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Improve line number rendering by copying font styles #16301

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Improve line number rendering by copying font styles #16301

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5 changes: 5 additions & 0 deletions app/src/protyle/render/highlightRender.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -141,11 +141,16 @@ export const lineNumberRender = (block: HTMLElement, zoom = 1) => {
const lineNumberTemp = document.createElement("div");
lineNumberTemp.className = "hljs";
// 不能使用 codeElement.clientWidth，被忽略小数点导致宽度不一致
// 需要手动复制字体样式 https://ld246.com/article/1762527296449
lineNumberTemp.setAttribute("style", `padding-left:${codeElement.style.paddingLeft};
width: ${codeElement.getBoundingClientRect().width / zoom}px;
white-space:${codeElementStyle.whiteSpace};
word-break:${codeElementStyle.wordBreak};
font-variant-ligatures:${codeElementStyle.fontVariantLigatures};
font-family:${codeElementStyle.fontFamily};
font-size:${codeElementStyle.fontSize};
line-height:${codeElementStyle.lineHeight};
font-weight:${codeElementStyle.fontWeight};
padding-right:0;max-height: none;box-sizing: border-box;position: absolute;padding-top:0 !important;padding-bottom:0 !important;min-height:auto !important;`);
lineNumberTemp.setAttribute("contenteditable", "true");
block.insertAdjacentElement("afterend", lineNumberTemp);
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