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path: root/libempathy-gtk/empathy-individual-view.c
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * Copyright (C) 2005-2007 Imendio AB
 * Copyright (C) 2007-2010 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., 51 Franklin St, Fifth Floor,
 * Boston, MA  02110-1301  USA
 *
 * Authors: Mikael Hallendal <micke@imendio.com>
 *          Martyn Russell <martyn@imendio.com>
 *          Xavier Claessens <xclaesse@gmail.com>
 *          Travis Reitter <travis.reitter@collabora.co.uk>
 */

#include "config.h"

#include <string.h>

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

#include <folks/folks.h>
#include <telepathy-glib/account-manager.h>
#include <telepathy-glib/util.h>

#include <libempathy/empathy-call-factory.h>
#include <libempathy/empathy-individual-manager.h>
#include <libempathy/empathy-contact-groups.h>
#include <libempathy/empathy-dispatcher.h>
#include <libempathy/empathy-utils.h>

#include "empathy-individual-view.h"
#include "empathy-individual-menu.h"
#include "empathy-individual-store.h"
#include "empathy-images.h"
#include "empathy-cell-renderer-expander.h"
#include "empathy-cell-renderer-text.h"
#include "empathy-cell-renderer-activatable.h"
#include "empathy-ui-utils.h"
#include "empathy-gtk-enum-types.h"
#include "empathy-gtk-marshal.h"

#define DEBUG_FLAG EMPATHY_DEBUG_CONTACT
#include <libempathy/empathy-debug.h>

/* Active users are those which have recently changed state
 * (e.g. online, offline or from normal to a busy state).
 */

#define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyIndividualView)
typedef struct
{
  EmpathyIndividualStore *store;
  GtkTreeRowReference *drag_row;
  EmpathyIndividualViewFeatureFlags view_features;
  EmpathyContactFeatureFlags individual_features;
  GtkWidget *tooltip_widget;
  GtkTargetList *file_targets;

  GtkTreeModelFilter *filter;
  GtkWidget *search_widget;
} EmpathyIndividualViewPriv;

typedef struct
{
  EmpathyIndividualView *view;
  GtkTreePath *path;
  guint timeout_id;
} DragMotionData;

typedef struct
{
  EmpathyIndividualView *view;
  FolksIndividual *individual;
  gboolean remove;
} ShowActiveData;

enum
{
  PROP_0,
  PROP_STORE,
  PROP_VIEW_FEATURES,
  PROP_INDIVIDUAL_FEATURES,
};

/* TODO: re-add DRAG_TYPE_CONTACT_ID, for the case that we're dragging around
 * specific EmpathyContacts (between/in/out of Individuals) */
enum DndDragType
{
  DND_DRAG_TYPE_INDIVIDUAL_ID,
  DND_DRAG_TYPE_URI_LIST,
  DND_DRAG_TYPE_STRING,
};

static const GtkTargetEntry drag_types_dest[] = {
  {"text/path-list", 0, DND_DRAG_TYPE_URI_LIST},
  {"text/uri-list", 0, DND_DRAG_TYPE_URI_LIST},
  {"text/contact-id", 0, DND_DRAG_TYPE_INDIVIDUAL_ID},
  {"text/plain", 0, DND_DRAG_TYPE_STRING},
  {"STRING", 0, DND_DRAG_TYPE_STRING},
};

static const GtkTargetEntry drag_types_dest_file[] = {
  {"text/path-list", 0, DND_DRAG_TYPE_URI_LIST},
  {"text/uri-list", 0, DND_DRAG_TYPE_URI_LIST},
};

static const GtkTargetEntry drag_types_source[] = {
  {"text/contact-id", 0, DND_DRAG_TYPE_INDIVIDUAL_ID},
};

static GdkAtom drag_atoms_dest[G_N_ELEMENTS (drag_types_dest)];
static GdkAtom drag_atoms_source[G_N_ELEMENTS (drag_types_source)];

enum
{
  DRAG_CONTACT_RECEIVED,
  LAST_SIGNAL
};

static guint signals[LAST_SIGNAL];

G_DEFINE_TYPE (EmpathyIndividualView, empathy_individual_view,
    GTK_TYPE_TREE_VIEW);

static gboolean
individual_view_is_visible_individual (EmpathyIndividualView *self,
    FolksIndividual *individual)
{
  EmpathyIndividualViewPriv *priv = GET_PRIV (self);
  EmpathyLiveSearch *live = EMPATHY_LIVE_SEARCH (priv->search_widget);
  const gchar *str;
  const gchar *p;
  gchar *dup_str = NULL;
  gboolean visible;
  GList *personas, *l;

  g_assert (live != NULL);

  /* check alias name */
  str = folks_individual_get_alias (individual);
  if (empathy_live_search_match (live, str))
    return TRUE;

  /* check contact id, remove the @server.com part */
  personas = folks_individual_get_personas (individual);
  for (l = personas; l; l = l->next)
    {
      str = folks_persona_get_uid (l->data);
      p = strstr (str, "@");
      if (p != NULL)
        str = dup_str = g_strndup (str, p - str);

      visible = empathy_live_search_match (live, str);
      g_free (dup_str);
      if (visible)
        return TRUE;
    }

  /* FIXME: Add more rules here, we could check phone numbers in
   * contact's vCard for example. */

  return FALSE;
}

static gboolean
individual_view_filter_visible_func (GtkTreeModel *model,
    GtkTreeIter *iter,
    gpointer user_data)
{
  EmpathyIndividualView *self = EMPATHY_INDIVIDUAL_VIEW (user_data);
  EmpathyIndividualViewPriv *priv = GET_PRIV (self);
  FolksIndividual *individual = NULL;
  gboolean is_group, is_separator, valid;
  GtkTreeIter child_iter;
  gboolean visible;

  if (priv->search_widget == NULL ||
      !gtk_widget_get_visible (priv->search_widget))
    return TRUE;

  gtk_tree_model_get (model, iter,
      EMPATHY_INDIVIDUAL_STORE_COL_IS_GROUP, &is_group,
      EMPATHY_INDIVIDUAL_STORE_COL_IS_SEPARATOR, &is_separator,
      EMPATHY_INDIVIDUAL_STORE_COL_INDIVIDUAL, &individual,
      -1);

  if (individual != NULL)
    {
      visible = individual_view_is_visible_individual (self, individual);
      g_object_unref (individual);
      return visible;
    }

  if (is_separator)
    return TRUE;

  /* Not a contact, not a separator, must be a group */
  g_return_val_if_fail (is_group, FALSE);

  /* only show groups which are not empty */
  for (valid = gtk_tree_model_iter_children (model, &child_iter, iter);
       valid; valid = gtk_tree_model_iter_next (model, &child_iter))
    {
      gtk_tree_model_get (model, &child_iter,
        EMPATHY_INDIVIDUAL_STORE_COL_INDIVIDUAL, &individual,
        -1);

      if (individual == NULL)
        continue;

      visible = individual_view_is_visible_individual (self, individual);
      g_object_unref (individual);

      /* show group if it has at least one visible contact in it */
      if (visible)
        return TRUE;
    }

  return FALSE;
}

static void
individual_view_tooltip_destroy_cb (GtkWidget *widget,
    EmpathyIndividualView *view)
{
  EmpathyIndividualViewPriv *priv = GET_PRIV (view);

  if (priv->tooltip_widget != NULL)
    {
      DEBUG ("Tooltip destroyed");
      g_object_unref (priv->tooltip_widget);
      priv->tooltip_widget = NULL;
    }
}

static gboolean
individual_view_query_tooltip_cb (EmpathyIndividualView *view,
    gint x,
    gint y,
    gboolean keyboard_mode,
    GtkTooltip *tooltip,
    gpointer user_data)
{
  EmpathyIndividualViewPriv *priv;
  FolksIndividual *individual;
  GtkTreeModel *model;
  GtkTreeIter iter;
  GtkTreePath *path;
  static gint running = 0;
  gboolean ret = FALSE;
  EmpathyContact *contact;

  priv = GET_PRIV (view);

  /* Avoid an infinite loop. See GNOME bug #574377 */
  if (running > 0)
    {
      return FALSE;
    }
  running++;

  /* Don't show the tooltip if there's already a popup menu */
  if (gtk_menu_get_for_attach_widget (GTK_WIDGET (view)) != NULL)
    {
      goto OUT;
    }

  if (!gtk_tree_view_get_tooltip_context (GTK_TREE_VIEW (view), &x, &y,
          keyboard_mode, &model, &path, &iter))
    {
      goto OUT;
    }

  gtk_tree_view_set_tooltip_row (GTK_TREE_VIEW (view), tooltip, path);
  gtk_tree_path_free (path);

  gtk_tree_model_get (model, &iter,
      EMPATHY_INDIVIDUAL_STORE_COL_INDIVIDUAL, &individual,
      -1);
  if (individual == NULL)
    {
      goto OUT;
    }

  contact = empathy_contact_dup_from_folks_individual (individual);
  g_object_unref (individual);

  if (contact == NULL)
    goto OUT;

  if (priv->tooltip_widget == NULL)
    {
      priv->tooltip_widget = empathy_contact_widget_new (contact,
          EMPATHY_CONTACT_WIDGET_FOR_TOOLTIP |
          EMPATHY_CONTACT_WIDGET_SHOW_LOCATION);
      gtk_container_set_border_width (GTK_CONTAINER (priv->tooltip_widget), 8);
      g_object_ref (priv->tooltip_widget);
      g_signal_connect (priv->tooltip_widget, "destroy",
          G_CALLBACK (individual_view_tooltip_destroy_cb), view);
      gtk_widget_show (priv->tooltip_widget);
    }
  else
    {
      empathy_contact_widget_set_contact (priv->tooltip_widget, contact);
    }

  gtk_tooltip_set_custom (tooltip, priv->tooltip_widget);
  ret = TRUE;

  g_object_unref (contact);
OUT:
  running--;

  return ret;
}

static void
individual_view_handle_drag (EmpathyIndividualView *self,
    FolksIndividual *individual,
    const gchar *old_group,
    const gchar *new_group,
    GdkDragAction action)
{
  g_return_if_fail (EMPATHY_IS_INDIVIDUAL_VIEW (self));
  g_return_if_fail (FOLKS_IS_INDIVIDUAL (individual));

  DEBUG ("individual %s dragged from '%s' to '%s'",
      folks_individual_get_id (individual), old_group, new_group);

  if (!tp_strdiff (new_group, EMPATHY_INDIVIDUAL_STORE_FAVORITE))
    {
      /* Mark contact as favourite */
      folks_favourite_set_is_favourite (FOLKS_FAVOURITE (individual), TRUE);
      return;
    }

  if (!tp_strdiff (old_group, EMPATHY_INDIVIDUAL_STORE_FAVORITE))
    {
      /* Remove contact as favourite */
      folks_favourite_set_is_favourite (FOLKS_FAVOURITE (individual), FALSE);

      /* Don't try to remove it */
      old_group = NULL;
    }

  if (new_group != NULL)
    folks_groups_change_group (FOLKS_GROUPS (individual), new_group, TRUE);

  if (old_group != NULL && action == GDK_ACTION_MOVE)
    folks_groups_change_group (FOLKS_GROUPS (individual), old_group, FALSE);
}

static gboolean
group_can_be_modified (const gchar *name,
    gboolean is_fake_group,
    gboolean adding)
{
  /* Real groups can always be modified */
  if (!is_fake_group)
    return TRUE;

  /* The favorite fake group can be modified so users can
   * add/remove favorites using DnD */
  if (!tp_strdiff (name, EMPATHY_INDIVIDUAL_STORE_FAVORITE))
    return TRUE;

  /* We can remove contacts from the 'ungrouped' fake group */
  if (!adding && !tp_strdiff (name, EMPATHY_INDIVIDUAL_STORE_UNGROUPED))
    return TRUE;

  return FALSE;
}

static gboolean
individual_view_contact_drag_received (GtkWidget *self,
    GdkDragContext *context,
    GtkTreeModel *model,
    GtkTreePath *path,
    GtkSelectionData *selection)
{
  EmpathyIndividualViewPriv *priv;
  EmpathyIndividualManager *manager;
  FolksIndividual *individual;
  GtkTreePath *source_path;
  const gchar *sel_data;
  gchar *new_group = NULL;
  gchar *old_group = NULL;
  gboolean new_group_is_fake, old_group_is_fake = TRUE;

  priv = GET_PRIV (self);

  sel_data = (const gchar *) gtk_selection_data_get_data (selection);
  new_group = empathy_individual_store_get_parent_group (model, path,
      NULL, &new_group_is_fake);

  if (!group_can_be_modified (new_group, new_group_is_fake, TRUE))
    return FALSE;

  /* Get source group information. */
  if (priv->drag_row)
    {
      source_path = gtk_tree_row_reference_get_path (priv->drag_row);
      if (source_path)
        {
          old_group =
              empathy_individual_store_get_parent_group (model, source_path,
              NULL, &old_group_is_fake);
          gtk_tree_path_free (source_path);
        }
    }

  if (!group_can_be_modified (old_group, old_group_is_fake, FALSE))
    return FALSE;

  if (!tp_strdiff (old_group, new_group))
    {
      g_free (new_group);
      g_free (old_group);
      return FALSE;
    }

  /* XXX: for contacts, we used to ensure the account, create the contact
   * factory, and then wait on the contacts. But they should already be
   * created by this point */

  manager = empathy_individual_manager_dup_singleton ();
  individual = empathy_individual_manager_lookup_member (manager, sel_data);

  if (individual == NULL)
    {
      DEBUG ("failed to find drag event individual with ID '%s'", sel_data);

      g_object_unref (manager);

      return FALSE;
    }

  /* FIXME: We should probably wait for the cb before calling
   * gtk_drag_finish */

  individual_view_handle_drag (EMPATHY_INDIVIDUAL_VIEW (self), individual,
      old_group, new_group, gdk_drag_context_get_selected_action (context));

  g_object_unref (G_OBJECT (manager));
  g_free (old_group);
  g_free (new_group);

  return TRUE;
}

static gboolean
individual_view_file_drag_received (GtkWidget *view,
    GdkDragContext *context,
    GtkTreeModel *model,
    GtkTreePath *path,
    GtkSelectionData *selection)
{
  GtkTreeIter iter;
  const gchar *sel_data;
  FolksIndividual *individual;
  EmpathyContact *contact;

  sel_data = (const gchar *) gtk_selection_data_get_data (selection);

  gtk_tree_model_get_iter (model, &iter, path);
  gtk_tree_model_get (model, &iter,
      EMPATHY_INDIVIDUAL_STORE_COL_INDIVIDUAL, &individual, -1);
  if (individual == NULL)
    {
      return FALSE;
    }

  contact = empathy_contact_dup_from_folks_individual (individual);
  empathy_send_file_from_uri_list (contact, sel_data);

  g_object_unref (individual);
  tp_clear_object (&contact);

  return TRUE;
}

static void
individual_view_drag_data_received (GtkWidget *view,
    GdkDragContext *context,
    gint x,
    gint y,
    GtkSelectionData *selection,
    guint info,
    guint time_)
{
  GtkTreeModel *model;
  gboolean is_row;
  GtkTreeViewDropPosition position;
  GtkTreePath *path;
  gboolean success = TRUE;

  model = gtk_tree_view_get_model (GTK_TREE_VIEW (view));

  /* Get destination group information. */
  is_row = gtk_tree_view_get_dest_row_at_pos (GTK_TREE_VIEW (view),
      x, y, &path, &position);
  if (!is_row)
    {
      success = FALSE;
    }
  else if (info == DND_DRAG_TYPE_INDIVIDUAL_ID
      || info == DND_DRAG_TYPE_STRING)
    {
      success = individual_view_contact_drag_received (view,
          context, model, path, selection);
    }
  else if (info == DND_DRAG_TYPE_URI_LIST)
    {
      success = individual_view_file_drag_received (view,
          context, model, path, selection);
    }

  gtk_tree_path_free (path);
  gtk_drag_finish (context, success, FALSE, GDK_CURRENT_TIME);
}

static gboolean
individual_view_drag_motion_cb (DragMotionData *data)
{
  gtk_tree_view_expand_row (GTK_TREE_VIEW (data->view), data->path, FALSE);

  data->timeout_id = 0;

  return FALSE;
}

static gboolean
individual_view_drag_motion (GtkWidget *widget,
    GdkDragContext *context,
    gint x,
    gint y,
    guint time_)
{
  EmpathyIndividualViewPriv *priv;
  GtkTreeModel *model;
  GdkAtom target;
  GtkTreeIter iter;
  static DragMotionData *dm = NULL;
  GtkTreePath *path;
  gboolean is_row;
  gboolean is_different = FALSE;
  gboolean cleanup = TRUE;
  gboolean retval = TRUE;

  priv = GET_PRIV (EMPATHY_INDIVIDUAL_VIEW (widget));
  model = gtk_tree_view_get_model (GTK_TREE_VIEW (widget));

  is_row = gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (widget),
      x, y, &path, NULL, NULL, NULL);

  cleanup &= (dm == NULL);

  if (is_row)
    {
      cleanup &= (dm && gtk_tree_path_compare (dm->path, path) != 0);
      is_different = ((dm == NULL) || ((dm != NULL)
              && gtk_tree_path_compare (dm->path, path) != 0));
    }
  else
    {
      cleanup &= FALSE;
    }

  if (path == NULL)
    {
      /* Coordinates don't point to an actual row, so make sure the pointer
         and highlighting don't indicate that a drag is possible.
       */
      gdk_drag_status (context, GDK_ACTION_DEFAULT, time_);
      gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget), NULL, 0);
      return FALSE;
    }
  target = gtk_drag_dest_find_target (widget, context, priv->file_targets);
  gtk_tree_model_get_iter (model, &iter, path);

  if (target == GDK_NONE)
    {
      /* If target == GDK_NONE, then we don't have a target that can be
         dropped on a contact.  This means a contact drag.  If we're
         pointing to a group, highlight it.  Otherwise, if the contact
         we're pointing to is in a group, highlight that.  Otherwise,
         set the drag position to before the first row for a drag into
         the "non-group" at the top.
       */
      GtkTreeIter group_iter;
      gboolean is_group;
      GtkTreePath *group_path;
      gtk_tree_model_get (model, &iter,
          EMPATHY_INDIVIDUAL_STORE_COL_IS_GROUP, &is_group, -1);
      if (is_group)
        {
          group_iter = iter;
        }
      else
        {
          if (gtk_tree_model_iter_parent (model, &group_iter, &iter))
            gtk_tree_model_get (model, &group_iter,
                EMPATHY_INDIVIDUAL_STORE_COL_IS_GROUP, &is_group, -1);
        }
      if (is_group)
        {
          gdk_drag_status (context, GDK_ACTION_MOVE, time_);
          group_path = gtk_tree_model_get_path (model, &group_iter);
          gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
              group_path, GTK_TREE_VIEW_DROP_INTO_OR_BEFORE);
          gtk_tree_path_free (group_path);
        }
      else
        {
          group_path = gtk_tree_path_new_first ();
          gdk_drag_status (context, GDK_ACTION_MOVE, time_);
          gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
              group_path, GTK_TREE_VIEW_DROP_BEFORE);
        }
    }
  else
    {
      /* This is a file drag, and it can only be dropped on contacts,
         not groups.
       */
      FolksIndividual *individual;
      gtk_tree_model_get (model, &iter,
          EMPATHY_INDIVIDUAL_STORE_COL_INDIVIDUAL, &individual, -1);
      if (individual != NULL &&
          folks_individual_is_online (individual) &&
          (folks_individual_get_capabilities (individual) &
              FOLKS_CAPABILITIES_FLAGS_FILE_TRANSFER))
        {
          gdk_drag_status (context, GDK_ACTION_COPY, time_);
          gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
              path, GTK_TREE_VIEW_DROP_INTO_OR_BEFORE);
        }
      else
        {
          gdk_drag_status (context, 0, time_);
          gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget), NULL, 0);
          retval = FALSE;
        }

      if (individual != NULL)
        g_object_unref (individual);
    }

  if (!is_different && !cleanup)
    {
      return retval;
    }

  if (dm)
    {
      gtk_tree_path_free (dm->path);
      if (dm->timeout_id)
        {
          g_source_remove (dm->timeout_id);
        }

      g_free (dm);

      dm = NULL;
    }

  if (!gtk_tree_view_row_expanded (GTK_TREE_VIEW (widget), path))
    {
      dm = g_new0 (DragMotionData, 1);

      dm->view = EMPATHY_INDIVIDUAL_VIEW (widget);
      dm->path = gtk_tree_path_copy (path);

      dm->timeout_id = g_timeout_add_seconds (1,
          (GSourceFunc) individual_view_drag_motion_cb, dm);
    }

  return retval;
}

static void
individual_view_drag_begin (GtkWidget *widget,
    GdkDragContext *context)
{
  EmpathyIndividualViewPriv *priv;
  GtkTreeSelection *selection;
  GtkTreeModel *model;
  GtkTreePath *path;
  GtkTreeIter iter;

  priv = GET_PRIV (widget);

  GTK_WIDGET_CLASS (empathy_individual_view_parent_class)->drag_begin (widget,
      context);

  selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (widget));
  if (!gtk_tree_selection_get_selected (selection, &model, &iter))
    {
      return;
    }

  path = gtk_tree_model_get_path (model, &iter);
  priv->drag_row = gtk_tree_row_reference_new (model, path);
  gtk_tree_path_free (path);
}

static void
individual_view_drag_data_get (GtkWidget *widget,
    GdkDragContext *context,
    GtkSelectionData *selection,
    guint info,
    guint time_)
{
  EmpathyIndividualViewPriv *priv;
  GtkTreePath *src_path;
  GtkTreeIter iter;
  GtkTreeModel *model;
  FolksIndividual *individual;
  const gchar *individual_id;

  priv = GET_PRIV (widget);

  model = gtk_tree_view_get_model (GTK_TREE_VIEW (widget));
  if (priv->drag_row == NULL)
    {
      return;
    }

  src_path = gtk_tree_row_reference_get_path (priv->drag_row);
  if (src_path == NULL)
    {
      return;
    }

  if (!gtk_tree_model_get_iter (model, &iter, src_path))
    {
      gtk_tree_path_free (src_path);
      return;
    }

  gtk_tree_path_free (src_path);

  individual =
      empathy_individual_view_dup_selected (EMPATHY_INDIVIDUAL_VIEW (widget));
  if (individual == NULL)
    {
      return;
    }

  individual_id = folks_individual_get_id (individual);

  switch (info)
    {
    case DND_DRAG_TYPE_INDIVIDUAL_ID:
      gtk_selection_data_set (selection, drag_atoms_source[info], 8,
          (guchar *) individual_id, strlen (individual_id) + 1);
      break;
    }

  g_object_unref (individual);
}

static void
individual_view_drag_end (GtkWidget *widget,
    GdkDragContext *context)
{
  EmpathyIndividualViewPriv *priv;

  priv = GET_PRIV (widget);

  GTK_WIDGET_CLASS (empathy_individual_view_parent_class)->drag_end (widget,
      context);

  if (priv->drag_row)
    {
      gtk_tree_row_reference_free (priv->drag_row);
      priv->drag_row = NULL;
    }
}

static gboolean
individual_view_drag_drop (GtkWidget *widget,
    GdkDragContext *drag_context,
    gint x,
    gint y,
    guint time_)
{
  return FALSE;
}

typedef struct
{
  EmpathyIndividualView *view;
  guint button;
  guint32 time;
} MenuPopupData;

static gboolean
individual_view_popup_menu_idle_cb (gpointer user_data)
{
  MenuPopupData *data = user_data;
  GtkWidget *menu;

  menu = empathy_individual_view_get_individual_menu (data->view);
  if (menu == NULL)
    menu = empathy_individual_view_get_group_menu (data->view);

  if (menu != NULL)
    {
      g_signal_connect (menu, "deactivate", G_CALLBACK (gtk_menu_detach), NULL);
      gtk_menu_attach_to_widget (GTK_MENU (menu), GTK_WIDGET (data->view),
          NULL);
      gtk_widget_show (menu);
      gtk_menu_popup (GTK_MENU (menu), NULL, NULL, NULL, NULL, data->button,
          data->time);
      g_object_ref_sink (menu);
      g_object_unref (menu);
    }

  g_slice_free (MenuPopupData, data);

  return FALSE;
}

static gboolean
individual_view_button_press_event_cb (EmpathyIndividualView *view,
    GdkEventButton *event,
    gpointer user_data)
{
  if (event->button == 3)
    {
      MenuPopupData *data;

      data = g_slice_new (MenuPopupData);
      data->view = view;
      data->button = event->button;
      data->time = event->time;
      g_idle_add (individual_view_popup_menu_idle_cb, data);
    }

  return FALSE;
}

static gboolean
individual_view_key_press_event_cb (EmpathyIndividualView *view,
    GdkEventKey *event,
    gpointer user_data)
{
  if (event->keyval == GDK_Menu)
    {
      MenuPopupData *data;

      data = g_slice_new (MenuPopupData);
      data->view = view;
      data->button = 0;
      data->time = event->time;
      g_idle_add (individual_view_popup_menu_idle_cb, data);
    }

  return FALSE;
}

static void
individual_view_row_activated (GtkTreeView *view,
    GtkTreePath *path,
    GtkTreeViewColumn *column)
{
  EmpathyIndividualViewPriv *priv = GET_PRIV (view);
  FolksIndividual *individual;
  EmpathyContact *contact = NULL;
  GtkTreeModel *model;
  GtkTreeIter iter;

  if (!(priv->individual_features & EMPATHY_CONTACT_FEATURE_CHAT))
    {
      return;
    }

  model = gtk_tree_view_get_model (GTK_TREE_VIEW (view));
  gtk_tree_model_get_iter (model, &iter, path);
  gtk_tree_model_get (model, &iter,
      EMPATHY_INDIVIDUAL_STORE_COL_INDIVIDUAL, &individual, -1);

  if (individual == NULL)
    return;

  contact = empathy_contact_dup_from_folks_individual (individual);
  if (contact != NULL)
    {
      DEBUG ("Starting a chat");

      empathy_dispatcher_chat_with_contact (contact,
          gtk_get_current_event_time (), NULL, NULL);
    }

  g_object_unref (individual);
  tp_clear_object (&contact);
}

static void
individual_view_call_activated_cb (EmpathyCellRendererActivatable *cell,
    const gchar *path_string,
    EmpathyIndividualView *view)
{
  GtkWidget *menu;
  GtkTreeModel *model;
  GtkTreeIter iter;
  FolksIndividual *individual;
  GdkEventButton *event;
  GtkMenuShell *shell;
  GtkWidget *item;

  model = gtk_tree_view_get_model (GTK_TREE_VIEW (view));
  if (!gtk_tree_model_get_iter_from_string (model, &iter, path_string))
    return;

  gtk_tree_model_get (model, &iter,
      EMPATHY_INDIVIDUAL_STORE_COL_INDIVIDUAL, &individual, -1);
  if (individual == NULL)
    return;

  event = (GdkEventButton *) gtk_get_current_event ();

  menu = gtk_menu_new ();
  shell = GTK_MENU_SHELL (menu);

  /* audio */
  item = empathy_individual_audio_call_menu_item_new (individual);
  gtk_menu_shell_append (shell, item);
  gtk_widget_show (item);

  /* video */
  item = empathy_individual_video_call_menu_item_new (individual);
  gtk_menu_shell_append (shell, item);
  gtk_widget_show (item);

  g_signal_connect (menu, "deactivate", G_CALLBACK (gtk_menu_detach), NULL);
  gtk_menu_attach_to_widget (GTK_MENU (menu), GTK_WIDGET (view), NULL);
  gtk_widget_show (menu);
  gtk_menu_popup (GTK_MENU (menu), NULL, NULL, NULL, NULL,
      event->button, event->time);
  g_object_ref_sink (menu);
  g_object_unref (menu);

  g_object_unref (individual);
}

static void
individual_view_cell_set_background (EmpathyIndividualView *view,
    GtkCellRenderer *cell,
    gboolean is_group,
    gboolean is_active)
{
  GdkColor color;
  GtkStyle *style;

  style = gtk_widget_get_style (GTK_WIDGET (view));

  if (!is_group && is_active)
    {
      color = style->bg[GTK_STATE_SELECTED];

      /* Here we take the current theme colour and add it to
       * the colour for white and average the two. This
       * gives a colour which is inline with the theme but
       * slightly whiter.
       */
      color.red = (color.red + (style->white).red) / 2;
      color.green = (color.green + (style->white).green) / 2;
      color.blue = (color.blue + (style->white).blue) / 2;

      g_object_set (cell, "cell-background-gdk", &color, NULL);
    }
  else
    {
      g_object_set (cell, "cell-background-gdk", NULL, NULL);
    }
}

static void
individual_view_pixbuf_cell_data_func (GtkTreeViewColumn *tree_column,
    GtkCellRenderer *cell,
    GtkTreeModel *model,
    GtkTreeIter *iter,
    EmpathyIndividualView *view)
{
  GdkPixbuf *pixbuf;
  gboolean is_group;
  gboolean is_active;

  gtk_tree_model_get (model, iter,
      EMPATHY_INDIVIDUAL_STORE_COL_IS_GROUP, &is_group,
      EMPATHY_INDIVIDUAL_STORE_COL_IS_ACTIVE, &is_active,
      EMPATHY_INDIVIDUAL_STORE_COL_ICON_STATUS, &pixbuf, -1);

  g_object_set (cell,
      "visible", !is_group,
      "pixbuf", pixbuf,
      NULL);

  tp_clear_object (&pixbuf);

  individual_view_cell_set_background (view, cell, is_group, is_active);
}

static void
individual_view_group_icon_cell_data_func (GtkTreeViewColumn *tree_column,
    GtkCellRenderer *cell,
    GtkTreeModel *model,
    GtkTreeIter *iter,
    EmpathyIndividualView *view)
{
  GdkPixbuf *pixbuf = NULL;
  gboolean is_group;
  gchar *name;

  gtk_tree_model_get (model, iter,
      EMPATHY_INDIVIDUAL_STORE_COL_IS_GROUP, &is_group,
      EMPATHY_INDIVIDUAL_STORE_COL_NAME, &name, -1);

  if (!is_group)
    goto out;

  if (!tp_strdiff (name, EMPATHY_INDIVIDUAL_STORE_FAVORITE))
    {
      pixbuf = empathy_pixbuf_from_icon_name ("emblem-favorite",
          GTK_ICON_SIZE_MENU);
    }
  else if (!tp_strdiff (name, EMPATHY_INDIVIDUAL_STORE_PEOPLE_NEARBY))
    {
      pixbuf = empathy_pixbuf_from_icon_name ("im-local-xmpp",
          GTK_ICON_SIZE_MENU);
    }

out:
  g_object_set (cell,
      "visible", pixbuf != NULL,
      "pixbuf", pixbuf,
      NULL);

  tp_clear_object (&pixbuf);

  g_free (name);
}

static void
individual_view_audio_call_cell_data_func (GtkTreeViewColumn *tree_column,
    GtkCellRenderer *cell,
    GtkTreeModel *model,
    GtkTreeIter *iter,
    EmpathyIndividualView *view)
{
  gboolean is_group;
  gboolean is_active;
  gboolean can_audio, can_video;

  gtk_tree_model_get (model, iter,
      EMPATHY_INDIVIDUAL_STORE_COL_IS_GROUP, &is_group,
      EMPATHY_INDIVIDUAL_STORE_COL_IS_ACTIVE, &is_active,
      EMPATHY_INDIVIDUAL_STORE_COL_CAN_AUDIO_CALL, &can_audio,
      EMPATHY_INDIVIDUAL_STORE_COL_CAN_VIDEO_CALL, &can_video, -1);

  g_object_set (cell,
      "visible", !is_group && (can_audio || can_video),
      "icon-name", can_video ? EMPATHY_IMAGE_VIDEO_CALL : EMPATHY_IMAGE_VOIP,
      NULL);

  individual_view_cell_set_background (view, cell, is_group, is_active);
}

static void
individual_view_avatar_cell_data_func (GtkTreeViewColumn *tree_column,
    GtkCellRenderer *cell,
    GtkTreeModel *model,
    GtkTreeIter *iter,
    EmpathyIndividualView *view)
{
  GdkPixbuf *pixbuf;
  gboolean show_avatar;
  gboolean is_group;
  gboolean is_active;

  gtk_tree_model_get (model, iter,
      EMPATHY_INDIVIDUAL_STORE_COL_PIXBUF_AVATAR, &pixbuf,
      EMPATHY_INDIVIDUAL_STORE_COL_PIXBUF_AVATAR_VISIBLE, &show_avatar,
      EMPATHY_INDIVIDUAL_STORE_COL_IS_GROUP, &is_group,
      EMPATHY_INDIVIDUAL_STORE_COL_IS_ACTIVE, &is_active, -1);

  g_object_set (cell,
      "visible", !is_group && show_avatar,
      "pixbuf", pixbuf,
      NULL);

  tp_clear_object (&pixbuf);

  individual_view_cell_set_background (view, cell, is_group, is_active);
}

static void
individual_view_text_cell_data_func (GtkTreeViewColumn *tree_column,
    GtkCellRenderer *cell,
    GtkTreeModel *model,
    GtkTreeIter *iter,
    EmpathyIndividualView *view)
{
  gboolean is_group;
  gboolean is_active;

  gtk_tree_model_get (model, iter,
      EMPATHY_INDIVIDUAL_STORE_COL_IS_GROUP, &is_group,
      EMPATHY_INDIVIDUAL_STORE_COL_IS_ACTIVE, &is_active, -1);

  individual_view_cell_set_background (view, cell, is_group, is_active);
}

static void
individual_view_expander_cell_data_func (GtkTreeViewColumn *column,
    GtkCellRenderer *cell,
    GtkTreeModel *model,
    GtkTreeIter *iter,
    EmpathyIndividualView *view)
{
  gboolean is_group;
  gboolean is_active;

  gtk_tree_model_get (model, iter,
      EMPATHY_INDIVIDUAL_STORE_COL_IS_GROUP, &is_group,
      EMPATHY_INDIVIDUAL_STORE_COL_IS_ACTIVE, &is_active, -1);

  if (gtk_tree_model_iter_has_child (model, iter))
    {
      GtkTreePath *path;
      gboolean row_expanded;

      path = gtk_tree_model_get_path (model, iter);
      row_expanded =
          gtk_tree_view_row_expanded (GTK_TREE_VIEW
          (gtk_tree_view_column_get_tree_view (column)), path);
      gtk_tree_path_free (path);

      g_object_set (cell,
          "visible", TRUE,
          "expander-style",
          row_expanded ? GTK_EXPANDER_EXPANDED : GTK_EXPANDER_COLLAPSED,
          NULL);
    }
  else
    {
      g_object_set (cell, "visible", FALSE, NULL);
    }

  individual_view_cell_set_background (view, cell, is_group, is_active);
}

static void
individual_view_row_expand_or_collapse_cb (EmpathyIndividualView *view,
    GtkTreeIter *iter,
    GtkTreePath *path,
    gpointer user_data)
{
  EmpathyIndividualViewPriv *priv = GET_PRIV (view);
  GtkTreeModel *model;
  gchar *name;
  gboolean expanded;

  if (!(priv->view_features & EMPATHY_INDIVIDUAL_VIEW_FEATURE_GROUPS_SAVE))
    return;

  model = gtk_tree_view_get_model (GTK_TREE_VIEW (view));

  gtk_tree_model_get (model, iter,
      EMPATHY_INDIVIDUAL_STORE_COL_NAME, &name, -1);

  expanded = GPOINTER_TO_INT (user_data);
  empathy_contact_group_set_expanded (name, expanded);

  g_free (name);
}

static gboolean
individual_view_start_search_cb (EmpathyIndividualView *view,
    gpointer data)
{
  EmpathyIndividualViewPriv *priv = GET_PRIV (view);

  if (priv->search_widget == NULL)
    return FALSE;

  if (gtk_widget_get_visible (GTK_WIDGET (priv->search_widget)))
    gtk_widget_grab_focus (GTK_WIDGET (priv->search_widget));
  else
    gtk_widget_show (GTK_WIDGET (priv->search_widget));

  return TRUE;
}

static void
individual_view_search_text_notify_cb (EmpathyLiveSearch *search,
    GParamSpec *pspec,
    EmpathyIndividualView *view)
{
  EmpathyIndividualViewPriv *priv = GET_PRIV (view);
  GtkTreePath *path;
  GtkTreeViewColumn *focus_column;
  GtkTreeModel *model;
  GtkTreeIter iter;
  gboolean set_cursor = FALSE;

  gtk_tree_model_filter_refilter (priv->filter);

  /* Set cursor on the first contact. If it is already set on a group,
   * set it on its first child contact. Note that first child of a group
   * is its separator, that's why we actually set to the 2nd
   */

  model = gtk_tree_view_get_model (GTK_TREE_VIEW (view));
  gtk_tree_view_get_cursor (GTK_TREE_VIEW (view), &path, &focus_column);

  if (path == NULL)
    {
      path = gtk_tree_path_new_from_string ("0:1");
      set_cursor = TRUE;
    }
  else if (gtk_tree_path_get_depth (path) < 2)
    {
      gboolean is_group;

      gtk_tree_model_get_iter (model, &iter, path);
      gtk_tree_model_get (model, &iter,
          EMPATHY_INDIVIDUAL_STORE_COL_IS_GROUP, &is_group,
          -1);

      if (is_group)
        {
          gtk_tree_path_down (path);
          gtk_tree_path_next (path);
          set_cursor = TRUE;
        }
    }

  if (set_cursor)
    {
      /* FIXME: Workaround for GTK bug #621651, we have to make sure the path is
       * valid. */
      if (gtk_tree_model_get_iter (model, &iter, path))
        {
          gtk_tree_view_set_cursor (GTK_TREE_VIEW (view), path, focus_column,
              FALSE);
        }
    }

  gtk_tree_path_free (path);
}

static void
individual_view_search_activate_cb (GtkWidget *search,
  EmpathyIndividualView *view)
{
  GtkTreePath *path;
  GtkTreeViewColumn *focus_column;

  gtk_tree_view_get_cursor (GTK_TREE_VIEW (view), &path, &focus_column);
  if (path != NULL)
    {
      gtk_tree_view_row_activated (GTK_TREE_VIEW (view), path, focus_column);
      gtk_tree_path_free (path);

      gtk_widget_hide (search);
    }
}

static void
individual_view_search_hide_cb (EmpathyLiveSearch *search,
    EmpathyIndividualView *view)
{
  EmpathyIndividualViewPriv *priv = GET_PRIV (view);
  GtkTreeModel *model;
  GtkTreeIter iter;
  gboolean valid = FALSE;

  /* block expand or collapse handlers, they would write the
   * expand or collapsed setting to file otherwise */
  g_signal_handlers_block_by_func (view,
      individual_view_row_expand_or_collapse_cb, GINT_TO_POINTER (TRUE));
  g_signal_handlers_block_by_func (view,
    individual_view_row_expand_or_collapse_cb, GINT_TO_POINTER (FALSE));

  /* restore which groups are expanded and which are not */
  model = gtk_tree_view_get_model (GTK_TREE_VIEW (view));
  for (valid = gtk_tree_model_get_iter_first (model, &iter);
       valid; valid = gtk_tree_model_iter_next (model, &iter))
    {
      gboolean is_group;
      gchar *name = NULL;
      GtkTreePath *path;

      gtk_tree_model_get (model, &iter,
          EMPATHY_INDIVIDUAL_STORE_COL_NAME, &name,
          EMPATHY_INDIVIDUAL_STORE_COL_IS_GROUP, &is_group,
          -1);

      if (!is_group)
        {
          g_free (name);
          continue;
        }

      path = gtk_tree_model_get_path (model, &iter);
      if ((priv->view_features &
            EMPATHY_INDIVIDUAL_VIEW_FEATURE_GROUPS_SAVE) == 0 ||
          empathy_contact_group_get_expanded (name))
        {
          gtk_tree_view_expand_row (GTK_TREE_VIEW (view), path, TRUE);
        }
      else
        {
          gtk_tree_view_collapse_row (GTK_TREE_VIEW (view), path);
        }

      gtk_tree_path_free (path);
      g_free (name);
    }

  /* unblock expand or collapse handlers */
  g_signal_handlers_unblock_by_func (view,
      individual_view_row_expand_or_collapse_cb, GINT_TO_POINTER (TRUE));
  g_signal_handlers_unblock_by_func (view,
      individual_view_row_expand_or_collapse_cb, GINT_TO_POINTER (FALSE));
}

static void
individual_view_search_show_cb (EmpathyLiveSearch *search,
    EmpathyIndividualView *view)
{
  /* block expand or collapse handlers during expand all, they would
   * write the expand or collapsed setting to file otherwise */
  g_signal_handlers_block_by_func (view,
      individual_view_row_expand_or_collapse_cb, GINT_TO_POINTER (TRUE));

  gtk_tree_view_expand_all (GTK_TREE_VIEW (view));

  g_signal_handlers_unblock_by_func (view,
      individual_view_row_expand_or_collapse_cb, GINT_TO_POINTER (TRUE));
}

typedef struct {
  EmpathyIndividualView *view;
  GtkTreeRowReference *row_ref;
  gboolean expand;
} ExpandData;

static gboolean
individual_view_expand_idle_cb (gpointer user_data)
{
  ExpandData *data = user_data;
  GtkTreePath *path;

  path = gtk_tree_row_reference_get_path (data->row_ref);
  if (path == NULL)
    goto done;

  g_signal_handlers_block_by_func (data->view,
    individual_view_row_expand_or_collapse_cb,
    GINT_TO_POINTER (data->expand));

  if (data->expand)
    gtk_tree_view_expand_row (GTK_TREE_VIEW (data->view), path, TRUE);
  else
    gtk_tree_view_collapse_row (GTK_TREE_VIEW (data->view), path);

  gtk_tree_path_free (path);

  g_signal_handlers_unblock_by_func (data->view,
      individual_view_row_expand_or_collapse_cb,
      GINT_TO_POINTER (data->expand));

done:
  g_object_unref (data->view);
  gtk_tree_row_reference_free (data->row_ref);
  g_slice_free (ExpandData, data);

  return FALSE;
}

static void
individual_view_row_has_child_toggled_cb (GtkTreeModel *model,
    GtkTreePath *path,
    GtkTreeIter *iter,
    EmpathyIndividualView *view)
{
  EmpathyIndividualViewPriv *priv = GET_PRIV (view);
  gboolean is_group = FALSE;
  gchar *name = NULL;
  ExpandData *data;

  gtk_tree_model_get (model, iter,
      EMPATHY_INDIVIDUAL_STORE_COL_IS_GROUP, &is_group,
      EMPATHY_INDIVIDUAL_STORE_COL_NAME, &name,
      -1);

  if (!is_group || EMP_STR_EMPTY (name))
    {
      g_free (name);
      return;
    }

  data = g_slice_new0 (ExpandData);
  data->view = g_object_ref (view);
  data->row_ref = gtk_tree_row_reference_new (model, path);
  data->expand =
      (priv->view_features &
          EMPATHY_INDIVIDUAL_VIEW_FEATURE_GROUPS_SAVE) == 0 ||
      (priv->search_widget != NULL &&
          gtk_widget_get_visible (priv->search_widget)) ||
      empathy_contact_group_get_expanded (name);

  /* FIXME: It doesn't work to call gtk_tree_view_expand_row () from within
   * gtk_tree_model_filter_refilter () */
  g_idle_add (individual_view_expand_idle_cb, data);

  g_free (name);
}

static void
individual_view_verify_group_visibility (EmpathyIndividualView *view,
    GtkTreePath *path)
{
  EmpathyIndividualViewPriv *priv = GET_PRIV (view);
  GtkTreeModel *model;
  GtkTreePath *parent_path;
  GtkTreeIter parent_iter;

  if (gtk_tree_path_get_depth (path) < 2)
    return;

  /* A group row is visible if and only if at least one if its child is visible.
   * So when a row is inserted/deleted/changed in the base model, that could
   * modify the visibility of its parent in the filter model.
  */

  model = GTK_TREE_MODEL (priv->store);
  parent_path = gtk_tree_path_copy (path);
  gtk_tree_path_up (parent_path);
  if (gtk_tree_model_get_iter (model, &parent_iter, parent_path))
    {
      /* This tells the filter to verify the visibility of that row, and
       * show/hide it if necessary */
      gtk_tree_model_row_changed (GTK_TREE_MODEL (priv->store),
              parent_path, &parent_iter);
    }
  gtk_tree_path_free (parent_path);
}

static void
individual_view_store_row_changed_cb (GtkTreeModel *model,
  GtkTreePath *path,
  GtkTreeIter *iter,
  EmpathyIndividualView *view)
{
  individual_view_verify_group_visibility (view, path);
}

static void
individual_view_store_row_deleted_cb (GtkTreeModel *model,
  GtkTreePath *path,
  EmpathyIndividualView *view)
{
  individual_view_verify_group_visibility (view, path);
}

static void
individual_view_constructed (GObject *object)
{
  EmpathyIndividualView *view = EMPATHY_INDIVIDUAL_VIEW (object);
  EmpathyIndividualViewPriv *priv = GET_PRIV (view);
  GtkCellRenderer *cell;
  GtkTreeViewColumn *col;
  guint i;

  priv->filter = GTK_TREE_MODEL_FILTER (gtk_tree_model_filter_new (
      GTK_TREE_MODEL (priv->store), NULL));
  gtk_tree_model_filter_set_visible_func (priv->filter,
      individual_view_filter_visible_func, view, NULL);

  g_signal_connect (priv->store, "row-has-child-toggled",
      G_CALLBACK (individual_view_row_has_child_toggled_cb), view);
  gtk_tree_view_set_model (GTK_TREE_VIEW (view),
      GTK_TREE_MODEL (priv->filter));

  tp_g_signal_connect_object (priv->store, "row-changed",
      G_CALLBACK (individual_view_store_row_changed_cb), view, 0);
  tp_g_signal_connect_object (priv->store, "row-inserted",
      G_CALLBACK (individual_view_store_row_changed_cb), view, 0);
  tp_g_signal_connect_object (priv->store, "row-deleted",
      G_CALLBACK (individual_view_store_row_deleted_cb), view, 0);

  tp_g_signal_connect_object (priv->store, "row-changed",
    G_CALLBACK (individual_view_store_row_changed_cb), view, 0);
  tp_g_signal_connect_object (priv->store, "row-inserted",
    G_CALLBACK (individual_view_store_row_changed_cb), view, 0);
  tp_g_signal_connect_object (priv->store, "row-deleted",
    G_CALLBACK (individual_view_store_row_deleted_cb), view, 0);

  /* Setup view */
  /* Setting reorderable is a hack that gets us row previews as drag icons
     for free.  We override all the drag handlers.  It's tricky to get the
     position of the drag icon right in drag_begin.  GtkTreeView has special
     voodoo for it, so we let it do the voodoo that he do.
   */
  g_object_set (view,
      "headers-visible", FALSE,
      "reorderable", TRUE,
      "show-expanders", FALSE,
      NULL);

  col = gtk_tree_view_column_new ();

  /* State */
  cell = gtk_cell_renderer_pixbuf_new ();
  gtk_tree_view_column_pack_start (col, cell, FALSE);
  gtk_tree_view_column_set_cell_data_func (col, cell,
      (GtkTreeCellDataFunc) individual_view_pixbuf_cell_data_func,
      view, NULL);

  g_object_set (cell,
      "xpad", 5,
      "ypad", 1,
      "visible", FALSE,
      NULL);

  /* Group icon */
  cell = gtk_cell_renderer_pixbuf_new ();
  gtk_tree_view_column_pack_start (col, cell, FALSE);
  gtk_tree_view_column_set_cell_data_func (col, cell,
      (GtkTreeCellDataFunc) individual_view_group_icon_cell_data_func,
      view, NULL);

  g_object_set (cell,
      "xpad", 0,
      "ypad", 0,
      "visible", FALSE,
      "width", 16,
      "height", 16,
      NULL);

  /* Name */
  cell = empathy_cell_renderer_text_new ();
  gtk_tree_view_column_pack_start (col, cell, TRUE);
  gtk_tree_view_column_set_cell_data_func (col, cell,
      (GtkTreeCellDataFunc) individual_view_text_cell_data_func, view, NULL);

  gtk_tree_view_column_add_attribute (col, cell,
      "name", EMPATHY_INDIVIDUAL_STORE_COL_NAME);
  gtk_tree_view_column_add_attribute (col, cell,
      "text", EMPATHY_INDIVIDUAL_STORE_COL_NAME);
  gtk_tree_view_column_add_attribute (col, cell,
      "presence-type", EMPATHY_INDIVIDUAL_STORE_COL_PRESENCE_TYPE);
  gtk_tree_view_column_add_attribute (col, cell,
      "status", EMPATHY_INDIVIDUAL_STORE_COL_STATUS);
  gtk_tree_view_column_add_attribute (col, cell,
      "is_group", EMPATHY_INDIVIDUAL_STORE_COL_IS_GROUP);
  gtk_tree_view_column_add_attribute (col, cell,
      "compact", EMPATHY_INDIVIDUAL_STORE_COL_COMPACT);

  /* Audio Call Icon */
  cell = empathy_cell_renderer_activatable_new ();
  gtk_tree_view_column_pack_start (col, cell, FALSE);
  gtk_tree_view_column_set_cell_data_func (col, cell,
      (GtkTreeCellDataFunc) individual_view_audio_call_cell_data_func,
      view, NULL);

  g_object_set (cell, "visible", FALSE, NULL);

  g_signal_connect (cell, "path-activated",
      G_CALLBACK (individual_view_call_activated_cb), view);

  /* Avatar */
  cell = gtk_cell_renderer_pixbuf_new ();
  gtk_tree_view_column_pack_start (col, cell, FALSE);
  gtk_tree_view_column_set_cell_data_func (col, cell,
      (GtkTreeCellDataFunc) individual_view_avatar_cell_data_func,
      view, NULL);

  g_object_set (cell,
      "xpad", 0,
      "ypad", 0,
      "visible", FALSE,
      "width", 32,
      "height", 32,
      NULL);

  /* Expander */
  cell = empathy_cell_renderer_expander_new ();
  gtk_tree_view_column_pack_end (col, cell, FALSE);
  gtk_tree_view_column_set_cell_data_func (col, cell,
      (GtkTreeCellDataFunc) individual_view_expander_cell_data_func,
      view, NULL);

  /* Actually add the column now we have added all cell renderers */
  gtk_tree_view_append_column (GTK_TREE_VIEW (view), col);

  /* Drag & Drop. */
  for (i = 0; i < G_N_ELEMENTS (drag_types_dest); ++i)
    {
      drag_atoms_dest[i] = gdk_atom_intern (drag_types_dest[i].target, FALSE);
    }

  for (i = 0; i < G_N_ELEMENTS (drag_types_source); ++i)
    {
      drag_atoms_source[i] = gdk_atom_intern (drag_types_source[i].target,
          FALSE);
    }
}

static void
individual_view_set_view_features (EmpathyIndividualView *view,
    EmpathyIndividualFeatureFlags features)
{
  EmpathyIndividualViewPriv *priv = GET_PRIV (view);
  gboolean has_tooltip;

  g_return_if_fail (EMPATHY_IS_INDIVIDUAL_VIEW (view));

  priv->view_features = features;

  /* Update DnD source/dest */
  if (features & EMPATHY_INDIVIDUAL_VIEW_FEATURE_CONTACT_DRAG)
    {
      gtk_drag_source_set (GTK_WIDGET (view),
          GDK_BUTTON1_MASK,
          drag_types_source,
          G_N_ELEMENTS (drag_types_source),
          GDK_ACTION_MOVE | GDK_ACTION_COPY);
    }
  else
    {
      gtk_drag_source_unset (GTK_WIDGET (view));

    }

  if (features & EMPATHY_INDIVIDUAL_VIEW_FEATURE_CONTACT_DROP)
    {
      gtk_drag_dest_set (GTK_WIDGET (view),
          GTK_DEST_DEFAULT_ALL,
          drag_types_dest,
          G_N_ELEMENTS (drag_types_dest), GDK_ACTION_MOVE | GDK_ACTION_COPY);
    }
  else
    {
      /* FIXME: URI could still be droped depending on FT feature */
      gtk_drag_dest_unset (GTK_WIDGET (view));
    }

  /* Update has-tooltip */
  has_tooltip =
      (features & EMPATHY_INDIVIDUAL_VIEW_FEATURE_CONTACT_TOOLTIP) != 0;
  gtk_widget_set_has_tooltip (GTK_WIDGET (view), has_tooltip);
}

static void
individual_view_dispose (GObject *object)
{
  EmpathyIndividualView *view = EMPATHY_INDIVIDUAL_VIEW (object);
  EmpathyIndividualViewPriv *priv = GET_PRIV (view);

  tp_clear_object (&priv->store);
  tp_clear_object (&priv->filter);
  tp_clear_pointer (&priv->tooltip_widget, gtk_widget_destroy);
  tp_clear_pointer (&priv->file_targets, gtk_target_list_unref);

  empathy_individual_view_set_live_search (view, NULL);

  G_OBJECT_CLASS (empathy_individual_view_parent_class)->dispose (object);
}

static void
individual_view_get_property (GObject *object,
    guint param_id,
    GValue *value,
    GParamSpec *pspec)
{
  EmpathyIndividualViewPriv *priv;

  priv = GET_PRIV (object);

  switch (param_id)
    {
    case PROP_STORE:
      g_value_set_object (value, priv->store);
      break;
    case PROP_VIEW_FEATURES:
      g_value_set_flags (value, priv->view_features);
      break;
    case PROP_INDIVIDUAL_FEATURES:
      g_value_set_flags (value, priv->individual_features);
      break;
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
      break;
    };
}

static void
individual_view_set_property (GObject *object,
    guint param_id,
    const GValue *value,
    GParamSpec *pspec)
{
  EmpathyIndividualView *view = EMPATHY_INDIVIDUAL_VIEW (object);
  EmpathyIndividualViewPriv *priv = GET_PRIV (object);

  switch (param_id)
    {
    case PROP_STORE:
      priv->store = g_value_dup_object (value);
      break;
    case PROP_VIEW_FEATURES:
      individual_view_set_view_features (view, g_value_get_flags (value));
      break;
    case PROP_INDIVIDUAL_FEATURES:
      priv->individual_features = g_value_get_flags (value);
      break;
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
      break;
    };
}

static void
empathy_individual_view_class_init (EmpathyIndividualViewClass *klass)
{
  GObjectClass *object_class = G_OBJECT_CLASS (klass);
  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
  GtkTreeViewClass *tree_view_class = GTK_TREE_VIEW_CLASS (klass);

  object_class->constructed = individual_view_constructed;
  object_class->dispose = individual_view_dispose;
  object_class->get_property = individual_view_get_property;
  object_class->set_property = individual_view_set_property;

  widget_class->drag_data_received = individual_view_drag_data_received;
  widget_class->drag_drop = individual_view_drag_drop;
  widget_class->drag_begin = individual_view_drag_begin;
  widget_class->drag_data_get = individual_view_drag_data_get;
  widget_class->drag_end = individual_view_drag_end;
  widget_class->drag_motion = individual_view_drag_motion;

  /* We use the class method to let user of this widget to connect to
   * the signal and stop emission of the signal so the default handler
   * won't be called. */
  tree_view_class->row_activated = individual_view_row_activated;

  signals[DRAG_CONTACT_RECEIVED] =
      g_signal_new ("drag-contact-received",
      G_OBJECT_CLASS_TYPE (klass),
      G_SIGNAL_RUN_LAST,
      0,
      NULL, NULL,
      _empathy_gtk_marshal_VOID__OBJECT_STRING_STRING,
      G_TYPE_NONE, 3, EMPATHY_TYPE_CONTACT, G_TYPE_STRING, G_TYPE_STRING);

  g_object_class_install_property (object_class,
      PROP_STORE,
      g_param_spec_object ("store",
          "The store of the view",
          "The store of the view",
          EMPATHY_TYPE_INDIVIDUAL_STORE,
          G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE));
  g_object_class_install_property (object_class,
      PROP_VIEW_FEATURES,
      g_param_spec_flags ("view-features",
          "Features of the view",
          "Flags for all enabled features",
          EMPATHY_TYPE_INDIVIDUAL_VIEW_FEATURE_FLAGS,
          EMPATHY_INDIVIDUAL_VIEW_FEATURE_NONE, G_PARAM_READWRITE));
  g_object_class_install_property (object_class,
      PROP_INDIVIDUAL_FEATURES,
      g_param_spec_flags ("individual-features",
          "Features of the contact menu",
          "Flags for all enabled features for the menu",
          EMPATHY_TYPE_INDIVIDUAL_FEATURE_FLAGS,
          EMPATHY_CONTACT_FEATURE_NONE, G_PARAM_READWRITE));

  g_type_class_add_private (object_class, sizeof (EmpathyIndividualViewPriv));
}

static void
empathy_individual_view_init (EmpathyIndividualView *view)
{
  EmpathyIndividualViewPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (view,
      EMPATHY_TYPE_INDIVIDUAL_VIEW, EmpathyIndividualViewPriv);

  view->priv = priv;
  /* Get saved group states. */
  empathy_contact_groups_get_all ();

  gtk_tree_view_set_row_separator_func (GTK_TREE_VIEW (view),
      empathy_individual_store_row_separator_func, NULL, NULL);

  /* Set up drag target lists. */
  priv->file_targets = gtk_target_list_new (drag_types_dest_file,
      G_N_ELEMENTS (drag_types_dest_file));

  /* Connect to tree view signals rather than override. */
  g_signal_connect (view, "button-press-event",
      G_CALLBACK (individual_view_button_press_event_cb), NULL);
  g_signal_connect (view, "key-press-event",
      G_CALLBACK (individual_view_key_press_event_cb), NULL);
  g_signal_connect (view, "row-expanded",
      G_CALLBACK (individual_view_row_expand_or_collapse_cb),
      GINT_TO_POINTER (TRUE));
  g_signal_connect (view, "row-collapsed",
      G_CALLBACK (individual_view_row_expand_or_collapse_cb),
      GINT_TO_POINTER (FALSE));
  g_signal_connect (view, "query-tooltip",
      G_CALLBACK (individual_view_query_tooltip_cb), NULL);
}

EmpathyIndividualView *
empathy_individual_view_new (EmpathyIndividualStore *store,
    EmpathyIndividualViewFeatureFlags view_features,
    EmpathyIndividualFeatureFlags individual_features)
{
  g_return_val_if_fail (EMPATHY_IS_INDIVIDUAL_STORE (store), NULL);

  return g_object_new (EMPATHY_TYPE_INDIVIDUAL_VIEW,
      "store", store,
      "individual-features", individual_features,
      "view-features", view_features, NULL);
}

FolksIndividual *
empathy_individual_view_dup_selected (EmpathyIndividualView *view)
{
  EmpathyIndividualViewPriv *priv;
  GtkTreeSelection *selection;
  GtkTreeIter iter;
  GtkTreeModel *model;
  FolksIndividual *individual;

  g_return_val_if_fail (EMPATHY_IS_INDIVIDUAL_VIEW (view), NULL);

  priv = GET_PRIV (view);

  selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (view));
  if (!gtk_tree_selection_get_selected (selection, &model, &iter))
    {
      return NULL;
    }

  gtk_tree_model_get (model, &iter,
      EMPATHY_INDIVIDUAL_STORE_COL_INDIVIDUAL, &individual, -1);

  return individual;
}

EmpathyIndividualManagerFlags
empathy_individual_view_get_flags (EmpathyIndividualView *view)
{
  EmpathyIndividualViewPriv *priv;
  GtkTreeSelection *selection;
  GtkTreeIter iter;
  GtkTreeModel *model;
  EmpathyIndividualFeatureFlags flags;

  g_return_val_if_fail (EMPATHY_IS_INDIVIDUAL_VIEW (view), 0);

  priv = GET_PRIV (view);

  selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (view));
  if (!gtk_tree_selection_get_selected (selection, &model, &iter))
    {
      return 0;
    }

  gtk_tree_model_get (model, &iter,
      EMPATHY_INDIVIDUAL_STORE_COL_FLAGS, &flags, -1);

  return flags;
}

gchar *
empathy_individual_view_get_selected_group (EmpathyIndividualView *view,
    gboolean *is_fake_group)
{
  EmpathyIndividualViewPriv *priv;
  GtkTreeSelection *selection;
  GtkTreeIter iter;
  GtkTreeModel *model;
  gboolean is_group;
  gchar *name;
  gboolean fake;

  g_return_val_if_fail (EMPATHY_IS_INDIVIDUAL_VIEW (view), NULL);

  priv = GET_PRIV (view);

  selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (view));
  if (!gtk_tree_selection_get_selected (selection, &model, &iter))
    {
      return NULL;
    }

  gtk_tree_model_get (model, &iter,
      EMPATHY_INDIVIDUAL_STORE_COL_IS_GROUP, &is_group,
      EMPATHY_INDIVIDUAL_STORE_COL_NAME, &name,
      EMPATHY_INDIVIDUAL_STORE_COL_IS_FAKE_GROUP, &fake, -1);

  if (!is_group)
    {
      g_free (name);
      return NULL;
    }

  if (is_fake_group != NULL)
    *is_fake_group = fake;

  return name;
}

static gboolean
individual_view_remove_dialog_show (GtkWindow *parent,
    const gchar *message,
    const gchar *secondary_text)
{
  GtkWidget *dialog;
  gboolean res;

  dialog = gtk_message_dialog_new (parent, GTK_DIALOG_MODAL,
      GTK_MESSAGE_QUESTION, GTK_BUTTONS_NONE, "%s", message);
  gtk_dialog_add_buttons (GTK_DIALOG (dialog),
      GTK_STOCK_CANCEL, GTK_RESPONSE_NO,
      GTK_STOCK_DELETE, GTK_RESPONSE_YES, NULL);
  gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog),
      "%s", secondary_text);

  gtk_widget_show (dialog);

  res = gtk_dialog_run (GTK_DIALOG (dialog));
  gtk_widget_destroy (dialog);

  return (res == GTK_RESPONSE_YES);
}

static void
individual_view_group_remove_activate_cb (GtkMenuItem *menuitem,
    EmpathyIndividualView *view)
{
  gchar *group;

  group = empathy_individual_view_get_selected_group (view, NULL);
  if (group != NULL)
    {
      gchar *text;
      GtkWindow *parent;

      text =
          g_strdup_printf (_("Do you really want to remove the group '%s'?"),
          group);
      parent = empathy_get_toplevel_window (GTK_WIDGET (view));
      if (individual_view_remove_dialog_show (parent, _("Removing group"),
              text))
        {
          EmpathyIndividualManager *manager =
              empathy_individual_manager_dup_singleton ();
          empathy_individual_manager_remove_group (manager, group);
          g_object_unref (G_OBJECT (manager));
        }

      g_free (text);
    }

  g_free (group);
}

GtkWidget *
empathy_individual_view_get_group_menu (EmpathyIndividualView *view)
{
  EmpathyIndividualViewPriv *priv = GET_PRIV (view);
  gchar *group;
  GtkWidget *menu;
  GtkWidget *item;
  GtkWidget *image;
  gboolean is_fake_group;

  g_return_val_if_fail (EMPATHY_IS_INDIVIDUAL_VIEW (view), NULL);

  if (!(priv->view_features & (EMPATHY_INDIVIDUAL_VIEW_FEATURE_GROUPS_RENAME |
              EMPATHY_INDIVIDUAL_VIEW_FEATURE_GROUPS_REMOVE)))
    {
      return NULL;
    }

  group = empathy_individual_view_get_selected_group (view, &is_fake_group);
  if (!group || is_fake_group)
    {
      /* We can't alter fake groups */
      return NULL;
    }

  menu = gtk_menu_new ();

  /* TODO: implement
     if (priv->view_features &
     EMPATHY_INDIVIDUAL_VIEW_FEATURE_GROUPS_RENAME) {
     item = gtk_menu_item_new_with_mnemonic (_("Re_name"));
     gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
     gtk_widget_show (item);
     g_signal_connect (item, "activate",
     G_CALLBACK (individual_view_group_rename_activate_cb),
     view);
     }
   */

  if (priv->view_features & EMPATHY_INDIVIDUAL_VIEW_FEATURE_GROUPS_REMOVE)
    {
      item = gtk_image_menu_item_new_with_mnemonic (_("_Remove"));
      image = gtk_image_new_from_icon_name (GTK_STOCK_REMOVE,
          GTK_ICON_SIZE_MENU);
      gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
      gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
      gtk_widget_show (item);
      g_signal_connect (item, "activate",
          G_CALLBACK (individual_view_group_remove_activate_cb), view);
    }

  g_free (group);

  return menu;
}

static void
individual_view_remove_activate_cb (GtkMenuItem *menuitem,
    EmpathyIndividualView *view)
{
  FolksIndividual *individual;

  individual = empathy_individual_view_dup_selected (view);

  if (individual != NULL)
    {
      gchar *text;
      GtkWindow *parent;

      parent = empathy_get_toplevel_window (GTK_WIDGET (view));
      text =
          g_strdup_printf (_
          ("Do you really want to remove the contact '%s'?"),
          folks_individual_get_alias (individual));
      if (individual_view_remove_dialog_show (parent, _("Removing contact"),
              text))
        {
          EmpathyIndividualManager *manager;

          manager = empathy_individual_manager_dup_singleton ();
          empathy_individual_manager_remove (manager, individual, "");
          g_object_unref (G_OBJECT (manager));
        }

      g_free (text);
      g_object_unref (individual);
    }
}

GtkWidget *
empathy_individual_view_get_individual_menu (EmpathyIndividualView *view)
{
  EmpathyIndividualViewPriv *priv = GET_PRIV (view);
  FolksIndividual *individual;
  GtkWidget *menu = NULL;
  GtkWidget *item;
  GtkWidget *image;
  EmpathyIndividualManagerFlags flags;

  g_return_val_if_fail (EMPATHY_IS_INDIVIDUAL_VIEW (view), NULL);

  individual = empathy_individual_view_dup_selected (view);
  if (individual == NULL)
    {
      return NULL;
    }

  flags = empathy_individual_view_get_flags (view);

  menu = empathy_individual_menu_new (individual, priv->individual_features);

  /* Remove contact */
  if (priv->view_features &
      EMPATHY_INDIVIDUAL_VIEW_FEATURE_CONTACT_REMOVE &&
      flags & EMPATHY_INDIVIDUAL_MANAGER_CAN_REMOVE)
    {

      /* create the menu if required, or just add a separator */
      if (menu == NULL)
        {
          menu = gtk_menu_new ();
        }
      else
        {
          item = gtk_separator_menu_item_new ();
          gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
          gtk_widget_show (item);
        }

      /* Remove */
      item = gtk_image_menu_item_new_with_mnemonic (_("_Remove"));
      image = gtk_image_new_from_icon_name (GTK_STOCK_REMOVE,
          GTK_ICON_SIZE_MENU);
      gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
      gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
      gtk_widget_show (item);
      g_signal_connect (item, "activate",
          G_CALLBACK (individual_view_remove_activate_cb), view);
    }

  g_object_unref (individual);

  return menu;
}

void
empathy_individual_view_set_live_search (EmpathyIndividualView *view,
    EmpathyLiveSearch *search)
{
  EmpathyIndividualViewPriv *priv = GET_PRIV (view);

  /* remove old handlers if old search was not null */
  if (priv->search_widget != NULL)
    {
      g_signal_handlers_disconnect_by_func (view,
          individual_view_start_search_cb, NULL);

      g_signal_handlers_disconnect_by_func (priv->search_widget,
          individual_view_search_text_notify_cb, view);
      g_signal_handlers_disconnect_by_func (priv->search_widget,
          individual_view_search_activate_cb, view);
      g_signal_handlers_disconnect_by_func (priv->search_widget,
          individual_view_search_hide_cb, view);
      g_signal_handlers_disconnect_by_func (priv->search_widget,
          individual_view_search_show_cb, view);
      g_object_unref (priv->search_widget);
      priv->search_widget = NULL;
    }

  /* connect handlers if new search is not null */
  if (search != NULL)
    {
      priv->search_widget = g_object_ref (search);

      g_signal_connect (view, "start-interactive-search",
          G_CALLBACK (individual_view_start_search_cb), NULL);

      g_signal_connect (priv->search_widget, "notify::text",
          G_CALLBACK (individual_view_search_text_notify_cb), view);
      g_signal_connect (priv->search_widget, "activate",
          G_CALLBACK (individual_view_search_activate_cb), view);
      g_signal_connect (priv->search_widget, "hide",
          G_CALLBACK (individual_view_search_hide_cb), view);
      g_signal_connect (priv->search_widget, "show",
          G_CALLBACK (individual_view_search_show_cb), view);
    }
}