51 lines
1.5 KiB
HTML
51 lines
1.5 KiB
HTML
<!-- https://utteranc.es/ -->
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<script src="{{ site.data.assets[origin].utterances.js }}"
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repo="{{ site.comments.utterances.repo }}"
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issue-term="{{ site.comments.utterances.issue_term }}"
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crossorigin="anonymous"
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async>
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</script>
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<script type="text/javascript">
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$(function() {
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const origin = "https://utteranc.es";
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const iframe = "iframe.utterances-frame";
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const lightTheme = "github-light";
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const darkTheme = "github-dark";
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let initTheme = lightTheme;
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if ($("html[data-mode=dark]").length > 0
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|| ($("html[data-mode]").length == 0
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&& window.matchMedia("(prefers-color-scheme: dark)").matches)) {
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initTheme = darkTheme;
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}
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addEventListener("message", (event) => {
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let theme;
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/* credit to <https://github.com/utterance/utterances/issues/170#issuecomment-594036347> */
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if (event.origin === origin) {
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/* page initial */
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theme = initTheme;
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} else if (event.source === window && event.data &&
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event.data.direction === ModeToggle.ID) {
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/* global theme mode changed */
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const mode = event.data.message;
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theme = (mode === ModeToggle.DARK_MODE ? darkTheme : lightTheme);
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} else {
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return;
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}
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const message = {
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type: "set-theme",
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theme: theme
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};
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const utterances = document.querySelector(iframe).contentWindow;
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utterances.postMessage(message, origin);
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});
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});
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</script>
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