Fix various things in the webview that don't work correctly in Agents window

src/commands.ts

@@ -33,7 +33,7 @@ import { PullRequestModel } from './github/pullRequestModel';
 import { PullRequestOverviewPanel } from './github/pullRequestOverview';
 import { chooseItem } from './github/quickPicks';
 import { RepositoriesManager } from './github/repositoriesManager';
-import { codespacesPrLink, getIssuesUrl, getPullsUrl, isInCodespaces, ISSUE_OR_URL_EXPRESSION, parseIssueExpressionOutput, vscodeDevPrLink } from './github/utils';
+import { codespacesPrLink, getIssuesUrl, getPullsUrl, isInCodespaces, ISSUE_OR_URL_EXPRESSION, parseIssueExpressionOutput, vscodeDevPrLink, vscodeDevPrLinkFromUrl } from './github/utils';
 import { BaseContext, OverviewContext } from './github/views';
 import { checkoutPRInWorktree } from './github/worktree';
 import { IssueChatContextItem } from './lm/issueContextProvider';
@@ -1915,6 +1915,9 @@ ${contents}
 
 	context.subscriptions.push(
 		vscode.commands.registerCommand('pr.copyVscodeDevPrLink', async (params: BaseContext | undefined) => {
+			if (params?.url) {
+				return vscode.env.clipboard.writeText(vscodeDevPrLinkFromUrl(params.url));
+			}
 			let pr: PullRequestModel | undefined;
 			if (params) {
 				pr = await reposManager.getManagerForRepository(params.owner, params.repo)?.resolvePullRequest(params.owner, params.repo, params.number, true);
@@ -1935,6 +1938,9 @@ ${contents}
 
 	context.subscriptions.push(
 		vscode.commands.registerCommand('pr.copyPrLink', async (params: BaseContext | undefined) => {
+			if (params?.url) {
+				return vscode.env.clipboard.writeText(params.url);
+			}
 			let item: PullRequestModel | IssueModel | undefined;
 			if (params) {
 				const folderManager = reposManager.getManagerForRepository(params.owner, params.repo);

src/extension.ts

@@ -49,7 +49,7 @@ import { CompareChanges } from './view/compareChangesTreeDataProvider';
 import { CreatePullRequestHelper } from './view/createPullRequestHelper';
 import { EmojiCompletionProvider } from './view/emojiCompletionProvider';
 import { FileTypeDecorationProvider } from './view/fileTypeDecorationProvider';
-import { GitHubCommitFileSystemProvider } from './view/githubFileContentProvider';
+import { getGitHubCommitFileSystemProvider } from './view/githubFileContentProvider';
 import { getInMemPRFileSystemProvider } from './view/inMemPRContentProvider';
 import { PullRequestChangesTreeDataProvider } from './view/prChangesTreeDataProvider';
 import { PullRequestsTreeDataProvider } from './view/prsTreeDataProvider';
@@ -495,7 +495,7 @@ async function deferredActivate(context: vscode.ExtensionContext, showPRControll
 	const readOnlyMessage = new vscode.MarkdownString(vscode.l10n.t('Cannot edit this pull request file. [Check out](command:pr.checkoutFromReadonlyFile) this pull request to edit.'));
 	readOnlyMessage.isTrusted = { enabledCommands: ['pr.checkoutFromReadonlyFile'] };
 	context.subscriptions.push(vscode.workspace.registerFileSystemProvider(Schemes.Pr, inMemPRFileSystemProvider, { isReadonly: readOnlyMessage }));
-	const githubFilesystemProvider = new GitHubCommitFileSystemProvider(reposManager, apiImpl, credentialStore);
+	const githubFilesystemProvider = getGitHubCommitFileSystemProvider({ reposManager, gitAPI: apiImpl, credentialStore })!;
 	context.subscriptions.push(vscode.workspace.registerFileSystemProvider(Schemes.GitHubCommit, githubFilesystemProvider, { isReadonly: new vscode.MarkdownString(vscode.l10n.t('GitHub commits cannot be edited')) }));
 	context.subscriptions.push(vscode.workspace.registerTextDocumentContentProvider(Schemes.CheckRunLog, new CheckRunLogContentProvider(reposManager)));
 

src/github/pullRequestOverview.ts

@@ -44,6 +44,7 @@ import { toOpenIssueWebviewUri } from '../common/uri';
 import { asPromise, formatError } from '../common/utils';
 import { IRequestMessage, PULL_REQUEST_OVERVIEW_VIEW_TYPE } from '../common/webview';
 import { toCheckRunLogUri } from '../view/checkRunLogContentProvider';
+import { getGitHubCommitFileSystemProvider } from '../view/githubFileContentProvider';
 
 export class PullRequestOverviewPanel extends IssueOverviewPanel<PullRequestModel> {
 	public static override ID: string = 'PullRequestOverviewPanel';
@@ -928,11 +929,17 @@ export class PullRequestOverviewPanel extends IssueOverviewPanel<PullRequestMode
 	private async openCommitChanges(message: IRequestMessage<OpenCommitChangesArgs>): Promise<void> {
 		try {
 			const { commitSha } = message.args;
+			const fileSystemProvider = getGitHubCommitFileSystemProvider();
+			if (!fileSystemProvider) {
+				throw new Error('GitHub commit file system provider is not initialized.');
+			}
+			fileSystemProvider.registerGitHubRepository(this._item.githubRepository);
 			await PullRequestModel.openCommitChanges(this._extensionUri, this._item.githubRepository, commitSha);
-			this._replyMessage(message, {});
+			await this._replyMessage(message, {});
 		} catch (error) {
 			Logger.error(`Failed to open commit changes: ${formatError(error)}`, PullRequestOverviewPanel.ID);
 			vscode.window.showErrorMessage(vscode.l10n.t('Failed to open commit changes: {0}', formatError(error)));
+			await this._throwError(message, formatError(error));
 		}
 	}
 

src/github/utils.ts

@@ -1974,7 +1974,11 @@ export async function findDotComAndEnterpriseRemotes(folderManagers: FolderRepos
 }
 
 export function vscodeDevPrLink(pullRequest: IssueModel) {
-	const itemUri = vscode.Uri.parse(pullRequest.html_url);
+	return vscodeDevPrLinkFromUrl(pullRequest.html_url);
+}
+
+export function vscodeDevPrLinkFromUrl(url: string) {
+	const itemUri = vscode.Uri.parse(url);
 	return `https://${vscode.env.appName.toLowerCase().includes('insider') ? 'insiders.' : ''}vscode.dev/github${itemUri.path}`;
 }
 

src/github/views.ts

@@ -219,7 +219,8 @@ export interface BaseContext {
 	owner: string;
 	repo: string;
 	number: number;
-	[key: string]: boolean | string | number;
+	url?: string;
+	[key: string]: boolean | string | number | undefined;
 }
 
 export interface OverviewContext extends BaseContext {

src/test/view/githubFileContentProvider.test.ts

@@ -0,0 +1,55 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { default as assert } from 'assert';
+import { createSandbox, SinonSandbox } from 'sinon';
+import { GitApiImpl } from '../../api/api1';
+import { toGitHubCommitUri } from '../../common/uri';
+import { CredentialStore } from '../../github/credentials';
+import { GitHubRepository } from '../../github/githubRepository';
+import { RepositoriesManager } from '../../github/repositoriesManager';
+import { GitHubCommitFileSystemProvider } from '../../view/githubFileContentProvider';
+
+describe('GitHubCommitFileSystemProvider', function () {
+	let sandbox: SinonSandbox;
+
+	beforeEach(function () {
+		sandbox = createSandbox();
+	});
+
+	afterEach(function () {
+		sandbox.restore();
+	});
+
+	it('reads from a registered repository without a workspace repository manager', async function () {
+		const credentialStore = {
+			isAnyAuthenticated: () => true,
+		} as unknown as CredentialStore;
+		const provider = new GitHubCommitFileSystemProvider(
+			{} as RepositoriesManager,
+			{} as GitApiImpl,
+			credentialStore,
+		);
+		const content = new TextEncoder().encode('content');
+		const getFile = sandbox.stub().resolves(content);
+		const repository = {
+			remote: {
+				owner: 'Owner',
+				repositoryName: 'Repo',
+			},
+			getFile,
+		} as unknown as GitHubRepository;
+		provider.registerGitHubRepository(repository);
+
+		const result = await provider.readFile(toGitHubCommitUri('file.ts', {
+			commit: 'commit',
+			owner: 'owner',
+			repo: 'repo',
+		}));
+
+		assert.deepStrictEqual(result, content);
+		assert.strictEqual(getFile.calledOnceWithExactly('/file.ts', 'commit'), true);
+	});
+});

src/view/githubFileContentProvider.ts

@@ -8,22 +8,34 @@ import { RepositoryFileSystemProvider } from './repositoryFileSystemProvider';
 import { GitApiImpl } from '../api/api1';
 import { fromGitHubCommitUri } from '../common/uri';
 import { CredentialStore } from '../github/credentials';
+import { GitHubRepository } from '../github/githubRepository';
 import { RepositoriesManager } from '../github/repositoriesManager';
 
 export class GitHubCommitFileSystemProvider extends RepositoryFileSystemProvider {
+	private readonly _gitHubRepositories = new Map<string, GitHubRepository>();
+
 	constructor(private readonly repos: RepositoriesManager, gitAPI: GitApiImpl, credentialStore: CredentialStore) {
 		super(gitAPI, credentialStore);
 	}
 
+	registerGitHubRepository(repository: GitHubRepository): void {
+		this._gitHubRepositories.set(this.repositoryKey(repository.remote.owner, repository.remote.repositoryName), repository);
+	}
+
 	override async readFile(uri: vscode.Uri): Promise<Uint8Array> {
 		await this.waitForAuth();
-		await this.waitForAnyGitHubRepos(this.repos);
 
 		const params = fromGitHubCommitUri(uri);
 		if (!params) {
 			throw new Error(`Invalid GitHub commit URI: ${uri.toString()}`);
 		}
 
+		const registeredRepository = this._gitHubRepositories.get(this.repositoryKey(params.owner, params.repo));
+		if (registeredRepository) {
+			return registeredRepository.getFile(uri.path, params.commit);
+		}
+
+		await this.waitForAnyGitHubRepos(this.repos);
 		const folderManager = this.repos.getManagerForRepository(params.owner, params.repo);
 		if (!folderManager) {
 			throw new Error(`Repository not found for owner: ${params.owner}, repo: ${params.repo}`);
@@ -36,4 +48,17 @@ export class GitHubCommitFileSystemProvider extends RepositoryFileSystemProvider
 
 		return githubRepo.getFile(uri.path, params.commit);
 	}
+
+	private repositoryKey(owner: string, repo: string): string {
+		return `${owner.toLowerCase()}/${repo.toLowerCase()}`;
+	}
+}
+
+let githubCommitFileSystemProvider: GitHubCommitFileSystemProvider | undefined;
+
+export function getGitHubCommitFileSystemProvider(initialize?: { reposManager: RepositoriesManager, gitAPI: GitApiImpl, credentialStore: CredentialStore }): GitHubCommitFileSystemProvider | undefined {
+	if (!githubCommitFileSystemProvider && initialize) {
+		githubCommitFileSystemProvider = new GitHubCommitFileSystemProvider(initialize.reposManager, initialize.gitAPI, initialize.credentialStore);
+	}
+	return githubCommitFileSystemProvider;
 }

webviews/components/header.tsx

@@ -84,7 +84,7 @@ interface TitleProps {
 }
 
 function Title({ title, titleHTML, number, url, inEditMode, setEditMode, setCurrentTitle, canEdit, owner, repo }: TitleProps): JSX.Element {
-	const { setTitle, copyPrLink } = useContext(PullRequestContext);
+	const { setTitle, copyPrLink, openOnGitHub } = useContext(PullRequestContext);
 
 	const titleForm = (
 		<form
@@ -116,7 +116,8 @@ function Title({ title, titleHTML, number, url, inEditMode, setEditMode, setCurr
 		'preventDefaultContextMenuItems': true,
 		owner,
 		repo,
-		number
+		number,
+		url,
 	};
 	context['github:copyMenu'] = true;
 
@@ -125,7 +126,15 @@ function Title({ title, titleHTML, number, url, inEditMode, setEditMode, setCurr
 			<h2>
 				<span dangerouslySetInnerHTML={{ __html: titleHTML }} />
 				{' '}
-				<a href={url} title={url} data-vscode-context={JSON.stringify(context)}>
+				<a
+					href={url}
+					title={url}
+					data-vscode-context={JSON.stringify(context)}
+					onClick={event => {
+						event.preventDefault();
+						void openOnGitHub();
+					}}
+				>
 					#{number}
 				</a>
 			</h2>

webviews/components/stickyHeader.tsx

@@ -32,7 +32,7 @@ export function useStickyHeader(titleRef: React.RefObject<HTMLDivElement | null>
 
 export function StickyHeader({ pr, visible }: { pr: PullRequest; visible: boolean }): JSX.Element {
 	const { text, color, icon } = getStatus(pr.state, !!pr.isDraft, pr.isIssue, pr.stateReason);
-	const { copyPrLink } = React.useContext(PullRequestContext);
+	const { copyPrLink, openOnGitHub } = React.useContext(PullRequestContext);
 
 	const stickyRef = React.useCallback((node: HTMLDivElement | null) => {
 		if (node) {
@@ -64,6 +64,10 @@ export function StickyHeader({ pr, visible }: { pr: PullRequest; visible: boolea
 						number: pr.number,
 						'github:copyMenu': true,
 					})}
+					onClick={event => {
+						event.preventDefault();
+						void openOnGitHub();
+					}}
 				>
 					#{pr.number}
 				</a>

webviews/editorWebview/test/overview.test.tsx

@@ -5,7 +5,7 @@
 
 import { default as assert } from 'assert';
 import * as React from 'react';
-import { cleanup, render } from 'react-testing-library';
+import { cleanup, fireEvent, render } from 'react-testing-library';
 import { createSandbox, SinonSandbox } from 'sinon';
 
 import { PRContext, default as PullRequestContext } from '../../common/context';
@@ -38,6 +38,27 @@ describe('Overview', function () {
 		assert(out.container.querySelector('.overview-title'));
 	});
 
+	it('opens PR number links on GitHub', function () {
+		const pr = new PullRequestBuilder().build();
+		const context = new PRContext(pr);
+		const openOnGitHub = sinon.stub(context, 'openOnGitHub');
+
+		const out = render(
+			<PullRequestContext.Provider value={context}>
+				<Overview {...pr} />
+			</PullRequestContext.Provider>,
+		);
+
+		const numberLinks = out.container.querySelectorAll('.overview-title a, .sticky-header-number');
+		assert.strictEqual(numberLinks.length, 2);
+		numberLinks.forEach(link => {
+			const contextData = JSON.parse(link.getAttribute('data-vscode-context')!);
+			assert.strictEqual(contextData.url, pr.url);
+			fireEvent.click(link);
+		});
+		assert.strictEqual(openOnGitHub.callCount, 2);
+	});
+
 	it('applies sticky class when scrolled', function () {
 		const pr = new PullRequestBuilder().build();
 		const context = new PRContext(pr);