refactor: General performance/style improvements (#262)

Adam Brangenberg

2022-12-29 614a6222a1638c159d2ac9c005be5b2ddec78dd2

 assets/js/clipboard.js

@@ -8,33 +8,38 @@
    let els = document.getElementsByClassName("highlight");
    // for each highlight
    for (let i = 0; i < els.length; i++) {
        if (els[i].getElementsByClassName("clipboard-button").length) continue;
        try {
            if (els[i].getElementsByClassName("clipboard-button").length) continue;

        // find pre > code inside els[i]
        let codeBlocks = els[i].getElementsByTagName("code");
            // find pre > code inside els[i]
            let codeBlocks = els[i].getElementsByTagName("code");

         // line numbers are inside first code block
        let lastCodeBlock = codeBlocks[codeBlocks.length - 1];
        const button = document.createElement("button");
        button.className = "clipboard-button";
        button.type = "button";
        button.innerHTML = svgCopy;
        // remove every second newline from lastCodeBlock.innerText
        button.addEventListener("click", () => {
            navigator.clipboard.writeText(lastCodeBlock.innerText.replace(/\n\n/g, "\n")).then(
                () => {
                    button.blur();
                    button.innerHTML = svgCheck;
                    setTimeout(() => {
                     button.innerHTML = svgCopy
                     button.style.borderColor = ""
                    }, 2000);
                },
                (error) => (button.innerHTML = "Error")
            );
        });
        // find chroma inside els[i]
        let chroma = els[i].getElementsByClassName("chroma")[0];
        els[i].insertBefore(button, chroma);
            // line numbers are inside first code block
            let lastCodeBlock = codeBlocks[codeBlocks.length - 1];
            const button = document.createElement("button");
            button.className = "clipboard-button";
            button.type = "button";
            button.innerHTML = svgCopy;
            button.ariaLabel = "opy the shown code";
            // remove every second newline from lastCodeBlock.innerText
            button.addEventListener("click", () => {
                navigator.clipboard.writeText(lastCodeBlock.innerText.replace(/\n\n/g, "\n")).then(
                  () => {
                      button.blur();
                      button.innerHTML = svgCheck;
                      setTimeout(() => {
                          button.innerHTML = svgCopy
                          button.style.borderColor = ""
                      }, 2000);
                  },
                  (error) => (button.innerHTML = "Error")
                );
            });
            // find chroma inside els[i]
            let chroma = els[i].getElementsByClassName("chroma")[0];
            els[i].insertBefore(button, chroma);
        } catch(error) {
            console.debug(error);
        }
    }
}