swap codapi out for htmx

cmd/httpd/main.ha

@@ -220,20 +220,17 @@ fn handle_cors(serv_req: *http::server_request) void = {
 	)!;
 };
 
-fn json_wrap(res: (*json::value | void)) (*json::value | badrequest) = {
-	return match (res) {
-	case let payload: *json::value => return payload;
-	case void => return badrequest;
-	};
-};
-
 fn handle_exec(buf: *io::stream, serv_req: *http::server_request) (void | badrequest) = {
 	let request = serv_req.request;
 
 	let payload = match (request.body) {
 	case void => return badrequest;
 	case let body: io::handle =>
-		let payload = json::load(body)!;
+		let payload = match (json::load(body)) {
+		case let j: json::value => yield j;
+		case let err: json::error =>
+			return badrequest;
+		};
 		yield payload;
 	};
 
@@ -244,15 +241,11 @@ fn handle_exec(buf: *io::stream, serv_req: *http::server_request) (void | badreq
 	case => return badrequest;
 	};
 
-	let files = json_wrap(json::get(&payload, "files"))?;
-
-	let files = match (*files) {
-	case let o: json::object => yield o;
-	case => return badrequest;
+	let code = match (json::get(&payload, "code")) {
+	case let payload: *json::value => yield payload;
+	case void => return badrequest;
 	};
 
-	let code = json_wrap(json::get(&files, ""))?;
-
 	let code = match (*code) {
 	case let c: str => yield c;
 	case => return badrequest;

frontend/app.js

@@ -1,4 +1,19 @@
 import {CodeJar} from "./codejar.js"
+import hljs from "./highlight.min.js"
+import "./htmx.js"
+
+htmx.defineExtension('json-enc', {
+    onEvent: function (name, evt) {
+        if (name === "htmx:configRequest") {
+            evt.detail.headers['Content-Type'] = "application/json";
+        }
+    },
+
+    encodeParameters : function(xhr, parameters, elt) {
+        xhr.overrideMimeType('text/json');
+        return (JSON.stringify(parameters));
+    }
+});
 
 function highlight(editor) {
   editor.textContent = editor.textContent;
@@ -47,9 +62,7 @@ if (location.hash) {
   jar.updateCode(defaultCode);
 }
 
-let shareLink = document.createElement("a");
-shareLink.href = "#";
-shareLink.onclick = (e) => {
+document.getElementById("share-button").onclick = (e) => {
   e.preventDefault();
   let code = document.querySelector('.editor').innerText;
   location.hash = base64Encode(code);
@@ -57,16 +70,44 @@ shareLink.onclick = (e) => {
   if (navigator.clipboard) {
     let text = location.href;
     navigator.clipboard.writeText(text).then(function() {
-      document.querySelector("codapi-status").innerText = "✓ Link copied!"
+      document.getElementById("status").innerText = "✓ Link copied!"
     }, function(err) {
-      document.querySelector("codapi-status").innerText = "✓ Link changed. Copy the URL now."
+      document.getElementById("status").innerText = "✓ Link changed. Copy the URL now."
     });
   } else {
-    document.querySelector("codapi-status").innerText = "✓ Link changed. Copy the URL now."
+    document.getElementById("status").innerText = "✓ Link changed. Copy the URL now."
   }
 };
 
-let shareText = document.createTextNode("Share");
-shareLink.appendChild(shareText);
-let editLink = document.querySelector("codapi-toolbar a");
-editLink.insertAdjacentElement('afterend', shareLink);
+window.getCode = function getCode() {
+  return jar.toString();
+}
+
+let statusElem = document.getElementById("status");
+
+document.body.addEventListener('htmx:beforeRequest', (event) => {
+  let elem = document.getElementById("htmx-indicator");
+  elem.style.display = "inline";
+});
+document.body.addEventListener('htmx:afterRequest', (event) => {
+  let elem = document.getElementById("htmx-indicator");
+  elem.style.display = "none";
+});
+document.body.addEventListener('htmx:beforeSwap', (event) => {
+  let detail = event.detail;
+  if (detail.isError) {
+    statusElem.innerText = "✘ Failed";
+    return;
+  }
+
+  detail.shouldSwap = false;
+  statusElem.innerText = "✓ Done";
+
+  let x = detail.xhr;
+  let resp = JSON.parse(x.response);
+
+  let output = document.querySelector(".code-output code.stderr");
+  output.innerText = resp.stderr;
+  output = document.querySelector(".code-output code.stdout");
+  output.innerText = resp.stdout;
+});

frontend/codapi-settings.js

@@ -1 +0,0 @@
-(()=>{var e=window.codapi??{};e.version="0.19.0";e.engines=e.engines??{};e.settings=e.settings??{};window.codapi=e;var t=class extends HTMLElement{connectedCallback(){this.ready||(e.settings.url=this.getAttribute("url"),this.ready=!0)}attributeChangedCallback(n,d,s){e.settings[n]=s}};window.customElements.get("codapi-settings")||customElements.define("codapi-settings",t);})();

frontend/codapi.css

@@ -1,29 +0,0 @@
-codapi-snippet{
-  --toolbar-gap: 1em;
-  --toolbar-margin-bottom: 1em;
-  display:block
-}
-codapi-toolbar{display:flex;
-  flex-wrap:wrap;
-  align-items:center;
-  gap:var(--toolbar-gap);
-  margin-bottom:var(--toolbar-margin-bottom)
-}
-codapi-status{display:block;
-  white-space:nowrap
-}
-codapi-output{position:relative;
-  display:block
-}
-codapi-output[hidden]{display:none
-}
-codapi-output a[href="#close"]{position:absolute;
-  top:.25em;
-  right:.25em;
-  display:inline-block;
-  width:1.5em;
-  height:1.5em;
-  line-height:1.5em;
-  text-align:center
-}
-

frontend/codapi.js

@@ -1,28 +0,0 @@
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-<button hidden>Run</button>
-<a href="#edit" hidden>Edit</a>
-<codapi-status></codapi-status>
-`;var A=class extends HTMLElement{constructor(){super()}connectedCallback(){this.ready||(this.render(),this.listen(),this.ready=!0)}render(){this.appendChild(_.content.cloneNode(!0)),this.run=this.querySelector("button"),this.edit=this.querySelector("a"),this.status=this.querySelector("codapi-status");let t=this.getAttribute("actions");this.addActions(t?t.split(" "):null)}listen(){this.run.addEventListener("click",t=>{this.dispatchEvent(new Event("run"))}),this.edit.addEventListener("click",t=>{t.preventDefault(),this.dispatchEvent(new Event("edit"))})}addActions(t){if(t)for(let e of t){let s=w.parse(e);if(!s)continue;let i=this.createButton(s);this.insertBefore(i,this.status)}}createButton(t){let e=document.createElement("a");return e.addEventListener("click",s=>{s.preventDefault();let i=new CustomEvent(t.type,{detail:t.value});this.dispatchEvent(i)}),e.innerText=t.title,e.href="#"+t.value,e}showRunning(){this.run.setAttribute("disabled",""),this.status.showRunning()}showFinished(t){this.run.removeAttribute("disabled"),this.status.showFinished(t)}showStatus(t){this.run.removeAttribute("disabled"),this.status.showMessage(t)}get runnable(){return!this.run.hasAttribute("hidden")}set runnable(t){t?this.run.removeAttribute("hidden"):this.run.setAttribute("hidden","")}get editable(){return!this.edit.hasAttribute("hidden")}set editable(t){t?this.edit.removeAttribute("hidden"):this.edit.setAttribute("hidden","")}};window.customElements.get("codapi-toolbar")||customElements.define("codapi-toolbar",A);var T={running:"Running...",failed:"\u2718 Failed",done:"\u2713 Done"},k=class extends HTMLElement{showRunning(){let t=this.getAttribute("running")||T.running;this.innerHTML=`
-            <svg width="1em" height="1em" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M12,4a8,8,0,0,1,7.89,6.7A1.53,1.53,0,0,0,21.38,12h0a1.5,1.5,0,0,0,1.48-1.75,11,11,0,0,0-21.72,0A1.5,1.5,0,0,0,2.62,12h0a1.53,1.53,0,0,0,1.49-1.3A8,8,0,0,1,12,4Z"><animateTransform attributeName="transform" type="rotate" dur="0.75s" values="0 12 12;360 12 12" repeatCount="indefinite"/></path></svg>
-            ${t}
-        `}showFinished(t){if(!t.ok){this.innerText=this.getAttribute("failed")||T.failed;return}let e=this.getAttribute("done")||T.done;e=e.replace("$DURATION",t.duration),this.innerHTML=`
-            ${e}
-            <codapi-ref>by <a href="https://codapi.org/">codapi</a></codapi-ref>`}showMessage(t){this.innerText=t}};window.customElements.get("codapi-status")||customElements.define("codapi-status",k);function V(n){if(!n.length)return document.createTextNode("");let t=document.createElement("table"),e=document.createElement("thead"),s=document.createElement("tbody"),i=document.createElement("tr");return Object.keys(n[0]).forEach(o=>{let r=document.createElement("th");r.textContent=o,i.appendChild(r)}),e.appendChild(i),n.forEach(o=>{let r=document.createElement("tr");Object.values(o).forEach(u=>{let x=document.createElement("td");x.textContent=u,r.appendChild(x)}),s.appendChild(r)}),t.appendChild(e),t.appendChild(s),t}var $={asTable:V};var f="---";function J(n,t){let e=n.indexOf(t);return e>=0?[n.slice(0,e),n.slice(e+t.length)]:[n,""]}function Z(n){if(n.endsWith(f))return"";let t=n.lastIndexOf(`
-${f}
-`);return t!==-1?n.slice(t+f.length+2):n.startsWith(f)?n.slice(f.length+1):n}var c={cut:J,tail:Z,HORIZONTAL_RULE:f};var d={text:"text",table:"table",svg:"svg",html:"html",iframe:"iframe",dom:"dom",hidden:"hidden"},K="ok",M=document.createElement("template");M.innerHTML=`
-<a href="#close">\u2715</a>
-<pre><code></code></pre>
-`;var G={[d.text]:(n,t)=>{let e=n.stdout||n.stderr,s=t?c.tail(e):e;return document.createTextNode(s||K)},[d.table]:n=>{if(!n.stdout)return document.createTextNode(n.stderr);let t=typeof n.stdout=="object"?n.stdout:JSON.parse(n.stdout);return $.asTable(t)},[d.svg]:n=>{if(!n.stdout)return document.createTextNode(n.stderr);let t=new DOMParser().parseFromString(n.stdout,"image/svg+xml");return t.querySelector("parsererror")?document.createTextNode(n.stdout):t.documentElement},[d.html]:n=>{if(!n.stdout)return document.createTextNode(n.stderr);let t=new DOMParser().parseFromString(n.stdout,"text/html");if(t.querySelector("parsererror"))return document.createTextNode(n.stdout);let e=document.createDocumentFragment();return Array.from(t.body.childNodes).forEach(s=>e.appendChild(s)),e},[d.iframe]:n=>{if(!n.stdout)return document.createTextNode(n.stderr);let t=new DOMParser().parseFromString(n.stdout,"text/html");if(t.querySelector("parsererror"))return document.createTextNode(n.stdout);let e=document.createElement("iframe");return e.width="100%",e.srcdoc=t.documentElement.outerHTML,e.onload=()=>{let s=e.contentDocument.body,i=e.contentDocument.documentElement,o=Math.max(s.scrollHeight,s.offsetHeight,i.clientHeight,i.scrollHeight,i.offsetHeight);e.style.height=o+"px"},e},[d.dom]:n=>n.stdout?n.stdout:document.createTextNode(n.stderr),[d.hidden]:n=>!n.stdout&&n.stderr?document.createTextNode(n.stderr):null},C=class extends HTMLElement{constructor(){super()}connectedCallback(){this.ready||(this.appendChild(M.content.cloneNode(!0)),this.close=this.querySelector("a"),this.output=this.querySelector("pre > code"),this.close.addEventListener("click",t=>{t.preventDefault(),this.hide()}),this.ready=!0)}fadeOut(){this.style.opacity=.4}fadeIn(){setTimeout(()=>{this.style.opacity=""},100)}showResult(t){let e=G[this.mode](t,this.tail);if(this.output.innerHTML="",!e){this.hide();return}this.output.appendChild(e),this.show()}showMessage(t){this.output.innerText=t,t?this.show():this.hide()}showError(t){let e=t.message+(t.stack?`
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-<codapi-toolbar></codapi-toolbar>
-<codapi-output hidden></codapi-output>
-`;var v=class extends HTMLElement{constructor(){super(),this.ready=!1,this.executor=null,this._snippet=null,this._toolbar=null,this._output=null,this._fallback=null}connectedCallback(){if(this.ready)return;let t=parseInt(this.getAttribute("init-delay"),10)||0;At(()=>{this.init(),this.render(),this.listen(),this.ready=!0,this.dispatchEvent(new Event("load"))},t)}init(){let t=this.getAttribute("files");this.executor=this.hasAttribute("sandbox")?new b({engine:this.getAttribute("engine"),sandbox:this.getAttribute("sandbox"),command:this.getAttribute("command"),template:this.getAttribute("template"),files:t?t.split(" "):null}):null,this.dependsOn=this.getAttribute("depends-on"),this.state=g.unknown}render(){this.appendChild(q.content.cloneNode(!0));let t=this.findCodeElement();this.snippet=new E(t,this.editor,this.execute.bind(this)),this._toolbar=this.querySelector("codapi-toolbar");let e=this.getAttribute("actions");this._toolbar.runnable=this.executor!=null,this._toolbar.addActions(e?e.split(" "):null);let s=this._toolbar.querySelector("codapi-status");this.hasAttribute("status-running")&&s.setAttribute("running",this.getAttribute("status-running")),this.hasAttribute("status-failed")&&s.setAttribute("failed",this.getAttribute("status-failed")),this.hasAttribute("status-done")&&s.setAttribute("done",this.getAttribute("status-done")),this._output=this.querySelector("codapi-output"),this._output.mode=this.getAttribute("output-mode"),this._output.tail=this.hasAttribute("output-tail"),this.hasAttribute("output")&&(this._fallback=this.extractFallback(this.getAttribute("output")))}listen(){this._toolbar.addEventListener("run",t=>{this.execute()}),this._toolbar.addEventListener("command",t=>{this.execute(t.detail)}),this._toolbar.addEventListener("event",t=>{this.dispatchEvent(new Event(t.detail))}),this.editor==p.basic&&(this._toolbar.editable=!0,this._toolbar.addEventListener("edit",t=>{this.snippet.focusEnd()})),this.snippet.addEventListener("hide",t=>{this._output.hide()})}findCodeElement(){if(!this.selector){let e=this.previousElementSibling||this.parentElement.previousElementSibling;return e.querySelector("code")||e}let t;if(this.selector.startsWith("@prev")){let e=this.previousElementSibling,[s,i]=c.cut(this.selector," ");t=e.querySelector(i)}else t=document.querySelector(this.selector);if(!t)throw Error(`element not found: ${this.selector}`);return t}extractFallback(t){let e=this.findOutputElement(t),i=(e.querySelector("code")||e).textContent.trim();return e.parentElement.removeChild(e),{ok:!1,duration:0,stdout:i,stderr:""}}findOutputElement(t){if(!t||t=="@next")return this.nextElementSibling||this.parentElement.nextElementSibling;let e;if(t.startsWith("@next")){let s=this.nextElementSibling,[i,o]=c.cut(t," ");e=s.querySelector(o)}else e=document.querySelector(t);if(!e)throw Error(`element not found: ${t}`);return e}async execute(t=void 0){if(this.executor){if(this.snippet.isEmpty){this._output.showMessage("(empty)");return}try{let e=vt(this);this.dispatchEvent(new CustomEvent("execute",{detail:e})),this.state=g.running,this._toolbar.showRunning(),this._output.fadeOut();let s=await this.executor.execute(t,e);this.state=s.ok?g.succeded:g.failed,this._toolbar.showFinished(s),this._output.showResult(s),this.dispatchEvent(new CustomEvent("result",{detail:s}))}catch(e){this._fallback?(this._toolbar.showStatus(yt.fallback),this._output.showResult(this._fallback)):(this._toolbar.showFinished({}),this._output.showMessage(e.message)),console.error(e),this.state=g.failed,this.dispatchEvent(new CustomEvent("error",{detail:e}))}finally{this._output.fadeIn()}}}attributeChangedCallback(t,e,s){switch(t){case"engine":case"sandbox":case"command":case"template":case"files":let i=this.getAttribute("files");this.executor=new b({engine:this.getAttribute("engine"),sandbox:this.getAttribute("sandbox"),command:this.getAttribute("command"),template:this.getAttribute("template"),files:i?i.split(" "):null});break}}showStatus(t){this._toolbar.showStatus(t)}get syntax(){return this.getAttribute("syntax")||this.getAttribute("sandbox")}set syntax(t){this.setAttribute("syntax",t)}get selector(){return this.getAttribute("selector")}set selector(t){this.setAttribute("selector",t)}get editor(){return this.getAttribute("editor")||p.off}set editor(t){this.setAttribute("editor",t)}get code(){return this.snippet.value}set code(t){this.snippet.value=t}get state(){return this.getAttribute("state")}set state(t){this.setAttribute("state",t)}};L(v,"observedAttributes",["sandbox","engine","command","template","files"]);function vt(n){let t=new Set,e=[],s=(o,r)=>{if(!o)throw new Error(`#${r} dependency not found`);t.has(r)||(t.add(r),o.dependsOn&&o.dependsOn.split(" ").forEach(u=>{s(document.getElementById(u),u)}),e.push(o.code))};s(n,n.id);let i=n.hasAttribute("output-tail")?j.hr(n.syntax):"";return i?e.join(`
-${i}
-`):e.join(`
-`)}function At(n,t){if(t<=0){n();return}setTimeout(n,t)}window.customElements.get("codapi-snippet")||customElements.define("codapi-snippet",v);})();

frontend/highlight.min.js

@@ -345,4 +345,5 @@ disableAutodetect:!0,illegal:"</",contains:[].concat(_,p,m,[c,{
 begin:e.IDENT_RE+"::",keywords:u},{className:"class",
 beginKeywords:"enum class struct union",end:/[{;:<>=]/,contains:[{
 beginKeywords:"final class struct"},e.TITLE_MODE]}]),exports:{preprocessor:c,
-strings:l,keywords:u}}}})();hljs.registerLanguage("c",e)})();
+strings:l,keywords:u}}}})();hljs.registerLanguage("c",e)})();
+export default hljs;

frontend/index.html

@@ -4,10 +4,6 @@
     <meta charset="utf-8" />
     <title>Hare Playground</title>
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <script src="codapi.js"></script>
-    <script src="codapi-settings.js"></script>
-    <script src="highlight.min.js"></script>
-    <link rel="stylesheet" href="codapi.css" />
     <link rel="stylesheet" href="github.min.css" />
     <link rel="stylesheet" href="writ.min.css" />
     <link rel="stylesheet" href="style.css" />
@@ -21,10 +17,45 @@
       <a href="https://docs.harelang.org/">Standard Library Reference</a>
     </span>
 
-    <div class="editor language-c">Sorry, this playground requires JavaScript. :(</div>
+    <section class="toolbar">
+      <button
+        hx-post="/v1/exec"
+        hx-target=".code-output code"
+        hx-swap="innerHTML"
+        hx-vals="js:{code: getCode()}"
+        hx-ext="json-enc"
+      >
+        Run
+      </button>
 
-    <codapi-settings url="/v1"></codapi-settings>
-    <codapi-snippet sandbox="hare" editor="external" selector=".editor"></codapi-snippet>
+      <button id="share-button">
+        Share
+      </button>
+
+      <span id="htmx-indicator">
+            <svg width="1em" height="1em" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M12,4a8,8,0,0,1,7.89,6.7A1.53,1.53,0,0,0,21.38,12h0a1.5,1.5,0,0,0,1.48-1.75,11,11,0,0,0-21.72,0A1.5,1.5,0,0,0,2.62,12h0a1.53,1.53,0,0,0,1.49-1.3A8,8,0,0,1,12,4Z"><animateTransform attributeName="transform" type="rotate" dur="0.75s" values="0 12 12;360 12 12" repeatCount="indefinite"/></path></svg>
+      </span>
+      <span id="status" class="status"></span>
+    </section>
+    <section class="code">
+      <div class="editor language-c">Sorry, this playground requires JavaScript. :(</div>
+
+      <div class="code-output">
+        <div class="std-output">
+          Standard Error
+        </div>
+
+        <pre><code class="stderr"></code></pre>
+
+        <div class="std-output">
+          Standard Output
+        </div>
+
+        <pre><code class="stdout"></code></pre>
+      </div>
+    </div>
+
+    </section>
 
     <footer>
       <p>

frontend/running.svg

@@ -0,0 +1 @@
+            <svg width="1em" height="1em" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M12,4a8,8,0,0,1,7.89,6.7A1.53,1.53,0,0,0,21.38,12h0a1.5,1.5,0,0,0,1.48-1.75,11,11,0,0,0-21.72,0A1.5,1.5,0,0,0,2.62,12h0a1.53,1.53,0,0,0,1.49-1.3A8,8,0,0,1,12,4Z"><animateTransform attributeName="transform" type="rotate" dur="0.75s" values="0 12 12;360 12 12" repeatCount="indefinite"/></path></svg>

frontend/style.css

@@ -13,6 +13,9 @@ pre {
   background-color: transparent;
   border: none;
 }
+.code-output pre {
+  margin: 0;
+}
 
 body > footer {
   font-family: sans-serif;
@@ -28,11 +31,7 @@ a, a:visited {
   color: #008bf5;
 }
 
-codapi-snippet {
-  display: block;
-  margin: 10px 0;
-}
-codapi-snippet button {
+button {
   padding: 0;
   border: none;
   background: none;
@@ -40,19 +39,16 @@ codapi-snippet button {
   color: #008bf5;
   font-size: 16px;
   cursor: pointer;
+  margin-right: 10px;
 }
-codapi-toolbar button::after {
+button[hx-post]::after {
   content: " ▶";
 }
-codapi-toolbar a,
-codapi-toolbar a:visited {
-  color: #008bf5;
+button#share-button {
   border-bottom: 1px solid rgba(0, 139, 245, 0.2);
-  text-decoration: none;
-  font-size: 16px;
 }
 
-.editor {
+.editor, div.code-output {
   border-radius: 6px;
   box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 1px 5px 0 rgba(0, 0, 0, 0.12), 0 3px 1px -2px rgba(0, 0, 0, 0.2);
   font-family: 'Source Code Pro', monospace;
@@ -67,7 +63,47 @@ codapi-toolbar a:visited {
   tab-size: 8;
 }
 
-codapi-output {
+div.code-output {
+  position: relative;
+  display: block;
+  margin: 0;
+}
+
+.code-output a[href="#close"] {
+  position: absolute;
+  top: .25em;
+  right: .25em;
+  display: inline-block;
+  width: 1.5em;
+  height: 1.5em;
+  line-height: 1.5em;
+  text-align: center;
+}
+
+section.code {
+  display: flex;
+  flex-direction: row;
+  gap: 1em;
+
+  @media (max-width: 800px) {
+    flex-direction: column;
+  }
+}
+
+@media (min-width: 801px) {
+  div.editor, div.code-output {
+    width: 50vw;
+  }
+}
+div.editor, div.executor {
+  flex-grow: 1;
+}
+
+#htmx-indicator {
+    display:none;
+}
+
+.toolbar {
   border-radius: 6px;
   box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 1px 5px 0 rgba(0, 0, 0, 0.12), 0 3px 1px -2px rgba(0, 0, 0, 0.2);
   font-family: 'Source Code Pro', monospace;
@@ -78,8 +114,25 @@ codapi-output {
   padding: 10px;
   resize: none !important;
   tab-size: 4;
+  margin-bottom: 10px;
 }
 
-codapi-output pre {
-  margin: 0;
+.std-output {
+  color: #bbb;
+  text-align: center;
+  display: flex;
+}
+.std-output::before, .std-output::after {
+  flex: 1 1 auto;
+  margin: auto;
+  margin-right: auto;
+  border-top: 1px solid #bbb;
+  content: '';
+  box-sizing: border-box;
+}
+.std-output::before {
+  margin-right: 2%;
+}
+.std-output::after {
+  margin-left: 2%;
 }