@metamask-previews/multichain-network-controller/dist/MultichainNetworkController.mjs.map

Multichain network controller

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The client ID of the EVM network to set active.\n   */\n  async #setActiveEvmNetwork(id: NetworkClientId): Promise<void> {\n    // Notify listeners that setActiveNetwork was called\n    this.messagingSystem.publish(\n      'MultichainNetworkController:networkDidChange',\n      id,\n    );\n\n    // Indicate that the non-EVM network is not selected\n    this.update((state) => {\n      state.isEvmSelected = true;\n    });\n\n    // Prevent setting same network\n    const { selectedNetworkClientId } = this.messagingSystem.call(\n      'NetworkController:getState',\n    );\n\n    if (id === selectedNetworkClientId) {\n      // EVM network is already selected, no need to update NetworkController\n      return;\n    }\n\n    // Update evm active network\n    await this.messagingSystem.call('NetworkController:setActiveNetwork', id);\n  }\n\n  /**\n   * Sets the active non-EVM network.\n   *\n   * @param id - The chain ID of the non-EVM network to set active.\n   */\n  #setActiveNonEvmNetwork(id: SupportedCaipChainId): void {\n    if (id === this.state.selectedMultichainNetworkChainId) {\n      if (!this.state.isEvmSelected) {\n        // Same non-EVM network is already selected, no need to update\n        return;\n      }\n\n      // Indicate that the non-EVM network is selected\n      this.update((state) => {\n        state.isEvmSelected = false;\n      });\n\n      // Notify listeners that setActiveNetwork was called\n      this.messagingSystem.publish(\n        'MultichainNetworkController:networkDidChange',\n        id,\n      );\n    }\n\n    // Notify listeners that setActiveNetwork was called\n    this.messagingSystem.publish(\n      'MultichainNetworkController:networkDidChange',\n      id,\n    );\n\n    this.update((state) => {\n      state.selectedMultichainNetworkChainId = id;\n      state.isEvmSelected = false;\n    });\n  }\n\n  /**\n   * Sets the active network.\n   *\n   * @param id - The non-EVM Caip chain ID or EVM client ID of the network to set active.\n   * @returns - A promise that resolves when the network is set active.\n   */\n  async setActiveNetwork(\n    id: SupportedCaipChainId | NetworkClientId,\n  ): Promise<void> {\n    if (isCaipChainId(id)) {\n      const isSupportedCaipChainId = checkIfSupportedCaipChainId(id);\n      if (!isSupportedCaipChainId) {\n        throw new Error(`Unsupported Caip chain ID: ${String(id)}`);\n      }\n      return this.#setActiveNonEvmNetwork(id);\n    }\n\n    return await this.#setActiveEvmNetwork(id);\n  }\n\n  /**\n   * Handles switching between EVM and non-EVM networks when an account is changed\n   *\n   * @param account - The account that was changed\n   */\n  readonly #handleSelectedAccountChange = (account: InternalAccount) => {\n    const { type: accountType, address: accountAddress } = account;\n    const isEvmAccount = isEvmAccountType(accountType);\n\n    // Handle switching to EVM network\n    if (isEvmAccount) {\n      if (this.state.isEvmSelected) {\n        // No need to update if already on evm network\n        return;\n      }\n\n      // Make EVM network active\n      this.update((state) => {\n        state.isEvmSelected = true;\n      });\n      return;\n    }\n\n    // Handle switching to non-EVM network\n    const nonEvmChainId = getChainIdForNonEvmAddress(accountAddress);\n    const isSameNonEvmNetwork =\n      nonEvmChainId === this.state.selectedMultichainNetworkChainId;\n\n    if (isSameNonEvmNetwork) {\n      // No need to update if already on the same non-EVM network\n      this.update((state) => {\n        state.isEvmSelected = false;\n      });\n      return;\n    }\n\n    this.update((state) => {\n      state.selectedMultichainNetworkChainId = nonEvmChainId;\n      state.isEvmSelected = false;\n    });\n  };\n\n  /**\n   * Subscribes to message events.\n   */\n  #subscribeToMessageEvents() {\n    // Handle network switch when account is changed\n    this.messagingSystem.subscribe(\n      'AccountsController:selectedAccountChange',\n      this.#handleSelectedAccountChange,\n    );\n  }\n\n  /**\n   * Registers message handlers.\n   */\n  #registerMessageHandlers() {\n    this.messagingSystem.registerActionHandler(\n      'MultichainNetworkController:setActiveNetwork',\n      this.setActiveNetwork.bind(this),\n    );\n  }\n}\n"]}