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

   1 /* Copyright (c) 2007, Nokia Corporation
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  *   notice, this list of conditions and the following disclaimer.
  10  * * Redistributions in binary form must reproduce the above copyright
  11  *   notice, this list of conditions and the following disclaimer in the
  12  *   documentation and/or other materials provided with the distribution.
  13  * * Neither the name of the Nokia Corporation nor the names of its
  14  *   contributors may be used to endorse or promote products derived from
  15  *   this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  18  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  20  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #include <config.h>
  31
  32 #include <glib/gi18n-lib.h>
  33
  34 #include <gtk/gtkscrolledwindow.h>
  35 #include <gtk/gtktextview.h>
  36 #include <gtk/gtkimage.h>
  37 #include <gtk/gtkbutton.h>
  38
  39 #include <modest-text-utils.h>
  40 #include <modest-recpt-editor.h>
  41 #include <modest-scroll-text.h>
  42 #include <pango/pango-attributes.h>
  43 #include <string.h>
  44 #include <gdk/gdkkeysyms.h>
  45 #include <gtk/gtk.h>
  46
  47 static GObjectClass *parent_class = NULL;
  48
  49 #define RECIPIENT_TAG_ID "recpt-id"
  50
  51 /* signals */
  52 enum {
  53         OPEN_ADDRESSBOOK_SIGNAL,
  54         LAST_SIGNAL
  55 };
  56
  57 typedef struct _ModestRecptEditorPrivate ModestRecptEditorPrivate;
  58
  59 struct _ModestRecptEditorPrivate
  60 {
  61         GtkWidget *text_view;
  62         GtkWidget *abook_button;
  63         GtkWidget *scrolled_window;
  64         gchar *recipients;
  65
  66 };
  67
  68 #define MODEST_RECPT_EDITOR_GET_PRIVATE(o)      \
  69         (G_TYPE_INSTANCE_GET_PRIVATE ((o), MODEST_TYPE_RECPT_EDITOR, ModestRecptEditorPrivate))
  70
  71 static guint signals[LAST_SIGNAL] = {0};
  72
  73 /* static functions: GObject */
  74 static void modest_recpt_editor_instance_init (GTypeInstance *instance, gpointer g_class);
  75 static void modest_recpt_editor_finalize (GObject *object);
  76 static void modest_recpt_editor_class_init (ModestRecptEditorClass *klass);
  77
  78 /* widget events */
  79 static void modest_recpt_editor_on_abook_clicked (GtkButton *button,
  80                                                   ModestRecptEditor *editor);
  81 static gboolean modest_recpt_editor_on_button_release_event (GtkWidget *widget,
  82                                                              GdkEventButton *event,
  83                                                              ModestRecptEditor *editor);
  84 static void modest_recpt_editor_move_cursor_to_end (ModestRecptEditor *editor);
  85 static void modest_recpt_editor_on_focus_in (GtkTextView *text_view,
  86                                              GdkEventFocus *event,
  87                                              ModestRecptEditor *editor);
  88 static void modest_recpt_editor_on_insert_text (GtkTextBuffer *buffer,
  89                                                 GtkTextIter *location,
  90                                                 gchar *text,
  91                                                 gint len,
  92                                                 ModestRecptEditor *editor);
  93 static gboolean modest_recpt_editor_on_key_press_event (GtkTextView *text_view,
  94                                                           GdkEventKey *key,
  95                                                           ModestRecptEditor *editor);
  96 static GtkTextTag *iter_has_recipient (GtkTextIter *iter);
  97 static gunichar iter_previous_char (GtkTextIter *iter);
  98 /* static gunichar iter_next_char (GtkTextIter *iter); */
  99 static GtkTextTag *prev_iter_has_recipient (GtkTextIter *iter);
 100 /* static GtkTextTag *next_iter_has_recipient (GtkTextIter *iter); */
 101 static void select_tag_of_iter (GtkTextIter *iter, GtkTextTag *tag);
 102 static gboolean quote_opened (GtkTextIter *iter);
 103 static gboolean is_valid_insert (const gchar *text, gint len);
 104 static gchar *create_valid_text (const gchar *text, gint len);
 105
 106 /**
 107  * modest_recpt_editor_new:
 108  *
 109  * Return value: a new #ModestRecptEditor instance implemented for Gtk+
 110  **/
 111 GtkWidget*
 112 modest_recpt_editor_new (void)
 113 {
 114         ModestRecptEditor *self = g_object_new (MODEST_TYPE_RECPT_EDITOR,
 115                                                 "homogeneous", FALSE,
 116                                                 "spacing", 1,
 117                                                 NULL);
 118
 119         return GTK_WIDGET (self);
 120 }
 121
 122 void
 123 modest_recpt_editor_set_recipients (ModestRecptEditor *recpt_editor, const gchar *recipients)
 124 {
 125         ModestRecptEditorPrivate *priv;
 126         GtkTextBuffer *buffer = NULL;
 127         gchar *valid_recipients = NULL;
 128
 129         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 130         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 131
 132         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 133
 134         valid_recipients = create_valid_text (recipients, -1);
 135         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 136         gtk_text_buffer_set_text (buffer, valid_recipients, -1);
 137         g_free (valid_recipients);
 138         if (GTK_WIDGET_REALIZED (recpt_editor))
 139                 gtk_widget_queue_resize (GTK_WIDGET (recpt_editor));
 140         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 141
 142 }
 143
 144 void
 145 modest_recpt_editor_add_recipients (ModestRecptEditor *recpt_editor, const gchar *recipients)
 146 {
 147         ModestRecptEditorPrivate *priv;
 148         GtkTextBuffer *buffer = NULL;
 149         GtkTextIter iter;
 150         gchar * string_to_add;
 151
 152         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 153         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 154
 155         if (recipients == NULL)
 156                 return;
 157
 158         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 159
 160         if (gtk_text_buffer_get_char_count (buffer) > 0) {
 161                 string_to_add = g_strconcat (";\n", recipients, NULL);
 162         } else {
 163                 string_to_add = g_strdup (recipients);
 164         }
 165
 166         gtk_text_buffer_get_end_iter (buffer, &iter);
 167
 168         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 169
 170         gtk_text_buffer_insert (buffer, &iter, recipients, -1);
 171
 172         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 173
 174         if (GTK_WIDGET_REALIZED (recpt_editor))
 175                 gtk_widget_queue_resize (GTK_WIDGET (recpt_editor));
 176
 177 }
 178
 179 void
 180 modest_recpt_editor_add_resolved_recipient (ModestRecptEditor *recpt_editor, GSList *email_list, const gchar * recipient_id)
 181 {
 182         ModestRecptEditorPrivate *priv;
 183         GtkTextBuffer *buffer = NULL;
 184         GtkTextIter start, end, iter;
 185         GtkTextTag *tag = NULL;
 186         GSList *node;
 187         gboolean is_first_recipient = TRUE;
 188
 189         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 190         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 191
 192         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 193
 194         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 195         gtk_text_buffer_get_bounds (buffer, &start, &end);
 196         if (gtk_text_buffer_get_char_count (buffer) > 0) {
 197                 gchar * buffer_contents;
 198
 199                 gtk_text_buffer_get_bounds (buffer, &start, &end);
 200                 buffer_contents = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 201                 if (!g_str_has_suffix (buffer_contents, "\n")) {
 202                         if (g_str_has_suffix (buffer_contents, ";")||(g_str_has_suffix (buffer_contents, ",")))
 203                                 gtk_text_buffer_insert (buffer, &end, "\n", -1);
 204                         else
 205                                 gtk_text_buffer_insert (buffer, &end, ";\n", -1);
 206                 }
 207                 g_free (buffer_contents);
 208         }
 209
 210         gtk_text_buffer_get_end_iter (buffer, &iter);
 211
 212         tag = gtk_text_buffer_create_tag (buffer, NULL,
 213                                           "underline", PANGO_UNDERLINE_SINGLE,
 214                                           "wrap-mode", GTK_WRAP_NONE,
 215                                           "editable", TRUE, NULL);
 216
 217         g_object_set_data (G_OBJECT (tag), "recipient-tag-id", GINT_TO_POINTER (RECIPIENT_TAG_ID));
 218         g_object_set_data_full (G_OBJECT (tag), "recipient-id", g_strdup (recipient_id), (GDestroyNotify) g_free);
 219
 220         for (node = email_list; node != NULL; node = g_slist_next (node)) {
 221                 gchar *recipient = (gchar *) node->data;
 222
 223                 if ((recipient) && (strlen (recipient) != 0)) {
 224
 225                         if (!is_first_recipient)
 226                         gtk_text_buffer_insert (buffer, &iter, "\n", -1);
 227
 228                         gtk_text_buffer_insert_with_tags (buffer, &iter, recipient, -1, tag, NULL);
 229                         gtk_text_buffer_insert (buffer, &iter, ";", -1);
 230                         is_first_recipient = FALSE;
 231                 }
 232         }
 233         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 234
 235         modest_recpt_editor_move_cursor_to_end (recpt_editor);
 236
 237 }
 238
 239 void
 240 modest_recpt_editor_replace_with_resolved_recipient (ModestRecptEditor *recpt_editor,
 241                                                      GtkTextIter *start, GtkTextIter *end,
 242                                                      GSList *email_list, const gchar * recipient_id)
 243 {
 244         ModestRecptEditorPrivate *priv;
 245         GtkTextBuffer *buffer;
 246         GtkTextTag *tag;
 247         GSList *node;
 248         gboolean is_first_recipient = TRUE;
 249
 250         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 251         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 252
 253         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 254         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 255
 256         gtk_text_buffer_delete (buffer, start, end);
 257
 258         tag = gtk_text_buffer_create_tag (buffer, NULL,
 259                                           "underline", PANGO_UNDERLINE_SINGLE,
 260                                           "wrap-mode", GTK_WRAP_NONE,
 261                                           "editable", TRUE, NULL);
 262
 263         g_object_set_data (G_OBJECT (tag), "recipient-tag-id", GINT_TO_POINTER (RECIPIENT_TAG_ID));
 264         g_object_set_data_full (G_OBJECT (tag), "recipient-id", g_strdup (recipient_id), (GDestroyNotify) g_free);
 265
 266         for (node = email_list; node != NULL; node = g_slist_next (node)) {
 267                 gchar *recipient = (gchar *) node->data;
 268
 269                 if ((recipient) && (strlen (recipient) != 0)) {
 270
 271                         if (!is_first_recipient)
 272                         gtk_text_buffer_insert (buffer, start, "\n", -1);
 273
 274                         gtk_text_buffer_insert_with_tags (buffer, start, recipient, -1, tag, NULL);
 275
 276                         if (node->next != NULL)
 277                                 gtk_text_buffer_insert (buffer, start, ";", -1);
 278                         is_first_recipient = FALSE;
 279                 }
 280         }
 281         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 282
 283 }
 284
 285
 286 const gchar *
 287 modest_recpt_editor_get_recipients (ModestRecptEditor *recpt_editor)
 288 {
 289         ModestRecptEditorPrivate *priv;
 290         GtkTextBuffer *buffer = NULL;
 291         GtkTextIter start, end;
 292         gchar *c;
 293
 294         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), NULL);
 295         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 296
 297         if (priv->recipients != NULL) {
 298                 g_free (priv->recipients);
 299                 priv->recipients = NULL;
 300         }
 301
 302         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 303
 304         gtk_text_buffer_get_start_iter (buffer, &start);
 305         gtk_text_buffer_get_end_iter (buffer, &end);
 306
 307         priv->recipients = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 308         for (c = priv->recipients; *c != '\0'; c = g_utf8_next_char (c)) {
 309                 if (*c == '\n') {
 310                         *c = ' ';
 311                 }
 312         }
 313
 314         return priv->recipients;
 315
 316 }
 317
 318 static void
 319 modest_recpt_editor_instance_init (GTypeInstance *instance, gpointer g_class)
 320 {
 321         ModestRecptEditorPrivate *priv;
 322         GtkWidget *abook_icon;
 323         GtkTextBuffer *buffer;
 324
 325         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (instance);
 326
 327         priv->abook_button = gtk_button_new ();
 328         gtk_button_set_relief (GTK_BUTTON (priv->abook_button), GTK_RELIEF_NONE);
 329         gtk_button_set_focus_on_click (GTK_BUTTON (priv->abook_button), FALSE);
 330         GTK_WIDGET_UNSET_FLAGS (priv->abook_button, GTK_CAN_FOCUS);
 331         gtk_button_set_alignment (GTK_BUTTON (priv->abook_button), 1.0, 1.0);
 332         abook_icon = gtk_image_new_from_icon_name ("qgn_list_addressbook", GTK_ICON_SIZE_BUTTON);
 333         gtk_container_add (GTK_CONTAINER (priv->abook_button), abook_icon);
 334
 335         priv->text_view = gtk_text_view_new ();
 336         priv->recipients = NULL;
 337
 338         priv->scrolled_window = modest_scroll_text_new (GTK_TEXT_VIEW (priv->text_view), 1024);
 339         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_POLICY_NEVER,
 340                                         GTK_POLICY_AUTOMATIC);
 341         gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_SHADOW_IN);
 342 /*      gtk_container_add (GTK_CONTAINER (priv->scrolled_window), priv->text_view); */
 343
 344         gtk_box_pack_start (GTK_BOX (instance), priv->scrolled_window, TRUE, TRUE, 0);
 345 /*      gtk_box_pack_start (GTK_BOX (instance), priv->text_view, TRUE, TRUE, 0); */
 346         gtk_box_pack_end (GTK_BOX (instance), priv->abook_button, FALSE, FALSE, 0);
 347
 348         gtk_text_view_set_accepts_tab (GTK_TEXT_VIEW (priv->text_view), FALSE);
 349         gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (priv->text_view), TRUE);
 350         gtk_text_view_set_editable (GTK_TEXT_VIEW (priv->text_view), TRUE);
 351
 352         gtk_text_view_set_justification (GTK_TEXT_VIEW (priv->text_view), GTK_JUSTIFY_LEFT);
 353         gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (priv->text_view), GTK_WRAP_CHAR);
 354
 355         gtk_widget_set_size_request (priv->text_view, 75, -1);
 356
 357         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 358         g_signal_connect (G_OBJECT (priv->abook_button), "clicked", G_CALLBACK (modest_recpt_editor_on_abook_clicked), instance);
 359         g_signal_connect (G_OBJECT (priv->text_view), "button-release-event", G_CALLBACK (modest_recpt_editor_on_button_release_event), instance);
 360         g_signal_connect (G_OBJECT (priv->text_view), "key-press-event", G_CALLBACK (modest_recpt_editor_on_key_press_event), instance);
 361         g_signal_connect (G_OBJECT (priv->text_view), "focus-in-event", G_CALLBACK (modest_recpt_editor_on_focus_in), instance);
 362         g_signal_connect (G_OBJECT (buffer), "insert-text", G_CALLBACK (modest_recpt_editor_on_insert_text), instance);
 363
 364 /*      gtk_container_set_focus_child (GTK_CONTAINER (instance), priv->text_view); */
 365
 366         return;
 367 }
 368
 369 void
 370 modest_recpt_editor_set_field_size_group (ModestRecptEditor *recpt_editor, GtkSizeGroup *size_group)
 371 {
 372         ModestRecptEditorPrivate *priv;
 373
 374         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 375         g_return_if_fail (GTK_IS_SIZE_GROUP (size_group));
 376         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 377
 378         gtk_size_group_add_widget (size_group, priv->scrolled_window);
 379 }
 380
 381 GtkTextBuffer *
 382 modest_recpt_editor_get_buffer (ModestRecptEditor *recpt_editor)
 383 {
 384         ModestRecptEditorPrivate *priv;
 385
 386         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), NULL);
 387         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 388
 389         return gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 390 }
 391
 392 static void
 393 modest_recpt_editor_on_abook_clicked (GtkButton *button, ModestRecptEditor *editor)
 394 {
 395         g_return_if_fail (MODEST_IS_RECPT_EDITOR (editor));
 396
 397         g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
 398 }
 399
 400 static gboolean
 401 modest_recpt_editor_on_button_release_event (GtkWidget *widget,
 402                                              GdkEventButton *event,
 403                                              ModestRecptEditor *recpt_editor)
 404 {
 405         ModestRecptEditorPrivate *priv;
 406         GtkTextIter location, start, end;
 407         GtkTextMark *mark;
 408         GtkTextBuffer *buffer;
 409         GtkTextTag *tag;
 410         gboolean selection_changed = FALSE;
 411
 412         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 413
 414         buffer = modest_recpt_editor_get_buffer (recpt_editor);
 415         mark = gtk_text_buffer_get_insert (buffer);
 416         gtk_text_buffer_get_iter_at_mark (buffer, &location, mark);
 417
 418         gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
 419
 420         tag = iter_has_recipient (&start);
 421         if (tag != NULL)
 422                 if (!gtk_text_iter_begins_tag (&start, tag)) {
 423                         gtk_text_iter_backward_to_tag_toggle (&start, tag);
 424                         selection_changed = TRUE;
 425                 }
 426
 427         tag = iter_has_recipient (&end);
 428         if (tag != NULL)
 429                 if (!gtk_text_iter_ends_tag (&end, tag)) {
 430                         gtk_text_iter_forward_to_tag_toggle (&end, tag);
 431                         selection_changed = TRUE;
 432                 }
 433
 434         gtk_text_buffer_select_range (buffer, &start, &end);
 435
 436         return FALSE;
 437 }
 438
 439 static void
 440 modest_recpt_editor_on_focus_in (GtkTextView *text_view,
 441                                  GdkEventFocus *event,
 442                                  ModestRecptEditor *editor)
 443 {
 444         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 445         gtk_text_view_place_cursor_onscreen (GTK_TEXT_VIEW (priv->text_view));
 446 }
 447
 448 static gboolean
 449 is_valid_insert (const gchar *text, gint len)
 450 {
 451         gunichar c;
 452         gunichar next_c;
 453         gint i= 0;
 454         gboolean quoted = FALSE;
 455         const gchar *current, *next_current;
 456         if (text == NULL)
 457                 return TRUE;
 458         current = text;
 459
 460         while (((len == -1)||(i < len)) && (*current != '\0')) {
 461                 c = g_utf8_get_char (current);
 462                 next_current = g_utf8_next_char (current);
 463                 if (next_current && *next_current != '\0')
 464                         next_c = g_utf8_get_char (g_utf8_next_char (current));
 465                 else
 466                         next_c = 0;
 467                 if (!quoted && ((c == g_utf8_get_char(",") || c == g_utf8_get_char (";")))) {
 468                         if ((next_c != 0) && (next_c != g_utf8_get_char ("\n")))
 469                                 return FALSE;
 470                         else {
 471                           current = g_utf8_next_char (next_current);
 472                           continue;
 473                         }
 474                 }
 475                 if (c == 0x2022 || c == 0xfffc ||
 476                     c == g_utf8_get_char ("\n") ||
 477                     c == g_utf8_get_char ("\t"))
 478                         return FALSE;
 479                 if (c == g_utf8_get_char ("\""))
 480                         quoted = !quoted;
 481                 current = g_utf8_next_char (current);
 482                 i = current - text;
 483         }
 484         return TRUE;
 485 }
 486
 487 static gchar *
 488 create_valid_text (const gchar *text, gint len)
 489 {
 490         gunichar c;
 491         gunichar next_c;
 492         gint i= 0;
 493         GString *str;
 494         gboolean quoted = FALSE;
 495         const gchar *current, *next_current;
 496
 497         if (text == NULL)
 498                 return NULL;
 499
 500         str = g_string_new ("");
 501         current = text;
 502
 503         while (((len == -1)||(i < len)) && (*current != '\0')) {
 504                 c = g_utf8_get_char (current);
 505                 next_current = g_utf8_next_char (current);
 506                 if (next_current && *next_current != '\0')
 507                         next_c = g_utf8_get_char (g_utf8_next_char (current));
 508                 else
 509                         next_c = 0;
 510                 if (c != 0x2022 && c != 0xfffc &&
 511                     c != g_utf8_get_char ("\n") &&
 512                     c != g_utf8_get_char ("\t"))
 513                         str = g_string_append_unichar (str, c);
 514                 if (!quoted && ((c == g_utf8_get_char(",") || c == g_utf8_get_char (";")))) {
 515                         if ((next_c != 0) && (next_c != g_utf8_get_char ("\n")))
 516                                 str = g_string_append_c (str, '\n');
 517                 }
 518                 if (c == g_utf8_get_char ("\""))
 519                         quoted = !quoted;
 520                 current = g_utf8_next_char (current);
 521                 i = current - text;
 522         }
 523         return g_string_free (str, FALSE);
 524 }
 525
 526 static void
 527 modest_recpt_editor_on_insert_text (GtkTextBuffer *buffer,
 528                                     GtkTextIter *location,
 529                                     gchar *text,
 530                                     gint len,
 531                                     ModestRecptEditor *editor)
 532 {
 533         GtkTextIter prev;
 534         gunichar prev_char;
 535         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 536
 537         if (!is_valid_insert (text, len)) {
 538                 gchar *new_text = create_valid_text (text, len);
 539                 g_signal_stop_emission_by_name (G_OBJECT (buffer), "insert-text");
 540                 gtk_text_buffer_insert (buffer, location, new_text, -1);
 541                 g_free (new_text);
 542                 return;
 543         }
 544
 545         if (iter_has_recipient (location)) {
 546                 gtk_text_buffer_get_end_iter (buffer, location);
 547                 gtk_text_buffer_place_cursor (buffer, location);
 548         }
 549
 550         if (gtk_text_iter_is_start (location))
 551                 return;
 552
 553         if (gtk_text_iter_is_end (location)) {
 554                 prev = *location;
 555                 if (!gtk_text_iter_backward_char (&prev))
 556                         return;
 557                 prev_char = gtk_text_iter_get_char (&prev);
 558                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 559                 if ((prev_char == ';'||prev_char == ',')&&(!quote_opened(location))) {
 560                         GtkTextMark *insert;
 561                         gtk_text_buffer_insert (buffer, location, "\n",-1);
 562                         insert = gtk_text_buffer_get_insert (buffer);
 563                         gtk_text_view_scroll_to_iter (GTK_TEXT_VIEW (priv->text_view), location, 0.0,TRUE, 0.0, 1.0);
 564                 }
 565                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 566
 567         }
 568
 569 }
 570
 571 static GtkTextTag *
 572 iter_has_recipient (GtkTextIter *iter)
 573 {
 574         GSList *tags, *node;
 575         GtkTextTag *result = NULL;
 576
 577         tags = gtk_text_iter_get_tags (iter);
 578
 579         for (node = tags; node != NULL; node = g_slist_next (node)) {
 580                 GtkTextTag *tag = GTK_TEXT_TAG (node->data);
 581
 582                 if (g_object_get_data (G_OBJECT (tag), "recipient-tag-id")) {
 583                         result = tag;
 584                         break;
 585                 }
 586         }
 587         g_slist_free (tags);
 588         return result;
 589 }
 590
 591 static GtkTextTag *
 592 prev_iter_has_recipient (GtkTextIter *iter)
 593 {
 594         GtkTextIter prev;
 595
 596         prev = *iter;
 597         gtk_text_iter_backward_char (&prev);
 598         return iter_has_recipient (&prev);
 599 }
 600
 601 /* static GtkTextTag * */
 602 /* next_iter_has_recipient (GtkTextIter *iter) */
 603 /* { */
 604 /*      GtkTextIter next; */
 605
 606 /*      next = *iter; */
 607 /*      return iter_has_recipient (&next); */
 608 /* } */
 609
 610 static gunichar
 611 iter_previous_char (GtkTextIter *iter)
 612 {
 613         GtkTextIter prev;
 614
 615         prev = *iter;
 616         gtk_text_iter_backward_char (&prev);
 617         return gtk_text_iter_get_char (&prev);
 618 }
 619
 620 /* static gunichar  */
 621 /* iter_next_char (GtkTextIter *iter) */
 622 /* { */
 623 /*      GtkTextIter next; */
 624
 625 /*      next = *iter; */
 626 /*      gtk_text_iter_forward_char (&next); */
 627 /*      return gtk_text_iter_get_char (&next); */
 628 /* } */
 629
 630 static void
 631 select_tag_of_iter (GtkTextIter *iter, GtkTextTag *tag)
 632 {
 633         GtkTextIter start, end;
 634
 635         start = *iter;
 636         if (!gtk_text_iter_begins_tag (&start, tag))
 637                 gtk_text_iter_backward_to_tag_toggle (&start, tag);
 638         end = *iter;
 639         if (!gtk_text_iter_ends_tag (&end, tag))
 640                 gtk_text_iter_forward_to_tag_toggle (&end, tag);
 641         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &start, &end);
 642 }
 643
 644 static gboolean
 645 quote_opened (GtkTextIter *iter)
 646 {
 647         GtkTextIter start;
 648         GtkTextBuffer *buffer;
 649         gboolean opened = FALSE;
 650
 651         buffer = gtk_text_iter_get_buffer (iter);
 652         gtk_text_buffer_get_start_iter (buffer, &start);
 653
 654         while (!gtk_text_iter_equal (&start, iter)) {
 655                 gunichar current_char = gtk_text_iter_get_char (&start);
 656                 if (current_char == '"')
 657                         opened = !opened;
 658                 else if (current_char == '\\')
 659                         gtk_text_iter_forward_char (&start);
 660                 if (!gtk_text_iter_equal (&start, iter))
 661                         gtk_text_iter_forward_char (&start);
 662
 663         }
 664         return opened;
 665
 666 }
 667
 668
 669 static gboolean
 670 modest_recpt_editor_on_key_press_event (GtkTextView *text_view,
 671                                           GdkEventKey *key,
 672                                           ModestRecptEditor *editor)
 673 {
 674         GtkTextMark *insert;
 675         GtkTextBuffer * buffer;
 676         GtkTextIter location;
 677         GtkTextTag *tag;
 678
 679         buffer = gtk_text_view_get_buffer (text_view);
 680         insert = gtk_text_buffer_get_insert (buffer);
 681
 682         /* cases to cover:
 683          *    * cursor is on resolved recipient:
 684          *        - right should go to first character after the recipient (usually ; or ,)
 685          *        - left should fo to the first character before the recipient
 686          *        - return should run check names on the recipient.
 687          *    * cursor is just after a recipient:
 688          *        - right should go to the next character. If it's a recipient, should select
 689          *          it
 690          *        - left should go to the previous character. If it's a recipient, should go
 691          *          to the first character of the recipient, and select it.
 692          *    * cursor is on arbitrary text:
 693          *        - return should add a ; and go to the next line
 694          *        - left or right standard ones.
 695          *    * cursor is after a \n:
 696          *        - left should go to the character before the \n (as if \n was not a character)
 697          *    * cursor is before a \n:
 698          *        - right should go to the character after the \n
 699          */
 700
 701         gtk_text_buffer_get_iter_at_mark (buffer, &location, insert);
 702
 703         switch (key->keyval) {
 704         case GDK_Left:
 705         case GDK_KP_Left:
 706         {
 707                 gboolean cursor_ready = FALSE;
 708                 while (!cursor_ready) {
 709                         if (iter_previous_char (&location) == '\n') {
 710                                 gtk_text_iter_backward_char (&location);
 711                         } else {
 712                                 cursor_ready = TRUE;
 713                         }
 714                 }
 715                 tag = iter_has_recipient (&location);
 716                 if ((tag != NULL)&& (gtk_text_iter_is_start (&location) || !(gtk_text_iter_begins_tag (&location, tag)))) {
 717                         select_tag_of_iter (&location, tag);
 718                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 719                         return TRUE;
 720                 }
 721                 gtk_text_iter_backward_char (&location);
 722                 tag = iter_has_recipient (&location);
 723                 if (tag != NULL)
 724                         select_tag_of_iter (&location, tag);
 725                 else {
 726                         gtk_text_buffer_place_cursor (buffer, &location);
 727                 }
 728                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 729
 730                 return TRUE;
 731         }
 732         break;
 733         case GDK_Right:
 734         case GDK_KP_Right:
 735         {
 736                 gboolean cursor_moved = FALSE;
 737
 738                 tag = iter_has_recipient (&location);
 739                 if ((tag != NULL)&&(!gtk_text_iter_ends_tag (&location, tag))) {
 740                         gtk_text_iter_forward_to_tag_toggle (&location, tag);
 741                         while (gtk_text_iter_get_char (&location) == '\n')
 742                                 gtk_text_iter_forward_char (&location);
 743                         gtk_text_buffer_place_cursor (buffer, &location);
 744                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 745                         return TRUE;
 746                 }
 747
 748                 while (gtk_text_iter_get_char (&location) == '\n') {
 749                         gtk_text_iter_forward_char (&location);
 750                         cursor_moved = TRUE;
 751                 }
 752                 if (!cursor_moved)
 753                         gtk_text_iter_forward_char (&location);
 754                 while (gtk_text_iter_get_char (&location) == '\n') {
 755                         gtk_text_iter_forward_char (&location);
 756                         cursor_moved = TRUE;
 757                 }
 758
 759                 tag = iter_has_recipient (&location);
 760                 if (tag != NULL)
 761                         select_tag_of_iter (&location, tag);
 762                 else
 763                         gtk_text_buffer_place_cursor (buffer, &location);
 764                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 765                 return TRUE;
 766         }
 767         break;
 768         case GDK_Return:
 769         case GDK_KP_Enter:
 770         {
 771                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 772                 tag = iter_has_recipient (&location);
 773                 if (tag != NULL) {
 774                         gtk_text_buffer_get_end_iter (buffer, &location);
 775                         gtk_text_buffer_place_cursor (buffer, &location);
 776                         if ((iter_previous_char (&location) != ';')&&(iter_previous_char (&location) != ','))
 777                                 gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
 778                         gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
 779                 } else {
 780                         gunichar prev_char = iter_previous_char (&location);
 781                         if ((gtk_text_iter_is_start (&location))||(prev_char == '\n')
 782                             ||(prev_char == ';')||(prev_char == ','))
 783                                 g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
 784                         else {
 785                                 if ((prev_char != ';') && (prev_char != ','))
 786                                         gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
 787                                 gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
 788                         }
 789                 }
 790                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 791                 return TRUE;
 792         }
 793         break;
 794         case GDK_BackSpace:
 795         {
 796                 #if GTK_CHECK_VERSION(2, 10, 0) /* gtk_text_buffer_get_has_selection is only available in GTK+ 2.10 */
 797                 if (gtk_text_buffer_get_has_selection (buffer)) {
 798                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 799                         return TRUE;
 800                 }
 801                 #else
 802                 if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
 803                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 804                         return TRUE;
 805                 }
 806                 #endif
 807
 808                 tag = prev_iter_has_recipient (&location);
 809                 if (tag != NULL) {
 810                         GtkTextIter iter_in_tag;
 811                         iter_in_tag = location;
 812                         gtk_text_iter_backward_char (&iter_in_tag);
 813                         select_tag_of_iter (&iter_in_tag, tag);
 814                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 815                         return TRUE;
 816                 }
 817                 return FALSE;
 818         }
 819         break;
 820         default:
 821                 return FALSE;
 822         }
 823 }
 824
 825 static void
 826 modest_recpt_editor_move_cursor_to_end (ModestRecptEditor *editor)
 827 {
 828         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 829         GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 830         GtkTextIter start, end;
 831
 832         gtk_text_buffer_get_end_iter (buffer, &start);
 833         end = start;
 834         gtk_text_buffer_select_range (buffer, &start, &end);
 835
 836
 837 }
 838
 839 void
 840 modest_recpt_editor_grab_focus (ModestRecptEditor *recpt_editor)
 841 {
 842         ModestRecptEditorPrivate *priv;
 843
 844         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 845         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 846
 847         gtk_widget_grab_focus (priv->text_view);
 848 }
 849
 850 static void
 851 modest_recpt_editor_finalize (GObject *object)
 852 {
 853         ModestRecptEditorPrivate *priv;
 854         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (object);
 855
 856         if (priv->recipients) {
 857                 g_free (priv->recipients);
 858                 priv->recipients = NULL;
 859         }
 860
 861         (*parent_class->finalize) (object);
 862
 863         return;
 864 }
 865
 866 static void
 867 modest_recpt_editor_class_init (ModestRecptEditorClass *klass)
 868 {
 869         GObjectClass *object_class;
 870         GtkWidgetClass *widget_class;
 871
 872         parent_class = g_type_class_peek_parent (klass);
 873         object_class = (GObjectClass*) klass;
 874         widget_class = GTK_WIDGET_CLASS (klass);
 875
 876         object_class->finalize = modest_recpt_editor_finalize;
 877
 878         g_type_class_add_private (object_class, sizeof (ModestRecptEditorPrivate));
 879
 880         signals[OPEN_ADDRESSBOOK_SIGNAL] =
 881                 g_signal_new ("open-addressbook",
 882                               G_TYPE_FROM_CLASS (object_class),
 883                               G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
 884                               G_STRUCT_OFFSET (ModestRecptEditorClass, open_addressbook),
 885                               NULL, NULL,
 886                               g_cclosure_marshal_VOID__VOID,
 887                               G_TYPE_NONE, 0);
 888
 889         return;
 890 }
 891
 892 GType
 893 modest_recpt_editor_get_type (void)
 894 {
 895         static GType type = 0;
 896
 897         if (G_UNLIKELY(type == 0))
 898         {
 899                 static const GTypeInfo info =
 900                 {
 901                   sizeof (ModestRecptEditorClass),
 902                   NULL,   /* base_init */
 903                   NULL,   /* base_finalize */
 904                   (GClassInitFunc) modest_recpt_editor_class_init,   /* class_init */
 905                   NULL,   /* class_finalize */
 906                   NULL,   /* class_data */
 907                   sizeof (ModestRecptEditor),
 908                   0,      /* n_preallocs */
 909                   modest_recpt_editor_instance_init    /* instance_init */
 910                 };
 911
 912                 type = g_type_register_static (GTK_TYPE_HBOX,
 913                         "ModestRecptEditor",
 914                         &info, 0);
 915
 916         }
 917
 918         return type;
 919 }