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