Revert "hide formatter setting entries (#632)" (#635)

This reverts commit 57a94ff.

Author: CsCherrYY

package.json

@@ -50,7 +50,8 @@
     "onWebviewPanel:java.welcome",
     "onCommand:java.classpathConfiguration",
     "onWebviewPanel:java.classpathConfiguration",
-    "onWebviewPanel:java.markdownPreview"
+    "onWebviewPanel:java.markdownPreview",
+    "onCommand:java.formatterSettings"
   ],
   "contributes": {
     "walkthroughs": [
@@ -193,6 +194,11 @@
         "command": "java.extGuide",
         "category": "Java",
         "title": "Extension Guide"
+      },
+      {
+        "command": "java.formatterSettings",
+        "category": "Java",
+        "title": "Open Java Formatter Settings with Preview"
       }
     ],
     "configuration": {
@@ -248,7 +254,19 @@
           "when": "view == javaProjectExplorer && viewItem =~ /java:project(?=.*?\\b\\+unmanagedFolder\\b)(?=.*?\\b\\+uri\\b)/"
         }
       ]
-    }
+    },
+    "customEditors": [
+      {
+        "viewType": "java.formatterSettingsEditor",
+        "displayName": "Java Formatter Settings Editor",
+        "selector": [
+          {
+            "filenamePattern": "*.xml"
+          }
+        ],
+        "priority": "option"
+      }
+    ]
   },
   "scripts": {
     "vscode:prepublish": "npm run build",

src/commands/index.ts

@@ -15,6 +15,7 @@ import { showClasspathConfigurationPage } from "../classpath/classpathConfigurat
 import { markdownPreviewProvider } from "../classpath/markdownPreviewProvider";
 import { getExpService } from "../exp";
 import { TreatmentVariables } from "../exp/TreatmentVariables";
+import { javaFormatterSettingsEditorProvider } from "../formatter-settings";
 
 export function initialize(context: vscode.ExtensionContext) {
   context.subscriptions.push(vscode.commands.registerCommand("java.overview", instrumentCommand(context, "java.overview", instrumentCommand(context, "java.helper.overview", overviewCmdHandler))));
@@ -31,6 +32,7 @@ export function initialize(context: vscode.ExtensionContext) {
   context.subscriptions.push(vscode.commands.registerCommand("java.extGuide", instrumentCommand(context, "java.extGuide", javaExtGuideCmdHandler)));
   context.subscriptions.push(instrumentOperationAsVsCodeCommand("java.webview.runCommand", webviewCmdLinkHandler));
   context.subscriptions.push(vscode.commands.registerCommand("java.welcome", instrumentCommand(context, "java.welcome", showWelcomeWebview)));
+  context.subscriptions.push(vscode.commands.registerCommand("java.formatterSettings", instrumentCommand(context, "java.formatterSettings", () => javaFormatterSettingsEditorProvider.showFormatterSettingsEditor())));
   context.subscriptions.push(vscode.commands.registerCommand("java.classpathConfiguration", instrumentCommand(context, "java.classpathConfiguration", async () => {
     const showCustomizedView: boolean = await getExpService()?.getTreatmentVariableAsync(TreatmentVariables.VSCodeConfig, TreatmentVariables.CustomizedClasspathConfigurationView, true /*checkCache*/) || false;
     if (showCustomizedView) {