# Functional Capabilities
## Architectural Features of the ResponsiveTable Component

This document provides a high-level overview of the technical capabilities and architectural patterns integrated into the ResponsiveTable component.

## Table of Contents
*   [Automated Layout Orchestration](#automated-layout-orchestration)
*   [Asynchronous Data Stream Support](#asynchronous-data-stream-support)
*   [Progressive Row Disclosure](#progressive-row-disclosure)
*   [Persistent Plugin Lifecycle](#persistent-plugin-lifecycle)
*   [Structural Alignment Management](#structural-alignment-management)

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### Automated Layout Orchestration
ResponsiveTable performs real-time viewport analysis to transition between a standard tabular structure and an optimized card-based mobile interface. This ensures data density is managed appropriately for the available screen real estate.
*   [Implementation Example: Standard Tabular Implementation](./examples.md#1-standard-tabular-implementation)

### Asynchronous Data Stream Support
Native integration for high-volume data sets via an infinite scrolling orchestrator. The component handles event interception, asynchronous state transitions, and subsequent data integration without disrupting the internal processing pipeline. Supports both client-side and server-side filtering modes. The `dataSource` pattern provides full external observability via callbacks and imperative handles.
*   [Implementation Example: Asynchronous Infinite Scroll](./examples.md#8-high-volume-data-asynchronous-infinite-scroll)
*   [Implementation Example: Server-Side Search](./examples.md#10-server-side-search-with-datasource)
*   [State Observability via Callbacks](./examples.md#11-observing-datasource-state-callbacks)

### Error Resilience
Automatic error detection and recovery for `dataSource` operations. When a fetch fails, the component surfaces the error with a retry mechanism, accessible both through the UI and programmatically.
*   [Implementation Example: Error Handling and Retry](./examples.md#13-error-handling-and-retry)

### Progressive Row Disclosure
The component supports collapsible detail panels attached below any row. A chevron toggle bar is rendered automatically when `expandRowRenderer` returns content for a row; returning `null` suppresses the toggle entirely for that row. Detail components are lazy-mounted — not instantiated until first expand — and stay mounted thereafter so the collapse animation plays correctly and component state is preserved across open/close cycles. Expand state is keyed by a stable row identifier when `selectionProps.rowIdKey` is provided, ensuring open panels survive re-sorts and filter changes. The feature operates identically in desktop table and mobile card layouts and composes transparently with selection, `onRowClick`, and `dataSource`.
*   [Full Implementation Guide: Row Expansion and Collapse](./expand-collapse.md)
*   [Implementation Example: Expandable Rows](./examples.md#14-expandable-rows)

### Persistent Plugin Lifecycle
The component features a robust internal lifecycle management system for plugins. State for sorting, filtering, and selection is persisted across re-renders and data updates using non-reactive references, optimizing performance and ensuring data consistency.
*   [Implementation Example: Sortable Columns](./examples.md#2-implementing-sortable-columns)

### Structural Alignment Management
Integrated logic for intelligent layout scaling automatically recalculates footer ranges. This ensures that column-level visibility toggles do not compromise the structural integrity or visual alignment of complex data grids.
*   [Implementation Example: Column Visibility](./examples.md#6-programmatic-column-visibility-management)

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