https://github.com/willnode/webviewhook

Exposed Unity Editor WebView API
https://github.com/willnode/webviewhook

cef chrome experimental unity unity-editor

Last synced: 13 days ago
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Exposed Unity Editor WebView API

• Host: GitHub
• URL: https://github.com/willnode/webviewhook
• Owner: willnode
• License: mit
• Archived: true
• Created: 2018-01-23T11:54:41.000Z (about 7 years ago)
• Default Branch: master
• Last Pushed: 2020-12-21T14:53:48.000Z (about 4 years ago)
• Last Synced: 2024-11-10T21:40:08.232Z (3 months ago)
• Topics: cef, chrome, experimental, unity, unity-editor
• Language: C#
• Size: 356 KB
• Stars: 117
• Watchers: 8
• Forks: 17
• Open Issues: 5
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# WebViewHook

> Warning: WebViewHook is obsolete for Unity 2020 and Above due to removal of Asset Store Browsing in Unity Editor. This project is soon to be archived.

This is a code snippet to access a hidden `WebView` API from Unity Editor, and load it to `EditorWindow`.

![Screenshot](Screenshots/Demo.png)

## Code

Download [WebViewHook](Assets/Editor/WebViewHook.cs). See usage example in [WebWindow](Assets/Editor/WebWindow.cs) or [WebEditor](Assets/Editor/WebEditor.cs). You may download the whole project if necessary.

## Usage

Minimum code to get WebView working:

```c#

class WebViewDemo : EditorWindow

{

    WebViewHook webView;

    void OnEnable()

    {

        if (!webView)

        {

            // create webView

            webView = CreateInstance();

        }

    }

    public void OnBecameInvisible()

    {

        if (webView)

        {

            // signal the browser to unhook

            webView.Detach();

        }

    }

    void OnDestroy()

    {

        //Destroy web view

        DestroyImmediate(webView);

    }

    void OnGUI()

    {

        // hook to this window

        if (webView.Hook(this))

            // do the first thing to do

            webView.LoadURL("https://google.com");

        if (ev.type == EventType.Repaint)

        {

            // keep the browser aware with resize

            webView.OnGUI(new Rect(Vector2.zero, this.position.size));

        }

    }

}

```

## Two Way Communication

Using `LoadURL`, `LoadHTML` and `ExecuteJavascript` you only can send information to WebView.

To extract informations from WebView you need external communication, and the easiest way to do this is by using [Web Socket](https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API).

To get web socket server running you need to download [WebSocket-Sharp](https://github.com/sta/websocket-sharp) and a [script utility from this repo](Assets/Editor/WebSocketHook.cs).

See [WebData](Assets/Editor/WebData.cs) for minimal working example of using `WebSocketHook` to hook C# into javascript variable.

## More Information and Caveats

**This is an editor only solution.** If you're looking to add WebView to a game build then this is not the repo you're looking for.

The technology behind `WebView` is [Chrome Embedded Framework](https://en.wikipedia.org/wiki/Chromium_Embedded_Framework), [version 37](https://twitter.com/willnode/status/955079655630913541). In Windows it's contained inside the gigantic `libcef.dll`.

`WebView` in Unity is just like Chrome, with background-color default to darkgrey and no plugins (Flash/Java/PDF) allowed.

I solving bugs as I can, but of course limited. If you can't open a specific website, mostly comes down to the fact that Unity haven't upgrade their CEF browser.