145 lines
4.8 KiB
TypeScript
145 lines
4.8 KiB
TypeScript
// (c) Copyright Ascensio System SIA 2009-2024
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//
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// This program is a free software product.
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// You can redistribute it and/or modify it under the terms
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// of the GNU Affero General Public License (AGPL) version 3 as published by the Free Software
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// Foundation. In accordance with Section 7(a) of the GNU AGPL its Section 15 shall be amended
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// to the effect that Ascensio System SIA expressly excludes the warranty of non-infringement of
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// any third-party rights.
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//
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// This program is distributed WITHOUT ANY WARRANTY, without even the implied warranty
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// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For details, see
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// the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
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//
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// You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia, EU, LV-1021.
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//
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// The interactive user interfaces in modified source and object code versions of the Program must
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// display Appropriate Legal Notices, as required under Section 5 of the GNU AGPL version 3.
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//
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// Pursuant to Section 7(b) of the License you must retain the original Product logo when
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// distributing the program. Pursuant to Section 7(e) we decline to grant you any rights under
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// trademark law for use of our trademarks.
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//
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// All the Product's GUI elements, including illustrations and icon sets, as well as technical writing
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// content are licensed under the terms of the Creative Commons Attribution-ShareAlike 4.0
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// International. See the License terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
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import React, { useCallback, useRef } from "react";
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import { InfiniteLoader, WindowScroller } from "react-virtualized";
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import { StyledList } from "../InfiniteLoader.styled";
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import { GridComponentProps } from "../InfiniteLoader.types";
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const GridComponent = ({
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hasMoreFiles,
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filesLength,
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itemCount,
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loadMoreItems,
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onScroll,
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countTilesInRow = 1,
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children,
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className,
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scroll,
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}: GridComponentProps) => {
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const loaderRef = useRef<InfiniteLoader | null>(null);
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const isItemLoaded = useCallback(
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({ index }: { index: number }) => {
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return !hasMoreFiles || (index + 1) * countTilesInRow < filesLength;
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},
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[filesLength, hasMoreFiles, countTilesInRow],
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);
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const renderTile = ({
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index,
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style,
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key,
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}: {
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index: number;
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style: React.CSSProperties;
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key: string;
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}) => {
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return (
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<div className="window-item" style={style} key={key}>
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{children[index]}
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</div>
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);
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};
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const getItemSize = ({ index }: { index: number }) => {
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const elem = children[index] as React.ReactElement;
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if (
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React.isValidElement(elem) &&
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typeof elem !== "string" &&
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typeof elem !== "boolean" &&
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typeof elem !== "number"
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) {
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const props = elem?.props as { className?: string };
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const itemClassNames = props?.className;
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const isFile = itemClassNames?.includes("isFile");
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const isFolder = itemClassNames?.includes("isFolder");
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const isRoom = itemClassNames?.includes("isRoom");
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const isFolderHeader = itemClassNames?.includes("folder_header");
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const horizontalGap = 16;
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const verticalGap = 14;
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const headerMargin = 15;
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const folderHeight = 64 + verticalGap;
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const roomHeight = 122 + verticalGap;
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const fileHeight = 220 + horizontalGap;
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const titleHeight = 20 + headerMargin + (isFolderHeader ? 0 : 11);
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if (isRoom) return roomHeight;
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if (isFolder) return folderHeight;
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if (isFile) return fileHeight;
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return titleHeight;
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}
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};
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return (
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<InfiniteLoader
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isRowLoaded={isItemLoaded}
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rowCount={itemCount}
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loadMoreRows={loadMoreItems}
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ref={loaderRef}
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>
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{({ onRowsRendered, registerChild }) => (
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<WindowScroller scrollElement={scroll}>
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{({ height, isScrolling, onChildScroll, scrollTop }) => {
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if (height === undefined && scroll instanceof Element) {
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height = scroll.getBoundingClientRect().height;
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}
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const width =
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document.getElementById("tileContainer")?.getBoundingClientRect()
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.width ?? 0;
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return (
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<StyledList
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autoHeight
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height={height}
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onRowsRendered={onRowsRendered}
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ref={registerChild}
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rowCount={children.length}
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rowHeight={getItemSize}
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rowRenderer={renderTile}
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width={width}
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className={className}
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isScrolling={isScrolling}
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onChildScroll={onChildScroll}
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scrollTop={scrollTop}
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overscanRowCount={3}
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onScroll={onScroll}
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/>
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);
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}}
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</WindowScroller>
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)}
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</InfiniteLoader>
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);
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};
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export default GridComponent;
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