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 #ifdef MAEMO_CHANGES
 338         hildon_gtk_text_view_set_input_mode (GTK_TEXT_VIEW (priv->text_view),
 339                 HILDON_GTK_INPUT_MODE_FULL);
 340 #endif
 341
 342         priv->recipients = NULL;
 343
 344         priv->scrolled_window = modest_scroll_text_new (GTK_TEXT_VIEW (priv->text_view), 1024);
 345         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_POLICY_NEVER,
 346                                         GTK_POLICY_AUTOMATIC);
 347         gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_SHADOW_IN);
 348 /*      gtk_container_add (GTK_CONTAINER (priv->scrolled_window), priv->text_view); */
 349
 350         gtk_box_pack_start (GTK_BOX (instance), priv->scrolled_window, TRUE, TRUE, 0);
 351 /*      gtk_box_pack_start (GTK_BOX (instance), priv->text_view, TRUE, TRUE, 0); */
 352         gtk_box_pack_end (GTK_BOX (instance), priv->abook_button, FALSE, FALSE, 0);
 353
 354         gtk_text_view_set_accepts_tab (GTK_TEXT_VIEW (priv->text_view), FALSE);
 355         gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (priv->text_view), TRUE);
 356         gtk_text_view_set_editable (GTK_TEXT_VIEW (priv->text_view), TRUE);
 357
 358         gtk_text_view_set_justification (GTK_TEXT_VIEW (priv->text_view), GTK_JUSTIFY_LEFT);
 359         gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (priv->text_view), GTK_WRAP_CHAR);
 360
 361         gtk_widget_set_size_request (priv->text_view, 75, -1);
 362
 363         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 364         g_signal_connect (G_OBJECT (priv->abook_button), "clicked", G_CALLBACK (modest_recpt_editor_on_abook_clicked), instance);
 365         g_signal_connect (G_OBJECT (priv->text_view), "button-release-event", G_CALLBACK (modest_recpt_editor_on_button_release_event), instance);
 366         g_signal_connect (G_OBJECT (priv->text_view), "key-press-event", G_CALLBACK (modest_recpt_editor_on_key_press_event), instance);
 367         g_signal_connect (G_OBJECT (priv->text_view), "focus-in-event", G_CALLBACK (modest_recpt_editor_on_focus_in), instance);
 368         g_signal_connect (G_OBJECT (buffer), "insert-text", G_CALLBACK (modest_recpt_editor_on_insert_text), instance);
 369
 370 /*      gtk_container_set_focus_child (GTK_CONTAINER (instance), priv->text_view); */
 371
 372         return;
 373 }
 374
 375 void
 376 modest_recpt_editor_set_field_size_group (ModestRecptEditor *recpt_editor, GtkSizeGroup *size_group)
 377 {
 378         ModestRecptEditorPrivate *priv;
 379
 380         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 381         g_return_if_fail (GTK_IS_SIZE_GROUP (size_group));
 382         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 383
 384         gtk_size_group_add_widget (size_group, priv->scrolled_window);
 385 }
 386
 387 GtkTextBuffer *
 388 modest_recpt_editor_get_buffer (ModestRecptEditor *recpt_editor)
 389 {
 390         ModestRecptEditorPrivate *priv;
 391
 392         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), NULL);
 393         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 394
 395         return gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 396 }
 397
 398 static void
 399 modest_recpt_editor_on_abook_clicked (GtkButton *button, ModestRecptEditor *editor)
 400 {
 401         g_return_if_fail (MODEST_IS_RECPT_EDITOR (editor));
 402
 403         g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
 404 }
 405
 406 static gboolean
 407 modest_recpt_editor_on_button_release_event (GtkWidget *widget,
 408                                              GdkEventButton *event,
 409                                              ModestRecptEditor *recpt_editor)
 410 {
 411         ModestRecptEditorPrivate *priv;
 412         GtkTextIter location, start, end;
 413         GtkTextMark *mark;
 414         GtkTextBuffer *buffer;
 415         GtkTextTag *tag;
 416         gboolean selection_changed = FALSE;
 417
 418         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 419
 420         buffer = modest_recpt_editor_get_buffer (recpt_editor);
 421         mark = gtk_text_buffer_get_insert (buffer);
 422         gtk_text_buffer_get_iter_at_mark (buffer, &location, mark);
 423
 424         gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
 425
 426         tag = iter_has_recipient (&start);
 427         if (tag != NULL)
 428                 if (!gtk_text_iter_begins_tag (&start, tag)) {
 429                         gtk_text_iter_backward_to_tag_toggle (&start, tag);
 430                         selection_changed = TRUE;
 431                 }
 432
 433         tag = iter_has_recipient (&end);
 434         if (tag != NULL)
 435                 if (!gtk_text_iter_ends_tag (&end, tag)) {
 436                         gtk_text_iter_forward_to_tag_toggle (&end, tag);
 437                         selection_changed = TRUE;
 438                 }
 439
 440         if (selection_changed) {
 441                 gtk_text_buffer_select_range (buffer, &start, &end);
 442         } else {
 443                 GTK_TEXT_VIEW (priv->text_view)->pending_place_cursor_button = 0;
 444         }
 445
 446         return FALSE;
 447 }
 448
 449 static void
 450 modest_recpt_editor_on_focus_in (GtkTextView *text_view,
 451                                  GdkEventFocus *event,
 452                                  ModestRecptEditor *editor)
 453 {
 454         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 455         gtk_text_view_place_cursor_onscreen (GTK_TEXT_VIEW (priv->text_view));
 456 }
 457
 458 static gboolean
 459 is_valid_insert (const gchar *text, gint len)
 460 {
 461         gunichar c;
 462         gunichar next_c;
 463         gint i= 0;
 464         gboolean quoted = FALSE;
 465         const gchar *current, *next_current;
 466         if (text == NULL)
 467                 return TRUE;
 468         current = text;
 469
 470         while (((len == -1)||(i < len)) && (*current != '\0')) {
 471                 c = g_utf8_get_char (current);
 472                 next_current = g_utf8_next_char (current);
 473                 if (next_current && *next_current != '\0')
 474                         next_c = g_utf8_get_char (g_utf8_next_char (current));
 475                 else
 476                         next_c = 0;
 477                 if (!quoted && ((c == g_utf8_get_char(",") || c == g_utf8_get_char (";")))) {
 478                         if ((next_c != 0) && (next_c != g_utf8_get_char ("\n")))
 479                                 return FALSE;
 480                         else {
 481                           current = g_utf8_next_char (next_current);
 482                           continue;
 483                         }
 484                 }
 485                 if (c == 0x2022 || c == 0xfffc ||
 486                     c == g_utf8_get_char ("\n") ||
 487                     c == g_utf8_get_char ("\t"))
 488                         return FALSE;
 489                 if (c == g_utf8_get_char ("\""))
 490                         quoted = !quoted;
 491                 current = g_utf8_next_char (current);
 492                 i = current - text;
 493         }
 494         return TRUE;
 495 }
 496
 497 static gchar *
 498 create_valid_text (const gchar *text, gint len)
 499 {
 500         gunichar c;
 501         gunichar next_c;
 502         gint i= 0;
 503         GString *str;
 504         gboolean quoted = FALSE;
 505         const gchar *current, *next_current;
 506
 507         if (text == NULL)
 508                 return NULL;
 509
 510         str = g_string_new ("");
 511         current = text;
 512
 513         while (((len == -1)||(i < len)) && (*current != '\0')) {
 514                 c = g_utf8_get_char (current);
 515                 next_current = g_utf8_next_char (current);
 516                 if (next_current && *next_current != '\0')
 517                         next_c = g_utf8_get_char (g_utf8_next_char (current));
 518                 else
 519                         next_c = 0;
 520                 if (c != 0x2022 && c != 0xfffc &&
 521                     c != g_utf8_get_char ("\n") &&
 522                     c != g_utf8_get_char ("\t"))
 523                         str = g_string_append_unichar (str, c);
 524                 if (!quoted && ((c == g_utf8_get_char(",") || c == g_utf8_get_char (";")))) {
 525                         if ((next_c != 0) && (next_c != g_utf8_get_char ("\n")))
 526                                 str = g_string_append_c (str, '\n');
 527                 }
 528                 if (c == g_utf8_get_char ("\""))
 529                         quoted = !quoted;
 530                 current = g_utf8_next_char (current);
 531                 i = current - text;
 532         }
 533         return g_string_free (str, FALSE);
 534 }
 535
 536 static void
 537 modest_recpt_editor_on_insert_text (GtkTextBuffer *buffer,
 538                                     GtkTextIter *location,
 539                                     gchar *text,
 540                                     gint len,
 541                                     ModestRecptEditor *editor)
 542 {
 543         GtkTextIter prev;
 544         gunichar prev_char;
 545         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 546
 547         if (len > 1024)
 548                 len = 1024;
 549
 550         if (!is_valid_insert (text, len)) {
 551                 gchar *new_text = create_valid_text (text, len);
 552                 g_signal_stop_emission_by_name (G_OBJECT (buffer), "insert-text");
 553                 gtk_text_buffer_insert (buffer, location, new_text, -1);
 554                 g_free (new_text);
 555                 return;
 556         }
 557
 558         if (iter_has_recipient (location)) {
 559                 gtk_text_buffer_get_end_iter (buffer, location);
 560                 gtk_text_buffer_place_cursor (buffer, location);
 561         }
 562
 563         if (gtk_text_iter_is_start (location))
 564                 return;
 565
 566         if (gtk_text_iter_is_end (location)) {
 567                 prev = *location;
 568                 if (!gtk_text_iter_backward_char (&prev))
 569                         return;
 570                 prev_char = gtk_text_iter_get_char (&prev);
 571                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 572                 if ((prev_char == ';'||prev_char == ',')&&(!quote_opened(location))) {
 573                         GtkTextMark *insert;
 574                         gtk_text_buffer_insert (buffer, location, "\n",-1);
 575                         insert = gtk_text_buffer_get_insert (buffer);
 576                         gtk_text_view_scroll_to_iter (GTK_TEXT_VIEW (priv->text_view), location, 0.0,TRUE, 0.0, 1.0);
 577                 }
 578                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 579
 580         }
 581
 582 }
 583
 584 static GtkTextTag *
 585 iter_has_recipient (GtkTextIter *iter)
 586 {
 587         GSList *tags, *node;
 588         GtkTextTag *result = NULL;
 589
 590         tags = gtk_text_iter_get_tags (iter);
 591
 592         for (node = tags; node != NULL; node = g_slist_next (node)) {
 593                 GtkTextTag *tag = GTK_TEXT_TAG (node->data);
 594
 595                 if (g_object_get_data (G_OBJECT (tag), "recipient-tag-id")) {
 596                         result = tag;
 597                         break;
 598                 }
 599         }
 600         g_slist_free (tags);
 601         return result;
 602 }
 603
 604 static GtkTextTag *
 605 prev_iter_has_recipient (GtkTextIter *iter)
 606 {
 607         GtkTextIter prev;
 608
 609         prev = *iter;
 610         gtk_text_iter_backward_char (&prev);
 611         return iter_has_recipient (&prev);
 612 }
 613
 614 /* static GtkTextTag * */
 615 /* next_iter_has_recipient (GtkTextIter *iter) */
 616 /* { */
 617 /*      GtkTextIter next; */
 618
 619 /*      next = *iter; */
 620 /*      return iter_has_recipient (&next); */
 621 /* } */
 622
 623 static gunichar
 624 iter_previous_char (GtkTextIter *iter)
 625 {
 626         GtkTextIter prev;
 627
 628         prev = *iter;
 629         gtk_text_iter_backward_char (&prev);
 630         return gtk_text_iter_get_char (&prev);
 631 }
 632
 633 /* static gunichar  */
 634 /* iter_next_char (GtkTextIter *iter) */
 635 /* { */
 636 /*      GtkTextIter next; */
 637
 638 /*      next = *iter; */
 639 /*      gtk_text_iter_forward_char (&next); */
 640 /*      return gtk_text_iter_get_char (&next); */
 641 /* } */
 642
 643 static void
 644 select_tag_of_iter (GtkTextIter *iter, GtkTextTag *tag)
 645 {
 646         GtkTextIter start, end;
 647
 648         start = *iter;
 649         if (!gtk_text_iter_begins_tag (&start, tag))
 650                 gtk_text_iter_backward_to_tag_toggle (&start, tag);
 651         end = *iter;
 652         if (!gtk_text_iter_ends_tag (&end, tag))
 653                 gtk_text_iter_forward_to_tag_toggle (&end, tag);
 654         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &start, &end);
 655 }
 656
 657 static gboolean
 658 quote_opened (GtkTextIter *iter)
 659 {
 660         GtkTextIter start;
 661         GtkTextBuffer *buffer;
 662         gboolean opened = FALSE;
 663
 664         buffer = gtk_text_iter_get_buffer (iter);
 665         gtk_text_buffer_get_start_iter (buffer, &start);
 666
 667         while (!gtk_text_iter_equal (&start, iter)) {
 668                 gunichar current_char = gtk_text_iter_get_char (&start);
 669                 if (current_char == '"')
 670                         opened = !opened;
 671                 else if (current_char == '\\')
 672                         gtk_text_iter_forward_char (&start);
 673                 if (!gtk_text_iter_equal (&start, iter))
 674                         gtk_text_iter_forward_char (&start);
 675
 676         }
 677         return opened;
 678
 679 }
 680
 681
 682 static gboolean
 683 modest_recpt_editor_on_key_press_event (GtkTextView *text_view,
 684                                           GdkEventKey *key,
 685                                           ModestRecptEditor *editor)
 686 {
 687         GtkTextMark *insert;
 688         GtkTextMark *selection;
 689         GtkTextBuffer * buffer;
 690         GtkTextIter location, selection_loc;
 691         GtkTextTag *tag;
 692
 693         buffer = gtk_text_view_get_buffer (text_view);
 694         insert = gtk_text_buffer_get_insert (buffer);
 695         selection = gtk_text_buffer_get_selection_bound (buffer);
 696
 697         /* cases to cover:
 698          *    * cursor is on resolved recipient:
 699          *        - right should go to first character after the recipient (usually ; or ,)
 700          *        - left should fo to the first character before the recipient
 701          *        - return should run check names on the recipient.
 702          *    * cursor is just after a recipient:
 703          *        - right should go to the next character. If it's a recipient, should select
 704          *          it
 705          *        - left should go to the previous character. If it's a recipient, should go
 706          *          to the first character of the recipient, and select it.
 707          *    * cursor is on arbitrary text:
 708          *        - return should add a ; and go to the next line
 709          *        - left or right standard ones.
 710          *    * cursor is after a \n:
 711          *        - left should go to the character before the \n (as if \n was not a character)
 712          *    * cursor is before a \n:
 713          *        - right should go to the character after the \n
 714          */
 715
 716         gtk_text_buffer_get_iter_at_mark (buffer, &location, insert);
 717         gtk_text_buffer_get_iter_at_mark (buffer, &selection_loc, selection);
 718
 719         switch (key->keyval) {
 720         case GDK_Left:
 721         case GDK_KP_Left:
 722         {
 723                 gboolean cursor_ready = FALSE;
 724                 while (!cursor_ready) {
 725                         if (iter_previous_char (&location) == '\n') {
 726                                 gtk_text_iter_backward_char (&location);
 727                         } else {
 728                                 cursor_ready = TRUE;
 729                         }
 730                 }
 731                 tag = iter_has_recipient (&location);
 732                 if ((tag != NULL)&& (gtk_text_iter_is_start (&location) || !(gtk_text_iter_begins_tag (&location, tag)))) {
 733                         select_tag_of_iter (&location, tag);
 734                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 735                         return TRUE;
 736                 }
 737                 gtk_text_iter_backward_char (&location);
 738                 tag = iter_has_recipient (&location);
 739                 if (tag != NULL)
 740                         select_tag_of_iter (&location, tag);
 741                 else {
 742                         gtk_text_buffer_place_cursor (buffer, &location);
 743                 }
 744                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 745
 746                 return TRUE;
 747         }
 748         break;
 749         case GDK_Right:
 750         case GDK_KP_Right:
 751         {
 752                 gboolean cursor_moved = FALSE;
 753
 754                 tag = iter_has_recipient (&location);
 755                 if ((tag != NULL)&&(!gtk_text_iter_ends_tag (&location, tag))) {
 756                         gtk_text_iter_forward_to_tag_toggle (&location, tag);
 757                         while (gtk_text_iter_get_char (&location) == '\n')
 758                                 gtk_text_iter_forward_char (&location);
 759                         gtk_text_buffer_place_cursor (buffer, &location);
 760                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 761                         return TRUE;
 762                 }
 763
 764                 while (gtk_text_iter_get_char (&location) == '\n') {
 765                         gtk_text_iter_forward_char (&location);
 766                         cursor_moved = TRUE;
 767                 }
 768                 if (!cursor_moved)
 769                         gtk_text_iter_forward_char (&location);
 770                 while (gtk_text_iter_get_char (&location) == '\n') {
 771                         gtk_text_iter_forward_char (&location);
 772                         cursor_moved = TRUE;
 773                 }
 774
 775                 tag = iter_has_recipient (&location);
 776                 if (tag != NULL)
 777                         select_tag_of_iter (&location, tag);
 778                 else
 779                         gtk_text_buffer_place_cursor (buffer, &location);
 780                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 781                 return TRUE;
 782         }
 783         break;
 784         case GDK_Return:
 785         case GDK_KP_Enter:
 786         {
 787                 gint insert_offset, selection_offset;
 788                 insert_offset = gtk_text_iter_get_offset (&location);
 789                 selection_offset = gtk_text_iter_get_offset (&selection_loc);
 790                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 791                 if (selection_offset > insert_offset)
 792                         location = selection_loc;
 793                 tag = iter_has_recipient (&location);
 794                 if (tag != NULL) {
 795                         gtk_text_buffer_get_end_iter (buffer, &location);
 796                         gtk_text_buffer_place_cursor (buffer, &location);
 797                         if ((iter_previous_char (&location) != ';')&&(iter_previous_char (&location) != ','))
 798                                 gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
 799                         gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
 800                 } else {
 801                         gunichar prev_char = iter_previous_char (&location);
 802                         if ((gtk_text_iter_is_start (&location))||(prev_char == '\n')
 803                             ||(prev_char == ';')||(prev_char == ','))
 804                                 g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
 805                         else {
 806                                 if ((prev_char != ';') && (prev_char != ','))
 807                                         gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
 808                                 gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
 809                         }
 810                 }
 811                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 812                 return TRUE;
 813         }
 814         break;
 815         case GDK_BackSpace:
 816         {
 817                 #if GTK_CHECK_VERSION(2, 10, 0) /* gtk_text_buffer_get_has_selection is only available in GTK+ 2.10 */
 818                 if (gtk_text_buffer_get_has_selection (buffer)) {
 819                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 820                         return TRUE;
 821                 }
 822                 #else
 823                 if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
 824                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 825                         return TRUE;
 826                 }
 827                 #endif
 828
 829                 tag = prev_iter_has_recipient (&location);
 830                 if (tag != NULL) {
 831                         GtkTextIter iter_in_tag;
 832                         iter_in_tag = location;
 833                         gtk_text_iter_backward_char (&iter_in_tag);
 834                         select_tag_of_iter (&iter_in_tag, tag);
 835                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 836                         return TRUE;
 837                 }
 838                 return FALSE;
 839         }
 840         break;
 841         default:
 842                 return FALSE;
 843         }
 844 }
 845
 846 static void
 847 modest_recpt_editor_move_cursor_to_end (ModestRecptEditor *editor)
 848 {
 849         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 850         GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 851         GtkTextIter start, end;
 852
 853         gtk_text_buffer_get_end_iter (buffer, &start);
 854         end = start;
 855         gtk_text_buffer_select_range (buffer, &start, &end);
 856
 857
 858 }
 859
 860 void
 861 modest_recpt_editor_grab_focus (ModestRecptEditor *recpt_editor)
 862 {
 863         ModestRecptEditorPrivate *priv;
 864
 865         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 866         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 867
 868         gtk_widget_grab_focus (priv->text_view);
 869 }
 870
 871 gboolean
 872 modest_recpt_editor_has_focus (ModestRecptEditor *recpt_editor)
 873 {
 874         ModestRecptEditorPrivate *priv;
 875
 876         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), FALSE);
 877         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 878
 879         return gtk_widget_is_focus (priv->text_view);
 880 }
 881
 882 static void
 883 modest_recpt_editor_finalize (GObject *object)
 884 {
 885         ModestRecptEditorPrivate *priv;
 886         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (object);
 887
 888         if (priv->recipients) {
 889                 g_free (priv->recipients);
 890                 priv->recipients = NULL;
 891         }
 892
 893         (*parent_class->finalize) (object);
 894
 895         return;
 896 }
 897
 898 static void
 899 modest_recpt_editor_class_init (ModestRecptEditorClass *klass)
 900 {
 901         GObjectClass *object_class;
 902         GtkWidgetClass *widget_class;
 903
 904         parent_class = g_type_class_peek_parent (klass);
 905         object_class = (GObjectClass*) klass;
 906         widget_class = GTK_WIDGET_CLASS (klass);
 907
 908         object_class->finalize = modest_recpt_editor_finalize;
 909
 910         g_type_class_add_private (object_class, sizeof (ModestRecptEditorPrivate));
 911
 912         signals[OPEN_ADDRESSBOOK_SIGNAL] =
 913                 g_signal_new ("open-addressbook",
 914                               G_TYPE_FROM_CLASS (object_class),
 915                               G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
 916                               G_STRUCT_OFFSET (ModestRecptEditorClass, open_addressbook),
 917                               NULL, NULL,
 918                               g_cclosure_marshal_VOID__VOID,
 919                               G_TYPE_NONE, 0);
 920
 921         return;
 922 }
 923
 924 GType
 925 modest_recpt_editor_get_type (void)
 926 {
 927         static GType type = 0;
 928
 929         if (G_UNLIKELY(type == 0))
 930         {
 931                 static const GTypeInfo info =
 932                 {
 933                   sizeof (ModestRecptEditorClass),
 934                   NULL,   /* base_init */
 935                   NULL,   /* base_finalize */
 936                   (GClassInitFunc) modest_recpt_editor_class_init,   /* class_init */
 937                   NULL,   /* class_finalize */
 938                   NULL,   /* class_data */
 939                   sizeof (ModestRecptEditor),
 940                   0,      /* n_preallocs */
 941                   modest_recpt_editor_instance_init    /* instance_init */
 942                 };
 943
 944                 type = g_type_register_static (GTK_TYPE_HBOX,
 945                         "ModestRecptEditor",
 946                         &info, 0);
 947
 948         }
 949
 950         return type;
 951 }