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fix: avoid inline styles to ensure CSP compliancy #49

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fix: avoid inline styles to ensure CSP compliancy #49

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6bce5fa
fix: avoid inline styles to ensure CSP compliancy
jaulz Oct 25, 2023
c212d4d
fix: add missing rest operator
jaulz Oct 25, 2023
67800b7
style: add missing semicolon
jaulz Oct 25, 2023
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71 changes: 35 additions & 36 deletions src/calculateNodeHeight.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -5,38 +5,38 @@ import type React from 'react';
* calculateNodeHeight(uiTextNode, useCache = false)
*/

const HIDDEN_TEXTAREA_STYLE = `
min-height:0 !important;
max-height:none !important;
height:0 !important;
visibility:hidden !important;
overflow:hidden !important;
position:absolute !important;
z-index:-1000 !important;
top:0 !important;
right:0 !important;
pointer-events: none !important;
`;
const HIDDEN_TEXTAREA_STYLE = {
minHeight: '0 !important',
maxHeight: 'none !important',
height: '0 !important',
visibility: 'hidden !important',
overflow: 'hidden !important',
position: 'absolute !important',
zIndex: '-1000 !important',
top: '0 !important',
right: '0 !important',
pointerEvents: 'none !important',
};

const SIZING_STYLE = [
'letter-spacing',
'line-height',
'padding-top',
'padding-bottom',
'font-family',
'font-weight',
'font-size',
'font-variant',
'text-rendering',
'text-transform',
'letterSpacing',
'lineHeight',
'paddingTop',
'paddingBottom',
'fontFamily',
'fontWeight',
'fontSize',
'fontVariant',
'textRendering',
'textTransform',
'width',
'text-indent',
'padding-left',
'padding-right',
'border-width',
'box-sizing',
'word-break',
'white-space',
'textIndent',
'paddingLeft',
'paddingRight',
'borderWidth',
'boxSizing',
'wordBreak',
'whiteSpace',
];

export interface NodeType {
Expand Down Expand Up @@ -73,9 +73,9 @@ export function calculateNodeStyling(node: HTMLElement, useCache = false) {
parseFloat(style.getPropertyValue('border-bottom-width')) +
parseFloat(style.getPropertyValue('border-top-width'));

const sizingStyle = SIZING_STYLE.map(
(name) => `${name}:${style.getPropertyValue(name)}`,
).join(';');
const sizingStyle = Object.fromEntries(SIZING_STYLE.map(
(name) => [name, style.getPropertyValue(name.replace(/[A-Z]/g, letter => `-${letter.toLowerCase()}`))],
));

const nodeInfo: NodeType = {
sizingStyle,
Expand Down Expand Up @@ -123,10 +123,9 @@ export default function calculateAutoSizeStyle(
// Need to have the overflow attribute to hide the scrollbar otherwise
// text-lines will not calculated properly as the shadow will technically be
// narrower for content
hiddenTextarea.setAttribute(
'style',
`${sizingStyle};${HIDDEN_TEXTAREA_STYLE}`,
);
for (const [name, value] of Object.entries({ ...sizingStyle, ...HIDDEN_TEXTAREA_STYLE })) {
hiddenTextarea.style[name] = value;
}
hiddenTextarea.value = uiTextNode.value || uiTextNode.placeholder || '';

let minHeight: number | undefined = undefined;
Expand Down