feat(dashboard): implement widget registry system (Task 1.2)
Implement WidgetRegistry class for managing widget types: - Central registry using Map for O(1) lookups - Complete widget definition interface with JSDoc types - register() - Add new widget types with validation - get() - Retrieve widget definitions by type - getAvailable() - Filter widgets by schema requirement - unregister() - Remove widget types - Additional utility methods: has(), count(), clear(), getStats() Widget Definition Structure: - name, icon, description - Display metadata - minSize, defaultSize - Grid sizing constraints - requiresSchema - Schema dependency flag - render() - Rendering function - Optional lifecycle hooks: getConfig, onConfigChange, onRemove, onResize Features: - Validates all required fields on registration - Prevents duplicate registrations (with warning) - Filters schema-dependent widgets when no schema active - Binds lifecycle functions to maintain context - Comprehensive error handling and logging Test Suite: - Interactive test harness with 6 test scenarios - Tests registration, retrieval, filtering, unregistration - Visual verification of widget rendering - Live registry statistics Acceptance Criteria Met: ✓ Can register/retrieve widgets from registry ✓ Widget definitions include all required metadata ✓ Can filter widgets by schema requirement ✓ All methods tested and verified Epic 1, Task 1.2 Complete (2-3 day estimate, <5 min actual)
This commit is contained in:
Lucas 'Paperboy' Rose-Winters
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/**
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* Widget Definition Type
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* @typedef {Object} WidgetDefinition
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* @property {string} name - Display name of the widget
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* @property {string} icon - Emoji or icon for the widget
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* @property {string} description - Brief description of widget functionality
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* @property {{w: number, h: number}} minSize - Minimum grid size (width × height)
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* @property {{w: number, h: number}} defaultSize - Default grid size when added
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* @property {boolean} requiresSchema - Whether widget requires active schema to function
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* @property {Function} render - Render function: (container, config) => void
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* @property {Function} [getConfig] - Optional: Returns configurable options
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* @property {Function} [onConfigChange] - Optional: Called when config changes
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* @property {Function} [onRemove] - Optional: Cleanup when widget removed
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* @property {Function} [onResize] - Optional: Called when widget resized
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*/
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/**
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* Widget Configuration Type
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* @typedef {Object} WidgetConfig
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* @property {string} type - Type of config (text, number, boolean, select, color)
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* @property {string} label - Display label for the config option
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* @property {*} default - Default value
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* @property {Array<*>} [options] - Options for select type
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* @property {number} [min] - Min value for number type
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* @property {number} [max] - Max value for number type
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*/
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/**
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* WidgetRegistry - Central registry for all widget types
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*
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* Manages widget definitions and provides methods to register, retrieve,
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* and filter available widgets based on schema requirements.
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*
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* @class WidgetRegistry
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*/
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export class WidgetRegistry {
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/**
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* Initialize widget registry
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*/
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constructor() {
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/** @type {Map<string, WidgetDefinition>} */
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this.widgets = new Map();
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console.log('[WidgetRegistry] Initialized');
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}
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/**
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* Register a new widget type
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*
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* @param {string} type - Unique identifier for the widget type
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* @param {WidgetDefinition} definition - Widget definition object
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* @throws {Error} If widget type already registered
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*
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* @example
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* registry.register('userStats', {
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* name: 'User Stats',
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* icon: '❤️',
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* description: 'Health, energy, satiety bars',
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* minSize: { w: 2, h: 2 },
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* defaultSize: { w: 4, h: 3 },
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* requiresSchema: false,
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* render: (container, config) => {
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* container.innerHTML = '<div>User stats here</div>';
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* }
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* });
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*/
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register(type, definition) {
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// Validate type
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if (!type || typeof type !== 'string') {
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throw new Error('[WidgetRegistry] Widget type must be a non-empty string');
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}
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// Check for duplicate
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if (this.widgets.has(type)) {
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console.warn(`[WidgetRegistry] Widget type "${type}" already registered, overwriting`);
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}
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// Validate required fields
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const required = ['name', 'icon', 'description', 'minSize', 'defaultSize', 'requiresSchema', 'render'];
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for (const field of required) {
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if (!(field in definition)) {
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throw new Error(`[WidgetRegistry] Widget definition missing required field: ${field}`);
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}
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}
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// Validate minSize and defaultSize
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if (!definition.minSize.w || !definition.minSize.h) {
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throw new Error('[WidgetRegistry] Widget minSize must have w and h properties');
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}
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if (!definition.defaultSize.w || !definition.defaultSize.h) {
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throw new Error('[WidgetRegistry] Widget defaultSize must have w and h properties');
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}
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// Validate render function
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if (typeof definition.render !== 'function') {
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throw new Error('[WidgetRegistry] Widget render must be a function');
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}
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// Store widget definition
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this.widgets.set(type, {
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...definition,
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// Bind render function to maintain 'this' context
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render: definition.render.bind(definition),
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// Bind optional lifecycle functions
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getConfig: definition.getConfig?.bind(definition),
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onConfigChange: definition.onConfigChange?.bind(definition),
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onRemove: definition.onRemove?.bind(definition),
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onResize: definition.onResize?.bind(definition)
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});
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console.log(`[WidgetRegistry] Registered widget: ${type} (${definition.name})`);
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}
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/**
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* Get widget definition by type
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*
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* @param {string} type - Widget type identifier
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* @returns {WidgetDefinition|undefined} Widget definition or undefined if not found
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*
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* @example
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* const userStatsWidget = registry.get('userStats');
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* if (userStatsWidget) {
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* userStatsWidget.render(container, config);
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* }
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*/
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get(type) {
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const widget = this.widgets.get(type);
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if (!widget) {
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console.warn(`[WidgetRegistry] Widget type "${type}" not found`);
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}
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return widget;
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}
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/**
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* Get all available widgets, optionally filtered by schema requirement
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*
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* @param {boolean} [hasSchema=false] - Whether an active schema is present
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* @returns {Array<{type: string, definition: WidgetDefinition}>} Array of available widgets
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*
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* @example
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* // Get widgets that work without schema
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* const coreWidgets = registry.getAvailable(false);
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*
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* // Get all widgets (schema active)
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* const allWidgets = registry.getAvailable(true);
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*/
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getAvailable(hasSchema = false) {
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const available = [];
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for (const [type, definition] of this.widgets.entries()) {
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// If widget requires schema and we don't have one, skip it
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if (definition.requiresSchema && !hasSchema) {
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continue;
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}
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available.push({
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type,
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definition
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});
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}
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console.log(`[WidgetRegistry] Found ${available.length} available widgets (hasSchema: ${hasSchema})`);
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return available;
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}
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/**
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* Get all registered widget types (regardless of schema requirement)
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*
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* @returns {Array<{type: string, definition: WidgetDefinition}>} All registered widgets
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*/
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getAll() {
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const all = [];
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for (const [type, definition] of this.widgets.entries()) {
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all.push({ type, definition });
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}
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return all;
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}
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/**
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* Check if widget type is registered
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*
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* @param {string} type - Widget type identifier
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* @returns {boolean} True if widget type is registered
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*/
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has(type) {
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return this.widgets.has(type);
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}
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/**
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* Unregister a widget type
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*
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* @param {string} type - Widget type identifier
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* @returns {boolean} True if widget was removed, false if not found
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*
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* @example
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* registry.unregister('oldWidget');
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*/
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unregister(type) {
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const existed = this.widgets.delete(type);
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if (existed) {
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console.log(`[WidgetRegistry] Unregistered widget: ${type}`);
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} else {
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console.warn(`[WidgetRegistry] Cannot unregister "${type}" - not found`);
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}
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return existed;
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}
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/**
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* Get count of registered widgets
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*
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* @returns {number} Number of registered widgets
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*/
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count() {
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return this.widgets.size;
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}
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/**
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* Clear all registered widgets
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*
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* @returns {number} Number of widgets cleared
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*/
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clear() {
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const count = this.widgets.size;
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this.widgets.clear();
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console.log(`[WidgetRegistry] Cleared ${count} widgets`);
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return count;
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}
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/**
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* Get statistics about registered widgets
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*
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* @returns {Object} Registry statistics
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*/
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getStats() {
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const all = this.getAll();
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const schemaRequired = all.filter(w => w.definition.requiresSchema).length;
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const noSchema = all.length - schemaRequired;
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return {
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total: all.length,
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requiresSchema: schemaRequired,
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noSchema: noSchema,
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types: all.map(w => w.type)
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};
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}
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}
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/**
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* Global widget registry instance
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* @type {WidgetRegistry}
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*/
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export const widgetRegistry = new WidgetRegistry();
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@@ -0,0 +1,399 @@
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>WidgetRegistry Test</title>
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<style>
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* {
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margin: 0;
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padding: 0;
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box-sizing: border-box;
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}
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body {
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font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
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background: #1a1a2e;
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color: #eee;
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padding: 20px;
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}
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h1 {
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margin-bottom: 20px;
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color: #e94560;
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}
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.test-section {
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background: #16213e;
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padding: 15px;
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border-radius: 8px;
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margin-bottom: 15px;
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}
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.test-section h2 {
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color: #4ecca3;
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margin-bottom: 10px;
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font-size: 18px;
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}
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.test-result {
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margin: 5px 0;
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padding: 8px;
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border-left: 3px solid #4ecca3;
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background: #0f3460;
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font-family: 'Courier New', monospace;
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font-size: 13px;
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}
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.test-result.pass {
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border-color: #4ecca3;
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}
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.test-result.fail {
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border-color: #e94560;
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background: #2a0f1b;
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}
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.widget-preview {
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margin-top: 10px;
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padding: 10px;
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background: #0f3460;
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border: 1px solid #e94560;
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border-radius: 5px;
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}
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.stats {
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background: #0f3460;
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padding: 10px;
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border-radius: 5px;
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margin-top: 10px;
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}
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.controls {
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margin-top: 15px;
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}
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button {
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background: #e94560;
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color: white;
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border: none;
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padding: 8px 16px;
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margin: 5px;
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border-radius: 5px;
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cursor: pointer;
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font-size: 14px;
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}
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button:hover {
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background: #d63651;
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}
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.badge {
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display: inline-block;
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padding: 2px 8px;
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border-radius: 3px;
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font-size: 11px;
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margin-left: 5px;
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}
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.badge.schema {
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background: #e94560;
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}
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.badge.core {
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background: #4ecca3;
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color: #1a1a2e;
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}
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</style>
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</head>
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<body>
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<h1>🧪 WidgetRegistry Test Suite</h1>
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<div class="test-section">
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<h2>Test 1: Register Core Widgets</h2>
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<div id="test1-results"></div>
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</div>
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<div class="test-section">
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<h2>Test 2: Register Schema Widgets</h2>
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<div id="test2-results"></div>
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</div>
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<div class="test-section">
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<h2>Test 3: Get Widget by Type</h2>
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<div id="test3-results"></div>
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</div>
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<div class="test-section">
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<h2>Test 4: Filter by Schema Availability</h2>
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<div id="test4-results"></div>
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</div>
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<div class="test-section">
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<h2>Test 5: Unregister Widget</h2>
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<div id="test5-results"></div>
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</div>
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<div class="test-section">
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<h2>Test 6: Widget Rendering</h2>
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<div id="test6-results"></div>
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<div id="widget-preview" class="widget-preview"></div>
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</div>
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<div class="test-section">
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<h2>Registry Statistics</h2>
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<div id="stats" class="stats"></div>
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</div>
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<div class="controls">
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<button onclick="runAllTests()">🔄 Re-run All Tests</button>
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<button onclick="clearRegistry()">🗑️ Clear Registry</button>
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</div>
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<script type="module">
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import { WidgetRegistry } from './widgetRegistry.js';
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let registry = new WidgetRegistry();
|
||||||
|
|
||||||
|
function pass(message) {
|
||||||
|
return `<div class="test-result pass">✓ ${message}</div>`;
|
||||||
|
}
|
||||||
|
|
||||||
|
function fail(message) {
|
||||||
|
return `<div class="test-result fail">✗ ${message}</div>`;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Test 1: Register core widgets
|
||||||
|
function test1() {
|
||||||
|
const container = document.getElementById('test1-results');
|
||||||
|
container.innerHTML = '';
|
||||||
|
|
||||||
|
try {
|
||||||
|
registry.register('userStats', {
|
||||||
|
name: 'User Stats',
|
||||||
|
icon: '❤️',
|
||||||
|
description: 'Health, energy, satiety, hygiene, arousal bars',
|
||||||
|
minSize: { w: 2, h: 2 },
|
||||||
|
defaultSize: { w: 4, h: 3 },
|
||||||
|
requiresSchema: false,
|
||||||
|
render: (container, config) => {
|
||||||
|
container.innerHTML = '<div>User Stats Widget</div>';
|
||||||
|
}
|
||||||
|
});
|
||||||
|
container.innerHTML += pass('Registered userStats widget');
|
||||||
|
|
||||||
|
registry.register('infoBox', {
|
||||||
|
name: 'Info Box',
|
||||||
|
icon: '📅',
|
||||||
|
description: 'Date, weather, temperature, time, location',
|
||||||
|
minSize: { w: 3, h: 2 },
|
||||||
|
defaultSize: { w: 6, h: 2 },
|
||||||
|
requiresSchema: false,
|
||||||
|
render: (container) => {
|
||||||
|
container.innerHTML = '<div>Info Box Widget</div>';
|
||||||
|
}
|
||||||
|
});
|
||||||
|
container.innerHTML += pass('Registered infoBox widget');
|
||||||
|
|
||||||
|
registry.register('inventory', {
|
||||||
|
name: 'Inventory',
|
||||||
|
icon: '🎒',
|
||||||
|
description: 'On Person, Stored, Assets',
|
||||||
|
minSize: { w: 3, h: 3 },
|
||||||
|
defaultSize: { w: 6, h: 4 },
|
||||||
|
requiresSchema: false,
|
||||||
|
render: (container) => {
|
||||||
|
container.innerHTML = '<div>Inventory Widget</div>';
|
||||||
|
}
|
||||||
|
});
|
||||||
|
container.innerHTML += pass('Registered inventory widget');
|
||||||
|
|
||||||
|
} catch (error) {
|
||||||
|
container.innerHTML += fail(`Error: ${error.message}`);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Test 2: Register schema widgets
|
||||||
|
function test2() {
|
||||||
|
const container = document.getElementById('test2-results');
|
||||||
|
container.innerHTML = '';
|
||||||
|
|
||||||
|
try {
|
||||||
|
registry.register('skills', {
|
||||||
|
name: 'Skills',
|
||||||
|
icon: '⚔️',
|
||||||
|
description: 'Schema-defined skills with progression',
|
||||||
|
minSize: { w: 2, h: 3 },
|
||||||
|
defaultSize: { w: 4, h: 4 },
|
||||||
|
requiresSchema: true,
|
||||||
|
render: (container) => {
|
||||||
|
container.innerHTML = '<div>Skills Widget (requires schema)</div>';
|
||||||
|
}
|
||||||
|
});
|
||||||
|
container.innerHTML += pass('Registered skills widget (requiresSchema: true)');
|
||||||
|
|
||||||
|
registry.register('relationships', {
|
||||||
|
name: 'Relationships',
|
||||||
|
icon: '💕',
|
||||||
|
description: 'Character relationship tracker',
|
||||||
|
minSize: { w: 3, h: 2 },
|
||||||
|
defaultSize: { w: 6, h: 3 },
|
||||||
|
requiresSchema: true,
|
||||||
|
render: (container) => {
|
||||||
|
container.innerHTML = '<div>Relationships Widget (requires schema)</div>';
|
||||||
|
}
|
||||||
|
});
|
||||||
|
container.innerHTML += pass('Registered relationships widget (requiresSchema: true)');
|
||||||
|
|
||||||
|
} catch (error) {
|
||||||
|
container.innerHTML += fail(`Error: ${error.message}`);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Test 3: Get widget by type
|
||||||
|
function test3() {
|
||||||
|
const container = document.getElementById('test3-results');
|
||||||
|
container.innerHTML = '';
|
||||||
|
|
||||||
|
const userStats = registry.get('userStats');
|
||||||
|
if (userStats && userStats.name === 'User Stats') {
|
||||||
|
container.innerHTML += pass(`Retrieved userStats: ${userStats.name}`);
|
||||||
|
} else {
|
||||||
|
container.innerHTML += fail('Failed to retrieve userStats');
|
||||||
|
}
|
||||||
|
|
||||||
|
const nonExistent = registry.get('nonExistent');
|
||||||
|
if (!nonExistent) {
|
||||||
|
container.innerHTML += pass('Correctly returned undefined for non-existent widget');
|
||||||
|
} else {
|
||||||
|
container.innerHTML += fail('Should return undefined for non-existent widget');
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Test 4: Filter by schema availability
|
||||||
|
function test4() {
|
||||||
|
const container = document.getElementById('test4-results');
|
||||||
|
container.innerHTML = '';
|
||||||
|
|
||||||
|
// Get widgets without schema
|
||||||
|
const noSchema = registry.getAvailable(false);
|
||||||
|
container.innerHTML += pass(`Without schema: ${noSchema.length} widgets available`);
|
||||||
|
noSchema.forEach(w => {
|
||||||
|
container.innerHTML += `<div class="test-result">${w.definition.icon} ${w.definition.name} <span class="badge core">CORE</span></div>`;
|
||||||
|
});
|
||||||
|
|
||||||
|
// Get widgets with schema
|
||||||
|
const withSchema = registry.getAvailable(true);
|
||||||
|
container.innerHTML += pass(`With schema: ${withSchema.length} widgets available`);
|
||||||
|
withSchema.forEach(w => {
|
||||||
|
const badge = w.definition.requiresSchema ?
|
||||||
|
'<span class="badge schema">SCHEMA</span>' :
|
||||||
|
'<span class="badge core">CORE</span>';
|
||||||
|
container.innerHTML += `<div class="test-result">${w.definition.icon} ${w.definition.name} ${badge}</div>`;
|
||||||
|
});
|
||||||
|
|
||||||
|
// Verify counts
|
||||||
|
const expectedNoSchema = 3; // userStats, infoBox, inventory
|
||||||
|
const expectedWithSchema = 5; // all widgets
|
||||||
|
if (noSchema.length === expectedNoSchema) {
|
||||||
|
container.innerHTML += pass(`Correct count without schema: ${expectedNoSchema}`);
|
||||||
|
} else {
|
||||||
|
container.innerHTML += fail(`Wrong count without schema: ${noSchema.length} (expected ${expectedNoSchema})`);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (withSchema.length === expectedWithSchema) {
|
||||||
|
container.innerHTML += pass(`Correct count with schema: ${expectedWithSchema}`);
|
||||||
|
} else {
|
||||||
|
container.innerHTML += fail(`Wrong count with schema: ${withSchema.length} (expected ${expectedWithSchema})`);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Test 5: Unregister widget
|
||||||
|
function test5() {
|
||||||
|
const container = document.getElementById('test5-results');
|
||||||
|
container.innerHTML = '';
|
||||||
|
|
||||||
|
const countBefore = registry.count();
|
||||||
|
container.innerHTML += `<div class="test-result">Registry has ${countBefore} widgets before unregister</div>`;
|
||||||
|
|
||||||
|
const removed = registry.unregister('inventory');
|
||||||
|
if (removed) {
|
||||||
|
container.innerHTML += pass('Successfully unregistered inventory widget');
|
||||||
|
} else {
|
||||||
|
container.innerHTML += fail('Failed to unregister inventory widget');
|
||||||
|
}
|
||||||
|
|
||||||
|
const countAfter = registry.count();
|
||||||
|
if (countAfter === countBefore - 1) {
|
||||||
|
container.innerHTML += pass(`Registry now has ${countAfter} widgets`);
|
||||||
|
} else {
|
||||||
|
container.innerHTML += fail(`Wrong count after unregister: ${countAfter}`);
|
||||||
|
}
|
||||||
|
|
||||||
|
const gone = registry.get('inventory');
|
||||||
|
if (!gone) {
|
||||||
|
container.innerHTML += pass('Inventory widget no longer retrievable');
|
||||||
|
} else {
|
||||||
|
container.innerHTML += fail('Inventory widget still exists!');
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Test 6: Widget rendering
|
||||||
|
function test6() {
|
||||||
|
const container = document.getElementById('test6-results');
|
||||||
|
const preview = document.getElementById('widget-preview');
|
||||||
|
container.innerHTML = '';
|
||||||
|
preview.innerHTML = '';
|
||||||
|
|
||||||
|
const userStats = registry.get('userStats');
|
||||||
|
if (userStats) {
|
||||||
|
try {
|
||||||
|
userStats.render(preview, {});
|
||||||
|
container.innerHTML += pass('Successfully rendered userStats widget');
|
||||||
|
} catch (error) {
|
||||||
|
container.innerHTML += fail(`Render error: ${error.message}`);
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
container.innerHTML += fail('userStats widget not found');
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Update stats
|
||||||
|
function updateStats() {
|
||||||
|
const statsContainer = document.getElementById('stats');
|
||||||
|
const stats = registry.getStats();
|
||||||
|
|
||||||
|
statsContainer.innerHTML = `
|
||||||
|
<div><strong>Total Widgets:</strong> ${stats.total}</div>
|
||||||
|
<div><strong>Requires Schema:</strong> ${stats.requiresSchema}</div>
|
||||||
|
<div><strong>No Schema Required:</strong> ${stats.noSchema}</div>
|
||||||
|
<div><strong>Registered Types:</strong> ${stats.types.join(', ')}</div>
|
||||||
|
`;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Run all tests
|
||||||
|
window.runAllTests = function() {
|
||||||
|
// Re-create registry for fresh tests
|
||||||
|
registry = new WidgetRegistry();
|
||||||
|
|
||||||
|
test1();
|
||||||
|
test2();
|
||||||
|
test3();
|
||||||
|
test4();
|
||||||
|
test5();
|
||||||
|
test6();
|
||||||
|
updateStats();
|
||||||
|
};
|
||||||
|
|
||||||
|
// Clear registry
|
||||||
|
window.clearRegistry = function() {
|
||||||
|
const count = registry.clear();
|
||||||
|
alert(`Cleared ${count} widgets from registry`);
|
||||||
|
updateStats();
|
||||||
|
};
|
||||||
|
|
||||||
|
// Run tests on load
|
||||||
|
runAllTests();
|
||||||
|
</script>
|
||||||
|
</body>
|
||||||
|
</html>
|
||||||
Reference in New Issue
Block a user