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), 5);
 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         const gchar *current, *next_current;
 455         if (text == NULL)
 456                 return TRUE;
 457         current = text;
 458
 459         while (((len == -1)||(i < len)) && (*current != '\0')) {
 460                 c = g_utf8_get_char (current);
 461                 next_current = g_utf8_next_char (current);
 462                 if (next_current && *next_current != '\0')
 463                         next_c = g_utf8_get_char (g_utf8_next_char (current));
 464                 else
 465                         next_c = 0;
 466                 if (c == g_utf8_get_char(",") || c == g_utf8_get_char (";")) {
 467                         if ((next_c != 0) && (next_c != g_utf8_get_char ("\n")))
 468                                 return FALSE;
 469                 }
 470                 if (c == 0x2022 || c == 0xfffc ||
 471                     c == g_utf8_get_char ("\n") ||
 472                     c == g_utf8_get_char ("\t"))
 473                         return FALSE;
 474                 current = g_utf8_next_char (current);
 475                 i = current - text;
 476         }
 477         return TRUE;
 478 }
 479
 480 static gchar *
 481 create_valid_text (const gchar *text, gint len)
 482 {
 483         gunichar c;
 484         gunichar next_c;
 485         gint i= 0;
 486         GString *str;
 487         const gchar *current, *next_current;
 488
 489         if (text == NULL)
 490                 return NULL;
 491
 492         str = g_string_new ("");
 493         current = text;
 494
 495         while (((len == -1)||(i < len)) && (*current != '\0')) {
 496                 c = g_utf8_get_char (current);
 497                 next_current = g_utf8_next_char (current);
 498                 if (next_current && *next_current != '\0')
 499                         next_c = g_utf8_get_char (g_utf8_next_char (current));
 500                 else
 501                         next_c = 0;
 502                 if (c != 0x2022 && c != 0xfffc &&
 503                     c != g_utf8_get_char ("\n") &&
 504                     c != g_utf8_get_char ("\t"))
 505                         str = g_string_append_unichar (str, c);
 506                 if (c == g_utf8_get_char(",") || c == g_utf8_get_char (";")) {
 507                         if ((next_c != 0) && (next_c != g_utf8_get_char ("\n")))
 508                                 str = g_string_append_c (str, '\n');
 509                 }
 510                 current = g_utf8_next_char (current);
 511                 i = current - text;
 512         }
 513         return g_string_free (str, FALSE);
 514 }
 515
 516 static void
 517 modest_recpt_editor_on_insert_text (GtkTextBuffer *buffer,
 518                                     GtkTextIter *location,
 519                                     gchar *text,
 520                                     gint len,
 521                                     ModestRecptEditor *editor)
 522 {
 523         GtkTextIter prev;
 524         gunichar prev_char;
 525         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 526
 527         if (!is_valid_insert (text, len)) {
 528                 gchar *new_text = create_valid_text (text, len);
 529                 g_signal_stop_emission_by_name (G_OBJECT (buffer), "insert-text");
 530                 gtk_text_buffer_insert (buffer, location, new_text, -1);
 531                 g_free (new_text);
 532         }
 533
 534         if (iter_has_recipient (location)) {
 535                 gtk_text_buffer_get_end_iter (buffer, location);
 536                 gtk_text_buffer_place_cursor (buffer, location);
 537         }
 538
 539         if (gtk_text_iter_is_start (location))
 540                 return;
 541
 542         if (gtk_text_iter_is_end (location)) {
 543                 prev = *location;
 544                 if (!gtk_text_iter_backward_char (&prev))
 545                         return;
 546                 prev_char = gtk_text_iter_get_char (&prev);
 547                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 548                 if ((prev_char == ';'||prev_char == ',')&&(!quote_opened(location))) {
 549                         GtkTextMark *insert;
 550                         gtk_text_buffer_insert (buffer, location, "\n",-1);
 551                         insert = gtk_text_buffer_get_insert (buffer);
 552                         gtk_text_view_scroll_to_iter (GTK_TEXT_VIEW (priv->text_view), location, 0.0,TRUE, 0.0, 1.0);
 553                 }
 554                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 555
 556         }
 557
 558 }
 559
 560 static GtkTextTag *
 561 iter_has_recipient (GtkTextIter *iter)
 562 {
 563         GSList *tags, *node;
 564         GtkTextTag *result = NULL;
 565
 566         tags = gtk_text_iter_get_tags (iter);
 567
 568         for (node = tags; node != NULL; node = g_slist_next (node)) {
 569                 GtkTextTag *tag = GTK_TEXT_TAG (node->data);
 570
 571                 if (g_object_get_data (G_OBJECT (tag), "recipient-tag-id")) {
 572                         result = tag;
 573                         break;
 574                 }
 575         }
 576         g_slist_free (tags);
 577         return result;
 578 }
 579
 580 static GtkTextTag *
 581 prev_iter_has_recipient (GtkTextIter *iter)
 582 {
 583         GtkTextIter prev;
 584
 585         prev = *iter;
 586         gtk_text_iter_backward_char (&prev);
 587         return iter_has_recipient (&prev);
 588 }
 589
 590 /* static GtkTextTag * */
 591 /* next_iter_has_recipient (GtkTextIter *iter) */
 592 /* { */
 593 /*      GtkTextIter next; */
 594
 595 /*      next = *iter; */
 596 /*      return iter_has_recipient (&next); */
 597 /* } */
 598
 599 static gunichar
 600 iter_previous_char (GtkTextIter *iter)
 601 {
 602         GtkTextIter prev;
 603
 604         prev = *iter;
 605         gtk_text_iter_backward_char (&prev);
 606         return gtk_text_iter_get_char (&prev);
 607 }
 608
 609 /* static gunichar  */
 610 /* iter_next_char (GtkTextIter *iter) */
 611 /* { */
 612 /*      GtkTextIter next; */
 613
 614 /*      next = *iter; */
 615 /*      gtk_text_iter_forward_char (&next); */
 616 /*      return gtk_text_iter_get_char (&next); */
 617 /* } */
 618
 619 static void
 620 select_tag_of_iter (GtkTextIter *iter, GtkTextTag *tag)
 621 {
 622         GtkTextIter start, end;
 623
 624         start = *iter;
 625         if (!gtk_text_iter_begins_tag (&start, tag))
 626                 gtk_text_iter_backward_to_tag_toggle (&start, tag);
 627         end = *iter;
 628         if (!gtk_text_iter_ends_tag (&end, tag))
 629                 gtk_text_iter_forward_to_tag_toggle (&end, tag);
 630         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &start, &end);
 631 }
 632
 633 static gboolean
 634 quote_opened (GtkTextIter *iter)
 635 {
 636         GtkTextIter start;
 637         GtkTextBuffer *buffer;
 638         gboolean opened = FALSE;
 639
 640         buffer = gtk_text_iter_get_buffer (iter);
 641         gtk_text_buffer_get_start_iter (buffer, &start);
 642
 643         while (!gtk_text_iter_equal (&start, iter)) {
 644                 gunichar current_char = gtk_text_iter_get_char (&start);
 645                 if (current_char == '"')
 646                         opened = !opened;
 647                 else if (current_char == '\\')
 648                         gtk_text_iter_forward_char (&start);
 649                 if (!gtk_text_iter_equal (&start, iter))
 650                         gtk_text_iter_forward_char (&start);
 651
 652         }
 653         return opened;
 654
 655 }
 656
 657
 658 static gboolean
 659 modest_recpt_editor_on_key_press_event (GtkTextView *text_view,
 660                                           GdkEventKey *key,
 661                                           ModestRecptEditor *editor)
 662 {
 663         GtkTextMark *insert;
 664         GtkTextBuffer * buffer;
 665         GtkTextIter location;
 666         GtkTextTag *tag;
 667
 668         buffer = gtk_text_view_get_buffer (text_view);
 669         insert = gtk_text_buffer_get_insert (buffer);
 670
 671         /* cases to cover:
 672          *    * cursor is on resolved recipient:
 673          *        - right should go to first character after the recipient (usually ; or ,)
 674          *        - left should fo to the first character before the recipient
 675          *        - return should run check names on the recipient.
 676          *    * cursor is just after a recipient:
 677          *        - right should go to the next character. If it's a recipient, should select
 678          *          it
 679          *        - left should go to the previous character. If it's a recipient, should go
 680          *          to the first character of the recipient, and select it.
 681          *    * cursor is on arbitrary text:
 682          *        - return should add a ; and go to the next line
 683          *        - left or right standard ones.
 684          *    * cursor is after a \n:
 685          *        - left should go to the character before the \n (as if \n was not a character)
 686          *    * cursor is before a \n:
 687          *        - right should go to the character after the \n
 688          */
 689
 690         gtk_text_buffer_get_iter_at_mark (buffer, &location, insert);
 691
 692         switch (key->keyval) {
 693         case GDK_Left:
 694         case GDK_KP_Left:
 695         {
 696                 gboolean cursor_ready = FALSE;
 697                 while (!cursor_ready) {
 698                         if (iter_previous_char (&location) == '\n') {
 699                                 gtk_text_iter_backward_char (&location);
 700                         } else {
 701                                 cursor_ready = TRUE;
 702                         }
 703                 }
 704                 tag = iter_has_recipient (&location);
 705                 if ((tag != NULL)&& (gtk_text_iter_is_start (&location) || !(gtk_text_iter_begins_tag (&location, tag)))) {
 706                         select_tag_of_iter (&location, tag);
 707                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 708                         return TRUE;
 709                 }
 710                 gtk_text_iter_backward_char (&location);
 711                 tag = iter_has_recipient (&location);
 712                 if (tag != NULL)
 713                         select_tag_of_iter (&location, tag);
 714                 else {
 715                         gtk_text_buffer_place_cursor (buffer, &location);
 716                 }
 717                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 718
 719                 return TRUE;
 720         }
 721         break;
 722         case GDK_Right:
 723         case GDK_KP_Right:
 724         {
 725                 gboolean cursor_moved = FALSE;
 726
 727                 tag = iter_has_recipient (&location);
 728                 if ((tag != NULL)&&(!gtk_text_iter_ends_tag (&location, tag))) {
 729                         gtk_text_iter_forward_to_tag_toggle (&location, tag);
 730                         while (gtk_text_iter_get_char (&location) == '\n')
 731                                 gtk_text_iter_forward_char (&location);
 732                         gtk_text_buffer_place_cursor (buffer, &location);
 733                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 734                         return TRUE;
 735                 }
 736
 737                 while (gtk_text_iter_get_char (&location) == '\n') {
 738                         gtk_text_iter_forward_char (&location);
 739                         cursor_moved = TRUE;
 740                 }
 741                 if (!cursor_moved)
 742                         gtk_text_iter_forward_char (&location);
 743                 while (gtk_text_iter_get_char (&location) == '\n') {
 744                         gtk_text_iter_forward_char (&location);
 745                         cursor_moved = TRUE;
 746                 }
 747
 748                 tag = iter_has_recipient (&location);
 749                 if (tag != NULL)
 750                         select_tag_of_iter (&location, tag);
 751                 else
 752                         gtk_text_buffer_place_cursor (buffer, &location);
 753                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 754                 return TRUE;
 755         }
 756         break;
 757         case GDK_Return:
 758         case GDK_KP_Enter:
 759         {
 760                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 761                 tag = iter_has_recipient (&location);
 762                 if (tag != NULL) {
 763                         gtk_text_buffer_get_end_iter (buffer, &location);
 764                         gtk_text_buffer_place_cursor (buffer, &location);
 765                         if ((iter_previous_char (&location) != ';')&&(iter_previous_char (&location) != ','))
 766                                 gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
 767                         gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
 768                 } else {
 769                         gunichar prev_char = iter_previous_char (&location);
 770                         if ((gtk_text_iter_is_start (&location))||(prev_char == '\n')
 771                             ||(prev_char == ';')||(prev_char == ','))
 772                                 g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
 773                         else {
 774                                 if ((prev_char != ';') && (prev_char != ','))
 775                                         gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
 776                                 gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
 777                         }
 778                 }
 779                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 780                 return TRUE;
 781         }
 782         break;
 783         case GDK_BackSpace:
 784         {
 785                 #if GTK_CHECK_VERSION(2, 10, 0) /* gtk_text_buffer_get_has_selection is only available in GTK+ 2.10 */
 786                 if (gtk_text_buffer_get_has_selection (buffer)) {
 787                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 788                         return TRUE;
 789                 }
 790                 #else
 791                 if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
 792                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 793                         return TRUE;
 794                 }
 795                 #endif
 796
 797                 tag = prev_iter_has_recipient (&location);
 798                 if (tag != NULL) {
 799                         GtkTextIter iter_in_tag;
 800                         iter_in_tag = location;
 801                         gtk_text_iter_backward_char (&iter_in_tag);
 802                         select_tag_of_iter (&iter_in_tag, tag);
 803                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 804                         return TRUE;
 805                 }
 806                 return FALSE;
 807         }
 808         break;
 809         default:
 810                 return FALSE;
 811         }
 812 }
 813
 814 static void
 815 modest_recpt_editor_move_cursor_to_end (ModestRecptEditor *editor)
 816 {
 817         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 818         GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 819         GtkTextIter start, end;
 820
 821         gtk_text_buffer_get_end_iter (buffer, &start);
 822         end = start;
 823         gtk_text_buffer_select_range (buffer, &start, &end);
 824
 825
 826 }
 827
 828 void
 829 modest_recpt_editor_grab_focus (ModestRecptEditor *recpt_editor)
 830 {
 831         ModestRecptEditorPrivate *priv;
 832
 833         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 834         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 835
 836         gtk_widget_grab_focus (priv->text_view);
 837 }
 838
 839 static void
 840 modest_recpt_editor_finalize (GObject *object)
 841 {
 842         ModestRecptEditorPrivate *priv;
 843         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (object);
 844
 845         if (priv->recipients) {
 846                 g_free (priv->recipients);
 847                 priv->recipients = NULL;
 848         }
 849
 850         (*parent_class->finalize) (object);
 851
 852         return;
 853 }
 854
 855 static void
 856 modest_recpt_editor_class_init (ModestRecptEditorClass *klass)
 857 {
 858         GObjectClass *object_class;
 859         GtkWidgetClass *widget_class;
 860
 861         parent_class = g_type_class_peek_parent (klass);
 862         object_class = (GObjectClass*) klass;
 863         widget_class = GTK_WIDGET_CLASS (klass);
 864
 865         object_class->finalize = modest_recpt_editor_finalize;
 866
 867         g_type_class_add_private (object_class, sizeof (ModestRecptEditorPrivate));
 868
 869         signals[OPEN_ADDRESSBOOK_SIGNAL] =
 870                 g_signal_new ("open-addressbook",
 871                               G_TYPE_FROM_CLASS (object_class),
 872                               G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
 873                               G_STRUCT_OFFSET (ModestRecptEditorClass, open_addressbook),
 874                               NULL, NULL,
 875                               g_cclosure_marshal_VOID__VOID,
 876                               G_TYPE_NONE, 0);
 877
 878         return;
 879 }
 880
 881 GType
 882 modest_recpt_editor_get_type (void)
 883 {
 884         static GType type = 0;
 885
 886         if (G_UNLIKELY(type == 0))
 887         {
 888                 static const GTypeInfo info =
 889                 {
 890                   sizeof (ModestRecptEditorClass),
 891                   NULL,   /* base_init */
 892                   NULL,   /* base_finalize */
 893                   (GClassInitFunc) modest_recpt_editor_class_init,   /* class_init */
 894                   NULL,   /* class_finalize */
 895                   NULL,   /* class_data */
 896                   sizeof (ModestRecptEditor),
 897                   0,      /* n_preallocs */
 898                   modest_recpt_editor_instance_init    /* instance_init */
 899                 };
 900
 901                 type = g_type_register_static (GTK_TYPE_HBOX,
 902                         "ModestRecptEditor",
 903                         &info, 0);
 904
 905         }
 906
 907         return type;
 908 }