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Diffstat (limited to 'static/js/copycode.js')
| -rw-r--r-- | static/js/copycode.js | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/static/js/copycode.js b/static/js/copycode.js new file mode 100644 index 0000000..65758e7 --- /dev/null +++ b/static/js/copycode.js @@ -0,0 +1,43 @@ +/* global clipboard */ +/* eslint-disable no-console */ +function addCopyButtons(clipboard) { + document.querySelectorAll('pre > code').forEach(function (codeBlock) { + var button = document.createElement('button'); + button.className = 'copy-code-button'; + button.type = 'button'; + button.innerText = 'Copy'; + button.addEventListener('click', function () { + clipboard.writeText(codeBlock.innerText).then(function () { + /* Chrome doesn't seem to blur automatically, + leaving the button in a focused state. */ + button.blur(); + button.innerText = 'Copied!'; + setTimeout(function () { + button.innerText = 'Copy'; + }, 2000); + }, function (error) { + button.innerText = 'Error'; + }); + }); + var pre = codeBlock.parentNode; + if (pre.parentNode.classList.contains('highlight')) { + var highlight = pre.parentNode; + highlight.parentNode.insertBefore(button, highlight); + } else { + pre.parentNode.insertBefore(button, pre); + } + }); +} +if (navigator && navigator.clipboard) { + addCopyButtons(navigator.clipboard); +} else { + var script = document.createElement('script'); + script.src = + 'https://cdnjs.cloudflare.com/ajax/libs/clipboard-polyfill/2.7.0/clipboard-polyfill.promise.js'; + script.integrity = 'sha256-waClS2re9NUbXRsryKoof+F9qc1gjjIhc2eT7ZbIv94='; + script.crossOrigin = 'anonymous'; + script.onload = function () { + addCopyButtons(clipboard); + }; + document.body.appendChild(script); +}
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