On Sat, 23 Jan 2021 15:40:04 GMT, Kevin Rushforth <k...@openjdk.org> wrote:
> The JavaFX API does not provide a way to get the state of CAPS LOCK or NUM > LOCK on the keyboard. Being able to read the lock state would allow an > application to inform the user that caps lock was enabled for passwords or > other usages where the keyboard input might not be echoed. It would also > allow an application to do spell checking / auto-correction that might > ordinarily be skipped when typing all upper-case letters. > > We need an equivalent JavaFX API to the existing AWT > `java.awt.ToolKit::getLockingKeyState` method. A natural place to put this in > JavaFX is in the `javafx.application.Platform` class, so we propose to create > a new `Platform::isKeyLocked` method, which will take a `KeyCode` -- either > `CAPS` or `NUM_LOCK` -- and return an `Optional<Boolean>` indicating whether > or not that key is in the locked or "on" state. If we can't read the key > state on a particular platform, we will return `Optional.empty()`, rather > than throwing a runtime exception as AWT does. > > I have provided both an automated Robot test and a manual test. The latter is > needed primarily because we can't set the CAPS lock on Mac using Robot, but > also because we want way to test the case where the user has enabled CAPS > lock before the program starts. modules/javafx.graphics/src/main/java/javafx/application/Platform.java line 336: > 334: /** > 335: * Returns a flag indicating whether the key corresponding to {@code > keyCode} > 336: * is in the locked or "on" state. I would write "locked, or "on", state" or "locked (or "on") state" because in the current form it can be understood as 2 different conditions. ------------- PR: https://git.openjdk.java.net/jfx/pull/385