git.maemo.org Git - modest/blob - src/widgets/modest-recpt-editor.c

   1 /* Copyright (c) 2007, Nokia Corporation
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  *   notice, this list of conditions and the following disclaimer.
  10  * * Redistributions in binary form must reproduce the above copyright
  11  *   notice, this list of conditions and the following disclaimer in the
  12  *   documentation and/or other materials provided with the distribution.
  13  * * Neither the name of the Nokia Corporation nor the names of its
  14  *   contributors may be used to endorse or promote products derived from
  15  *   this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  18  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  20  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #include <config.h>
  31
  32 #include <glib/gi18n-lib.h>
  33
  34 #include <gtk/gtkscrolledwindow.h>
  35 #include <gtk/gtktextview.h>
  36 #include <gtk/gtkimage.h>
  37 #include <gtk/gtkbutton.h>
  38
  39 #include <modest-text-utils.h>
  40 #include <modest-recpt-editor.h>
  41 #include <modest-scroll-text.h>
  42 #include <pango/pango-attributes.h>
  43 #include <string.h>
  44 #include <gdk/gdkkeysyms.h>
  45 #include <gtk/gtk.h>
  46
  47 /* FIXNE: we should have no maemo-deps in widgets/ */
  48 #ifndef MODEST_TOOLKIT_GTK
  49 #include "maemo/modest-hildon-includes.h"
  50 #endif /*!MODEST_TOOLKIT_GTK*/
  51
  52
  53 static GObjectClass *parent_class = NULL;
  54
  55 #define RECIPIENT_TAG_ID "recpt-id"
  56
  57 /* signals */
  58 enum {
  59         OPEN_ADDRESSBOOK_SIGNAL,
  60         LAST_SIGNAL
  61 };
  62
  63 typedef struct _ModestRecptEditorPrivate ModestRecptEditorPrivate;
  64
  65 struct _ModestRecptEditorPrivate
  66 {
  67         GtkWidget *text_view;
  68         GtkWidget *abook_button;
  69         GtkWidget *scrolled_window;
  70         gchar *recipients;
  71
  72 };
  73
  74 #define MODEST_RECPT_EDITOR_GET_PRIVATE(o)      \
  75         (G_TYPE_INSTANCE_GET_PRIVATE ((o), MODEST_TYPE_RECPT_EDITOR, ModestRecptEditorPrivate))
  76
  77 static guint signals[LAST_SIGNAL] = {0};
  78
  79 /* static functions: GObject */
  80 static void modest_recpt_editor_instance_init (GTypeInstance *instance, gpointer g_class);
  81 static void modest_recpt_editor_finalize (GObject *object);
  82 static void modest_recpt_editor_class_init (ModestRecptEditorClass *klass);
  83
  84 /* widget events */
  85 static void modest_recpt_editor_on_abook_clicked (GtkButton *button,
  86                                                   ModestRecptEditor *editor);
  87 static gboolean modest_recpt_editor_on_button_release_event (GtkWidget *widget,
  88                                                              GdkEventButton *event,
  89                                                              ModestRecptEditor *editor);
  90 static void modest_recpt_editor_move_cursor_to_end (ModestRecptEditor *editor);
  91 static void modest_recpt_editor_on_focus_in (GtkTextView *text_view,
  92                                              GdkEventFocus *event,
  93                                              ModestRecptEditor *editor);
  94 static void modest_recpt_editor_on_insert_text (GtkTextBuffer *buffer,
  95                                                 GtkTextIter *location,
  96                                                 gchar *text,
  97                                                 gint len,
  98                                                 ModestRecptEditor *editor);
  99 static gboolean modest_recpt_editor_on_key_press_event (GtkTextView *text_view,
 100                                                           GdkEventKey *key,
 101                                                           ModestRecptEditor *editor);
 102 static GtkTextTag *iter_has_recipient (GtkTextIter *iter);
 103 static gunichar iter_previous_char (GtkTextIter *iter);
 104 /* static gunichar iter_next_char (GtkTextIter *iter); */
 105 static GtkTextTag *prev_iter_has_recipient (GtkTextIter *iter);
 106 /* static GtkTextTag *next_iter_has_recipient (GtkTextIter *iter); */
 107 static void select_tag_of_iter (GtkTextIter *iter, GtkTextTag *tag);
 108 static gboolean quote_opened (GtkTextIter *iter);
 109 static gboolean is_valid_insert (const gchar *text, gint len);
 110 static gchar *create_valid_text (const gchar *text, gint len);
 111
 112 /**
 113  * modest_recpt_editor_new:
 114  *
 115  * Return value: a new #ModestRecptEditor instance implemented for Gtk+
 116  **/
 117 GtkWidget*
 118 modest_recpt_editor_new (void)
 119 {
 120         ModestRecptEditor *self = g_object_new (MODEST_TYPE_RECPT_EDITOR,
 121                                                 "homogeneous", FALSE,
 122                                                 "spacing", 1,
 123                                                 NULL);
 124
 125         return GTK_WIDGET (self);
 126 }
 127
 128 void
 129 modest_recpt_editor_set_recipients (ModestRecptEditor *recpt_editor, const gchar *recipients)
 130 {
 131         ModestRecptEditorPrivate *priv;
 132         GtkTextBuffer *buffer = NULL;
 133         gchar *valid_recipients = NULL;
 134
 135         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 136         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 137
 138         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 139
 140         valid_recipients = create_valid_text (recipients, -1);
 141         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 142         gtk_text_buffer_set_text (buffer, valid_recipients, -1);
 143         g_free (valid_recipients);
 144         if (GTK_WIDGET_REALIZED (recpt_editor))
 145                 gtk_widget_queue_resize (GTK_WIDGET (recpt_editor));
 146         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 147
 148 }
 149
 150 void
 151 modest_recpt_editor_add_recipients (ModestRecptEditor *recpt_editor, const gchar *recipients)
 152 {
 153         ModestRecptEditorPrivate *priv;
 154         GtkTextBuffer *buffer = NULL;
 155         GtkTextIter iter;
 156         gchar *string_to_add;
 157
 158         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 159         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 160
 161         if (recipients == NULL)
 162                 return;
 163
 164         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 165
 166         if (gtk_text_buffer_get_char_count (buffer) > 0) {
 167                 string_to_add = g_strconcat (";\n", recipients, NULL);
 168         } else {
 169                 string_to_add = g_strdup (recipients);
 170         }
 171
 172         gtk_text_buffer_get_end_iter (buffer, &iter);
 173
 174         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 175
 176         gtk_text_buffer_insert (buffer, &iter, string_to_add, -1);
 177
 178         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 179
 180         if (GTK_WIDGET_REALIZED (recpt_editor))
 181                 gtk_widget_queue_resize (GTK_WIDGET (recpt_editor));
 182
 183         g_free (string_to_add);
 184 }
 185
 186 void
 187 modest_recpt_editor_add_resolved_recipient (ModestRecptEditor *recpt_editor, GSList *email_list, const gchar * recipient_id)
 188 {
 189         ModestRecptEditorPrivate *priv;
 190         GtkTextBuffer *buffer = NULL;
 191         GtkTextIter start, end, iter;
 192         GtkTextTag *tag = NULL;
 193         GSList *node;
 194         gboolean is_first_recipient = TRUE;
 195
 196         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 197         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 198
 199         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 200
 201         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 202         gtk_text_buffer_get_bounds (buffer, &start, &end);
 203         if (gtk_text_buffer_get_char_count (buffer) > 0) {
 204                 gchar * buffer_contents;
 205
 206                 gtk_text_buffer_get_bounds (buffer, &start, &end);
 207                 buffer_contents = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 208                 if (!g_str_has_suffix (buffer_contents, "\n")) {
 209                         if (g_str_has_suffix (buffer_contents, ";")||(g_str_has_suffix (buffer_contents, ",")))
 210                                 gtk_text_buffer_insert (buffer, &end, "\n", -1);
 211                         else
 212                                 gtk_text_buffer_insert (buffer, &end, ";\n", -1);
 213                 }
 214                 g_free (buffer_contents);
 215         }
 216
 217         gtk_text_buffer_get_end_iter (buffer, &iter);
 218
 219         tag = gtk_text_buffer_create_tag (buffer, NULL,
 220                                           "underline", PANGO_UNDERLINE_SINGLE,
 221                                           "wrap-mode", GTK_WRAP_NONE,
 222                                           "editable", TRUE, NULL);
 223
 224         g_object_set_data (G_OBJECT (tag), "recipient-tag-id", GINT_TO_POINTER (RECIPIENT_TAG_ID));
 225         g_object_set_data_full (G_OBJECT (tag), "recipient-id", g_strdup (recipient_id), (GDestroyNotify) g_free);
 226
 227         for (node = email_list; node != NULL; node = g_slist_next (node)) {
 228                 gchar *recipient = (gchar *) node->data;
 229
 230                 if ((recipient) && (strlen (recipient) != 0)) {
 231
 232                         if (!is_first_recipient)
 233                         gtk_text_buffer_insert (buffer, &iter, "\n", -1);
 234
 235                         gtk_text_buffer_insert_with_tags (buffer, &iter, recipient, -1, tag, NULL);
 236                         gtk_text_buffer_insert (buffer, &iter, ";", -1);
 237                         is_first_recipient = FALSE;
 238                 }
 239         }
 240         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 241
 242         modest_recpt_editor_move_cursor_to_end (recpt_editor);
 243
 244 }
 245
 246 void
 247 modest_recpt_editor_replace_with_resolved_recipient (ModestRecptEditor *recpt_editor,
 248                                                      GtkTextIter *start, GtkTextIter *end,
 249                                                      GSList *email_list, const gchar * recipient_id)
 250 {
 251         ModestRecptEditorPrivate *priv;
 252         GtkTextBuffer *buffer;
 253         GtkTextTag *tag;
 254         GSList *node;
 255         gboolean is_first_recipient = TRUE;
 256
 257         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 258         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 259
 260         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 261         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 262
 263         gtk_text_buffer_delete (buffer, start, end);
 264
 265         tag = gtk_text_buffer_create_tag (buffer, NULL,
 266                                           "underline", PANGO_UNDERLINE_SINGLE,
 267                                           "wrap-mode", GTK_WRAP_NONE,
 268                                           "editable", TRUE, NULL);
 269
 270         g_object_set_data (G_OBJECT (tag), "recipient-tag-id", GINT_TO_POINTER (RECIPIENT_TAG_ID));
 271         g_object_set_data_full (G_OBJECT (tag), "recipient-id", g_strdup (recipient_id), (GDestroyNotify) g_free);
 272
 273         for (node = email_list; node != NULL; node = g_slist_next (node)) {
 274                 gchar *recipient = (gchar *) node->data;
 275
 276                 if ((recipient) && (strlen (recipient) != 0)) {
 277
 278                         if (!is_first_recipient)
 279                         gtk_text_buffer_insert (buffer, start, "\n", -1);
 280
 281                         gtk_text_buffer_insert_with_tags (buffer, start, recipient, -1, tag, NULL);
 282
 283                         if (node->next != NULL)
 284                                 gtk_text_buffer_insert (buffer, start, ";", -1);
 285                         is_first_recipient = FALSE;
 286                 }
 287         }
 288         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 289
 290 }
 291
 292
 293 const gchar *
 294 modest_recpt_editor_get_recipients (ModestRecptEditor *recpt_editor)
 295 {
 296         ModestRecptEditorPrivate *priv;
 297         GtkTextBuffer *buffer = NULL;
 298         GtkTextIter start, end;
 299         gchar *c;
 300
 301         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), NULL);
 302         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 303
 304         if (priv->recipients != NULL) {
 305                 g_free (priv->recipients);
 306                 priv->recipients = NULL;
 307         }
 308
 309         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 310
 311         gtk_text_buffer_get_start_iter (buffer, &start);
 312         gtk_text_buffer_get_end_iter (buffer, &end);
 313
 314         priv->recipients = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 315         for (c = priv->recipients; *c != '\0'; c = g_utf8_next_char (c)) {
 316                 if (*c == '\n') {
 317                         *c = ' ';
 318                 }
 319         }
 320
 321         return priv->recipients;
 322
 323 }
 324
 325 static void
 326 modest_recpt_editor_instance_init (GTypeInstance *instance, gpointer g_class)
 327 {
 328         ModestRecptEditorPrivate *priv;
 329         GtkWidget *abook_icon;
 330         GtkTextBuffer *buffer;
 331
 332         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (instance);
 333
 334         priv->abook_button = gtk_button_new ();
 335         gtk_button_set_relief (GTK_BUTTON (priv->abook_button), GTK_RELIEF_NONE);
 336         gtk_button_set_focus_on_click (GTK_BUTTON (priv->abook_button), FALSE);
 337         GTK_WIDGET_UNSET_FLAGS (priv->abook_button, GTK_CAN_FOCUS);
 338         gtk_button_set_alignment (GTK_BUTTON (priv->abook_button), 1.0, 1.0);
 339 #ifdef MODEST_TOOLKIT_HILDON2
 340         abook_icon = gtk_image_new_from_icon_name ("tasklaunch_contact", GTK_ICON_SIZE_BUTTON);
 341 #else
 342         abook_icon = gtk_image_new_from_icon_name ("qgn_list_addressbook", GTK_ICON_SIZE_BUTTON);
 343 #endif
 344         gtk_container_add (GTK_CONTAINER (priv->abook_button), abook_icon);
 345
 346         priv->text_view = gtk_text_view_new ();
 347         /* Auto-capitalization is the default, so let's turn it off: */
 348 #ifdef MAEMO_CHANGES
 349         hildon_gtk_text_view_set_input_mode (GTK_TEXT_VIEW (priv->text_view),
 350                 HILDON_GTK_INPUT_MODE_FULL);
 351 #endif
 352
 353         priv->recipients = NULL;
 354
 355         priv->scrolled_window = modest_scroll_text_new (GTK_TEXT_VIEW (priv->text_view), 1024);
 356         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_POLICY_NEVER,
 357                                         GTK_POLICY_AUTOMATIC);
 358         gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_SHADOW_IN);
 359 /*      gtk_container_add (GTK_CONTAINER (priv->scrolled_window), priv->text_view); */
 360
 361         gtk_box_pack_start (GTK_BOX (instance), priv->scrolled_window, TRUE, TRUE, 0);
 362 /*      gtk_box_pack_start (GTK_BOX (instance), priv->text_view, TRUE, TRUE, 0); */
 363         gtk_box_pack_end (GTK_BOX (instance), priv->abook_button, FALSE, FALSE, 0);
 364
 365         gtk_text_view_set_accepts_tab (GTK_TEXT_VIEW (priv->text_view), FALSE);
 366         gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (priv->text_view), TRUE);
 367         gtk_text_view_set_editable (GTK_TEXT_VIEW (priv->text_view), TRUE);
 368
 369         gtk_text_view_set_justification (GTK_TEXT_VIEW (priv->text_view), GTK_JUSTIFY_LEFT);
 370         gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (priv->text_view), GTK_WRAP_CHAR);
 371
 372         gtk_widget_set_size_request (priv->text_view, 75, -1);
 373
 374         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 375         g_signal_connect (G_OBJECT (priv->abook_button), "clicked", G_CALLBACK (modest_recpt_editor_on_abook_clicked), instance);
 376         g_signal_connect (G_OBJECT (priv->text_view), "button-release-event", G_CALLBACK (modest_recpt_editor_on_button_release_event), instance);
 377         g_signal_connect (G_OBJECT (priv->text_view), "key-press-event", G_CALLBACK (modest_recpt_editor_on_key_press_event), instance);
 378         g_signal_connect (G_OBJECT (priv->text_view), "focus-in-event", G_CALLBACK (modest_recpt_editor_on_focus_in), instance);
 379         g_signal_connect (G_OBJECT (buffer), "insert-text", G_CALLBACK (modest_recpt_editor_on_insert_text), instance);
 380
 381 /*      gtk_container_set_focus_child (GTK_CONTAINER (instance), priv->text_view); */
 382
 383         return;
 384 }
 385
 386 void
 387 modest_recpt_editor_set_field_size_group (ModestRecptEditor *recpt_editor, GtkSizeGroup *size_group)
 388 {
 389         ModestRecptEditorPrivate *priv;
 390
 391         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 392         g_return_if_fail (GTK_IS_SIZE_GROUP (size_group));
 393         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 394
 395         gtk_size_group_add_widget (size_group, priv->scrolled_window);
 396 }
 397
 398 GtkTextBuffer *
 399 modest_recpt_editor_get_buffer (ModestRecptEditor *recpt_editor)
 400 {
 401         ModestRecptEditorPrivate *priv;
 402
 403         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), NULL);
 404         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 405
 406         return gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 407 }
 408
 409 static void
 410 modest_recpt_editor_on_abook_clicked (GtkButton *button, ModestRecptEditor *editor)
 411 {
 412         g_return_if_fail (MODEST_IS_RECPT_EDITOR (editor));
 413
 414         g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
 415 }
 416
 417 static gboolean
 418 modest_recpt_editor_on_button_release_event (GtkWidget *widget,
 419                                              GdkEventButton *event,
 420                                              ModestRecptEditor *recpt_editor)
 421 {
 422         ModestRecptEditorPrivate *priv;
 423         GtkTextIter location, start, end;
 424         GtkTextMark *mark;
 425         GtkTextBuffer *buffer;
 426         GtkTextTag *tag;
 427         gboolean selection_changed = FALSE;
 428
 429         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 430
 431         buffer = modest_recpt_editor_get_buffer (recpt_editor);
 432         mark = gtk_text_buffer_get_insert (buffer);
 433         gtk_text_buffer_get_iter_at_mark (buffer, &location, mark);
 434
 435         gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
 436
 437         tag = iter_has_recipient (&start);
 438         if (tag != NULL)
 439                 if (!gtk_text_iter_begins_tag (&start, tag)) {
 440                         gtk_text_iter_backward_to_tag_toggle (&start, tag);
 441                         selection_changed = TRUE;
 442                 }
 443
 444         tag = iter_has_recipient (&end);
 445         if (tag != NULL)
 446                 if (!gtk_text_iter_ends_tag (&end, tag)) {
 447                         gtk_text_iter_forward_to_tag_toggle (&end, tag);
 448                         selection_changed = TRUE;
 449                 }
 450
 451         if (selection_changed) {
 452                 gtk_text_buffer_select_range (buffer, &start, &end);
 453         } else {
 454                 GTK_TEXT_VIEW (priv->text_view)->pending_place_cursor_button = 0;
 455         }
 456
 457         return FALSE;
 458 }
 459
 460 static void
 461 modest_recpt_editor_on_focus_in (GtkTextView *text_view,
 462                                  GdkEventFocus *event,
 463                                  ModestRecptEditor *editor)
 464 {
 465         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 466         gtk_text_view_place_cursor_onscreen (GTK_TEXT_VIEW (priv->text_view));
 467 }
 468
 469 static gboolean
 470 is_valid_insert (const gchar *text, gint len)
 471 {
 472         gunichar c;
 473         gunichar next_c;
 474         gint i= 0;
 475         gboolean quoted = FALSE;
 476         const gchar *current, *next_current;
 477         if (text == NULL)
 478                 return TRUE;
 479         current = text;
 480
 481         while (((len == -1)||(i < len)) && (*current != '\0')) {
 482                 c = g_utf8_get_char (current);
 483                 next_current = g_utf8_next_char (current);
 484                 if (next_current && *next_current != '\0')
 485                         next_c = g_utf8_get_char (g_utf8_next_char (current));
 486                 else
 487                         next_c = 0;
 488                 if (!quoted && ((c == g_utf8_get_char(",") || c == g_utf8_get_char (";")))) {
 489                         if ((next_c != 0) && (next_c != g_utf8_get_char ("\n")))
 490                                 return FALSE;
 491                         else {
 492                           current = g_utf8_next_char (next_current);
 493                           continue;
 494                         }
 495                 }
 496                 if (c == 0x2022 || c == 0xfffc ||
 497                     c == g_utf8_get_char ("\n") ||
 498                     c == g_utf8_get_char ("\t"))
 499                         return FALSE;
 500                 if (c == g_utf8_get_char ("\""))
 501                         quoted = !quoted;
 502                 current = g_utf8_next_char (current);
 503                 i = current - text;
 504         }
 505         return TRUE;
 506 }
 507
 508 static gchar *
 509 create_valid_text (const gchar *text, gint len)
 510 {
 511         gunichar c;
 512         gunichar next_c;
 513         gint i= 0;
 514         GString *str;
 515         gboolean quoted = FALSE;
 516         const gchar *current, *next_current;
 517
 518         if (text == NULL)
 519                 return NULL;
 520
 521         str = g_string_new ("");
 522         current = text;
 523
 524         while (((len == -1)||(i < len)) && (*current != '\0')) {
 525                 c = g_utf8_get_char (current);
 526                 next_current = g_utf8_next_char (current);
 527                 if (next_current && *next_current != '\0')
 528                         next_c = g_utf8_get_char (g_utf8_next_char (current));
 529                 else
 530                         next_c = 0;
 531                 if (c != 0x2022 && c != 0xfffc &&
 532                     c != g_utf8_get_char ("\n") &&
 533                     c != g_utf8_get_char ("\t"))
 534                         str = g_string_append_unichar (str, c);
 535                 if (!quoted && ((c == g_utf8_get_char(",") || c == g_utf8_get_char (";")))) {
 536                         if ((next_c != 0) && (next_c != g_utf8_get_char ("\n")))
 537                                 str = g_string_append_c (str, '\n');
 538                 }
 539                 if (c == g_utf8_get_char ("\""))
 540                         quoted = !quoted;
 541                 current = g_utf8_next_char (current);
 542                 i = current - text;
 543         }
 544         return g_string_free (str, FALSE);
 545 }
 546
 547 static void
 548 modest_recpt_editor_on_insert_text (GtkTextBuffer *buffer,
 549                                     GtkTextIter *location,
 550                                     gchar *text,
 551                                     gint len,
 552                                     ModestRecptEditor *editor)
 553 {
 554         GtkTextIter prev;
 555         gunichar prev_char;
 556         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 557
 558         if (len > 1024)
 559                 len = 1024;
 560
 561         if (!is_valid_insert (text, len)) {
 562                 gchar *new_text = create_valid_text (text, len);
 563                 g_signal_stop_emission_by_name (G_OBJECT (buffer), "insert-text");
 564                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text,
 565                                                  editor);
 566                 gtk_text_buffer_insert (buffer, location, new_text, -1);
 567                 g_signal_handlers_unblock_by_func (buffer,
 568                                                    modest_recpt_editor_on_insert_text,
 569                                                    editor);
 570                 g_free (new_text);
 571                 return;
 572         }
 573
 574         if (iter_has_recipient (location)) {
 575                 gtk_text_buffer_get_end_iter (buffer, location);
 576                 gtk_text_buffer_place_cursor (buffer, location);
 577         }
 578
 579         if (gtk_text_iter_is_start (location))
 580                 return;
 581
 582         if (gtk_text_iter_is_end (location)) {
 583                 prev = *location;
 584                 if (!gtk_text_iter_backward_char (&prev))
 585                         return;
 586                 prev_char = gtk_text_iter_get_char (&prev);
 587                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 588                 if ((prev_char == ';'||prev_char == ',')&&(!quote_opened(location))) {
 589                         GtkTextMark *insert;
 590                         gtk_text_buffer_insert (buffer, location, "\n",-1);
 591                         insert = gtk_text_buffer_get_insert (buffer);
 592                         gtk_text_view_scroll_to_iter (GTK_TEXT_VIEW (priv->text_view), location, 0.0,TRUE, 0.0, 1.0);
 593                 }
 594                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 595
 596         }
 597
 598 }
 599
 600 static GtkTextTag *
 601 iter_has_recipient (GtkTextIter *iter)
 602 {
 603         GSList *tags, *node;
 604         GtkTextTag *result = NULL;
 605
 606         tags = gtk_text_iter_get_tags (iter);
 607
 608         for (node = tags; node != NULL; node = g_slist_next (node)) {
 609                 GtkTextTag *tag = GTK_TEXT_TAG (node->data);
 610
 611                 if (g_object_get_data (G_OBJECT (tag), "recipient-tag-id")) {
 612                         result = tag;
 613                         break;
 614                 }
 615         }
 616         g_slist_free (tags);
 617         return result;
 618 }
 619
 620 static GtkTextTag *
 621 prev_iter_has_recipient (GtkTextIter *iter)
 622 {
 623         GtkTextIter prev;
 624
 625         prev = *iter;
 626         gtk_text_iter_backward_char (&prev);
 627         return iter_has_recipient (&prev);
 628 }
 629
 630 /* static GtkTextTag * */
 631 /* next_iter_has_recipient (GtkTextIter *iter) */
 632 /* { */
 633 /*      GtkTextIter next; */
 634
 635 /*      next = *iter; */
 636 /*      return iter_has_recipient (&next); */
 637 /* } */
 638
 639 static gunichar
 640 iter_previous_char (GtkTextIter *iter)
 641 {
 642         GtkTextIter prev;
 643
 644         prev = *iter;
 645         gtk_text_iter_backward_char (&prev);
 646         return gtk_text_iter_get_char (&prev);
 647 }
 648
 649 /* static gunichar  */
 650 /* iter_next_char (GtkTextIter *iter) */
 651 /* { */
 652 /*      GtkTextIter next; */
 653
 654 /*      next = *iter; */
 655 /*      gtk_text_iter_forward_char (&next); */
 656 /*      return gtk_text_iter_get_char (&next); */
 657 /* } */
 658
 659 static void
 660 select_tag_of_iter (GtkTextIter *iter, GtkTextTag *tag)
 661 {
 662         GtkTextIter start, end;
 663
 664         start = *iter;
 665         if (!gtk_text_iter_begins_tag (&start, tag))
 666                 gtk_text_iter_backward_to_tag_toggle (&start, tag);
 667         end = *iter;
 668         if (!gtk_text_iter_ends_tag (&end, tag))
 669                 gtk_text_iter_forward_to_tag_toggle (&end, tag);
 670         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &start, &end);
 671 }
 672
 673 static gboolean
 674 quote_opened (GtkTextIter *iter)
 675 {
 676         GtkTextIter start;
 677         GtkTextBuffer *buffer;
 678         gboolean opened = FALSE;
 679
 680         buffer = gtk_text_iter_get_buffer (iter);
 681         gtk_text_buffer_get_start_iter (buffer, &start);
 682
 683         while (!gtk_text_iter_equal (&start, iter)) {
 684                 gunichar current_char = gtk_text_iter_get_char (&start);
 685                 if (current_char == '"')
 686                         opened = !opened;
 687                 else if (current_char == '\\')
 688                         gtk_text_iter_forward_char (&start);
 689                 if (!gtk_text_iter_equal (&start, iter))
 690                         gtk_text_iter_forward_char (&start);
 691
 692         }
 693         return opened;
 694
 695 }
 696
 697
 698 static gboolean
 699 modest_recpt_editor_on_key_press_event (GtkTextView *text_view,
 700                                           GdkEventKey *key,
 701                                           ModestRecptEditor *editor)
 702 {
 703         GtkTextMark *insert;
 704         GtkTextMark *selection;
 705         GtkTextBuffer * buffer;
 706         GtkTextIter location, selection_loc;
 707         GtkTextTag *tag;
 708
 709         buffer = gtk_text_view_get_buffer (text_view);
 710         insert = gtk_text_buffer_get_insert (buffer);
 711         selection = gtk_text_buffer_get_selection_bound (buffer);
 712
 713         /* cases to cover:
 714          *    * cursor is on resolved recipient:
 715          *        - right should go to first character after the recipient (usually ; or ,)
 716          *        - left should fo to the first character before the recipient
 717          *        - return should run check names on the recipient.
 718          *    * cursor is just after a recipient:
 719          *        - right should go to the next character. If it's a recipient, should select
 720          *          it
 721          *        - left should go to the previous character. If it's a recipient, should go
 722          *          to the first character of the recipient, and select it.
 723          *    * cursor is on arbitrary text:
 724          *        - return should add a ; and go to the next line
 725          *        - left or right standard ones.
 726          *    * cursor is after a \n:
 727          *        - left should go to the character before the \n (as if \n was not a character)
 728          *    * cursor is before a \n:
 729          *        - right should go to the character after the \n
 730          */
 731
 732         gtk_text_buffer_get_iter_at_mark (buffer, &location, insert);
 733         gtk_text_buffer_get_iter_at_mark (buffer, &selection_loc, selection);
 734
 735         switch (key->keyval) {
 736         case GDK_Left:
 737         case GDK_KP_Left:
 738         {
 739                 gboolean cursor_ready = FALSE;
 740                 while (!cursor_ready) {
 741                         if (iter_previous_char (&location) == '\n') {
 742                                 gtk_text_iter_backward_char (&location);
 743                         } else {
 744                                 cursor_ready = TRUE;
 745                         }
 746                 }
 747                 tag = iter_has_recipient (&location);
 748                 if ((tag != NULL)&& (gtk_text_iter_is_start (&location) || !(gtk_text_iter_begins_tag (&location, tag)))) {
 749                         select_tag_of_iter (&location, tag);
 750                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 751                         return TRUE;
 752                 }
 753                 gtk_text_iter_backward_char (&location);
 754                 tag = iter_has_recipient (&location);
 755                 if (tag != NULL)
 756                         select_tag_of_iter (&location, tag);
 757                 else {
 758                         gtk_text_buffer_place_cursor (buffer, &location);
 759                 }
 760                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 761
 762                 return TRUE;
 763         }
 764         break;
 765         case GDK_Right:
 766         case GDK_KP_Right:
 767         {
 768                 gboolean cursor_moved = FALSE;
 769
 770                 tag = iter_has_recipient (&location);
 771                 if ((tag != NULL)&&(!gtk_text_iter_ends_tag (&location, tag))) {
 772                         gtk_text_iter_forward_to_tag_toggle (&location, tag);
 773                         while (gtk_text_iter_get_char (&location) == '\n')
 774                                 gtk_text_iter_forward_char (&location);
 775                         gtk_text_buffer_place_cursor (buffer, &location);
 776                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 777                         return TRUE;
 778                 }
 779
 780                 while (gtk_text_iter_get_char (&location) == '\n') {
 781                         gtk_text_iter_forward_char (&location);
 782                         cursor_moved = TRUE;
 783                 }
 784                 if (!cursor_moved)
 785                         gtk_text_iter_forward_char (&location);
 786                 while (gtk_text_iter_get_char (&location) == '\n') {
 787                         gtk_text_iter_forward_char (&location);
 788                         cursor_moved = TRUE;
 789                 }
 790
 791                 tag = iter_has_recipient (&location);
 792                 if (tag != NULL)
 793                         select_tag_of_iter (&location, tag);
 794                 else
 795                         gtk_text_buffer_place_cursor (buffer, &location);
 796                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 797                 return TRUE;
 798         }
 799         break;
 800         case GDK_Return:
 801         case GDK_KP_Enter:
 802         {
 803                 gint insert_offset, selection_offset;
 804                 insert_offset = gtk_text_iter_get_offset (&location);
 805                 selection_offset = gtk_text_iter_get_offset (&selection_loc);
 806                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 807                 if (selection_offset > insert_offset)
 808                         location = selection_loc;
 809                 tag = iter_has_recipient (&location);
 810                 if (tag != NULL) {
 811                         gtk_text_buffer_get_end_iter (buffer, &location);
 812                         gtk_text_buffer_place_cursor (buffer, &location);
 813                         if ((iter_previous_char (&location) != ';')&&(iter_previous_char (&location) != ','))
 814                                 gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
 815                         gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
 816                 } else {
 817                         gunichar prev_char = iter_previous_char (&location);
 818                         if ((gtk_text_iter_is_start (&location))||(prev_char == '\n')
 819                             ||(prev_char == ';')||(prev_char == ','))
 820                                 g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
 821                         else {
 822                                 if ((prev_char != ';') && (prev_char != ','))
 823                                         gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
 824                                 gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
 825                         }
 826                 }
 827                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 828                 return TRUE;
 829         }
 830         break;
 831         case GDK_BackSpace:
 832         {
 833                 #if GTK_CHECK_VERSION(2, 10, 0) /* gtk_text_buffer_get_has_selection is only available in GTK+ 2.10 */
 834                 if (gtk_text_buffer_get_has_selection (buffer)) {
 835                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 836                         return TRUE;
 837                 }
 838                 #else
 839                 if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
 840                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 841                         return TRUE;
 842                 }
 843                 #endif
 844
 845                 tag = prev_iter_has_recipient (&location);
 846                 if (tag != NULL) {
 847                         GtkTextIter iter_in_tag;
 848                         iter_in_tag = location;
 849                         gtk_text_iter_backward_char (&iter_in_tag);
 850                         select_tag_of_iter (&iter_in_tag, tag);
 851                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 852                         return TRUE;
 853                 }
 854                 return FALSE;
 855         }
 856         break;
 857         default:
 858                 return FALSE;
 859         }
 860 }
 861
 862 static void
 863 modest_recpt_editor_move_cursor_to_end (ModestRecptEditor *editor)
 864 {
 865         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 866         GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 867         GtkTextIter start, end;
 868
 869         gtk_text_buffer_get_end_iter (buffer, &start);
 870         end = start;
 871         gtk_text_buffer_select_range (buffer, &start, &end);
 872
 873
 874 }
 875
 876 void
 877 modest_recpt_editor_grab_focus (ModestRecptEditor *recpt_editor)
 878 {
 879         ModestRecptEditorPrivate *priv;
 880
 881         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 882         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 883
 884         gtk_widget_grab_focus (priv->text_view);
 885 }
 886
 887 gboolean
 888 modest_recpt_editor_has_focus (ModestRecptEditor *recpt_editor)
 889 {
 890         ModestRecptEditorPrivate *priv;
 891
 892         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), FALSE);
 893         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 894
 895         return gtk_widget_is_focus (priv->text_view);
 896 }
 897
 898 static void
 899 modest_recpt_editor_finalize (GObject *object)
 900 {
 901         ModestRecptEditorPrivate *priv;
 902         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (object);
 903
 904         if (priv->recipients) {
 905                 g_free (priv->recipients);
 906                 priv->recipients = NULL;
 907         }
 908
 909         (*parent_class->finalize) (object);
 910
 911         return;
 912 }
 913
 914 static void
 915 modest_recpt_editor_class_init (ModestRecptEditorClass *klass)
 916 {
 917         GObjectClass *object_class;
 918         GtkWidgetClass *widget_class;
 919
 920         parent_class = g_type_class_peek_parent (klass);
 921         object_class = (GObjectClass*) klass;
 922         widget_class = GTK_WIDGET_CLASS (klass);
 923
 924         object_class->finalize = modest_recpt_editor_finalize;
 925
 926         g_type_class_add_private (object_class, sizeof (ModestRecptEditorPrivate));
 927
 928         signals[OPEN_ADDRESSBOOK_SIGNAL] =
 929                 g_signal_new ("open-addressbook",
 930                               G_TYPE_FROM_CLASS (object_class),
 931                               G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
 932                               G_STRUCT_OFFSET (ModestRecptEditorClass, open_addressbook),
 933                               NULL, NULL,
 934                               g_cclosure_marshal_VOID__VOID,
 935                               G_TYPE_NONE, 0);
 936
 937         return;
 938 }
 939
 940 GType
 941 modest_recpt_editor_get_type (void)
 942 {
 943         static GType type = 0;
 944
 945         if (G_UNLIKELY(type == 0))
 946         {
 947                 static const GTypeInfo info =
 948                 {
 949                   sizeof (ModestRecptEditorClass),
 950                   NULL,   /* base_init */
 951                   NULL,   /* base_finalize */
 952                   (GClassInitFunc) modest_recpt_editor_class_init,   /* class_init */
 953                   NULL,   /* class_finalize */
 954                   NULL,   /* class_data */
 955                   sizeof (ModestRecptEditor),
 956                   0,      /* n_preallocs */
 957                   modest_recpt_editor_instance_init    /* instance_init */
 958                 };
 959
 960                 type = g_type_register_static (GTK_TYPE_HBOX,
 961                         "ModestRecptEditor",
 962                         &info, 0);
 963
 964         }
 965
 966         return type;
 967 }