Function focusThisFrame

content_scripts/vimium_frontend.js:319–336

(request)

// Called from the backend in order to change frame focus.
//
function focusThisFrame(request) {
  // It should never be the case that we get a forceFocusThisFrame request on a window that isn't
  // focusable, because the background script checks that the window is focusable before sending the
  // focusFrame message.
  if (!request.forceFocusThisFrame && !isWindowFocusable()) return;

  Utils.nextTick(function () {
    globalThis.focus();
    // On Firefox, window.focus doesn't always draw focus back from a child frame (bug 554039). We
    // blur the active element if it is an iframe, which gives the window back focus as intended.
    if (document.activeElement.tagName.toLowerCase() === "iframe") {
      document.activeElement.blur();
    }
    if (request.highlight) {
      flashFrame();
    }
  });
}

// Used by the focusInput command.
globalThis.lastFocusedInput = (function () {