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fix typing in markdown input causing page scroll position changes

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SeinopSys 2021-10-01 00:43:04 +02:00
parent 27af96fe3a
commit 2bb86c9e3b
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GPG key ID: 9BFB053C1BA6C5C4
1 changed files with 2 additions and 4 deletions
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6
assets/js/preview.js
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@ -61,15 +61,13 @@ function getPreview(body, anonymous, previewLoading, previewIdle, previewContent
* @param {E} e
*/
function resizeTextarea(e) {
// Reset inline height for fresh calculations
e.target.style.height = '';
const { borderTopWidth, borderBottomWidth, height } = window.getComputedStyle(e.target);
// Add scrollHeight and borders (because border-box) to get the target size that avoids scrollbars
const contentHeight = e.target.scrollHeight + parseFloat(borderTopWidth) + parseFloat(borderBottomWidth);
// Get the original default height provided by page styles
const regularHeight = parseFloat(height);
const currentHeight = parseFloat(height);
// Limit textarea's size to between the original height and 1000px
const newHeight = Math.max(regularHeight, Math.min(1000, contentHeight));
const newHeight = Math.max(currentHeight, Math.min(1000, contentHeight));
e.target.style.height = `${newHeight}px`;
}