site/node_modules/mathjax-full/ts/output/chtml/Wrappers/mpadded.ts

104 lines
3 KiB
TypeScript
Raw Permalink Normal View History

2024-10-14 06:09:33 +00:00
/*************************************************************
*
* Copyright (c) 2017-2022 The MathJax Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @fileoverview Implements the CHTMLmpadded wrapper for the MmlMpadded object
*
* @author dpvc@mathjax.org (Davide Cervone)
*/
import {CHTMLWrapper, CHTMLConstructor, StringMap} from '../Wrapper.js';
import {CommonMpaddedMixin} from '../../common/Wrappers/mpadded.js';
import {MmlMpadded} from '../../../core/MmlTree/MmlNodes/mpadded.js';
import {StyleList} from '../../../util/StyleList.js';
/*****************************************************************/
/**
* The CHTMLmpadded wrapper for the MmlMpadded object
*
* @template N The HTMLElement node class
* @template T The Text node class
* @template D The Document class
*/
// @ts-ignore
export class CHTMLmpadded<N, T, D> extends
CommonMpaddedMixin<CHTMLConstructor<any, any, any>>(CHTMLWrapper) {
/**
* The mpadded wrapper
*/
public static kind = MmlMpadded.prototype.kind;
/**
* @override
*/
public static styles: StyleList = {
'mjx-mpadded': {
display: 'inline-block'
},
'mjx-rbox': {
display: 'inline-block',
position: 'relative'
}
};
/**
* @override
*/
public toCHTML(parent: N) {
let chtml = this.standardCHTMLnode(parent);
const content: N[] = [];
const style: StringMap = {};
const [ , , W, dh, dd, dw, x, y, dx] = this.getDimens();
//
// If the width changed, set the width explicitly
//
if (dw) {
style.width = this.em(W + dw);
}
//
// If the height or depth changed, use margin to make the change
//
if (dh || dd) {
style.margin = this.em(dh) + ' 0 ' + this.em(dd);
}
//
// If there is a horizontal or vertical shift,
// use relative positioning to move the contents
//
if (x + dx || y) {
style.position = 'relative';
const rbox = this.html('mjx-rbox', {
style: {left: this.em(x + dx), top: this.em(-y), 'max-width': style.width}
});
if (x + dx && this.childNodes[0].getBBox().pwidth) {
this.adaptor.setAttribute(rbox, 'width', 'full');
this.adaptor.setStyle(rbox, 'left', this.em(x));
}
content.push(rbox);
}
//
// Create the HTML with the proper styles and content
//
chtml = this.adaptor.append(chtml, this.html('mjx-block', {style: style}, content)) as N;
for (const child of this.childNodes) {
child.toCHTML(content[0] || chtml);
}
}
}