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Diffstat (limited to 'libempathy-gtk/empathy-chat-view.c')
| -rw-r--r-- | libempathy-gtk/empathy-chat-view.c | 2226 |
1 files changed, 2226 insertions, 0 deletions
diff --git a/libempathy-gtk/empathy-chat-view.c b/libempathy-gtk/empathy-chat-view.c new file mode 100644 index 000000000..fda268676 --- /dev/null +++ b/libempathy-gtk/empathy-chat-view.c @@ -0,0 +1,2226 @@ +/* -*- 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 <libmissioncontrol/mc-account.h> + +#include <libempathy/empathy-utils.h> +#include <libempathy/empathy-debug.h> +#include <libempathy/empathy-conf.h> + +#include "empathy-chat-view.h" +#include "empathy-chat.h" +#include "empathy-preferences.h" +#include "empathy-theme-manager.h" +#include "empathy-ui-utils.h" + +#define DEBUG_DOMAIN "ChatView" + +/* 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) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), EMPATHY_TYPE_CHAT_VIEW, EmpathyChatViewPriv)) + +typedef enum { + BLOCK_TYPE_NONE, + BLOCK_TYPE_SELF, + BLOCK_TYPE_OTHER, + BLOCK_TYPE_EVENT, + BLOCK_TYPE_TIME, + BLOCK_TYPE_INVITE +} BlockType; + +struct _EmpathyChatViewPriv { + GtkTextBuffer *buffer; + + gboolean irc_style; + time_t last_timestamp; + BlockType last_block_type; + + gboolean allow_scrolling; + guint scroll_timeout; + GTimer *scroll_time; + gboolean is_group_chat; + + 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; +}; + +typedef struct { + EmpathySmiley smiley; + const gchar *pattern; +} EmpathySmileyPattern; + +static const EmpathySmileyPattern smileys[] = { + /* Forward smileys. */ + { EMPATHY_SMILEY_NORMAL, ":)" }, + { EMPATHY_SMILEY_WINK, ";)" }, + { EMPATHY_SMILEY_WINK, ";-)" }, + { EMPATHY_SMILEY_BIGEYE, "=)" }, + { EMPATHY_SMILEY_NOSE, ":-)" }, + { EMPATHY_SMILEY_CRY, ":'(" }, + { EMPATHY_SMILEY_SAD, ":(" }, + { EMPATHY_SMILEY_SAD, ":-(" }, + { EMPATHY_SMILEY_SCEPTICAL, ":/" }, + { EMPATHY_SMILEY_SCEPTICAL, ":\\" }, + { EMPATHY_SMILEY_BIGSMILE, ":D" }, + { EMPATHY_SMILEY_BIGSMILE, ":-D" }, + { EMPATHY_SMILEY_INDIFFERENT, ":|" }, + { EMPATHY_SMILEY_TOUNGE, ":p" }, + { EMPATHY_SMILEY_TOUNGE, ":-p" }, + { EMPATHY_SMILEY_TOUNGE, ":P" }, + { EMPATHY_SMILEY_TOUNGE, ":-P" }, + { EMPATHY_SMILEY_TOUNGE, ";p" }, + { EMPATHY_SMILEY_TOUNGE, ";-p" }, + { EMPATHY_SMILEY_TOUNGE, ";P" }, + { EMPATHY_SMILEY_TOUNGE, ";-P" }, + { EMPATHY_SMILEY_SHOCKED, ":o" }, + { EMPATHY_SMILEY_SHOCKED, ":-o" }, + { EMPATHY_SMILEY_SHOCKED, ":O" }, + { EMPATHY_SMILEY_SHOCKED, ":-O" }, + { EMPATHY_SMILEY_COOL, "8)" }, + { EMPATHY_SMILEY_COOL, "B)" }, + { EMPATHY_SMILEY_SORRY, "*|" }, + { EMPATHY_SMILEY_KISS, ":*" }, + { EMPATHY_SMILEY_SHUTUP, ":#" }, + { EMPATHY_SMILEY_SHUTUP, ":-#" }, + { EMPATHY_SMILEY_YAWN, "|O" }, + { EMPATHY_SMILEY_CONFUSED, ":S" }, + { EMPATHY_SMILEY_CONFUSED, ":s" }, + { EMPATHY_SMILEY_ANGEL, "<)" }, + { EMPATHY_SMILEY_OOOH, ":x" }, + { EMPATHY_SMILEY_LOOKAWAY, "*)" }, + { EMPATHY_SMILEY_LOOKAWAY, "*-)" }, + { EMPATHY_SMILEY_BLUSH, "*S" }, + { EMPATHY_SMILEY_BLUSH, "*s" }, + { EMPATHY_SMILEY_BLUSH, "*$" }, + { EMPATHY_SMILEY_COOLBIGSMILE, "8D" }, + { EMPATHY_SMILEY_ANGRY, ":@" }, + { EMPATHY_SMILEY_BOSS, "@)" }, + { EMPATHY_SMILEY_MONKEY, "#)" }, + { EMPATHY_SMILEY_SILLY, "O)" }, + { EMPATHY_SMILEY_SICK, "+o(" }, + + /* Backward smileys. */ + { EMPATHY_SMILEY_NORMAL, "(:" }, + { EMPATHY_SMILEY_WINK, "(;" }, + { EMPATHY_SMILEY_WINK, "(-;" }, + { EMPATHY_SMILEY_BIGEYE, "(=" }, + { EMPATHY_SMILEY_NOSE, "(-:" }, + { EMPATHY_SMILEY_CRY, ")':" }, + { EMPATHY_SMILEY_SAD, "):" }, + { EMPATHY_SMILEY_SAD, ")-:" }, + { EMPATHY_SMILEY_SCEPTICAL, "/:" }, + { EMPATHY_SMILEY_SCEPTICAL, "//:" }, + { EMPATHY_SMILEY_INDIFFERENT, "|:" }, + { EMPATHY_SMILEY_TOUNGE, "d:" }, + { EMPATHY_SMILEY_TOUNGE, "d-:" }, + { EMPATHY_SMILEY_TOUNGE, "d;" }, + { EMPATHY_SMILEY_TOUNGE, "d-;" }, + { EMPATHY_SMILEY_SHOCKED, "o:" }, + { EMPATHY_SMILEY_SHOCKED, "O:" }, + { EMPATHY_SMILEY_COOL, "(8" }, + { EMPATHY_SMILEY_COOL, "(B" }, + { EMPATHY_SMILEY_SORRY, "|*" }, + { EMPATHY_SMILEY_KISS, "*:" }, + { EMPATHY_SMILEY_SHUTUP, "#:" }, + { EMPATHY_SMILEY_SHUTUP, "#-:" }, + { EMPATHY_SMILEY_YAWN, "O|" }, + { EMPATHY_SMILEY_CONFUSED, "S:" }, + { EMPATHY_SMILEY_CONFUSED, "s:" }, + { EMPATHY_SMILEY_ANGEL, "(>" }, + { EMPATHY_SMILEY_OOOH, "x:" }, + { EMPATHY_SMILEY_LOOKAWAY, "(*" }, + { EMPATHY_SMILEY_LOOKAWAY, "(-*" }, + { EMPATHY_SMILEY_BLUSH, "S*" }, + { EMPATHY_SMILEY_BLUSH, "s*" }, + { EMPATHY_SMILEY_BLUSH, "$*" }, + { EMPATHY_SMILEY_ANGRY, "@:" }, + { EMPATHY_SMILEY_BOSS, "(@" }, + { EMPATHY_SMILEY_MONKEY, "#)" }, + { EMPATHY_SMILEY_SILLY, "(O" }, + { EMPATHY_SMILEY_SICK, ")o+" } +}; + +static void empathy_chat_view_class_init (EmpathyChatViewClass *klass); +static void empathy_chat_view_init (EmpathyChatView *view); +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 void chat_view_insert_text_with_emoticons (GtkTextBuffer *buf, + GtkTextIter *iter, + const gchar *str); +static gboolean chat_view_is_scrolled_down (EmpathyChatView *view); +static void chat_view_theme_changed_cb (EmpathyThemeManager *manager, + EmpathyChatView *view); +static void chat_view_maybe_append_date_and_time (EmpathyChatView *view, + EmpathyMessage *msg); +static void chat_view_append_spacing (EmpathyChatView *view); +static void chat_view_append_text (EmpathyChatView *view, + const gchar *body, + const gchar *tag); +static void chat_view_maybe_append_fancy_header (EmpathyChatView *view, + EmpathyMessage *msg); +static void chat_view_append_irc_action (EmpathyChatView *view, + EmpathyMessage *msg); +static void chat_view_append_fancy_action (EmpathyChatView *view, + EmpathyMessage *msg); +static void chat_view_append_irc_message (EmpathyChatView *view, + EmpathyMessage *msg); +static void chat_view_append_fancy_message (EmpathyChatView *view, + EmpathyMessage *msg); +static GdkPixbuf *chat_view_pad_to_size (GdkPixbuf *pixbuf, + gint width, + gint height, + gint extra_padding_right); + +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) +{ + EmpathyChatViewPriv *priv; + gboolean show_avatars; + + priv = GET_PRIV (view); + + priv->buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view)); + + priv->last_block_type = BLOCK_TYPE_NONE; + priv->last_timestamp = 0; + + priv->allow_scrolling = TRUE; + + priv->is_group_chat = FALSE; + + 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_manager_update_show_avatars (empathy_theme_manager_get (), + view, 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); + + empathy_debug (DEBUG_DOMAIN, "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); + } + + 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; + gboolean show_avatars = FALSE; + + view = user_data; + + 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_manager_update_show_avatars (empathy_theme_manager_get (), + view, 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_manager_update_show_avatars (empathy_theme_manager_get (), + view, 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 void +chat_view_insert_text_with_emoticons (GtkTextBuffer *buf, + GtkTextIter *iter, + const gchar *str) +{ + const gchar *p; + gunichar c, prev_c; + gint i; + gint match; + gint submatch; + gboolean use_smileys = FALSE; + + empathy_conf_get_bool (empathy_conf_get (), + EMPATHY_PREFS_CHAT_SHOW_SMILEYS, + &use_smileys); + + if (!use_smileys) { + gtk_text_buffer_insert (buf, iter, str, -1); + return; + } + + while (*str) { + gint smileys_index[G_N_ELEMENTS (smileys)]; + GdkPixbuf *pixbuf; + gint len; + const gchar *start; + + memset (smileys_index, 0, sizeof (smileys_index)); + + match = -1; + submatch = -1; + p = str; + prev_c = 0; + + while (*p) { + c = g_utf8_get_char (p); + + if (match != -1 && g_unichar_isspace (c)) { + break; + } else { + match = -1; + } + + if (submatch != -1 || prev_c == 0 || g_unichar_isspace (prev_c)) { + submatch = -1; + + for (i = 0; i < G_N_ELEMENTS (smileys); i++) { + /* Only try to match if we already have + * a beginning match for the pattern, or + * if it's the first character in the + * pattern, if it's not in the middle of + * a word. + */ + if (((smileys_index[i] == 0 && (prev_c == 0 || g_unichar_isspace (prev_c))) || + smileys_index[i] > 0) && + smileys[i].pattern[smileys_index[i]] == c) { + submatch = i; + + smileys_index[i]++; + if (!smileys[i].pattern[smileys_index[i]]) { + match = i; + } + } else { + smileys_index[i] = 0; + } + } + } + + prev_c = c; + p = g_utf8_next_char (p); + } + + if (match == -1) { + gtk_text_buffer_insert (buf, iter, str, -1); + return; + } + + start = p - strlen (smileys[match].pattern); + + if (start > str) { + len = start - str; + gtk_text_buffer_insert (buf, iter, str, len); + } + + pixbuf = empathy_chat_view_get_smiley_image (smileys[match].smiley); + gtk_text_buffer_insert_pixbuf (buf, iter, pixbuf); + + gtk_text_buffer_insert (buf, iter, " ", 1); + + str = g_utf8_find_next_char (p, NULL); + } +} + +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_maybe_append_date_and_time (EmpathyChatView *view, + EmpathyMessage *msg) +{ + EmpathyChatViewPriv *priv; + const gchar *tag; + time_t timestamp; + GDate *date, *last_date; + GtkTextIter iter; + gboolean append_date, append_time; + GString *str; + + priv = GET_PRIV (view); + + if (priv->irc_style) { + tag = "irc-time"; + } else { + tag = "fancy-time"; + } + + if (priv->last_block_type == BLOCK_TYPE_TIME) { + return; + } + + str = g_string_new (NULL); + + timestamp = 0; + if (msg) { + timestamp = empathy_message_get_timestamp (msg); + } + + if (timestamp <= 0) { + timestamp = empathy_time_get_current (); + } + + date = g_date_new (); + g_date_set_time (date, timestamp); + + last_date = g_date_new (); + g_date_set_time (last_date, priv->last_timestamp); + + append_date = FALSE; + append_time = FALSE; + + if (g_date_compare (date, last_date) > 0) { + append_date = TRUE; + append_time = TRUE; + } + + if (priv->last_timestamp + TIMESTAMP_INTERVAL < timestamp) { + append_time = TRUE; + } + + if (append_time || append_date) { + chat_view_append_spacing (view); + + g_string_append (str, "- "); + } + + if (append_date) { + gchar buf[256]; + + g_date_strftime (buf, 256, _("%A %d %B %Y"), date); + g_string_append (str, buf); + + if (append_time) { + g_string_append (str, ", "); + } + } + + g_date_free (date); + g_date_free (last_date); + + if (append_time) { + gchar *tmp; + + tmp = empathy_time_to_string_local (timestamp, EMPATHY_TIME_FORMAT_DISPLAY_SHORT); + g_string_append (str, tmp); + g_free (tmp); + } + + if (append_time || append_date) { + g_string_append (str, " -\n"); + + gtk_text_buffer_get_end_iter (priv->buffer, &iter); + gtk_text_buffer_insert_with_tags_by_name (priv->buffer, + &iter, + str->str, -1, + tag, + NULL); + + priv->last_block_type = BLOCK_TYPE_TIME; + priv->last_timestamp = timestamp; + } + + g_string_free (str, TRUE); +} + +static void +chat_view_append_spacing (EmpathyChatView *view) +{ + EmpathyChatViewPriv *priv; + const gchar *tag; + GtkTextIter iter; + + priv = GET_PRIV (view); + + if (priv->irc_style) { + tag = "irc-spacing"; + } else { + tag = "fancy-spacing"; + } + + gtk_text_buffer_get_end_iter (priv->buffer, &iter); + gtk_text_buffer_insert_with_tags_by_name (priv->buffer, + &iter, + "\n", + -1, + "cut", + tag, + NULL); +} + +static void +chat_view_append_text (EmpathyChatView *view, + const gchar *body, + const gchar *tag) +{ + EmpathyChatViewPriv *priv; + GtkTextIter start_iter, end_iter; + GtkTextMark *mark; + GtkTextIter iter; + gint num_matches, i; + GArray *start, *end; + const gchar *link_tag; + + priv = GET_PRIV (view); + + if (priv->irc_style) { + link_tag = "irc-link"; + } else { + link_tag = "fancy-link"; + } + + gtk_text_buffer_get_end_iter (priv->buffer, &start_iter); + mark = gtk_text_buffer_create_mark (priv->buffer, NULL, &start_iter, TRUE); + + start = g_array_new (FALSE, FALSE, sizeof (gint)); + end = g_array_new (FALSE, FALSE, sizeof (gint)); + + num_matches = empathy_regex_match (EMPATHY_REGEX_ALL, body, start, end); + + if (num_matches == 0) { + gtk_text_buffer_get_end_iter (priv->buffer, &iter); + chat_view_insert_text_with_emoticons (priv->buffer, &iter, body); + } else { + gint last = 0; + gint s = 0, e = 0; + gchar *tmp; + + for (i = 0; i < num_matches; i++) { + s = g_array_index (start, gint, i); + e = g_array_index (end, gint, i); + + if (s > last) { + tmp = empathy_substring (body, last, s); + + gtk_text_buffer_get_end_iter (priv->buffer, &iter); + chat_view_insert_text_with_emoticons (priv->buffer, + &iter, + tmp); + g_free (tmp); + } + + tmp = empathy_substring (body, s, e); + + gtk_text_buffer_get_end_iter (priv->buffer, &iter); + gtk_text_buffer_insert_with_tags_by_name (priv->buffer, + &iter, + tmp, + -1, + link_tag, + "link", + NULL); + + g_free (tmp); + + last = e; + } + + if (e < strlen (body)) { + tmp = empathy_substring (body, e, strlen (body)); + + gtk_text_buffer_get_end_iter (priv->buffer, &iter); + chat_view_insert_text_with_emoticons (priv->buffer, + &iter, + tmp); + g_free (tmp); + } + } + + g_array_free (start, TRUE); + g_array_free (end, TRUE); + + gtk_text_buffer_get_end_iter (priv->buffer, &iter); + gtk_text_buffer_insert (priv->buffer, &iter, "\n", 1); + + /* Apply the style to the inserted text. */ + gtk_text_buffer_get_iter_at_mark (priv->buffer, &start_iter, mark); + gtk_text_buffer_get_end_iter (priv->buffer, &end_iter); + + gtk_text_buffer_apply_tag_by_name (priv->buffer, + tag, + &start_iter, + &end_iter); + + gtk_text_buffer_delete_mark (priv->buffer, mark); +} + +static void +chat_view_maybe_append_fancy_header (EmpathyChatView *view, + EmpathyMessage *msg) +{ + EmpathyChatViewPriv *priv; + EmpathyContact *sender; + const gchar *name; + gboolean header; + GtkTextIter iter; + gchar *tmp; + const gchar *tag; + const gchar *avatar_tag; + const gchar *line_top_tag; + const gchar *line_bottom_tag; + gboolean from_self; + GdkPixbuf *pixbuf = NULL; + GdkPixbuf *avatar = NULL; + + priv = GET_PRIV (view); + + sender = empathy_message_get_sender (msg); + name = empathy_contact_get_name (sender); + from_self = empathy_contact_is_user (sender); + + empathy_debug (DEBUG_DOMAIN, "Maybe add fancy header"); + + if (from_self) { + tag = "fancy-header-self"; + line_top_tag = "fancy-line-top-self"; + line_bottom_tag = "fancy-line-bottom-self"; + } else { + tag = "fancy-header-other"; + line_top_tag = "fancy-line-top-other"; + line_bottom_tag = "fancy-line-bottom-other"; + } + + header = FALSE; + + /* Only insert a header if the previously inserted block is not the same + * as this one. This catches all the different cases: + */ + if (priv->last_block_type != BLOCK_TYPE_SELF && + priv->last_block_type != BLOCK_TYPE_OTHER) { + header = TRUE; + } + else if (from_self && priv->last_block_type == BLOCK_TYPE_OTHER) { + header = TRUE; + } + else if (!from_self && priv->last_block_type == BLOCK_TYPE_SELF) { + header = TRUE; + } + else if (!from_self && + (!priv->last_contact || + !empathy_contact_equal (sender, priv->last_contact))) { + header = TRUE; + } + + if (!header) { + return; + } + + chat_view_append_spacing (view); + + gtk_text_buffer_get_end_iter (priv->buffer, &iter); + gtk_text_buffer_insert_with_tags_by_name (priv->buffer, + &iter, + "\n", + -1, + line_top_tag, + NULL); + + /* FIXME: we should have a cash of avatar pixbufs */ + pixbuf = empathy_pixbuf_avatar_from_contact_scaled (sender, 32, 32); + if (pixbuf) { + avatar = chat_view_pad_to_size (pixbuf, 32, 32, 6); + g_object_unref (pixbuf); + } + + if (avatar) { + GtkTextIter start; + + gtk_text_buffer_get_end_iter (priv->buffer, &iter); + gtk_text_buffer_insert_pixbuf (priv->buffer, &iter, avatar); + + gtk_text_buffer_get_end_iter (priv->buffer, &iter); + start = iter; + gtk_text_iter_backward_char (&start); + + if (from_self) { + gtk_text_buffer_apply_tag_by_name (priv->buffer, + "fancy-avatar-self", + &start, &iter); + avatar_tag = "fancy-header-self-avatar"; + } else { + gtk_text_buffer_apply_tag_by_name (priv->buffer, + "fancy-avatar-other", + &start, &iter); + avatar_tag = "fancy-header-other-avatar"; + } + + g_object_unref (avatar); + } else { + avatar_tag = NULL; + } + + tmp = g_strdup_printf ("%s\n", name); + + gtk_text_buffer_get_end_iter (priv->buffer, &iter); + gtk_text_buffer_insert_with_tags_by_name (priv->buffer, + &iter, + tmp, + -1, + tag, + avatar_tag, + NULL); + g_free (tmp); + + gtk_text_buffer_get_end_iter (priv->buffer, &iter); + gtk_text_buffer_insert_with_tags_by_name (priv->buffer, + &iter, + "\n", + -1, + line_bottom_tag, + NULL); +} + +static void +chat_view_append_irc_action (EmpathyChatView *view, + EmpathyMessage *msg) +{ + EmpathyChatViewPriv *priv; + EmpathyContact *sender; + const gchar *name; + GtkTextIter iter; + const gchar *body; + gchar *tmp; + const gchar *tag; + + priv = GET_PRIV (view); + + empathy_debug (DEBUG_DOMAIN, "Add IRC action"); + + sender = empathy_message_get_sender (msg); + name = empathy_contact_get_name (sender); + + if (empathy_contact_is_user (sender)) { + tag = "irc-action-self"; + } else { + tag = "irc-action-other"; + } + + if (priv->last_block_type != BLOCK_TYPE_SELF && + priv->last_block_type != BLOCK_TYPE_OTHER) { + chat_view_append_spacing (view); + } + + gtk_text_buffer_get_end_iter (priv->buffer, &iter); + + tmp = g_strdup_printf (" * %s ", name); + gtk_text_buffer_insert_with_tags_by_name (priv->buffer, + &iter, + tmp, + -1, + "cut", + tag, + NULL); + g_free (tmp); + + body = empathy_message_get_body (msg); + chat_view_append_text (view, body, tag); +} + +static void +chat_view_append_fancy_action (EmpathyChatView *view, + EmpathyMessage *msg) +{ + EmpathyChatViewPriv *priv; + EmpathyContact *sender; + const gchar *name; + const gchar *body; + GtkTextIter iter; + gchar *tmp; + const gchar *tag; + const gchar *line_tag; + + priv = GET_PRIV (view); + + empathy_debug (DEBUG_DOMAIN, "Add fancy action"); + + sender = empathy_message_get_sender (msg); + name = empathy_contact_get_name (sender); + + if (empathy_contact_is_user (sender)) { + tag = "fancy-action-self"; + line_tag = "fancy-line-self"; + } else { + tag = "fancy-action-other"; + line_tag = "fancy-line-other"; + } + + tmp = g_strdup_printf (" * %s ", name); + gtk_text_buffer_get_end_iter (priv->buffer, &iter); + gtk_text_buffer_insert_with_tags_by_name (priv->buffer, + &iter, + tmp, + -1, + tag, + NULL); + g_free (tmp); + + body = empathy_message_get_body (msg); + chat_view_append_text (view, body, tag); +} + +static void +chat_view_append_irc_message (EmpathyChatView *view, + EmpathyMessage *msg) +{ + EmpathyChatViewPriv *priv; + EmpathyContact *sender; + const gchar *name; + const gchar *body; + const gchar *nick_tag; + const gchar *body_tag; + GtkTextIter iter; + gchar *tmp; + + priv = GET_PRIV (view); + + empathy_debug (DEBUG_DOMAIN, "Add IRC message"); + + body = empathy_message_get_body (msg); + sender = empathy_message_get_sender (msg); + name = empathy_contact_get_name (sender); + + if (empathy_contact_is_user (sender)) { + nick_tag = "irc-nick-self"; + body_tag = "irc-body-self"; + } else { + if (empathy_chat_should_highlight_nick (msg)) { + nick_tag = "irc-nick-highlight"; + } else { + nick_tag = "irc-nick-other"; + } + + body_tag = "irc-body-other"; + } + + if (priv->last_block_type != BLOCK_TYPE_SELF && + priv->last_block_type != BLOCK_TYPE_OTHER) { + chat_view_append_spacing (view); + } + + gtk_text_buffer_get_end_iter (priv->buffer, &iter); + + /* The nickname. */ + tmp = g_strdup_printf ("%s: ", name); + gtk_text_buffer_insert_with_tags_by_name (priv->buffer, + &iter, + tmp, + -1, + "cut", + nick_tag, + NULL); + g_free (tmp); + + /* The text body. */ + chat_view_append_text (view, body, body_tag); +} + +static void +chat_view_append_fancy_message (EmpathyChatView *view, + EmpathyMessage *msg) +{ + EmpathyChatViewPriv *priv; + EmpathyContact *sender; + const gchar *body; + const gchar *tag; + + priv = GET_PRIV (view); + + sender = empathy_message_get_sender (msg); + + if (empathy_contact_is_user (sender)) { + tag = "fancy-body-self"; + } else { + tag = "fancy-body-other"; + + /* FIXME: Might want to support nick highlighting here... */ + } + + body = empathy_message_get_body (msg); + chat_view_append_text (view, body, tag); +} + +static void +chat_view_theme_changed_cb (EmpathyThemeManager *manager, + EmpathyChatView *view) +{ + EmpathyChatViewPriv *priv; + gboolean show_avatars = FALSE; + gboolean theme_rooms = FALSE; + + priv = GET_PRIV (view); + + priv->last_block_type = BLOCK_TYPE_NONE; + + empathy_conf_get_bool (empathy_conf_get (), + EMPATHY_PREFS_CHAT_THEME_CHAT_ROOM, + &theme_rooms); + if (!theme_rooms && priv->is_group_chat) { + empathy_theme_manager_apply (manager, view, NULL); + } else { + 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_manager_update_show_avatars (manager, view, 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; +} + +EmpathyChatView * +empathy_chat_view_new (void) +{ + return g_object_new (EMPATHY_TYPE_CHAT_VIEW, NULL); +} + +/* The name is optional, if NULL, the sender for msg is used. */ +void +empathy_chat_view_append_message (EmpathyChatView *view, + EmpathyMessage *msg) +{ + EmpathyChatViewPriv *priv; + EmpathyContact *sender; + const gchar *body; + gboolean scroll_down; + + g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view)); + g_return_if_fail (EMPATHY_IS_MESSAGE (msg)); + + priv = GET_PRIV (view); + + body = empathy_message_get_body (msg); + if (!body) { + return; + } + + scroll_down = chat_view_is_scrolled_down (view); + + chat_view_maybe_trim_buffer (view); + chat_view_maybe_append_date_and_time (view, msg); + + sender = empathy_message_get_sender (msg); + + if (!priv->irc_style) { + chat_view_maybe_append_fancy_header (view, msg); + } + + if (empathy_message_get_type (msg) == EMPATHY_MESSAGE_TYPE_ACTION) { + if (priv->irc_style) { + chat_view_append_irc_action (view, msg); + } else { + chat_view_append_fancy_action (view, msg); + } + } else { + if (priv->irc_style) { + chat_view_append_irc_message (view, msg); + } else { + chat_view_append_fancy_message (view, msg); + } + } + + /* Reset the last inserted contact. */ + if (priv->last_contact) { + g_object_unref (priv->last_contact); + } + + if (empathy_contact_is_user (sender)) { + priv->last_block_type = BLOCK_TYPE_SELF; + priv->last_contact = NULL; + } else { + priv->last_block_type = BLOCK_TYPE_OTHER; + priv->last_contact = g_object_ref (sender); + } + + if (scroll_down) { + empathy_chat_view_scroll_down (view); + } +} + +void +empathy_chat_view_append_event (EmpathyChatView *view, + const gchar *str) +{ + EmpathyChatViewPriv *priv; + gboolean bottom; + GtkTextIter iter; + gchar *msg; + const gchar *tag; + + 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); + + if (priv->irc_style) { + tag = "irc-event"; + msg = g_strdup_printf (" - %s\n", str); + } else { + tag = "fancy-event"; + msg = g_strdup_printf (" - %s\n", str); + } + + if (priv->last_block_type != BLOCK_TYPE_EVENT) { + /* Comment out for now. */ + /*chat_view_append_spacing (view);*/ + } + + chat_view_maybe_append_date_and_time (view, NULL); + + gtk_text_buffer_get_end_iter (priv->buffer, &iter); + + gtk_text_buffer_insert_with_tags_by_name (priv->buffer, &iter, + msg, -1, + tag, + NULL); + g_free (msg); + + if (bottom) { + empathy_chat_view_scroll_down (view); + } + + priv->last_block_type = BLOCK_TYPE_EVENT; +} + +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); + + if (priv->irc_style) { + tag = "irc-invite"; + } else { + tag = "fancy-invite"; + } + + bottom = chat_view_is_scrolled_down (view); + + chat_view_maybe_append_date_and_time (view, NULL); + + if (message) { + chat_view_append_text (view, message, tag); + } + + 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); + } + + priv->last_block_type = BLOCK_TYPE_INVITE; +} + +void +empathy_chat_view_scroll (EmpathyChatView *view, + gboolean allow_scrolling) +{ + EmpathyChatViewPriv *priv; + + g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view)); + + priv = GET_PRIV (view); + + priv->allow_scrolling = allow_scrolling; + + empathy_debug (DEBUG_DOMAIN, "Scrolling %s", + allow_scrolling ? "enabled" : "disabled"); +} + +/* 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; + } + + empathy_debug (DEBUG_DOMAIN, "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); + } +} + +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_block_type = BLOCK_TYPE_NONE; + 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); +} + +gboolean +empathy_chat_view_get_irc_style (EmpathyChatView *view) +{ + EmpathyChatViewPriv *priv; + + g_return_val_if_fail (EMPATHY_IS_CHAT_VIEW (view), FALSE); + + priv = GET_PRIV (view); + + return priv->irc_style; +} + +void +empathy_chat_view_set_irc_style (EmpathyChatView *view, + gboolean irc_style) +{ + EmpathyChatViewPriv *priv; + + g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view)); + + priv = GET_PRIV (view); + + priv->irc_style = irc_style; +} + +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); +} + +GdkPixbuf * +empathy_chat_view_get_smiley_image (EmpathySmiley smiley) +{ + static GdkPixbuf *pixbufs[EMPATHY_SMILEY_COUNT]; + static gboolean inited = FALSE; + + if (!inited) { + gint i; + + for (i = 0; i < EMPATHY_SMILEY_COUNT; i++) { + pixbufs[i] = empathy_pixbuf_from_smiley (i, GTK_ICON_SIZE_MENU); + } + + inited = TRUE; + } + + return pixbufs[smiley]; +} + +const gchar * +empathy_chat_view_get_smiley_text (EmpathySmiley smiley) +{ + gint i; + + for (i = 0; i < G_N_ELEMENTS (smileys); i++) { + if (smileys[i].smiley != smiley) { + continue; + } + + return smileys[i].pattern; + } + + return NULL; +} + +GtkWidget * +empathy_chat_view_get_smiley_menu (GCallback callback, + gpointer user_data, + GtkTooltips *tooltips) +{ + GtkWidget *menu; + gint x; + gint y; + gint i; + + g_return_val_if_fail (callback != NULL, NULL); + + menu = gtk_menu_new (); + + for (i = 0, x = 0, y = 0; i < EMPATHY_SMILEY_COUNT; i++) { + GtkWidget *item; + GtkWidget *image; + GdkPixbuf *pixbuf; + const gchar *smiley_text; + + pixbuf = empathy_chat_view_get_smiley_image (i); + if (!pixbuf) { + continue; + } + + image = gtk_image_new_from_pixbuf (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); + + smiley_text = empathy_chat_view_get_smiley_text (i); + + gtk_tooltips_set_tip (tooltips, + item, + smiley_text, + NULL); + + g_object_set_data (G_OBJECT (item), "smiley_text", (gpointer) smiley_text); + g_signal_connect (item, "activate", callback, user_data); + + if (x > 3) { + y++; + x = 0; + } else { + x++; + } + } + + gtk_widget_show_all (menu); + + return menu; +} + +/* FIXME: Do we really need this? Better to do it internally only at setup time, + * we will never change it on the fly. + */ +void +empathy_chat_view_set_is_group_chat (EmpathyChatView *view, + gboolean is_group_chat) +{ + EmpathyChatViewPriv *priv; + gboolean theme_rooms = FALSE; + + g_return_if_fail (EMPATHY_IS_CHAT_VIEW (view)); + + priv = GET_PRIV (view); + + priv->is_group_chat = is_group_chat; + + empathy_conf_get_bool (empathy_conf_get (), + EMPATHY_PREFS_CHAT_THEME_CHAT_ROOM, + &theme_rooms); + + if (!theme_rooms && is_group_chat) { + empathy_theme_manager_apply (empathy_theme_manager_get (), + view, + NULL); + } else { + empathy_theme_manager_apply_saved (empathy_theme_manager_get (), + view); + } +} |