BrowserComponent.cpp

namespace tomduncalf
{
namespace BrowserIntegration
{
    BrowserComponent::BrowserComponent(): juce::WindowsWebView2WebBrowserComponent (false)
    {
        loadUI();
    }

    BrowserComponent::BrowserComponent (juce::String initialUrl): juce::WindowsWebView2WebBrowserComponent (false)
    {
        goToURL (initialUrl);
    }

    void BrowserComponent::loadUI()
    {
#if JUCE_MAC || JUCE_IOS
        NSString* devServerIpNsString = [[NSBundle mainBundle] objectForInfoDictionaryKey:@"DevServerIP"];
        // TODO [NSBundle mainBundle] refers to the plugin host when running as AudioUnit
        // so can't access plist - hardcoding for now
        auto devServerIp = devServerIpNsString == nil ? "127.0.0.1" : [devServerIpNsString UTF8String];
#else
        auto devServerIp = "127.0.0.1";
#endif

#if BROWSER_INTEGRATION_USE_DEV_SERVER_IN_DEBUG && JUCE_DEBUG
        auto url = juce::String ("http://") + devServerIp + ":3000";
#else
        auto url = "file://" + juce::File::getSpecialLocation (juce::File::SpecialLocationType::currentApplicationFile)
#if JUCE_MAC
                                   .getChildFile ("Contents")
                                   .getChildFile ("Resources")
#endif
                                   .getChildFile ("build")
                                   .getChildFile ("index.html")
                                   .getFullPathName();
#endif

        DBG ("Loading URL: " + url);
        goToURL (url);
    }

    void BrowserComponent::sendMessage (const juce::var message, bool suppressLog)
    {
        const auto jsonMessage = juce::JSON::toString (message, true);
        const auto url = "javascript:" + jsCallbackName + "(" + jsonMessage + ")";

        if (! suppressLog)
            DBG ("sendMessage: " << jsonMessage);

        goToURL (url);
    }

    bool BrowserComponent::pageAboutToLoad (const juce::String& newURL)
    {
        if (newURL.startsWith (urlSchema))
        {
            if (onMessageCallback)
            {
                auto messageString = juce::URL::removeEscapeChars (newURL.substring (urlSchema.length()));
                auto message = juce::JSON::parse (messageString);

                DBG ("message: " << messageString);

                onMessageCallback (message);
            }
            else
            {
                DBG ("No onMessageCallback defined in BrowserComponent");
                jassertfalse;
            }

            return false;
        }
        else
            return true;
    }

    void BrowserComponent::setOnMessageCallback (std::function<void (juce::var)> cb)
    {
        onMessageCallback = cb;
    }

    void BrowserComponent::scriptMessageReceived (const juce::var messageBody)
    {
        onMessageCallback (messageBody);
    }
}// namespace BrowserIntegration
}// namespace tomduncalf