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-rw-r--r--trunk/libempathy-gtk/empathy-chat-view.c1468
1 files changed, 1468 insertions, 0 deletions
diff --git a/trunk/libempathy-gtk/empathy-chat-view.c b/trunk/libempathy-gtk/empathy-chat-view.c
new file mode 100644
index 000000000..2131cecb4
--- /dev/null
+++ b/trunk/libempathy-gtk/empathy-chat-view.c
@@ -0,0 +1,1468 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/*
+ * Copyright (C) 2002-2007 Imendio AB
+ *
+ * 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Authors: Mikael Hallendal <micke@imendio.com>
+ * Richard Hult <richard@imendio.com>
+ * Martyn Russell <martyn@imendio.com>
+ */
+
+#include "config.h"
+
+#include <sys/types.h>
+#include <string.h>
+#include <time.h>
+
+#include <glib/gi18n.h>
+#include <gtk/gtkbutton.h>
+#include <gtk/gtkimage.h>
+#include <gtk/gtkmenu.h>
+#include <gtk/gtkmenuitem.h>
+#include <gtk/gtkimagemenuitem.h>
+#include <gtk/gtkstock.h>
+#include <gtk/gtkscrolledwindow.h>
+#include <gtk/gtksizegroup.h>
+#include <glade/glade.h>
+
+#include <telepathy-glib/util.h>
+#include <libmissioncontrol/mc-account.h>
+
+#include <libempathy/empathy-utils.h>
+
+#include "empathy-chat-view.h"
+#include "empathy-chat.h"
+#include "empathy-conf.h"
+#include "empathy-theme-manager.h"
+#include "empathy-ui-utils.h"
+#include "empathy-smiley-manager.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, EmpathyChatView)
+typedef struct {
+ GtkTextBuffer *buffer;
+
+ EmpathyTheme *theme;
+
+ time_t last_timestamp;
+
+ gboolean allow_scrolling;
+ guint scroll_timeout;
+ GTimer *scroll_time;
+
+ GtkTextMark *find_mark_previous;
+ GtkTextMark *find_mark_next;
+ gboolean find_wrapped;
+ gboolean find_last_direction;
+
+ /* This is for the group chat so we know if the "other" last contact
+ * changed, so we know whether to insert a header or not.
+ */
+ EmpathyContact *last_contact;
+
+ guint notify_system_fonts_id;
+ guint notify_show_avatars_id;
+} EmpathyChatViewPriv;
+
+static void chat_view_finalize (GObject *object);
+static gboolean chat_view_drag_motion (GtkWidget *widget,
+ GdkDragContext *context,
+ gint x,
+ gint y,
+ guint time);
+static void chat_view_size_allocate (GtkWidget *widget,
+ GtkAllocation *alloc);
+static void chat_view_setup_tags (EmpathyChatView *view);
+static void chat_view_system_font_update (EmpathyChatView *view);
+static void chat_view_notify_system_font_cb (EmpathyConf *conf,
+ const gchar *key,
+ gpointer user_data);
+static void chat_view_notify_show_avatars_cb (EmpathyConf *conf,
+ const gchar *key,
+ gpointer user_data);
+static void chat_view_populate_popup (EmpathyChatView *view,
+ GtkMenu *menu,
+ gpointer user_data);
+static gboolean chat_view_event_cb (EmpathyChatView *view,
+ GdkEventMotion *event,
+ GtkTextTag *tag);
+static gboolean chat_view_url_event_cb (GtkTextTag *tag,
+ GObject *object,
+ GdkEvent *event,
+ GtkTextIter *iter,
+ GtkTextBuffer *buffer);
+static void chat_view_open_address_cb (GtkMenuItem *menuitem,
+ const gchar *url);
+static void chat_view_copy_address_cb (GtkMenuItem *menuitem,
+ const gchar *url);
+static void chat_view_clear_view_cb (GtkMenuItem *menuitem,
+ EmpathyChatView *view);
+static gboolean chat_view_is_scrolled_down (EmpathyChatView *view);
+static void chat_view_theme_changed_cb (EmpathyThemeManager *manager,
+ EmpathyChatView *view);
+static void chat_view_theme_notify_cb (EmpathyTheme *theme,
+ GParamSpec *param,
+ EmpathyChatView *view);
+
+G_DEFINE_TYPE (EmpathyChatView, empathy_chat_view, GTK_TYPE_TEXT_VIEW);
+
+static void
+empathy_chat_view_class_init (EmpathyChatViewClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+ GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+
+ object_class->finalize = chat_view_finalize;
+ widget_class->size_allocate = chat_view_size_allocate;
+ widget_class->drag_motion = chat_view_drag_motion;
+
+ g_type_class_add_private (object_class, sizeof (EmpathyChatViewPriv));
+}
+
+static void
+empathy_chat_view_init (EmpathyChatView *view)
+{
+ gboolean show_avatars;
+ EmpathyChatViewPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (view,
+ EMPATHY_TYPE_CHAT_VIEW, EmpathyChatViewPriv);
+
+ view->priv = priv;
+ priv->buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
+ priv->last_timestamp = 0;
+ priv->allow_scrolling = TRUE;
+
+ g_object_set (view,
+ "wrap-mode", GTK_WRAP_WORD_CHAR,
+ "editable", FALSE,
+ "cursor-visible", FALSE,
+ NULL);
+
+ priv->notify_system_fonts_id =
+ empathy_conf_notify_add (empathy_conf_get (),
+ "/desktop/gnome/interface/document_font_name",
+ chat_view_notify_system_font_cb,
+ view);
+ chat_view_system_font_update (view);
+
+ priv->notify_show_avatars_id =
+ empathy_conf_notify_add (empathy_conf_get (),
+ EMPATHY_PREFS_UI_SHOW_AVATARS,
+ chat_view_notify_show_avatars_cb,
+ view);
+
+ chat_view_setup_tags (view);
+
+ empathy_theme_manager_apply_saved (empathy_theme_manager_get (), view);
+
+ show_avatars = FALSE;
+ empathy_conf_get_bool (empathy_conf_get (),
+ EMPATHY_PREFS_UI_SHOW_AVATARS,
+ &show_avatars);
+
+ empathy_theme_set_show_avatars (priv->theme, show_avatars);
+
+ g_signal_connect (view,
+ "populate-popup",
+ G_CALLBACK (chat_view_populate_popup),
+ NULL);
+
+ g_signal_connect_object (empathy_theme_manager_get (),
+ "theme-changed",
+ G_CALLBACK (chat_view_theme_changed_cb),
+ view,
+ 0);
+}
+
+static void
+chat_view_finalize (GObject *object)
+{
+ EmpathyChatView *view;
+ EmpathyChatViewPriv *priv;
+
+ view = EMPATHY_CHAT_VIEW (object);
+ priv = GET_PRIV (view);
+
+ DEBUG ("finalize: %p", object);
+
+ empathy_conf_notify_remove (empathy_conf_get (), priv->notify_system_fonts_id);
+ empathy_conf_notify_remove (empathy_conf_get (), priv->notify_show_avatars_id);
+
+ 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);
+ }
+
+ if (priv->theme) {
+ g_signal_handlers_disconnect_by_func (priv->theme,
+ chat_view_theme_notify_cb,
+ view);
+ g_object_unref (priv->theme);
+ }
+
+ G_OBJECT_CLASS (empathy_chat_view_parent_class)->finalize (object);
+}
+
+static gboolean
+chat_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_view_size_allocate (GtkWidget *widget,
+ GtkAllocation *alloc)
+{
+ gboolean down;
+
+ down = chat_view_is_scrolled_down (EMPATHY_CHAT_VIEW (widget));
+
+ GTK_WIDGET_CLASS (empathy_chat_view_parent_class)->size_allocate (widget, alloc);
+
+ if (down) {
+ GtkAdjustment *adj;
+
+ adj = GTK_TEXT_VIEW (widget)->vadjustment;
+ gtk_adjustment_set_value (adj, adj->upper - adj->page_size);
+ }
+}
+
+static void
+chat_view_setup_tags (EmpathyChatView *view)
+{
+ EmpathyChatViewPriv *priv;
+ GtkTextTag *tag;
+
+ priv = GET_PRIV (view);
+
+ gtk_text_buffer_create_tag (priv->buffer,
+ "cut",
+ NULL);
+
+ /* FIXME: Move to the theme and come up with something that looks a bit
+ * nicer.
+ */
+ gtk_text_buffer_create_tag (priv->buffer,
+ "highlight",
+ "background", "yellow",
+ NULL);
+
+ tag = gtk_text_buffer_create_tag (priv->buffer,
+ "link",
+ NULL);
+
+ g_signal_connect (tag,
+ "event",
+ G_CALLBACK (chat_view_url_event_cb),
+ priv->buffer);
+
+ g_signal_connect (view,
+ "motion-notify-event",
+ G_CALLBACK (chat_view_event_cb),
+ tag);
+}
+
+static void
+chat_view_system_font_update (EmpathyChatView *view)
+{
+ PangoFontDescription *font_description = NULL;
+ gchar *font_name;
+
+ if (empathy_conf_get_string (empathy_conf_get (),
+ "/desktop/gnome/interface/document_font_name",
+ &font_name) && font_name) {
+ font_description = pango_font_description_from_string (font_name);
+ g_free (font_name);
+ } else {
+ font_description = NULL;
+ }
+
+ gtk_widget_modify_font (GTK_WIDGET (view), font_description);
+
+ if (font_description) {
+ pango_font_description_free (font_description);
+ }
+}
+
+static void
+chat_view_notify_system_font_cb (EmpathyConf *conf,
+ const gchar *key,
+ gpointer user_data)
+{
+ EmpathyChatView *view;
+ EmpathyChatViewPriv *priv;
+ gboolean show_avatars = FALSE;
+
+ view = user_data;
+ priv = GET_PRIV (view);
+
+ chat_view_system_font_update (view);
+
+ /* Ugly, again, to adjust the vertical position of the nick... Will fix
+ * this when reworking the theme manager so that view register
+ * themselves with it instead of the other way around.
+ */
+ empathy_conf_get_bool (conf,
+ EMPATHY_PREFS_UI_SHOW_AVATARS,
+ &show_avatars);
+
+ empathy_theme_set_show_avatars (priv->theme, show_avatars);
+}
+
+static void
+chat_view_notify_show_avatars_cb (EmpathyConf *conf,
+ const gchar *key,
+ gpointer user_data)
+{
+ EmpathyChatView *view;
+ EmpathyChatViewPriv *priv;
+ gboolean show_avatars = FALSE;
+
+ view = user_data;
+ priv = GET_PRIV (view);
+
+ empathy_conf_get_bool (conf, key, &show_avatars);
+
+ empathy_theme_set_show_avatars (priv->theme, show_avatars);
+}
+
+static void
+chat_view_populate_popup (EmpathyChatView *view,
+ GtkMenu *menu,
+ gpointer user_data)
+{
+ EmpathyChatViewPriv *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_menu_item_new ();
+ gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
+ gtk_widget_show (item);
+
+ item = gtk_image_menu_item_new_from_stock (GTK_STOCK_CLEAR, NULL);
+ gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
+ gtk_widget_show (item);
+
+ g_signal_connect (item,
+ "activate",
+ G_CALLBACK (chat_view_clear_view_cb),
+ view);
+ }
+
+ /* Link context menu items */
+ table = gtk_text_buffer_get_tag_table (priv->buffer);
+ tag = gtk_text_tag_table_lookup (table, "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 (G_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_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_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_view_open_address_cb),
+ str);
+ gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
+ gtk_widget_show (item);
+}
+
+static gboolean
+chat_view_event_cb (EmpathyChatView *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 gboolean
+chat_view_url_event_cb (GtkTextTag *tag,
+ GObject *object,
+ GdkEvent *event,
+ GtkTextIter *iter,
+ GtkTextBuffer *buffer)
+{
+ GtkTextIter start, end;
+ gchar *str;
+
+ /* If the link is being selected, don't do anything. */
+ gtk_text_buffer_get_selection_bounds (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 (buffer,
+ &start,
+ &end,
+ FALSE);
+
+ empathy_url_show (str);
+ g_free (str);
+ }
+ }
+
+ return FALSE;
+}
+
+static void
+chat_view_open_address_cb (GtkMenuItem *menuitem, const gchar *url)
+{
+ empathy_url_show (url);
+}
+
+static void
+chat_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_view_clear_view_cb (GtkMenuItem *menuitem, EmpathyChatView *view)
+{
+ empathy_chat_view_clear (view);
+}
+
+static gboolean
+chat_view_is_scrolled_down (EmpathyChatView *view)
+{
+ GtkWidget *sw;
+
+ sw = gtk_widget_get_parent (GTK_WIDGET (view));
+ if (GTK_IS_SCROLLED_WINDOW (sw)) {
+ GtkAdjustment *vadj;
+
+ vadj = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (sw));
+
+ if (vadj->value + vadj->page_size / 2 < vadj->upper - vadj->page_size) {
+ return FALSE;
+ }
+ }
+
+ return TRUE;
+}
+
+static void
+chat_view_maybe_trim_buffer (EmpathyChatView *view)
+{
+ EmpathyChatViewPriv *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, "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_view_theme_changed_cb (EmpathyThemeManager *manager,
+ EmpathyChatView *view)
+{
+ EmpathyChatViewPriv *priv;
+ gboolean show_avatars = FALSE;
+
+ priv = GET_PRIV (view);
+
+ empathy_theme_manager_apply_saved (manager, view);
+
+ /* Needed for now to update the "rise" property of the names to get it
+ * vertically centered.
+ */
+ empathy_conf_get_bool (empathy_conf_get (),
+ EMPATHY_PREFS_UI_SHOW_AVATARS,
+ &show_avatars);
+ empathy_theme_set_show_avatars (priv->theme, show_avatars);
+}
+
+/* Pads a pixbuf to the specified size, by centering it in a larger transparent
+ * pixbuf. Returns a new ref.
+ */
+static GdkPixbuf *
+chat_view_pad_to_size (GdkPixbuf *pixbuf,
+ gint width,
+ gint height,
+ gint extra_padding_right)
+{
+ gint src_width, src_height;
+ GdkPixbuf *padded;
+ gint x_offset, y_offset;
+
+ src_width = gdk_pixbuf_get_width (pixbuf);
+ src_height = gdk_pixbuf_get_height (pixbuf);
+
+ x_offset = (width - src_width) / 2;
+ y_offset = (height - src_height) / 2;
+
+ padded = gdk_pixbuf_new (gdk_pixbuf_get_colorspace (pixbuf),
+ TRUE, /* alpha */
+ gdk_pixbuf_get_bits_per_sample (pixbuf),
+ width + extra_padding_right,
+ height);
+
+ gdk_pixbuf_fill (padded, 0);
+
+ gdk_pixbuf_copy_area (pixbuf,
+ 0, /* source coords */
+ 0,
+ src_width,
+ src_height,
+ padded,
+ x_offset, /* dest coords */
+ y_offset);
+
+ return padded;
+}
+
+typedef struct {
+ GdkPixbuf *pixbuf;
+ gchar *token;
+} AvatarData;
+
+static void
+chat_view_avatar_cache_data_free (gpointer ptr)
+{
+ AvatarData *data = ptr;
+
+ g_object_unref (data->pixbuf);
+ g_free (data->token);
+ g_slice_free (AvatarData, data);
+}
+
+GdkPixbuf *
+empathy_chat_view_get_avatar_pixbuf_with_cache (EmpathyContact *contact)
+{
+ AvatarData *data;
+ EmpathyAvatar *avatar;
+ GdkPixbuf *tmp_pixbuf;
+ GdkPixbuf *pixbuf = NULL;
+
+ /* Check if avatar is in cache and if it's up to date */
+ avatar = empathy_contact_get_avatar (contact);
+ data = g_object_get_data (G_OBJECT (contact), "chat-view-avatar-cache");
+ if (data) {
+ if (avatar && !tp_strdiff (avatar->token, data->token)) {
+ /* We have the avatar in cache */
+ return data->pixbuf;
+ }
+ }
+
+ /* Avatar not in cache, create pixbuf */
+ tmp_pixbuf = empathy_pixbuf_avatar_from_contact_scaled (contact, 32, 32);
+ if (tmp_pixbuf) {
+ pixbuf = chat_view_pad_to_size (tmp_pixbuf, 32, 32, 6);
+ g_object_unref (tmp_pixbuf);
+ }
+ if (!pixbuf) {
+ return NULL;
+ }
+
+ /* Insert new pixbuf in cache */
+ data = g_slice_new0 (AvatarData);
+ data->token = g_strdup (avatar->token);
+ data->pixbuf = pixbuf;
+
+ g_object_set_data_full (G_OBJECT (contact), "chat-view-avatar-cache",
+ data, chat_view_avatar_cache_data_free);
+
+ return data->pixbuf;
+}
+
+EmpathyChatView *
+empathy_chat_view_new (void)
+{
+ return g_object_new (EMPATHY_TYPE_CHAT_VIEW, NULL);
+}
+
+/* Code stolen from pidgin/gtkimhtml.c */
+static gboolean
+chat_view_scroll_cb (EmpathyChatView *view)
+{
+ EmpathyChatViewPriv *priv;
+ GtkAdjustment *adj;
+ gdouble max_val;
+
+ priv = GET_PRIV (view);
+ adj = GTK_TEXT_VIEW (view)->vadjustment;
+ max_val = adj->upper - adj->page_size;
+
+ 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);
+ g_timer_destroy (priv->scroll_time);
+ priv->scroll_time = NULL;
+ priv->scroll_timeout = 0;
+ 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;
+}
+
+void
+empathy_chat_view_scroll_down (EmpathyChatView *view)
+{
+ EmpathyChatViewPriv *priv;
+
+ g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
+
+ priv = GET_PRIV (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_view_scroll_cb,
+ view);
+ }
+}
+
+void
+empathy_chat_view_append_message (EmpathyChatView *view,
+ EmpathyMessage *msg)
+{
+ EmpathyChatViewPriv *priv = GET_PRIV (view);
+ gboolean bottom;
+
+ g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
+ g_return_if_fail (EMPATHY_IS_MESSAGE (msg));
+
+ if (!empathy_message_get_body (msg)) {
+ return;
+ }
+
+ bottom = chat_view_is_scrolled_down (view);
+
+ chat_view_maybe_trim_buffer (view);
+
+ empathy_theme_append_message (priv->theme, view, msg);
+
+ if (bottom) {
+ empathy_chat_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));
+}
+
+void
+empathy_chat_view_append_event (EmpathyChatView *view,
+ const gchar *str)
+{
+ EmpathyChatViewPriv *priv;
+ gboolean bottom;
+
+ g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
+ g_return_if_fail (!G_STR_EMPTY (str));
+
+ priv = GET_PRIV (view);
+
+ bottom = chat_view_is_scrolled_down (view);
+
+ chat_view_maybe_trim_buffer (view);
+
+ empathy_theme_append_event (priv->theme, view, str);
+
+ if (bottom) {
+ empathy_chat_view_scroll_down (view);
+ }
+
+ if (priv->last_contact) {
+ g_object_unref (priv->last_contact);
+ priv->last_contact = NULL;
+ }
+}
+
+void
+empathy_chat_view_append_button (EmpathyChatView *view,
+ const gchar *message,
+ GtkWidget *button1,
+ GtkWidget *button2)
+{
+ EmpathyChatViewPriv *priv;
+ GtkTextChildAnchor *anchor;
+ GtkTextIter iter;
+ gboolean bottom;
+ const gchar *tag;
+
+ g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
+ g_return_if_fail (button1 != NULL);
+
+ priv = GET_PRIV (view);
+
+ tag = "invite";
+
+ bottom = chat_view_is_scrolled_down (view);
+
+ empathy_theme_append_timestamp (priv->theme, view, NULL, TRUE, TRUE);
+
+ if (message) {
+ empathy_theme_append_text (priv->theme, view, message, tag, NULL);
+ }
+
+ gtk_text_buffer_get_end_iter (priv->buffer, &iter);
+
+ anchor = gtk_text_buffer_create_child_anchor (priv->buffer, &iter);
+ gtk_text_view_add_child_at_anchor (GTK_TEXT_VIEW (view), button1, anchor);
+ gtk_widget_show (button1);
+
+ gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
+ &iter,
+ " ",
+ 1,
+ tag,
+ NULL);
+
+ if (button2) {
+ gtk_text_buffer_get_end_iter (priv->buffer, &iter);
+
+ anchor = gtk_text_buffer_create_child_anchor (priv->buffer, &iter);
+ gtk_text_view_add_child_at_anchor (GTK_TEXT_VIEW (view), button2, anchor);
+ gtk_widget_show (button2);
+
+ gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
+ &iter,
+ " ",
+ 1,
+ tag,
+ NULL);
+ }
+
+ gtk_text_buffer_get_end_iter (priv->buffer, &iter);
+ gtk_text_buffer_insert_with_tags_by_name (priv->buffer,
+ &iter,
+ "\n\n",
+ 2,
+ tag,
+ NULL);
+
+ if (bottom) {
+ empathy_chat_view_scroll_down (view);
+ }
+
+ if (priv->last_contact) {
+ g_object_unref (priv->last_contact);
+ priv->last_contact = NULL;
+ }
+}
+
+void
+empathy_chat_view_scroll (EmpathyChatView *view,
+ gboolean allow_scrolling)
+{
+ EmpathyChatViewPriv *priv = GET_PRIV (view);
+
+ g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
+
+ DEBUG ("Scrolling %s", allow_scrolling ? "enabled" : "disabled");
+
+ priv->allow_scrolling = allow_scrolling;
+ if (allow_scrolling) {
+ empathy_chat_view_scroll_down (view);
+ }
+}
+
+gboolean
+empathy_chat_view_get_selection_bounds (EmpathyChatView *view,
+ GtkTextIter *start,
+ GtkTextIter *end)
+{
+ GtkTextBuffer *buffer;
+
+ g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), FALSE);
+
+ buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
+
+ return gtk_text_buffer_get_selection_bounds (buffer, start, end);
+}
+
+void
+empathy_chat_view_clear (EmpathyChatView *view)
+{
+ GtkTextBuffer *buffer;
+ EmpathyChatViewPriv *priv;
+
+ g_return_if_fail (EMPATHY_IS_CHAT_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;
+}
+
+gboolean
+empathy_chat_view_find_previous (EmpathyChatView *view,
+ const gchar *search_criteria,
+ gboolean new_search)
+{
+ EmpathyChatViewPriv *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_VIEW (view), FALSE);
+ g_return_val_if_fail (search_criteria != NULL, FALSE);
+
+ priv = GET_PRIV (view);
+
+ buffer = priv->buffer;
+
+ if (G_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 (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;
+
+ 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 = empathy_chat_view_find_previous (view,
+ search_criteria,
+ FALSE);
+ 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;
+}
+
+gboolean
+empathy_chat_view_find_next (EmpathyChatView *view,
+ const gchar *search_criteria,
+ gboolean new_search)
+{
+ EmpathyChatViewPriv *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_VIEW (view), FALSE);
+ g_return_val_if_fail (search_criteria != NULL, FALSE);
+
+ priv = GET_PRIV (view);
+
+ buffer = priv->buffer;
+
+ if (G_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 (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;
+
+ 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 = empathy_chat_view_find_next (view,
+ search_criteria,
+ FALSE);
+ 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;
+}
+
+
+void
+empathy_chat_view_find_abilities (EmpathyChatView *view,
+ const gchar *search_criteria,
+ gboolean *can_do_previous,
+ gboolean *can_do_next)
+{
+ EmpathyChatViewPriv *priv;
+ GtkTextBuffer *buffer;
+ GtkTextIter iter_at_mark;
+ GtkTextIter iter_match_start;
+ GtkTextIter iter_match_end;
+
+ g_return_if_fail (EMPATHY_IS_CHAT_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);
+ }
+
+ *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);
+ }
+
+ *can_do_next = empathy_text_iter_forward_search (&iter_at_mark,
+ search_criteria,
+ &iter_match_start,
+ &iter_match_end,
+ NULL);
+ }
+}
+
+void
+empathy_chat_view_highlight (EmpathyChatView *view,
+ const gchar *text)
+{
+ 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_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, "highlight",
+ &iter_start,
+ &iter_end);
+
+ if (G_STR_EMPTY (text)) {
+ return;
+ }
+
+ while (1) {
+ 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, "highlight",
+ &iter_match_start,
+ &iter_match_end);
+
+ iter = iter_match_end;
+ gtk_text_iter_forward_char (&iter);
+ }
+}
+
+void
+empathy_chat_view_copy_clipboard (EmpathyChatView *view)
+{
+ GtkTextBuffer *buffer;
+ GtkClipboard *clipboard;
+
+ g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
+
+ buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
+ clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
+
+ gtk_text_buffer_copy_clipboard (buffer, clipboard);
+}
+
+EmpathyTheme *
+empathy_chat_view_get_theme (EmpathyChatView *view)
+{
+ EmpathyChatViewPriv *priv;
+
+ g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), NULL);
+
+ priv = GET_PRIV (view);
+
+ return priv->theme;
+}
+
+static void
+chat_view_theme_notify_cb (EmpathyTheme *theme,
+ GParamSpec *param,
+ EmpathyChatView *view)
+{
+ empathy_theme_update_view (theme, view);
+}
+
+void
+empathy_chat_view_set_theme (EmpathyChatView *view, EmpathyTheme *theme)
+{
+ EmpathyChatViewPriv *priv;
+
+ g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
+ g_return_if_fail (EMPATHY_IS_THEME (theme));
+
+ priv = GET_PRIV (view);
+
+ if (priv->theme) {
+ g_signal_handlers_disconnect_by_func (priv->theme,
+ chat_view_theme_notify_cb,
+ view);
+ g_object_unref (priv->theme);
+ }
+
+ priv->theme = g_object_ref (theme);
+
+ empathy_theme_update_view (theme, view);
+ g_signal_connect (priv->theme, "notify",
+ G_CALLBACK (chat_view_theme_notify_cb),
+ view);
+
+ /* FIXME: Redraw all messages using the new theme */
+}
+
+void
+empathy_chat_view_set_margin (EmpathyChatView *view,
+ gint margin)
+{
+ EmpathyChatViewPriv *priv;
+
+ g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
+
+ priv = GET_PRIV (view);
+
+ g_object_set (view,
+ "left-margin", margin,
+ "right-margin", margin,
+ NULL);
+}
+
+GtkWidget *
+empathy_chat_view_get_smiley_menu (GCallback callback,
+ gpointer user_data)
+{
+ EmpathySmileyManager *smiley_manager;
+ GSList *smileys, *l;
+ GtkWidget *menu;
+ gint x = 0;
+ gint y = 0;
+
+ g_return_val_if_fail (callback != NULL, NULL);
+
+ menu = gtk_menu_new ();
+
+ smiley_manager = empathy_smiley_manager_new ();
+ smileys = empathy_smiley_manager_get_all (smiley_manager);
+ for (l = smileys; l; l = l->next) {
+ EmpathySmiley *smiley;
+ GtkWidget *item;
+ GtkWidget *image;
+
+ smiley = l->data;
+ image = gtk_image_new_from_pixbuf (smiley->pixbuf);
+
+ item = gtk_image_menu_item_new_with_label ("");
+ gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
+
+ gtk_menu_attach (GTK_MENU (menu), item,
+ x, x + 1, y, y + 1);
+
+ gtk_widget_set_tooltip_text (item, smiley->str);
+
+ g_object_set_data (G_OBJECT (item), "smiley_text", smiley->str);
+ g_signal_connect (item, "activate", callback, user_data);
+
+ if (x > 3) {
+ y++;
+ x = 0;
+ } else {
+ x++;
+ }
+ }
+ g_object_unref (smiley_manager);
+
+ gtk_widget_show_all (menu);
+
+ return menu;
+}
+
+time_t
+empathy_chat_view_get_last_timestamp (EmpathyChatView *view)
+{
+ EmpathyChatViewPriv *priv;
+
+ g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), 0);
+
+ priv = GET_PRIV (view);
+
+ return priv->last_timestamp;
+}
+
+void
+empathy_chat_view_set_last_timestamp (EmpathyChatView *view,
+ time_t timestamp)
+{
+ EmpathyChatViewPriv *priv;
+
+ g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view));
+
+ priv = GET_PRIV (view);
+
+ priv->last_timestamp = timestamp;
+}
+
+EmpathyContact *
+empathy_chat_view_get_last_contact (EmpathyChatView *view)
+{
+ EmpathyChatViewPriv *priv;
+
+ g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), NULL);
+
+ priv = GET_PRIV (view);
+
+ return priv->last_contact;
+}
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-02 09:31:15 +0800