
 166
 167         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 168
 169         if (GTK_WIDGET_REALIZED (recpt_editor))
 170                 gtk_widget_queue_resize (GTK_WIDGET (recpt_editor));
 171
 172 }
 173
 174 void
 175 modest_recpt_editor_add_resolved_recipient (ModestRecptEditor *recpt_editor, GSList *email_list, const gchar * recipient_id)
 176 {
 177         ModestRecptEditorPrivate *priv;
 178         GtkTextBuffer *buffer = NULL;
 179         GtkTextIter start, end, iter;
 180         GtkTextTag *tag = NULL;
 181         GSList *node;
 182         gboolean is_first_recipient = TRUE;
 183
 184         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 185         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 186
 187         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 188
 189         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 190         gtk_text_buffer_get_bounds (buffer, &start, &end);
 191         if (gtk_text_buffer_get_char_count (buffer) > 0) {
 192                 gchar * buffer_contents;
 193
 194                 gtk_text_buffer_get_bounds (buffer, &start, &end);
 195                 buffer_contents = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 196                 if (!g_str_has_suffix (buffer_contents, "\n")) {
 197                         if (g_str_has_suffix (buffer_contents, ";")||(g_str_has_suffix (buffer_contents, ",")))
 198                                 gtk_text_buffer_insert (buffer, &end, "\n", -1);
 199                         else
 200                                 gtk_text_buffer_insert (buffer, &end, ";\n", -1);
 201                 }
 202                 g_free (buffer_contents);
 203         }
 204
 205         gtk_text_buffer_get_end_iter (buffer, &iter);
 206
 207         tag = gtk_text_buffer_create_tag (buffer, NULL,
 208                                           "underline", PANGO_UNDERLINE_SINGLE,
 209                                           "wrap-mode", GTK_WRAP_NONE,
 210                                           "editable", TRUE, NULL);
 211
 212         g_object_set_data (G_OBJECT (tag), "recipient-tag-id", GINT_TO_POINTER (RECIPIENT_TAG_ID));
 213         g_object_set_data_full (G_OBJECT (tag), "recipient-id", g_strdup (recipient_id), (GDestroyNotify) g_free);
 214
 215         for (node = email_list; node != NULL; node = g_slist_next (node)) {
 216                 gchar *recipient = (gchar *) node->data;
 217
 218                 if ((recipient) && (strlen (recipient) != 0)) {
 219
 220                         if (!is_first_recipient)
 221                         gtk_text_buffer_insert (buffer, &iter, "\n", -1);
 222
 223                         gtk_text_buffer_insert_with_tags (buffer, &iter, recipient, -1, tag, NULL);
 224                         gtk_text_buffer_insert (buffer, &iter, ";", -1);
 225                         is_first_recipient = FALSE;
 226                 }
 227         }
 228         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 229
 230         modest_recpt_editor_move_cursor_to_end (recpt_editor);
 231
 232 }
 233
 234 void
 235 modest_recpt_editor_replace_with_resolved_recipient (ModestRecptEditor *recpt_editor,
 236                                                      GtkTextIter *start, GtkTextIter *end,
 237                                                      GSList *email_list, const gchar * recipient_id)
 238 {
 239         ModestRecptEditorPrivate *priv;
 240         GtkTextBuffer *buffer;
 241         GtkTextTag *tag;
 242         GSList *node;
 243         gboolean is_first_recipient = TRUE;
 244
 245         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 246         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 247
 248         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 249         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 250
 251         gtk_text_buffer_delete (buffer, start, end);
 252
 253         tag = gtk_text_buffer_create_tag (buffer, NULL,
 254                                           "underline", PANGO_UNDERLINE_SINGLE,
 255                                           "wrap-mode", GTK_WRAP_NONE,
 256                                           "editable", TRUE, NULL);
 257
 258         g_object_set_data (G_OBJECT (tag), "recipient-tag-id", GINT_TO_POINTER (RECIPIENT_TAG_ID));
 259         g_object_set_data_full (G_OBJECT (tag), "recipient-id", g_strdup (recipient_id), (GDestroyNotify) g_free);
 260
 261         for (node = email_list; node != NULL; node = g_slist_next (node)) {
 262                 gchar *recipient = (gchar *) node->data;
 263
 264                 if ((recipient) && (strlen (recipient) != 0)) {
 265
 266                         if (!is_first_recipient)
 267                         gtk_text_buffer_insert (buffer, start, "\n", -1);
 268
 269                         gtk_text_buffer_insert_with_tags (buffer, start, recipient, -1, tag, NULL);
 270
 271                         if (node->next != NULL)
 272                                 gtk_text_buffer_insert (buffer, start, ";", -1);
 273                         is_first_recipient = FALSE;
 274                 }
 275         }
 276         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 277
 278 }
 279
 280
 281 const gchar *
 282 modest_recpt_editor_get_recipients (ModestRecptEditor *recpt_editor)
 283 {
 284         ModestRecptEditorPrivate *priv;
 285         GtkTextBuffer *buffer = NULL;
 286         GtkTextIter start, end;
 287         gchar *c;
 288
 289         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), NULL);
 290         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 291
 292         if (priv->recipients != NULL) {
 293                 g_free (priv->recipients);
 294                 priv->recipients = NULL;
 295         }
 296
 297         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 298
 299         gtk_text_buffer_get_start_iter (buffer, &start);
 300         gtk_text_buffer_get_end_iter (buffer, &end);
 301
 302         priv->recipients = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 303         for (c = priv->recipients; *c != '\0'; c = g_utf8_next_char (c)) {
 304                 if (*c == '\n') {
 305                         *c = ' ';
 306                 }
 307         }
 308
 309         return priv->recipients;
 310
 311 }
 312
 313 static void
 314 modest_recpt_editor_instance_init (GTypeInstance *instance, gpointer g_class)
 315 {
 316         ModestRecptEditorPrivate *priv;
 317         GtkWidget *abook_icon;
 318         GtkTextBuffer *buffer;
 319
 320         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (instance);
 321
 322         priv->abook_button = gtk_button_new ();
 323         gtk_button_set_relief (GTK_BUTTON (priv->abook_button), GTK_RELIEF_NONE);
 324         gtk_button_set_focus_on_click (GTK_BUTTON (priv->abook_button), FALSE);
 325         GTK_WIDGET_UNSET_FLAGS (priv->abook_button, GTK_CAN_FOCUS);
 326         gtk_button_set_alignment (GTK_BUTTON (priv->abook_button), 1.0, 1.0);
 327         abook_icon = gtk_image_new_from_icon_name ("qgn_list_addressbook", GTK_ICON_SIZE_BUTTON);
 328         gtk_container_add (GTK_CONTAINER (priv->abook_button), abook_icon);
 329
 330         priv->text_view = gtk_text_view_new ();
 331
 332 /* on maemo, explicitly turn on autocaps */
 333 #ifdef  MODEST_PLATFORM_MAEMO
 334         hildon_gtk_text_view_set_input_mode (GTK_TEXT_VIEW(priv->text_view), HILDON_GTK_INPUT_MODE_AUTOCAP);
 335 #endif  /*MODEST_PLATFORM_MAEMO_0*/
 336
 337         priv->scrolled_window = modest_scroll_text_new (GTK_TEXT_VIEW (priv->text_view), 5);
 338         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_POLICY_NEVER,
 339                                         GTK_POLICY_AUTOMATIC);
 340         gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_SHADOW_IN);
 341 /*      gtk_container_add (GTK_CONTAINER (priv->scrolled_window), priv->text_view); */
 342
 343         gtk_box_pack_start (GTK_BOX (instance), priv->scrolled_window, TRUE, TRUE, 0);
 344 /*      gtk_box_pack_start (GTK_BOX (instance), priv->text_view, TRUE, TRUE, 0); */
 345         gtk_box_pack_end (GTK_BOX (instance), priv->abook_button, FALSE, FALSE, 0);
 346
 347         gtk_text_view_set_accepts_tab (GTK_TEXT_VIEW (priv->text_view), FALSE);
 348         gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (priv->text_view), TRUE);
 349         gtk_text_view_set_editable (GTK_TEXT_VIEW (priv->text_view), TRUE);
 350
 351         gtk_text_view_set_justification (GTK_TEXT_VIEW (priv->text_view), GTK_JUSTIFY_LEFT);
 352         gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (priv->text_view), GTK_WRAP_CHAR);
 353
 354         gtk_widget_set_size_request (priv->text_view, 75, -1);
 355
 356         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 357         g_signal_connect (G_OBJECT (priv->abook_button), "clicked", G_CALLBACK (modest_recpt_editor_on_abook_clicked), instance);
 358         g_signal_connect (G_OBJECT (priv->text_view), "button-release-event", G_CALLBACK (modest_recpt_editor_on_button_release_event), instance);
 359         g_signal_connect (G_OBJECT (priv->text_view), "key-press-event", G_CALLBACK (modest_recpt_editor_on_key_press_event), instance);
 360         g_signal_connect (G_OBJECT (priv->text_view), "focus-in-event", G_CALLBACK (modest_recpt_editor_on_focus_in), instance);
 361         g_signal_connect (G_OBJECT (buffer), "insert-text", G_CALLBACK (modest_recpt_editor_on_insert_text), instance);
 362
 363 /*      gtk_container_set_focus_child (GTK_CONTAINER (instance), priv->text_view); */
 364
 365         return;
 366 }
 367
 368 void
 369 modest_recpt_editor_set_field_size_group (ModestRecptEditor *recpt_editor, GtkSizeGroup *size_group)
 370 {
 371         ModestRecptEditorPrivate *priv;
 372
 373         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 374         g_return_if_fail (GTK_IS_SIZE_GROUP (size_group));
 375         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 376
 377         gtk_size_group_add_widget (size_group, priv->scrolled_window);
 378 }
 379
 380 GtkTextBuffer *
 381 modest_recpt_editor_get_buffer (ModestRecptEditor *recpt_editor)
 382 {
 383         ModestRecptEditorPrivate *priv;
 384
 385         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), NULL);
 386         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 387
 388         return gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 389 }
 390
 391 static void
 392 modest_recpt_editor_on_abook_clicked (GtkButton *button, ModestRecptEditor *editor)
 393 {
 394         g_return_if_fail (MODEST_IS_RECPT_EDITOR (editor));
 395
 396         g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
 397 }
 398
 399 static gboolean
 400 modest_recpt_editor_on_button_release_event (GtkWidget *widget,
 401                                              GdkEventButton *event,
 402                                              ModestRecptEditor *recpt_editor)
 403 {
 404         ModestRecptEditorPrivate *priv;
 405         GtkTextIter location, start, end;
 406         GtkTextMark *mark;
 407         GtkTextBuffer *buffer;
 408         GtkTextTag *tag;
 409         gboolean selection_changed = FALSE;
 410
 411         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 412
 413         buffer = modest_recpt_editor_get_buffer (recpt_editor);
 414         mark = gtk_text_buffer_get_insert (buffer);
 415         gtk_text_buffer_get_iter_at_mark (buffer, &location, mark);
 416
 417         gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
 418
 419         tag = iter_has_recipient (&start);
 420         if (tag != NULL)
 421                 if (!gtk_text_iter_begins_tag (&start, tag)) {
 422                         gtk_text_iter_backward_to_tag_toggle (&start, tag);
 423                         selection_changed = TRUE;
 424                 }
 425
 426         tag = iter_has_recipient (&end);
 427         if (tag != NULL)
 428                 if (!gtk_text_iter_ends_tag (&end, tag)) {
 429                         gtk_text_iter_forward_to_tag_toggle (&end, tag);
 430                         selection_changed = TRUE;
 431                 }
 432
 433         gtk_text_buffer_select_range (buffer, &start, &end);
 434
 435         return FALSE;
 436 }
 437
 438 static void
 439 modest_recpt_editor_on_focus_in (GtkTextView *text_view,
 440                                  GdkEventFocus *event,
 441                                  ModestRecptEditor *editor)
 442 {
 443         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 444         gtk_text_view_place_cursor_onscreen (GTK_TEXT_VIEW (priv->text_view));
 445 }
 446
 447 static void
 448 modest_recpt_editor_on_insert_text (GtkTextBuffer *buffer,
 449                                     GtkTextIter *location,
 450                                     gchar *text,
 451                                     gint len,
 452                                     ModestRecptEditor *editor)
 453 {
 454         GtkTextIter prev;
 455         gunichar prev_char;
 456         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 457
 458         if (iter_has_recipient (location)) {
 459                 gtk_text_buffer_get_end_iter (buffer, location);
 460                 gtk_text_buffer_place_cursor (buffer, location);
 461         }
 462
 463         if (gtk_text_iter_is_start (location))
 464                 return;
 465
 466         if (gtk_text_iter_is_end (location)) {
 467                 prev = *location;
 468                 if (!gtk_text_iter_backward_char (&prev))
 469                         return;
 470                 prev_char = gtk_text_iter_get_char (&prev);
 471                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 472                 if ((prev_char == ';'||prev_char == ',')&&(!quote_opened(location))) {
 473                         GtkTextMark *insert;
 474                         gtk_text_buffer_insert (buffer, location, "\n",-1);
 475                         insert = gtk_text_buffer_get_insert (buffer);
 476                         gtk_text_view_scroll_to_iter (GTK_TEXT_VIEW (priv->text_view), location, 0.0,TRUE, 0.0, 1.0);
 477                 }
 478                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 479
 480         }
 481
 482 }
 483
 484 static GtkTextTag *
 485 iter_has_recipient (GtkTextIter *iter)
 486 {
 487         GSList *tags, *node;
 488         GtkTextTag *result = NULL;
 489
 490         tags = gtk_text_iter_get_tags (iter);
 491
 492         for (node = tags; node != NULL; node = g_slist_next (node)) {
 493                 GtkTextTag *tag = GTK_TEXT_TAG (node->data);
 494
 495                 if (g_object_get_data (G_OBJECT (tag), "recipient-tag-id")) {
 496                         result = tag;
 497                         break;
 498                 }
 499         }
 500         g_slist_free (tags);
 501         return result;
 502 }
 503
 504 static GtkTextTag *
 505 prev_iter_has_recipient (GtkTextIter *iter)
 506 {
 507         GtkTextIter prev;
 508
 509         prev = *iter;
 510         gtk_text_iter_backward_char (&prev);
 511         return iter_has_recipient (&prev);
 512 }
 513
 514 /* static GtkTextTag * */
 515 /* next_iter_has_recipient (GtkTextIter *iter) */
 516 /* { */
 517 /*      GtkTextIter next; */
 518
 519 /*      next = *iter; */
 520 /*      return iter_has_recipient (&next); */
 521 /* } */
 522
 523 static gunichar
 524 iter_previous_char (GtkTextIter *iter)
 525 {
 526         GtkTextIter prev;
 527
 528         prev = *iter;
 529         gtk_text_iter_backward_char (&prev);
 530         return gtk_text_iter_get_char (&prev);
 531 }
 532
 533 /* static gunichar  */
 534 /* iter_next_char (GtkTextIter *iter) */
 535 /* { */
 536 /*      GtkTextIter next; */
 537
 538 /*      next = *iter; */
 539 /*      gtk_text_iter_forward_char (&next); */
 540 /*      return gtk_text_iter_get_char (&next); */
 541 /* } */
 542
 543 static void
 544 select_tag_of_iter (GtkTextIter *iter, GtkTextTag *tag)
 545 {
 546         GtkTextIter start, end;
 547
 548         start = *iter;
 549         if (!gtk_text_iter_begins_tag (&start, tag))
 550                 gtk_text_iter_backward_to_tag_toggle (&start, tag);
 551         end = *iter;
 552         if (!gtk_text_iter_ends_tag (&end, tag))
 553                 gtk_text_iter_forward_to_tag_toggle (&end, tag);
 554         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &start, &end);
 555 }
 556
 557 static gboolean
 558 quote_opened (GtkTextIter *iter)
 559 {
 560         GtkTextIter start;
 561         GtkTextBuffer *buffer;
 562         gboolean opened = FALSE;
 563
 564         buffer = gtk_text_iter_get_buffer (iter);
 565         gtk_text_buffer_get_start_iter (buffer, &start);
 566
 567         while (!gtk_text_iter_equal (&start, iter)) {
 568                 gunichar current_char = gtk_text_iter_get_char (&start);
 569                 if (current_char == '"')
 570                         opened = !opened;
 571                 else if (current_char == '\\')
 572                         gtk_text_iter_forward_char (&start);
 573                 if (!gtk_text_iter_equal (&start, iter))
 574                         gtk_text_iter_forward_char (&start);
 575
 576         }
 577         return opened;
 578
 579 }
 580
 581
 582 static gboolean
 583 modest_recpt_editor_on_key_press_event (GtkTextView *text_view,
 584                                           GdkEventKey *key,
 585                                           ModestRecptEditor *editor)
 586 {
 587         GtkTextMark *insert;
 588         GtkTextBuffer * buffer;
 589         GtkTextIter location;
 590         GtkTextTag *tag;
 591
 592         buffer = gtk_text_view_get_buffer (text_view);
 593         insert = gtk_text_buffer_get_insert (buffer);
 594
 595         /* cases to cover:
 596          *    * cursor is on resolved recipient:
 597          *        - right should go to first character after the recipient (usually ; or ,)
 598          *        - left should fo to the first character before the recipient
 599          *        - return should run check names on the recipient.
 600          *    * cursor is just after a recipient:
 601          *        - right should go to the next character. If it's a recipient, should select
 602          *          it
 603          *        - left should go to the previous character. If it's a recipient, should go
 604          *          to the first character of the recipient, and select it.
 605          *    * cursor is on arbitrary text:
 606          *        - return should add a ; and go to the next line
 607          *        - left or right standard ones.
 608          *    * cursor is after a \n:
 609          *        - left should go to the character before the \n (as if \n was not a character)
 610          *    * cursor is before a \n:
 611          *        - right should go to the character after the \n
 612          */
 613
 614         gtk_text_buffer_get_iter_at_mark (buffer, &location, insert);
 615
 616         switch (key->keyval) {
 617         case GDK_Left:
 618         case GDK_KP_Left:
 619         {
 620                 gboolean cursor_ready = FALSE;
 621                 while (!cursor_ready) {
 622                         if (iter_previous_char (&location) == '\n') {
 623                                 gtk_text_iter_backward_char (&location);
 624                         } else {
 625                                 cursor_ready = TRUE;
 626                         }
 627                 }
 628                 tag = iter_has_recipient (&location);
 629                 if ((tag != NULL)&& (gtk_text_iter_is_start (&location) || !(gtk_text_iter_begins_tag (&location, tag)))) {
 630                         select_tag_of_iter (&location, tag);
 631                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 632                         return TRUE;
 633                 }
 634                 gtk_text_iter_backward_char (&location);
 635                 tag = iter_has_recipient (&location);
 636                 if (tag != NULL)
 637                         select_tag_of_iter (&location, tag);
 638                 else {
 639                         gtk_text_buffer_place_cursor (buffer, &location);
 640                 }
 641                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 642
 643                 return TRUE;
 644         }
 645         break;
 646         case GDK_Right:
 647         case GDK_KP_Right:
 648         {
 649                 gboolean cursor_moved = FALSE;
 650
 651                 tag = iter_has_recipient (&location);
 652                 if ((tag != NULL)&&(!gtk_text_iter_ends_tag (&location, tag))) {
 653                         gtk_text_iter_forward_to_tag_toggle (&location, tag);
 654                         while (gtk_text_iter_get_char (&location) == '\n')
 655                                 gtk_text_iter_forward_char (&location);
 656                         gtk_text_buffer_place_cursor (buffer, &location);
 657                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 658                         return TRUE;
 659                 }
 660
 661                 while (gtk_text_iter_get_char (&location) == '\n') {
 662                         gtk_text_iter_forward_char (&location);
 663                         cursor_moved = TRUE;
 664                 }
 665                 if (!cursor_moved)
 666                         gtk_text_iter_forward_char (&location);
 667                 while (gtk_text_iter_get_char (&location) == '\n') {
 668                         gtk_text_iter_forward_char (&location);
 669                         cursor_moved = TRUE;
 670                 }
 671
 672                 tag = iter_has_recipient (&location);
 673                 if (tag != NULL)
 674                         select_tag_of_iter (&location, tag);
 675                 else
 676                         gtk_text_buffer_place_cursor (buffer, &location);
 677                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 678                 return TRUE;
 679         }
 680         break;
 681         case GDK_Return:
 682         case GDK_KP_Enter:
 683         {
 684                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 685                 tag = iter_has_recipient (&location);
 686                 if (tag != NULL) {
 687                         gtk_text_buffer_get_end_iter (buffer, &location);
 688                         gtk_text_buffer_place_cursor (buffer, &location);
 689                         if ((iter_previous_char (&location) != ';')&&(iter_previous_char (&location) != ','))
 690                                 gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
 691                         gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
 692                 } else {
 693                         gunichar prev_char = iter_previous_char (&location);
 694                         if ((gtk_text_iter_is_start (&location))||(prev_char == '\n')
 695                             ||(prev_char == ';')||(prev_char == ','))
 696                                 g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
 697                         else {
 698                                 if ((prev_char != ';') && (prev_char != ','))
 699                                         gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
 700                                 gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
 701                         }
 702                 }
 703                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 704                 return TRUE;
 705         }
 706         break;
 707         case GDK_BackSpace:
 708         {
 709                 #if GTK_CHECK_VERSION(2, 10, 0) /* gtk_text_buffer_get_has_selection is only available in GTK+ 2.10 */
 710                 if (gtk_text_buffer_get_has_selection (buffer)) {
 711                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 712                         return TRUE;
 713                 }
 714                 #else
 715                 if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
 716                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 717                         return TRUE;
 718                 }
 719                 #endif
 720
 721                 tag = prev_iter_has_recipient (&location);
 722                 if (tag != NULL) {
 723                         GtkTextIter iter_in_tag;
 724                         iter_in_tag = location;
 725                         gtk_text_iter_backward_char (&iter_in_tag);
 726                         select_tag_of_iter (&iter_in_tag, tag);
 727                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 728                         return TRUE;
 729                 }
 730                 return FALSE;
 731         }
 732         break;
 733         default:
 734                 return FALSE;
 735         }
 736 }
 737
 738 static void
 739 modest_recpt_editor_move_cursor_to_end (ModestRecptEditor *editor)
 740 {
 741         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 742         GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 743         GtkTextIter start, end;
 744
 745         gtk_text_buffer_get_end_iter (buffer, &start);
 746         end = start;
 747         gtk_text_buffer_select_range (buffer, &start, &end);
 748
 749
 750 }
 751
 752 void
 753 modest_recpt_editor_grab_focus (ModestRecptEditor *recpt_editor)
 754 {
 755         ModestRecptEditorPrivate *priv;
 756
 757         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 758         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 759
 760         gtk_widget_grab_focus (priv->text_view);
 761 }
 762
 763 static void
 764 modest_recpt_editor_finalize (GObject *object)
 765 {
 766         (*parent_class->finalize) (object);
 767
 768         return;
 769 }
 770
 771 static void
 772 modest_recpt_editor_class_init (ModestRecptEditorClass *klass)
 773 {
 774         GObjectClass *object_class;
 775         GtkWidgetClass *widget_class;
 776
 777         parent_class = g_type_class_peek_parent (klass);
 778         object_class = (GObjectClass*) klass;
 779         widget_class = GTK_WIDGET_CLASS (klass);
 780
 781         object_class->finalize = modest_recpt_editor_finalize;
 782
 783         g_type_class_add_private (object_class, sizeof (ModestRecptEditorPrivate));
 784
 785         signals[OPEN_ADDRESSBOOK_SIGNAL] =
 786                 g_signal_new ("open-addressbook",
 787                               G_TYPE_FROM_CLASS (object_class),
 788                               G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
 789                               G_STRUCT_OFFSET (ModestRecptEditorClass, open_addressbook),
 790                               NULL, NULL,
 791                               g_cclosure_marshal_VOID__VOID,
 792                               G_TYPE_NONE, 0);
 793
 794         return;
 795 }
 796
 797 GType
 798 modest_recpt_editor_get_type (void)
 799 {
 800         static GType type = 0;
 801
 802         if (G_UNLIKELY(type == 0))
 803         {
 804                 static const GTypeInfo info =
 805                 {
 806                   sizeof (ModestRecptEditorClass),
 807                   NULL,   /* base_init */
 808                   NULL,   /* base_finalize */
 809                   (GClassInitFunc) modest_recpt_editor_class_init,   /* class_init */
 810                   NULL,   /* class_finalize */
 811                   NULL,   /* class_data */
 812                   sizeof (ModestRecptEditor),
 813                   0,      /* n_preallocs */
 814                   modest_recpt_editor_instance_init    /* instance_init */
 815                 };
 816
 817                 type = g_type_register_static (GTK_TYPE_HBOX,
 818                         "ModestRecptEditor",
 819                         &info, 0);
 820
 821         }
 822
 823         return type;
 824 }