90 lines
2.6 KiB
TypeScript
90 lines
2.6 KiB
TypeScript
/*************************************************************
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*
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* Copyright (c) 2017-2022 The MathJax Consortium
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*
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* Licensed 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.
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* You may obtain a copy of the License at
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*
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* 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
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @fileoverview Implements the CHTMLmrow wrapper for the MmlMrow object
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*
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* @author dpvc@mathjax.org (Davide Cervone)
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*/
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import {CHTMLWrapper, CHTMLConstructor, Constructor} from '../Wrapper.js';
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import {CommonMrowMixin} from '../../common/Wrappers/mrow.js';
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import {CommonInferredMrowMixin} from '../../common/Wrappers/mrow.js';
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import {MmlMrow, MmlInferredMrow} from '../../../core/MmlTree/MmlNodes/mrow.js';
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/*****************************************************************/
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/**
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* The CHTMLmrow wrapper for the MmlMrow object
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*
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* @template N The HTMLElement node class
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* @template T The Text node class
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* @template D The Document class
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*/
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// @ts-ignore
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export class CHTMLmrow<N, T, D> extends
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CommonMrowMixin<CHTMLConstructor<any, any, any>>(CHTMLWrapper) {
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/**
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* The mrow wrapper
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*/
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public static kind = MmlMrow.prototype.kind;
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/**
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* @override
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*/
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public toCHTML(parent: N) {
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const chtml = (this.node.isInferred ? (this.chtml = parent) : this.standardCHTMLnode(parent));
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let hasNegative = false;
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for (const child of this.childNodes) {
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child.toCHTML(chtml);
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if (child.bbox.w < 0) {
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hasNegative = true;
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}
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}
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// FIXME: handle line breaks
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if (hasNegative) {
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const {w} = this.getBBox();
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if (w) {
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this.adaptor.setStyle(chtml, 'width', this.em(Math.max(0, w)));
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if (w < 0) {
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this.adaptor.setStyle(chtml, 'marginRight', this.em(w));
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}
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}
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}
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}
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}
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/*****************************************************************/
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/**
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* The CHTMLinferredMrow wrapper for the MmlInferredMrow object
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*
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* @template N The HTMLElement node class
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* @template T The Text node class
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* @template D The Document class
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*/
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// @ts-ignore
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export class CHTMLinferredMrow<N, T, D> extends
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CommonInferredMrowMixin<Constructor<CHTMLmrow<any, any, any>>>(CHTMLmrow) {
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/**
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* The inferred-mrow wrapper
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*/
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public static kind = MmlInferredMrow.prototype.kind;
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}
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