v4, beta4 (#19)

- Update with header/attribute changes between alpha8 and beta4
- Add support for htmax script, attributes, headers, and extension config

Reviewed-on: #19

.github/workflows/ci.yml

@@ -2,9 +2,10 @@ name: CI
 
 on:
   push:
-    branches: [ "main" ]
+    branches: [ "main", "htmx-version-2" ]
   pull_request:
     branches: [ "main" ]
+  workflow_dispatch:
 
 jobs:
   build-and-test:
@@ -16,9 +17,9 @@ jobs:
         dotnet-version: [ "6.0", "7.0", "8.0" ]
     
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Setup .NET ${{ matrix.dotnet-version }}.x
-      uses: actions/setup-dotnet@v3
+      uses: actions/setup-dotnet@v4
       with:
         dotnet-version: ${{ matrix.dotnet-version }}.x
     - name: Restore dependencies
@@ -31,11 +32,11 @@ jobs:
     runs-on: ubuntu-latest
     needs: build-and-test
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Setup .NET
-      uses: actions/setup-dotnet@v3
+      uses: actions/setup-dotnet@v4
       with:
-        dotnet-version: "7.0"
+        dotnet-version: "8.0"
     - name: Package Common library
       run: dotnet pack src/Common/Giraffe.Htmx.Common.fsproj -c Release
     - name: Move Common package
@@ -49,7 +50,7 @@ jobs:
     - name: Move View Engine package
       run: cp src/ViewEngine.Htmx/bin/Release/Giraffe.ViewEngine.Htmx.*.nupkg .
     - name: Save Packages
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: packages
         path: |

.gitignore

@@ -6,3 +6,6 @@
 .idea
 *.user
 .vscode
+src/*.nupkg
+src/tests*.txt
+

README.md

@@ -14,6 +14,8 @@ htmx uses attributes and HTTP headers to attain its interactivity; the libraries
 |---|---|
 |[![Nuget](https://img.shields.io/nuget/v/Giraffe.Htmx?style=plastic)](https://www.nuget.org/packages/Giraffe.Htmx/)|[![Nuget](https://img.shields.io/nuget/v/Giraffe.ViewEngine.Htmx?style=plastic)](https://www.nuget.org/packages/Giraffe.ViewEngine.Htmx/)|
 
+Both of these packages will also install `Giraffe.Htmx.Common`, which has some common definitions and provides a local-to-your-project version of the htmx JavaScript _(as of v2.0.8)_.
+
 ## Server Side (`Giraffe.Htmx`)
 
 In addition to the regular HTTP request payloads, htmx sets [one or more headers](https://htmx.org/docs/#request_headers) along with the request. Once `Giraffe.Htmx` is opened, these are available as properties on `HttpContext.Request.Headers`. These consist of the header name, translated to a .NET name (ex. `HX-Current-URL` becomes `HxCurrentUrl`), and a strongly-typed property based on the expected value of that header. Additionally, they are all exposed as `Option`s, as they may or may not be present for any given request.
@@ -21,19 +23,20 @@ In addition to the regular HTTP request payloads, htmx sets [one or more headers
 A server may want to respond to a request that originated from htmx differently than a regular request. One way htmx can provide the same feel as a Single Page Application (SPA) is by swapping out the `body` content (or an element within it) instead of reloading the entire page. In this case, the developer can provide a partial layout to be used for these responses, while returning the full page for regular requests. The `IsHtmx` property makes this easy...
 
 ```fsharp
-  // "partial" and "full" are handlers that return the contents;
+// "partial" and "full" are handlers that return the contents;
-  // "view" can be whatever your view engine needs for the body of the page
+// "view" can be whatever your view engine needs for the body of the page
-  let result view : HttpHandler =
+let result view : HttpHandler =
     fun next ctx ->
-      match ctx.Request.IsHtmx && not ctx.Request.IsHtmxRefresh with
+        if ctx.Request.IsHtmx && not ctx.Request.IsHtmxRefresh then
-      | true -> partial view
+            partial view
-      | false -> full view
+        else
+            full view
 ```
 
 htmx also utilizes [response headers](https://htmx.org/docs/#response_headers) to affect client-side behavior. For each of these, this library provides `HttpHandler`s that can be chained along with the response. As an example, if the server returns a redirect response (301, 302, 303, 307), the `XMLHttpRequest` handler on the client will follow the redirection before htmx can do anything with it. To redirect to a new page, you would return an OK (200) response with an `HX-Redirect` header set in the response.
 
 ```fsharp
-  let theHandler : HttpHandler =
+let theHandler : HttpHandler =
     fun next ctx ->
         // some interesting stuff
         withHxRedirect "/the-new-url" >=> Successful.OK
@@ -41,6 +44,8 @@ htmx also utilizes [response headers](https://htmx.org/docs/#response_headers) t
 
 Of note is that the `HX-Trigger` headers can take either one or more events. For a single event with no parameters, use `withHxTrigger`; for a single event with parameters, or multiple events, use `withHxTriggerMany`. Both these have `AfterSettle` and `AfterSwap` versions as well.
 
+`HtmxScript.local` provides an `HtmlString` with a script tag to load the package-provided htmx library. This can be used in code, Razor templates, etc. (If you're using Giraffe.ViewEngine, see below.)
+
 ## View Engine (`Giraffe.ViewEngine.Htmx`)
 
 As htmx uses [attributes](https://htmx.org/docs/#attributes) to extend HTML, the primary part of this library defines attributes that can be used within Giraffe views. Simply open `Giraffe.ViewEngine.Htmx`, and these attributes, along with support modules, will be visible.
@@ -48,8 +53,10 @@ As htmx uses [attributes](https://htmx.org/docs/#attributes) to extend HTML, the
 As an example, creating a `div` that loads data once the HTML is rendered:
 
 ```fsharp
-  let autoload =
+let autoload =
-    div [ _hxGet "/lazy-load-data"; _hxTrigger "load" ] [ str "Loading..." ]
+    div [ _hxGet "/lazy-load-data"; _hxTrigger HxTrigger.Load ] [
+        str "Loading..."
+    ]
 ```
 
 _(As `hx-boost="true"` is the usual desire for boosting, `_hxBoost` implies true. To disable it for an element, use `_hxNoBoost` instead.)_
@@ -57,20 +64,20 @@ _(As `hx-boost="true"` is the usual desire for boosting, `_hxBoost` implies true
 Some attributes have known values, such as `hx-trigger` and `hx-swap`; for these, there are modules with those values. For example, `HxTrigger.Load` could be used in the example above, to ensure that the known values are spelled correctly. `hx-trigger` can also take modifiers, such as an action that only responds to `Ctrl`+click. The `HxTrigger` module has a `Filter` submodule to assist with defining these actions.
 
 ```fsharp
-  let shiftClick =
+let shiftClick =
     p [ _hxGet = "/something"; _hxTrigger (HxTrigger.Filter.Shift HxTrigger.Click) ] [
         str "hold down Shift and click me"
     ]
 ```
 
-If you want to load htmx from unpkg, `Htmx.Script.minified` or `Htmx.Script.unminified` can be used to load the script in your HTML trees.
+If you want to use the package-provided htmx library, `Htmx.Script.local` will create the `script` tag for you. To load htmx from jsDelivr, `Htmx.Script.cdnMinified` or `Htmx.Script.cdnUnminified` can be used to load the script in your HTML trees. In this case, if you are using a Content Security Policy (CSP) header, `cdn.jsdelivr.net` will need to be added to the `script-src` list.
 
 ## Feedback / Help
 
-The author hangs out in the #htmx-general channel of the [htmx Discord server](https://htmx.org/discord) and the #web channel of the [F# Software Foundation's Slack server](https://fsharp.org/guides/slack/).
+The author hangs out in the #dotnet-htmx channel (and most others) of the [htmx Discord server](https://htmx.org/discord) and the #web channel of the [F# Software Foundation's Slack server](https://fsharp.org/guides/slack/).
 
 ## Thanks
-|[<img src="https://giraffe.wiki/giraffe.png" alt="Giraffe logo" width="200">](https://giraffe.wiki)|[<img src="https://bitbadger.solutions/htmx-black-transparent.svg" alt="htmx logo" width="200">](https://htmx.org)|[<img src="https://resources.jetbrains.com/storage/products/company/brand/logos/jb_beam.png" alt="JetBrains Logo (Main)" width="200">](https://jb.gg/OpenSource)|
+|[<img src="https://giraffe.wiki/giraffe.png" alt="Giraffe logo" width="200">](https://giraffe.wiki)| [<img src="https://bitbadger.solutions/upload/bit-badger/2024/01/htmx-black-transparent.svg" alt="htmx logo" width="200">](https://htmx.org) |[<img src="https://resources.jetbrains.com/storage/products/company/brand/logos/jb_beam.png" alt="JetBrains Logo (Main)" width="200">](https://jb.gg/OpenSource)|
-| :---: | :---: | :---: |
+| :---: |:------------------------------------------------------------------------------------------------------------------------------------:| :---: |
-|for making ASP.NET Core functional|for making HTML cool again|for licensing their tools to this project|
+|for making ASP.NET Core functional|                                                      for making HTML cool again                                                      |for licensing their tools to this project|
 

src/Common/Common.fs

@@ -1,28 +1,111 @@
-/// Common definitions shared between attribute values and response headers
+/// <summary>Common definitions shared between attribute values and response headers</summary>
 [<AutoOpen>]
 module Giraffe.Htmx.Common
 
-/// Valid values for the `hx-swap` attribute / `HX-Reswap` header (may be combined with swap/settle/scroll/show config)
+/// <summary>The version of htmx embedded in the package</summary>
+let HtmxVersion = "4.0.0-beta4"
+
+/// <summary>The path for the provided htmx script</summary>
+let internal htmxLocalScript = $"/_content/Giraffe.Htmx.Common/htmx.min.js?ver={HtmxVersion}"
+
+/// <summary>The path for the provided htmax script</summary>
+let internal htmaxLocalScript = $"/_content/Giraffe.Htmx.Common/htmax.min.js?ver={HtmxVersion}"
+
+/// <summary>Serialize a list of key/value pairs to JSON (very rudimentary)</summary>
+/// <param name="pairs">The key/value pairs to be serialized to JSON</param>
+/// <returns>A string with the key/value pairs serialized to JSON</returns>
+let internal toJson (pairs: (string * string) list) =
+    pairs
+    |> List.map (fun pair -> sprintf "\"%s\": \"%s\"" (fst pair) ((snd pair).Replace ("\"", "\\\"")))
+    |> String.concat ", "
+    |> sprintf "{ %s }"
+
+/// <summary>Convert a boolean to lowercase "true" or "false"</summary>
+/// <param name="boolValue">The boolean value to convert</param>
+/// <returns>"true" for <c>true</c>, "false" for <c>false</c></returns>
+let internal toLowerBool (boolValue: bool) =
+    (string boolValue).ToLowerInvariant()
+
+
+/// <summary>Valid values for the <c>hx-swap</c> attribute / <c>HX-Reswap</c> header</summary>
+/// <remarks>May be combined with <c>swap</c> / <c>scroll</c> / <c>show</c> config)</remarks>
+/// <seealso href="https://four.htmx.org/attributes/hx-swap/">Documentation</seealso>
 [<RequireQualifiedAccess>]
 module HxSwap =
     
-    /// The default, replace the inner html of the target element
+    /// <summary>The default, replace the inner HTML of the target element</summary>
+    [<Literal>]
     let InnerHtml = "innerHTML"
     
-    /// Replace the entire target element with the response
+    /// <summary>Replace the entire target element with the response</summary>
+    [<Literal>]
     let OuterHtml = "outerHTML"
     
-    /// Insert the response before the target element
+    /// <summary>Morph the inner HTML of the target to the new content</summary>
-    let BeforeBegin = "beforebegin"
+    [<Literal>]
+    let InnerMorph = "innerMorph"
     
-    /// Insert the response before the first child of the target element
+    /// <summary>Morph the outer HTML of the target to the new content</summary>
-    let AfterBegin = "afterbegin"
+    [<Literal>]
+    let OuterMorph = "outerMorph"
     
-    /// Insert the response after the last child of the target element
+    /// <summary>Morph the outer HTML of the target to the new content, recreating all children</summary>
-    let BeforeEnd = "beforeend"
+    /// <remarks>This is used internally by the new history extension, but can be used by others if desired</remarks>
+    [<Literal>]
+    let OuterSync = "outerSync"
     
-    /// Insert the response after the target element
+    /// <summary>Replace the text content of the target without parsing the response as HTML</summary>
-    let AfterEnd = "afterend"
+    [<Literal>]
+    let TextContent = "textContent"
     
-    /// Does not append content from response (out of band items will still be processed).
+    /// <summary>Insert the response before the target element</summary>
+    [<Literal>]
+    let Before = "before"
+    
+    /// <summary>Insert the response before the target element (pre-v4 name)</summary>
+    [<Literal>]
+    let BeforeBegin = Before
+    
+    /// <summary>Insert the response before the first child of the target element</summary>
+    [<Literal>]
+    let Prepend = "prepend"
+    
+    /// <summary>Insert the response before the first child of the target element (pre-v4 name)</summary>
+    [<Literal>]
+    let AfterBegin = Prepend
+    
+    /// <summary>Insert the response after the last child of the target element</summary>
+    [<Literal>]
+    let Append = "append"
+    
+    /// <summary>Insert the response after the last child of the target element (pre-v4 name)</summary>
+    [<Literal>]
+    let BeforeEnd = Append
+    
+    /// <summary>Insert the response after the target element</summary>
+    [<Literal>]
+    let After = "after"
+
+    /// <summary>Insert the response after the target element (pre-v4 name)</summary>
+    [<Literal>]
+    let AfterEnd = After
+    
+    /// <summary>Delete the target element regardless of response</summary>
+    [<Literal>]
+    let Delete = "delete"
+
+    /// <summary>Does not append content from response (out of band items will still be processed)</summary>
+    [<Literal>]
     let None = "none"
+
+    /// <summary>Update existing elements by <c>id</c> and add new ones</summary>
+    /// <remarks>This requires the <c>upsert</c> extension</remarks>
+    /// <seealso href="https://four.htmx.org/extensions/upsert">Extension</seealso>
+    [<Literal>]
+    let Upsert = "upsert"
+    
+    /// <summary>Specify that the target of the htmx request should be downloaded</summary>
+    /// <remarks>This requires the <c>hx-download</c> extension (included in the htmax bundle)</remarks>
+    /// <seealso href="https://four.htmx.org/extensions/hx-download#explicit-swap-style">Documentation</seealso>
+    [<Literal>]
+    let Download = "download"

src/Common/Giraffe.Htmx.Common.fsproj

@@ -1,14 +1,24 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk.Razor">
 
   <PropertyGroup>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <Description>Common definitions for Giraffe.Htmx</Description>
     <PackageReadmeFile>README.md</PackageReadmeFile>
+    <DocumentationFile>bin\$(Configuration)\$(TargetFramework)\$(AssemblyName).xml</DocumentationFile>
   </PropertyGroup>
 
   <ItemGroup>
     <Compile Include="Common.fs" />
     <None Include="README.md" Pack="true" PackagePath="\" />
+    <None Include="..\icon.png" Pack="true" PackagePath="\" />
   </ItemGroup>
 
+  <ItemGroup>
+    <PackageReference Include="FSharp.Core" />
+  </ItemGroup>
+  
+  <ItemGroup>
+    <InternalsVisibleTo Include="Giraffe.Htmx" />
+    <InternalsVisibleTo Include="Giraffe.ViewEngine.Htmx" />
+  </ItemGroup>
 </Project>

src/Common/README.md

@@ -1,5 +1,7 @@
 ## Giraffe.Htmx.Common
 
-This package contains common code shared between [`Giraffe.Htmx`](https://www.nuget.org/packages/Giraffe.Htmx) and [`Giraffe.ViewEngine.Htmx`](https://www.nuget.org/packages/Giraffe.ViewEngine.Htmx), and will be automatically installed when you install either one.
+This package contains common code shared between [`Giraffe.Htmx`](https://www.nuget.org/packages/Giraffe.Htmx) and [`Giraffe.ViewEngine.Htmx`](https://www.nuget.org/packages/Giraffe.ViewEngine.Htmx), and will be automatically installed when you install either one. It also contains htmx as a static web asset, allowing it to be loaded from your local (or published) project.
 
-**htmx version: 1.9.8**
+**htmx version: 4.0.0-beta4**
+
+_**NOTE:** Pay special attention to breaking changes highlighted in the packages listed above._

src/Directory.Build.props

@@ -1,14 +1,25 @@
 <?xml version="1.0" encoding="utf-8" standalone="no"?>
 <Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
     <PropertyGroup>
-        <TargetFrameworks>net6.0;net7.0;net8.0</TargetFrameworks>
+        <TargetFrameworks>net8.0;net9.0;net10.0</TargetFrameworks>
-        <VersionPrefix>1.9.8</VersionPrefix>
+        <VersionPrefix>4.0.0</VersionPrefix>
-        <PackageReleaseNotes>Update script tags to pull htmx 1.9.8; add support for .NET 8</PackageReleaseNotes>
+        <VersionSuffix>beta4</VersionSuffix>
+        <GenerateDocumentationFile>true</GenerateDocumentationFile>
+        <PackageReleaseNotes>Update htmx 4 to beta4 
+- [Common] Update provided htmx 4 to 4.0.0-beta4
+- [Common] Add htmax bundle to provided version
+- [Server] Update HX-Target header to return tag and ID (similar to HX-Source)
+- [Server] Add support for HX-Request-Type header
+- [View Engine] Add hx-status attribute, outerSync swap
+- [View Engine] Updated script tags to pull htmx 4.0.0-beta4, added "max" bundle links for local and CDN
+
+See package and prior alpha release READMEs; v2 to v4 is not an update-and-forget-it release
+        </PackageReleaseNotes>
         <Authors>danieljsummers</Authors>
         <Company>Bit Badger Solutions</Company>
-        <PackageProjectUrl>https://github.com/bit-badger/Giraffe.Htmx</PackageProjectUrl>
+        <PackageProjectUrl>https://git.bitbadger.solutions/bit-badger/Giraffe.Htmx</PackageProjectUrl>
         <PackageRequireLicenseAcceptance>false</PackageRequireLicenseAcceptance>
-        <RepositoryUrl>https://github.com/bit-badger/Giraffe.Htmx</RepositoryUrl>
+        <RepositoryUrl>https://git.bitbadger.solutions/bit-badger/Giraffe.Htmx</RepositoryUrl>
         <RepositoryType>Git</RepositoryType>
         <Copyright>MIT License</Copyright>
         <PackageLicenseExpression>MIT</PackageLicenseExpression>

src/Directory.Packages.props

@@ -0,0 +1,13 @@
+<Project>
+  <PropertyGroup>
+    <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageVersion Include="Expecto" Version="11.0.0" />
+    <PackageVersion Include="Giraffe" Version="8.2.0" />
+    <PackageVersion Include="Giraffe.ViewEngine" Version="1.4.0" />
+    <PackageVersion Include="NSubstitute" Version="5.3.0" />
+    <PackageVersion Include="FSharp.Core" Version="10.1.301" />
+    <!-- <PackageVersion Update="FSharp.Core" Version="10.0.0" /> -->
+  </ItemGroup>
+</Project>

src/Giraffe.Htmx.sln

@@ -1,40 +0,0 @@
-
-Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 16
-VisualStudioVersion = 16.0.30114.105
-MinimumVisualStudioVersion = 10.0.40219.1
-Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "Giraffe.Htmx", "Htmx\Giraffe.Htmx.fsproj", "{8AB3085C-5236-485A-8565-A09106E72E1E}"
-EndProject
-Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "Giraffe.ViewEngine.Htmx", "ViewEngine.Htmx\Giraffe.ViewEngine.Htmx.fsproj", "{F718B3C1-EE01-4F04-ABCE-BF2AE700FDA9}"
-EndProject
-Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "Giraffe.Htmx.Common", "Common\Giraffe.Htmx.Common.fsproj", "{75D66845-F93A-4463-AD29-A8B16E4D4BA9}"
-EndProject
-Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "Tests", "Tests\Tests.fsproj", "{39823773-4311-4E79-9CA0-F9DDC40CAF6A}"
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Any CPU = Debug|Any CPU
-		Release|Any CPU = Release|Any CPU
-	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{8AB3085C-5236-485A-8565-A09106E72E1E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{8AB3085C-5236-485A-8565-A09106E72E1E}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{8AB3085C-5236-485A-8565-A09106E72E1E}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{8AB3085C-5236-485A-8565-A09106E72E1E}.Release|Any CPU.Build.0 = Release|Any CPU
-		{F718B3C1-EE01-4F04-ABCE-BF2AE700FDA9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{F718B3C1-EE01-4F04-ABCE-BF2AE700FDA9}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{F718B3C1-EE01-4F04-ABCE-BF2AE700FDA9}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{F718B3C1-EE01-4F04-ABCE-BF2AE700FDA9}.Release|Any CPU.Build.0 = Release|Any CPU
-		{75D66845-F93A-4463-AD29-A8B16E4D4BA9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{75D66845-F93A-4463-AD29-A8B16E4D4BA9}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{75D66845-F93A-4463-AD29-A8B16E4D4BA9}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{75D66845-F93A-4463-AD29-A8B16E4D4BA9}.Release|Any CPU.Build.0 = Release|Any CPU
-		{39823773-4311-4E79-9CA0-F9DDC40CAF6A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{39823773-4311-4E79-9CA0-F9DDC40CAF6A}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{39823773-4311-4E79-9CA0-F9DDC40CAF6A}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{39823773-4311-4E79-9CA0-F9DDC40CAF6A}.Release|Any CPU.Build.0 = Release|Any CPU
-	EndGlobalSection
-EndGlobal

src/Giraffe.Htmx.slnx

@@ -0,0 +1,6 @@
+<Solution>
+  <Project Path="Common/Giraffe.Htmx.Common.fsproj" />
+  <Project Path="Htmx/Giraffe.Htmx.fsproj" />
+  <Project Path="Tests/Tests.fsproj" />
+  <Project Path="ViewEngine.Htmx/Giraffe.ViewEngine.Htmx.fsproj" />
+</Solution>

src/Htmx/Giraffe.Htmx.fsproj

@@ -4,15 +4,18 @@
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <Description>htmx header extensions and helpers for Giraffe</Description>
     <PackageReadmeFile>README.md</PackageReadmeFile>
+    <DocumentationFile>bin\$(Configuration)\$(TargetFramework)\$(AssemblyName).xml</DocumentationFile>
   </PropertyGroup>
 
   <ItemGroup>
     <Compile Include="Htmx.fs" />
     <None Include="README.md" Pack="true" PackagePath="\" />
+    <None Include="..\icon.png" Pack="true" PackagePath="\" />
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Giraffe" Version="5.0.0" />
+    <PackageReference Include="Giraffe" />
+    <PackageReference Include="FSharp.Core" />
   </ItemGroup>
 
   <ItemGroup>

src/Htmx/Htmx.fs

@@ -4,6 +4,14 @@ open Microsoft.AspNetCore.Http
 open Microsoft.Extensions.Primitives
 open System
 
+/// <summary>The request types which may be set in the <c>HX-Request</c> header</summary>
+type HxRequestTypes =
+    /// <summary>A request targeting the <c>body</c> tag or using an <c>hx-select</c> attribute</summary>
+    | HxFullRequest
+    
+    /// <summary>A request for partial content</summary>
+    | HxPartialRequest
+
 /// Determine if the given header is present
 let private hdr (headers : IHeaderDictionary) hdr =
     match headers[hdr] with it when it = StringValues.Empty -> None | it -> Some it[0]
@@ -11,121 +19,236 @@ let private hdr (headers : IHeaderDictionary) hdr =
 /// Extensions to the header dictionary
 type IHeaderDictionary with
   
-    /// Indicates that the request is via an element using `hx-boost`
+    /// <summary>Indicates that the request is via an element using <c>hx-boost</c></summary>
-    member this.HxBoosted with get () = hdr this "HX-Boosted" |> Option.map bool.Parse
+    member this.HxBoosted
+        with get () = hdr this "HX-Boosted" |> Option.map bool.Parse
     
-    /// The current URL of the browser _(note that this does not update until after settle)_
+    /// <summary>The current URL of the browser <em>(note that this does not update until after settle)</em></summary>
-    member this.HxCurrentUrl with get () = hdr this "HX-Current-URL" |> Option.map Uri
+    member this.HxCurrentUrl
+        with get () = hdr this "HX-Current-URL" |> Option.map Uri
     
-    /// `true` if the request is for history restoration after a miss in the local history cache
+    /// <summary><c>true</c> if the request is for history restoration after a miss in the local history cache</summary>
-    member this.HxHistoryRestoreRequest with get () = hdr this "HX-History-Restore-Request" |> Option.map bool.Parse
+    member this.HxHistoryRestoreRequest
+        with get () = hdr this "HX-History-Restore-Request" |> Option.map bool.Parse
 
-    /// The user response to an `hx-prompt`
+    /// <summary><c>true</c> if the request has been fired by the preload extension</summary>
-    member this.HxPrompt with get () = hdr this "HX-Prompt"
+    /// <remarks><c>preload</c> is part of the htmax htmx-plus-extensions bundle</remarks>
+    member this.HxPreloaded
+        with get () = hdr this "HX-Preloaded" |> Option.map bool.Parse
     
-    /// `true` if the request came from HTMX
+    /// <summary>The user response to an <c>hx-prompt</c></summary>
-    member this.HxRequest with get () = hdr this "HX-Request" |> Option.map bool.Parse
+    [<Obsolete "hx-prompt is removed in v4">]
+    member this.HxPrompt
+        with get () = hdr this "HX-Prompt"
 
-    /// The `id` of the target element if it exists
+    /// <summary><c>true</c> if the request came from htmx</summary>
-    member this.HxTarget with get () = hdr this "HX-Target"
+    member this.HxRequest
+        with get () = hdr this "HX-Request" |> Option.map bool.Parse
 
-    /// The `id` of the triggered element if it exists
+    /// <summary>The ID of the request (WebSocket extension requests only)</summary>
-    member this.HxTrigger with get () = hdr this "HX-Trigger"
+    /// <remarks><c>hx-ws</c> is part of the htmax htmx-plus-extensions bundle</remarks>
+    member this.HxRequestId
+        with get () = hdr this "HX-Request-ID"
     
-    /// The `name` of the triggered element if it exists
+    /// <summary>The request type sent by htmx</summary>
-    member this.HxTriggerName with get () = hdr this "HX-Trigger-Name"
+    /// <seealso cref="HxRequestTypes" />
+    member this.HxRequestType
+        with get () =
+            match hdr this "HX-Request-Type" with
+            | Some typ when typ = "full" -> Some HxFullRequest
+            | Some typ when typ = "partial" -> Some HxPartialRequest
+            | Some _ -> None
+            | None -> None
+                
+    /// <summary>The tag name (fst) and <c>id</c> attribute (snd) of the element triggering this request</summary>
+    member this.HxSource
+        with get () =
+            match hdr this "HX-Source" with
+            | Some src ->
+                let parts = src.Split "#"
+                if parts.Length = 1 then
+                    Some (parts[0], None)
+                else
+                    Some (parts[0], if parts[1] <> "" then Some parts[1] else None)
+            | None -> None
+
+    /// <summary>The <c>id</c> attribute of the target element if it exists</summary>
+    /// <remarks>
+    /// In v4, this changed to tag name (fst) and <c>id</c> (snd); to resolve build errors, and restore the prior
+    /// behavior of <c>[id] option</c>, replace
+    /// <code>ctx.HxTarget</code>
+    /// with
+    /// <code>ctx.HxTarget |> Option.iter snd</code>
+    /// </remarks>
+    member this.HxTarget
+        with get () =
+            match hdr this "HX-Target" with
+            | Some src ->
+                let parts = src.Split "#"
+                if parts.Length = 1 then
+                    Some (parts[0], None)
+                else
+                    Some (parts[0], if parts[1] <> "" then Some parts[1] else None)
+            | None -> None
+
+    /// <summary>The <c>id</c> attribute of the triggered element if it exists</summary>
+    [<Obsolete "HX-Trigger is removed in v4; use the second item of HX-Source">]
+    member this.HxTrigger
+        with get () = hdr this "HX-Trigger"
+
+    /// <summary>The <c>name</c> attribute of the triggered element if it exists</summary>
+    [<Obsolete "HX-Trigger-Name is removed in v4; may be available via extension, but will be removed from this library">]
+    member this.HxTriggerName
+        with get () = hdr this "HX-Trigger-Name"
 
 
 /// Extensions for the request object
 type HttpRequest with
 
-    /// Whether this request was initiated from htmx
+    /// <summary>Whether this request was initiated from htmx</summary>
-    member this.IsHtmx with get () = this.Headers.HxRequest |> Option.defaultValue false
+    member this.IsHtmx
+        with get () = this.Headers.HxRequest |> Option.defaultValue false
 
-    /// Whether this request is an htmx history-miss refresh request
+    /// <summary>Whether this request is an htmx history-miss refresh request</summary>
-    member this.IsHtmxRefresh with get () =
+    member this.IsHtmxRefresh
-        this.IsHtmx && (this.Headers.HxHistoryRestoreRequest |> Option.defaultValue false)
+        with get () = this.IsHtmx && (this.Headers.HxHistoryRestoreRequest |> Option.defaultValue false)
 
 
-/// HTTP handlers for setting output headers
+/// <summary>HTTP handlers for setting output headers</summary>
 [<AutoOpen>]
 module Handlers =
 
-    /// Convert a boolean to lowercase `true` or `false`
+    open Giraffe.Htmx.Common
-    let private toLowerBool (trueOrFalse : bool) =
-        (string trueOrFalse).ToLowerInvariant ()
     
-    /// Serialize a list of key/value pairs to JSON (very rudimentary)
+    /// <summary>Instruct htmx to download a response from another path / URL</summary>
-    let private toJson (evts : (string * string) list) =
+    /// <param name="path">The path or URL where the downloadable content is found</param>
-        evts
+    /// <returns>An HTTP handler with the <c>HX-Download</c> header set</returns>
-        |> List.map (fun evt -> sprintf "\"%s\": \"%s\"" (fst evt) ((snd evt).Replace ("\"", "\\\"")))
+    /// <remarks>This requires the client-side <c>hx-download</c> extension (included in the htmax bundle)</remarks>
-        |> String.concat ", "
+    /// <seealso href="https://four.htmx.org/extensions/hx-download#hx-download-header">Documentation</seealso>
-        |> sprintf "{ %s }"
+    let withHxDownload (path: string) : HttpHandler =
+        setHttpHeader "HX-Download" path
     
-    /// Pushes a new url into the history stack
+    /// <summary>Instruct htmx to perform a client-side redirect for content</summary>
-    let withHxPushUrl : string -> HttpHandler =
+    /// <param name="path">The path where the content should be found</param>
-        setHttpHeader "HX-Push-Url"
+    /// <returns>An HTTP handler with the <c>HX-Location</c> header set</returns>
+    /// <seealso href="https://htmx.org/headers/hx-location/">Documentation</seealso>
+    let withHxLocation (path: string) : HttpHandler =
+        setHttpHeader "HX-Location" path
     
-    /// Explicitly do not push a new URL into the history stack
+    /// <summary>Pushes a new url into the history stack</summary>
+    /// <param name="url">The URL to be pushed</param>
+    /// <returns>An HTTP handler with the <c>HX-Push-Url</c> header set</returns>
+    /// <remarks>Use <see cref="withHxNoPushUrl" /> to explicitly not push a new URL</remarks>
+    /// <seealso href="https://htmx.org/headers/hx-push-url/">Documentation</seealso>
+    let withHxPushUrl (url: string) : HttpHandler =
+        setHttpHeader "HX-Push-Url" url
+
+    /// <summary>Explicitly do not push a new URL into the history stack</summary>
+    /// <returns>An HTTP handler with the <c>HX-Push-Url</c> header set to <c>false</c></returns>
+    /// <seealso href="https://htmx.org/headers/hx-push-url/">Documentation</seealso>
     let withHxNoPushUrl : HttpHandler =
         toLowerBool false |> withHxPushUrl
       
-    /// Pushes a new url into the history stack
+    /// <summary>Can be used to do a client-side redirect to a new location</summary>
-    [<Obsolete "Use withHxPushUrl; HX-Push was replaced by HX-Push-Url in v1.8.0">]
+    /// <param name="url">The URL to which the client should be redirected</param>
-    let withHxPush = withHxPushUrl
+    /// <returns>An HTTP handler with the <c>HX-Redirect</c> header set</returns>
+    /// <seealso href="https://htmx.org/headers/hx-redirect/">Documentation</seealso>
+    let withHxRedirect (url: string) : HttpHandler =
+        setHttpHeader "HX-Redirect" url
 
-    /// Explicitly do not push a new URL into the history stack
+    /// <summary>If set to <c>true</c> the client side will do a full refresh of the page</summary>
-    [<Obsolete "Use withHxNoPushUrl; HX-Push was replaced by HX-Push-Url in v1.8.0">]
+    /// <param name="shouldRefresh">Whether the client should refresh their page</param>
-    let withHxNoPush = withHxNoPushUrl
+    /// <returns>An HTTP handler with the <c>HX-Refresh</c> header set</returns>
+    let withHxRefresh shouldRefresh : HttpHandler =
+        (toLowerBool >> setHttpHeader "HX-Refresh") shouldRefresh
 
-    /// Can be used to do a client-side redirect to a new location
+    /// <summary>Replaces the current URL in the history stack</summary>
-    let withHxRedirect : string -> HttpHandler =
+    /// <param name="url">The URL to place in the history stack in place of the current one</param>
-        setHttpHeader "HX-Redirect"
+    /// <returns>An HTTP handler with the <c>HX-Replace-URL</c> header set</returns>
+    /// <remarks>Use <see cref="withHxNoRelaceUrl" /> to explicitly not replace the current URL</remarks>
+    /// <seealso href="https://htmx.org/headers/hx-replace-url/">Documentation</seealso>
+    let withHxReplaceUrl url : HttpHandler =
+        setHttpHeader "HX-Replace-Url" url
 
-    /// If set to `true` the client side will do a a full refresh of the page
+    /// <summary>Explicitly do not replace the current URL in the history stack</summary>
-    let withHxRefresh : bool -> HttpHandler =
+    /// <returns>An HTTP handler with the <c>HX-Replace-URL</c> header set to <c>false</c></returns>
-        toLowerBool >> setHttpHeader "HX-Refresh"
+    /// <seealso href="https://htmx.org/headers/hx-replace-url/">Documentation</seealso>
-
-    /// Replaces the current URL in the history stack
-    let withHxReplaceUrl : string -> HttpHandler =
-        setHttpHeader "HX-Replace-Url"
-
-    /// Explicitly do not replace the current URL in the history stack
     let withHxNoReplaceUrl : HttpHandler =
         toLowerBool false |> withHxReplaceUrl
     
-    /// Override which portion of the response will be swapped into the target document
+    /// <summary>Override which portion of the response will be swapped into the target document</summary>
-    let withHxReselect : string -> HttpHandler =
+    /// <param name="target">The selector for the new response target</param>
-        setHttpHeader "HX-Reselect"
+    /// <returns>An HTTP handler with the <c>HX-Reselect</c> header set</returns>
+    let withHxReselect (target: string) : HttpHandler =
+        setHttpHeader "HX-Reselect" target
     
-    /// Override the `hx-swap` attribute from the initiating element
+    /// <summary>Override the <c>hx-swap</c> attribute from the initiating element</summary>
-    let withHxReswap : string -> HttpHandler =
+    /// <param name="swap">The swap value to override</param>
-        setHttpHeader "HX-Reswap"
+    /// <returns>An HTTP handler with the <c>HX-Reswap</c> header set</returns>
+    /// <remarks>Use <see cref="T:Giraffe.Htmx.Common.HxSwap">HxSwap</see> constants for best results</remarks>
+    let withHxReswap (swap: string) : HttpHandler =
+        setHttpHeader "HX-Reswap" swap
 
-    /// Allows you to override the `hx-target` attribute
+    /// <summary>Allows you to override the <c>hx-target</c> attribute</summary>
-    let withHxRetarget : string -> HttpHandler =
+    /// <param name="target">The new target for the response</param>
-        setHttpHeader "HX-Retarget"
+    /// <returns>An HTTP handler with the <c>HX-Retarget</c> header set</returns>
+    let withHxRetarget (target: string) : HttpHandler =
+        setHttpHeader "HX-Retarget" target
 
-    /// Allows you to trigger a single client side event
+    /// <summary>Allows you to trigger a single client side event</summary>
-    let withHxTrigger : string -> HttpHandler =
+    /// <param name="evt">The call to the event that should be triggered</param>
-        setHttpHeader "HX-Trigger"
+    /// <returns>An HTTP handler with the <c>HX-Trigger</c> header set</returns>
+    /// <seealso href="https://htmx.org/headers/hx-trigger/">Documentation</seealso>
+    let withHxTrigger (evt: string) : HttpHandler =
+        setHttpHeader "HX-Trigger" evt
 
-    /// Allows you to trigger multiple client side events
+    /// <summary>Allows you to trigger multiple client side events</summary>
+    /// <param name="evts">The calls to events that should be triggered</param>
+    /// <returns>An HTTP handler with the <c>HX-Trigger</c> header set for all given events</returns>
+    /// <seealso href="https://htmx.org/headers/hx-trigger/">Documentation</seealso>
     let withHxTriggerMany evts : HttpHandler =
         toJson evts |> setHttpHeader "HX-Trigger"
 
-    /// Allows you to trigger a single client side event after changes have settled
+    /// <summary>Allows you to trigger a single client side event after changes have settled</summary>
-    let withHxTriggerAfterSettle : string -> HttpHandler =
+    /// <param name="evt">The call to the event that should be triggered</param>
-        setHttpHeader "HX-Trigger-After-Settle"
+    /// <returns>An HTTP handler with the <c>HX-Trigger-After-Settle</c> header set</returns>
+    /// <seealso href="https://htmx.org/headers/hx-trigger/">Documentation</seealso>
+    [<Obsolete "Removed in v4; use withHxTrigger">]
+    let withHxTriggerAfterSettle (evt: string) : HttpHandler =
+        setHttpHeader "HX-Trigger" evt
 
-    /// Allows you to trigger multiple client side events after changes have settled
+    /// <summary>Allows you to trigger multiple client side events after changes have settled</summary>
+    /// <param name="evts">The calls to events that should be triggered</param>
+    /// <returns>An HTTP handler with the <c>HX-Trigger-After-Settle</c> header set for all given events</returns>
+    /// <seealso href="https://htmx.org/headers/hx-trigger/">Documentation</seealso>
+    [<Obsolete "Removed in v4; use withHxTrigger">]
     let withHxTriggerManyAfterSettle evts : HttpHandler =
-        toJson evts |> setHttpHeader "HX-Trigger-After-Settle"
+        toJson evts |> setHttpHeader "HX-Trigger"
 
-    /// Allows you to trigger a single client side event after DOM swapping occurs
+    /// <summary>Allows you to trigger a single client side event after DOM swapping occurs</summary>
-    let withHxTriggerAfterSwap : string -> HttpHandler =
+    /// <param name="evt">The call to the event that should be triggered</param>
-        setHttpHeader "HX-Trigger-After-Swap"
+    /// <returns>An HTTP handler with the <c>HX-Trigger-After-Swap</c> header set</returns>
+    /// <seealso href="https://htmx.org/headers/hx-trigger/">Documentation</seealso>
+    [<Obsolete "Removed in v4; use withHxTrigger">]
+    let withHxTriggerAfterSwap (evt: string) : HttpHandler =
+        setHttpHeader "HX-Trigger" evt
 
-    /// Allows you to trigger multiple client side events after DOM swapping occurs
+    /// <summary>Allows you to trigger multiple client side events after DOM swapping occurs</summary>
+    /// <param name="evts">The calls to events that should be triggered</param>
+    /// <returns>An HTTP handler with the <c>HX-Trigger-After-Swap</c> header set for all given events</returns>
+    /// <seealso href="https://htmx.org/headers/hx-trigger/">Documentation</seealso>
+    [<Obsolete "Removed in v4; use withHxTrigger">]
     let withHxTriggerManyAfterSwap evts : HttpHandler =
-        toJson evts |> setHttpHeader "HX-Trigger-After-Swap"
+        toJson evts |> setHttpHeader "HX-Trigger"
+
+
+/// <summary>Load the package-provided version of the htmx script</summary>
+[<RequireQualifiedAccess>]
+module HtmxScript =
+    
+    open Giraffe.Htmx.Common
+    open Microsoft.AspNetCore.Html
+
+    /// <summary><c>script</c> tag to load the package-provided version of the htmx script</summary>
+    let local = HtmlString $"""<script src="{htmxLocalScript}"></script>"""
+    

src/Htmx/README.md

@@ -2,7 +2,11 @@
 
 This package enables server-side support for [htmx](https://htmx.org) within [Giraffe](https://giraffe.wiki) and ASP.NET's `HttpContext`.
 
-**htmx version: 1.9.8**
+**htmx version: 4.0.0-beta4**
+
+_Upgrading from v2.x: the [migration guide](https://four.htmx.org/docs/get-started/migration) lists changes for v4. For this package, the `HX-Trigger` and `HX-Trigger-Name` headers are marked obsolete. They are replaced by `HX-Source`, which provides the triggering tag name and `id` attribute. The `HX-Prompt` header has also been marked as obsolete, as the `hx-prompt` attribute which generated its content has been removed._
+
+_Obsolete elements will be removed in the first production v4 release._
 
 ### Setup
 
@@ -14,17 +18,17 @@ This package enables server-side support for [htmx](https://htmx.org) within [Gi
 To obtain a request header, using the `IHeaderDictionary` extension properties:
 
 ```fsharp
-  let myHandler : HttpHander =
+let myHandler : HttpHander =
     fun next ctx ->
-      match ctx.HxPrompt with
+        match ctx.Target with
-      | Some prompt -> ... // do something with the text the user provided
+        | Some elt -> ... // do something with id of the target element
-      | None -> ... // no text provided
+        | None -> ... // no target element provided
 ```
 
 To set a response header:
 
 ```fsharp
-  let myHandler : HttpHander =
+let myHandler : HttpHander =
     fun next ctx ->
         // some meaningful work
         withHxPushUrl "/some/new/url" >=> [other handlers]
@@ -32,6 +36,8 @@ To set a response header:
 
 The `HxSwap` module has constants to use for the `HX-Reswap` header. These may be extended with settle, show, and other qualifiers; see the htmx documentation for the `hx-swap` attribute for more information.
 
+To load the package-provided htmx library without using Giraffe.ViewEngine, use `HtmxScript.local`.
+
 ### Learn
 
 The naming conventions of this library were selected to mirror those provided by htmx. The header properties become `Hx*` on the `ctx.Request.Headers` object, and the response handlers are `withHx*` based on the header being set. The only part that does not line up is `withHxTrigger*` and `withHxTriggerMany`; the former set work with a single string (to trigger a single event with no arguments), while the latter set supports both arguments and multiple events.

src/Tests/Common.fs

@@ -3,6 +3,12 @@ module Common
 open Expecto
 open Giraffe.Htmx
 
+/// Test to ensure the version was updated
+let version =
+    test "HtmxVersion is correct" {
+        Expect.equal HtmxVersion "4.0.0-beta4" "htmx version incorrect"
+    }
+
 /// Tests for the HxSwap module
 let swap =
     testList "HxSwap" [
@@ -12,22 +18,55 @@ let swap =
         test "OuterHtml is correct" {
             Expect.equal HxSwap.OuterHtml "outerHTML" "Outer HTML swap value incorrect"
         }
-        test "BeforeBegin is correct" {
+        test "InnerMorph is correct" {
-            Expect.equal HxSwap.BeforeBegin "beforebegin" "Before Begin swap value incorrect"
+            Expect.equal HxSwap.InnerMorph "innerMorph" "Inner Morph swap value incorrect"
         }
-        test "BeforeEnd is correct" {
+        test "OuterMorph is correct" {
-            Expect.equal HxSwap.BeforeEnd "beforeend" "Before End swap value incorrect"
+            Expect.equal HxSwap.OuterMorph "outerMorph" "Outer Morph swap value incorrect"
+        }
+        test "OuterSync is correct" {
+            Expect.equal HxSwap.OuterSync "outerSync" "Outer Sync swap value incorrect"
+        }
+        test "TextContent is correct" {
+            Expect.equal HxSwap.TextContent "textContent" "Text Content swap value incorrect"
+        }
+        test "Before is correct" {
+            Expect.equal HxSwap.Before "before" "Before swap value incorrect"
+        }
+        test "BeforeBegin is correct" {
+            Expect.equal HxSwap.BeforeBegin HxSwap.Before "Before Begin swap value incorrect"
+        }
+        test "Prepend is correct" {
+            Expect.equal HxSwap.Prepend "prepend" "Prepend swap value incorrect"
         }
         test "AfterBegin is correct" {
-            Expect.equal HxSwap.AfterBegin "afterbegin" "After Begin swap value incorrect"
+            Expect.equal HxSwap.AfterBegin HxSwap.Prepend "Prepend swap value incorrect"
+        }
+        test "Append is correct" {
+            Expect.equal HxSwap.Append "append" "Append swap value incorrect"
+        }
+        test "BeforeEnd is correct" {
+            Expect.equal HxSwap.BeforeEnd HxSwap.Append "Before End swap value incorrect"
+        }
+        test "After is correct" {
+            Expect.equal HxSwap.After "after" "After swap value incorrect"
         }
         test "AfterEnd is correct" {
-            Expect.equal HxSwap.AfterEnd "afterend" "After End swap value incorrect"
+            Expect.equal HxSwap.AfterEnd HxSwap.After "After End swap value incorrect"
+        }
+        test "Delete is correct" {
+            Expect.equal HxSwap.Delete "delete" "Delete swap value incorrect"
         }
         test "None is correct" {
             Expect.equal HxSwap.None "none" "None swap value incorrect"
         }
+        test "Upsert is correct" {
+            Expect.equal HxSwap.Upsert "upsert" "Upsert swap value incorrect"
+        }
+        test "Download is correct" {
+            Expect.equal HxSwap.Download "download" "Download swap value incorrect"
+        }
     ]
 
 /// All tests for this module
-let allTests = testList "Htmx.Common" [ swap ]
+let allTests = testList "Htmx.Common" [ version; swap ]

src/Tests/Htmx.fs

@@ -11,22 +11,22 @@ let dictExtensions =
     testList "IHeaderDictionaryExtensions" [
         testList "HxBoosted" [
             test "succeeds when the header is not present" {
-                let ctx = Substitute.For<HttpContext> ()
+                let ctx = Substitute.For<HttpContext>()
-                ctx.Request.Headers.ReturnsForAnyArgs (HeaderDictionary ()) |> ignore
+                ctx.Request.Headers.ReturnsForAnyArgs(HeaderDictionary()) |> ignore
                 Expect.isNone ctx.Request.Headers.HxBoosted "There should not have been a header returned"
             }
             test "succeeds when the header is present and true" {
-                let ctx = Substitute.For<HttpContext> ()
+                let ctx = Substitute.For<HttpContext>()
-                let dic = HeaderDictionary ()
+                let dic = HeaderDictionary()
-                dic.Add ("HX-Boosted", "true")
+                dic.Add("HX-Boosted", "true")
                 ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
                 Expect.isSome ctx.Request.Headers.HxBoosted "There should be a header present"
                 Expect.isTrue ctx.Request.Headers.HxBoosted.Value "The header value should have been true"
             }
             test "succeeds when the header is present and false" {
-                let ctx = Substitute.For<HttpContext> ()
+                let ctx = Substitute.For<HttpContext>()
-                let dic = HeaderDictionary ()
+                let dic = HeaderDictionary()
-                dic.Add ("HX-Boosted", "false")
+                dic.Add("HX-Boosted", "false")
                 ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
                 Expect.isSome ctx.Request.Headers.HxBoosted "There should be a header present"
                 Expect.isFalse ctx.Request.Headers.HxBoosted.Value "The header value should have been false"
@@ -34,14 +34,14 @@ let dictExtensions =
         ]
         testList "HxCurrentUrl" [
             test "succeeds when the header is not present" {
-                let ctx = Substitute.For<HttpContext> ()
+                let ctx = Substitute.For<HttpContext>()
-                ctx.Request.Headers.ReturnsForAnyArgs (HeaderDictionary ()) |> ignore
+                ctx.Request.Headers.ReturnsForAnyArgs(HeaderDictionary()) |> ignore
                 Expect.isNone ctx.Request.Headers.HxCurrentUrl "There should not have been a header returned"
             }
             test "succeeds when the header is present" {
-                let ctx = Substitute.For<HttpContext> ()
+                let ctx = Substitute.For<HttpContext>()
-                let dic = HeaderDictionary ()
+                let dic = HeaderDictionary()
-                dic.Add ("HX-Current-URL", "http://localhost/test.htm")
+                dic.Add("HX-Current-URL", "http://localhost/test.htm")
                 ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
                 Expect.isSome ctx.Request.Headers.HxCurrentUrl "There should be a header present"
                 Expect.equal
@@ -51,109 +51,194 @@ let dictExtensions =
         ]
         testList "HxHistoryRestoreRequest" [
             test "succeeds when the header is not present" {
-                let ctx = Substitute.For<HttpContext> ()
+                let ctx = Substitute.For<HttpContext>()
-                ctx.Request.Headers.ReturnsForAnyArgs (HeaderDictionary ()) |> ignore
+                ctx.Request.Headers.ReturnsForAnyArgs(HeaderDictionary()) |> ignore
                 Expect.isNone ctx.Request.Headers.HxHistoryRestoreRequest "There should not have been a header returned"
             }
             test "succeeds when the header is present and true" {
-                let ctx = Substitute.For<HttpContext> ()
+                let ctx = Substitute.For<HttpContext>()
-                let dic = HeaderDictionary ()
+                let dic = HeaderDictionary()
-                dic.Add ("HX-History-Restore-Request", "true")
+                dic.Add("HX-History-Restore-Request", "true")
                 ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
                 Expect.isSome ctx.Request.Headers.HxHistoryRestoreRequest "There should be a header present"
                 Expect.isTrue ctx.Request.Headers.HxHistoryRestoreRequest.Value "The header value should have been true"
             }
             test "succeeds when the header is present and false" {
-                let ctx = Substitute.For<HttpContext> ()
+                let ctx = Substitute.For<HttpContext>()
-                let dic = HeaderDictionary ()
+                let dic = HeaderDictionary()
-                dic.Add ("HX-History-Restore-Request", "false")
+                dic.Add("HX-History-Restore-Request", "false")
                 ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
                 Expect.isSome ctx.Request.Headers.HxHistoryRestoreRequest "There should be a header present"
                 Expect.isFalse
                     ctx.Request.Headers.HxHistoryRestoreRequest.Value "The header should have been false"
             }
         ]
-        testList "HxPrompt" [
+        testList "HxPreloaded" [
             test "succeeds when the header is not present" {
-                let ctx = Substitute.For<HttpContext> ()
+                let ctx = Substitute.For<HttpContext>()
-                ctx.Request.Headers.ReturnsForAnyArgs (HeaderDictionary ()) |> ignore
+                ctx.Request.Headers.ReturnsForAnyArgs(HeaderDictionary()) |> ignore
-                Expect.isNone ctx.Request.Headers.HxPrompt "There should not have been a header returned"
+                Expect.isNone ctx.Request.Headers.HxPreloaded "There should not have been a header returned"
             }
-            test "succeeds when the header is present" {
+            test "succeeds when the header is present and true" {
-                let ctx = Substitute.For<HttpContext> ()
+                let ctx = Substitute.For<HttpContext>()
-                let dic = HeaderDictionary ()
+                let dic = HeaderDictionary()
-                dic.Add ("HX-Prompt", "of course")
+                dic.Add("HX-Preloaded", "true")
                 ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
-                Expect.isSome ctx.Request.Headers.HxPrompt "There should be a header present"
+                Expect.isSome ctx.Request.Headers.HxPreloaded "There should be a header present"
-                Expect.equal ctx.Request.Headers.HxPrompt.Value "of course" "The header value was incorrect"
+                Expect.isTrue ctx.Request.Headers.HxPreloaded.Value "The header should have been true"
+            }
+            // This is not a condition fired by the extension; the header will be either absent or true
+            test "succeeds when the header is present and false" {
+                let ctx = Substitute.For<HttpContext>()
+                let dic = HeaderDictionary()
+                dic.Add("HX-Preloaded", "false")
+                ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
+                Expect.isSome ctx.Request.Headers.HxPreloaded "There should be a header present"
+                Expect.isFalse ctx.Request.Headers.HxPreloaded.Value "The header should have been false"
             }
         ]
         testList "HxRequest" [
             test "succeeds when the header is not present" {
-                let ctx = Substitute.For<HttpContext> ()
+                let ctx = Substitute.For<HttpContext>()
-                ctx.Request.Headers.ReturnsForAnyArgs (HeaderDictionary ()) |> ignore
+                ctx.Request.Headers.ReturnsForAnyArgs(HeaderDictionary()) |> ignore
                 Expect.isNone ctx.Request.Headers.HxRequest "There should not have been a header returned"
             }
             test "succeeds when the header is present and true" {
-                let ctx = Substitute.For<HttpContext> ()
+                let ctx = Substitute.For<HttpContext>()
-                let dic = HeaderDictionary ()
+                let dic = HeaderDictionary()
-                dic.Add ("HX-Request", "true")
+                dic.Add("HX-Request", "true")
                 ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
                 Expect.isSome ctx.Request.Headers.HxRequest "There should be a header present"
                 Expect.isTrue ctx.Request.Headers.HxRequest.Value "The header should have been true"
             }
             test "succeeds when the header is present and false" {
-                let ctx = Substitute.For<HttpContext> ()
+                let ctx = Substitute.For<HttpContext>()
-                let dic = HeaderDictionary ()
+                let dic = HeaderDictionary()
-                dic.Add ("HX-Request", "false")
+                dic.Add("HX-Request", "false")
                 ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
                 Expect.isSome ctx.Request.Headers.HxRequest "There should be a header present"
                 Expect.isFalse ctx.Request.Headers.HxRequest.Value "The header should have been false"
             }
         ]
+        testList "HxRequestId" [
+            test "succeeds when the header is not present" {
+                let ctx = Substitute.For<HttpContext>()
+                ctx.Request.Headers.ReturnsForAnyArgs(HeaderDictionary()) |> ignore
+                Expect.isNone ctx.Request.Headers.HxRequestId "There should not have been a header returned"
+            }
+            test "succeeds when the header is present" {
+                let ctx = Substitute.For<HttpContext>()
+                let dic = HeaderDictionary()
+                dic.Add("HX-Request-ID", "abcd1234")
+                ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
+                Expect.isSome ctx.Request.Headers.HxRequestId "There should be a header present"
+                Expect.equal ctx.Request.Headers.HxRequestId.Value "abcd1234" "The header value was incorrect"
+            }
+        ]
+        testList "HxRequestType" [
+            test "succeeds when the header is not present" {
+                let ctx = Substitute.For<HttpContext>()
+                ctx.Request.Headers.ReturnsForAnyArgs(HeaderDictionary()) |> ignore
+                Expect.isNone ctx.Request.Headers.HxRequestType "There should not have been a header returned"
+            }
+            test "succeeds when the header is invalid" {
+                let ctx = Substitute.For<HttpContext>()
+                let dic = HeaderDictionary()
+                dic.Add("HX-Request-Type", "relaxed")
+                ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
+                Expect.isNone ctx.Request.Headers.HxRequestType "There should not have been a header returned"
+            }
+            test "succeeds for a full request" {
+                let ctx = Substitute.For<HttpContext>()
+                let dic = HeaderDictionary()
+                dic.Add("HX-Request-Type", "full")
+                ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
+                Expect.isSome ctx.Request.Headers.HxRequestType "There have been a header returned"
+                Expect.equal ctx.Request.Headers.HxRequestType.Value HxFullRequest "The header value is incorrect"
+            }
+            test "succeeds for a partial request" {
+                let ctx = Substitute.For<HttpContext>()
+                let dic = HeaderDictionary()
+                dic.Add("HX-Request-Type", "partial")
+                ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
+                Expect.isSome ctx.Request.Headers.HxRequestType "There have been a header returned"
+                Expect.equal ctx.Request.Headers.HxRequestType.Value HxPartialRequest "The header value is incorrect"
+            }
+        ]
+        testList "HxSource" [
+            test "succeeds when the header is not present" {
+                let ctx = Substitute.For<HttpContext>()
+                ctx.Request.Headers.ReturnsForAnyArgs(HeaderDictionary()) |> ignore
+                Expect.isNone ctx.Request.Headers.HxSource "There should not have been a header returned"
+            }
+            test "succeeds when the header is present and both parts exist" {
+                let ctx = Substitute.For<HttpContext>()
+                let dic = HeaderDictionary()
+                dic.Add("HX-Source", "button#theId")
+                ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
+                let hdr = ctx.Request.Headers.HxSource
+                Expect.isSome hdr "There should be a header present"
+                Expect.equal (fst hdr.Value) "button" "The source tag was incorrect"
+                Expect.isSome (snd hdr.Value) "There should be a source ID present"
+                Expect.equal (snd hdr.Value).Value "theId" "The source ID was incorrect"
+            }
+            test "succeeds when the header is present and ID is blank" {
+                let ctx = Substitute.For<HttpContext>()
+                let dic = HeaderDictionary()
+                dic.Add("HX-Source", "a#")
+                ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
+                let hdr = ctx.Request.Headers.HxSource
+                Expect.isSome hdr "There should be a header present"
+                Expect.equal (fst hdr.Value) "a" "The source tag was incorrect"
+                Expect.isNone (snd hdr.Value) "There should not be a source ID present"
+            }
+            test "succeeds when the header is present and ID is missing" {
+                let ctx = Substitute.For<HttpContext>()
+                let dic = HeaderDictionary()
+                dic.Add("HX-Source", "form")
+                ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
+                let hdr = ctx.Request.Headers.HxSource
+                Expect.isSome hdr "There should be a header present"
+                Expect.equal (fst hdr.Value) "form" "The source tag was incorrect"
+                Expect.isNone (snd hdr.Value) "There should not be a source ID present"
+            }
+        ]
         testList "HxTarget" [
             test "succeeds when the header is not present" {
-                let ctx = Substitute.For<HttpContext> ()
+                let ctx = Substitute.For<HttpContext>()
-                ctx.Request.Headers.ReturnsForAnyArgs (HeaderDictionary ()) |> ignore
+                ctx.Request.Headers.ReturnsForAnyArgs(HeaderDictionary()) |> ignore
                 Expect.isNone ctx.Request.Headers.HxTarget "There should not have been a header returned"
             }
-            test "succeeds when the header is present" {
+            test "succeeds when the header is present and both parts exist" {
-                let ctx = Substitute.For<HttpContext> ()
+                let ctx = Substitute.For<HttpContext>()
-                let dic = HeaderDictionary ()
+                let dic = HeaderDictionary()
-                dic.Add ("HX-Target", "#leItem")
+                dic.Add("HX-Target", "div#leItem")
                 ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
-                Expect.isSome ctx.Request.Headers.HxTarget "There should be a header present"
+                let hdr = ctx.Request.Headers.HxTarget
-                Expect.equal ctx.Request.Headers.HxTarget.Value "#leItem" "The header value was incorrect"
+                Expect.isSome hdr "There should be a header present"
+                Expect.equal (fst hdr.Value) "div" "The target tag was incorrect" 
+                Expect.isSome (snd hdr.Value) "There should be a target ID present"
+                Expect.equal (snd hdr.Value).Value "leItem" "The header value was incorrect"
             }
-        ]
+            test "succeeds when the header is present and ID is blank" {
-        testList "HxTrigger" [
+                let ctx = Substitute.For<HttpContext>()
-            test "succeeds when the header is not present" {
+                let dic = HeaderDictionary()
-                let ctx = Substitute.For<HttpContext> ()
+                dic.Add("HX-Target", "span#")
-                ctx.Request.Headers.ReturnsForAnyArgs (HeaderDictionary ()) |> ignore
-                Expect.isNone ctx.Request.Headers.HxTrigger "There should not have been a header returned"
-            }
-            test "succeeds when the header is present" {
-                let ctx = Substitute.For<HttpContext> ()
-                let dic = HeaderDictionary ()
-                dic.Add ("HX-Trigger", "#trig")
                 ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
-                Expect.isSome ctx.Request.Headers.HxTrigger "There should be a header present"
+                let hdr = ctx.Request.Headers.HxTarget
-                Expect.equal ctx.Request.Headers.HxTrigger.Value "#trig" "The header value was incorrect"
+                Expect.isSome hdr "There should be a header present"
+                Expect.equal (fst hdr.Value) "span" "The target tag was incorrect" 
+                Expect.isNone (snd hdr.Value) "There should not be a target ID present"
             }
-        ]
+            test "succeeds when the header is present and ID is missing" {
-        testList "HxTriggerName" [
+                let ctx = Substitute.For<HttpContext>()
-            test "succeeds when the header is not present" {
+                let dic = HeaderDictionary()
-                let ctx = Substitute.For<HttpContext> ()
+                dic.Add("HX-Target", "aside")
-                ctx.Request.Headers.ReturnsForAnyArgs (HeaderDictionary ()) |> ignore
-                Expect.isNone ctx.Request.Headers.HxTriggerName "There should not have been a header returned"
-            }
-            test "HxTriggerName succeeds when the header is present" {
-                let ctx = Substitute.For<HttpContext> ()
-                let dic = HeaderDictionary ()
-                dic.Add ("HX-Trigger-Name", "click")
                 ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
-                Expect.isSome ctx.Request.Headers.HxTriggerName "There should be a header present"
+                let hdr = ctx.Request.Headers.HxTarget
-                Expect.equal ctx.Request.Headers.HxTriggerName.Value "click" "The header value was incorrect"
+                Expect.isSome hdr "There should be a header present"
+                Expect.equal (fst hdr.Value) "aside" "The target tag was incorrect" 
+                Expect.isNone (snd hdr.Value) "There should not be a target ID present"
             }
         ]
     ]
@@ -163,36 +248,36 @@ let reqExtensions =
     testList "HttpRequestExtensions" [
         testList "IsHtmx" [
             test "succeeds when request is not from htmx" {
-                let ctx = Substitute.For<HttpContext> ()
+                let ctx = Substitute.For<HttpContext>()
-                ctx.Request.Headers.ReturnsForAnyArgs (HeaderDictionary ()) |> ignore
+                ctx.Request.Headers.ReturnsForAnyArgs(HeaderDictionary()) |> ignore
                 Expect.isFalse ctx.Request.IsHtmx "The request should not be an htmx request"
             }    
             test "succeeds when request is from htmx" {
-                let ctx = Substitute.For<HttpContext> ()
+                let ctx = Substitute.For<HttpContext>()
-                let dic = HeaderDictionary ()
+                let dic = HeaderDictionary()
-                dic.Add ("HX-Request", "true")
+                dic.Add("HX-Request", "true")
                 ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
                 Expect.isTrue ctx.Request.IsHtmx "The request should have been an htmx request"
             }
         ]
         testList "IsHtmxRefresh" [
             test "succeeds when request is not from htmx" {
-                let ctx = Substitute.For<HttpContext> ()
+                let ctx = Substitute.For<HttpContext>()
-                ctx.Request.Headers.ReturnsForAnyArgs (HeaderDictionary ()) |> ignore
+                ctx.Request.Headers.ReturnsForAnyArgs(HeaderDictionary()) |> ignore
                 Expect.isFalse ctx.Request.IsHtmxRefresh "The request should not have been an htmx refresh"
             }
             test "succeeds when request is from htmx, but not a refresh" {
-                let ctx = Substitute.For<HttpContext> ()
+                let ctx = Substitute.For<HttpContext>()
-                let dic = HeaderDictionary ()
+                let dic = HeaderDictionary()
-                dic.Add ("HX-Request", "true")
+                dic.Add("HX-Request", "true")
                 ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
                 Expect.isFalse ctx.Request.IsHtmxRefresh "The request should not have been an htmx refresh"
             }
             test "IsHtmxRefresh succeeds when request is from htmx and is a refresh" {
-                let ctx = Substitute.For<HttpContext> ()
+                let ctx = Substitute.For<HttpContext>()
-                let dic = HeaderDictionary ()
+                let dic = HeaderDictionary()
-                dic.Add ("HX-Request", "true")
+                dic.Add("HX-Request", "true")
-                dic.Add ("HX-History-Restore-Request", "true")
+                dic.Add("HX-History-Restore-Request", "true")
                 ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
                 Expect.isTrue ctx.Request.IsHtmxRefresh "The request should have been an htmx refresh"
             }
@@ -202,30 +287,46 @@ let reqExtensions =
 open System.Threading.Tasks
 
 /// Dummy "next" parameter to get the pipeline to execute/terminate
-let next (ctx : HttpContext) = Task.FromResult (Some ctx)
+let next (ctx: HttpContext) = Task.FromResult(Some ctx)
         
 /// Tests for the HttpHandler functions provided in the Handlers module
 let handlers =
     testList "HandlerTests" [
+        testTask "withHxDownload succeeds" {
+            let ctx = Substitute.For<HttpContext>()
+            let dic = HeaderDictionary()
+            ctx.Response.Headers.ReturnsForAnyArgs dic |> ignore
+            let! _ = withHxDownload "/files/stuff.pdf" next ctx
+            Expect.isTrue (dic.ContainsKey "HX-Download") "The HX-Download header should be present"
+            Expect.equal dic["HX-Download"].[0] "/files/stuff.pdf" "The HX-Download value was incorrect"
+        }
+        testTask "withHxLocation succeeds" {
+            let ctx = Substitute.For<HttpContext>()
+            let dic = HeaderDictionary()
+            ctx.Response.Headers.ReturnsForAnyArgs dic |> ignore
+            let! _ = withHxLocation "/pagina-otro.html" next ctx
+            Expect.isTrue (dic.ContainsKey "HX-Location") "The HX-Location header should be present"
+            Expect.equal dic["HX-Location"].[0] "/pagina-otro.html" "The HX-Location value was incorrect"
+        }
         testTask "withHxPushUrl succeeds" {
-            let ctx = Substitute.For<HttpContext> ()
+            let ctx = Substitute.For<HttpContext>()
-            let dic = HeaderDictionary ()
+            let dic = HeaderDictionary()
             ctx.Response.Headers.ReturnsForAnyArgs dic |> ignore
             let! _ = withHxPushUrl "/a-new-url" next ctx
             Expect.isTrue (dic.ContainsKey "HX-Push-Url") "The HX-Push-Url header should be present"
             Expect.equal dic["HX-Push-Url"].[0] "/a-new-url" "The HX-Push-Url value was incorrect"
         }
         testTask "withHxNoPushUrl succeeds" {
-            let ctx = Substitute.For<HttpContext> ()
+            let ctx = Substitute.For<HttpContext>()
-            let dic = HeaderDictionary ()
+            let dic = HeaderDictionary()
             ctx.Response.Headers.ReturnsForAnyArgs dic |> ignore
             let! _ = withHxNoPushUrl next ctx
             Expect.isTrue (dic.ContainsKey "HX-Push-Url") "The HX-Push-Url header should be present"
             Expect.equal dic["HX-Push-Url"].[0] "false" "The HX-Push-Url value was incorrect"
         }
         testTask "withHxRedirect succeeds" {
-            let ctx = Substitute.For<HttpContext> ()
+            let ctx = Substitute.For<HttpContext>()
-            let dic = HeaderDictionary ()
+            let dic = HeaderDictionary()
             ctx.Response.Headers.ReturnsForAnyArgs dic |> ignore
             let! _ = withHxRedirect "/somewhere-else" next ctx
             Expect.isTrue (dic.ContainsKey "HX-Redirect") "The HX-Redirect header should be present"
@@ -233,16 +334,16 @@ let handlers =
         }
         testList "withHxRefresh" [
             testTask "succeeds when set to true" {
-                let ctx = Substitute.For<HttpContext> ()
+                let ctx = Substitute.For<HttpContext>()
-                let dic = HeaderDictionary ()
+                let dic = HeaderDictionary()
                 ctx.Response.Headers.ReturnsForAnyArgs dic |> ignore
                 let! _ = withHxRefresh true next ctx
                 Expect.isTrue (dic.ContainsKey "HX-Refresh") "The HX-Refresh header should be present"
                 Expect.equal dic["HX-Refresh"].[0] "true" "The HX-Refresh value was incorrect"
             }
             testTask "succeeds when set to false" {
-                let ctx = Substitute.For<HttpContext> ()
+                let ctx = Substitute.For<HttpContext>()
-                let dic = HeaderDictionary ()
+                let dic = HeaderDictionary()
                 ctx.Response.Headers.ReturnsForAnyArgs dic |> ignore
                 let! _ = withHxRefresh false next ctx
                 Expect.isTrue (dic.ContainsKey "HX-Refresh") "The HX-Refresh header should be present"
@@ -250,101 +351,160 @@ let handlers =
             }
         ]
         testTask "withHxReplaceUrl succeeds" {
-            let ctx = Substitute.For<HttpContext> ()
+            let ctx = Substitute.For<HttpContext>()
-            let dic = HeaderDictionary ()
+            let dic = HeaderDictionary()
             ctx.Response.Headers.ReturnsForAnyArgs dic |> ignore
             let! _ = withHxReplaceUrl "/a-substitute-url" next ctx
             Expect.isTrue (dic.ContainsKey "HX-Replace-Url") "The HX-Replace-Url header should be present"
             Expect.equal dic["HX-Replace-Url"].[0] "/a-substitute-url" "The HX-Replace-Url value was incorrect"
         }
         testTask "withHxNoReplaceUrl succeeds" {
-            let ctx = Substitute.For<HttpContext> ()
+            let ctx = Substitute.For<HttpContext>()
-            let dic = HeaderDictionary ()
+            let dic = HeaderDictionary()
             ctx.Response.Headers.ReturnsForAnyArgs dic |> ignore
             let! _ = withHxNoReplaceUrl next ctx
             Expect.isTrue (dic.ContainsKey "HX-Replace-Url") "The HX-Replace-Url header should be present"
             Expect.equal dic["HX-Replace-Url"].[0] "false" "The HX-Replace-Url value was incorrect"
         }
         testTask "withHxReselect succeeds" {
-            let ctx = Substitute.For<HttpContext> ()
+            let ctx = Substitute.For<HttpContext>()
-            let dic = HeaderDictionary ()
+            let dic = HeaderDictionary()
             ctx.Response.Headers.ReturnsForAnyArgs dic |> ignore
             let! _ = withHxReselect "#test" next ctx
             Expect.isTrue (dic.ContainsKey "HX-Reselect") "The HX-Reselect header should be present"
             Expect.equal dic["HX-Reselect"].[0] "#test" "The HX-Reselect value was incorrect"
         } 
         testTask "withHxReswap succeeds" {
-            let ctx = Substitute.For<HttpContext> ()
+            let ctx = Substitute.For<HttpContext>()
-            let dic = HeaderDictionary ()
+            let dic = HeaderDictionary()
             ctx.Response.Headers.ReturnsForAnyArgs dic |> ignore
             let! _ = withHxReswap HxSwap.BeforeEnd next ctx
             Expect.isTrue (dic.ContainsKey "HX-Reswap") "The HX-Reswap header should be present"
             Expect.equal dic["HX-Reswap"].[0] HxSwap.BeforeEnd "The HX-Reswap value was incorrect"
         } 
         testTask "withHxRetarget succeeds" {
-            let ctx = Substitute.For<HttpContext> ()
+            let ctx = Substitute.For<HttpContext>()
-            let dic = HeaderDictionary ()
+            let dic = HeaderDictionary()
             ctx.Response.Headers.ReturnsForAnyArgs dic |> ignore
             let! _ = withHxRetarget "#somewhereElse" next ctx
             Expect.isTrue (dic.ContainsKey "HX-Retarget") "The HX-Retarget header should be present"
             Expect.equal dic["HX-Retarget"].[0] "#somewhereElse" "The HX-Retarget value was incorrect"
         }
         testTask "withHxTrigger succeeds" {
-            let ctx = Substitute.For<HttpContext> ()
+            let ctx = Substitute.For<HttpContext>()
-            let dic = HeaderDictionary ()
+            let dic = HeaderDictionary()
             ctx.Response.Headers.ReturnsForAnyArgs dic |> ignore
             let! _ = withHxTrigger "doSomething" next ctx
             Expect.isTrue (dic.ContainsKey "HX-Trigger") "The HX-Trigger header should be present"
             Expect.equal dic["HX-Trigger"].[0] "doSomething" "The HX-Trigger value was incorrect"
         }
         testTask "withHxTriggerMany succeeds" {
-            let ctx = Substitute.For<HttpContext> ()
+            let ctx = Substitute.For<HttpContext>()
-            let dic = HeaderDictionary ()
+            let dic = HeaderDictionary()
             ctx.Response.Headers.ReturnsForAnyArgs dic |> ignore
             let! _ = withHxTriggerMany [ "blah", "foo"; "bleh", "bar" ] next ctx
             Expect.isTrue (dic.ContainsKey "HX-Trigger") "The HX-Trigger header should be present"
             Expect.equal
                 dic["HX-Trigger"].[0] """{ "blah": "foo", "bleh": "bar" }""" "The HX-Trigger value was incorrect"
         }
+    ]
+
+/// Tests for the HtmxScript module
+let script =
+    testList "HtmxScript" [
+        test "local generates correct link" {
+            Expect.equal
+                (string HtmxScript.local)
+                $"""<script src="/_content/Giraffe.Htmx.Common/htmx.min.js?ver={HtmxVersion}"></script>"""
+                "htmx script link is incorrect"
+        }
+    ]
+
+#nowarn 44 // Obsolete items still have tests
+let dictExtensionsObs =
+    testList "IHeaderDictionaryExtensions (Obsolete)" [
+        testList "HxPrompt" [
+            test "succeeds when the header is not present" {
+                let ctx = Substitute.For<HttpContext>()
+                ctx.Request.Headers.ReturnsForAnyArgs(HeaderDictionary()) |> ignore
+                Expect.isNone ctx.Request.Headers.HxPrompt "There should not have been a header returned"
+            }
+            test "succeeds when the header is present" {
+                let ctx = Substitute.For<HttpContext>()
+                let dic = HeaderDictionary()
+                dic.Add("HX-Prompt", "of course")
+                ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
+                Expect.isSome ctx.Request.Headers.HxPrompt "There should be a header present"
+                Expect.equal ctx.Request.Headers.HxPrompt.Value "of course" "The header value was incorrect"
+            }
+        ]
+        testList "HxTrigger" [
+            test "succeeds when the header is not present" {
+                let ctx = Substitute.For<HttpContext>()
+                ctx.Request.Headers.ReturnsForAnyArgs (HeaderDictionary ()) |> ignore
+                Expect.isNone ctx.Request.Headers.HxTrigger "There should not have been a header returned"
+            }
+            test "succeeds when the header is present" {
+                let ctx = Substitute.For<HttpContext>()
+                let dic = HeaderDictionary()
+                dic.Add("HX-Trigger", "#trig")
+                ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
+                Expect.isSome ctx.Request.Headers.HxTrigger "There should be a header present"
+                Expect.equal ctx.Request.Headers.HxTrigger.Value "#trig" "The header value was incorrect"
+            }
+        ]
+        testList "HxTriggerName" [
+            test "succeeds when the header is not present" {
+                let ctx = Substitute.For<HttpContext>()
+                ctx.Request.Headers.ReturnsForAnyArgs(HeaderDictionary()) |> ignore
+                Expect.isNone ctx.Request.Headers.HxTriggerName "There should not have been a header returned"
+            }
+            test "HxTriggerName succeeds when the header is present" {
+                let ctx = Substitute.For<HttpContext>()
+                let dic = HeaderDictionary()
+                dic.Add("HX-Trigger-Name", "click")
+                ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
+                Expect.isSome ctx.Request.Headers.HxTriggerName "There should be a header present"
+                Expect.equal ctx.Request.Headers.HxTriggerName.Value "click" "The header value was incorrect"
+            }
+        ]
+    ]
+
+let handlerObs =
+    testList "Handler Tests (Obsolete)" [
         testTask "withHxTriggerAfterSettle succeeds" {
-            let ctx = Substitute.For<HttpContext> ()
+            let ctx = Substitute.For<HttpContext>()
-            let dic = HeaderDictionary ()
+            let dic = HeaderDictionary()
             ctx.Response.Headers.ReturnsForAnyArgs dic |> ignore
             let! _ = withHxTriggerAfterSettle "byTheWay" next ctx
-            Expect.isTrue
+            Expect.isTrue (dic.ContainsKey "HX-Trigger") "The HX-Trigger header should be present"
-                (dic.ContainsKey "HX-Trigger-After-Settle") "The HX-Trigger-After-Settle header should be present"
+            Expect.equal dic["HX-Trigger"].[0] "byTheWay" "The HX-Trigger value was incorrect"
-            Expect.equal dic["HX-Trigger-After-Settle"].[0] "byTheWay" "The HX-Trigger-After-Settle value was incorrect"
         }
         testTask "withHxTriggerManyAfterSettle succeeds" {
-            let ctx = Substitute.For<HttpContext> ()
+            let ctx = Substitute.For<HttpContext>()
-            let dic = HeaderDictionary ()
+            let dic = HeaderDictionary()
             ctx.Response.Headers.ReturnsForAnyArgs dic |> ignore
             let! _ = withHxTriggerManyAfterSettle [ "oof", "ouch"; "hmm", "uh" ] next ctx
-            Expect.isTrue
+            Expect.isTrue (dic.ContainsKey "HX-Trigger") "The HX-Trigger header should be present"
-                (dic.ContainsKey "HX-Trigger-After-Settle") "The HX-Trigger-After-Settle header should be present"
+            Expect.equal dic["HX-Trigger"].[0] """{ "oof": "ouch", "hmm": "uh" }""" "The HX-Trigger value was incorrect"
-            Expect.equal
-                dic["HX-Trigger-After-Settle"].[0] """{ "oof": "ouch", "hmm": "uh" }"""
-                "The HX-Trigger-After-Settle value was incorrect"
         }
         testTask "withHxTriggerAfterSwap succeeds" {
-            let ctx = Substitute.For<HttpContext> ()
+            let ctx = Substitute.For<HttpContext>()
-            let dic = HeaderDictionary ()
+            let dic = HeaderDictionary()
             ctx.Response.Headers.ReturnsForAnyArgs dic |> ignore
             let! _ = withHxTriggerAfterSwap "justASec" next ctx
-            Expect.isTrue (dic.ContainsKey "HX-Trigger-After-Swap") "The HX-Trigger-After-Swap header should be present"
+            Expect.isTrue (dic.ContainsKey "HX-Trigger") "The HX-Trigger header should be present"
-            Expect.equal dic["HX-Trigger-After-Swap"].[0] "justASec" "The HX-Trigger-After-Swap value was incorrect"
+            Expect.equal dic["HX-Trigger"].[0] "justASec" "The HX-Trigger value was incorrect"
         }
         testTask "withHxTriggerManyAfterSwap succeeds" {
-            let ctx = Substitute.For<HttpContext> ()
+            let ctx = Substitute.For<HttpContext>()
-            let dic = HeaderDictionary ()
+            let dic = HeaderDictionary()
             ctx.Response.Headers.ReturnsForAnyArgs dic |> ignore
             let! _ = withHxTriggerManyAfterSwap [ "this", "1"; "that", "2" ] next ctx
-            Expect.isTrue (dic.ContainsKey "HX-Trigger-After-Swap") "The HX-Trigger-After-Swap header should be present"
+            Expect.isTrue (dic.ContainsKey "HX-Trigger") "The HX-Trigger header should be present"
-            Expect.equal
+            Expect.equal dic["HX-Trigger"].[0] """{ "this": "1", "that": "2" }""" "The HX-Trigger value was incorrect"
-                dic["HX-Trigger-After-Swap"].[0] """{ "this": "1", "that": "2" }"""
-                "The HX-Trigger-After-Swap value was incorrect"
         }
     ]
 
 /// All tests for this module
-let allTests = testList "Htmx" [ dictExtensions; reqExtensions; handlers ]
+let allTests = testList "Htmx" [ dictExtensions; reqExtensions; handlers; script; dictExtensionsObs; handlerObs ]

src/Tests/Program.fs

@@ -1,6 +1,6 @@
 open Expecto
 
-let allTests = testList "Giraffe" [ Common.allTests; Htmx.allTests; ViewEngine.allTests ]
+let allTests = testList "Giraffe" [ Common.allTests; Htmx.allTests; ViewEngine.allTests; ViewEngineMax.allTests ]
 
 [<EntryPoint>]
-let main args = runTestsWithArgs defaultConfig args allTests
+let main args = runTestsWithCLIArgs [] args allTests

src/Tests/Tests.fsproj

@@ -8,6 +8,7 @@
     <Compile Include="Common.fs" />
     <Compile Include="Htmx.fs" />
     <Compile Include="ViewEngine.fs" />
+    <Compile Include="ViewEngineMax.fs" />
     <Compile Include="Program.fs" />
   </ItemGroup>
 
@@ -18,8 +19,9 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Expecto" Version="9.0.4" />
+    <PackageReference Include="Expecto" />
-    <PackageReference Include="NSubstitute" Version="5.0.0" />
+    <PackageReference Include="NSubstitute" />
+    <PackageReference Include="FSharp.Core" />
   </ItemGroup>
 
 </Project>

src/Tests/ViewEngineMax.fs

@@ -0,0 +1,335 @@
+module ViewEngineMax
+
+open Expecto
+open Giraffe.ViewEngine.Htmax
+
+/// Tests for the HxBrowserIndicatorConfigItem type
+let hxBrowserIndicatorConfigItem =
+    testList "HxBrowserIndicatorConfigItem" [
+        testList "ToHcon" [
+            test "succeeds for BoostBrowserIndicator" {
+                Expect.equal
+                    ((BoostBrowserIndicator false).ToHcon())
+                    "boostBrowserIndicator:false"
+                    "The HCON value was incorrect"
+            }
+        ]
+    ]
+
+/// Tests for the HxPreloadConfigItem type
+let hxPreloadConfigItem =
+    testList "HxPreloadConfigItem" [
+        testList "ToHcon" [
+            test "succeeds for AutoBoost" {
+                Expect.equal ((AutoBoost false).ToHcon()) "autoBoost:false" "The HCON value was incorrect"
+            }
+            test "succeeds for BoostEvent" {
+                Expect.equal ((BoostEvent "mouseover").ToHcon()) "boostEvent:mouseover" "The HCON value was incorrect"
+            }
+            test "succeeds for BoostTimeout" {
+                Expect.equal ((BoostTimeout 30_000).ToHcon()) "boostTimeout:30000" "The HCON value was incorrect"
+            }
+        ]
+    ]
+
+/// Tests for the HxSseWsConfigItem type
+let hxSseWsConfigItem =
+    testList "HxSseWsConfigItem" [
+        testList "ToHcon" [
+            test "succeeds for Reconnect" {
+                Expect.equal ((Reconnect true).ToHcon()) "reconnect:true" "The HCON value was incorrect"
+            }
+            testList "ReconnectDelay" [
+                test "succeeds for numeric value" {
+                    Expect.equal ((ReconnectDelay "3000").ToHcon()) "reconnectDelay:3000" "The HCON value was incorrect"
+                }
+                test "succeeds for value with units" {
+                    Expect.equal ((ReconnectDelay "3s").ToHcon()) "reconnectDelay:3s" "The HCON value was incorrect"
+                }
+            ]
+            testList "ReconnectMaxDelay" [
+                test "succeeds for numeric value" {
+                    Expect.equal
+                        ((ReconnectMaxDelay "30000").ToHcon()) "reconnectMaxDelay:30000" "The HCON value was incorrect"
+                }
+                test "succeeds for value with units" {
+                    Expect.equal
+                        ((ReconnectMaxDelay "50s").ToHcon()) "reconnectMaxDelay:50s" "The HCON value was incorrect"
+                }
+            ]
+            testList "ReconnectMaxAttempts" [
+                test "succeeds for negative 1" {
+                    Expect.equal
+                        ((ReconnectMaxAttempts -1).ToHcon())
+                        "reconnectMaxAttempts:Infinity"
+                        "The HCON value was incorrect"
+                }
+                test "succeeds for zero" {
+                    Expect.equal
+                        ((ReconnectMaxAttempts 0).ToHcon()) "reconnectMaxAttempts:0" "The HCON value was incorrect"
+                }
+                test "succeeds for positive number" {
+                    Expect.equal
+                        ((ReconnectMaxAttempts 7).ToHcon()) "reconnectMaxAttempts:7" "The HCON value was incorrect"
+                }
+            ]
+            test "succeeds for ReconnectJitter" {
+                Expect.equal ((ReconnectJitter 0.7).ToHcon()) "reconnectJitter:0.7" "The HCON value was incorrect"
+            }
+            test "succeeds for PauseOnBackground" {
+                Expect.equal
+                    ((PauseOnBackground false).ToHcon()) "pauseOnBackground:false" "The HCON value was incorrect"
+            }
+            test "succeeds for PendingRequestTtl" {
+                Expect.equal ((PendingRequestTtl 5000).ToHcon()) "pendingRequestTTL:5000" "The HCON value was incorrect"
+            }
+        ]
+    ]
+
+/// Tests for the HxConfig module
+let hxConfig =
+    testList "HxConfig" [
+        test "hxBrowserIndicatorConfig succeeds" {
+            Expect.equal
+                (hxBrowserIndicatorConfig [ BoostBrowserIndicator true ])
+                "browser-indicator.boostBrowserIndicator:true"
+                "Config settings not correct"
+        }
+        test "hxPreloadConfig succeeds" {
+            Expect.equal
+                (hxPreloadConfig [ AutoBoost true; BoostTimeout 3_000 ])
+                "preload.autoBoost:true preload.boostTimeout:3000"
+                "Config settings not correct"
+        }
+        test "hxSseConfig succeeds" {
+            Expect.equal
+                (hxSseConfig [ ReconnectDelay "5s"; PauseOnBackground false ])
+                "sse.reconnectDelay:5s sse.pauseOnBackground:false"
+                "Config settings not correct"
+        }
+        test "hxWsConfig succeeds" {
+            Expect.equal
+                (hxWsConfig [ Reconnect false; PendingRequestTtl 40_000 ])
+                "ws.reconnect:false ws.pendingRequestTTL:40000"
+                "Config settings not correct"
+        }
+    ]
+    
+/// Tests for the HxEvent module
+let hxEvent =
+    testList "HxEvent" [
+        testList "AfterSseConnection" [
+            test "ToString succeeds" {
+                Expect.equal
+                    (string AfterSseConnection) "afterSseConnection" "AfterSseConnection event name not correct"
+            }
+            test "ToHxOnString succeeds" {
+                Expect.equal
+                    (AfterSseConnection.ToHxOnString())
+                    "after:sse:connection"
+                    "AfterSseConnection hx-on event name not correct"
+            }
+        ]
+        testList "AfterSseMessage" [
+            test "ToString succeeds" {
+                Expect.equal (string AfterSseMessage) "afterSseMessage" "AfterSseMessage event name not correct"
+            }
+            test "ToHxOnString succeeds" {
+                Expect.equal
+                    (AfterSseMessage.ToHxOnString()) "after:sse:message" "AfterSseMessage hx-on event name not correct"
+            }
+        ]
+        testList "AfterWsConnection" [
+            test "ToString succeeds" {
+                Expect.equal
+                    (string AfterWsConnection) "afterWsConnection" "AfterWsConnection event name not correct"
+            }
+            test "ToHxOnString succeeds" {
+                Expect.equal
+                    (AfterWsConnection.ToHxOnString())
+                    "after:ws:connection"
+                    "AfterWsConnection hx-on event name not correct"
+            }
+        ]
+        testList "AfterWsMessage" [
+            test "ToString succeeds" {
+                Expect.equal (string AfterWsMessage) "afterWsMessage" "AfterWsMessage event name not correct"
+            }
+            test "ToHxOnString succeeds" {
+                Expect.equal
+                    (AfterWsMessage.ToHxOnString()) "after:ws:message" "AfterWsMessage hx-on event name not correct"
+            }
+        ]
+        testList "AfterWsRequest" [
+            test "ToString succeeds" {
+                Expect.equal (string AfterWsRequest) "afterWsRequest" "AfterWsRequest event name not correct"
+            }
+            test "ToHxOnString succeeds" {
+                Expect.equal
+                    (AfterWsRequest.ToHxOnString()) "after:ws:request" "AfterWsRequest hx-on event name not correct"
+            }
+        ]
+        testList "BeforeSseConnection" [
+            test "ToString succeeds" {
+                Expect.equal
+                    (string BeforeSseConnection) "beforeSseConnection" "BeforeSseConnection event name not correct"
+            }
+            test "ToHxOnString succeeds" {
+                Expect.equal
+                    (BeforeSseConnection.ToHxOnString())
+                    "before:sse:connection"
+                    "BeforeSseConnection hx-on event name not correct"
+            }
+        ]
+        testList "BeforeSseMessage" [
+            test "ToString succeeds" {
+                Expect.equal (string BeforeSseMessage) "beforeSseMessage" "BeforeSseMessage event name not correct"
+            }
+            test "ToHxOnString succeeds" {
+                Expect.equal
+                    (BeforeSseMessage.ToHxOnString())
+                    "before:sse:message"
+                    "BeforeSseMessage hx-on event name not correct"
+            }
+        ]
+        testList "BeforeWsConnection" [
+            test "ToString succeeds" {
+                Expect.equal
+                    (string BeforeWsConnection) "beforeWsConnection" "BeforeWsConnection event name not correct"
+            }
+            test "ToHxOnString succeeds" {
+                Expect.equal
+                    (BeforeWsConnection.ToHxOnString())
+                    "before:ws:connection"
+                    "BeforeWsConnection hx-on event name not correct"
+            }
+        ]
+        testList "BeforeWsMessage" [
+            test "ToString succeeds" {
+                Expect.equal (string BeforeWsMessage) "beforeWsMessage" "BeforeWsMessage event name not correct"
+            }
+            test "ToHxOnString succeeds" {
+                Expect.equal
+                    (BeforeWsMessage.ToHxOnString()) "before:ws:message" "BeforeWsMessage hx-on event name not correct"
+            }
+        ]
+        testList "BeforeWsRequest" [
+            test "ToString succeeds" {
+                Expect.equal (string BeforeWsRequest) "beforeWsRequest" "BeforeWsRequest event name not correct"
+            }
+            test "ToHxOnString succeeds" {
+                Expect.equal
+                    (BeforeWsRequest.ToHxOnString()) "before:ws:request" "BeforeWsRequest hx-on event name not correct"
+            }
+        ]
+        testList "DownloadComplete" [
+            test "ToString succeeds" {
+                Expect.equal (string DownloadComplete) "downloadComplete" "DownloadComplete event name not correct"
+            }
+            test "ToHxOnString succeeds" {
+                Expect.equal
+                    (DownloadComplete.ToHxOnString())
+                    "download:complete"
+                    "DownloadComplete hx-on event name not correct"
+            }
+        ]
+        testList "DownloadProgress" [
+            test "ToString succeeds" {
+                Expect.equal (string DownloadProgress) "downloadProgress" "DownloadProgress event name not correct"
+            }
+            test "ToHxOnString succeeds" {
+                Expect.equal
+                    (DownloadProgress.ToHxOnString())
+                    "download:progress"
+                    "DownloadProgress hx-on event name not correct"
+            }
+        ]
+        testList "DownloadStart" [
+            test "ToString succeeds" {
+                Expect.equal (string DownloadStart) "downloadStart" "DownloadStart event name not correct"
+            }
+            test "ToHxOnString succeeds" {
+                Expect.equal
+                    (DownloadStart.ToHxOnString()) "download:start" "DownloadStart hx-on event name not correct"
+            }
+        ]
+        testList "SseClose" [
+            test "ToString succeeds" {
+                Expect.equal (string SseClose) "sseClose" "SseClose event name not correct"
+            }
+            test "ToHxOnString succeeds" {
+                Expect.equal (SseClose.ToHxOnString()) "sse:close" "SseClose hx-on event name not correct"
+            }
+        ]
+        testList "SseError" [
+            test "ToString succeeds" {
+                Expect.equal (string SseError) "sseError" "SseError event name not correct"
+            }
+            test "ToHxOnString succeeds" {
+                Expect.equal (SseError.ToHxOnString()) "sse:error" "SseError hx-on event name not correct"
+            }
+        ]
+    ]
+
+open Giraffe.ViewEngine
+
+/// Pipe-able assertion for a rendered node 
+let shouldRender expected node =
+    Expect.equal (RenderView.AsString.htmlNode node) expected "Rendered HTML incorrect"
+
+/// Tests for the HtmaxAttrs module
+let attributes =
+    testList "Attributes" [
+
+        test "_hxBrowserIndicator succeeds" {
+            a [ _hxBrowserIndicator ] [] |> shouldRender """<a hx-browser-indicator="true"></a>"""
+        }
+        test "_hxLive succeeds" {
+            main [ _hxLive "q().doStuff()" ] [] |> shouldRender """<main hx-live="q().doStuff()"></main>"""
+        }
+        test "_hxOnMax succeeds" {
+            body [ _hxOnMax SseClose "alert(done)" ] []
+            |> shouldRender """<body hx-on:htmx:sse:close="alert(done)"></body>"""
+        }
+        testList "_hxPreload" [
+            test "succeeds when given an event" {
+                blockquote [ _hxPreload (Some "focus") ] []
+                |> shouldRender """<blockquote hx-preload="focus"></blockquote>"""
+            }
+            test "succeeds when not given an event" {
+                em [ _hxPreload None ] [] |> shouldRender """<em hx-preload></em>"""
+            }
+        ]
+        test "_hxSseClose succeeds" {
+            form [ _hxSseClose "fin" ] [] |> shouldRender """<form hx-sse:close="fin"></form>"""
+        }
+        test "_hxSseConnect succeeds" {
+            div [ _hxSseConnect "/path/to/resource" ] []
+            |> shouldRender """<div hx-sse:connect="/path/to/resource"></div>"""
+        }
+        test "_hxTargets succeeds" {
+            dl [ _hxTargets ".ephemeral" ] [] |> shouldRender """<dl hx-targets=".ephemeral"></dl>"""
+        }
+        test "_hxWsConnect succeeds" {
+            p [ _hxWsConnect "/over/here" ] [] |> shouldRender """<p hx-ws:connect="/over/here"></p>"""
+        }
+        testList "_hxWsSend" [
+            test "succeeds when given a URL" {
+                span [ _hxWsSend (Some "/a/new/place") ] []
+                |> shouldRender """<span hx-ws:send="/a/new/place"></span>"""
+            }
+            test "succeeds when not given a URL" {
+                aside [ _hxWsSend None ] [] |> shouldRender """<aside hx-ws:send></aside>"""
+            }
+        ]
+    ]
+
+let allTests =
+    testList "ViewEngine.Htmax" [
+        hxBrowserIndicatorConfigItem
+        hxPreloadConfigItem
+        hxSseWsConfigItem
+        hxConfig
+        hxEvent
+        attributes
+    ]

src/ViewEngine.Htmx/Giraffe.ViewEngine.Htmx.fsproj

@@ -4,15 +4,19 @@
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <Description>Extensions to Giraffe View Engine to support htmx attributes and their values</Description>
     <PackageReadmeFile>README.md</PackageReadmeFile>
+    <DocumentationFile>bin\$(Configuration)\$(TargetFramework)\$(AssemblyName).xml</DocumentationFile>
   </PropertyGroup>
 
   <ItemGroup>
     <Compile Include="Htmx.fs" />
+    <Compile Include="Htmax.fs" />
     <None Include="README.md" Pack="true" PackagePath="\" />
+    <None Include="..\icon.png" Pack="true" PackagePath="\" />
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Giraffe.ViewEngine" Version="1.4.0" />
+    <PackageReference Include="Giraffe.ViewEngine" />
+    <PackageReference Include="FSharp.Core" />
   </ItemGroup>
 
   <ItemGroup>

src/ViewEngine.Htmx/Htmax.fs

@@ -0,0 +1,243 @@
+/// <summary>Types and functions supporting htmax-bundled extension attributes in Giraffe View Engine</summary>
+module Giraffe.ViewEngine.Htmax
+
+/// <summary>Items which can be configured for the <c>hx-browser-indicator</c> extension</summary>
+/// <seealso href="https://four.htmx.org/extensions/hx-browser-indicator#boosted-elements">Documentation</seealso>
+type HxBrowserIndicatorConfigItem =
+    /// <summary>Whether to show the browser's native loading indicator for <c>hx-boost</c>ed links</summary>
+    | BoostBrowserIndicator of bool
+    
+    /// <summary>Get the HCON representation of this configuration value</summary>
+    member this.ToHcon() =
+        match this with
+        | BoostBrowserIndicator it -> "boostBrowserIndicator:" + (string it).ToLowerInvariant()
+
+        
+/// <summary>Items which can be configured for the <c>hx-preload</c> extension</summary>
+/// <seealso href="https://four.htmx.org/extensions/hx-preload#configuration">Documentation</seealso>
+type HxPreloadConfigItem =
+    /// <summary>Whether items subject to <c>hx-boost</c> are automatically preloaded (default <c>true</c>)</summary>
+    | AutoBoost of bool
+    
+    /// <summary>The event to use for <c>hx-boost</c> auto-preloaded content (default "mousedown")</summary>
+    | BoostEvent of string
+    
+    /// <summary>The timeout (in ms) for <c>hx-boost</c> auto-preloaded requests (default 50_000)</summary>
+    | BoostTimeout of int
+    
+    /// <summary>Get the HCON representation of this configuration value</summary>
+    member this.ToHcon() =
+        match this with
+        | AutoBoost it -> "autoBoost:" + (string it).ToLowerInvariant()
+        | BoostEvent it -> $"boostEvent:{it}"
+        | BoostTimeout it -> $"boostTimeout:{it}"
+
+
+/// <summary>Items which can be configured for the <c>hx-sse</c> or <c>hx-ws</c> extensions</summary>
+/// <seealso href="https://four.htmx.org/extensions/hx-sse#configuration">SSE Documentation</seealso>
+/// <seealso href="https://four.htmx.org/extensions/hx-ws#configuration">WebSockets Documentation</seealso>
+type HxSseWsConfigItem =
+    /// <summary>Whether to automatically reconnect on stream end (default <c>true</c>)</summary>
+    | Reconnect of bool
+    
+    /// <summary>Delay for reconnect attempts (ms, or numbers with units "1s", "2m"; default "500")</summary>
+    | ReconnectDelay of string
+    
+    /// <summary>Maximum delay for reconnect attempts (ms, or numbers with units "1s, "2m"; default "60000")</summary>
+    | ReconnectMaxDelay of string
+    
+    /// <summary>Reconnect maximum attempts (use -1 for Infinity; default Infinity)</summary>
+    | ReconnectMaxAttempts of int
+    
+    /// <summary>Jitter to use when reconnecting (decimal between 0.0 and 1.0; default 0.3)</summary>
+    | ReconnectJitter of double
+    
+    /// <summary>Whether to pause when the current tab is in the background (default <c>true</c>)</summary>
+    | PauseOnBackground of bool
+    
+    /// <summary>Time-to-Live (TTL) for pending requests (<c>hx-ws</c> only)</summary>
+    | PendingRequestTtl of int
+
+    /// <summary>Get the HCON representation of this configuration value</summary>
+    member this.ToHcon() =
+        match this with
+        | Reconnect it -> "reconnect:" + (string it).ToLowerInvariant()
+        | ReconnectDelay it -> $"reconnectDelay:{it}"
+        | ReconnectMaxDelay it -> $"reconnectMaxDelay:{it}"
+        | ReconnectMaxAttempts it -> "reconnectMaxAttempts:" + if it = -1 then "Infinity" else string it
+        | ReconnectJitter it -> $"reconnectJitter:{it}"
+        | PauseOnBackground it -> "pauseOnBackground:" + (string it).ToLowerInvariant()
+        | PendingRequestTtl it -> $"pendingRequestTTL:{it}"
+
+
+/// <summary>Helpers for generating extension configuration parameters</summary>
+[<AutoOpen>]
+module HxConfig =
+    
+    /// Create an HCON section suitable for hx-config
+    let private hconSettings title values =
+        values |> Seq.map (sprintf "%s.%s" title) |> String.concat " "
+
+    /// <summary>Generate configuration items for preload suitable for <c>hx-config</c></summary>
+    /// <param name="items">The configuration items</param>
+    let hxBrowserIndicatorConfig (items: HxBrowserIndicatorConfigItem seq) =
+        items |> Seq.map _.ToHcon() |> hconSettings "browser-indicator"
+    
+    /// <summary>Generate configuration items for preload suitable for <c>hx-config</c></summary>
+    /// <param name="items">The configuration items</param>
+    let hxPreloadConfig (items: HxPreloadConfigItem seq) =
+        items |> Seq.map _.ToHcon() |> hconSettings "preload"
+    
+    /// <summary>Generate configuration items for SSE suitable for <c>hx-config</c></summary>
+    /// <param name="items">The configuration items</param>
+    let hxSseConfig (items: HxSseWsConfigItem seq) =
+        items |> Seq.map _.ToHcon() |> hconSettings "sse"
+
+    /// <summary>Generate configuration items for WebSockets suitable for <c>hx-config</c></summary>
+    /// <param name="items">The configuration items</param>
+    let hxWsConfig (items: HxSseWsConfigItem seq) =
+        items |> Seq.map _.ToHcon() |> hconSettings "ws"
+
+    
+/// <summary>The events recognized by htmax-bundled extensions</summary>
+[<Struct>]
+type HxEvent =
+    
+    /// <summary>Fired after an SSE connection is established</summary>
+    | AfterSseConnection
+    
+    /// <summary>Fired after an SSE message is received</summary>
+    | AfterSseMessage
+    
+    /// <summary>Fired after a WebSocket connection is established</summary>
+    | AfterWsConnection
+    
+    /// <summary>Fired after a WebSocket message is received</summary>
+    | AfterWsMessage
+    
+    /// <summary>Fired after a WebSocket request is sent</summary>
+    | AfterWsRequest
+    
+    /// <summary>Fired before an SSE connection is established (cancelable)</summary>
+    | BeforeSseConnection
+    
+    /// <summary>Fired before a received SSE message is processed (cancelable)</summary>
+    | BeforeSseMessage
+    
+    /// <summary>Fired before a WebSocket connection is established (cancelable)</summary>
+    | BeforeWsConnection
+    
+    /// <summary>Fired when a download handled by <c>hx-download</c> is complete</summary>
+    | DownloadComplete
+    
+    /// <summary>Fired when a download handled by <c>hx-download</c> is complete</summary>
+    | DownloadProgress
+    
+    /// <summary>Fired when a chunk is received for a download handled by <c>hx-download</c></summary>
+    | DownloadStart
+    
+    /// <summary>Fired before a received WebSocket message is processed (cancelable)</summary>
+    | BeforeWsMessage
+    
+    /// <summary>Fired before a WebSocket request is sent (cancelable)</summary>
+    | BeforeWsRequest
+    
+    /// <summary>Fired when an SSE connection is closed</summary>
+    | SseClose
+    
+    /// <summary>Fired when an SSE connection errors</summary>
+    | SseError
+
+    /// The htmx event name (fst) and kebab-case name (snd, for use with hx-on)
+    static member private Values = Map [
+        AfterSseConnection, ("afterSseConnection", "after:sse:connection")
+        AfterSseMessage, ("afterSseMessage", "after:sse:message")
+        AfterWsConnection, ("afterWsConnection", "after:ws:connection")
+        AfterWsMessage, ("afterWsMessage", "after:ws:message")
+        AfterWsRequest, ("afterWsRequest", "after:ws:request")
+        BeforeSseConnection, ("beforeSseConnection", "before:sse:connection")
+        BeforeSseMessage, ("beforeSseMessage", "before:sse:message")
+        BeforeWsConnection, ("beforeWsConnection", "before:ws:connection")
+        BeforeWsMessage, ("beforeWsMessage", "before:ws:message")
+        BeforeWsRequest, ("beforeWsRequest", "before:ws:request")
+        DownloadComplete, ("downloadComplete", "download:complete")
+        DownloadProgress, ("downloadProgress", "download:progress")
+        DownloadStart, ("downloadStart", "download:start")
+        SseClose, ("sseClose", "sse:close")
+        SseError, ("sseError", "sse:error")
+    ]
+
+    /// <summary>The htmx event name</summary> 
+    override this.ToString() = fst HxEvent.Values[this]
+    
+    /// <summary>The <c>hx-on</c> variant of the htmx event name</summary>
+    member this.ToHxOnString() = snd HxEvent.Values[this]
+
+
+/// <summary>Attributes and flags for htmax-bundled extensions</summary>
+[<AutoOpen>]
+module HtmaxAttrs =
+    
+    /// <summary>Display the browser's native loading indicator when an htmx request is in flight</summary>
+    /// <returns>A configured <c>hx-browser-indicator</c> attribute</returns>
+    /// <seealso href="https://four.htmx.org/extensions/hx-browser-indicator#usage">Documentation</seealso>
+    let _hxBrowserIndicator =
+        attr "hx-browser-indicator" "true"
+
+    /// <summary>Run script each time the DOM changes</summary>
+    /// <param name="script">The script to be run each time the DOM changes (may use <c>q</c> helper)</param>
+    /// <returns>A configured <c>hx-live</c> attribute</returns>
+    /// <seealso href="https://four.htmx.org/extensions/hx-live#the-hx-live-attribute">Documentation</seealso>
+    let _hxLive script =
+        attr "hx-live" script
+    
+    /// <summary>Generate an <c>hx-on:htmx</c> event for an htmax-bundled extension event</summary>
+    /// <param name="event">The <c>HxEvent</c> to be handled</param>
+    /// <param name="handler">The script to be executed when the event occurs</param>
+    /// <returns>A configured <c>hx-on:htmx:</c> attribute</returns>
+    /// <seealso href="https://htmx.org/attributes/hx-on/">Documentation</seealso>
+    let _hxOnMax (event: HxEvent) handler =
+        Htmx.HtmxAttrs._hxOnEvent $"htmx:{event.ToHxOnString()}" handler
+    
+    /// <summary>Identify a resource as one that should be preloaded</summary>
+    /// <param name="evt">The DOM event or htmx trigger which should cause the preload (optional; default behavior is
+    /// preloading on <c>mousedown</c>)</param>
+    /// <returns>A configured <c>hx-preload</c> attribute</returns>
+    /// <seealso href="https://four.htmx.org/extensions/hx-preload#usage">Documentation</seealso>
+    let _hxPreload evt =
+        match evt with Some it -> attr "hx-preload" it | None -> flag "hx-preload"
+    
+    /// <summary>Define an SSE message which indicates the connection should be closed</summary>
+    /// <param name="message">The text of the message which indicates the SSE connection should be closed</param>
+    /// <returns>A configured <c>hx-sse:close</c> attribute</returns>
+    /// <seealso href="https://four.htmx.org/extensions/hx-sse#hx-sseclose">Documentation</seealso>
+    let _hxSseClose message =
+        attr "hx-sse:close" message
+        
+    /// <summary>Define a URL to which an SSE connection should be established</summary>
+    /// <param name="url">The URL to which an SSE connection should be established</param>
+    /// <returns>A configured <c>hx-sse:connect</c> attribute</returns>
+    /// <seealso href="https://four.htmx.org/extensions/hx-sse#hx-sseconnect">Documentation</seealso>
+    let _hxSseConnect url =
+        attr "hx-sse:connect" url
+    
+    /// <summary>Replace multiple targets with the same content</summary>
+    /// <param name="selector">The CSS selector to identify targets for the replacement</param>
+    /// <returns>A configured <c>hx-targets</c> attribute</returns>
+    /// <seealso href="https://four.htmx.org/extensions/hx-targets#usage">Documentation</seealso>
+    let _hxTargets selector =
+        attr "hx-targets" selector
+    
+    /// <summary>Connect to a WebSocket URL</summary>
+    /// <param name="url">The URL to which a WebSocket connection should be established</param>
+    /// <returns>A configured <c>hx-ws:connect</c> attribute</returns>
+    /// <seealso href="https://four.htmx.org/extensions/hx-ws#usage">Documentation</seealso>
+    let _hxWsConnect url =
+        attr "hx-ws:connect" url
+
+    /// <summary>Send data via a WebSocket connection</summary>
+    /// <param name="url">The URL to which the data should be sent (optional; default is connection URL)</param>
+    /// <returns>A configured <c>hx-ws:send</c> attribute</returns>
+    /// <seealso href="https://four.htmx.org/extensions/hx-ws#usage">Documentation</seealso>
+    let _hxWsSend url =
+        match url with Some it -> attr "hx-ws:send" it | None -> flag "hx-ws:send"

src/ViewEngine.Htmx/README.md

@@ -2,32 +2,42 @@
 
 This package enables [htmx](https://htmx.org) support within the [Giraffe](https://giraffe.wiki) view engine.
 
-**htmx version: 1.9.8**
+**htmx version: 4.0.0-beta4**
+
+_Upgrading from v2.x: see [the migration guide](https://four.htmx.org/docs/get-started/migration) for changes, which are plentiful. htmx switches from `XMLHTTPRequest` to `fetch`, and many changes are related to the new event cycle._
+
+_Inheritance is now explicit; to have an attribute's value inherited to its children, wrap the attribute in `hxInherited` (ex. `hxInherited (_hxTarget "#main")`). Values can be appended to inherited values as well using the `hxAppend` modifier._
+
+_Several constructs have been marked obsolete in this release, and will be removed from the first production release of v4. With the exception of `_hxDisable`, though (which now functions as the deprecated `_hxDisabledElt` did), this should not introduce compile errors. Rather, this package will raise warnings for deprecated constructs, along with suggestions of what to use instead._
 
 ### Setup
 
 1. Install the package.
-2. Prior to using the attribute or support modules, `open Giraffe.ViewEngine.Htmx`.
+1. Prior to using the attribute or support modules, `open Giraffe.ViewEngine.Htmx`.
+1. If the client is using the `htmax` bundle, also `open Giraffe.ViewEngine.Htmax`. 
 
 ### Use
 
 Following Giraffe View Engine's lead, there are a set of attribute functions for htmx; for many of the attributes, there are also helper modules to assist with typing the values. The example below utilizes both:
 
 ```fsharp
-  let autoload =
+let autoload =
     div [ _hxGet "/this/data"; _hxTrigger HxTrigger.Load ] [ str "Loading..." ]
 ```
 
 Support modules include:
+- `HxConfig` _(new in v4)_
 - `HxEncoding`
 - `HxHeaders`
-- `HxParams`
+- ~~`HxParams`~~ _(removed in v4)_
-- `HxRequest`
+- ~~`HxRequest`~~ _(renamed to `HxConfig`)_
 - `HxSwap` (requires `open Giraffe.Htmx`)
 - `HxTrigger`
 - `HxVals`
 
-There are two `XmlNode`s that will load the htmx script from unpkg; `Htmx.Script.minified` loads the minified version, and `Htmx.Script.unminified` loads the unminified version (useful for debugging).
+`Htmx.Script.local` creates an `XmlNode` to load the package-provided htmx library. There are also two `XmlNode`s that will load the htmx script from jsdelivr; `Htmx.Script.cdnMinified` loads the minified version, and `Htmx.Script.cdnUnminified` loads the unminified version (useful for debugging). htmx v4 also distributes a "max" bundle which contains some common extensions; these are available with the same names under `Htmx.Script.Max`.
+
+_NOTE: When using the CDN nodes and a Content Security Policy (CSP) header, `cdn.jsdelivr.net` needs to be listed as an allowable `script-src`._
 
 This also supports [fragment rendering](https://bitbadger.solutions/blog/2022/fragment-rendering-in-giraffe-view-engine.html), providing the flexibility to render an entire template, or only a portion of it (based on the element's `id` attribute).
 
@@ -40,22 +50,22 @@ htmx's attributes and these attribute functions map one-to-one. There are two ex
 The htmx `hx-on` attribute supports multiple events if they are separated with a newline (`\n`) character. The value provided to this attribute will be attribute-escaped, but in testing, it was interpreted correctly.
 
 The support modules contain named properties for known values (as illustrated with `HxTrigger.Load` above). A few of the modules are more than collections of names, though:
-- `HxRequest` has a `Configure` function, which takes a list of strings; the other functions in the module allow for configuring the request.
+- `HxConfig` has a `Configure` function, which takes a list of strings; the other functions in the module allow for configuring the request.
 
 ```fsharp
-  HxRequest.Configure [ HxRequest.Timeout 500 ] |> _hxRequest 
+HxConfig.Configure [ HxRequest.Timeout 500 ] |> _hxConfig 
 ```
 - `HxTrigger` is _(by far)_ the most complex of these modules. Most uses won't need that complexity; however, complex triggers can be defined by piping into or composing with other functions. For example, to define an event that responds to a shift-click anywhere on the document, with a delay of 3 seconds before firing:
 
 ```fsharp
-  HxTrigger.Click
+HxTrigger.Click
-  |> HxTrigger.Filter.Shift
+|> HxTrigger.Filter.Shift
-  |> HxTrigger.FromDocument
+|> HxTrigger.FromDocument
-  |> HxTrigger.Delay "3s"
+|> HxTrigger.Delay "3s"
-  |> _hxTrigger
+|> _hxTrigger
 
-  // or
+// or
 
-  (HxTrigger.Filter.Shift >> HxTrigger.FromDocument >> HxTrigger.Delay "3s") HxTrigger.Click
+(HxTrigger.Filter.Shift >> HxTrigger.FromDocument >> HxTrigger.Delay "3s") HxTrigger.Click
-  |> _hxTrigger
+|> _hxTrigger
 ```

src/pack.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+dotnet pack Common/Giraffe.Htmx.Common.fsproj -c Release
+dotnet pack Htmx/Giraffe.Htmx.fsproj -c Release
+dotnet pack ViewEngine.Htmx/Giraffe.ViewEngine.Htmx.fsproj -c Release
+cp Common/bin/Release/Giraffe.Htmx.Common.*.nupkg .
+cp Htmx/bin/Release/Giraffe.Htmx.*.nupkg .
+cp ViewEngine.Htmx/bin/Release/Giraffe.ViewEngine.Htmx.*.nupkg .