Example usage for com.google.gwt.chrome.crx.client.events SendResponse invoke

Introduction

In this page you can find the example usage for com.google.gwt.chrome.crx.client.events SendResponse invoke.

Prototype

public final native void invoke(JavaScriptObject response) ;

Source Link

Usage

From source file:com.google.speedtracer.client.BackgroundPage.java

License:Apache License

private void listenForExternalExtensions(final ExternalExtensionListener exListener) {
    // External extensions can also be used as data sources. Hook this up.
    Chrome.getExtension().getOnRequestExternalEvent().addListener(new RequestExternalEvent.Listener() {
        public void onRequestExternal(JavaScriptObject request, Sender sender, SendResponse sendResponse) {
            // Ensure the extension attempting to connect is not blacklisted.
            if (!ExternalExtensionDataInstance.isBlackListed(sender.getId())) {
                final ConnectRequest connectRequest = request.cast();
                final int browserId = connectRequest.getBrowserId();

                BrowserConnectionState connection = browserConnectionMap.get(browserId);

                if (connection == null) {
                    // If this is the first opened connection for this browser type,
                    // then we provision an entry for it in the browser map.
                    exListener.onBrowserConnected(browserId);
                }/*  w  ww  .  ja  v a2 s .com*/

                final int tabId = connectRequest.getTabId();
                final String portName = ExternalExtensionDataInstance.SPEED_TRACER_EXTERNAL_PORT + browserId
                        + "-" + tabId;

                // So we will now begin listening for connections on a dedicated
                // port name for this browser/tab combo.
                Chrome.getExtension().getOnConnectExternalEvent()
                        .addListener(new ConnectExternalEvent.Listener() {
                            public void onConnectExternal(Port port) {
                                if (portName.equals(port.getName())) {
                                    // Provision a DataInstance and a TabDescription.
                                    DataInstance dataInstance = ExternalExtensionDataInstance.create(port);
                                    TabDescription tabDescription = TabDescription.create(tabId,
                                            connectRequest.getTitle(), connectRequest.getUrl());

                                    // Now remember the DataInstance and TabDescription, and
                                    // open a Monitor.
                                    exListener.onTabMonitorStarted(browserId, tabDescription, dataInstance);
                                }
                            }
                        });

                // Send a response that tells the external extension what port
                // name to connect to.
                sendResponse.invoke(ExternalExtensionDataInstance.createResponse(portName));
            }
        }
    });
}

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