VariableTooltipHelper.js

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/* 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/. */

"use strict";

const XHTML_NS = "http://www.w3.org/1999/xhtml";

/**

 * Set the tooltip content of a provided HTMLTooltip instance to display a

 * variable preview matching the provided text.

 * @param  {HTMLTooltip} tooltip

 *         The tooltip instance on which the text preview content should be set.

 * @param  {Document} doc

 *         A document element to create the HTML elements needed for the tooltip.

 * @param  {String} text

 *         Text to display in tooltip.

*/

function setVariableTooltip(tooltip, doc, text) {

  // Create tooltip content

  const div = doc.createElementNS(XHTML_NS, "div");

  div.classList.add("devtools-monospace", "devtools-tooltip-css-variable");

  div.textContent = text;

  tooltip.panel.innerHTML = "";

  tooltip.panel.appendChild(div);

  tooltip.setContentSize({ width: "auto", height: "auto" });

module.exports.setVariableTooltip = setVariableTooltip;