Ozone-Wayland Support in Chromium

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Ozone-Wayland Support in Chromium Michael Catanzaro Igalia S.L. October 21, 2015 Outline 1 GENIVI Browser 2 Chromium Basics 3 Ozone-Wayland GENIVI Browser Requirements • Should use Chromium • Should have no user interface • Should provide D-Bus API • Vendors will create derivative browsers utilizing the D-Bus API Technology Overview • D-Bus • Chromium • Ozone • Wayland • Ozone-Wayland What is D-Bus? • Dominant IPC framework on GNU/Linux • Exposes objects with signals and methods • Intended for UNIX sockets (but can run over TCP too!) Technology Overview • D-Bus • Chromium • Ozone • Wayland • Ozone-Wayland What is Chromium? • Open source web browser and operating system • Basis for proprietary Google Chrome browser • Chromium is a project, not a product Chromium Blink • WebKit fork • More specifically, fork of WebCore Content API • Content API sits below UI layer • Handles multiprocess management of web views • Roughly equivalent to WebKit2 API Technology Overview • D-Bus • Chromium • Ozone • Wayland • Ozone-Wayland Ozone • Platform abstraction layer for Chromium • APIs to encapsulate platform-specific details • Implementations: libcaca, GBM, Wayland Technology Overview • D-Bus • Chromium • Ozone • Wayland • Ozone-Wayland What is Wayland? • Modern replacement for X • Dramatically simpler • Applications can be untrusted Technology Overview • D-Bus • Chromium • Ozone • Wayland • Ozone-Wayland Ozone-Wayland Architecture Ozone-Wayland: Status • Most things work • Pages render well • Many things need implemented • Still generally unstable Ozone-Wayland: What Needs Implemented? • Fontconfig integration • Multiseat • Window resizing • Window movement • Minimize • Drag-and-drop • Copy/paste • Text selection • More! Building a Browser on Ozone-Wayland • One Wayland connection per application; Ozone-Wayland owns the connection • Derivative browsers should implement nested compositor approach Summary • Ozone-Wayland is needed for any Chromium-based browser. • Ozone-Wayland is incomplete and will require additional development effort. • Ozone-Wayland requires long-term maintenance investment..

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