blob: 55e6afa567b5f96358acbc5d96588bbcf7679a56 [file] [log] [blame]
// Copyright 2017 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'dart:convert';
import 'dart:typed_data';
import 'package:fidl_fuchsia_mem/fidl.dart' as fuchsia_mem;
import 'package:fidl_fuchsia_modular/fidl.dart';
import 'package:zircon/zircon.dart';
/// Dart-idiomatic wrapper to create a modular.Intent.
class IntentBuilder {
final Intent _intent;
// Creates a new intent builder with both an action and a handler.
IntentBuilder({String action, String handler})
: _intent = Intent(
action: action, handler: handler, parameters: <IntentParameter>[]);
// Creates a new intent builder where the intent's action is set to the
// provided name.
IntentBuilder.action(String name)
: _intent = Intent(action: name, parameters: <IntentParameter>[]);
// Creates a new intent builder where the intent's handler is set to the
// provided handler string.
IntentBuilder.handler(String handler)
: _intent = Intent(
action: '', handler: handler, parameters: <IntentParameter>[]);
// Converts |value| to a JSON object and adds it to the Intent. For typed
// data, prefer to use addParameterFromEntityReference().
void addParameter<T>(String name, T value) {
String jsonString = json.encode(value);
var jsonList = Uint8List.fromList(utf8.encode(jsonString));
var data = fuchsia_mem.Buffer(
vmo: SizedVmo.fromUint8List(jsonList),
size: jsonList.length,
_addParameter(name, IntentParameterData.withJson(data));
// Adds a parameter that containts an entity reference to the intent.
void addParameterFromEntityReference(String name, String reference) {
_addParameter(name, IntentParameterData.withEntityReference(reference));
// The intent being built.
Intent get intent => _intent;
void _addParameterFromIntentParameter(IntentParameter parameter) {
void _addParameter(String name, IntentParameterData parameterData) {
IntentParameter(name: name, data: parameterData));