What's Cooking for KDE Frameworks 6

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What’s cooking for KDE Frameworks 6 Qt 6 and beyond 2021/06/19, Akademy Nicolas Fella [email protected] @nicofee There’s a new Qt in town ● Qt 6 was released end of 2020 ● Next major version of KDE Frameworks on the horizon ● New challenges and opportunities ● This talk: – What has happened so far – What’s going to come – And why? Kickoff Akademy 2019 – CC-BY Paul Brown Kickoff II Virtual D4 Easy porting ● Qt promises easy 5 → 6 transition ● We want the same for KF5 → KF6 ● General principles for breaking API changes: – Introduce new API now – Port users to new API – Once all (significant) users are ported deprecate old API – Remove old API when branching ● Keep amount of transition-time breakage minimal Better APIs ● Use Qt or std:: API where appropriate ● Avoid duplication ● Use new C++17 vocabulary ● Address // TODO KF6 ● Remove some rarely used stuff Better Widgets/QtQuick separation ● Many things are entangled with Qt Widgets without needing to ● Improve QML compatibility ● e.g. QWidget → QWindow ● Widgets popups ● Avoiding QtWidgets saves binary size Reduce dependencies KIO dependencies ● Make things easier to deploy ● Save installation size ● Make Frameworks more attractive for third-party users Better Interface/Implementation separation ● Some Frameworks mix interface and implementation ● Password storage via KWallet ● Sharing via Purpose ● File indexing via Baloo Better cross-platform support ● Ties into platform/interface topic ● Create such separation where appropriate ● Fill gaps where separation exists ● Avoid DBus, X11, Wayland dependencies ● Add new API to solve recurring problems Retire some frameworks ● KDELibs4Support ● KHTML ● KDEWebKit ● KJS(Embed) ● Kross ● KMediaPlayer ● KXmlRpcClient ● KInit A nice Workboard ● Phabricator workboard: https://phabricator.kde.org/ project/view/310/ ● Currently 384 tasks ● Help needed! Sprint II Highlights ● Retire KServiceTypeTrader ● Retire KIconLoader ● Replace KWallet API with QtKeychain ● Rework KRun ● Finally remove KToolInvokation ● Break up KDeclarative Questions? .

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