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 gboolean 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 gboolean
 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         return FALSE;
 510 }
 511
 512 static gboolean
 513 is_valid_insert (const gchar *text, gint len)
 514 {
 515         gunichar c;
 516         gunichar next_c;
 517         gint i= 0;
 518         gboolean quoted = FALSE;
 519         const gchar *current, *next_current;
 520         if (text == NULL)
 521                 return TRUE;
 522         current = text;
 523
 524         while (((len == -1)||(i < len)) && (*current != '\0')) {
 525                 c = g_utf8_get_char (current);
 526                 next_current = g_utf8_next_char (current);
 527                 if (next_current && *next_current != '\0')
 528                         next_c = g_utf8_get_char (g_utf8_next_char (current));
 529                 else
 530                         next_c = 0;
 531                 if (!quoted && ((c == g_utf8_get_char(",") || c == g_utf8_get_char (";")))) {
 532                         if ((next_c != 0) && (next_c != g_utf8_get_char ("\n")))
 533                                 return FALSE;
 534                         else {
 535                           current = g_utf8_next_char (next_current);
 536                           continue;
 537                         }
 538                 }
 539                 if (c == 0x2022 || c == 0xfffc ||
 540                     c == g_utf8_get_char ("\n") ||
 541                     c == g_utf8_get_char ("\t"))
 542                         return FALSE;
 543                 if (c == g_utf8_get_char ("\""))
 544                         quoted = !quoted;
 545                 current = g_utf8_next_char (current);
 546                 i = current - text;
 547         }
 548         return TRUE;
 549 }
 550
 551 static gchar *
 552 create_valid_text (const gchar *text, gint len)
 553 {
 554         gunichar c;
 555         gunichar next_c;
 556         gint i= 0;
 557         GString *str;
 558         gboolean quoted = FALSE;
 559         const gchar *current, *next_current;
 560
 561         if (text == NULL)
 562                 return NULL;
 563
 564         str = g_string_new ("");
 565         current = text;
 566
 567         while (((len == -1)||(i < len)) && (*current != '\0')) {
 568                 c = g_utf8_get_char (current);
 569                 next_current = g_utf8_next_char (current);
 570                 if (next_current && *next_current != '\0')
 571                         next_c = g_utf8_get_char (g_utf8_next_char (current));
 572                 else
 573                         next_c = 0;
 574                 if (c != 0x2022 && c != 0xfffc &&
 575                     c != g_utf8_get_char ("\n") &&
 576                     c != g_utf8_get_char ("\t"))
 577                         str = g_string_append_unichar (str, c);
 578                 if (!quoted && ((c == g_utf8_get_char(",") || c == g_utf8_get_char (";")))) {
 579                         if ((next_c != 0) && (next_c != g_utf8_get_char ("\n")))
 580                                 str = g_string_append_c (str, '\n');
 581                 }
 582                 if (c == g_utf8_get_char ("\""))
 583                         quoted = !quoted;
 584                 current = g_utf8_next_char (current);
 585                 i = current - text;
 586         }
 587         return g_string_free (str, FALSE);
 588 }
 589
 590 static void
 591 modest_recpt_editor_on_insert_text (GtkTextBuffer *buffer,
 592                                     GtkTextIter *location,
 593                                     gchar *text,
 594                                     gint len,
 595                                     ModestRecptEditor *editor)
 596 {
 597         GtkTextIter prev;
 598         gunichar prev_char;
 599         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 600
 601         if (len > 1024)
 602                 len = 1024;
 603
 604         if (!is_valid_insert (text, len)) {
 605                 gchar *new_text = create_valid_text (text, len);
 606                 g_signal_stop_emission_by_name (G_OBJECT (buffer), "insert-text");
 607                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text,
 608                                                  editor);
 609                 gtk_text_buffer_insert (buffer, location, new_text, -1);
 610                 g_signal_handlers_unblock_by_func (buffer,
 611                                                    modest_recpt_editor_on_insert_text,
 612                                                    editor);
 613                 g_free (new_text);
 614                 return;
 615         }
 616
 617         if (iter_has_recipient (location)) {
 618                 gtk_text_buffer_get_end_iter (buffer, location);
 619                 gtk_text_buffer_place_cursor (buffer, location);
 620         }
 621
 622         if (gtk_text_iter_is_start (location))
 623                 return;
 624
 625         if (gtk_text_iter_is_end (location)) {
 626                 prev = *location;
 627                 if (!gtk_text_iter_backward_char (&prev))
 628                         return;
 629                 prev_char = gtk_text_iter_get_char (&prev);
 630                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 631                 if ((prev_char == ';'||prev_char == ',')&&(!quote_opened(location))) {
 632                         GtkTextMark *insert;
 633                         gtk_text_buffer_insert (buffer, location, "\n",-1);
 634                         insert = gtk_text_buffer_get_insert (buffer);
 635                         gtk_text_view_scroll_to_iter (GTK_TEXT_VIEW (priv->text_view), location, 0.0,TRUE, 0.0, 1.0);
 636                 }
 637                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 638
 639         }
 640
 641 }
 642
 643 static GtkTextTag *
 644 iter_has_recipient (GtkTextIter *iter)
 645 {
 646         GSList *tags, *node;
 647         GtkTextTag *result = NULL;
 648
 649         tags = gtk_text_iter_get_tags (iter);
 650
 651         for (node = tags; node != NULL; node = g_slist_next (node)) {
 652                 GtkTextTag *tag = GTK_TEXT_TAG (node->data);
 653
 654                 if (g_object_get_data (G_OBJECT (tag), "recipient-tag-id")) {
 655                         result = tag;
 656                         break;
 657                 }
 658         }
 659         g_slist_free (tags);
 660         return result;
 661 }
 662
 663 static GtkTextTag *
 664 prev_iter_has_recipient (GtkTextIter *iter)
 665 {
 666         GtkTextIter prev;
 667
 668         prev = *iter;
 669         gtk_text_iter_backward_char (&prev);
 670         return iter_has_recipient (&prev);
 671 }
 672
 673 /* static GtkTextTag * */
 674 /* next_iter_has_recipient (GtkTextIter *iter) */
 675 /* { */
 676 /*      GtkTextIter next; */
 677
 678 /*      next = *iter; */
 679 /*      return iter_has_recipient (&next); */
 680 /* } */
 681
 682 static gunichar
 683 iter_previous_char (GtkTextIter *iter)
 684 {
 685         GtkTextIter prev;
 686
 687         prev = *iter;
 688         gtk_text_iter_backward_char (&prev);
 689         return gtk_text_iter_get_char (&prev);
 690 }
 691
 692 /* static gunichar  */
 693 /* iter_next_char (GtkTextIter *iter) */
 694 /* { */
 695 /*      GtkTextIter next; */
 696
 697 /*      next = *iter; */
 698 /*      gtk_text_iter_forward_char (&next); */
 699 /*      return gtk_text_iter_get_char (&next); */
 700 /* } */
 701
 702 static void
 703 select_tag_of_iter (GtkTextIter *iter, GtkTextTag *tag)
 704 {
 705         GtkTextIter start, end;
 706
 707         start = *iter;
 708         if (!gtk_text_iter_begins_tag (&start, tag))
 709                 gtk_text_iter_backward_to_tag_toggle (&start, tag);
 710         end = *iter;
 711         if (!gtk_text_iter_ends_tag (&end, tag))
 712                 gtk_text_iter_forward_to_tag_toggle (&end, tag);
 713         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &start, &end);
 714 }
 715
 716 static gboolean
 717 quote_opened (GtkTextIter *iter)
 718 {
 719         GtkTextIter start;
 720         GtkTextBuffer *buffer;
 721         gboolean opened = FALSE;
 722
 723         buffer = gtk_text_iter_get_buffer (iter);
 724         gtk_text_buffer_get_start_iter (buffer, &start);
 725
 726         while (!gtk_text_iter_equal (&start, iter)) {
 727                 gunichar current_char = gtk_text_iter_get_char (&start);
 728                 if (current_char == '"')
 729                         opened = !opened;
 730                 else if (current_char == '\\')
 731                         gtk_text_iter_forward_char (&start);
 732                 if (!gtk_text_iter_equal (&start, iter))
 733                         gtk_text_iter_forward_char (&start);
 734
 735         }
 736         return opened;
 737
 738 }
 739
 740
 741 static gboolean
 742 modest_recpt_editor_on_key_press_event (GtkTextView *text_view,
 743                                           GdkEventKey *key,
 744                                           ModestRecptEditor *editor)
 745 {
 746         GtkTextMark *insert;
 747         GtkTextMark *selection;
 748         GtkTextBuffer * buffer;
 749         GtkTextIter location, selection_loc;
 750         GtkTextTag *tag;
 751
 752 #ifdef MODEST_TOOLKIT_HILDON2
 753         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (text_view));
 754 #else
 755         buffer = gtk_text_view_get_buffer (text_view);
 756 #endif
 757         insert = gtk_text_buffer_get_insert (buffer);
 758         selection = gtk_text_buffer_get_selection_bound (buffer);
 759
 760         /* cases to cover:
 761          *    * cursor is on resolved recipient:
 762          *        - right should go to first character after the recipient (usually ; or ,)
 763          *        - left should fo to the first character before the recipient
 764          *        - return should run check names on the recipient.
 765          *    * cursor is just after a recipient:
 766          *        - right should go to the next character. If it's a recipient, should select
 767          *          it
 768          *        - left should go to the previous character. If it's a recipient, should go
 769          *          to the first character of the recipient, and select it.
 770          *    * cursor is on arbitrary text:
 771          *        - return should add a ; and go to the next line
 772          *        - left or right standard ones.
 773          *    * cursor is after a \n:
 774          *        - left should go to the character before the \n (as if \n was not a character)
 775          *    * cursor is before a \n:
 776          *        - right should go to the character after the \n
 777          */
 778
 779         gtk_text_buffer_get_iter_at_mark (buffer, &location, insert);
 780         gtk_text_buffer_get_iter_at_mark (buffer, &selection_loc, selection);
 781
 782         switch (key->keyval) {
 783         case GDK_Left:
 784         case GDK_KP_Left:
 785         {
 786                 gboolean cursor_ready = FALSE;
 787                 while (!cursor_ready) {
 788                         if (iter_previous_char (&location) == '\n') {
 789                                 gtk_text_iter_backward_char (&location);
 790                         } else {
 791                                 cursor_ready = TRUE;
 792                         }
 793                 }
 794                 tag = iter_has_recipient (&location);
 795                 if ((tag != NULL)&& (gtk_text_iter_is_start (&location) || !(gtk_text_iter_begins_tag (&location, tag)))) {
 796                         select_tag_of_iter (&location, tag);
 797                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 798                         return TRUE;
 799                 }
 800                 gtk_text_iter_backward_char (&location);
 801                 tag = iter_has_recipient (&location);
 802                 if (tag != NULL)
 803                         select_tag_of_iter (&location, tag);
 804                 else {
 805                         gtk_text_buffer_place_cursor (buffer, &location);
 806                 }
 807                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 808
 809                 return TRUE;
 810         }
 811         break;
 812         case GDK_Right:
 813         case GDK_KP_Right:
 814         {
 815                 gboolean cursor_moved = FALSE;
 816
 817                 tag = iter_has_recipient (&location);
 818                 if ((tag != NULL)&&(!gtk_text_iter_ends_tag (&location, tag))) {
 819                         gtk_text_iter_forward_to_tag_toggle (&location, tag);
 820                         while (gtk_text_iter_get_char (&location) == '\n')
 821                                 gtk_text_iter_forward_char (&location);
 822                         gtk_text_buffer_place_cursor (buffer, &location);
 823                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 824                         return TRUE;
 825                 }
 826
 827                 while (gtk_text_iter_get_char (&location) == '\n') {
 828                         gtk_text_iter_forward_char (&location);
 829                         cursor_moved = TRUE;
 830                 }
 831                 if (!cursor_moved)
 832                         gtk_text_iter_forward_char (&location);
 833                 while (gtk_text_iter_get_char (&location) == '\n') {
 834                         gtk_text_iter_forward_char (&location);
 835                         cursor_moved = TRUE;
 836                 }
 837
 838                 tag = iter_has_recipient (&location);
 839                 if (tag != NULL)
 840                         select_tag_of_iter (&location, tag);
 841                 else
 842                         gtk_text_buffer_place_cursor (buffer, &location);
 843                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 844                 return TRUE;
 845         }
 846         break;
 847         case GDK_Return:
 848         case GDK_KP_Enter:
 849         {
 850                 gint insert_offset, selection_offset;
 851                 insert_offset = gtk_text_iter_get_offset (&location);
 852                 selection_offset = gtk_text_iter_get_offset (&selection_loc);
 853                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 854                 if (selection_offset > insert_offset)
 855                         location = selection_loc;
 856                 tag = iter_has_recipient (&location);
 857                 if (tag != NULL) {
 858                         gtk_text_buffer_get_end_iter (buffer, &location);
 859                         gtk_text_buffer_place_cursor (buffer, &location);
 860                         if ((iter_previous_char (&location) != ';')&&(iter_previous_char (&location) != ','))
 861                                 gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
 862                         gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
 863                 } else {
 864                         gunichar prev_char = iter_previous_char (&location);
 865                         if ((gtk_text_iter_is_start (&location))||(prev_char == '\n')
 866                             ||(prev_char == ';')||(prev_char == ','))
 867                                 g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
 868                         else {
 869                                 if ((prev_char != ';') && (prev_char != ','))
 870                                         gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
 871                                 gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
 872                         }
 873                 }
 874                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 875                 return TRUE;
 876         }
 877         break;
 878         case GDK_BackSpace:
 879         {
 880                 #if GTK_CHECK_VERSION(2, 10, 0) /* gtk_text_buffer_get_has_selection is only available in GTK+ 2.10 */
 881                 if (gtk_text_buffer_get_has_selection (buffer)) {
 882                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 883                         return TRUE;
 884                 }
 885                 #else
 886                 if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
 887                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 888                         return TRUE;
 889                 }
 890                 #endif
 891
 892                 tag = prev_iter_has_recipient (&location);
 893                 if (tag != NULL) {
 894                         GtkTextIter iter_in_tag;
 895                         iter_in_tag = location;
 896                         gtk_text_iter_backward_char (&iter_in_tag);
 897                         select_tag_of_iter (&iter_in_tag, tag);
 898                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 899                         return TRUE;
 900                 }
 901                 return FALSE;
 902         }
 903         break;
 904         default:
 905                 return FALSE;
 906         }
 907 }
 908
 909 static void
 910 modest_recpt_editor_move_cursor_to_end (ModestRecptEditor *editor)
 911 {
 912         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 913 #ifdef MODEST_TOOLKIT_HILDON2
 914         GtkTextBuffer *buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 915 #else
 916         GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 917 #endif
 918         GtkTextIter start, end;
 919
 920         gtk_text_buffer_get_end_iter (buffer, &start);
 921         end = start;
 922         gtk_text_buffer_select_range (buffer, &start, &end);
 923
 924
 925 }
 926
 927 void
 928 modest_recpt_editor_grab_focus (ModestRecptEditor *recpt_editor)
 929 {
 930         ModestRecptEditorPrivate *priv;
 931
 932         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 933         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 934
 935         gtk_widget_grab_focus (priv->text_view);
 936 }
 937
 938 gboolean
 939 modest_recpt_editor_has_focus (ModestRecptEditor *recpt_editor)
 940 {
 941         ModestRecptEditorPrivate *priv;
 942
 943         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), FALSE);
 944         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 945
 946         return gtk_widget_is_focus (priv->text_view);
 947 }
 948
 949 static void
 950 modest_recpt_editor_finalize (GObject *object)
 951 {
 952         ModestRecptEditorPrivate *priv;
 953         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (object);
 954
 955         if (priv->recipients) {
 956                 g_free (priv->recipients);
 957                 priv->recipients = NULL;
 958         }
 959
 960         (*parent_class->finalize) (object);
 961
 962         return;
 963 }
 964
 965 static void
 966 modest_recpt_editor_class_init (ModestRecptEditorClass *klass)
 967 {
 968         GObjectClass *object_class;
 969         GtkWidgetClass *widget_class;
 970
 971         parent_class = g_type_class_peek_parent (klass);
 972         object_class = (GObjectClass*) klass;
 973         widget_class = GTK_WIDGET_CLASS (klass);
 974
 975         object_class->finalize = modest_recpt_editor_finalize;
 976
 977         g_type_class_add_private (object_class, sizeof (ModestRecptEditorPrivate));
 978
 979         signals[OPEN_ADDRESSBOOK_SIGNAL] =
 980                 g_signal_new ("open-addressbook",
 981                               G_TYPE_FROM_CLASS (object_class),
 982                               G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
 983                               G_STRUCT_OFFSET (ModestRecptEditorClass, open_addressbook),
 984                               NULL, NULL,
 985                               g_cclosure_marshal_VOID__VOID,
 986                               G_TYPE_NONE, 0);
 987
 988         return;
 989 }
 990
 991 GType
 992 modest_recpt_editor_get_type (void)
 993 {
 994         static GType type = 0;
 995
 996         if (G_UNLIKELY(type == 0))
 997         {
 998                 static const GTypeInfo info =
 999                 {
1000                   sizeof (ModestRecptEditorClass),
1001                   NULL,   /* base_init */
1002                   NULL,   /* base_finalize */
1003                   (GClassInitFunc) modest_recpt_editor_class_init,   /* class_init */
1004                   NULL,   /* class_finalize */
1005                   NULL,   /* class_data */
1006                   sizeof (ModestRecptEditor),
1007                   0,      /* n_preallocs */
1008                   modest_recpt_editor_instance_init    /* instance_init */
1009                 };
1010
1011                 type = g_type_register_static (GTK_TYPE_HBOX,
1012                         "ModestRecptEditor",
1013                         &info, 0);
1014
1015         }
1016
1017         return type;
1018 }