30#include <QRegularExpression>
50 , mBaseUrl( feedUrl.toString() )
53 , mFeedKey( keyForFeed( mBaseUrl ) )
58 QUrlQuery query( feedUrl );
65 if ( feedLanguage.isEmpty() )
69 if ( !feedLanguage.isEmpty() && feedLanguage != QLatin1String(
"C" ) )
70 query.addQueryItem( QStringLiteral(
"lang" ), feedLanguage.mid( 0, 2 ) );
78 if ( feedUrl.isLocalFile() )
80 query.addQueryItem( QStringLiteral(
"lat" ), QString::number(
static_cast< int >( feedLat ) ) );
81 query.addQueryItem( QStringLiteral(
"lon" ), QString::number(
static_cast< int >( feedLong ) ) );
91 if ( feedUrl.isLocalFile() )
93 if ( !query.toString().isEmpty() )
94 mFeedUrl = QUrl( mFeedUrl.toString() +
'_' + query.toString() );
98 mFeedUrl.setQuery( query );
110 const int beforeSize = mEntries.size();
111 mEntries.erase( std::remove_if( mEntries.begin(), mEntries.end(),
112 [key, &dismissed](
const Entry & entry )
114 if ( entry.key == key )
120 } ), mEntries.end() );
121 if ( beforeSize == mEntries.size() )
124 sTreeNewsFeedEntries->deleteItem( QString::number( key ), {mFeedKey} );
127 if ( !dismissed.imageUrl.isEmpty() )
130 const QString imagePath = QStringLiteral(
"%1/%2.png" ).arg( previewDir ).arg( key );
131 if ( QFile::exists( imagePath ) )
133 QFile::remove( imagePath );
137 if ( !mBlockSignals )
138 emit entryDismissed( dismissed );
143 const QList< QgsNewsFeedParser::Entry >
entries = mEntries;
157 QNetworkRequest req( mFeedUrl );
160 mFetchStartTime = QDateTime::currentDateTimeUtc().toSecsSinceEpoch();
167 QNetworkReply *reply = task->
reply();
174 if ( reply->error() != QNetworkReply::NoError )
176 QgsMessageLog::logMessage( tr(
"News feed request failed [error: %1]" ).arg( reply->errorString() ) );
181 QMetaObject::invokeMethod(
this,
"onFetch", Qt::QueuedConnection, Q_ARG( QString, task->
contentAsString() ) );
187void QgsNewsFeedParser::onFetch(
const QString &content )
193 const QVariantList
entries = json.toList();
194 QList< QgsNewsFeedParser::Entry > fetchedEntries;
195 fetchedEntries.reserve(
entries.size() );
196 for (
const QVariant &e :
entries )
199 const QVariantMap entryMap = e.toMap();
200 incomingEntry.key = entryMap.value( QStringLiteral(
"pk" ) ).toInt();
201 incomingEntry.title = entryMap.value( QStringLiteral(
"title" ) ).toString();
202 incomingEntry.imageUrl = entryMap.value( QStringLiteral(
"image" ) ).toString();
203 incomingEntry.content = entryMap.value( QStringLiteral(
"content" ) ).toString();
204 incomingEntry.link = entryMap.value( QStringLiteral(
"url" ) ).toString();
205 incomingEntry.sticky = entryMap.value( QStringLiteral(
"sticky" ) ).toBool();
206 bool hasExpiry =
false;
207 const qlonglong expiry = entryMap.value( QStringLiteral(
"publish_to" ) ).toLongLong( &hasExpiry );
209 incomingEntry.expiry.setSecsSinceEpoch( expiry );
211 fetchedEntries.append( incomingEntry );
214 const auto entryIter { std::find_if( mEntries.begin(), mEntries.end(), [incomingEntry](
const QgsNewsFeedParser::Entry & candidate )
216 return candidate.key == incomingEntry.key;
218 const bool entryExists { entryIter != mEntries.end() };
221 if ( hasExpiry && expiry < mFetchStartTime )
226 else if ( entryExists )
228 const bool imageNeedsUpdate = ( entryIter->imageUrl != incomingEntry.imageUrl );
230 if ( imageNeedsUpdate && ! entryIter->imageUrl.isEmpty() )
233 const QString imagePath = QStringLiteral(
"%1/%2.png" ).arg( previewDir ).arg( entryIter->key );
234 if ( QFile::exists( imagePath ) )
236 QFile::remove( imagePath );
239 *entryIter = incomingEntry;
240 if ( imageNeedsUpdate && ! incomingEntry.imageUrl.isEmpty() )
241 fetchImageForEntry( incomingEntry );
244 storeEntryInSettings( incomingEntry );
248 else if ( !hasExpiry || expiry >= mFetchStartTime )
250 if ( !incomingEntry.imageUrl.isEmpty() )
251 fetchImageForEntry( incomingEntry );
253 mEntries.append( incomingEntry );
254 storeEntryInSettings( incomingEntry );
260 emit
fetched( fetchedEntries );
263void QgsNewsFeedParser::readStoredEntries()
266 std::sort( existing.begin(), existing.end(), [](
const QString & a,
const QString & b )
268 return a.toInt() < b.toInt();
270 mEntries.reserve( existing.size() );
271 for (
const QString &entry : existing )
273 const Entry e = readEntryFromSettings( entry.toInt() );
274 if ( !e.expiry.isValid() || e.expiry > QDateTime::currentDateTime() )
275 mEntries.append( e );
279 mBlockSignals =
true;
281 mBlockSignals =
false;
296 if ( !entry.imageUrl.isEmpty() )
299 const QString imagePath = QStringLiteral(
"%1/%2.png" ).arg( previewDir ).arg( entry.key );
300 if ( QFile::exists( imagePath ) )
302 const QImage img( imagePath );
303 entry.image = QPixmap::fromImage( img );
307 fetchImageForEntry( entry );
320 if ( entry.
expiry.isValid() )
330 const auto findIter = std::find_if( mEntries.begin(), mEntries.end(), [entry](
const QgsNewsFeedParser::Entry & candidate )
332 return candidate.key == entry.key;
334 if ( findIter != mEntries.end() )
336 const int entryIndex =
static_cast< int >( std::distance( mEntries.begin(), findIter ) );
338 QImage img = QImage::fromData( fetcher->
reply()->readAll() );
340 QSize size = img.size();
342 if ( size.width() > 250 )
344 size.setHeight(
static_cast< int >( size.height() *
static_cast< double >( 250 ) / size.width() ) );
345 size.setWidth( 250 );
348 if ( size.height() > 177 )
350 size.setWidth(
static_cast< int >( size.width() *
static_cast< double >( 177 ) / size.height() ) );
351 size.setHeight( 177 );
355 img = img.scaled( size, Qt::IgnoreAspectRatio, Qt::SmoothTransformation );
358 QImage previewImage( size, QImage::Format_ARGB32 );
359 previewImage.fill( Qt::transparent );
360 QPainter previewPainter( &previewImage );
361 previewPainter.setRenderHint( QPainter::Antialiasing,
true );
362 previewPainter.setRenderHint( QPainter::SmoothPixmapTransform,
true );
363 previewPainter.setPen( Qt::NoPen );
364 previewPainter.setBrush( Qt::black );
365 previewPainter.drawRoundedRect( 0, 0, size.width(), size.height(), 8, 8 );
366 previewPainter.setCompositionMode( QPainter::CompositionMode_SourceIn );
367 previewPainter.drawImage( 0, 0, img );
368 previewPainter.end();
372 QDir().mkdir( previewDir );
373 const QString imagePath = QStringLiteral(
"%1/%2.png" ).arg( previewDir ).arg( entry.
key );
374 previewImage.save( imagePath );
376 mEntries[ entryIndex ].image = QPixmap::fromImage( previewImage );
379 fetcher->deleteLater();
386 static const QRegularExpression sRegexp( QStringLiteral(
"[^a-zA-Z0-9]" ) );
387 QString res = baseUrl;
388 res = res.replace( sRegexp, QString() );
QFlags< SettingsOption > SettingsOptions
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)