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protocol: clarify when wl_surface.enter events are sent

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It was unclear what happens when a output global is bound. I believe the
expectation is that all surfaces on that output will receive enter.

Also make it explicit a surface must be mapped, i.e. have both content and role,
to enter an output.

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
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Yuxuan Shui 2023-02-06 22:52:59 +00:00
parent 0dc23e380a
commit 58384280d7
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1 changed files with 4 additions and 1 deletions
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protocol/wayland.xml
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@ -1635,7 +1635,7 @@
<description summary="surface enters an output"> <description summary="surface enters an output">
This is emitted whenever a surface's creation, movement, or resizing This is emitted whenever a surface's creation, movement, or resizing
results in some part of it being within the scanout region of an results in some part of it being within the scanout region of an
output. output. A surface must be mapped before it can enter any outputs.
Note that a surface may be overlapping with zero or more outputs. Note that a surface may be overlapping with zero or more outputs.
</description> </description>
@ -2562,6 +2562,9 @@
actually visible. This typically corresponds to a monitor that actually visible. This typically corresponds to a monitor that
displays part of the compositor space. This object is published displays part of the compositor space. This object is published
as global during start up, or when a monitor is hotplugged. as global during start up, or when a monitor is hotplugged.
When an output global is first bound, wl_surface.enter events should be
sent for all surfaces already on that output.
</description> </description>
<enum name="subpixel"> <enum name="subpixel">