Skip selection of project when there is only one (#516)

Signed-off-by: Yan Zhang <yanzh@microsoft.com>

src/handlers/addDependencyHandler.ts

@@ -3,11 +3,11 @@
 
 import * as fse from "fs-extra";
 import * as vscode from "vscode";
-import { mavenExplorerProvider } from "../explorer/mavenExplorerProvider";
 import { MavenProject } from "../explorer/model/MavenProject";
 import { UserError } from "../utils/errorUtils";
 import { ElementNode, getNodesByTag, XmlTagName } from "../utils/lexerUtils";
 import { getArtifacts, IArtifactMetadata } from "../utils/requestUtils";
+import { selectProjectIfNecessary } from "../utils/uiUtils";
 
 export async function addDependencyHandler(options?: { pomPath?: string }): Promise<void> {
     let pomPath: string;
@@ -15,15 +15,7 @@ export async function addDependencyHandler(options?: { pomPath?: string }): Prom
         pomPath = options.pomPath;
     } else {
         // select a project(pomfile)
-        const selectedProject: MavenProject | undefined = await vscode.window.showQuickPick(
-            mavenExplorerProvider.mavenProjectNodes.map(item => ({
-                value: item,
-                label: `$(primitive-dot) ${item.name}`,
-                description: undefined,
-                detail: item.pomPath
-            })),
-            { placeHolder: "Select a Maven project ...", ignoreFocusOut: true }
-        ).then(item => item ? item.value : undefined);
+        const selectedProject: MavenProject | undefined = await selectProjectIfNecessary();
         if (!selectedProject) {
             return;
         }

src/handlers/runFavoriteCommandsHandler.ts

@@ -3,30 +3,21 @@
 
 import * as _ from "lodash";
 import * as vscode from "vscode";
-import { mavenExplorerProvider } from "../explorer/mavenExplorerProvider";
 import { MavenProject } from "../explorer/model/MavenProject";
 import { Settings } from "../Settings";
 import { executeInTerminal } from "../utils/mavenUtils";
+import { selectProjectIfNecessary } from "../utils/uiUtils";
 import { debugCommand } from "./debugHandler";
 
 type FavoriteCommand = { command: string, alias: string, debug?: boolean };
 export async function runFavoriteCommandsHandler(project: MavenProject | undefined): Promise<void> {
     let selectedProject: MavenProject | undefined = project;
     if (!selectedProject) {
-        selectedProject = await vscode.window.showQuickPick(
-            mavenExplorerProvider.mavenProjectNodes.map(item => ({
-                value: item,
-                label: `$(primitive-dot) ${item.name}`,
-                description: undefined,
-                detail: item.pomPath
-            })),
-            { placeHolder: "Select a Maven project ...", ignoreFocusOut: true }
-        ).then(item => item ? item.value : undefined);
+        selectedProject = await selectProjectIfNecessary();
+    }
     if (!selectedProject) {
         return;
     }
-    }
-
     const favorites: FavoriteCommand[] | undefined = Settings.Terminal.favorites(vscode.Uri.file(selectedProject.pomPath));
     if (!favorites || _.isEmpty(favorites)) {
         const BUTTON_OPEN_SETTINGS: string = "Open Settings";

src/utils/Utils.ts

@@ -17,6 +17,7 @@ import { getExtensionVersion, getPathToTempFolder, getPathToWorkspaceStorage } f
 import { MavenNotFoundError } from "./errorUtils";
 import { getLRUCommands, ICommandHistoryEntry } from "./historyUtils";
 import { executeInTerminal, getMaven, pluginDescription, rawEffectivePom } from "./mavenUtils";
+import { selectProjectIfNecessary } from "./uiUtils";
 
 export namespace Utils {
 
@@ -233,15 +234,7 @@ export namespace Utils {
 
     export async function executeMavenCommand(): Promise<void> {
         // select a project(pomfile)
-        const selectedProject: MavenProject | undefined = await window.showQuickPick(
-            mavenExplorerProvider.mavenProjectNodes.map(item => ({
-                value: item,
-                label: `$(primitive-dot) ${item.name}`,
-                description: undefined,
-                detail: item.pomPath
-            })),
-            { placeHolder: "Select a Maven project ...", ignoreFocusOut: true }
-        ).then(item => item ? item.value : undefined);
+        const selectedProject: MavenProject | undefined = await selectProjectIfNecessary();
         if (!selectedProject) {
             return;
         }

src/utils/uiUtils.ts

@@ -4,6 +4,8 @@
 import * as fs from "fs-extra";
 import * as vscode from "vscode";
 import { OpenDialogOptions, Uri, window } from "vscode";
+import { mavenExplorerProvider } from "../explorer/mavenExplorerProvider";
+import { MavenProject } from "../explorer/model/MavenProject";
 import { mavenOutputChannel } from "../mavenOutputChannel";
 
 const TROUBLESHOOTING_LINK: string = "https://github.com/Microsoft/vscode-maven/blob/master/Troubleshooting.md";
@@ -56,3 +58,21 @@ export async function showTroubleshootingDialog(errorMessage: string): Promise<v
         mavenOutputChannel.show();
     }
 }
+
+export async function selectProjectIfNecessary(): Promise< MavenProject | undefined> {
+    if (!mavenExplorerProvider.mavenProjectNodes || mavenExplorerProvider.mavenProjectNodes.length === 0) {
+        return undefined;
+    }
+    if (mavenExplorerProvider.mavenProjectNodes.length === 1) {
+        return mavenExplorerProvider.mavenProjectNodes[0];
+    }
+    return await window.showQuickPick(
+        mavenExplorerProvider.mavenProjectNodes.map(item => ({
+            value: item,
+            label: `$(primitive-dot) ${item.name}`,
+            description: undefined,
+            detail: item.pomPath
+        })),
+        { placeHolder: "Select a Maven project ...", ignoreFocusOut: true }
+    ).then(item => item ? item.value : undefined);
+}