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Currently xkb_mods has the following members:
- uint8_t real_mods - 8 X11 core mods
- xkb_mod_mask_t vmods - 16 virtual mods, zero-based index
- xkb_mod_mask_t mask - the computed effective *real* modifier mask,
basically a cache for the first two which is:
real_mods | real mods computed from vmods
Our API acts on masks which combine the real_mods and vmods into a
single value, which is:
8 first bits real mods | 16 next bits virtual mods
(XkbNumModifiers = 8, XkbNumVirtualMods = 16). This is also the format
which ResolveVModMask uses (which is where all the modifier masks really
"come from", e.g. "Shift+Lock+Level5" -> xkb_mod_mask_t).
What the code does now after getting the mask from ResolveVModMask, is
to break it into real part and virtual part and store them seperately,
and then join them back together when the effective mask is calculated.
This is all pretty useless work. We change xkb_mods to the following:
- xkb_mod_mask_t mods - usually what ResolveVModMask returns
- xkb_mod_mask_t mask - the computed mask cache
And try to consistently use the word "mods" for the original,
non-effective mods and mask for the effective mods (which can only
contain real mods for now, because things break otherwise).
The separation is also made clearer. The effective masks are computed by
UpdateModifiersFromCompat after all the sections have been compiled;
before this the mask field is never touched; after this (i.e. map.c and
state.c) the original mods field is never touched. This single execption
to this rule is keymap-dump.c: it needs to print out only the original
modifiers, not computed ones. This is also the reason why we actually
keep two fields instead keeping one and modifying it in place.
The next logical step is probably to turn the real mods into vmods
themselves, and get rid of the distinction entirely (in a compatible
way).
Signed-off-by: Ran Benita <ran234@gmail.com>
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It maps a vmod to a mask, of course.
Signed-off-by: Ran Benita <ran234@gmail.com>
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After compiling all of the sections, UpdateModifiersFromCompat does all
of the vmod -> real mods translations, including types/kt_entries.
keytypes.c also has code that does that, but it's unneeded:
- Later sections don't look at their effective masks, so doing it later
is fine.
- When this code is executed, the vmods -> real mods mapping is empty
(that is set up later), so VModsToReal has no effect here.
So we can just remove it.
However UpdateModifiersFromCompat didn't update the preserve mask, so do
that.
Signed-off-by: Ran Benita <ran234@gmail.com>
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We don't need the indirection. We store the preserve mask directly in
the entry, and create a new one if it doesn't exists (which is exactly
what the current code does in a roundabout way).
Incidentally this fixes a bug where the effective modifier mask of the
entries' preserve[] wasn't calculated, so the virtual modifiers had no
effect there.
Signed-off-by: Ran Benita <ran234@gmail.com>
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The difference between the two are irrelevant here.
Signed-off-by: Ran Benita <ran234@gmail.com>
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Signed-off-by: Ran Benita <ran234@gmail.com>
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A fairly simple helper which, given an xkb_mod_mask_t, removes all
modifiers which are consumed during processing of a particular key.
Signed-off-by: Daniel Stone <daniel@fooishbar.org>
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Instead of relying on people including syslog.h, add our own
XKB_LOG_LEVEL_* defines.
Signed-off-by: Daniel Stone <daniel@fooishbar.org>
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Good for a small performance win on my system.
Signed-off-by: Daniel Stone <daniel@fooishbar.org>
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The ONE_LEVEL definition from xkeyboard-config doesn't specify any
actual levels, but there's an implicit (anything unmatched) -> Level1
rule. Given this, each type actually has at least one level, whether or
not it specifies anything.
Fixes stringcomp.
Signed-off-by: Daniel Stone <daniel@fooishbar.org>
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Signed-off-by: Daniel Stone <daniel@fooishbar.org>
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This was basically an open-coded VModsToReal, which we were using in the
line immediately below.
Signed-off-by: Daniel Stone <daniel@fooishbar.org>
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Thus giving a hint as to which directory we're trying to find.
Signed-off-by: Daniel Stone <daniel@fooishbar.org>
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So we can print more intelligent debugging messages without needing
helper functions for the failed_includes array.
Signed-off-by: Daniel Stone <daniel@fooishbar.org>
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Keep around a list of paths we tried to add but couldn't.
Signed-off-by: Daniel Stone <daniel@fooishbar.org>
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Signed-off-by: Daniel Stone <daniel@fooishbar.org>
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Signed-off-by: Daniel Stone <daniel@fooishbar.org>
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We didn't expose this to the outside world, and its only trivial user
was xkb_map_new_from_rules.
Signed-off-by: Daniel Stone <daniel@fooishbar.org>
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Right now it just comes from build-time, but eventually this should be
sourced from configuration files at runtime too.
Signed-off-by: Daniel Stone <daniel@fooishbar.org>
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Signed-off-by: Daniel Stone <daniel@fooishbar.org>
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Currently the user has no way of knowing which of the active modifiers
have been used in the translation of a keycode to its keysyms. The use
case is described in the GTK docs: say there's a menu accelerator
activated by "<Alt>+". Some layouts have "+" shifted, and some have it
on the first level. So in keymaps where "+" is shifted, the Shift
modifier is consumed and must be ignored when the user is testing
for "<Alt>+". Otherwise, we may get "<Alt><Shift>+" and the accelerator
should not actually fire.
For this we also use the preserve[] information in the key types, which
can forces us to report modifiers as unconsumed even if they were used
in the translation. Until now we didn't do anything with this
information.
The API tries to match its surronding. It's not very efficient but this
can be fixed.
Signed-off-by: Ran Benita <ran234@gmail.com>
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The default type is copied over for each new key type to build on.
Further, it can be modified from within the xkb_types section itself,
with statements such as "type.modifiers = Lock" which affect all
subsequent type definitions.
The default type is (well, by default) just the simplest one level type
possible, with name "default". When no types are defined at all, it is
copied over to the keymap as the single type.
xkeyboard-config never changes the default type. There is also no sane
use case for doing so; changing any thing there doesn't make sense. So
instead of doing all the hard work of maintaining and copying this type,
which is practically never used, just remove it and initialize new types
appropriately.
Signed-off-by: Ran Benita <ran234@gmail.com>
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We don't use these strings much, so storing them in the manner they
were compiled saves some copying and space.
Signed-off-by: Ran Benita <ran234@gmail.com>
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This array is only initialized once.
Signed-off-by: Ran Benita <ran234@gmail.com>
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The current code doesn't resize it any more.
Signed-off-by: Ran Benita <ran234@gmail.com>
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If there is no map entry for some modifier combination, the default is
to use level 1. The removed code is an optimization to save some space
by removing these entries. But it doesn't actually save any space, and
did not in fact remove all level 1 entries (it walks the array while
modifying it so there's an off-by-one error).
We can instead keep them in the types but just not print them in
keymap-dump.c, to get about the same behavior.
Signed-off-by: Ran Benita <ran234@gmail.com>
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Currently each xkb_key_type has a preserve array, which is only allocated
if a preserve[] statement is specified in the type. In this case each map
entry has an element in the array.
The space savings are negligible; put this field where it logically
belongs.
Signed-off-by: Ran Benita <ran234@gmail.com>
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The calculations were performed incorrectly in several places,
specifically shifting by 16 instead of 8 (= XkbNumModifiers) and masking
with 0xff instead of 0xffff.
More stuff that probably never worked as intended. This also makes these
more grep-able when we remove the vmods/real_mods separation.
Signed-off-by: Ran Benita <ran234@gmail.com>
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Just make things easier to follow, no functional changes.
Signed-off-by: Ran Benita <ran234@gmail.com>
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Very little left to do for this.
Signed-off-by: Ran Benita <ran234@gmail.com>
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Xkb required every keymap to have at least the four following canonical
types: ONE_LEVEL, TWO_LEVEL, ALPHABETIC, KEYPAD. This is specified in
e.g. the kbproto spec and XkbKeyTypesForCoreSymbols(3) man page.
If these types are not specified in the keymap, the code specifically
checks for them and adds them to the 4 first places in the types array,
such that they exist in every keymap. These are also the types (along
with some non-required 4-level ones) that are automatically assigned to
keys which do not explicitly declare a type (see FindAutomaticType in
symbols.c, this commit doesn't touch these heuristics, whcih are also not
very nice but necessary).
The xkeyboard-config does not rely on the builtin xkbcomp definitions of
these types and does specify them explicitly, in types/basic and
types/numpad, which are virtually always included.
This commit removes the special behavior:
- The code is ugly and makes keytypes.c harder to read.
- The code practically never gets run - everyone who uses
xkeyboard-config or a keymap based upon it (i.e. everyone) doesn't need
it. So it doesn't get tested.
- It mixes policy with implementation for not very good reasons, it
seems mostly for default compatibility with X11 core.
- And of course we don't need to remain compatible with Xkb ABI neither.
Instead, if we read a keymap with no types specified at all, we simply
assign all keys a default one-level type (like ONE_LEVEL), and issue
plenty of warnings to make it clear (with verbosity >= 3). Note that
this default can actually be changed from within the keymap, by writing
something like
type.modifier = Shift
type.whatever_field = value
in the top level of the xkb_types section. (This functionality is
completely unused as well today, BTW, but makes some sense).
This change means that if someone writes a keymap from scratch and
doesn't add say ALPHABETIC, then something like <AE11> = { [ q Q ]; }; will
ignore the second level. But as stated above this should never happen.
Signed-off-by: Ran Benita <ran234@gmail.com>
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Signed-off-by: Ran Benita <ran234@gmail.com>
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The possible key behaviors are:
KB_RadioGroup, KB_Overlay1, KB_Overlay2: already removed support for
these.
KB_Lock (with or without KB_Permanent): used to ignore key presses or
releases to simulate and deal with some legacy keyboard behaviors
(like keys that physically lock). Not used at all.
We already ignore them while processing key events in state.c, so make
it official.
Signed-off-by: Ran Benita <ran234@gmail.com>
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to make it a bit nicer.
Signed-off-by: Ran Benita <ran234@gmail.com>
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We treat the key names as fixed length, non NUL terminated strings of
length XkbKeyNameLength, and use the appropriate *Text functions to
print them. We also use strncpy everywhere instead of memcpy to copy
the names, because it does some NUL padding and we might as well.
Signed-off-by: Ran Benita <ran234@gmail.com>
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Signed-off-by: Ran Benita <ran234@gmail.com>
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Signed-off-by: Ran Benita <ran234@gmail.com>
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Several types are used over the code for shift levels; better to use
just one.
Signed-off-by: Ran Benita <ran234@gmail.com>
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The action.c needs to use two constant Expr values, constTrue and
constFalse. To do this is keeps to static globals Expr's of type boolean
and the values "true" and "false" which need to be interned (and thus
context specific). The interning means they can't be made static const,
so there's a global flag and initializer function.
Instead of using this unsafe global state, we can simply use an integer
boolean expression (1 and 0) instead of a string one ("true" and
"false") and make them const.
Signed-off-by: Ran Benita <ran234@gmail.com>
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We need this for later.
Signed-off-by: Ran Benita <ran234@gmail.com>
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Signed-off-by: Ran Benita <ran234@gmail.com>
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Signed-off-by: Ran Benita <ran234@gmail.com>
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Signed-off-by: Ran Benita <ran234@gmail.com>
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Mostly the ones used to track the fields of types/keys/leds which were
already defined.
Signed-off-by: Ran Benita <ran234@gmail.com>
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Signed-off-by: Ran Benita <ran234@gmail.com>
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And use XKB_LED_INVALID instead of _LED_Unbound, which served the same
purpose here.
Signed-off-by: Ran Benita <ran234@gmail.com>
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Signed-off-by: Ran Benita <ran234@gmail.com>
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These were repeated 5 times.
Note that this changes the ABI slightly: XKB_MOD_NAME_CAPS is changed
from "Caps Lock" to "Lock", which is the ordinary legacy mod name for
it. Since its hidden behind a #define, it's best to stay compatible with
the old names (as I think was intended, given that "Mod1", etc. are the
same).
Signed-off-by: Ran Benita <ran234@gmail.com>
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Signed-off-by: Ran Benita <ran234@gmail.com>
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The current code made us miss vmod index 0. Also look at the code in
vmod.c:LookupVModMask.
Signed-off-by: Ran Benita <ran234@gmail.com>
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