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14 package org.wings.plaf.css;
15
16 import org.wings.SComponent;
17 import org.wings.script.JavaScriptListener;
18 import org.wings.script.ScriptListener;
19 import org.apache.commons.logging.Log;
20 import org.apache.commons.logging.LogFactory;
21
22 import javax.swing.*;
23 import java.awt.event.InputEvent  ;
24 import java.awt.event.KeyEvent ;
25
26
30 public class InputMapScriptListener
31 extends JavaScriptListener {
32 private final static transient Log log = LogFactory.getLog(InputMapScriptListener.class);
33
34 public InputMapScriptListener(String event, String code, String script) {
35 super(event, code, script);
36 }
37
38 public static void install(SComponent component) {
39 ScriptListener[] scriptListeners = component.getScriptListeners();
40
41 for (int i = 0; i < scriptListeners.length; i++) {
42 ScriptListener scriptListener = scriptListeners[i];
43 if (scriptListener instanceof InputMapScriptListener)
44 component.removeScriptListener(scriptListener);
45 }
46
47 InputMap inputMap = component.getInputMap();
48
49 StringBuffer pressed = new StringBuffer ();
50 StringBuffer typed = new StringBuffer ();
51 StringBuffer released = new StringBuffer ();
52 KeyStroke[] keyStrokes = inputMap.keys();
53
54 for (int i = 0; i < keyStrokes.length; i++) {
55 KeyStroke keyStroke = keyStrokes[i];
56 Object binding = inputMap.get(keyStroke);
57
58
62
63 switch (keyStroke.getKeyEventType()) {
64 case KeyEvent.KEY_PRESSED:
65 writeMatch(pressed, keyStroke);
66 writeRequest(pressed, binding);
67 break;
68 case KeyEvent.KEY_TYPED:
69 writeMatch(typed, keyStroke);
70 writeRequest(typed, binding);
71 log.debug("typed binding = " + binding);
72 break;
73 case KeyEvent.KEY_RELEASED:
74 writeMatch(released, keyStroke);
75 writeRequest(released, binding);
76 log.debug("released binding = " + binding);
77 break;
78 }
79 }
80
81 if (pressed.length() > 0)
82 component.addScriptListener(new InputMapScriptListener("onkeydown", "return pressed_" + component.getName() + "(event)",
83 "function pressed_" + component.getName() + "(event) {\n " +
84 "event = getEvent(event);\n " +
85 pressed.toString() + " return true;\n}\n"));
86 if (typed.length() > 0)
87 component.addScriptListener(new InputMapScriptListener("onkeypress", "return typed_" + component.getName() + "(event)",
88 "function typed_" + component.getName() + "(event) {\n " +
89 "event = getEvent(event);\n " +
90 typed.toString() + " return true;\n}\n"));
91 if (released.length() > 0)
92 component.addScriptListener(new InputMapScriptListener("onkeyup", "return released_" + component.getName() + "(event)",
93 "function released_" + component.getName() + "(event) {\n" +
94 "event = getEvent(event);\n " +
95 released.toString() + " return true;\n}\n"));
96 }
97
98 private static void writeMatch(StringBuffer buffer, KeyStroke keyStroke) {
99 buffer.append("if (event.keyCode == " + keyStroke.getKeyCode());
100 if ((keyStroke.getModifiers() & InputEvent.SHIFT_DOWN_MASK) != 0)
101 buffer.append(" && event.shiftKey");
102 else
103 buffer.append(" && !event.shiftKey");
104 if ((keyStroke.getModifiers() & InputEvent.CTRL_DOWN_MASK) != 0)
105 buffer.append(" && event.ctrlKey");
106 else
107 buffer.append(" && !event.ctrlKey");
108 if ((keyStroke.getModifiers() & InputEvent.ALT_DOWN_MASK) != 0)
109 buffer.append(" && event.altKey");
110 else
111 buffer.append(" && !event.altKey");
112 buffer.append(")");
113 }
114
115 private static void writeRequest(StringBuffer buffer, Object binding) {
116 buffer.append(" { sendEvent(event, \"").append(binding).append("\"); return false; }\n");
117 }
118 }
119 |
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