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/gtk.h>
  35
  36 #include <modest-text-utils.h>
  37 #include <modest-recpt-editor.h>
  38 #include <modest-scroll-text.h>
  39 #include <pango/pango-attributes.h>
  40 #include <string.h>
  41 #include <gdk/gdkkeysyms.h>
  42 #include <gtk/gtk.h>
  43 #include <modest-ui-constants.h>
  44
  45 /* FIXNE: we should have no maemo-deps in widgets/ */
  46 #ifndef MODEST_TOOLKIT_GTK
  47 #include "modest-hildon-includes.h"
  48 #endif /*!MODEST_TOOLKIT_GTK*/
  49
  50 #define RECPT_BUTTON_WIDTH_HILDON2 118
  51
  52
  53 static GObjectClass *parent_class = NULL;
  54
  55 #define RECIPIENT_TAG_ID "recpt-id"
  56
  57 /* signals */
  58 enum {
  59         OPEN_ADDRESSBOOK_SIGNAL,
  60         LAST_SIGNAL
  61 };
  62
  63 typedef struct _ModestRecptEditorPrivate ModestRecptEditorPrivate;
  64
  65 struct _ModestRecptEditorPrivate
  66 {
  67         GtkWidget *text_view;
  68         GtkWidget *abook_button;
  69         GtkWidget *scrolled_window;
  70         gchar *recipients;
  71         gulong on_mark_set_handler;
  72         gboolean show_abook;
  73 };
  74
  75 #define MODEST_RECPT_EDITOR_GET_PRIVATE(o)      \
  76         (G_TYPE_INSTANCE_GET_PRIVATE ((o), MODEST_TYPE_RECPT_EDITOR, ModestRecptEditorPrivate))
  77
  78 static guint signals[LAST_SIGNAL] = {0};
  79
  80 /* static functions: GObject */
  81 static void modest_recpt_editor_instance_init (GTypeInstance *instance, gpointer g_class);
  82 static void modest_recpt_editor_finalize (GObject *object);
  83 static void modest_recpt_editor_class_init (ModestRecptEditorClass *klass);
  84
  85 /* widget events */
  86 static void modest_recpt_editor_on_abook_clicked (GtkButton *button,
  87                                                   ModestRecptEditor *editor);
  88 static void modest_recpt_editor_add_tags (ModestRecptEditor *editor,
  89                                           const gchar * recipient_id);
  90 static gboolean modest_recpt_editor_on_focus_in (GtkTextView *text_view,
  91                                              GdkEventFocus *event,
  92                                              ModestRecptEditor *editor);
  93 static void modest_recpt_editor_on_mark_set (GtkTextBuffer *buffer,
  94                                              GtkTextIter *iter,
  95                                              GtkTextMark *mark,
  96                                              ModestRecptEditor *editor);
  97 static void modest_recpt_editor_on_insert_text (GtkTextBuffer *buffer,
  98                                                 GtkTextIter *location,
  99                                                 gchar *text,
 100                                                 gint len,
 101                                                 ModestRecptEditor *editor);
 102 static void modest_recpt_editor_on_insert_text_after (GtkTextBuffer *buffer,
 103                                                       GtkTextIter *location,
 104                                                       gchar *text,
 105                                                       gint len,
 106                                                       ModestRecptEditor *editor);
 107 static gboolean modest_recpt_editor_on_key_press_event (GtkTextView *text_view,
 108                                                           GdkEventKey *key,
 109                                                           ModestRecptEditor *editor);
 110 static GtkTextTag *iter_has_recipient (GtkTextIter *iter);
 111 static gunichar iter_previous_char (GtkTextIter *iter);
 112 /* static gunichar iter_next_char (GtkTextIter *iter); */
 113 static GtkTextTag *prev_iter_has_recipient (GtkTextIter *iter);
 114 /* static GtkTextTag *next_iter_has_recipient (GtkTextIter *iter); */
 115 static void select_tag_of_iter (GtkTextIter *iter, GtkTextTag *tag, gboolean grow, gboolean left_not_right);
 116 static gboolean quote_opened (GtkTextIter *iter);
 117 static gboolean is_valid_insert (const gchar *text, gint len);
 118 static gchar *create_valid_text (const gchar *text, gint len);
 119
 120 /**
 121  * modest_recpt_editor_new:
 122  *
 123  * Return value: a new #ModestRecptEditor instance implemented for Gtk+
 124  **/
 125 GtkWidget*
 126 modest_recpt_editor_new (void)
 127 {
 128         ModestRecptEditor *self = g_object_new (MODEST_TYPE_RECPT_EDITOR,
 129                                                 "homogeneous", FALSE,
 130                                                 "spacing", MODEST_MARGIN_NONE,
 131                                                 NULL);
 132
 133         return GTK_WIDGET (self);
 134 }
 135
 136 void
 137 modest_recpt_editor_set_recipients (ModestRecptEditor *recpt_editor, const gchar *recipients)
 138 {
 139         ModestRecptEditorPrivate *priv;
 140         GtkTextBuffer *buffer = NULL;
 141         gchar *valid_recipients = NULL;
 142
 143         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 144         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 145
 146 #ifdef MODEST_TOOLKIT_HILDON2
 147         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 148 #else
 149         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 150 #endif
 151
 152         valid_recipients = create_valid_text (recipients, -1);
 153         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 154         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text_after, recpt_editor);
 155         gtk_text_buffer_set_text (buffer, valid_recipients, -1);
 156         g_free (valid_recipients);
 157         if (GTK_WIDGET_REALIZED (recpt_editor))
 158                 gtk_widget_queue_resize (GTK_WIDGET (recpt_editor));
 159         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 160         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text_after, recpt_editor);
 161
 162 }
 163
 164 void
 165 modest_recpt_editor_add_recipients (ModestRecptEditor *recpt_editor, const gchar *recipients)
 166 {
 167         ModestRecptEditorPrivate *priv;
 168         GtkTextBuffer *buffer = NULL;
 169         GtkTextIter iter;
 170         gchar *string_to_add;
 171
 172         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 173         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 174
 175         if (recipients == NULL)
 176                 return;
 177
 178 #ifdef MODEST_TOOLKIT_HILDON2
 179         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 180 #else
 181         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 182 #endif
 183
 184         if (gtk_text_buffer_get_char_count (buffer) > 0) {
 185                 string_to_add = g_strconcat (";\n", recipients, NULL);
 186         } else {
 187                 string_to_add = g_strdup (recipients);
 188         }
 189
 190         gtk_text_buffer_get_end_iter (buffer, &iter);
 191
 192         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 193         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text_after, recpt_editor);
 194
 195         gtk_text_buffer_insert (buffer, &iter, string_to_add, -1);
 196
 197         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 198         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text_after, recpt_editor);
 199
 200         if (GTK_WIDGET_REALIZED (recpt_editor))
 201                 gtk_widget_queue_resize (GTK_WIDGET (recpt_editor));
 202
 203         g_free (string_to_add);
 204 }
 205
 206 void
 207 modest_recpt_editor_add_resolved_recipient (ModestRecptEditor *recpt_editor, GSList *email_list, const gchar * recipient_id)
 208 {
 209         ModestRecptEditorPrivate *priv;
 210         GtkTextBuffer *buffer = NULL;
 211         GtkTextIter start, end, iter;
 212         GSList *node;
 213         gboolean is_first_recipient = TRUE;
 214
 215         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 216         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 217
 218 #ifdef MODEST_TOOLKIT_HILDON2
 219         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 220 #else
 221         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 222 #endif
 223
 224         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 225         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text_after, recpt_editor);
 226         gtk_text_buffer_get_bounds (buffer, &start, &end);
 227         if (gtk_text_buffer_get_char_count (buffer) > 0) {
 228                 gchar * buffer_contents;
 229
 230                 gtk_text_buffer_get_bounds (buffer, &start, &end);
 231                 buffer_contents = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 232                 g_strstrip (buffer_contents);
 233                 if (!g_str_has_suffix (buffer_contents, "\n")) {
 234                         if (g_str_has_suffix (buffer_contents, ";")||(g_str_has_suffix (buffer_contents, ",")))
 235                                 gtk_text_buffer_insert (buffer, &end, "\n", -1);
 236                         else
 237                                 gtk_text_buffer_insert (buffer, &end, ";\n", -1);
 238                 }
 239                 g_free (buffer_contents);
 240         }
 241
 242         gtk_text_buffer_get_end_iter (buffer, &iter);
 243
 244         for (node = email_list; node != NULL; node = g_slist_next (node)) {
 245                 gchar *recipient = (gchar *) node->data;
 246
 247                 if ((recipient) && (strlen (recipient) != 0)) {
 248
 249                         if (!is_first_recipient)
 250                                 gtk_text_buffer_insert (buffer, &iter, "\n", -1);
 251
 252                         gtk_text_buffer_insert (buffer, &iter, recipient, -1);
 253                         gtk_text_buffer_insert (buffer, &iter, ";", -1);
 254                         is_first_recipient = FALSE;
 255                 }
 256         }
 257         modest_recpt_editor_add_tags (recpt_editor, recipient_id);
 258
 259         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 260         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text_after, recpt_editor);
 261 }
 262
 263 void
 264 modest_recpt_editor_replace_with_resolved_recipient (ModestRecptEditor *recpt_editor,
 265                                                      GtkTextIter *start, GtkTextIter *end,
 266                                                      GSList *email_list, const gchar * recipient_id)
 267 {
 268         GSList *email_lists_list;
 269         GSList *recipient_ids_list;
 270
 271         email_lists_list = g_slist_append (NULL, email_list);
 272         recipient_ids_list = g_slist_append (NULL, (gpointer) recipient_id);
 273
 274         modest_recpt_editor_replace_with_resolved_recipients (recpt_editor, start, end,
 275                                                               email_lists_list, recipient_ids_list);
 276
 277         g_slist_free (email_lists_list);
 278         g_slist_free (recipient_ids_list);
 279
 280 }
 281
 282 void
 283 modest_recpt_editor_replace_with_resolved_recipients (ModestRecptEditor *recpt_editor,
 284                                                      GtkTextIter *start, GtkTextIter *end,
 285                                                      GSList *email_lists_list, GSList * recipient_ids_list)
 286 {
 287         ModestRecptEditorPrivate *priv;
 288         GtkTextBuffer *buffer;
 289         GtkTextTag *tag;
 290         GSList *node;
 291         gboolean is_first_recipient = TRUE;
 292
 293         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 294         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 295
 296 #ifdef MODEST_TOOLKIT_HILDON2
 297         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 298 #else
 299         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 300 #endif
 301         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 302         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text_after, recpt_editor);
 303
 304         gtk_text_buffer_delete (buffer, start, end);
 305
 306         while (email_lists_list && recipient_ids_list) {
 307                 gchar *recipient_id = (gchar *) recipient_ids_list->data;
 308                 GSList *email_list = (GSList *) email_lists_list->data;
 309
 310                 tag = gtk_text_buffer_create_tag (buffer, NULL,
 311                                                   "underline", PANGO_UNDERLINE_SINGLE,
 312                                                   "wrap-mode", GTK_WRAP_NONE,
 313                                                   "editable", TRUE, NULL);
 314
 315                 g_object_set_data (G_OBJECT (tag), "recipient-tag-id", GINT_TO_POINTER (RECIPIENT_TAG_ID));
 316                 g_object_set_data_full (G_OBJECT (tag), "recipient-id", g_strdup (recipient_id), (GDestroyNotify) g_free);
 317
 318                 for (node = email_list; node != NULL; node = g_slist_next (node)) {
 319                         gchar *recipient = (gchar *) node->data;
 320
 321                         if ((recipient) && (strlen (recipient) != 0)) {
 322
 323                                 if (!is_first_recipient || !gtk_text_iter_is_start(start))
 324                                         gtk_text_buffer_insert (buffer, start, "\n", -1);
 325
 326                                 gtk_text_buffer_insert_with_tags (buffer, start, recipient, -1, tag, NULL);
 327
 328                                 if (node->next != NULL)
 329                                         gtk_text_buffer_insert (buffer, start, ";", -1);
 330                                 is_first_recipient = FALSE;
 331                         }
 332                 }
 333
 334                 email_lists_list = g_slist_next (email_lists_list);
 335                 recipient_ids_list = g_slist_next (recipient_ids_list);
 336
 337                 /* Add a separator between lists of emails*/
 338                 if (recipient_ids_list)
 339                         gtk_text_buffer_insert (buffer, start, ";", -1);
 340         }
 341         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 342         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text_after, recpt_editor);
 343
 344 }
 345
 346
 347 const gchar *
 348 modest_recpt_editor_get_recipients (ModestRecptEditor *recpt_editor)
 349 {
 350         ModestRecptEditorPrivate *priv;
 351         GtkTextBuffer *buffer = NULL;
 352         GtkTextIter start, end;
 353
 354         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), NULL);
 355         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 356
 357         if (priv->recipients != NULL) {
 358                 g_free (priv->recipients);
 359                 priv->recipients = NULL;
 360         }
 361
 362 #ifdef MODEST_TOOKIT_HILDON2
 363         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 364 #else
 365         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 366 #endif
 367
 368         gtk_text_buffer_get_start_iter (buffer, &start);
 369         gtk_text_buffer_get_end_iter (buffer, &end);
 370
 371         priv->recipients = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 372
 373         return priv->recipients;
 374
 375 }
 376
 377 static void
 378 modest_recpt_editor_instance_init (GTypeInstance *instance, gpointer g_class)
 379 {
 380         ModestRecptEditorPrivate *priv;
 381         GtkWidget *abook_icon;
 382         GtkWidget *abook_align;
 383         GtkTextBuffer *buffer;
 384
 385         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (instance);
 386
 387         priv->show_abook = TRUE;
 388         priv->abook_button = gtk_button_new ();
 389         gtk_widget_set_no_show_all (GTK_WIDGET (priv->abook_button), TRUE);
 390         gtk_widget_show (priv->abook_button);
 391 #ifdef MODEST_TOOLKIT_HILDON2
 392         gtk_widget_set_size_request (priv->abook_button, RECPT_BUTTON_WIDTH_HILDON2, -1);
 393 #else
 394         gtk_button_set_relief (GTK_BUTTON (priv->abook_button), GTK_RELIEF_NONE);
 395 #endif
 396         gtk_button_set_focus_on_click (GTK_BUTTON (priv->abook_button), FALSE);
 397         GTK_WIDGET_UNSET_FLAGS (priv->abook_button, GTK_CAN_FOCUS);
 398         gtk_button_set_alignment (GTK_BUTTON (priv->abook_button), 0.5, 0.5);
 399 #ifdef MODEST_TOOLKIT_HILDON2
 400         abook_icon = gtk_image_new_from_icon_name ("general_contacts", HILDON_ICON_SIZE_FINGER);
 401 #else
 402         abook_icon = gtk_image_new_from_icon_name ("qgn_list_addressbook", GTK_ICON_SIZE_BUTTON);
 403 #endif
 404         gtk_container_add (GTK_CONTAINER (priv->abook_button), abook_icon);
 405
 406 #ifdef MODEST_TOOLKIT_HILDON2
 407         priv->text_view = hildon_text_view_new ();
 408 #else
 409         priv->text_view = gtk_text_view_new ();
 410 #endif
 411         /* Auto-capitalization is the default, so let's turn it off: */
 412 #ifdef MAEMO_CHANGES
 413         hildon_gtk_text_view_set_input_mode (GTK_TEXT_VIEW (priv->text_view),
 414                 HILDON_GTK_INPUT_MODE_FULL);
 415 #endif
 416
 417         priv->recipients = NULL;
 418
 419 #ifdef MODEST_TOOLKIT_HILDON2
 420         priv->scrolled_window = NULL;
 421         gtk_box_pack_start (GTK_BOX (instance), priv->text_view, TRUE, TRUE, 0);
 422 #else
 423         priv->scrolled_window = modest_scroll_text_new (GTK_TEXT_VIEW (priv->text_view), 1024);
 424         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_POLICY_NEVER,
 425                                         GTK_POLICY_AUTOMATIC);
 426         gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_SHADOW_IN);
 427 /*      gtk_container_add (GTK_CONTAINER (priv->scrolled_window), priv->text_view); */
 428
 429         gtk_box_pack_start (GTK_BOX (instance), priv->scrolled_window, TRUE, TRUE, 0);
 430 /*      gtk_box_pack_start (GTK_BOX (instance), priv->text_view, TRUE, TRUE, 0); */
 431 #endif
 432         abook_align = gtk_alignment_new (0.0, 0.0, 1.0, 1.0);
 433         gtk_alignment_set_padding (GTK_ALIGNMENT (abook_align), 0, 0, MODEST_MARGIN_DEFAULT, 0);
 434         gtk_container_add (GTK_CONTAINER (abook_align), priv->abook_button);
 435         gtk_box_pack_end (GTK_BOX (instance), abook_align, FALSE, FALSE, 0);
 436
 437         gtk_text_view_set_accepts_tab (GTK_TEXT_VIEW (priv->text_view), FALSE);
 438         gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (priv->text_view), TRUE);
 439         gtk_text_view_set_editable (GTK_TEXT_VIEW (priv->text_view), TRUE);
 440
 441         gtk_text_view_set_justification (GTK_TEXT_VIEW (priv->text_view), GTK_JUSTIFY_LEFT);
 442         gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (priv->text_view), GTK_WRAP_CHAR);
 443
 444         gtk_widget_set_size_request (priv->text_view, 75, -1);
 445
 446 #ifdef MODEST_TOOLKIT_HILDON2
 447         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 448 #else
 449         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 450 #endif
 451         g_signal_connect (G_OBJECT (priv->abook_button), "clicked", G_CALLBACK (modest_recpt_editor_on_abook_clicked), instance);
 452         g_signal_connect (G_OBJECT (priv->text_view), "key-press-event", G_CALLBACK (modest_recpt_editor_on_key_press_event), instance);
 453         g_signal_connect (G_OBJECT (priv->text_view), "focus-in-event", G_CALLBACK (modest_recpt_editor_on_focus_in), instance);
 454         g_signal_connect (G_OBJECT (buffer), "insert-text",
 455                           G_CALLBACK (modest_recpt_editor_on_insert_text),
 456                           instance);
 457         g_signal_connect_after (G_OBJECT (buffer), "insert-text",
 458                                 G_CALLBACK (modest_recpt_editor_on_insert_text_after),
 459                                 instance);
 460
 461         priv->on_mark_set_handler = g_signal_connect (G_OBJECT (buffer), "mark-set",
 462                                                       G_CALLBACK (modest_recpt_editor_on_mark_set),
 463                                                       instance);
 464
 465         return;
 466 }
 467
 468 void
 469 modest_recpt_editor_set_field_size_group (ModestRecptEditor *recpt_editor, GtkSizeGroup *size_group)
 470 {
 471         ModestRecptEditorPrivate *priv;
 472
 473         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 474         g_return_if_fail (GTK_IS_SIZE_GROUP (size_group));
 475         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 476
 477 #ifdef MODEST_TOOLKIT_HILDON2
 478         gtk_size_group_add_widget (size_group, priv->text_view);
 479 #else
 480         gtk_size_group_add_widget (size_group, priv->scrolled_window);
 481 #endif
 482 }
 483
 484 GtkTextBuffer *
 485 modest_recpt_editor_get_buffer (ModestRecptEditor *recpt_editor)
 486 {
 487         ModestRecptEditorPrivate *priv;
 488
 489         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), NULL);
 490         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 491
 492 #ifdef MODEST_TOOLKIT_HILDON2
 493         return hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 494 #else
 495         return gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 496 #endif
 497 }
 498
 499 static void
 500 modest_recpt_editor_on_abook_clicked (GtkButton *button, ModestRecptEditor *editor)
 501 {
 502         g_return_if_fail (MODEST_IS_RECPT_EDITOR (editor));
 503
 504         g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
 505 }
 506
 507 static void
 508 modest_recpt_editor_on_mark_set (GtkTextBuffer *buffer,
 509                                  GtkTextIter *iter,
 510                                  GtkTextMark *mark,
 511                                  ModestRecptEditor *recpt_editor)
 512 {
 513         ModestRecptEditorPrivate *priv;
 514         GtkTextIter insert_iter, selection_iter;
 515         GtkTextMark *selection_bound;
 516         GtkTextMark *insert;
 517         GtkTextTag *tag;
 518         gboolean selection_changed = FALSE;
 519         gboolean select_to_left;
 520
 521         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 522
 523         buffer = modest_recpt_editor_get_buffer (recpt_editor);
 524         selection_bound = gtk_text_buffer_get_selection_bound (buffer);
 525         insert = gtk_text_buffer_get_insert (buffer);
 526
 527         if (mark != selection_bound && mark != insert)
 528                 return;
 529
 530         gtk_text_buffer_get_iter_at_mark (buffer, &insert_iter, insert);
 531         gtk_text_buffer_get_iter_at_mark (buffer, &selection_iter, selection_bound);
 532
 533         select_to_left = gtk_text_iter_get_offset (&selection_iter) > gtk_text_iter_get_offset (&insert_iter);
 534
 535         tag = iter_has_recipient (&insert_iter);
 536         if (tag) {
 537                 if (select_to_left) {
 538                         if (!gtk_text_iter_begins_tag (&insert_iter, tag)) {
 539                                 gtk_text_iter_backward_to_tag_toggle (&insert_iter, tag);
 540                                 selection_changed = TRUE;
 541                         }
 542                 } else {
 543                         gtk_text_iter_forward_to_tag_toggle (&insert_iter, tag);
 544                         selection_changed = TRUE;
 545                 }
 546         }
 547
 548         tag = iter_has_recipient (&selection_iter);
 549         if (tag != NULL) {
 550                 if (select_to_left) {
 551                         gtk_text_iter_forward_to_tag_toggle (&selection_iter, tag);
 552                         selection_changed = TRUE;
 553                 } else {
 554                         if (!gtk_text_iter_begins_tag (&selection_iter, tag)) {
 555                                 gtk_text_iter_backward_to_tag_toggle (&selection_iter, tag);
 556                                 selection_changed = TRUE;
 557                         }
 558                 }
 559         }
 560
 561         if (selection_changed) {
 562                 /* We block this signal handler in order to prevent a
 563                    stack overflow caused by recursive calls to this
 564                    handler as the select_range call could issue a
 565                    "mark-set" signal */
 566                 g_signal_handler_block (buffer, priv->on_mark_set_handler);
 567                 gtk_text_buffer_select_range (buffer, &insert_iter, &selection_iter);
 568                 g_signal_handler_unblock (buffer, priv->on_mark_set_handler);
 569         }
 570 }
 571
 572 static gboolean
 573 modest_recpt_editor_on_focus_in (GtkTextView *text_view,
 574                                  GdkEventFocus *event,
 575                                  ModestRecptEditor *editor)
 576 {
 577         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 578         gtk_text_view_place_cursor_onscreen (GTK_TEXT_VIEW (priv->text_view));
 579
 580         return FALSE;
 581 }
 582
 583 static gboolean
 584 is_valid_insert (const gchar *text, gint len)
 585 {
 586         gunichar c;
 587         gunichar next_c;
 588         gint i= 0;
 589         gboolean quoted = FALSE;
 590         const gchar *current, *next_current;
 591         if (text == NULL)
 592                 return TRUE;
 593         current = text;
 594
 595         while (((len == -1)||(i < len)) && (*current != '\0')) {
 596                 c = g_utf8_get_char (current);
 597                 next_current = g_utf8_next_char (current);
 598                 if (next_current && *next_current != '\0')
 599                         next_c = g_utf8_get_char (g_utf8_next_char (current));
 600                 else
 601                         next_c = 0;
 602                 if (!quoted && ((c == g_utf8_get_char(",") || c == g_utf8_get_char (";")))) {
 603                         if ((next_c != 0) && (next_c != g_utf8_get_char ("\n")))
 604                                 return FALSE;
 605                         else {
 606                           current = g_utf8_next_char (next_current);
 607                           continue;
 608                         }
 609                 }
 610                 if (c == 0x2022 || c == 0xfffc ||
 611                     c == g_utf8_get_char ("\n") ||
 612                     c == g_utf8_get_char ("\t"))
 613                         return FALSE;
 614                 if (c == g_utf8_get_char ("\""))
 615                         quoted = !quoted;
 616                 current = g_utf8_next_char (current);
 617                 i = current - text;
 618         }
 619         return TRUE;
 620 }
 621
 622 static gchar *
 623 create_valid_text (const gchar *text, gint len)
 624 {
 625         gunichar c;
 626         gunichar next_c;
 627         gint i= 0;
 628         GString *str;
 629         gboolean quoted = FALSE;
 630         const gchar *current, *next_current;
 631
 632         if (text == NULL)
 633                 return NULL;
 634
 635         str = g_string_new ("");
 636         current = text;
 637
 638         while (((len == -1)||(i < len)) && (*current != '\0')) {
 639                 c = g_utf8_get_char (current);
 640                 next_current = g_utf8_next_char (current);
 641                 if (next_current && *next_current != '\0')
 642                         next_c = g_utf8_get_char (g_utf8_next_char (current));
 643                 else
 644                         next_c = 0;
 645                 if (c != 0x2022 && c != 0xfffc &&
 646                     c != g_utf8_get_char ("\n") &&
 647                     c != g_utf8_get_char ("\t"))
 648                         str = g_string_append_unichar (str, c);
 649                 if (!quoted && ((c == g_utf8_get_char(",") || c == g_utf8_get_char (";")))) {
 650                         if ((next_c != 0) && (next_c != g_utf8_get_char ("\n"))) {
 651                                 gchar *last_separator = MAX (g_utf8_strrchr(str->str, -1, g_utf8_get_char (",")),
 652                                                              g_utf8_strrchr(str->str, -1, g_utf8_get_char (";")));
 653                                 if (last_separator) {
 654                                         gchar *last_at = g_utf8_strrchr (str->str, -1, g_utf8_get_char ("@"));
 655                                         if (last_at) {
 656                                                 if (last_at < last_separator)
 657                                                         str = g_string_append_c (str, '\n');
 658                                         }
 659                                 } else {
 660                                         if (g_utf8_strrchr (str->str, -1, g_utf8_get_char ("@")))
 661                                                 str = g_string_append_c (str, '\n');
 662                                 }
 663                         }
 664                 }
 665                 if (c == g_utf8_get_char ("\""))
 666                         quoted = !quoted;
 667                 current = g_utf8_next_char (current);
 668                 i = current - text;
 669         }
 670
 671         return g_string_free (str, FALSE);
 672 }
 673
 674 /* Called after the default handler, and thus after the text was
 675    inserted. We use this to insert a break after a ',' or a ';'*/
 676 static void
 677 modest_recpt_editor_on_insert_text_after (GtkTextBuffer *buffer,
 678                                           GtkTextIter *location,
 679                                           gchar *text,
 680                                           gint len,
 681                                           ModestRecptEditor *editor)
 682 {
 683         GtkTextIter prev;
 684         gunichar prev_char;
 685         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 686
 687         prev = *location;
 688         /* We must go backwards twice as location points to the next
 689            valid position to insert text */
 690         if (!gtk_text_iter_backward_chars (&prev, 2))
 691                 return;
 692
 693         prev_char = gtk_text_iter_get_char (&prev);
 694         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 695         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text_after, editor);
 696         if ((prev_char == ';'||prev_char == ',')&&(!quote_opened(&prev))) {
 697                 GtkTextMark *insert;
 698                 gtk_text_iter_forward_char (&prev);
 699                 gtk_text_buffer_insert (buffer, &prev, "\n",-1);
 700                 insert = gtk_text_buffer_get_insert (buffer);
 701                 gtk_text_view_scroll_to_iter (GTK_TEXT_VIEW (priv->text_view), &prev, 0.0,TRUE, 0.0, 1.0);
 702         }
 703         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 704         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text_after, editor);
 705 }
 706
 707 /* Called before the default handler, we use it to validate the inputs */
 708 static void
 709 modest_recpt_editor_on_insert_text (GtkTextBuffer *buffer,
 710                                     GtkTextIter *location,
 711                                     gchar *text,
 712                                     gint len,
 713                                     ModestRecptEditor *editor)
 714 {
 715         if (len > 1024)
 716                 len = 1024;
 717
 718         if (!is_valid_insert (text, len)) {
 719                 gchar *new_text = create_valid_text (text, len);
 720                 g_signal_stop_emission_by_name (G_OBJECT (buffer), "insert-text");
 721                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 722                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text_after, editor);
 723                 gtk_text_buffer_insert (buffer, location, new_text, -1);
 724                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 725                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text_after, editor);
 726                 g_free (new_text);
 727                 return;
 728         }
 729
 730         if (iter_has_recipient (location)) {
 731                 gtk_text_buffer_get_end_iter (buffer, location);
 732                 gtk_text_buffer_place_cursor (buffer, location);
 733         }
 734 }
 735
 736 static GtkTextTag *
 737 iter_has_recipient (GtkTextIter *iter)
 738 {
 739         GSList *tags, *node;
 740         GtkTextTag *result = NULL;
 741
 742         tags = gtk_text_iter_get_tags (iter);
 743
 744         for (node = tags; node != NULL; node = g_slist_next (node)) {
 745                 GtkTextTag *tag = GTK_TEXT_TAG (node->data);
 746
 747                 if (g_object_get_data (G_OBJECT (tag), "recipient-tag-id")) {
 748                         result = tag;
 749                         break;
 750                 }
 751         }
 752         g_slist_free (tags);
 753         return result;
 754 }
 755
 756 static GtkTextTag *
 757 prev_iter_has_recipient (GtkTextIter *iter)
 758 {
 759         GtkTextIter prev;
 760
 761         prev = *iter;
 762         gtk_text_iter_backward_char (&prev);
 763         return iter_has_recipient (&prev);
 764 }
 765
 766 /* static GtkTextTag * */
 767 /* next_iter_has_recipient (GtkTextIter *iter) */
 768 /* { */
 769 /*      GtkTextIter next; */
 770
 771 /*      next = *iter; */
 772 /*      return iter_has_recipient (&next); */
 773 /* } */
 774
 775 static gunichar
 776 iter_previous_char (GtkTextIter *iter)
 777 {
 778         GtkTextIter prev;
 779
 780         prev = *iter;
 781         gtk_text_iter_backward_char (&prev);
 782         return gtk_text_iter_get_char (&prev);
 783 }
 784
 785 /* static gunichar  */
 786 /* iter_next_char (GtkTextIter *iter) */
 787 /* { */
 788 /*      GtkTextIter next; */
 789
 790 /*      next = *iter; */
 791 /*      gtk_text_iter_forward_char (&next); */
 792 /*      return gtk_text_iter_get_char (&next); */
 793 /* } */
 794
 795 static void
 796 select_tag_of_iter (GtkTextIter *iter, GtkTextTag *tag, gboolean grow, gboolean left_not_right)
 797 {
 798         GtkTextIter start, end;
 799
 800         start = *iter;
 801         if (!gtk_text_iter_begins_tag (&start, tag)) {
 802                 gtk_text_iter_backward_to_tag_toggle (&start, tag);
 803         } else {
 804                 if (!left_not_right) {
 805                         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &start, &start);
 806                         return;
 807                 }
 808         }
 809         end = *iter;
 810         if (!gtk_text_iter_ends_tag (&end, tag)) {
 811                 gtk_text_iter_forward_to_tag_toggle (&end, tag);
 812         } else {
 813                 if (left_not_right) {
 814                         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &end, &end);
 815                         return;
 816                 }
 817         }
 818         if (grow) {
 819                 if (left_not_right)
 820                         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &start, &end);
 821                 else
 822                         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &end, &start);
 823         } else {
 824                 if (left_not_right)
 825                         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &start, &start);
 826                 else
 827                         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &end, &end);
 828         }
 829         *iter = left_not_right?start:end;
 830 }
 831
 832 static gboolean
 833 quote_opened (GtkTextIter *iter)
 834 {
 835         GtkTextIter start;
 836         GtkTextBuffer *buffer;
 837         gboolean opened = FALSE;
 838
 839         buffer = gtk_text_iter_get_buffer (iter);
 840         gtk_text_buffer_get_start_iter (buffer, &start);
 841
 842         while (!gtk_text_iter_equal (&start, iter)) {
 843                 gunichar current_char = gtk_text_iter_get_char (&start);
 844                 if (current_char == '"')
 845                         opened = !opened;
 846                 else if (current_char == '\\')
 847                         gtk_text_iter_forward_char (&start);
 848                 if (!gtk_text_iter_equal (&start, iter))
 849                         gtk_text_iter_forward_char (&start);
 850
 851         }
 852         return opened;
 853
 854 }
 855
 856
 857 static gboolean
 858 modest_recpt_editor_on_key_press_event (GtkTextView *text_view,
 859                                           GdkEventKey *key,
 860                                           ModestRecptEditor *editor)
 861 {
 862         GtkTextMark *insert;
 863         GtkTextMark *selection;
 864         GtkTextBuffer * buffer;
 865         GtkTextIter location, selection_loc;
 866         GtkTextTag *tag;
 867         gboolean shift_pressed;
 868         gboolean select_to_left;
 869         gboolean has_selection;
 870
 871 #ifdef MODEST_TOOLKIT_HILDON2
 872         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (text_view));
 873 #else
 874         buffer = gtk_text_view_get_buffer (text_view);
 875 #endif
 876         insert = gtk_text_buffer_get_insert (buffer);
 877         selection = gtk_text_buffer_get_selection_bound (buffer);
 878
 879         /* cases to cover:
 880          *    * cursor is on resolved recipient:
 881          *        - right should go to first character after the recipient (usually ; or ,)
 882          *        - left should fo to the first character before the recipient
 883          *        - return should run check names on the recipient.
 884          *    * cursor is just after a recipient:
 885          *        - right should go to the next character. If it's a recipient, should select
 886          *          it
 887          *        - left should go to the previous character. If it's a recipient, should go
 888          *          to the first character of the recipient, and select it.
 889          *    * cursor is on arbitrary text:
 890          *        - return should add a ; and go to the next line
 891          *        - left or right standard ones.
 892          *    * cursor is after a \n:
 893          *        - left should go to the character before the \n (as if \n was not a character)
 894          *    * cursor is before a \n:
 895          *        - right should go to the character after the \n
 896          */
 897
 898         gtk_text_buffer_get_iter_at_mark (buffer, &location, insert);
 899         gtk_text_buffer_get_iter_at_mark (buffer, &selection_loc, selection);
 900
 901         select_to_left = gtk_text_iter_get_offset (&selection_loc) > gtk_text_iter_get_offset (&location);
 902         has_selection = gtk_text_iter_get_offset (&selection_loc) != gtk_text_iter_get_offset (&location);
 903         shift_pressed = key->state & GDK_SHIFT_MASK;
 904
 905         switch (key->keyval) {
 906         case GDK_Left:
 907         case GDK_KP_Left:
 908         {
 909                 gboolean cursor_ready = FALSE;
 910                 GtkTextIter prev_location;
 911                 gboolean moved = TRUE;
 912
 913                 prev_location = location;
 914                 while (!cursor_ready) {
 915                         if (moved && (iter_previous_char (&location) == '\n')) {
 916                                 moved = gtk_text_iter_backward_char (&location);
 917                         } else {
 918                                 cursor_ready = TRUE;
 919                         }
 920                 }
 921                 tag = iter_has_recipient (&location);
 922                 if (has_selection && gtk_text_iter_ends_tag (&prev_location, tag)) {
 923                         gtk_text_iter_backward_to_tag_toggle (&prev_location, tag);
 924                         location = prev_location;
 925                         cursor_ready = FALSE;
 926                         moved = TRUE;
 927                         while (moved && !cursor_ready) {
 928                                 if (iter_previous_char (&location) == '\n') {
 929                                         moved = gtk_text_iter_backward_char (&location);
 930                                 } else {
 931                                         cursor_ready = TRUE;
 932                                 }
 933                         }
 934                 }
 935
 936                 if ((tag != NULL)&& (gtk_text_iter_is_start (&location) || !(gtk_text_iter_begins_tag (&location, tag)))) {
 937                         if (has_selection) {
 938                                 gtk_text_buffer_select_range (buffer, &location, &location);
 939                         } else {
 940                                 select_tag_of_iter (&location, tag, select_to_left, TRUE);
 941                         }
 942                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 943
 944                         if (shift_pressed) {
 945                                 gtk_text_buffer_select_range (buffer, &location, &selection_loc);
 946                         }
 947                         return TRUE;
 948                 }
 949                 gtk_text_iter_backward_char (&location);
 950                 tag = iter_has_recipient (&location);
 951                 if (tag != NULL)
 952                         select_tag_of_iter (&location, tag, select_to_left, TRUE);
 953                 else {
 954                         gtk_text_buffer_place_cursor (buffer, &location);
 955                 }
 956                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 957
 958                 if (shift_pressed) {
 959                         gtk_text_buffer_select_range (buffer, &location, &selection_loc);
 960                 }
 961
 962                 return TRUE;
 963         }
 964         break;
 965         case GDK_Right:
 966         case GDK_KP_Right:
 967         {
 968                 gboolean cursor_moved = FALSE;
 969                 gboolean moved = TRUE;
 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                         moved = TRUE;
 975                         while (moved && (gtk_text_iter_get_char (&location) == '\n'))
 976                                 moved = gtk_text_iter_forward_char (&location);
 977                         gtk_text_buffer_place_cursor (buffer, &location);
 978                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 979
 980                         if (shift_pressed) {
 981                                 gtk_text_buffer_select_range (buffer, &location, &selection_loc);
 982                         }
 983                         return TRUE;
 984                 }
 985
 986                 moved = TRUE;
 987                 while (moved && (gtk_text_iter_get_char (&location) == '\n')) {
 988                         moved = gtk_text_iter_forward_char (&location);
 989                         cursor_moved = TRUE;
 990                 }
 991                 if (!cursor_moved)
 992                         gtk_text_iter_forward_char (&location);
 993
 994                 moved = TRUE;
 995                 while (moved && (gtk_text_iter_get_char (&location) == '\n')) {
 996                         moved = gtk_text_iter_forward_char (&location);
 997                         cursor_moved = TRUE;
 998                 }
 999
1000                 tag = iter_has_recipient (&location);
1001                 if (tag != NULL)
1002                         select_tag_of_iter (&location, tag, !select_to_left, FALSE);
1003                 else
1004                         gtk_text_buffer_place_cursor (buffer, &location);
1005                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
1006
1007                 if (shift_pressed) {
1008                         gtk_text_buffer_select_range (buffer, &location, &selection_loc);
1009                 }
1010                 return TRUE;
1011         }
1012         break;
1013         case GDK_Return:
1014         case GDK_KP_Enter:
1015         {
1016                 gint insert_offset, selection_offset;
1017                 insert_offset = gtk_text_iter_get_offset (&location);
1018                 selection_offset = gtk_text_iter_get_offset (&selection_loc);
1019                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
1020                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text_after, editor);
1021                 if (selection_offset > insert_offset)
1022                         location = selection_loc;
1023                 tag = iter_has_recipient (&location);
1024                 if (tag != NULL) {
1025                         gtk_text_buffer_get_end_iter (buffer, &location);
1026                         gtk_text_buffer_place_cursor (buffer, &location);
1027                         if ((iter_previous_char (&location) != ';')&&(iter_previous_char (&location) != ','))
1028                                 gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
1029                         gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
1030                 } else {
1031                         gunichar prev_char = iter_previous_char (&location);
1032                         if ((gtk_text_iter_is_start (&location))||(prev_char == '\n')
1033                             ||(prev_char == ';')||(prev_char == ','))
1034                                 g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
1035                         else {
1036                                 if ((prev_char != ';') && (prev_char != ','))
1037                                         gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
1038                                 gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
1039                         }
1040                 }
1041                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
1042                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text_after, editor);
1043                 return TRUE;
1044         }
1045         break;
1046         case GDK_BackSpace:
1047         {
1048                 #if GTK_CHECK_VERSION(2, 10, 0) /* gtk_text_buffer_get_has_selection is only available in GTK+ 2.10 */
1049                 if (gtk_text_buffer_get_has_selection (buffer)) {
1050                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
1051                         return TRUE;
1052                 }
1053                 #else
1054                 if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
1055                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
1056                         return TRUE;
1057                 }
1058                 #endif
1059
1060                 tag = prev_iter_has_recipient (&location);
1061                 if (tag != NULL) {
1062                         GtkTextIter iter_in_tag;
1063                         iter_in_tag = location;
1064                         gtk_text_iter_backward_char (&iter_in_tag);
1065                         select_tag_of_iter (&iter_in_tag, tag, FALSE, TRUE);
1066                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
1067                         return TRUE;
1068                 }
1069                 return FALSE;
1070         }
1071         break;
1072         default:
1073                 return FALSE;
1074         }
1075 }
1076
1077 static void _discard_chars (GtkTextIter *start, GtkTextIter *end)
1078 {
1079         while (!gtk_text_iter_equal (start, end)) {
1080                 gunichar c = gtk_text_iter_get_char (start);
1081
1082                 if (c == '\n' || c == ';' || c == ',' || c == ' ') {
1083                         if (!gtk_text_iter_forward_char (start))
1084                                 break;
1085                 } else {
1086                         break;
1087                 }
1088
1089         }
1090 }
1091
1092 /* NOTE: before calling this function be sure that both
1093    modest_recpt_editor_on_insert_text and
1094    modest_recpt_editor_on_insert_text_after won't be triggered during
1095    the execution of the procedure. You'll have to block both signal
1096    handlers otherwise you'll get an infinite loop and most likely a
1097    SIGSEV caused by a stack overflow */
1098 static void
1099 modest_recpt_editor_add_tags (ModestRecptEditor *editor,
1100                               const gchar * recipient_id)
1101 {
1102
1103         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
1104 #ifdef MODEST_TOOLKIT_HILDON2
1105         GtkTextBuffer *buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
1106 #else
1107         GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
1108 #endif
1109         GtkTextTag *tag;
1110         GtkTextIter start, end;
1111         gchar * buffer_contents;
1112         GtkTextIter start_match, end_match;
1113
1114         /* This would move the cursor to the end of the buffer
1115            containing new line character. */
1116         gtk_text_buffer_get_bounds (buffer, &start, &end);
1117         buffer_contents = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
1118         gtk_text_buffer_set_text(buffer,buffer_contents,strlen(buffer_contents));
1119
1120         tag = gtk_text_buffer_create_tag (buffer, NULL,
1121                                           "underline", PANGO_UNDERLINE_SINGLE,
1122                                           "wrap-mode", GTK_WRAP_NONE,
1123                                           "editable", TRUE, NULL);
1124
1125         g_object_set_data (G_OBJECT (tag), "recipient-tag-id", GINT_TO_POINTER (RECIPIENT_TAG_ID));
1126         g_object_set_data_full (G_OBJECT (tag), "recipient-id", g_strdup (recipient_id), (GDestroyNotify) g_free);
1127
1128         /* Formatting the buffer content by applying tag */
1129         gtk_text_buffer_get_bounds (buffer, &start, &end);
1130         _discard_chars (&start, &end);
1131         while (gtk_text_iter_forward_search(&start, ";",
1132                                             GTK_TEXT_SEARCH_TEXT_ONLY |
1133                                             GTK_TEXT_SEARCH_VISIBLE_ONLY,
1134                                             &start_match, &end_match, &end )) {
1135                 int offset;
1136
1137                 gtk_text_buffer_apply_tag(buffer, tag, &start, &start_match);
1138                 offset = gtk_text_iter_get_offset (&end_match);
1139                 gtk_text_buffer_get_iter_at_offset(buffer, &start, offset);
1140                 _discard_chars (&start, &end);
1141         }
1142         g_free (buffer_contents);
1143 }
1144
1145 void
1146 modest_recpt_editor_grab_focus (ModestRecptEditor *recpt_editor)
1147 {
1148         ModestRecptEditorPrivate *priv;
1149
1150         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
1151         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
1152
1153         if (GTK_WIDGET_VISIBLE (recpt_editor)) {
1154                 gtk_widget_grab_focus (priv->text_view);
1155         }
1156 }
1157
1158 gboolean
1159 modest_recpt_editor_has_focus (ModestRecptEditor *recpt_editor)
1160 {
1161         ModestRecptEditorPrivate *priv;
1162
1163         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), FALSE);
1164         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
1165
1166         return GTK_WIDGET_VISIBLE (priv->text_view) &&
1167                 gtk_widget_is_focus (priv->text_view);
1168 }
1169
1170 void
1171 modest_recpt_editor_set_show_abook_button (ModestRecptEditor *recpt_editor, gboolean show)
1172 {
1173         ModestRecptEditorPrivate *priv;
1174
1175         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
1176         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
1177
1178         priv->show_abook = show;
1179
1180         if (show)
1181                 gtk_widget_show (priv->abook_button);
1182         else
1183                 gtk_widget_hide (priv->abook_button);
1184 }
1185
1186 gboolean
1187 modest_recpt_editor_get_show_abook_button (ModestRecptEditor *recpt_editor, gboolean show)
1188 {
1189         ModestRecptEditorPrivate *priv;
1190
1191         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), FALSE);
1192         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
1193
1194         return priv->show_abook;
1195
1196 }
1197
1198 static void
1199 modest_recpt_editor_finalize (GObject *object)
1200 {
1201         ModestRecptEditorPrivate *priv;
1202         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (object);
1203
1204         if (g_signal_handler_is_connected (object, priv->on_mark_set_handler))
1205                 g_signal_handler_disconnect (object, priv->on_mark_set_handler);
1206         priv->on_mark_set_handler = 0;
1207
1208         if (priv->recipients) {
1209                 g_free (priv->recipients);
1210                 priv->recipients = NULL;
1211         }
1212
1213         (*parent_class->finalize) (object);
1214
1215         return;
1216 }
1217
1218 static void
1219 modest_recpt_editor_class_init (ModestRecptEditorClass *klass)
1220 {
1221         GObjectClass *object_class;
1222
1223         parent_class = g_type_class_peek_parent (klass);
1224         object_class = (GObjectClass*) klass;
1225
1226         object_class->finalize = modest_recpt_editor_finalize;
1227
1228         g_type_class_add_private (object_class, sizeof (ModestRecptEditorPrivate));
1229
1230         signals[OPEN_ADDRESSBOOK_SIGNAL] =
1231                 g_signal_new ("open-addressbook",
1232                               G_TYPE_FROM_CLASS (object_class),
1233                               G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
1234                               G_STRUCT_OFFSET (ModestRecptEditorClass, open_addressbook),
1235                               NULL, NULL,
1236                               g_cclosure_marshal_VOID__VOID,
1237                               G_TYPE_NONE, 0);
1238
1239         return;
1240 }
1241
1242 GType
1243 modest_recpt_editor_get_type (void)
1244 {
1245         static GType type = 0;
1246
1247         if (G_UNLIKELY(type == 0))
1248         {
1249                 static const GTypeInfo info =
1250                 {
1251                   sizeof (ModestRecptEditorClass),
1252                   NULL,   /* base_init */
1253                   NULL,   /* base_finalize */
1254                   (GClassInitFunc) modest_recpt_editor_class_init,   /* class_init */
1255                   NULL,   /* class_finalize */
1256                   NULL,   /* class_data */
1257                   sizeof (ModestRecptEditor),
1258                   0,      /* n_preallocs */
1259                   modest_recpt_editor_instance_init    /* instance_init */
1260                 };
1261
1262                 type = g_type_register_static (GTK_TYPE_HBOX,
1263                         "ModestRecptEditor",
1264                         &info, 0);
1265
1266         }
1267
1268         return type;
1269 }