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[empathy] Add EmpathyContactChooser

commit 820b5479bd14c6b408a3818f9bc287ad0a3e2fb8
Author: Guillaume Desmottes <guillaume desmottes collabora co uk>
Date:   Fri Aug 5 11:32:23 2011 +0200

    Add EmpathyContactChooser
    
    This is a pure code refactoring from EmpathyInviteParticipantDialog, this
    widget is not generic yet.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=656020

 libempathy-gtk/Makefile.am               |    2 +
 libempathy-gtk/empathy-contact-chooser.c |  493 ++++++++++++++++++++++++++++++
 libempathy-gtk/empathy-contact-chooser.h |   55 ++++
 src/empathy-invite-participant-dialog.c  |  410 +++----------------------
 4 files changed, 594 insertions(+), 366 deletions(-)
---
diff --git a/libempathy-gtk/Makefile.am b/libempathy-gtk/Makefile.am
index 7023ecf..2920a2a 100644
--- a/libempathy-gtk/Makefile.am
+++ b/libempathy-gtk/Makefile.am
@@ -45,6 +45,7 @@ libempathy_gtk_handwritten_source =            	\
 	empathy-chat.c				\
 	empathy-contact-blocking-dialog.c	\
 	empathy-contact-dialogs.c		\
+	empathy-contact-chooser.c		\
 	empathy-contact-list-store.c		\
 	empathy-contact-list-view.c		\
 	empathy-contact-menu.c			\
@@ -106,6 +107,7 @@ libempathy_gtk_headers =			\
 	empathy-chat.h				\
 	empathy-contact-blocking-dialog.h	\
 	empathy-contact-dialogs.h		\
+	empathy-contact-chooser.h		\
 	empathy-contact-list-store.h		\
 	empathy-contact-list-view.h		\
 	empathy-contact-menu.h			\
diff --git a/libempathy-gtk/empathy-contact-chooser.c b/libempathy-gtk/empathy-contact-chooser.c
new file mode 100644
index 0000000..38956ba
--- /dev/null
+++ b/libempathy-gtk/empathy-contact-chooser.c
@@ -0,0 +1,493 @@
+/*
+ * empathy-contact-chooser.c
+ *
+ * EmpathyContactChooser
+ *
+ * (c) 2009, Collabora Ltd.
+ *
+ * Authors:
+ *    Danielle Madeley <danielle madeley collabora co uk>
+ */
+
+#include <glib/gi18n.h>
+#include <folks/folks-telepathy.h>
+
+#include "empathy-contact-chooser.h"
+
+#include <libempathy-gtk/empathy-individual-view.h>
+#include <libempathy-gtk/empathy-ui-utils.h>
+
+G_DEFINE_TYPE (EmpathyContactChooser,
+    empathy_contact_chooser, GTK_TYPE_BOX);
+
+enum
+{
+  PROP_TP_CHAT = 1
+};
+
+enum {
+  SIG_SELECTION_CHANGED,
+  LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL];
+
+typedef struct _AddTemporaryIndividualCtx AddTemporaryIndividualCtx;
+
+struct _EmpathyContactChooserPrivate
+{
+  EmpathyTpChat *tp_chat;
+  TpAccountManager *account_mgr;
+
+  EmpathyIndividualStore *store;
+  EmpathyIndividualView *view;
+
+  GPtrArray *search_words;
+  gchar *search_str;
+
+  /* Context representing the FolksIndividual which are added because of the
+   * current search from the user. */
+  AddTemporaryIndividualCtx *add_temp_ctx;
+};
+
+static void
+contact_chooser_get_property (GObject *object,
+    guint param_id,
+    GValue *value,
+    GParamSpec *pspec)
+{
+  EmpathyContactChooser *self = (EmpathyContactChooser *)
+    object;
+
+  switch (param_id)
+    {
+    case PROP_TP_CHAT:
+      g_value_set_object (value, self->priv->tp_chat);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
+      break;
+    };
+}
+
+static void
+contact_chooser_set_property (GObject *object,
+    guint param_id,
+    const GValue *value,
+    GParamSpec *pspec)
+{
+  EmpathyContactChooser *self = (EmpathyContactChooser *)
+    object;
+
+  switch (param_id)
+    {
+    case PROP_TP_CHAT:
+      g_assert (self->priv->tp_chat == NULL); /* construct-only */
+      self->priv->tp_chat = g_value_dup_object (value);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
+      break;
+    };
+}
+
+struct _AddTemporaryIndividualCtx
+{
+  EmpathyContactChooser *self;
+  /* List of owned FolksIndividual */
+  GList *individuals;
+};
+
+static AddTemporaryIndividualCtx *
+add_temporary_individual_ctx_new (EmpathyContactChooser *self)
+{
+  AddTemporaryIndividualCtx *ctx = g_slice_new0 (AddTemporaryIndividualCtx);
+
+  ctx->self = self;
+  return ctx;
+}
+
+static void
+add_temporary_individual_ctx_free (AddTemporaryIndividualCtx *ctx)
+{
+  GList *l;
+
+  /* Remove all the individuals from the model */
+  for (l = ctx->individuals; l != NULL; l = g_list_next (l))
+    {
+      FolksIndividual *individual = l->data;
+
+      individual_store_remove_individual_and_disconnect (ctx->self->priv->store,
+          individual);
+
+      g_object_unref (individual);
+    }
+
+  g_list_free (ctx->individuals);
+  g_slice_free (AddTemporaryIndividualCtx, ctx);
+}
+
+static void
+contact_chooser_dispose (GObject *object)
+{
+  EmpathyContactChooser *self = (EmpathyContactChooser *)
+    object;
+
+  tp_clear_pointer (&self->priv->add_temp_ctx,
+      add_temporary_individual_ctx_free);
+
+  tp_clear_object (&self->priv->tp_chat);
+  tp_clear_object (&self->priv->store);
+  tp_clear_pointer (&self->priv->search_words, g_ptr_array_unref);
+  tp_clear_pointer (&self->priv->search_str, g_free);
+
+  tp_clear_object (&self->priv->account_mgr);
+
+  G_OBJECT_CLASS (empathy_contact_chooser_parent_class)->dispose (
+      object);
+}
+
+static void
+empathy_contact_chooser_class_init (
+    EmpathyContactChooserClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->get_property = contact_chooser_get_property;
+  object_class->set_property = contact_chooser_set_property;
+  object_class->dispose = contact_chooser_dispose;
+
+  g_type_class_add_private (object_class,
+      sizeof (EmpathyContactChooserPrivate));
+
+  g_object_class_install_property (object_class,
+      PROP_TP_CHAT,
+      g_param_spec_object ("tp-chat", "EmpathyTpChat", "EmpathyTpChat",
+          EMPATHY_TYPE_TP_CHAT,
+          G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
+
+  signals[SIG_SELECTION_CHANGED] = g_signal_new ("selection-changed",
+            G_TYPE_FROM_CLASS (klass),
+            G_SIGNAL_RUN_LAST,
+            0,
+            NULL, NULL,
+            g_cclosure_marshal_VOID__OBJECT,
+            G_TYPE_NONE,
+            1, FOLKS_TYPE_INDIVIDUAL);
+}
+
+static void
+view_selection_changed_cb (GtkWidget *treeview,
+    EmpathyContactChooser *self)
+{
+  FolksIndividual *individual;
+
+  individual = empathy_individual_view_dup_selected (self->priv->view);
+
+  g_signal_emit (self, signals[SIG_SELECTION_CHANGED], 0, individual);
+
+  tp_clear_object (&individual);
+}
+
+/* Return the TpContact of @individual which is on the same connection as the
+ * EmpathyTpChat */
+static TpContact *
+get_tp_contact_for_chat (EmpathyContactChooser *self,
+    FolksIndividual *individual)
+{
+  TpContact *contact = NULL;
+  TpConnection *chat_conn;
+  GeeSet *personas;
+  GeeIterator *iter;
+
+  chat_conn = tp_channel_borrow_connection (TP_CHANNEL (self->priv->tp_chat));
+
+  personas = folks_individual_get_personas (individual);
+  iter = gee_iterable_iterator (GEE_ITERABLE (personas));
+  while (contact == FALSE && gee_iterator_next (iter))
+    {
+      TpfPersona *persona = gee_iterator_get (iter);
+      TpConnection *contact_conn;
+      TpContact *contact_cur = NULL;
+
+      if (TPF_IS_PERSONA (persona))
+        {
+          contact_cur = tpf_persona_get_contact (persona);
+          if (contact_cur != NULL)
+            {
+              contact_conn = tp_contact_get_connection (contact_cur);
+
+              if (!tp_strdiff (tp_proxy_get_object_path (contact_conn),
+                    tp_proxy_get_object_path (chat_conn)))
+                contact = contact_cur;
+            }
+        }
+
+      g_clear_object (&persona);
+    }
+  g_clear_object (&iter);
+
+  return contact;
+}
+
+static gboolean
+filter_func (GtkTreeModel *model,
+    GtkTreeIter *iter,
+    gpointer user_data)
+{
+  EmpathyContactChooser *self = user_data;
+  FolksIndividual *individual;
+  TpContact *contact;
+  gboolean is_online;
+  GList *members, *l;
+  gboolean display = FALSE;
+
+  gtk_tree_model_get (model, iter,
+      EMPATHY_INDIVIDUAL_STORE_COL_INDIVIDUAL, &individual,
+      EMPATHY_INDIVIDUAL_STORE_COL_IS_ONLINE, &is_online,
+      -1);
+
+  if (individual == NULL)
+    goto out;
+
+  if (self->priv->search_words == NULL)
+    {
+      /* Not searching, display online contacts */
+      if (!is_online)
+        goto out;
+    }
+  else
+    {
+      if (!empathy_individual_match_string (individual,
+            self->priv->search_str, self->priv->search_words))
+        goto out;
+    }
+
+  /* Filter out individuals not having a persona on the same connection as the
+   * EmpathyTpChat. */
+  contact = get_tp_contact_for_chat (self, individual);
+
+  if (contact == NULL)
+    goto out;
+
+  /* Filter out contacts which are already in the chat */
+  members = empathy_contact_list_get_members (EMPATHY_CONTACT_LIST (
+        self->priv->tp_chat));
+
+  display = TRUE;
+
+  for (l = members; l != NULL; l = g_list_next (l))
+    {
+      EmpathyContact *member = l->data;
+      TpHandle handle;
+
+      /* Try to get the non-channel specific handle. */
+      handle = tp_channel_group_get_handle_owner (
+          TP_CHANNEL (self->priv->tp_chat),
+          empathy_contact_get_handle (member));
+      if (handle == 0)
+        handle = empathy_contact_get_handle (member);
+
+      if (handle == tp_contact_get_handle (contact))
+        {
+          display = FALSE;
+          break;
+        }
+    }
+
+  g_list_free_full (members, g_object_unref);
+
+out:
+  tp_clear_object (&individual);
+  return display;
+}
+
+static void
+get_contacts_cb (TpConnection *connection,
+    guint n_contacts,
+    TpContact * const *contacts,
+    const gchar * const *requested_ids,
+    GHashTable *failed_id_errors,
+    const GError *error,
+    gpointer user_data,
+    GObject *weak_object)
+{
+  EmpathyContactChooser *self =
+    (EmpathyContactChooser *) weak_object;
+  AddTemporaryIndividualCtx *ctx = user_data;
+  TpAccount *account;
+  TpfPersonaStore *store;
+  FolksIndividual *individual;
+  TpfPersona *persona_new;
+  GeeSet *personas;
+
+  if (self->priv->add_temp_ctx != ctx)
+    /* another request has been started */
+    return;
+
+  if (n_contacts != 1)
+    return;
+
+  account = g_object_get_data (G_OBJECT (connection), "account");
+
+  store = tpf_persona_store_new (account);
+  personas = GEE_SET (
+      gee_hash_set_new (FOLKS_TYPE_PERSONA, g_object_ref, g_object_unref,
+      g_direct_hash, g_direct_equal));
+  persona_new = tpf_persona_new (contacts[0], store);
+  gee_collection_add (GEE_COLLECTION (personas),
+      tpf_persona_new (contacts[0], store));
+
+  individual = folks_individual_new (personas);
+
+  /* Pass ownership to the list */
+  ctx->individuals = g_list_prepend (ctx->individuals, individual);
+
+  individual_store_add_individual_and_connect (self->priv->store, individual);
+
+  g_clear_object (&persona_new);
+  g_clear_object (&personas);
+  g_object_unref (store);
+}
+
+static void
+add_temporary_individuals (EmpathyContactChooser *self,
+    const gchar *id)
+{
+  GList *accounts, *l;
+
+  tp_clear_pointer (&self->priv->add_temp_ctx,
+      add_temporary_individual_ctx_free);
+
+  if (tp_str_empty (id))
+    return;
+
+  self->priv->add_temp_ctx = add_temporary_individual_ctx_new (self);
+
+  /* Try to add an individual for each connected account */
+  accounts = tp_account_manager_get_valid_accounts (self->priv->account_mgr);
+  for (l = accounts; l != NULL; l = g_list_next (l))
+    {
+      TpAccount *account = l->data;
+      TpConnection *conn;
+      TpContactFeature features[] = { TP_CONTACT_FEATURE_ALIAS,
+          TP_CONTACT_FEATURE_AVATAR_DATA,
+          TP_CONTACT_FEATURE_PRESENCE,
+          TP_CONTACT_FEATURE_CAPABILITIES };
+
+      conn = tp_account_get_connection (account);
+      if (conn == NULL)
+        continue;
+
+      /* One day we'll have tp_connection_get_account()... */
+      g_object_set_data_full (G_OBJECT (conn), "account",
+          g_object_ref (account), g_object_unref);
+
+      tp_connection_get_contacts_by_id (conn, 1, &id, G_N_ELEMENTS (features),
+          features, get_contacts_cb, self->priv->add_temp_ctx, NULL,
+          G_OBJECT (self));
+    }
+
+  g_list_free (accounts);
+}
+
+static void
+search_text_changed (GtkEntry *entry,
+    EmpathyContactChooser *self)
+{
+  const gchar *id;
+
+  tp_clear_pointer (&self->priv->search_words, g_ptr_array_unref);
+  tp_clear_pointer (&self->priv->search_str, g_free);
+
+  id = gtk_entry_get_text (entry);
+
+  self->priv->search_words = empathy_live_search_strip_utf8_string (id);
+  self->priv->search_str = g_strdup (id);
+
+  add_temporary_individuals (self, id);
+
+  empathy_individual_view_refilter (self->priv->view);
+}
+
+static void
+empathy_contact_chooser_init (EmpathyContactChooser *self)
+{
+  EmpathyIndividualManager *mgr;
+  GtkTreeSelection *selection;
+  GtkWidget *scroll;
+  GtkWidget *search_entry;
+  GQuark features[] = { TP_ACCOUNT_MANAGER_FEATURE_CORE, 0 };
+
+  self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self, EMPATHY_TYPE_CONTACT_CHOOSER,
+      EmpathyContactChooserPrivate);
+
+  self->priv->account_mgr = tp_account_manager_dup ();
+
+  /* We don't wait for the CORE feature to be prepared, which is fine as we
+   * won't use the account manager until user starts searching. Furthermore,
+   * the AM has probably already been prepared by another Empathy
+   * component. */
+  tp_proxy_prepare_async (self->priv->account_mgr, features, NULL, NULL);
+
+  /* Search entry */
+  search_entry = gtk_entry_new ();
+  gtk_box_pack_start (GTK_BOX (self), search_entry, FALSE, TRUE, 6);
+  gtk_widget_show (search_entry);
+
+  g_signal_connect (search_entry, "changed",
+      G_CALLBACK (search_text_changed), self);
+
+  /* Add the treeview */
+  mgr = empathy_individual_manager_dup_singleton ();
+  self->priv->store = empathy_individual_store_new (mgr);
+  g_object_unref (mgr);
+
+  empathy_individual_store_set_show_groups (self->priv->store, FALSE);
+
+  self->priv->view = empathy_individual_view_new (self->priv->store,
+      EMPATHY_INDIVIDUAL_VIEW_FEATURE_NONE, EMPATHY_INDIVIDUAL_FEATURE_NONE);
+
+  empathy_individual_view_set_custom_filter (self->priv->view,
+      filter_func, self);
+
+  selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (self->priv->view));
+
+  g_signal_connect (selection, "changed",
+      G_CALLBACK (view_selection_changed_cb), self);
+
+  scroll = gtk_scrolled_window_new (NULL, NULL);
+
+  gtk_container_add (GTK_CONTAINER (scroll), GTK_WIDGET (self->priv->view));
+
+  gtk_box_pack_start (GTK_BOX (self), scroll, TRUE, TRUE, 6);
+  gtk_widget_show (GTK_WIDGET (self->priv->view));
+  gtk_widget_show (scroll);
+}
+
+GtkWidget *
+empathy_contact_chooser_new (EmpathyTpChat *tp_chat)
+{
+  g_return_val_if_fail (EMPATHY_IS_TP_CHAT (tp_chat), NULL);
+
+  return g_object_new (EMPATHY_TYPE_CONTACT_CHOOSER,
+      "orientation", GTK_ORIENTATION_VERTICAL,
+      "tp-chat", tp_chat,
+      NULL);
+}
+
+TpContact *
+empathy_contact_chooser_get_selected (EmpathyContactChooser *self)
+{
+  FolksIndividual *individual;
+  TpContact *contact;
+
+  individual = empathy_individual_view_dup_selected (self->priv->view);
+  if (individual == NULL)
+    return NULL;
+
+  contact = get_tp_contact_for_chat (self, individual);
+
+  g_object_unref (individual);
+  return contact;
+}
diff --git a/libempathy-gtk/empathy-contact-chooser.h b/libempathy-gtk/empathy-contact-chooser.h
new file mode 100644
index 0000000..5af938d
--- /dev/null
+++ b/libempathy-gtk/empathy-contact-chooser.h
@@ -0,0 +1,55 @@
+/*
+ * empathy-contact-chooser.h
+ *
+ * EmpathyContactChooser
+ *
+ * (c) 2010, Collabora Ltd.
+ *
+ * Authors:
+ *    Guillaume Desmottes <guillaume desmottes collabora com>
+ */
+
+#ifndef __EMPATHY_CONTACT_CHOOSER_H__
+#define __EMPATHY_CONTACT_CHOOSER_H__
+
+#include <gtk/gtk.h>
+
+#include <telepathy-glib/account.h>
+
+#include "libempathy/empathy-tp-chat.h"
+
+G_BEGIN_DECLS
+
+#define EMPATHY_TYPE_CONTACT_CHOOSER	(empathy_contact_chooser_get_type ())
+#define EMPATHY_CONTACT_CHOOSER(obj)	(G_TYPE_CHECK_INSTANCE_CAST ((obj), EMPATHY_TYPE_CONTACT_CHOOSER, EmpathyContactChooser))
+#define EMPATHY_CONTACT_CHOOSER_CLASS(obj)	(G_TYPE_CHECK_CLASS_CAST ((obj), EMPATHY_TYPE_CONTACT_CHOOSER, EmpathyContactChooserClass))
+#define EMPATHY_IS_CONTACT_CHOOSER(obj)	(G_TYPE_CHECK_INSTANCE_TYPE ((obj), EMPATHY_TYPE_CONTACT_CHOOSER))
+#define EMPATHY_IS_CONTACT_CHOOSER_CLASS(obj)	(G_TYPE_CHECK_CLASS_TYPE ((obj), EMPATHY_TYPE_CONTACT_CHOOSER))
+#define EMPATHY_CONTACT_CHOOSER_GET_CLASS(obj)	(G_TYPE_INSTANCE_GET_CLASS ((obj), EMPATHY_TYPE_CONTACT_CHOOSER, EmpathyContactChooserClass))
+
+typedef struct _EmpathyContactChooser EmpathyContactChooser;
+typedef struct _EmpathyContactChooserClass EmpathyContactChooserClass;
+typedef struct _EmpathyContactChooserPrivate EmpathyContactChooserPrivate;
+
+struct _EmpathyContactChooser
+{
+  GtkBox parent;
+
+  EmpathyContactChooserPrivate *priv;
+};
+
+struct _EmpathyContactChooserClass
+{
+  GtkBoxClass parent_class;
+};
+
+GType empathy_contact_chooser_get_type (void);
+
+GtkWidget * empathy_contact_chooser_new (EmpathyTpChat *tp_chat);
+
+TpContact * empathy_contact_chooser_get_selected (
+    EmpathyContactChooser *self);
+
+G_END_DECLS
+
+#endif
diff --git a/src/empathy-invite-participant-dialog.c b/src/empathy-invite-participant-dialog.c
index 1551b47..f6471fb 100644
--- a/src/empathy-invite-participant-dialog.c
+++ b/src/empathy-invite-participant-dialog.c
@@ -14,6 +14,7 @@
 
 #include "empathy-invite-participant-dialog.h"
 
+#include <libempathy-gtk/empathy-contact-chooser.h>
 #include <libempathy-gtk/empathy-individual-view.h>
 #include <libempathy-gtk/empathy-ui-utils.h>
 
@@ -25,24 +26,12 @@ enum
   PROP_TP_CHAT = 1
 };
 
-typedef struct _AddTemporaryIndividualCtx AddTemporaryIndividualCtx;
-
 struct _EmpathyInviteParticipantDialogPrivate
 {
   EmpathyTpChat *tp_chat;
-  TpAccountManager *account_mgr;
-
-  EmpathyIndividualStore *store;
-  EmpathyIndividualView *view;
 
+  GtkWidget *chooser;
   GtkWidget *invite_button;
-
-  GPtrArray *search_words;
-  gchar *search_str;
-
-  /* Context representing the FolksIndividual which are added because of the
-   * current search from the user. */
-  AddTemporaryIndividualCtx *add_temp_ctx;
 };
 
 static void
@@ -86,340 +75,35 @@ invite_participant_dialog_set_property (GObject *object,
     };
 }
 
-struct _AddTemporaryIndividualCtx
-{
-  EmpathyInviteParticipantDialog *self;
-  /* List of owned FolksIndividual */
-  GList *individuals;
-};
-
-static AddTemporaryIndividualCtx *
-add_temporary_individual_ctx_new (EmpathyInviteParticipantDialog *self)
-{
-  AddTemporaryIndividualCtx *ctx = g_slice_new0 (AddTemporaryIndividualCtx);
-
-  ctx->self = self;
-  return ctx;
-}
-
-static void
-add_temporary_individual_ctx_free (AddTemporaryIndividualCtx *ctx)
-{
-  GList *l;
-
-  /* Remove all the individuals from the model */
-  for (l = ctx->individuals; l != NULL; l = g_list_next (l))
-    {
-      FolksIndividual *individual = l->data;
-
-      individual_store_remove_individual_and_disconnect (ctx->self->priv->store,
-          individual);
-
-      g_object_unref (individual);
-    }
-
-  g_list_free (ctx->individuals);
-  g_slice_free (AddTemporaryIndividualCtx, ctx);
-}
-
 static void
 invite_participant_dialog_dispose (GObject *object)
 {
   EmpathyInviteParticipantDialog *self = (EmpathyInviteParticipantDialog *)
     object;
 
-  tp_clear_pointer (&self->priv->add_temp_ctx,
-      add_temporary_individual_ctx_free);
-
   tp_clear_object (&self->priv->tp_chat);
-  tp_clear_object (&self->priv->store);
-  tp_clear_pointer (&self->priv->search_words, g_ptr_array_unref);
-  tp_clear_pointer (&self->priv->search_str, g_free);
-
-  tp_clear_object (&self->priv->account_mgr);
 
   G_OBJECT_CLASS (empathy_invite_participant_dialog_parent_class)->dispose (
       object);
 }
 
 static void
-empathy_invite_participant_dialog_class_init (
-    EmpathyInviteParticipantDialogClass *klass)
-{
-  GObjectClass *object_class = G_OBJECT_CLASS (klass);
-
-  object_class->get_property = invite_participant_dialog_get_property;
-  object_class->set_property = invite_participant_dialog_set_property;
-  object_class->dispose = invite_participant_dialog_dispose;
-
-  g_type_class_add_private (object_class,
-      sizeof (EmpathyInviteParticipantDialogPrivate));
-
-  g_object_class_install_property (object_class,
-      PROP_TP_CHAT,
-      g_param_spec_object ("tp-chat", "EmpathyTpChat", "EmpathyTpChat",
-          EMPATHY_TYPE_TP_CHAT,
-          G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
-}
-
-static void
-view_selection_changed_cb (GtkWidget *treeview,
+selection_changed_cb (GtkWidget *treeview,
+    FolksIndividual *selected,
     EmpathyInviteParticipantDialog *self)
 {
-  FolksIndividual *individual;
-
-  individual = empathy_individual_view_dup_selected (self->priv->view);
-
-  gtk_widget_set_sensitive (self->priv->invite_button, individual != NULL);
-
-  tp_clear_object (&individual);
-}
-
-/* Return the TpContact of @individual which is on the same connection as the
- * EmpathyTpChat */
-static TpContact *
-get_tp_contact_for_chat (EmpathyInviteParticipantDialog *self,
-    FolksIndividual *individual)
-{
-  TpContact *contact = NULL;
-  TpConnection *chat_conn;
-  GeeSet *personas;
-  GeeIterator *iter;
-
-  chat_conn = tp_channel_borrow_connection ((TpChannel *) self->priv->tp_chat);
-
-  personas = folks_individual_get_personas (individual);
-  iter = gee_iterable_iterator (GEE_ITERABLE (personas));
-  while (contact == FALSE && gee_iterator_next (iter))
-    {
-      TpfPersona *persona = gee_iterator_get (iter);
-      TpConnection *contact_conn;
-      TpContact *contact_cur = NULL;
-
-      if (TPF_IS_PERSONA (persona))
-        {
-          contact_cur = tpf_persona_get_contact (persona);
-          if (contact_cur != NULL)
-            {
-              contact_conn = tp_contact_get_connection (contact_cur);
-
-              if (!tp_strdiff (tp_proxy_get_object_path (contact_conn),
-                    tp_proxy_get_object_path (chat_conn)))
-                contact = contact_cur;
-            }
-        }
-
-      g_clear_object (&persona);
-    }
-  g_clear_object (&iter);
-
-  return contact;
-}
-
-static gboolean
-filter_func (GtkTreeModel *model,
-    GtkTreeIter *iter,
-    gpointer user_data)
-{
-  EmpathyInviteParticipantDialog *self = user_data;
-  FolksIndividual *individual;
-  TpContact *contact;
-  gboolean is_online;
-  GList *members, *l;
-  gboolean display = FALSE;
-
-  gtk_tree_model_get (model, iter,
-      EMPATHY_INDIVIDUAL_STORE_COL_INDIVIDUAL, &individual,
-      EMPATHY_INDIVIDUAL_STORE_COL_IS_ONLINE, &is_online,
-      -1);
-
-  if (individual == NULL)
-    goto out;
-
-  if (self->priv->search_words == NULL)
-    {
-      /* Not searching, display online contacts */
-      if (!is_online)
-        goto out;
-    }
-  else
-    {
-      if (!empathy_individual_match_string (individual,
-            self->priv->search_str, self->priv->search_words))
-        goto out;
-    }
-
-  /* Filter out individuals not having a persona on the same connection as the
-   * EmpathyTpChat. */
-  contact = get_tp_contact_for_chat (self, individual);
-
-  if (contact == NULL)
-    goto out;
-
-  /* Filter out contacts which are already in the chat */
-  members = empathy_contact_list_get_members (EMPATHY_CONTACT_LIST (
-        self->priv->tp_chat));
-
-  display = TRUE;
-
-  for (l = members; l != NULL; l = g_list_next (l))
-    {
-      EmpathyContact *member = l->data;
-      TpHandle handle;
-
-      /* Try to get the non-channel specific handle. */
-      handle = tp_channel_group_get_handle_owner (
-          TP_CHANNEL (self->priv->tp_chat),
-          empathy_contact_get_handle (member));
-      if (handle == 0)
-        handle = empathy_contact_get_handle (member);
-
-      if (handle == tp_contact_get_handle (contact))
-        {
-          display = FALSE;
-          break;
-        }
-    }
-
-  g_list_free_full (members, g_object_unref);
-
-out:
-  tp_clear_object (&individual);
-  return display;
+  gtk_widget_set_sensitive (self->priv->invite_button, selected != NULL);
 }
 
 static void
-get_contacts_cb (TpConnection *connection,
-    guint n_contacts,
-    TpContact * const *contacts,
-    const gchar * const *requested_ids,
-    GHashTable *failed_id_errors,
-    const GError *error,
-    gpointer user_data,
-    GObject *weak_object)
+invite_participant_dialog_constructed (GObject *object)
 {
   EmpathyInviteParticipantDialog *self =
-    (EmpathyInviteParticipantDialog *) weak_object;
-  AddTemporaryIndividualCtx *ctx = user_data;
-  TpAccount *account;
-  TpfPersonaStore *store;
-  FolksIndividual *individual;
-  TpfPersona *persona_new;
-  GeeSet *personas;
-
-  if (self->priv->add_temp_ctx != ctx)
-    /* another request has been started */
-    return;
-
-  if (n_contacts != 1)
-    return;
-
-  account = g_object_get_data (G_OBJECT (connection), "account");
-
-  store = tpf_persona_store_new (account);
-  personas = GEE_SET (
-      gee_hash_set_new (FOLKS_TYPE_PERSONA, g_object_ref, g_object_unref,
-      g_direct_hash, g_direct_equal));
-  persona_new = tpf_persona_new (contacts[0], store);
-  gee_collection_add (GEE_COLLECTION (personas),
-      tpf_persona_new (contacts[0], store));
-
-  individual = folks_individual_new (personas);
-
-  /* Pass ownership to the list */
-  ctx->individuals = g_list_prepend (ctx->individuals, individual);
-
-  individual_store_add_individual_and_connect (self->priv->store, individual);
-
-  g_clear_object (&persona_new);
-  g_clear_object (&personas);
-  g_object_unref (store);
-}
-
-static void
-add_temporary_individuals (EmpathyInviteParticipantDialog *self,
-    const gchar *id)
-{
-  GList *accounts, *l;
-
-  tp_clear_pointer (&self->priv->add_temp_ctx,
-      add_temporary_individual_ctx_free);
-
-  if (tp_str_empty (id))
-    return;
-
-  self->priv->add_temp_ctx = add_temporary_individual_ctx_new (self);
-
-  /* Try to add an individual for each connected account */
-  accounts = tp_account_manager_get_valid_accounts (self->priv->account_mgr);
-  for (l = accounts; l != NULL; l = g_list_next (l))
-    {
-      TpAccount *account = l->data;
-      TpConnection *conn;
-      TpContactFeature features[] = { TP_CONTACT_FEATURE_ALIAS,
-          TP_CONTACT_FEATURE_AVATAR_DATA,
-          TP_CONTACT_FEATURE_PRESENCE,
-          TP_CONTACT_FEATURE_CAPABILITIES };
-
-      conn = tp_account_get_connection (account);
-      if (conn == NULL)
-        continue;
-
-      /* One day we'll have tp_connection_get_account()... */
-      g_object_set_data_full (G_OBJECT (conn), "account",
-          g_object_ref (account), g_object_unref);
-
-      tp_connection_get_contacts_by_id (conn, 1, &id, G_N_ELEMENTS (features),
-          features, get_contacts_cb, self->priv->add_temp_ctx, NULL,
-          G_OBJECT (self));
-    }
-
-  g_list_free (accounts);
-}
-
-static void
-search_text_changed (GtkEntry *entry,
-    EmpathyInviteParticipantDialog *self)
-{
-  const gchar *id;
-
-  tp_clear_pointer (&self->priv->search_words, g_ptr_array_unref);
-  tp_clear_pointer (&self->priv->search_str, g_free);
-
-  id = gtk_entry_get_text (entry);
-
-  self->priv->search_words = empathy_live_search_strip_utf8_string (id);
-  self->priv->search_str = g_strdup (id);
-
-  add_temporary_individuals (self, id);
-
-  empathy_individual_view_refilter (self->priv->view);
-}
-
-static void
-empathy_invite_participant_dialog_init (EmpathyInviteParticipantDialog *self)
-{
+    (EmpathyInviteParticipantDialog *) object;
   GtkDialog *dialog = GTK_DIALOG (self);
   GtkWidget *label;
   char *str;
   GtkWidget *content;
-  EmpathyIndividualManager *mgr;
-  GtkTreeSelection *selection;
-  GtkWidget *scroll;
-  GtkWidget *search_entry;
-  GQuark features[] = { TP_ACCOUNT_MANAGER_FEATURE_CORE, 0 };
-
-  self->priv = G_TYPE_INSTANCE_GET_PRIVATE (
-      self, EMPATHY_TYPE_INVITE_PARTICIPANT_DIALOG,
-      EmpathyInviteParticipantDialogPrivate);
-
-  self->priv->account_mgr = tp_account_manager_dup ();
-
-  /* We don't wait for the CORE feature to be prepared, which is fine as we
-   * won't use the account manager until user starts searching. Furthermore,
-   * the AM has probably already been prepared by another Empathy
-   * component. */
-  tp_proxy_prepare_async (self->priv->account_mgr, features, NULL, NULL);
 
   content = gtk_dialog_get_content_area (dialog);
 
@@ -436,39 +120,13 @@ empathy_invite_participant_dialog_init (EmpathyInviteParticipantDialog *self)
 
   gtk_dialog_add_button (dialog, GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL);
 
-  /* Search entry */
-  search_entry = gtk_entry_new ();
-  gtk_box_pack_start (GTK_BOX (content), search_entry, FALSE, TRUE, 6);
-  gtk_widget_show (search_entry);
-
-  g_signal_connect (search_entry, "changed",
-      G_CALLBACK (search_text_changed), self);
-
-  /* Add the treeview */
-  mgr = empathy_individual_manager_dup_singleton ();
-  self->priv->store = empathy_individual_store_new (mgr);
-  g_object_unref (mgr);
-
-  empathy_individual_store_set_show_groups (self->priv->store, FALSE);
+  /* contact chooser */
+  self->priv->chooser = empathy_contact_chooser_new (self->priv->tp_chat);
+  gtk_box_pack_start (GTK_BOX (content), self->priv->chooser, TRUE, TRUE, 6);
+  gtk_widget_show (self->priv->chooser);
 
-  self->priv->view = empathy_individual_view_new (self->priv->store,
-      EMPATHY_INDIVIDUAL_VIEW_FEATURE_NONE, EMPATHY_INDIVIDUAL_FEATURE_NONE);
-
-  empathy_individual_view_set_custom_filter (self->priv->view,
-      filter_func, self);
-
-  selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (self->priv->view));
-
-  g_signal_connect (selection, "changed",
-      G_CALLBACK (view_selection_changed_cb), self);
-
-  scroll = gtk_scrolled_window_new (NULL, NULL);
-
-  gtk_container_add (GTK_CONTAINER (scroll), GTK_WIDGET (self->priv->view));
-
-  gtk_box_pack_start (GTK_BOX (content), scroll, TRUE, TRUE, 6);
-  gtk_widget_show (GTK_WIDGET (self->priv->view));
-  gtk_widget_show (scroll);
+  g_signal_connect (self->priv->chooser, "selection-changed",
+      G_CALLBACK (selection_changed_cb), self);
 
   self->priv->invite_button = gtk_dialog_add_button (dialog, _("Invite"),
       GTK_RESPONSE_ACCEPT);
@@ -481,6 +139,35 @@ empathy_invite_participant_dialog_init (EmpathyInviteParticipantDialog *self)
   gtk_window_set_default_size (GTK_WINDOW (self), -1, 400);
 }
 
+static void
+empathy_invite_participant_dialog_class_init (
+    EmpathyInviteParticipantDialogClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->get_property = invite_participant_dialog_get_property;
+  object_class->set_property = invite_participant_dialog_set_property;
+  object_class->constructed = invite_participant_dialog_constructed;
+  object_class->dispose = invite_participant_dialog_dispose;
+
+  g_type_class_add_private (object_class,
+      sizeof (EmpathyInviteParticipantDialogPrivate));
+
+  g_object_class_install_property (object_class,
+      PROP_TP_CHAT,
+      g_param_spec_object ("tp-chat", "EmpathyTpChat", "EmpathyTpChat",
+          EMPATHY_TYPE_TP_CHAT,
+          G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
+}
+
+static void
+empathy_invite_participant_dialog_init (EmpathyInviteParticipantDialog *self)
+{
+  self->priv = G_TYPE_INSTANCE_GET_PRIVATE (
+      self, EMPATHY_TYPE_INVITE_PARTICIPANT_DIALOG,
+      EmpathyInviteParticipantDialogPrivate);
+}
+
 GtkWidget *
 empathy_invite_participant_dialog_new (GtkWindow *parent,
     EmpathyTpChat *tp_chat)
@@ -501,15 +188,6 @@ TpContact *
 empathy_invite_participant_dialog_get_selected (
     EmpathyInviteParticipantDialog *self)
 {
-  FolksIndividual *individual;
-  TpContact *contact;
-
-  individual = empathy_individual_view_dup_selected (self->priv->view);
-  if (individual == NULL)
-    return NULL;
-
-  contact = get_tp_contact_for_chat (self, individual);
-
-  g_object_unref (individual);
-  return contact;
+  return empathy_contact_chooser_get_selected (
+      EMPATHY_CONTACT_CHOOSER (self->priv->chooser));
 }
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