{"version":3,"file":"ngwr-confetti.mjs","sources":["../../../projects/lib/confetti/wr-confetti.ts","../../../projects/lib/confetti/ngwr-confetti.ts"],"sourcesContent":["/**\n * @license\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://github.com/thekhegay/ngwr/blob/main/LICENSE\n */\n\nimport { DOCUMENT } from '@angular/common';\nimport { Service, inject } from '@angular/core';\n\nimport { WrPlatform } from 'ngwr/platform';\n\nimport type { WrConfettiOptions } from './interfaces';\n\nconst DEFAULTS: Required = {\n count: 80,\n spread: 60,\n angle: 90,\n velocity: 12,\n gravity: 0.35,\n drag: 0.92,\n origin: { x: 0.5, y: 1 },\n colors: ['#3969e2', '#f51c6a', '#00a400', '#ffba00', '#fa383e'],\n size: 8,\n ttl: 180,\n};\n\ninterface Particle {\n x: number;\n y: number;\n vx: number;\n vy: number;\n rotation: number;\n rotationSpeed: number;\n color: string;\n size: number;\n ttl: number;\n}\n\n/**\n * Burst of celebratory confetti particles painted onto a single shared\n * full-viewport canvas. The canvas is created on first call and reused.\n *\n * @example\n * ```ts\n * const confetti = inject(WrConfetti);\n * confetti.fire();\n * confetti.fire({ count: 200, origin: { x: 0.25, y: 0.5 } });\n * ```\n *\n * @see https://ngwr.dev/animations/confetti\n */\n@Service()\nexport class WrConfetti {\n private readonly doc = inject(DOCUMENT);\n private readonly platform = inject(WrPlatform);\n\n private canvas: HTMLCanvasElement | null = null;\n private ctx: CanvasRenderingContext2D | null = null;\n private particles: Particle[] = [];\n private rafId: number | null = null;\n\n /** Spawn a confetti burst with the given (or default) options. */\n fire(options: WrConfettiOptions = {}): void {\n if (!this.platform.isBrowser) return;\n if (this.platform.prefersReducedMotion()) return;\n const opts: Required = { ...DEFAULTS, ...options };\n this.ensureCanvas();\n this.spawn(opts);\n this.rafId ??= requestAnimationFrame(() => this.tick());\n }\n\n // Internals\n\n private ensureCanvas(): void {\n if (this.canvas) return;\n const win = this.doc.defaultView;\n if (!win) return;\n const canvas = this.doc.createElement('canvas');\n canvas.style.position = 'fixed';\n canvas.style.inset = '0';\n canvas.style.width = '100%';\n canvas.style.height = '100%';\n canvas.style.pointerEvents = 'none';\n canvas.style.zIndex = '9999';\n canvas.setAttribute('aria-hidden', 'true');\n this.doc.body.appendChild(canvas);\n this.canvas = canvas;\n this.ctx = canvas.getContext('2d');\n this.resize();\n win.addEventListener('resize', () => this.resize());\n }\n\n private resize(): void {\n if (!this.canvas) return;\n const win = this.doc.defaultView;\n if (!win) return;\n const dpr = win.devicePixelRatio || 1;\n this.canvas.width = win.innerWidth * dpr;\n this.canvas.height = win.innerHeight * dpr;\n this.ctx?.setTransform(dpr, 0, 0, dpr, 0, 0);\n }\n\n private spawn(opts: Required): void {\n const win = this.doc.defaultView;\n if (!win) return;\n const cx = opts.origin.x * win.innerWidth;\n const cy = opts.origin.y * win.innerHeight;\n const halfSpread = (opts.spread / 2) * (Math.PI / 180);\n for (let i = 0; i < opts.count; i++) {\n // Launch direction: 90° = up (default), 0° = right — same convention\n // as canvas-confetti. Jitter spreads the cone around it.\n const base = (-opts.angle * Math.PI) / 180;\n const angle = base + (Math.random() - 0.5) * 2 * halfSpread;\n const speed = opts.velocity * (0.6 + Math.random() * 0.8);\n this.particles.push({\n x: cx,\n y: cy,\n vx: Math.cos(angle) * speed,\n vy: Math.sin(angle) * speed,\n rotation: Math.random() * Math.PI * 2,\n rotationSpeed: (Math.random() - 0.5) * 0.3,\n color: opts.colors[Math.floor(Math.random() * opts.colors.length)],\n size: opts.size * (0.8 + Math.random() * 0.6),\n ttl: opts.ttl,\n });\n }\n }\n\n private tick(): void {\n const ctx = this.ctx;\n const win = this.doc.defaultView;\n if (!ctx || !win) {\n this.rafId = null;\n return;\n }\n ctx.clearRect(0, 0, win.innerWidth, win.innerHeight);\n const next: Particle[] = [];\n for (const p of this.particles) {\n p.vx *= DEFAULTS.drag;\n p.vy = p.vy * DEFAULTS.drag + DEFAULTS.gravity;\n p.x += p.vx;\n p.y += p.vy;\n p.rotation += p.rotationSpeed;\n p.ttl -= 1;\n if (p.ttl <= 0 || p.y > win.innerHeight + 50) continue;\n next.push(p);\n ctx.save();\n ctx.translate(p.x, p.y);\n ctx.rotate(p.rotation);\n ctx.globalAlpha = Math.min(1, p.ttl / 60);\n ctx.fillStyle = p.color;\n ctx.fillRect(-p.size / 2, -p.size / 2, p.size, p.size * 0.6);\n ctx.restore();\n }\n this.particles = next;\n if (this.particles.length > 0) {\n this.rafId = requestAnimationFrame(() => this.tick());\n } else {\n this.rafId = null;\n }\n }\n}\n","/**\n * Generated bundle index. 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