Class ScriptManager

javascript/selenium-webdriver/bidi/scriptManager.js:41–559

* Represents class to run events and commands of Script module. * Described in https://w3c.github.io/webdriver-bidi/#module-script. * @class

 * @class
 */
class ScriptManager {
  #callbackId = 0
  #listener

  constructor(driver) {
    this._driver = driver
    this.#listener = new Map()
    this.#listener.set(ScriptEvent.MESSAGE, new Map())
    this.#listener.set(ScriptEvent.REALM_CREATED, new Map())
    this.#listener.set(ScriptEvent.REALM_DESTROYED, new Map())
  }

  addCallback(eventType, callback) {
    const id = ++this.#callbackId

    const eventCallbackMap = this.#listener.get(eventType)
    eventCallbackMap.set(id, callback)
    return id
  }

  removeCallback(id) {
    let hasId = false
    for (const [, callbacks] of this.#listener) {
      if (callbacks.has(id)) {
        callbacks.delete(id)
        hasId = true
      }
    }

    if (!hasId) {
      throw Error(`Callback with id ${id} not found`)
    }
  }

  invokeCallbacks(eventType, data) {
    const callbacks = this.#listener.get(eventType)
    if (callbacks) {
      for (const [, callback] of callbacks) {
        callback(data)
      }
    }
  }

  async init(browsingContextIds) {
    if (!(await this._driver.getCapabilities()).get('webSocketUrl')) {
      throw Error('WebDriver instance must support BiDi protocol')
    }

    this.bidi = await this._driver.getBidi()
    this._browsingContextIds = browsingContextIds
  }

  /**
   * Disowns the handles in the specified realm.
   *
   * @param {string} realmId - The ID of the realm.
   * @param {string[]} handles - The handles to disown to allow garbage collection.
   * @returns {Promise<void>} - A promise that resolves when the command is sent.