WebView2Runtime

This package provides the following capabilities for managing and installing the WebView2 runtime:

• Retrieve version of installed WebView2 runtime
• Determine if the installed version is older than the required version
• Download and run the official Microsoft Bootstrapper
• Run an embedded version of the official Microsoft Bootstrapper
• Open a browser to the WebView2 download page
• Utility methods for user notifications and confirmations

Usage

The general workflow should be:

• Check if there's a version installed using GetInstalledVersion()
• If so, check it's new enough to support your application using IsOlderThan()
• Decide what strategy you're comfortable with to inform the user / install the runtime.

Documentation

Please consult the package documentation.

Example

package mypackage

import "github.com/leaanthony/webview2runtime"

func BootstrapRuntime() error {
    var err error
    shouldInstall := true
    message := "The WebView2 runtime is required. Press Ok to install."
    installedVersion := webview2runtime.GetInstalledVersion()
    if installedVersion != nil {
        shouldInstall, err = installedVersion.IsOlderThan("90.0.818.66")
        if err != nil {
            _ = webview2runtime.Error(err.Error(), "Error")
            return err
        }
        if shouldInstall {
            message = "The WebView2 runtime needs updating. Press Ok to install."
        }
    }
    if shouldInstall {
        confirmed, err := webview2runtime.Confirm(message, "Missing Requirements")
        if err != nil {
            return err
        }
        if confirmed {
            installedCorrectly, err := webview2runtime.InstallUsingBootstrapper()
            if err != nil {
                _ = webview2runtime.Error(err.Error(), "Error")
                return err
            }
            if !installedCorrectly {
                err = webview2runtime.Error("The runtime failed to install correctly. Please try again.", "Error")
                return err
            }
        }
    }
    return nil
}