BarcodeInvoker.hpp Example File

    /* Copyright (c) 2012, 2013  BlackBerry Limited.
     *
     * Licensed under the Apache License, Version 2.0 (the "License");
     * you may not use this file except in compliance with the License.
     * You may obtain a copy of the License at
     *
     * http://www.apache.org/licenses/LICENSE-2.0
     *
     * Unless required by applicable law or agreed to in writing, software
     * distributed under the License is distributed on an "AS IS" BASIS,
     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     * See the License for the specific language governing permissions and
     * limitations under the License.
     */
    #ifndef BARCODEINVOKER_HPP
    #define BARCODEINVOKER_HPP

    #include <QObject>

    namespace bb {
    namespace system {
    class CardDoneMessage;
    }
    }

    /*!
     * @brief Application pane object
     *
     * Use this object to request barcodescanner card and retrieve data sent by the card
     * upon finishing request.
     */
    class BarcodeInvoker: public QObject
    {
        Q_OBJECT

        // The barcode data
        Q_PROPERTY(QString barcode READ barcode NOTIFY barcodeChanged)

    public:
        BarcodeInvoker(QObject* parent = 0);

    public Q_SLOTS:
        /**
         * Send the request to the barcodescanner card via invoke manager.
         */
        void onInvokeButtonClicked() const;

    Q_SIGNALS:
        // The change notification signal for the property
        void barcodeChanged();

    private Q_SLOTS:
        /**
         * Retrieves the message upon receiving car done signal from invoke manager.
         */
        void onChildCardDone(const bb::system::CardDoneMessage &message);

    private:
        QString barcode() const;
        void setBarcode(const QString &barcode);

        QString m_barcode;
    };

    #endif