16#include "moc_qgsnewsfeedparser.cpp"
31#include <QRegularExpression>
51 , mBaseUrl( feedUrl.toString() )
54 , mFeedKey( keyForFeed( mBaseUrl ) )
59 QUrlQuery query( feedUrl );
66 if ( feedLanguage.isEmpty() )
70 if ( !feedLanguage.isEmpty() && feedLanguage != QLatin1String(
"C" ) )
71 query.addQueryItem( QStringLiteral(
"lang" ), feedLanguage.mid( 0, 2 ) );
79 if ( feedUrl.isLocalFile() )
81 query.addQueryItem( QStringLiteral(
"lat" ), QString::number(
static_cast< int >( feedLat ) ) );
82 query.addQueryItem( QStringLiteral(
"lon" ), QString::number(
static_cast< int >( feedLong ) ) );
92 if ( feedUrl.isLocalFile() )
94 if ( !query.toString().isEmpty() )
95 mFeedUrl = QUrl( mFeedUrl.toString() +
'_' + query.toString() );
99 mFeedUrl.setQuery( query );
111 const int beforeSize = mEntries.size();
112 mEntries.erase( std::remove_if( mEntries.begin(), mEntries.end(),
113 [key, &dismissed](
const Entry & entry )
115 if ( entry.key == key )
121 } ), mEntries.end() );
122 if ( beforeSize == mEntries.size() )
125 sTreeNewsFeedEntries->deleteItem( QString::number( key ), {mFeedKey} );
128 if ( !dismissed.imageUrl.isEmpty() )
131 const QString imagePath = QStringLiteral(
"%1/%2.png" ).arg( previewDir ).arg( key );
132 if ( QFile::exists( imagePath ) )
134 QFile::remove( imagePath );
138 if ( !mBlockSignals )
139 emit entryDismissed( dismissed );
144 const QList< QgsNewsFeedParser::Entry >
entries = mEntries;
158 QNetworkRequest req( mFeedUrl );
161 mFetchStartTime = QDateTime::currentDateTimeUtc().toSecsSinceEpoch();
168 QNetworkReply *reply = task->
reply();
175 if ( reply->error() != QNetworkReply::NoError )
177 QgsMessageLog::logMessage( tr(
"News feed request failed [error: %1]" ).arg( reply->errorString() ) );
182 QMetaObject::invokeMethod(
this,
"onFetch", Qt::QueuedConnection, Q_ARG( QString, task->
contentAsString() ) );
188void QgsNewsFeedParser::onFetch(
const QString &content )
194 const QVariantList
entries = json.toList();
195 QList< QgsNewsFeedParser::Entry > fetchedEntries;
196 fetchedEntries.reserve(
entries.size() );
197 for (
const QVariant &e :
entries )
200 const QVariantMap entryMap = e.toMap();
201 incomingEntry.key = entryMap.value( QStringLiteral(
"pk" ) ).toInt();
202 incomingEntry.title = entryMap.value( QStringLiteral(
"title" ) ).toString();
203 incomingEntry.imageUrl = entryMap.value( QStringLiteral(
"image" ) ).toString();
204 incomingEntry.content = entryMap.value( QStringLiteral(
"content" ) ).toString();
205 incomingEntry.link = entryMap.value( QStringLiteral(
"url" ) ).toString();
206 incomingEntry.sticky = entryMap.value( QStringLiteral(
"sticky" ) ).toBool();
207 bool hasExpiry =
false;
208 const qlonglong expiry = entryMap.value( QStringLiteral(
"publish_to" ) ).toLongLong( &hasExpiry );
210 incomingEntry.expiry.setSecsSinceEpoch( expiry );
212 fetchedEntries.append( incomingEntry );
215 const auto entryIter { std::find_if( mEntries.begin(), mEntries.end(), [incomingEntry](
const QgsNewsFeedParser::Entry & candidate )
217 return candidate.key == incomingEntry.key;
219 const bool entryExists { entryIter != mEntries.end() };
222 if ( hasExpiry && expiry < mFetchStartTime )
227 else if ( entryExists )
229 const bool imageNeedsUpdate = ( entryIter->imageUrl != incomingEntry.imageUrl );
231 if ( imageNeedsUpdate && ! entryIter->imageUrl.isEmpty() )
234 const QString imagePath = QStringLiteral(
"%1/%2.png" ).arg( previewDir ).arg( entryIter->key );
235 if ( QFile::exists( imagePath ) )
237 QFile::remove( imagePath );
240 *entryIter = incomingEntry;
241 if ( imageNeedsUpdate && ! incomingEntry.imageUrl.isEmpty() )
242 fetchImageForEntry( incomingEntry );
245 storeEntryInSettings( incomingEntry );
249 else if ( !hasExpiry || expiry >= mFetchStartTime )
251 if ( !incomingEntry.imageUrl.isEmpty() )
252 fetchImageForEntry( incomingEntry );
254 mEntries.append( incomingEntry );
255 storeEntryInSettings( incomingEntry );
261 emit
fetched( fetchedEntries );
264void QgsNewsFeedParser::readStoredEntries()
267 std::sort( existing.begin(), existing.end(), [](
const QString & a,
const QString & b )
269 return a.toInt() < b.toInt();
271 mEntries.reserve( existing.size() );
272 for (
const QString &entry : existing )
274 const Entry e = readEntryFromSettings( entry.toInt() );
275 if ( !e.expiry.isValid() || e.expiry > QDateTime::currentDateTime() )
276 mEntries.append( e );
280 mBlockSignals =
true;
282 mBlockSignals =
false;
297 if ( !entry.imageUrl.isEmpty() )
300 const QString imagePath = QStringLiteral(
"%1/%2.png" ).arg( previewDir ).arg( entry.key );
301 if ( QFile::exists( imagePath ) )
303 const QImage img( imagePath );
304 entry.image = QPixmap::fromImage( img );
308 fetchImageForEntry( entry );
321 if ( entry.
expiry.isValid() )
331 const auto findIter = std::find_if( mEntries.begin(), mEntries.end(), [entry](
const QgsNewsFeedParser::Entry & candidate )
333 return candidate.key == entry.key;
335 if ( findIter != mEntries.end() )
337 const int entryIndex =
static_cast< int >( std::distance( mEntries.begin(), findIter ) );
339 QImage img = QImage::fromData( fetcher->
reply()->readAll() );
341 QSize size = img.size();
343 if ( size.width() > 250 )
345 size.setHeight(
static_cast< int >( size.height() *
static_cast< double >( 250 ) / size.width() ) );
346 size.setWidth( 250 );
349 if ( size.height() > 177 )
351 size.setWidth(
static_cast< int >( size.width() *
static_cast< double >( 177 ) / size.height() ) );
352 size.setHeight( 177 );
356 img = img.scaled( size, Qt::IgnoreAspectRatio, Qt::SmoothTransformation );
359 QImage previewImage( size, QImage::Format_ARGB32 );
360 previewImage.fill( Qt::transparent );
361 QPainter previewPainter( &previewImage );
362 previewPainter.setRenderHint( QPainter::Antialiasing,
true );
363 previewPainter.setRenderHint( QPainter::SmoothPixmapTransform,
true );
364 previewPainter.setPen( Qt::NoPen );
365 previewPainter.setBrush( Qt::black );
366 previewPainter.drawRoundedRect( 0, 0, size.width(), size.height(), 8, 8 );
367 previewPainter.setCompositionMode( QPainter::CompositionMode_SourceIn );
368 previewPainter.drawImage( 0, 0, img );
369 previewPainter.end();
373 QDir().mkdir( previewDir );
374 const QString imagePath = QStringLiteral(
"%1/%2.png" ).arg( previewDir ).arg( entry.
key );
375 previewImage.save( imagePath );
377 mEntries[ entryIndex ].image = QPixmap::fromImage( previewImage );
380 fetcher->deleteLater();
387 static const QRegularExpression sRegexp( QStringLiteral(
"[^a-zA-Z0-9]" ) );
388 QString res = baseUrl;
389 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)