feat: Register the project delete event (#802)

Signed-off-by: Sheng Chen <sheche@microsoft.com>

Author: jdneo

src/languageServerApi/languageServerApiManager.ts

@@ -65,6 +65,15 @@ class LanguageServerApiManager {
                 }));
             }
 
+            if (extensionApi.onDidProjectsDelete) {
+                const onDidProjectsDelete: Event<Uri[]> = extensionApi.onDidProjectsDelete;
+                contextManager.context.subscriptions.push(onDidProjectsDelete(() => {
+                    commands.executeCommand(Commands.VIEW_PACKAGE_INTERNAL_REFRESH, /* debounce = */true);
+                    syncHandler.updateFileWatcher(Settings.autoRefresh());
+                }));
+
+            }
+
             if (this.extensionApi?.serverMode === LanguageServerMode.LightWeight) {
                 if (extensionApi.onDidServerModeChange) {
                     const onDidServerModeChange: Event<string> = extensionApi.onDidServerModeChange;

src/views/dependencyDataProvider.ts

@@ -197,9 +197,7 @@ export class DependencyDataProvider implements TreeDataProvider<ExplorerNode> {
                     this._rootItems = rootItems;
                 }
             }
-            if (_.isEmpty(rootItems)) {
-                contextManager.setContextValue(Context.NO_JAVA_PROJECT, true);
-            }
+            contextManager.setContextValue(Context.NO_JAVA_PROJECT, _.isEmpty(rootItems));
             return rootItems;
         } finally {
             explorerLock.release();