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chat_view_append_message: take a should_highlight argument
[empathy-mirror.git] / libempathy-gtk / empathy-chat-text-view.c
blob60d642ccb7bb84c9e7c1f0175980023f4eb3f978
1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
2 /*
3 * Copyright (C) 2002-2007 Imendio AB
4 * Copyright (C) 2008 Collabora Ltd.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation; either version 2 of the
9 * License, or (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public
17 * License along with this program; if not, write to the
18 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
19 * Boston, MA 02110-1301 USA
20 *
21 * Authors: Mikael Hallendal <micke@imendio.com>
22 * Richard Hult <richard@imendio.com>
23 * Martyn Russell <martyn@imendio.com>
24 * Xavier Claessens <xclaesse@gmail.com>
25 */
26
27 #include "config.h"
28
29 #include <sys/types.h>
30 #include <string.h>
31 #include <time.h>
32
33 #include <glib/gi18n-lib.h>
34 #include <gtk/gtk.h>
35
36 #include <telepathy-glib/util.h>
37
38 #include <libempathy/empathy-gsettings.h>
39 #include <libempathy/empathy-utils.h>
40
41 #include "empathy-chat-text-view.h"
42 #include "empathy-chat.h"
43 #include "empathy-ui-utils.h"
44 #include "empathy-smiley-manager.h"
45 #include "empathy-string-parser.h"
46
47 #define DEBUG_FLAG EMPATHY_DEBUG_CHAT
48 #include <libempathy/empathy-debug.h>
49
50 /* Number of seconds between timestamps when using normal mode, 5 minutes. */
51 #define TIMESTAMP_INTERVAL (5 * G_TIME_SPAN_MINUTE)
52
53 #define MAX_LINES 800
54 #define MAX_SCROLL_TIME 0.4 /* seconds */
55 #define SCROLL_DELAY 33 /* milliseconds */
56
57 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyChatTextView)
58
59 typedef struct {
60 GtkTextBuffer *buffer;
61 guint scroll_timeout;
62 GTimer *scroll_time;
63 GtkTextMark *find_mark_previous;
64 GtkTextMark *find_mark_next;
65 gboolean find_wrapped;
66 gboolean find_last_direction;
67 EmpathyContact *last_contact;
68 gint64 last_timestamp;
69 gboolean allow_scrolling;
70 guint notify_system_fonts_id;
71 GSettings *gsettings_desktop;
72 GSettings *gsettings_chat;
73 EmpathySmileyManager *smiley_manager;
74 gboolean only_if_date;
75 } EmpathyChatTextViewPriv;
76
77 static void chat_text_view_iface_init (EmpathyChatViewIface *iface);
78
79 static void chat_text_view_copy_clipboard (EmpathyChatView *view);
80
81 G_DEFINE_TYPE_WITH_CODE (EmpathyChatTextView, empathy_chat_text_view,
82 GTK_TYPE_TEXT_VIEW,
83 G_IMPLEMENT_INTERFACE (EMPATHY_TYPE_CHAT_VIEW,
84 chat_text_view_iface_init));
85
86 enum {
87 PROP_0,
88 PROP_LAST_CONTACT,
89 PROP_ONLY_IF_DATE
90 };
91
92 static gboolean
93 chat_text_view_url_event_cb (GtkTextTag *tag,
94 GObject *object,
95 GdkEvent *event,
96 GtkTextIter *iter,
97 EmpathyChatTextView *view)
98 {
99 EmpathyChatTextViewPriv *priv;
100 GtkTextIter start, end;
101 gchar *str;
102
103 priv = GET_PRIV (view);
104
105 /* If the link is being selected, don't do anything. */
106 gtk_text_buffer_get_selection_bounds (priv->buffer, &start, &end);
107 if (gtk_text_iter_get_offset (&start) != gtk_text_iter_get_offset (&end)) {
108 return FALSE;
109 }
110
111 if (event->type == GDK_BUTTON_RELEASE && event->button.button == 1) {
112 start = end = *iter;
113
114 if (gtk_text_iter_backward_to_tag_toggle (&start, tag) &&
115 gtk_text_iter_forward_to_tag_toggle (&end, tag)) {
116 str = gtk_text_buffer_get_text (priv->buffer,
117 &start,
118 &end,
119 FALSE);
120
121 empathy_url_show (GTK_WIDGET (view), str);
122 g_free (str);
123 }
124 }
125
126 return FALSE;
127 }
128
129 static gboolean
130 chat_text_view_event_cb (EmpathyChatTextView *view,
131 GdkEventMotion *event,
132 GtkTextTag *tag)
133 {
134 static GdkCursor *hand = NULL;
135 static GdkCursor *beam = NULL;
136 GtkTextWindowType type;
137 GtkTextIter iter;
138 GdkWindow *win;
139 gint x, y, buf_x, buf_y;
140
141 type = gtk_text_view_get_window_type (GTK_TEXT_VIEW (view),
142 event->window);
143
144 if (type != GTK_TEXT_WINDOW_TEXT) {
145 return FALSE;
146 }
147
148 /* Get where the pointer really is. */
149 win = gtk_text_view_get_window (GTK_TEXT_VIEW (view), type);
150 if (!win) {
151 return FALSE;
152 }
153
154 gdk_window_get_device_position (win, event->device, &x, &y, NULL);
155
156 /* Get the iter where the cursor is at */
157 gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view), type,
158 x, y,
159 &buf_x, &buf_y);
160
161 gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (view),
162 &iter,
163 buf_x, buf_y);
164
165 if (gtk_text_iter_has_tag (&iter, tag)) {
166 if (!hand) {
167 hand = gdk_cursor_new (GDK_HAND2);
168 beam = gdk_cursor_new (GDK_XTERM);
169 }
170 gdk_window_set_cursor (win, hand);
171 } else {
172 if (!beam) {
173 beam = gdk_cursor_new (GDK_XTERM);
174 }
175 gdk_window_set_cursor (win, beam);
176 }
177
178 return FALSE;
179 }
180
181 static void
182 chat_text_view_create_tags (EmpathyChatTextView *view)
183 {
184 EmpathyChatTextViewPriv *priv = GET_PRIV (view);
185 GtkTextTag *tag;
186
187 gtk_text_buffer_create_tag (priv->buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_CUT, NULL);
188 gtk_text_buffer_create_tag (priv->buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_HIGHLIGHT, NULL);
189 gtk_text_buffer_create_tag (priv->buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_SPACING, NULL);
190 gtk_text_buffer_create_tag (priv->buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_TIME, NULL);
191 gtk_text_buffer_create_tag (priv->buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_ACTION, NULL);
192 gtk_text_buffer_create_tag (priv->buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_BODY, NULL);
193 gtk_text_buffer_create_tag (priv->buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_EVENT, NULL);
194
195 tag = gtk_text_buffer_create_tag (priv->buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_LINK, NULL);
196 g_signal_connect (tag, "event",
197 G_CALLBACK (chat_text_view_url_event_cb),
198 view);
199
200 g_signal_connect (view, "motion-notify-event",
201 G_CALLBACK (chat_text_view_event_cb),
202 tag);
203 }
204
205 static void
206 chat_text_view_system_font_update (EmpathyChatTextView *view)
207 {
208 EmpathyChatTextViewPriv *priv = GET_PRIV (view);
209 PangoFontDescription *font_description = NULL;
210 gchar *font_name;
211
212 font_name = g_settings_get_string (priv->gsettings_desktop,
213 EMPATHY_PREFS_DESKTOP_INTERFACE_DOCUMENT_FONT_NAME);
214
215 if (font_name != NULL) {
216 font_description = pango_font_description_from_string (font_name);
217 g_free (font_name);
218 } else {
219 font_description = NULL;
220 }
221
222 gtk_widget_override_font (GTK_WIDGET (view), font_description);
223
224 if (font_description) {
225 pango_font_description_free (font_description);
226 }
227 }
228
229 static void
230 chat_text_view_notify_system_font_cb (GSettings *gsettings,
231 const gchar *key,
232 EmpathyChatTextView *self)
233 {
234 chat_text_view_system_font_update (self);
235 }
236
237 static void
238 chat_text_view_open_address_cb (GtkMenuItem *menuitem, const gchar *url)
239 {
240 empathy_url_show (GTK_WIDGET (menuitem), url);
241 }
242
243 static void
244 chat_text_view_copy_address_cb (GtkMenuItem *menuitem, const gchar *url)
245 {
246 GtkClipboard *clipboard;
247
248 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
249 gtk_clipboard_set_text (clipboard, url, -1);
250
251 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
252 gtk_clipboard_set_text (clipboard, url, -1);
253 }
254
255 static void
256 chat_text_view_populate_popup (EmpathyChatTextView *view,
257 GtkMenu *menu,
258 gpointer user_data)
259 {
260 EmpathyChatTextViewPriv *priv;
261 GtkTextTagTable *table;
262 GtkTextTag *tag;
263 gint x, y;
264 GtkTextIter iter, start, end;
265 GtkWidget *item;
266 gchar *str = NULL;
267
268 priv = GET_PRIV (view);
269
270 /* Clear menu item */
271 if (gtk_text_buffer_get_char_count (priv->buffer) > 0) {
272 item = gtk_separator_menu_item_new ();
273 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
274 gtk_widget_show (item);
275
276 item = gtk_image_menu_item_new_from_stock (GTK_STOCK_CLEAR, NULL);
277 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
278 gtk_widget_show (item);
279
280 g_signal_connect_swapped (item, "activate",
281 G_CALLBACK (empathy_chat_view_clear),
282 view);
283 }
284
285 /* Link context menu items */
286 table = gtk_text_buffer_get_tag_table (priv->buffer);
287 tag = gtk_text_tag_table_lookup (table, EMPATHY_CHAT_TEXT_VIEW_TAG_LINK);
288
289 gdk_window_get_device_position (gtk_widget_get_window (GTK_WIDGET (view)),
290 gdk_device_manager_get_client_pointer (gdk_display_get_device_manager (
291 gtk_widget_get_display (GTK_WIDGET (view)))), &x, &y, NULL);
292
293 gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view),
294 GTK_TEXT_WINDOW_WIDGET,
295 x, y,
296 &x, &y);
297
298 gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (view), &iter, x, y);
299
300 start = end = iter;
301
302 if (gtk_text_iter_backward_to_tag_toggle (&start, tag) &&
303 gtk_text_iter_forward_to_tag_toggle (&end, tag)) {
304 str = gtk_text_buffer_get_text (priv->buffer,
305 &start, &end, FALSE);
306 }
307
308 if (EMP_STR_EMPTY (str)) {
309 g_free (str);
310 return;
311 }
312
313 /* NOTE: Set data just to get the string freed when not needed. */
314 g_object_set_data_full (G_OBJECT (menu),
315 "url", str,
316 (GDestroyNotify) g_free);
317
318 item = gtk_separator_menu_item_new ();
319 gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
320 gtk_widget_show (item);
321
322 item = gtk_menu_item_new_with_mnemonic (_("_Copy Link Address"));
323 g_signal_connect (item, "activate",
324 G_CALLBACK (chat_text_view_copy_address_cb),
325 str);
326 gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
327 gtk_widget_show (item);
328
329 item = gtk_menu_item_new_with_mnemonic (_("_Open Link"));
330 g_signal_connect (item, "activate",
331 G_CALLBACK (chat_text_view_open_address_cb),
332 str);
333 gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
334 gtk_widget_show (item);
335 }
336
337 static gboolean
338 chat_text_view_is_scrolled_down (EmpathyChatTextView *view)
339 {
340 GtkAdjustment *vadj;
341 gdouble value;
342 gdouble upper;
343 gdouble page_size;
344
345 vadj = gtk_scrollable_get_vadjustment (GTK_SCROLLABLE (view));
346 value = gtk_adjustment_get_value (vadj);
347 upper = gtk_adjustment_get_upper (vadj);
348 page_size = gtk_adjustment_get_page_size (vadj);
349
350 if (value < upper - page_size) {
351 return FALSE;
352 }
353
354 return TRUE;
355 }
356
357 static void
358 chat_text_view_maybe_trim_buffer (EmpathyChatTextView *view)
359 {
360 EmpathyChatTextViewPriv *priv;
361 GtkTextIter top, bottom;
362 gint line;
363 gint remove_;
364 GtkTextTagTable *table;
365 GtkTextTag *tag;
366
367 priv = GET_PRIV (view);
368
369 gtk_text_buffer_get_end_iter (priv->buffer, &bottom);
370 line = gtk_text_iter_get_line (&bottom);
371 if (line < MAX_LINES) {
372 return;
373 }
374
375 remove_ = line - MAX_LINES;
376 gtk_text_buffer_get_start_iter (priv->buffer, &top);
377
378 bottom = top;
379 if (!gtk_text_iter_forward_lines (&bottom, remove_)) {
380 return;
381 }
382
383 /* Track backwords to a place where we can safely cut, we don't do it in
384 * the middle of a tag.
385 */
386 table = gtk_text_buffer_get_tag_table (priv->buffer);
387 tag = gtk_text_tag_table_lookup (table, EMPATHY_CHAT_TEXT_VIEW_TAG_CUT);
388 if (!tag) {
389 return;
390 }
391
392 if (!gtk_text_iter_forward_to_tag_toggle (&bottom, tag)) {
393 return;
394 }
395
396 if (!gtk_text_iter_equal (&top, &bottom)) {
397 gtk_text_buffer_delete (priv->buffer, &top, &bottom);
398 }
399 }
400
401 static void
402 chat_text_view_append_timestamp (EmpathyChatTextView *view,
403 gint64 timestamp,
404 gboolean show_date)
405 {
406 EmpathyChatTextViewPriv *priv = GET_PRIV (view);
407 GtkTextIter iter;
408 gchar *tmp;
409 GString *str;
410
411 str = g_string_new ("- ");
412
413 /* Append date if needed */
414 if (show_date) {
415 /* Translators: timestamp displayed between conversations in
416 * chat windows (strftime format string) */
417 tmp = empathy_time_to_string_utc (timestamp, _("%A %B %d %Y"));
418 g_string_append (str, tmp);
419 g_string_append (str, ", ");
420 g_free (tmp);
421 }
422
423 /* Append time */
424 tmp = empathy_time_to_string_local (timestamp, EMPATHY_TIME_FORMAT_DISPLAY_SHORT);
425 g_string_append (str, tmp);
426 g_free (tmp);
427
428 g_string_append (str, " -\n");
429
430 /* Insert the string in the buffer */
431 empathy_chat_text_view_append_spacing (view);
432 gtk_text_buffer_get_end_iter (priv->buffer, &iter);
433 gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
434 &iter,
435 str->str, -1,
436 EMPATHY_CHAT_TEXT_VIEW_TAG_TIME,
437 NULL);
438
439 g_string_free (str, TRUE);
440 }
441
442 static void
443 chat_text_maybe_append_date_and_time (EmpathyChatTextView *view,
444 gint64 timestamp)
445 {
446 EmpathyChatTextViewPriv *priv = GET_PRIV (view);
447 GDateTime *date, *last_date;
448 gboolean append_date = FALSE;
449 gboolean append_time = FALSE;
450 GTimeSpan delta;
451
452 /* Get the date from last message */
453 last_date = g_date_time_new_from_unix_utc (priv->last_timestamp);
454
455 /* Get the date of the message we are appending */
456 date = g_date_time_new_from_unix_utc (timestamp);
457
458 delta = g_date_time_difference (date, last_date);
459 /* If last message was from another day we append date and time */
460 if (delta >= G_TIME_SPAN_DAY) {
461 append_date = TRUE;
462 append_time = TRUE;
463 }
464
465 g_date_time_unref (last_date);
466 g_date_time_unref (date);
467
468 /* If last message is 'old' append the time */
469 if (delta >= TIMESTAMP_INTERVAL) {
470 append_time = TRUE;
471 }
472
473 if (append_date || (!priv->only_if_date && append_time)) {
474 chat_text_view_append_timestamp (view, timestamp, append_date);
475 }
476 }
477
478 static void
479 chat_text_view_size_allocate (GtkWidget *widget,
480 GtkAllocation *alloc)
481 {
482 gboolean down;
483
484 down = chat_text_view_is_scrolled_down (EMPATHY_CHAT_TEXT_VIEW (widget));
485
486 GTK_WIDGET_CLASS (empathy_chat_text_view_parent_class)->size_allocate (widget, alloc);
487
488 if (down) {
489 GtkAdjustment *adj;
490
491 adj = gtk_scrollable_get_vadjustment (GTK_SCROLLABLE (widget));
492 gtk_adjustment_set_value (adj,
493 gtk_adjustment_get_upper (adj) -
494 gtk_adjustment_get_page_size (adj));
495 }
496 }
497
498 static gboolean
499 chat_text_view_drag_motion (GtkWidget *widget,
500 GdkDragContext *context,
501 gint x,
502 gint y,
503 guint time_)
504 {
505 /* Don't handle drag motion, since we don't want the view to scroll as
506 * the result of dragging something across it. */
507
508 return FALSE;
509 }
510
511 static void
512 chat_text_view_get_property (GObject *object,
513 guint param_id,
514 GValue *value,
515 GParamSpec *pspec)
516 {
517 EmpathyChatTextViewPriv *priv = GET_PRIV (object);
518
519 switch (param_id) {
520 case PROP_LAST_CONTACT:
521 g_value_set_object (value, priv->last_contact);
522 break;
523 case PROP_ONLY_IF_DATE:
524 g_value_set_boolean (value, priv->only_if_date);
525 break;
526 default:
527 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
528 break;
529 };
530 }
531
532 static void
533 chat_text_view_set_property (GObject *object,
534 guint param_id,
535 const GValue *value,
536 GParamSpec *pspec)
537 {
538 EmpathyChatTextViewPriv *priv = GET_PRIV (object);
539
540 switch (param_id) {
541 case PROP_ONLY_IF_DATE:
542 priv->only_if_date = g_value_get_boolean (value);
543 break;
544 default:
545 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
546 break;
547 };
548 }
549
550 static void
551 chat_text_view_finalize (GObject *object)
552 {
553 EmpathyChatTextView *view;
554 EmpathyChatTextViewPriv *priv;
555
556 view = EMPATHY_CHAT_TEXT_VIEW (object);
557 priv = GET_PRIV (view);
558
559 DEBUG ("%p", object);
560
561 g_object_unref (priv->gsettings_chat);
562 g_object_unref (priv->gsettings_desktop);
563
564 if (priv->last_contact) {
565 g_object_unref (priv->last_contact);
566 }
567 if (priv->scroll_time) {
568 g_timer_destroy (priv->scroll_time);
569 }
570 if (priv->scroll_timeout) {
571 g_source_remove (priv->scroll_timeout);
572 }
573 g_object_unref (priv->smiley_manager);
574
575 G_OBJECT_CLASS (empathy_chat_text_view_parent_class)->finalize (object);
576 }
577
578 static void
579 text_view_copy_clipboard (GtkTextView *text_view)
580 {
581 chat_text_view_copy_clipboard (EMPATHY_CHAT_VIEW (text_view));
582 }
583
584 static void
585 empathy_chat_text_view_class_init (EmpathyChatTextViewClass *klass)
586 {
587 GObjectClass *object_class = G_OBJECT_CLASS (klass);
588 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
589 GtkTextViewClass *text_view_class = GTK_TEXT_VIEW_CLASS (klass);
590
591 object_class->finalize = chat_text_view_finalize;
592 object_class->get_property = chat_text_view_get_property;
593 object_class->set_property = chat_text_view_set_property;
594
595 widget_class->size_allocate = chat_text_view_size_allocate;
596 widget_class->drag_motion = chat_text_view_drag_motion;
597
598 text_view_class->copy_clipboard = text_view_copy_clipboard;
599
600 g_object_class_install_property (object_class,
601 PROP_LAST_CONTACT,
602 g_param_spec_object ("last-contact",
603 "Last contact",
604 "The sender of the last received message",
605 EMPATHY_TYPE_CONTACT,
606 G_PARAM_READABLE));
607 g_object_class_install_property (object_class,
608 PROP_ONLY_IF_DATE,
609 g_param_spec_boolean ("only-if-date",
610 "Only if date",
611 "Display timestamp only if the date changes",
612 FALSE,
613 G_PARAM_READWRITE));
614
615
616 g_type_class_add_private (object_class, sizeof (EmpathyChatTextViewPriv));
617 }
618
619 static void
620 empathy_chat_text_view_init (EmpathyChatTextView *view)
621 {
622 EmpathyChatTextViewPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (view,
623 EMPATHY_TYPE_CHAT_TEXT_VIEW, EmpathyChatTextViewPriv);
624
625 view->priv = priv;
626 priv->buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
627 priv->last_timestamp = 0;
628 priv->allow_scrolling = TRUE;
629 priv->smiley_manager = empathy_smiley_manager_dup_singleton ();
630
631 g_object_set (view,
632 "wrap-mode", GTK_WRAP_WORD_CHAR,
633 "editable", FALSE,
634 "cursor-visible", FALSE,
635 NULL);
636
637 priv->gsettings_chat = g_settings_new (EMPATHY_PREFS_CHAT_SCHEMA);
638
639 priv->gsettings_desktop = g_settings_new (
640 EMPATHY_PREFS_DESKTOP_INTERFACE_SCHEMA);
641 g_signal_connect (priv->gsettings_desktop,
642 "changed::" EMPATHY_PREFS_DESKTOP_INTERFACE_DOCUMENT_FONT_NAME,
643 G_CALLBACK (chat_text_view_notify_system_font_cb),
644 view);
645 chat_text_view_system_font_update (view);
646 chat_text_view_create_tags (view);
647
648 g_signal_connect (view,
649 "populate-popup",
650 G_CALLBACK (chat_text_view_populate_popup),
651 NULL);
652 }
653
654 static void
655 chat_text_view_scroll_stop (EmpathyChatTextView *view)
656 {
657 EmpathyChatTextViewPriv *priv = GET_PRIV (view);
658
659 g_timer_destroy (priv->scroll_time);
660 priv->scroll_time = NULL;
661
662 g_source_remove (priv->scroll_timeout);
663 priv->scroll_timeout = 0;
664 }
665
666 /* Code stolen from pidgin/gtkimhtml.c */
667 static gboolean
668 chat_text_view_scroll_cb (EmpathyChatTextView *view)
669 {
670 EmpathyChatTextViewPriv *priv;
671 GtkAdjustment *adj;
672 gdouble max_val;
673
674 priv = GET_PRIV (view);
675
676 adj = gtk_scrollable_get_vadjustment (GTK_SCROLLABLE (view));
677 max_val = gtk_adjustment_get_upper (adj) - gtk_adjustment_get_page_size (adj);
678
679 g_return_val_if_fail (priv->scroll_time != NULL, FALSE);
680
681 if (g_timer_elapsed (priv->scroll_time, NULL) > MAX_SCROLL_TIME) {
682 /* time's up. jump to the end and kill the timer */
683 gtk_adjustment_set_value (adj, max_val);
684 chat_text_view_scroll_stop (view);
685 return FALSE;
686 }
687
688 /* scroll by 1/3rd the remaining distance */
689 gtk_adjustment_set_value (adj, gtk_adjustment_get_value (adj) + ((max_val - gtk_adjustment_get_value (adj)) / 3));
690 return TRUE;
691 }
692
693 static void
694 chat_text_view_scroll_down (EmpathyChatView *view)
695 {
696 EmpathyChatTextViewPriv *priv = GET_PRIV (view);
697
698 g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
699
700 if (!priv->allow_scrolling) {
701 return;
702 }
703
704 DEBUG ("Scrolling down");
705
706 if (priv->scroll_time) {
707 g_timer_reset (priv->scroll_time);
708 } else {
709 priv->scroll_time = g_timer_new ();
710 }
711 if (!priv->scroll_timeout) {
712 priv->scroll_timeout = g_timeout_add (SCROLL_DELAY,
713 (GSourceFunc) chat_text_view_scroll_cb,
714 view);
715 }
716 }
717
718 static void
719 chat_text_view_append_message (EmpathyChatView *view,
720 EmpathyMessage *msg,
721 gboolean should_highlight)
722 {
723 EmpathyChatTextView *text_view = EMPATHY_CHAT_TEXT_VIEW (view);
724 EmpathyChatTextViewPriv *priv = GET_PRIV (text_view);
725 gboolean bottom;
726 gint64 timestamp;
727
728 g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
729 g_return_if_fail (EMPATHY_IS_MESSAGE (msg));
730
731 if (!empathy_message_get_body (msg)) {
732 return;
733 }
734
735 bottom = chat_text_view_is_scrolled_down (text_view);
736
737 chat_text_view_maybe_trim_buffer (EMPATHY_CHAT_TEXT_VIEW (view));
738
739 timestamp = empathy_message_get_timestamp (msg);
740 chat_text_maybe_append_date_and_time (text_view, timestamp);
741 if (EMPATHY_CHAT_TEXT_VIEW_GET_CLASS (view)->append_message) {
742 EMPATHY_CHAT_TEXT_VIEW_GET_CLASS (view)->append_message (text_view,
743 msg,
744 should_highlight);
745 }
746
747 if (bottom) {
748 chat_text_view_scroll_down (view);
749 }
750
751 if (priv->last_contact) {
752 g_object_unref (priv->last_contact);
753 }
754 priv->last_contact = g_object_ref (empathy_message_get_sender (msg));
755 g_object_notify (G_OBJECT (view), "last-contact");
756
757 priv->last_timestamp = timestamp;
758 }
759
760 static void
761 chat_text_view_append_event (EmpathyChatView *view,
762 const gchar *str)
763 {
764 EmpathyChatTextView *text_view = EMPATHY_CHAT_TEXT_VIEW (view);
765 EmpathyChatTextViewPriv *priv = GET_PRIV (text_view);
766 gboolean bottom;
767 GtkTextIter iter;
768 gchar *msg;
769
770
771 g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
772 g_return_if_fail (!EMP_STR_EMPTY (str));
773
774 bottom = chat_text_view_is_scrolled_down (text_view);
775 chat_text_view_maybe_trim_buffer (EMPATHY_CHAT_TEXT_VIEW (view));
776 chat_text_maybe_append_date_and_time (text_view,
777 empathy_time_get_current ());
778
779 gtk_text_buffer_get_end_iter (priv->buffer, &iter);
780 msg = g_strdup_printf (" - %s\n", str);
781 gtk_text_buffer_insert_with_tags_by_name (priv->buffer, &iter,
782 msg, -1,
783 EMPATHY_CHAT_TEXT_VIEW_TAG_EVENT,
784 NULL);
785 g_free (msg);
786
787 if (bottom) {
788 chat_text_view_scroll_down (view);
789 }
790
791 if (priv->last_contact) {
792 g_object_unref (priv->last_contact);
793 priv->last_contact = NULL;
794 g_object_notify (G_OBJECT (view), "last-contact");
795 }
796 }
797
798 static void
799 chat_text_view_scroll (EmpathyChatView *view,
800 gboolean allow_scrolling)
801 {
802 EmpathyChatTextViewPriv *priv = GET_PRIV (view);
803
804 g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
805
806 DEBUG ("Scrolling %s", allow_scrolling ? "enabled" : "disabled");
807
808 priv->allow_scrolling = allow_scrolling;
809 if (allow_scrolling) {
810 empathy_chat_view_scroll_down (view);
811 }
812 }
813
814 static gboolean
815 chat_text_view_get_has_selection (EmpathyChatView *view)
816 {
817 GtkTextBuffer *buffer;
818
819 g_return_val_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view), FALSE);
820
821 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
822
823 return gtk_text_buffer_get_has_selection (buffer);
824 }
825
826 static void
827 chat_text_view_clear (EmpathyChatView *view)
828 {
829 GtkTextBuffer *buffer;
830 EmpathyChatTextViewPriv *priv;
831
832 g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
833
834 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
835 gtk_text_buffer_set_text (buffer, "", -1);
836
837 /* We set these back to the initial values so we get
838 * timestamps when clearing the window to know when
839 * conversations start.
840 */
841 priv = GET_PRIV (view);
842
843 priv->last_timestamp = 0;
844 if (priv->last_contact) {
845 g_object_unref (priv->last_contact);
846 priv->last_contact = NULL;
847 }
848 }
849
850 static gboolean
851 chat_text_view_find_previous (EmpathyChatView *view,
852 const gchar *search_criteria,
853 gboolean new_search,
854 gboolean match_case)
855 {
856 EmpathyChatTextViewPriv *priv;
857 GtkTextBuffer *buffer;
858 GtkTextIter iter_at_mark;
859 GtkTextIter iter_match_start;
860 GtkTextIter iter_match_end;
861 gboolean found;
862 gboolean from_start = FALSE;
863
864 g_return_val_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view), FALSE);
865 g_return_val_if_fail (search_criteria != NULL, FALSE);
866
867 priv = GET_PRIV (view);
868
869 buffer = priv->buffer;
870
871 if (EMP_STR_EMPTY (search_criteria)) {
872 if (priv->find_mark_previous) {
873 gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
874
875 gtk_text_buffer_move_mark (buffer,
876 priv->find_mark_previous,
877 &iter_at_mark);
878 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
879 priv->find_mark_previous,
880 0.0,
881 TRUE,
882 0.0,
883 0.0);
884 gtk_text_buffer_select_range (buffer,
885 &iter_at_mark,
886 &iter_at_mark);
887 }
888
889 return FALSE;
890 }
891
892 if (new_search) {
893 from_start = TRUE;
894 }
895
896 if (!new_search && priv->find_mark_previous) {
897 gtk_text_buffer_get_iter_at_mark (buffer,
898 &iter_at_mark,
899 priv->find_mark_previous);
900 } else {
901 gtk_text_buffer_get_end_iter (buffer, &iter_at_mark);
902 from_start = TRUE;
903 }
904
905 priv->find_last_direction = FALSE;
906
907 /* Use the standard GTK+ method for case sensitive searches. It can't do
908 * case insensitive searches (see bug #61852), so keep the custom method
909 * around for case insensitive searches. */
910 if (match_case) {
911 found = gtk_text_iter_backward_search (&iter_at_mark,
912 search_criteria,
913 0, /* no text search flags, we want exact matches */
914 &iter_match_start,
915 &iter_match_end,
916 NULL);
917 } else {
918 found = empathy_text_iter_backward_search (&iter_at_mark,
919 search_criteria,
920 &iter_match_start,
921 &iter_match_end,
922 NULL);
923 }
924
925 if (!found) {
926 gboolean result = FALSE;
927
928 if (from_start) {
929 return result;
930 }
931
932 /* Here we wrap around. */
933 if (!new_search && !priv->find_wrapped) {
934 priv->find_wrapped = TRUE;
935 result = chat_text_view_find_previous (view,
936 search_criteria,
937 FALSE,
938 match_case);
939 priv->find_wrapped = FALSE;
940 }
941
942 return result;
943 }
944
945 /* Set new mark and show on screen */
946 if (!priv->find_mark_previous) {
947 priv->find_mark_previous = gtk_text_buffer_create_mark (buffer, NULL,
948 &iter_match_start,
949 TRUE);
950 } else {
951 gtk_text_buffer_move_mark (buffer,
952 priv->find_mark_previous,
953 &iter_match_start);
954 }
955
956 if (!priv->find_mark_next) {
957 priv->find_mark_next = gtk_text_buffer_create_mark (buffer, NULL,
958 &iter_match_end,
959 TRUE);
960 } else {
961 gtk_text_buffer_move_mark (buffer,
962 priv->find_mark_next,
963 &iter_match_end);
964 }
965
966 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
967 priv->find_mark_previous,
968 0.0,
969 TRUE,
970 0.5,
971 0.5);
972
973 gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &iter_match_start);
974 gtk_text_buffer_move_mark_by_name (buffer, "insert", &iter_match_end);
975
976 return TRUE;
977 }
978
979 static gboolean
980 chat_text_view_find_next (EmpathyChatView *view,
981 const gchar *search_criteria,
982 gboolean new_search,
983 gboolean match_case)
984 {
985 EmpathyChatTextViewPriv *priv;
986 GtkTextBuffer *buffer;
987 GtkTextIter iter_at_mark;
988 GtkTextIter iter_match_start;
989 GtkTextIter iter_match_end;
990 gboolean found;
991 gboolean from_start = FALSE;
992
993 g_return_val_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view), FALSE);
994 g_return_val_if_fail (search_criteria != NULL, FALSE);
995
996 priv = GET_PRIV (view);
997
998 buffer = priv->buffer;
999
1000 if (EMP_STR_EMPTY (search_criteria)) {
1001 if (priv->find_mark_next) {
1002 gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
1003
1004 gtk_text_buffer_move_mark (buffer,
1005 priv->find_mark_next,
1006 &iter_at_mark);
1007 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
1008 priv->find_mark_next,
1009 0.0,
1010 TRUE,
1011 0.0,
1012 0.0);
1013 gtk_text_buffer_select_range (buffer,
1014 &iter_at_mark,
1015 &iter_at_mark);
1016 }
1017
1018 return FALSE;
1019 }
1020
1021 if (new_search) {
1022 from_start = TRUE;
1023 }
1024
1025 if (!new_search && priv->find_mark_next) {
1026 gtk_text_buffer_get_iter_at_mark (buffer,
1027 &iter_at_mark,
1028 priv->find_mark_next);
1029 } else {
1030 gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
1031 from_start = TRUE;
1032 }
1033
1034 priv->find_last_direction = TRUE;
1035
1036 /* Use the standard GTK+ method for case sensitive searches. It can't do
1037 * case insensitive searches (see bug #61852), so keep the custom method
1038 * around for case insensitive searches. */
1039 if (match_case) {
1040 found = gtk_text_iter_forward_search (&iter_at_mark,
1041 search_criteria,
1042 0,
1043 &iter_match_start,
1044 &iter_match_end,
1045 NULL);
1046 } else {
1047 found = empathy_text_iter_forward_search (&iter_at_mark,
1048 search_criteria,
1049 &iter_match_start,
1050 &iter_match_end,
1051 NULL);
1052 }
1053
1054 if (!found) {
1055 gboolean result = FALSE;
1056
1057 if (from_start) {
1058 return result;
1059 }
1060
1061 /* Here we wrap around. */
1062 if (!new_search && !priv->find_wrapped) {
1063 priv->find_wrapped = TRUE;
1064 result = chat_text_view_find_next (view,
1065 search_criteria,
1066 FALSE,
1067 match_case);
1068 priv->find_wrapped = FALSE;
1069 }
1070
1071 return result;
1072 }
1073
1074 /* Set new mark and show on screen */
1075 if (!priv->find_mark_next) {
1076 priv->find_mark_next = gtk_text_buffer_create_mark (buffer, NULL,
1077 &iter_match_end,
1078 TRUE);
1079 } else {
1080 gtk_text_buffer_move_mark (buffer,
1081 priv->find_mark_next,
1082 &iter_match_end);
1083 }
1084
1085 if (!priv->find_mark_previous) {
1086 priv->find_mark_previous = gtk_text_buffer_create_mark (buffer, NULL,
1087 &iter_match_start,
1088 TRUE);
1089 } else {
1090 gtk_text_buffer_move_mark (buffer,
1091 priv->find_mark_previous,
1092 &iter_match_start);
1093 }
1094
1095 gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
1096 priv->find_mark_next,
1097 0.0,
1098 TRUE,
1099 0.5,
1100 0.5);
1101
1102 gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &iter_match_start);
1103 gtk_text_buffer_move_mark_by_name (buffer, "insert", &iter_match_end);
1104
1105 return TRUE;
1106 }
1107
1108 static void
1109 chat_text_view_find_abilities (EmpathyChatView *view,
1110 const gchar *search_criteria,
1111 gboolean match_case,
1112 gboolean *can_do_previous,
1113 gboolean *can_do_next)
1114 {
1115 EmpathyChatTextViewPriv *priv;
1116 GtkTextBuffer *buffer;
1117 GtkTextIter iter_at_mark;
1118 GtkTextIter iter_match_start;
1119 GtkTextIter iter_match_end;
1120
1121 g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
1122 g_return_if_fail (search_criteria != NULL);
1123 g_return_if_fail (can_do_previous != NULL && can_do_next != NULL);
1124
1125 priv = GET_PRIV (view);
1126
1127 buffer = priv->buffer;
1128
1129 if (can_do_previous) {
1130 if (priv->find_mark_previous) {
1131 gtk_text_buffer_get_iter_at_mark (buffer,
1132 &iter_at_mark,
1133 priv->find_mark_previous);
1134 } else {
1135 gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
1136 }
1137
1138 if (match_case) {
1139 *can_do_previous = gtk_text_iter_backward_search (&iter_at_mark,
1140 search_criteria,
1141 0,
1142 &iter_match_start,
1143 &iter_match_end,
1144 NULL);
1145 } else {
1146 *can_do_previous = empathy_text_iter_backward_search (&iter_at_mark,
1147 search_criteria,
1148 &iter_match_start,
1149 &iter_match_end,
1150 NULL);
1151 }
1152 }
1153
1154 if (can_do_next) {
1155 if (priv->find_mark_next) {
1156 gtk_text_buffer_get_iter_at_mark (buffer,
1157 &iter_at_mark,
1158 priv->find_mark_next);
1159 } else {
1160 gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
1161 }
1162
1163 if (match_case) {
1164 *can_do_next = gtk_text_iter_forward_search (&iter_at_mark,
1165 search_criteria,
1166 0,
1167 &iter_match_start,
1168 &iter_match_end,
1169 NULL);
1170 } else {
1171 *can_do_next = empathy_text_iter_forward_search (&iter_at_mark,
1172 search_criteria,
1173 &iter_match_start,
1174 &iter_match_end,
1175 NULL);
1176 }
1177 }
1178 }
1179
1180 static void
1181 chat_text_view_highlight (EmpathyChatView *view,
1182 const gchar *text,
1183 gboolean match_case)
1184 {
1185 GtkTextBuffer *buffer;
1186 GtkTextIter iter;
1187 GtkTextIter iter_start;
1188 GtkTextIter iter_end;
1189 GtkTextIter iter_match_start;
1190 GtkTextIter iter_match_end;
1191 gboolean found;
1192
1193 g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
1194
1195 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
1196
1197 gtk_text_buffer_get_start_iter (buffer, &iter);
1198
1199 gtk_text_buffer_get_bounds (buffer, &iter_start, &iter_end);
1200 gtk_text_buffer_remove_tag_by_name (buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_HIGHLIGHT,
1201 &iter_start,
1202 &iter_end);
1203
1204 if (EMP_STR_EMPTY (text)) {
1205 return;
1206 }
1207
1208 while (1) {
1209 if (match_case) {
1210 found = gtk_text_iter_forward_search (&iter,
1211 text,
1212 0,
1213 &iter_match_start,
1214 &iter_match_end,
1215 NULL);
1216 } else {
1217 found = empathy_text_iter_forward_search (&iter,
1218 text,
1219 &iter_match_start,
1220 &iter_match_end,
1221 NULL);
1222 }
1223 if (!found) {
1224 break;
1225 }
1226
1227 gtk_text_buffer_apply_tag_by_name (buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_HIGHLIGHT,
1228 &iter_match_start,
1229 &iter_match_end);
1230
1231 iter = iter_match_end;
1232 }
1233 }
1234
1235 static void
1236 chat_text_view_copy_clipboard (EmpathyChatView *view)
1237 {
1238 GtkTextBuffer *buffer;
1239 GtkTextIter start, iter, end;
1240 GtkClipboard *clipboard;
1241 GdkPixbuf *pixbuf;
1242 gunichar c;
1243 GtkTextChildAnchor *anchor = NULL;
1244 GString *str;
1245 GList *list;
1246 gboolean ignore_newlines = FALSE;
1247
1248 g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
1249
1250 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
1251 clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
1252
1253 if (!gtk_text_buffer_get_selection_bounds (buffer, &start, &end))
1254 return;
1255
1256 str = g_string_new ("");
1257
1258 for (iter = start; !gtk_text_iter_equal (&iter, &end); gtk_text_iter_forward_char (&iter)) {
1259 c = gtk_text_iter_get_char (&iter);
1260 /* 0xFFFC is the 'object replacement' unicode character,
1261 * it indicates the presence of a pixbuf or a widget. */
1262 if (c == 0xFFFC) {
1263 ignore_newlines = FALSE;
1264 if ((pixbuf = gtk_text_iter_get_pixbuf (&iter))) {
1265 gchar *text;
1266 text = g_object_get_data (G_OBJECT(pixbuf),
1267 "smiley_str");
1268 if (text)
1269 str = g_string_append (str, text);
1270 } else if ((anchor = gtk_text_iter_get_child_anchor (&iter))) {
1271 gchar *text;
1272 list = gtk_text_child_anchor_get_widgets (anchor);
1273 if (list) {
1274 text = g_object_get_data (G_OBJECT(list->data),
1275 "str_obj");
1276 if (text)
1277 str = g_string_append (str, text);
1278 }
1279 g_list_free (list);
1280 }
1281 } else if (c == '\n') {
1282 if (!ignore_newlines) {
1283 ignore_newlines = TRUE;
1284 str = g_string_append_unichar (str, c);
1285 }
1286 } else {
1287 ignore_newlines = FALSE;
1288 str = g_string_append_unichar (str, c);
1289 }
1290 }
1291
1292 gtk_clipboard_set_text (clipboard, str->str, str->len);
1293 g_string_free (str, TRUE);
1294 }
1295
1296 static void
1297 chat_text_view_iface_init (EmpathyChatViewIface *iface)
1298 {
1299 iface->append_message = chat_text_view_append_message;
1300 iface->append_event = chat_text_view_append_event;
1301 iface->scroll = chat_text_view_scroll;
1302 iface->scroll_down = chat_text_view_scroll_down;
1303 iface->get_has_selection = chat_text_view_get_has_selection;
1304 iface->clear = chat_text_view_clear;
1305 iface->find_previous = chat_text_view_find_previous;
1306 iface->find_next = chat_text_view_find_next;
1307 iface->find_abilities = chat_text_view_find_abilities;
1308 iface->highlight = chat_text_view_highlight;
1309 iface->copy_clipboard = chat_text_view_copy_clipboard;
1310 }
1311
1312 EmpathyContact *
1313 empathy_chat_text_view_get_last_contact (EmpathyChatTextView *view)
1314 {
1315 EmpathyChatTextViewPriv *priv = GET_PRIV (view);
1316
1317 g_return_val_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view), NULL);
1318
1319 return priv->last_contact;
1320 }
1321
1322 gint64
1323 empathy_chat_text_view_get_last_timestamp (EmpathyChatTextView *view)
1324 {
1325 EmpathyChatTextViewPriv *priv = GET_PRIV (view);
1326
1327 g_return_val_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view), 0);
1328
1329 return priv->last_timestamp;
1330 }
1331
1332 void
1333 empathy_chat_text_view_set_only_if_date (EmpathyChatTextView *view,
1334 gboolean only_if_date)
1335 {
1336 EmpathyChatTextViewPriv *priv = GET_PRIV (view);
1337
1338 g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
1339
1340 if (only_if_date != priv->only_if_date) {
1341 priv->only_if_date = only_if_date;
1342 g_object_notify (G_OBJECT (view), "only-if-date");
1343 }
1344 }
1345
1346 static void
1347 chat_text_view_replace_link (const gchar *text,
1348 gssize len,
1349 gpointer match_data,
1350 gpointer user_data)
1351 {
1352 GtkTextBuffer *buffer = GTK_TEXT_BUFFER (user_data);
1353 GtkTextIter iter;
1354
1355 gtk_text_buffer_get_end_iter (buffer, &iter);
1356 gtk_text_buffer_insert_with_tags_by_name (buffer, &iter,
1357 text, len,
1358 EMPATHY_CHAT_TEXT_VIEW_TAG_LINK,
1359 NULL);
1360 }
1361
1362 static void
1363 chat_text_view_replace_smiley (const gchar *text,
1364 gssize len,
1365 gpointer match_data,
1366 gpointer user_data)
1367 {
1368 EmpathySmileyHit *hit = match_data;
1369 GtkTextBuffer *buffer = GTK_TEXT_BUFFER (user_data);
1370 GtkTextIter iter;
1371
1372 gtk_text_buffer_get_end_iter (buffer, &iter);
1373 gtk_text_buffer_insert_pixbuf (buffer, &iter, hit->pixbuf);
1374 }
1375
1376 static void
1377 chat_text_view_replace_verbatim (const gchar *text,
1378 gssize len,
1379 gpointer match_data,
1380 gpointer user_data)
1381 {
1382 GtkTextBuffer *buffer = GTK_TEXT_BUFFER (user_data);
1383 GtkTextIter iter;
1384
1385 gtk_text_buffer_get_end_iter (buffer, &iter);
1386 gtk_text_buffer_insert (buffer, &iter, text, len);
1387 }
1388
1389 static EmpathyStringParser string_parsers[] = {
1390 {empathy_string_match_link, chat_text_view_replace_link},
1391 {empathy_string_match_all, chat_text_view_replace_verbatim},
1392 {NULL, NULL}
1393 };
1394
1395 static EmpathyStringParser string_parsers_with_smiley[] = {
1396 {empathy_string_match_link, chat_text_view_replace_link},
1397 {empathy_string_match_smiley, chat_text_view_replace_smiley},
1398 {empathy_string_match_all, chat_text_view_replace_verbatim},
1399 {NULL, NULL}
1400 };
1401
1402 void
1403 empathy_chat_text_view_append_body (EmpathyChatTextView *view,
1404 const gchar *body,
1405 const gchar *tag)
1406 {
1407 EmpathyChatTextViewPriv *priv = GET_PRIV (view);
1408 EmpathyStringParser *parsers;
1409 gboolean use_smileys;
1410 GtkTextIter start_iter;
1411 GtkTextIter iter;
1412 GtkTextMark *mark;
1413
1414 /* Check if we have to parse smileys */
1415 use_smileys = g_settings_get_boolean (priv->gsettings_chat,
1416 EMPATHY_PREFS_CHAT_SHOW_SMILEYS);
1417
1418 if (use_smileys)
1419 parsers = string_parsers_with_smiley;
1420 else
1421 parsers = string_parsers;
1422
1423 /* Create a mark at the place we'll start inserting */
1424 gtk_text_buffer_get_end_iter (priv->buffer, &start_iter);
1425 mark = gtk_text_buffer_create_mark (priv->buffer, NULL, &start_iter, TRUE);
1426
1427 /* Parse text for links/smileys and insert in the buffer */
1428 empathy_string_parser_substr (body, -1, parsers, priv->buffer);
1429
1430 /* Insert a newline after the text inserted */
1431 gtk_text_buffer_get_end_iter (priv->buffer, &iter);
1432 gtk_text_buffer_insert (priv->buffer, &iter, "\n", 1);
1433
1434 /* Apply the style to the inserted text. */
1435 gtk_text_buffer_get_iter_at_mark (priv->buffer, &start_iter, mark);
1436 gtk_text_buffer_get_end_iter (priv->buffer, &iter);
1437 gtk_text_buffer_apply_tag_by_name (priv->buffer, tag,
1438 &start_iter,
1439 &iter);
1440
1441 gtk_text_buffer_delete_mark (priv->buffer, mark);
1442 }
1443
1444 void
1445 empathy_chat_text_view_append_spacing (EmpathyChatTextView *view)
1446 {
1447 EmpathyChatTextViewPriv *priv = GET_PRIV (view);
1448 GtkTextIter iter;
1449
1450 gtk_text_buffer_get_end_iter (priv->buffer, &iter);
1451 gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
1452 &iter,
1453 "\n",
1454 -1,
1455 EMPATHY_CHAT_TEXT_VIEW_TAG_CUT,
1456 EMPATHY_CHAT_TEXT_VIEW_TAG_SPACING,
1457 NULL);
1458 }
1459
1460 GtkTextTag *
1461 empathy_chat_text_view_tag_set (EmpathyChatTextView *view,
1462 const gchar *tag_name,
1463 const gchar *first_property_name,
1464 ...)
1465 {
1466 EmpathyChatTextViewPriv *priv = GET_PRIV (view);
1467 GtkTextTag *tag;
1468 GtkTextTagTable *table;
1469 va_list list;
1470
1471 g_return_val_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view), NULL);
1472 g_return_val_if_fail (tag_name != NULL, NULL);
1473
1474 table = gtk_text_buffer_get_tag_table (priv->buffer);
1475 tag = gtk_text_tag_table_lookup (table, tag_name);
1476
1477 if (tag && first_property_name) {
1478 va_start (list, first_property_name);
1479 g_object_set_valist (G_OBJECT (tag), first_property_name, list);
1480 va_end (list);
1481 }
1482
1483 return tag;
1484 }
1485
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