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_addressbook", 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->recipients = NULL;
 332
 333         priv->scrolled_window = modest_scroll_text_new (GTK_TEXT_VIEW (priv->text_view), 5);
 334         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_POLICY_NEVER,
 335                                         GTK_POLICY_AUTOMATIC);
 336         gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_SHADOW_IN);
 337 /*      gtk_container_add (GTK_CONTAINER (priv->scrolled_window), priv->text_view); */
 338
 339         gtk_box_pack_start (GTK_BOX (instance), priv->scrolled_window, TRUE, TRUE, 0);
 340 /*      gtk_box_pack_start (GTK_BOX (instance), priv->text_view, TRUE, TRUE, 0); */
 341         gtk_box_pack_end (GTK_BOX (instance), priv->abook_button, FALSE, FALSE, 0);
 342
 343         gtk_text_view_set_accepts_tab (GTK_TEXT_VIEW (priv->text_view), FALSE);
 344         gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (priv->text_view), TRUE);
 345         gtk_text_view_set_editable (GTK_TEXT_VIEW (priv->text_view), TRUE);
 346
 347         gtk_text_view_set_justification (GTK_TEXT_VIEW (priv->text_view), GTK_JUSTIFY_LEFT);
 348         gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (priv->text_view), GTK_WRAP_CHAR);
 349
 350         gtk_widget_set_size_request (priv->text_view, 75, -1);
 351
 352         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 353         g_signal_connect (G_OBJECT (priv->abook_button), "clicked", G_CALLBACK (modest_recpt_editor_on_abook_clicked), instance);
 354         g_signal_connect (G_OBJECT (priv->text_view), "button-release-event", G_CALLBACK (modest_recpt_editor_on_button_release_event), instance);
 355         g_signal_connect (G_OBJECT (priv->text_view), "key-press-event", G_CALLBACK (modest_recpt_editor_on_key_press_event), instance);
 356         g_signal_connect (G_OBJECT (priv->text_view), "focus-in-event", G_CALLBACK (modest_recpt_editor_on_focus_in), instance);
 357         g_signal_connect (G_OBJECT (buffer), "insert-text", G_CALLBACK (modest_recpt_editor_on_insert_text), instance);
 358
 359 /*      gtk_container_set_focus_child (GTK_CONTAINER (instance), priv->text_view); */
 360
 361         return;
 362 }
 363
 364 void
 365 modest_recpt_editor_set_field_size_group (ModestRecptEditor *recpt_editor, GtkSizeGroup *size_group)
 366 {
 367         ModestRecptEditorPrivate *priv;
 368
 369         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 370         g_return_if_fail (GTK_IS_SIZE_GROUP (size_group));
 371         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 372
 373         gtk_size_group_add_widget (size_group, priv->scrolled_window);
 374 }
 375
 376 GtkTextBuffer *
 377 modest_recpt_editor_get_buffer (ModestRecptEditor *recpt_editor)
 378 {
 379         ModestRecptEditorPrivate *priv;
 380
 381         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), NULL);
 382         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 383
 384         return gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 385 }
 386
 387 static void
 388 modest_recpt_editor_on_abook_clicked (GtkButton *button, ModestRecptEditor *editor)
 389 {
 390         g_return_if_fail (MODEST_IS_RECPT_EDITOR (editor));
 391
 392         g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
 393 }
 394
 395 static gboolean
 396 modest_recpt_editor_on_button_release_event (GtkWidget *widget,
 397                                              GdkEventButton *event,
 398                                              ModestRecptEditor *recpt_editor)
 399 {
 400         ModestRecptEditorPrivate *priv;
 401         GtkTextIter location, start, end;
 402         GtkTextMark *mark;
 403         GtkTextBuffer *buffer;
 404         GtkTextTag *tag;
 405         gboolean selection_changed = FALSE;
 406
 407         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 408
 409         buffer = modest_recpt_editor_get_buffer (recpt_editor);
 410         mark = gtk_text_buffer_get_insert (buffer);
 411         gtk_text_buffer_get_iter_at_mark (buffer, &location, mark);
 412
 413         gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
 414
 415         tag = iter_has_recipient (&start);
 416         if (tag != NULL)
 417                 if (!gtk_text_iter_begins_tag (&start, tag)) {
 418                         gtk_text_iter_backward_to_tag_toggle (&start, tag);
 419                         selection_changed = TRUE;
 420                 }
 421
 422         tag = iter_has_recipient (&end);
 423         if (tag != NULL)
 424                 if (!gtk_text_iter_ends_tag (&end, tag)) {
 425                         gtk_text_iter_forward_to_tag_toggle (&end, tag);
 426                         selection_changed = TRUE;
 427                 }
 428
 429         gtk_text_buffer_select_range (buffer, &start, &end);
 430
 431         return FALSE;
 432 }
 433
 434 static void
 435 modest_recpt_editor_on_focus_in (GtkTextView *text_view,
 436                                  GdkEventFocus *event,
 437                                  ModestRecptEditor *editor)
 438 {
 439         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 440         gtk_text_view_place_cursor_onscreen (GTK_TEXT_VIEW (priv->text_view));
 441 }
 442
 443 static gboolean
 444 is_valid_insert (const gchar *text, gint len)
 445 {
 446         gunichar c;
 447         gint i= 0;
 448         const gchar *current;
 449         if (text == NULL)
 450                 return TRUE;
 451         current = text;
 452
 453         while (((len == -1)||(i < len)) && (*text != '\0')) {
 454                 c = g_utf8_get_char (current);
 455                 if (c == 0x2022 || c == 0xfffc)
 456                         return FALSE;
 457                 current = g_utf8_next_char (current);
 458                 i = current - text;
 459         }
 460         return TRUE;
 461 }
 462
 463 static gchar *
 464 create_valid_text (const gchar *text, gint len)
 465 {
 466         gunichar c;
 467         gint i= 0;
 468         GString *str;
 469         const gchar *current;
 470
 471         if (text == NULL)
 472                 return NULL;
 473
 474         str = g_string_new ("");
 475         current = text;
 476
 477         while (((len == -1)||(i < len)) && (*text != '\0')) {
 478                 c = g_utf8_get_char (current);
 479                 if (c != 0x2022 && c != 0xfffc)
 480                         str = g_string_append_unichar (str, c);
 481                 current = g_utf8_next_char (current);
 482                 i = current - text;
 483         }
 484         return g_string_free (str, FALSE);
 485 }
 486
 487 static void
 488 modest_recpt_editor_on_insert_text (GtkTextBuffer *buffer,
 489                                     GtkTextIter *location,
 490                                     gchar *text,
 491                                     gint len,
 492                                     ModestRecptEditor *editor)
 493 {
 494         GtkTextIter prev;
 495         gunichar prev_char;
 496         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 497
 498         if (!is_valid_insert (text, len)) {
 499                 gchar *new_text = create_valid_text (text, len);
 500                 g_signal_stop_emission_by_name (G_OBJECT (buffer), "insert-text");
 501                 gtk_text_buffer_insert (buffer, location, new_text, -1);
 502                 g_free (new_text);
 503         }
 504
 505         if (iter_has_recipient (location)) {
 506                 gtk_text_buffer_get_end_iter (buffer, location);
 507                 gtk_text_buffer_place_cursor (buffer, location);
 508         }
 509
 510         if (gtk_text_iter_is_start (location))
 511                 return;
 512
 513         if (gtk_text_iter_is_end (location)) {
 514                 prev = *location;
 515                 if (!gtk_text_iter_backward_char (&prev))
 516                         return;
 517                 prev_char = gtk_text_iter_get_char (&prev);
 518                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 519                 if ((prev_char == ';'||prev_char == ',')&&(!quote_opened(location))) {
 520                         GtkTextMark *insert;
 521                         gtk_text_buffer_insert (buffer, location, "\n",-1);
 522                         insert = gtk_text_buffer_get_insert (buffer);
 523                         gtk_text_view_scroll_to_iter (GTK_TEXT_VIEW (priv->text_view), location, 0.0,TRUE, 0.0, 1.0);
 524                 }
 525                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 526
 527         }
 528
 529 }
 530
 531 static GtkTextTag *
 532 iter_has_recipient (GtkTextIter *iter)
 533 {
 534         GSList *tags, *node;
 535         GtkTextTag *result = NULL;
 536
 537         tags = gtk_text_iter_get_tags (iter);
 538
 539         for (node = tags; node != NULL; node = g_slist_next (node)) {
 540                 GtkTextTag *tag = GTK_TEXT_TAG (node->data);
 541
 542                 if (g_object_get_data (G_OBJECT (tag), "recipient-tag-id")) {
 543                         result = tag;
 544                         break;
 545                 }
 546         }
 547         g_slist_free (tags);
 548         return result;
 549 }
 550
 551 static GtkTextTag *
 552 prev_iter_has_recipient (GtkTextIter *iter)
 553 {
 554         GtkTextIter prev;
 555
 556         prev = *iter;
 557         gtk_text_iter_backward_char (&prev);
 558         return iter_has_recipient (&prev);
 559 }
 560
 561 /* static GtkTextTag * */
 562 /* next_iter_has_recipient (GtkTextIter *iter) */
 563 /* { */
 564 /*      GtkTextIter next; */
 565
 566 /*      next = *iter; */
 567 /*      return iter_has_recipient (&next); */
 568 /* } */
 569
 570 static gunichar
 571 iter_previous_char (GtkTextIter *iter)
 572 {
 573         GtkTextIter prev;
 574
 575         prev = *iter;
 576         gtk_text_iter_backward_char (&prev);
 577         return gtk_text_iter_get_char (&prev);
 578 }
 579
 580 /* static gunichar  */
 581 /* iter_next_char (GtkTextIter *iter) */
 582 /* { */
 583 /*      GtkTextIter next; */
 584
 585 /*      next = *iter; */
 586 /*      gtk_text_iter_forward_char (&next); */
 587 /*      return gtk_text_iter_get_char (&next); */
 588 /* } */
 589
 590 static void
 591 select_tag_of_iter (GtkTextIter *iter, GtkTextTag *tag)
 592 {
 593         GtkTextIter start, end;
 594
 595         start = *iter;
 596         if (!gtk_text_iter_begins_tag (&start, tag))
 597                 gtk_text_iter_backward_to_tag_toggle (&start, tag);
 598         end = *iter;
 599         if (!gtk_text_iter_ends_tag (&end, tag))
 600                 gtk_text_iter_forward_to_tag_toggle (&end, tag);
 601         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &start, &end);
 602 }
 603
 604 static gboolean
 605 quote_opened (GtkTextIter *iter)
 606 {
 607         GtkTextIter start;
 608         GtkTextBuffer *buffer;
 609         gboolean opened = FALSE;
 610
 611         buffer = gtk_text_iter_get_buffer (iter);
 612         gtk_text_buffer_get_start_iter (buffer, &start);
 613
 614         while (!gtk_text_iter_equal (&start, iter)) {
 615                 gunichar current_char = gtk_text_iter_get_char (&start);
 616                 if (current_char == '"')
 617                         opened = !opened;
 618                 else if (current_char == '\\')
 619                         gtk_text_iter_forward_char (&start);
 620                 if (!gtk_text_iter_equal (&start, iter))
 621                         gtk_text_iter_forward_char (&start);
 622
 623         }
 624         return opened;
 625
 626 }
 627
 628
 629 static gboolean
 630 modest_recpt_editor_on_key_press_event (GtkTextView *text_view,
 631                                           GdkEventKey *key,
 632                                           ModestRecptEditor *editor)
 633 {
 634         GtkTextMark *insert;
 635         GtkTextBuffer * buffer;
 636         GtkTextIter location;
 637         GtkTextTag *tag;
 638
 639         buffer = gtk_text_view_get_buffer (text_view);
 640         insert = gtk_text_buffer_get_insert (buffer);
 641
 642         /* cases to cover:
 643          *    * cursor is on resolved recipient:
 644          *        - right should go to first character after the recipient (usually ; or ,)
 645          *        - left should fo to the first character before the recipient
 646          *        - return should run check names on the recipient.
 647          *    * cursor is just after a recipient:
 648          *        - right should go to the next character. If it's a recipient, should select
 649          *          it
 650          *        - left should go to the previous character. If it's a recipient, should go
 651          *          to the first character of the recipient, and select it.
 652          *    * cursor is on arbitrary text:
 653          *        - return should add a ; and go to the next line
 654          *        - left or right standard ones.
 655          *    * cursor is after a \n:
 656          *        - left should go to the character before the \n (as if \n was not a character)
 657          *    * cursor is before a \n:
 658          *        - right should go to the character after the \n
 659          */
 660
 661         gtk_text_buffer_get_iter_at_mark (buffer, &location, insert);
 662
 663         switch (key->keyval) {
 664         case GDK_Left:
 665         case GDK_KP_Left:
 666         {
 667                 gboolean cursor_ready = FALSE;
 668                 while (!cursor_ready) {
 669                         if (iter_previous_char (&location) == '\n') {
 670                                 gtk_text_iter_backward_char (&location);
 671                         } else {
 672                                 cursor_ready = TRUE;
 673                         }
 674                 }
 675                 tag = iter_has_recipient (&location);
 676                 if ((tag != NULL)&& (gtk_text_iter_is_start (&location) || !(gtk_text_iter_begins_tag (&location, tag)))) {
 677                         select_tag_of_iter (&location, tag);
 678                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 679                         return TRUE;
 680                 }
 681                 gtk_text_iter_backward_char (&location);
 682                 tag = iter_has_recipient (&location);
 683                 if (tag != NULL)
 684                         select_tag_of_iter (&location, tag);
 685                 else {
 686                         gtk_text_buffer_place_cursor (buffer, &location);
 687                 }
 688                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 689
 690                 return TRUE;
 691         }
 692         break;
 693         case GDK_Right:
 694         case GDK_KP_Right:
 695         {
 696                 gboolean cursor_moved = FALSE;
 697
 698                 tag = iter_has_recipient (&location);
 699                 if ((tag != NULL)&&(!gtk_text_iter_ends_tag (&location, tag))) {
 700                         gtk_text_iter_forward_to_tag_toggle (&location, tag);
 701                         while (gtk_text_iter_get_char (&location) == '\n')
 702                                 gtk_text_iter_forward_char (&location);
 703                         gtk_text_buffer_place_cursor (buffer, &location);
 704                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 705                         return TRUE;
 706                 }
 707
 708                 while (gtk_text_iter_get_char (&location) == '\n') {
 709                         gtk_text_iter_forward_char (&location);
 710                         cursor_moved = TRUE;
 711                 }
 712                 if (!cursor_moved)
 713                         gtk_text_iter_forward_char (&location);
 714                 while (gtk_text_iter_get_char (&location) == '\n') {
 715                         gtk_text_iter_forward_char (&location);
 716                         cursor_moved = TRUE;
 717                 }
 718
 719                 tag = iter_has_recipient (&location);
 720                 if (tag != NULL)
 721                         select_tag_of_iter (&location, tag);
 722                 else
 723                         gtk_text_buffer_place_cursor (buffer, &location);
 724                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 725                 return TRUE;
 726         }
 727         break;
 728         case GDK_Return:
 729         case GDK_KP_Enter:
 730         {
 731                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 732                 tag = iter_has_recipient (&location);
 733                 if (tag != NULL) {
 734                         gtk_text_buffer_get_end_iter (buffer, &location);
 735                         gtk_text_buffer_place_cursor (buffer, &location);
 736                         if ((iter_previous_char (&location) != ';')&&(iter_previous_char (&location) != ','))
 737                                 gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
 738                         gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
 739                 } else {
 740                         gunichar prev_char = iter_previous_char (&location);
 741                         if ((gtk_text_iter_is_start (&location))||(prev_char == '\n')
 742                             ||(prev_char == ';')||(prev_char == ','))
 743                                 g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
 744                         else {
 745                                 if ((prev_char != ';') && (prev_char != ','))
 746                                         gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
 747                                 gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
 748                         }
 749                 }
 750                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 751                 return TRUE;
 752         }
 753         break;
 754         case GDK_BackSpace:
 755         {
 756                 #if GTK_CHECK_VERSION(2, 10, 0) /* gtk_text_buffer_get_has_selection is only available in GTK+ 2.10 */
 757                 if (gtk_text_buffer_get_has_selection (buffer)) {
 758                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 759                         return TRUE;
 760                 }
 761                 #else
 762                 if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
 763                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 764                         return TRUE;
 765                 }
 766                 #endif
 767
 768                 tag = prev_iter_has_recipient (&location);
 769                 if (tag != NULL) {
 770                         GtkTextIter iter_in_tag;
 771                         iter_in_tag = location;
 772                         gtk_text_iter_backward_char (&iter_in_tag);
 773                         select_tag_of_iter (&iter_in_tag, tag);
 774                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 775                         return TRUE;
 776                 }
 777                 return FALSE;
 778         }
 779         break;
 780         default:
 781                 return FALSE;
 782         }
 783 }
 784
 785 static void
 786 modest_recpt_editor_move_cursor_to_end (ModestRecptEditor *editor)
 787 {
 788         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 789         GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 790         GtkTextIter start, end;
 791
 792         gtk_text_buffer_get_end_iter (buffer, &start);
 793         end = start;
 794         gtk_text_buffer_select_range (buffer, &start, &end);
 795
 796
 797 }
 798
 799 void
 800 modest_recpt_editor_grab_focus (ModestRecptEditor *recpt_editor)
 801 {
 802         ModestRecptEditorPrivate *priv;
 803
 804         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 805         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 806
 807         gtk_widget_grab_focus (priv->text_view);
 808 }
 809
 810 static void
 811 modest_recpt_editor_finalize (GObject *object)
 812 {
 813         ModestRecptEditorPrivate *priv;
 814         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (object);
 815
 816         if (priv->recipients) {
 817                 g_free (priv->recipients);
 818                 priv->recipients = NULL;
 819         }
 820
 821         (*parent_class->finalize) (object);
 822
 823         return;
 824 }
 825
 826 static void
 827 modest_recpt_editor_class_init (ModestRecptEditorClass *klass)
 828 {
 829         GObjectClass *object_class;
 830         GtkWidgetClass *widget_class;
 831
 832         parent_class = g_type_class_peek_parent (klass);
 833         object_class = (GObjectClass*) klass;
 834         widget_class = GTK_WIDGET_CLASS (klass);
 835
 836         object_class->finalize = modest_recpt_editor_finalize;
 837
 838         g_type_class_add_private (object_class, sizeof (ModestRecptEditorPrivate));
 839
 840         signals[OPEN_ADDRESSBOOK_SIGNAL] =
 841                 g_signal_new ("open-addressbook",
 842                               G_TYPE_FROM_CLASS (object_class),
 843                               G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
 844                               G_STRUCT_OFFSET (ModestRecptEditorClass, open_addressbook),
 845                               NULL, NULL,
 846                               g_cclosure_marshal_VOID__VOID,
 847                               G_TYPE_NONE, 0);
 848
 849         return;
 850 }
 851
 852 GType
 853 modest_recpt_editor_get_type (void)
 854 {
 855         static GType type = 0;
 856
 857         if (G_UNLIKELY(type == 0))
 858         {
 859                 static const GTypeInfo info =
 860                 {
 861                   sizeof (ModestRecptEditorClass),
 862                   NULL,   /* base_init */
 863                   NULL,   /* base_finalize */
 864                   (GClassInitFunc) modest_recpt_editor_class_init,   /* class_init */
 865                   NULL,   /* class_finalize */
 866                   NULL,   /* class_data */
 867                   sizeof (ModestRecptEditor),
 868                   0,      /* n_preallocs */
 869                   modest_recpt_editor_instance_init    /* instance_init */
 870                 };
 871
 872                 type = g_type_register_static (GTK_TYPE_HBOX,
 873                         "ModestRecptEditor",
 874                         &info, 0);
 875
 876         }
 877
 878         return type;
 879 }