Example usage for com.intellij.openapi.command.undo UndoManager isUndoAvailable

Introduction

In this page you can find the example usage for com.intellij.openapi.command.undo UndoManager isUndoAvailable.

Prototype

public abstract boolean isUndoAvailable(@Nullable FileEditor editor);

Source Link

Usage

From source file:com.intellij.ide.actions.UndoAction.java

License:Apache License

@Override
protected boolean isAvailable(FileEditor editor, UndoManager undoManager) {
    return undoManager.isUndoAvailable(editor);
}

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From source file:com.maddyhome.idea.vim.helper.UndoRedoHelper.java

License:Open Source License

public static boolean undo(@NotNull final DataContext context) {
    final Project project = PlatformDataKeys.PROJECT.getData(context);
    final FileEditor fileEditor = PlatformDataKeys.FILE_EDITOR.getData(context);
    final com.intellij.openapi.command.undo.UndoManager undoManager = com.intellij.openapi.command.undo.UndoManager
            .getInstance(project);/*from w ww.j a  v  a2s.  c o m*/
    if (fileEditor != null && undoManager.isUndoAvailable(fileEditor)) {
        undoManager.undo(fileEditor);
        return true;
    }
    return false;
}

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