MouseShortcut (@NotNull MouseEvent e) { int button = MouseShortcut.getButton(e); int modifiers = e.getModifiersEx(); if (button == MouseEvent.NOBUTTON && e.getID() == MouseEvent.MOUSE_DRAGGED) { // mouse drag events don't have button field set due to some reason if ((modifiers & InputEvent.BUTTON1_DOWN_MASK) != 0) { button = MouseEvent.BUTTON1; } else if ((modifiers & InputEvent.BUTTON2_DOWN_MASK) != 0) { button = MouseEvent.BUTTON2; } } return new MouseShortcut(button, modifiers, 1); }