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Influence HTML head from Blazor (#23833)
* Started on head manager * Working prototype. * Started on improved meta tag support. * Improved meta support and better thread safety. * Improved synchronization. * Added support for meta "property" attribute. * Updated exception message. * Added link element support. * Started on functional tests. * Added more functional tests. * Added E2E tests. * Simplified implementation. * Prerendering support. * Small documentation updates. * Made TagElement and TitleElement readonly. * Removed M.A.Components.Server dependency. * Minor fixes and updates. * Update PrerenderedHeadComponent.razor * Removed AddWebExtensions. * Applied CR feedback
1 parent 4813a15 commit b121a2f

23 files changed

+784
-8
lines changed

‎AspNetCore.sln

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Original file line numberDiff line numberDiff line change
@@ -1427,6 +1427,20 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.AspNetCore.Compon
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EndProject
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Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.AspNetCore.Components.Web.Extensions.Tests", "src\Components\Web.Extensions\test\Microsoft.AspNetCore.Components.Web.Extensions.Tests.csproj", "{157605CB-5170-4C1A-980F-4BAE42DB60DE}"
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EndProject
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Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "testassets", "testassets", "{2531F00A-54EB-4074-9C0B-9AF9FB3679DC}"
1431+
EndProject
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Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "BasicTestApp", "src\Components\test\testassets\BasicTestApp\BasicTestApp.csproj", "{85D67E40-4B11-48ED-8C43-34590A1FB9ED}"
1433+
EndProject
1434+
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "LazyTestContentPackage", "src\Components\test\testassets\LazyTestContentPackage\LazyTestContentPackage.csproj", "{C0EF53A5-5A94-4849-86B0-2297EA08D649}"
1435+
EndProject
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Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComponentsApp.App", "src\Components\test\testassets\ComponentsApp.App\ComponentsApp.App.csproj", "{4FDD820F-8397-41B7-956E-F257DD044BD8}"
1437+
EndProject
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Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComponentsApp.Server", "src\Components\test\testassets\ComponentsApp.Server\ComponentsApp.Server.csproj", "{CA7C7A53-446F-453A-A57B-78BB1443B8A8}"
1439+
EndProject
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Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "TestContentPackage", "src\Components\test\testassets\TestContentPackage\TestContentPackage.csproj", "{B32C5882-2313-40D0-A003-2FF33724CFE6}"
1441+
EndProject
1442+
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Components.TestServer", "src\Components\test\testassets\TestServer\Components.TestServer.csproj", "{26F88A06-319C-43F3-9FD9-8BC2D29F8C00}"
1443+
EndProject
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Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Sdk", "Sdk", "{FED4267E-E5E4-49C5-98DB-8B3F203596EE}"
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Microsoft.NET.Sdk.BlazorWebAssembly", "src\Components\WebAssembly\Sdk\src\Microsoft.NET.Sdk.BlazorWebAssembly.csproj", "{6B2734BF-C61D-4889-ABBF-456A4075D59B}"
@@ -6739,6 +6753,78 @@ Global
67396753
{157605CB-5170-4C1A-980F-4BAE42DB60DE}.Release|x64.Build.0 = Release|Any CPU
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{157605CB-5170-4C1A-980F-4BAE42DB60DE}.Release|x86.ActiveCfg = Release|Any CPU
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{157605CB-5170-4C1A-980F-4BAE42DB60DE}.Release|x86.Build.0 = Release|Any CPU
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{85D67E40-4B11-48ED-8C43-34590A1FB9ED}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{85D67E40-4B11-48ED-8C43-34590A1FB9ED}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{85D67E40-4B11-48ED-8C43-34590A1FB9ED}.Debug|x64.ActiveCfg = Debug|Any CPU
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{85D67E40-4B11-48ED-8C43-34590A1FB9ED}.Debug|x64.Build.0 = Debug|Any CPU
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{85D67E40-4B11-48ED-8C43-34590A1FB9ED}.Debug|x86.ActiveCfg = Debug|Any CPU
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{85D67E40-4B11-48ED-8C43-34590A1FB9ED}.Debug|x86.Build.0 = Debug|Any CPU
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{85D67E40-4B11-48ED-8C43-34590A1FB9ED}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{85D67E40-4B11-48ED-8C43-34590A1FB9ED}.Release|x64.ActiveCfg = Release|Any CPU
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{85D67E40-4B11-48ED-8C43-34590A1FB9ED}.Release|x64.Build.0 = Release|Any CPU
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{85D67E40-4B11-48ED-8C43-34590A1FB9ED}.Release|x86.Build.0 = Release|Any CPU
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{C0EF53A5-5A94-4849-86B0-2297EA08D649}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{C0EF53A5-5A94-4849-86B0-2297EA08D649}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{C0EF53A5-5A94-4849-86B0-2297EA08D649}.Debug|x64.ActiveCfg = Debug|Any CPU
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{C0EF53A5-5A94-4849-86B0-2297EA08D649}.Debug|x64.Build.0 = Debug|Any CPU
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{C0EF53A5-5A94-4849-86B0-2297EA08D649}.Debug|x86.ActiveCfg = Debug|Any CPU
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{C0EF53A5-5A94-4849-86B0-2297EA08D649}.Debug|x86.Build.0 = Debug|Any CPU
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{C0EF53A5-5A94-4849-86B0-2297EA08D649}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{C0EF53A5-5A94-4849-86B0-2297EA08D649}.Release|Any CPU.Build.0 = Release|Any CPU
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{C0EF53A5-5A94-4849-86B0-2297EA08D649}.Release|x64.ActiveCfg = Release|Any CPU
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{C0EF53A5-5A94-4849-86B0-2297EA08D649}.Release|x64.Build.0 = Release|Any CPU
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{C0EF53A5-5A94-4849-86B0-2297EA08D649}.Release|x86.ActiveCfg = Release|Any CPU
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{C0EF53A5-5A94-4849-86B0-2297EA08D649}.Release|x86.Build.0 = Release|Any CPU
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{4FDD820F-8397-41B7-956E-F257DD044BD8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{4FDD820F-8397-41B7-956E-F257DD044BD8}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{4FDD820F-8397-41B7-956E-F257DD044BD8}.Debug|x64.Build.0 = Debug|Any CPU
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{4FDD820F-8397-41B7-956E-F257DD044BD8}.Debug|x86.ActiveCfg = Debug|Any CPU
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{4FDD820F-8397-41B7-956E-F257DD044BD8}.Debug|x86.Build.0 = Debug|Any CPU
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{4FDD820F-8397-41B7-956E-F257DD044BD8}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{4FDD820F-8397-41B7-956E-F257DD044BD8}.Release|Any CPU.Build.0 = Release|Any CPU
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{4FDD820F-8397-41B7-956E-F257DD044BD8}.Release|x64.ActiveCfg = Release|Any CPU
6789+
{4FDD820F-8397-41B7-956E-F257DD044BD8}.Release|x64.Build.0 = Release|Any CPU
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{4FDD820F-8397-41B7-956E-F257DD044BD8}.Release|x86.ActiveCfg = Release|Any CPU
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{4FDD820F-8397-41B7-956E-F257DD044BD8}.Release|x86.Build.0 = Release|Any CPU
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{CA7C7A53-446F-453A-A57B-78BB1443B8A8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{CA7C7A53-446F-453A-A57B-78BB1443B8A8}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{CA7C7A53-446F-453A-A57B-78BB1443B8A8}.Debug|x64.ActiveCfg = Debug|Any CPU
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{CA7C7A53-446F-453A-A57B-78BB1443B8A8}.Debug|x64.Build.0 = Debug|Any CPU
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{CA7C7A53-446F-453A-A57B-78BB1443B8A8}.Debug|x86.ActiveCfg = Debug|Any CPU
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{CA7C7A53-446F-453A-A57B-78BB1443B8A8}.Debug|x86.Build.0 = Debug|Any CPU
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{CA7C7A53-446F-453A-A57B-78BB1443B8A8}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{CA7C7A53-446F-453A-A57B-78BB1443B8A8}.Release|Any CPU.Build.0 = Release|Any CPU
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{CA7C7A53-446F-453A-A57B-78BB1443B8A8}.Release|x64.ActiveCfg = Release|Any CPU
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{CA7C7A53-446F-453A-A57B-78BB1443B8A8}.Release|x64.Build.0 = Release|Any CPU
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{CA7C7A53-446F-453A-A57B-78BB1443B8A8}.Release|x86.ActiveCfg = Release|Any CPU
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{CA7C7A53-446F-453A-A57B-78BB1443B8A8}.Release|x86.Build.0 = Release|Any CPU
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{B32C5882-2313-40D0-A003-2FF33724CFE6}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{B32C5882-2313-40D0-A003-2FF33724CFE6}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{B32C5882-2313-40D0-A003-2FF33724CFE6}.Debug|x64.ActiveCfg = Debug|Any CPU
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{B32C5882-2313-40D0-A003-2FF33724CFE6}.Debug|x64.Build.0 = Debug|Any CPU
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{B32C5882-2313-40D0-A003-2FF33724CFE6}.Debug|x86.ActiveCfg = Debug|Any CPU
6809+
{B32C5882-2313-40D0-A003-2FF33724CFE6}.Debug|x86.Build.0 = Debug|Any CPU
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{B32C5882-2313-40D0-A003-2FF33724CFE6}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{B32C5882-2313-40D0-A003-2FF33724CFE6}.Release|Any CPU.Build.0 = Release|Any CPU
6812+
{B32C5882-2313-40D0-A003-2FF33724CFE6}.Release|x64.ActiveCfg = Release|Any CPU
6813+
{B32C5882-2313-40D0-A003-2FF33724CFE6}.Release|x64.Build.0 = Release|Any CPU
6814+
{B32C5882-2313-40D0-A003-2FF33724CFE6}.Release|x86.ActiveCfg = Release|Any CPU
6815+
{B32C5882-2313-40D0-A003-2FF33724CFE6}.Release|x86.Build.0 = Release|Any CPU
6816+
{26F88A06-319C-43F3-9FD9-8BC2D29F8C00}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{26F88A06-319C-43F3-9FD9-8BC2D29F8C00}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{26F88A06-319C-43F3-9FD9-8BC2D29F8C00}.Debug|x64.ActiveCfg = Debug|Any CPU
6819+
{26F88A06-319C-43F3-9FD9-8BC2D29F8C00}.Debug|x64.Build.0 = Debug|Any CPU
6820+
{26F88A06-319C-43F3-9FD9-8BC2D29F8C00}.Debug|x86.ActiveCfg = Debug|Any CPU
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{26F88A06-319C-43F3-9FD9-8BC2D29F8C00}.Debug|x86.Build.0 = Debug|Any CPU
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{26F88A06-319C-43F3-9FD9-8BC2D29F8C00}.Release|Any CPU.ActiveCfg = Release|Any CPU
6823+
{26F88A06-319C-43F3-9FD9-8BC2D29F8C00}.Release|Any CPU.Build.0 = Release|Any CPU
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{26F88A06-319C-43F3-9FD9-8BC2D29F8C00}.Release|x64.ActiveCfg = Release|Any CPU
6825+
{26F88A06-319C-43F3-9FD9-8BC2D29F8C00}.Release|x64.Build.0 = Release|Any CPU
6826+
{26F88A06-319C-43F3-9FD9-8BC2D29F8C00}.Release|x86.ActiveCfg = Release|Any CPU
6827+
{26F88A06-319C-43F3-9FD9-8BC2D29F8C00}.Release|x86.Build.0 = Release|Any CPU
67426828
{6B2734BF-C61D-4889-ABBF-456A4075D59B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
67436829
{6B2734BF-C61D-4889-ABBF-456A4075D59B}.Debug|Any CPU.Build.0 = Debug|Any CPU
67446830
{6B2734BF-C61D-4889-ABBF-456A4075D59B}.Debug|x64.ActiveCfg = Debug|Any CPU
@@ -7502,6 +7588,13 @@ Global
75027588
{F71FE795-9923-461B-9809-BB1821A276D0} = {60D51C98-2CC0-40DF-B338-44154EFEE2FF}
75037589
{8294A74F-7DAA-4B69-BC56-7634D93C9693} = {F71FE795-9923-461B-9809-BB1821A276D0}
75047590
{157605CB-5170-4C1A-980F-4BAE42DB60DE} = {F71FE795-9923-461B-9809-BB1821A276D0}
7591+
{2531F00A-54EB-4074-9C0B-9AF9FB3679DC} = {0508E463-0269-40C9-B5C2-3B600FB2A28B}
7592+
{85D67E40-4B11-48ED-8C43-34590A1FB9ED} = {2531F00A-54EB-4074-9C0B-9AF9FB3679DC}
7593+
{C0EF53A5-5A94-4849-86B0-2297EA08D649} = {2531F00A-54EB-4074-9C0B-9AF9FB3679DC}
7594+
{4FDD820F-8397-41B7-956E-F257DD044BD8} = {2531F00A-54EB-4074-9C0B-9AF9FB3679DC}
7595+
{CA7C7A53-446F-453A-A57B-78BB1443B8A8} = {2531F00A-54EB-4074-9C0B-9AF9FB3679DC}
7596+
{B32C5882-2313-40D0-A003-2FF33724CFE6} = {2531F00A-54EB-4074-9C0B-9AF9FB3679DC}
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{26F88A06-319C-43F3-9FD9-8BC2D29F8C00} = {2531F00A-54EB-4074-9C0B-9AF9FB3679DC}
75057598
{FED4267E-E5E4-49C5-98DB-8B3F203596EE} = {562D5067-8CD8-4F19-BCBB-873204932C61}
75067599
{6B2734BF-C61D-4889-ABBF-456A4075D59B} = {FED4267E-E5E4-49C5-98DB-8B3F203596EE}
75077600
{83371889-9A3E-4D16-AE77-EB4F83BC6374} = {FED4267E-E5E4-49C5-98DB-8B3F203596EE}

‎src/Components/Web.Extensions/src/HeadManagement/HeadManagementJSRuntimeExtensions.cs

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// Copyright (c) .NET Foundation. All rights reserved.
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// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
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using System.Threading.Tasks;
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using Microsoft.JSInterop;
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namespace Microsoft.AspNetCore.Components.Web.Extensions.Head
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{
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internal static class HeadManagementJSRuntimeExtensions
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{
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private const string JsFunctionsPrefix = "_blazorHeadManager";
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public static ValueTask SetTitleAsync(this IJSRuntime jsRuntime, string title)
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{
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return jsRuntime.InvokeVoidAsync($"{JsFunctionsPrefix}.setTitle", title);
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}
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public static ValueTask AddOrUpdateHeadTagAsync(this IJSRuntime jsRuntime, TagElement tag, string id)
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{
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return jsRuntime.InvokeVoidAsync($"{JsFunctionsPrefix}.addOrUpdateHeadTag", tag, id);
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}
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public static ValueTask RemoveHeadTagAsync(this IJSRuntime jsRuntime, string id)
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{
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return jsRuntime.InvokeVoidAsync($"{JsFunctionsPrefix}.removeHeadTag", id);
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}
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}
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}

‎src/Components/Web.Extensions/src/HeadManagement/HeadTagBase.cs

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// Copyright (c) .NET Foundation. All rights reserved.
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// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
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using System;
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using System.Collections.Generic;
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using System.Text.Json;
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using System.Threading.Tasks;
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using Microsoft.AspNetCore.Components.Rendering;
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using Microsoft.JSInterop;
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namespace Microsoft.AspNetCore.Components.Web.Extensions.Head
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{
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/// <summary>
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/// Serves as a base for components that represent tags in the HTML head.
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/// </summary>
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public abstract class HeadTagBase : ComponentBase, IDisposable
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{
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private readonly string _id = Guid.NewGuid().ToString("N");
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private TagElement _tagElement;
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private bool _hasRendered;
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[Inject]
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private IJSRuntime JSRuntime { get; set; } = default!;
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/// <summary>
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/// Gets or sets a collection of additional attributes that will be applied to the meta element.
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/// </summary>
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[Parameter(CaptureUnmatchedValues = true)]
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public IReadOnlyDictionary<string, object>? Attributes { get; set; }
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/// <summary>
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/// Gets the name of the tag being represented.
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/// </summary>
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protected abstract string TagName { get; }
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/// <inheritdoc />
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protected override void OnParametersSet()
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{
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_tagElement = new TagElement(TagName, Attributes);
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}
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/// <inheritdoc />
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protected override async Task OnAfterRenderAsync(bool firstRender)
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{
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_hasRendered = true;
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await JSRuntime.AddOrUpdateHeadTagAsync(_tagElement, _id);
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}
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/// <inheritdoc />
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protected override void BuildRenderTree(RenderTreeBuilder builder)
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{
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builder.AddMarkupContent(0, $"<!--Head:{JsonSerializer.Serialize(_tagElement, JsonSerializerOptionsProvider.Options)}-->");
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}
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/// <inheritdoc />
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public void Dispose()
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{
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if (_hasRendered)
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{
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_ = JSRuntime.RemoveHeadTagAsync(_id);
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}
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}
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}
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}

‎src/Components/Web.Extensions/src/HeadManagement/Link.cs

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// Copyright (c) .NET Foundation. All rights reserved.
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// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
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namespace Microsoft.AspNetCore.Components.Web.Extensions.Head
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{
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/// <summary>
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/// A component that adds a link tag to the HTML head.
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/// </summary>
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public sealed class Link : HeadTagBase
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{
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/// <inheritdoc />
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protected override string TagName => "link";
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}
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}

‎src/Components/Web.Extensions/src/HeadManagement/Meta.cs

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@@ -0,0 +1,14 @@
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// Copyright (c) .NET Foundation. All rights reserved.
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// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
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namespace Microsoft.AspNetCore.Components.Web.Extensions.Head
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{
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/// <summary>
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/// A component that adds a meta tag to the HTML head.
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/// </summary>
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public sealed class Meta : HeadTagBase
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{
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/// <inheritdoc />
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protected override string TagName => "meta";
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}
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}

‎src/Components/Web.Extensions/src/HeadManagement/TagElement.cs

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// Copyright (c) .NET Foundation. All rights reserved.
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// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
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using System.Collections.Generic;
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namespace Microsoft.AspNetCore.Components.Web.Extensions.Head
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{
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internal readonly struct TagElement
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{
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public string Type => "tag";
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public string TagName { get; }
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public IReadOnlyDictionary<string, object>? Attributes { get; }
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public TagElement(string tagName, IReadOnlyDictionary<string, object>? attributes)
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{
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TagName = tagName;
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Attributes = attributes;
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}
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}
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}

‎src/Components/Web.Extensions/src/HeadManagement/Title.cs

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@@ -0,0 +1,37 @@
1+
// Copyright (c) .NET Foundation. All rights reserved.
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// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
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using System.Text.Json;
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using System.Threading.Tasks;
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using Microsoft.AspNetCore.Components.Rendering;
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using Microsoft.JSInterop;
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namespace Microsoft.AspNetCore.Components.Web.Extensions.Head
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{
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/// <summary>
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/// A component that changes the title of the document.
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/// </summary>
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public sealed class Title : ComponentBase
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{
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[Inject]
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private IJSRuntime JSRuntime { get; set; } = default!;
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/// <summary>
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/// Gets or sets the value to use as the document's title.
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/// </summary>
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[Parameter]
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public string Value { get; set; } = string.Empty;
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/// <inheritdoc />
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protected override async Task OnAfterRenderAsync(bool firstRender)
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{
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await JSRuntime.SetTitleAsync(Value);
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}
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/// <inheritdoc />
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protected override void BuildRenderTree(RenderTreeBuilder builder)
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{
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builder.AddMarkupContent(0, $"<!--Head:{JsonSerializer.Serialize(new TitleElement(Value), JsonSerializerOptionsProvider.Options)}-->");
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}
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}
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}

‎src/Components/Web.Extensions/src/HeadManagement/TitleElement.cs

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// Copyright (c) .NET Foundation. All rights reserved.
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// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
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namespace Microsoft.AspNetCore.Components.Web.Extensions.Head
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{
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internal readonly struct TitleElement
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{
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public string Type => "title";
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public string Title { get; }
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public TitleElement(string title)
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{
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Title = title;
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}
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}
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}

‎src/Components/Web.Extensions/src/Microsoft.AspNetCore.Components.Web.Extensions.csproj

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<Project Sdk="Microsoft.NET.Sdk">
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<Project Sdk="Microsoft.NET.Sdk.Razor">
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<PropertyGroup>
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<TargetFramework>$(DefaultNetCoreTargetFramework)</TargetFramework>
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</PropertyGroup>
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<ItemGroup>
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<Reference Include="Microsoft.AspNetCore.Components" />
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<Reference Include="Microsoft.AspNetCore.DataProtection" />
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<Reference Include="Microsoft.JSInterop" />
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</ItemGroup>

‎src/Components/Web.Extensions/src/Properties/AssemblyInfo.cs

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using System.Runtime.CompilerServices;
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[assembly: InternalsVisibleTo("Microsoft.AspNetCore.Components.Web.Extensions.Tests, PublicKey=0024000004800000940000000602000000240000525341310004000001000100f33a29044fa9d740c9b3213a93e57c84b472c84e0b8a0e1ae48e67a9f8f6de9d5f7f3d52ac23e48ac51801f1dc950abe901da34d2a9e3baadb141a17c77ef3c565dd5ee5054b91cf63bb3c6ab83f72ab3aafe93d0fc3c2348b764fafb0b1c0733de51459aeab46580384bf9d74c4e28164b7cde247f891ba07891c9d872ad2bb")]

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