{"version":3,"file":"ngwr-rating.mjs","sources":["../../../projects/lib/rating/rating.ts","../../../projects/lib/rating/rating.html","../../../projects/lib/rating/ngwr-rating.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 { coerceBooleanProperty, coerceNumberProperty } from '@angular/cdk/coercion';\nimport { Component, ViewEncapsulation, computed, forwardRef, input, signal } from '@angular/core';\nimport { type ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms';\n\nimport { clamp, noop } from 'ngwr/utils';\n\n/**\n * Star rating input. Click or hover to set a value; supports half-star\n * increments via `step=\"0.5\"`. Implements `ControlValueAccessor` — value\n * is `number | null` (clamped to `[0, count]`).\n *\n * Keyboard: `←` / `→` bump by `step`, `Home` / `End` jump to 0 / max.\n * Clicking the current value clears it (toggle off).\n *\n * @example\n * ```html\n * \n * \n * \n * ```\n *\n * @see https://ngwr.dev/components/rating\n */\nexport type WrRatingSize = 'sm' | 'md' | 'lg';\n\n@Component({\n selector: 'wr-rating',\n templateUrl: './rating.html',\n encapsulation: ViewEncapsulation.None,\n host: { '[class]': 'classes()' },\n providers: [\n {\n provide: NG_VALUE_ACCESSOR,\n // eslint-disable-next-line @angular-eslint/no-forward-ref\n useExisting: forwardRef(() => WrRating),\n multi: true,\n },\n ],\n})\nexport class WrRating implements ControlValueAccessor {\n /** Total number of slots. @default 5 */\n readonly count = input(5, { transform: (v: unknown): number => Math.max(1, coerceNumberProperty(v, 5)) });\n\n /** Step granularity — `1` for whole stars, `0.5` for halves. @default 1 */\n readonly step = input(1 as 0.5 | 1, {\n transform: (v: unknown): 0.5 | 1 => (Number(v) === 0.5 ? 0.5 : 1),\n });\n\n /** Read-only — value is displayed but not interactive. @default false */\n readonly readonly = input(false, { transform: coerceBooleanProperty });\n\n /** Disable interaction. @default false */\n readonly disabled = input(false, { transform: coerceBooleanProperty });\n\n /** Control size — scales the icons + gaps. @default 'md' */\n readonly size = input('md');\n\n /** Accessible label. @default 'Rating' */\n readonly ariaLabel = input('Rating');\n\n /** Last committed value (mirrored from the CVA). */\n protected readonly value = signal(null);\n\n /** Transient hover preview — overrides `value` for display when set. */\n protected readonly hoverValue = signal(null);\n\n private readonly disabledFromCva = signal(false);\n\n protected readonly effectiveDisabled = computed(() => this.disabled() || this.disabledFromCva());\n\n protected readonly interactive = computed(() => !this.effectiveDisabled() && !this.readonly());\n\n /** What we actually render — hover wins while hovering. */\n protected readonly displayValue = computed(() => this.hoverValue() ?? this.value() ?? 0);\n\n protected readonly slots = computed(() => Array.from({ length: this.count() }, (_, i) => i));\n\n protected readonly classes = computed(() => {\n const parts = ['wr-rating'];\n const size = this.size();\n if (size !== 'md') parts.push(`wr-rating--${size}`);\n if (this.readonly()) parts.push('wr-rating--readonly');\n if (this.effectiveDisabled()) parts.push('wr-rating--disabled');\n return parts.join(' ');\n });\n\n /** Fill ratio for slot `i` in `[0, 1]` — drives the CSS clip width. */\n protected fillFor(i: number): number {\n return clamp(this.displayValue() - i, 0, 1);\n }\n\n // ControlValueAccessor\n\n private onChange: (value: number | null) => void = noop;\n private onTouched: () => void = noop;\n\n writeValue(value: number | null): void {\n this.value.set(value === null || value === undefined ? null : clamp(Number(value), 0, this.count()));\n }\n\n registerOnChange(fn: (value: number | null) => void): void {\n this.onChange = fn;\n }\n\n registerOnTouched(fn: () => void): void {\n this.onTouched = fn;\n }\n\n setDisabledState(isDisabled: boolean): void {\n this.disabledFromCva.set(coerceBooleanProperty(isDisabled));\n }\n\n // Template handlers\n\n protected onSlotMove(event: MouseEvent, index: number): void {\n if (!this.interactive()) return;\n this.hoverValue.set(this.computeValue(event, index));\n }\n\n protected onLeave(): void {\n this.hoverValue.set(null);\n }\n\n protected onSlotClick(event: MouseEvent, index: number): void {\n if (!this.interactive()) return;\n const next = this.computeValue(event, index);\n // Click the current value → clear it.\n const final = next === this.value() ? null : next;\n this.commit(final);\n }\n\n protected onKeydown(event: KeyboardEvent): void {\n if (!this.interactive()) return;\n const max = this.count();\n const step = this.step();\n const current = this.value() ?? 0;\n let next: number | null;\n switch (event.key) {\n case 'ArrowRight':\n case 'ArrowUp':\n next = clamp(current + step, 0, max);\n break;\n case 'ArrowLeft':\n case 'ArrowDown':\n next = clamp(current - step, 0, max);\n break;\n case 'Home':\n next = 0;\n break;\n case 'End':\n next = max;\n break;\n case 'Delete':\n case 'Backspace':\n next = null;\n break;\n default:\n return;\n }\n event.preventDefault();\n this.commit(next);\n }\n\n // Internals\n\n /** Convert a mouse position over slot `index` to a snapped value. */\n private computeValue(event: MouseEvent, index: number): number {\n const target = event.currentTarget as HTMLElement;\n const rect = target.getBoundingClientRect();\n const ratio = clamp((event.clientX - rect.left) / rect.width, 0, 1);\n const raw = index + ratio;\n const step = this.step();\n const snapped = Math.ceil(raw / step) * step;\n return clamp(snapped, step, this.count());\n }\n\n private commit(value: number | null): void {\n this.value.set(value);\n this.hoverValue.set(null);\n this.onChange(value);\n this.onTouched();\n }\n}\n","\n @for (slot of slots(); track $index) {\n \n \n \n \n \n \n \n \n }\n\n","/**\n * Generated bundle index. 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