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/*
* The MIT License (MIT)
*
* Copyright (c) 2019 Alibaba Group
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
import 'dart:async';
import 'package:flutter/material.dart';
import 'package:flutter_boost/container/boost_container.dart';
import 'package:flutter_boost/flutter_boost.dart';
import 'package:flutter_boost/messaging/native_container_event_handler.dart';
import 'package:flutter_boost/support/logger.dart';
class ContainerCoordinator implements NativeContainerEventHandler {
static final ContainerCoordinator singleton = ContainerCoordinator();
final Map<String, PageBuilder> _pageBuilders = <String, PageBuilder>{};
PageBuilder _defaultPageBuilder;
ContainerCoordinator() {
FlutterBoost.singleton.addEventListener("lifecycle", (String name , Map arguments){
onChannelEvent(arguments);
});
}
BoostContainerSettings _createContainerSettings(
String name, Map params, String pageId) {
Widget page;
final BoostContainerSettings routeSettings = BoostContainerSettings(
uniqueId: pageId,
name: name,
params: params,
builder: (BuildContext ctx) {
//Try to build a page using keyed builder.
if (_pageBuilders[name] != null) {
page = _pageBuilders[name](name, params, pageId);
}
//Build a page using default builder.
if (page == null && _defaultPageBuilder != null) {
page = _defaultPageBuilder(name, params, pageId);
}
assert(page != null);
Logger.log('build widget:$page for page:$name($pageId)');
return page;
});
return routeSettings;
}
//Register a default page builder.
void registerDefaultPageBuilder(PageBuilder builder) {
_defaultPageBuilder = builder;
}
//Register page builder for a key.
void registerPageBuilder(String pageName, PageBuilder builder) {
if (pageName != null && builder != null) {
_pageBuilders[pageName] = builder;
}
}
void registerPageBuilders(Map<String, PageBuilder> builders) {
if (builders?.isNotEmpty == true) {
_pageBuilders.addAll(builders);
}
}
void onChannelEvent(dynamic event) {
if (event is Map) {
Map map = event;
final String type = map['type'];
switch (type) {
//Handler back key pressed event.
case 'backPressedCallback':
{
final String id = map['uniqueId'];
FlutterBoost.containerManager
?.containerStateOf(id)
?.performBackPressed();
}
break;
//Enter foregroud
case 'foreground':
{
FlutterBoost.containerManager?.setForeground();
}
break;
//Enter background
case 'background':
{
FlutterBoost.containerManager?.setBackground();
}
break;
//Schedule a frame.
case 'scheduleFrame':
{
WidgetsBinding.instance.scheduleForcedFrame();
Future<dynamic>.delayed(Duration(milliseconds: 250),
() => WidgetsBinding.instance.scheduleFrame());
}
break;
}
}
}
//Messaging
@override
bool nativeContainerWillShow(String name, Map params, String pageId) {
if (FlutterBoost.containerManager?.containsContainer(pageId) != true) {
FlutterBoost.containerManager
?.pushContainer(_createContainerSettings(name, params, pageId));
}
return true;
}
@override
bool nativeContainerDidShow(String name, Map params, String pageId) {
FlutterBoost.containerManager
?.showContainer(_createContainerSettings(name, params, pageId));
performContainerLifeCycle(_createContainerSettings(name, params, pageId),
ContainerLifeCycle.Appear);
Logger.log(
'native containner did show,\nmanager dump:\n${FlutterBoost.containerManager?.dump()}');
return true;
}
@override
bool nativeContainerWillDisappear(String name, Map params, String pageId) {
return true;
}
@override
bool nativeContainerDidDisappear(String name, Map params, String pageId) {
performContainerLifeCycle(_createContainerSettings(name, params, pageId),
ContainerLifeCycle.Disappear);
return true;
}
@override
bool nativeContainerDidInit(String name, Map params, String pageId) {
performContainerLifeCycle(_createContainerSettings(name, params, pageId),
ContainerLifeCycle.Init);
return true;
}
@override
bool nativeContainerWillDealloc(String name, Map params, String pageId) {
performContainerLifeCycle(_createContainerSettings(name, params, pageId),
ContainerLifeCycle.Destroy);
FlutterBoost.containerManager?.remove(pageId);
Logger.log(
'native containner dealloc, \n manager dump:\n${FlutterBoost.containerManager?.dump()}');
return true;
}
static void performContainerLifeCycle(
BoostContainerSettings settings, ContainerLifeCycle lifeCycle) {
for (BoostContainerLifeCycleObserver observer in FlutterBoost
.singleton.observersHolder
.observersOf<BoostContainerLifeCycleObserver>()) {
observer(lifeCycle, settings);
}
Logger.log(
'BoostContainerLifeCycleObserver container:${settings.name} lifeCycle:$lifeCycle');
}
}