From cb5022e708a8e7e38b98ffdd9357d95db90badd7 Mon Sep 17 00:00:00 2001 From: Xavier Claessens Date: Tue, 16 Dec 2008 09:24:15 +0000 Subject: Rename EmpathyChatSimpleView to EmpathyChatTextView svn path=/trunk/; revision=1987 --- libempathy-gtk/empathy-chat-text-view.c | 1236 +++++++++++++++++++++++++++++++ 1 file changed, 1236 insertions(+) create mode 100644 libempathy-gtk/empathy-chat-text-view.c (limited to 'libempathy-gtk/empathy-chat-text-view.c') diff --git a/libempathy-gtk/empathy-chat-text-view.c b/libempathy-gtk/empathy-chat-text-view.c new file mode 100644 index 000000000..b36d16103 --- /dev/null +++ b/libempathy-gtk/empathy-chat-text-view.c @@ -0,0 +1,1236 @@ +/* -*- 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., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + * + * Authors: Mikael Hallendal + * Richard Hult + * Martyn Russell + * Xavier Claessens + */ + +#include "config.h" + +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#include + +#include "empathy-chat-text-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, EmpathyChatTextView) + +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; +} EmpathyChatTextViewPriv; + +static void chat_text_view_iface_init (EmpathyChatViewIface *iface); + +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)); + +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_setup_tags (EmpathyChatTextView *view) +{ + EmpathyChatTextViewPriv *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_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) +{ + 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_text_view_notify_system_font_cb (EmpathyConf *conf, + const gchar *key, + gpointer user_data) +{ + EmpathyChatTextView *view = user_data; + EmpathyChatTextViewPriv *priv = GET_PRIV (view); + gboolean show_avatars = FALSE; + + chat_text_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_text_view_notify_show_avatars_cb (EmpathyConf *conf, + const gchar *key, + gpointer user_data) +{ + EmpathyChatTextView *view; + EmpathyChatTextViewPriv *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_text_view_clear_view_cb (GtkMenuItem *menuitem, EmpathyChatTextView *view) +{ + empathy_chat_view_clear (EMPATHY_CHAT_VIEW (view)); +} + +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_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_text_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_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) +{ + 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_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, "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_theme_changed_cb (EmpathyThemeManager *manager, + EmpathyChatTextView *view) +{ + EmpathyChatTextViewPriv *priv; + gboolean show_avatars = FALSE; + + priv = GET_PRIV (view); + + empathy_theme_manager_apply_saved (manager, EMPATHY_CHAT_VIEW (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); +} + +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_TEXT_VIEW (widget)->vadjustment; + gtk_adjustment_set_value (adj, adj->upper - adj->page_size); + } +} + +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_theme_notify_cb (EmpathyTheme *theme, + GParamSpec *param, + EmpathyChatTextView *view) +{ + empathy_theme_update_view (theme, EMPATHY_CHAT_VIEW (view)); +} + +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); + + 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_text_view_theme_notify_cb, + view); + g_object_unref (priv->theme); + } + + G_OBJECT_CLASS (empathy_chat_text_view_parent_class)->finalize (object); +} + +static void +empathy_chat_text_view_class_init (EmpathyChatTextViewClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass); + + object_class->finalize = chat_text_view_finalize; + widget_class->size_allocate = chat_text_view_size_allocate; + widget_class->drag_motion = chat_text_view_drag_motion; + + g_type_class_add_private (object_class, sizeof (EmpathyChatTextViewPriv)); +} + +static void +empathy_chat_text_view_init (EmpathyChatTextView *view) +{ + gboolean show_avatars; + 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; + + 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_text_view_notify_system_font_cb, + view); + chat_text_view_system_font_update (view); + + priv->notify_show_avatars_id = + empathy_conf_notify_add (empathy_conf_get (), + EMPATHY_PREFS_UI_SHOW_AVATARS, + chat_text_view_notify_show_avatars_cb, + view); + + chat_text_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_text_view_populate_popup), + NULL); + + g_signal_connect_object (empathy_theme_manager_get (), + "theme-changed", + G_CALLBACK (chat_text_view_theme_changed_cb), + EMPATHY_CHAT_VIEW(view), + 0); +} + +EmpathyChatTextView * +empathy_chat_text_view_new (void) +{ + return g_object_new (EMPATHY_TYPE_CHAT_TEXT_VIEW, NULL); +} + +/* 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_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; +} + +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) +{ + EmpathyChatTextViewPriv *priv = GET_PRIV (view); + gboolean bottom; + + 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 (EMPATHY_CHAT_TEXT_VIEW (view)); + + chat_text_view_maybe_trim_buffer (EMPATHY_CHAT_TEXT_VIEW (view)); + + empathy_theme_append_message (priv->theme, EMPATHY_CHAT_VIEW(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)); +} + +static void +chat_text_view_append_event (EmpathyChatView *view, + const gchar *str) +{ + EmpathyChatTextViewPriv *priv; + gboolean bottom; + + g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view)); + g_return_if_fail (!G_STR_EMPTY (str)); + + priv = GET_PRIV (view); + + bottom = chat_text_view_is_scrolled_down (EMPATHY_CHAT_TEXT_VIEW (view)); + + chat_text_view_maybe_trim_buffer (EMPATHY_CHAT_TEXT_VIEW (view)); + + empathy_theme_append_event (priv->theme, EMPATHY_CHAT_VIEW(view), str); + + if (bottom) { + chat_text_view_scroll_down (view); + } + + if (priv->last_contact) { + g_object_unref (priv->last_contact); + priv->last_contact = NULL; + } +} + +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; +} + +static gboolean +chat_text_view_find_previous (EmpathyChatView *view, + const gchar *search_criteria, + gboolean new_search) +{ + 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 (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 = chat_text_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; +} + +static gboolean +chat_text_view_find_next (EmpathyChatView *view, + const gchar *search_criteria, + gboolean new_search) +{ + 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 (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 = chat_text_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; +} + +static void +chat_text_view_find_abilities (EmpathyChatView *view, + const gchar *search_criteria, + 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); + } + + *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); + } +} + +static void +chat_text_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_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, "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); + } +} + +static void +chat_text_view_copy_clipboard (EmpathyChatView *view) +{ + GtkTextBuffer *buffer; + GtkClipboard *clipboard; + + 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); + + gtk_text_buffer_copy_clipboard (buffer, clipboard); +} + +static EmpathyTheme * +chat_text_view_get_theme (EmpathyChatView *view) +{ + EmpathyChatTextViewPriv *priv; + + g_return_val_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view), NULL); + + priv = GET_PRIV (view); + + return priv->theme; +} + +static void +chat_text_view_set_theme (EmpathyChatView *view, EmpathyTheme *theme) +{ + EmpathyChatTextViewPriv *priv; + + g_return_if_fail (EMPATHY_IS_CHAT_TEXT_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_text_view_theme_notify_cb, + EMPATHY_CHAT_TEXT_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_text_view_theme_notify_cb), + EMPATHY_CHAT_TEXT_VIEW (view)); + + /* FIXME: Redraw all messages using the new theme */ +} + +static void +chat_text_view_set_margin (EmpathyChatView *view, + gint margin) +{ + EmpathyChatTextViewPriv *priv; + + g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view)); + + priv = GET_PRIV (view); + + g_object_set (view, + "left-margin", margin, + "right-margin", margin, + NULL); +} + +static time_t +chat_text_view_get_last_timestamp (EmpathyChatView *view) +{ + EmpathyChatTextViewPriv *priv; + + g_return_val_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view), 0); + + priv = GET_PRIV (view); + + return priv->last_timestamp; +} + +static void +chat_text_view_set_last_timestamp (EmpathyChatView *view, + time_t timestamp) +{ + EmpathyChatTextViewPriv *priv; + + g_return_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view)); + + priv = GET_PRIV (view); + + priv->last_timestamp = timestamp; +} + +static EmpathyContact * +chat_text_view_get_last_contact (EmpathyChatView *view) +{ + EmpathyChatTextViewPriv *priv; + + g_return_val_if_fail (EMPATHY_IS_CHAT_TEXT_VIEW (view), NULL); + + priv = GET_PRIV (view); + + return priv->last_contact; +} + +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->set_margin = chat_text_view_set_margin; + 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; + iface->get_theme = chat_text_view_get_theme; + iface->set_theme = chat_text_view_set_theme; + iface->get_last_timestamp = chat_text_view_get_last_timestamp; + iface->set_last_timestamp = chat_text_view_set_last_timestamp; + iface->get_last_contact = chat_text_view_get_last_contact; +} + -- cgit v1.2.3