1 /**

     2    This file is part of CWRT package **

     3 

     4    Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). **

     5 

     6    This program is free software: you can redistribute it and/or modify

     7    it under the terms of the GNU (Lesser) General Public License as 

     8    published by the Free Software Foundation, version 2.1 of the License. 

     9    This program is distributed in the hope that it will be useful, but

    10    WITHOUT ANY WARRANTY; without even the implied warranty of 

    11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 

    12    (Lesser) General Public License for more details. You should have 

    13    received a copy of the GNU (Lesser) General Public License along 

    14    with this program. If not, see <http://www.gnu.org/licenses/>.

    15 */

    16 

    17 #ifndef SEQUENTIALDOWNLOADMANAGER_H

    18 #define SEQUENTIALDOWNLOADMANAGER_H

    19 

    20 #include "dmcommon.h"

    21 #include "dmpimpl.h"

    22 #include "downloadevent.h"

    23 #include <QObject>

    24 #include <QQueue>

    25 

    26 // forward declarations

    27 class ClientDownload;

    28 class QNetworkReply; 

    29 class SequentialDownloadManagerPrivate;

    30 

    31 // class declaration

    32 class SequentialDownloadManager : public QObject

    33 {

    34     DM_DECLARE_PRIVATE(SequentialDownloadManager); // private implementation

    35 public:

    36     SequentialDownloadManager();

    37     virtual ~SequentialDownloadManager();

    38     

    39     // returns all the current downloads

    40     QList<Download *>& currentDownloads();

    41     // finds a download provided id if exists

    42     Download* findDownload(int dlId);

    43     // cancels all the downloads and removes from the list

    44     void removeAll();

    45     // cancels and removes the download from list

    46     void removeOne(Download *dl);

    47     // pauses all the downloads which are in progress

    48     void pauseAll();

    49     // resumes all the downloads which are paused

    50     void resumeAll();

    51     // Adds to the download list

    52     void addToSequentialDownload(Download* dl);

    53 

    54 private:

    55     // removes adownload from created download list to download queue for downloading

    56     void addToDownloadQueue(Download* dl);

    57     // adds downloads to completed list of downloads

    58     void addToCompletedList(Download* dl);

    59     // processes a download when download start fired

    60     void process(int dlId);

    61     // event handler

    62     bool event(QEvent *event);

    63     // starts the next download in downloadQueue

    64     void startNext();

    65     // pauses the download if it is the first one in the queue

    66     void pauseDownload(int dlId);

    67     // resumes the download if it is the first one in the queue

    68     void resumeDownload(int dlId);

    69     // cancels the download if it is the first one in the queue

    70     void cancelDownload(int dlId);

    71 

    72     friend class ClientDownload;

    73 };

    74 

    75 #endif