Xamarin.Forms-Samples/XamarinConditionalXAML/packages/xcc.1.0.5/build/Xcc.targets

<!--
***********************************************************************************************
Xcc.targets

WARNING:  DO NOT MODIFY this file unless you are knowledgeable about MSBuild and have
          created a backup copy. 

Copyright (C) First Floor Software. All rights reserved.
***********************************************************************************************
-->

<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <UsingTask TaskName="PreprocessXaml" AssemblyFile="$(MSBuildThisFileDirectory)..\tools\Xcc.dll" />

  <Target Name="GenerateXaml" BeforeTargets="MarkupCompilePass1" AfterTargets="_PreXamlG">
    <!-- create collection for embedded xaml resources -->
    <CreateItem Include="@(EmbeddedResource)" Condition="'%(Extension)' == '.xaml'">
      <Output TaskParameter="Include" ItemName="EmbeddedXamlResource"/>
    </CreateItem>

    <PropertyGroup Label="Globals">
      <!-- support for .NET projects (used by default) -->
      <PreprocessorDefinitions>$(DefineConstants)</PreprocessorDefinitions>

      <!--Ensure atleast one constant is defined. If none are defined, the $(DefineConstants) property is empty.
      This can happen in Release builds without Trace defined for WPF projects and will error the build on the PreprocessXaml task.-->
      <PreprocessorDefinitions Condition="'$(PreprocessorDefinitions)' == ''">XCC</PreprocessorDefinitions>
      <PreprocessorDefinitions Condition="'$(PreprocessorDefinitions)' != ''">$(PreprocessorDefinitions);XCC</PreprocessorDefinitions>
      
      <!-- support for Visual C++ projects (will override the definition above as 'DefineConstants' and 'ClCompile.PreprocessorDefinitions' cannot be co-existant) -->
      <PreprocessorDefinitions Condition="%(ClCompile.PreprocessorDefinitions) != ''">%(ClCompile.PreprocessorDefinitions)</PreprocessorDefinitions>
    </PropertyGroup>

    <!-- ensure __ANDROID__ symbol is defined when targetting Android platform with .NET -->
    <PropertyGroup Condition="'$(DefineConstants)' != '' and '$(TargetFrameworkIdentifier)' == 'MonoAndroid'">
      <PreprocessorDefinitions Condition="'$(PreprocessorDefinitions)' == ''">__ANDROID__;$(DefineConstants)</PreprocessorDefinitions>

      <!-- Make sure changes to 'PreprocessorDefinitions' are preserved (could make future updates easier) -->
      <PreprocessorDefinitions Condition="'$(PreprocessorDefinitions)' != ''">__ANDROID__;$(PreprocessorDefinitions)</PreprocessorDefinitions>
    </PropertyGroup>

    <!-- preprocess xaml pages -->
    <PreprocessXaml ApplicationDefinitions="@(ApplicationDefinition)"
                    Pages="@(Page)"
                    EmbeddedXamlResources="@(EmbeddedXamlResource)"
                    DefinedSymbols="$(PreprocessorDefinitions)"
                    OutputPath="$(IntermediateOutputPath)preprocessedxaml\">
      <Output ItemName="NewApplicationDefinition" TaskParameter="NewApplicationDefinitions" />
      <Output ItemName="NewPage" TaskParameter="NewPages" />
      <Output ItemName="NewEmbeddedXamlResource" TaskParameter="NewEmbeddedXamlResources" />
      <Output ItemName="FileWrites" TaskParameter="GeneratedFiles" />
    </PreprocessXaml>
    <ItemGroup>
      <ApplicationDefinition Remove="@(ApplicationDefinition)" />
      <Page Remove="@(Page)" />
      <EmbeddedResource Remove="@(EmbeddedXamlResource)" />

      <ApplicationDefinition Include="@(NewApplicationDefinition)" />
      <Page Include="@(NewPage)" />
      <EmbeddedResource Include="@(NewEmbeddedXamlResource)" />
    </ItemGroup>
  </Target>
</Project>