As of the release of Mir 1.0, libmirclient has been deprecated[1] and
its developers recommend clients using it to switch to Wayland. This
patch removes support for libmirclient and instruct users to use the
experimental Wayland backend instead.
[1] https://discourse.ubuntu.com/t/mir-news-28th-september-2018/8184
This allows compositors which prefer to draw the decorations around
clients to do so, rather than letting GLFW draw its own decorations.
The appearance is thus entirely subject to the compositor used, but
should generally be better than the current solid colour decorations we
have, which we continue to use when the compositor doesn’t support this
protocol or tells us to draw the decorations ourselves.
This allows the compositor to avoid having to setup and teardown a
SIGBUS signal handler whenever it needs to read from this surface, as it
knows we won’t be able to shrink the file and so doesn’t have to protect
against that.
Only enabled on Linux, since only Linux has memfd_create()
When a key is pressed, text is generated from xkb and attached to the
global key_event variable.
If another key is pressed before ibus replies, this text in global
variable would be overwritten before the processed reply comes in and
the wrong character would be input, as shown in logs with
--debug-keyboard:
Press scancode: 0x19 clean_sym: w composed_sym: w text: w mods: numlock glfw_key: 87 (W) xkb_key: 119 (w)
↳ to IBUS: keycode: 0x11 keysym: 0x77 (w) mods: numlock
Press scancode: 0x20 clean_sym: o composed_sym: o text: o mods: numlock glfw_key: 79 (O) xkb_key: 111 (o)
↳ to IBUS: keycode: 0x18 keysym: 0x6f (o) mods: numlockIBUS processed scancode: 0x19 release: 0 handled: 0
From IBUS: scancode: 0x19 name: w is_release: 0
↳ to application: glfw_keycode: 0x57 (W) keysym: 0x77 (w) action: PRESS mods: numlock text: o
on_key_input: glfw key: 87 native_code: 0x77 action: PRESS mods: 0x0 text: 'o' state: 0 sent text to child
IBUS processed scancode: 0x20 release: 0 handled: 0
From IBUS: scancode: 0x20 name: o is_release: 0
↳ to application: glfw_keycode: 0x4f (O) keysym: 0x6f (o) action: PRESS mods: numlock text: o
on_key_input: glfw key: 79 native_code: 0x6f action: PRESS mods: 0x0 text: 'o' state: 0 sent text to child
Since the whole event is memcpy'd we can just use the text from the
event attached to the reply instead.
Fixes#819. Note that I have no idea whether the code works well on
retina screens, might have to multiple the pixel count by the scale
factor on those screens?
