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1
2
57
58 package dom.events;
59
60 import org.w3c.dom.Node  ;
61 import org.w3c.dom.events.Event ;
62 import org.w3c.dom.events.EventListener ;
63 import org.w3c.dom.events.MutationEvent ;
64
65 class EventReporter implements EventListener
66 {
67 boolean silent=false; int count=0;
69 String [] phasename={"?","BUBBLING","CAPTURING","AT_TARGET","?"};
70
71 public void on()
72 {
73 System.out.println("\nEventReporter awakened:\n");
74 silent=false;
75 }
76 public void off()
77 {
78 System.out.println("\nEventReporter muted\n");
79 silent=true;
80 }
81
82 public void handleEvent(Event evt)
83 {
84 ++count;
85 if(silent)
86 return;
87
88 System.out.print("EVT "+count+": '"+
89 evt.getType()+
90 "' listener '"+((Node )evt.getCurrentTarget()).getNodeName()+
91 "' target '"+((Node )evt.getTarget()).getNodeName()+
92 "' while "+phasename[evt.getEventPhase()] +
93 "... ");
94 if(evt.getBubbles()) System.out.print("will bubble");
95 if(evt.getCancelable()) System.out.print("can cancel");
96 System.out.print("\n");
97 if(evt instanceof MutationEvent )
98 {
99 MutationEvent me=(MutationEvent )evt;
100 System.out.print("\t");
101 if(me.getRelatedNode()!=null)
102 System.out.print(" relatedNode='"+me.getRelatedNode()+"'");
103 if(me.getAttrName()!=null)
104 System.out.print(" attrName='"+me.getAttrName()+"'");
105 System.out.print("\n");
106 if(me.getPrevValue()!=null)
107 System.out.println("\t prevValue='"+me.getPrevValue()+"'");
108 if(me.getNewValue()!=null)
109 System.out.println("\t newValue='"+me.getNewValue()+"'");
110 }
111 }
112 }
113 |
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