From 1dd6e993401042e318f43a4240804e731cde520e Mon Sep 17 00:00:00 2001
From: Mike Griese <migrie@microsoft.com>
Date: Mon, 18 Jul 2022 16:57:00 -0500
Subject: [PATCH] prototype

---
 scratch/ScratchIslandApp/SampleApp/MyPage.cpp | 77 ++++++++++++++++++-
 .../ScratchIslandApp/SampleApp/MyPage.xaml    | 29 +++----
 .../SampleApp/dll/SampleApp.vcxproj           |  7 ++
 scratch/ScratchIslandApp/SampleApp/pch.h      |  4 +
 4 files changed, 96 insertions(+), 21 deletions(-)

diff --git a/scratch/ScratchIslandApp/SampleApp/MyPage.cpp b/scratch/ScratchIslandApp/SampleApp/MyPage.cpp
index b230f573fb0..9c0e2b76053 100644
--- a/scratch/ScratchIslandApp/SampleApp/MyPage.cpp
+++ b/scratch/ScratchIslandApp/SampleApp/MyPage.cpp
@@ -8,7 +8,10 @@
 #include "MyPage.g.cpp"
 #include "..\..\..\src\cascadia\UnitTests_Control\MockControlSettings.h"
 #include "..\..\..\src\types\inc\utils.hpp"
-
+#include <Shlobj.h>
+#include <Shlobj_core.h>
+#include <wincodec.h>
+#include <Windows.Graphics.Imaging.Interop.h>
 using namespace std::chrono_literals;
 using namespace winrt::Microsoft::Terminal;
 
@@ -19,6 +22,9 @@ namespace winrt
     using IInspectable = Windows::Foundation::IInspectable;
 }
 
+using namespace winrt::Windows::Graphics::Imaging;
+using namespace winrt::Windows::Storage::Streams;
+
 namespace winrt::SampleApp::implementation
 {
     MyPage::MyPage()
@@ -30,10 +36,79 @@ namespace winrt::SampleApp::implementation
     {
     }
 
+    winrt::Windows::Graphics::Imaging::SoftwareBitmap MyConvertToSoftwareBitmap(HICON hicon,
+                                                                                winrt::Windows::Graphics::Imaging::BitmapPixelFormat pixelFormat,
+                                                                                winrt::Windows::Graphics::Imaging::BitmapAlphaMode alphaMode,
+                                                                                IWICImagingFactory* imagingFactory)
+    {
+        // Load the icon into an IWICBitmap
+        wil::com_ptr<IWICBitmap> iconBitmap;
+        THROW_IF_FAILED(imagingFactory->CreateBitmapFromHICON(hicon, iconBitmap.put()));
+
+        // Put the IWICBitmap into a SoftwareBitmap. This may fail if WICBitmap's format is not supported by
+        // SoftwareBitmap. CreateBitmapFromHICON always creates RGBA8 so we're ok.
+        auto softwareBitmap = winrt::capture<winrt::Windows::Graphics::Imaging::SoftwareBitmap>(
+            winrt::create_instance<ISoftwareBitmapNativeFactory>(CLSID_SoftwareBitmapNativeFactory),
+            &ISoftwareBitmapNativeFactory::CreateFromWICBitmap,
+            iconBitmap.get(),
+            false);
+
+        // Convert the pixel format and alpha mode if necessary
+        if (softwareBitmap.BitmapPixelFormat() != pixelFormat || softwareBitmap.BitmapAlphaMode() != alphaMode)
+        {
+            softwareBitmap = winrt::Windows::Graphics::Imaging::SoftwareBitmap::Convert(softwareBitmap, pixelFormat, alphaMode);
+        }
+
+        return softwareBitmap;
+    }
+
+    winrt::Windows::Graphics::Imaging::SoftwareBitmap MyGetBitmapFromIconFileAsync(const winrt::hstring& iconPath,
+                                                                                   int32_t iconIndex,
+                                                                                   uint32_t iconSize)
+    {
+        wil::unique_hicon hicon;
+        LOG_IF_FAILED(SHDefExtractIcon(iconPath.c_str(), iconIndex, 0, &hicon, nullptr, iconSize));
+
+        if (!hicon)
+        {
+            return nullptr;
+        }
+
+        wil::com_ptr<IWICImagingFactory> wicImagingFactory;
+        THROW_IF_FAILED(CoCreateInstance(CLSID_WICImagingFactory, nullptr, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&wicImagingFactory)));
+
+        return MyConvertToSoftwareBitmap(hicon.get(), BitmapPixelFormat::Bgra8, BitmapAlphaMode::Premultiplied, wicImagingFactory.get());
+    }
+
     winrt::fire_and_forget MyPage::CreateClicked(const IInspectable& sender,
                                                  const WUX::Input::TappedRoutedEventArgs& eventArgs)
     {
+        // Try:
+        // * c:\Windows\System32\SHELL32.dll, 210
+        // * c:\Windows\System32\notepad.exe, 0
+        // * C:\Program Files\PowerShell\6-preview\pwsh.exe, 0 (this doesn't exist for me)
+        // * C:\Program Files\PowerShell\7\pwsh.exe, 0
+        auto text{ GuidInput().Text() };
+        auto index{ static_cast<int>(IconIndex().Value()) };
+
         co_await winrt::resume_background();
+        auto swBitmap{ MyGetBitmapFromIconFileAsync(text, index, 32) };
+        if (swBitmap == nullptr)
+        {
+            co_return;
+        }
+        co_await winrt::resume_foreground(Dispatcher());
+        winrt::Windows::UI::Xaml::Media::Imaging::SoftwareBitmapSource bitmapSource{};
+        co_await bitmapSource.SetBitmapAsync(swBitmap);
+        co_await winrt::resume_foreground(Dispatcher());
+
+        winrt::Microsoft::UI::Xaml::Controls::ImageIconSource imageIconSource{};
+        imageIconSource.ImageSource(bitmapSource);
+        winrt::Microsoft::UI::Xaml::Controls::ImageIcon icon{};
+        icon.Source(bitmapSource);
+        icon.Width(32);
+        icon.Height(32);
+        InProcContent().Children().Append(icon);
     }
 
     void MyPage::CloseClicked(const IInspectable& /*sender*/,
diff --git a/scratch/ScratchIslandApp/SampleApp/MyPage.xaml b/scratch/ScratchIslandApp/SampleApp/MyPage.xaml
index 033651fae76..cb87b5fe6d4 100644
--- a/scratch/ScratchIslandApp/SampleApp/MyPage.xaml
+++ b/scratch/ScratchIslandApp/SampleApp/MyPage.xaml
@@ -22,24 +22,12 @@
         <StackPanel Orientation="Horizontal">
             <TextBox x:Name="GuidInput"
                      Width="400"
-                     PlaceholderText="{}{guid here}" />
+                     PlaceholderText="path here" />
+            <mux:NumberBox x:Name="IconIndex" />
             <Button x:Name="CreateOutOfProcControl"
-                    Grid.Row="0"
                     Tapped="CreateClicked">
                 Create
             </Button>
-            <Button x:Name="CloseOutOfProcControl"
-                    Grid.Row="0"
-                    Margin="4,0,0,0"
-                    Tapped="CloseClicked">
-                Close
-            </Button>
-            <Button x:Name="KillOutOfProcControl"
-                    Grid.Row="0"
-                    Margin="4,0,0,0"
-                    Tapped="KillClicked">
-                Kill
-            </Button>
 
         </StackPanel>
 
@@ -53,12 +41,13 @@
                 <ColumnDefinition Width="*" />
             </Grid.ColumnDefinitions>
 
-            <Grid x:Name="InProcContent"
-                  Grid.Column="0"
-                  Padding="16"
-                  HorizontalAlignment="Stretch"
-                  VerticalAlignment="Stretch"
-                  Background="#ff0000" />
+            <StackPanel x:Name="InProcContent"
+                        Grid.Column="0"
+                        Padding="16"
+                        HorizontalAlignment="Stretch"
+                        VerticalAlignment="Stretch"
+                        Background="#ff0000"
+                        Orientation="Vertical" />
 
             <Grid Grid.Column="1"
                   HorizontalAlignment="Stretch"
diff --git a/scratch/ScratchIslandApp/SampleApp/dll/SampleApp.vcxproj b/scratch/ScratchIslandApp/SampleApp/dll/SampleApp.vcxproj
index c2f037d25cc..22b3b41f097 100644
--- a/scratch/ScratchIslandApp/SampleApp/dll/SampleApp.vcxproj
+++ b/scratch/ScratchIslandApp/SampleApp/dll/SampleApp.vcxproj
@@ -83,6 +83,13 @@
     </Reference>
   </ItemGroup>
 
+  <!-- ====================== Compiler & Linker Flags ===================== -->
+
+  <ItemDefinitionGroup>
+    <Link>
+      <AdditionalDependencies>$(OpenConsoleCommonOutDir)\ConTypes.lib;WindowsApp.lib;shell32.lib;user32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+  </ItemDefinitionGroup>
 
   <Import Project="$(OpenConsoleDir)packages\Microsoft.UI.Xaml.2.7.1\build\native\Microsoft.UI.Xaml.targets" Condition="Exists('$(OpenConsoleDir)packages\Microsoft.UI.Xaml.2.7.1\build\native\Microsoft.UI.Xaml.targets')" />
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
diff --git a/scratch/ScratchIslandApp/SampleApp/pch.h b/scratch/ScratchIslandApp/SampleApp/pch.h
index ba01e45e453..347389b44a1 100644
--- a/scratch/ScratchIslandApp/SampleApp/pch.h
+++ b/scratch/ScratchIslandApp/SampleApp/pch.h
@@ -33,6 +33,8 @@
 #include <winrt/Windows.Foundation.Collections.h>
 #include <winrt/Windows.Foundation.Metadata.h>
 #include <winrt/Windows.Graphics.Display.h>
+#include <winrt/Windows.Graphics.Imaging.h>
+// #include <winrt/Windows.Graphics.Imaging.Interop.h>
 #include <winrt/windows.ui.core.h>
 #include <winrt/Windows.ui.input.h>
 #include <winrt/Windows.UI.Text.h>
@@ -41,10 +43,12 @@
 #include <winrt/Windows.UI.Xaml.Data.h>
 #include <winrt/Windows.ui.xaml.media.h>
 #include <winrt/Windows.UI.Xaml.Media.Animation.h>
+#include <winrt/Windows.UI.Xaml.Media.Imaging.h>
 #include <winrt/Windows.ui.xaml.input.h>
 #include <winrt/Windows.UI.Xaml.Hosting.h>
 #include "winrt/Windows.UI.Xaml.Markup.h"
 #include "winrt/Windows.UI.ViewManagement.h"
+#include "winrt/Windows.Storage.Streams.h"
 
 #include <winrt/Microsoft.Toolkit.Win32.UI.XamlHost.h>
 #include <winrt/Microsoft.UI.Xaml.Controls.h>