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

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