47 lines
1.5 KiB
HTML
47 lines
1.5 KiB
HTML
<script async
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crossorigin="anonymous"
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issue-term="{{ site.utterances.issue_term }}"
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label="{{ site.utterances.label }}"
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{%- if site.utterances.follow_site_theme -%}
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onload="initUtterancesTheme()"
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{%- endif -%}
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repo="{{ site.utterances.repo }}"
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src="https://utteranc.es/client.js"
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theme="{{ site.utterances.theme }}">
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</script>
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{%- if site.utterances.follow_site_theme -%}
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<script>
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const setUtterancesTheme = (dataTheme) => {
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const iframe = document.querySelector('.utterances-frame');
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if (iframe) {
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const utterancesTheme = dataTheme === 'dark' ? 'github-dark' : 'github-light'
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const message = {
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type: 'set-theme',
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theme: utterancesTheme
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};
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iframe.contentWindow.postMessage(message, 'https://utteranc.es');
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}
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}
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// init theme
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const initUtterancesTheme = () => {
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const iframe = document.querySelector('.utterances-frame');
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if (!iframe) return
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iframe.onload = () => {
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setUtterancesTheme(document.documentElement.getAttribute('data-theme'))
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}
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}
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// dynamic change
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const observer = new MutationObserver((mutationsList, observer) => {
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for (let mutation of mutationsList) {
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if (mutation.type === 'attributes' && mutation.attributeName === 'data-theme') {
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setUtterancesTheme(document.documentElement.getAttribute('data-theme'))
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}
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}
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});
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observer.observe(document.documentElement, {attributes: true, childList: false, subtree: false});
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</script>
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{%- endif -%}
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