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using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Reflection;
using Windows.ApplicationModel.Activation;
using Windows.Foundation.Metadata;
using Windows.UI.Core;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Media;
#if WINDOWS_UWP
using Xamarin.Forms.Platform.UWP;
#else
using Xamarin.Forms.Platform.WinRT;
#endif
namespace Xamarin.Forms
{
public static class Forms
{
const string LogFormat = "[{0}] {1}";
static ApplicationExecutionState s_state;
static bool s_isInitialized;
#if WINDOWS_UWP
public static void Init(IActivatedEventArgs launchActivatedEventArgs, IEnumerable<Assembly> rendererAssemblies = null)
#else
public static void Init(IActivatedEventArgs launchActivatedEventArgs)
#endif
{
if (s_isInitialized)
return;
var accent = (SolidColorBrush)Windows.UI.Xaml.Application.Current.Resources["SystemColorControlAccentBrush"];
Color.Accent = Color.FromRgba(accent.Color.R, accent.Color.G, accent.Color.B, accent.Color.A);
Log.Listeners.Add(new DelegateLogListener((c, m) => Debug.WriteLine(LogFormat, c, m)));
Windows.UI.Xaml.Application.Current.Resources.MergedDictionaries.Add(GetTabletResources());
Device.OS = TargetPlatform.Windows;
Device.Idiom = TargetIdiom.Tablet;
Device.PlatformServices = new WindowsPlatformServices(Window.Current.Dispatcher);
Device.Info = new WindowsDeviceInfo();
#if WINDOWS_UWP
switch (DetectPlatform())
{
case Windows.Foundation.Metadata.Platform.Windows:
Device.Idiom = TargetIdiom.Desktop;
break;
case Windows.Foundation.Metadata.Platform.WindowsPhone:
Device.Idiom = TargetIdiom.Phone;
break;
default:
Device.Idiom = TargetIdiom.Tablet;
break;
}
#endif
ExpressionSearch.Default = new WindowsExpressionSearch();
#if WINDOWS_UWP
Registrar.ExtraAssemblies = rendererAssemblies?.ToArray();
#endif
Registrar.RegisterAll(new[] { typeof(ExportRendererAttribute), typeof(ExportCellAttribute), typeof(ExportImageSourceHandlerAttribute) });
s_isInitialized = true;
s_state = launchActivatedEventArgs.PreviousExecutionState;
#if WINDOWS_UWP
SystemNavigationManager.GetForCurrentView().BackRequested += OnBackRequested;
#endif
}
static Windows.Foundation.Metadata.Platform DetectPlatform()
{
#if WINDOWS_UWP
bool isHardwareButtonsAPIPresent = ApiInformation.IsTypePresent("Windows.Phone.UI.Input.HardwareButtons");
if (isHardwareButtonsAPIPresent)
return Windows.Foundation.Metadata.Platform.WindowsPhone;
#endif
return Windows.Foundation.Metadata.Platform.Windows;
}
static Windows.UI.Xaml.ResourceDictionary GetTabletResources()
{
return new Windows.UI.Xaml.ResourceDictionary {
#if !WINDOWS_UWP
Source = new Uri("ms-appx:///Xamarin.Forms.Platform.WinRT.Tablet/TabletResources.xbf")
#else
Source = new Uri("ms-appx:///Xamarin.Forms.Platform.UAP/Resources.xbf")
#endif
};
}
#if WINDOWS_UWP
static void OnBackRequested(object sender, BackRequestedEventArgs e)
{
Application app = Application.Current;
if (app == null)
return;
Page page = app.MainPage;
if (page == null)
return;
var platform = page.Platform as Platform.UWP.Platform;
if (platform == null)
return;
e.Handled = platform.BackButtonPressed();
}
#endif
}
}
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