www/index.js
function(fileUrl, dirUrl, callback, progressCallback) {
        var win = function(result) {
            if (result && result.progress) {
                if (progressCallback) {
                    progressCallback(result);
                }
            } else if (callback) {
                callback(0);
            }
        };
        var fail = function(result) {
            if (callback) {
                callback(-1);
            }
        };
        exec(win, fail, 'Zip', 'unzip', [fileUrl, dirUrl]);
    }
function(fileUrl, dirUrl, callback, progressCallback) {
        var win = function(result) {
            if (result && result.progress) {
                if (progressCallback) {
                    progressCallback(result);
                }
            } else if (callback) {
                callback(0);
            }
        };
        var fail = function(result) {
            if (callback) {
                callback(-1);
            }
        };
        exec(win, fail, 'Zip', 'unzip', [fileUrl, dirUrl]);
    }
Unzip

This call is to replicate Zip::unzip plugin