Adding CodeMirror editor for code highlighting and editing

Removed previous code highlighter

Author: johnsimons

src/Frontend/package-lock.json

@@ -17,22 +17,26 @@
     "test:application": "npm run test:application:vitest"
   },
   "dependencies": {
+    "@codemirror/lang-json": "^6.0.1",
+    "@codemirror/lang-xml": "^6.1.0",
+    "@codemirror/legacy-modes": "^6.5.0",
     "@tinyhttp/content-disposition": "^2.2.2",
     "@vue-flow/core": "^1.41.5",
-    "@wdns/vue-code-block": "^2.3.3",
     "bootstrap": "^5.3.3",
     "bootstrap-icons": "^1.11.3",
-    "highlight.js": "^11.10.0",
+    "codemirror": "^6.0.1",
     "lossless-json": "^4.0.2",
     "memoize-one": "^6.0.0",
     "moment": "^2.30.1",
     "pinia": "^2.2.8",
     "vue": "^3.5.13",
+    "vue-codemirror6": "^1.3.12",
     "vue-router": "^4.4.5",
     "vue-tippy": "^6.5.0",
     "vue-toastification": "^2.0.0-rc.5",
     "vue3-cookies": "^1.0.6",
-    "vue3-simple-typeahead": "^1.0.11"
+    "vue3-simple-typeahead": "^1.0.11",
+    "xml-formatter": "^3.6.4"
   },
   "devDependencies": {
     "@eslint/js": "^9.13.0",

src/Frontend/package.json

@@ -0,0 +1,75 @@
+<script setup lang="ts">
+import CodeMirror from "vue-codemirror6";
+import { json } from "@codemirror/lang-json";
+import { xml } from "@codemirror/lang-xml";
+import { StreamLanguage } from "@codemirror/language";
+import { powerShell } from "@codemirror/legacy-modes/mode/powershell";
+import { shell } from "@codemirror/legacy-modes/mode/shell";
+import { csharp } from "@codemirror/legacy-modes/mode/clike";
+import { Extension } from "@codemirror/state";
+import { CodeLanguage } from "@/components/codeEditorTypes";
+import CopyToClipboard from "@/components/CopyToClipboard.vue";
+import { computed } from "vue";
+
+const code = defineModel<string>({ required: true });
+const props = withDefaults(
+  defineProps<{
+    language?: CodeLanguage;
+    readOnly?: boolean;
+    showGutter?: boolean;
+    showCopyToClipboard?: boolean;
+  }>(),
+  { readOnly: true, showGutter: true, showCopyToClipboard: true }
+);
+
+const extensions = computed(() => {
+  const extensions: Extension[] = [];
+
+  switch (props.language) {
+    case "json":
+      extensions.push(json());
+      break;
+    case "xml":
+      extensions.push(xml());
+      break;
+    case "shell":
+      extensions.push(StreamLanguage.define(shell));
+      break;
+    case "powershell":
+      extensions.push(StreamLanguage.define(powerShell));
+      break;
+    case "csharp":
+      extensions.push(StreamLanguage.define(csharp));
+      break;
+  }
+
+  return extensions;
+});
+</script>
+
+<template>
+  <div class="wrapper">
+    <div v-if="props.showCopyToClipboard" class="toolbar">
+      <CopyToClipboard :value="code" />
+    </div>
+    <CodeMirror v-model="code" :extensions="extensions" :basic="props.showGutter" :minimal="!props.showGutter" :readonly="props.readOnly" :gutter="!props.readOnly"></CodeMirror>
+  </div>
+</template>
+
+<style scoped>
+.wrapper {
+  border-radius: 0.5rem;
+  padding: 0.5rem;
+  border: 1px solid #ccc;
+  display: flex;
+  flex-direction: column;
+}
+.toolbar {
+  border-bottom: 1px solid #ccc;
+  padding-bottom: 0.5rem;
+  margin-bottom: 0.5rem;
+  display: flex;
+  flex-direction: row;
+  justify-content: end;
+}
+</style>

src/Frontend/src/components/CodeEditor.vue

@@ -0,0 +1,24 @@
+<script setup lang="ts">
+import { Tippy, TippyComponent } from "vue-tippy";
+import { useTemplateRef } from "vue";
+
+const props = defineProps<{
+  value: string;
+}>();
+
+const tippyRef = useTemplateRef<TippyComponent | null>("tippyRef");
+let timeoutId: number;
+
+async function copyToClipboard() {
+  await navigator.clipboard.writeText(props.value);
+  window.clearTimeout(timeoutId);
+  tippyRef.value?.show();
+  timeoutId = window.setTimeout(() => tippyRef.value?.hide(), 3000);
+}
+</script>
+
+<template>
+  <Tippy content="Copied" ref="tippyRef" trigger="manual">
+    <button type="button" class="btn btn-sm" @click="copyToClipboard"><i class="fa fa-copy"></i> Copy to clipboard</button>
+  </Tippy>
+</template>

src/Frontend/src/components/CopyToClipboard.vue

@@ -0,0 +1 @@
+export type CodeLanguage = "json" | "xml" | "shell" | "powershell" | "csharp";

src/Frontend/src/components/codeEditorTypes.ts

@@ -5,7 +5,7 @@ import ServiceControlNotAvailable from "../ServiceControlNotAvailable.vue";
 import { licenseStatus } from "@/composables/serviceLicense";
 import { connectionState, useServiceControlConnections } from "@/composables/serviceServiceControl";
 import BusyIndicator from "../BusyIndicator.vue";
-import VCodeBlock from "@wdns/vue-code-block";
+import CodeEditor from "@/components/CodeEditor.vue";
 
 const isExpired = licenseStatus.isExpired;
 
@@ -109,7 +109,7 @@ function switchJsonTab() {
               <section v-if="showCodeOnlyTab && !loading">
                 <div class="row">
                   <div class="col-12 h-100">
-                    <VCodeBlock :code="inlineSnippet" lang="csharp"></VCodeBlock>
+                    <CodeEditor :model-value="inlineSnippet" language="csharp" :show-gutter="false"></CodeEditor>
                   </div>
                 </div>
               </section>
@@ -119,11 +119,11 @@ function switchJsonTab() {
                   <div class="col-12 h-100">
                     <p>Note that when using JSON for configuration, you also need to change the endpoint configuration as shown below.</p>
                     <p><strong>Endpoint configuration:</strong></p>
-                    <VCodeBlock :code="jsonSnippet" lang="csharp"></VCodeBlock>
+                    <CodeEditor :model-value="jsonSnippet" language="csharp" :show-gutter="false"></CodeEditor>
                     <p style="margin-top: 15px">
                       <strong>JSON configuration file:</strong>
                     </p>
-                    <VCodeBlock :code="jsonConfig" lang="json"></VCodeBlock>
+                    <CodeEditor :model-value="jsonConfig" language="json" :show-gutter="false"></CodeEditor>
                   </div>
                 </div>
               </section>

src/Frontend/src/components/configuration/EndpointConnection.vue

@@ -5,6 +5,9 @@ import MessageHeader from "./EditMessageHeader.vue";
 import { EditAndRetryConfig } from "@/resources/Configuration";
 import type Header from "@/resources/Header";
 import { ExtendedFailedMessage } from "@/resources/FailedMessage";
+import parseContentType from "@/composables/contentTypeParser";
+import { CodeLanguage } from "@/components/codeEditorTypes";
+import CodeEditor from "@/components/CodeEditor.vue";
 
 interface HeaderWithEditing extends Header {
   isLocked: boolean;
@@ -28,6 +31,7 @@ interface LocalMessageState {
   isBodyChanged: boolean;
   isBodyEmpty: boolean;
   isContentTypeSupported: boolean;
+  language?: CodeLanguage;
   bodyContentType: string | undefined;
   bodyUnavailable: boolean;
   isEvent: boolean;
@@ -104,30 +108,6 @@ function getContentType() {
   return header?.value;
 }
 
-function isContentTypeSupported(contentType: string | undefined) {
-  if (contentType === undefined) return false;
-
-  if (contentType.startsWith("text/")) return true;
-
-  const charsetUtf8 = "; charset=utf-8";
-
-  if (contentType.endsWith(charsetUtf8)) {
-    contentType = contentType.substring(0, contentType.length - charsetUtf8.length);
-  }
-
-  if (contentType === "application/json") return true;
-
-  if (contentType.startsWith("application/")) {
-    // Some examples:
-    // application/atom+xml
-    // application/ld+json
-    // application/vnd.masstransit+json
-    if (contentType.endsWith("+json") || contentType.endsWith("+xml")) return true;
-  }
-
-  return false;
-}
-
 function getMessageIntent() {
   const intent = findHeadersByKey("NServiceBus.MessageIntent");
   return intent?.value;
@@ -167,7 +147,9 @@ function initializeMessageBodyAndHeaders() {
 
   const contentType = getContentType();
   localMessage.value.bodyContentType = contentType;
-  localMessage.value.isContentTypeSupported = isContentTypeSupported(contentType);
+  const parsedContentType = parseContentType(contentType);
+  localMessage.value.isContentTypeSupported = parsedContentType.isSupported;
+  localMessage.value.language = parsedContentType.language;
 
   const messageIntent = getMessageIntent();
   localMessage.value.isEvent = messageIntent === "Publish";
@@ -248,7 +230,9 @@ onMounted(() => {
                         </tbody>
                       </table>
                       <div role="tabpanel" v-if="panel === 2 && !localMessage.bodyUnavailable" style="height: calc(100% - 260px)">
-                        <textarea aria-label="message body" class="form-control" :disabled="!localMessage.isContentTypeSupported" v-model="localMessage.messageBody"></textarea>
+                        <div style="margin-top: 20px">
+                          <CodeEditor role="textbox" aria-label="message body" :read-only="!localMessage.isContentTypeSupported" v-model="localMessage.messageBody" :language="localMessage.language" :show-gutter="true"></CodeEditor>
+                        </div>
                         <span class="empty-error" v-if="localMessage.isBodyEmpty"><i class="fa fa-exclamation-triangle"></i> Message body cannot be empty</span>
                         <span class="reset-body" v-if="localMessage.isBodyChanged"><i class="fa fa-undo" v-tippy="`Reset changes`"></i> <a @click="resetBodyChanges()" href="javascript:void(0)">Reset changes</a></span>
                         <div class="alert alert-info" v-if="panel === 2 && localMessage.bodyUnavailable">{{ localMessage.bodyUnavailable }}</div>
@@ -369,9 +353,4 @@ onMounted(() => {
   overflow-y: auto;
   padding-right: 15px;
 }
-
-.modal-msg-editor :deep(textarea) {
-  height: 100%;
-  margin-top: 20px;
-}
 </style>

src/Frontend/src/components/failedmessages/EditRetryDialog.vue

@@ -11,3 +11,6 @@ onMounted(async () => {
   await router.push({ path: routeLinks.messages.message.link(id.toString()), query: { back: routeLinks.failedMessage.failedMessages.link } });
 });
 </script>
+<template>
+  <template></template>
+</template>

src/Frontend/src/components/failedmessages/MessageRedirectForBackwardsCompatibility.vue

@@ -1,15 +1,20 @@
 <script setup lang="ts">
 import { ExtendedFailedMessage } from "@/resources/FailedMessage";
-
+import { computed } from "vue";
+import CodeEditor from "@/components/CodeEditor.vue";
+import parseContentType from "@/composables/contentTypeParser";
 const props = defineProps<{
   message: ExtendedFailedMessage;
 }>();
+
+const contentType = computed(() => parseContentType(props.message.contentType));
 </script>
 
 <template>
   <div v-if="props.message.messageBodyNotFound" class="alert alert-info">Could not find message body. This could be because the message URL is invalid or the corresponding message was processed and is no longer tracked by ServiceControl.</div>
   <div v-else-if="props.message.bodyUnavailable" class="alert alert-info">Message body unavailable.</div>
-  <pre v-else>{{ props.message.messageBody }}</pre>
+  <CodeEditor v-else-if="contentType.isSupported" :model-value="props.message.messageBody" :language="contentType.language" :read-only="true" :show-gutter="true"></CodeEditor>
+  <div v-else class="alert alert-warning">Message body cannot be displayed because content type "{{ props.message.contentType }}" is not supported.</div>
 </template>
 
 <style scoped></style>