# Requirements Document

## Introduction

This specification defines the multi-selection and bulk action capabilities for the TaskBrowser component in the VFX Project Management System. The feature enables users to select multiple tasks simultaneously and perform batch operations such as status updates and assignment changes through a context menu interface.

## Glossary

- **TaskBrowser**: The data table component that displays tasks in a tabular format with filtering and sorting capabilities
- **Multi-selection**: The ability to select multiple rows (tasks) in the data table simultaneously using checkboxes
- **Context Menu**: A right-click dropdown menu that appears when tasks are selected, providing bulk action options
- **Bulk Action**: An operation that applies to multiple selected tasks simultaneously
- **Task Status**: The current state of a task (e.g., Not Started, In Progress, Complete, On Hold)
- **Task Assignment**: The association of a task with a specific user who is responsible for completing it

## Requirements

### Requirement 1

**User Story:** As a coordinator, I want to select multiple tasks in the TaskBrowser, so that I can perform bulk operations efficiently without updating tasks one by one.

#### Acceptance Criteria

1. WHEN the TaskBrowser loads THEN the system SHALL display a checkbox column as the first column in the data table
2. WHEN a user clicks a row checkbox THEN the system SHALL toggle the selection state for that specific task
3. WHEN a user clicks the header checkbox THEN the system SHALL toggle selection for all visible tasks in the current filtered view
4. WHEN tasks are selected THEN the system SHALL provide visual feedback by highlighting selected rows
5. WHEN the filter or search criteria changes THEN the system SHALL clear all current selections

### Requirement 2

**User Story:** As a coordinator, I want to see how many tasks I have selected, so that I can confirm the scope of my bulk action before executing it.

#### Acceptance Criteria

1. WHEN no tasks are selected THEN the system SHALL display the normal task count information
2. WHEN one or more tasks are selected THEN the system SHALL display the count of selected tasks prominently
3. WHEN tasks are selected THEN the system SHALL update the selection count immediately upon selection changes

### Requirement 3

**User Story:** As a coordinator, I want to right-click on selected tasks to open a context menu, so that I can access bulk action options intuitively.

#### Acceptance Criteria

1. WHEN a user right-clicks on a selected task row THEN the system SHALL display a context menu at the cursor position
2. WHEN a user right-clicks on an unselected task row THEN the system SHALL select that task and display the context menu
3. WHEN the context menu is open and the user clicks outside THEN the system SHALL close the context menu
4. WHEN no tasks are selected and the user right-clicks empty space THEN the system SHALL not display the context menu

### Requirement 4

**User Story:** As a coordinator, I want to change the status of multiple tasks at once through the context menu, so that I can efficiently update task progress across the project.

#### Acceptance Criteria

1. WHEN the context menu opens THEN the system SHALL display a "Set Status" option with a submenu of available status values
2. WHEN a user selects a status from the submenu THEN the system SHALL update all selected tasks to that status
3. WHEN the bulk status update completes successfully THEN the system SHALL display a success notification indicating the number of tasks updated
4. WHEN the bulk status update fails THEN the system SHALL display an error notification and maintain the original task states
5. WHEN the status update completes THEN the system SHALL refresh the task list to reflect the changes

### Requirement 5

**User Story:** As a coordinator, I want to assign multiple tasks to a user through the context menu, so that I can efficiently distribute work across the team.

#### Acceptance Criteria

1. WHEN the context menu opens THEN the system SHALL display an "Assign To" option with a submenu of available users
2. WHEN the "Assign To" submenu opens THEN the system SHALL display all project members who can be assigned tasks
3. WHEN a user selects an assignee from the submenu THEN the system SHALL update all selected tasks to be assigned to that user
4. WHEN the bulk assignment completes successfully THEN the system SHALL display a success notification indicating the number of tasks assigned
5. WHEN the bulk assignment fails THEN the system SHALL display an error notification and maintain the original assignments
6. WHEN the assignment update completes THEN the system SHALL refresh the task list to reflect the changes

### Requirement 6

**User Story:** As a coordinator, I want the context menu to close automatically after I perform an action, so that the interface remains clean and I can see the results of my operation.

#### Acceptance Criteria

1. WHEN a user completes a bulk action from the context menu THEN the system SHALL close the context menu automatically
2. WHEN a bulk action is in progress THEN the system SHALL disable the context menu options to prevent duplicate operations
3. WHEN a bulk action completes THEN the system SHALL clear the task selections

### Requirement 7

**User Story:** As a user, I want keyboard shortcuts for selection operations, so that I can work more efficiently without relying solely on mouse interactions.

#### Acceptance Criteria

1. WHEN a user presses Ctrl+A (or Cmd+A on Mac) while focused on the table THEN the system SHALL select all visible tasks
2. WHEN a user presses Escape while tasks are selected THEN the system SHALL clear all selections
3. WHEN a user clicks a task while holding Ctrl (or Cmd on Mac) THEN the system SHALL toggle that task's selection without affecting other selections
4. WHEN a user clicks a task while holding Shift THEN the system SHALL select all tasks between the last selected task and the clicked task
