1 #include <QNetworkAccessManager>

     2 #include <QNetworkRequest>

     3 #include <QNetworkReply>

     4 #include <QDebug>

     5 #include <QUrl>

     6 

     7 #include "databrowser.h"

     8 

     9 const QNetworkRequest::Attribute typeAttribute = (QNetworkRequest::Attribute)(QNetworkRequest::User + 1);

    10 const QNetworkRequest::Attribute urlAttribute = (QNetworkRequest::Attribute)(QNetworkRequest::User + 2);

    11 

    12 DataBrowser::DataBrowser(QWidget *parent) :

    13     QTextBrowser(parent)

    14 {

    15 

    16     manager = new QNetworkAccessManager(this);

    17 }

    18 

    19 QVariant DataBrowser::loadResource(int type, const QUrl & name)

    20 {

    21     if(type == QTextDocument::ImageResource || type == QTextDocument::StyleSheetResource)

    22     {

    23         if(resources.contains(name.toString()))

    24         {

    25             return resources.take(name.toString());

    26         }

    27         else

    28             if(!requestedResources.contains(name.toString()))

    29             {

    30                 qDebug() << "Requesting resource" << name.toString();

    31                 requestedResources.insert(name.toString());

    32 

    33                 QNetworkRequest newRequest(QUrl("http://www.hedgewars.org" + name.toString()));

    34                 newRequest.setAttribute(typeAttribute, type);

    35                 newRequest.setAttribute(urlAttribute, name);

    36 

    37                 QNetworkReply *reply = manager->get(newRequest);

    38                 connect(reply, SIGNAL(finished()), this, SLOT(resourceDownloaded()));

    39             }

    40     }

    41 

    42     return QVariant();

    43 }

    44 

    45 void DataBrowser::resourceDownloaded()

    46 {

    47     QNetworkReply * reply = qobject_cast<QNetworkReply *>(sender());

    48 

    49     if(reply)

    50     {

    51         int type = reply->request().attribute(typeAttribute).toInt();

    52         QUrl url = reply->request().attribute(urlAttribute).toUrl();

    53         resources.insert(url.toString(), reply->readAll());

    54         document()->addResource(type, reply->request().url(), QVariant());

    55         update();

    56     }

    57 }