UAT: TUI LoadingThrobber widget missing — no rainbow gradient animated bar during actor processing #10370

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opened 2026-04-18 09:14:31 +00:00 by HAL9000 · 0 comments
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Summary

The TUI module is missing the LoadingThrobber widget entirely. The specification requires a LoadingThrobber widget that displays a rainbow gradient animated bar during actor processing. No such widget exists anywhere in src/cleveragents/tui/.

Expected Behavior (from spec)

A LoadingThrobber widget must exist in src/cleveragents/tui/widgets/ that:

  • Displays a rainbow gradient animated bar
  • Activates during actor processing (while the actor is running)
  • Deactivates when actor processing completes
  • Is exported from src/cleveragents/tui/widgets/__init__.py
  • Is composed into the main TUI app layout

Actual Behavior

  • No LoadingThrobber class exists anywhere in the codebase
  • src/cleveragents/tui/widgets/__init__.py exports no loading/throbber widget
  • The main app (src/cleveragents/tui/app.py) does not compose any loading indicator widget
  • git grep -rn "LoadingThrobber\|throbber\|rainbow" -- "*.py" returns no results in TUI code
  • Users have no visual indication that the actor is processing their request

Reproduction Steps

  1. Clone the repository
  2. Inspect src/cleveragents/tui/widgets/ — no loading_throbber.py or similar file exists
  3. Search codebase: git grep -rn "LoadingThrobber" -- "*.py" — returns no results
  4. Run the TUI and submit a message — no loading animation appears during processing

Impact

Users have no visual feedback that the actor is processing. This creates a poor UX where the interface appears frozen during long-running operations. This is a core UX requirement for the TUI milestone (v3.7.0).

Subtasks

  • Create src/cleveragents/tui/widgets/loading_throbber.py with LoadingThrobber widget class
  • Implement rainbow gradient animation using Textual's animation system
  • Export LoadingThrobber from src/cleveragents/tui/widgets/__init__.py
  • Compose LoadingThrobber into _TextualCleverAgentsTuiApp.compose() in app.py
  • Wire actor processing start/stop events to show/hide the throbber
  • Add Behave BDD scenarios for loading state display
  • Add unit tests for LoadingThrobber widget

Definition of Done

  • LoadingThrobber widget exists in src/cleveragents/tui/widgets/loading_throbber.py
  • Widget displays a rainbow gradient animated bar
  • Widget activates when actor starts processing and deactivates when done
  • Widget is exported from __init__.py and composed in app.py
  • BDD scenarios cover loading state activation and deactivation
  • nox -s unit_tests passes with ≥97% coverage

Metadata

  • Commit Message: fix(tui): add missing LoadingThrobber widget with rainbow gradient animation
  • Branch: fix/uat-tui-loading-throbber-missing

Background and Context

UAT testing identified that the LoadingThrobber widget specified in the TUI architecture is entirely absent from the codebase. The widget is required by the v3.7.0 TUI milestone specification and must provide visual feedback to users during actor processing. Without it, the TUI appears frozen during long-running operations, creating a poor user experience.

Acceptance Criteria

  • LoadingThrobber class exists in src/cleveragents/tui/widgets/loading_throbber.py
  • Widget displays a rainbow gradient animated bar during actor processing
  • Widget is exported from src/cleveragents/tui/widgets/__init__.py
  • Widget is composed into the main TUI app layout in app.py
  • Widget activates on actor processing start and deactivates on completion
  • BDD scenarios cover loading state activation and deactivation
  • nox -s unit_tests passes with ≥97% coverage

Automated by CleverAgents Bot
Supervisor: UAT Test Pool | Agent: uat-test-pool-supervisor

## Summary The TUI module is missing the `LoadingThrobber` widget entirely. The specification requires a `LoadingThrobber` widget that displays a rainbow gradient animated bar during actor processing. No such widget exists anywhere in `src/cleveragents/tui/`. ## Expected Behavior (from spec) A `LoadingThrobber` widget must exist in `src/cleveragents/tui/widgets/` that: - Displays a rainbow gradient animated bar - Activates during actor processing (while the actor is running) - Deactivates when actor processing completes - Is exported from `src/cleveragents/tui/widgets/__init__.py` - Is composed into the main TUI app layout ## Actual Behavior - No `LoadingThrobber` class exists anywhere in the codebase - `src/cleveragents/tui/widgets/__init__.py` exports no loading/throbber widget - The main app (`src/cleveragents/tui/app.py`) does not compose any loading indicator widget - `git grep -rn "LoadingThrobber\|throbber\|rainbow" -- "*.py"` returns no results in TUI code - Users have no visual indication that the actor is processing their request ## Reproduction Steps 1. Clone the repository 2. Inspect `src/cleveragents/tui/widgets/` — no `loading_throbber.py` or similar file exists 3. Search codebase: `git grep -rn "LoadingThrobber" -- "*.py"` — returns no results 4. Run the TUI and submit a message — no loading animation appears during processing ## Impact Users have no visual feedback that the actor is processing. This creates a poor UX where the interface appears frozen during long-running operations. This is a core UX requirement for the TUI milestone (v3.7.0). ## Subtasks - [ ] Create `src/cleveragents/tui/widgets/loading_throbber.py` with `LoadingThrobber` widget class - [ ] Implement rainbow gradient animation using Textual's animation system - [ ] Export `LoadingThrobber` from `src/cleveragents/tui/widgets/__init__.py` - [ ] Compose `LoadingThrobber` into `_TextualCleverAgentsTuiApp.compose()` in `app.py` - [ ] Wire actor processing start/stop events to show/hide the throbber - [ ] Add Behave BDD scenarios for loading state display - [ ] Add unit tests for `LoadingThrobber` widget ## Definition of Done - `LoadingThrobber` widget exists in `src/cleveragents/tui/widgets/loading_throbber.py` - Widget displays a rainbow gradient animated bar - Widget activates when actor starts processing and deactivates when done - Widget is exported from `__init__.py` and composed in `app.py` - BDD scenarios cover loading state activation and deactivation - `nox -s unit_tests` passes with ≥97% coverage ## Metadata - **Commit Message**: `fix(tui): add missing LoadingThrobber widget with rainbow gradient animation` - **Branch**: `fix/uat-tui-loading-throbber-missing` ## Background and Context UAT testing identified that the `LoadingThrobber` widget specified in the TUI architecture is entirely absent from the codebase. The widget is required by the v3.7.0 TUI milestone specification and must provide visual feedback to users during actor processing. Without it, the TUI appears frozen during long-running operations, creating a poor user experience. ## Acceptance Criteria - [ ] `LoadingThrobber` class exists in `src/cleveragents/tui/widgets/loading_throbber.py` - [ ] Widget displays a rainbow gradient animated bar during actor processing - [ ] Widget is exported from `src/cleveragents/tui/widgets/__init__.py` - [ ] Widget is composed into the main TUI app layout in `app.py` - [ ] Widget activates on actor processing start and deactivates on completion - [ ] BDD scenarios cover loading state activation and deactivation - [ ] `nox -s unit_tests` passes with ≥97% coverage --- **Automated by CleverAgents Bot** Supervisor: UAT Test Pool | Agent: uat-test-pool-supervisor
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cleveragents/cleveragents-core#10370
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