{"version":3,"file":"fixed-size-virtual-scroll.d.ts","sources":["fixed-size-virtual-scroll.d.ts"],"names":[],"mappings":"AAAA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;;AACA","sourcesContent":["/**\n * @license\n * Copyright Google LLC All Rights Reserved.\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://angular.io/license\n */\nimport { NumberInput } from '@angular/cdk/coercion';\nimport { OnChanges } from '@angular/core';\nimport { Observable } from 'rxjs';\nimport { VirtualScrollStrategy } from './virtual-scroll-strategy';\nimport { CdkVirtualScrollViewport } from './virtual-scroll-viewport';\n/** Virtual scrolling strategy for lists with items of known fixed size. */\nexport declare class FixedSizeVirtualScrollStrategy implements VirtualScrollStrategy {\n    private readonly _scrolledIndexChange;\n    /** @docs-private Implemented as part of VirtualScrollStrategy. */\n    scrolledIndexChange: Observable<number>;\n    /** The attached viewport. */\n    private _viewport;\n    /** The size of the items in the virtually scrolling list. */\n    private _itemSize;\n    /** The minimum amount of buffer rendered beyond the viewport (in pixels). */\n    private _minBufferPx;\n    /** The number of buffer items to render beyond the edge of the viewport (in pixels). */\n    private _maxBufferPx;\n    /**\n     * @param itemSize The size of the items in the virtually scrolling list.\n     * @param minBufferPx The minimum amount of buffer (in pixels) before needing to render more\n     * @param maxBufferPx The amount of buffer (in pixels) to render when rendering more.\n     */\n    constructor(itemSize: number, minBufferPx: number, maxBufferPx: number);\n    /**\n     * Attaches this scroll strategy to a viewport.\n     * @param viewport The viewport to attach this strategy to.\n     */\n    attach(viewport: CdkVirtualScrollViewport): void;\n    /** Detaches this scroll strategy from the currently attached viewport. */\n    detach(): void;\n    /**\n     * Update the item size and buffer size.\n     * @param itemSize The size of the items in the virtually scrolling list.\n     * @param minBufferPx The minimum amount of buffer (in pixels) before needing to render more\n     * @param maxBufferPx The amount of buffer (in pixels) to render when rendering more.\n     */\n    updateItemAndBufferSize(itemSize: number, minBufferPx: number, maxBufferPx: number): void;\n    /** @docs-private Implemented as part of VirtualScrollStrategy. */\n    onContentScrolled(): void;\n    /** @docs-private Implemented as part of VirtualScrollStrategy. */\n    onDataLengthChanged(): void;\n    /** @docs-private Implemented as part of VirtualScrollStrategy. */\n    onContentRendered(): void;\n    /** @docs-private Implemented as part of VirtualScrollStrategy. */\n    onRenderedOffsetChanged(): void;\n    /**\n     * Scroll to the offset for the given index.\n     * @param index The index of the element to scroll to.\n     * @param behavior The ScrollBehavior to use when scrolling.\n     */\n    scrollToIndex(index: number, behavior: ScrollBehavior): void;\n    /** Update the viewport's total content size. */\n    private _updateTotalContentSize;\n    /** Update the viewport's rendered range. */\n    private _updateRenderedRange;\n}\n/**\n * Provider factory for `FixedSizeVirtualScrollStrategy` that simply extracts the already created\n * `FixedSizeVirtualScrollStrategy` from the given directive.\n * @param fixedSizeDir The instance of `CdkFixedSizeVirtualScroll` to extract the\n *     `FixedSizeVirtualScrollStrategy` from.\n */\nexport declare function _fixedSizeVirtualScrollStrategyFactory(fixedSizeDir: CdkFixedSizeVirtualScroll): FixedSizeVirtualScrollStrategy;\n/** A virtual scroll strategy that supports fixed-size items. */\nexport declare class CdkFixedSizeVirtualScroll implements OnChanges {\n    /** The size of the items in the list (in pixels). */\n    get itemSize(): number;\n    set itemSize(value: number);\n    _itemSize: number;\n    /**\n     * The minimum amount of buffer rendered beyond the viewport (in pixels).\n     * If the amount of buffer dips below this number, more items will be rendered. Defaults to 100px.\n     */\n    get minBufferPx(): number;\n    set minBufferPx(value: number);\n    _minBufferPx: number;\n    /**\n     * The number of pixels worth of buffer to render for when rendering new items. Defaults to 200px.\n     */\n    get maxBufferPx(): number;\n    set maxBufferPx(value: number);\n    _maxBufferPx: number;\n    /** The scroll strategy used by this directive. */\n    _scrollStrategy: FixedSizeVirtualScrollStrategy;\n    ngOnChanges(): void;\n    static ngAcceptInputType_itemSize: NumberInput;\n    static ngAcceptInputType_minBufferPx: NumberInput;\n    static ngAcceptInputType_maxBufferPx: NumberInput;\n}\n"]}