Tecnoblog 使用 Discourse 评论系统的体验

贡献 功能
29

是的，但据我理解并回忆，这使 Discourse 能够检测操作系统是否启用了深色模式，并据此自行调整。我发起的帖子（是对您链接帖子的回复，而该帖子也链接到了它）讨论的是博客中手动切换浅色和深色模式的开关/按钮（无论操作系统的模式如何）。这听起来对吗（从而使我之前的问题依然相关）？

明确一下，这是我请人编写的用于我博客的脚本，我想现在需要进行一些调整（也许只需要更改几个类，我不确定）。

<style>:root.dark{background: #1D2224}</style>
<script>
    const discourseUrl = 'https://ff2f.discourse.group';
    const clearDarkModeThrottle = () => window.darkThrottled = false;
    window.isDark = false;
    window.discourseLoaded = false;
    window.setDarkMode = state => {
        window.isDark = state;
        window.darkThrottled = true;
        localStorage.setItem('darkmode-enabled', state);
        Array.from(document.getElementsByClassName('dm-input')).forEach(element => element.checked = state);
        document.documentElement.classList[state ? 'add' : 'remove']('dark');
        setTimeout(clearDarkModeThrottle, 250);
        window.discourseLoaded && setIframeStyle();
    };
    let sub = () => {};
    if (localStorage.getItem('darkmode-enabled') === "true") {
        document.documentElement.classList.add('dark');
        // 在 domContentLoaded 后更新元素
        sub = () => window.setDarkMode(true);
    }
    document.addEventListener('DOMContentLoaded', () => {
        Array.from(document.getElementsByClassName('darkmode-toggle'))
            .forEach(element => element.onchange = darkmodeToggled);
        function darkmodeToggled() {
            const input = this.querySelector('input');
            window.darkThrottled ? (input.checked = !input.checked) : window.setDarkMode(input.checked);
        }
        sub();
        sub = null;
    });

    const handleMessageListener = (event) => {
        var origin = event.origin;
        if (origin === discourseUrl) {
            setIframeStyle();
            window.discourseLoaded = true;
        }
    };

    const setIframeStyle = () => {
        const iframe = document.getElementById("discourse-embed-frame");
        if (iframe && iframe.contentWindow) {
            iframe.contentWindow.postMessage(
                window.isDark ? "dark" : "light",
                discourseUrl
            );
        }
    };

  window.addEventListener("message", handleMessageListener);
</script>