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 #include <modest-ui-constants.h>
  47
  48 /* FIXNE: we should have no maemo-deps in widgets/ */
  49 #ifndef MODEST_TOOLKIT_GTK
  50 #include "modest-hildon-includes.h"
  51 #endif /*!MODEST_TOOLKIT_GTK*/
  52
  53 #define RECPT_BUTTON_WIDTH_HILDON2 118
  54
  55
  56 static GObjectClass *parent_class = NULL;
  57
  58 #define RECIPIENT_TAG_ID "recpt-id"
  59
  60 /* signals */
  61 enum {
  62         OPEN_ADDRESSBOOK_SIGNAL,
  63         LAST_SIGNAL
  64 };
  65
  66 typedef struct _ModestRecptEditorPrivate ModestRecptEditorPrivate;
  67
  68 struct _ModestRecptEditorPrivate
  69 {
  70         GtkWidget *text_view;
  71         GtkWidget *abook_button;
  72         GtkWidget *scrolled_window;
  73         gchar *recipients;
  74
  75 };
  76
  77 #define MODEST_RECPT_EDITOR_GET_PRIVATE(o)      \
  78         (G_TYPE_INSTANCE_GET_PRIVATE ((o), MODEST_TYPE_RECPT_EDITOR, ModestRecptEditorPrivate))
  79
  80 static guint signals[LAST_SIGNAL] = {0};
  81
  82 /* static functions: GObject */
  83 static void modest_recpt_editor_instance_init (GTypeInstance *instance, gpointer g_class);
  84 static void modest_recpt_editor_finalize (GObject *object);
  85 static void modest_recpt_editor_class_init (ModestRecptEditorClass *klass);
  86
  87 /* widget events */
  88 static void modest_recpt_editor_on_abook_clicked (GtkButton *button,
  89                                                   ModestRecptEditor *editor);
  90 static gboolean modest_recpt_editor_on_button_release_event (GtkWidget *widget,
  91                                                              GdkEventButton *event,
  92                                                              ModestRecptEditor *editor);
  93 static void modest_recpt_editor_move_cursor_to_end (ModestRecptEditor *editor);
  94 static gboolean modest_recpt_editor_on_focus_in (GtkTextView *text_view,
  95                                              GdkEventFocus *event,
  96                                              ModestRecptEditor *editor);
  97 static void modest_recpt_editor_on_insert_text (GtkTextBuffer *buffer,
  98                                                 GtkTextIter *location,
  99                                                 gchar *text,
 100                                                 gint len,
 101                                                 ModestRecptEditor *editor);
 102 static gboolean modest_recpt_editor_on_key_press_event (GtkTextView *text_view,
 103                                                           GdkEventKey *key,
 104                                                           ModestRecptEditor *editor);
 105 static GtkTextTag *iter_has_recipient (GtkTextIter *iter);
 106 static gunichar iter_previous_char (GtkTextIter *iter);
 107 /* static gunichar iter_next_char (GtkTextIter *iter); */
 108 static GtkTextTag *prev_iter_has_recipient (GtkTextIter *iter);
 109 /* static GtkTextTag *next_iter_has_recipient (GtkTextIter *iter); */
 110 static void select_tag_of_iter (GtkTextIter *iter, GtkTextTag *tag);
 111 static gboolean quote_opened (GtkTextIter *iter);
 112 static gboolean is_valid_insert (const gchar *text, gint len);
 113 static gchar *create_valid_text (const gchar *text, gint len);
 114
 115 /**
 116  * modest_recpt_editor_new:
 117  *
 118  * Return value: a new #ModestRecptEditor instance implemented for Gtk+
 119  **/
 120 GtkWidget*
 121 modest_recpt_editor_new (void)
 122 {
 123         ModestRecptEditor *self = g_object_new (MODEST_TYPE_RECPT_EDITOR,
 124                                                 "homogeneous", FALSE,
 125                                                 "spacing", MODEST_MARGIN_NONE,
 126                                                 NULL);
 127
 128         return GTK_WIDGET (self);
 129 }
 130
 131 void
 132 modest_recpt_editor_set_recipients (ModestRecptEditor *recpt_editor, const gchar *recipients)
 133 {
 134         ModestRecptEditorPrivate *priv;
 135         GtkTextBuffer *buffer = NULL;
 136         gchar *valid_recipients = NULL;
 137
 138         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 139         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 140
 141 #ifdef MODEST_TOOLKIT_HILDON2
 142         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 143 #else
 144         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 145 #endif
 146
 147         valid_recipients = create_valid_text (recipients, -1);
 148         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 149         gtk_text_buffer_set_text (buffer, valid_recipients, -1);
 150         g_free (valid_recipients);
 151         if (GTK_WIDGET_REALIZED (recpt_editor))
 152                 gtk_widget_queue_resize (GTK_WIDGET (recpt_editor));
 153         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 154
 155 }
 156
 157 void
 158 modest_recpt_editor_add_recipients (ModestRecptEditor *recpt_editor, const gchar *recipients)
 159 {
 160         ModestRecptEditorPrivate *priv;
 161         GtkTextBuffer *buffer = NULL;
 162         GtkTextIter iter;
 163         gchar *string_to_add;
 164
 165         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 166         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 167
 168         if (recipients == NULL)
 169                 return;
 170
 171 #ifdef MODEST_TOOLKIT_HILDON2
 172         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 173 #else
 174         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 175 #endif
 176
 177         if (gtk_text_buffer_get_char_count (buffer) > 0) {
 178                 string_to_add = g_strconcat (";\n", recipients, NULL);
 179         } else {
 180                 string_to_add = g_strdup (recipients);
 181         }
 182
 183         gtk_text_buffer_get_end_iter (buffer, &iter);
 184
 185         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 186
 187         gtk_text_buffer_insert (buffer, &iter, string_to_add, -1);
 188
 189         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 190
 191         if (GTK_WIDGET_REALIZED (recpt_editor))
 192                 gtk_widget_queue_resize (GTK_WIDGET (recpt_editor));
 193
 194         g_free (string_to_add);
 195 }
 196
 197 void
 198 modest_recpt_editor_add_resolved_recipient (ModestRecptEditor *recpt_editor, GSList *email_list, const gchar * recipient_id)
 199 {
 200         ModestRecptEditorPrivate *priv;
 201         GtkTextBuffer *buffer = NULL;
 202         GtkTextIter start, end, iter;
 203         GtkTextTag *tag = NULL;
 204         GSList *node;
 205         gboolean is_first_recipient = TRUE;
 206
 207         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 208         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 209
 210 #ifdef MODEST_TOOLKIT_HILDON2
 211         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 212 #else
 213         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 214 #endif
 215
 216         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 217         gtk_text_buffer_get_bounds (buffer, &start, &end);
 218         if (gtk_text_buffer_get_char_count (buffer) > 0) {
 219                 gchar * buffer_contents;
 220
 221                 gtk_text_buffer_get_bounds (buffer, &start, &end);
 222                 buffer_contents = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 223                 if (!g_str_has_suffix (buffer_contents, "\n")) {
 224                         if (g_str_has_suffix (buffer_contents, ";")||(g_str_has_suffix (buffer_contents, ",")))
 225                                 gtk_text_buffer_insert (buffer, &end, "\n", -1);
 226                         else
 227                                 gtk_text_buffer_insert (buffer, &end, ";\n", -1);
 228                 }
 229                 g_free (buffer_contents);
 230         }
 231
 232         gtk_text_buffer_get_end_iter (buffer, &iter);
 233
 234         tag = gtk_text_buffer_create_tag (buffer, NULL,
 235                                           "underline", PANGO_UNDERLINE_SINGLE,
 236                                           "wrap-mode", GTK_WRAP_NONE,
 237                                           "editable", TRUE, NULL);
 238
 239         g_object_set_data (G_OBJECT (tag), "recipient-tag-id", GINT_TO_POINTER (RECIPIENT_TAG_ID));
 240         g_object_set_data_full (G_OBJECT (tag), "recipient-id", g_strdup (recipient_id), (GDestroyNotify) g_free);
 241
 242         for (node = email_list; node != NULL; node = g_slist_next (node)) {
 243                 gchar *recipient = (gchar *) node->data;
 244
 245                 if ((recipient) && (strlen (recipient) != 0)) {
 246
 247                         if (!is_first_recipient)
 248                         gtk_text_buffer_insert (buffer, &iter, "\n", -1);
 249
 250                         gtk_text_buffer_insert_with_tags (buffer, &iter, recipient, -1, tag, NULL);
 251                         gtk_text_buffer_insert (buffer, &iter, ";", -1);
 252                         is_first_recipient = FALSE;
 253                 }
 254         }
 255         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 256
 257         modest_recpt_editor_move_cursor_to_end (recpt_editor);
 258
 259 }
 260
 261 void
 262 modest_recpt_editor_replace_with_resolved_recipient (ModestRecptEditor *recpt_editor,
 263                                                      GtkTextIter *start, GtkTextIter *end,
 264                                                      GSList *email_list, const gchar * recipient_id)
 265 {
 266         ModestRecptEditorPrivate *priv;
 267         GtkTextBuffer *buffer;
 268         GtkTextTag *tag;
 269         GSList *node;
 270         gboolean is_first_recipient = TRUE;
 271
 272         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 273         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 274
 275 #ifdef MODEST_TOOLKIT_HILDON2
 276         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 277 #else
 278         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 279 #endif
 280         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 281
 282         gtk_text_buffer_delete (buffer, start, end);
 283
 284         if (email_list) {
 285
 286                 tag = gtk_text_buffer_create_tag (buffer, NULL,
 287                                                   "underline", PANGO_UNDERLINE_SINGLE,
 288                                                   "wrap-mode", GTK_WRAP_NONE,
 289                                                   "editable", TRUE, NULL);
 290
 291                 g_object_set_data (G_OBJECT (tag), "recipient-tag-id", GINT_TO_POINTER (RECIPIENT_TAG_ID));
 292                 g_object_set_data_full (G_OBJECT (tag), "recipient-id", g_strdup (recipient_id), (GDestroyNotify) g_free);
 293
 294                 for (node = email_list; node != NULL; node = g_slist_next (node)) {
 295                         gchar *recipient = (gchar *) node->data;
 296
 297                         if ((recipient) && (strlen (recipient) != 0)) {
 298
 299                                 if (!is_first_recipient)
 300                                         gtk_text_buffer_insert (buffer, start, "\n", -1);
 301
 302                                 gtk_text_buffer_insert_with_tags (buffer, start, recipient, -1, tag, NULL);
 303
 304                                 if (node->next != NULL)
 305                                         gtk_text_buffer_insert (buffer, start, ";", -1);
 306                                 is_first_recipient = FALSE;
 307                         }
 308                 }
 309         }
 310         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 311
 312 }
 313
 314
 315 const gchar *
 316 modest_recpt_editor_get_recipients (ModestRecptEditor *recpt_editor)
 317 {
 318         ModestRecptEditorPrivate *priv;
 319         GtkTextBuffer *buffer = NULL;
 320         GtkTextIter start, end;
 321         gchar *c;
 322
 323         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), NULL);
 324         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 325
 326         if (priv->recipients != NULL) {
 327                 g_free (priv->recipients);
 328                 priv->recipients = NULL;
 329         }
 330
 331 #ifdef MODEST_TOOKIT_HILDON2
 332         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 333 #else
 334         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 335 #endif
 336
 337         gtk_text_buffer_get_start_iter (buffer, &start);
 338         gtk_text_buffer_get_end_iter (buffer, &end);
 339
 340         priv->recipients = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 341         for (c = priv->recipients; *c != '\0'; c = g_utf8_next_char (c)) {
 342                 if (*c == '\n') {
 343                         *c = ' ';
 344                 }
 345         }
 346
 347         return priv->recipients;
 348
 349 }
 350
 351 static void
 352 modest_recpt_editor_instance_init (GTypeInstance *instance, gpointer g_class)
 353 {
 354         ModestRecptEditorPrivate *priv;
 355         GtkWidget *abook_icon;
 356         GtkWidget *abook_align;
 357         GtkTextBuffer *buffer;
 358
 359         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (instance);
 360
 361         priv->abook_button = gtk_button_new ();
 362 #ifdef MODEST_TOOLKIT_HILDON2
 363         gtk_widget_set_size_request (priv->abook_button, RECPT_BUTTON_WIDTH_HILDON2, -1);
 364 #else
 365         gtk_button_set_relief (GTK_BUTTON (priv->abook_button), GTK_RELIEF_NONE);
 366 #endif
 367         gtk_button_set_focus_on_click (GTK_BUTTON (priv->abook_button), FALSE);
 368         GTK_WIDGET_UNSET_FLAGS (priv->abook_button, GTK_CAN_FOCUS);
 369         gtk_button_set_alignment (GTK_BUTTON (priv->abook_button), 0.5, 0.5);
 370 #ifdef MODEST_TOOLKIT_HILDON2
 371         abook_icon = gtk_image_new_from_icon_name ("general_contacts", HILDON_ICON_SIZE_FINGER);
 372 #else
 373         abook_icon = gtk_image_new_from_icon_name ("qgn_list_addressbook", GTK_ICON_SIZE_BUTTON);
 374 #endif
 375         gtk_container_add (GTK_CONTAINER (priv->abook_button), abook_icon);
 376
 377 #ifdef MODEST_TOOLKIT_HILDON2
 378         priv->text_view = hildon_text_view_new ();
 379 #else
 380         priv->text_view = gtk_text_view_new ();
 381 #endif
 382         /* Auto-capitalization is the default, so let's turn it off: */
 383 #ifdef MAEMO_CHANGES
 384         hildon_gtk_text_view_set_input_mode (GTK_TEXT_VIEW (priv->text_view),
 385                 HILDON_GTK_INPUT_MODE_FULL);
 386 #endif
 387
 388         priv->recipients = NULL;
 389
 390 #ifdef MODEST_TOOLKIT_HILDON2
 391         priv->scrolled_window = NULL;
 392         gtk_box_pack_start (GTK_BOX (instance), priv->text_view, TRUE, TRUE, 0);
 393 #else
 394         priv->scrolled_window = modest_scroll_text_new (GTK_TEXT_VIEW (priv->text_view), 1024);
 395         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_POLICY_NEVER,
 396                                         GTK_POLICY_AUTOMATIC);
 397         gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_SHADOW_IN);
 398 /*      gtk_container_add (GTK_CONTAINER (priv->scrolled_window), priv->text_view); */
 399
 400         gtk_box_pack_start (GTK_BOX (instance), priv->scrolled_window, TRUE, TRUE, 0);
 401 /*      gtk_box_pack_start (GTK_BOX (instance), priv->text_view, TRUE, TRUE, 0); */
 402 #endif
 403         abook_align = gtk_alignment_new (0.0, 0.0, 1.0, 1.0);
 404         gtk_alignment_set_padding (GTK_ALIGNMENT (abook_align), 0, 0, MODEST_MARGIN_DEFAULT, 0);
 405         gtk_container_add (GTK_CONTAINER (abook_align), priv->abook_button);
 406         gtk_box_pack_end (GTK_BOX (instance), abook_align, FALSE, FALSE, 0);
 407
 408         gtk_text_view_set_accepts_tab (GTK_TEXT_VIEW (priv->text_view), FALSE);
 409         gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (priv->text_view), TRUE);
 410         gtk_text_view_set_editable (GTK_TEXT_VIEW (priv->text_view), TRUE);
 411
 412         gtk_text_view_set_justification (GTK_TEXT_VIEW (priv->text_view), GTK_JUSTIFY_LEFT);
 413         gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (priv->text_view), GTK_WRAP_CHAR);
 414
 415         gtk_widget_set_size_request (priv->text_view, 75, -1);
 416
 417 #ifdef MODEST_TOOLKIT_HILDON2
 418         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 419 #else
 420         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 421 #endif
 422         g_signal_connect (G_OBJECT (priv->abook_button), "clicked", G_CALLBACK (modest_recpt_editor_on_abook_clicked), instance);
 423         g_signal_connect (G_OBJECT (priv->text_view), "button-release-event", G_CALLBACK (modest_recpt_editor_on_button_release_event), instance);
 424         g_signal_connect (G_OBJECT (priv->text_view), "key-press-event", G_CALLBACK (modest_recpt_editor_on_key_press_event), instance);
 425         g_signal_connect (G_OBJECT (priv->text_view), "focus-in-event", G_CALLBACK (modest_recpt_editor_on_focus_in), instance);
 426         g_signal_connect (G_OBJECT (buffer), "insert-text", G_CALLBACK (modest_recpt_editor_on_insert_text), instance);
 427
 428 /*      gtk_container_set_focus_child (GTK_CONTAINER (instance), priv->text_view); */
 429
 430         return;
 431 }
 432
 433 void
 434 modest_recpt_editor_set_field_size_group (ModestRecptEditor *recpt_editor, GtkSizeGroup *size_group)
 435 {
 436         ModestRecptEditorPrivate *priv;
 437
 438         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 439         g_return_if_fail (GTK_IS_SIZE_GROUP (size_group));
 440         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 441
 442 #ifdef MODEST_TOOLKIT_HILDON2
 443         gtk_size_group_add_widget (size_group, priv->text_view);
 444 #else
 445         gtk_size_group_add_widget (size_group, priv->scrolled_window);
 446 #endif
 447 }
 448
 449 GtkTextBuffer *
 450 modest_recpt_editor_get_buffer (ModestRecptEditor *recpt_editor)
 451 {
 452         ModestRecptEditorPrivate *priv;
 453
 454         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), NULL);
 455         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 456
 457 #ifdef MODEST_TOOLKIT_HILDON2
 458         return hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 459 #else
 460         return gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 461 #endif
 462 }
 463
 464 static void
 465 modest_recpt_editor_on_abook_clicked (GtkButton *button, ModestRecptEditor *editor)
 466 {
 467         g_return_if_fail (MODEST_IS_RECPT_EDITOR (editor));
 468
 469         g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
 470 }
 471
 472 static gboolean
 473 modest_recpt_editor_on_button_release_event (GtkWidget *widget,
 474                                              GdkEventButton *event,
 475                                              ModestRecptEditor *recpt_editor)
 476 {
 477         ModestRecptEditorPrivate *priv;
 478         GtkTextIter location, start, end;
 479         GtkTextMark *mark;
 480         GtkTextBuffer *buffer;
 481         GtkTextTag *tag;
 482         gboolean selection_changed = FALSE;
 483
 484         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 485
 486         buffer = modest_recpt_editor_get_buffer (recpt_editor);
 487         mark = gtk_text_buffer_get_insert (buffer);
 488         gtk_text_buffer_get_iter_at_mark (buffer, &location, mark);
 489
 490         gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
 491
 492         tag = iter_has_recipient (&start);
 493         if (tag != NULL)
 494                 if (!gtk_text_iter_begins_tag (&start, tag)) {
 495                         gtk_text_iter_backward_to_tag_toggle (&start, tag);
 496                         selection_changed = TRUE;
 497                 }
 498
 499         tag = iter_has_recipient (&end);
 500         if (tag != NULL)
 501                 if (!gtk_text_iter_ends_tag (&end, tag)) {
 502                         gtk_text_iter_forward_to_tag_toggle (&end, tag);
 503                         selection_changed = TRUE;
 504                 }
 505
 506         if (selection_changed) {
 507                 gtk_text_buffer_select_range (buffer, &start, &end);
 508         } else {
 509                 GTK_TEXT_VIEW (priv->text_view)->pending_place_cursor_button = 0;
 510         }
 511
 512         return FALSE;
 513 }
 514
 515 static gboolean
 516 modest_recpt_editor_on_focus_in (GtkTextView *text_view,
 517                                  GdkEventFocus *event,
 518                                  ModestRecptEditor *editor)
 519 {
 520         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 521         gtk_text_view_place_cursor_onscreen (GTK_TEXT_VIEW (priv->text_view));
 522
 523         return FALSE;
 524 }
 525
 526 static gboolean
 527 is_valid_insert (const gchar *text, gint len)
 528 {
 529         gunichar c;
 530         gunichar next_c;
 531         gint i= 0;
 532         gboolean quoted = FALSE;
 533         const gchar *current, *next_current;
 534         if (text == NULL)
 535                 return TRUE;
 536         current = text;
 537
 538         while (((len == -1)||(i < len)) && (*current != '\0')) {
 539                 c = g_utf8_get_char (current);
 540                 next_current = g_utf8_next_char (current);
 541                 if (next_current && *next_current != '\0')
 542                         next_c = g_utf8_get_char (g_utf8_next_char (current));
 543                 else
 544                         next_c = 0;
 545                 if (!quoted && ((c == g_utf8_get_char(",") || c == g_utf8_get_char (";")))) {
 546                         if ((next_c != 0) && (next_c != g_utf8_get_char ("\n")))
 547                                 return FALSE;
 548                         else {
 549                           current = g_utf8_next_char (next_current);
 550                           continue;
 551                         }
 552                 }
 553                 if (c == 0x2022 || c == 0xfffc ||
 554                     c == g_utf8_get_char ("\n") ||
 555                     c == g_utf8_get_char ("\t"))
 556                         return FALSE;
 557                 if (c == g_utf8_get_char ("\""))
 558                         quoted = !quoted;
 559                 current = g_utf8_next_char (current);
 560                 i = current - text;
 561         }
 562         return TRUE;
 563 }
 564
 565 static gchar *
 566 create_valid_text (const gchar *text, gint len)
 567 {
 568         gunichar c;
 569         gunichar next_c;
 570         gint i= 0;
 571         GString *str;
 572         gboolean quoted = FALSE;
 573         const gchar *current, *next_current;
 574
 575         if (text == NULL)
 576                 return NULL;
 577
 578         str = g_string_new ("");
 579         current = text;
 580
 581         while (((len == -1)||(i < len)) && (*current != '\0')) {
 582                 c = g_utf8_get_char (current);
 583                 next_current = g_utf8_next_char (current);
 584                 if (next_current && *next_current != '\0')
 585                         next_c = g_utf8_get_char (g_utf8_next_char (current));
 586                 else
 587                         next_c = 0;
 588                 if (c != 0x2022 && c != 0xfffc &&
 589                     c != g_utf8_get_char ("\n") &&
 590                     c != g_utf8_get_char ("\t"))
 591                         str = g_string_append_unichar (str, c);
 592                 if (!quoted && ((c == g_utf8_get_char(",") || c == g_utf8_get_char (";")))) {
 593                         if ((next_c != 0) && (next_c != g_utf8_get_char ("\n")))
 594                                 str = g_string_append_c (str, '\n');
 595                 }
 596                 if (c == g_utf8_get_char ("\""))
 597                         quoted = !quoted;
 598                 current = g_utf8_next_char (current);
 599                 i = current - text;
 600         }
 601         return g_string_free (str, FALSE);
 602 }
 603
 604 static void
 605 modest_recpt_editor_on_insert_text (GtkTextBuffer *buffer,
 606                                     GtkTextIter *location,
 607                                     gchar *text,
 608                                     gint len,
 609                                     ModestRecptEditor *editor)
 610 {
 611         GtkTextIter prev;
 612         gunichar prev_char;
 613         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 614
 615         if (len > 1024)
 616                 len = 1024;
 617
 618         if (!is_valid_insert (text, len)) {
 619                 gchar *new_text = create_valid_text (text, len);
 620                 g_signal_stop_emission_by_name (G_OBJECT (buffer), "insert-text");
 621                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text,
 622                                                  editor);
 623                 gtk_text_buffer_insert (buffer, location, new_text, -1);
 624                 g_signal_handlers_unblock_by_func (buffer,
 625                                                    modest_recpt_editor_on_insert_text,
 626                                                    editor);
 627                 g_free (new_text);
 628                 return;
 629         }
 630
 631         if (iter_has_recipient (location)) {
 632                 gtk_text_buffer_get_end_iter (buffer, location);
 633                 gtk_text_buffer_place_cursor (buffer, location);
 634         }
 635
 636         if (gtk_text_iter_is_start (location))
 637                 return;
 638
 639         if (gtk_text_iter_is_end (location)) {
 640                 prev = *location;
 641                 if (!gtk_text_iter_backward_char (&prev))
 642                         return;
 643                 prev_char = gtk_text_iter_get_char (&prev);
 644                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 645                 if ((prev_char == ';'||prev_char == ',')&&(!quote_opened(location))) {
 646                         GtkTextMark *insert;
 647                         gtk_text_buffer_insert (buffer, location, "\n",-1);
 648                         insert = gtk_text_buffer_get_insert (buffer);
 649                         gtk_text_view_scroll_to_iter (GTK_TEXT_VIEW (priv->text_view), location, 0.0,TRUE, 0.0, 1.0);
 650                 }
 651                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 652
 653         }
 654
 655 }
 656
 657 static GtkTextTag *
 658 iter_has_recipient (GtkTextIter *iter)
 659 {
 660         GSList *tags, *node;
 661         GtkTextTag *result = NULL;
 662
 663         tags = gtk_text_iter_get_tags (iter);
 664
 665         for (node = tags; node != NULL; node = g_slist_next (node)) {
 666                 GtkTextTag *tag = GTK_TEXT_TAG (node->data);
 667
 668                 if (g_object_get_data (G_OBJECT (tag), "recipient-tag-id")) {
 669                         result = tag;
 670                         break;
 671                 }
 672         }
 673         g_slist_free (tags);
 674         return result;
 675 }
 676
 677 static GtkTextTag *
 678 prev_iter_has_recipient (GtkTextIter *iter)
 679 {
 680         GtkTextIter prev;
 681
 682         prev = *iter;
 683         gtk_text_iter_backward_char (&prev);
 684         return iter_has_recipient (&prev);
 685 }
 686
 687 /* static GtkTextTag * */
 688 /* next_iter_has_recipient (GtkTextIter *iter) */
 689 /* { */
 690 /*      GtkTextIter next; */
 691
 692 /*      next = *iter; */
 693 /*      return iter_has_recipient (&next); */
 694 /* } */
 695
 696 static gunichar
 697 iter_previous_char (GtkTextIter *iter)
 698 {
 699         GtkTextIter prev;
 700
 701         prev = *iter;
 702         gtk_text_iter_backward_char (&prev);
 703         return gtk_text_iter_get_char (&prev);
 704 }
 705
 706 /* static gunichar  */
 707 /* iter_next_char (GtkTextIter *iter) */
 708 /* { */
 709 /*      GtkTextIter next; */
 710
 711 /*      next = *iter; */
 712 /*      gtk_text_iter_forward_char (&next); */
 713 /*      return gtk_text_iter_get_char (&next); */
 714 /* } */
 715
 716 static void
 717 select_tag_of_iter (GtkTextIter *iter, GtkTextTag *tag)
 718 {
 719         GtkTextIter start, end;
 720
 721         start = *iter;
 722         if (!gtk_text_iter_begins_tag (&start, tag))
 723                 gtk_text_iter_backward_to_tag_toggle (&start, tag);
 724         end = *iter;
 725         if (!gtk_text_iter_ends_tag (&end, tag))
 726                 gtk_text_iter_forward_to_tag_toggle (&end, tag);
 727         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &start, &end);
 728 }
 729
 730 static gboolean
 731 quote_opened (GtkTextIter *iter)
 732 {
 733         GtkTextIter start;
 734         GtkTextBuffer *buffer;
 735         gboolean opened = FALSE;
 736
 737         buffer = gtk_text_iter_get_buffer (iter);
 738         gtk_text_buffer_get_start_iter (buffer, &start);
 739
 740         while (!gtk_text_iter_equal (&start, iter)) {
 741                 gunichar current_char = gtk_text_iter_get_char (&start);
 742                 if (current_char == '"')
 743                         opened = !opened;
 744                 else if (current_char == '\\')
 745                         gtk_text_iter_forward_char (&start);
 746                 if (!gtk_text_iter_equal (&start, iter))
 747                         gtk_text_iter_forward_char (&start);
 748
 749         }
 750         return opened;
 751
 752 }
 753
 754
 755 static gboolean
 756 modest_recpt_editor_on_key_press_event (GtkTextView *text_view,
 757                                           GdkEventKey *key,
 758                                           ModestRecptEditor *editor)
 759 {
 760         GtkTextMark *insert;
 761         GtkTextMark *selection;
 762         GtkTextBuffer * buffer;
 763         GtkTextIter location, selection_loc;
 764         GtkTextTag *tag;
 765
 766 #ifdef MODEST_TOOLKIT_HILDON2
 767         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (text_view));
 768 #else
 769         buffer = gtk_text_view_get_buffer (text_view);
 770 #endif
 771         insert = gtk_text_buffer_get_insert (buffer);
 772         selection = gtk_text_buffer_get_selection_bound (buffer);
 773
 774         /* cases to cover:
 775          *    * cursor is on resolved recipient:
 776          *        - right should go to first character after the recipient (usually ; or ,)
 777          *        - left should fo to the first character before the recipient
 778          *        - return should run check names on the recipient.
 779          *    * cursor is just after a recipient:
 780          *        - right should go to the next character. If it's a recipient, should select
 781          *          it
 782          *        - left should go to the previous character. If it's a recipient, should go
 783          *          to the first character of the recipient, and select it.
 784          *    * cursor is on arbitrary text:
 785          *        - return should add a ; and go to the next line
 786          *        - left or right standard ones.
 787          *    * cursor is after a \n:
 788          *        - left should go to the character before the \n (as if \n was not a character)
 789          *    * cursor is before a \n:
 790          *        - right should go to the character after the \n
 791          */
 792
 793         gtk_text_buffer_get_iter_at_mark (buffer, &location, insert);
 794         gtk_text_buffer_get_iter_at_mark (buffer, &selection_loc, selection);
 795
 796         switch (key->keyval) {
 797         case GDK_Left:
 798         case GDK_KP_Left:
 799         {
 800                 gboolean cursor_ready = FALSE;
 801                 while (!cursor_ready) {
 802                         if (iter_previous_char (&location) == '\n') {
 803                                 gtk_text_iter_backward_char (&location);
 804                         } else {
 805                                 cursor_ready = TRUE;
 806                         }
 807                 }
 808                 tag = iter_has_recipient (&location);
 809                 if ((tag != NULL)&& (gtk_text_iter_is_start (&location) || !(gtk_text_iter_begins_tag (&location, tag)))) {
 810                         select_tag_of_iter (&location, tag);
 811                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 812                         return TRUE;
 813                 }
 814                 gtk_text_iter_backward_char (&location);
 815                 tag = iter_has_recipient (&location);
 816                 if (tag != NULL)
 817                         select_tag_of_iter (&location, tag);
 818                 else {
 819                         gtk_text_buffer_place_cursor (buffer, &location);
 820                 }
 821                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 822
 823                 return TRUE;
 824         }
 825         break;
 826         case GDK_Right:
 827         case GDK_KP_Right:
 828         {
 829                 gboolean cursor_moved = FALSE;
 830
 831                 tag = iter_has_recipient (&location);
 832                 if ((tag != NULL)&&(!gtk_text_iter_ends_tag (&location, tag))) {
 833                         gtk_text_iter_forward_to_tag_toggle (&location, tag);
 834                         while (gtk_text_iter_get_char (&location) == '\n')
 835                                 gtk_text_iter_forward_char (&location);
 836                         gtk_text_buffer_place_cursor (buffer, &location);
 837                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 838                         return TRUE;
 839                 }
 840
 841                 while (gtk_text_iter_get_char (&location) == '\n') {
 842                         gtk_text_iter_forward_char (&location);
 843                         cursor_moved = TRUE;
 844                 }
 845                 if (!cursor_moved)
 846                         gtk_text_iter_forward_char (&location);
 847                 while (gtk_text_iter_get_char (&location) == '\n') {
 848                         gtk_text_iter_forward_char (&location);
 849                         cursor_moved = TRUE;
 850                 }
 851
 852                 tag = iter_has_recipient (&location);
 853                 if (tag != NULL)
 854                         select_tag_of_iter (&location, tag);
 855                 else
 856                         gtk_text_buffer_place_cursor (buffer, &location);
 857                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 858                 return TRUE;
 859         }
 860         break;
 861         case GDK_Return:
 862         case GDK_KP_Enter:
 863         {
 864                 gint insert_offset, selection_offset;
 865                 insert_offset = gtk_text_iter_get_offset (&location);
 866                 selection_offset = gtk_text_iter_get_offset (&selection_loc);
 867                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 868                 if (selection_offset > insert_offset)
 869                         location = selection_loc;
 870                 tag = iter_has_recipient (&location);
 871                 if (tag != NULL) {
 872                         gtk_text_buffer_get_end_iter (buffer, &location);
 873                         gtk_text_buffer_place_cursor (buffer, &location);
 874                         if ((iter_previous_char (&location) != ';')&&(iter_previous_char (&location) != ','))
 875                                 gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
 876                         gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
 877                 } else {
 878                         gunichar prev_char = iter_previous_char (&location);
 879                         if ((gtk_text_iter_is_start (&location))||(prev_char == '\n')
 880                             ||(prev_char == ';')||(prev_char == ','))
 881                                 g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
 882                         else {
 883                                 if ((prev_char != ';') && (prev_char != ','))
 884                                         gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
 885                                 gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
 886                         }
 887                 }
 888                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 889                 return TRUE;
 890         }
 891         break;
 892         case GDK_BackSpace:
 893         {
 894                 #if GTK_CHECK_VERSION(2, 10, 0) /* gtk_text_buffer_get_has_selection is only available in GTK+ 2.10 */
 895                 if (gtk_text_buffer_get_has_selection (buffer)) {
 896                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 897                         return TRUE;
 898                 }
 899                 #else
 900                 if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
 901                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 902                         return TRUE;
 903                 }
 904                 #endif
 905
 906                 tag = prev_iter_has_recipient (&location);
 907                 if (tag != NULL) {
 908                         GtkTextIter iter_in_tag;
 909                         iter_in_tag = location;
 910                         gtk_text_iter_backward_char (&iter_in_tag);
 911                         select_tag_of_iter (&iter_in_tag, tag);
 912                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 913                         return TRUE;
 914                 }
 915                 return FALSE;
 916         }
 917         break;
 918         default:
 919                 return FALSE;
 920         }
 921 }
 922
 923 static void
 924 modest_recpt_editor_move_cursor_to_end (ModestRecptEditor *editor)
 925 {
 926         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 927 #ifdef MODEST_TOOLKIT_HILDON2
 928         GtkTextBuffer *buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 929 #else
 930         GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 931 #endif
 932         GtkTextIter start, end;
 933
 934         gtk_text_buffer_get_end_iter (buffer, &start);
 935         end = start;
 936         gtk_text_buffer_select_range (buffer, &start, &end);
 937
 938
 939 }
 940
 941 void
 942 modest_recpt_editor_grab_focus (ModestRecptEditor *recpt_editor)
 943 {
 944         ModestRecptEditorPrivate *priv;
 945
 946         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 947         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 948
 949         if (GTK_WIDGET_VISIBLE (recpt_editor)) {
 950                 gtk_widget_grab_focus (priv->text_view);
 951         }
 952 }
 953
 954 gboolean
 955 modest_recpt_editor_has_focus (ModestRecptEditor *recpt_editor)
 956 {
 957         ModestRecptEditorPrivate *priv;
 958
 959         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), FALSE);
 960         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 961
 962         return GTK_WIDGET_VISIBLE (priv->text_view) &&
 963                 gtk_widget_is_focus (priv->text_view);
 964 }
 965
 966 static void
 967 modest_recpt_editor_finalize (GObject *object)
 968 {
 969         ModestRecptEditorPrivate *priv;
 970         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (object);
 971
 972         if (priv->recipients) {
 973                 g_free (priv->recipients);
 974                 priv->recipients = NULL;
 975         }
 976
 977         (*parent_class->finalize) (object);
 978
 979         return;
 980 }
 981
 982 static void
 983 modest_recpt_editor_class_init (ModestRecptEditorClass *klass)
 984 {
 985         GObjectClass *object_class;
 986         GtkWidgetClass *widget_class;
 987
 988         parent_class = g_type_class_peek_parent (klass);
 989         object_class = (GObjectClass*) klass;
 990         widget_class = GTK_WIDGET_CLASS (klass);
 991
 992         object_class->finalize = modest_recpt_editor_finalize;
 993
 994         g_type_class_add_private (object_class, sizeof (ModestRecptEditorPrivate));
 995
 996         signals[OPEN_ADDRESSBOOK_SIGNAL] =
 997                 g_signal_new ("open-addressbook",
 998                               G_TYPE_FROM_CLASS (object_class),
 999                               G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
1000                               G_STRUCT_OFFSET (ModestRecptEditorClass, open_addressbook),
1001                               NULL, NULL,
1002                               g_cclosure_marshal_VOID__VOID,
1003                               G_TYPE_NONE, 0);
1004
1005         return;
1006 }
1007
1008 GType
1009 modest_recpt_editor_get_type (void)
1010 {
1011         static GType type = 0;
1012
1013         if (G_UNLIKELY(type == 0))
1014         {
1015                 static const GTypeInfo info =
1016                 {
1017                   sizeof (ModestRecptEditorClass),
1018                   NULL,   /* base_init */
1019                   NULL,   /* base_finalize */
1020                   (GClassInitFunc) modest_recpt_editor_class_init,   /* class_init */
1021                   NULL,   /* class_finalize */
1022                   NULL,   /* class_data */
1023                   sizeof (ModestRecptEditor),
1024                   0,      /* n_preallocs */
1025                   modest_recpt_editor_instance_init    /* instance_init */
1026                 };
1027
1028                 type = g_type_register_static (GTK_TYPE_HBOX,
1029                         "ModestRecptEditor",
1030                         &info, 0);
1031
1032         }
1033
1034         return type;
1035 }