From 72486b448c85c4e04aeafd521ebf1411eb2ea2ef Mon Sep 17 00:00:00 2001
From: Gregory Schier <gschier1990@gmail.com>
Date: Fri, 24 Feb 2023 16:43:47 -0800
Subject: [PATCH] Codemirror initial value support

---
 src-web/App.tsx                      | 86 +++++++++++++++++-----------
 src-web/components/Editor/Editor.tsx |  9 +--
 src-web/components/UrlBar.tsx        | 18 ++----
 src-web/hooks/useCodemirror.ts       | 15 +++--
 4 files changed, 71 insertions(+), 57 deletions(-)

diff --git a/src-web/App.tsx b/src-web/App.tsx
index d9313718..5dfa2072 100644
--- a/src-web/App.tsx
+++ b/src-web/App.tsx
@@ -1,4 +1,4 @@
-import { useState } from 'react';
+import { useEffect, useState } from 'react';
 import { invoke } from '@tauri-apps/api/tauri';
 import Editor from './components/Editor/Editor';
 import { HStack, VStack } from './components/Stacks';
@@ -8,6 +8,7 @@ import { IconButton } from './components/IconButton';
 import { Sidebar } from './components/Sidebar';
 import { UrlBar } from './components/UrlBar';
 import { Grid } from './components/Grid';
+import { motion } from 'framer-motion';
 
 interface Response {
   url: string;
@@ -20,16 +21,18 @@ interface Response {
 }
 
 function App() {
+  const [loading, setLoading] = useState<boolean>(false);
   const [error, setError] = useState<string | null>(null);
   const [response, setResponse] = useState<Response | null>(null);
   const [url, setUrl] = useState<string>('https://go-server.schier.dev/debug');
-  const [body, setBody] = useState<string>('');
+  const [body, setBody] = useState<string>(`{\n  "foo": "bar"\n}`);
   const [method, setMethod] = useState<{ label: string; value: string }>({
     label: 'GET',
     value: 'GET',
   });
 
   async function sendRequest() {
+    setLoading(true);
     setError(null);
 
     try {
@@ -44,11 +47,23 @@ function App() {
       setResponse(resp);
     } catch (err) {
       setError(`${err}`);
+    } finally {
+      setLoading(false);
     }
   }
 
   const contentType = response?.headers['content-type']?.split(';')[0] ?? 'text/plain';
 
+  useEffect(() => {
+    const listener = async (e: KeyboardEvent) => {
+      if (e.metaKey && (e.key === 'Enter' || e.key === 'r')) {
+        await sendRequest();
+      }
+    };
+    document.documentElement.addEventListener('keypress', listener);
+    return () => document.documentElement.removeEventListener('keypress', listener);
+  }, []);
+
   return (
     <>
       <div className="grid grid-cols-[auto_1fr] h-full">
@@ -60,15 +75,12 @@ function App() {
               <UrlBar
                 method={method}
                 url={url}
+                loading={loading}
                 onMethodChange={setMethod}
                 onUrlChange={setUrl}
                 sendRequest={sendRequest}
               />
-              <Editor
-                value={`{\n  "foo": "bar"\n}`}
-                contentType="application/json"
-                onChange={setBody}
-              />
+              <Editor initialValue={body} contentType="application/json" onChange={setBody} />
             </VStack>
           </VStack>
           <VStack className="w-full">
@@ -88,32 +100,40 @@ function App() {
                 <IconButton icon="gear" className="ml-auto" size="sm" />
               </Dropdown>
             </HStack>
-            <VStack className="pr-3 pl-1.5 py-3" space={3}>
-              {error && <div className="text-white bg-red-500 px-3 py-1 rounded">{error}</div>}
-              {response !== null && (
-                <>
-                  <HStack
-                    items="center"
-                    className="italic text-gray-500 text-sm w-full pointer-events-none h-10 mb-3 flex-shrink-0"
-                  >
-                    {response.status}
-                    &nbsp;&bull;&nbsp;
-                    {response.elapsed}ms &nbsp;&bull;&nbsp;
-                    {response.elapsed2}ms
-                  </HStack>
-                  {contentType.includes('html') ? (
-                    <iframe
-                      title="Response preview"
-                      srcDoc={response.body}
-                      sandbox="allow-scripts allow-same-origin"
-                      className="h-full w-full rounded-lg"
-                    />
-                  ) : response?.body ? (
-                    <Editor value={response?.body} contentType={contentType} />
-                  ) : null}
-                </>
-              )}
-            </VStack>
+            {(response || error) && (
+              <motion.div
+                animate={{ opacity: 1 }}
+                initial={{ opacity: 0 }}
+                className="w-full h-full"
+              >
+                <VStack className="pr-3 pl-1.5 py-3" space={3}>
+                  {error && <div className="text-white bg-red-500 px-3 py-1 rounded">{error}</div>}
+                  {response && (
+                    <>
+                      <HStack
+                        items="center"
+                        className="italic text-gray-500 text-sm w-full pointer-events-none h-10 mb-3 flex-shrink-0"
+                      >
+                        {response.status}
+                        &nbsp;&bull;&nbsp;
+                        {response.elapsed}ms &nbsp;&bull;&nbsp;
+                        {response.elapsed2}ms
+                      </HStack>
+                      {contentType.includes('html') ? (
+                        <iframe
+                          title="Response preview"
+                          srcDoc={response.body}
+                          sandbox="allow-scripts allow-same-origin"
+                          className="h-full w-full rounded-lg"
+                        />
+                      ) : response?.body ? (
+                        <Editor value={response?.body} contentType={contentType} />
+                      ) : null}
+                    </>
+                  )}
+                </VStack>
+              </motion.div>
+            )}
           </VStack>
         </Grid>
       </div>
diff --git a/src-web/components/Editor/Editor.tsx b/src-web/components/Editor/Editor.tsx
index fc8d20a9..630b6707 100644
--- a/src-web/components/Editor/Editor.tsx
+++ b/src-web/components/Editor/Editor.tsx
@@ -3,15 +3,12 @@ import './Editor.css';
 
 interface Props {
   contentType: string;
-  value: string;
+  initialValue?: string;
+  value?: string;
   onChange?: (value: string) => void;
 }
 
 export default function Editor(props: Props) {
-  const { ref } = useCodeMirror({
-    value: props.value,
-    contentType: props.contentType,
-    onChange: props.onChange,
-  });
+  const { ref } = useCodeMirror(props);
   return <div ref={ref} className="cm-wrapper" />;
 }
diff --git a/src-web/components/UrlBar.tsx b/src-web/components/UrlBar.tsx
index 5653ef9b..dd326ea2 100644
--- a/src-web/components/UrlBar.tsx
+++ b/src-web/components/UrlBar.tsx
@@ -1,30 +1,22 @@
-import { HStack } from './Stacks';
 import { DropdownMenuRadio } from './Dropdown';
 import { Button } from './Button';
 import { Input } from './Input';
-import { FormEvent, useState } from 'react';
+import { FormEvent } from 'react';
 import { IconButton } from './IconButton';
 
 interface Props {
-  sendRequest: () => Promise<void>;
+  sendRequest: () => void;
+  loading: boolean;
   method: { label: string; value: string };
   url: string;
   onMethodChange: (method: { label: string; value: string }) => void;
   onUrlChange: (url: string) => void;
 }
 
-export function UrlBar({ sendRequest, onMethodChange, method, onUrlChange, url }: Props) {
-  const [loading, setLoading] = useState(false);
-
+export function UrlBar({ sendRequest, loading, onMethodChange, method, onUrlChange, url }: Props) {
   const handleSendRequest = async (e: FormEvent<HTMLFormElement>) => {
     e.preventDefault();
-    if (loading) return;
-    setLoading(true);
-    try {
-      await sendRequest();
-    } finally {
-      setLoading(false);
-    }
+    sendRequest();
   };
 
   return (
diff --git a/src-web/hooks/useCodemirror.ts b/src-web/hooks/useCodemirror.ts
index 40a21890..20a9b907 100644
--- a/src-web/hooks/useCodemirror.ts
+++ b/src-web/hooks/useCodemirror.ts
@@ -96,11 +96,13 @@ const extensions = [
 ];
 
 export default function useCodeMirror({
+  initialValue,
   value,
   contentType,
   onChange,
 }: {
-  value: string;
+  initialValue?: string;
+  value?: string;
   contentType: string;
   onChange?: (value: string) => void;
 }) {
@@ -108,9 +110,12 @@ export default function useCodeMirror({
   const ref = useRef(null);
   useEffect(() => {
     if (ref.current === null) return;
-
-    const view = new EditorView({
+    const state = EditorState.create({
+      doc: initialValue,
       extensions: getExtensions({ contentType, onChange }),
+    });
+    const view = new EditorView({
+      state,
       parent: ref.current,
     });
 
@@ -123,11 +128,11 @@ export default function useCodeMirror({
     if (cm === null) return;
 
     const newState = EditorState.create({
-      doc: value,
+      doc: value ?? cm.state.doc,
       extensions: getExtensions({ contentType, onChange }),
     });
     cm.setState(newState);
-  }, [cm, value]);
+  }, [cm, contentType, value, onChange]);
 
   return { ref, cm };
 }