/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Copyright (C) 2002-2007 Imendio AB
* Copyright (C) 2008 Collabora Ltd.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA
*
* Authors: Mikael Hallendal <micke@imendio.com>
* Richard Hult <richard@imendio.com>
* Martyn Russell <martyn@imendio.com>
* Xavier Claessens <xclaesse@gmail.com>
*/
#include "config.h"
#include <sys/types.h>
#include <string.h>
#include <time.h>
#include <glib/gi18n-lib.h>
#include <gtk/gtk.h>
#include <telepathy-glib/util.h>
#include <libempathy/empathy-gsettings.h>
#include <libempathy/empathy-utils.h>
#include "empathy-chat-text-view.h"
#include "empathy-chat.h"
#include "empathy-ui-utils.h"
#include "empathy-smiley-manager.h"
#include "empathy-string-parser.h"
#define DEBUG_FLAG EMPATHY_DEBUG_CHAT
#include <libempathy/empathy-debug.h>
/* Number of seconds between timestamps when using normal mode, 5 minutes. */
#define TIMESTAMP_INTERVAL 300
#define MAX_LINES 800
#define MAX_SCROLL_TIME 0.4 /* seconds */
#define SCROLL_DELAY 33 /* milliseconds */
#define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyChatTextView)
typedef struct {
GtkTextBuffer *buffer;
guint scroll_timeout;
GTimer *scroll_time;
GtkTextMark *find_mark_previous;
GtkTextMark *find_mark_next;
gboolean find_wrapped;
gboolean find_last_direction;
EmpathyContact *last_contact;
time_t last_timestamp;
gboolean allow_scrolling;
guint notify_system_fonts_id;
GSettings *gsettings_desktop;
GSettings *gsettings_chat;
EmpathySmileyManager *smiley_manager;
gboolean only_if_date;
} EmpathyChatTextViewPriv;
static void chat_text_view_iface_init (EmpathyChatViewIface *iface);
static void chat_text_view_copy_clipboard (EmpathyChatView *view);
G_DEFINE_TYPE_WITH_CODE (EmpathyChatTextView, empathy_chat_text_view,
GTK_TYPE_TEXT_VIEW,
G_IMPLEMENT_INTERFACE (EMPATHY_TYPE_CHAT_VIEW,
chat_text_view_iface_init));
enum {
PROP_0,
PROP_LAST_CONTACT,
PROP_ONLY_IF_DATE
};
static gboolean
chat_text_view_url_event_cb (GtkTextTag *tag,
GObject *object,
GdkEvent *event,
GtkTextIter *iter,
EmpathyChatTextView *view)
{
EmpathyChatTextViewPriv *priv;
GtkTextIter start, end;
gchar *str;
priv = GET_PRIV (view);
/* If the link is being selected, don't do anything. */
gtk_text_buffer_get_selection_bounds (priv->buffer, &start, &end);
if (gtk_text_iter_get_offset (&start) != gtk_text_iter_get_offset (&end)) {
return FALSE;
}
if (event->type == GDK_BUTTON_RELEASE && event->button.button == 1) {
start = end = *iter;
if (gtk_text_iter_backward_to_tag_toggle (&start, tag) &&
gtk_text_iter_forward_to_tag_toggle (&end, tag)) {
str = gtk_text_buffer_get_text (priv->buffer,
&start,
&end,
FALSE);
empathy_url_show (GTK_WIDGET (view), str);
g_free (str);
}
}
return FALSE;
}
static gboolean
chat_text_view_event_cb (EmpathyChatTextView *view,
GdkEventMotion *event,
GtkTextTag *tag)
{
static GdkCursor *hand = NULL;
static GdkCursor *beam = NULL;
GtkTextWindowType type;
GtkTextIter iter;
GdkWindow *win;
gint x, y, buf_x, buf_y;
type = gtk_text_view_get_window_type (GTK_TEXT_VIEW (view),
event->window);
if (type != GTK_TEXT_WINDOW_TEXT) {
return FALSE;
}
/* Get where the pointer really is. */
win = gtk_text_view_get_window (GTK_TEXT_VIEW (view), type);
if (!win) {
return FALSE;
}
gdk_window_get_pointer (win, &x, &y, NULL);
/* Get the iter where the cursor is at */
gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view), type,
x, y,
&buf_x, &buf_y);
gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (view),
&iter,
buf_x, buf_y);
if (gtk_text_iter_has_tag (&iter, tag)) {
if (!hand) {
hand = gdk_cursor_new (GDK_HAND2);
beam = gdk_cursor_new (GDK_XTERM);
}
gdk_window_set_cursor (win, hand);
} else {
if (!beam) {
beam = gdk_cursor_new (GDK_XTERM);
}
gdk_window_set_cursor (win, beam);
}
return FALSE;
}
static void
chat_text_view_create_tags (EmpathyChatTextView *view)
{
EmpathyChatTextViewPriv *priv = GET_PRIV (view);
GtkTextTag *tag;
gtk_text_buffer_create_tag (priv->buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_CUT, NULL);
gtk_text_buffer_create_tag (priv->buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_HIGHLIGHT, NULL);
gtk_text_buffer_create_tag (priv->buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_SPACING, NULL);
gtk_text_buffer_create_tag (priv->buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_TIME, NULL);
gtk_text_buffer_create_tag (priv->buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_ACTION, NULL);
gtk_text_buffer_create_tag (priv->buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_BODY, NULL);
gtk_text_buffer_create_tag (priv->buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_EVENT, NULL);
tag = gtk_text_buffer_create_tag (priv->buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_LINK, NULL);
g_signal_connect (tag, "event",
G_CALLBACK (chat_text_view_url_event_cb),
view);
g_signal_connect (view, "motion-notify-event",
G_CALLBACK (chat_text_view_event_cb),
tag);
}
static void
chat_text_view_system_font_update (EmpathyChatTextView *view)
{
EmpathyChatTextViewPriv *priv = GET_PRIV (view);
PangoFontDescription *font_description = NULL;
gchar *font_name;
font_name = g_settings_get_string (priv->gsettings_desktop,
EMPATHY_PREFS_DESKTOP_INTERFACE_DOCUMENT_FONT_NAME);
if (font_name != NULL) {
font_description = pango_font_description_from_string (font_name);
g_free (font_name);
} else {
font_description = NULL;
}
gtk_widget_override_font (GTK_WIDGET (view), font_description);
if (font_description) {
pango_font_description_free (font_description);
}
}
static void
chat_text_view_notify_system_font_cb (GSettings *gsettings,
const gchar *key,
EmpathyChatTextView *self)
{
chat_text_view_system_font_update (self);
}
static void
chat_text_view_open_address_cb (GtkMenuItem *menuitem, const gchar *url)
{
empathy_url_show (GTK_WIDGET (menuitem), url);
}
static void
chat_text_view_copy_address_cb (GtkMenuItem *menuitem, const gchar *url)
{
GtkClipboard *clipboard;
clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
gtk_clipboard_set_text (clipboard, url, -1);
clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
gtk_clipboard_set_text (clipboard, url, -1);
}
static void
chat_text_view_populate_popup (EmpathyChatTextView *view,
GtkMenu *menu,
gpointer user_data)
{
EmpathyChatTextViewPriv *priv;
GtkTextTagTable *table;
GtkTextTag *tag;
gint x, y;
GtkTextIter iter, start, end;
GtkWidget *item;
gchar *str = NULL;
priv = GET_PRIV (view);
/* Clear menu item */
if (gtk_text_buffer_get_char_count (priv->buffer) > 0) {
item = gtk_separator_menu_item_new ();
gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
gtk_widget_show (item);
item = gtk_image_menu_item_new_from_stock (GTK_STOCK_CLEAR, NULL);
gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
gtk_widget_show (item);
g_signal_connect_swapped (item, "activate",
G_CALLBACK (empathy_chat_view_clear),
view);
}
/* Link context menu items */
table = gtk_text_buffer_get_tag_table (priv->buffer);
tag = gtk_text_tag_table_lookup (table, EMPATHY_CHAT_TEXT_VIEW_TAG_LINK);
gtk_widget_get_pointer (GTK_WIDGET (view), &x, &y);
gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (view),
GTK_TEXT_WINDOW_WIDGET,
x, y,
&x, &y);
gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (view), &iter, x, y);
start = end = iter;
if (gtk_text_iter_backward_to_tag_toggle (&start, tag) &&
gtk_text_iter_forward_to_tag_toggle (&end, tag)) {
str = gtk_text_buffer_get_text (priv->buffer,
&start, &end, FALSE);
}
if (EMP_STR_EMPTY (str)) {
g_free (str);
return;
}
/* NOTE: Set data just to get the string freed when not needed. */
g_object_set_data_full (G_OBJECT (menu),
"url", str,
(GDestroyNotify) g_free);
item = gtk_separator_menu_item_new ();
gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
gtk_widget_show (item);
item = gtk_menu_item_new_with_mnemonic (_("_Copy Link Address"));
g_signal_connect (item, "activate",
G_CALLBACK (chat_text_view_copy_address_cb),
str);
gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
gtk_widget_show (item);
item = gtk_menu_item_new_with_mnemonic (_("_Open Link"));
g_signal_connect (item, "activate",
G_CALLBACK (chat_text_view_open_address_cb),
str);
gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
gtk_widget_show (item);
}
static gboolean
chat_text_view_is_scrolled_down (EmpathyChatTextView *view)
{
GtkAdjustment *vadj;
gdouble value;
gdouble upper;
gdouble page_size;
vadj = gtk_scrollable_get_vadjustment (GTK_SCROLLABLE (view));
value = gtk_adjustment_get_value (vadj);
upper = gtk_adjustment_get_upper (vadj);
page_size = gtk_adjustment_get_page_size (vadj);
if (value < upper - page_size) {
return FALSE;
}
return TRUE;
}
static void
chat_text_view_maybe_trim_buffer (EmpathyChatTextView *view)
{
EmpathyChatTextViewPriv *priv;
GtkTextIter top, bottom;
gint line;
gint remove_;
GtkTextTagTable *table;
GtkTextTag *tag;
priv = GET_PRIV (view);
gtk_text_buffer_get_end_iter (priv->buffer, &bottom);
line = gtk_text_iter_get_line (&bottom);
if (line < MAX_LINES) {
return;
}
remove_ = line - MAX_LINES;
gtk_text_buffer_get_start_iter (priv->buffer, &top);
bottom = top;
if (!gtk_text_iter_forward_lines (&bottom, remove_)) {
return;
}
/* Track backwords to a place where we can safely cut, we don't do it in
* the middle of a tag.
*/
table = gtk_text_buffer_get_tag_table (priv->buffer);
tag = gtk_text_tag_table_lookup (table, EMPATHY_CHAT_TEXT_VIEW_TAG_CUT);
if (!tag) {
return;
}
if (!gtk_text_iter_forward_to_tag_toggle (&bottom, tag)) {
return;
}
if (!gtk_text_iter_equal (&top, &bottom)) {
gtk_text_buffer_delete (priv->buffer, &top, &bottom);
}
}
static void
chat_text_view_append_timestamp (EmpathyChatTextView *view,
time_t timestamp,
gboolean show_date)
{
EmpathyChatTextViewPriv *priv = GET_PRIV (view);
GtkTextIter iter;
gchar *tmp;
GString *str;
str = g_string_new ("- ");
/* Append date if needed */
if (show_date) {
GDate *date;
gchar buf[256];
date = g_date_new ();
g_date_set_time_t (date, timestamp);
/* Translators: timestamp displayed between conversations in
* chat windows (strftime format string) */
g_date_strftime (buf, 256, _("%A %B %d %Y"), date);
g_string_append (str, buf);
g_string_append (str, ", ");
g_date_free (date);
}
/* Append time */
tmp = empathy_time_to_string_local (timestamp, EMPATHY_TIME_FORMAT_DISPLAY_SHORT);
g_string_append (str, tmp);
g_free (tmp);
g_string_append (str, " -\n");
/* Insert the string in the buffer */
empathy_chat_text_view_append_spacing (view);
gtk_text_buffer_get_end_iter (priv->buffer, &iter);
gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
&iter,
str->str, -1,
EMPATHY_CHAT_TEXT_VIEW_TAG_TIME,
NULL);
g_string_free (str, TRUE);
}
static void
chat_text_maybe_append_date_and_time (EmpathyChatTextView *view,
time_t timestamp)
{
EmpathyChatTextViewPriv *priv = GET_PRIV (view);
GDate *date, *last_date;
gboolean append_date = FALSE;
gboolean append_time = FALSE;
/* Get the date from last message */
last_date = g_date_new ();
g_date_set_time_t (last_date, priv->last_timestamp);
/* Get the date of the message we are appending */
date = g_date_new ();
g_date_set_time_t (date, timestamp);
/* If last message was from another day we append date and time */
if (g_date_compare (date, last_date) > 0) {
append_date = TRUE;
append_time = TRUE;
}
g_date_free (last_date);
g_date_free (date);
/* If last message is 'old' append the time */
if (timestamp - priv->last_timestamp >= TIMESTAMP_INTERVAL) {
append_time = TRUE;
}
if (append_date || (!priv->only_if_date && append_time)) {
chat_text_view_append_timestamp (view, timestamp, append_date);
}
}
static void
chat_text_view_size_allocate (GtkWidget *widget,
GtkAllocation *alloc)
{
gboolean down;
down = chat_text_view_is_scrolled_down (EMPATHY_CHAT_TEXT_VIEW (widget));
GTK_WIDGET_CLASS (empathy_chat_text_view_parent_class)->size_allocate (widget, alloc);
if (down) {
GtkAdjustment *adj;
adj = gtk_scrollable_get_vadjustment (GTK_SCROLLABLE (widget));
gtk_adjustment_set_value (adj,
gtk_adjustment_get_upper (adj) -
gtk_adjustment_get_page_size (adj));
}
}
static gboolean
chat_text_view_drag_motion (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time_)
{
/* Don't handle drag motion, since we don't want the view to scroll as
* the result of dragging something across it. */
return FALSE;
}
static void
chat_text_view_get_property (GObject *object,
guint param_id,
GValue *value,
GParamSpec *pspec)
{
EmpathyChatTextViewPriv *priv = GET_PRIV (object);
switch (param_id) {
case PROP_LAST_CONTACT:
g_value_set_object (value, priv->last_contact);
break;
case PROP_ONLY_IF_DATE:
g_value_set_boolean (value, priv->only_if_date);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
break;
};
}
static void
chat_text_view_set_property (GObject *object,
guint param_id,
const GValue *value,
GParamSpec *pspec)
{
EmpathyChatTextViewPriv *priv = GET_PRIV (object);
switch (param_id) {
case PROP_ONLY_IF_DATE:
priv->only_if_date = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
break;
};
}
static void
chat_text_view_finalize (GObject *object)
{
EmpathyChatTextView *view;
EmpathyChatTextViewPriv *priv;
view = EMPATHY_CHAT_TEXT_VIEW (object);
priv = GET_PRIV (view);
DEBUG ("%p", object);
g_object_unref (priv->gsettings_chat);
g_object_unref (priv->gsettings_desktop);
if (priv->last_contact) {
g_object_unref (priv->last_contact);
}
if (priv->scroll_time) {
g_timer_destroy (priv->scroll_time);
}
if (priv->scroll_timeout) {
g_source_remove (priv->scroll_timeout);
}
g_object_unref (priv->smiley_manager);
G_OBJECT_CLASS (empathy_chat_text_view_parent_class)->finalize (object);
}
static void
text_view_copy_clipboard (GtkTextView *text_view)
{
chat_text_view_copy_clipboard (EMPATHY_CHAT_VIEW (text_view));
}
static void
empathy_chat_text_view_class_init (EmpathyChatTextViewClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
GtkTextViewClass *text_view_class = GTK_TEXT_VIEW_CLASS (klass);
object_class->finalize = chat_text_view_finalize;
object_class->get_property = chat_text_view_get_property;
object_class->set_property = chat_text_view_set_property;
widget_class->size_allocate = chat_text_view_size_allocate;
widget_class->drag_motion = chat_text_view_drag_motion;
text_view_class->copy_clipboard = text_view_copy_clipboard;
g_object_class_install_property (object_class,
PROP_LAST_CONTACT,
g_param_spec_object ("last-contact",
"Last contact",
"The sender of the last received message",
EMPATHY_TYPE_CONTACT,
G_PARAM_READABLE));
g_object_class_install_property (object_class,
PROP_ONLY_IF_DATE,
g_param_spec_boolean ("only-if-date",
"Only if date",
"Display timestamp only if the date changes",
FALSE,
G_PARAM_READWRITE));
g_type_class_add_private (object_class, sizeof (EmpathyChatTextViewPriv));
}
static void
empathy_chat_text_view_init (EmpathyChatTextView *view)
{
EmpathyChatTextViewPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (view,
EMPATHY_TYPE_CHAT_TEXT_VIEW, EmpathyChatTextViewPriv);
view->priv = priv;
priv->buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
priv->last_timestamp = 0;
priv->allow_scrolling = TRUE;
priv->smiley_manager = empathy_smiley_manager_dup_singleton ();
g_object_set (view,
"wrap-mode", GTK_WRAP_WORD_CHAR,
"editable", FALSE,
"cursor-visible", FALSE,
NULL);
priv->gsettings_chat = g_settings_new (EMPATHY_PREFS_CHAT_SCHEMA);
priv->gsettings_desktop = g_settings_new (
EMPATHY_PREFS_DESKTOP_INTERFACE_SCHEMA);
g_signal_connect (priv->gsettings_desktop,
"changed::" EMPATHY_PREFS_DESKTOP_INTERFACE_DOCUMENT_FONT_NAME,
G_CALLBACK (chat_text_view_notify_system_font_cb),
view);
chat_text_view_system_font_update (view);
chat_text_view_create_tags (view);
g_signal_connect (view,
"populate-popup",
G_CALLBACK (chat_text_view_populate_popup),
NULL);
}
static void
chat_text_view_scroll_stop (EmpathyChatTextView *view)
{
EmpathyChatTextViewPriv *priv = GET_PRIV (view);
g_timer_destroy (priv->scroll_time);
priv->scroll_time = NULL;
g_source_remove (priv->scroll_timeout);
priv->scroll_timeout = 0;
}
/* Code stolen from pidgin/gtkimhtml.c */
static gboolean
chat_text_view_scroll_cb (EmpathyChatTextView *view)
{
EmpathyChatTextViewPriv *priv;
GtkAdjustment *adj;
gdouble max_val;
priv = GET_PRIV (view);
adj = gtk_scrollable_get_vadjustment (GTK_SCROLLABLE (view));
max_val = gtk_adjustment_get_upper (adj) - gtk_adjustment_get_page_size (adj);
g_return_val_if_fail (priv->scroll_time != NULL, FALSE);
if (g_timer_elapsed (priv->scroll_time, NULL) > MAX_SCROLL_TIME) {
/* time's up. jump to the end and kill the timer */
gtk_adjustment_set_value (adj, max_val);
chat_text_view_scroll_stop (view);
return FALSE;
}
/* scroll by 1/3rd the remaining distance */
gtk_adjustment_set_value (adj, gtk_adjustment_get_value (adj) + ((max_val - gtk_adjustment_get_value (adj)) / 3));
return TRUE;
}
static void
chat_text_view_scroll_down (EmpathyChatView *view)
{
EmpathyChatTextViewPriv *priv = GET_PRIV (view);
g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
if (!priv->allow_scrolling) {
return;
}
DEBUG ("Scrolling down");
if (priv->scroll_time) {
g_timer_reset (priv->scroll_time);
} else {
priv->scroll_time = g_timer_new ();
}
if (!priv->scroll_timeout) {
priv->scroll_timeout = g_timeout_add (SCROLL_DELAY,
(GSourceFunc) chat_text_view_scroll_cb,
view);
}
}
static void
chat_text_view_append_message (EmpathyChatView *view,
EmpathyMessage *msg)
{
EmpathyChatTextView *text_view = EMPATHY_CHAT_TEXT_VIEW (view);
EmpathyChatTextViewPriv *priv = GET_PRIV (text_view);
gboolean bottom;
time_t timestamp;
g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
g_return_if_fail (EMPATHY_IS_MESSAGE (msg));
if (!empathy_message_get_body (msg)) {
return;
}
bottom = chat_text_view_is_scrolled_down (text_view);
chat_text_view_maybe_trim_buffer (EMPATHY_CHAT_TEXT_VIEW (view));
timestamp = empathy_message_get_timestamp (msg);
chat_text_maybe_append_date_and_time (text_view, timestamp);
if (EMPATHY_CHAT_TEXT_VIEW_GET_CLASS (view)->append_message) {
EMPATHY_CHAT_TEXT_VIEW_GET_CLASS (view)->append_message (text_view,
msg);
}
if (bottom) {
chat_text_view_scroll_down (view);
}
if (priv->last_contact) {
g_object_unref (priv->last_contact);
}
priv->last_contact = g_object_ref (empathy_message_get_sender (msg));
g_object_notify (G_OBJECT (view), "last-contact");
priv->last_timestamp = timestamp;
}
static void
chat_text_view_append_event (EmpathyChatView *view,
const gchar *str)
{
EmpathyChatTextView *text_view = EMPATHY_CHAT_TEXT_VIEW (view);
EmpathyChatTextViewPriv *priv = GET_PRIV (text_view);
gboolean bottom;
GtkTextIter iter;
gchar *msg;
g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
g_return_if_fail (!EMP_STR_EMPTY (str));
bottom = chat_text_view_is_scrolled_down (text_view);
chat_text_view_maybe_trim_buffer (EMPATHY_CHAT_TEXT_VIEW (view));
chat_text_maybe_append_date_and_time (text_view,
empathy_time_get_current ());
gtk_text_buffer_get_end_iter (priv->buffer, &iter);
msg = g_strdup_printf (" - %s\n", str);
gtk_text_buffer_insert_with_tags_by_name (priv->buffer, &iter,
msg, -1,
EMPATHY_CHAT_TEXT_VIEW_TAG_EVENT,
NULL);
g_free (msg);
if (bottom) {
chat_text_view_scroll_down (view);
}
if (priv->last_contact) {
g_object_unref (priv->last_contact);
priv->last_contact = NULL;
g_object_notify (G_OBJECT (view), "last-contact");
}
}
static void
chat_text_view_scroll (EmpathyChatView *view,
gboolean allow_scrolling)
{
EmpathyChatTextViewPriv *priv = GET_PRIV (view);
g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
DEBUG ("Scrolling %s", allow_scrolling ? "enabled" : "disabled");
priv->allow_scrolling = allow_scrolling;
if (allow_scrolling) {
empathy_chat_view_scroll_down (view);
}
}
static gboolean
chat_text_view_get_has_selection (EmpathyChatView *view)
{
GtkTextBuffer *buffer;
g_return_val_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view), FALSE);
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
return gtk_text_buffer_get_has_selection (buffer);
}
static void
chat_text_view_clear (EmpathyChatView *view)
{
GtkTextBuffer *buffer;
EmpathyChatTextViewPriv *priv;
g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
gtk_text_buffer_set_text (buffer, "", -1);
/* We set these back to the initial values so we get
* timestamps when clearing the window to know when
* conversations start.
*/
priv = GET_PRIV (view);
priv->last_timestamp = 0;
if (priv->last_contact) {
g_object_unref (priv->last_contact);
priv->last_contact = NULL;
}
}
static gboolean
chat_text_view_find_previous (EmpathyChatView *view,
const gchar *search_criteria,
gboolean new_search,
gboolean match_case)
{
EmpathyChatTextViewPriv *priv;
GtkTextBuffer *buffer;
GtkTextIter iter_at_mark;
GtkTextIter iter_match_start;
GtkTextIter iter_match_end;
gboolean found;
gboolean from_start = FALSE;
g_return_val_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view), FALSE);
g_return_val_if_fail (search_criteria != NULL, FALSE);
priv = GET_PRIV (view);
buffer = priv->buffer;
if (EMP_STR_EMPTY (search_criteria)) {
if (priv->find_mark_previous) {
gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
gtk_text_buffer_move_mark (buffer,
priv->find_mark_previous,
&iter_at_mark);
gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
priv->find_mark_previous,
0.0,
TRUE,
0.0,
0.0);
gtk_text_buffer_select_range (buffer,
&iter_at_mark,
&iter_at_mark);
}
return FALSE;
}
if (new_search) {
from_start = TRUE;
}
if (!new_search && priv->find_mark_previous) {
gtk_text_buffer_get_iter_at_mark (buffer,
&iter_at_mark,
priv->find_mark_previous);
} else {
gtk_text_buffer_get_end_iter (buffer, &iter_at_mark);
from_start = TRUE;
}
priv->find_last_direction = FALSE;
/* Use the standard GTK+ method for case sensitive searches. It can't do
* case insensitive searches (see bug #61852), so keep the custom method
* around for case insensitive searches. */
if (match_case) {
found = gtk_text_iter_backward_search (&iter_at_mark,
search_criteria,
0, /* no text search flags, we want exact matches */
&iter_match_start,
&iter_match_end,
NULL);
} else {
found = empathy_text_iter_backward_search (&iter_at_mark,
search_criteria,
&iter_match_start,
&iter_match_end,
NULL);
}
if (!found) {
gboolean result = FALSE;
if (from_start) {
return result;
}
/* Here we wrap around. */
if (!new_search && !priv->find_wrapped) {
priv->find_wrapped = TRUE;
result = chat_text_view_find_previous (view,
search_criteria,
FALSE,
match_case);
priv->find_wrapped = FALSE;
}
return result;
}
/* Set new mark and show on screen */
if (!priv->find_mark_previous) {
priv->find_mark_previous = gtk_text_buffer_create_mark (buffer, NULL,
&iter_match_start,
TRUE);
} else {
gtk_text_buffer_move_mark (buffer,
priv->find_mark_previous,
&iter_match_start);
}
if (!priv->find_mark_next) {
priv->find_mark_next = gtk_text_buffer_create_mark (buffer, NULL,
&iter_match_end,
TRUE);
} else {
gtk_text_buffer_move_mark (buffer,
priv->find_mark_next,
&iter_match_end);
}
gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
priv->find_mark_previous,
0.0,
TRUE,
0.5,
0.5);
gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &iter_match_start);
gtk_text_buffer_move_mark_by_name (buffer, "insert", &iter_match_end);
return TRUE;
}
static gboolean
chat_text_view_find_next (EmpathyChatView *view,
const gchar *search_criteria,
gboolean new_search,
gboolean match_case)
{
EmpathyChatTextViewPriv *priv;
GtkTextBuffer *buffer;
GtkTextIter iter_at_mark;
GtkTextIter iter_match_start;
GtkTextIter iter_match_end;
gboolean found;
gboolean from_start = FALSE;
g_return_val_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view), FALSE);
g_return_val_if_fail (search_criteria != NULL, FALSE);
priv = GET_PRIV (view);
buffer = priv->buffer;
if (EMP_STR_EMPTY (search_criteria)) {
if (priv->find_mark_next) {
gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
gtk_text_buffer_move_mark (buffer,
priv->find_mark_next,
&iter_at_mark);
gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
priv->find_mark_next,
0.0,
TRUE,
0.0,
0.0);
gtk_text_buffer_select_range (buffer,
&iter_at_mark,
&iter_at_mark);
}
return FALSE;
}
if (new_search) {
from_start = TRUE;
}
if (!new_search && priv->find_mark_next) {
gtk_text_buffer_get_iter_at_mark (buffer,
&iter_at_mark,
priv->find_mark_next);
} else {
gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
from_start = TRUE;
}
priv->find_last_direction = TRUE;
/* Use the standard GTK+ method for case sensitive searches. It can't do
* case insensitive searches (see bug #61852), so keep the custom method
* around for case insensitive searches. */
if (match_case) {
found = gtk_text_iter_forward_search (&iter_at_mark,
search_criteria,
0,
&iter_match_start,
&iter_match_end,
NULL);
} else {
found = empathy_text_iter_forward_search (&iter_at_mark,
search_criteria,
&iter_match_start,
&iter_match_end,
NULL);
}
if (!found) {
gboolean result = FALSE;
if (from_start) {
return result;
}
/* Here we wrap around. */
if (!new_search && !priv->find_wrapped) {
priv->find_wrapped = TRUE;
result = chat_text_view_find_next (view,
search_criteria,
FALSE,
match_case);
priv->find_wrapped = FALSE;
}
return result;
}
/* Set new mark and show on screen */
if (!priv->find_mark_next) {
priv->find_mark_next = gtk_text_buffer_create_mark (buffer, NULL,
&iter_match_end,
TRUE);
} else {
gtk_text_buffer_move_mark (buffer,
priv->find_mark_next,
&iter_match_end);
}
if (!priv->find_mark_previous) {
priv->find_mark_previous = gtk_text_buffer_create_mark (buffer, NULL,
&iter_match_start,
TRUE);
} else {
gtk_text_buffer_move_mark (buffer,
priv->find_mark_previous,
&iter_match_start);
}
gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
priv->find_mark_next,
0.0,
TRUE,
0.5,
0.5);
gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &iter_match_start);
gtk_text_buffer_move_mark_by_name (buffer, "insert", &iter_match_end);
return TRUE;
}
static void
chat_text_view_find_abilities (EmpathyChatView *view,
const gchar *search_criteria,
gboolean match_case,
gboolean *can_do_previous,
gboolean *can_do_next)
{
EmpathyChatTextViewPriv *priv;
GtkTextBuffer *buffer;
GtkTextIter iter_at_mark;
GtkTextIter iter_match_start;
GtkTextIter iter_match_end;
g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
g_return_if_fail (search_criteria != NULL);
g_return_if_fail (can_do_previous != NULL && can_do_next != NULL);
priv = GET_PRIV (view);
buffer = priv->buffer;
if (can_do_previous) {
if (priv->find_mark_previous) {
gtk_text_buffer_get_iter_at_mark (buffer,
&iter_at_mark,
priv->find_mark_previous);
} else {
gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
}
if (match_case) {
*can_do_previous = gtk_text_iter_backward_search (&iter_at_mark,
search_criteria,
0,
&iter_match_start,
&iter_match_end,
NULL);
} else {
*can_do_previous = empathy_text_iter_backward_search (&iter_at_mark,
search_criteria,
&iter_match_start,
&iter_match_end,
NULL);
}
}
if (can_do_next) {
if (priv->find_mark_next) {
gtk_text_buffer_get_iter_at_mark (buffer,
&iter_at_mark,
priv->find_mark_next);
} else {
gtk_text_buffer_get_start_iter (buffer, &iter_at_mark);
}
if (match_case) {
*can_do_next = gtk_text_iter_forward_search (&iter_at_mark,
search_criteria,
0,
&iter_match_start,
&iter_match_end,
NULL);
} else {
*can_do_next = empathy_text_iter_forward_search (&iter_at_mark,
search_criteria,
&iter_match_start,
&iter_match_end,
NULL);
}
}
}
static void
chat_text_view_highlight (EmpathyChatView *view,
const gchar *text,
gboolean match_case)
{
GtkTextBuffer *buffer;
GtkTextIter iter;
GtkTextIter iter_start;
GtkTextIter iter_end;
GtkTextIter iter_match_start;
GtkTextIter iter_match_end;
gboolean found;
g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
gtk_text_buffer_get_start_iter (buffer, &iter);
gtk_text_buffer_get_bounds (buffer, &iter_start, &iter_end);
gtk_text_buffer_remove_tag_by_name (buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_HIGHLIGHT,
&iter_start,
&iter_end);
if (EMP_STR_EMPTY (text)) {
return;
}
while (1) {
if (match_case) {
found = gtk_text_iter_forward_search (&iter,
text,
0,
&iter_match_start,
&iter_match_end,
NULL);
} else {
found = empathy_text_iter_forward_search (&iter,
text,
&iter_match_start,
&iter_match_end,
NULL);
}
if (!found) {
break;
}
gtk_text_buffer_apply_tag_by_name (buffer, EMPATHY_CHAT_TEXT_VIEW_TAG_HIGHLIGHT,
&iter_match_start,
&iter_match_end);
iter = iter_match_end;
}
}
static void
chat_text_view_copy_clipboard (EmpathyChatView *view)
{
GtkTextBuffer *buffer;
GtkTextIter start, iter, end;
GtkClipboard *clipboard;
GdkPixbuf *pixbuf;
gunichar c;
GtkTextChildAnchor *anchor = NULL;
GString *str;
GList *list;
gboolean ignore_newlines = FALSE;
g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
if (!gtk_text_buffer_get_selection_bounds (buffer, &start, &end))
return;
str = g_string_new ("");
for (iter = start; !gtk_text_iter_equal (&iter, &end); gtk_text_iter_forward_char (&iter)) {
c = gtk_text_iter_get_char (&iter);
/* 0xFFFC is the 'object replacement' unicode character,
* it indicates the presence of a pixbuf or a widget. */
if (c == 0xFFFC) {
ignore_newlines = FALSE;
if ((pixbuf = gtk_text_iter_get_pixbuf (&iter))) {
gchar *text;
text = g_object_get_data (G_OBJECT(pixbuf),
"smiley_str");
if (text)
str = g_string_append (str, text);
} else if ((anchor = gtk_text_iter_get_child_anchor (&iter))) {
gchar *text;
list = gtk_text_child_anchor_get_widgets (anchor);
if (list) {
text = g_object_get_data (G_OBJECT(list->data),
"str_obj");
if (text)
str = g_string_append (str, text);
}
g_list_free (list);
}
} else if (c == '\n') {
if (!ignore_newlines) {
ignore_newlines = TRUE;
str = g_string_append_unichar (str, c);
}
} else {
ignore_newlines = FALSE;
str = g_string_append_unichar (str, c);
}
}
gtk_clipboard_set_text (clipboard, str->str, str->len);
g_string_free (str, TRUE);
}
static void
chat_text_view_iface_init (EmpathyChatViewIface *iface)
{
iface->append_message = chat_text_view_append_message;
iface->append_event = chat_text_view_append_event;
iface->scroll = chat_text_view_scroll;
iface->scroll_down = chat_text_view_scroll_down;
iface->get_has_selection = chat_text_view_get_has_selection;
iface->clear = chat_text_view_clear;
iface->find_previous = chat_text_view_find_previous;
iface->find_next = chat_text_view_find_next;
iface->find_abilities = chat_text_view_find_abilities;
iface->highlight = chat_text_view_highlight;
iface->copy_clipboard = chat_text_view_copy_clipboard;
}
EmpathyContact *
empathy_chat_text_view_get_last_contact (EmpathyChatTextView *view)
{
EmpathyChatTextViewPriv *priv = GET_PRIV (view);
g_return_val_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view), NULL);
return priv->last_contact;
}
time_t
empathy_chat_text_view_get_last_timestamp (EmpathyChatTextView *view)
{
EmpathyChatTextViewPriv *priv = GET_PRIV (view);
g_return_val_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view), 0);
return priv->last_timestamp;
}
void
empathy_chat_text_view_set_only_if_date (EmpathyChatTextView *view,
gboolean only_if_date)
{
EmpathyChatTextViewPriv *priv = GET_PRIV (view);
g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view));
if (only_if_date != priv->only_if_date) {
priv->only_if_date = only_if_date;
g_object_notify (G_OBJECT (view), "only-if-date");
}
}
static void
chat_text_view_replace_link (const gchar *text,
gssize len,
gpointer match_data,
gpointer user_data)
{
GtkTextBuffer *buffer = GTK_TEXT_BUFFER (user_data);
GtkTextIter iter;
gtk_text_buffer_get_end_iter (buffer, &iter);
gtk_text_buffer_insert_with_tags_by_name (buffer, &iter,
text, len,
EMPATHY_CHAT_TEXT_VIEW_TAG_LINK,
NULL);
}
static void
chat_text_view_replace_smiley (const gchar *text,
gssize len,
gpointer match_data,
gpointer user_data)
{
EmpathySmileyHit *hit = match_data;
GtkTextBuffer *buffer = GTK_TEXT_BUFFER (user_data);
GtkTextIter iter;
gtk_text_buffer_get_end_iter (buffer, &iter);
gtk_text_buffer_insert_pixbuf (buffer, &iter, hit->pixbuf);
}
static void
chat_text_view_replace_verbatim (const gchar *text,
gssize len,
gpointer match_data,
gpointer user_data)
{
GtkTextBuffer *buffer = GTK_TEXT_BUFFER (user_data);
GtkTextIter iter;
gtk_text_buffer_get_end_iter (buffer, &iter);
gtk_text_buffer_insert (buffer, &iter, text, len);
}
static EmpathyStringParser string_parsers[] = {
{empathy_string_match_link, chat_text_view_replace_link},
{empathy_string_match_all, chat_text_view_replace_verbatim},
{NULL, NULL}
};
static EmpathyStringParser string_parsers_with_smiley[] = {
{empathy_string_match_link, chat_text_view_replace_link},
{empathy_string_match_smiley, chat_text_view_replace_smiley},
{empathy_string_match_all, chat_text_view_replace_verbatim},
{NULL, NULL}
};
void
empathy_chat_text_view_append_body (EmpathyChatTextView *view,
const gchar *body,
const gchar *tag)
{
EmpathyChatTextViewPriv *priv = GET_PRIV (view);
EmpathyStringParser *parsers;
gboolean use_smileys;
GtkTextIter start_iter;
GtkTextIter iter;
GtkTextMark *mark;
/* Check if we have to parse smileys */
use_smileys = g_settings_get_boolean (priv->gsettings_chat,
EMPATHY_PREFS_CHAT_SHOW_SMILEYS);
if (use_smileys)
parsers = string_parsers_with_smiley;
else
parsers = string_parsers;
/* Create a mark at the place we'll start inserting */
gtk_text_buffer_get_end_iter (priv->buffer, &start_iter);
mark = gtk_text_buffer_create_mark (priv->buffer, NULL, &start_iter, TRUE);
/* Parse text for links/smileys and insert in the buffer */
empathy_string_parser_substr (body, -1, parsers, priv->buffer);
/* Insert a newline after the text inserted */
gtk_text_buffer_get_end_iter (priv->buffer, &iter);
gtk_text_buffer_insert (priv->buffer, &iter, "\n", 1);
/* Apply the style to the inserted text. */
gtk_text_buffer_get_iter_at_mark (priv->buffer, &start_iter, mark);
gtk_text_buffer_get_end_iter (priv->buffer, &iter);
gtk_text_buffer_apply_tag_by_name (priv->buffer, tag,
&start_iter,
&iter);
gtk_text_buffer_delete_mark (priv->buffer, mark);
}
void
empathy_chat_text_view_append_spacing (EmpathyChatTextView *view)
{
EmpathyChatTextViewPriv *priv = GET_PRIV (view);
GtkTextIter iter;
gtk_text_buffer_get_end_iter (priv->buffer, &iter);
gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
&iter,
"\n",
-1,
EMPATHY_CHAT_TEXT_VIEW_TAG_CUT,
EMPATHY_CHAT_TEXT_VIEW_TAG_SPACING,
NULL);
}
GtkTextTag *
empathy_chat_text_view_tag_set (EmpathyChatTextView *view,
const gchar *tag_name,
const gchar *first_property_name,
...)
{
EmpathyChatTextViewPriv *priv = GET_PRIV (view);
GtkTextTag *tag;
GtkTextTagTable *table;
va_list list;
g_return_val_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view), NULL);
g_return_val_if_fail (tag_name != NULL, NULL);
table = gtk_text_buffer_get_tag_table (priv->buffer);
tag = gtk_text_tag_table_lookup (table, tag_name);
if (tag && first_property_name) {
va_start (list, first_property_name);
g_object_set_valist (G_OBJECT (tag), first_property_name, list);
va_end (list);
}
return tag;
}