diff options
| author | Markus Armbruster <armbru@redhat.com> | 2021-09-17 16:31:15 +0200 |
|---|---|---|
| committer | Markus Armbruster <armbru@redhat.com> | 2021-09-25 06:55:54 +0200 |
| commit | b6fd5434de9cdf356fde37f55f52d121361e3297 (patch) | |
| tree | e61b791ea2d7392f5e91222972b5ee805412c3b2 /qapi | |
| parent | 3cda299dda578c64b06fcd20e4510b10a7a64bd9 (diff) | |
qapi: Convert simple union InputEvent to flat one
Simple unions predate flat unions. Having both complicates the QAPI
schema language and the QAPI generator. We haven't been using simple
unions in new code for a long time, because they are less flexible and
somewhat awkward on the wire.
To prepare for their removal, convert simple union InputEvent to an
equivalent flat one. Adds some boilerplate to the schema, which is a
bit ugly, but a lot easier to maintain than the simple union feature.
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210917143134.412106-5-armbru@redhat.com>
Diffstat (limited to 'qapi')
| -rw-r--r-- | qapi/ui.json | 42 |
1 files changed, 38 insertions, 4 deletions
diff --git a/qapi/ui.json b/qapi/ui.json index 9e04f9d65d..d7567ac866 100644 --- a/qapi/ui.json +++ b/qapi/ui.json @@ -961,6 +961,38 @@ 'value' : 'int' } } ## +# @InputEventKind: +# +# Since: 2.0 +## +{ 'enum': 'InputEventKind', + 'data': [ 'key', 'btn', 'rel', 'abs' ] } + +## +# @InputKeyEventWrapper: +# +# Since: 2.0 +## +{ 'struct': 'InputKeyEventWrapper', + 'data': { 'data': 'InputKeyEvent' } } + +## +# @InputBtnEventWrapper: +# +# Since: 2.0 +## +{ 'struct': 'InputBtnEventWrapper', + 'data': { 'data': 'InputBtnEvent' } } + +## +# @InputMoveEventWrapper: +# +# Since: 2.0 +## +{ 'struct': 'InputMoveEventWrapper', + 'data': { 'data': 'InputMoveEvent' } } + +## # @InputEvent: # # Input event union. @@ -975,10 +1007,12 @@ # Since: 2.0 ## { 'union' : 'InputEvent', - 'data' : { 'key' : 'InputKeyEvent', - 'btn' : 'InputBtnEvent', - 'rel' : 'InputMoveEvent', - 'abs' : 'InputMoveEvent' } } + 'base': { 'type': 'InputEventKind' }, + 'discriminator': 'type', + 'data' : { 'key' : 'InputKeyEventWrapper', + 'btn' : 'InputBtnEventWrapper', + 'rel' : 'InputMoveEventWrapper', + 'abs' : 'InputMoveEventWrapper' } } ## # @input-send-event: |