fix: wait for image rendering in nodes

This commit is contained in:
Laura Valentine Tscharner
2023-03-30 20:13:31 +00:00
parent d132d26246
commit 9bb0cef82b
11 changed files with 351 additions and 289 deletions

View File

@@ -4,7 +4,8 @@ import { getConfig } from '../../config';
import { decodeEntities } from '../../mermaidAPI';
import { select } from 'd3';
import { evaluate, sanitizeText } from '../../diagrams/common/common';
export const labelHelper = (parent, node, _classes, isNode) => {
export const labelHelper = async (parent, node, _classes, isNode) => {
let classes;
const useHtmlLabels = node.useHtmlLabels || evaluate(getConfig().flowchart.htmlLabels);
if (!_classes) {
@@ -51,17 +52,47 @@ export const labelHelper = (parent, node, _classes, isNode) => {
// Get the size of the label
let bbox = text.getBBox();
const halfPadding = node.padding / 2;
if (evaluate(getConfig().flowchart.htmlLabels)) {
const div = text.children[0];
const dv = select(text);
// if there are images, need to wait for them to load before getting the bounding box
const images = div.getElementsByTagName('img');
if (images) {
const noImgText = labelText.replace(/<img[^>]*>/g, '').trim() === '';
await Promise.all(
[...images].map(
(img) =>
new Promise((res) =>
img.addEventListener('load', function () {
img.style.display = 'flex';
img.style.flexDirection = 'column';
if (noImgText) {
// default size if no text
const bodyFontSize = getConfig().fontSize
? getConfig().fontSize
: window.getComputedStyle(document.body).fontSize;
const enlargingFactor = 5;
img.style.width = parseInt(bodyFontSize, 10) * enlargingFactor + 'px';
} else {
img.style.width = '100%';
}
res(img);
})
)
)
);
}
bbox = div.getBoundingClientRect();
dv.attr('width', bbox.width);
dv.attr('height', bbox.height);
}
const halfPadding = node.padding / 2;
// Center the label
if (useHtmlLabels) {
label.attr('transform', 'translate(' + -bbox.width / 2 + ', ' + -bbox.height / 2 + ')');