Quelle ui.js Sprache: JAVA

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */

/* Checks to see if the root element is available and
* if the element is visible. We check the width of the element
* because it is more reliable than either checking a focus state or
* the visibleState or hidden property.
*/
export function isVisible() {
  const el = document.querySelector("#mount");
  return !!(el && el.getBoundingClientRect().width > 0);
}

/* Gets the line numbers width in the code editor
*/
export function getLineNumberWidth(editor) {
  const { gutters } = editor.display;
  const lineNumbers = gutters.querySelector(".CodeMirror-linenumbers");
  return lineNumbers?.clientWidth;
}

/**
* Forces the breakpoint gutter to be the same size as the line
* numbers gutter. Editor CSS will absolutely position the gutter
* beneath the line numbers. This makes it easy to be flexible with
* how we overlay breakpoints.
*/
export function resizeBreakpointGutter(editor) {
  const { gutters } = editor.display;
  const breakpoints = gutters.querySelector(".breakpoints");
  if (breakpoints) {
    breakpoints.style.width = `${getLineNumberWidth(editor)}px`;
  }
}

/**
* Forces the left toggle button in source header to be the same size
* as the line numbers gutter.
*/
export function resizeToggleButton(newSize) {
  const toggleButton = document.querySelector(
    ".source-header .toggle-button.start"
  );
  if (toggleButton) {
    toggleButton.style.width = `${newSize}px`;
  }
}

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