Undo Issues.

[ghost]

Hi Tomas,
When I undo a a step (applying a style or typing text), the strings come in correctly, but the styles do not. I am trying to figure out what styles it assigns to the text, but can't figure out a consistent pattern yet. Is this working as expected on your end?

Would this have to do with the Subscribe method?

[TomasMikula]

This probably has to do with plainTextChanges.subscribe(). Every undo and redo generates a text change and triggers whatever you do in subscribe (applying style in your case). So this is unlikely an undo issue.

[ghost]

Is there a way I can mute the subscription while doing an undo? Is there
like an undoListener? I guess I can do it by listening to the keyevents.

On Wed, Apr 30, 2014 at 9:03 AM, TomasMikula [email protected]:

Closed #51 #51.

—
Reply to this email directly or view it on GitHubhttps://github.com//issues/51
.

[TomasMikula]

I'm afraid listening to key events yourself is currently the only way. You can open an issue on UndoFX to be able to observe whether UndoManager is actively performing a change (undo or redo).

[TomasMikula]

In your subscription, you can now do the following test

if(area.getUndoManager().isPerformingAction()) {
    return;
} else {
    // handle the change
}

[ghost]

I'll give it a shot now

[ghost]

Great! works just fine!. To confirm, this is the code I have now.

richTextArea.plainTextChanges().subscribe(change -> {
        if (richTextArea.getUndoManager().isPerformingAction()) {
            return;
        } else {
            int from = change.getPosition();
            int length = change.getInserted().length();
            richTextArea.setStyle(from, from + length, styleToUse.get());
        }
    });