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 /* FIXNE: we should have no maemo-deps in widgets/ */
  48 #ifndef MODEST_TOOLKIT_GTK
  49 #include "maemo/modest-hildon-includes.h"
  50 #endif /*!MODEST_TOOLKIT_GTK*/
  51
  52
  53 static GObjectClass *parent_class = NULL;
  54
  55 #define RECIPIENT_TAG_ID "recpt-id"
  56
  57 /* signals */
  58 enum {
  59         OPEN_ADDRESSBOOK_SIGNAL,
  60         LAST_SIGNAL
  61 };
  62
  63 typedef struct _ModestRecptEditorPrivate ModestRecptEditorPrivate;
  64
  65 struct _ModestRecptEditorPrivate
  66 {
  67         GtkWidget *text_view;
  68         GtkWidget *abook_button;
  69         GtkWidget *scrolled_window;
  70         gchar *recipients;
  71
  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 gboolean modest_recpt_editor_on_button_release_event (GtkWidget *widget,
  88                                                              GdkEventButton *event,
  89                                                              ModestRecptEditor *editor);
  90 static void modest_recpt_editor_move_cursor_to_end (ModestRecptEditor *editor);
  91 static void modest_recpt_editor_on_focus_in (GtkTextView *text_view,
  92                                              GdkEventFocus *event,
  93                                              ModestRecptEditor *editor);
  94 static void modest_recpt_editor_on_insert_text (GtkTextBuffer *buffer,
  95                                                 GtkTextIter *location,
  96                                                 gchar *text,
  97                                                 gint len,
  98                                                 ModestRecptEditor *editor);
  99 static gboolean modest_recpt_editor_on_key_press_event (GtkTextView *text_view,
 100                                                           GdkEventKey *key,
 101                                                           ModestRecptEditor *editor);
 102 static GtkTextTag *iter_has_recipient (GtkTextIter *iter);
 103 static gunichar iter_previous_char (GtkTextIter *iter);
 104 /* static gunichar iter_next_char (GtkTextIter *iter); */
 105 static GtkTextTag *prev_iter_has_recipient (GtkTextIter *iter);
 106 /* static GtkTextTag *next_iter_has_recipient (GtkTextIter *iter); */
 107 static void select_tag_of_iter (GtkTextIter *iter, GtkTextTag *tag);
 108 static gboolean quote_opened (GtkTextIter *iter);
 109 static gboolean is_valid_insert (const gchar *text, gint len);
 110 static gchar *create_valid_text (const gchar *text, gint len);
 111
 112 /**
 113  * modest_recpt_editor_new:
 114  *
 115  * Return value: a new #ModestRecptEditor instance implemented for Gtk+
 116  **/
 117 GtkWidget*
 118 modest_recpt_editor_new (void)
 119 {
 120         ModestRecptEditor *self = g_object_new (MODEST_TYPE_RECPT_EDITOR,
 121                                                 "homogeneous", FALSE,
 122                                                 "spacing", 1,
 123                                                 NULL);
 124
 125         return GTK_WIDGET (self);
 126 }
 127
 128 void
 129 modest_recpt_editor_set_recipients (ModestRecptEditor *recpt_editor, const gchar *recipients)
 130 {
 131         ModestRecptEditorPrivate *priv;
 132         GtkTextBuffer *buffer = NULL;
 133         gchar *valid_recipients = NULL;
 134
 135         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 136         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 137
 138         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 139
 140         valid_recipients = create_valid_text (recipients, -1);
 141         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 142         gtk_text_buffer_set_text (buffer, valid_recipients, -1);
 143         g_free (valid_recipients);
 144         if (GTK_WIDGET_REALIZED (recpt_editor))
 145                 gtk_widget_queue_resize (GTK_WIDGET (recpt_editor));
 146         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 147
 148 }
 149
 150 void
 151 modest_recpt_editor_add_recipients (ModestRecptEditor *recpt_editor, const gchar *recipients)
 152 {
 153         ModestRecptEditorPrivate *priv;
 154         GtkTextBuffer *buffer = NULL;
 155         GtkTextIter iter;
 156         gchar *string_to_add;
 157
 158         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 159         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 160
 161         if (recipients == NULL)
 162                 return;
 163
 164         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 165
 166         if (gtk_text_buffer_get_char_count (buffer) > 0) {
 167                 string_to_add = g_strconcat (";\n", recipients, NULL);
 168         } else {
 169                 string_to_add = g_strdup (recipients);
 170         }
 171
 172         gtk_text_buffer_get_end_iter (buffer, &iter);
 173
 174         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 175
 176         gtk_text_buffer_insert (buffer, &iter, string_to_add, -1);
 177
 178         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 179
 180         if (GTK_WIDGET_REALIZED (recpt_editor))
 181                 gtk_widget_queue_resize (GTK_WIDGET (recpt_editor));
 182
 183         g_free (string_to_add);
 184 }
 185
 186 void
 187 modest_recpt_editor_add_resolved_recipient (ModestRecptEditor *recpt_editor, GSList *email_list, const gchar * recipient_id)
 188 {
 189         ModestRecptEditorPrivate *priv;
 190         GtkTextBuffer *buffer = NULL;
 191         GtkTextIter start, end, iter;
 192         GtkTextTag *tag = NULL;
 193         GSList *node;
 194         gboolean is_first_recipient = TRUE;
 195
 196         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 197         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 198
 199         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 200
 201         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 202         gtk_text_buffer_get_bounds (buffer, &start, &end);
 203         if (gtk_text_buffer_get_char_count (buffer) > 0) {
 204                 gchar * buffer_contents;
 205
 206                 gtk_text_buffer_get_bounds (buffer, &start, &end);
 207                 buffer_contents = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 208                 if (!g_str_has_suffix (buffer_contents, "\n")) {
 209                         if (g_str_has_suffix (buffer_contents, ";")||(g_str_has_suffix (buffer_contents, ",")))
 210                                 gtk_text_buffer_insert (buffer, &end, "\n", -1);
 211                         else
 212                                 gtk_text_buffer_insert (buffer, &end, ";\n", -1);
 213                 }
 214                 g_free (buffer_contents);
 215         }
 216
 217         gtk_text_buffer_get_end_iter (buffer, &iter);
 218
 219         tag = gtk_text_buffer_create_tag (buffer, NULL,
 220                                           "underline", PANGO_UNDERLINE_SINGLE,
 221                                           "wrap-mode", GTK_WRAP_NONE,
 222                                           "editable", TRUE, NULL);
 223
 224         g_object_set_data (G_OBJECT (tag), "recipient-tag-id", GINT_TO_POINTER (RECIPIENT_TAG_ID));
 225         g_object_set_data_full (G_OBJECT (tag), "recipient-id", g_strdup (recipient_id), (GDestroyNotify) g_free);
 226
 227         for (node = email_list; node != NULL; node = g_slist_next (node)) {
 228                 gchar *recipient = (gchar *) node->data;
 229
 230                 if ((recipient) && (strlen (recipient) != 0)) {
 231
 232                         if (!is_first_recipient)
 233                         gtk_text_buffer_insert (buffer, &iter, "\n", -1);
 234
 235                         gtk_text_buffer_insert_with_tags (buffer, &iter, recipient, -1, tag, NULL);
 236                         gtk_text_buffer_insert (buffer, &iter, ";", -1);
 237                         is_first_recipient = FALSE;
 238                 }
 239         }
 240         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 241
 242         modest_recpt_editor_move_cursor_to_end (recpt_editor);
 243
 244 }
 245
 246 void
 247 modest_recpt_editor_replace_with_resolved_recipient (ModestRecptEditor *recpt_editor,
 248                                                      GtkTextIter *start, GtkTextIter *end,
 249                                                      GSList *email_list, const gchar * recipient_id)
 250 {
 251         ModestRecptEditorPrivate *priv;
 252         GtkTextBuffer *buffer;
 253         GtkTextTag *tag;
 254         GSList *node;
 255         gboolean is_first_recipient = TRUE;
 256
 257         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 258         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 259
 260         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 261         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 262
 263         gtk_text_buffer_delete (buffer, start, end);
 264
 265         tag = gtk_text_buffer_create_tag (buffer, NULL,
 266                                           "underline", PANGO_UNDERLINE_SINGLE,
 267                                           "wrap-mode", GTK_WRAP_NONE,
 268                                           "editable", TRUE, NULL);
 269
 270         g_object_set_data (G_OBJECT (tag), "recipient-tag-id", GINT_TO_POINTER (RECIPIENT_TAG_ID));
 271         g_object_set_data_full (G_OBJECT (tag), "recipient-id", g_strdup (recipient_id), (GDestroyNotify) g_free);
 272
 273         for (node = email_list; node != NULL; node = g_slist_next (node)) {
 274                 gchar *recipient = (gchar *) node->data;
 275
 276                 if ((recipient) && (strlen (recipient) != 0)) {
 277
 278                         if (!is_first_recipient)
 279                         gtk_text_buffer_insert (buffer, start, "\n", -1);
 280
 281                         gtk_text_buffer_insert_with_tags (buffer, start, recipient, -1, tag, NULL);
 282
 283                         if (node->next != NULL)
 284                                 gtk_text_buffer_insert (buffer, start, ";", -1);
 285                         is_first_recipient = FALSE;
 286                 }
 287         }
 288         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 289
 290 }
 291
 292
 293 const gchar *
 294 modest_recpt_editor_get_recipients (ModestRecptEditor *recpt_editor)
 295 {
 296         ModestRecptEditorPrivate *priv;
 297         GtkTextBuffer *buffer = NULL;
 298         GtkTextIter start, end;
 299         gchar *c;
 300
 301         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), NULL);
 302         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 303
 304         if (priv->recipients != NULL) {
 305                 g_free (priv->recipients);
 306                 priv->recipients = NULL;
 307         }
 308
 309         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 310
 311         gtk_text_buffer_get_start_iter (buffer, &start);
 312         gtk_text_buffer_get_end_iter (buffer, &end);
 313
 314         priv->recipients = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 315         for (c = priv->recipients; *c != '\0'; c = g_utf8_next_char (c)) {
 316                 if (*c == '\n') {
 317                         *c = ' ';
 318                 }
 319         }
 320
 321         return priv->recipients;
 322
 323 }
 324
 325 static void
 326 modest_recpt_editor_instance_init (GTypeInstance *instance, gpointer g_class)
 327 {
 328         ModestRecptEditorPrivate *priv;
 329         GtkWidget *abook_icon;
 330         GtkTextBuffer *buffer;
 331
 332         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (instance);
 333
 334         priv->abook_button = gtk_button_new ();
 335         gtk_button_set_relief (GTK_BUTTON (priv->abook_button), GTK_RELIEF_NONE);
 336         gtk_button_set_focus_on_click (GTK_BUTTON (priv->abook_button), FALSE);
 337         GTK_WIDGET_UNSET_FLAGS (priv->abook_button, GTK_CAN_FOCUS);
 338         gtk_button_set_alignment (GTK_BUTTON (priv->abook_button), 1.0, 1.0);
 339 #ifdef MODEST_TOOLKIT_HILDON2
 340         abook_icon = gtk_image_new_from_icon_name ("tasklaunch_contact", GTK_ICON_SIZE_BUTTON);
 341 #else
 342         abook_icon = gtk_image_new_from_icon_name ("qgn_list_addressbook", GTK_ICON_SIZE_BUTTON);
 343 #endif
 344         gtk_container_add (GTK_CONTAINER (priv->abook_button), abook_icon);
 345
 346         priv->text_view = gtk_text_view_new ();
 347         /* Auto-capitalization is the default, so let's turn it off: */
 348 #ifdef MAEMO_CHANGES
 349         hildon_gtk_text_view_set_input_mode (GTK_TEXT_VIEW (priv->text_view),
 350                 HILDON_GTK_INPUT_MODE_FULL);
 351 #endif
 352
 353         priv->recipients = NULL;
 354
 355 #ifdef MODEST_TOOLKIT_HILDON2
 356         priv->scrolled_window = NULL;
 357         gtk_box_pack_start (GTK_BOX (instance), priv->text_view, TRUE, TRUE, 0);
 358 #else
 359         priv->scrolled_window = modest_scroll_text_new (GTK_TEXT_VIEW (priv->text_view), 1024);
 360         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_POLICY_NEVER,
 361                                         GTK_POLICY_AUTOMATIC);
 362         gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_SHADOW_IN);
 363 /*      gtk_container_add (GTK_CONTAINER (priv->scrolled_window), priv->text_view); */
 364
 365         gtk_box_pack_start (GTK_BOX (instance), priv->scrolled_window, TRUE, TRUE, 0);
 366 /*      gtk_box_pack_start (GTK_BOX (instance), priv->text_view, TRUE, TRUE, 0); */
 367 #endif
 368         gtk_box_pack_end (GTK_BOX (instance), priv->abook_button, FALSE, FALSE, 0);
 369
 370         gtk_text_view_set_accepts_tab (GTK_TEXT_VIEW (priv->text_view), FALSE);
 371         gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (priv->text_view), TRUE);
 372         gtk_text_view_set_editable (GTK_TEXT_VIEW (priv->text_view), TRUE);
 373
 374         gtk_text_view_set_justification (GTK_TEXT_VIEW (priv->text_view), GTK_JUSTIFY_LEFT);
 375         gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (priv->text_view), GTK_WRAP_CHAR);
 376
 377         gtk_widget_set_size_request (priv->text_view, 75, -1);
 378
 379         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 380         g_signal_connect (G_OBJECT (priv->abook_button), "clicked", G_CALLBACK (modest_recpt_editor_on_abook_clicked), instance);
 381         g_signal_connect (G_OBJECT (priv->text_view), "button-release-event", G_CALLBACK (modest_recpt_editor_on_button_release_event), instance);
 382         g_signal_connect (G_OBJECT (priv->text_view), "key-press-event", G_CALLBACK (modest_recpt_editor_on_key_press_event), instance);
 383         g_signal_connect (G_OBJECT (priv->text_view), "focus-in-event", G_CALLBACK (modest_recpt_editor_on_focus_in), instance);
 384         g_signal_connect (G_OBJECT (buffer), "insert-text", G_CALLBACK (modest_recpt_editor_on_insert_text), instance);
 385
 386 /*      gtk_container_set_focus_child (GTK_CONTAINER (instance), priv->text_view); */
 387
 388         return;
 389 }
 390
 391 void
 392 modest_recpt_editor_set_field_size_group (ModestRecptEditor *recpt_editor, GtkSizeGroup *size_group)
 393 {
 394         ModestRecptEditorPrivate *priv;
 395
 396         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 397         g_return_if_fail (GTK_IS_SIZE_GROUP (size_group));
 398         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 399
 400 #ifdef MODEST_TOOLKIT_HILDON2
 401         gtk_size_group_add_widget (size_group, priv->text_view);
 402 #else
 403         gtk_size_group_add_widget (size_group, priv->scrolled_window);
 404 #endif
 405 }
 406
 407 GtkTextBuffer *
 408 modest_recpt_editor_get_buffer (ModestRecptEditor *recpt_editor)
 409 {
 410         ModestRecptEditorPrivate *priv;
 411
 412         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), NULL);
 413         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 414
 415         return gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 416 }
 417
 418 static void
 419 modest_recpt_editor_on_abook_clicked (GtkButton *button, ModestRecptEditor *editor)
 420 {
 421         g_return_if_fail (MODEST_IS_RECPT_EDITOR (editor));
 422
 423         g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
 424 }
 425
 426 static gboolean
 427 modest_recpt_editor_on_button_release_event (GtkWidget *widget,
 428                                              GdkEventButton *event,
 429                                              ModestRecptEditor *recpt_editor)
 430 {
 431         ModestRecptEditorPrivate *priv;
 432         GtkTextIter location, start, end;
 433         GtkTextMark *mark;
 434         GtkTextBuffer *buffer;
 435         GtkTextTag *tag;
 436         gboolean selection_changed = FALSE;
 437
 438         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 439
 440         buffer = modest_recpt_editor_get_buffer (recpt_editor);
 441         mark = gtk_text_buffer_get_insert (buffer);
 442         gtk_text_buffer_get_iter_at_mark (buffer, &location, mark);
 443
 444         gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
 445
 446         tag = iter_has_recipient (&start);
 447         if (tag != NULL)
 448                 if (!gtk_text_iter_begins_tag (&start, tag)) {
 449                         gtk_text_iter_backward_to_tag_toggle (&start, tag);
 450                         selection_changed = TRUE;
 451                 }
 452
 453         tag = iter_has_recipient (&end);
 454         if (tag != NULL)
 455                 if (!gtk_text_iter_ends_tag (&end, tag)) {
 456                         gtk_text_iter_forward_to_tag_toggle (&end, tag);
 457                         selection_changed = TRUE;
 458                 }
 459
 460         if (selection_changed) {
 461                 gtk_text_buffer_select_range (buffer, &start, &end);
 462         } else {
 463                 GTK_TEXT_VIEW (priv->text_view)->pending_place_cursor_button = 0;
 464         }
 465
 466         return FALSE;
 467 }
 468
 469 static void
 470 modest_recpt_editor_on_focus_in (GtkTextView *text_view,
 471                                  GdkEventFocus *event,
 472                                  ModestRecptEditor *editor)
 473 {
 474         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 475         gtk_text_view_place_cursor_onscreen (GTK_TEXT_VIEW (priv->text_view));
 476 }
 477
 478 static gboolean
 479 is_valid_insert (const gchar *text, gint len)
 480 {
 481         gunichar c;
 482         gunichar next_c;
 483         gint i= 0;
 484         gboolean quoted = FALSE;
 485         const gchar *current, *next_current;
 486         if (text == NULL)
 487                 return TRUE;
 488         current = text;
 489
 490         while (((len == -1)||(i < len)) && (*current != '\0')) {
 491                 c = g_utf8_get_char (current);
 492                 next_current = g_utf8_next_char (current);
 493                 if (next_current && *next_current != '\0')
 494                         next_c = g_utf8_get_char (g_utf8_next_char (current));
 495                 else
 496                         next_c = 0;
 497                 if (!quoted && ((c == g_utf8_get_char(",") || c == g_utf8_get_char (";")))) {
 498                         if ((next_c != 0) && (next_c != g_utf8_get_char ("\n")))
 499                                 return FALSE;
 500                         else {
 501                           current = g_utf8_next_char (next_current);
 502                           continue;
 503                         }
 504                 }
 505                 if (c == 0x2022 || c == 0xfffc ||
 506                     c == g_utf8_get_char ("\n") ||
 507                     c == g_utf8_get_char ("\t"))
 508                         return FALSE;
 509                 if (c == g_utf8_get_char ("\""))
 510                         quoted = !quoted;
 511                 current = g_utf8_next_char (current);
 512                 i = current - text;
 513         }
 514         return TRUE;
 515 }
 516
 517 static gchar *
 518 create_valid_text (const gchar *text, gint len)
 519 {
 520         gunichar c;
 521         gunichar next_c;
 522         gint i= 0;
 523         GString *str;
 524         gboolean quoted = FALSE;
 525         const gchar *current, *next_current;
 526
 527         if (text == NULL)
 528                 return NULL;
 529
 530         str = g_string_new ("");
 531         current = text;
 532
 533         while (((len == -1)||(i < len)) && (*current != '\0')) {
 534                 c = g_utf8_get_char (current);
 535                 next_current = g_utf8_next_char (current);
 536                 if (next_current && *next_current != '\0')
 537                         next_c = g_utf8_get_char (g_utf8_next_char (current));
 538                 else
 539                         next_c = 0;
 540                 if (c != 0x2022 && c != 0xfffc &&
 541                     c != g_utf8_get_char ("\n") &&
 542                     c != g_utf8_get_char ("\t"))
 543                         str = g_string_append_unichar (str, c);
 544                 if (!quoted && ((c == g_utf8_get_char(",") || c == g_utf8_get_char (";")))) {
 545                         if ((next_c != 0) && (next_c != g_utf8_get_char ("\n")))
 546                                 str = g_string_append_c (str, '\n');
 547                 }
 548                 if (c == g_utf8_get_char ("\""))
 549                         quoted = !quoted;
 550                 current = g_utf8_next_char (current);
 551                 i = current - text;
 552         }
 553         return g_string_free (str, FALSE);
 554 }
 555
 556 static void
 557 modest_recpt_editor_on_insert_text (GtkTextBuffer *buffer,
 558                                     GtkTextIter *location,
 559                                     gchar *text,
 560                                     gint len,
 561                                     ModestRecptEditor *editor)
 562 {
 563         GtkTextIter prev;
 564         gunichar prev_char;
 565         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 566
 567         if (len > 1024)
 568                 len = 1024;
 569
 570         if (!is_valid_insert (text, len)) {
 571                 gchar *new_text = create_valid_text (text, len);
 572                 g_signal_stop_emission_by_name (G_OBJECT (buffer), "insert-text");
 573                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text,
 574                                                  editor);
 575                 gtk_text_buffer_insert (buffer, location, new_text, -1);
 576                 g_signal_handlers_unblock_by_func (buffer,
 577                                                    modest_recpt_editor_on_insert_text,
 578                                                    editor);
 579                 g_free (new_text);
 580                 return;
 581         }
 582
 583         if (iter_has_recipient (location)) {
 584                 gtk_text_buffer_get_end_iter (buffer, location);
 585                 gtk_text_buffer_place_cursor (buffer, location);
 586         }
 587
 588         if (gtk_text_iter_is_start (location))
 589                 return;
 590
 591         if (gtk_text_iter_is_end (location)) {
 592                 prev = *location;
 593                 if (!gtk_text_iter_backward_char (&prev))
 594                         return;
 595                 prev_char = gtk_text_iter_get_char (&prev);
 596                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 597                 if ((prev_char == ';'||prev_char == ',')&&(!quote_opened(location))) {
 598                         GtkTextMark *insert;
 599                         gtk_text_buffer_insert (buffer, location, "\n",-1);
 600                         insert = gtk_text_buffer_get_insert (buffer);
 601                         gtk_text_view_scroll_to_iter (GTK_TEXT_VIEW (priv->text_view), location, 0.0,TRUE, 0.0, 1.0);
 602                 }
 603                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 604
 605         }
 606
 607 }
 608
 609 static GtkTextTag *
 610 iter_has_recipient (GtkTextIter *iter)
 611 {
 612         GSList *tags, *node;
 613         GtkTextTag *result = NULL;
 614
 615         tags = gtk_text_iter_get_tags (iter);
 616
 617         for (node = tags; node != NULL; node = g_slist_next (node)) {
 618                 GtkTextTag *tag = GTK_TEXT_TAG (node->data);
 619
 620                 if (g_object_get_data (G_OBJECT (tag), "recipient-tag-id")) {
 621                         result = tag;
 622                         break;
 623                 }
 624         }
 625         g_slist_free (tags);
 626         return result;
 627 }
 628
 629 static GtkTextTag *
 630 prev_iter_has_recipient (GtkTextIter *iter)
 631 {
 632         GtkTextIter prev;
 633
 634         prev = *iter;
 635         gtk_text_iter_backward_char (&prev);
 636         return iter_has_recipient (&prev);
 637 }
 638
 639 /* static GtkTextTag * */
 640 /* next_iter_has_recipient (GtkTextIter *iter) */
 641 /* { */
 642 /*      GtkTextIter next; */
 643
 644 /*      next = *iter; */
 645 /*      return iter_has_recipient (&next); */
 646 /* } */
 647
 648 static gunichar
 649 iter_previous_char (GtkTextIter *iter)
 650 {
 651         GtkTextIter prev;
 652
 653         prev = *iter;
 654         gtk_text_iter_backward_char (&prev);
 655         return gtk_text_iter_get_char (&prev);
 656 }
 657
 658 /* static gunichar  */
 659 /* iter_next_char (GtkTextIter *iter) */
 660 /* { */
 661 /*      GtkTextIter next; */
 662
 663 /*      next = *iter; */
 664 /*      gtk_text_iter_forward_char (&next); */
 665 /*      return gtk_text_iter_get_char (&next); */
 666 /* } */
 667
 668 static void
 669 select_tag_of_iter (GtkTextIter *iter, GtkTextTag *tag)
 670 {
 671         GtkTextIter start, end;
 672
 673         start = *iter;
 674         if (!gtk_text_iter_begins_tag (&start, tag))
 675                 gtk_text_iter_backward_to_tag_toggle (&start, tag);
 676         end = *iter;
 677         if (!gtk_text_iter_ends_tag (&end, tag))
 678                 gtk_text_iter_forward_to_tag_toggle (&end, tag);
 679         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &start, &end);
 680 }
 681
 682 static gboolean
 683 quote_opened (GtkTextIter *iter)
 684 {
 685         GtkTextIter start;
 686         GtkTextBuffer *buffer;
 687         gboolean opened = FALSE;
 688
 689         buffer = gtk_text_iter_get_buffer (iter);
 690         gtk_text_buffer_get_start_iter (buffer, &start);
 691
 692         while (!gtk_text_iter_equal (&start, iter)) {
 693                 gunichar current_char = gtk_text_iter_get_char (&start);
 694                 if (current_char == '"')
 695                         opened = !opened;
 696                 else if (current_char == '\\')
 697                         gtk_text_iter_forward_char (&start);
 698                 if (!gtk_text_iter_equal (&start, iter))
 699                         gtk_text_iter_forward_char (&start);
 700
 701         }
 702         return opened;
 703
 704 }
 705
 706
 707 static gboolean
 708 modest_recpt_editor_on_key_press_event (GtkTextView *text_view,
 709                                           GdkEventKey *key,
 710                                           ModestRecptEditor *editor)
 711 {
 712         GtkTextMark *insert;
 713         GtkTextMark *selection;
 714         GtkTextBuffer * buffer;
 715         GtkTextIter location, selection_loc;
 716         GtkTextTag *tag;
 717
 718         buffer = gtk_text_view_get_buffer (text_view);
 719         insert = gtk_text_buffer_get_insert (buffer);
 720         selection = gtk_text_buffer_get_selection_bound (buffer);
 721
 722         /* cases to cover:
 723          *    * cursor is on resolved recipient:
 724          *        - right should go to first character after the recipient (usually ; or ,)
 725          *        - left should fo to the first character before the recipient
 726          *        - return should run check names on the recipient.
 727          *    * cursor is just after a recipient:
 728          *        - right should go to the next character. If it's a recipient, should select
 729          *          it
 730          *        - left should go to the previous character. If it's a recipient, should go
 731          *          to the first character of the recipient, and select it.
 732          *    * cursor is on arbitrary text:
 733          *        - return should add a ; and go to the next line
 734          *        - left or right standard ones.
 735          *    * cursor is after a \n:
 736          *        - left should go to the character before the \n (as if \n was not a character)
 737          *    * cursor is before a \n:
 738          *        - right should go to the character after the \n
 739          */
 740
 741         gtk_text_buffer_get_iter_at_mark (buffer, &location, insert);
 742         gtk_text_buffer_get_iter_at_mark (buffer, &selection_loc, selection);
 743
 744         switch (key->keyval) {
 745         case GDK_Left:
 746         case GDK_KP_Left:
 747         {
 748                 gboolean cursor_ready = FALSE;
 749                 while (!cursor_ready) {
 750                         if (iter_previous_char (&location) == '\n') {
 751                                 gtk_text_iter_backward_char (&location);
 752                         } else {
 753                                 cursor_ready = TRUE;
 754                         }
 755                 }
 756                 tag = iter_has_recipient (&location);
 757                 if ((tag != NULL)&& (gtk_text_iter_is_start (&location) || !(gtk_text_iter_begins_tag (&location, tag)))) {
 758                         select_tag_of_iter (&location, tag);
 759                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 760                         return TRUE;
 761                 }
 762                 gtk_text_iter_backward_char (&location);
 763                 tag = iter_has_recipient (&location);
 764                 if (tag != NULL)
 765                         select_tag_of_iter (&location, tag);
 766                 else {
 767                         gtk_text_buffer_place_cursor (buffer, &location);
 768                 }
 769                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 770
 771                 return TRUE;
 772         }
 773         break;
 774         case GDK_Right:
 775         case GDK_KP_Right:
 776         {
 777                 gboolean cursor_moved = FALSE;
 778
 779                 tag = iter_has_recipient (&location);
 780                 if ((tag != NULL)&&(!gtk_text_iter_ends_tag (&location, tag))) {
 781                         gtk_text_iter_forward_to_tag_toggle (&location, tag);
 782                         while (gtk_text_iter_get_char (&location) == '\n')
 783                                 gtk_text_iter_forward_char (&location);
 784                         gtk_text_buffer_place_cursor (buffer, &location);
 785                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 786                         return TRUE;
 787                 }
 788
 789                 while (gtk_text_iter_get_char (&location) == '\n') {
 790                         gtk_text_iter_forward_char (&location);
 791                         cursor_moved = TRUE;
 792                 }
 793                 if (!cursor_moved)
 794                         gtk_text_iter_forward_char (&location);
 795                 while (gtk_text_iter_get_char (&location) == '\n') {
 796                         gtk_text_iter_forward_char (&location);
 797                         cursor_moved = TRUE;
 798                 }
 799
 800                 tag = iter_has_recipient (&location);
 801                 if (tag != NULL)
 802                         select_tag_of_iter (&location, tag);
 803                 else
 804                         gtk_text_buffer_place_cursor (buffer, &location);
 805                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 806                 return TRUE;
 807         }
 808         break;
 809         case GDK_Return:
 810         case GDK_KP_Enter:
 811         {
 812                 gint insert_offset, selection_offset;
 813                 insert_offset = gtk_text_iter_get_offset (&location);
 814                 selection_offset = gtk_text_iter_get_offset (&selection_loc);
 815                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 816                 if (selection_offset > insert_offset)
 817                         location = selection_loc;
 818                 tag = iter_has_recipient (&location);
 819                 if (tag != NULL) {
 820                         gtk_text_buffer_get_end_iter (buffer, &location);
 821                         gtk_text_buffer_place_cursor (buffer, &location);
 822                         if ((iter_previous_char (&location) != ';')&&(iter_previous_char (&location) != ','))
 823                                 gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
 824                         gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
 825                 } else {
 826                         gunichar prev_char = iter_previous_char (&location);
 827                         if ((gtk_text_iter_is_start (&location))||(prev_char == '\n')
 828                             ||(prev_char == ';')||(prev_char == ','))
 829                                 g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
 830                         else {
 831                                 if ((prev_char != ';') && (prev_char != ','))
 832                                         gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
 833                                 gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
 834                         }
 835                 }
 836                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 837                 return TRUE;
 838         }
 839         break;
 840         case GDK_BackSpace:
 841         {
 842                 #if GTK_CHECK_VERSION(2, 10, 0) /* gtk_text_buffer_get_has_selection is only available in GTK+ 2.10 */
 843                 if (gtk_text_buffer_get_has_selection (buffer)) {
 844                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 845                         return TRUE;
 846                 }
 847                 #else
 848                 if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
 849                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 850                         return TRUE;
 851                 }
 852                 #endif
 853
 854                 tag = prev_iter_has_recipient (&location);
 855                 if (tag != NULL) {
 856                         GtkTextIter iter_in_tag;
 857                         iter_in_tag = location;
 858                         gtk_text_iter_backward_char (&iter_in_tag);
 859                         select_tag_of_iter (&iter_in_tag, tag);
 860                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 861                         return TRUE;
 862                 }
 863                 return FALSE;
 864         }
 865         break;
 866         default:
 867                 return FALSE;
 868         }
 869 }
 870
 871 static void
 872 modest_recpt_editor_move_cursor_to_end (ModestRecptEditor *editor)
 873 {
 874         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 875         GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 876         GtkTextIter start, end;
 877
 878         gtk_text_buffer_get_end_iter (buffer, &start);
 879         end = start;
 880         gtk_text_buffer_select_range (buffer, &start, &end);
 881
 882
 883 }
 884
 885 void
 886 modest_recpt_editor_grab_focus (ModestRecptEditor *recpt_editor)
 887 {
 888         ModestRecptEditorPrivate *priv;
 889
 890         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 891         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 892
 893         gtk_widget_grab_focus (priv->text_view);
 894 }
 895
 896 gboolean
 897 modest_recpt_editor_has_focus (ModestRecptEditor *recpt_editor)
 898 {
 899         ModestRecptEditorPrivate *priv;
 900
 901         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), FALSE);
 902         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 903
 904         return gtk_widget_is_focus (priv->text_view);
 905 }
 906
 907 static void
 908 modest_recpt_editor_finalize (GObject *object)
 909 {
 910         ModestRecptEditorPrivate *priv;
 911         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (object);
 912
 913         if (priv->recipients) {
 914                 g_free (priv->recipients);
 915                 priv->recipients = NULL;
 916         }
 917
 918         (*parent_class->finalize) (object);
 919
 920         return;
 921 }
 922
 923 static void
 924 modest_recpt_editor_class_init (ModestRecptEditorClass *klass)
 925 {
 926         GObjectClass *object_class;
 927         GtkWidgetClass *widget_class;
 928
 929         parent_class = g_type_class_peek_parent (klass);
 930         object_class = (GObjectClass*) klass;
 931         widget_class = GTK_WIDGET_CLASS (klass);
 932
 933         object_class->finalize = modest_recpt_editor_finalize;
 934
 935         g_type_class_add_private (object_class, sizeof (ModestRecptEditorPrivate));
 936
 937         signals[OPEN_ADDRESSBOOK_SIGNAL] =
 938                 g_signal_new ("open-addressbook",
 939                               G_TYPE_FROM_CLASS (object_class),
 940                               G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
 941                               G_STRUCT_OFFSET (ModestRecptEditorClass, open_addressbook),
 942                               NULL, NULL,
 943                               g_cclosure_marshal_VOID__VOID,
 944                               G_TYPE_NONE, 0);
 945
 946         return;
 947 }
 948
 949 GType
 950 modest_recpt_editor_get_type (void)
 951 {
 952         static GType type = 0;
 953
 954         if (G_UNLIKELY(type == 0))
 955         {
 956                 static const GTypeInfo info =
 957                 {
 958                   sizeof (ModestRecptEditorClass),
 959                   NULL,   /* base_init */
 960                   NULL,   /* base_finalize */
 961                   (GClassInitFunc) modest_recpt_editor_class_init,   /* class_init */
 962                   NULL,   /* class_finalize */
 963                   NULL,   /* class_data */
 964                   sizeof (ModestRecptEditor),
 965                   0,      /* n_preallocs */
 966                   modest_recpt_editor_instance_init    /* instance_init */
 967                 };
 968
 969                 type = g_type_register_static (GTK_TYPE_HBOX,
 970                         "ModestRecptEditor",
 971                         &info, 0);
 972
 973         }
 974
 975         return type;
 976 }