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Fixed #3802 - Improve folder structure for nuxt configurations
This commit is contained in:
mertsincan
parent
851950270b
commit
f5fe822afb
563 changed files with 1703 additions and 1095 deletions
381
components/lib/virtualscroller/VirtualScroller.d.ts
vendored
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381
components/lib/virtualscroller/VirtualScroller.d.ts
vendored
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/**
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*
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* VirtualScroller is a performant approach to handle huge data efficiently.
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*
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* [Live Demo](https://www.primevue.org/virtualscroller/)
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*
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* @module virtualscroller
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*
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*/
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import { VNode } from 'vue';
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import { ClassComponent, GlobalComponentConstructor } from '../ts-helpers';
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/**
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* Custom scroll index change event.
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* @see {@link VirtualScrollerEmits['scroll-index-change']}
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*/
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export interface VirtualScrollerScrollIndexChangeEvent {
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/**
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* First index of the new data range to be loaded.
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*/
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first: number;
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/**
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* Last index of the new data range to be loaded.
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*/
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last: number;
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}
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/**
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* Custom lazy event.
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* @see {@link VirtualScrollerEmits['scroll-index-change']}
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* @extends VirtualScrollerScrollIndexChangeEvent
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*/
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export interface VirtualScrollerLazyEvent extends VirtualScrollerScrollIndexChangeEvent {}
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/**
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* Custom virtualscroller viewport metadata.
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* @see {@link VirtualScrollerEmits['scroll-index-change']}
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* @extends VirtualScrollerScrollIndexChangeEvent
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*/
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export interface VirtualScrollerViewport extends VirtualScrollerScrollIndexChangeEvent {}
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/**
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* Virtual scroller rendered range.
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*/
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export interface VirtualScrollerRangeMethod {
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/**
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* Whether the item is first.
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*/
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first: number;
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/**
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* Whether the item is last.
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*/
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last: number;
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/**
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* Viewport info.
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* @see VirtualScrollerViewport
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*/
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viewport: VirtualScrollerViewport;
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}
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/**
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* Custom item options.
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*/
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export interface VirtualScrollerItemOptions {
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/**
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* Item index
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*/
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index: number;
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/**
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* Items count
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*/
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count: number;
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/**
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* Whether the item is first.
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*/
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first: boolean;
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/**
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* Whether the item is last.
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*/
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last: boolean;
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/**
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* Whether the item is even.
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*/
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even: boolean;
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/**
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* Whether the item is odd.
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*/
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odd: boolean;
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/**
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* Optional
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*/
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[key: string]: any;
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}
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/**
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* Custom virtualscroller loader options
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* @see VirtualScrollerItemOptions
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* @extends VirtualScrollerItemOptions
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*/
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export interface VirtualScrollerLoaderOptions extends VirtualScrollerItemOptions {}
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/**
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* Defines valid properties in VirtualScroller component.
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*/
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export interface VirtualScrollerProps {
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/**
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* Unique identifier of the element.
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*/
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id?: string | undefined;
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/**
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* Inline style of the component.
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*/
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style?: any;
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/**
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* Style class of the component.
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*/
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class?: any;
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/**
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* An array of objects to display.
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*/
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items?: any[] | any[][] | undefined | null;
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/**
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* The height/width of item according to orientation.
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*/
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itemSize?: number | number[] | undefined;
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/**
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* Height of the scroll viewport.
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*/
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scrollHeight?: string | undefined;
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/**
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* Width of the scroll viewport.
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*/
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scrollWidth?: string | undefined;
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/**
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* The orientation of scrollbar.
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* @defaultValue vertical
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*/
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orientation?: 'vertical' | 'horizontal' | 'both' | undefined;
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/**
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* Determines how many additional elements to add to the DOM outside of the view.
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* According to the scrolls made up and down, extra items are added in a certain algorithm in the form of multiples of this number.
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* @defaultValue half the number of items shown in the view.
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*/
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numToleratedItems?: number | undefined;
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/**
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* Delay in scroll before new data is loaded.
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* @defaultValue 0
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*/
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delay?: number | undefined;
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/**
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* Delay after window's resize finishes.
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* @defaultValue 10
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*/
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resizeDelay?: number | undefined;
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/**
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* Defines if data is loaded and interacted with in lazy manner.
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* @defaultValue false
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*/
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lazy?: boolean | undefined;
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/**
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* If disabled, the VirtualScroller feature is eliminated and the content is displayed directly.
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* @defaultValue false
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*/
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disabled?: boolean | undefined;
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/**
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* Used to implement a custom loader instead of using the loader feature in the VirtualScroller.
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* @defaultValue false
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*/
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loaderDisabled?: boolean | undefined;
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/**
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* Whether to show loader.
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*/
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showLoader?: boolean | undefined;
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/**
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* Used to implement a custom spacer instead of using the spacer feature in the VirtualScroller.
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* @defaultValue true
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*/
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showSpacer?: boolean | undefined;
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/**
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* Whether to load items.
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* @defaultValue false
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*/
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loading?: boolean | undefined;
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/**
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* Callback to invoke in lazy mode to load new data.
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* @param {VirtualScrollerLazyEvent} event - Custom lazy event.
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*/
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onLazyLoad?(event: VirtualScrollerLazyEvent): void;
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/**
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* Index of the element in tabbing order.
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* @defaultValue 0
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*/
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tabindex?: number | string | undefined;
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/**
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* When enabled, positions the content as inline.
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* @defaultValue false
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*/
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inline?: boolean | undefined;
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/**
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* Used to specify how many items to load in each load method in lazy mode.
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* @defaultValue 0
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*/
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step?: number | undefined;
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/**
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* Used to append each loaded item to top without removing any items from the DOM. Using very large data may cause the browser to crash.
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* @defaultValue false
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*/
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appendOnly?: boolean | undefined;
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/**
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* Whether to dynamically change the height or width of scrollable container.
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* @defaultValue false
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*/
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autoSize?: boolean | undefined;
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}
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/**
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* Defines valid slots in VirtualScroller component.
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*/
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export interface VirtualScrollerSlots {
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/**
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* Custom content template.
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* @param {Object} scope - content slot's params.
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*/
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content(scope: {
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/**
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* An array of objects to display for virtualscroller
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*/
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items: any;
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/**
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* Style class of the content
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*/
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styleClass: string;
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/**
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* Referance of the content
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* @param {HTMLElement} el - Element of 'ref' property
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*/
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contentRef(el: any): void;
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/**
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* Options of the items
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* @param {number} index - Rendered index
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* @return {@link VirtualScroller.VirtualScrollerItemOptions}
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*/
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getItemOptions(index: number): VirtualScrollerItemOptions;
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/**
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* Whether the data is loaded.
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*/
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loading: boolean;
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/**
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* Loader options of the items while the data is loading.
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* @param {number} index - Rendered index
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* @param {*} [ext] - Extra options
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*/
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getLoaderOptions(index: number, ext?: any): VirtualScrollerLoaderOptions;
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/**
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* The height/width of item according to orientation.
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*/
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itemSize: number | number[] | undefined;
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/**
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* The number of the rendered rows.
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*/
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rows: number | undefined;
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/**
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* The number of the rendered columns.
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*/
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columns: number | undefined;
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/**
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* The style of spacer element.
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*/
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spacerStyle: any;
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/**
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* The style of content element.
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*/
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contentStyle: any;
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/**
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* Whether the orientation is vertical.
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*/
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vertical: boolean;
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/**
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* Whether the orientation is horizontal.
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*/
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horizontal: boolean;
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/**
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* Whether the orientation is both.
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*/
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both: boolean;
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}): VNode[];
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/**
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* Custom item template.
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* @param {Object} scope - item slot's params.
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*/
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item(scope: {
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/**
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* Item data.
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*/
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item: any;
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/**
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* Item options.
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*/
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options: VirtualScrollerItemOptions;
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}): VNode[];
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/**
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* Custom loader template.
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* @param {Object} scope - header slot's params.
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*/
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loader(scope: {
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/**
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* Loader options.
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*/
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options: VirtualScrollerLoaderOptions;
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}): VNode[];
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}
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/**
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* Defines valid emits in VirtualScroller component.
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*/
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export interface VirtualScrollerEmits {
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/**
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* Emitted when the numToleratedItems changes.
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* @param {number} value - New number tolerated items
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*/
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'update:numToleratedItems'(value: number): void;
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/**
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* Callback to invoke when scroll position changes.
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* @param {Event} event - Browser event.
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*/
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scroll(event: Event): void;
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/**
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* Callback to invoke when scroll position and item's range in view changes.
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* @param {VirtualScrollerScrollIndexChangeEvent} event - Custom tab open event.
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*/
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'scroll-index-change'(event: VirtualScrollerScrollIndexChangeEvent): void;
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/**
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* Callback to invoke in lazy mode to load new data.
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* @param {VirtualScrollerLazyEvent} event - Custom lazy event.
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*/
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'lazy-load'(event: VirtualScrollerLazyEvent): void;
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}
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/**
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* **PrimeVue - VirtualScroller**
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*
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* _VirtualScroller is a performant approach to handle huge data efficiently._
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*
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* [Live Demo](https://www.primevue.org/virtualscroller/)
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* --- ---
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* 
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*
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* @group Component
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*/
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declare class VirtualScroller extends ClassComponent<VirtualScrollerProps, VirtualScrollerSlots, VirtualScrollerEmits> {
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/**
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* Scroll to move to a specific position.
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* @param {ScrollToOptions} [options] - scoll options.
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*/
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scrollTo(options?: ScrollToOptions): void;
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/**
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* Scroll to move to a specific item.
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* @param {number} index - Index of item according to orientation mode.
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* @param {ScrollBehavior} [behavior] - Behavior of scroll.
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*/
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scrollToIndex(index: number, behavior?: ScrollBehavior): void;
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/**
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* It is used to move the specified index into the view. It is a method that will usually be needed when keyboard support is added to the virtualScroller component.
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* @param {number} index - Index of item according to orientation mode.
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* @param {'to-start' | 'to-end' } to - Defines the location of the item in view,
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* @param {ScrollBehavior} [behavior] Behavior of scroll
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*/
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scrollInView(index: number, to: 'to-start' | 'to-end', behavior?: ScrollBehavior): void;
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/**
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* Returns the range of items added to the DOM.
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*/
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getRenderedRange(): VirtualScrollerRangeMethod;
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}
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declare module '@vue/runtime-core' {
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interface GlobalComponents {
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VirtualScroller: GlobalComponentConstructor<VirtualScroller>;
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}
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}
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export default VirtualScroller;
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805
components/lib/virtualscroller/VirtualScroller.vue
Normal file
805
components/lib/virtualscroller/VirtualScroller.vue
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@ -0,0 +1,805 @@
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<template>
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<template v-if="!disabled">
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<div :ref="elementRef" :class="containerClass" :tabindex="tabindex" :style="style" @scroll="onScroll">
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<slot
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name="content"
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:styleClass="contentClass"
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:items="loadedItems"
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:getItemOptions="getOptions"
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:loading="d_loading"
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:getLoaderOptions="getLoaderOptions"
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:itemSize="itemSize"
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:rows="loadedRows"
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:columns="loadedColumns"
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:contentRef="contentRef"
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:spacerStyle="spacerStyle"
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:contentStyle="contentStyle"
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:vertical="isVertical()"
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:horizontal="isHorizontal()"
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:both="isBoth()"
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>
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<div :ref="contentRef" :class="contentClass" :style="contentStyle">
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<template v-for="(item, index) of loadedItems" :key="index">
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<slot name="item" :item="item" :options="getOptions(index)"></slot>
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</template>
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</div>
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</slot>
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<div v-if="showSpacer" class="p-virtualscroller-spacer" :style="spacerStyle"></div>
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<div v-if="!loaderDisabled && showLoader && d_loading" :class="loaderClass">
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<template v-if="$slots && $slots.loader">
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<template v-for="(_, index) of loaderArr" :key="index">
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<slot name="loader" :options="getLoaderOptions(index, isBoth() && { numCols: d_numItemsInViewport.cols })"></slot>
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</template>
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</template>
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<i v-else class="p-virtualscroller-loading-icon pi pi-spinner pi-spin"></i>
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</div>
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</div>
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</template>
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<template v-else>
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<slot></slot>
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<slot name="content" :items="items" :rows="items" :columns="loadedColumns"></slot>
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</template>
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</template>
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<script>
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import { DomHandler } from 'primevue/utils';
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export default {
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name: 'VirtualScroller',
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emits: ['update:numToleratedItems', 'scroll', 'scroll-index-change', 'lazy-load'],
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props: {
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id: {
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type: String,
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default: null
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},
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style: null,
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class: null,
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items: {
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type: Array,
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default: null
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},
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itemSize: {
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type: [Number, Array],
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default: 0
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},
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scrollHeight: null,
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scrollWidth: null,
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orientation: {
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type: String,
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default: 'vertical'
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},
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numToleratedItems: {
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type: Number,
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default: null
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},
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delay: {
|
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type: Number,
|
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default: 0
|
||||
},
|
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resizeDelay: {
|
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type: Number,
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default: 10
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},
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lazy: {
|
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type: Boolean,
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default: false
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},
|
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disabled: {
|
||||
type: Boolean,
|
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default: false
|
||||
},
|
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loaderDisabled: {
|
||||
type: Boolean,
|
||||
default: false
|
||||
},
|
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columns: {
|
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type: Array,
|
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default: null
|
||||
},
|
||||
loading: {
|
||||
type: Boolean,
|
||||
default: false
|
||||
},
|
||||
showSpacer: {
|
||||
type: Boolean,
|
||||
default: true
|
||||
},
|
||||
showLoader: {
|
||||
type: Boolean,
|
||||
default: false
|
||||
},
|
||||
tabindex: {
|
||||
type: Number,
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||||
default: 0
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||||
},
|
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inline: {
|
||||
type: Boolean,
|
||||
default: false
|
||||
},
|
||||
step: {
|
||||
type: Number,
|
||||
default: 0
|
||||
},
|
||||
appendOnly: {
|
||||
type: Boolean,
|
||||
default: false
|
||||
},
|
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autoSize: {
|
||||
type: Boolean,
|
||||
default: false
|
||||
}
|
||||
},
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data() {
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return {
|
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first: this.isBoth() ? { rows: 0, cols: 0 } : 0,
|
||||
last: this.isBoth() ? { rows: 0, cols: 0 } : 0,
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page: this.isBoth() ? { rows: 0, cols: 0 } : 0,
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numItemsInViewport: this.isBoth() ? { rows: 0, cols: 0 } : 0,
|
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lastScrollPos: this.isBoth() ? { top: 0, left: 0 } : 0,
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d_numToleratedItems: this.numToleratedItems,
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d_loading: this.loading,
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loaderArr: [],
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||||
spacerStyle: {},
|
||||
contentStyle: {}
|
||||
};
|
||||
},
|
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element: null,
|
||||
content: null,
|
||||
lastScrollPos: null,
|
||||
scrollTimeout: null,
|
||||
resizeTimeout: null,
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||||
defaultWidth: 0,
|
||||
defaultHeight: 0,
|
||||
defaultContentWidth: 0,
|
||||
defaultContentHeight: 0,
|
||||
isRangeChanged: false,
|
||||
lazyLoadState: {},
|
||||
resizeListener: null,
|
||||
initialized: false,
|
||||
watch: {
|
||||
numToleratedItems(newValue) {
|
||||
this.d_numToleratedItems = newValue;
|
||||
},
|
||||
loading(newValue) {
|
||||
this.d_loading = newValue;
|
||||
},
|
||||
items(newValue, oldValue) {
|
||||
if (!oldValue || oldValue.length !== (newValue || []).length) {
|
||||
this.init();
|
||||
this.calculateAutoSize();
|
||||
}
|
||||
},
|
||||
itemSize() {
|
||||
this.init();
|
||||
this.calculateAutoSize();
|
||||
},
|
||||
orientation() {
|
||||
this.lastScrollPos = this.isBoth() ? { top: 0, left: 0 } : 0;
|
||||
},
|
||||
scrollHeight() {
|
||||
this.init();
|
||||
this.calculateAutoSize();
|
||||
},
|
||||
scrollWidth() {
|
||||
this.init();
|
||||
this.calculateAutoSize();
|
||||
}
|
||||
},
|
||||
mounted() {
|
||||
this.viewInit();
|
||||
|
||||
this.lastScrollPos = this.isBoth() ? { top: 0, left: 0 } : 0;
|
||||
this.lazyLoadState = this.lazyLoadState || {};
|
||||
},
|
||||
updated() {
|
||||
!this.initialized && this.viewInit();
|
||||
},
|
||||
unmounted() {
|
||||
this.unbindResizeListener();
|
||||
|
||||
this.initialized = false;
|
||||
},
|
||||
methods: {
|
||||
viewInit() {
|
||||
if (DomHandler.isVisible(this.element)) {
|
||||
this.setContentEl(this.content);
|
||||
this.init();
|
||||
this.bindResizeListener();
|
||||
|
||||
this.defaultWidth = DomHandler.getWidth(this.element);
|
||||
this.defaultHeight = DomHandler.getHeight(this.element);
|
||||
this.defaultContentWidth = DomHandler.getWidth(this.content);
|
||||
this.defaultContentHeight = DomHandler.getHeight(this.content);
|
||||
this.initialized = true;
|
||||
}
|
||||
},
|
||||
init() {
|
||||
if (!this.disabled) {
|
||||
this.setSize();
|
||||
this.calculateOptions();
|
||||
this.setSpacerSize();
|
||||
}
|
||||
},
|
||||
isVertical() {
|
||||
return this.orientation === 'vertical';
|
||||
},
|
||||
isHorizontal() {
|
||||
return this.orientation === 'horizontal';
|
||||
},
|
||||
isBoth() {
|
||||
return this.orientation === 'both';
|
||||
},
|
||||
scrollTo(options) {
|
||||
this.lastScrollPos = this.both ? { top: 0, left: 0 } : 0;
|
||||
this.element?.scrollTo(options);
|
||||
},
|
||||
scrollToIndex(index, behavior = 'auto') {
|
||||
const both = this.isBoth();
|
||||
const horizontal = this.isHorizontal();
|
||||
const first = this.first;
|
||||
const { numToleratedItems } = this.calculateNumItems();
|
||||
const contentPos = this.getContentPosition();
|
||||
const itemSize = this.itemSize;
|
||||
const calculateFirst = (_index = 0, _numT) => (_index <= _numT ? 0 : _index);
|
||||
const calculateCoord = (_first, _size, _cpos) => _first * _size + _cpos;
|
||||
const scrollTo = (left = 0, top = 0) => this.scrollTo({ left, top, behavior });
|
||||
let newFirst = both ? { rows: 0, cols: 0 } : 0;
|
||||
let isRangeChanged = false;
|
||||
|
||||
if (both) {
|
||||
newFirst = { rows: calculateFirst(index[0], numToleratedItems[0]), cols: calculateFirst(index[1], numToleratedItems[1]) };
|
||||
scrollTo(calculateCoord(newFirst.cols, itemSize[1], contentPos.left), calculateCoord(newFirst.rows, itemSize[0], contentPos.top));
|
||||
isRangeChanged = newFirst.rows !== first.rows || newFirst.cols !== first.cols;
|
||||
} else {
|
||||
newFirst = calculateFirst(index, numToleratedItems);
|
||||
horizontal ? scrollTo(calculateCoord(newFirst, itemSize, contentPos.left), 0) : scrollTo(0, calculateCoord(newFirst, itemSize, contentPos.top));
|
||||
isRangeChanged = newFirst !== first;
|
||||
}
|
||||
|
||||
this.isRangeChanged = isRangeChanged;
|
||||
this.first = newFirst;
|
||||
},
|
||||
scrollInView(index, to, behavior = 'auto') {
|
||||
if (to) {
|
||||
const both = this.isBoth();
|
||||
const horizontal = this.isHorizontal();
|
||||
const { first, viewport } = this.getRenderedRange();
|
||||
const scrollTo = (left = 0, top = 0) => this.scrollTo({ left, top, behavior });
|
||||
const isToStart = to === 'to-start';
|
||||
const isToEnd = to === 'to-end';
|
||||
|
||||
if (isToStart) {
|
||||
if (both) {
|
||||
if (viewport.first.rows - first.rows > index[0]) {
|
||||
scrollTo(viewport.first.cols * this.itemSize[1], (viewport.first.rows - 1) * this.itemSize[0]);
|
||||
} else if (viewport.first.cols - first.cols > index[1]) {
|
||||
scrollTo((viewport.first.cols - 1) * this.itemSize[1], viewport.first.rows * this.itemSize[0]);
|
||||
}
|
||||
} else {
|
||||
if (viewport.first - first > index) {
|
||||
const pos = (viewport.first - 1) * this.itemSize;
|
||||
|
||||
horizontal ? scrollTo(pos, 0) : scrollTo(0, pos);
|
||||
}
|
||||
}
|
||||
} else if (isToEnd) {
|
||||
if (both) {
|
||||
if (viewport.last.rows - first.rows <= index[0] + 1) {
|
||||
scrollTo(viewport.first.cols * this.itemSize[1], (viewport.first.rows + 1) * this.itemSize[0]);
|
||||
} else if (viewport.last.cols - first.cols <= index[1] + 1) {
|
||||
scrollTo((viewport.first.cols + 1) * this.itemSize[1], viewport.first.rows * this.itemSize[0]);
|
||||
}
|
||||
} else {
|
||||
if (viewport.last - first <= index + 1) {
|
||||
const pos = (viewport.first + 1) * this.itemSize;
|
||||
|
||||
horizontal ? scrollTo(pos, 0) : scrollTo(0, pos);
|
||||
}
|
||||
}
|
||||
}
|
||||
} else {
|
||||
this.scrollToIndex(index, behavior);
|
||||
}
|
||||
},
|
||||
getRenderedRange() {
|
||||
const calculateFirstInViewport = (_pos, _size) => Math.floor(_pos / (_size || _pos));
|
||||
|
||||
let firstInViewport = this.first;
|
||||
let lastInViewport = 0;
|
||||
|
||||
if (this.element) {
|
||||
const both = this.isBoth();
|
||||
const horizontal = this.isHorizontal();
|
||||
const { scrollTop, scrollLeft } = this.element.scrollTop;
|
||||
|
||||
if (both) {
|
||||
firstInViewport = { rows: calculateFirstInViewport(scrollTop, this.itemSize[0]), cols: calculateFirstInViewport(scrollLeft, this.itemSize[1]) };
|
||||
lastInViewport = { rows: firstInViewport.rows + this.numItemsInViewport.rows, cols: firstInViewport.cols + this.numItemsInViewport.cols };
|
||||
} else {
|
||||
const scrollPos = horizontal ? scrollLeft : scrollTop;
|
||||
|
||||
firstInViewport = calculateFirstInViewport(scrollPos, this.itemSize);
|
||||
lastInViewport = firstInViewport + this.numItemsInViewport;
|
||||
}
|
||||
}
|
||||
|
||||
return {
|
||||
first: this.first,
|
||||
last: this.last,
|
||||
viewport: {
|
||||
first: firstInViewport,
|
||||
last: lastInViewport
|
||||
}
|
||||
};
|
||||
},
|
||||
calculateNumItems() {
|
||||
const both = this.isBoth();
|
||||
const horizontal = this.isHorizontal();
|
||||
const itemSize = this.itemSize;
|
||||
const contentPos = this.getContentPosition();
|
||||
const contentWidth = this.element ? this.element.offsetWidth - contentPos.left : 0;
|
||||
const contentHeight = this.element ? this.element.offsetHeight - contentPos.top : 0;
|
||||
const calculateNumItemsInViewport = (_contentSize, _itemSize) => Math.ceil(_contentSize / (_itemSize || _contentSize));
|
||||
const calculateNumToleratedItems = (_numItems) => Math.ceil(_numItems / 2);
|
||||
const numItemsInViewport = both
|
||||
? { rows: calculateNumItemsInViewport(contentHeight, itemSize[0]), cols: calculateNumItemsInViewport(contentWidth, itemSize[1]) }
|
||||
: calculateNumItemsInViewport(horizontal ? contentWidth : contentHeight, itemSize);
|
||||
|
||||
const numToleratedItems = this.d_numToleratedItems || (both ? [calculateNumToleratedItems(numItemsInViewport.rows), calculateNumToleratedItems(numItemsInViewport.cols)] : calculateNumToleratedItems(numItemsInViewport));
|
||||
|
||||
return { numItemsInViewport, numToleratedItems };
|
||||
},
|
||||
calculateOptions() {
|
||||
const both = this.isBoth();
|
||||
const first = this.first;
|
||||
const { numItemsInViewport, numToleratedItems } = this.calculateNumItems();
|
||||
const calculateLast = (_first, _num, _numT, _isCols = false) => this.getLast(_first + _num + (_first < _numT ? 2 : 3) * _numT, _isCols);
|
||||
const last = both
|
||||
? { rows: calculateLast(first.rows, numItemsInViewport.rows, numToleratedItems[0]), cols: calculateLast(first.cols, numItemsInViewport.cols, numToleratedItems[1], true) }
|
||||
: calculateLast(first, numItemsInViewport, numToleratedItems);
|
||||
|
||||
this.last = last;
|
||||
this.numItemsInViewport = numItemsInViewport;
|
||||
this.d_numToleratedItems = numToleratedItems;
|
||||
this.$emit('update:numToleratedItems', this.d_numToleratedItems);
|
||||
|
||||
if (this.showLoader) {
|
||||
this.loaderArr = both ? Array.from({ length: numItemsInViewport.rows }).map(() => Array.from({ length: numItemsInViewport.cols })) : Array.from({ length: numItemsInViewport });
|
||||
}
|
||||
|
||||
if (this.lazy) {
|
||||
Promise.resolve().then(() => {
|
||||
this.lazyLoadState = {
|
||||
first: this.step ? (both ? { rows: 0, cols: first.cols } : 0) : first,
|
||||
last: Math.min(this.step ? this.step : last, this.items.length)
|
||||
};
|
||||
|
||||
this.$emit('lazy-load', this.lazyLoadState);
|
||||
});
|
||||
}
|
||||
},
|
||||
calculateAutoSize() {
|
||||
if (this.autoSize && !this.d_loading) {
|
||||
Promise.resolve().then(() => {
|
||||
if (this.content) {
|
||||
const both = this.isBoth();
|
||||
const horizontal = this.isHorizontal();
|
||||
const vertical = this.isVertical();
|
||||
|
||||
this.content.style.minHeight = this.content.style.minWidth = 'auto';
|
||||
this.content.style.position = 'relative';
|
||||
this.element.style.contain = 'none';
|
||||
|
||||
const [contentWidth, contentHeight] = [DomHandler.getWidth(this.content), DomHandler.getHeight(this.content)];
|
||||
|
||||
contentWidth !== this.defaultContentWidth && (this.element.style.width = '');
|
||||
contentHeight !== this.defaultContentHeight && (this.element.style.height = '');
|
||||
|
||||
const [width, height] = [DomHandler.getWidth(this.element), DomHandler.getHeight(this.element)];
|
||||
|
||||
(both || horizontal) && (this.element.style.width = width < this.defaultWidth ? width + 'px' : this.scrollWidth || this.defaultWidth + 'px');
|
||||
(both || vertical) && (this.element.style.height = height < this.defaultHeight ? height + 'px' : this.scrollHeight || this.defaultHeight + 'px');
|
||||
|
||||
this.content.style.minHeight = this.content.style.minWidth = '';
|
||||
this.content.style.position = '';
|
||||
this.element.style.contain = '';
|
||||
}
|
||||
});
|
||||
}
|
||||
},
|
||||
getLast(last = 0, isCols) {
|
||||
return this.items ? Math.min(isCols ? (this.columns || this.items[0]).length : this.items.length, last) : 0;
|
||||
},
|
||||
getContentPosition() {
|
||||
if (this.content) {
|
||||
const style = getComputedStyle(this.content);
|
||||
const left = parseFloat(style.paddingLeft) + Math.max(parseFloat(style.left) || 0, 0);
|
||||
const right = parseFloat(style.paddingRight) + Math.max(parseFloat(style.right) || 0, 0);
|
||||
const top = parseFloat(style.paddingTop) + Math.max(parseFloat(style.top) || 0, 0);
|
||||
const bottom = parseFloat(style.paddingBottom) + Math.max(parseFloat(style.bottom) || 0, 0);
|
||||
|
||||
return { left, right, top, bottom, x: left + right, y: top + bottom };
|
||||
}
|
||||
|
||||
return { left: 0, right: 0, top: 0, bottom: 0, x: 0, y: 0 };
|
||||
},
|
||||
setSize() {
|
||||
if (this.element) {
|
||||
const both = this.isBoth();
|
||||
const horizontal = this.isHorizontal();
|
||||
const parentElement = this.element.parentElement;
|
||||
const width = this.scrollWidth || `${this.element.offsetWidth || parentElement.offsetWidth}px`;
|
||||
const height = this.scrollHeight || `${this.element.offsetHeight || parentElement.offsetHeight}px`;
|
||||
const setProp = (_name, _value) => (this.element.style[_name] = _value);
|
||||
|
||||
if (both || horizontal) {
|
||||
setProp('height', height);
|
||||
setProp('width', width);
|
||||
} else {
|
||||
setProp('height', height);
|
||||
}
|
||||
}
|
||||
},
|
||||
setSpacerSize() {
|
||||
const items = this.items;
|
||||
|
||||
if (items) {
|
||||
const both = this.isBoth();
|
||||
const horizontal = this.isHorizontal();
|
||||
const contentPos = this.getContentPosition();
|
||||
const setProp = (_name, _value, _size, _cpos = 0) => (this.spacerStyle = { ...this.spacerStyle, ...{ [`${_name}`]: (_value || []).length * _size + _cpos + 'px' } });
|
||||
|
||||
if (both) {
|
||||
setProp('height', items, this.itemSize[0], contentPos.y);
|
||||
setProp('width', this.columns || items[1], this.itemSize[1], contentPos.x);
|
||||
} else {
|
||||
horizontal ? setProp('width', this.columns || items, this.itemSize, contentPos.x) : setProp('height', items, this.itemSize, contentPos.y);
|
||||
}
|
||||
}
|
||||
},
|
||||
setContentPosition(pos) {
|
||||
if (this.content && !this.appendOnly) {
|
||||
const both = this.isBoth();
|
||||
const horizontal = this.isHorizontal();
|
||||
const first = pos ? pos.first : this.first;
|
||||
const calculateTranslateVal = (_first, _size) => _first * _size;
|
||||
const setTransform = (_x = 0, _y = 0) => (this.contentStyle = { ...this.contentStyle, ...{ transform: `translate3d(${_x}px, ${_y}px, 0)` } });
|
||||
|
||||
if (both) {
|
||||
setTransform(calculateTranslateVal(first.cols, this.itemSize[1]), calculateTranslateVal(first.rows, this.itemSize[0]));
|
||||
} else {
|
||||
const translateVal = calculateTranslateVal(first, this.itemSize);
|
||||
|
||||
horizontal ? setTransform(translateVal, 0) : setTransform(0, translateVal);
|
||||
}
|
||||
}
|
||||
},
|
||||
onScrollPositionChange(event) {
|
||||
const target = event.target;
|
||||
const both = this.isBoth();
|
||||
const horizontal = this.isHorizontal();
|
||||
const contentPos = this.getContentPosition();
|
||||
const calculateScrollPos = (_pos, _cpos) => (_pos ? (_pos > _cpos ? _pos - _cpos : _pos) : 0);
|
||||
const calculateCurrentIndex = (_pos, _size) => Math.floor(_pos / (_size || _pos));
|
||||
|
||||
const calculateTriggerIndex = (_currentIndex, _first, _last, _num, _numT, _isScrollDownOrRight) => {
|
||||
return _currentIndex <= _numT ? _numT : _isScrollDownOrRight ? _last - _num - _numT : _first + _numT - 1;
|
||||
};
|
||||
|
||||
const calculateFirst = (_currentIndex, _triggerIndex, _first, _last, _num, _numT, _isScrollDownOrRight) => {
|
||||
if (_currentIndex <= _numT) return 0;
|
||||
else return Math.max(0, _isScrollDownOrRight ? (_currentIndex < _triggerIndex ? _first : _currentIndex - _numT) : _currentIndex > _triggerIndex ? _first : _currentIndex - 2 * _numT);
|
||||
};
|
||||
|
||||
const calculateLast = (_currentIndex, _first, _last, _num, _numT, _isCols) => {
|
||||
let lastValue = _first + _num + 2 * _numT;
|
||||
|
||||
if (_currentIndex >= _numT) {
|
||||
lastValue += _numT + 1;
|
||||
}
|
||||
|
||||
return this.getLast(lastValue, _isCols);
|
||||
};
|
||||
|
||||
const scrollTop = calculateScrollPos(target.scrollTop, contentPos.top);
|
||||
const scrollLeft = calculateScrollPos(target.scrollLeft, contentPos.left);
|
||||
|
||||
let newFirst = both ? { rows: 0, cols: 0 } : 0;
|
||||
let newLast = this.last;
|
||||
let isRangeChanged = false;
|
||||
let newScrollPos = this.lastScrollPos;
|
||||
|
||||
if (both) {
|
||||
const isScrollDown = this.lastScrollPos.top <= scrollTop;
|
||||
const isScrollRight = this.lastScrollPos.left <= scrollLeft;
|
||||
|
||||
if (!this.appendOnly || (this.appendOnly && (isScrollDown || isScrollRight))) {
|
||||
const currentIndex = { rows: calculateCurrentIndex(scrollTop, this.itemSize[0]), cols: calculateCurrentIndex(scrollLeft, this.itemSize[1]) };
|
||||
const triggerIndex = {
|
||||
rows: calculateTriggerIndex(currentIndex.rows, this.first.rows, this.last.rows, this.numItemsInViewport.rows, this.d_numToleratedItems[0], isScrollDown),
|
||||
cols: calculateTriggerIndex(currentIndex.cols, this.first.cols, this.last.cols, this.numItemsInViewport.cols, this.d_numToleratedItems[1], isScrollRight)
|
||||
};
|
||||
|
||||
newFirst = {
|
||||
rows: calculateFirst(currentIndex.rows, triggerIndex.rows, this.first.rows, this.last.rows, this.numItemsInViewport.rows, this.d_numToleratedItems[0], isScrollDown),
|
||||
cols: calculateFirst(currentIndex.cols, triggerIndex.cols, this.first.cols, this.last.cols, this.numItemsInViewport.cols, this.d_numToleratedItems[1], isScrollRight)
|
||||
};
|
||||
newLast = {
|
||||
rows: calculateLast(currentIndex.rows, newFirst.rows, this.last.rows, this.numItemsInViewport.rows, this.d_numToleratedItems[0]),
|
||||
cols: calculateLast(currentIndex.cols, newFirst.cols, this.last.cols, this.numItemsInViewport.cols, this.d_numToleratedItems[1], true)
|
||||
};
|
||||
|
||||
isRangeChanged = newFirst.rows !== this.first.rows || newLast.rows !== this.last.rows || newFirst.cols !== this.first.cols || newLast.cols !== this.last.cols || this.isRangeChanged;
|
||||
newScrollPos = { top: scrollTop, left: scrollLeft };
|
||||
}
|
||||
} else {
|
||||
const scrollPos = horizontal ? scrollLeft : scrollTop;
|
||||
const isScrollDownOrRight = this.lastScrollPos <= scrollPos;
|
||||
|
||||
if (!this.appendOnly || (this.appendOnly && isScrollDownOrRight)) {
|
||||
const currentIndex = calculateCurrentIndex(scrollPos, this.itemSize);
|
||||
const triggerIndex = calculateTriggerIndex(currentIndex, this.first, this.last, this.numItemsInViewport, this.d_numToleratedItems, isScrollDownOrRight);
|
||||
|
||||
newFirst = calculateFirst(currentIndex, triggerIndex, this.first, this.last, this.numItemsInViewport, this.d_numToleratedItems, isScrollDownOrRight);
|
||||
newLast = calculateLast(currentIndex, newFirst, this.last, this.numItemsInViewport, this.d_numToleratedItems);
|
||||
isRangeChanged = newFirst !== this.first || newLast !== this.last || this.isRangeChanged;
|
||||
newScrollPos = scrollPos;
|
||||
}
|
||||
}
|
||||
|
||||
return {
|
||||
first: newFirst,
|
||||
last: newLast,
|
||||
isRangeChanged,
|
||||
scrollPos: newScrollPos
|
||||
};
|
||||
},
|
||||
onScrollChange(event) {
|
||||
const { first, last, isRangeChanged, scrollPos } = this.onScrollPositionChange(event);
|
||||
|
||||
if (isRangeChanged) {
|
||||
const newState = { first, last };
|
||||
|
||||
this.setContentPosition(newState);
|
||||
|
||||
this.first = first;
|
||||
this.last = last;
|
||||
this.lastScrollPos = scrollPos;
|
||||
|
||||
this.$emit('scroll-index-change', newState);
|
||||
|
||||
if (this.lazy && this.isPageChanged(first)) {
|
||||
const lazyLoadState = {
|
||||
first: this.step ? Math.min(this.getPageByFirst(first) * this.step, this.items.length - this.step) : first,
|
||||
last: Math.min(this.step ? (this.getPageByFirst(first) + 1) * this.step : last, this.items.length)
|
||||
};
|
||||
const isLazyStateChanged = this.lazyLoadState.first !== lazyLoadState.first || this.lazyLoadState.last !== lazyLoadState.last;
|
||||
|
||||
isLazyStateChanged && this.$emit('lazy-load', lazyLoadState);
|
||||
this.lazyLoadState = lazyLoadState;
|
||||
}
|
||||
}
|
||||
},
|
||||
onScroll(event) {
|
||||
this.$emit('scroll', event);
|
||||
|
||||
if (this.delay && this.isPageChanged()) {
|
||||
if (this.scrollTimeout) {
|
||||
clearTimeout(this.scrollTimeout);
|
||||
}
|
||||
|
||||
if (!this.d_loading && this.showLoader) {
|
||||
const { isRangeChanged } = this.onScrollPositionChange(event);
|
||||
const changed = isRangeChanged || (this.step ? this.isPageChanged() : false);
|
||||
|
||||
changed && (this.d_loading = true);
|
||||
}
|
||||
|
||||
this.scrollTimeout = setTimeout(() => {
|
||||
this.onScrollChange(event);
|
||||
|
||||
if (this.d_loading && this.showLoader && (!this.lazy || this.loading === undefined)) {
|
||||
this.d_loading = false;
|
||||
this.page = this.getPageByFirst();
|
||||
}
|
||||
}, this.delay);
|
||||
} else {
|
||||
this.onScrollChange(event);
|
||||
}
|
||||
},
|
||||
onResize() {
|
||||
if (this.resizeTimeout) {
|
||||
clearTimeout(this.resizeTimeout);
|
||||
}
|
||||
|
||||
this.resizeTimeout = setTimeout(() => {
|
||||
if (DomHandler.isVisible(this.element)) {
|
||||
const both = this.isBoth();
|
||||
const vertical = this.isVertical();
|
||||
const horizontal = this.isHorizontal();
|
||||
const [width, height] = [DomHandler.getWidth(this.element), DomHandler.getHeight(this.element)];
|
||||
const [isDiffWidth, isDiffHeight] = [width !== this.defaultWidth, height !== this.defaultHeight];
|
||||
const reinit = both ? isDiffWidth || isDiffHeight : horizontal ? isDiffWidth : vertical ? isDiffHeight : false;
|
||||
|
||||
if (reinit) {
|
||||
this.d_numToleratedItems = this.numToleratedItems;
|
||||
this.defaultWidth = width;
|
||||
this.defaultHeight = height;
|
||||
this.defaultContentWidth = DomHandler.getWidth(this.content);
|
||||
this.defaultContentHeight = DomHandler.getHeight(this.content);
|
||||
|
||||
this.init();
|
||||
}
|
||||
}
|
||||
}, this.resizeDelay);
|
||||
},
|
||||
bindResizeListener() {
|
||||
if (!this.resizeListener) {
|
||||
this.resizeListener = this.onResize.bind(this);
|
||||
|
||||
window.addEventListener('resize', this.resizeListener);
|
||||
window.addEventListener('orientationchange', this.resizeListener);
|
||||
}
|
||||
},
|
||||
unbindResizeListener() {
|
||||
if (this.resizeListener) {
|
||||
window.removeEventListener('resize', this.resizeListener);
|
||||
window.removeEventListener('orientationchange', this.resizeListener);
|
||||
this.resizeListener = null;
|
||||
}
|
||||
},
|
||||
getOptions(renderedIndex) {
|
||||
const count = (this.items || []).length;
|
||||
const index = this.isBoth() ? this.first.rows + renderedIndex : this.first + renderedIndex;
|
||||
|
||||
return {
|
||||
index,
|
||||
count,
|
||||
first: index === 0,
|
||||
last: index === count - 1,
|
||||
even: index % 2 === 0,
|
||||
odd: index % 2 !== 0
|
||||
};
|
||||
},
|
||||
getLoaderOptions(index, extOptions) {
|
||||
let count = this.loaderArr.length;
|
||||
|
||||
return {
|
||||
index,
|
||||
count,
|
||||
first: index === 0,
|
||||
last: index === count - 1,
|
||||
even: index % 2 === 0,
|
||||
odd: index % 2 !== 0,
|
||||
...extOptions
|
||||
};
|
||||
},
|
||||
getPageByFirst(first) {
|
||||
return Math.floor(((first ?? this.first) + this.d_numToleratedItems * 4) / (this.step || 1));
|
||||
},
|
||||
isPageChanged(first) {
|
||||
return this.step ? this.page !== this.getPageByFirst(first ?? this.first) : true;
|
||||
},
|
||||
setContentEl(el) {
|
||||
this.content = el || this.content || DomHandler.findSingle(this.element, '.p-virtualscroller-content');
|
||||
},
|
||||
elementRef(el) {
|
||||
this.element = el;
|
||||
},
|
||||
contentRef(el) {
|
||||
this.content = el;
|
||||
}
|
||||
},
|
||||
computed: {
|
||||
containerClass() {
|
||||
return [
|
||||
'p-virtualscroller',
|
||||
{
|
||||
'p-virtualscroller-inline': this.inline,
|
||||
'p-virtualscroller-both p-both-scroll': this.isBoth(),
|
||||
'p-virtualscroller-horizontal p-horizontal-scroll': this.isHorizontal()
|
||||
},
|
||||
this.class
|
||||
];
|
||||
},
|
||||
contentClass() {
|
||||
return [
|
||||
'p-virtualscroller-content',
|
||||
{
|
||||
'p-virtualscroller-loading': this.d_loading
|
||||
}
|
||||
];
|
||||
},
|
||||
loaderClass() {
|
||||
return [
|
||||
'p-virtualscroller-loader',
|
||||
{
|
||||
'p-component-overlay': !this.$slots.loader
|
||||
}
|
||||
];
|
||||
},
|
||||
loadedItems() {
|
||||
if (this.items && !this.d_loading) {
|
||||
if (this.isBoth()) return this.items.slice(this.appendOnly ? 0 : this.first.rows, this.last.rows).map((item) => (this.columns ? item : item.slice(this.appendOnly ? 0 : this.first.cols, this.last.cols)));
|
||||
else if (this.isHorizontal() && this.columns) return this.items;
|
||||
else return this.items.slice(this.appendOnly ? 0 : this.first, this.last);
|
||||
}
|
||||
|
||||
return [];
|
||||
},
|
||||
loadedRows() {
|
||||
return this.d_loading ? (this.loaderDisabled ? this.loaderArr : []) : this.loadedItems;
|
||||
},
|
||||
loadedColumns() {
|
||||
if (this.columns) {
|
||||
const both = this.isBoth();
|
||||
const horizontal = this.isHorizontal();
|
||||
|
||||
if (both || horizontal) {
|
||||
return this.d_loading && this.loaderDisabled ? (both ? this.loaderArr[0] : this.loaderArr) : this.columns.slice(both ? this.first.cols : this.first, both ? this.last.cols : this.last);
|
||||
}
|
||||
}
|
||||
|
||||
return this.columns;
|
||||
}
|
||||
}
|
||||
};
|
||||
</script>
|
||||
|
||||
<style>
|
||||
.p-virtualscroller {
|
||||
position: relative;
|
||||
overflow: auto;
|
||||
contain: strict;
|
||||
transform: translateZ(0);
|
||||
will-change: scroll-position;
|
||||
outline: 0 none;
|
||||
}
|
||||
|
||||
.p-virtualscroller-content {
|
||||
position: absolute;
|
||||
top: 0;
|
||||
left: 0;
|
||||
/* contain: content; */
|
||||
min-height: 100%;
|
||||
min-width: 100%;
|
||||
will-change: transform;
|
||||
}
|
||||
|
||||
.p-virtualscroller-spacer {
|
||||
position: absolute;
|
||||
top: 0;
|
||||
left: 0;
|
||||
height: 1px;
|
||||
width: 1px;
|
||||
transform-origin: 0 0;
|
||||
pointer-events: none;
|
||||
}
|
||||
|
||||
.p-virtualscroller .p-virtualscroller-loader {
|
||||
position: sticky;
|
||||
top: 0;
|
||||
left: 0;
|
||||
width: 100%;
|
||||
height: 100%;
|
||||
}
|
||||
|
||||
.p-virtualscroller-loader.p-component-overlay {
|
||||
display: flex;
|
||||
align-items: center;
|
||||
justify-content: center;
|
||||
}
|
||||
|
||||
.p-virtualscroller-loading-icon {
|
||||
font-size: 2rem;
|
||||
}
|
||||
|
||||
.p-virtualscroller-horizontal > .p-virtualscroller-content {
|
||||
display: flex;
|
||||
}
|
||||
|
||||
/* Inline */
|
||||
.p-virtualscroller-inline .p-virtualscroller-content {
|
||||
position: static;
|
||||
}
|
||||
</style>
|
||||
9
components/lib/virtualscroller/package.json
Normal file
9
components/lib/virtualscroller/package.json
Normal file
|
|
@ -0,0 +1,9 @@
|
|||
{
|
||||
"main": "./virtualscroller.cjs.js",
|
||||
"module": "./virtualscroller.esm.js",
|
||||
"unpkg": "./virtualscroller.min.js",
|
||||
"types": "./VirtualScroller.d.ts",
|
||||
"browser": {
|
||||
"./sfc": "./VirtualScroller.vue"
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue