GtkScrolledWindow: Add overlay scrollbars

Desktop / GNOME / GTK - Matthias Clasen [redhat.com] - 20 October 2014 22:07 UTC

This commit adds a mode to GtkScrolledWindow in which it puts narrow, auto-hiding scrollbars over the content, instead of allocating room for the scrollbars outside of the content. We use traditional scrollbars if we find a mouse or if overlay scrolling has explicitly turned off.

For test purposes, GTK_TEST_TOUCHSCREEN can be used to get overlay scrolling even in the presence of a mouse. The environment variable GTK_OVERLAY_SCROLLING can also be used to force overlay scrolling on or off.

4455266 GtkScrolledWindow: Add overlay scrollbars
gtk/gtkscrolledwindow.c | 614 +++++++++++++++++++++++++++++++++++++++++++++--
gtk/gtkscrolledwindow.h | 18 +-
2 files changed, 603 insertions(+), 29 deletions(-)

Upstream: git.gnome.org

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