Example file download and open in Cordova inAppBrowser

example-download-and-open.js

window.requestFileSystem(LocalFileSystem.TEMPORARY, 0, gotFS, fail);

function fail(error) {
    console.log(error)
}

function gotFS(fileSystem) {
   fileSystem.root.getDirectory("data", {create: true, exclusive: false}, gotDir, fail);
}

function gotDir(dirEntry) {
    dirEntry.getFile("unixtoolbox.pdf", {create: true, exclusive: false}, gotFile, fail);
}

function gotFile(fileEntry) {
    // Start FileTransfer here...
    var fileTransfer = new FileTransfer();
    var uri = encodeURI("http://cb.vu/unixtoolbox.pdf");

    fileTransfer.download(
        uri,
        fileEntry.fullPath,
        function(entry) {
            //window.plugins.webintent.startActivity({
            //    action: WebIntent.ACTION_VIEW,
            //    url: encodeURI(entry.fullPath),
            //}, function () {}, function (error) {
            //   console.log(error);
            //});
            window.open(encodeURI(entry.fullPath),"_blank","location=no,enableViewportScale=yes")
            console.log("download complete: " + entry.fullPath);
        },
        function(error) {
            console.log("download error source " + error.source);
            console.log("download error target " + error.target);
            console.log("upload error code" + error.code);
        }
    );
}

what exactly the plugins do we need while using this code ? @devgeeks