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1
21 package org.lobobrowser.js;
22
23 import java.util.WeakHashMap  ;
24 import java.lang.ref.*;
25 import org.mozilla.javascript.*;
26 import org.lobobrowser.util.*;
27
28 public class JavaScript {
29 private static JavaScript instance = new JavaScript();
30 private final WeakHashMap javaObjectToWrapper = new WeakHashMap ();
34
35 public static JavaScript getInstance() {
36 return instance;
37 }
38
39
45 public Object getJavascriptObject(Object raw, Scriptable scope) {
46 if(raw instanceof String || raw instanceof Scriptable) {
47 return raw;
48 }
49 else if(raw == null) {
50 return null;
51 }
52 else if(raw.getClass().isPrimitive()) {
53 return raw;
54 }
55 else if(raw instanceof ScriptableDelegate) {
56 synchronized(this) {
60 Object javascriptObject = ((ScriptableDelegate) raw).getScriptable();
61 if(javascriptObject == null) {
62 JavaObjectWrapper jow = new JavaObjectWrapper(JavaClassWrapperFactory.getInstance().getClassWrapper(raw.getClass()), raw);
63 javascriptObject = jow;
64 jow.setParentScope(scope);
65 ((ScriptableDelegate) raw).setScriptable(jow);
66 }
67 return javascriptObject;
68 }
69 }
70 else if(Objects.isBoxClass(raw.getClass())) {
71 return raw;
72 }
73 else {
74 synchronized(this.javaObjectToWrapper) {
75 WeakReference valueRef = (WeakReference) this.javaObjectToWrapper.get(raw);
78 JavaObjectWrapper jow = null;
79 if(valueRef != null) {
80 jow = (JavaObjectWrapper) valueRef.get();
81 }
82 if(jow == null) {
83 Class javaClass = raw.getClass();
84 JavaClassWrapper wrapper = JavaClassWrapperFactory.getInstance().getClassWrapper(javaClass);
85 jow = new JavaObjectWrapper(wrapper, raw);
86 jow.setParentScope(scope);
87 this.javaObjectToWrapper.put(raw, new WeakReference(jow));
88 }
89 return jow;
90 }
91 }
92 }
93
94 public Object getJavaObject(Object javascriptObject, Class type) {
95 if(javascriptObject instanceof JavaObjectWrapper) {
96 return ((JavaObjectWrapper) javascriptObject).getJavaObject();
97 }
98 else if(javascriptObject == null) {
99 return null;
100 }
101 else if(type == String .class) {
102 if(javascriptObject instanceof String ) {
103 return javascriptObject;
104 }
105 else if(javascriptObject instanceof Double ) {
106 String text = String.valueOf(javascriptObject);
107 if(text.endsWith(".0")) {
108 return text.substring(0, text.length() - 2);
109 }
110 else {
111 return text;
112 }
113 }
114 else {
118 return String.valueOf(javascriptObject);
119 }
120 }
121 else if(type == int.class || type == Integer .class) {
122 if(javascriptObject instanceof Double ) {
123 return new Integer (((Double ) javascriptObject).intValue());
124 }
125 else if(javascriptObject instanceof Integer ) {
126 return javascriptObject;
127 }
128 else if(javascriptObject instanceof String ) {
129 return Integer.valueOf((String ) javascriptObject);
130 }
131 else if(javascriptObject instanceof Short ) {
132 return new Integer (((Short ) javascriptObject).shortValue());
133 }
134 else if(javascriptObject instanceof Long ) {
135 return new Integer (((Long ) javascriptObject).intValue());
136 }
137 else if(javascriptObject instanceof Float ) {
138 return new Integer (((Float ) javascriptObject).intValue());
139 }
140 else {
141 return javascriptObject;
142 }
143 }
144 else {
145 return javascriptObject;
146 }
147 }
148 }
149 |
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