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         gulong on_mark_set_handler;
  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 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_mark_set (GtkTextBuffer *buffer,
  95                                              GtkTextIter *iter,
  96                                              GtkTextMark *mark,
  97                                              ModestRecptEditor *editor);
  98 static void modest_recpt_editor_on_insert_text (GtkTextBuffer *buffer,
  99                                                 GtkTextIter *location,
 100                                                 gchar *text,
 101                                                 gint len,
 102                                                 ModestRecptEditor *editor);
 103 static gboolean modest_recpt_editor_on_key_press_event (GtkTextView *text_view,
 104                                                           GdkEventKey *key,
 105                                                           ModestRecptEditor *editor);
 106 static GtkTextTag *iter_has_recipient (GtkTextIter *iter);
 107 static gunichar iter_previous_char (GtkTextIter *iter);
 108 /* static gunichar iter_next_char (GtkTextIter *iter); */
 109 static GtkTextTag *prev_iter_has_recipient (GtkTextIter *iter);
 110 /* static GtkTextTag *next_iter_has_recipient (GtkTextIter *iter); */
 111 static void select_tag_of_iter (GtkTextIter *iter, GtkTextTag *tag);
 112 static gboolean quote_opened (GtkTextIter *iter);
 113 static gboolean is_valid_insert (const gchar *text, gint len);
 114 static gchar *create_valid_text (const gchar *text, gint len);
 115
 116 /**
 117  * modest_recpt_editor_new:
 118  *
 119  * Return value: a new #ModestRecptEditor instance implemented for Gtk+
 120  **/
 121 GtkWidget*
 122 modest_recpt_editor_new (void)
 123 {
 124         ModestRecptEditor *self = g_object_new (MODEST_TYPE_RECPT_EDITOR,
 125                                                 "homogeneous", FALSE,
 126                                                 "spacing", MODEST_MARGIN_NONE,
 127                                                 NULL);
 128
 129         return GTK_WIDGET (self);
 130 }
 131
 132 void
 133 modest_recpt_editor_set_recipients (ModestRecptEditor *recpt_editor, const gchar *recipients)
 134 {
 135         ModestRecptEditorPrivate *priv;
 136         GtkTextBuffer *buffer = NULL;
 137         gchar *valid_recipients = NULL;
 138
 139         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 140         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 141
 142 #ifdef MODEST_TOOLKIT_HILDON2
 143         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 144 #else
 145         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 146 #endif
 147
 148         valid_recipients = create_valid_text (recipients, -1);
 149         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 150         gtk_text_buffer_set_text (buffer, valid_recipients, -1);
 151         g_free (valid_recipients);
 152         if (GTK_WIDGET_REALIZED (recpt_editor))
 153                 gtk_widget_queue_resize (GTK_WIDGET (recpt_editor));
 154         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 155
 156 }
 157
 158 void
 159 modest_recpt_editor_add_recipients (ModestRecptEditor *recpt_editor, const gchar *recipients)
 160 {
 161         ModestRecptEditorPrivate *priv;
 162         GtkTextBuffer *buffer = NULL;
 163         GtkTextIter iter;
 164         gchar *string_to_add;
 165
 166         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 167         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 168
 169         if (recipients == NULL)
 170                 return;
 171
 172 #ifdef MODEST_TOOLKIT_HILDON2
 173         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 174 #else
 175         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 176 #endif
 177
 178         if (gtk_text_buffer_get_char_count (buffer) > 0) {
 179                 string_to_add = g_strconcat (";\n", recipients, NULL);
 180         } else {
 181                 string_to_add = g_strdup (recipients);
 182         }
 183
 184         gtk_text_buffer_get_end_iter (buffer, &iter);
 185
 186         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 187
 188         gtk_text_buffer_insert (buffer, &iter, string_to_add, -1);
 189
 190         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 191
 192         if (GTK_WIDGET_REALIZED (recpt_editor))
 193                 gtk_widget_queue_resize (GTK_WIDGET (recpt_editor));
 194
 195         g_free (string_to_add);
 196 }
 197
 198 void
 199 modest_recpt_editor_add_resolved_recipient (ModestRecptEditor *recpt_editor, GSList *email_list, const gchar * recipient_id)
 200 {
 201         ModestRecptEditorPrivate *priv;
 202         GtkTextBuffer *buffer = NULL;
 203         GtkTextIter start, end, iter;
 204         GtkTextTag *tag = NULL;
 205         GSList *node;
 206         gboolean is_first_recipient = TRUE;
 207
 208         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 209         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 210
 211 #ifdef MODEST_TOOLKIT_HILDON2
 212         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 213 #else
 214         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 215 #endif
 216
 217         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 218         gtk_text_buffer_get_bounds (buffer, &start, &end);
 219         if (gtk_text_buffer_get_char_count (buffer) > 0) {
 220                 gchar * buffer_contents;
 221
 222                 gtk_text_buffer_get_bounds (buffer, &start, &end);
 223                 buffer_contents = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 224                 if (!g_str_has_suffix (buffer_contents, "\n")) {
 225                         if (g_str_has_suffix (buffer_contents, ";")||(g_str_has_suffix (buffer_contents, ",")))
 226                                 gtk_text_buffer_insert (buffer, &end, "\n", -1);
 227                         else
 228                                 gtk_text_buffer_insert (buffer, &end, ";\n", -1);
 229                 }
 230                 g_free (buffer_contents);
 231         }
 232
 233         gtk_text_buffer_get_end_iter (buffer, &iter);
 234
 235         tag = gtk_text_buffer_create_tag (buffer, NULL,
 236                                           "underline", PANGO_UNDERLINE_SINGLE,
 237                                           "wrap-mode", GTK_WRAP_NONE,
 238                                           "editable", TRUE, NULL);
 239
 240         g_object_set_data (G_OBJECT (tag), "recipient-tag-id", GINT_TO_POINTER (RECIPIENT_TAG_ID));
 241         g_object_set_data_full (G_OBJECT (tag), "recipient-id", g_strdup (recipient_id), (GDestroyNotify) g_free);
 242
 243         for (node = email_list; node != NULL; node = g_slist_next (node)) {
 244                 gchar *recipient = (gchar *) node->data;
 245
 246                 if ((recipient) && (strlen (recipient) != 0)) {
 247
 248                         if (!is_first_recipient)
 249                         gtk_text_buffer_insert (buffer, &iter, "\n", -1);
 250
 251                         gtk_text_buffer_insert_with_tags (buffer, &iter, recipient, -1, tag, NULL);
 252                         gtk_text_buffer_insert (buffer, &iter, ";", -1);
 253                         is_first_recipient = FALSE;
 254                 }
 255         }
 256         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 257
 258         modest_recpt_editor_move_cursor_to_end (recpt_editor);
 259
 260 }
 261
 262 void
 263 modest_recpt_editor_replace_with_resolved_recipient (ModestRecptEditor *recpt_editor,
 264                                                      GtkTextIter *start, GtkTextIter *end,
 265                                                      GSList *email_list, const gchar * recipient_id)
 266 {
 267         GSList *email_lists_list;
 268         GSList *recipient_ids_list;
 269
 270         email_lists_list = g_slist_append (NULL, email_list);
 271         recipient_ids_list = g_slist_append (NULL, (gpointer) recipient_id);
 272
 273         modest_recpt_editor_replace_with_resolved_recipients (recpt_editor, start, end,
 274                                                               email_lists_list, recipient_ids_list);
 275
 276         g_slist_free (email_lists_list);
 277         g_slist_free (recipient_ids_list);
 278
 279 }
 280
 281 void
 282 modest_recpt_editor_replace_with_resolved_recipients (ModestRecptEditor *recpt_editor,
 283                                                      GtkTextIter *start, GtkTextIter *end,
 284                                                      GSList *email_lists_list, GSList * recipient_ids_list)
 285 {
 286         ModestRecptEditorPrivate *priv;
 287         GtkTextBuffer *buffer;
 288         GtkTextTag *tag;
 289         GSList *node;
 290         gboolean is_first_recipient = TRUE;
 291
 292         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 293         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 294
 295 #ifdef MODEST_TOOLKIT_HILDON2
 296         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 297 #else
 298         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 299 #endif
 300         g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 301
 302         gtk_text_buffer_delete (buffer, start, end);
 303
 304         while (email_lists_list) {
 305                 gchar *recipient_id = (gchar *) recipient_ids_list->data;
 306                 GSList *email_list = (GSList *) email_lists_list->data;
 307
 308
 309                 tag = gtk_text_buffer_create_tag (buffer, NULL,
 310                                                   "underline", PANGO_UNDERLINE_SINGLE,
 311                                                   "wrap-mode", GTK_WRAP_NONE,
 312                                                   "editable", TRUE, NULL);
 313
 314                 g_object_set_data (G_OBJECT (tag), "recipient-tag-id", GINT_TO_POINTER (RECIPIENT_TAG_ID));
 315                 g_object_set_data_full (G_OBJECT (tag), "recipient-id", g_strdup (recipient_id), (GDestroyNotify) g_free);
 316
 317                 for (node = email_list; node != NULL; node = g_slist_next (node)) {
 318                         gchar *recipient = (gchar *) node->data;
 319
 320                         if ((recipient) && (strlen (recipient) != 0)) {
 321
 322                                 if (!is_first_recipient)
 323                                         gtk_text_buffer_insert (buffer, start, "\n", -1);
 324
 325                                 gtk_text_buffer_insert_with_tags (buffer, start, recipient, -1, tag, NULL);
 326
 327                                 if (node->next != NULL)
 328                                         gtk_text_buffer_insert (buffer, start, ";", -1);
 329                                 is_first_recipient = FALSE;
 330                         }
 331                 }
 332
 333                 email_lists_list = g_slist_next (email_lists_list);
 334                 recipient_ids_list = g_slist_next (recipient_ids_list);
 335         }
 336         g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, recpt_editor);
 337
 338 }
 339
 340
 341 const gchar *
 342 modest_recpt_editor_get_recipients (ModestRecptEditor *recpt_editor)
 343 {
 344         ModestRecptEditorPrivate *priv;
 345         GtkTextBuffer *buffer = NULL;
 346         GtkTextIter start, end;
 347         gchar *c;
 348
 349         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), NULL);
 350         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 351
 352         if (priv->recipients != NULL) {
 353                 g_free (priv->recipients);
 354                 priv->recipients = NULL;
 355         }
 356
 357 #ifdef MODEST_TOOKIT_HILDON2
 358         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 359 #else
 360         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 361 #endif
 362
 363         gtk_text_buffer_get_start_iter (buffer, &start);
 364         gtk_text_buffer_get_end_iter (buffer, &end);
 365
 366         priv->recipients = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 367         for (c = priv->recipients; *c != '\0'; c = g_utf8_next_char (c)) {
 368                 if (*c == '\n') {
 369                         *c = ' ';
 370                 }
 371         }
 372
 373         return priv->recipients;
 374
 375 }
 376
 377 static void
 378 modest_recpt_editor_instance_init (GTypeInstance *instance, gpointer g_class)
 379 {
 380         ModestRecptEditorPrivate *priv;
 381         GtkWidget *abook_icon;
 382         GtkWidget *abook_align;
 383         GtkTextBuffer *buffer;
 384
 385         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (instance);
 386
 387         priv->abook_button = gtk_button_new ();
 388 #ifdef MODEST_TOOLKIT_HILDON2
 389         gtk_widget_set_size_request (priv->abook_button, RECPT_BUTTON_WIDTH_HILDON2, -1);
 390 #else
 391         gtk_button_set_relief (GTK_BUTTON (priv->abook_button), GTK_RELIEF_NONE);
 392 #endif
 393         gtk_button_set_focus_on_click (GTK_BUTTON (priv->abook_button), FALSE);
 394         GTK_WIDGET_UNSET_FLAGS (priv->abook_button, GTK_CAN_FOCUS);
 395         gtk_button_set_alignment (GTK_BUTTON (priv->abook_button), 0.5, 0.5);
 396 #ifdef MODEST_TOOLKIT_HILDON2
 397         abook_icon = gtk_image_new_from_icon_name ("general_contacts", HILDON_ICON_SIZE_FINGER);
 398 #else
 399         abook_icon = gtk_image_new_from_icon_name ("qgn_list_addressbook", GTK_ICON_SIZE_BUTTON);
 400 #endif
 401         gtk_container_add (GTK_CONTAINER (priv->abook_button), abook_icon);
 402
 403 #ifdef MODEST_TOOLKIT_HILDON2
 404         priv->text_view = hildon_text_view_new ();
 405 #else
 406         priv->text_view = gtk_text_view_new ();
 407 #endif
 408         /* Auto-capitalization is the default, so let's turn it off: */
 409 #ifdef MAEMO_CHANGES
 410         hildon_gtk_text_view_set_input_mode (GTK_TEXT_VIEW (priv->text_view),
 411                 HILDON_GTK_INPUT_MODE_FULL);
 412 #endif
 413
 414         priv->recipients = NULL;
 415
 416 #ifdef MODEST_TOOLKIT_HILDON2
 417         priv->scrolled_window = NULL;
 418         gtk_box_pack_start (GTK_BOX (instance), priv->text_view, TRUE, TRUE, 0);
 419 #else
 420         priv->scrolled_window = modest_scroll_text_new (GTK_TEXT_VIEW (priv->text_view), 1024);
 421         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_POLICY_NEVER,
 422                                         GTK_POLICY_AUTOMATIC);
 423         gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (priv->scrolled_window), GTK_SHADOW_IN);
 424 /*      gtk_container_add (GTK_CONTAINER (priv->scrolled_window), priv->text_view); */
 425
 426         gtk_box_pack_start (GTK_BOX (instance), priv->scrolled_window, TRUE, TRUE, 0);
 427 /*      gtk_box_pack_start (GTK_BOX (instance), priv->text_view, TRUE, TRUE, 0); */
 428 #endif
 429         abook_align = gtk_alignment_new (0.0, 0.0, 1.0, 1.0);
 430         gtk_alignment_set_padding (GTK_ALIGNMENT (abook_align), 0, 0, MODEST_MARGIN_DEFAULT, 0);
 431         gtk_container_add (GTK_CONTAINER (abook_align), priv->abook_button);
 432         gtk_box_pack_end (GTK_BOX (instance), abook_align, FALSE, FALSE, 0);
 433
 434         gtk_text_view_set_accepts_tab (GTK_TEXT_VIEW (priv->text_view), FALSE);
 435         gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (priv->text_view), TRUE);
 436         gtk_text_view_set_editable (GTK_TEXT_VIEW (priv->text_view), TRUE);
 437
 438         gtk_text_view_set_justification (GTK_TEXT_VIEW (priv->text_view), GTK_JUSTIFY_LEFT);
 439         gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (priv->text_view), GTK_WRAP_CHAR);
 440
 441         gtk_widget_set_size_request (priv->text_view, 75, -1);
 442
 443 #ifdef MODEST_TOOLKIT_HILDON2
 444         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 445 #else
 446         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 447 #endif
 448         g_signal_connect (G_OBJECT (priv->abook_button), "clicked", G_CALLBACK (modest_recpt_editor_on_abook_clicked), instance);
 449         g_signal_connect (G_OBJECT (priv->text_view), "key-press-event", G_CALLBACK (modest_recpt_editor_on_key_press_event), instance);
 450         g_signal_connect (G_OBJECT (priv->text_view), "focus-in-event", G_CALLBACK (modest_recpt_editor_on_focus_in), instance);
 451         g_signal_connect (G_OBJECT (buffer), "insert-text", G_CALLBACK (modest_recpt_editor_on_insert_text), instance);
 452
 453         priv->on_mark_set_handler = g_signal_connect (G_OBJECT (buffer), "mark-set",
 454                                                       G_CALLBACK (modest_recpt_editor_on_mark_set),
 455                                                       instance);
 456
 457         return;
 458 }
 459
 460 void
 461 modest_recpt_editor_set_field_size_group (ModestRecptEditor *recpt_editor, GtkSizeGroup *size_group)
 462 {
 463         ModestRecptEditorPrivate *priv;
 464
 465         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 466         g_return_if_fail (GTK_IS_SIZE_GROUP (size_group));
 467         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 468
 469 #ifdef MODEST_TOOLKIT_HILDON2
 470         gtk_size_group_add_widget (size_group, priv->text_view);
 471 #else
 472         gtk_size_group_add_widget (size_group, priv->scrolled_window);
 473 #endif
 474 }
 475
 476 GtkTextBuffer *
 477 modest_recpt_editor_get_buffer (ModestRecptEditor *recpt_editor)
 478 {
 479         ModestRecptEditorPrivate *priv;
 480
 481         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), NULL);
 482         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 483
 484 #ifdef MODEST_TOOLKIT_HILDON2
 485         return hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 486 #else
 487         return gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 488 #endif
 489 }
 490
 491 static void
 492 modest_recpt_editor_on_abook_clicked (GtkButton *button, ModestRecptEditor *editor)
 493 {
 494         g_return_if_fail (MODEST_IS_RECPT_EDITOR (editor));
 495
 496         g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
 497 }
 498
 499 static void
 500 modest_recpt_editor_on_mark_set (GtkTextBuffer *buffer,
 501                                  GtkTextIter *iter,
 502                                  GtkTextMark *mark,
 503                                  ModestRecptEditor *recpt_editor)
 504 {
 505         ModestRecptEditorPrivate *priv;
 506         GtkTextIter start, end;
 507         GtkTextMark *selection_bound;
 508         GtkTextTag *tag;
 509         gboolean selection_changed = FALSE;
 510
 511         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 512
 513         buffer = modest_recpt_editor_get_buffer (recpt_editor);
 514         selection_bound = gtk_text_buffer_get_selection_bound (buffer);
 515
 516         if (mark != selection_bound)
 517                 return;
 518
 519         gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
 520
 521         tag = iter_has_recipient (&start);
 522         if (tag != NULL)
 523                 if (!gtk_text_iter_begins_tag (&start, tag)) {
 524                         gtk_text_iter_backward_to_tag_toggle (&start, tag);
 525                         selection_changed = TRUE;
 526                 }
 527
 528         tag = iter_has_recipient (&end);
 529         if (tag != NULL)
 530                 if (!gtk_text_iter_ends_tag (&end, tag)) {
 531                         gtk_text_iter_forward_to_tag_toggle (&end, tag);
 532                         selection_changed = TRUE;
 533                 }
 534
 535         if (selection_changed) {
 536                 /* We block this signal handler in order to prevent a
 537                    stack overflow caused by recursive calls to this
 538                    handler as the select_range call could issue a
 539                    "mark-set" signal */
 540                 g_signal_handler_block (buffer, priv->on_mark_set_handler);
 541                 gtk_text_buffer_select_range (buffer, &start, &end);
 542                 g_signal_handler_unblock (buffer, priv->on_mark_set_handler);
 543         }
 544 }
 545
 546 static gboolean
 547 modest_recpt_editor_on_focus_in (GtkTextView *text_view,
 548                                  GdkEventFocus *event,
 549                                  ModestRecptEditor *editor)
 550 {
 551         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 552         gtk_text_view_place_cursor_onscreen (GTK_TEXT_VIEW (priv->text_view));
 553
 554         return FALSE;
 555 }
 556
 557 static gboolean
 558 is_valid_insert (const gchar *text, gint len)
 559 {
 560         gunichar c;
 561         gunichar next_c;
 562         gint i= 0;
 563         gboolean quoted = FALSE;
 564         const gchar *current, *next_current;
 565         if (text == NULL)
 566                 return TRUE;
 567         current = text;
 568
 569         while (((len == -1)||(i < len)) && (*current != '\0')) {
 570                 c = g_utf8_get_char (current);
 571                 next_current = g_utf8_next_char (current);
 572                 if (next_current && *next_current != '\0')
 573                         next_c = g_utf8_get_char (g_utf8_next_char (current));
 574                 else
 575                         next_c = 0;
 576                 if (!quoted && ((c == g_utf8_get_char(",") || c == g_utf8_get_char (";")))) {
 577                         if ((next_c != 0) && (next_c != g_utf8_get_char ("\n")))
 578                                 return FALSE;
 579                         else {
 580                           current = g_utf8_next_char (next_current);
 581                           continue;
 582                         }
 583                 }
 584                 if (c == 0x2022 || c == 0xfffc ||
 585                     c == g_utf8_get_char ("\n") ||
 586                     c == g_utf8_get_char ("\t"))
 587                         return FALSE;
 588                 if (c == g_utf8_get_char ("\""))
 589                         quoted = !quoted;
 590                 current = g_utf8_next_char (current);
 591                 i = current - text;
 592         }
 593         return TRUE;
 594 }
 595
 596 static gchar *
 597 create_valid_text (const gchar *text, gint len)
 598 {
 599         gunichar c;
 600         gunichar next_c;
 601         gint i= 0;
 602         GString *str;
 603         gboolean quoted = FALSE;
 604         const gchar *current, *next_current;
 605
 606         if (text == NULL)
 607                 return NULL;
 608
 609         str = g_string_new ("");
 610         current = text;
 611
 612         while (((len == -1)||(i < len)) && (*current != '\0')) {
 613                 c = g_utf8_get_char (current);
 614                 next_current = g_utf8_next_char (current);
 615                 if (next_current && *next_current != '\0')
 616                         next_c = g_utf8_get_char (g_utf8_next_char (current));
 617                 else
 618                         next_c = 0;
 619                 if (c != 0x2022 && c != 0xfffc &&
 620                     c != g_utf8_get_char ("\n") &&
 621                     c != g_utf8_get_char ("\t"))
 622                         str = g_string_append_unichar (str, c);
 623                 if (!quoted && ((c == g_utf8_get_char(",") || c == g_utf8_get_char (";")))) {
 624                         if ((next_c != 0) && (next_c != g_utf8_get_char ("\n")))
 625                                 str = g_string_append_c (str, '\n');
 626                 }
 627                 if (c == g_utf8_get_char ("\""))
 628                         quoted = !quoted;
 629                 current = g_utf8_next_char (current);
 630                 i = current - text;
 631         }
 632         return g_string_free (str, FALSE);
 633 }
 634
 635 static void
 636 modest_recpt_editor_on_insert_text (GtkTextBuffer *buffer,
 637                                     GtkTextIter *location,
 638                                     gchar *text,
 639                                     gint len,
 640                                     ModestRecptEditor *editor)
 641 {
 642         GtkTextIter prev;
 643         gunichar prev_char;
 644         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 645
 646         if (len > 1024)
 647                 len = 1024;
 648
 649         if (!is_valid_insert (text, len)) {
 650                 gchar *new_text = create_valid_text (text, len);
 651                 g_signal_stop_emission_by_name (G_OBJECT (buffer), "insert-text");
 652                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text,
 653                                                  editor);
 654                 gtk_text_buffer_insert (buffer, location, new_text, -1);
 655                 g_signal_handlers_unblock_by_func (buffer,
 656                                                    modest_recpt_editor_on_insert_text,
 657                                                    editor);
 658                 g_free (new_text);
 659                 return;
 660         }
 661
 662         if (iter_has_recipient (location)) {
 663                 gtk_text_buffer_get_end_iter (buffer, location);
 664                 gtk_text_buffer_place_cursor (buffer, location);
 665         }
 666
 667         if (gtk_text_iter_is_start (location))
 668                 return;
 669
 670         if (gtk_text_iter_is_end (location)) {
 671                 prev = *location;
 672                 if (!gtk_text_iter_backward_char (&prev))
 673                         return;
 674                 prev_char = gtk_text_iter_get_char (&prev);
 675                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 676                 if ((prev_char == ';'||prev_char == ',')&&(!quote_opened(location))) {
 677                         GtkTextMark *insert;
 678                         gtk_text_buffer_insert (buffer, location, "\n",-1);
 679                         insert = gtk_text_buffer_get_insert (buffer);
 680                         gtk_text_view_scroll_to_iter (GTK_TEXT_VIEW (priv->text_view), location, 0.0,TRUE, 0.0, 1.0);
 681                 }
 682                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 683
 684         }
 685
 686 }
 687
 688 static GtkTextTag *
 689 iter_has_recipient (GtkTextIter *iter)
 690 {
 691         GSList *tags, *node;
 692         GtkTextTag *result = NULL;
 693
 694         tags = gtk_text_iter_get_tags (iter);
 695
 696         for (node = tags; node != NULL; node = g_slist_next (node)) {
 697                 GtkTextTag *tag = GTK_TEXT_TAG (node->data);
 698
 699                 if (g_object_get_data (G_OBJECT (tag), "recipient-tag-id")) {
 700                         result = tag;
 701                         break;
 702                 }
 703         }
 704         g_slist_free (tags);
 705         return result;
 706 }
 707
 708 static GtkTextTag *
 709 prev_iter_has_recipient (GtkTextIter *iter)
 710 {
 711         GtkTextIter prev;
 712
 713         prev = *iter;
 714         gtk_text_iter_backward_char (&prev);
 715         return iter_has_recipient (&prev);
 716 }
 717
 718 /* static GtkTextTag * */
 719 /* next_iter_has_recipient (GtkTextIter *iter) */
 720 /* { */
 721 /*      GtkTextIter next; */
 722
 723 /*      next = *iter; */
 724 /*      return iter_has_recipient (&next); */
 725 /* } */
 726
 727 static gunichar
 728 iter_previous_char (GtkTextIter *iter)
 729 {
 730         GtkTextIter prev;
 731
 732         prev = *iter;
 733         gtk_text_iter_backward_char (&prev);
 734         return gtk_text_iter_get_char (&prev);
 735 }
 736
 737 /* static gunichar  */
 738 /* iter_next_char (GtkTextIter *iter) */
 739 /* { */
 740 /*      GtkTextIter next; */
 741
 742 /*      next = *iter; */
 743 /*      gtk_text_iter_forward_char (&next); */
 744 /*      return gtk_text_iter_get_char (&next); */
 745 /* } */
 746
 747 static void
 748 select_tag_of_iter (GtkTextIter *iter, GtkTextTag *tag)
 749 {
 750         GtkTextIter start, end;
 751
 752         start = *iter;
 753         if (!gtk_text_iter_begins_tag (&start, tag))
 754                 gtk_text_iter_backward_to_tag_toggle (&start, tag);
 755         end = *iter;
 756         if (!gtk_text_iter_ends_tag (&end, tag))
 757                 gtk_text_iter_forward_to_tag_toggle (&end, tag);
 758         gtk_text_buffer_select_range (gtk_text_iter_get_buffer (iter), &start, &end);
 759 }
 760
 761 static gboolean
 762 quote_opened (GtkTextIter *iter)
 763 {
 764         GtkTextIter start;
 765         GtkTextBuffer *buffer;
 766         gboolean opened = FALSE;
 767
 768         buffer = gtk_text_iter_get_buffer (iter);
 769         gtk_text_buffer_get_start_iter (buffer, &start);
 770
 771         while (!gtk_text_iter_equal (&start, iter)) {
 772                 gunichar current_char = gtk_text_iter_get_char (&start);
 773                 if (current_char == '"')
 774                         opened = !opened;
 775                 else if (current_char == '\\')
 776                         gtk_text_iter_forward_char (&start);
 777                 if (!gtk_text_iter_equal (&start, iter))
 778                         gtk_text_iter_forward_char (&start);
 779
 780         }
 781         return opened;
 782
 783 }
 784
 785
 786 static gboolean
 787 modest_recpt_editor_on_key_press_event (GtkTextView *text_view,
 788                                           GdkEventKey *key,
 789                                           ModestRecptEditor *editor)
 790 {
 791         GtkTextMark *insert;
 792         GtkTextMark *selection;
 793         GtkTextBuffer * buffer;
 794         GtkTextIter location, selection_loc;
 795         GtkTextTag *tag;
 796
 797 #ifdef MODEST_TOOLKIT_HILDON2
 798         buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (text_view));
 799 #else
 800         buffer = gtk_text_view_get_buffer (text_view);
 801 #endif
 802         insert = gtk_text_buffer_get_insert (buffer);
 803         selection = gtk_text_buffer_get_selection_bound (buffer);
 804
 805         /* cases to cover:
 806          *    * cursor is on resolved recipient:
 807          *        - right should go to first character after the recipient (usually ; or ,)
 808          *        - left should fo to the first character before the recipient
 809          *        - return should run check names on the recipient.
 810          *    * cursor is just after a recipient:
 811          *        - right should go to the next character. If it's a recipient, should select
 812          *          it
 813          *        - left should go to the previous character. If it's a recipient, should go
 814          *          to the first character of the recipient, and select it.
 815          *    * cursor is on arbitrary text:
 816          *        - return should add a ; and go to the next line
 817          *        - left or right standard ones.
 818          *    * cursor is after a \n:
 819          *        - left should go to the character before the \n (as if \n was not a character)
 820          *    * cursor is before a \n:
 821          *        - right should go to the character after the \n
 822          */
 823
 824         gtk_text_buffer_get_iter_at_mark (buffer, &location, insert);
 825         gtk_text_buffer_get_iter_at_mark (buffer, &selection_loc, selection);
 826
 827         switch (key->keyval) {
 828         case GDK_Left:
 829         case GDK_KP_Left:
 830         {
 831                 gboolean cursor_ready = FALSE;
 832                 while (!cursor_ready) {
 833                         if (iter_previous_char (&location) == '\n') {
 834                                 gtk_text_iter_backward_char (&location);
 835                         } else {
 836                                 cursor_ready = TRUE;
 837                         }
 838                 }
 839                 tag = iter_has_recipient (&location);
 840                 if ((tag != NULL)&& (gtk_text_iter_is_start (&location) || !(gtk_text_iter_begins_tag (&location, tag)))) {
 841                         select_tag_of_iter (&location, tag);
 842                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 843                         return TRUE;
 844                 }
 845                 gtk_text_iter_backward_char (&location);
 846                 tag = iter_has_recipient (&location);
 847                 if (tag != NULL)
 848                         select_tag_of_iter (&location, tag);
 849                 else {
 850                         gtk_text_buffer_place_cursor (buffer, &location);
 851                 }
 852                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 853
 854                 return TRUE;
 855         }
 856         break;
 857         case GDK_Right:
 858         case GDK_KP_Right:
 859         {
 860                 gboolean cursor_moved = FALSE;
 861
 862                 tag = iter_has_recipient (&location);
 863                 if ((tag != NULL)&&(!gtk_text_iter_ends_tag (&location, tag))) {
 864                         gtk_text_iter_forward_to_tag_toggle (&location, tag);
 865                         while (gtk_text_iter_get_char (&location) == '\n')
 866                                 gtk_text_iter_forward_char (&location);
 867                         gtk_text_buffer_place_cursor (buffer, &location);
 868                         gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 869                         return TRUE;
 870                 }
 871
 872                 while (gtk_text_iter_get_char (&location) == '\n') {
 873                         gtk_text_iter_forward_char (&location);
 874                         cursor_moved = TRUE;
 875                 }
 876                 if (!cursor_moved)
 877                         gtk_text_iter_forward_char (&location);
 878                 while (gtk_text_iter_get_char (&location) == '\n') {
 879                         gtk_text_iter_forward_char (&location);
 880                         cursor_moved = TRUE;
 881                 }
 882
 883                 tag = iter_has_recipient (&location);
 884                 if (tag != NULL)
 885                         select_tag_of_iter (&location, tag);
 886                 else
 887                         gtk_text_buffer_place_cursor (buffer, &location);
 888                 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (text_view), insert, 0.0, FALSE, 0.0, 1.0);
 889                 return TRUE;
 890         }
 891         break;
 892         case GDK_Return:
 893         case GDK_KP_Enter:
 894         {
 895                 gint insert_offset, selection_offset;
 896                 insert_offset = gtk_text_iter_get_offset (&location);
 897                 selection_offset = gtk_text_iter_get_offset (&selection_loc);
 898                 g_signal_handlers_block_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 899                 if (selection_offset > insert_offset)
 900                         location = selection_loc;
 901                 tag = iter_has_recipient (&location);
 902                 if (tag != NULL) {
 903                         gtk_text_buffer_get_end_iter (buffer, &location);
 904                         gtk_text_buffer_place_cursor (buffer, &location);
 905                         if ((iter_previous_char (&location) != ';')&&(iter_previous_char (&location) != ','))
 906                                 gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
 907                         gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
 908                 } else {
 909                         gunichar prev_char = iter_previous_char (&location);
 910                         if ((gtk_text_iter_is_start (&location))||(prev_char == '\n')
 911                             ||(prev_char == ';')||(prev_char == ','))
 912                                 g_signal_emit_by_name (G_OBJECT (editor), "open-addressbook");
 913                         else {
 914                                 if ((prev_char != ';') && (prev_char != ','))
 915                                         gtk_text_buffer_insert_at_cursor (buffer, ";", -1);
 916                                 gtk_text_buffer_insert_at_cursor (buffer, "\n", -1);
 917                         }
 918                 }
 919                 g_signal_handlers_unblock_by_func (buffer, modest_recpt_editor_on_insert_text, editor);
 920                 return TRUE;
 921         }
 922         break;
 923         case GDK_BackSpace:
 924         {
 925                 #if GTK_CHECK_VERSION(2, 10, 0) /* gtk_text_buffer_get_has_selection is only available in GTK+ 2.10 */
 926                 if (gtk_text_buffer_get_has_selection (buffer)) {
 927                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 928                         return TRUE;
 929                 }
 930                 #else
 931                 if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
 932                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 933                         return TRUE;
 934                 }
 935                 #endif
 936
 937                 tag = prev_iter_has_recipient (&location);
 938                 if (tag != NULL) {
 939                         GtkTextIter iter_in_tag;
 940                         iter_in_tag = location;
 941                         gtk_text_iter_backward_char (&iter_in_tag);
 942                         select_tag_of_iter (&iter_in_tag, tag);
 943                         gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
 944                         return TRUE;
 945                 }
 946                 return FALSE;
 947         }
 948         break;
 949         default:
 950                 return FALSE;
 951         }
 952 }
 953
 954 static void
 955 modest_recpt_editor_move_cursor_to_end (ModestRecptEditor *editor)
 956 {
 957         ModestRecptEditorPrivate *priv = MODEST_RECPT_EDITOR_GET_PRIVATE (editor);
 958 #ifdef MODEST_TOOLKIT_HILDON2
 959         GtkTextBuffer *buffer = hildon_text_view_get_buffer (HILDON_TEXT_VIEW (priv->text_view));
 960 #else
 961         GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->text_view));
 962 #endif
 963         GtkTextIter start, end;
 964
 965         gtk_text_buffer_get_end_iter (buffer, &start);
 966         end = start;
 967         gtk_text_buffer_select_range (buffer, &start, &end);
 968
 969
 970 }
 971
 972 void
 973 modest_recpt_editor_grab_focus (ModestRecptEditor *recpt_editor)
 974 {
 975         ModestRecptEditorPrivate *priv;
 976
 977         g_return_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor));
 978         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 979
 980         if (GTK_WIDGET_VISIBLE (recpt_editor)) {
 981                 gtk_widget_grab_focus (priv->text_view);
 982         }
 983 }
 984
 985 gboolean
 986 modest_recpt_editor_has_focus (ModestRecptEditor *recpt_editor)
 987 {
 988         ModestRecptEditorPrivate *priv;
 989
 990         g_return_val_if_fail (MODEST_IS_RECPT_EDITOR (recpt_editor), FALSE);
 991         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (recpt_editor);
 992
 993         return GTK_WIDGET_VISIBLE (priv->text_view) &&
 994                 gtk_widget_is_focus (priv->text_view);
 995 }
 996
 997 static void
 998 modest_recpt_editor_finalize (GObject *object)
 999 {
1000         ModestRecptEditorPrivate *priv;
1001         priv = MODEST_RECPT_EDITOR_GET_PRIVATE (object);
1002
1003         if (g_signal_handler_is_connected (object, priv->on_mark_set_handler))
1004                 g_signal_handler_disconnect (object, priv->on_mark_set_handler);
1005         priv->on_mark_set_handler = 0;
1006
1007         if (priv->recipients) {
1008                 g_free (priv->recipients);
1009                 priv->recipients = NULL;
1010         }
1011
1012         (*parent_class->finalize) (object);
1013
1014         return;
1015 }
1016
1017 static void
1018 modest_recpt_editor_class_init (ModestRecptEditorClass *klass)
1019 {
1020         GObjectClass *object_class;
1021         GtkWidgetClass *widget_class;
1022
1023         parent_class = g_type_class_peek_parent (klass);
1024         object_class = (GObjectClass*) klass;
1025         widget_class = GTK_WIDGET_CLASS (klass);
1026
1027         object_class->finalize = modest_recpt_editor_finalize;
1028
1029         g_type_class_add_private (object_class, sizeof (ModestRecptEditorPrivate));
1030
1031         signals[OPEN_ADDRESSBOOK_SIGNAL] =
1032                 g_signal_new ("open-addressbook",
1033                               G_TYPE_FROM_CLASS (object_class),
1034                               G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
1035                               G_STRUCT_OFFSET (ModestRecptEditorClass, open_addressbook),
1036                               NULL, NULL,
1037                               g_cclosure_marshal_VOID__VOID,
1038                               G_TYPE_NONE, 0);
1039
1040         return;
1041 }
1042
1043 GType
1044 modest_recpt_editor_get_type (void)
1045 {
1046         static GType type = 0;
1047
1048         if (G_UNLIKELY(type == 0))
1049         {
1050                 static const GTypeInfo info =
1051                 {
1052                   sizeof (ModestRecptEditorClass),
1053                   NULL,   /* base_init */
1054                   NULL,   /* base_finalize */
1055                   (GClassInitFunc) modest_recpt_editor_class_init,   /* class_init */
1056                   NULL,   /* class_finalize */
1057                   NULL,   /* class_data */
1058                   sizeof (ModestRecptEditor),
1059                   0,      /* n_preallocs */
1060                   modest_recpt_editor_instance_init    /* instance_init */
1061                 };
1062
1063                 type = g_type_register_static (GTK_TYPE_HBOX,
1064                         "ModestRecptEditor",
1065                         &info, 0);
1066
1067         }
1068
1069         return type;
1070 }