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CTRL+Z undo redo problem [message #1863590]

Wed, 14 February 2024 07:37

seokho yang

Messages: 3
Registered: February 2024

Junior Member

I developed GEF-based and EMF-based editors, which worked without any issues up to Eclipse 2019. However, in later versions of Eclipse, simply installing the plugin without running the custom editor, then opening two files in the Java editor, and making modifications to each file, when undoing changes in the first editor using Ctrl+Z, it affects the content of the other editor's file. How can I fix this issue?

Attachment: XamEditorActionBarContributor.java
(Size: 7.29KB, Downloaded 20 times)

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Re: CTRL+Z undo redo problem [message #1863596 is a reply to message #1863590]

Wed, 14 February 2024 14:49

Nitin Dahyabhai

Messages: 4435
Registered: July 2009

Senior Member

It sounds like you are not doing anything with the setActiveEditor() method.

_
Nitin Dahyabhai
Eclipse Web Tools Platform

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Re: CTRL+Z undo redo problem [message #1863604 is a reply to message #1863596]

Thu, 15 February 2024 02:16

seokho yang

Messages: 3
Registered: February 2024

Junior Member

I appreciate your response. However, I added the following code, but the same issue persists:

@Override
public void setActiveEditor(IEditorPart targetEditor) {
super.setActiveEditor(targetEditor);

if (targetEditor instanceof XamEditor) {

XamEditor editor = (XamEditor) targetEditor;

IActionBars bars = getActionBars();
bars.clearGlobalActionHandlers();
bars.updateActionBars();

bars.setGlobalActionHandler(ActionFactory.DELETE.getId(), editor.getEditorActionRegistry().getAction(ActionFactory.DELETE.getId()));
bars.setGlobalActionHandler(ActionFactory.UNDO.getId(), editor.getEditorActionRegistry().getAction(ActionFactory.UNDO.getId()));
bars.setGlobalActionHandler(ActionFactory.REDO.getId(), editor.getEditorActionRegistry().getAction(ActionFactory.REDO.getId()));

} else {

IActionBars bars = getActionBars();
bars.clearGlobalActionHandlers();
bars.updateActionBars();
}
}

Additionally, the issue occurs only in the Java editor. For example, in other editors like the text editor, undo works correctly.
The symptom is that when I have two Java editors open, if I perform a ctrl+z action in the first editor opened after making changes in both, the undo action affects the second editor opened.

Please assist

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Re: CTRL+Z undo redo problem [message #1863610 is a reply to message #1863604]

Thu, 15 February 2024 14:25

Ed Merks

Messages: 33142
Registered: July 2009

Senior Member

Does the problem only happen after you open your editor? Does it continue to be a problem after you close your editor?

Ed Merks
Professional Support: https://www.macromodeling.com/

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Re: CTRL+Z undo redo problem [message #1863613 is a reply to message #1863610]

Fri, 16 February 2024 00:52

seokho yang

Messages: 3
Registered: February 2024

Junior Member

After installing the plugin and opening two Java editors for testing, the same issue occurs. The situation reproduces even without running the custom editor.

In the Java editor, the undo menu in the right-click context menu works correctly.

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Re: CTRL+Z undo redo problem [message #1863616 is a reply to message #1863613]

Fri, 16 February 2024 07:20

Ed Merks

Messages: 33142
Registered: July 2009

Senior Member

So simply installing your plugin but not actually using anything in it causes a problem. Such interaction is kind of inexplicable to me. I'm not sure how to answer questions about such a strange thing. Does your plugin.xml register key bindings? Does it do anything else that might be relevant? Special startup actions? Add listeners on startup?

Ed Merks
Professional Support: https://www.macromodeling.com/

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