62 lines
1.9 KiB
Plaintext
62 lines
1.9 KiB
Plaintext
/*
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* Copyright 2024 Adobe. All rights reserved.
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* This file is licensed to you under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License. You may obtain a copy
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* of the License at http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under
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* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
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* OF ANY KIND, either express or implied. See the License for the specific language
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* governing permissions and limitations under the License.
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*/
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import {getItemElement} from './utils';
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import {Key, LayoutDelegate, Rect, RefObject, Size} from '@react-types/shared';
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export class DOMLayoutDelegate implements LayoutDelegate {
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private ref: RefObject<HTMLElement | null>;
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constructor(ref: RefObject<HTMLElement | null>) {
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this.ref = ref;
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}
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getItemRect(key: Key): Rect | null {
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let container = this.ref.current;
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if (!container) {
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return null;
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}
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let item = key != null ? getItemElement(this.ref, key) : null;
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if (!item) {
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return null;
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}
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let containerRect = container.getBoundingClientRect();
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let itemRect = item.getBoundingClientRect();
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return {
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x: itemRect.left - containerRect.left - container.clientLeft + container.scrollLeft,
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y: itemRect.top - containerRect.top - container.clientTop + container.scrollTop,
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width: itemRect.width,
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height: itemRect.height
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};
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}
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getContentSize(): Size {
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let container = this.ref.current;
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return {
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width: container?.scrollWidth ?? 0,
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height: container?.scrollHeight ?? 0
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};
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}
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getVisibleRect(): Rect {
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let container = this.ref.current;
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return {
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x: container?.scrollLeft ?? 0,
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y: container?.scrollTop ?? 0,
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width: container?.clientWidth ?? 0,
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height: container?.clientHeight ?? 0
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};
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}
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}
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