#12942: Apple keyboard cursor keys don't work, accessibility bar covers bottom of
screen
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Reporter: Purduecoz | Owner: (none)
Type: defect | Status: new
Priority: high | Component: Port: iOS
Version: | Resolution:
Keywords: iOS 15, keyboard, cursor | Game:
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Comment (by criezy):
Thank you for the additional information.
So the bar you see is actually the input assistant bar. It contains by
default copy/paste buttons, auto correction and predictive text. In
ScummVM we try to remove all of those so that the bar is not visible.
Setting the autocorrection to `UITextAutocorrectionTypeNo` used to disable
both the autocorrection and predictive text. But apparently that is no
longer the case in iOS 15. I don't know if the change was done on purpose
or if this is a bug in iOS 15, and I can't find anything new in the Apple
developer documentation that could be used to disable the predictive text
from an application. But at least, as you found, there is a workaround as
the user can disable predictive text in the iOS keyboard settings.
I suspect the arrow keys issue is related to the new
`wantsPriorityOverSystemBehavior` property for a `UIKeyCommand` that was
added in iOS 15. To test this theory can you please edit
`backends/platform/ios7/ios7_keyboard.mm` to have the following code and
see if that fixes the issue for you?
The code starts around line 150.
{{{#!diff
--- old/backends/platform/ios7/ios7_keyboard.mm
+++ new/backends/platform/ios7/ios7_keyboard.mm
@@ -148,9 +148,13 @@ - (void)detachAccessoryView {
- (NSArray *)keyCommands {
UIKeyCommand *upArrow = [UIKeyCommand keyCommandWithInput:
UIKeyInputUpArrow modifierFlags: 0 action: @selector(upArrow:)];
+ upArow.wantsPriorityOverSystemBehavior = YES;
UIKeyCommand *downArrow = [UIKeyCommand keyCommandWithInput:
UIKeyInputDownArrow modifierFlags: 0 action: @selector(downArrow:)];
+ downArrow.wantsPriorityOverSystemBehavior = YES;
UIKeyCommand *leftArrow = [UIKeyCommand keyCommandWithInput:
UIKeyInputLeftArrow modifierFlags: 0 action: @selector(leftArrow:)];
+ leftArrow.wantsPriorityOverSystemBehavior = YES;
UIKeyCommand *rightArrow = [UIKeyCommand keyCommandWithInput:
UIKeyInputRightArrow modifierFlags: 0 action: @selector(rightArrow:)];
+ rightArrow.wantsPriorityOverSystemBehavior = YES;
UIKeyCommand *escapeKey = [UIKeyCommand keyCommandWithInput:
UIKeyInputEscape modifierFlags: 0 action: @selector(escapeKey:)];
return [[NSArray alloc] initWithObjects: upArrow, downArrow,
leftArrow, rightArrow, escapeKey, nil];
}
}}}
Mapping the ` key to Escape has indeed been in place for a long time so
that when using either the virtual keyboard or a physical keyboard without
the Escape key it was possible to type Escape. I still think it could be a
good idea to add an option so that the user can enable our custom input
accessory bar even when using a physical keyboard. Many DOS games used
functions keys for example for loading or saving, so having access to
those can be required for some games. So I might look into that as well.
--
Ticket URL: <https://bugs.scummvm.org/ticket/12942#comment:8>
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