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Diffstat (limited to 'src/webengine')
| -rw-r--r-- | src/webengine/doc/src/qtwebengine-platform-notes.qdoc | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/webengine/doc/src/qtwebengine-platform-notes.qdoc b/src/webengine/doc/src/qtwebengine-platform-notes.qdoc index 06a4a53a9..57e3ce6a8 100644 --- a/src/webengine/doc/src/qtwebengine-platform-notes.qdoc +++ b/src/webengine/doc/src/qtwebengine-platform-notes.qdoc @@ -161,4 +161,24 @@ set to 1 or alternatively the \c{--no-sandbox} command line argument can be passed to the user application executable. + \section1 Accessibility and Performance + + Qt WebEngine enables accessibility support for web pages when the following conditions + are met: + + \list + \li Qt Core is configured and built with accessibility support enabled. + \li The QPA plugin is notified by the operating system that accessibility should be + activated. This happens for example when using a screen reader application on Windows + or VoiceOver on \macos. + \endlist + + Due to some limitations, the Linux QPA plugin almost always reports that accessibility should + be activated. On big HTML pages, this can cause a significant slowdown in rendering speed. + + Because of that, from Qt 5.9 onwards, Qt WebEngine accessibility support is disabled by default + on Linux. + It can be re-enabled by setting the \c QTWEBENGINE_ENABLE_LINUX_ACCESSIBILITY environment + variable to a non-empty value. + */ |