The iOS code was making a direct call to `keyman.core.resetContext()`
rather than to `keyman.resetContext()`. This meant that the
`OutputTarget` was not set and the `newContext` event would never be
called (as well as triggering a background warning in the language
processor "OutputTarget missing during an invalidateContext call").
Refactored to include a wrapper for `resetContext()` in ios-host.js, as
I think it's better to proxy all calls to KMW consistently through the
host javascript.
(There are a couple of other direct calls which could be cleaned up;
search for "evaluateJavaScript" to find all calls; I think we could
consider build a wrapper for all these calls?)
Adjusts the dimensions to use pixel boundaries to prevent antialiasing
for some of the key preview and longpress popups, and adjusts horizontal
positioning of key preview to center more precisely, for iOS.
I am not sure how this was ever working. This just adds the specific
structure sizes for x64 and verifies that the Delphi sizes are the
same as the reported sizes from C++.
Minor tweak to printf format args for kcframe to assist in this, sorting
a compiler warning.
Observed while debugging another issue on iOS. The
VisualKeyboard.waitForFonts function sets up a busy timer to wait for
font loading. This functionality is not even needed on the iOS app,
because it's really only used for the touch alias elements.
However, it was being called, potentially multiple times, leading to the
timer never being removed. On Android, the timer was correctly removed.
This aligns the iOS code path with the Android code path.
Fixes#5942.
The touch alias element position was not consistent across all browsers,
leading to misalignment in some situations. Identified missing CSS to
make the positioning consistent, as far as I can tell, which led to the
additional benefit of reducing the per-browser special cases.
The refocus of internal edit (setActiveElement) after every keystroke
was causing a `newcontext` event to be triggered. We should never need
to do this, but have chosen to move it within the resetContext pattern,
to minimize the changes.
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)
```
