Interesting changes in Qt 6.0/.1/.2/.3

[The-Compiler]

Moved from #7202

• Merge WebEngineHistory's quick implementation into QWebEngineHistory (I9f9a73bb) · Gerrit Code Review
• QWebEnginePage: add new 'loading' property and expose QWebEngineLoadingInfo (I77730307) · Gerrit Code Review
• Add API for favicon database (I6096ad9a) · Gerrit Code Review
• Add QPageRanges to PDF printing (I0a66c4f1) · Gerrit Code Review
• Add QWebEngineNewWindowRequest::openIn(QWebEnginePage *) (I15e72d52) · Gerrit Code Review - but note [QTBUG-117867] QWebEngineNewWindowRequest::openIn() breaks page interceptor - Qt Bug Tracker
• Add missing FileSelectionMode enum value (Ie6978223) · Gerrit Code Review
• Fix inconsistent number of load signals and their order (not an API change, but relevant for us)
• Implement dialogs of File System Access API (no API change, just potentially interesting)
• Add basic USB device logging (same)
• Suppress error pages also for http errors if they are disabled (no API change, but interesting)
• Disable kAllowContentInitiatedDataUrlNavigations (I9398f54b) · Gerrit Code Review
• Widgets (like the command text box) now insert test into the primary selection (if available) (ignore the fix version, it only made it into 6.0 but didn't get a new ticket)
• [QTBUG-93848] QNetworkInformation: Behind connectivity portal - Qt Bug Tracker

Remaining API changes overview

• QWebEngineDownloadItem renamed to QWebEngineDownloadRequest
  • More signals we could potentially use?
  • finished signal renamed to isFinishedChanged
• QWebEngineHistory changed, now has a QWebEngineHistoryModel?
• QWebEnginePage changes
  • QWebEnginePage::FileSelectionMode::FileSelectUploadFolder
  • New navigationRequested signal, emitting QWebEngineNavigationRequest (new class)
  • New newWindowRequested signal, emitting QWebEngineNewWindowRequest (new class)
  • New loadingChanged signal, emitting QWebEngineLoadingInfo (new class)
• QWebEngineScript changes
  • isNull() removed
  • New sourceUrl() and setSourceUrl()
• QWebEngineSettings changes
  • globalSettings() moved (?)
  • New setParentSettings