29#include <QRegularExpression>
49 , mBaseUrl( feedUrl.toString() )
52 , mFeedKey( keyForFeed( mBaseUrl ) )
57 QUrlQuery query( feedUrl );
64 if ( feedLanguage.isEmpty() )
68 if ( !feedLanguage.isEmpty() && feedLanguage != QLatin1String(
"C" ) )
69 query.addQueryItem( QStringLiteral(
"lang" ), feedLanguage.mid( 0, 2 ) );
77 if ( feedUrl.isLocalFile() )
79 query.addQueryItem( QStringLiteral(
"lat" ), QString::number(
static_cast< int >( feedLat ) ) );
80 query.addQueryItem( QStringLiteral(
"lon" ), QString::number(
static_cast< int >( feedLong ) ) );
90 if ( feedUrl.isLocalFile() )
92 if ( !query.toString().isEmpty() )
93 mFeedUrl = QUrl( mFeedUrl.toString() +
'_' + query.toString() );
97 mFeedUrl.setQuery( query );
109 const int beforeSize = mEntries.size();
110 mEntries.erase( std::remove_if( mEntries.begin(), mEntries.end(),
111 [key, &dismissed](
const Entry & entry )
113 if ( entry.key == key )
119 } ), mEntries.end() );
120 if ( beforeSize == mEntries.size() )
123 sTreeNewsFeedEntries->deleteItem( QString::number( key ), {mFeedKey} );
126 if ( !dismissed.imageUrl.isEmpty() )
129 const QString imagePath = QStringLiteral(
"%1/%2.png" ).arg( previewDir ).arg( key );
130 if ( QFile::exists( imagePath ) )
132 QFile::remove( imagePath );
136 if ( !mBlockSignals )
137 emit entryDismissed( dismissed );
142 const QList< QgsNewsFeedParser::Entry >
entries = mEntries;
156 QNetworkRequest req( mFeedUrl );
159 mFetchStartTime = QDateTime::currentDateTimeUtc().toSecsSinceEpoch();
166 QNetworkReply *reply = task->
reply();
173 if ( reply->error() != QNetworkReply::NoError )
175 QgsMessageLog::logMessage( tr(
"News feed request failed [error: %1]" ).arg( reply->errorString() ) );
180 QMetaObject::invokeMethod(
this,
"onFetch", Qt::QueuedConnection, Q_ARG( QString, task->
contentAsString() ) );
186void QgsNewsFeedParser::onFetch(
const QString &content )
192 const QVariantList
entries = json.toList();
193 QList< QgsNewsFeedParser::Entry > fetchedEntries;
194 fetchedEntries.reserve(
entries.size() );
195 for (
const QVariant &e :
entries )
198 const QVariantMap entryMap = e.toMap();
199 incomingEntry.key = entryMap.value( QStringLiteral(
"pk" ) ).toInt();
200 incomingEntry.title = entryMap.value( QStringLiteral(
"title" ) ).toString();
201 incomingEntry.imageUrl = entryMap.value( QStringLiteral(
"image" ) ).toString();
202 incomingEntry.content = entryMap.value( QStringLiteral(
"content" ) ).toString();
203 incomingEntry.link = entryMap.value( QStringLiteral(
"url" ) ).toString();
204 incomingEntry.sticky = entryMap.value( QStringLiteral(
"sticky" ) ).toBool();
205 bool hasExpiry =
false;
206 const qlonglong expiry = entryMap.value( QStringLiteral(
"publish_to" ) ).toLongLong( &hasExpiry );
208 incomingEntry.expiry.setSecsSinceEpoch( expiry );
210 fetchedEntries.append( incomingEntry );
213 const auto entryIter { std::find_if( mEntries.begin(), mEntries.end(), [incomingEntry](
const QgsNewsFeedParser::Entry & candidate )
215 return candidate.key == incomingEntry.key;
217 const bool entryExists { entryIter != mEntries.end() };
220 if ( hasExpiry && expiry < mFetchStartTime )
225 else if ( entryExists )
227 const bool imageNeedsUpdate = ( entryIter->imageUrl != incomingEntry.imageUrl );
229 if ( imageNeedsUpdate && ! entryIter->imageUrl.isEmpty() )
232 const QString imagePath = QStringLiteral(
"%1/%2.png" ).arg( previewDir ).arg( entryIter->key );
233 if ( QFile::exists( imagePath ) )
235 QFile::remove( imagePath );
238 *entryIter = incomingEntry;
239 if ( imageNeedsUpdate && ! incomingEntry.imageUrl.isEmpty() )
240 fetchImageForEntry( incomingEntry );
243 storeEntryInSettings( incomingEntry );
247 else if ( !hasExpiry || expiry >= mFetchStartTime )
249 if ( !incomingEntry.imageUrl.isEmpty() )
250 fetchImageForEntry( incomingEntry );
252 mEntries.append( incomingEntry );
253 storeEntryInSettings( incomingEntry );
259 emit
fetched( fetchedEntries );
262void QgsNewsFeedParser::readStoredEntries()
265 std::sort( existing.begin(), existing.end(), [](
const QString & a,
const QString & b )
267 return a.toInt() < b.toInt();
269 mEntries.reserve( existing.size() );
270 for (
const QString &entry : existing )
272 const Entry e = readEntryFromSettings( entry.toInt() );
273 if ( !e.expiry.isValid() || e.expiry > QDateTime::currentDateTime() )
274 mEntries.append( e );
278 mBlockSignals =
true;
280 mBlockSignals =
false;
295 if ( !entry.imageUrl.isEmpty() )
298 const QString imagePath = QStringLiteral(
"%1/%2.png" ).arg( previewDir ).arg( entry.key );
299 if ( QFile::exists( imagePath ) )
301 const QImage img( imagePath );
302 entry.image = QPixmap::fromImage( img );
306 fetchImageForEntry( entry );
319 if ( entry.
expiry.isValid() )
329 const auto findIter = std::find_if( mEntries.begin(), mEntries.end(), [entry](
const QgsNewsFeedParser::Entry & candidate )
331 return candidate.key == entry.key;
333 if ( findIter != mEntries.end() )
335 const int entryIndex =
static_cast< int >( std::distance( mEntries.begin(), findIter ) );
337 QImage img = QImage::fromData( fetcher->
reply()->readAll() );
339 QSize size = img.size();
341 if ( size.width() > 250 )
343 size.setHeight(
static_cast< int >( size.height() *
static_cast< double >( 250 ) / size.width() ) );
344 size.setWidth( 250 );
347 if ( size.height() > 177 )
349 size.setWidth(
static_cast< int >( size.width() *
static_cast< double >( 177 ) / size.height() ) );
350 size.setHeight( 177 );
354 img = img.scaled( size, Qt::IgnoreAspectRatio, Qt::SmoothTransformation );
357 QImage previewImage( size, QImage::Format_ARGB32 );
358 previewImage.fill( Qt::transparent );
359 QPainter previewPainter( &previewImage );
360 previewPainter.setRenderHint( QPainter::Antialiasing,
true );
361 previewPainter.setRenderHint( QPainter::SmoothPixmapTransform,
true );
362 previewPainter.setPen( Qt::NoPen );
363 previewPainter.setBrush( Qt::black );
364 previewPainter.drawRoundedRect( 0, 0, size.width(), size.height(), 8, 8 );
365 previewPainter.setCompositionMode( QPainter::CompositionMode_SourceIn );
366 previewPainter.drawImage( 0, 0, img );
367 previewPainter.end();
371 QDir().mkdir( previewDir );
372 const QString imagePath = QStringLiteral(
"%1/%2.png" ).arg( previewDir ).arg( entry.
key );
373 previewImage.save( imagePath );
375 mEntries[ entryIndex ].image = QPixmap::fromImage( previewImage );
378 fetcher->deleteLater();
385 static const QRegularExpression sRegexp( QStringLiteral(
"[^a-zA-Z0-9]" ) );
386 QString res = baseUrl;
387 res = res.replace( sRegexp, QString() );
static const QgsSettingsEntryString * settingsLocaleUserLocale
Settings entry locale user locale.
static QString qgisSettingsDirPath()
Returns the path to the settings directory in user's home dir.
static QgsTaskManager * taskManager()
Returns the application's task manager, used for managing application wide background task handling.
static QVariant parseJson(const std::string &jsonString)
Converts JSON jsonString to a QVariant, in case of parsing error an invalid QVariant is returned and ...
Handles HTTP network content fetching in a background task.
QString contentAsString() const
Returns the fetched content as a string.
void fetched()
Emitted when the network content has been fetched, regardless of whether the fetch was successful or ...
QNetworkReply * reply()
Returns the network reply.
HTTP network content fetcher.
void finished()
Emitted when content has loaded.
QNetworkReply * reply()
Returns a reference to the network reply.
void fetchContent(const QUrl &url, const QString &authcfg=QString())
Fetches content from a remote URL and handles redirects.
Represents a single entry from a news feed.
QString content
HTML content of news entry.
bool sticky
true if entry is "sticky" and should always be shown at the top
QUrl link
Optional URL link for entry.
QString imageUrl
Optional URL for image associated with entry.
QDateTime expiry
Optional auto-expiry time for entry.
int key
Unique entry identifier.
QString title
Entry title.
static QgsSettingsTreeNamedListNode * sTreeNewsFeedEntries
static const QgsSettingsEntryString * settingsFeedEntryTitle
void dismissEntry(int key)
Dismisses an entry with matching key.
static const QgsSettingsEntryString * settingsFeedEntryLink
void fetch()
Fetches new entries from the feed's URL.
void fetched(const QList< QgsNewsFeedParser::Entry > &entries)
Emitted when entries have been fetched from the feed.
static const QgsSettingsEntryString * settingsFeedEntryImageUrl
static const QgsSettingsEntryDouble * settingsFeedLatitude
QString authcfg() const
Returns the authentication configuration for the parser.
static const QgsSettingsEntryInteger64 * settingsFeedLastFetchTime
QgsNewsFeedParser(const QUrl &feedUrl, const QString &authcfg=QString(), QObject *parent=nullptr)
Constructor for QgsNewsFeedParser, parsing the specified feedUrl.
static const QgsSettingsEntryBool * settingsFeedEntrySticky
void dismissAll()
Dismisses all current news items.
static const QgsSettingsEntryDouble * settingsFeedLongitude
static const QgsSettingsEntryString * settingsFeedLanguage
static const QgsSettingsEntryString * settingsFeedEntryContent
void entryUpdated(const QgsNewsFeedParser::Entry &entry)
Emitted whenever an existing entry is available from the feed (as a result of a call to fetch()).
static const QgsSettingsEntryVariant * settingsFeedEntryExpiry
static QString keyForFeed(const QString &baseUrl)
Returns the settings key used for a feed with the given baseUrl.
void entryAdded(const QgsNewsFeedParser::Entry &entry)
Emitted whenever a new entry is available from the feed (as a result of a call to fetch()).
void imageFetched(int key, const QPixmap &pixmap)
Emitted when the image attached to the entry with the specified key has been fetched and is now avail...
QList< QgsNewsFeedParser::Entry > entries() const
Returns a list of existing entries in the feed.
T valueWithDefaultOverride(const T &defaultValueOverride, const QString &dynamicKeyPart=QString()) const
Returns the settings value with a defaultValueOverride and with an optional dynamicKeyPart.
T value(const QString &dynamicKeyPart=QString()) const
Returns settings value.
bool setValue(const T &value, const QString &dynamicKeyPart=QString()) const
Set settings value.
bool exists(const QString &dynamicKeyPart=QString()) const
Returns true if the settings is contained in the underlying QSettings.
A boolean settings entry.
A 64 bits integer (long long) settings entry.
A variant settings entry.
void deleteItem(const QString &item, const QStringList &parentsNamedItems=QStringList())
Deletes a named item from the named list node.
QStringList items(const QStringList &parentsNamedItems=QStringList()) const
Returns the list of items.
long addTask(QgsTask *task, int priority=0)
Adds a task to the manager.
@ CanCancel
Task can be canceled.
@ CancelWithoutPrompt
Task can be canceled without any users prompts, e.g. when closing a project or QGIS.
@ Silent
Don't show task updates (such as completion/failure messages) as operating-system level notifications...
void setDescription(const QString &description)
Sets the task's description.
QString qgsDoubleToString(double a, int precision=17)
Returns a string representation of a double.
#define QgsSetRequestInitiatorClass(request, _class)