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path: root/static/navigator.js
blob: b1e73687e82e005a9a41a79ca3b382367c9de9cd (plain)
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let pageTransitionLock = false;
let pageTransitionAnimating = false;
let pageTransitionCleared = false;

function bindAllRelativeAnchors() {
  document.querySelectorAll('a[href^="/"]:not([navigator-bind])').forEach((el) => {
    const url = new URL(el.href);

    if (url.pathname == window.location.pathname) {
      if (url.href.match(/#.+$/)) {
        return
      }
    }

    el.setAttribute('navigator-bind', 'true');
    el.addEventListener('click', (e) => {
      e.preventDefault();
      goToPage((new URL(e.target.href)).pathname);
    });
  });
}

function showContentIfPageIsLoaded () {
  if (!pageTransitionLock) {
    showContent(() => {
      pageTransitionAnimating = false;
      bindAllRelativeAnchors();
    });
  }
}

function goToPage(url, cb) {
  if (pageTransitionLock) return;
  pageTransitionLock = true;
  pageTransitionAnimating = true;
  pageTransitionCleared = false;

  blockUserScrolling();

  let footerCommandPrompt = document.querySelector('#footer-command-prompt .text');
  history.pushState({date: "new url -> " + url}, url, url);

  fetch(url).then((response) => {
    response.text().then(html => {
      let parser = new DOMParser();
      let htmlDOM = parser.parseFromString(html, 'text/html');

      let mainContainer = document.querySelector('main');

      function swapHTMLContent() {
        if (!pageTransitionCleared) {
          window.requestAnimationFrame(swapHTMLContent);
          return;
        }

        mainContainer.innerHTML = '';
        mainContainer.innerHTML = htmlDOM.querySelector('main').innerHTML;
        if (headerAnimationTerminated) showContent(bindAllRelativeAnchors);
        pageTransitionLock = false;
      }

      swapHTMLContent();
    });
  });

  typingAnimation(
    footerCommandPrompt,
    'clear',
    0,
    () => {
      clearHeaderTerminal(() => {
        hideContent();
        pageTransitionCleared = true;
        footerCommandPrompt.innerHTML = '';
        if (url == "/") {
          headerTerminalExecute(
            "source jefferson.sh",
            "source jefferson.sh",
            showContentIfPageIsLoaded,
          );
        } else if (url == "/contato") {
          headerTerminalExecute(
            "source pages/contato.sh",
            "source pages/contato.sh",
            showContentIfPageIsLoaded,
          );
        } else if (url.match(/\/artigos/)) {
          headerTerminalExecute(
            `ARTICLE_FILE=.${decodeURI(url).replace(' ', '\\ ')};source pages/article.sh`,
            `ARTICLE_FILE=.${decodeURI(url).replace(' ', '\\ ')};source pages/article.sh`,
            showContentIfPageIsLoaded,
          );
        }
      });
    }
  );
}