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Add an initial hack at an iOS ISuspensionHost
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,132 @@ | ||
| using System; | ||
| using System.Linq; | ||
| using System.Reactive; | ||
| using System.Reactive.Linq; | ||
| using MonoTouch.Foundation; | ||
| using MonoTouch.UIKit; | ||
| using System.Reactive.Subjects; | ||
| using System.Collections.Generic; | ||
| using System.Reactive.Disposables; | ||
| using ReactiveUI.Routing; | ||
|
|
||
| namespace ReactiveUI.Mobile | ||
| { | ||
| class CocoaSuspensionHost : ISuspensionHost | ||
| { | ||
| public IObservable<Unit> IsLaunchingNew { get { return ((AutoSuspendAppDelegate)UIApplication.SharedApplication.Delegate).SuspensionHost.IsLaunchingNew; } } | ||
| public IObservable<Unit> IsResuming { get { return ((AutoSuspendAppDelegate)UIApplication.SharedApplication.Delegate).SuspensionHost.IsResuming; } } | ||
| public IObservable<Unit> IsUnpausing { get { return ((AutoSuspendAppDelegate)UIApplication.SharedApplication.Delegate).SuspensionHost.IsUnpausing; } } | ||
| public IObservable<IDisposable> ShouldPersistState { get { return ((AutoSuspendAppDelegate)UIApplication.SharedApplication.Delegate).SuspensionHost.ShouldPersistState; } } | ||
| public IObservable<Unit> ShouldInvalidateState { get { return ((AutoSuspendAppDelegate)UIApplication.SharedApplication.Delegate).SuspensionHost.ShouldInvalidateState; } } | ||
|
|
||
| public void SetupDefaultSuspendResume(ISuspensionDriver driver = null) | ||
| { | ||
| var app = (AutoSuspendAppDelegate) UIApplication.SharedApplication.Delegate; | ||
| app.setupDefaultSuspendResume(driver); | ||
| } | ||
| } | ||
|
|
||
| public abstract class AutoSuspendAppDelegate : UIApplicationDelegate, IEnableLogger | ||
| { | ||
| readonly Subject<UIApplication> _finishedLaunching = new Subject<UIApplication>(); | ||
| readonly Subject<UIApplication> _activated = new Subject<UIApplication>(); | ||
| readonly Subject<UIApplication> _willTerminate = new Subject<UIApplication>(); | ||
|
|
||
| internal SuspensionHost SuspensionHost; | ||
|
|
||
| readonly Subject<IApplicationRootState> _viewModelChanged = new Subject<IApplicationRootState>(); | ||
| IApplicationRootState _ViewModel; | ||
|
|
||
| public IApplicationRootState ViewModel { | ||
| get { return _ViewModel; } | ||
| set { | ||
| if (_ViewModel == value) return; | ||
| _ViewModel = value; | ||
| _viewModelChanged.OnNext(value); | ||
| } | ||
| } | ||
|
|
||
| public IDictionary<string, string> LaunchOptions { get; protected set; } | ||
|
|
||
| public AutoSuspendAppDelegate() | ||
| { | ||
| var host = new SuspensionHost(); | ||
| host.IsLaunchingNew = Observable.Never<Unit>(); | ||
| host.IsResuming = _finishedLaunching.Select(_ => Unit.Default); | ||
| host.IsUnpausing = _activated.Select(_ => Unit.Default); | ||
|
|
||
| var untimelyDeath = new Subject<Unit>(); | ||
| AppDomain.CurrentDomain.UnhandledException += (o,e) => untimelyDeath.OnNext(Unit.Default); | ||
|
|
||
| host.ShouldInvalidateState = untimelyDeath; | ||
| host.ShouldPersistState = _willTerminate.Select(app => { | ||
| var taskId = app.BeginBackgroundTask(new NSAction(() => {})); | ||
| return Disposable.Create(() => app.EndBackgroundTask(taskId)); | ||
| }); | ||
|
|
||
| SuspensionHost = host; | ||
| } | ||
|
|
||
| public override bool FinishedLaunching(UIApplication application, NSDictionary launchOptions) | ||
| { | ||
| if (launchOptions != null) { | ||
| LaunchOptions = launchOptions.Keys.ToDictionary(k => k.ToString(), v => launchOptions[v].ToString()); | ||
| } else { | ||
| LaunchOptions = new Dictionary<string, string>(); | ||
| } | ||
|
|
||
| // NB: This is run in-context (i.e. not scheduled), so by the time this | ||
| // statement returns, UIWindow should be created already | ||
| _finishedLaunching.OnNext(application); | ||
|
|
||
| return true; | ||
| } | ||
|
|
||
| public override void OnActivated(UIApplication application) | ||
| { | ||
| _activated.OnNext(application); | ||
| } | ||
|
|
||
| public override void WillTerminate(UIApplication application) | ||
| { | ||
| _willTerminate.OnNext(application); | ||
| } | ||
|
|
||
| internal void setupDefaultSuspendResume(ISuspensionDriver driver) | ||
| { | ||
| driver = driver ?? RxApp.GetService<ISuspensionDriver>(); | ||
|
|
||
| var window = new UIWindow(UIScreen.MainScreen.Bounds); | ||
| _viewModelChanged.Subscribe(vm => { | ||
| var frame = RxApp.GetService<IViewFor>("InitialPage"); | ||
| frame.ViewModel = vm; | ||
| window.RootViewController = (UIViewController)frame; | ||
| window.MakeKeyAndVisible(); | ||
| }); | ||
|
|
||
| SuspensionHost.ShouldInvalidateState | ||
| .SelectMany(_ => driver.InvalidateState()) | ||
| .LoggedCatch(this, Observable.Return(Unit.Default), "Tried to invalidate app state") | ||
| .Subscribe(_ => this.Log().Info("Invalidated app state")); | ||
|
|
||
| SuspensionHost.ShouldPersistState | ||
| .SelectMany(x => driver.SaveState(ViewModel).Finally(x.Dispose)) | ||
| .LoggedCatch(this, Observable.Return(Unit.Default), "Tried to persist app state") | ||
| .Subscribe(_ => this.Log().Info("Persisted application state")); | ||
|
|
||
| SuspensionHost.IsResuming | ||
| .SelectMany(x => driver.LoadState<IApplicationRootState>()) | ||
| .LoggedCatch(this, | ||
| Observable.Defer(() => Observable.Return(RxApp.GetService<IApplicationRootState>())), | ||
| "Failed to restore app state from storage, creating from scratch") | ||
| .ObserveOn(RxApp.DeferredScheduler) | ||
| .Subscribe(x => ViewModel = x); | ||
|
|
||
| SuspensionHost.IsLaunchingNew.Subscribe(_ => { | ||
| ViewModel = RxApp.GetService<IApplicationRootState>(); | ||
| }); | ||
| } | ||
| } | ||
| } | ||
|
|
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| <?xml version="1.0" encoding="utf-8"?> | ||
| <Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> | ||
| <PropertyGroup> | ||
| <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration> | ||
| <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform> | ||
| <ProductVersion>10.0.0</ProductVersion> | ||
| <SchemaVersion>2.0</SchemaVersion> | ||
| <ProjectGuid>{9091337A-9E94-4DBD-801E-15E10DB72FFC}</ProjectGuid> | ||
| <ProjectTypeGuids>{6BC8ED88-2882-458C-8E55-DFD12B67127B};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids> | ||
| <OutputType>Library</OutputType> | ||
| <RootNamespace>ReactiveUI.Mobile</RootNamespace> | ||
| <IPhoneResourcePrefix>Resources</IPhoneResourcePrefix> | ||
| <AssemblyName>ReactiveUI.Mobile_Monotouch</AssemblyName> | ||
| </PropertyGroup> | ||
| <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' "> | ||
| <DebugSymbols>True</DebugSymbols> | ||
| <DebugType>full</DebugType> | ||
| <Optimize>False</Optimize> | ||
| <OutputPath>bin\Debug\Monotouch</OutputPath> | ||
| <DefineConstants>DEBUG; MONO; UIKIT</DefineConstants> | ||
| <ErrorReport>prompt</ErrorReport> | ||
| <WarningLevel>4</WarningLevel> | ||
| <ConsolePause>False</ConsolePause> | ||
| </PropertyGroup> | ||
| <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' "> | ||
| <DebugType>none</DebugType> | ||
| <Optimize>True</Optimize> | ||
| <OutputPath>bin\Release\Monotouch</OutputPath> | ||
| <ErrorReport>prompt</ErrorReport> | ||
| <WarningLevel>4</WarningLevel> | ||
| <ConsolePause>False</ConsolePause> | ||
| <DefineConstants>MONO; UIKIT</DefineConstants> | ||
| </PropertyGroup> | ||
| <ItemGroup> | ||
| <Reference Include="System" /> | ||
| <Reference Include="System.Xml" /> | ||
| <Reference Include="System.Core" /> | ||
| <Reference Include="monotouch" /> | ||
| <Reference Include="System.Reactive.Core"> | ||
| <HintPath>..\ext\ios\System.Reactive.Core.dll</HintPath> | ||
| </Reference> | ||
| <Reference Include="System.Reactive.Interfaces"> | ||
| <HintPath>..\ext\ios\System.Reactive.Interfaces.dll</HintPath> | ||
| </Reference> | ||
| <Reference Include="System.Reactive.Linq"> | ||
| <HintPath>..\ext\ios\System.Reactive.Linq.dll</HintPath> | ||
| </Reference> | ||
| <Reference Include="System.Reactive.PlatformServices"> | ||
| <HintPath>..\ext\ios\System.Reactive.PlatformServices.dll</HintPath> | ||
| </Reference> | ||
| <Reference Include="System.Runtime.Serialization" /> | ||
| <Reference Include="Xamarin.Mobile"> | ||
| <HintPath>..\ext\ios\Xamarin.Mobile.dll</HintPath> | ||
| </Reference> | ||
| </ItemGroup> | ||
| <ItemGroup> | ||
| <Folder Include="Resources\" /> | ||
| <Folder Include="Properties\" /> | ||
| </ItemGroup> | ||
| <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" /> | ||
| <ItemGroup> | ||
| </ItemGroup> | ||
| <ItemGroup> | ||
| <Compile Include="ServiceLocationRegistration.cs" /> | ||
| <Compile Include="Properties\AssemblyInfo.cs" /> | ||
| <Compile Include="Geolocation.cs" /> | ||
| <Compile Include="Interfaces.cs" /> | ||
| <Compile Include="SuspensionHost.cs" /> | ||
| <Compile Include="AutoSuspendAppDelegate.cs" /> | ||
| </ItemGroup> | ||
| <ItemGroup> | ||
| <ProjectReference Include="..\ReactiveUI\ReactiveUI_Monotouch.csproj"> | ||
| <Project>{9091337A-9E94-4DBD-801E-05E1FDA78FFC}</Project> | ||
| <Name>ReactiveUI_Monotouch</Name> | ||
| </ProjectReference> | ||
| <ProjectReference Include="..\ReactiveUI.Xaml\ReactiveUI.Xaml_Monotouch.csproj"> | ||
| <Project>{9891337A-9E94-4DBD-801E-05E1FDA78FFC}</Project> | ||
| <Name>ReactiveUI.Xaml_Monotouch</Name> | ||
| </ProjectReference> | ||
| <ProjectReference Include="..\ReactiveUI.Routing\ReactiveUI.Routing_Monotouch.csproj"> | ||
| <Project>{9091337B-9E94-4DBD-801E-05E1FDA78FFC}</Project> | ||
| <Name>ReactiveUI.Routing_Monotouch</Name> | ||
| </ProjectReference> | ||
| </ItemGroup> | ||
| </Project> |
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