nativescript-webview-ext-fork v7.0.3

@nota/nativescript-webview-ext

Extended WebView for NativeScript which adds "x-local"-custom-scheme for loading local-files, handle events between WebView and NativeScript, JavaScript execution, injecting CSS and JS-files. Supports Android 19+ and iOS9+.

Features

• Adds a custom-scheme handler for x-local:// to the webview for loading of resources inside the webview.
  • Note: This is not supported on iOS <11
• Adds support for capturing URLs.
  • This allows the app to open external links in an external browser and handle tel-links
• Added functions like:
  • executeJavaScript(code: string) for executing JavaScript-code and getting result.
  • executePromise(code: string) for calling promises and getting the result.
  • getTitle() returns document.title.
• Two-Way event listeners between NativeScript and WebView
  • From NativeScript to WebView
  • From WebView to NativeScript
• Adds functions to inject css- and javascript-files.
  • Into the current page.
  • Auto-injected on page load.
• Polyfills:
  • Promise
  • Fetch API (overrides Native API on Android to support x-local:// and file://)
• Allows alert, confirm and prompt with WkWebView.
• Supports:
  • Android 19+
  • iOS 11+: Full support
  • iOS <11: Partial support

Installation

Describe your plugin installation steps. Ideally it would be something like:

tns plugin add @nota/nativescript-webview-ext

Update minSdkVersion to 19 or higher

Android SDK 19 is required, update App_Resources/Android/app.gradle:

android {
  defaultConfig {
    minSdkVersion 19 // change this line
    generatedDensities = []
  }
  aaptOptions {
    additionalParameters "--no-version-vectors"
  }
}

Core support

Load in template like this:

<Page class="page" xmlns="http://schemas.nativescript.org/tns.xsd" xmlns:nota="@nota/nativescript-webview-ext">
    <ActionBar class="action-bar">
        <Label class="action-bar-title" text="Home"></Label>
    </ActionBar>

    <nota:WebViewExt src="https://nota.dk"></<nota:WebViewExt>
</Page>

Angular support

Import WebViewExtModule from @nota/nativescript-webview-ext/angular and add it to your NgModule.

This registers the element WebViewExt. Replace the <WebView> tag with <WebViewExt>

Vue support

Import @nota/nativescript-webview-ext/vue in your app entry file (likely app.js or main.js).

This registers the element WebViewExt. Replace the <WebView> tag with <WebViewExt>

Usage

Limitations

The custom-scheme handler for x-local:// is only supported by Android and iOS 11+

Custom-scheme support for iOS <11 was removed because of ITMS-90809.

API

NativeScript View

Events

WebView

Inside the WebView we have the nsWebViewBridge for sending events between the NativeScript-layer and the WebView. Note: The bridge will only be available DOMContentLoaded or onload inside the WebView.

Waiting for nsWebViewBridge to be available

    window.addEventListener("ns-bridge-ready", function(e) {
        var nsWebViewBridge = e.detail || window.nsWebViewBridge;
        
        // do stuff here
    });

Possible features to come:

• Cookie helpers?
• Share cache with native-layer?

Android

• Settings
  • AppCache?
  • User agent?

iOS

• Settings?

Demo and unit tests

Running the demo

To run the demo-project, the plugin must be build locally and a http-server must be running.

The easiest way to run the demo is to follow these steps:

• Clone the git repository from https://github.com/Notalib/nativescript-webview-ext.git
• Go into the src-folder
• Use the npm-scripts:
  • npm run demo.ios
  • npm run demo.android

Running the unit-tests

• Clone the git repository from https://github.com/Notalib/nativescript-webview-ext.git
• Go into the src-folder
• Use the npm-scripts:
  • npm run test.ios
  • npm run test.android

License

Apache License Version 2.0, January 2004

About Nota

Nota is the Danish Library and Expertise Center for people with print disabilities. To become a member of Nota you must be able to document that you cannot read ordinary printed text. Members of Nota are visually impaired, dyslexic or otherwise impaired. Our purpose is to ensure equal access to knowledge, community participation and experiences for people who're unable to read ordinary printed text.