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