When setting the visibility of a libdecor frame on a compositor that
supports XDG decorations, libdecor 0.1 will update the geometry of the
XDG surface. GLFW attempted to set the visibility before having told
libdecor what size the content area is. This caused a Wayland protocol
error when libdecor attempted to set the window size to 0x0.
This commit adds setting the content area size for the libdecor frame
directly after creation, allowing libdecor to know what it's doing.
Much of libdecor is initialized only after certain events have been
received from the compositor and some parts of libdecor 0.1 are unsafe
to use until this delayed initialization has completed.
Since libdecor does not provide an API to query if or be notified when
this has happened, GLFW processed events until its newly created
libdecor frame had created its XDG shell objects.
This commit switches to using a generic Wayland sync point created just
after libdecor (and presumably its plugin) has set up its delayed
initialization, instead of relying on the more specific implementation
detail mentioned above.
It also makes this wait mandatory before the first libdecor frame is
created instead of a pre-condition for certain libdecor frame calls,
hopefully removing even more dependence on implementation details.
The current wording states that all keys have synthetic key release
events generated after focus is lost, but keys that aren't named
don't have any state held, so no such events are generated for them.
The new wording clarifies that only named keys have the events generated
for them.
The bitmask passed to MsgWaitForMultipleObjects was missing
QS_SENDMESSAGE, causing glfwWaitEventsTimeout not to return when the
thread received messages sent from other threads.
Fixes#2408
A GLFW_CURSOR_UNAVAILABLE error would be emitted each time the cursor
moved over the fallback decorations if the standard cursor shape
appropriate for that part was missing on the system.
These errors served no useful purpose and have been removed.
This replaces the previous scheme where scancodes were equal to keycodes
(an implausible and potentially misleading situation) with a set of
scancodes invented purely for the null platform.
This is partly based on the implementation of libdecor support in
PR #1693 by @ christianrauch.
Where available, the libdecor library is loaded at init and becomes the
preferred method for window decorations. On compositors that support
XDG decorations, libdecor in turn uses those. If not, libdecor has
a plug-in archtecture and may load additional libraries to either use
compositor-specific decorations or draw its own.
If necessary, support for libdecor can be disabled with the
GLFW_WAYLAND_LIBDECOR init hint. This is mostly in case some part of
the dynamic loading or duplication of header material added here turns
out to cause problems with future versions of libdecor-0.so.0.
Fixes#1639Closes#1693
Related to #1725
This commit simplifies the detection of which element of a fallback
decorated window the pointer has entered. Instead of looping through
the list of windows, the user pointer of fallback decoration surfaces is
set to the GLFW window object.
This replaces (one case of) manual management of weak links between
windows and monitors, both objects with complex life times, with
wl_object pointers used as opaque key values.
This is in preparation for adding support for libdecor, which creates
its own proxies on our display. It will likely also be helpful to some
people using native access on Wayland.
This is partly based on the implementation of libdecor support in
PR #1693 by @ christianrauch.
If a window was initially fullscreen then it would not get an XDG
decoration object. If the window was later switched to windowed mode it
would then get fallback decorations instead of XDG ones.
