IdeBufferChangeMonitor *
gbp_git_buffer_change_monitor_new (IdeBuffer *buffer,
IpcGitRepository *repository,
GFile *file,
GCancellable *cancellable,
GError **error)
{
GbpGitBufferChangeMonitor *ret;
g_autoptr(IpcGitChangeMonitor) proxy = NULL;
g_autoptr(IdeContext) context = NULL;
g_autoptr(GFile) workdir = NULL;
g_autofree gchar *relative_path = NULL;
g_autofree gchar *obj_path = NULL;
GDBusConnection *connection;
g_return_val_if_fail (IDE_IS_MAIN_THREAD (), NULL);
g_return_val_if_fail (IDE_IS_BUFFER (buffer), NULL);
g_return_val_if_fail (G_IS_FILE (file), NULL);
g_return_val_if_fail (!cancellable || G_IS_CANCELLABLE (cancellable), NULL);
context = ide_buffer_ref_context (buffer);
workdir = ide_context_ref_workdir (context);
if (!g_file_has_prefix (file, workdir))
{
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_NOT_SUPPORTED,
"Cannot monitor files outside the working directory");
return NULL;
}
relative_path = g_file_get_relative_path (workdir, file);
if (!ipc_git_repository_call_create_change_monitor_sync (repository,
relative_path,
&obj_path,
cancellable,
error))
return NULL;
connection = g_dbus_proxy_get_connection (G_DBUS_PROXY (repository));
if (!(proxy = ipc_git_change_monitor_proxy_new_sync (connection,
G_DBUS_PROXY_FLAGS_NONE,
NULL,
obj_path,
cancellable,
error)))
return NULL;
ret = g_object_new (GBP_TYPE_GIT_BUFFER_CHANGE_MONITOR,
"buffer", buffer,
NULL);
ret->proxy = g_steal_pointer (&proxy);
return IDE_BUFFER_CHANGE_MONITOR (g_steal_pointer (&ret));
}
static void
ide_buffer_change_monitor_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
IdeBufferChangeMonitor *self = IDE_BUFFER_CHANGE_MONITOR (object);
switch (prop_id)
{
case PROP_BUFFER:
ide_buffer_change_monitor_set_buffer (self, g_value_get_object (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
void
gbp_git_buffer_change_monitor_wait_async (GbpGitBufferChangeMonitor *self,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
g_autoptr(IdeTask) task = NULL;
IdeBuffer *buffer;
guint change_count;
g_return_if_fail (IDE_IS_MAIN_THREAD ());
g_return_if_fail (GBP_IS_GIT_BUFFER_CHANGE_MONITOR (self));
g_return_if_fail (!cancellable || G_IS_CANCELLABLE (cancellable));
task = ide_task_new (self, cancellable, callback, user_data);
ide_task_set_source_tag (task, gbp_git_buffer_change_monitor_wait_async);
if (ide_task_return_error_if_cancelled (task))
return;
buffer = ide_buffer_change_monitor_get_buffer (IDE_BUFFER_CHANGE_MONITOR (self));
change_count = ide_buffer_get_change_count (buffer);
/* Update the peer of buffer contents immediately in-case it does
* not yet have teh newest version.
*/
if (change_count != self->last_change_count)
{
g_autoptr(GBytes) bytes = ide_buffer_dup_content (buffer);
self->last_change_count = change_count;
ipc_git_change_monitor_call_update_content (self->proxy,
(const gchar *)g_bytes_get_data (bytes, NULL),
NULL, NULL, NULL);
}
ipc_git_change_monitor_call_list_changes (self->proxy,
cancellable,
gbp_git_buffer_change_monitor_wait_cb,
g_steal_pointer (&task));
}
static void
ide_git_buffer_change_monitor__buffer_delete_range_cb (IdeGitBufferChangeMonitor *self,
GtkTextIter *begin,
GtkTextIter *end,
IdeBuffer *buffer)
{
IdeBufferLineChange change;
g_assert (IDE_IS_GIT_BUFFER_CHANGE_MONITOR (self));
g_assert (begin);
g_assert (end);
g_assert (IDE_IS_BUFFER (buffer));
/*
* We need to recalculate the diff when text is deleted if:
*
* 1) The range includes a newline.
* 2) The current line change is set to NONE.
*
* Technically we need to do it on every change to be more correct, but that wastes a lot of
* power. So instead, we'll be a bit lazy about it here and pick up the other changes on a much
* more conservative timeout, generated by ide_git_buffer_change_monitor__buffer_changed_cb().
*/
if (gtk_text_iter_get_line (begin) != gtk_text_iter_get_line (end))
goto recalculate;
change = ide_git_buffer_change_monitor_get_change (IDE_BUFFER_CHANGE_MONITOR (self), begin);
if (change == IDE_BUFFER_LINE_CHANGE_NONE)
goto recalculate;
return;
recalculate:
/*
* We need to wait for the delete to occur, so mark it as necessary and let
* ide_git_buffer_change_monitor__buffer_delete_range_after_cb perform the operation.
*/
self->delete_range_requires_recalculation = TRUE;
}
static void
gbp_git_buffer_change_monitor_wait_cb (GObject *object,
GAsyncResult *result,
gpointer user_data)
{
IpcGitChangeMonitor *proxy = (IpcGitChangeMonitor *)object;
g_autoptr(GVariant) changes = NULL;
g_autoptr(IdeTask) task = user_data;
g_autoptr(GError) error = NULL;
GbpGitBufferChangeMonitor *self;
g_assert (IDE_IS_MAIN_THREAD ());
g_assert (IPC_IS_GIT_CHANGE_MONITOR (proxy));
g_assert (G_IS_ASYNC_RESULT (result));
g_assert (IDE_IS_TASK (task));
self = ide_task_get_source_object (task);
if (!ipc_git_change_monitor_call_list_changes_finish (proxy, &changes, result, &error))
{
g_clear_pointer (&self->cache, line_cache_free);
self->not_found = TRUE;
if (g_error_matches (error, G_DBUS_ERROR, G_DBUS_ERROR_FILE_NOT_FOUND))
ide_task_return_boolean (task, TRUE);
else
ide_task_return_error (task, g_steal_pointer (&error));
}
else
{
g_clear_pointer (&self->cache, line_cache_free);
self->not_found = FALSE;
self->cache = line_cache_new_from_variant (changes);
ide_buffer_change_monitor_emit_changed (IDE_BUFFER_CHANGE_MONITOR (self));
ide_task_return_boolean (task, TRUE);
}
}
static void
ide_git_buffer_change_monitor__buffer_insert_text_after_cb (IdeGitBufferChangeMonitor *self,
GtkTextIter *location,
gchar *text,
gint len,
IdeBuffer *buffer)
{
IdeBufferLineChange change;
g_assert (IDE_IS_GIT_BUFFER_CHANGE_MONITOR (self));
g_assert (location);
g_assert (text);
g_assert (IDE_IS_BUFFER (buffer));
/*
* We need to recalculate the diff when text is inserted if:
*
* 1) A newline is included in the text.
* 2) The line currently has flags of NONE.
*
* Technically we need to do it on every change to be more correct, but that wastes a lot of
* power. So instead, we'll be a bit lazy about it here and pick up the other changes on a much
* more conservative timeout, generated by ide_git_buffer_change_monitor__buffer_changed_cb().
*/
if (strchr (text, '\n') != NULL)
goto recalculate;
change = ide_git_buffer_change_monitor_get_change (IDE_BUFFER_CHANGE_MONITOR (self), location);
if (change == IDE_BUFFER_LINE_CHANGE_NONE)
goto recalculate;
return;
recalculate:
ide_git_buffer_change_monitor_recalculate (self);
}
static void
ide_git_buffer_change_monitor__calculate_cb (GObject *object,
GAsyncResult *result,
gpointer user_data_unused)
{
IdeGitBufferChangeMonitor *self = (IdeGitBufferChangeMonitor *)object;
g_autoptr(GHashTable) ret = NULL;
g_autoptr(GError) error = NULL;
g_assert (IDE_IS_GIT_BUFFER_CHANGE_MONITOR (self));
self->in_calculation = FALSE;
ret = ide_git_buffer_change_monitor_calculate_finish (self, result, &error);
if (!ret)
{
if (!g_error_matches (error, GGIT_ERROR, GGIT_ERROR_NOTFOUND))
g_message ("%s", error->message);
}
else
{
g_clear_pointer (&self->state, g_hash_table_unref);
self->state = g_hash_table_ref (ret);
}
ide_buffer_change_monitor_emit_changed (IDE_BUFFER_CHANGE_MONITOR (self));
/*
* Recalculate the state if the buffer has changed since we submitted our request.
*/
if (self->state_dirty)
ide_git_buffer_change_monitor_calculate_async (self,
NULL,
ide_git_buffer_change_monitor__calculate_cb,
NULL);
}