H5 Container

Service, Session and Page

H5Service, H5Session and H5Page are the fundamental components in Nebula, please click here for more details.

JS Bridge

The Nebula JS Bridge is the interpretation broker between native layer and Javascript code, it translates the Javascript code into native byte code to be executed in platform framework, and also converts native data structure into Javascript object so they can be processed in Javascript layer.

There are many JS Bridge implementations out in the market, most of them are based on prompt interception, whereas Nebula uses console.log API instead. There are two drawbacks of prompt approach

• The prompt is a blocking API, the page will not be responding if native code execution takes too much time
• The prompt actually creates a modal window if the native webview does not intercept it. So if the JS code is called before JS bridge is initialized, the interception would not be executed and thus a modal window will be displayed and confuses the user

Event

The event dispatcher propagates event from service to pages, please refer here for detailed information.

API Manager

Nebula has already shipped lots of JS API for you to manipulate the UI, communicate with RCP service or even prompt dialog or toast. Please click here for more information about JS API.

Plugin Manager

If there is no existing JS API that meet your requirement, you can create a new plugin, put the native implementation code inside, register it to the Plugin manager, and invoke it via your custom JS API. please find more about customization here.