/* -*- 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 * Richard Hult * Martyn Russell */ #include "config.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "empathy-chat-simple-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 /* 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 (EmpathyChatSimpleView *view); static void chat_view_system_font_update (EmpathyChatSimpleView *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 (EmpathyChatSimpleView *view, GtkMenu *menu, gpointer user_data); static gboolean chat_view_event_cb (EmpathyChatSimpleView *view, GdkEventMotion *event, GtkTextTag *tag); static gboolean chat_view_url_event_cb (GtkTextTag *tag, GObject *object, GdkEvent *event, GtkTextIter *iter, EmpathyChatView *view); 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, EmpathyChatSimpleView *view); static gboolean chat_view_is_scrolled_down (EmpathyChatSimpleView *view); static void chat_view_theme_changed_cb (EmpathyThemeManager *manager, EmpathyChatSimpleView *view); static void chat_view_theme_notify_cb (EmpathyTheme *theme, GParamSpec *param, EmpathyChatSimpleView *view); void empathy_chat_simple_view_append_message (EmpathyChatView *view, EmpathyMessage *msg); void empathy_chat_simple_view_append_event (EmpathyChatView *view, const gchar *str); void empathy_chat_simple_view_append_button (EmpathyChatView *view, const gchar *message, GtkWidget *button1, GtkWidget *button2); void empathy_chat_simple_view_set_margin (EmpathyChatView *view, gint margin); void empathy_chat_simple_view_scroll (EmpathyChatView *view, gboolean allow_scrolling); void empathy_chat_simple_view_scroll_down (EmpathyChatView *view); gboolean empathy_chat_simple_view_get_selection_bounds (EmpathyChatView *view, GtkTextIter *start, GtkTextIter *end); void empathy_chat_simple_view_clear (EmpathyChatView *view); gboolean empathy_chat_simple_view_find_previous (EmpathyChatView *view, const gchar *search_criteria, gboolean new_search); gboolean empathy_chat_simple_view_find_next (EmpathyChatView *view, const gchar *search_criteria, gboolean new_search); void empathy_chat_simple_view_find_abilities (EmpathyChatView *view, const gchar *search_criteria, gboolean *can_do_previous, gboolean *can_do_next); void empathy_chat_simple_view_highlight (EmpathyChatView *view, const gchar *text); void empathy_chat_simple_view_copy_clipboard (EmpathyChatView *view); EmpathyTheme * empathy_chat_simple_view_get_theme (EmpathyChatView *view); void empathy_chat_simple_view_set_theme (EmpathyChatView *view, EmpathyTheme *theme); void empathy_chat_simple_view_set_margin (EmpathyChatView *view, gint margin); time_t empathy_chat_simple_view_get_last_timestamp (EmpathyChatView *view); void empathy_chat_simple_view_set_last_timestamp (EmpathyChatView *view, time_t timestamp); EmpathyContact * empathy_chat_simple_view_get_last_contact (EmpathyChatView *view); static void chat_view_iface_init (EmpathyChatViewIface *iface); G_DEFINE_TYPE_WITH_CODE (EmpathyChatSimpleView, empathy_chat_simple_view, GTK_TYPE_TEXT_VIEW, G_IMPLEMENT_INTERFACE (EMPATHY_TYPE_CHAT_VIEW, chat_view_iface_init)); static void empathy_chat_simple_view_class_init (EmpathyChatSimpleViewClass *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 (EmpathyChatSimpleViewPriv)); } static void empathy_chat_simple_view_init (EmpathyChatSimpleView *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 (), EMPATHY_CHAT_VIEW(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), EMPATHY_CHAT_VIEW(view), 0); } static void chat_view_finalize (GObject *object) { EmpathyChatSimpleView *view; EmpathyChatSimpleViewPriv *priv; view = EMPATHY_CHAT_SIMPLE_VIEW (object); priv = GET_PRIV (view); DEBUG ("%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_simple_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_SIMPLE_VIEW (widget)); GTK_WIDGET_CLASS (empathy_chat_simple_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 (EmpathyChatSimpleView *view) { EmpathyChatSimpleViewPriv *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), view); g_signal_connect (view, "motion-notify-event", G_CALLBACK (chat_view_event_cb), tag); } static void chat_view_system_font_update (EmpathyChatSimpleView *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) { EmpathyChatSimpleView *view; EmpathyChatSimpleViewPriv *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) { EmpathyChatSimpleView *view; EmpathyChatSimpleViewPriv *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 (EmpathyChatSimpleView *view, GtkMenu *menu, gpointer user_data) { EmpathyChatSimpleViewPriv *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 (EmpathyChatSimpleView *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, EmpathyChatView *view) { EmpathyChatViewPriv *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 void chat_view_open_address_cb (GtkMenuItem *menuitem, const gchar *url) { empathy_url_show (GTK_WIDGET (menuitem), 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, EmpathyChatSimpleView *view) { empathy_chat_simple_view_clear (EMPATHY_CHAT_VIEW(view)); } static gboolean chat_view_is_scrolled_down (EmpathyChatSimpleView *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 (EmpathyChatSimpleView *view) { EmpathyChatSimpleViewPriv *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, EmpathyChatSimpleView *view) { EmpathyChatSimpleViewPriv *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); } EmpathyChatSimpleView * empathy_chat_simple_view_new (void) { return g_object_new (EMPATHY_TYPE_CHAT_SIMPLE_VIEW, NULL); } /* Code stolen from pidgin/gtkimhtml.c */ static gboolean chat_view_scroll_cb (EmpathyChatSimpleView *view) { EmpathyChatSimpleViewPriv *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_simple_view_scroll_down (EmpathyChatView *view) { EmpathyChatSimpleViewPriv *priv = GET_PRIV (view); g_return_if_fail (EMPATHY_IS_CHAT_SIMPLE_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_view_scroll_cb, view); } void empathy_chat_simple_view_append_message (EmpathyChatView *view, EmpathyMessage *msg) { EmpathyChatSimpleViewPriv *priv = GET_PRIV (view); gboolean bottom; g_return_if_fail (EMPATHY_IS_CHAT_SIMPLE_VIEW (view)); g_return_if_fail (EMPATHY_IS_MESSAGE (msg)); if (!empathy_message_get_body (msg)) { return; } bottom = chat_view_is_scrolled_down (EMPATHY_CHAT_SIMPLE_VIEW (view)); chat_view_maybe_trim_buffer (EMPATHY_CHAT_SIMPLE_VIEW (view)); empathy_theme_append_message (priv->theme, EMPATHY_CHAT_VIEW(view), msg); if (bottom) { empathy_chat_simple_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_simple_view_append_event (EmpathyChatView *view, const gchar *str) { EmpathyChatSimpleViewPriv *priv; gboolean bottom; g_return_if_fail (EMPATHY_IS_CHAT_SIMPLE_VIEW (view)); g_return_if_fail (!G_STR_EMPTY (str)); priv = GET_PRIV (view); bottom = chat_view_is_scrolled_down (EMPATHY_CHAT_SIMPLE_VIEW (view)); chat_view_maybe_trim_buffer (EMPATHY_CHAT_SIMPLE_VIEW (view)); empathy_theme_append_event (priv->theme, EMPATHY_CHAT_VIEW(view), str); if (bottom) { empathy_chat_simple_view_scroll_down (view); } if (priv->last_contact) { g_object_unref (priv->last_contact); priv->last_contact = NULL; } } void empathy_chat_simple_view_append_button (EmpathyChatView *view, const gchar *message, GtkWidget *button1, GtkWidget *button2) { EmpathyChatSimpleViewPriv *priv; GtkTextChildAnchor *anchor; GtkTextIter iter; gboolean bottom; const gchar *tag; g_return_if_fail (EMPATHY_IS_CHAT_SIMPLE_VIEW (view)); g_return_if_fail (button1 != NULL); priv = GET_PRIV (view); tag = "invite"; bottom = chat_view_is_scrolled_down (EMPATHY_CHAT_SIMPLE_VIEW (view)); empathy_theme_append_timestamp (priv->theme, EMPATHY_CHAT_VIEW(view), NULL, TRUE, TRUE); if (message) { empathy_theme_append_text (priv->theme, EMPATHY_CHAT_VIEW(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_simple_view_scroll_down (EMPATHY_CHAT_VIEW(view)); } if (priv->last_contact) { g_object_unref (priv->last_contact); priv->last_contact = NULL; } } void empathy_chat_simple_view_scroll (EmpathyChatView *view, gboolean allow_scrolling) { EmpathyChatSimpleViewPriv *priv = GET_PRIV (view); g_return_if_fail (EMPATHY_IS_CHAT_SIMPLE_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_simple_view_get_selection_bounds (EmpathyChatView *view, GtkTextIter *start, GtkTextIter *end) { GtkTextBuffer *buffer; g_return_val_if_fail (EMPATHY_IS_CHAT_SIMPLE_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_simple_view_clear (EmpathyChatView *view) { GtkTextBuffer *buffer; EmpathyChatSimpleViewPriv *priv; g_return_if_fail (EMPATHY_IS_CHAT_SIMPLE_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_simple_view_find_previous (EmpathyChatView *view, const gchar *search_criteria, gboolean new_search) { EmpathyChatSimpleViewPriv *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_SIMPLE_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_simple_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_simple_view_find_next (EmpathyChatView *view, const gchar *search_criteria, gboolean new_search) { EmpathyChatSimpleViewPriv *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_SIMPLE_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_simple_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_simple_view_find_abilities (EmpathyChatView *view, const gchar *search_criteria, gboolean *can_do_previous, gboolean *can_do_next) { EmpathyChatSimpleViewPriv *priv; GtkTextBuffer *buffer; GtkTextIter iter_at_mark; GtkTextIter iter_match_start; GtkTextIter iter_match_end; g_return_if_fail (EMPATHY_IS_CHAT_SIMPLE_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_simple_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_SIMPLE_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_simple_view_copy_clipboard (EmpathyChatView *view) { GtkTextBuffer *buffer; GtkClipboard *clipboard; g_return_if_fail (EMPATHY_IS_CHAT_SIMPLE_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_simple_view_get_theme (EmpathyChatView *view) { EmpathyChatSimpleViewPriv *priv; g_return_val_if_fail (EMPATHY_IS_CHAT_SIMPLE_VIEW (view), NULL); priv = GET_PRIV (view); return priv->theme; } static void chat_view_theme_notify_cb (EmpathyTheme *theme, GParamSpec *param, EmpathyChatSimpleView *view) { empathy_theme_update_view (theme, EMPATHY_CHAT_VIEW(view)); } void empathy_chat_simple_view_set_theme (EmpathyChatView *view, EmpathyTheme *theme) { EmpathyChatSimpleViewPriv *priv; g_return_if_fail (EMPATHY_IS_CHAT_SIMPLE_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, EMPATHY_CHAT_SIMPLE_VIEW (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), EMPATHY_CHAT_SIMPLE_VIEW (view)); /* FIXME: Redraw all messages using the new theme */ } void empathy_chat_simple_view_set_margin (EmpathyChatView *view, gint margin) { EmpathyChatSimpleViewPriv *priv; g_return_if_fail (EMPATHY_IS_CHAT_SIMPLE_VIEW (view)); priv = GET_PRIV (view); g_object_set (view, "left-margin", margin, "right-margin", margin, NULL); } time_t empathy_chat_simple_view_get_last_timestamp (EmpathyChatView *view) { EmpathyChatSimpleViewPriv *priv; g_return_val_if_fail (EMPATHY_IS_CHAT_SIMPLE_VIEW (view), 0); priv = GET_PRIV (view); return priv->last_timestamp; } void empathy_chat_simple_view_set_last_timestamp (EmpathyChatView *view, time_t timestamp) { EmpathyChatSimpleViewPriv *priv; g_return_if_fail (EMPATHY_IS_CHAT_SIMPLE_VIEW (view)); priv = GET_PRIV (view); priv->last_timestamp = timestamp; } EmpathyContact * empathy_chat_simple_view_get_last_contact (EmpathyChatView *view) { EmpathyChatSimpleViewPriv *priv; g_return_val_if_fail (EMPATHY_IS_CHAT_SIMPLE_VIEW (view), NULL); priv = GET_PRIV (view); return priv->last_contact; } static void chat_view_iface_init (EmpathyChatViewIface *iface) { iface->append_message = empathy_chat_simple_view_append_message; iface->append_event = empathy_chat_simple_view_append_event; iface->append_button = empathy_chat_simple_view_append_button; iface->set_margin = empathy_chat_simple_view_set_margin; iface->scroll = empathy_chat_simple_view_scroll; iface->scroll_down = empathy_chat_simple_view_scroll_down; iface->get_selection_bounds = empathy_chat_simple_view_get_selection_bounds; iface->clear = empathy_chat_simple_view_clear; iface->find_previous = empathy_chat_simple_view_find_previous; iface->find_next = empathy_chat_simple_view_find_next; iface->find_abilities = empathy_chat_simple_view_find_abilities; iface->highlight = empathy_chat_simple_view_highlight; iface->copy_clipboard = empathy_chat_simple_view_copy_clipboard; iface->get_theme = empathy_chat_simple_view_get_theme; iface->set_theme = empathy_chat_simple_view_set_theme; iface->get_last_timestamp = empathy_chat_simple_view_get_last_timestamp; iface->set_last_timestamp = empathy_chat_simple_view_set_last_timestamp; iface->get_last_contact = empathy_chat_simple_view_get_last_contact; }