src/Common/Common.fs

@@ -103,3 +103,9 @@ module HxSwap =
     /// <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/Htmx/Htmx.fs

@@ -30,6 +30,11 @@ type IHeaderDictionary with
     /// <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
+
+    /// <summary><c>true</c> if the request has been fired by the preload extension</summary>
+    /// <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
     
     /// <summary>The user response to an <c>hx-prompt</c></summary>
     [<Obsolete "hx-prompt is removed in v4">]
@@ -40,6 +45,11 @@ type IHeaderDictionary with
     member this.HxRequest
         with get () = hdr this "HX-Request" |> Option.map bool.Parse
 
+    /// <summary>The ID of the request (WebSocket extension requests only)</summary>
+    /// <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"
+    
     /// <summary>The request type sent by htmx</summary>
     /// <seealso cref="HxRequestTypes" />
     member this.HxRequestType
@@ -110,6 +120,14 @@ module Handlers =
 
     open Giraffe.Htmx.Common
     
+    /// <summary>Instruct htmx to download a response from another path / URL</summary>
+    /// <param name="path">The path or URL where the downloadable content is found</param>
+    /// <returns>An HTTP handler with the <c>HX-Download</c> header set</returns>
+    /// <remarks>This requires the client-side <c>hx-download</c> extension (included in the htmax bundle)</remarks>
+    /// <seealso href="https://four.htmx.org/extensions/hx-download#hx-download-header">Documentation</seealso>
+    let withHxDownload (path: string) : HttpHandler =
+        setHttpHeader "HX-Download" path
+    
     /// <summary>Instruct htmx to perform a client-side redirect for content</summary>
     /// <param name="path">The path where the content should be found</param>
     /// <returns>An HTTP handler with the <c>HX-Location</c> header set</returns>

src/Tests/Common.fs

@@ -63,6 +63,9 @@ let swap =
         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

src/Tests/Htmx.fs

@@ -73,6 +73,30 @@ let dictExtensions =
                     ctx.Request.Headers.HxHistoryRestoreRequest.Value "The header should have been false"
             }
         ]
+        testList "HxPreloaded" [
+            test "succeeds when the header is not present" {
+                let ctx = Substitute.For<HttpContext>()
+                ctx.Request.Headers.ReturnsForAnyArgs(HeaderDictionary()) |> ignore
+                Expect.isNone ctx.Request.Headers.HxPreloaded "There should not have been a header returned"
+            }
+            test "succeeds when the header is present and true" {
+                let ctx = Substitute.For<HttpContext>()
+                let dic = HeaderDictionary()
+                dic.Add("HX-Preloaded", "true")
+                ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
+                Expect.isSome ctx.Request.Headers.HxPreloaded "There should be a header present"
+                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>()
@@ -96,6 +120,21 @@ let dictExtensions =
                 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>()
@@ -253,6 +292,14 @@ 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()

src/Tests/ViewEngineMax.fs

@@ -3,6 +3,118 @@ 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" [
@@ -110,6 +222,37 @@ let hxEvent =
                     (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"
@@ -138,10 +281,25 @@ let shouldRender expected node =
 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>"""
         }
@@ -149,6 +307,9 @@ let attributes =
             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>"""
         }
@@ -165,6 +326,10 @@ let attributes =
 
 let allTests =
     testList "ViewEngine.Htmax" [
+        hxBrowserIndicatorConfigItem
+        hxPreloadConfigItem
+        hxSseWsConfigItem
+        hxConfig
         hxEvent
         attributes
     ]

src/ViewEngine.Htmx/Htmax.fs

@@ -1,6 +1,104 @@
 /// <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 =
@@ -29,6 +127,15 @@ type HxEvent =
     /// <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
     
@@ -53,6 +160,9 @@ type HxEvent =
         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")
     ]
@@ -68,6 +178,19 @@ type HxEvent =
 [<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>
@@ -76,6 +199,14 @@ module HtmaxAttrs =
     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>
@@ -90,6 +221,13 @@ module HtmaxAttrs =
     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>

src/ViewEngine.Htmx/Htmx.fs

@@ -93,7 +93,7 @@ type HxEvent =
     | [<System.Obsolete "Removed in v4; use Htmax.HxEvents.AfterSseMessage">] AfterSseMessage
     
     /// <summary>Triggered after a Server Sent Events (SSE) stream is closed</summary>
-    | [<System.Obsolete "Removed in v4; SSE streaming not a function of SSE extension">] AfterSseStream
+    | [<System.Obsolete "Removed in v4; SSE is assumed to be a stream">] AfterSseStream
     
     /// <summary>Triggered after new content has been swapped in</summary>
     | AfterSwap
@@ -144,7 +144,7 @@ type HxEvent =
     | [<System.Obsolete "Removed in v4; use fetch event handlers">] BeforeSseReconnect
     
     /// <summary>Triggered before a Server Sent Events (SSE) stream is opened</summary>
-    | [<System.Obsolete "Removed in v4; SSE streaming not a function of SSE extension">] BeforeSseStream
+    | [<System.Obsolete "Removed in v4; SSE is assumed to be a stream">] BeforeSseStream
     
     /// <summary>Triggered before a swap is done, allows you to configure the swap</summary>
     | BeforeSwap