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 #define RECPT_BUTTON_WIDTH_HILDON2 118
  53
  54
  55 static GObjectClass *parent_class = NULL;
  56
  57 #define RECIPIENT_TAG_ID "recpt-id"
  58
  59 /* signals */
  60 enum {
  61         OPEN_ADDRESSBOOK_SIGNAL,
  62         LAST_SIGNAL
  63 };
  64
  65 typedef struct _ModestRecptEditorPrivate ModestRecptEditorPrivate;
  66
  67 struct _ModestRecptEditorPrivate
  68 {
  69         GtkWidget *text_view;
  70         GtkWidget *abook_button;
  71         GtkWidget *scrolled_window;
  72         gchar *recipients;
  73
  74 };
  75
  76 #define MODEST_RECPT_EDITOR_GET_PRIVATE(o)      \
  77         (G_TYPE_INSTANCE_GET_PRIVATE ((o), MODEST_TYPE_RECPT_EDITOR, ModestRecptEditorPrivate))
  78
  79 static guint signals[LAST_SIGNAL] = {0};
  80
  81 /* static functions: GObject */
  82 static void modest_recpt_editor_instance_init (GTypeInstance *instance, gpointer g_class);
  83 static void modest_recpt_editor_finalize (GObject *object);
  84 static void modest_recpt_editor_class_init (ModestRecptEditorClass *klass);
  85
  86 /* widget events */
  87 static void modest_recpt_editor_on_abook_clicked (GtkButton *button,
  88                                                   ModestRecptEditor *editor);
  89 static gboolean modest_recpt_editor_on_button_release_event (GtkWidget *widget,
  90                                                              GdkEventButton *event,
  91                                                              ModestRecptEditor *editor);
  92 static void modest_recpt_editor_move_cursor_to_end (ModestRecptEditor *editor);
  93 static gboolean modest_recpt_editor_on_focus_in (GtkTextView *text_view,
  94                                              GdkEventFocus *event,
  95                                              ModestRecptEditor *editor);
  96 static void modest_recpt_editor_on_insert_text (GtkTextBuffer *buffer,
  97                                                 GtkTextIter *location,
  98                                                 gchar *text,
  99                                                 gint len,
 100                                                 ModestRecptEditor *editor);
 101 static gboolean modest_recpt_editor_on_key_press_event (GtkTextView *text_view,
 102                                                           GdkEventKey *key,
 103                                                           ModestRecptEditor *editor);
 104 static GtkTextTag *iter_has_recipient (GtkTextIter *iter);
 105 static gunichar iter_previous_char (GtkTextIter *iter);
 106 /* static gunichar iter_next_char (GtkTextIter *iter); */
 107 static GtkTextTag *prev_iter_has_recipient (GtkTextIter *iter);
 108 /* static GtkTextTag *next_iter_has_recipient (GtkTextIter *iter); */
 109 static void select_tag_of_iter (GtkTextIter *iter, GtkTextTag *tag);
 110 static gboolean quote_opened (GtkTextIter *iter);
 111 static gboolean is_valid_insert (const gchar *text, gint len);
 112 static gchar *create_valid_text (const gchar *text, gint len);
 113
 114 /**
 115  * modest_recpt_editor_new:
 116  *
 117  * Return value: a new #ModestRecptEditor instance implemented for Gtk+
 118  **/
 119 GtkWidget*
 120 modest_recpt_editor_new (void)
 121 {
 122         ModestRecptEditor *self = g_object_new (MODEST_TYPE_RECPT_EDITOR,
 123                                                 "homogeneous", FALSE,
 124                                                 "spacing", 1,
 125                                                 NULL);
 126
 127         return GTK_WIDGET (self);
 128 }
 129
 130 void
 131 modest_recpt_editor_set_recipients (ModestRecptEditor *recpt_editor, const gchar *recipients)
 132 {
 133         ModestRecptEditorPrivate *priv;
 134         GtkTextBuffer *buffer = NULL;
 135         gchar *valid_recipients = NULL;
 136
 137         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 138         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 139
 140 #ifdef MODEST_TOOLKIT_HILDON2
 141         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 142 #else
 143         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 144 #endif
 145
 146         valid_recipients = create_valid_text (recipients, -1);
 147         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 148         gtk_text_buffer_set_text (buffer, valid_recipients, -1);
 149         g_free (valid_recipients);
 150         if (GTK_WIDGET_REALIZED (recpt_editor))
 151                 gtk_widget_queue_resize (GTK_WIDGET (recpt_editor));
 152         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 153
 154 }
 155
 156 void
 157 modest_recpt_editor_add_recipients (ModestRecptEditor *recpt_editor, const gchar *recipients)
 158 {
 159         ModestRecptEditorPrivate *priv;
 160         GtkTextBuffer *buffer = NULL;
 161         GtkTextIter iter;
 162         gchar *string_to_add;
 163
 164         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 165         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 166
 167         if (recipients == NULL)
 168                 return;
 169
 170 #ifdef MODEST_TOOLKIT_HILDON2
 171         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 172 #else
 173         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 174 #endif
 175
 176         if (gtk_text_buffer_get_char_count (buffer) > 0) {
 177                 string_to_add = g_strconcat (";\n", recipients, NULL);
 178         } else {
 179                 string_to_add = g_strdup (recipients);
 180         }
 181
 182         gtk_text_buffer_get_end_iter (buffer, &iter);
 183
 184         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 185
 186         gtk_text_buffer_insert (buffer, &iter, string_to_add, -1);
 187
 188         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 189
 190         if (GTK_WIDGET_REALIZED (recpt_editor))
 191                 gtk_widget_queue_resize (GTK_WIDGET (recpt_editor));
 192
 193         g_free (string_to_add);
 194 }
 195
 196 void
 197 modest_recpt_editor_add_resolved_recipient (ModestRecptEditor *recpt_editor, GSList *email_list, const gchar * recipient_id)
 198 {
 199         ModestRecptEditorPrivate *priv;
 200         GtkTextBuffer *buffer = NULL;
 201         GtkTextIter start, end, iter;
 202         GtkTextTag *tag = NULL;
 203         GSList *node;
 204         gboolean is_first_recipient = TRUE;
 205
 206         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 207         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 208
 209 #ifdef MODEST_TOOLKIT_HILDON2
 210         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 211 #else
 212         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 213 #endif
 214
 215         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 216         gtk_text_buffer_get_bounds (buffer, &start, &end);
 217         if (gtk_text_buffer_get_char_count (buffer) > 0) {
 218                 gchar * buffer_contents;
 219
 220                 gtk_text_buffer_get_bounds (buffer, &start, &end);
 221                 buffer_contents = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 222                 if (!g_str_has_suffix (buffer_contents, "\n")) {
 223                         if (g_str_has_suffix (buffer_contents, ";")||(g_str_has_suffix (buffer_contents, ",")))
 224                                 gtk_text_buffer_insert (buffer, &end, "\n", -1);
 225                         else
 226                                 gtk_text_buffer_insert (buffer, &end, ";\n", -1);
 227                 }
 228                 g_free (buffer_contents);
 229         }
 230
 231         gtk_text_buffer_get_end_iter (buffer, &iter);
 232
 233         tag = gtk_text_buffer_create_tag (buffer, NULL,
 234                                           "underline", PANGO_UNDERLINE_SINGLE,
 235                                           "wrap-mode", GTK_WRAP_NONE,
 236                                           "editable", TRUE, NULL);
 237
 238         g_object_set_data (G_OBJECT (tag), "recipient-tag-id", GINT_TO_POINTER (RECIPIENT_TAG_ID));
 239         g_object_set_data_full (G_OBJECT (tag), "recipient-id", g_strdup (recipient_id), (GDestroyNotify) g_free);
 240
 241         for (node = email_list; node != NULL; node = g_slist_next (node)) {
 242                 gchar *recipient = (gchar *) node->data;
 243
 244                 if ((recipient) && (strlen (recipient) != 0)) {
 245
 246                         if (!is_first_recipient)
 247                         gtk_text_buffer_insert (buffer, &iter, "\n", -1);
 248
 249                         gtk_text_buffer_insert_with_tags (buffer, &iter, recipient, -1, tag, NULL);
 250                         gtk_text_buffer_insert (buffer, &iter, ";", -1);
 251                         is_first_recipient = FALSE;
 252                 }
 253         }
 254         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 255
 256         modest_recpt_editor_move_cursor_to_end (recpt_editor);
 257
 258 }
 259
 260 void
 261 modest_recpt_editor_replace_with_resolved_recipient (ModestRecptEditor *recpt_editor,
 262                                                      GtkTextIter *start, GtkTextIter *end,
 263                                                      GSList *email_list, const gchar * recipient_id)
 264 {
 265         ModestRecptEditorPrivate *priv;
 266         GtkTextBuffer *buffer;
 267         GtkTextTag *tag;
 268         GSList *node;
 269         gboolean is_first_recipient = TRUE;
 270
 271         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 272         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 273
 274 #ifdef MODEST_TOOLKIT_HILDON2
 275         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 276 #else
 277         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 278 #endif
 279         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 280
 281         gtk_text_buffer_delete (buffer, start, end);
 282
 283         tag = gtk_text_buffer_create_tag (buffer, NULL,
 284                                           "underline", PANGO_UNDERLINE_SINGLE,
 285                                           "wrap-mode", GTK_WRAP_NONE,
 286                                           "editable", TRUE, NULL);
 287
 288         g_object_set_data (G_OBJECT (tag), "recipient-tag-id", GINT_TO_POINTER (RECIPIENT_TAG_ID));
 289         g_object_set_data_full (G_OBJECT (tag), "recipient-id", g_strdup (recipient_id), (GDestroyNotify) g_free);
 290
 291         for (node = email_list; node != NULL; node = g_slist_next (node)) {
 292                 gchar *recipient = (gchar *) node->data;
 293
 294                 if ((recipient) && (strlen (recipient) != 0)) {
 295
 296                         if (!is_first_recipient)
 297                         gtk_text_buffer_insert (buffer, start, "\n", -1);
 298
 299                         gtk_text_buffer_insert_with_tags (buffer, start, recipient, -1, tag, NULL);
 300
 301                         if (node->next != NULL)
 302                                 gtk_text_buffer_insert (buffer, start, ";", -1);
 303                         is_first_recipient = FALSE;
 304                 }
 305         }
 306         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 307
 308 }
 309
 310
 311 const gchar *
 312 modest_recpt_editor_get_recipients (ModestRecptEditor *recpt_editor)
 313 {
 314         ModestRecptEditorPrivate *priv;
 315         GtkTextBuffer *buffer = NULL;
 316         GtkTextIter start, end;
 317         gchar *c;
 318
 319         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), NULL);
 320         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 321
 322         if (priv->recipients != NULL) {
 323                 g_free (priv->recipients);
 324                 priv->recipients = NULL;
 325         }
 326
 327 #ifdef MODEST_TOOKIT_HILDON2
 328         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 329 #else
 330         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 331 #endif
 332
 333         gtk_text_buffer_get_start_iter (buffer, &start);
 334         gtk_text_buffer_get_end_iter (buffer, &end);
 335
 336         priv->recipients = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 337         for (c = priv->recipients; *c != '\0'; c = g_utf8_next_char (c)) {
 338                 if (*c == '\n') {
 339                         *c = ' ';
 340                 }
 341         }
 342
 343         return priv->recipients;
 344
 345 }
 346
 347 static void
 348 modest_recpt_editor_instance_init (GTypeInstance *instance, gpointer g_class)
 349 {
 350         ModestRecptEditorPrivate *priv;
 351         GtkWidget *abook_icon;
 352         GtkTextBuffer *buffer;
 353
 354         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (instance);
 355
 356         priv->abook_button = gtk_button_new ();
 357 #ifdef MODEST_TOOLKIT_HILDON2
 358         gtk_widget_set_size_request (priv->abook_button, RECPT_BUTTON_WIDTH_HILDON2, -1);
 359 #else
 360         gtk_button_set_relief (GTK_BUTTON (priv->abook_button), GTK_RELIEF_NONE);
 361 #endif
 362         gtk_button_set_focus_on_click (GTK_BUTTON (priv->abook_button), FALSE);
 363         GTK_WIDGET_UNSET_FLAGS (priv->abook_button, GTK_CAN_FOCUS);
 364         gtk_button_set_alignment (GTK_BUTTON (priv->abook_button), 0.5, 0.5);
 365 #ifdef MODEST_TOOLKIT_HILDON2
 366         abook_icon = gtk_image_new_from_icon_name ("general_contacts", HILDON_ICON_SIZE_FINGER);
 367 #else
 368         abook_icon = gtk_image_new_from_icon_name ("qgn_list_addressbook", GTK_ICON_SIZE_BUTTON);
 369 #endif
 370         gtk_container_add (GTK_CONTAINER (priv->abook_button), abook_icon);
 371
 372 #ifdef MODEST_TOOLKIT_HILDON2
 373         priv->text_view = hildon_text_view_new ();
 374 #else
 375         priv->text_view = gtk_text_view_new ();
 376 #endif
 377         /* Auto-capitalization is the default, so let's turn it off: */
 378 #ifdef MAEMO_CHANGES
 379         hildon_gtk_text_view_set_input_mode (GTK_TEXT_VIEW (priv->text_view),
 380                 HILDON_GTK_INPUT_MODE_FULL);
 381 #endif
 382
 383         priv->recipients = NULL;
 384
 385 #ifdef MODEST_TOOLKIT_HILDON2
 386         priv->scrolled_window = NULL;
 387         gtk_box_pack_start (GTK_BOX (instance), priv->text_view, TRUE, TRUE, 0);
 388 #else
 389         priv->scrolled_window = modest_scroll_text_new (GTK_TEXT_VIEW (priv->text_view), 1024);
 390         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_POLICY_NEVER,
 391                                         GTK_POLICY_AUTOMATIC);
 392         gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_SHADOW_IN);
 393 /*      gtk_container_add (GTK_CONTAINER (priv->scrolled_window), priv->text_view); */
 394
 395         gtk_box_pack_start (GTK_BOX (instance), priv->scrolled_window, TRUE, TRUE, 0);
 396 /*      gtk_box_pack_start (GTK_BOX (instance), priv->text_view, TRUE, TRUE, 0); */
 397 #endif
 398         gtk_box_pack_end (GTK_BOX (instance), priv->abook_button, FALSE, FALSE, 0);
 399
 400         gtk_text_view_set_accepts_tab (GTK_TEXT_VIEW (priv->text_view), FALSE);
 401         gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (priv->text_view), TRUE);
 402         gtk_text_view_set_editable (GTK_TEXT_VIEW (priv->text_view), TRUE);
 403
 404         gtk_text_view_set_justification (GTK_TEXT_VIEW (priv->text_view), GTK_JUSTIFY_LEFT);
 405         gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (priv->text_view), GTK_WRAP_CHAR);
 406
 407         gtk_widget_set_size_request (priv->text_view, 75, -1);
 408
 409 #ifdef MODEST_TOOLKIT_HILDON2
 410         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 411 #else
 412         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 413 #endif
 414         g_signal_connect (G_OBJECT (priv->abook_button), "clicked", G_CALLBACK (modest_recpt_editor_on_abook_clicked), instance);
 415         g_signal_connect (G_OBJECT (priv->text_view), "button-release-event", G_CALLBACK (modest_recpt_editor_on_button_release_event), instance);
 416         g_signal_connect (G_OBJECT (priv->text_view), "key-press-event", G_CALLBACK (modest_recpt_editor_on_key_press_event), instance);
 417         g_signal_connect (G_OBJECT (priv->text_view), "focus-in-event", G_CALLBACK (modest_recpt_editor_on_focus_in), instance);
 418         g_signal_connect (G_OBJECT (buffer), "insert-text", G_CALLBACK (modest_recpt_editor_on_insert_text), instance);
 419
 420 /*      gtk_container_set_focus_child (GTK_CONTAINER (instance), priv->text_view); */
 421
 422         return;
 423 }
 424
 425 void
 426 modest_recpt_editor_set_field_size_group (ModestRecptEditor *recpt_editor, GtkSizeGroup *size_group)
 427 {
 428         ModestRecptEditorPrivate *priv;
 429
 430         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 431         g_return_if_fail (GTK_IS_SIZE_GROUP (size_group));
 432         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 433
 434 #ifdef MODEST_TOOLKIT_HILDON2
 435         gtk_size_group_add_widget (size_group, priv->text_view);
 436 #else
 437         gtk_size_group_add_widget (size_group, priv->scrolled_window);
 438 #endif
 439 }
 440
 441 GtkTextBuffer *
 442 modest_recpt_editor_get_buffer (ModestRecptEditor *recpt_editor)
 443 {
 444         ModestRecptEditorPrivate *priv;
 445
 446         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), NULL);
 447         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 448
 449 #ifdef MODEST_TOOLKIT_HILDON2
 450         return hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 451 #else
 452         return gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 453 #endif
 454 }
 455
 456 static void
 457 modest_recpt_editor_on_abook_clicked (GtkButton *button, ModestRecptEditor *editor)
 458 {
 459         g_return_if_fail (MODEST_IS_RECPT_EDITOR (editor));
 460
 461         g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
 462 }
 463
 464 static gboolean
 465 modest_recpt_editor_on_button_release_event (GtkWidget *widget,
 466                                              GdkEventButton *event,
 467                                              ModestRecptEditor *recpt_editor)
 468 {
 469         ModestRecptEditorPrivate *priv;
 470         GtkTextIter location, start, end;
 471         GtkTextMark *mark;
 472         GtkTextBuffer *buffer;
 473         GtkTextTag *tag;
 474         gboolean selection_changed = FALSE;
 475
 476         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 477
 478         buffer = modest_recpt_editor_get_buffer (recpt_editor);
 479         mark = gtk_text_buffer_get_insert (buffer);
 480         gtk_text_buffer_get_iter_at_mark (buffer, &location, mark);
 481
 482         gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
 483
 484         tag = iter_has_recipient (&start);
 485         if (tag != NULL)
 486                 if (!gtk_text_iter_begins_tag (&start, tag)) {
 487                         gtk_text_iter_backward_to_tag_toggle (&start, tag);
 488                         selection_changed = TRUE;
 489                 }
 490
 491         tag = iter_has_recipient (&end);
 492         if (tag != NULL)
 493                 if (!gtk_text_iter_ends_tag (&end, tag)) {
 494                         gtk_text_iter_forward_to_tag_toggle (&end, tag);
 495                         selection_changed = TRUE;
 496                 }
 497
 498         if (selection_changed) {
 499                 gtk_text_buffer_select_range (buffer, &start, &end);
 500         } else {
 501                 GTK_TEXT_VIEW (priv->text_view)->pending_place_cursor_button = 0;
 502         }
 503
 504         return FALSE;
 505 }
 506
 507 static gboolean
 508 modest_recpt_editor_on_focus_in (GtkTextView *text_view,
 509                                  GdkEventFocus *event,
 510                                  ModestRecptEditor *editor)
 511 {
 512         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 513         gtk_text_view_place_cursor_onscreen (GTK_TEXT_VIEW (priv->text_view));
 514
 515         return FALSE;
 516 }
 517
 518 static gboolean
 519 is_valid_insert (const gchar *text, gint len)
 520 {
 521         gunichar c;
 522         gunichar next_c;
 523         gint i= 0;
 524         gboolean quoted = FALSE;
 525         const gchar *current, *next_current;
 526         if (text == NULL)
 527                 return TRUE;
 528         current = text;
 529
 530         while (((len == -1)||(i < len)) && (*current != '\0')) {
 531                 c = g_utf8_get_char (current);
 532                 next_current = g_utf8_next_char (current);
 533                 if (next_current && *next_current != '\0')
 534                         next_c = g_utf8_get_char (g_utf8_next_char (current));
 535                 else
 536                         next_c = 0;
 537                 if (!quoted && ((c == g_utf8_get_char(",") || c == g_utf8_get_char (";")))) {
 538                         if ((next_c != 0) && (next_c != g_utf8_get_char ("\n")))
 539                                 return FALSE;
 540                         else {
 541                           current = g_utf8_next_char (next_current);
 542                           continue;
 543                         }
 544                 }
 545                 if (c == 0x2022 || c == 0xfffc ||
 546                     c == g_utf8_get_char ("\n") ||
 547                     c == g_utf8_get_char ("\t"))
 548                         return FALSE;
 549                 if (c == g_utf8_get_char ("\""))
 550                         quoted = !quoted;
 551                 current = g_utf8_next_char (current);
 552                 i = current - text;
 553         }
 554         return TRUE;
 555 }
 556
 557 static gchar *
 558 create_valid_text (const gchar *text, gint len)
 559 {
 560         gunichar c;
 561         gunichar next_c;
 562         gint i= 0;
 563         GString *str;
 564         gboolean quoted = FALSE;
 565         const gchar *current, *next_current;
 566
 567         if (text == NULL)
 568                 return NULL;
 569
 570         str = g_string_new ("");
 571         current = text;
 572
 573         while (((len == -1)||(i < len)) && (*current != '\0')) {
 574                 c = g_utf8_get_char (current);
 575                 next_current = g_utf8_next_char (current);
 576                 if (next_current && *next_current != '\0')
 577                         next_c = g_utf8_get_char (g_utf8_next_char (current));
 578                 else
 579                         next_c = 0;
 580                 if (c != 0x2022 && c != 0xfffc &&
 581                     c != g_utf8_get_char ("\n") &&
 582                     c != g_utf8_get_char ("\t"))
 583                         str = g_string_append_unichar (str, c);
 584                 if (!quoted && ((c == g_utf8_get_char(",") || c == g_utf8_get_char (";")))) {
 585                         if ((next_c != 0) && (next_c != g_utf8_get_char ("\n")))
 586                                 str = g_string_append_c (str, '\n');
 587                 }
 588                 if (c == g_utf8_get_char ("\""))
 589                         quoted = !quoted;
 590                 current = g_utf8_next_char (current);
 591                 i = current - text;
 592         }
 593         return g_string_free (str, FALSE);
 594 }
 595
 596 static void
 597 modest_recpt_editor_on_insert_text (GtkTextBuffer *buffer,
 598                                     GtkTextIter *location,
 599                                     gchar *text,
 600                                     gint len,
 601                                     ModestRecptEditor *editor)
 602 {
 603         GtkTextIter prev;
 604         gunichar prev_char;
 605         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 606
 607         if (len > 1024)
 608                 len = 1024;
 609
 610         if (!is_valid_insert (text, len)) {
 611                 gchar *new_text = create_valid_text (text, len);
 612                 g_signal_stop_emission_by_name (G_OBJECT (buffer), "insert-text");
 613                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text,
 614                                                  editor);
 615                 gtk_text_buffer_insert (buffer, location, new_text, -1);
 616                 g_signal_handlers_unblock_by_func (buffer,
 617                                                    modest_recpt_editor_on_insert_text,
 618                                                    editor);
 619                 g_free (new_text);
 620                 return;
 621         }
 622
 623         if (iter_has_recipient (location)) {
 624                 gtk_text_buffer_get_end_iter (buffer, location);
 625                 gtk_text_buffer_place_cursor (buffer, location);
 626         }
 627
 628         if (gtk_text_iter_is_start (location))
 629                 return;
 630
 631         if (gtk_text_iter_is_end (location)) {
 632                 prev = *location;
 633                 if (!gtk_text_iter_backward_char (&prev))
 634                         return;
 635                 prev_char = gtk_text_iter_get_char (&prev);
 636                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 637                 if ((prev_char == ';'||prev_char == ',')&&(!quote_opened(location))) {
 638                         GtkTextMark *insert;
 639                         gtk_text_buffer_insert (buffer, location, "\n",-1);
 640                         insert = gtk_text_buffer_get_insert (buffer);
 641                         gtk_text_view_scroll_to_iter (GTK_TEXT_VIEW (priv->text_view), location, 0.0,TRUE, 0.0, 1.0);
 642                 }
 643                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 644
 645         }
 646
 647 }
 648
 649 static GtkTextTag *
 650 iter_has_recipient (GtkTextIter *iter)
 651 {
 652         GSList *tags, *node;
 653         GtkTextTag *result = NULL;
 654
 655         tags = gtk_text_iter_get_tags (iter);
 656
 657         for (node = tags; node != NULL; node = g_slist_next (node)) {
 658                 GtkTextTag *tag = GTK_TEXT_TAG (node->data);
 659
 660                 if (g_object_get_data (G_OBJECT (tag), "recipient-tag-id")) {
 661                         result = tag;
 662                         break;
 663                 }
 664         }
 665         g_slist_free (tags);
 666         return result;
 667 }
 668
 669 static GtkTextTag *
 670 prev_iter_has_recipient (GtkTextIter *iter)
 671 {
 672         GtkTextIter prev;
 673
 674         prev = *iter;
 675         gtk_text_iter_backward_char (&prev);
 676         return iter_has_recipient (&prev);
 677 }
 678
 679 /* static GtkTextTag * */
 680 /* next_iter_has_recipient (GtkTextIter *iter) */
 681 /* { */
 682 /*      GtkTextIter next; */
 683
 684 /*      next = *iter; */
 685 /*      return iter_has_recipient (&next); */
 686 /* } */
 687
 688 static gunichar
 689 iter_previous_char (GtkTextIter *iter)
 690 {
 691         GtkTextIter prev;
 692
 693         prev = *iter;
 694         gtk_text_iter_backward_char (&prev);
 695         return gtk_text_iter_get_char (&prev);
 696 }
 697
 698 /* static gunichar  */
 699 /* iter_next_char (GtkTextIter *iter) */
 700 /* { */
 701 /*      GtkTextIter next; */
 702
 703 /*      next = *iter; */
 704 /*      gtk_text_iter_forward_char (&next); */
 705 /*      return gtk_text_iter_get_char (&next); */
 706 /* } */
 707
 708 static void
 709 select_tag_of_iter (GtkTextIter *iter, GtkTextTag *tag)
 710 {
 711         GtkTextIter start, end;
 712
 713         start = *iter;
 714         if (!gtk_text_iter_begins_tag (&start, tag))
 715                 gtk_text_iter_backward_to_tag_toggle (&start, tag);
 716         end = *iter;
 717         if (!gtk_text_iter_ends_tag (&end, tag))
 718                 gtk_text_iter_forward_to_tag_toggle (&end, tag);
 719         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &start, &end);
 720 }
 721
 722 static gboolean
 723 quote_opened (GtkTextIter *iter)
 724 {
 725         GtkTextIter start;
 726         GtkTextBuffer *buffer;
 727         gboolean opened = FALSE;
 728
 729         buffer = gtk_text_iter_get_buffer (iter);
 730         gtk_text_buffer_get_start_iter (buffer, &start);
 731
 732         while (!gtk_text_iter_equal (&start, iter)) {
 733                 gunichar current_char = gtk_text_iter_get_char (&start);
 734                 if (current_char == '"')
 735                         opened = !opened;
 736                 else if (current_char == '\\')
 737                         gtk_text_iter_forward_char (&start);
 738                 if (!gtk_text_iter_equal (&start, iter))
 739                         gtk_text_iter_forward_char (&start);
 740
 741         }
 742         return opened;
 743
 744 }
 745
 746
 747 static gboolean
 748 modest_recpt_editor_on_key_press_event (GtkTextView *text_view,
 749                                           GdkEventKey *key,
 750                                           ModestRecptEditor *editor)
 751 {
 752         GtkTextMark *insert;
 753         GtkTextMark *selection;
 754         GtkTextBuffer * buffer;
 755         GtkTextIter location, selection_loc;
 756         GtkTextTag *tag;
 757
 758 #ifdef MODEST_TOOLKIT_HILDON2
 759         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (text_view));
 760 #else
 761         buffer = gtk_text_view_get_buffer (text_view);
 762 #endif
 763         insert = gtk_text_buffer_get_insert (buffer);
 764         selection = gtk_text_buffer_get_selection_bound (buffer);
 765
 766         /* cases to cover:
 767          *    * cursor is on resolved recipient:
 768          *        - right should go to first character after the recipient (usually ; or ,)
 769          *        - left should fo to the first character before the recipient
 770          *        - return should run check names on the recipient.
 771          *    * cursor is just after a recipient:
 772          *        - right should go to the next character. If it's a recipient, should select
 773          *          it
 774          *        - left should go to the previous character. If it's a recipient, should go
 775          *          to the first character of the recipient, and select it.
 776          *    * cursor is on arbitrary text:
 777          *        - return should add a ; and go to the next line
 778          *        - left or right standard ones.
 779          *    * cursor is after a \n:
 780          *        - left should go to the character before the \n (as if \n was not a character)
 781          *    * cursor is before a \n:
 782          *        - right should go to the character after the \n
 783          */
 784
 785         gtk_text_buffer_get_iter_at_mark (buffer, &location, insert);
 786         gtk_text_buffer_get_iter_at_mark (buffer, &selection_loc, selection);
 787
 788         switch (key->keyval) {
 789         case GDK_Left:
 790         case GDK_KP_Left:
 791         {
 792                 gboolean cursor_ready = FALSE;
 793                 while (!cursor_ready) {
 794                         if (iter_previous_char (&location) == '\n') {
 795                                 gtk_text_iter_backward_char (&location);
 796                         } else {
 797                                 cursor_ready = TRUE;
 798                         }
 799                 }
 800                 tag = iter_has_recipient (&location);
 801                 if ((tag != NULL)&& (gtk_text_iter_is_start (&location) || !(gtk_text_iter_begins_tag (&location, tag)))) {
 802                         select_tag_of_iter (&location, tag);
 803                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 804                         return TRUE;
 805                 }
 806                 gtk_text_iter_backward_char (&location);
 807                 tag = iter_has_recipient (&location);
 808                 if (tag != NULL)
 809                         select_tag_of_iter (&location, tag);
 810                 else {
 811                         gtk_text_buffer_place_cursor (buffer, &location);
 812                 }
 813                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 814
 815                 return TRUE;
 816         }
 817         break;
 818         case GDK_Right:
 819         case GDK_KP_Right:
 820         {
 821                 gboolean cursor_moved = FALSE;
 822
 823                 tag = iter_has_recipient (&location);
 824                 if ((tag != NULL)&&(!gtk_text_iter_ends_tag (&location, tag))) {
 825                         gtk_text_iter_forward_to_tag_toggle (&location, tag);
 826                         while (gtk_text_iter_get_char (&location) == '\n')
 827                                 gtk_text_iter_forward_char (&location);
 828                         gtk_text_buffer_place_cursor (buffer, &location);
 829                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 830                         return TRUE;
 831                 }
 832
 833                 while (gtk_text_iter_get_char (&location) == '\n') {
 834                         gtk_text_iter_forward_char (&location);
 835                         cursor_moved = TRUE;
 836                 }
 837                 if (!cursor_moved)
 838                         gtk_text_iter_forward_char (&location);
 839                 while (gtk_text_iter_get_char (&location) == '\n') {
 840                         gtk_text_iter_forward_char (&location);
 841                         cursor_moved = TRUE;
 842                 }
 843
 844                 tag = iter_has_recipient (&location);
 845                 if (tag != NULL)
 846                         select_tag_of_iter (&location, tag);
 847                 else
 848                         gtk_text_buffer_place_cursor (buffer, &location);
 849                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 850                 return TRUE;
 851         }
 852         break;
 853         case GDK_Return:
 854         case GDK_KP_Enter:
 855         {
 856                 gint insert_offset, selection_offset;
 857                 insert_offset = gtk_text_iter_get_offset (&location);
 858                 selection_offset = gtk_text_iter_get_offset (&selection_loc);
 859                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 860                 if (selection_offset > insert_offset)
 861                         location = selection_loc;
 862                 tag = iter_has_recipient (&location);
 863                 if (tag != NULL) {
 864                         gtk_text_buffer_get_end_iter (buffer, &location);
 865                         gtk_text_buffer_place_cursor (buffer, &location);
 866                         if ((iter_previous_char (&location) != ';')&&(iter_previous_char (&location) != ','))
 867                                 gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
 868                         gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
 869                 } else {
 870                         gunichar prev_char = iter_previous_char (&location);
 871                         if ((gtk_text_iter_is_start (&location))||(prev_char == '\n')
 872                             ||(prev_char == ';')||(prev_char == ','))
 873                                 g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
 874                         else {
 875                                 if ((prev_char != ';') && (prev_char != ','))
 876                                         gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
 877                                 gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
 878                         }
 879                 }
 880                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 881                 return TRUE;
 882         }
 883         break;
 884         case GDK_BackSpace:
 885         {
 886                 #if GTK_CHECK_VERSION(2, 10, 0) /* gtk_text_buffer_get_has_selection is only available in GTK+ 2.10 */
 887                 if (gtk_text_buffer_get_has_selection (buffer)) {
 888                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 889                         return TRUE;
 890                 }
 891                 #else
 892                 if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
 893                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 894                         return TRUE;
 895                 }
 896                 #endif
 897
 898                 tag = prev_iter_has_recipient (&location);
 899                 if (tag != NULL) {
 900                         GtkTextIter iter_in_tag;
 901                         iter_in_tag = location;
 902                         gtk_text_iter_backward_char (&iter_in_tag);
 903                         select_tag_of_iter (&iter_in_tag, tag);
 904                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 905                         return TRUE;
 906                 }
 907                 return FALSE;
 908         }
 909         break;
 910         default:
 911                 return FALSE;
 912         }
 913 }
 914
 915 static void
 916 modest_recpt_editor_move_cursor_to_end (ModestRecptEditor *editor)
 917 {
 918         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 919 #ifdef MODEST_TOOLKIT_HILDON2
 920         GtkTextBuffer *buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 921 #else
 922         GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 923 #endif
 924         GtkTextIter start, end;
 925
 926         gtk_text_buffer_get_end_iter (buffer, &start);
 927         end = start;
 928         gtk_text_buffer_select_range (buffer, &start, &end);
 929
 930
 931 }
 932
 933 void
 934 modest_recpt_editor_grab_focus (ModestRecptEditor *recpt_editor)
 935 {
 936         ModestRecptEditorPrivate *priv;
 937
 938         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 939         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 940
 941         if (GTK_WIDGET_DRAWABLE (recpt_editor)) {
 942                 gtk_widget_grab_focus (priv->text_view);
 943         }
 944 }
 945
 946 gboolean
 947 modest_recpt_editor_has_focus (ModestRecptEditor *recpt_editor)
 948 {
 949         ModestRecptEditorPrivate *priv;
 950
 951         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), FALSE);
 952         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 953
 954         return GTK_WIDGET_DRAWABLE (priv->text_view) &&
 955                 gtk_widget_is_focus (priv->text_view);
 956 }
 957
 958 static void
 959 modest_recpt_editor_finalize (GObject *object)
 960 {
 961         ModestRecptEditorPrivate *priv;
 962         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (object);
 963
 964         if (priv->recipients) {
 965                 g_free (priv->recipients);
 966                 priv->recipients = NULL;
 967         }
 968
 969         (*parent_class->finalize) (object);
 970
 971         return;
 972 }
 973
 974 static void
 975 modest_recpt_editor_class_init (ModestRecptEditorClass *klass)
 976 {
 977         GObjectClass *object_class;
 978         GtkWidgetClass *widget_class;
 979
 980         parent_class = g_type_class_peek_parent (klass);
 981         object_class = (GObjectClass*) klass;
 982         widget_class = GTK_WIDGET_CLASS (klass);
 983
 984         object_class->finalize = modest_recpt_editor_finalize;
 985
 986         g_type_class_add_private (object_class, sizeof (ModestRecptEditorPrivate));
 987
 988         signals[OPEN_ADDRESSBOOK_SIGNAL] =
 989                 g_signal_new ("open-addressbook",
 990                               G_TYPE_FROM_CLASS (object_class),
 991                               G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
 992                               G_STRUCT_OFFSET (ModestRecptEditorClass, open_addressbook),
 993                               NULL, NULL,
 994                               g_cclosure_marshal_VOID__VOID,
 995                               G_TYPE_NONE, 0);
 996
 997         return;
 998 }
 999
1000 GType
1001 modest_recpt_editor_get_type (void)
1002 {
1003         static GType type = 0;
1004
1005         if (G_UNLIKELY(type == 0))
1006         {
1007                 static const GTypeInfo info =
1008                 {
1009                   sizeof (ModestRecptEditorClass),
1010                   NULL,   /* base_init */
1011                   NULL,   /* base_finalize */
1012                   (GClassInitFunc) modest_recpt_editor_class_init,   /* class_init */
1013                   NULL,   /* class_finalize */
1014                   NULL,   /* class_data */
1015                   sizeof (ModestRecptEditor),
1016                   0,      /* n_preallocs */
1017                   modest_recpt_editor_instance_init    /* instance_init */
1018                 };
1019
1020                 type = g_type_register_static (GTK_TYPE_HBOX,
1021                         "ModestRecptEditor",
1022                         &info, 0);
1023
1024         }
1025
1026         return type;
1027 }