fune/browser/components/extensions/ext-c-devtools-inspectedWindow.js

/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* vim: set sts=2 sw=2 et tw=80: */
"use strict";

this.devtools_inspectedWindow = class extends ExtensionAPI {
  getAPI(context) {
    // `devtoolsToolboxInfo` is received from the child process when the root devtools view
    // has been created, and every sub-frame of that top level devtools frame will
    // receive the same information when the context has been created from the
    // `ExtensionChild.createExtensionContext` method.
    let tabId = (context.devtoolsToolboxInfo &&
                 context.devtoolsToolboxInfo.inspectedWindowTabId);

    return {
      devtools: {
        inspectedWindow: {
          get tabId() {
            return tabId;
          },
        },
      },
    };
  }
};