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#include <QMainWindow>
#include <QTextBrowser>
#include <QTextStream>
#include <QIODevice>
#include <helpers.h>
#include <iprovider.h>
#include "packagedescriptionplugin.h"
#include "ipackagedb.h"
#include "iaptmediator.h"
#include "packagenotfoundexception.h"
namespace NPlugin
{
const QString PackageDescriptionPlugin::PLUGIN_NAME = "PackageDescriptionPlugin";
const QString PackageDescriptionPlugin::_emptyString;
/** Converts the description to html code according to Debian Policy Section 5.6.13.
*
* This function should be static at one point.
*/
QString descriptionToHtml(const QString& description)
{
QStringList lines = description.split("\n");
bool inParagraph = false;
QString result;
for (QStringList::iterator it = lines.begin(); it != lines.end(); ++it)
{
// skip first line because it is the shortDescription
if (it == lines.begin()) {
continue;
}
QString line = *it;
if (line.startsWith(" ")) // a verbatim line
{
QString line = toHtml(*it, true);
if (inParagraph)
{
result.append("</p>");
result.append("<br>"); // work around QT bug in QTextBrowser which puts a
// line after a paragraph on the same line as the paragraph
inParagraph = false;
}
result.append(line).append("<br>");
}
else if (line.startsWith(" .")) // an empty line
{
QString line = toHtml(*it);
if (inParagraph)
{
result.append("</p>");
inParagraph = false;
}
else
result.append("<br>");
}
else
{
QString line = toHtml(*it);
if (!inParagraph)
{
result.append("<p>");
inParagraph = true;
}
result.append(line);
}
}
if (inParagraph)
result.append("</p>");
return result;
}
/**
* Constructors/Destructors
*/
PackageDescriptionPlugin::PackageDescriptionPlugin(NApt::IPackageDB* pPackageDB, IAptMediator* pMediator) :
_pPackageDB(pPackageDB),
_pMediator(pMediator)
{
_pDescriptionView = 0;
_pProvider = 0;
}
PackageDescriptionPlugin::~PackageDescriptionPlugin()
{
delete _pDescriptionView;
}
/////////////////////////////////////////////////////
// Plugin Interface
/////////////////////////////////////////////////////
void PackageDescriptionPlugin::init(IProvider* pProvider)
{
_pProvider = pProvider;
QMainWindow* pWindow = pProvider->mainWindow();
_pDescriptionView = new QTextBrowser(pWindow);
_pDescriptionView->setObjectName("DescriptionView");
}
/////////////////////////////////////////////////////
// InformationPlugin Interface
/////////////////////////////////////////////////////
QWidget* PackageDescriptionPlugin::informationWidget() const
{
return _pDescriptionView;
}
QString PackageDescriptionPlugin::informationWidgetTitle() const
{
return tr("Description");
}
void PackageDescriptionPlugin::updateInformationWidget(const string& package)
{
QString text="";
try
{
auto pkg = _pPackageDB->getPackageDetails(package);
if (!pkg.longDescription().isEmpty())
{
QString description = pkg.longDescription();
description = descriptionToHtml(description);
QStringList patterns = _pMediator->searchPatterns();
for (QStringList::const_iterator it = patterns.begin(); it != patterns.end(); ++it )
{
int index = description.indexOf(*it, 0, Qt::CaseInsensitive);
while ( index != -1 )
{
description.insert(index + (*it).length(), "</font>"); // insert the last part first
description.insert(index, "<font color=\"#ff0000\">");
// point behind the inserted string
index += (*it).length() + 29; // 29 == strlen("<font color=\"#ffff00\"></font>")
index = description.indexOf(*it, index, Qt::CaseInsensitive);
}
}
text = description;
}
}
catch(PackageNotFoundException& e) // the package information could not be retrieved
{
text = tr("<h3>Package not found</h3>"
"<p>Could not find a valid description for <b>") + toQString(package) +
tr("</b>.<br>") + // tr required to add something afterwards e.g. for German
tr("This could mean either that you have selected a virtual package or that the package description "
" was not found for an unknown reason.</p>");
// "The original error message was:<br>" + QString(e.desc().c_str())
// );
}
_pDescriptionView->setHtml(text);
}
void PackageDescriptionPlugin::clearInformationWidget()
{
_pDescriptionView->clear();
}
QString PackageDescriptionPlugin::informationText(const string& package)
{
auto& pkg = _pPackageDB->getPackageRecord(package);
auto details = _pPackageDB->getPackageDetails(package);
QString text;
QTextStream os(&text, QIODevice::WriteOnly);
{ // fill the details string
if (!pkg.installedVersion().isEmpty())
os << tr("<b>Installed Version</b>: ") << pkg.installedVersion() << "<br>";
if (!pkg.availableVersion().isEmpty())
os << tr("<b>Available Version</b>: ") << pkg.availableVersion() << "<br>";
else
os << tr("<b>Available Version</b>: not available<br>");
if (!details.essential().isEmpty())
os << tr("<b>Essential</b>: ") << toHtml(details.essential()) << "<br>";
/* else
os << "<b>Essential</b>: not available<br>";*/
if (!details.priority().isEmpty())
os << tr("<b>Priority</b>: ") << toHtml(details.priority()) << "<br>";
/* else
os << "<b>Priority</b>: not available<br>";*/
if (!details.section().isEmpty())
os << tr("<b>Section</b>: ") << toHtml(details.section()) << "<br>";
else
os << tr("<b>Section</b>: not available<br>");
if (!details.installedSize().isEmpty())
os << tr("<b>Installed Size</b>: ") << details.installedSize() << "<br>";
else
os << tr("<b>Installed Size</b>: not available<br>");
if (!details.maintainer().isEmpty())
os << tr("<b>Maintainer</b>: ") << toHtml(details.maintainer()) << "<br>";
else
os << tr("<b>Maintainer</b>: not available<br>");
if (!pkg.architecture().isEmpty())
os << tr("<b>Architecture</b>: ") << pkg.architecture() << "<br>";
else
os << tr("<b>Architecture</b>: not available<br>");
if (!details.source().isEmpty())
os << tr("<b>Source</b>: ") << details.source() << "<br>";
if (!details.replaces().isEmpty())
{
QString entry = toHtml(details.replaces());
NApt::IPackageDetails::BorderList borderList = details.getPackageList(entry);
os << tr("<b>Replaces</b>: ") << createLinks(borderList, entry) << "<br>";
}
if (!details.provides().isEmpty())
{
QString entry = toHtml(details.provides());
NApt::IPackageDetails::BorderList borderList = details.getPackageList(entry);
os << tr("<b>Provides</b>: ") << createLinks(borderList, entry) << "<br>";
}
if (!details.preDepends().isEmpty())
{
QString entry = toHtml(details.preDepends());
NApt::IPackageDetails::BorderList borderList = details.getPackageList(entry);
os << tr("<b>Pre-Depends</b>: ") << createLinks(borderList, entry) << "<br>";
}
if (!details.depends().isEmpty())
{
QString entry = toHtml(details.depends());
NApt::IPackageDetails::BorderList borderList = details.getPackageList(entry);
os << tr("<b>Depends</b>: ") << createLinks(borderList, entry) << "<br>";
}
if (!details.recommends().isEmpty())
{
QString entry = toHtml(details.recommends());
NApt::IPackageDetails::BorderList borderList = details.getPackageList(entry);
os << tr("<b>Recommends:</b> ") << createLinks(borderList, entry) << "<br>";
}
if (!details.suggests().isEmpty())
{
QString entry = toHtml(details.suggests());
NApt::IPackageDetails::BorderList borderList = details.getPackageList(entry);
os << tr("<b>Suggests:</b> ") << createLinks(borderList, entry) << "<br>";
}
if (!details.conflicts().isEmpty())
{
QString entry = toHtml(details.conflicts());
NApt::IPackageDetails::BorderList borderList = details.getPackageList(entry);
os << tr("<b>Conflicts</b>: ") << createLinks(borderList, entry) << "<br>";
}
if (!details.filename().isEmpty())
os << tr("<b>Filename</b>: ") << details.filename() << "<br>\n";
else
os << tr("<b>Filename</b>: not available<br>\n");
if (!details.size().isEmpty())
os << tr("<b>Size</b>: ") << details.size() << "<br>";
else
os << tr("<b>Size</b>: not available<br>");
if (!details.md5sum().isEmpty())
os << tr("<b>MD5sum</b>: ") << details.md5sum() << "<br>";
else
os << tr("<b>MD5sum</b>: not available<br>");
if (!details.conffiles().isEmpty())
os << tr("<b>Conffiles</b>: ") << toHtml(details.conffiles()) << "<br>";
if (!details.homepage().isEmpty())
os << tr("<b>Homepage</b>: <a HREF='") << details.homepage()
<< "'>" << details.homepage() << "</a><br>";
}
return text;
}
/////////////////////////////////////////////////////
// ShortInformationPlugin Interface
/////////////////////////////////////////////////////
const QString PackageDescriptionPlugin::shortInformationText(const string& package)
{
try
{
return _pPackageDB->getShortDescription(package);
}
catch (const PackageNotFoundException& e)
{
return _emptyString;
}
}
/////////////////////////////////////////////////////
// Helper Methods
/////////////////////////////////////////////////////
QString PackageDescriptionPlugin::createLinks( NApt::IPackageDetails::BorderList packages, const QString & s)
{
typedef NApt::IPackageDetails::BorderList BL;
QString result = s;
// iterate from behind to not destroy the order
for (BL::reverse_iterator it = packages.rbegin(); it!=packages.rend(); ++it)
{
QString package = result.mid(it->first, it->second - it->first);
const set<string>& allPackages = _pProvider->packages();
if (allPackages.find(toString(package)) != allPackages.end())
{
result.insert(it->second,"</a>"); // insert behind the package name
result.insert(it->first,"<a HREF=\"package:"+package+"\">"); // insert before the package name
}
}
return result;
}
} // namespace NPlugin
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