Task Manager with Custom Key Bindings

Build a terminal-based task manager application that demonstrates custom keyboard shortcuts and input handling.

Requirements

Create a task list application with the following features:

Task List Display

Display a list of tasks, where each task has:

• A description (text)
• A status (pending or completed)

Keyboard Shortcuts

Implement the following keyboard shortcuts:

1. Add Task: Press a or n to add a new task. When triggered, show an input field where the user can type the task description. Press Enter to save, Escape to cancel.

2. Toggle Complete: Press space to toggle the completion status of the currently selected/focused task.

3. Delete Task: Press d or Delete to remove the currently selected/focused task.

4. Navigation: Support both j/k (vim-style) and arrow keys (up/down) for navigating between tasks in the list.

5. Quit: Press q or Ctrl+C to exit the application.

Visual Feedback

• Display a footer showing available keyboard shortcuts with their descriptions
• Group related shortcuts together in the footer (e.g., navigation shortcuts, task actions)
• Completed tasks should be visually distinct from pending tasks (e.g., strikethrough text or different color)

Starting State

The application should start with 3 sample tasks:

• "Buy groceries" (pending)
• "Write documentation" (completed)
• "Review pull request" (pending)

Test Cases

Your implementation should pass the following test cases:

• When the app starts, it displays 3 tasks with the correct initial statuses @test
• Pressing a activates the input field for adding a new task @test
• Pressing space toggles the selected task's completion status @test
• Pressing j moves selection down and k moves selection up @test

Implementation

@generates

API

from textual.app import App

class TaskManagerApp(App):
    """A task manager application with custom key bindings."""
    pass

Dependencies { .dependencies }

Textual { .dependency }

Modern Text User Interface framework for building terminal applications.

@satisfied-by