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feat(article): copy button for highlight block (#295)

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This button only shows on highlighted code blocks, because it uses the wrapper div.highlight
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Jimmy Cai 2021-08-08 18:15:27 +02:00 committed by GitHub
parent 4a0cbac234
commit 24915a912f
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2 changed files with 58 additions and 0 deletions
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26
assets/scss/partials/layout/article.scss
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@ -415,4 +415,30 @@
margin-right: calc((var(--card-padding)) * -1);
width: calc(100% + var(--card-padding) * 2);
}
.highlight {
position: relative;
&:hover {
.copyCodeButton {
opacity: 1;
}
}
}
.copyCodeButton {
position: absolute;
top: calc(var(--card-padding));
right: 0;
background: var(--card-background);
border: none;
box-shadow: var(--shadow-l2);
border-radius: var(--tag-border-radius);
padding: 8px 16px;
color: var(--card-text-color-main);
cursor: pointer;
font-size: 14px;
opacity: 0;
transition: opacity 0.3s ease;
}
}

32
assets/ts/main.ts
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@ -54,6 +54,38 @@ let Stack = {
observer.observe(articleTile)
}
/**
* Add copy button to code block
*/
const codeBlocks = document.querySelectorAll('.article-content .highlight');
const copyText = `Copy`,
copiedText = `Copied!`;
codeBlocks.forEach(codeBlock => {
const copyButton = document.createElement('button');
copyButton.innerHTML = copyText;
copyButton.classList.add('copyCodeButton');
codeBlock.appendChild(copyButton);
const pre = codeBlock.getElementsByTagName('pre');
const code = pre[0].textContent;
copyButton.addEventListener('click', () => {
navigator.clipboard.writeText(code)
.then(() => {
copyButton.textContent = copiedText;
setTimeout(() => {
copyButton.textContent = copyText;
}, 1000);
})
.catch(err => {
alert(err)
console.log('Something went wrong', err);
});
});
});
new StackColorScheme(document.getElementById('dark-mode-toggle'));
}
}