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 <gtk/gtk.h>
  33
  34 #include <modest-text-utils.h>
  35 #include <modest-recpt-editor.h>
  36 #include <modest-scroll-text.h>
  37 #include <pango/pango-attributes.h>
  38 #include <string.h>
  39 #include <gdk/gdkkeysyms.h>
  40 #include <gtk/gtk.h>
  41 #include <modest-ui-constants.h>
  42 #include <modest-toolkit-factory.h>
  43 #include <modest-runtime.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         buffer = modest_text_view_get_buffer (priv->text_view);
 147
 148         valid_recipients = create_valid_text (recipients, -1);
 149         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 150         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text_after, recpt_editor);
 151         gtk_text_buffer_set_text (buffer, valid_recipients, -1);
 152         g_free (valid_recipients);
 153         if (GTK_WIDGET_REALIZED (recpt_editor))
 154                 gtk_widget_queue_resize (GTK_WIDGET (recpt_editor));
 155         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 156         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text_after, recpt_editor);
 157
 158 }
 159
 160 void
 161 modest_recpt_editor_add_recipients (ModestRecptEditor *recpt_editor, const gchar *recipients)
 162 {
 163         ModestRecptEditorPrivate *priv;
 164         GtkTextBuffer *buffer = NULL;
 165         GtkTextIter iter;
 166         gchar *string_to_add;
 167
 168         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 169         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 170
 171         if (recipients == NULL)
 172                 return;
 173
 174         buffer = modest_text_view_get_buffer (priv->text_view);
 175
 176         if (gtk_text_buffer_get_char_count (buffer) > 0) {
 177                 string_to_add = g_strconcat (";\n", recipients, NULL);
 178         } else {
 179                 string_to_add = g_strdup (recipients);
 180         }
 181
 182         gtk_text_buffer_get_end_iter (buffer, &iter);
 183
 184         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 185         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text_after, recpt_editor);
 186
 187         gtk_text_buffer_insert (buffer, &iter, string_to_add, -1);
 188
 189         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 190         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text_after, recpt_editor);
 191
 192         if (GTK_WIDGET_REALIZED (recpt_editor))
 193                 gtk_widget_queue_resize (GTK_WIDGET (recpt_editor));
 194
 195         g_free (string_to_add);
 196 }
 197
 198 void
 199 modest_recpt_editor_add_resolved_recipient (ModestRecptEditor *recpt_editor, GSList *email_list, const gchar * recipient_id)
 200 {
 201         ModestRecptEditorPrivate *priv;
 202         GtkTextBuffer *buffer = NULL;
 203         GtkTextIter start, end, iter;
 204         GSList *node;
 205         gboolean is_first_recipient = TRUE;
 206
 207         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 208         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 209
 210         buffer = modest_text_view_get_buffer (priv->text_view);
 211
 212         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 213         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text_after, recpt_editor);
 214         gtk_text_buffer_get_bounds (buffer, &start, &end);
 215         if (gtk_text_buffer_get_char_count (buffer) > 0) {
 216                 gchar * buffer_contents;
 217
 218                 gtk_text_buffer_get_bounds (buffer, &start, &end);
 219                 buffer_contents = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 220                 g_strstrip (buffer_contents);
 221                 if (!g_str_has_suffix (buffer_contents, "\n")) {
 222                         if (g_str_has_suffix (buffer_contents, ";")||(g_str_has_suffix (buffer_contents, ",")))
 223                                 gtk_text_buffer_insert (buffer, &end, "\n", -1);
 224                         else
 225                                 gtk_text_buffer_insert (buffer, &end, ";\n", -1);
 226                 }
 227                 g_free (buffer_contents);
 228         }
 229
 230         gtk_text_buffer_get_end_iter (buffer, &iter);
 231
 232         for (node = email_list; node != NULL; node = g_slist_next (node)) {
 233                 gchar *recipient = (gchar *) node->data;
 234
 235                 if ((recipient) && (strlen (recipient) != 0)) {
 236
 237                         if (!is_first_recipient)
 238                                 gtk_text_buffer_insert (buffer, &iter, "\n", -1);
 239
 240                         gtk_text_buffer_insert (buffer, &iter, recipient, -1);
 241                         gtk_text_buffer_insert (buffer, &iter, ";", -1);
 242                         is_first_recipient = FALSE;
 243                 }
 244         }
 245         modest_recpt_editor_add_tags (recpt_editor, recipient_id);
 246
 247         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 248         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text_after, recpt_editor);
 249 }
 250
 251 void
 252 modest_recpt_editor_replace_with_resolved_recipient (ModestRecptEditor *recpt_editor,
 253                                                      GtkTextIter *start, GtkTextIter *end,
 254                                                      GSList *email_list, const gchar * recipient_id)
 255 {
 256         GSList *email_lists_list;
 257         GSList *recipient_ids_list;
 258
 259         email_lists_list = g_slist_append (NULL, email_list);
 260         recipient_ids_list = g_slist_append (NULL, (gpointer) recipient_id);
 261
 262         modest_recpt_editor_replace_with_resolved_recipients (recpt_editor, start, end,
 263                                                               email_lists_list, recipient_ids_list);
 264
 265         g_slist_free (email_lists_list);
 266         g_slist_free (recipient_ids_list);
 267
 268 }
 269
 270 void
 271 modest_recpt_editor_replace_with_resolved_recipients (ModestRecptEditor *recpt_editor,
 272                                                      GtkTextIter *start, GtkTextIter *end,
 273                                                      GSList *email_lists_list, GSList * recipient_ids_list)
 274 {
 275         ModestRecptEditorPrivate *priv;
 276         GtkTextBuffer *buffer;
 277         GtkTextTag *tag;
 278         GSList *node;
 279         gboolean is_first_recipient = TRUE;
 280
 281         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 282         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 283
 284         buffer = modest_text_view_get_buffer (priv->text_view);
 285         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 286         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text_after, recpt_editor);
 287
 288         gtk_text_buffer_delete (buffer, start, end);
 289
 290         while (email_lists_list && recipient_ids_list) {
 291                 gchar *recipient_id = (gchar *) recipient_ids_list->data;
 292                 GSList *email_list = (GSList *) email_lists_list->data;
 293
 294                 tag = gtk_text_buffer_create_tag (buffer, NULL,
 295                                                   "underline", PANGO_UNDERLINE_SINGLE,
 296                                                   "wrap-mode", GTK_WRAP_NONE,
 297                                                   "editable", TRUE, NULL);
 298
 299                 g_object_set_data (G_OBJECT (tag), "recipient-tag-id", GINT_TO_POINTER (RECIPIENT_TAG_ID));
 300                 g_object_set_data_full (G_OBJECT (tag), "recipient-id", g_strdup (recipient_id), (GDestroyNotify) g_free);
 301
 302                 for (node = email_list; node != NULL; node = g_slist_next (node)) {
 303                         gchar *recipient = (gchar *) node->data;
 304
 305                         if ((recipient) && (strlen (recipient) != 0)) {
 306
 307                                 if (!is_first_recipient || !gtk_text_iter_is_start(start))
 308                                         gtk_text_buffer_insert (buffer, start, "\n", -1);
 309
 310                                 gtk_text_buffer_insert_with_tags (buffer, start, recipient, -1, tag, NULL);
 311
 312                                 if (node->next != NULL)
 313                                         gtk_text_buffer_insert (buffer, start, ";", -1);
 314                                 is_first_recipient = FALSE;
 315                         }
 316                 }
 317
 318                 email_lists_list = g_slist_next (email_lists_list);
 319                 recipient_ids_list = g_slist_next (recipient_ids_list);
 320
 321                 /* Add a separator between lists of emails*/
 322                 if (recipient_ids_list)
 323                         gtk_text_buffer_insert (buffer, start, ";", -1);
 324         }
 325         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 326         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text_after, recpt_editor);
 327
 328 }
 329
 330
 331 const gchar *
 332 modest_recpt_editor_get_recipients (ModestRecptEditor *recpt_editor)
 333 {
 334         ModestRecptEditorPrivate *priv;
 335         GtkTextBuffer *buffer = NULL;
 336         GtkTextIter start, end;
 337
 338         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), NULL);
 339         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 340
 341         if (priv->recipients != NULL) {
 342                 g_free (priv->recipients);
 343                 priv->recipients = NULL;
 344         }
 345
 346         buffer = modest_text_view_get_buffer (priv->text_view);
 347
 348         gtk_text_buffer_get_start_iter (buffer, &start);
 349         gtk_text_buffer_get_end_iter (buffer, &end);
 350
 351         priv->recipients = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 352
 353         return priv->recipients;
 354
 355 }
 356
 357 static void
 358 modest_recpt_editor_instance_init (GTypeInstance *instance, gpointer g_class)
 359 {
 360         ModestRecptEditorPrivate *priv;
 361         GtkWidget *abook_icon;
 362         GtkWidget *abook_align;
 363         GtkTextBuffer *buffer;
 364
 365         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (instance);
 366
 367         priv->show_abook = TRUE;
 368         priv->abook_button = gtk_button_new ();
 369         gtk_widget_set_no_show_all (GTK_WIDGET (priv->abook_button), TRUE);
 370         gtk_widget_show (priv->abook_button);
 371 #ifdef MODEST_TOOLKIT_HILDON2
 372         gtk_widget_set_size_request (priv->abook_button, RECPT_BUTTON_WIDTH_HILDON2, -1);
 373 #else
 374         gtk_button_set_relief (GTK_BUTTON (priv->abook_button), GTK_RELIEF_NONE);
 375 #endif
 376         gtk_button_set_focus_on_click (GTK_BUTTON (priv->abook_button), FALSE);
 377         GTK_WIDGET_UNSET_FLAGS (priv->abook_button, GTK_CAN_FOCUS);
 378         gtk_button_set_alignment (GTK_BUTTON (priv->abook_button), 0.5, 0.5);
 379 #ifdef MODEST_TOOLKIT_HILDON2
 380         abook_icon = gtk_image_new_from_icon_name ("general_contacts", HILDON_ICON_SIZE_FINGER);
 381 #else
 382         abook_icon = gtk_image_new_from_icon_name ("qgn_list_addressbook", GTK_ICON_SIZE_BUTTON);
 383 #endif
 384         gtk_container_add (GTK_CONTAINER (priv->abook_button), abook_icon);
 385
 386         priv->text_view = modest_toolkit_factory_create_text_view  (modest_runtime_get_toolkit_factory ());
 387         /* Auto-capitalization is the default, so let's turn it off: */
 388 #ifdef MAEMO_CHANGES
 389         hildon_gtk_text_view_set_input_mode (GTK_TEXT_VIEW (priv->text_view),
 390                 HILDON_GTK_INPUT_MODE_FULL);
 391 #endif
 392
 393         priv->recipients = NULL;
 394
 395 #ifdef MODEST_TOOLKIT_HILDON2
 396         priv->scrolled_window = NULL;
 397         gtk_box_pack_start (GTK_BOX (instance), priv->text_view, TRUE, TRUE, 0);
 398 #else
 399         priv->scrolled_window = modest_scroll_text_new (GTK_TEXT_VIEW (priv->text_view), 1024);
 400         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_POLICY_NEVER,
 401                                         GTK_POLICY_AUTOMATIC);
 402         gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_SHADOW_IN);
 403 /*      gtk_container_add (GTK_CONTAINER (priv->scrolled_window), priv->text_view); */
 404
 405         gtk_box_pack_start (GTK_BOX (instance), priv->scrolled_window, TRUE, TRUE, 0);
 406 /*      gtk_box_pack_start (GTK_BOX (instance), priv->text_view, TRUE, TRUE, 0); */
 407 #endif
 408         abook_align = gtk_alignment_new (0.0, 0.0, 1.0, 1.0);
 409         gtk_alignment_set_padding (GTK_ALIGNMENT (abook_align), 0, 0, MODEST_MARGIN_DEFAULT, 0);
 410         gtk_container_add (GTK_CONTAINER (abook_align), priv->abook_button);
 411         gtk_box_pack_end (GTK_BOX (instance), abook_align, FALSE, FALSE, 0);
 412
 413         gtk_text_view_set_accepts_tab (GTK_TEXT_VIEW (priv->text_view), FALSE);
 414         gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (priv->text_view), TRUE);
 415         gtk_text_view_set_editable (GTK_TEXT_VIEW (priv->text_view), TRUE);
 416
 417         gtk_text_view_set_justification (GTK_TEXT_VIEW (priv->text_view), GTK_JUSTIFY_LEFT);
 418         gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (priv->text_view), GTK_WRAP_CHAR);
 419
 420         gtk_widget_set_size_request (priv->text_view, 75, -1);
 421
 422         buffer = modest_text_view_get_buffer (priv->text_view);
 423         g_signal_connect (G_OBJECT (priv->abook_button), "clicked", G_CALLBACK (modest_recpt_editor_on_abook_clicked), instance);
 424         g_signal_connect (G_OBJECT (priv->text_view), "key-press-event", G_CALLBACK (modest_recpt_editor_on_key_press_event), instance);
 425         g_signal_connect (G_OBJECT (priv->text_view), "focus-in-event", G_CALLBACK (modest_recpt_editor_on_focus_in), instance);
 426         g_signal_connect (G_OBJECT (buffer), "insert-text",
 427                           G_CALLBACK (modest_recpt_editor_on_insert_text),
 428                           instance);
 429         g_signal_connect_after (G_OBJECT (buffer), "insert-text",
 430                                 G_CALLBACK (modest_recpt_editor_on_insert_text_after),
 431                                 instance);
 432
 433         priv->on_mark_set_handler = g_signal_connect (G_OBJECT (buffer), "mark-set",
 434                                                       G_CALLBACK (modest_recpt_editor_on_mark_set),
 435                                                       instance);
 436
 437         return;
 438 }
 439
 440 void
 441 modest_recpt_editor_set_field_size_group (ModestRecptEditor *recpt_editor, GtkSizeGroup *size_group)
 442 {
 443         ModestRecptEditorPrivate *priv;
 444
 445         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 446         g_return_if_fail (GTK_IS_SIZE_GROUP (size_group));
 447         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 448
 449 #ifdef MODEST_TOOLKIT_HILDON2
 450         gtk_size_group_add_widget (size_group, priv->text_view);
 451 #else
 452         gtk_size_group_add_widget (size_group, priv->scrolled_window);
 453 #endif
 454 }
 455
 456 GtkTextBuffer *
 457 modest_recpt_editor_get_buffer (ModestRecptEditor *recpt_editor)
 458 {
 459         ModestRecptEditorPrivate *priv;
 460
 461         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), NULL);
 462         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 463
 464         return modest_text_view_get_buffer (priv->text_view);
 465 }
 466
 467 static void
 468 modest_recpt_editor_on_abook_clicked (GtkButton *button, ModestRecptEditor *editor)
 469 {
 470         g_return_if_fail (MODEST_IS_RECPT_EDITOR (editor));
 471
 472         g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
 473 }
 474
 475 static void
 476 modest_recpt_editor_on_mark_set (GtkTextBuffer *buffer,
 477                                  GtkTextIter *iter,
 478                                  GtkTextMark *mark,
 479                                  ModestRecptEditor *recpt_editor)
 480 {
 481         ModestRecptEditorPrivate *priv;
 482         GtkTextIter insert_iter, selection_iter;
 483         GtkTextMark *selection_bound;
 484         GtkTextMark *insert;
 485         GtkTextTag *tag;
 486         gboolean selection_changed = FALSE;
 487         gboolean select_to_left;
 488
 489         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 490
 491         buffer = modest_recpt_editor_get_buffer (recpt_editor);
 492         selection_bound = gtk_text_buffer_get_selection_bound (buffer);
 493         insert = gtk_text_buffer_get_insert (buffer);
 494
 495         if (mark != selection_bound && mark != insert)
 496                 return;
 497
 498         gtk_text_buffer_get_iter_at_mark (buffer, &insert_iter, insert);
 499         gtk_text_buffer_get_iter_at_mark (buffer, &selection_iter, selection_bound);
 500
 501         select_to_left = gtk_text_iter_get_offset (&selection_iter) > gtk_text_iter_get_offset (&insert_iter);
 502
 503         tag = iter_has_recipient (&insert_iter);
 504         if (tag) {
 505                 if (select_to_left) {
 506                         if (!gtk_text_iter_begins_tag (&insert_iter, tag)) {
 507                                 gtk_text_iter_backward_to_tag_toggle (&insert_iter, tag);
 508                                 selection_changed = TRUE;
 509                         }
 510                 } else {
 511                         gtk_text_iter_forward_to_tag_toggle (&insert_iter, tag);
 512                         selection_changed = TRUE;
 513                 }
 514         }
 515
 516         tag = iter_has_recipient (&selection_iter);
 517         if (tag != NULL) {
 518                 if (select_to_left) {
 519                         gtk_text_iter_forward_to_tag_toggle (&selection_iter, tag);
 520                         selection_changed = TRUE;
 521                 } else {
 522                         if (!gtk_text_iter_begins_tag (&selection_iter, tag)) {
 523                                 gtk_text_iter_backward_to_tag_toggle (&selection_iter, tag);
 524                                 selection_changed = TRUE;
 525                         }
 526                 }
 527         }
 528
 529         if (selection_changed) {
 530                 /* We block this signal handler in order to prevent a
 531                    stack overflow caused by recursive calls to this
 532                    handler as the select_range call could issue a
 533                    "mark-set" signal */
 534                 g_signal_handler_block (buffer, priv->on_mark_set_handler);
 535                 gtk_text_buffer_select_range (buffer, &insert_iter, &selection_iter);
 536                 g_signal_handler_unblock (buffer, priv->on_mark_set_handler);
 537         }
 538 }
 539
 540 static gboolean
 541 modest_recpt_editor_on_focus_in (GtkTextView *text_view,
 542                                  GdkEventFocus *event,
 543                                  ModestRecptEditor *editor)
 544 {
 545         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 546         gtk_text_view_place_cursor_onscreen (GTK_TEXT_VIEW (priv->text_view));
 547
 548         return FALSE;
 549 }
 550
 551 static gboolean
 552 is_valid_insert (const gchar *text, gint len)
 553 {
 554         gunichar c;
 555         gunichar next_c;
 556         gint i= 0;
 557         gboolean quoted = FALSE;
 558         const gchar *current, *next_current;
 559         if (text == NULL)
 560                 return TRUE;
 561         current = text;
 562
 563         while (((len == -1)||(i < len)) && (*current != '\0')) {
 564                 c = g_utf8_get_char (current);
 565                 next_current = g_utf8_next_char (current);
 566                 if (next_current && *next_current != '\0')
 567                         next_c = g_utf8_get_char (g_utf8_next_char (current));
 568                 else
 569                         next_c = 0;
 570                 if (!quoted && ((c == g_utf8_get_char(",") || c == g_utf8_get_char (";")))) {
 571                         if ((next_c != 0) && (next_c != g_utf8_get_char ("\n")))
 572                                 return FALSE;
 573                         else {
 574                           current = g_utf8_next_char (next_current);
 575                           continue;
 576                         }
 577                 }
 578                 if (c == 0x2022 || c == 0xfffc ||
 579                     c == g_utf8_get_char ("\n") ||
 580                     c == g_utf8_get_char ("\t"))
 581                         return FALSE;
 582                 if (c == g_utf8_get_char ("\""))
 583                         quoted = !quoted;
 584                 current = g_utf8_next_char (current);
 585                 i = current - text;
 586         }
 587         return TRUE;
 588 }
 589
 590 static gchar *
 591 create_valid_text (const gchar *text, gint len)
 592 {
 593         gunichar c;
 594         gunichar next_c;
 595         gint i= 0;
 596         GString *str;
 597         gboolean quoted = FALSE;
 598         const gchar *current, *next_current;
 599
 600         if (text == NULL)
 601                 return NULL;
 602
 603         str = g_string_new ("");
 604         current = text;
 605
 606         while (((len == -1)||(i < len)) && (*current != '\0')) {
 607                 c = g_utf8_get_char (current);
 608                 next_current = g_utf8_next_char (current);
 609                 if (next_current && *next_current != '\0')
 610                         next_c = g_utf8_get_char (g_utf8_next_char (current));
 611                 else
 612                         next_c = 0;
 613                 if (c != 0x2022 && c != 0xfffc &&
 614                     c != g_utf8_get_char ("\n") &&
 615                     c != g_utf8_get_char ("\t"))
 616                         str = g_string_append_unichar (str, c);
 617                 if (!quoted && ((c == g_utf8_get_char(",") || c == g_utf8_get_char (";")))) {
 618                         if ((next_c != 0) && (next_c != g_utf8_get_char ("\n"))) {
 619                                 gchar *last_separator = MAX (g_utf8_strrchr(str->str, -1, g_utf8_get_char (",")),
 620                                                              g_utf8_strrchr(str->str, -1, g_utf8_get_char (";")));
 621                                 if (last_separator) {
 622                                         gchar *last_at = g_utf8_strrchr (str->str, -1, g_utf8_get_char ("@"));
 623                                         if (last_at) {
 624                                                 if (last_at < last_separator)
 625                                                         str = g_string_append_c (str, '\n');
 626                                         }
 627                                 } else {
 628                                         if (g_utf8_strrchr (str->str, -1, g_utf8_get_char ("@")))
 629                                                 str = g_string_append_c (str, '\n');
 630                                 }
 631                         }
 632                 }
 633                 if (c == g_utf8_get_char ("\""))
 634                         quoted = !quoted;
 635                 current = g_utf8_next_char (current);
 636                 i = current - text;
 637         }
 638
 639         return g_string_free (str, FALSE);
 640 }
 641
 642 /* Called after the default handler, and thus after the text was
 643    inserted. We use this to insert a break after a ',' or a ';'*/
 644 static void
 645 modest_recpt_editor_on_insert_text_after (GtkTextBuffer *buffer,
 646                                           GtkTextIter *location,
 647                                           gchar *text,
 648                                           gint len,
 649                                           ModestRecptEditor *editor)
 650 {
 651         GtkTextIter prev;
 652         gunichar prev_char;
 653         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 654
 655         prev = *location;
 656         /* We must go backwards twice as location points to the next
 657            valid position to insert text */
 658         if (!gtk_text_iter_backward_chars (&prev, 2))
 659                 return;
 660
 661         prev_char = gtk_text_iter_get_char (&prev);
 662         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 663         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text_after, editor);
 664         if ((prev_char == ';'||prev_char == ',')&&(!quote_opened(&prev))) {
 665                 GtkTextMark *insert;
 666                 gtk_text_iter_forward_char (&prev);
 667                 gtk_text_buffer_insert (buffer, &prev, "\n",-1);
 668                 insert = gtk_text_buffer_get_insert (buffer);
 669                 gtk_text_view_scroll_to_iter (GTK_TEXT_VIEW (priv->text_view), &prev, 0.0,TRUE, 0.0, 1.0);
 670         }
 671         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 672         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text_after, editor);
 673 }
 674
 675 /* Called before the default handler, we use it to validate the inputs */
 676 static void
 677 modest_recpt_editor_on_insert_text (GtkTextBuffer *buffer,
 678                                     GtkTextIter *location,
 679                                     gchar *text,
 680                                     gint len,
 681                                     ModestRecptEditor *editor)
 682 {
 683         if (len > 1024)
 684                 len = 1024;
 685
 686         if (!is_valid_insert (text, len)) {
 687                 gchar *new_text = create_valid_text (text, len);
 688                 g_signal_stop_emission_by_name (G_OBJECT (buffer), "insert-text");
 689                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 690                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text_after, editor);
 691                 gtk_text_buffer_insert (buffer, location, new_text, -1);
 692                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 693                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text_after, editor);
 694                 g_free (new_text);
 695                 return;
 696         }
 697
 698         if (iter_has_recipient (location)) {
 699                 gtk_text_buffer_get_end_iter (buffer, location);
 700                 gtk_text_buffer_place_cursor (buffer, location);
 701         }
 702 }
 703
 704 static GtkTextTag *
 705 iter_has_recipient (GtkTextIter *iter)
 706 {
 707         GSList *tags, *node;
 708         GtkTextTag *result = NULL;
 709
 710         tags = gtk_text_iter_get_tags (iter);
 711
 712         for (node = tags; node != NULL; node = g_slist_next (node)) {
 713                 GtkTextTag *tag = GTK_TEXT_TAG (node->data);
 714
 715                 if (g_object_get_data (G_OBJECT (tag), "recipient-tag-id")) {
 716                         result = tag;
 717                         break;
 718                 }
 719         }
 720         g_slist_free (tags);
 721         return result;
 722 }
 723
 724 static GtkTextTag *
 725 prev_iter_has_recipient (GtkTextIter *iter)
 726 {
 727         GtkTextIter prev;
 728
 729         prev = *iter;
 730         gtk_text_iter_backward_char (&prev);
 731         return iter_has_recipient (&prev);
 732 }
 733
 734 /* static GtkTextTag * */
 735 /* next_iter_has_recipient (GtkTextIter *iter) */
 736 /* { */
 737 /*      GtkTextIter next; */
 738
 739 /*      next = *iter; */
 740 /*      return iter_has_recipient (&next); */
 741 /* } */
 742
 743 static gunichar
 744 iter_previous_char (GtkTextIter *iter)
 745 {
 746         GtkTextIter prev;
 747
 748         prev = *iter;
 749         gtk_text_iter_backward_char (&prev);
 750         return gtk_text_iter_get_char (&prev);
 751 }
 752
 753 /* static gunichar  */
 754 /* iter_next_char (GtkTextIter *iter) */
 755 /* { */
 756 /*      GtkTextIter next; */
 757
 758 /*      next = *iter; */
 759 /*      gtk_text_iter_forward_char (&next); */
 760 /*      return gtk_text_iter_get_char (&next); */
 761 /* } */
 762
 763 static void
 764 select_tag_of_iter (GtkTextIter *iter, GtkTextTag *tag, gboolean grow, gboolean left_not_right)
 765 {
 766         GtkTextIter start, end;
 767
 768         start = *iter;
 769         if (!gtk_text_iter_begins_tag (&start, tag)) {
 770                 gtk_text_iter_backward_to_tag_toggle (&start, tag);
 771         } else {
 772                 if (!left_not_right) {
 773                         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &start, &start);
 774                         return;
 775                 }
 776         }
 777         end = *iter;
 778         if (!gtk_text_iter_ends_tag (&end, tag)) {
 779                 gtk_text_iter_forward_to_tag_toggle (&end, tag);
 780         } else {
 781                 if (left_not_right) {
 782                         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &end, &end);
 783                         return;
 784                 }
 785         }
 786         if (grow) {
 787                 if (left_not_right)
 788                         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &start, &end);
 789                 else
 790                         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &end, &start);
 791         } else {
 792                 if (left_not_right)
 793                         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &start, &start);
 794                 else
 795                         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &end, &end);
 796         }
 797         *iter = left_not_right?start:end;
 798 }
 799
 800 static gboolean
 801 quote_opened (GtkTextIter *iter)
 802 {
 803         GtkTextIter start;
 804         GtkTextBuffer *buffer;
 805         gboolean opened = FALSE;
 806
 807         buffer = gtk_text_iter_get_buffer (iter);
 808         gtk_text_buffer_get_start_iter (buffer, &start);
 809
 810         while (!gtk_text_iter_equal (&start, iter)) {
 811                 gunichar current_char = gtk_text_iter_get_char (&start);
 812                 if (current_char == '"')
 813                         opened = !opened;
 814                 else if (current_char == '\\')
 815                         gtk_text_iter_forward_char (&start);
 816                 if (!gtk_text_iter_equal (&start, iter))
 817                         gtk_text_iter_forward_char (&start);
 818
 819         }
 820         return opened;
 821
 822 }
 823
 824
 825 static gboolean
 826 modest_recpt_editor_on_key_press_event (GtkTextView *text_view,
 827                                           GdkEventKey *key,
 828                                           ModestRecptEditor *editor)
 829 {
 830         GtkTextMark *insert;
 831         GtkTextMark *selection;
 832         GtkTextBuffer * buffer;
 833         GtkTextIter location, selection_loc;
 834         GtkTextTag *tag;
 835         gboolean shift_pressed;
 836         gboolean select_to_left;
 837         gboolean has_selection;
 838
 839         buffer = modest_text_view_get_buffer (GTK_WIDGET (text_view));
 840         insert = gtk_text_buffer_get_insert (buffer);
 841         selection = gtk_text_buffer_get_selection_bound (buffer);
 842
 843         /* cases to cover:
 844          *    * cursor is on resolved recipient:
 845          *        - right should go to first character after the recipient (usually ; or ,)
 846          *        - left should fo to the first character before the recipient
 847          *        - return should run check names on the recipient.
 848          *    * cursor is just after a recipient:
 849          *        - right should go to the next character. If it's a recipient, should select
 850          *          it
 851          *        - left should go to the previous character. If it's a recipient, should go
 852          *          to the first character of the recipient, and select it.
 853          *    * cursor is on arbitrary text:
 854          *        - return should add a ; and go to the next line
 855          *        - left or right standard ones.
 856          *    * cursor is after a \n:
 857          *        - left should go to the character before the \n (as if \n was not a character)
 858          *    * cursor is before a \n:
 859          *        - right should go to the character after the \n
 860          */
 861
 862         gtk_text_buffer_get_iter_at_mark (buffer, &location, insert);
 863         gtk_text_buffer_get_iter_at_mark (buffer, &selection_loc, selection);
 864
 865         select_to_left = gtk_text_iter_get_offset (&selection_loc) > gtk_text_iter_get_offset (&location);
 866         has_selection = gtk_text_iter_get_offset (&selection_loc) != gtk_text_iter_get_offset (&location);
 867         shift_pressed = key->state & GDK_SHIFT_MASK;
 868
 869         switch (key->keyval) {
 870         case GDK_Left:
 871         case GDK_KP_Left:
 872         {
 873                 gboolean cursor_ready = FALSE;
 874                 GtkTextIter prev_location;
 875                 gboolean moved = TRUE;
 876
 877                 prev_location = location;
 878                 while (!cursor_ready) {
 879                         if (moved && (iter_previous_char (&location) == '\n')) {
 880                                 moved = gtk_text_iter_backward_char (&location);
 881                         } else {
 882                                 cursor_ready = TRUE;
 883                         }
 884                 }
 885                 tag = iter_has_recipient (&location);
 886                 if (has_selection && gtk_text_iter_ends_tag (&prev_location, tag)) {
 887                         gtk_text_iter_backward_to_tag_toggle (&prev_location, tag);
 888                         location = prev_location;
 889                         cursor_ready = FALSE;
 890                         moved = TRUE;
 891                         while (moved && !cursor_ready) {
 892                                 if (iter_previous_char (&location) == '\n') {
 893                                         moved = gtk_text_iter_backward_char (&location);
 894                                 } else {
 895                                         cursor_ready = TRUE;
 896                                 }
 897                         }
 898                 }
 899
 900                 if ((tag != NULL)&& (gtk_text_iter_is_start (&location) || !(gtk_text_iter_begins_tag (&location, tag)))) {
 901                         if (has_selection) {
 902                                 gtk_text_buffer_select_range (buffer, &location, &location);
 903                         } else {
 904                                 select_tag_of_iter (&location, tag, select_to_left, TRUE);
 905                         }
 906                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 907
 908                         if (shift_pressed) {
 909                                 gtk_text_buffer_select_range (buffer, &location, &selection_loc);
 910                         }
 911                         return TRUE;
 912                 }
 913                 gtk_text_iter_backward_char (&location);
 914                 tag = iter_has_recipient (&location);
 915                 if (tag != NULL)
 916                         select_tag_of_iter (&location, tag, select_to_left, TRUE);
 917                 else {
 918                         gtk_text_buffer_place_cursor (buffer, &location);
 919                 }
 920                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 921
 922                 if (shift_pressed) {
 923                         gtk_text_buffer_select_range (buffer, &location, &selection_loc);
 924                 }
 925
 926                 return TRUE;
 927         }
 928         break;
 929         case GDK_Right:
 930         case GDK_KP_Right:
 931         {
 932                 gboolean cursor_moved = FALSE;
 933                 gboolean moved = TRUE;
 934
 935                 tag = iter_has_recipient (&location);
 936                 if ((tag != NULL)&&(!gtk_text_iter_ends_tag (&location, tag))) {
 937                         gtk_text_iter_forward_to_tag_toggle (&location, tag);
 938                         moved = TRUE;
 939                         while (moved && (gtk_text_iter_get_char (&location) == '\n'))
 940                                 moved = gtk_text_iter_forward_char (&location);
 941                         gtk_text_buffer_place_cursor (buffer, &location);
 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
 950                 moved = TRUE;
 951                 while (moved && (gtk_text_iter_get_char (&location) == '\n')) {
 952                         moved = gtk_text_iter_forward_char (&location);
 953                         cursor_moved = TRUE;
 954                 }
 955                 if (!cursor_moved)
 956                         gtk_text_iter_forward_char (&location);
 957
 958                 moved = TRUE;
 959                 while (moved && (gtk_text_iter_get_char (&location) == '\n')) {
 960                         moved = gtk_text_iter_forward_char (&location);
 961                         cursor_moved = TRUE;
 962                 }
 963
 964                 tag = iter_has_recipient (&location);
 965                 if (tag != NULL)
 966                         select_tag_of_iter (&location, tag, !select_to_left, FALSE);
 967                 else
 968                         gtk_text_buffer_place_cursor (buffer, &location);
 969                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 970
 971                 if (shift_pressed) {
 972                         gtk_text_buffer_select_range (buffer, &location, &selection_loc);
 973                 }
 974                 return TRUE;
 975         }
 976         break;
 977         case GDK_Return:
 978         case GDK_KP_Enter:
 979         {
 980                 gint insert_offset, selection_offset;
 981                 insert_offset = gtk_text_iter_get_offset (&location);
 982                 selection_offset = gtk_text_iter_get_offset (&selection_loc);
 983                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 984                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text_after, editor);
 985                 if (selection_offset > insert_offset)
 986                         location = selection_loc;
 987                 tag = iter_has_recipient (&location);
 988                 if (tag != NULL) {
 989                         gtk_text_buffer_get_end_iter (buffer, &location);
 990                         gtk_text_buffer_place_cursor (buffer, &location);
 991                         if ((iter_previous_char (&location) != ';')&&(iter_previous_char (&location) != ','))
 992                                 gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
 993                         gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
 994                 } else {
 995                         gunichar prev_char = iter_previous_char (&location);
 996                         if ((gtk_text_iter_is_start (&location))||(prev_char == '\n')
 997                             ||(prev_char == ';')||(prev_char == ','))
 998                                 g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
 999                         else {
1000                                 if ((prev_char != ';') && (prev_char != ','))
1001                                         gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
1002                                 gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
1003                         }
1004                 }
1005                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
1006                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text_after, editor);
1007                 return TRUE;
1008         }
1009         break;
1010         case GDK_BackSpace:
1011         {
1012                 #if GTK_CHECK_VERSION(2, 10, 0) /* gtk_text_buffer_get_has_selection is only available in GTK+ 2.10 */
1013                 if (gtk_text_buffer_get_has_selection (buffer)) {
1014                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
1015                         return TRUE;
1016                 }
1017                 #else
1018                 if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
1019                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
1020                         return TRUE;
1021                 }
1022                 #endif
1023
1024                 tag = prev_iter_has_recipient (&location);
1025                 if (tag != NULL) {
1026                         GtkTextIter iter_in_tag;
1027                         iter_in_tag = location;
1028                         gtk_text_iter_backward_char (&iter_in_tag);
1029                         select_tag_of_iter (&iter_in_tag, tag, FALSE, TRUE);
1030                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
1031                         return TRUE;
1032                 }
1033                 return FALSE;
1034         }
1035         break;
1036         default:
1037                 return FALSE;
1038         }
1039 }
1040
1041 static void _discard_chars (GtkTextIter *start, GtkTextIter *end)
1042 {
1043         while (!gtk_text_iter_equal (start, end)) {
1044                 gunichar c = gtk_text_iter_get_char (start);
1045
1046                 if (c == '\n' || c == ';' || c == ',' || c == ' ') {
1047                         if (!gtk_text_iter_forward_char (start))
1048                                 break;
1049                 } else {
1050                         break;
1051                 }
1052
1053         }
1054 }
1055
1056 /* NOTE: before calling this function be sure that both
1057    modest_recpt_editor_on_insert_text and
1058    modest_recpt_editor_on_insert_text_after won't be triggered during
1059    the execution of the procedure. You'll have to block both signal
1060    handlers otherwise you'll get an infinite loop and most likely a
1061    SIGSEV caused by a stack overflow */
1062 static void
1063 modest_recpt_editor_add_tags (ModestRecptEditor *editor,
1064                               const gchar * recipient_id)
1065 {
1066
1067         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
1068         GtkTextBuffer *buffer = modest_text_view_get_buffer (priv->text_view);
1069         GtkTextTag *tag;
1070         GtkTextIter start, end;
1071         gchar * buffer_contents;
1072         GtkTextIter start_match, end_match;
1073
1074         /* This would move the cursor to the end of the buffer
1075            containing new line character. */
1076         gtk_text_buffer_get_bounds (buffer, &start, &end);
1077         buffer_contents = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
1078         gtk_text_buffer_set_text(buffer,buffer_contents,strlen(buffer_contents));
1079
1080         tag = gtk_text_buffer_create_tag (buffer, NULL,
1081                                           "underline", PANGO_UNDERLINE_SINGLE,
1082                                           "wrap-mode", GTK_WRAP_NONE,
1083                                           "editable", TRUE, NULL);
1084
1085         g_object_set_data (G_OBJECT (tag), "recipient-tag-id", GINT_TO_POINTER (RECIPIENT_TAG_ID));
1086         g_object_set_data_full (G_OBJECT (tag), "recipient-id", g_strdup (recipient_id), (GDestroyNotify) g_free);
1087
1088         /* Formatting the buffer content by applying tag */
1089         gtk_text_buffer_get_bounds (buffer, &start, &end);
1090         _discard_chars (&start, &end);
1091         while (gtk_text_iter_forward_search(&start, ";",
1092                                             GTK_TEXT_SEARCH_TEXT_ONLY |
1093                                             GTK_TEXT_SEARCH_VISIBLE_ONLY,
1094                                             &start_match, &end_match, &end )) {
1095                 int offset;
1096
1097                 gtk_text_buffer_apply_tag(buffer, tag, &start, &start_match);
1098                 offset = gtk_text_iter_get_offset (&end_match);
1099                 gtk_text_buffer_get_iter_at_offset(buffer, &start, offset);
1100                 _discard_chars (&start, &end);
1101         }
1102         g_free (buffer_contents);
1103 }
1104
1105 void
1106 modest_recpt_editor_grab_focus (ModestRecptEditor *recpt_editor)
1107 {
1108         ModestRecptEditorPrivate *priv;
1109
1110         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
1111         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
1112
1113         if (GTK_WIDGET_VISIBLE (recpt_editor)) {
1114                 gtk_widget_grab_focus (priv->text_view);
1115         }
1116 }
1117
1118 gboolean
1119 modest_recpt_editor_has_focus (ModestRecptEditor *recpt_editor)
1120 {
1121         ModestRecptEditorPrivate *priv;
1122
1123         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), FALSE);
1124         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
1125
1126         return GTK_WIDGET_VISIBLE (priv->text_view) &&
1127                 gtk_widget_is_focus (priv->text_view);
1128 }
1129
1130 void
1131 modest_recpt_editor_set_show_abook_button (ModestRecptEditor *recpt_editor, gboolean show)
1132 {
1133         ModestRecptEditorPrivate *priv;
1134
1135         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
1136         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
1137
1138         priv->show_abook = show;
1139
1140         if (show)
1141                 gtk_widget_show (priv->abook_button);
1142         else
1143                 gtk_widget_hide (priv->abook_button);
1144 }
1145
1146 gboolean
1147 modest_recpt_editor_get_show_abook_button (ModestRecptEditor *recpt_editor, gboolean show)
1148 {
1149         ModestRecptEditorPrivate *priv;
1150
1151         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), FALSE);
1152         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
1153
1154         return priv->show_abook;
1155
1156 }
1157
1158 static void
1159 modest_recpt_editor_finalize (GObject *object)
1160 {
1161         ModestRecptEditorPrivate *priv;
1162         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (object);
1163
1164         if (g_signal_handler_is_connected (object, priv->on_mark_set_handler))
1165                 g_signal_handler_disconnect (object, priv->on_mark_set_handler);
1166         priv->on_mark_set_handler = 0;
1167
1168         if (priv->recipients) {
1169                 g_free (priv->recipients);
1170                 priv->recipients = NULL;
1171         }
1172
1173         (*parent_class->finalize) (object);
1174
1175         return;
1176 }
1177
1178 static void
1179 modest_recpt_editor_class_init (ModestRecptEditorClass *klass)
1180 {
1181         GObjectClass *object_class;
1182
1183         parent_class = g_type_class_peek_parent (klass);
1184         object_class = (GObjectClass*) klass;
1185
1186         object_class->finalize = modest_recpt_editor_finalize;
1187
1188         g_type_class_add_private (object_class, sizeof (ModestRecptEditorPrivate));
1189
1190         signals[OPEN_ADDRESSBOOK_SIGNAL] =
1191                 g_signal_new ("open-addressbook",
1192                               G_TYPE_FROM_CLASS (object_class),
1193                               G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
1194                               G_STRUCT_OFFSET (ModestRecptEditorClass, open_addressbook),
1195                               NULL, NULL,
1196                               g_cclosure_marshal_VOID__VOID,
1197                               G_TYPE_NONE, 0);
1198
1199         return;
1200 }
1201
1202 GType
1203 modest_recpt_editor_get_type (void)
1204 {
1205         static GType type = 0;
1206
1207         if (G_UNLIKELY(type == 0))
1208         {
1209                 static const GTypeInfo info =
1210                 {
1211                   sizeof (ModestRecptEditorClass),
1212                   NULL,   /* base_init */
1213                   NULL,   /* base_finalize */
1214                   (GClassInitFunc) modest_recpt_editor_class_init,   /* class_init */
1215                   NULL,   /* class_finalize */
1216                   NULL,   /* class_data */
1217                   sizeof (ModestRecptEditor),
1218                   0,      /* n_preallocs */
1219                   modest_recpt_editor_instance_init    /* instance_init */
1220                 };
1221
1222                 type = g_type_register_static (GTK_TYPE_HBOX,
1223                         "ModestRecptEditor",
1224                         &info, 0);
1225
1226         }
1227
1228         return type;
1229 }