Examples with Callback com.codename1.util.Callback used on opensource projects

Example 21 with Callback

use of com.codename1.util.Callback in project CodenameOne by codenameone.

the class CodenameOneImplementation method downloadImageToStorage.

/**
 * Downloads an image to storage. This will *not* first check to see if the image is located in storage
 * already.  It will download and overwrite any existing image at the provided location.
 *
 * <p>Some platforms may override this method to use platform-level caching.  E.g. Javascript will use
 * the browser cache for downloading the image.</p>
 *
 * @param url The URL of the image to download.
 * @param fileName The storage key to be used to store the image.
 * @param onSuccess Callback on success.  Will be executed on EDT.
 * @param onFail Callback on failure.  Will be executed on EDT.
 */
public void downloadImageToStorage(String url, String fileName, SuccessCallback<Image> onSuccess, FailureCallback<Image> onFail) {
    ConnectionRequest cr = new ConnectionRequest();
    cr.setPost(false);
    cr.setFailSilently(true);
    cr.setReadResponseForErrors(false);
    cr.setDuplicateSupported(true);
    cr.setUrl(url);
    cr.downloadImageToStorage(fileName, onSuccess, onFail);
}

Example 22 with Callback

use of com.codename1.util.Callback in project CodenameOne by codenameone.

the class CodenameOneImplementation method registerPollingFallback.

/**
 * Registers a polling thread to simulate push notification
 */
protected static void registerPollingFallback() {
    if (pollingThreadRunning || callback == null) {
        return;
    }
    pollingThreadRunning = true;
    final long pushId = Preferences.get("push_id", (long) -1);
    if (pushId > -1) {
        new CodenameOneThread(new Runnable() {

            public void run() {
                String lastReq = Preferences.get("last_push_req", "0");
                while (pollingThreadRunning) {
                    try {
                        ConnectionRequest cr = new ConnectionRequest();
                        cr.setUrl(Display.getInstance().getProperty("cloudServerURL", "https://codename-one.appspot.com/") + "pollManualPush");
                        cr.setPost(false);
                        cr.setFailSilently(true);
                        cr.addArgument("i", "" + pushId);
                        cr.addArgument("last", lastReq);
                        NetworkManager.getInstance().addToQueueAndWait(cr);
                        if (cr.getResponseCode() != 200) {
                            callback.pushRegistrationError("Server registration error", 1);
                        } else {
                            DataInputStream di = new DataInputStream(new ByteArrayInputStream(cr.getResponseData()));
                            if (di.readBoolean()) {
                                byte type = di.readByte();
                                String message = di.readUTF();
                                lastReq = "" + di.readLong();
                                Preferences.set("last_push_req", lastReq);
                                callback.push(message);
                            }
                        }
                    } catch (IOException ex) {
                        Log.e(ex);
                    }
                    try {
                        synchronized (callback) {
                            callback.wait(pollingMillis);
                        }
                    } catch (Throwable t) {
                        Log.e(t);
                    }
                }
            }
        }, "Polling Thread").start();
    }
}

Example 23 with Callback

use of com.codename1.util.Callback in project CodenameOne by codenameone.

the class Ads method setAd.

/**
 * HTML ad received from the server
 * @param ad the ad to set
 */
public void setAd(String ad) {
    HTMLComponent html = new HTMLComponent(new AsyncDocumentRequestHandlerImpl() {

        protected ConnectionRequest createConnectionRequest(DocumentInfo docInfo, IOCallback callback, Object[] response) {
            ConnectionRequest req = super.createConnectionRequest(docInfo, callback, response);
            req.setFailSilently(true);
            req.addResponseCodeListener(new ActionListener() {

                public void actionPerformed(ActionEvent evt) {
                // do nothing, just make sure the html won't throw an error
                }
            });
            return req;
        }
    });
    html.setSupressExceptions(true);
    html.setHTMLCallback(this);
    html.setBodyText("<html><body><div align='center'>" + ad + "</div></body></html>");
    replace(getComponentAt(0), html, null);
    revalidate();
    html.setPageUIID("Container");
    html.getStyle().setBgTransparency(0);
}

Example 24 with Callback

use of com.codename1.util.Callback in project CodenameOne by codenameone.

the class FaceBookAccess method getUsersDetails.

/**
 * Gets users requested details ((this method uses the legacy rest api see http://developers.facebook.com/docs/reference/rest/))
 *
 * @param usersIds the users to query
 * @param fields which fields to query on the users see http://developers.facebook.com/docs/reference/rest/users.getInfo/
 * @param callback the result will call the callback with the result
 * to extrct the data preform the following:
 *  public void actionPerformed(ActionEvent evt) {
 *    Vector data = (Vector) ((NetworkEvent) evt).getMetaData();
 *    Vector users = (Vector) data.elementAt(0);
 * }
 */
public void getUsersDetails(String[] usersIds, String[] fields, final ActionListener callback) throws IOException {
    checkAuthentication();
    final FacebookRESTService con = new FacebookRESTService(token, "https://api.facebook.com/method/users.getInfo", false);
    String ids = usersIds[0];
    int ulen = usersIds.length;
    for (int i = 1; i < ulen; i++) {
        ids += "," + usersIds[i];
    }
    con.addArgumentNoEncoding("uids", ids);
    String fieldsStr = fields[0];
    int flen = fields.length;
    for (int i = 1; i < flen; i++) {
        fieldsStr += "," + fields[i];
    }
    con.addArgumentNoEncoding("fields", fieldsStr);
    con.addArgument("format", "json");
    con.addResponseListener(new ActionListener() {

        public void actionPerformed(ActionEvent evt) {
            if (!con.isAlive()) {
                return;
            }
            if (callback != null) {
                callback.actionPerformed(evt);
            }
        }
    });
    if (slider != null) {
        SliderBridge.bindProgress(con, slider);
    }
    for (int i = 0; i < responseCodeListeners.size(); i++) {
        con.addResponseCodeListener((ActionListener) responseCodeListeners.elementAt(i));
    }
    current = con;
    NetworkManager.getInstance().addToQueue(con);
}

Example 25 with Callback

use of com.codename1.util.Callback in project CodenameOne by codenameone.

the class FaceBookAccess method getUserNotifications.

/**
 * Gets the user notifications (this method uses the legacy rest api see http://developers.facebook.com/docs/reference/rest/)
 *
 * @param userId the user id
 * @param startTime Indicates the earliest time to return a notification.
 * This equates to the updated_time field in the notification FQL table. If not specified, this call returns all available notifications.
 * @param includeRead Indicates whether to include notifications that have already been read.
 * By default, notifications a user has read are not included.
 * @param notifications store notifications results into the given model,
 * each entry is an Hashtable Object contaning the Object data
 * @param callback the callback that should be updated when the data arrives
 */
public void getUserNotifications(String userId, String startTime, boolean includeRead, DefaultListModel notifications, final ActionListener callback) throws IOException {
    checkAuthentication();
    final FacebookRESTService con = new FacebookRESTService(token, "https://api.facebook.com/method/notifications.getList", false);
    con.addArgument("start_time", startTime);
    con.addArgument("include_read", new Boolean(includeRead).toString());
    con.addArgument("format", "json");
    con.setResponseDestination(notifications);
    con.addResponseListener(new ActionListener() {

        public void actionPerformed(ActionEvent evt) {
            if (!con.isAlive()) {
                return;
            }
            if (callback != null) {
                callback.actionPerformed(evt);
            }
        }
    });
    if (slider != null) {
        SliderBridge.bindProgress(con, slider);
    }
    for (int i = 0; i < responseCodeListeners.size(); i++) {
        con.addResponseCodeListener((ActionListener) responseCodeListeners.elementAt(i));
    }
    current = con;
    NetworkManager.getInstance().addToQueue(con);
}