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