wiki:AddingFeatures

Version 2 (modified by rakuco@webkit.org, 12 years ago) (diff)

Add the related CMake file to the list

  1. Introduction
  2. How to add an ENABLE flag

Introduction

The policy for adding new (major) features to WebKit is:

  • Send an email to webkit-dev describing the feature and linking to the tracking bug
  • If necessary, add an ENABLE flag for the feature.

How to add an ENABLE flag

By adding a build definition for ENABLE_FEATURE it allows code/preprocessor to test using ENABLE(FEATURE). You'll need to edit at least the following files:

  • Source/JavaScriptCore/Configurations/FeatureDefines.xcconfig
  • Source/WebCore/Configurations/FeatureDefines.xcconfig
  • Source/WebKit/mac/Configurations/FeatureDefines.xcconfig
  • Source/WebKit2/Configurations/FeatureDefines.xcconfig
  • Source/cmake/WebKitFeatures.cmake
  • Tools/Scripts/build-webkit
  • WebKitLibraries/win/tools/vsprops/FeatureDefines.vsprops
  • WebKitLibraries/win/tools/vsprops/FeatureDefinesCairo.vsprops

Note that's only permitting the feature. To actually turn it on you'll need to edit the build configurations for each port. (TODO: page describing where each configuration is?)