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const BLAME_INFO_CLASSLIST = ['gl-border-t', 'gl-border-gray-500', 'gl-pt-3!'];
const PADDING_BOTTOM_LARGE = 'gl-pb-6!';
const PADDING_BOTTOM_SMALL = 'gl-pb-3!';
const VIEWER_SELECTOR = '.file-holder .blob-viewer';
const findLineNumberElement = (lineNumber) => document.getElementById(`L${lineNumber}`);
const findLineContentElement = (lineNumber) => document.getElementById(`LC${lineNumber}`);
export const calculateBlameOffset = (lineNumber) => {
if (lineNumber === 1) return '0px';
const blobViewerOffset = document.querySelector(VIEWER_SELECTOR)?.getBoundingClientRect().top;
const lineContentOffset = findLineContentElement(lineNumber)?.getBoundingClientRect().top;
return `${lineContentOffset - blobViewerOffset}px`;
};
export const shouldRender = (data, index) => {
const prevBlame = data[index - 1];
const currBlame = data[index];
const identicalSha = currBlame.commit.sha === prevBlame?.commit?.sha;
const lineNumberSmaller = currBlame.lineno < prevBlame?.lineno;
return !identicalSha || lineNumberSmaller;
};
export const toggleBlameClasses = (blameData, isVisible) => {
/**
* Adds/removes classes to line number/content elements to match the line with the blame info
* */
const method = isVisible ? 'add' : 'remove';
blameData.forEach(({ lineno, span }, index) => {
if (!shouldRender(blameData, index)) return;
const lineNumberEl = findLineNumberElement(lineno)?.parentElement;
const lineContentEl = findLineContentElement(lineno);
const lineNumberSpanEl = findLineNumberElement(lineno + span - 1)?.parentElement;
const lineContentSpanEl = findLineContentElement(lineno + span - 1);
lineNumberEl?.classList[method](...BLAME_INFO_CLASSLIST);
lineContentEl?.classList[method](...BLAME_INFO_CLASSLIST);
if (span === 1) {
lineNumberSpanEl?.classList[method](PADDING_BOTTOM_LARGE);
lineContentSpanEl?.classList[method](PADDING_BOTTOM_LARGE);
} else {
lineNumberSpanEl?.classList[method](PADDING_BOTTOM_SMALL);
lineContentSpanEl?.classList[method](PADDING_BOTTOM_SMALL);
}
});
};
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