1 #include <QNetworkAccessManager>

     2 #include <QNetworkRequest>

     3 #include <QNetworkReply>

     4 #include <QDebug>

     5 

     6 #include "databrowser.h"

     7 

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

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

    10 

    11 DataBrowser::DataBrowser(QWidget *parent) :

    12     QTextBrowser(parent)

    13 {

    14 

    15     manager = new QNetworkAccessManager(this);

    16 }

    17 

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

    19 {

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

    21         if(resources.contains(name))

    22         {

    23             return resources.take(name);

    24         }

    25         else

    26             if(!requestedResources.contains(name))

    27             {

    28                 requestedResources.insert(name);

    29 

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

    31                 newRequest.setAttribute(typeAttribute, type);

    32                 newRequest.setAttribute(urlAttribute, name);

    33 

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

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

    36             }

    37 

    38     return QVariant();

    39 }

    40 

    41 void DataBrowser::resourceDownloaded()

    42 {

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

    44 

    45     if(reply)

    46     {

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

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

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

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

    51     }

    52 }