Example usage for com.google.gwt.gears.client Factory hasPermission

Introduction

In this page you can find the example usage for com.google.gwt.gears.client Factory hasPermission.

Prototype

public native boolean hasPermission() ;

Source Link

Document

Returns true if the site already has permission to use Gears.

Usage

From source file:de.lilawelt.zmachine.client.storage.GearsAdapterReal.java

License:Open Source License

public boolean Initialize() throws StorageException {
    if (initialized)
        return true;

    Factory f = Factory.getInstance();
    if (f == null)
        throw new StorageException("Gears could not be initialized");

    if ((!f.hasPermission()) && (!f.getPermission()))
        throw new StorageException("Sorry, this site may not access your gears installation");

    Log.debug("Trying gears init...");

    // Create the database if it doesn't exist.
    try {//from   w  ww. j  ava  2  s  .  c o m
        db = f.createDatabase();
        db.open("textadventure-saves");
        // The 'int' type will store up to 8 byte ints depending on the magnitude of the 
        // value added.
        db.execute(
                "create table if not exists saves (savename text, gameuid text, savedate date, savedata blob)");
    } catch (GearsException e) {
        throw new StorageException(
                "Sorry, an error was encountered while initializing gears: " + e.getMessage());
    }

    Log.debug("Dine with gears init");

    initialized = true;
    return true;
}

---

From source file:org.sigmah.client.offline.sigmah.OnlineMode.java

License:Open Source License

/**
 * Verify if the usage of Google Gears has been approved by the user.<br>
 * If the permission hasn't been granted yet, this method will ask for
 * permission if <code>askForPermission</code> is true.<br>
 * <br>/*from w w w.j av a  2  s .  co  m*/
 * Also, this method creates the database
 * @param askForPermission <code>true</code> to ask for permission to use
 * Google Gears (only if needed), <code>false</code> otherwise.
 */
private void checkPermission(boolean askForPermission) {
    final Factory factory = Factory.getInstance();

    if (factory != null && !databaseCheckIsDone) {

        if (!factory.hasPermission() && askForPermission)
            factory.getPermission("Sigmah", "desktopicons/48x48.png",
                    I18N.CONSTANTS.sigmahOfflineDescription());

        if (factory.hasPermission()) {
            localDatabase = factory.createDatabase();

            // Verifying the existence of the "status" table
            localDatabase.open(LOCAL_DATABASE_NAME);
            try {
                localDatabase.execute("SELECT online FROM status WHERE id = 1");

            } catch (DatabaseException ex) {
                // Most likely, the database doesn't exists.

                // Creating the database
                createStatusTable();

            } finally {
                try {
                    localDatabase.close();
                } catch (DatabaseException ex) {
                    Log.debug("Database closing error.", ex);
                }
            }

            databaseCheckIsDone = true;
        }
    }
}

---