Workspace Commands

namespace WorkspaceCommands {
  // File/Workspace Opening Commands
  const OPEN: Command & { dialogLabel: string };
  const OPEN_FILE: Command & { dialogLabel: string };
  const OPEN_FOLDER: Command & { dialogLabel: string };
  const OPEN_WORKSPACE: Command & { dialogLabel: string };
  const OPEN_RECENT_WORKSPACE: Command;
  const CLOSE: Command;

  // File Operations Commands
  const NEW_FILE: Command;
  const NEW_FOLDER: Command;
  const FILE_RENAME: Command;
  const FILE_DELETE: Command;
  const FILE_DUPLICATE: Command;
  const FILE_COMPARE: Command;
  const COPY_RELATIVE_FILE_PATH: Command;

  // Workspace Management Commands
  const ADD_FOLDER: Command;
  const REMOVE_FOLDER: Command;
  const SAVE_WORKSPACE_AS: Command;
  const OPEN_WORKSPACE_FILE: Command;
}

import { WorkspaceCommands } from "@theia/workspace/lib/browser";
import { CommandRegistry } from "@theia/core/lib/common";

// Execute workspace commands programmatically
registry.executeCommand(WorkspaceCommands.NEW_FILE.id);
registry.executeCommand(WorkspaceCommands.OPEN_WORKSPACE.id, workspaceUri);
registry.executeCommand(WorkspaceCommands.SAVE_WORKSPACE_AS.id);

class WorkspaceCommandContribution implements CommandContribution {
  /**
   * Event fired when a new file is created
   */
  readonly onDidCreateNewFile: Event<DidCreateNewResourceEvent>;
  
  /**
   * Event fired when a new folder is created  
   */
  readonly onDidCreateNewFolder: Event<DidCreateNewResourceEvent>;

  /**
   * Register all workspace commands with the command registry
   */
  registerCommands(registry: CommandRegistry): void;
  
  /**
   * Validate file name for creation operations
   * @param name - Proposed file name
   * @param parent - Parent directory
   * @param allowNested - Whether to allow nested path creation
   */
  protected validateFileName(name: string, parent: FileStat, allowNested?: boolean): Promise<string>;
}

import { injectable, inject } from "@theia/core/shared/inversify";
import { WorkspaceCommandContribution, DidCreateNewResourceEvent } from "@theia/workspace/lib/browser";
import { Disposable } from "@theia/core";

@injectable()
export class MyWorkspaceListener {
  
  @inject(WorkspaceCommandContribution)
  protected readonly workspaceCommands: WorkspaceCommandContribution;

  protected readonly disposables = new DisposableCollection();

  @postConstruct()
  initialize(): void {
    // Listen to file creation events
    this.disposables.push(
      this.workspaceCommands.onDidCreateNewFile(event => {
        console.log(`New file created: ${event.uri}`);
        console.log(`In directory: ${event.parent}`);
      })
    );

    // Listen to folder creation events  
    this.disposables.push(
      this.workspaceCommands.onDidCreateNewFolder(event => {
        console.log(`New folder created: ${event.uri}`);
        this.indexNewFolder(event.uri);
      })
    );
  }

  private indexNewFolder(uri: URI): void {
    // Custom logic for handling new folders
  }
}

class WorkspaceDeleteHandler implements UriCommandHandler<URI[]> {
  /**
   * Check if delete operation is visible for given URIs
   */
  isVisible(uris: URI[]): boolean;
  
  /**
   * Check if delete operation is enabled for given URIs
   */
  isEnabled(uris: URI[]): boolean;
  
  /**
   * Execute delete operation for given URIs
   */
  execute(uris: URI[]): Promise<void>;
}

class WorkspaceDuplicateHandler implements UriCommandHandler<URI[]> {
  /**
   * Check if duplicate operation is visible for given URIs
   */
  isVisible(uris: URI[]): boolean;
  
  /**
   * Check if duplicate operation is enabled for given URIs
   */
  isEnabled(uris: URI[]): boolean;
  
  /**
   * Execute duplicate operation for given URIs
   */
  execute(uris: URI[]): Promise<void>;
}

class WorkspaceCompareHandler implements UriCommandHandler<URI[]> {
  /**
   * Check if compare operation is visible for given URIs
   */
  isVisible(uris: URI[]): boolean;
  
  /**
   * Check if compare operation is enabled for given URIs
   */
  isEnabled(uris: URI[]): boolean;
  
  /**
   * Execute compare operation for given URIs
   */
  execute(uris: URI[]): Promise<void>;
}

import { injectable, inject } from "@theia/core/shared/inversify";
import { WorkspaceDeleteHandler, WorkspaceDuplicateHandler } from "@theia/workspace/lib/browser";
import URI from "@theia/core/lib/common/uri";

@injectable()
export class MyFileOperations {
  
  @inject(WorkspaceDeleteHandler)
  protected readonly deleteHandler: WorkspaceDeleteHandler;
  
  @inject(WorkspaceDuplicateHandler)
  protected readonly duplicateHandler: WorkspaceDuplicateHandler;

  async deleteFiles(fileUris: URI[]): Promise<void> {
    if (this.deleteHandler.isEnabled(fileUris)) {
      await this.deleteHandler.execute(fileUris);
    }
  }

  async duplicateFiles(fileUris: URI[]): Promise<void> {
    if (this.duplicateHandler.isEnabled(fileUris)) {
      await this.duplicateHandler.execute(fileUris);
    }
  }
}

class FileMenuContribution implements MenuContribution {
  /**
   * Register file menu entries for workspace operations
   */
  registerMenus(registry: MenuModelRegistry): void;
}

class EditMenuContribution implements MenuContribution {
  /**
   * Register edit menu entries for workspace operations
   */
  registerMenus(registry: MenuModelRegistry): void;
}

import { injectable } from "@theia/core/shared/inversify";
import { MenuContribution, MenuModelRegistry } from "@theia/core/lib/common";
import { WorkspaceCommands } from "@theia/workspace/lib/browser";

@injectable()
export class CustomWorkspaceMenuContribution implements MenuContribution {
  
  registerMenus(registry: MenuModelRegistry): void {
    // Add custom menu items to workspace menu
    registry.registerMenuAction(CommonMenus.FILE_NEW, {
      commandId: WorkspaceCommands.NEW_FILE.id,
      label: 'New File...',
      order: '10'
    });
    
    registry.registerMenuAction(['my-custom-menu'], {
      commandId: WorkspaceCommands.SAVE_WORKSPACE_AS.id,
      label: 'Save Workspace As...'
    });
  }
}

class WorkspaceRootUriAwareCommandHandler extends UriAwareCommandHandler<URI> {
  /**
   * Check if command is enabled for current context
   */
  isEnabled(...args: any[]): boolean;
  
  /**
   * Check if command is visible for current context
   */
  isVisible(...args: any[]): boolean;
  
  /**
   * Get URI from command arguments
   */
  protected getUri(...args: any[]): URI | undefined;
}

import { injectable, inject } from "@theia/core/shared/inversify";
import { WorkspaceRootUriAwareCommandHandler, WorkspaceService } from "@theia/workspace/lib/browser";
import { SelectionService } from "@theia/core/lib/common";

@injectable()
export class MyCustomCommandHandler extends WorkspaceRootUriAwareCommandHandler {
  
  constructor(
    @inject(WorkspaceService) workspaceService: WorkspaceService,
    @inject(SelectionService) selectionService: SelectionService
  ) {
    super(workspaceService, selectionService, {
      execute: (uri: URI) => this.executeCustomCommand(uri),
      isEnabled: (uri: URI) => this.isCustomCommandEnabled(uri),
      isVisible: (uri: URI) => this.isCustomCommandVisible(uri)
    });
  }

  private executeCustomCommand(uri: URI): void {
    console.log(`Executing custom command on workspace root: ${uri}`);
  }

  private isCustomCommandEnabled(uri: URI): boolean {
    return this.workspaceService.areWorkspaceRoots([uri]);
  }

  private isCustomCommandVisible(uri: URI): boolean {
    return true;
  }
}

class WorkspaceUtils {
  /**
   * Determine if root directory exists for a given array of URIs
   * @param uris - Array of URIs to check
   */
  containsRootDirectory(uris: URI[]): boolean;
}

import { injectable, inject } from "@theia/core/shared/inversify";
import { WorkspaceUtils } from "@theia/workspace/lib/browser";
import URI from "@theia/core/lib/common/uri";

@injectable()
export class MyWorkspaceValidator {
  
  @inject(WorkspaceUtils)
  protected readonly workspaceUtils: WorkspaceUtils;

  validateSelection(uris: URI[]): boolean {
    // Check if selection contains workspace root directories
    if (this.workspaceUtils.containsRootDirectory(uris)) {
      console.log("Selection contains workspace root directories");
      return false; // May want to prevent certain operations on roots
    }
    return true;
  }
}

class WorkspaceInputDialog extends SingleTextInputDialog {
  constructor(
    props: WorkspaceInputDialogProps,
    labelProvider: LabelProvider
  );
  
  /**
   * Append parent path information to dialog
   */
  protected appendParentPath(): void;
}

class WorkspaceInputDialogProps extends SingleTextInputDialogProps {
  /**
   * The parent URI for the selection present in the explorer.
   * Used to display the path in which the file/folder is created at.
   */
  parentUri: URI;
}

interface DidCreateNewResourceEvent {
  /** The URI of the created resource */
  uri: URI;
  /** The URI of the parent directory */
  parent: URI;
}

enum WorkspaceStates {
  /** The state is `empty` when no workspace is opened */
  empty = 'empty',
  /** The state is `workspace` when a workspace is opened */
  workspace = 'workspace',
  /** The state is `folder` when a folder is opened (1 folder) */
  folder = 'folder'
}

type WorkspaceState = keyof typeof WorkspaceStates;
type WorkbenchState = keyof typeof WorkspaceStates;

interface Command {
  id: string;
  category?: string;
  label?: string;
  iconClass?: string;
  tooltip?: string;
}

interface UriCommandHandler<T> {
  execute(uri: T, ...args: any[]): any;
  isVisible?(uri: T, ...args: any[]): boolean;
  isEnabled?(uri: T, ...args: any[]): boolean;
}