Accelerators - odd behavior
Kevin Rushforth
kevin.rushforth at oracle.com
Fri Sep 26 17:24:24 UTC 2014
Is this on a Mac or on Windows? I just ran your test case and I get two
runnables, which is what I would expect.
-- Kevin
Stephen F Northover wrote:
> I am only seeing the runnable fired once in FX 8u40.
>
> Steve
>
> Steps:
>
> 1) Run TestKeyCombination
> 2) Press Control+-
>
> Here is the test code:
>
> import javafx.application.Application;
> import javafx.scene.Group;
> import javafx.scene.Scene;
> import javafx.scene.control.Button;
> import javafx.scene.input.KeyCharacterCombination;
> import javafx.scene.input.KeyCode;
> import javafx.scene.input.KeyCodeCombination;
> import javafx.scene.input.KeyCombination;
> import javafx.stage.Stage;
>
> public class TestKeyCombination extends Application {
> public static void main(String[] args) {
> Application.launch(args);
> }
>
> @Override public void start(Stage stage) {
> stage.setTitle("Test KeyCombination");
> Scene scene = new Scene(new Group(), 600, 450);
> Button button1 = new Button();
> button1.setText("Click Me");
> stage.setScene(scene);
> stage.show();
>
> KeyCombination cmdMinus = new
> KeyCodeCombination(KeyCode.MINUS, KeyCombination.CONTROL_DOWN);
> KeyCombination cmdMinusFromCharacter = new
> KeyCharacterCombination("-", KeyCombination.CONTROL_DOWN);
> Runnable runnable = () -> System.out.println("HI");
> scene.getAccelerators().put(cmdMinus, runnable);
> scene.getAccelerators().put(cmdMinusFromCharacter, runnable);
> }
> }
>
>
> On 2014-09-26, 1:01 PM, Scott Palmer wrote:
>> KeyCombination cmdMinus = new Key*Code*Combination(KeyCode.MINUS,
>> KeyCombination.CONTROL_DOWN);
>> KeyCombination cmdMinusFromCharacter = new
>> Key*Character*Combination("-",
>> KeyCombination.CONTROL_DOWN);
>>
>> Using the above like this:
>> scene.getAccelerators().put(cmdMinus, runnable);
>> scene.getAccelerators().put(cmdMinusFromCharacter, runnable);
>>
>> Will result in the runnable being fired twice from the same keypress.
>>
>> I propose changing the accelerator processing logic so that only one
>> runnable gets called as the intention appears to be that a
>> KeyCombination
>> can only have one runnable associated with it, but the logic in Map
>> doesn't
>> see the above two KeyCombinations as the same key in the Map.
>>
>> Note: With the second combination above I really wanted something that
>> worked for both MINUS and SUBTRACT simultaneously - since they both type
>> the same Character and only one accelerator can be set on a MenuItem.
>>
>> Scott
>
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