added htmx swapping and url history features

web/dashboard.templ

@@ -0,0 +1,12 @@
+package web
+
+templ dashboard() {
+    <title>Home</title>
+    <h1>Hello World!</h1>
+    <button hx-get="/hello" hx-trigger="click" hx-target="#hello" hx-swap="outerHtml">Hello you!</button>
+
+    <div id="hello">
+
+    </div>
+
+}

web/hello.templ

@@ -1,6 +1,7 @@
 package web
 
 templ hello(name string) {
+    <title>Hello</title>
     <div>Hello { name } </div>
     <h1>SUPRISE!!!</h1>
 }

web/router.go

@@ -1,22 +1,25 @@
 package web
 
 import (
+	"html/template"
 	"net/http"
-    "html/template"
 
-    "context"
+	"bytes"
+	"context"
 
+	"github.com/a-h/templ"
 	"github.com/go-chi/chi/v5"
 	"github.com/rs/zerolog"
 	"github.com/rs/zerolog/log"
 )
 
-const TemplateDir = "./web/templates/"
+type TemplateState struct {
-
+    InnerHtml template.HTML
-type IndexData struct {
+    ActivePage string
-    Title string
 }
 
+const TemplateDir = "./web/templates/"
+
 func SetLogLevel(level zerolog.Level) {
 	zerolog.SetGlobalLevel(level)
 }
@@ -29,7 +32,23 @@ func WebRouter() http.Handler {
 	return r
 }
 
-func getIndex(w http.ResponseWriter, req *http.Request) {
+//for name, values := range req.Header {
+    // Loop over all values for the name.
+//    for _, value := range values {
+//        log.Debug().Msg(name + " " + value);
+//    }
+// }
+
+func renderFullPage(w http.ResponseWriter, c templ.Component, pageName string) {
+    var buf bytes.Buffer
+
+    // Render the provided templ component
+    err := c.Render(context.Background(), &buf)
+    if err != nil {
+        log.Fatal().Err(err).Msg("Fatal error reading hello template");
+    }
+
+    // get the index template
     index, err := template.ParseFiles(TemplateDir + "index.html")
     if err != nil {
         log.Fatal().
@@ -37,11 +56,40 @@ func getIndex(w http.ResponseWriter, req *http.Request) {
             Msg("Fatal error reading index template")
     }
     
-    err = index.Execute(w, IndexData{Title: "thetitle"})
+    // Inject the templ component html into the index template
+    err = index.Execute(w, 
+        TemplateState{
+            InnerHtml: template.HTML(buf.String()),
+            ActivePage: pageName,
+        });
+    if err != nil {
+        log.Fatal().Err(err).Msg("Fatal error reading hello template");
+    }
+}
+
+func getIndex(w http.ResponseWriter, req *http.Request) {
+    component := dashboard();
+
+    _, ok := req.Header["Hx-Request"]
+    if ok {
+        err := component.Render(context.Background(), w);          
+        if err != nil {
+            log.Fatal().Err(err).Msg("Couldn't render dashboard templ template");
+        }
+    } else {
+        renderFullPage(w, component, "index");
+    }
 }
 
 func getHello(w http.ResponseWriter, req *http.Request) {
-    log.Debug().Msg("Got index")
     component := hello("Nick")
-    component.Render(context.Background(), w)
+    _, ok := req.Header["Hx-Request"]
+    if ok {
+        err := component.Render(context.Background(), w);          
+        if err != nil {
+            log.Fatal().Err(err).Msg("Couldn't render dashboard templ template");
+        }
+    }else {
+        renderFullPage(w, component, "hello");
+    }
 }

web/sass/nav.scss

@@ -1,30 +1,42 @@
+header {
+    background-color: $nav-bg;
+    height: 30px;
+    width: 100%;
+    margin-top: 10px;
+    margin-bottom: 10px;
+}
 nav {
     background-color: $nav-bg;
     display: flex;
+    flex-direction: column;
 
     ul {
         margin: 0;
         padding: 0;
         list-style: none;
+        padding-left: 0;
     }
-    li { display: inline-block; }
+    li { 
-
+        margin-top: 10px;
-    button.title {
+        margin-bottom: 10px;
-        color: $green;
     }
-    button.active {
+    a.active {
+        pointer-events: none;
         background-color: $nav-active-bg;
         color: $nav-active-color;
     }
-    button {
+    a {
+        transition: background-color $hl-trn-spd ease-in, color $hl-trn-spd ease-in;
+        border-radius: 5px;
+        text-align: center;
+        padding: 12px 0px;
+        display: inline-block;
+        cursor: pointer;
         color: $nav-color;
-        display: block;
+        width: 100%;
-        padding: 12px 24px;
         text-decoration: none;
-        @include button_link;
     }
-    button:hover {
+    a:hover {
         background-color: $nav-hover;
     }
-
 }

web/sass/site.scss

@@ -1,5 +1,8 @@
 @import 'catpuccin';
 
+// highlight transition speed
+$hl-trn-spd: 0.2s;
+
 $bg: $latte-base;
 $nav-bg: $latte-crust;
 $nav-color: $latte-text;
@@ -21,3 +24,31 @@ body.dark-mode {
     $nav-bg: $macchiato-crust;
     $green: $macchiato-green;
 }
+
+div#below-header {
+    display:flex;
+}
+
+div#left-col {
+    width: 15vw;
+    padding: 10px;
+}
+
+div#main-body-content {
+    width: 70vw;
+    padding: 10px;
+    opacity: 1;
+    transition: opacity 0.2s ease-out;
+}
+div#main-body-content.htmx-swapping {
+    opacity: 0;
+    transition: opacity 0.2s ease-out;
+}
+div#main-body-content.htmx-added {
+    opacity: 0;
+}
+
+div#right-col {
+    width: 15vw;
+    padding: 10px;
+}

web/static/index.js

@@ -3,4 +3,20 @@ function say_hello() {
     console.log("Hello World");
 }
 
-export {say_hello};
+function register_nav_links() {
+    var navAnchors = document.querySelectorAll("nav a");
+
+    navAnchors.forEach(function (a_el) {
+        a_el.addEventListener("click", nav_a_click);
+    });
+}
+
+function nav_a_click(event) {
+    var active_anchor = document.querySelector("nav a.active");
+    active_anchor.classList.remove("active");
+
+    var clicked = event.target;
+    clicked.classList.add("active");
+}
+
+export {say_hello, register_nav_links};

web/templates/index.html

@@ -5,30 +5,58 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <link rel="stylesheet" href="/static/site.css">
     <script src="/static/htmx.min.js"></script>
-    <title>{{.Title}}</title>
 </head>
 <body>
     <header>
-        <nav>
+
-            <button class="title" href="/">Recount!</button>
-            <ul>
-                <li><button hx-boost="true" class="active" href="/home">Home!</button></li>
-                <li><button href="/nohome">Not home!</button></li>
-            </ul>
-        </nav>
     </header>
-        <div id="main-body-content">
+    <div id="below-header">
-            <h1>Hello World!</h1>
-            <button hx-get="/hello" hx-trigger="click" hx-target="#hello" hx-swap="outerHtml">Hello you!</button>
 
-            <div id="hello">
+        <div id="left-col">
+            <nav>
+                <button class="title" href="/">Recount!</button>
+                <ul>
+                    <li>
+                        <a 
+                        hx-get="/" 
+                        hx-swap="innerHtml swap:0.2s settle:0.2s"
+                        hx-push-url="true"
+                        hx-boost="true"
+                        hx-target="#main-body-content"
+                            {{ if (eq .ActivePage "index") }}
+                            class="active"
+                            {{ end }}
+                        > 
+                            Home!
+                        </a>
 
-            </div>
+                    </li>
+                    <li>
+                        <a
+                        hx-get="/hello"
+                        hx-swap="innerHtml swap:0.2s settle:0.2s"
+                        hx-push-url="true"
+                        hx-boost="true"
+                        hx-target="#main-body-content"
+                        {{ if (eq .ActivePage "hello") }}
+                        class="active"
+                        {{ end }}
+                        >
+                            Not home!
+                        </a>
+                    </li>
+                </ul>
+            </nav>
         </div>
+        <div id="main-body-content">
+            {{.InnerHtml}}
+        </div>
+    </div>
         <script type="module" src="/static/index.js"></script>
         <script type="module">
-        import {say_hello} from "/static/index.js";
+        import {say_hello, register_nav_links} from "/static/index.js";
         say_hello();
+        register_nav_links();
         </script>
 </body>
 </html>