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Google Mail Signature HTML Code Editor

Add an inputbox for editing the HTML code of message signature on General tab of the settings page

Verzia zo dňa 13.04.2023. Pozri najnovšiu verziu.

// ==UserScript==
// @name        Google Mail Signature HTML Code Editor
// @namespace   https://greasyfork.org/en/users/85671-jcunews
// @version     1.0.1
// @license     AGPL v3
// @author      jcunews
// @description Add an inputbox for editing the HTML code of message signature on General tab of the settings page
// @match       https://mail.google.com/mail/*
// @grant       none
// ==/UserScript==

((rxBlockTags, timerCheck, eleSigContainer, eleSigHtml, sigHtmlChanged, prevFormatted) => {
  function check(e) {
    if (eleSigContainer = document.querySelector('.Ia .editable[aria-label="Signature"]')) {
      if (!document.getElementById("sigHtml")) {
        if (e = eleSigContainer.closest('.Ia')) e.style.height = "auto";
        eleSigContainer.insertAdjacentHTML("beforebegin", `\
<div style="padding:0 .3em;background:#bdd;font-weight:bold">HTML Code</div>
<textarea id="sigHtml" style="box-sizing:border-box;width:100%;min-height:8em;resize:vertical;font:10pt/1.5em monospace"></textarea>
<div style="padding:0 .3em;background:#bdd;font-weight:bold">Formatted Content</div>`);
        (eleSigHtml = document.getElementById("sigHtml")).oninput = () => {
          sigHtmlChanged = true;
          eleSigContainer.innerHTML = eleSigHtml.value
        };
        prevFormatted = ""
      }
      if (sigHtmlChanged) {
        sigHtmlChanged = false
      } else if (eleSigContainer.innerHTML !== prevFormatted) {
        eleSigHtml.value = prevFormatted = eleSigContainer.innerHTML.replace(rxBlockTags, "$1\n$2")
      }
    } else eleSigContainer = eleSigHtml = null
  }
  rxBlockTags = new RegExp("(>)[ \\t]*?(<(?:\
aside|br|blockquote|body|caption|center|col(?:group)?|datalist|dd|details|dialog|di[rv]|\
fieldset|figcaption|figure|footer|form|frame(?:set)?|h[1-6r]|head(?:er)?|html|\
main|menu|nav|ol|option|p(?:re)|section|summary|table|td|tbody|tfoot|th(?:ead)?|tr|ul\
)>)", "gi");
  (new MutationObserver(recs => {
    clearTimeout(timerCheck);
    timerCheck = setTimeout(check, 100);
    timerCheck = 0
  })).observe(document, {childList: true, subtree: true})
})()