PageHeader.js
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const Spacer = require('./Spacer.js');
const theme = require('../theme.js');
/**
* @typedef {Object} PageHeaderProps
* @property {string} [message]
* @property {string} title
* @property {string} [topOffset]
*/
/**
* The header of the overlay.
* @param {Document} document
* @param {HTMLElement} root
* @param {PageHeaderProps} props
* @returns {void}
*/
function PageHeader(document, root, props) {
const pageHeaderContainer = document.createElement('div');
pageHeaderContainer.style.background = '#' + theme.dimgrey;
pageHeaderContainer.style.boxShadow = '0 1px 4px rgba(0, 0, 0, 0.3)';
pageHeaderContainer.style.color = '#' + theme.white;
pageHeaderContainer.style.left = '0';
pageHeaderContainer.style.right = '0';
pageHeaderContainer.style.padding = '1rem 1.5rem';
pageHeaderContainer.style.paddingLeft = 'max(1.5rem, env(safe-area-inset-left))';
pageHeaderContainer.style.paddingRight = 'max(1.5rem, env(safe-area-inset-right))';
pageHeaderContainer.style.position = 'fixed';
pageHeaderContainer.style.top = props.topOffset || '0';
const title = document.createElement('h3');
title.innerText = props.title;
title.style.color = '#' + theme.red;
title.style.fontSize = '1.125rem';
title.style.lineHeight = '1.3';
title.style.margin = '0';
pageHeaderContainer.appendChild(title);
if (props.message) {
title.style.margin = '0 0 0.5rem';
const message = document.createElement('span');
message.innerText = props.message;
message.style.color = '#' + theme.white;
message.style.wordBreak = 'break-word';
pageHeaderContainer.appendChild(message);
}
root.appendChild(pageHeaderContainer);
// This has to run after appending elements to root
// because we need to actual mounted height.
Spacer(document, root, {
space: pageHeaderContainer.offsetHeight.toString(10),
});
}
module.exports = PageHeader;