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 #include <modest-ui-constants.h>
  47
  48 /* FIXNE: we should have no maemo-deps in widgets/ */
  49 #ifndef MODEST_TOOLKIT_GTK
  50 #include "modest-hildon-includes.h"
  51 #endif /*!MODEST_TOOLKIT_GTK*/
  52
  53 #define RECPT_BUTTON_WIDTH_HILDON2 118
  54
  55
  56 static GObjectClass *parent_class = NULL;
  57
  58 #define RECIPIENT_TAG_ID "recpt-id"
  59
  60 /* signals */
  61 enum {
  62         OPEN_ADDRESSBOOK_SIGNAL,
  63         LAST_SIGNAL
  64 };
  65
  66 typedef struct _ModestRecptEditorPrivate ModestRecptEditorPrivate;
  67
  68 struct _ModestRecptEditorPrivate
  69 {
  70         GtkWidget *text_view;
  71         GtkWidget *abook_button;
  72         GtkWidget *scrolled_window;
  73         gchar *recipients;
  74         gulong on_mark_set_handler;
  75         gboolean show_abook;
  76 };
  77
  78 #define MODEST_RECPT_EDITOR_GET_PRIVATE(o)      \
  79         (G_TYPE_INSTANCE_GET_PRIVATE ((o), MODEST_TYPE_RECPT_EDITOR, ModestRecptEditorPrivate))
  80
  81 static guint signals[LAST_SIGNAL] = {0};
  82
  83 /* static functions: GObject */
  84 static void modest_recpt_editor_instance_init (GTypeInstance *instance, gpointer g_class);
  85 static void modest_recpt_editor_finalize (GObject *object);
  86 static void modest_recpt_editor_class_init (ModestRecptEditorClass *klass);
  87
  88 /* widget events */
  89 static void modest_recpt_editor_on_abook_clicked (GtkButton *button,
  90                                                   ModestRecptEditor *editor);
  91 static void modest_recpt_editor_add_tags (ModestRecptEditor *editor,
  92                                           const gchar * recipient_id);
  93 static gboolean modest_recpt_editor_on_focus_in (GtkTextView *text_view,
  94                                              GdkEventFocus *event,
  95                                              ModestRecptEditor *editor);
  96 static void modest_recpt_editor_on_mark_set (GtkTextBuffer *buffer,
  97                                              GtkTextIter *iter,
  98                                              GtkTextMark *mark,
  99                                              ModestRecptEditor *editor);
 100 static void modest_recpt_editor_on_insert_text (GtkTextBuffer *buffer,
 101                                                 GtkTextIter *location,
 102                                                 gchar *text,
 103                                                 gint len,
 104                                                 ModestRecptEditor *editor);
 105 static void modest_recpt_editor_on_insert_text_after (GtkTextBuffer *buffer,
 106                                                       GtkTextIter *location,
 107                                                       gchar *text,
 108                                                       gint len,
 109                                                       ModestRecptEditor *editor);
 110 static gboolean modest_recpt_editor_on_key_press_event (GtkTextView *text_view,
 111                                                           GdkEventKey *key,
 112                                                           ModestRecptEditor *editor);
 113 static GtkTextTag *iter_has_recipient (GtkTextIter *iter);
 114 static gunichar iter_previous_char (GtkTextIter *iter);
 115 /* static gunichar iter_next_char (GtkTextIter *iter); */
 116 static GtkTextTag *prev_iter_has_recipient (GtkTextIter *iter);
 117 /* static GtkTextTag *next_iter_has_recipient (GtkTextIter *iter); */
 118 static void select_tag_of_iter (GtkTextIter *iter, GtkTextTag *tag, gboolean grow, gboolean left_not_right);
 119 static gboolean quote_opened (GtkTextIter *iter);
 120 static gboolean is_valid_insert (const gchar *text, gint len);
 121 static gchar *create_valid_text (const gchar *text, gint len);
 122
 123 /**
 124  * modest_recpt_editor_new:
 125  *
 126  * Return value: a new #ModestRecptEditor instance implemented for Gtk+
 127  **/
 128 GtkWidget*
 129 modest_recpt_editor_new (void)
 130 {
 131         ModestRecptEditor *self = g_object_new (MODEST_TYPE_RECPT_EDITOR,
 132                                                 "homogeneous", FALSE,
 133                                                 "spacing", MODEST_MARGIN_NONE,
 134                                                 NULL);
 135
 136         return GTK_WIDGET (self);
 137 }
 138
 139 void
 140 modest_recpt_editor_set_recipients (ModestRecptEditor *recpt_editor, const gchar *recipients)
 141 {
 142         ModestRecptEditorPrivate *priv;
 143         GtkTextBuffer *buffer = NULL;
 144         gchar *valid_recipients = NULL;
 145
 146         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 147         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 148
 149 #ifdef MODEST_TOOLKIT_HILDON2
 150         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 151 #else
 152         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 153 #endif
 154
 155         valid_recipients = create_valid_text (recipients, -1);
 156         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 157         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text_after, recpt_editor);
 158         gtk_text_buffer_set_text (buffer, valid_recipients, -1);
 159         g_free (valid_recipients);
 160         if (GTK_WIDGET_REALIZED (recpt_editor))
 161                 gtk_widget_queue_resize (GTK_WIDGET (recpt_editor));
 162         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 163         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text_after, recpt_editor);
 164
 165 }
 166
 167 void
 168 modest_recpt_editor_add_recipients (ModestRecptEditor *recpt_editor, const gchar *recipients)
 169 {
 170         ModestRecptEditorPrivate *priv;
 171         GtkTextBuffer *buffer = NULL;
 172         GtkTextIter iter;
 173         gchar *string_to_add;
 174
 175         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 176         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 177
 178         if (recipients == NULL)
 179                 return;
 180
 181 #ifdef MODEST_TOOLKIT_HILDON2
 182         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 183 #else
 184         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 185 #endif
 186
 187         if (gtk_text_buffer_get_char_count (buffer) > 0) {
 188                 string_to_add = g_strconcat (";\n", recipients, NULL);
 189         } else {
 190                 string_to_add = g_strdup (recipients);
 191         }
 192
 193         gtk_text_buffer_get_end_iter (buffer, &iter);
 194
 195         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 196         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text_after, recpt_editor);
 197
 198         gtk_text_buffer_insert (buffer, &iter, string_to_add, -1);
 199
 200         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 201         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text_after, recpt_editor);
 202
 203         if (GTK_WIDGET_REALIZED (recpt_editor))
 204                 gtk_widget_queue_resize (GTK_WIDGET (recpt_editor));
 205
 206         g_free (string_to_add);
 207 }
 208
 209 void
 210 modest_recpt_editor_add_resolved_recipient (ModestRecptEditor *recpt_editor, GSList *email_list, const gchar * recipient_id)
 211 {
 212         ModestRecptEditorPrivate *priv;
 213         GtkTextBuffer *buffer = NULL;
 214         GtkTextIter start, end, iter;
 215         GSList *node;
 216         gboolean is_first_recipient = TRUE;
 217
 218         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 219         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 220
 221 #ifdef MODEST_TOOLKIT_HILDON2
 222         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 223 #else
 224         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 225 #endif
 226
 227         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 228         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text_after, recpt_editor);
 229         gtk_text_buffer_get_bounds (buffer, &start, &end);
 230         if (gtk_text_buffer_get_char_count (buffer) > 0) {
 231                 gchar * buffer_contents;
 232
 233                 gtk_text_buffer_get_bounds (buffer, &start, &end);
 234                 buffer_contents = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 235                 g_strstrip (buffer_contents);
 236                 if (!g_str_has_suffix (buffer_contents, "\n")) {
 237                         if (g_str_has_suffix (buffer_contents, ";")||(g_str_has_suffix (buffer_contents, ",")))
 238                                 gtk_text_buffer_insert (buffer, &end, "\n", -1);
 239                         else
 240                                 gtk_text_buffer_insert (buffer, &end, ";\n", -1);
 241                 }
 242                 g_free (buffer_contents);
 243         }
 244
 245         gtk_text_buffer_get_end_iter (buffer, &iter);
 246
 247         for (node = email_list; node != NULL; node = g_slist_next (node)) {
 248                 gchar *recipient = (gchar *) node->data;
 249
 250                 if ((recipient) && (strlen (recipient) != 0)) {
 251
 252                         if (!is_first_recipient)
 253                                 gtk_text_buffer_insert (buffer, &iter, "\n", -1);
 254
 255                         gtk_text_buffer_insert (buffer, &iter, recipient, -1);
 256                         gtk_text_buffer_insert (buffer, &iter, ";", -1);
 257                         is_first_recipient = FALSE;
 258                 }
 259         }
 260         modest_recpt_editor_add_tags (recpt_editor, recipient_id);
 261
 262         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 263         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text_after, recpt_editor);
 264 }
 265
 266 void
 267 modest_recpt_editor_replace_with_resolved_recipient (ModestRecptEditor *recpt_editor,
 268                                                      GtkTextIter *start, GtkTextIter *end,
 269                                                      GSList *email_list, const gchar * recipient_id)
 270 {
 271         GSList *email_lists_list;
 272         GSList *recipient_ids_list;
 273
 274         email_lists_list = g_slist_append (NULL, email_list);
 275         recipient_ids_list = g_slist_append (NULL, (gpointer) recipient_id);
 276
 277         modest_recpt_editor_replace_with_resolved_recipients (recpt_editor, start, end,
 278                                                               email_lists_list, recipient_ids_list);
 279
 280         g_slist_free (email_lists_list);
 281         g_slist_free (recipient_ids_list);
 282
 283 }
 284
 285 void
 286 modest_recpt_editor_replace_with_resolved_recipients (ModestRecptEditor *recpt_editor,
 287                                                      GtkTextIter *start, GtkTextIter *end,
 288                                                      GSList *email_lists_list, GSList * recipient_ids_list)
 289 {
 290         ModestRecptEditorPrivate *priv;
 291         GtkTextBuffer *buffer;
 292         GtkTextTag *tag;
 293         GSList *node;
 294         gboolean is_first_recipient = TRUE;
 295
 296         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 297         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 298
 299 #ifdef MODEST_TOOLKIT_HILDON2
 300         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 301 #else
 302         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 303 #endif
 304         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 305         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text_after, recpt_editor);
 306
 307         gtk_text_buffer_delete (buffer, start, end);
 308
 309         while (email_lists_list && recipient_ids_list) {
 310                 gchar *recipient_id = (gchar *) recipient_ids_list->data;
 311                 GSList *email_list = (GSList *) email_lists_list->data;
 312
 313                 tag = gtk_text_buffer_create_tag (buffer, NULL,
 314                                                   "underline", PANGO_UNDERLINE_SINGLE,
 315                                                   "wrap-mode", GTK_WRAP_NONE,
 316                                                   "editable", TRUE, NULL);
 317
 318                 g_object_set_data (G_OBJECT (tag), "recipient-tag-id", GINT_TO_POINTER (RECIPIENT_TAG_ID));
 319                 g_object_set_data_full (G_OBJECT (tag), "recipient-id", g_strdup (recipient_id), (GDestroyNotify) g_free);
 320
 321                 for (node = email_list; node != NULL; node = g_slist_next (node)) {
 322                         gchar *recipient = (gchar *) node->data;
 323
 324                         if ((recipient) && (strlen (recipient) != 0)) {
 325
 326                                 if (!is_first_recipient || !gtk_text_iter_is_start(start))
 327                                         gtk_text_buffer_insert (buffer, start, "\n", -1);
 328
 329                                 gtk_text_buffer_insert_with_tags (buffer, start, recipient, -1, tag, NULL);
 330
 331                                 if (node->next != NULL)
 332                                         gtk_text_buffer_insert (buffer, start, ";", -1);
 333                                 is_first_recipient = FALSE;
 334                         }
 335                 }
 336
 337                 email_lists_list = g_slist_next (email_lists_list);
 338                 recipient_ids_list = g_slist_next (recipient_ids_list);
 339
 340                 /* Add a separator between lists of emails*/
 341                 if (recipient_ids_list)
 342                         gtk_text_buffer_insert (buffer, start, ";", -1);
 343         }
 344         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 345         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text_after, recpt_editor);
 346
 347 }
 348
 349
 350 const gchar *
 351 modest_recpt_editor_get_recipients (ModestRecptEditor *recpt_editor)
 352 {
 353         ModestRecptEditorPrivate *priv;
 354         GtkTextBuffer *buffer = NULL;
 355         GtkTextIter start, end;
 356
 357         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), NULL);
 358         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 359
 360         if (priv->recipients != NULL) {
 361                 g_free (priv->recipients);
 362                 priv->recipients = NULL;
 363         }
 364
 365 #ifdef MODEST_TOOKIT_HILDON2
 366         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 367 #else
 368         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 369 #endif
 370
 371         gtk_text_buffer_get_start_iter (buffer, &start);
 372         gtk_text_buffer_get_end_iter (buffer, &end);
 373
 374         priv->recipients = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 375
 376         return priv->recipients;
 377
 378 }
 379
 380 static void
 381 modest_recpt_editor_instance_init (GTypeInstance *instance, gpointer g_class)
 382 {
 383         ModestRecptEditorPrivate *priv;
 384         GtkWidget *abook_icon;
 385         GtkWidget *abook_align;
 386         GtkTextBuffer *buffer;
 387
 388         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (instance);
 389
 390         priv->show_abook = TRUE;
 391         priv->abook_button = gtk_button_new ();
 392         gtk_widget_set_no_show_all (GTK_WIDGET (priv->abook_button), TRUE);
 393         gtk_widget_show (priv->abook_button);
 394 #ifdef MODEST_TOOLKIT_HILDON2
 395         gtk_widget_set_size_request (priv->abook_button, RECPT_BUTTON_WIDTH_HILDON2, -1);
 396 #else
 397         gtk_button_set_relief (GTK_BUTTON (priv->abook_button), GTK_RELIEF_NONE);
 398 #endif
 399         gtk_button_set_focus_on_click (GTK_BUTTON (priv->abook_button), FALSE);
 400         GTK_WIDGET_UNSET_FLAGS (priv->abook_button, GTK_CAN_FOCUS);
 401         gtk_button_set_alignment (GTK_BUTTON (priv->abook_button), 0.5, 0.5);
 402 #ifdef MODEST_TOOLKIT_HILDON2
 403         abook_icon = gtk_image_new_from_icon_name ("general_contacts", HILDON_ICON_SIZE_FINGER);
 404 #else
 405         abook_icon = gtk_image_new_from_icon_name ("qgn_list_addressbook", GTK_ICON_SIZE_BUTTON);
 406 #endif
 407         gtk_container_add (GTK_CONTAINER (priv->abook_button), abook_icon);
 408
 409 #ifdef MODEST_TOOLKIT_HILDON2
 410         priv->text_view = hildon_text_view_new ();
 411 #else
 412         priv->text_view = gtk_text_view_new ();
 413 #endif
 414         /* Auto-capitalization is the default, so let's turn it off: */
 415 #ifdef MAEMO_CHANGES
 416         hildon_gtk_text_view_set_input_mode (GTK_TEXT_VIEW (priv->text_view),
 417                 HILDON_GTK_INPUT_MODE_FULL);
 418 #endif
 419
 420         priv->recipients = NULL;
 421
 422 #ifdef MODEST_TOOLKIT_HILDON2
 423         priv->scrolled_window = NULL;
 424         gtk_box_pack_start (GTK_BOX (instance), priv->text_view, TRUE, TRUE, 0);
 425 #else
 426         priv->scrolled_window = modest_scroll_text_new (GTK_TEXT_VIEW (priv->text_view), 1024);
 427         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_POLICY_NEVER,
 428                                         GTK_POLICY_AUTOMATIC);
 429         gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_SHADOW_IN);
 430 /*      gtk_container_add (GTK_CONTAINER (priv->scrolled_window), priv->text_view); */
 431
 432         gtk_box_pack_start (GTK_BOX (instance), priv->scrolled_window, TRUE, TRUE, 0);
 433 /*      gtk_box_pack_start (GTK_BOX (instance), priv->text_view, TRUE, TRUE, 0); */
 434 #endif
 435         abook_align = gtk_alignment_new (0.0, 0.0, 1.0, 1.0);
 436         gtk_alignment_set_padding (GTK_ALIGNMENT (abook_align), 0, 0, MODEST_MARGIN_DEFAULT, 0);
 437         gtk_container_add (GTK_CONTAINER (abook_align), priv->abook_button);
 438         gtk_box_pack_end (GTK_BOX (instance), abook_align, FALSE, FALSE, 0);
 439
 440         gtk_text_view_set_accepts_tab (GTK_TEXT_VIEW (priv->text_view), FALSE);
 441         gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (priv->text_view), TRUE);
 442         gtk_text_view_set_editable (GTK_TEXT_VIEW (priv->text_view), TRUE);
 443
 444         gtk_text_view_set_justification (GTK_TEXT_VIEW (priv->text_view), GTK_JUSTIFY_LEFT);
 445         gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (priv->text_view), GTK_WRAP_CHAR);
 446
 447         gtk_widget_set_size_request (priv->text_view, 75, -1);
 448
 449 #ifdef MODEST_TOOLKIT_HILDON2
 450         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 451 #else
 452         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 453 #endif
 454         g_signal_connect (G_OBJECT (priv->abook_button), "clicked", G_CALLBACK (modest_recpt_editor_on_abook_clicked), instance);
 455         g_signal_connect (G_OBJECT (priv->text_view), "key-press-event", G_CALLBACK (modest_recpt_editor_on_key_press_event), instance);
 456         g_signal_connect (G_OBJECT (priv->text_view), "focus-in-event", G_CALLBACK (modest_recpt_editor_on_focus_in), instance);
 457         g_signal_connect (G_OBJECT (buffer), "insert-text",
 458                           G_CALLBACK (modest_recpt_editor_on_insert_text),
 459                           instance);
 460         g_signal_connect_after (G_OBJECT (buffer), "insert-text",
 461                                 G_CALLBACK (modest_recpt_editor_on_insert_text_after),
 462                                 instance);
 463
 464         priv->on_mark_set_handler = g_signal_connect (G_OBJECT (buffer), "mark-set",
 465                                                       G_CALLBACK (modest_recpt_editor_on_mark_set),
 466                                                       instance);
 467
 468         return;
 469 }
 470
 471 void
 472 modest_recpt_editor_set_field_size_group (ModestRecptEditor *recpt_editor, GtkSizeGroup *size_group)
 473 {
 474         ModestRecptEditorPrivate *priv;
 475
 476         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 477         g_return_if_fail (GTK_IS_SIZE_GROUP (size_group));
 478         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 479
 480 #ifdef MODEST_TOOLKIT_HILDON2
 481         gtk_size_group_add_widget (size_group, priv->text_view);
 482 #else
 483         gtk_size_group_add_widget (size_group, priv->scrolled_window);
 484 #endif
 485 }
 486
 487 GtkTextBuffer *
 488 modest_recpt_editor_get_buffer (ModestRecptEditor *recpt_editor)
 489 {
 490         ModestRecptEditorPrivate *priv;
 491
 492         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), NULL);
 493         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 494
 495 #ifdef MODEST_TOOLKIT_HILDON2
 496         return hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 497 #else
 498         return gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 499 #endif
 500 }
 501
 502 static void
 503 modest_recpt_editor_on_abook_clicked (GtkButton *button, ModestRecptEditor *editor)
 504 {
 505         g_return_if_fail (MODEST_IS_RECPT_EDITOR (editor));
 506
 507         g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
 508 }
 509
 510 static void
 511 modest_recpt_editor_on_mark_set (GtkTextBuffer *buffer,
 512                                  GtkTextIter *iter,
 513                                  GtkTextMark *mark,
 514                                  ModestRecptEditor *recpt_editor)
 515 {
 516         ModestRecptEditorPrivate *priv;
 517         GtkTextIter insert_iter, selection_iter;
 518         GtkTextMark *selection_bound;
 519         GtkTextMark *insert;
 520         GtkTextTag *tag;
 521         gboolean selection_changed = FALSE;
 522         gboolean select_to_left;
 523
 524         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 525
 526         buffer = modest_recpt_editor_get_buffer (recpt_editor);
 527         selection_bound = gtk_text_buffer_get_selection_bound (buffer);
 528         insert = gtk_text_buffer_get_insert (buffer);
 529
 530         if (mark != selection_bound && mark != insert)
 531                 return;
 532
 533         gtk_text_buffer_get_iter_at_mark (buffer, &insert_iter, insert);
 534         gtk_text_buffer_get_iter_at_mark (buffer, &selection_iter, selection_bound);
 535
 536         select_to_left = gtk_text_iter_get_offset (&selection_iter) > gtk_text_iter_get_offset (&insert_iter);
 537
 538         tag = iter_has_recipient (&insert_iter);
 539         if (tag) {
 540                 if (select_to_left) {
 541                         if (!gtk_text_iter_begins_tag (&insert_iter, tag)) {
 542                                 gtk_text_iter_backward_to_tag_toggle (&insert_iter, tag);
 543                                 selection_changed = TRUE;
 544                         }
 545                 } else {
 546                         gtk_text_iter_forward_to_tag_toggle (&insert_iter, tag);
 547                         selection_changed = TRUE;
 548                 }
 549         }
 550
 551         tag = iter_has_recipient (&selection_iter);
 552         if (tag != NULL) {
 553                 if (select_to_left) {
 554                         gtk_text_iter_forward_to_tag_toggle (&selection_iter, tag);
 555                         selection_changed = TRUE;
 556                 } else {
 557                         if (!gtk_text_iter_begins_tag (&selection_iter, tag)) {
 558                                 gtk_text_iter_backward_to_tag_toggle (&selection_iter, tag);
 559                                 selection_changed = TRUE;
 560                         }
 561                 }
 562         }
 563
 564         if (selection_changed) {
 565                 /* We block this signal handler in order to prevent a
 566                    stack overflow caused by recursive calls to this
 567                    handler as the select_range call could issue a
 568                    "mark-set" signal */
 569                 g_signal_handler_block (buffer, priv->on_mark_set_handler);
 570                 gtk_text_buffer_select_range (buffer, &insert_iter, &selection_iter);
 571                 g_signal_handler_unblock (buffer, priv->on_mark_set_handler);
 572         }
 573 }
 574
 575 static gboolean
 576 modest_recpt_editor_on_focus_in (GtkTextView *text_view,
 577                                  GdkEventFocus *event,
 578                                  ModestRecptEditor *editor)
 579 {
 580         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 581         gtk_text_view_place_cursor_onscreen (GTK_TEXT_VIEW (priv->text_view));
 582
 583         return FALSE;
 584 }
 585
 586 static gboolean
 587 is_valid_insert (const gchar *text, gint len)
 588 {
 589         gunichar c;
 590         gunichar next_c;
 591         gint i= 0;
 592         gboolean quoted = FALSE;
 593         const gchar *current, *next_current;
 594         if (text == NULL)
 595                 return TRUE;
 596         current = text;
 597
 598         while (((len == -1)||(i < len)) && (*current != '\0')) {
 599                 c = g_utf8_get_char (current);
 600                 next_current = g_utf8_next_char (current);
 601                 if (next_current && *next_current != '\0')
 602                         next_c = g_utf8_get_char (g_utf8_next_char (current));
 603                 else
 604                         next_c = 0;
 605                 if (!quoted && ((c == g_utf8_get_char(",") || c == g_utf8_get_char (";")))) {
 606                         if ((next_c != 0) && (next_c != g_utf8_get_char ("\n")))
 607                                 return FALSE;
 608                         else {
 609                           current = g_utf8_next_char (next_current);
 610                           continue;
 611                         }
 612                 }
 613                 if (c == 0x2022 || c == 0xfffc ||
 614                     c == g_utf8_get_char ("\n") ||
 615                     c == g_utf8_get_char ("\t"))
 616                         return FALSE;
 617                 if (c == g_utf8_get_char ("\""))
 618                         quoted = !quoted;
 619                 current = g_utf8_next_char (current);
 620                 i = current - text;
 621         }
 622         return TRUE;
 623 }
 624
 625 static gchar *
 626 create_valid_text (const gchar *text, gint len)
 627 {
 628         gunichar c;
 629         gunichar next_c;
 630         gint i= 0;
 631         GString *str;
 632         gboolean quoted = FALSE;
 633         const gchar *current, *next_current;
 634
 635         if (text == NULL)
 636                 return NULL;
 637
 638         str = g_string_new ("");
 639         current = text;
 640
 641         while (((len == -1)||(i < len)) && (*current != '\0')) {
 642                 c = g_utf8_get_char (current);
 643                 next_current = g_utf8_next_char (current);
 644                 if (next_current && *next_current != '\0')
 645                         next_c = g_utf8_get_char (g_utf8_next_char (current));
 646                 else
 647                         next_c = 0;
 648                 if (c != 0x2022 && c != 0xfffc &&
 649                     c != g_utf8_get_char ("\n") &&
 650                     c != g_utf8_get_char ("\t"))
 651                         str = g_string_append_unichar (str, c);
 652                 if (!quoted && ((c == g_utf8_get_char(",") || c == g_utf8_get_char (";")))) {
 653                         if ((next_c != 0) && (next_c != g_utf8_get_char ("\n"))) {
 654                                 gchar *last_separator = MAX (g_utf8_strrchr(str->str, -1, g_utf8_get_char (",")),
 655                                                              g_utf8_strrchr(str->str, -1, g_utf8_get_char (";")));
 656                                 if (last_separator) {
 657                                         gchar *last_at = g_utf8_strrchr (str->str, -1, g_utf8_get_char ("@"));
 658                                         if (last_at) {
 659                                                 if (last_at < last_separator)
 660                                                         str = g_string_append_c (str, '\n');
 661                                         }
 662                                 } else {
 663                                         if (g_utf8_strrchr (str->str, -1, g_utf8_get_char ("@")))
 664                                                 str = g_string_append_c (str, '\n');
 665                                 }
 666                         }
 667                 }
 668                 if (c == g_utf8_get_char ("\""))
 669                         quoted = !quoted;
 670                 current = g_utf8_next_char (current);
 671                 i = current - text;
 672         }
 673
 674         return g_string_free (str, FALSE);
 675 }
 676
 677 /* Called after the default handler, and thus after the text was
 678    inserted. We use this to insert a break after a ',' or a ';'*/
 679 static void
 680 modest_recpt_editor_on_insert_text_after (GtkTextBuffer *buffer,
 681                                           GtkTextIter *location,
 682                                           gchar *text,
 683                                           gint len,
 684                                           ModestRecptEditor *editor)
 685 {
 686         GtkTextIter prev;
 687         gunichar prev_char;
 688         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 689
 690         prev = *location;
 691         /* We must go backwards twice as location points to the next
 692            valid position to insert text */
 693         if (!gtk_text_iter_backward_chars (&prev, 2))
 694                 return;
 695
 696         prev_char = gtk_text_iter_get_char (&prev);
 697         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 698         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text_after, editor);
 699         if ((prev_char == ';'||prev_char == ',')&&(!quote_opened(&prev))) {
 700                 GtkTextMark *insert;
 701                 gtk_text_iter_forward_char (&prev);
 702                 gtk_text_buffer_insert (buffer, &prev, "\n",-1);
 703                 insert = gtk_text_buffer_get_insert (buffer);
 704                 gtk_text_view_scroll_to_iter (GTK_TEXT_VIEW (priv->text_view), &prev, 0.0,TRUE, 0.0, 1.0);
 705         }
 706         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 707         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text_after, editor);
 708 }
 709
 710 /* Called before the default handler, we use it to validate the inputs */
 711 static void
 712 modest_recpt_editor_on_insert_text (GtkTextBuffer *buffer,
 713                                     GtkTextIter *location,
 714                                     gchar *text,
 715                                     gint len,
 716                                     ModestRecptEditor *editor)
 717 {
 718         if (len > 1024)
 719                 len = 1024;
 720
 721         if (!is_valid_insert (text, len)) {
 722                 gchar *new_text = create_valid_text (text, len);
 723                 g_signal_stop_emission_by_name (G_OBJECT (buffer), "insert-text");
 724                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 725                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text_after, editor);
 726                 gtk_text_buffer_insert (buffer, location, new_text, -1);
 727                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 728                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text_after, editor);
 729                 g_free (new_text);
 730                 return;
 731         }
 732
 733         if (iter_has_recipient (location)) {
 734                 gtk_text_buffer_get_end_iter (buffer, location);
 735                 gtk_text_buffer_place_cursor (buffer, location);
 736         }
 737 }
 738
 739 static GtkTextTag *
 740 iter_has_recipient (GtkTextIter *iter)
 741 {
 742         GSList *tags, *node;
 743         GtkTextTag *result = NULL;
 744
 745         tags = gtk_text_iter_get_tags (iter);
 746
 747         for (node = tags; node != NULL; node = g_slist_next (node)) {
 748                 GtkTextTag *tag = GTK_TEXT_TAG (node->data);
 749
 750                 if (g_object_get_data (G_OBJECT (tag), "recipient-tag-id")) {
 751                         result = tag;
 752                         break;
 753                 }
 754         }
 755         g_slist_free (tags);
 756         return result;
 757 }
 758
 759 static GtkTextTag *
 760 prev_iter_has_recipient (GtkTextIter *iter)
 761 {
 762         GtkTextIter prev;
 763
 764         prev = *iter;
 765         gtk_text_iter_backward_char (&prev);
 766         return iter_has_recipient (&prev);
 767 }
 768
 769 /* static GtkTextTag * */
 770 /* next_iter_has_recipient (GtkTextIter *iter) */
 771 /* { */
 772 /*      GtkTextIter next; */
 773
 774 /*      next = *iter; */
 775 /*      return iter_has_recipient (&next); */
 776 /* } */
 777
 778 static gunichar
 779 iter_previous_char (GtkTextIter *iter)
 780 {
 781         GtkTextIter prev;
 782
 783         prev = *iter;
 784         gtk_text_iter_backward_char (&prev);
 785         return gtk_text_iter_get_char (&prev);
 786 }
 787
 788 /* static gunichar  */
 789 /* iter_next_char (GtkTextIter *iter) */
 790 /* { */
 791 /*      GtkTextIter next; */
 792
 793 /*      next = *iter; */
 794 /*      gtk_text_iter_forward_char (&next); */
 795 /*      return gtk_text_iter_get_char (&next); */
 796 /* } */
 797
 798 static void
 799 select_tag_of_iter (GtkTextIter *iter, GtkTextTag *tag, gboolean grow, gboolean left_not_right)
 800 {
 801         GtkTextIter start, end;
 802
 803         start = *iter;
 804         if (!gtk_text_iter_begins_tag (&start, tag)) {
 805                 gtk_text_iter_backward_to_tag_toggle (&start, tag);
 806         } else {
 807                 if (!left_not_right) {
 808                         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &start, &start);
 809                         return;
 810                 }
 811         }
 812         end = *iter;
 813         if (!gtk_text_iter_ends_tag (&end, tag)) {
 814                 gtk_text_iter_forward_to_tag_toggle (&end, tag);
 815         } else {
 816                 if (left_not_right) {
 817                         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &end, &end);
 818                         return;
 819                 }
 820         }
 821         if (grow) {
 822                 if (left_not_right)
 823                         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &start, &end);
 824                 else
 825                         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &end, &start);
 826         } else {
 827                 if (left_not_right)
 828                         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &start, &start);
 829                 else
 830                         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &end, &end);
 831         }
 832         *iter = left_not_right?start:end;
 833 }
 834
 835 static gboolean
 836 quote_opened (GtkTextIter *iter)
 837 {
 838         GtkTextIter start;
 839         GtkTextBuffer *buffer;
 840         gboolean opened = FALSE;
 841
 842         buffer = gtk_text_iter_get_buffer (iter);
 843         gtk_text_buffer_get_start_iter (buffer, &start);
 844
 845         while (!gtk_text_iter_equal (&start, iter)) {
 846                 gunichar current_char = gtk_text_iter_get_char (&start);
 847                 if (current_char == '"')
 848                         opened = !opened;
 849                 else if (current_char == '\\')
 850                         gtk_text_iter_forward_char (&start);
 851                 if (!gtk_text_iter_equal (&start, iter))
 852                         gtk_text_iter_forward_char (&start);
 853
 854         }
 855         return opened;
 856
 857 }
 858
 859
 860 static gboolean
 861 modest_recpt_editor_on_key_press_event (GtkTextView *text_view,
 862                                           GdkEventKey *key,
 863                                           ModestRecptEditor *editor)
 864 {
 865         GtkTextMark *insert;
 866         GtkTextMark *selection;
 867         GtkTextBuffer * buffer;
 868         GtkTextIter location, selection_loc;
 869         GtkTextTag *tag;
 870         gboolean shift_pressed;
 871         gboolean select_to_left;
 872         gboolean has_selection;
 873
 874 #ifdef MODEST_TOOLKIT_HILDON2
 875         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (text_view));
 876 #else
 877         buffer = gtk_text_view_get_buffer (text_view);
 878 #endif
 879         insert = gtk_text_buffer_get_insert (buffer);
 880         selection = gtk_text_buffer_get_selection_bound (buffer);
 881
 882         /* cases to cover:
 883          *    * cursor is on resolved recipient:
 884          *        - right should go to first character after the recipient (usually ; or ,)
 885          *        - left should fo to the first character before the recipient
 886          *        - return should run check names on the recipient.
 887          *    * cursor is just after a recipient:
 888          *        - right should go to the next character. If it's a recipient, should select
 889          *          it
 890          *        - left should go to the previous character. If it's a recipient, should go
 891          *          to the first character of the recipient, and select it.
 892          *    * cursor is on arbitrary text:
 893          *        - return should add a ; and go to the next line
 894          *        - left or right standard ones.
 895          *    * cursor is after a \n:
 896          *        - left should go to the character before the \n (as if \n was not a character)
 897          *    * cursor is before a \n:
 898          *        - right should go to the character after the \n
 899          */
 900
 901         gtk_text_buffer_get_iter_at_mark (buffer, &location, insert);
 902         gtk_text_buffer_get_iter_at_mark (buffer, &selection_loc, selection);
 903
 904         select_to_left = gtk_text_iter_get_offset (&selection_loc) > gtk_text_iter_get_offset (&location);
 905         has_selection = gtk_text_iter_get_offset (&selection_loc) != gtk_text_iter_get_offset (&location);
 906         shift_pressed = key->state & GDK_SHIFT_MASK;
 907
 908         switch (key->keyval) {
 909         case GDK_Left:
 910         case GDK_KP_Left:
 911         {
 912                 gboolean cursor_ready = FALSE;
 913                 GtkTextIter prev_location;
 914
 915                 prev_location = location;
 916                 while (!cursor_ready) {
 917                         if (iter_previous_char (&location) == '\n') {
 918                                 gtk_text_iter_backward_char (&location);
 919                         } else {
 920                                 cursor_ready = TRUE;
 921                         }
 922                 }
 923                 tag = iter_has_recipient (&location);
 924                 if (has_selection && gtk_text_iter_ends_tag (&prev_location, tag)) {
 925                         gtk_text_iter_backward_to_tag_toggle (&prev_location, tag);
 926                         location = prev_location;
 927                         cursor_ready = FALSE;
 928                         while (!cursor_ready) {
 929                                 if (iter_previous_char (&location) == '\n') {
 930                                         gtk_text_iter_backward_char (&location);
 931                                 } else {
 932                                         cursor_ready = TRUE;
 933                                 }
 934                         }
 935                 }
 936
 937                 if ((tag != NULL)&& (gtk_text_iter_is_start (&location) || !(gtk_text_iter_begins_tag (&location, tag)))) {
 938                         if (has_selection) {
 939                                 gtk_text_buffer_select_range (buffer, &location, &location);
 940                         } else {
 941                                 select_tag_of_iter (&location, tag, select_to_left, TRUE);
 942                         }
 943                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 944
 945                         if (shift_pressed) {
 946                                 gtk_text_buffer_select_range (buffer, &location, &selection_loc);
 947                         }
 948                         return TRUE;
 949                 }
 950                 gtk_text_iter_backward_char (&location);
 951                 tag = iter_has_recipient (&location);
 952                 if (tag != NULL)
 953                         select_tag_of_iter (&location, tag, select_to_left, TRUE);
 954                 else {
 955                         gtk_text_buffer_place_cursor (buffer, &location);
 956                 }
 957                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 958
 959                 if (shift_pressed) {
 960                         gtk_text_buffer_select_range (buffer, &location, &selection_loc);
 961                 }
 962
 963                 return TRUE;
 964         }
 965         break;
 966         case GDK_Right:
 967         case GDK_KP_Right:
 968         {
 969                 gboolean cursor_moved = FALSE;
 970
 971                 tag = iter_has_recipient (&location);
 972                 if ((tag != NULL)&&(!gtk_text_iter_ends_tag (&location, tag))) {
 973                         gtk_text_iter_forward_to_tag_toggle (&location, tag);
 974                         while (gtk_text_iter_get_char (&location) == '\n')
 975                                 gtk_text_iter_forward_char (&location);
 976                         gtk_text_buffer_place_cursor (buffer, &location);
 977                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 978
 979                         if (shift_pressed) {
 980                                 gtk_text_buffer_select_range (buffer, &location, &selection_loc);
 981                         }
 982                         return TRUE;
 983                 }
 984
 985                 while (gtk_text_iter_get_char (&location) == '\n') {
 986                         gtk_text_iter_forward_char (&location);
 987                         cursor_moved = TRUE;
 988                 }
 989                 if (!cursor_moved)
 990                         gtk_text_iter_forward_char (&location);
 991                 while (gtk_text_iter_get_char (&location) == '\n') {
 992                         gtk_text_iter_forward_char (&location);
 993                         cursor_moved = TRUE;
 994                 }
 995
 996                 tag = iter_has_recipient (&location);
 997                 if (tag != NULL)
 998                         select_tag_of_iter (&location, tag, !select_to_left, FALSE);
 999                 else
1000                         gtk_text_buffer_place_cursor (buffer, &location);
1001                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
1002
1003                 if (shift_pressed) {
1004                         gtk_text_buffer_select_range (buffer, &location, &selection_loc);
1005                 }
1006                 return TRUE;
1007         }
1008         break;
1009         case GDK_Return:
1010         case GDK_KP_Enter:
1011         {
1012                 gint insert_offset, selection_offset;
1013                 insert_offset = gtk_text_iter_get_offset (&location);
1014                 selection_offset = gtk_text_iter_get_offset (&selection_loc);
1015                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
1016                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text_after, editor);
1017                 if (selection_offset > insert_offset)
1018                         location = selection_loc;
1019                 tag = iter_has_recipient (&location);
1020                 if (tag != NULL) {
1021                         gtk_text_buffer_get_end_iter (buffer, &location);
1022                         gtk_text_buffer_place_cursor (buffer, &location);
1023                         if ((iter_previous_char (&location) != ';')&&(iter_previous_char (&location) != ','))
1024                                 gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
1025                         gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
1026                 } else {
1027                         gunichar prev_char = iter_previous_char (&location);
1028                         if ((gtk_text_iter_is_start (&location))||(prev_char == '\n')
1029                             ||(prev_char == ';')||(prev_char == ','))
1030                                 g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
1031                         else {
1032                                 if ((prev_char != ';') && (prev_char != ','))
1033                                         gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
1034                                 gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
1035                         }
1036                 }
1037                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
1038                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text_after, editor);
1039                 return TRUE;
1040         }
1041         break;
1042         case GDK_BackSpace:
1043         {
1044                 #if GTK_CHECK_VERSION(2, 10, 0) /* gtk_text_buffer_get_has_selection is only available in GTK+ 2.10 */
1045                 if (gtk_text_buffer_get_has_selection (buffer)) {
1046                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
1047                         return TRUE;
1048                 }
1049                 #else
1050                 if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
1051                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
1052                         return TRUE;
1053                 }
1054                 #endif
1055
1056                 tag = prev_iter_has_recipient (&location);
1057                 if (tag != NULL) {
1058                         GtkTextIter iter_in_tag;
1059                         iter_in_tag = location;
1060                         gtk_text_iter_backward_char (&iter_in_tag);
1061                         select_tag_of_iter (&iter_in_tag, tag, FALSE, TRUE);
1062                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
1063                         return TRUE;
1064                 }
1065                 return FALSE;
1066         }
1067         break;
1068         default:
1069                 return FALSE;
1070         }
1071 }
1072
1073 static void _discard_chars (GtkTextIter *start, GtkTextIter *end)
1074 {
1075         while (!gtk_text_iter_equal (start, end)) {
1076                 gunichar c = gtk_text_iter_get_char (start);
1077
1078                 if (c == '\n' || c == ';' || c == ',' || c == ' ') {
1079                         if (!gtk_text_iter_forward_char (start))
1080                                 break;
1081                 } else {
1082                         break;
1083                 }
1084
1085         }
1086 }
1087
1088 /* NOTE: before calling this function be sure that both
1089    modest_recpt_editor_on_insert_text and
1090    modest_recpt_editor_on_insert_text_after won't be triggered during
1091    the execution of the procedure. You'll have to block both signal
1092    handlers otherwise you'll get an infinite loop and most likely a
1093    SIGSEV caused by a stack overflow */
1094 static void
1095 modest_recpt_editor_add_tags (ModestRecptEditor *editor,
1096                               const gchar * recipient_id)
1097 {
1098
1099         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
1100 #ifdef MODEST_TOOLKIT_HILDON2
1101         GtkTextBuffer *buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
1102 #else
1103         GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
1104 #endif
1105         GtkTextTag *tag;
1106         GtkTextIter start, end;
1107         gchar * buffer_contents;
1108         GtkTextIter start_match, end_match;
1109
1110         /* This would move the cursor to the end of the buffer
1111            containing new line character. */
1112         gtk_text_buffer_get_bounds (buffer, &start, &end);
1113         buffer_contents = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
1114         gtk_text_buffer_set_text(buffer,buffer_contents,strlen(buffer_contents));
1115
1116         tag = gtk_text_buffer_create_tag (buffer, NULL,
1117                                           "underline", PANGO_UNDERLINE_SINGLE,
1118                                           "wrap-mode", GTK_WRAP_NONE,
1119                                           "editable", TRUE, NULL);
1120
1121         g_object_set_data (G_OBJECT (tag), "recipient-tag-id", GINT_TO_POINTER (RECIPIENT_TAG_ID));
1122         g_object_set_data_full (G_OBJECT (tag), "recipient-id", g_strdup (recipient_id), (GDestroyNotify) g_free);
1123
1124         /* Formatting the buffer content by applying tag */
1125         gtk_text_buffer_get_bounds (buffer, &start, &end);
1126         _discard_chars (&start, &end);
1127         while (gtk_text_iter_forward_search(&start, ";",
1128                                             GTK_TEXT_SEARCH_TEXT_ONLY |
1129                                             GTK_TEXT_SEARCH_VISIBLE_ONLY,
1130                                             &start_match, &end_match, &end )) {
1131                 int offset;
1132
1133                 gtk_text_buffer_apply_tag(buffer, tag, &start, &start_match);
1134                 offset = gtk_text_iter_get_offset (&end_match);
1135                 gtk_text_buffer_get_iter_at_offset(buffer, &start, offset);
1136                 _discard_chars (&start, &end);
1137         }
1138         g_free (buffer_contents);
1139 }
1140
1141 void
1142 modest_recpt_editor_grab_focus (ModestRecptEditor *recpt_editor)
1143 {
1144         ModestRecptEditorPrivate *priv;
1145
1146         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
1147         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
1148
1149         if (GTK_WIDGET_VISIBLE (recpt_editor)) {
1150                 gtk_widget_grab_focus (priv->text_view);
1151         }
1152 }
1153
1154 gboolean
1155 modest_recpt_editor_has_focus (ModestRecptEditor *recpt_editor)
1156 {
1157         ModestRecptEditorPrivate *priv;
1158
1159         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), FALSE);
1160         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
1161
1162         return GTK_WIDGET_VISIBLE (priv->text_view) &&
1163                 gtk_widget_is_focus (priv->text_view);
1164 }
1165
1166 void
1167 modest_recpt_editor_set_show_abook_button (ModestRecptEditor *recpt_editor, gboolean show)
1168 {
1169         ModestRecptEditorPrivate *priv;
1170
1171         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
1172         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
1173
1174         priv->show_abook = show;
1175
1176         if (show)
1177                 gtk_widget_show (priv->abook_button);
1178         else
1179                 gtk_widget_hide (priv->abook_button);
1180 }
1181
1182 gboolean
1183 modest_recpt_editor_get_show_abook_button (ModestRecptEditor *recpt_editor, gboolean show)
1184 {
1185         ModestRecptEditorPrivate *priv;
1186
1187         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), FALSE);
1188         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
1189
1190         return priv->show_abook;
1191
1192 }
1193
1194 static void
1195 modest_recpt_editor_finalize (GObject *object)
1196 {
1197         ModestRecptEditorPrivate *priv;
1198         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (object);
1199
1200         if (g_signal_handler_is_connected (object, priv->on_mark_set_handler))
1201                 g_signal_handler_disconnect (object, priv->on_mark_set_handler);
1202         priv->on_mark_set_handler = 0;
1203
1204         if (priv->recipients) {
1205                 g_free (priv->recipients);
1206                 priv->recipients = NULL;
1207         }
1208
1209         (*parent_class->finalize) (object);
1210
1211         return;
1212 }
1213
1214 static void
1215 modest_recpt_editor_class_init (ModestRecptEditorClass *klass)
1216 {
1217         GObjectClass *object_class;
1218
1219         parent_class = g_type_class_peek_parent (klass);
1220         object_class = (GObjectClass*) klass;
1221
1222         object_class->finalize = modest_recpt_editor_finalize;
1223
1224         g_type_class_add_private (object_class, sizeof (ModestRecptEditorPrivate));
1225
1226         signals[OPEN_ADDRESSBOOK_SIGNAL] =
1227                 g_signal_new ("open-addressbook",
1228                               G_TYPE_FROM_CLASS (object_class),
1229                               G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
1230                               G_STRUCT_OFFSET (ModestRecptEditorClass, open_addressbook),
1231                               NULL, NULL,
1232                               g_cclosure_marshal_VOID__VOID,
1233                               G_TYPE_NONE, 0);
1234
1235         return;
1236 }
1237
1238 GType
1239 modest_recpt_editor_get_type (void)
1240 {
1241         static GType type = 0;
1242
1243         if (G_UNLIKELY(type == 0))
1244         {
1245                 static const GTypeInfo info =
1246                 {
1247                   sizeof (ModestRecptEditorClass),
1248                   NULL,   /* base_init */
1249                   NULL,   /* base_finalize */
1250                   (GClassInitFunc) modest_recpt_editor_class_init,   /* class_init */
1251                   NULL,   /* class_finalize */
1252                   NULL,   /* class_data */
1253                   sizeof (ModestRecptEditor),
1254                   0,      /* n_preallocs */
1255                   modest_recpt_editor_instance_init    /* instance_init */
1256                 };
1257
1258                 type = g_type_register_static (GTK_TYPE_HBOX,
1259                         "ModestRecptEditor",
1260                         &info, 0);
1261
1262         }
1263
1264         return type;
1265 }