@kwu-work/cordova-plugin-browsertab/README.md

In-app browser tabs for Android and iOS

# @kwu-work/cordova-plugin-browsertab
  Cordova plugin to open URLs in browser tabs with access to cookies (iOS, Android)

# Platforms

* iOS ([SFSafariViewController](https://developer.apple.com/documentation/safariservices/sfsafariviewcontroller), [SFAuthenticationSession](https://developer.apple.com/documentation/safariservices/sfauthenticationsession) since iOS 11)
* Android ([Chrome Custom Tabs](https://developer.chrome.com/multidevice/android/customtabs) support since Chrome 45)

## Usage

To open a URL in an in-app browser tab:

    cordova.plugins.browsertab.openUrl(url, options, onSuccess, onError);

Your Cordova WebView continues to run Javascript. So you can close the tab later:
__WARNING!!!__ On Android this method doesn't work. User should close this window manually or you can do it in JS open app by navigate to `<scheme of app>://`

    cordova.plugins.browsertab.close();

You can also open a URL in the system browser:

    cordova.plugins.browsertab.openUrlInBrowser(url, options, onSuccess, onError);

In this case, your WebView will not continue to run Javascript until you switch back to the app.

## oAuth

Typically you would use this plugin for authentication flows, to grab oAuth tokens. In this case, you will have to supply the `scheme` option to be used in iOS 11:

    cordova.plugins.browsertab.openUrl(url, {scheme: "myapp://"}, onSuccess, onError);

On iOS 11 the user will have an additional dialog before the flow proceeds, telling the user your app wants to authenticate with a certain website.

Note that the oAuth flows such as [facebook login](https://developers.facebook.com/docs/facebook-login/manually-build-a-login-flow/) will only agree to redirect you to a web url that begins with `http://` or `https://`. That means a successful login will still leave the user looking at the browser tab. Thus, you should redirect them to your website, which should then use `location.href = "myapp://something?parameters=here";` to send a message back to your Cordova app. Alternatively, you can set up [Universal Links](https://developer.apple.com/library/content/documentation/General/Conceptual/AppSearch/UniversalLinks.html) on iOS and [App Links](https://developer.android.com/training/app-links/index.html) on Android to make this step more seamless (and possibly more future-proof if custom URL schemes ever go away).

In any case, you will need a plugin such as [this one](https://github.com/EddyVerbruggen/Custom-URL-scheme) to run Javascript on `handleOpenURL`. This returns control to your WebView and you can now call `close()` on the previously opened browser tab.

## Building

Install Cordova if you haven't already:

    npm install -g cordova

Then from the root directory:

    cd demo
    cordova platform add ios
    cordova run ios
    cordova platform add android
    cordova run android

## Development

During development if you want to make changes to the plugin you need to force
a rebuild and add the plugin from source, like so (from the demo directory):

    cordova plugin remove @kwu-work/cordova-plugin-browsertab
    cordova plugin add ../plugin

To refresh the platform build:

    cordova platform remove ios
    cordova platform add ios

To set breakpoints, etc, open the project in the code editor:

    cordova platform add ios
    open platforms/ios/BrowserTabDemo.xcworkspace