path: root/libempathy-gtk/empathy-group-chat.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * Copyright (C) 2002-2007 Imendio AB
 * Copyright (C) 2007 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 <micke@imendio.com>
 *          Richard Hult <richard@imendio.com>
 *          Martyn Russell <martyn@imendio.com>
 *          Xavier Claessens <xclaesse@gmail.com>
 */

#include "config.h"

#include <string.h>

#include <gdk/gdkkeysyms.h>
#include <gtk/gtk.h>
#include <glade/glade.h>
#include <glib/gi18n.h>

#include <libempathy/empathy-tp-chat.h>
#include <libempathy/empathy-tp-chatroom.h>
#include <libempathy/empathy-contact.h>
#include <libempathy/empathy-utils.h>
#include <libempathy/empathy-debug.h>

#include "empathy-group-chat.h"
#include "empathy-chat.h"
#include "empathy-chat-view.h"
#include "empathy-contact-list-store.h"
#include "empathy-contact-list-view.h"
//#include "empathy-chat-invite.h"
//#include "empathy-sound.h"
#include "empathy-images.h"
#include "empathy-ui-utils.h"

#define DEBUG_DOMAIN "GroupChat"

#define GET_PRIV(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), EMPATHY_TYPE_GROUP_CHAT, EmpathyGroupChatPriv))

struct _EmpathyGroupChatPriv {
    EmpathyContactListStore *store;
    EmpathyContactListView  *view;
    EmpathyTpChatroom      *tp_chat;

    GtkWidget              *widget;
    GtkWidget              *hpaned;
    GtkWidget              *vbox_left;
    GtkWidget              *scrolled_window_chat;
    GtkWidget              *scrolled_window_input;
    GtkWidget              *scrolled_window_contacts;
    GtkWidget              *hbox_topic;
    GtkWidget              *label_topic;

    gchar                  *topic;
    gchar                  *name;
    GCompletion            *completion;

    gint                    contacts_width;
    gboolean                contacts_visible;
};

static void          group_chat_finalize                 (GObject           *object);
static void          group_chat_create_ui                (EmpathyGroupChat  *chat);
static void          group_chat_widget_destroy_cb        (GtkWidget         *widget,
                              EmpathyGroupChat  *chat);
static void          group_chat_members_changed_cb       (EmpathyTpChatroom *tp_chat,
                              EmpathyContact    *contact,
                              EmpathyContact    *actor,
                              guint              reason,
                              gchar             *message,
                              gboolean           is_member,
                              EmpathyGroupChat  *chat);
static void          group_chat_topic_entry_activate_cb  (GtkWidget         *entry,
                              GtkDialog         *dialog);
static void          group_chat_topic_response_cb        (GtkWidget         *dialog,
                              gint               response,                
                              EmpathyGroupChat  *chat);
static const gchar * group_chat_get_name                 (EmpathyChat       *chat);
static gchar *       group_chat_get_tooltip              (EmpathyChat       *chat);
static const gchar * group_chat_get_status_icon_name     (EmpathyChat       *chat);
static GtkWidget *   group_chat_get_widget               (EmpathyChat       *chat);
static gboolean      group_chat_is_group_chat            (EmpathyChat       *chat);
static void          group_chat_set_tp_chat              (EmpathyChat       *chat,
                              EmpathyTpChat     *tp_chat);
static void          group_chat_subject_notify_cb        (EmpathyTpChat     *tp_chat,
                              GParamSpec        *param,
                              EmpathyGroupChat  *chat);
static void          group_chat_name_notify_cb           (EmpathyTpChat     *tp_chat,
                              GParamSpec        *param,
                              EmpathyGroupChat  *chat);
static gboolean      group_chat_key_press_event          (EmpathyChat       *chat,
                              GdkEventKey       *event);
static gint          group_chat_contacts_completion_func (const gchar       *s1,
                              const gchar       *s2,
                              gsize              n);

G_DEFINE_TYPE (EmpathyGroupChat, empathy_group_chat, EMPATHY_TYPE_CHAT)

static void
empathy_group_chat_class_init (EmpathyGroupChatClass *klass)
{
    GObjectClass    *object_class;
    EmpathyChatClass *chat_class;

    object_class = G_OBJECT_CLASS (klass);
    chat_class = EMPATHY_CHAT_CLASS (klass);

    object_class->finalize           = group_chat_finalize;

    chat_class->get_name             = group_chat_get_name;
    chat_class->get_tooltip          = group_chat_get_tooltip;
    chat_class->get_status_icon_name = group_chat_get_status_icon_name;
    chat_class->get_widget           = group_chat_get_widget;
    chat_class->is_group_chat        = group_chat_is_group_chat;
    chat_class->set_tp_chat          = group_chat_set_tp_chat;
    chat_class->key_press_event      = group_chat_key_press_event;

    g_type_class_add_private (object_class, sizeof (EmpathyGroupChatPriv));
}

static void
empathy_group_chat_init (EmpathyGroupChat *chat)
{
    EmpathyGroupChatPriv *priv;
    EmpathyChatView      *chatview;

    priv = GET_PRIV (chat);

    priv->contacts_visible = TRUE;

    chatview = EMPATHY_CHAT_VIEW (EMPATHY_CHAT (chat)->view);
    empathy_chat_view_set_is_group_chat (chatview, TRUE);

    group_chat_create_ui (chat);
}

static void
group_chat_finalize (GObject *object)
{
    EmpathyGroupChat     *chat;
    EmpathyGroupChatPriv *priv;

    empathy_debug (DEBUG_DOMAIN, "Finalized:%p", object);

    chat = EMPATHY_GROUP_CHAT (object);
    priv = GET_PRIV (chat);
    
    g_free (priv->name);
    g_free (priv->topic);
    g_object_unref (priv->store);
    g_object_unref (priv->tp_chat); 
    g_completion_free (priv->completion);

    G_OBJECT_CLASS (empathy_group_chat_parent_class)->finalize (object);
}

EmpathyGroupChat *
empathy_group_chat_new (McAccount *account,
            TpChan    *tp_chan)
{
    EmpathyGroupChat     *chat;
    EmpathyGroupChatPriv *priv;

    g_return_val_if_fail (MC_IS_ACCOUNT (account), NULL);
    g_return_val_if_fail (TELEPATHY_IS_CHAN (tp_chan), NULL);

    chat = g_object_new (EMPATHY_TYPE_GROUP_CHAT, NULL);

    priv = GET_PRIV (chat);

    EMPATHY_CHAT (chat)->account = g_object_ref (account);
    priv->tp_chat = empathy_tp_chatroom_new (account, tp_chan);
    empathy_chat_set_tp_chat (EMPATHY_CHAT (chat), EMPATHY_TP_CHAT (priv->tp_chat));

    return chat;
}

gboolean
empathy_group_chat_get_show_contacts (EmpathyGroupChat *chat)
{
    EmpathyGroupChat     *group_chat;
    EmpathyGroupChatPriv *priv;

    g_return_val_if_fail (EMPATHY_IS_GROUP_CHAT (chat), FALSE);

    group_chat = EMPATHY_GROUP_CHAT (chat);
    priv = GET_PRIV (group_chat);

    return priv->contacts_visible;
}

void
empathy_group_chat_set_show_contacts (EmpathyGroupChat *chat,
                     gboolean         show)
{
    EmpathyGroupChat     *group_chat;
    EmpathyGroupChatPriv *priv;

    g_return_if_fail (EMPATHY_IS_GROUP_CHAT (chat));

    group_chat = EMPATHY_GROUP_CHAT (chat);
    priv = GET_PRIV (group_chat);

    priv->contacts_visible = show;

    if (show) {
        gtk_widget_show (priv->scrolled_window_contacts);
        gtk_paned_set_position (GTK_PANED (priv->hpaned),
                    priv->contacts_width);
    } else {
        priv->contacts_width = gtk_paned_get_position (GTK_PANED (priv->hpaned));
        gtk_widget_hide (priv->scrolled_window_contacts);
    }
}

void
empathy_group_chat_set_topic (EmpathyGroupChat *chat)
{
    EmpathyGroupChatPriv *priv;
    EmpathyChatWindow    *chat_window;
    GtkWidget           *chat_dialog;
    GtkWidget           *dialog;
    GtkWidget           *entry;
    GtkWidget           *hbox;
    const gchar         *topic;

    g_return_if_fail (EMPATHY_IS_GROUP_CHAT (chat));

    priv = GET_PRIV (chat);

    chat_window = empathy_chat_get_window (EMPATHY_CHAT (chat));
    chat_dialog = empathy_chat_window_get_dialog (chat_window);

    dialog = gtk_message_dialog_new (GTK_WINDOW (chat_dialog),
                     0,
                     GTK_MESSAGE_QUESTION,
                     GTK_BUTTONS_OK_CANCEL,
                     _("Enter the new topic you want to set for this room:"));

    topic = gtk_label_get_text (GTK_LABEL (priv->label_topic));

    hbox = gtk_hbox_new (FALSE, 0);
    gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->vbox),
                hbox, FALSE, TRUE, 4);

    entry = gtk_entry_new ();
    gtk_entry_set_text (GTK_ENTRY (entry), topic);
    gtk_editable_select_region (GTK_EDITABLE (entry), 0, -1);
            
    gtk_box_pack_start (GTK_BOX (hbox), entry, TRUE, TRUE, 4);

    g_object_set (GTK_MESSAGE_DIALOG (dialog)->label, "use-markup", TRUE, NULL);
    g_object_set_data (G_OBJECT (dialog), "entry", entry);

    g_signal_connect (entry, "activate",
              G_CALLBACK (group_chat_topic_entry_activate_cb),
              dialog);
    g_signal_connect (dialog, "response",
              G_CALLBACK (group_chat_topic_response_cb),
              chat);

    gtk_widget_show_all (dialog);
}

static void
group_chat_create_ui (EmpathyGroupChat *chat)
{
    EmpathyGroupChatPriv *priv;
    GladeXML            *glade;
    GList               *list = NULL; 

    priv = GET_PRIV (chat);

    glade = empathy_glade_get_file ("empathy-group-chat.glade",
                       "group_chat_widget",
                       NULL,
                       "group_chat_widget", &priv->widget,
                       "hpaned", &priv->hpaned,
                       "vbox_left", &priv->vbox_left,
                       "scrolled_window_chat", &priv->scrolled_window_chat,
                       "scrolled_window_input", &priv->scrolled_window_input,
                       "hbox_topic", &priv->hbox_topic,
                       "label_topic", &priv->label_topic,
                       "scrolled_window_contacts", &priv->scrolled_window_contacts,
                       NULL);

    empathy_glade_connect (glade,
                  chat,
                  "group_chat_widget", "destroy", group_chat_widget_destroy_cb,
                  NULL);

    g_object_unref (glade);

    g_object_set_data (G_OBJECT (priv->widget), "chat", g_object_ref (chat));

    /* Add room GtkTextView. */
    gtk_container_add (GTK_CONTAINER (priv->scrolled_window_chat),
               GTK_WIDGET (EMPATHY_CHAT (chat)->view));
    gtk_widget_show (GTK_WIDGET (EMPATHY_CHAT (chat)->view));

    /* Add input GtkTextView */
    gtk_container_add (GTK_CONTAINER (priv->scrolled_window_input),
               EMPATHY_CHAT (chat)->input_text_view);
    gtk_widget_show (EMPATHY_CHAT (chat)->input_text_view);

    /* Add nick name completion */
    priv->completion = g_completion_new ((GCompletionFunc) empathy_contact_get_name);
    g_completion_set_compare (priv->completion,
                  group_chat_contacts_completion_func);

    /* Set widget focus order */
    list = g_list_append (NULL, priv->scrolled_window_input);
    gtk_container_set_focus_chain (GTK_CONTAINER (priv->vbox_left), list);
    g_list_free (list);

    list = g_list_append (NULL, priv->vbox_left);
    list = g_list_append (list, priv->scrolled_window_contacts);
    gtk_container_set_focus_chain (GTK_CONTAINER (priv->hpaned), list);
    g_list_free (list);

    list = g_list_append (NULL, priv->hpaned);
    list = g_list_append (list, priv->hbox_topic);
    gtk_container_set_focus_chain (GTK_CONTAINER (priv->widget), list);
    g_list_free (list);
}

static void
group_chat_widget_destroy_cb (GtkWidget       *widget,
                  EmpathyGroupChat *chat)
{
    empathy_debug (DEBUG_DOMAIN, "Destroyed");

    g_object_unref (chat);
}

static void
group_chat_members_changed_cb (EmpathyTpChatroom *tp_chat,
                   EmpathyContact     *contact,
                   EmpathyContact     *actor,
                   guint               reason,
                   gchar              *message,
                   gboolean            is_member,
                   EmpathyGroupChat   *chat)
{
    EmpathyGroupChatPriv *priv;
    gchar                *str;

    priv = GET_PRIV (chat);

    if (is_member) {
        str = g_strdup_printf (_("%s has joined the room"),
                       empathy_contact_get_name (contact));
    } else {
        str = g_strdup_printf (_("%s has left the room"),
                       empathy_contact_get_name (contact));
    }
    empathy_chat_view_append_event (EMPATHY_CHAT (chat)->view, str);
    g_free (str);
}

static void
group_chat_topic_entry_activate_cb (GtkWidget *entry,
                    GtkDialog *dialog)
{
    gtk_dialog_response (dialog, GTK_RESPONSE_OK);
}

static void
group_chat_topic_response_cb (GtkWidget       *dialog,
                  gint             response,                  
                  EmpathyGroupChat *chat)
{
    if (response == GTK_RESPONSE_OK) {
        GtkWidget   *entry;
        const gchar *topic;

        entry = g_object_get_data (G_OBJECT (dialog), "entry");
        topic = gtk_entry_get_text (GTK_ENTRY (entry));
        
        if (!G_STR_EMPTY (topic)) {
            EmpathyGroupChatPriv *priv;

            priv = GET_PRIV (chat);

            empathy_tp_chatroom_set_topic (priv->tp_chat, topic);
        }
    }

    gtk_widget_destroy (dialog);
}

static const gchar *
group_chat_get_name (EmpathyChat *chat)
{
    EmpathyGroupChat     *group_chat;
    EmpathyGroupChatPriv *priv;

    g_return_val_if_fail (EMPATHY_IS_GROUP_CHAT (chat), NULL);

    group_chat = EMPATHY_GROUP_CHAT (chat);
    priv = GET_PRIV (group_chat);

    if (!priv->name) {
        const gchar *id;
        const gchar *server;

        id = empathy_chat_get_id (chat);
        server = strstr (id, "@");

        if (server) {
            priv->name = g_strndup (id, server - id);
        } else {
            priv->name = g_strdup (id);
        } 
    }

    return priv->name;
}

static gchar *
group_chat_get_tooltip (EmpathyChat *chat)
{
    EmpathyGroupChat     *group_chat;
    EmpathyGroupChatPriv *priv;

    g_return_val_if_fail (EMPATHY_IS_GROUP_CHAT (chat), NULL);

    group_chat = EMPATHY_GROUP_CHAT (chat);
    priv = GET_PRIV (group_chat);

    if (priv->topic) {
        gchar *topic, *tmp;

        topic = g_strdup_printf (_("Topic: %s"), priv->topic);
        tmp = g_strdup_printf ("%s\n%s", priv->name, topic);
        g_free (topic);

        return tmp;
    }

    return g_strdup (priv->name);
}

static const gchar *
group_chat_get_status_icon_name (EmpathyChat *chat)
{
    return EMPATHY_IMAGE_GROUP_MESSAGE;
}

static GtkWidget *
group_chat_get_widget (EmpathyChat *chat)
{
    EmpathyGroupChat     *group_chat;
    EmpathyGroupChatPriv *priv;

    g_return_val_if_fail (EMPATHY_IS_GROUP_CHAT (chat), NULL);

    group_chat = EMPATHY_GROUP_CHAT (chat);
    priv = GET_PRIV (group_chat);

    return priv->widget;
}

static gboolean
group_chat_is_group_chat (EmpathyChat *chat)
{
    g_return_val_if_fail (EMPATHY_IS_GROUP_CHAT (chat), FALSE);

    return TRUE;
}

static void
group_chat_set_tp_chat (EmpathyChat    *chat,
            EmpathyTpChat *tp_chat)
{
    EmpathyGroupChat     *group_chat;
    EmpathyGroupChatPriv *priv;

    g_return_if_fail (EMPATHY_IS_GROUP_CHAT (chat));

    group_chat = EMPATHY_GROUP_CHAT (chat);
    priv = GET_PRIV (group_chat);

    /* Free all resources related to tp_chat */
    if (priv->tp_chat) {
        g_object_unref (priv->tp_chat);
        priv->tp_chat = NULL;
    }
    if (priv->view) {
        gtk_widget_destroy (GTK_WIDGET (priv->view));
        g_object_unref (priv->store);
    }
    g_free (priv->name);
    g_free (priv->topic);
    priv->name = NULL;
    priv->topic = NULL;

    if (!tp_chat) {
        /* We are no more connected */
        gtk_widget_set_sensitive (priv->hbox_topic, FALSE);
        gtk_widget_set_sensitive (priv->scrolled_window_contacts, FALSE);
        return;
    }

    /* We are connected */
    gtk_widget_set_sensitive (priv->hbox_topic, TRUE);
    gtk_widget_set_sensitive (priv->scrolled_window_contacts, TRUE);

    priv->tp_chat = g_object_ref (tp_chat);

    if (empathy_tp_chatroom_get_invitation (priv->tp_chat, NULL, NULL)) {
        empathy_tp_chatroom_accept_invitation (priv->tp_chat);
    }

    /* Create contact list */
    priv->store = empathy_contact_list_store_new (EMPATHY_CONTACT_LIST (priv->tp_chat));
    priv->view = empathy_contact_list_view_new (priv->store);
    empathy_contact_list_view_set_interactive (priv->view, TRUE);
    gtk_container_add (GTK_CONTAINER (priv->scrolled_window_contacts),
               GTK_WIDGET (priv->view));
    gtk_widget_show (GTK_WIDGET (priv->view));

    /* Connect signals */
    g_signal_connect (priv->tp_chat, "members-changed",
              G_CALLBACK (group_chat_members_changed_cb),
              chat);
    g_signal_connect (priv->tp_chat, "notify::subject",
              G_CALLBACK (group_chat_subject_notify_cb),
              chat);
    g_signal_connect (priv->tp_chat, "notify::name",
              G_CALLBACK (group_chat_name_notify_cb),
              chat);
}

static void
group_chat_subject_notify_cb (EmpathyTpChat   *tp_chat,
                  GParamSpec      *param,
                  EmpathyGroupChat *chat)
{
    EmpathyGroupChatPriv *priv;
    gchar                *str = NULL;

    priv = GET_PRIV (chat);

    g_object_get (priv->tp_chat, "subject", &str, NULL);
    if (!empathy_strdiff (priv->topic, str)) {
        g_free (str);
        return;
    }

    g_free (priv->topic);
    priv->topic = str;
    gtk_label_set_text (GTK_LABEL (priv->label_topic), priv->topic);

    if (!G_STR_EMPTY (priv->topic)) {
        str = g_strdup_printf (_("Topic set to: %s"), priv->topic);
    } else {
        str = g_strdup (_("No topic defined"));
    }
    empathy_chat_view_append_event (EMPATHY_CHAT (chat)->view, str);
    g_free (str);
}

static void
group_chat_name_notify_cb (EmpathyTpChat   *tp_chat,
               GParamSpec      *param,
               EmpathyGroupChat *chat)
{
    EmpathyGroupChatPriv *priv;

    priv = GET_PRIV (chat);

    g_free (priv->name);
    g_object_get (priv->tp_chat, "name", &priv->name, NULL);
}

static gboolean
group_chat_key_press_event (EmpathyChat *chat,
                GdkEventKey *event)
{
    EmpathyGroupChatPriv *priv;
    GtkTextBuffer        *buffer;
    GtkTextIter           start, current;
    gchar                *nick, *completed;
    gint                  len;
    GList                *list, *completed_list;
    gboolean              is_start_of_buffer;

    priv = GET_PRIV (chat);

    if (!(event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) &&
        event->keyval == GDK_Tab) {
        buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (EMPATHY_CHAT (chat)->input_text_view));
        gtk_text_buffer_get_iter_at_mark (buffer, &current, gtk_text_buffer_get_insert (buffer));

        /* Get the start of the nick to complete. */
        gtk_text_buffer_get_iter_at_mark (buffer, &start, gtk_text_buffer_get_insert (buffer));
        gtk_text_iter_backward_word_start (&start);
        is_start_of_buffer = gtk_text_iter_is_start (&start);

        nick = gtk_text_buffer_get_text (buffer, &start, &current, FALSE);

        len = strlen (nick);

        list = empathy_contact_list_get_members (EMPATHY_CONTACT_LIST (priv->tp_chat));

        g_completion_add_items (priv->completion, list);

        completed_list = g_completion_complete (priv->completion,
                            nick,
                            &completed);

        g_free (nick);

        if (completed) {
            int          len;
            const gchar *text;

            gtk_text_buffer_delete (buffer, &start, &current);

            len = g_list_length (completed_list);

            if (len == 1) {
                /* If we only have one hit, use that text
                 * instead of the text in completed since the
                 * completed text will use the typed string
                 * which might be cased all wrong.
                 * Fixes #120876
                 * */
                text = empathy_contact_get_name (completed_list->data);
            } else {
                text = completed;
            }

            gtk_text_buffer_insert_at_cursor (buffer, text, strlen (text));

            if (len == 1) {
                if (is_start_of_buffer) {
                    gtk_text_buffer_insert_at_cursor (buffer, ": ", 2);
                }
            }

            g_free (completed);
        }

        g_completion_clear_items (priv->completion);

        g_list_foreach (list, (GFunc) g_object_unref, NULL);
        g_list_free (list);

        return TRUE;
    }

    return FALSE;
}

static gint
group_chat_contacts_completion_func (const gchar *s1,
                     const gchar *s2,
                     gsize        n)
{
    gchar *tmp, *nick1, *nick2;
    gint   ret;

    tmp = g_utf8_normalize (s1, -1, G_NORMALIZE_DEFAULT);
    nick1 = g_utf8_casefold (tmp, -1);
    g_free (tmp);

    tmp = g_utf8_normalize (s2, -1, G_NORMALIZE_DEFAULT);
    nick2 = g_utf8_casefold (tmp, -1);
    g_free (tmp);

    ret = strncmp (nick1, nick2, n);

    g_free (nick1);
    g_free (nick2);

    return ret;
}