在Eclipse 3.2核心中发现的一段诡异代码

位于org.eclipse.ui.workbenck.texteditor_3.2.0v20060605-1400.jar包的

org.eclipse.ui.texteditor.AbstractTextEditor.class中。

2569行开始

直观上感觉这段代码是想支持鼠标手势的

/* gestures commented out until proper solution (i.e. preference page) can be found

* for bug # 28417:

*

final Map gestureMap= new HashMap();

gestureMap.put("E", "org.eclipse.ui.navigate.forwardHistory");

gestureMap.put("N", "org.eclipse.ui.file.save");

gestureMap.put("NW", "org.eclipse.ui.file.saveAll");

gestureMap.put("S", "org.eclipse.ui.file.close");

gestureMap.put("SW", "org.eclipse.ui.file.closeAll");

gestureMap.put("W", "org.eclipse.ui.navigate.backwardHistory");

gestureMap.put("EN", "org.eclipse.ui.edit.copy");

gestureMap.put("ES", "org.eclipse.ui.edit.paste");

gestureMap.put("EW", "org.eclipse.ui.edit.cut");

Capture capture= Capture.create();

capture.setControl(styledText);

capture.addCaptureListener(new CaptureListener() {

public void gesture(Gesture gesture) {

if (gesture.getPen() == 3) {

String actionId= (String) gestureMap.get(Util.recognize(gesture.getPoints(), 20));

if (actionId != null) {

IKeyBindingService keyBindingService= getEditorSite().getKeyBindingService();

if (keyBindingService instanceof KeyBindingService) {

IAction action= ((KeyBindingService) keyBindingService).getAction(actionId);

if (action != null) {

if (action instanceof IUpdate)

((IUpdate) action).update();

if (action.isEnabled())

action.run();

}

}

return;

}

fTextContextMenu.setVisible(true);

}

};

});

*/