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 "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 #ifdef MODEST_TOOLKIT_HILDON2
 139         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 140 #else
 141         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 142 #endif
 143
 144         valid_recipients = create_valid_text (recipients, -1);
 145         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 146         gtk_text_buffer_set_text (buffer, valid_recipients, -1);
 147         g_free (valid_recipients);
 148         if (GTK_WIDGET_REALIZED (recpt_editor))
 149                 gtk_widget_queue_resize (GTK_WIDGET (recpt_editor));
 150         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 151
 152 }
 153
 154 void
 155 modest_recpt_editor_add_recipients (ModestRecptEditor *recpt_editor, const gchar *recipients)
 156 {
 157         ModestRecptEditorPrivate *priv;
 158         GtkTextBuffer *buffer = NULL;
 159         GtkTextIter iter;
 160         gchar *string_to_add;
 161
 162         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 163         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 164
 165         if (recipients == NULL)
 166                 return;
 167
 168 #ifdef MODEST_TOOLKIT_HILDON2
 169         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 170 #else
 171         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 172 #endif
 173
 174         if (gtk_text_buffer_get_char_count (buffer) > 0) {
 175                 string_to_add = g_strconcat (";\n", recipients, NULL);
 176         } else {
 177                 string_to_add = g_strdup (recipients);
 178         }
 179
 180         gtk_text_buffer_get_end_iter (buffer, &iter);
 181
 182         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 183
 184         gtk_text_buffer_insert (buffer, &iter, string_to_add, -1);
 185
 186         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 187
 188         if (GTK_WIDGET_REALIZED (recpt_editor))
 189                 gtk_widget_queue_resize (GTK_WIDGET (recpt_editor));
 190
 191         g_free (string_to_add);
 192 }
 193
 194 void
 195 modest_recpt_editor_add_resolved_recipient (ModestRecptEditor *recpt_editor, GSList *email_list, const gchar * recipient_id)
 196 {
 197         ModestRecptEditorPrivate *priv;
 198         GtkTextBuffer *buffer = NULL;
 199         GtkTextIter start, end, iter;
 200         GtkTextTag *tag = NULL;
 201         GSList *node;
 202         gboolean is_first_recipient = TRUE;
 203
 204         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 205         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 206
 207 #ifdef MODEST_TOOLKIT_HILDON2
 208         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 209 #else
 210         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 211 #endif
 212
 213         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 214         gtk_text_buffer_get_bounds (buffer, &start, &end);
 215         if (gtk_text_buffer_get_char_count (buffer) > 0) {
 216                 gchar * buffer_contents;
 217
 218                 gtk_text_buffer_get_bounds (buffer, &start, &end);
 219                 buffer_contents = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 220                 if (!g_str_has_suffix (buffer_contents, "\n")) {
 221                         if (g_str_has_suffix (buffer_contents, ";")||(g_str_has_suffix (buffer_contents, ",")))
 222                                 gtk_text_buffer_insert (buffer, &end, "\n", -1);
 223                         else
 224                                 gtk_text_buffer_insert (buffer, &end, ";\n", -1);
 225                 }
 226                 g_free (buffer_contents);
 227         }
 228
 229         gtk_text_buffer_get_end_iter (buffer, &iter);
 230
 231         tag = gtk_text_buffer_create_tag (buffer, NULL,
 232                                           "underline", PANGO_UNDERLINE_SINGLE,
 233                                           "wrap-mode", GTK_WRAP_NONE,
 234                                           "editable", TRUE, NULL);
 235
 236         g_object_set_data (G_OBJECT (tag), "recipient-tag-id", GINT_TO_POINTER (RECIPIENT_TAG_ID));
 237         g_object_set_data_full (G_OBJECT (tag), "recipient-id", g_strdup (recipient_id), (GDestroyNotify) g_free);
 238
 239         for (node = email_list; node != NULL; node = g_slist_next (node)) {
 240                 gchar *recipient = (gchar *) node->data;
 241
 242                 if ((recipient) && (strlen (recipient) != 0)) {
 243
 244                         if (!is_first_recipient)
 245                         gtk_text_buffer_insert (buffer, &iter, "\n", -1);
 246
 247                         gtk_text_buffer_insert_with_tags (buffer, &iter, recipient, -1, tag, NULL);
 248                         gtk_text_buffer_insert (buffer, &iter, ";", -1);
 249                         is_first_recipient = FALSE;
 250                 }
 251         }
 252         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 253
 254         modest_recpt_editor_move_cursor_to_end (recpt_editor);
 255
 256 }
 257
 258 void
 259 modest_recpt_editor_replace_with_resolved_recipient (ModestRecptEditor *recpt_editor,
 260                                                      GtkTextIter *start, GtkTextIter *end,
 261                                                      GSList *email_list, const gchar * recipient_id)
 262 {
 263         ModestRecptEditorPrivate *priv;
 264         GtkTextBuffer *buffer;
 265         GtkTextTag *tag;
 266         GSList *node;
 267         gboolean is_first_recipient = TRUE;
 268
 269         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 270         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 271
 272 #ifdef MODEST_TOOLKIT_HILDON2
 273         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 274 #else
 275         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 276 #endif
 277         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 278
 279         gtk_text_buffer_delete (buffer, start, end);
 280
 281         tag = gtk_text_buffer_create_tag (buffer, NULL,
 282                                           "underline", PANGO_UNDERLINE_SINGLE,
 283                                           "wrap-mode", GTK_WRAP_NONE,
 284                                           "editable", TRUE, NULL);
 285
 286         g_object_set_data (G_OBJECT (tag), "recipient-tag-id", GINT_TO_POINTER (RECIPIENT_TAG_ID));
 287         g_object_set_data_full (G_OBJECT (tag), "recipient-id", g_strdup (recipient_id), (GDestroyNotify) g_free);
 288
 289         for (node = email_list; node != NULL; node = g_slist_next (node)) {
 290                 gchar *recipient = (gchar *) node->data;
 291
 292                 if ((recipient) && (strlen (recipient) != 0)) {
 293
 294                         if (!is_first_recipient)
 295                         gtk_text_buffer_insert (buffer, start, "\n", -1);
 296
 297                         gtk_text_buffer_insert_with_tags (buffer, start, recipient, -1, tag, NULL);
 298
 299                         if (node->next != NULL)
 300                                 gtk_text_buffer_insert (buffer, start, ";", -1);
 301                         is_first_recipient = FALSE;
 302                 }
 303         }
 304         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 305
 306 }
 307
 308
 309 const gchar *
 310 modest_recpt_editor_get_recipients (ModestRecptEditor *recpt_editor)
 311 {
 312         ModestRecptEditorPrivate *priv;
 313         GtkTextBuffer *buffer = NULL;
 314         GtkTextIter start, end;
 315         gchar *c;
 316
 317         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), NULL);
 318         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 319
 320         if (priv->recipients != NULL) {
 321                 g_free (priv->recipients);
 322                 priv->recipients = NULL;
 323         }
 324
 325 #ifdef MODEST_TOOKIT_HILDON2
 326         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 327 #else
 328         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 329 #endif
 330
 331         gtk_text_buffer_get_start_iter (buffer, &start);
 332         gtk_text_buffer_get_end_iter (buffer, &end);
 333
 334         priv->recipients = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 335         for (c = priv->recipients; *c != '\0'; c = g_utf8_next_char (c)) {
 336                 if (*c == '\n') {
 337                         *c = ' ';
 338                 }
 339         }
 340
 341         return priv->recipients;
 342
 343 }
 344
 345 static void
 346 modest_recpt_editor_instance_init (GTypeInstance *instance, gpointer g_class)
 347 {
 348         ModestRecptEditorPrivate *priv;
 349         GtkWidget *abook_icon;
 350         GtkTextBuffer *buffer;
 351
 352         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (instance);
 353
 354         priv->abook_button = gtk_button_new ();
 355         gtk_button_set_relief (GTK_BUTTON (priv->abook_button), GTK_RELIEF_NONE);
 356         gtk_button_set_focus_on_click (GTK_BUTTON (priv->abook_button), FALSE);
 357         GTK_WIDGET_UNSET_FLAGS (priv->abook_button, GTK_CAN_FOCUS);
 358         gtk_button_set_alignment (GTK_BUTTON (priv->abook_button), 1.0, 1.0);
 359 #ifdef MODEST_TOOLKIT_HILDON2
 360         abook_icon = gtk_image_new_from_icon_name ("general_contacts", HILDON_ICON_SIZE_FINGER);
 361 #else
 362         abook_icon = gtk_image_new_from_icon_name ("qgn_list_addressbook", GTK_ICON_SIZE_BUTTON);
 363 #endif
 364         gtk_container_add (GTK_CONTAINER (priv->abook_button), abook_icon);
 365
 366 #ifdef MODEST_TOOLKIT_HILDON2
 367         priv->text_view = hildon_text_view_new ();
 368 #else
 369         priv->text_view = gtk_text_view_new ();
 370 #endif
 371         /* Auto-capitalization is the default, so let's turn it off: */
 372 #ifdef MAEMO_CHANGES
 373         hildon_gtk_text_view_set_input_mode (GTK_TEXT_VIEW (priv->text_view),
 374                 HILDON_GTK_INPUT_MODE_FULL);
 375 #endif
 376
 377         priv->recipients = NULL;
 378
 379 #ifdef MODEST_TOOLKIT_HILDON2
 380         priv->scrolled_window = NULL;
 381         gtk_box_pack_start (GTK_BOX (instance), priv->text_view, TRUE, TRUE, 0);
 382 #else
 383         priv->scrolled_window = modest_scroll_text_new (GTK_TEXT_VIEW (priv->text_view), 1024);
 384         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_POLICY_NEVER,
 385                                         GTK_POLICY_AUTOMATIC);
 386         gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_SHADOW_IN);
 387 /*      gtk_container_add (GTK_CONTAINER (priv->scrolled_window), priv->text_view); */
 388
 389         gtk_box_pack_start (GTK_BOX (instance), priv->scrolled_window, TRUE, TRUE, 0);
 390 /*      gtk_box_pack_start (GTK_BOX (instance), priv->text_view, TRUE, TRUE, 0); */
 391 #endif
 392         gtk_box_pack_end (GTK_BOX (instance), priv->abook_button, FALSE, FALSE, 0);
 393
 394         gtk_text_view_set_accepts_tab (GTK_TEXT_VIEW (priv->text_view), FALSE);
 395         gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (priv->text_view), TRUE);
 396         gtk_text_view_set_editable (GTK_TEXT_VIEW (priv->text_view), TRUE);
 397
 398         gtk_text_view_set_justification (GTK_TEXT_VIEW (priv->text_view), GTK_JUSTIFY_LEFT);
 399         gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (priv->text_view), GTK_WRAP_CHAR);
 400
 401         gtk_widget_set_size_request (priv->text_view, 75, -1);
 402
 403 #ifdef MODEST_TOOLKIT_HILDON2
 404         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 405 #else
 406         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 407 #endif
 408         g_signal_connect (G_OBJECT (priv->abook_button), "clicked", G_CALLBACK (modest_recpt_editor_on_abook_clicked), instance);
 409         g_signal_connect (G_OBJECT (priv->text_view), "button-release-event", G_CALLBACK (modest_recpt_editor_on_button_release_event), instance);
 410         g_signal_connect (G_OBJECT (priv->text_view), "key-press-event", G_CALLBACK (modest_recpt_editor_on_key_press_event), instance);
 411         g_signal_connect (G_OBJECT (priv->text_view), "focus-in-event", G_CALLBACK (modest_recpt_editor_on_focus_in), instance);
 412         g_signal_connect (G_OBJECT (buffer), "insert-text", G_CALLBACK (modest_recpt_editor_on_insert_text), instance);
 413
 414 /*      gtk_container_set_focus_child (GTK_CONTAINER (instance), priv->text_view); */
 415
 416         return;
 417 }
 418
 419 void
 420 modest_recpt_editor_set_field_size_group (ModestRecptEditor *recpt_editor, GtkSizeGroup *size_group)
 421 {
 422         ModestRecptEditorPrivate *priv;
 423
 424         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 425         g_return_if_fail (GTK_IS_SIZE_GROUP (size_group));
 426         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 427
 428 #ifdef MODEST_TOOLKIT_HILDON2
 429         gtk_size_group_add_widget (size_group, priv->text_view);
 430 #else
 431         gtk_size_group_add_widget (size_group, priv->scrolled_window);
 432 #endif
 433 }
 434
 435 GtkTextBuffer *
 436 modest_recpt_editor_get_buffer (ModestRecptEditor *recpt_editor)
 437 {
 438         ModestRecptEditorPrivate *priv;
 439
 440         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), NULL);
 441         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 442
 443 #ifdef MODEST_TOOLKIT_HILDON2
 444         return hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 445 #else
 446         return gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 447 #endif
 448 }
 449
 450 static void
 451 modest_recpt_editor_on_abook_clicked (GtkButton *button, ModestRecptEditor *editor)
 452 {
 453         g_return_if_fail (MODEST_IS_RECPT_EDITOR (editor));
 454
 455         g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
 456 }
 457
 458 static gboolean
 459 modest_recpt_editor_on_button_release_event (GtkWidget *widget,
 460                                              GdkEventButton *event,
 461                                              ModestRecptEditor *recpt_editor)
 462 {
 463         ModestRecptEditorPrivate *priv;
 464         GtkTextIter location, start, end;
 465         GtkTextMark *mark;
 466         GtkTextBuffer *buffer;
 467         GtkTextTag *tag;
 468         gboolean selection_changed = FALSE;
 469
 470         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 471
 472         buffer = modest_recpt_editor_get_buffer (recpt_editor);
 473         mark = gtk_text_buffer_get_insert (buffer);
 474         gtk_text_buffer_get_iter_at_mark (buffer, &location, mark);
 475
 476         gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
 477
 478         tag = iter_has_recipient (&start);
 479         if (tag != NULL)
 480                 if (!gtk_text_iter_begins_tag (&start, tag)) {
 481                         gtk_text_iter_backward_to_tag_toggle (&start, tag);
 482                         selection_changed = TRUE;
 483                 }
 484
 485         tag = iter_has_recipient (&end);
 486         if (tag != NULL)
 487                 if (!gtk_text_iter_ends_tag (&end, tag)) {
 488                         gtk_text_iter_forward_to_tag_toggle (&end, tag);
 489                         selection_changed = TRUE;
 490                 }
 491
 492         if (selection_changed) {
 493                 gtk_text_buffer_select_range (buffer, &start, &end);
 494         } else {
 495                 GTK_TEXT_VIEW (priv->text_view)->pending_place_cursor_button = 0;
 496         }
 497
 498         return FALSE;
 499 }
 500
 501 static void
 502 modest_recpt_editor_on_focus_in (GtkTextView *text_view,
 503                                  GdkEventFocus *event,
 504                                  ModestRecptEditor *editor)
 505 {
 506         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 507         gtk_text_view_place_cursor_onscreen (GTK_TEXT_VIEW (priv->text_view));
 508 }
 509
 510 static gboolean
 511 is_valid_insert (const gchar *text, gint len)
 512 {
 513         gunichar c;
 514         gunichar next_c;
 515         gint i= 0;
 516         gboolean quoted = FALSE;
 517         const gchar *current, *next_current;
 518         if (text == NULL)
 519                 return TRUE;
 520         current = text;
 521
 522         while (((len == -1)||(i < len)) && (*current != '\0')) {
 523                 c = g_utf8_get_char (current);
 524                 next_current = g_utf8_next_char (current);
 525                 if (next_current && *next_current != '\0')
 526                         next_c = g_utf8_get_char (g_utf8_next_char (current));
 527                 else
 528                         next_c = 0;
 529                 if (!quoted && ((c == g_utf8_get_char(",") || c == g_utf8_get_char (";")))) {
 530                         if ((next_c != 0) && (next_c != g_utf8_get_char ("\n")))
 531                                 return FALSE;
 532                         else {
 533                           current = g_utf8_next_char (next_current);
 534                           continue;
 535                         }
 536                 }
 537                 if (c == 0x2022 || c == 0xfffc ||
 538                     c == g_utf8_get_char ("\n") ||
 539                     c == g_utf8_get_char ("\t"))
 540                         return FALSE;
 541                 if (c == g_utf8_get_char ("\""))
 542                         quoted = !quoted;
 543                 current = g_utf8_next_char (current);
 544                 i = current - text;
 545         }
 546         return TRUE;
 547 }
 548
 549 static gchar *
 550 create_valid_text (const gchar *text, gint len)
 551 {
 552         gunichar c;
 553         gunichar next_c;
 554         gint i= 0;
 555         GString *str;
 556         gboolean quoted = FALSE;
 557         const gchar *current, *next_current;
 558
 559         if (text == NULL)
 560                 return NULL;
 561
 562         str = g_string_new ("");
 563         current = text;
 564
 565         while (((len == -1)||(i < len)) && (*current != '\0')) {
 566                 c = g_utf8_get_char (current);
 567                 next_current = g_utf8_next_char (current);
 568                 if (next_current && *next_current != '\0')
 569                         next_c = g_utf8_get_char (g_utf8_next_char (current));
 570                 else
 571                         next_c = 0;
 572                 if (c != 0x2022 && c != 0xfffc &&
 573                     c != g_utf8_get_char ("\n") &&
 574                     c != g_utf8_get_char ("\t"))
 575                         str = g_string_append_unichar (str, c);
 576                 if (!quoted && ((c == g_utf8_get_char(",") || c == g_utf8_get_char (";")))) {
 577                         if ((next_c != 0) && (next_c != g_utf8_get_char ("\n")))
 578                                 str = g_string_append_c (str, '\n');
 579                 }
 580                 if (c == g_utf8_get_char ("\""))
 581                         quoted = !quoted;
 582                 current = g_utf8_next_char (current);
 583                 i = current - text;
 584         }
 585         return g_string_free (str, FALSE);
 586 }
 587
 588 static void
 589 modest_recpt_editor_on_insert_text (GtkTextBuffer *buffer,
 590                                     GtkTextIter *location,
 591                                     gchar *text,
 592                                     gint len,
 593                                     ModestRecptEditor *editor)
 594 {
 595         GtkTextIter prev;
 596         gunichar prev_char;
 597         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 598
 599         if (len > 1024)
 600                 len = 1024;
 601
 602         if (!is_valid_insert (text, len)) {
 603                 gchar *new_text = create_valid_text (text, len);
 604                 g_signal_stop_emission_by_name (G_OBJECT (buffer), "insert-text");
 605                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text,
 606                                                  editor);
 607                 gtk_text_buffer_insert (buffer, location, new_text, -1);
 608                 g_signal_handlers_unblock_by_func (buffer,
 609                                                    modest_recpt_editor_on_insert_text,
 610                                                    editor);
 611                 g_free (new_text);
 612                 return;
 613         }
 614
 615         if (iter_has_recipient (location)) {
 616                 gtk_text_buffer_get_end_iter (buffer, location);
 617                 gtk_text_buffer_place_cursor (buffer, location);
 618         }
 619
 620         if (gtk_text_iter_is_start (location))
 621                 return;
 622
 623         if (gtk_text_iter_is_end (location)) {
 624                 prev = *location;
 625                 if (!gtk_text_iter_backward_char (&prev))
 626                         return;
 627                 prev_char = gtk_text_iter_get_char (&prev);
 628                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 629                 if ((prev_char == ';'||prev_char == ',')&&(!quote_opened(location))) {
 630                         GtkTextMark *insert;
 631                         gtk_text_buffer_insert (buffer, location, "\n",-1);
 632                         insert = gtk_text_buffer_get_insert (buffer);
 633                         gtk_text_view_scroll_to_iter (GTK_TEXT_VIEW (priv->text_view), location, 0.0,TRUE, 0.0, 1.0);
 634                 }
 635                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 636
 637         }
 638
 639 }
 640
 641 static GtkTextTag *
 642 iter_has_recipient (GtkTextIter *iter)
 643 {
 644         GSList *tags, *node;
 645         GtkTextTag *result = NULL;
 646
 647         tags = gtk_text_iter_get_tags (iter);
 648
 649         for (node = tags; node != NULL; node = g_slist_next (node)) {
 650                 GtkTextTag *tag = GTK_TEXT_TAG (node->data);
 651
 652                 if (g_object_get_data (G_OBJECT (tag), "recipient-tag-id")) {
 653                         result = tag;
 654                         break;
 655                 }
 656         }
 657         g_slist_free (tags);
 658         return result;
 659 }
 660
 661 static GtkTextTag *
 662 prev_iter_has_recipient (GtkTextIter *iter)
 663 {
 664         GtkTextIter prev;
 665
 666         prev = *iter;
 667         gtk_text_iter_backward_char (&prev);
 668         return iter_has_recipient (&prev);
 669 }
 670
 671 /* static GtkTextTag * */
 672 /* next_iter_has_recipient (GtkTextIter *iter) */
 673 /* { */
 674 /*      GtkTextIter next; */
 675
 676 /*      next = *iter; */
 677 /*      return iter_has_recipient (&next); */
 678 /* } */
 679
 680 static gunichar
 681 iter_previous_char (GtkTextIter *iter)
 682 {
 683         GtkTextIter prev;
 684
 685         prev = *iter;
 686         gtk_text_iter_backward_char (&prev);
 687         return gtk_text_iter_get_char (&prev);
 688 }
 689
 690 /* static gunichar  */
 691 /* iter_next_char (GtkTextIter *iter) */
 692 /* { */
 693 /*      GtkTextIter next; */
 694
 695 /*      next = *iter; */
 696 /*      gtk_text_iter_forward_char (&next); */
 697 /*      return gtk_text_iter_get_char (&next); */
 698 /* } */
 699
 700 static void
 701 select_tag_of_iter (GtkTextIter *iter, GtkTextTag *tag)
 702 {
 703         GtkTextIter start, end;
 704
 705         start = *iter;
 706         if (!gtk_text_iter_begins_tag (&start, tag))
 707                 gtk_text_iter_backward_to_tag_toggle (&start, tag);
 708         end = *iter;
 709         if (!gtk_text_iter_ends_tag (&end, tag))
 710                 gtk_text_iter_forward_to_tag_toggle (&end, tag);
 711         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &start, &end);
 712 }
 713
 714 static gboolean
 715 quote_opened (GtkTextIter *iter)
 716 {
 717         GtkTextIter start;
 718         GtkTextBuffer *buffer;
 719         gboolean opened = FALSE;
 720
 721         buffer = gtk_text_iter_get_buffer (iter);
 722         gtk_text_buffer_get_start_iter (buffer, &start);
 723
 724         while (!gtk_text_iter_equal (&start, iter)) {
 725                 gunichar current_char = gtk_text_iter_get_char (&start);
 726                 if (current_char == '"')
 727                         opened = !opened;
 728                 else if (current_char == '\\')
 729                         gtk_text_iter_forward_char (&start);
 730                 if (!gtk_text_iter_equal (&start, iter))
 731                         gtk_text_iter_forward_char (&start);
 732
 733         }
 734         return opened;
 735
 736 }
 737
 738
 739 static gboolean
 740 modest_recpt_editor_on_key_press_event (GtkTextView *text_view,
 741                                           GdkEventKey *key,
 742                                           ModestRecptEditor *editor)
 743 {
 744         GtkTextMark *insert;
 745         GtkTextMark *selection;
 746         GtkTextBuffer * buffer;
 747         GtkTextIter location, selection_loc;
 748         GtkTextTag *tag;
 749
 750 #ifdef MODEST_TOOLKIT_HILDON2
 751         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (text_view));
 752 #else
 753         buffer = gtk_text_view_get_buffer (text_view);
 754 #endif
 755         insert = gtk_text_buffer_get_insert (buffer);
 756         selection = gtk_text_buffer_get_selection_bound (buffer);
 757
 758         /* cases to cover:
 759          *    * cursor is on resolved recipient:
 760          *        - right should go to first character after the recipient (usually ; or ,)
 761          *        - left should fo to the first character before the recipient
 762          *        - return should run check names on the recipient.
 763          *    * cursor is just after a recipient:
 764          *        - right should go to the next character. If it's a recipient, should select
 765          *          it
 766          *        - left should go to the previous character. If it's a recipient, should go
 767          *          to the first character of the recipient, and select it.
 768          *    * cursor is on arbitrary text:
 769          *        - return should add a ; and go to the next line
 770          *        - left or right standard ones.
 771          *    * cursor is after a \n:
 772          *        - left should go to the character before the \n (as if \n was not a character)
 773          *    * cursor is before a \n:
 774          *        - right should go to the character after the \n
 775          */
 776
 777         gtk_text_buffer_get_iter_at_mark (buffer, &location, insert);
 778         gtk_text_buffer_get_iter_at_mark (buffer, &selection_loc, selection);
 779
 780         switch (key->keyval) {
 781         case GDK_Left:
 782         case GDK_KP_Left:
 783         {
 784                 gboolean cursor_ready = FALSE;
 785                 while (!cursor_ready) {
 786                         if (iter_previous_char (&location) == '\n') {
 787                                 gtk_text_iter_backward_char (&location);
 788                         } else {
 789                                 cursor_ready = TRUE;
 790                         }
 791                 }
 792                 tag = iter_has_recipient (&location);
 793                 if ((tag != NULL)&& (gtk_text_iter_is_start (&location) || !(gtk_text_iter_begins_tag (&location, tag)))) {
 794                         select_tag_of_iter (&location, tag);
 795                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 796                         return TRUE;
 797                 }
 798                 gtk_text_iter_backward_char (&location);
 799                 tag = iter_has_recipient (&location);
 800                 if (tag != NULL)
 801                         select_tag_of_iter (&location, tag);
 802                 else {
 803                         gtk_text_buffer_place_cursor (buffer, &location);
 804                 }
 805                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 806
 807                 return TRUE;
 808         }
 809         break;
 810         case GDK_Right:
 811         case GDK_KP_Right:
 812         {
 813                 gboolean cursor_moved = FALSE;
 814
 815                 tag = iter_has_recipient (&location);
 816                 if ((tag != NULL)&&(!gtk_text_iter_ends_tag (&location, tag))) {
 817                         gtk_text_iter_forward_to_tag_toggle (&location, tag);
 818                         while (gtk_text_iter_get_char (&location) == '\n')
 819                                 gtk_text_iter_forward_char (&location);
 820                         gtk_text_buffer_place_cursor (buffer, &location);
 821                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 822                         return TRUE;
 823                 }
 824
 825                 while (gtk_text_iter_get_char (&location) == '\n') {
 826                         gtk_text_iter_forward_char (&location);
 827                         cursor_moved = TRUE;
 828                 }
 829                 if (!cursor_moved)
 830                         gtk_text_iter_forward_char (&location);
 831                 while (gtk_text_iter_get_char (&location) == '\n') {
 832                         gtk_text_iter_forward_char (&location);
 833                         cursor_moved = TRUE;
 834                 }
 835
 836                 tag = iter_has_recipient (&location);
 837                 if (tag != NULL)
 838                         select_tag_of_iter (&location, tag);
 839                 else
 840                         gtk_text_buffer_place_cursor (buffer, &location);
 841                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 842                 return TRUE;
 843         }
 844         break;
 845         case GDK_Return:
 846         case GDK_KP_Enter:
 847         {
 848                 gint insert_offset, selection_offset;
 849                 insert_offset = gtk_text_iter_get_offset (&location);
 850                 selection_offset = gtk_text_iter_get_offset (&selection_loc);
 851                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 852                 if (selection_offset > insert_offset)
 853                         location = selection_loc;
 854                 tag = iter_has_recipient (&location);
 855                 if (tag != NULL) {
 856                         gtk_text_buffer_get_end_iter (buffer, &location);
 857                         gtk_text_buffer_place_cursor (buffer, &location);
 858                         if ((iter_previous_char (&location) != ';')&&(iter_previous_char (&location) != ','))
 859                                 gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
 860                         gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
 861                 } else {
 862                         gunichar prev_char = iter_previous_char (&location);
 863                         if ((gtk_text_iter_is_start (&location))||(prev_char == '\n')
 864                             ||(prev_char == ';')||(prev_char == ','))
 865                                 g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
 866                         else {
 867                                 if ((prev_char != ';') && (prev_char != ','))
 868                                         gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
 869                                 gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
 870                         }
 871                 }
 872                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 873                 return TRUE;
 874         }
 875         break;
 876         case GDK_BackSpace:
 877         {
 878                 #if GTK_CHECK_VERSION(2, 10, 0) /* gtk_text_buffer_get_has_selection is only available in GTK+ 2.10 */
 879                 if (gtk_text_buffer_get_has_selection (buffer)) {
 880                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 881                         return TRUE;
 882                 }
 883                 #else
 884                 if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
 885                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 886                         return TRUE;
 887                 }
 888                 #endif
 889
 890                 tag = prev_iter_has_recipient (&location);
 891                 if (tag != NULL) {
 892                         GtkTextIter iter_in_tag;
 893                         iter_in_tag = location;
 894                         gtk_text_iter_backward_char (&iter_in_tag);
 895                         select_tag_of_iter (&iter_in_tag, tag);
 896                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 897                         return TRUE;
 898                 }
 899                 return FALSE;
 900         }
 901         break;
 902         default:
 903                 return FALSE;
 904         }
 905 }
 906
 907 static void
 908 modest_recpt_editor_move_cursor_to_end (ModestRecptEditor *editor)
 909 {
 910         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 911 #ifdef MODEST_TOOLKIT_HILDON2
 912         GtkTextBuffer *buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 913 #else
 914         GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 915 #endif
 916         GtkTextIter start, end;
 917
 918         gtk_text_buffer_get_end_iter (buffer, &start);
 919         end = start;
 920         gtk_text_buffer_select_range (buffer, &start, &end);
 921
 922
 923 }
 924
 925 void
 926 modest_recpt_editor_grab_focus (ModestRecptEditor *recpt_editor)
 927 {
 928         ModestRecptEditorPrivate *priv;
 929
 930         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 931         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 932
 933         gtk_widget_grab_focus (priv->text_view);
 934 }
 935
 936 gboolean
 937 modest_recpt_editor_has_focus (ModestRecptEditor *recpt_editor)
 938 {
 939         ModestRecptEditorPrivate *priv;
 940
 941         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), FALSE);
 942         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 943
 944         return gtk_widget_is_focus (priv->text_view);
 945 }
 946
 947 static void
 948 modest_recpt_editor_finalize (GObject *object)
 949 {
 950         ModestRecptEditorPrivate *priv;
 951         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (object);
 952
 953         if (priv->recipients) {
 954                 g_free (priv->recipients);
 955                 priv->recipients = NULL;
 956         }
 957
 958         (*parent_class->finalize) (object);
 959
 960         return;
 961 }
 962
 963 static void
 964 modest_recpt_editor_class_init (ModestRecptEditorClass *klass)
 965 {
 966         GObjectClass *object_class;
 967         GtkWidgetClass *widget_class;
 968
 969         parent_class = g_type_class_peek_parent (klass);
 970         object_class = (GObjectClass*) klass;
 971         widget_class = GTK_WIDGET_CLASS (klass);
 972
 973         object_class->finalize = modest_recpt_editor_finalize;
 974
 975         g_type_class_add_private (object_class, sizeof (ModestRecptEditorPrivate));
 976
 977         signals[OPEN_ADDRESSBOOK_SIGNAL] =
 978                 g_signal_new ("open-addressbook",
 979                               G_TYPE_FROM_CLASS (object_class),
 980                               G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
 981                               G_STRUCT_OFFSET (ModestRecptEditorClass, open_addressbook),
 982                               NULL, NULL,
 983                               g_cclosure_marshal_VOID__VOID,
 984                               G_TYPE_NONE, 0);
 985
 986         return;
 987 }
 988
 989 GType
 990 modest_recpt_editor_get_type (void)
 991 {
 992         static GType type = 0;
 993
 994         if (G_UNLIKELY(type == 0))
 995         {
 996                 static const GTypeInfo info =
 997                 {
 998                   sizeof (ModestRecptEditorClass),
 999                   NULL,   /* base_init */
1000                   NULL,   /* base_finalize */
1001                   (GClassInitFunc) modest_recpt_editor_class_init,   /* class_init */
1002                   NULL,   /* class_finalize */
1003                   NULL,   /* class_data */
1004                   sizeof (ModestRecptEditor),
1005                   0,      /* n_preallocs */
1006                   modest_recpt_editor_instance_init    /* instance_init */
1007                 };
1008
1009                 type = g_type_register_static (GTK_TYPE_HBOX,
1010                         "ModestRecptEditor",
1011                         &info, 0);
1012
1013         }
1014
1015         return type;
1016 }