/**
* inf_text_gtk_viewport_set_active_user:
* @viewport: A #InfTextGtkViewport.
* @user: A user from @viewport's user table, or %NULL.
*
* Sets the user for which perspective to draw the viewport. The cursor
* position for teh active user is not draws since it is assumed that the
* viewport's "real" scrollbars match the active user's position.
*/
void
inf_text_gtk_viewport_set_active_user(InfTextGtkViewport* viewport,
InfTextUser* user)
{
InfTextGtkViewportPrivate* priv;
InfTextUser* active_user;
g_return_if_fail(INF_TEXT_GTK_IS_VIEWPORT(viewport));
g_return_if_fail(user == NULL || INF_TEXT_IS_USER(user));
priv = INF_TEXT_GTK_VIEWPORT_PRIVATE(viewport);
g_return_if_fail(
user == NULL ||
inf_user_table_lookup_user_by_id(
priv->user_table,
inf_user_get_id(INF_USER(user))
) == INF_USER(user)
);
if(priv->active_user != NULL)
{
active_user = priv->active_user;
priv->active_user = NULL;
inf_text_gtk_viewport_user_added(viewport, active_user);
}
if(user != NULL)
{
inf_text_gtk_viewport_user_removed(viewport, user);
}
priv->active_user = user;
g_object_notify(G_OBJECT(viewport), "active-user");
}
static InfAdoptedUser*
inf_adopted_session_user_from_request_xml(InfAdoptedSession* session,
xmlNodePtr xml,
GError** error)
{
InfUserTable* user_table;
InfUser* user;
guint user_id;
user_table = inf_session_get_user_table(INF_SESSION(session));
if(!inf_xml_util_get_attribute_uint_required(xml, "user", &user_id, error))
return FALSE;
/* User ID 0 means no user */
if(user_id == 0) return NULL;
user = inf_user_table_lookup_user_by_id(user_table, user_id);
if(user == NULL)
{
g_set_error(
error,
inf_adopted_session_error_quark,
INF_ADOPTED_SESSION_ERROR_NO_SUCH_USER,
_("No such user with user ID '%u'"),
user_id
);
return NULL;
}
g_assert(INF_ADOPTED_IS_USER(user));
return INF_ADOPTED_USER(user);
}
static gboolean
inf_adopted_session_process_xml_sync(InfSession* session,
InfXmlConnection* connection,
const xmlNodePtr xml,
GError** error)
{
InfAdoptedSessionClass* session_class;
InfAdoptedRequest* request;
InfAdoptedUser* user;
InfAdoptedRequestLog* log;
if(strcmp((const char*)xml->name, "sync-request") == 0)
{
session_class = INF_ADOPTED_SESSION_GET_CLASS(session);
g_assert(session_class->xml_to_request != NULL);
request = session_class->xml_to_request(
INF_ADOPTED_SESSION(session),
xml,
NULL, /* TODO: Diff to previous request, if any. */
TRUE,
error
);
if(request == NULL) return FALSE;
user = INF_ADOPTED_USER(
inf_user_table_lookup_user_by_id(
inf_session_get_user_table(session),
inf_adopted_request_get_user_id(request)
)
);
log = inf_adopted_user_get_request_log(user);
if(inf_adopted_session_validate_request(log, request, error) == FALSE)
{
g_object_unref(request);
return FALSE;
}
inf_adopted_request_log_add_request(log, request);
g_object_unref(request);
return TRUE;
}
return INF_SESSION_CLASS(parent_class)->process_xml_sync(
session,
connection,
xml,
error
);
}
/* Breadcasts a request N times - makes only sense for undo and redo requests,
* so that's the only thing we offer API for. */
static void
inf_adopted_session_broadcast_n_requests(InfAdoptedSession* session,
InfAdoptedRequest* request,
guint n)
{
InfAdoptedSessionPrivate* priv;
InfAdoptedSessionClass* session_class;
InfUserTable* user_table;
guint user_id;
InfUser* user;
InfAdoptedSessionLocalUser* local;
xmlNodePtr xml;
priv = INF_ADOPTED_SESSION_PRIVATE(session);
session_class = INF_ADOPTED_SESSION_GET_CLASS(session);
g_assert(session_class->request_to_xml != NULL);
user_table = inf_session_get_user_table(INF_SESSION(session));
user_id = inf_adopted_request_get_user_id(request);
user = inf_user_table_lookup_user_by_id(user_table, user_id);
g_assert(user != NULL);
local = inf_adopted_session_lookup_local_user(
session,
INF_ADOPTED_USER(user)
);
g_assert(local != NULL);
xml = xmlNewNode(NULL, (const xmlChar*)"request");
session_class->request_to_xml(
session,
xml,
request,
local->last_send_vector,
FALSE
);
if(n > 1) inf_xml_util_set_attribute_uint(xml, "num", n);
inf_session_send_to_subscriptions(INF_SESSION(session), xml);
inf_adopted_state_vector_free(local->last_send_vector);
local->last_send_vector = inf_adopted_state_vector_copy(
inf_adopted_request_get_vector(request)
);
/* Add this request to last send vector if it increases vector time
* (-> affects buffer). */
if(inf_adopted_request_affects_buffer(request) == TRUE)
inf_adopted_state_vector_add(local->last_send_vector, user_id, n);
inf_adopted_session_stop_noop_timer(session, local);
}
void Gobby::ChatSessionView::set_active_user(InfUser* user)
{
g_assert(
user == NULL ||
inf_user_table_lookup_user_by_id(
inf_session_get_user_table(INF_SESSION(m_session)),
inf_user_get_id(INF_USER(user)))
== INF_USER(user));
inf_gtk_chat_set_active_user(m_chat, user);
active_user_changed(user);
}
static gboolean
infc_session_proxy_handle_user_rejoin(InfcSessionProxy* proxy,
InfXmlConnection* connection,
xmlNodePtr xml,
GError** error)
{
InfcSessionProxyPrivate* priv;
InfSessionClass* session_class;
GArray* array;
InfUser* user;
const GParameter* idparam;
GParameter* param;
guint id;
gboolean result;
guint i;
priv = INFC_SESSION_PROXY_PRIVATE(proxy);
session_class = INF_SESSION_GET_CLASS(priv->session);
array = session_class->get_xml_user_props(priv->session, connection, xml);
/* Find rejoining user first */
idparam = inf_session_lookup_user_property(
(const GParameter*)array->data,
array->len,
"id"
);
if(idparam == NULL)
{
g_set_error(
error,
inf_request_error_quark(),
INF_REQUEST_ERROR_NO_SUCH_ATTRIBUTE,
_("Request does not contain required attribute 'id'")
);
goto error;
}
id = g_value_get_uint(&idparam->value);
user = inf_user_table_lookup_user_by_id(
inf_session_get_user_table(priv->session),
id
);
if(user == NULL)
{
g_set_error(
error,
inf_user_error_quark(),
INF_USER_ERROR_NO_SUCH_USER,
_("No such user with ID %u"),
id
);
goto error;
}
/* Set local flag if the join was requested by us (seq is present in
* server response). */
param = inf_session_get_user_property(array, "flags");
g_assert(!G_IS_VALUE(¶m->value)); /* must not have been set already */
g_value_init(¶m->value, INF_TYPE_USER_FLAGS);
if(xmlHasProp(xml, (const xmlChar*)"seq") != NULL)
g_value_set_flags(¶m->value, INF_USER_LOCAL);
else
g_value_set_flags(¶m->value, 0);
/* Set connection. If none was given, use publisher connection */
param = inf_session_get_user_property(array, "connection");
if(!G_IS_VALUE(¶m->value))
{
g_value_init(¶m->value, INF_TYPE_XML_CONNECTION);
g_value_set_object(¶m->value, G_OBJECT(connection));
}
result = session_class->validate_user_props(
priv->session,
(const GParameter*)array->data,
array->len,
user,
error
);
if(result == FALSE)
goto error;
/* Set properties on the found user object, performing the rejoin */
g_object_freeze_notify(G_OBJECT(user));
for(i = 0; i < array->len; ++ i)
{
param = &g_array_index(array, GParameter, i);
/* Don't set ID because the ID is the same anyway (we did the user lookup
* by it). The "id" property is construct only anyway. */
if(strcmp(param->name, "id") != 0)
g_object_set_property(G_OBJECT(user), param->name, ¶m->value);
}
/* TODO: Set user status to available, if the server did not send the
* status property? Require the status property being set on a rejoin?
* Make sure it is not unavailable? */
g_object_thaw_notify(G_OBJECT(user));
for(i = 0; i < array->len; ++ i)
g_value_unset(&g_array_index(array, GParameter, i).value);
g_array_free(array, TRUE);
infc_session_proxy_succeed_user_request(proxy, xml, user);
return TRUE;
error:
for(i = 0; i < array->len; ++ i)
g_value_unset(&g_array_index(array, GParameter, i).value);
g_array_free(array, TRUE);
return FALSE;
}
static gboolean
perform_test(guint max_total_log_size,
InfTextChunk* initial,
GSList* users,
GSList* requests,
GError** error)
{
InfTextBuffer* buffer;
InfCommunicationManager* manager;
InfIo* io;
InfTextSession* session;
InfAdoptedAlgorithm* algorithm;
InfUserTable* user_table;
InfTextUser* user;
gchar* user_name;
GSList* item;
xmlNodePtr request;
gboolean result;
GError* local_error;
guint verify_user_id;
InfAdoptedUser* verify_user;
guint verify_log_size;
gint verify_can_undo;
gint verify_can_redo;
InfAdoptedRequestLog* log;
guint log_size;
buffer = INF_TEXT_BUFFER(inf_text_default_buffer_new("UTF-8"));
inf_text_buffer_insert_chunk(buffer, 0, initial, NULL);
manager = inf_communication_manager_new();
io = INF_IO(inf_standalone_io_new());
user_table = inf_user_table_new();
local_error = NULL;
for(item = users; item != NULL; item = g_slist_next(item))
{
user_name = g_strdup_printf("User_%u", GPOINTER_TO_UINT(item->data));
user = INF_TEXT_USER(
g_object_new(
INF_TEXT_TYPE_USER,
"id", GPOINTER_TO_UINT(item->data),
"name", user_name,
"status", INF_USER_ACTIVE,
"flags", 0,
NULL
)
);
g_free(user_name);
inf_user_table_add_user(user_table, INF_USER(user));
g_object_unref(user);
}
session = INF_TEXT_SESSION(
g_object_new(
INF_TEXT_TYPE_SESSION,
"communication-manager", manager,
"buffer", buffer,
"io", io,
"user_table", user_table,
"max-total-log-size", max_total_log_size,
NULL
)
);
algorithm = inf_adopted_session_get_algorithm(INF_ADOPTED_SESSION(session));
g_object_unref(io);
g_object_unref(manager);
g_object_unref(user_table);
g_object_unref(buffer);
for(item = requests; item != NULL; item = item->next)
{
request = (xmlNodePtr)item->data;
if(strcmp((const char*)request->name, "request") == 0)
{
/* Request */
result = inf_communication_object_received(
INF_COMMUNICATION_OBJECT(session),
NULL,
request,
&local_error
);
if(local_error != NULL)
goto fail;
}
else
{
/* TODO: Make an extra function out of this: */
/* Verify */
result = inf_xml_util_get_attribute_uint_required(
request,
"user",
&verify_user_id,
&local_error
);
if(result == FALSE)
goto fail;
verify_user = INF_ADOPTED_USER(
inf_user_table_lookup_user_by_id(user_table, verify_user_id)
);
if(verify_user == NULL)
{
g_set_error(
error,
inf_test_text_cleanup_error_quark(),
INF_TEST_TEXT_CLEANUP_USER_UNAVAILABLE,
"User ID '%u' not available",
verify_user_id
);
goto fail;
}
result = inf_xml_util_get_attribute_uint(
request,
"log-size",
&verify_log_size,
&local_error
);
if(local_error) goto fail;
if(result)
{
log = inf_adopted_user_get_request_log(INF_ADOPTED_USER(verify_user));
log_size = inf_adopted_request_log_get_end(log) -
inf_adopted_request_log_get_begin(log);
if(verify_log_size != log_size)
{
g_set_error(
error,
inf_test_text_cleanup_error_quark(),
INF_TEST_TEXT_CLEANUP_VERIFY_FAILED,
"Log size does not match; got %u, but expected %u",
log_size,
verify_log_size
);
goto fail;
}
}
result = inf_xml_util_get_attribute_int(
request,
"can-undo",
&verify_can_undo,
&local_error
);
if(local_error) goto fail;
if(result)
{
result = inf_adopted_algorithm_can_undo(algorithm, verify_user);
if(result != verify_can_undo)
{
g_set_error(
error,
inf_test_text_cleanup_error_quark(),
INF_TEST_TEXT_CLEANUP_VERIFY_FAILED,
"can-undo does not match; got %d, but expected %d",
(guint)result,
verify_can_undo
);
goto fail;
}
}
result = inf_xml_util_get_attribute_int(
request,
"can-redo",
&verify_can_redo,
&local_error
);
if(local_error) goto fail;
if(result)
{
result = inf_adopted_algorithm_can_redo(algorithm, verify_user);
if(result != verify_can_redo)
{
g_set_error(
error,
inf_test_text_cleanup_error_quark(),
INF_TEST_TEXT_CLEANUP_VERIFY_FAILED,
"can-redo does not match; got %d, but expected %d",
(guint)result,
verify_can_redo
);
goto fail;
}
}
}
}
g_object_unref(session);
return TRUE;
fail:
g_object_unref(session);
if(local_error) g_propagate_error(error, local_error);
return FALSE;
}
static gboolean
infd_note_plugin_text_read_user(InfUserTable* user_table,
xmlNodePtr node,
GError** error)
{
guint id;
gdouble hue;
xmlChar* name;
gboolean result;
InfUser* user;
if(!inf_xml_util_get_attribute_uint_required(node, "id", &id, error))
return FALSE;
if(!inf_xml_util_get_attribute_double_required(node, "hue", &hue, error))
return FALSE;
name = inf_xml_util_get_attribute_required(node, "name", error);
if(name == NULL)
return FALSE;
if(inf_user_table_lookup_user_by_id(user_table, id) != NULL)
{
g_set_error(
error,
g_quark_from_static_string("INF_NOTE_PLUGIN_TEXT_ERROR"),
INFD_NOTE_PLUGIN_TEXT_ERROR_USER_EXISTS,
"User with ID %u exists already",
id
);
result = FALSE;
}
else
{
if(inf_user_table_lookup_user_by_name(user_table, (const gchar*)name))
{
g_set_error(
error,
g_quark_from_static_string("INF_NOTE_PLUGIN_TEXT_ERROR"),
INFD_NOTE_PLUGIN_TEXT_ERROR_USER_EXISTS,
"User with name `%s' exists already",
(const gchar*)name
);
result = FALSE;
}
else
{
user = INF_USER(
g_object_new(
INF_TEXT_TYPE_USER,
"id", id,
"name", name,
"hue", hue,
NULL
)
);
inf_user_table_add_user(user_table, user);
g_object_unref(user);
result = TRUE;
}
}
xmlFree(name);
return result;
}
static gboolean
infd_note_plugin_text_read_buffer(InfTextBuffer* buffer,
InfUserTable* user_table,
xmlNodePtr node,
GError** error)
{
xmlNodePtr child;
guint author;
gchar* content;
gboolean result;
gboolean res;
InfUser* user;
gsize bytes;
guint chars;
g_assert(inf_text_buffer_get_length(buffer) == 0);
for(child = node->children; child != NULL; child = child->next)
{
if(child->type != XML_ELEMENT_NODE)
continue;
if(strcmp((const gchar*)child->name, "segment") == 0)
{
res = inf_xml_util_get_attribute_uint_required(
child,
"author",
&author,
error
);
if(res == FALSE)
{
result = FALSE;
break;
}
if(author != 0)
{
user = inf_user_table_lookup_user_by_id(user_table, author);
if(user == NULL)
{
g_set_error(
error,
g_quark_from_static_string("INF_NOTE_PLUGIN_TEXT_ERROR"),
INFD_NOTE_PLUGIN_TEXT_ERROR_NO_SUCH_USER,
"User with ID %u does not exist",
author
);
result = FALSE;
break;
}
}
else
{
user = NULL;
}
content = inf_xml_util_get_child_text(child, &bytes, &chars, error);
if(!content)
{
result = FALSE;
break;
}
if(*content != '\0')
{
/* TODO: Use inf_text_buffer_append when we have it */
inf_text_buffer_insert_text(
buffer,
inf_text_buffer_get_length(buffer),
content,
bytes,
chars,
user
);
}
g_free(content);
}
else
{
infd_note_plugin_text_session_unexpected_node(child, error);
result = FALSE;
break;
}
}
if(child == NULL)
result = TRUE;
return result;
}
