[WIP] Permission plugin

MvvmCross.Plugins.sln

@@ -305,6 +305,10 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MvvmCross.Plugins.Email.Win
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MvvmCross.Plugins.Email.WindowsUWP", "Email\MvvmCross.Plugins.Email.WindowsUWP\MvvmCross.Plugins.Email.WindowsUWP.csproj", "{645DE858-1C4C-4F7B-98A5-070EE1D331E6}"
 EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Permissions", "Permissions", "{8209CF8F-801C-4982-A398-A3EAF99D4BCC}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MvvmCross.Plugins.Permissions", "Permissions\Core\MvvmCross.Plugins.Permissions.csproj", "{B3B46E7E-CDA2-4297-8700-6E8EBBE3A841}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -2333,6 +2337,22 @@ Global
 		{645DE858-1C4C-4F7B-98A5-070EE1D331E6}.Release|x64.Build.0 = Release|x64
 		{645DE858-1C4C-4F7B-98A5-070EE1D331E6}.Release|x86.ActiveCfg = Release|x86
 		{645DE858-1C4C-4F7B-98A5-070EE1D331E6}.Release|x86.Build.0 = Release|x86
+		{B3B46E7E-CDA2-4297-8700-6E8EBBE3A841}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{B3B46E7E-CDA2-4297-8700-6E8EBBE3A841}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{B3B46E7E-CDA2-4297-8700-6E8EBBE3A841}.Debug|ARM.ActiveCfg = Debug|Any CPU
+		{B3B46E7E-CDA2-4297-8700-6E8EBBE3A841}.Debug|ARM.Build.0 = Debug|Any CPU
+		{B3B46E7E-CDA2-4297-8700-6E8EBBE3A841}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{B3B46E7E-CDA2-4297-8700-6E8EBBE3A841}.Debug|x64.Build.0 = Debug|Any CPU
+		{B3B46E7E-CDA2-4297-8700-6E8EBBE3A841}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{B3B46E7E-CDA2-4297-8700-6E8EBBE3A841}.Debug|x86.Build.0 = Debug|Any CPU
+		{B3B46E7E-CDA2-4297-8700-6E8EBBE3A841}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{B3B46E7E-CDA2-4297-8700-6E8EBBE3A841}.Release|Any CPU.Build.0 = Release|Any CPU
+		{B3B46E7E-CDA2-4297-8700-6E8EBBE3A841}.Release|ARM.ActiveCfg = Release|Any CPU
+		{B3B46E7E-CDA2-4297-8700-6E8EBBE3A841}.Release|ARM.Build.0 = Release|Any CPU
+		{B3B46E7E-CDA2-4297-8700-6E8EBBE3A841}.Release|x64.ActiveCfg = Release|Any CPU
+		{B3B46E7E-CDA2-4297-8700-6E8EBBE3A841}.Release|x64.Build.0 = Release|Any CPU
+		{B3B46E7E-CDA2-4297-8700-6E8EBBE3A841}.Release|x86.ActiveCfg = Release|Any CPU
+		{B3B46E7E-CDA2-4297-8700-6E8EBBE3A841}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -2464,5 +2484,6 @@ Global
 		{0B08507A-DA49-4069-B8CF-0FB0B7895B21} = {EB7A7EA9-995D-44EC-A4C9-7936BD6DF759}
 		{D381A63C-994E-48FB-A32E-B3667BFEFC84} = {83DC5338-32A2-47D1-974E-1F3ACC600A03}
 		{645DE858-1C4C-4F7B-98A5-070EE1D331E6} = {83DC5338-32A2-47D1-974E-1F3ACC600A03}
+		{B3B46E7E-CDA2-4297-8700-6E8EBBE3A841} = {8209CF8F-801C-4982-A398-A3EAF99D4BCC}
 	EndGlobalSection
 EndGlobal

Permissions/Core/IMvxPermissions.cs

@@ -0,0 +1,12 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+namespace MvvmCross.Plugins.Permissions
+{
+    public interface IMvxPermissions
+    {
+        Task<bool> ShouldShowRequestPermissionRationaleAsync(MvxPermission permission);
+        Task<MvxPermissionStatus> CheckPermissionStatusAsync(MvxPermission permission);
+        Task<Dictionary<MvxPermission, MvxPermissionStatus>> RequestPermissionsAsync(params MvxPermission[] permissions);
+    }
+}

Permissions/Core/MvvmCross.Plugins.Permissions.csproj

@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <MinimumVisualStudioVersion>10.0</MinimumVisualStudioVersion>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{B3B46E7E-CDA2-4297-8700-6E8EBBE3A841}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>MvvmCross.Plugins.Permissions</RootNamespace>
+    <AssemblyName>MvvmCross.Plugins.Permissions</AssemblyName>
+    <DefaultLanguage>en-US</DefaultLanguage>
+    <FileAlignment>512</FileAlignment>
+    <ProjectTypeGuids>{786C830F-07A1-408B-BD7F-6EE04809D6DB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
+    <TargetFrameworkProfile>Profile111</TargetFrameworkProfile>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>..\..\bin\Debug\Mvx\Portable\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>..\..\bin\Release\Mvx\Portable\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Compile Include="IMvxPermissions.cs" />
+    <Compile Include="MvxPermission.cs" />
+    <Compile Include="MvxPermissionExtensions.cs" />
+    <Compile Include="MvxPermissions.cs" />
+    <Compile Include="MvxPermissionStatus.cs" />
+    <Compile Include="PluginLoader.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <Reference Include="MvvmCross.Core, Version=4.0.0.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\MvvmCross.Core.4.1.0\lib\portable-net45+win+wpa81+wp80\MvvmCross.Core.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="MvvmCross.Platform, Version=4.0.0.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\MvvmCross.Platform.4.1.0\lib\portable-net45+win+wpa81+wp80\MvvmCross.Platform.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="Plugin.Permissions, Version=1.1.6.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\Plugin.Permissions.1.1.7\lib\portable-net45+wp8+wpa81+win8+MonoAndroid10+MonoTouch10+Xamarin.iOS10+UAP10\Plugin.Permissions.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="Plugin.Permissions.Abstractions, Version=1.1.6.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\Plugin.Permissions.1.1.7\lib\portable-net45+wp8+wpa81+win8+MonoAndroid10+MonoTouch10+Xamarin.iOS10+UAP10\Plugin.Permissions.Abstractions.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="packages.config" />
+  </ItemGroup>
+  <Import Project="$(MSBuildExtensionsPath32)\Microsoft\Portable\$(TargetFrameworkVersion)\Microsoft.Portable.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>

Permissions/Core/MvxPermission.cs

@@ -0,0 +1,18 @@
+namespace MvvmCross.Plugins.Permissions
+{
+    public enum MvxPermission
+    {
+        Unknown,
+        Calendar,
+        Camera,
+        Contacts,
+        Location,
+        Microphone,
+        Phone,
+        Photos,
+        Reminders,
+        Sensors,
+        Sms,
+        Storage
+    }
+}

Permissions/Core/MvxPermissionExtensions.cs

@@ -0,0 +1,103 @@
+using Plugin.Permissions.Abstractions;
+
+namespace MvvmCross.Plugins.Permissions
+{
+    public static class MvxPermissionExtensions
+    {
+        public static Permission ToPermission(this MvxPermission permission)
+        {
+            switch (permission)
+            {
+                case MvxPermission.Calendar:
+                    return Permission.Calendar;
+                case MvxPermission.Camera:
+                    return Permission.Camera;
+                case MvxPermission.Contacts:
+                    return Permission.Contacts;
+                case MvxPermission.Location:
+                    return Permission.Location;
+                case MvxPermission.Microphone:
+                    return Permission.Microphone;
+                case MvxPermission.Phone:
+                    return Permission.Phone;
+                case MvxPermission.Photos:
+                    return Permission.Photos;
+                case MvxPermission.Reminders:
+                    return Permission.Reminders;
+                case MvxPermission.Sensors:
+                    return Permission.Sensors;
+                case MvxPermission.Sms:
+                    return Permission.Sms;
+                case MvxPermission.Storage:
+                    return Permission.Storage;
+                default:
+                    return Permission.Unknown;
+            }
+        }
+
+        public static PermissionStatus ToPermissionStatus(this MvxPermissionStatus permissionStatus)
+        {
+            switch (permissionStatus)
+            {
+                case MvxPermissionStatus.Denied:
+                    return PermissionStatus.Denied;
+                case MvxPermissionStatus.Disabled:
+                    return PermissionStatus.Disabled;
+                case MvxPermissionStatus.Granted:
+                    return PermissionStatus.Granted;
+                case MvxPermissionStatus.Restricted:
+                    return PermissionStatus.Restricted;
+                default:
+                    return PermissionStatus.Unknown;
+            }
+        }
+
+        public static MvxPermission ToMvxPermission(this Permission permission)
+        {
+            switch (permission)
+            {
+                case Permission.Calendar:
+                    return MvxPermission.Calendar;
+                case Permission.Camera:
+                    return MvxPermission.Camera;
+                case Permission.Contacts:
+                    return MvxPermission.Contacts;
+                case Permission.Location:
+                    return MvxPermission.Location;
+                case Permission.Microphone:
+                    return MvxPermission.Microphone;
+                case Permission.Phone:
+                    return MvxPermission.Phone;
+                case Permission.Photos:
+                    return MvxPermission.Photos;
+                case Permission.Reminders:
+                    return MvxPermission.Reminders;
+                case Permission.Sensors:
+                    return MvxPermission.Sensors;
+                case Permission.Sms:
+                    return MvxPermission.Sms;
+                case Permission.Storage:
+                    return MvxPermission.Storage;
+                default:
+                    return MvxPermission.Unknown;
+            }
+        }
+
+        public static MvxPermissionStatus ToMvxPermissionStatus(this PermissionStatus permissionStatus)
+        {
+            switch (permissionStatus)
+            {
+                case PermissionStatus.Denied:
+                    return MvxPermissionStatus.Denied;
+                case PermissionStatus.Disabled:
+                    return MvxPermissionStatus.Disabled;
+                case PermissionStatus.Granted:
+                    return MvxPermissionStatus.Granted;
+                case PermissionStatus.Restricted:
+                    return MvxPermissionStatus.Restricted;
+                default:
+                    return MvxPermissionStatus.Unknown;
+            }
+        }
+    }
+}

Permissions/Core/MvxPermissionStatus.cs

@@ -0,0 +1,11 @@
+namespace MvvmCross.Plugins.Permissions
+{
+    public enum MvxPermissionStatus
+    {
+        Denied,
+        Disabled,
+        Granted,
+        Restricted,
+        Unknown
+    }
+}

Permissions/Core/MvxPermissions.cs

@@ -0,0 +1,29 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Plugin.Permissions;
+
+namespace MvvmCross.Plugins.Permissions
+{
+    public class MvxPermissions : IMvxPermissions
+    {
+        public Task<bool> ShouldShowRequestPermissionRationaleAsync(MvxPermission permission)
+        {
+            return CrossPermissions.Current.ShouldShowRequestPermissionRationaleAsync(permission.ToPermission());
+        }
+
+        public async Task<MvxPermissionStatus> CheckPermissionStatusAsync(MvxPermission permission)
+        {
+            var status = await CrossPermissions.Current.CheckPermissionStatusAsync(permission.ToPermission()).ConfigureAwait(false);
+            return status.ToMvxPermissionStatus();
+        }
+
+        public async Task<Dictionary<MvxPermission, MvxPermissionStatus>> RequestPermissionsAsync(params MvxPermission[] permissions)
+        {
+            var nativePermissions = permissions.Select(p => p.ToPermission()).ToArray();
+
+            var status = await CrossPermissions.Current.RequestPermissionsAsync(nativePermissions).ConfigureAwait(false);
+            return status.ToDictionary(k => k.Key.ToMvxPermission(), v => v.Value.ToMvxPermissionStatus());
+        }
+    }
+}

Permissions/Core/PluginLoader.cs

@@ -0,0 +1,29 @@
+// PluginLoader.cs
+// (c) Copyright Cirrious Ltd. http://www.cirrious.com
+// MvvmCross is licensed using Microsoft Public License (Ms-PL)
+// Contributions and inspirations noted in readme.md and license.txt
+
+using MvvmCross.Platform;
+using MvvmCross.Platform.Plugins;
+
+namespace MvvmCross.Plugins.Permissions
+{
+    public class PluginLoader
+        : IMvxPluginLoader
+    {
+        public static readonly PluginLoader Instance = new PluginLoader();
+
+        private bool _loaded;
+
+        public void EnsureLoaded()
+        {
+            if (_loaded)
+            {
+                return;
+            }
+
+            Mvx.RegisterSingleton<IMvxPermissions>(new MvxPermissions());
+            _loaded = true;
+        }
+    }
+}

Permissions/Core/Properties/AssemblyInfo.cs

@@ -0,0 +1,30 @@
+using System.Resources;
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("Core")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("Core")]
+[assembly: AssemblyCopyright("Copyright ©  2016")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+[assembly: NeutralResourcesLanguage("en")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers 
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

Permissions/Core/packages.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="MvvmCross.Core" version="4.1.0" targetFramework="portable45-net45+win8+wpa81" />
+  <package id="MvvmCross.Platform" version="4.1.0" targetFramework="portable45-net45+win8+wpa81" />
+  <package id="Plugin.Permissions" version="1.1.7" targetFramework="portable45-net45+win8+wpa81" />
+</packages>