[CSD] Cannot move window with drag on touchscreen

UNCONFIRMED
Unassigned

Status

()

defect
P3
normal
UNCONFIRMED
5 months ago
2 months ago

People

(Reporter: aravindet, Unassigned)

Tracking

(Blocks 2 bugs)

66 Branch
Points:
---
Dependency tree / graph

Firefox Tracking Flags

(Not tracked)

Details

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:66.0) Gecko/20100101 Firefox/66.0

Steps to reproduce:

On a touchscreen laptop using Arch Linux / Gnome 3.30 / Wayland, start Firefox with MOZ_USE_XINPUT2=1 (without which no touch events work). From Menu > Customize, uncheck "Titlebars" to switch to client-side decorations.

Using the touch screen, touch an empty spot on the titlebar and drag.

Actual results:

The window did not move.

Expected results:

The window should move as when dragging using a mouse or touch-dragging with system titlebars.

This bug is also present when when Firefox is started with the GDK_BACKEND=wayland environment variable instead of MOZ_USE_XINPU2.

Blocks: gtktitlebar
Component: Untriaged → Widget: Gtk
Product: Firefox → Core
Blocks: wayland
Priority: -- → P3

also happens with Ubuntu 18.04 and 19.04. Mouse drag is handled correctly though.

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