Fixes the following crash noted when testing on keymanweb.com, focusing
during the load process on a slow network.
```
helpers.ts:111 Uncaught TypeError: Cannot read properties of null (reading 'vkbd')
at g.pageFocusHandler (keymanweb.ts:125:44)
at sentryWrapped (helpers.ts:87:17)
```
Fixes#5929.
Fixes#6381.
This fixes four separate issues with the longpress popups and key
previews:
1. The key preview was offset by a couple of pixels (unreported issue).
2. The background 'shim' did not cover the key caps, which caused them
to look startlingly white when the rest of the background greyed
down (#5929).
3. The popup menu was incorrectly wrapping to two rows due to sizing
model mismatches (#6381).
4. The popup menu would be realigned incorrectly for the in-app
keyboard, when moving it to keep it in the keyboard area (#5929).
Fixes#6364.
Removes `&layerChanged` and adds `&newLayer` and `&oldLayer` system
stores with the additional nuances around values as described in #6364.
When embedding the On Screen Keyboard into a page, the calculation for
the bounding rectangle only took into account the first offsetParent,
which meant it would get the offset incorrect when there were multiple
layers of offsetParents.
Once I changed to using getAbsoluteX / getAbsoluteY, this also corrects
for scroll with window.pageOffsetY, so we can eliminate that special
case for fixed positioning.
This was observable in the Web Developer test window, where interaction
with the bottom row of the keyboard in touch mode was not working
correctly, in 15.0.210-beta.
The Caps Lock change I made in the previous commit broke
desktop Caps Lock handling. The fix was a little more
convoluted. Turns out that _UpdateVKShift is also pretty
crufty. I simplified it, removing dead code.
Some of the global color variables in shellHelperFunctions.sh were a
little dangerously named. This cleans that up and removes a couple of
redundant functions from other locations.
mac/bashHelperFunctions.sh should be removed and replaced with
references to shellHelperFunctions.sh -- but I wanted to leave that for
a separate branch.
Fixes#5964.
It seems that the test for subkey position was incorrect when the
document had been scrolled. Removing the test for `fixed` positioning
resolves the issue.
This fixes an issue that arises when loading the Keyman Developer Server
home page and there are registered keyboards, but no keyboards active.
The floating osk view would throw an exception because it would attempt
to set the title of the view from the active keyboard, which is `null`.
