thread-states.js - mozsearch

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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 { Front, types } = require("resource://devtools/shared/protocol.js");

module.exports = function ({ resource, watcherFront, targetFront }) {

  // only "paused" have a frame attribute, and legacy listeners are already passing a FrameFront

  if (resource.frame && !(resource.frame instanceof Front)) {

    // Use ThreadFront as parent as debugger's commands.js expects FrameFront to be children

    // of the ThreadFront.

    resource.frame = types

      .getType("frame")

      .read(resource.frame, targetFront.threadFront);

  // If we are using server side request (i.e. watcherFront is defined)

  // Fake paused and resumed events as the thread front depends on them.

  // We can't emit "EventEmitter" events, as ThreadFront uses `Front.before`

  // to listen for paused and resumed. ("before" is part of protocol.js Front and not part of EventEmitter)

  if (watcherFront) {

    if (resource.state == "paused") {

      targetFront.threadFront._beforePaused(resource);

    } else if (resource.state == "resumed") {

      targetFront.threadFront._beforeResumed(resource);

  return resource;

};