Intellij IDEA Cannot Undo

Question

I am working on a project at Intellij IDEA. I moved refactored some packages. However I want to undo my changes. When I click revert button it says

Cannot Undo

and shows a list under that:

Following files affected by this action have been already changed

How can I revert my changes because I lost some packages and classes. Does Intellij IDEA keeps them inside a temporary folder?

PS: I use open jdk 1.6.0 on a 64 bit Ubuntu computer.

Answer 1

As I googled to here several times when I developing IntelliJ plugin emacsIDEAs, I will leave my solution here for someone who need it.

usually change to document need be done in runWriteAction, and for undo changes to document need called in CommandProcessor.getInstance().executeCommand

so the solution is: call executeCommand in runWriteAction, then the changes will be undoable.

protected Runnable getRunnableWrapper(final Runnable runnable) {
    return new Runnable() {
        @Override
        public void run() {
            CommandProcessor.getInstance().executeCommand(_editor.getProject(), runnable, "cut", ActionGroup.EMPTY_GROUP);
        }
    };
}

final Runnable runnable = new Runnable() {
    @Override
    public void run() {
        selectJumpArea(jumpTargetOffset);
        _editor.getSelectionModel().copySelectionToClipboard();
        EditorModificationUtil.deleteSelectedText(_editor);
        _editor.getSelectionModel().removeSelection();
    }
};

ApplicationManager.getApplication().runWriteAction(getRunnableWrapper(runnable));

code repo: https://github.com/whunmr/emacsIDEAs

Answer 2

Undo it through VCS --> Local History --> Show History.

Answer 3

IntelliJ IDEA has a great feature called as local history. I could revert my changes. There is a video gives a detailed example for it:

http://www.jetbrains.com/idea/training/demos/local_history.html

You can get more information from here: http://jetbrains.com/help/idea/2016.1/using-local-history.html