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16 package org.apache.cocoon.components.flow.javascript.fom;
17
18 import java.util.Iterator  ;
19 import java.util.List ;
20
21 import org.apache.avalon.framework.service.ServiceManager;
22 import org.apache.cocoon.components.flow.ContinuationsManager;
23 import org.apache.cocoon.components.flow.WebContinuation;
24 import org.mozilla.javascript.Context;
25 import org.mozilla.javascript.Function;
26 import org.mozilla.javascript.NativeArray;
27 import org.mozilla.javascript.Scriptable;
28 import org.mozilla.javascript.ScriptableObject;
29 import org.mozilla.javascript.Undefined;
30 import org.mozilla.javascript.Wrapper;
31 import org.mozilla.javascript.continuations.Continuation;
32
33
37 public class FOM_WebContinuation extends ScriptableObject {
38
39 WebContinuation wk;
40
41
42 static class UserObject {
43 boolean isBookmark;
44 PageLocalScopeImpl pageLocal;
45 }
46
47 static private boolean isBookmark(WebContinuation wk) {
48 UserObject userObj = (UserObject)wk.getUserObject();
49 if (userObj == null) {
50 return false;
51 }
52 return userObj.isBookmark;
53 }
54
55 public FOM_WebContinuation() {
56 this(null);
57 }
58
59
60 public FOM_WebContinuation(WebContinuation wk) {
61 this.wk = wk;
62 }
63
64 public static Object jsConstructor(Context cx, Object [] args,
68 Function ctorObj,
69 boolean inNewExpr)
70 throws Exception {
71 FOM_WebContinuation result = null;
72 if (args.length < 1) {
73 }
75 Continuation c = (Continuation)unwrap(args[0]);
76 FOM_WebContinuation parent = null;
77 if (args.length > 1) {
78 parent = (FOM_WebContinuation)args[1];
79 }
80 int timeToLive = 0;
81 if (args.length > 2) {
82 timeToLive =
83 (int)org.mozilla.javascript.Context.toNumber(args[2]);
84 }
85 WebContinuation wk;
86 Scriptable scope = getTopLevelScope(c);
87 FOM_Cocoon cocoon = (FOM_Cocoon)getProperty(scope, "cocoon");
88 ServiceManager componentManager = cocoon.getServiceManager();
89 ContinuationsManager contMgr = (ContinuationsManager)
90 componentManager.lookup(ContinuationsManager.ROLE);
91 wk = contMgr.createWebContinuation(c,
92 (parent == null ? null : parent.getWebContinuation()),
93 timeToLive,
94 cocoon.getInterpreterId(),
95 null);
96 result = new FOM_WebContinuation(wk);
97 result.setParentScope(getTopLevelScope(scope));
98 result.setPrototype(getClassPrototype(scope, result.getClassName()));
99 return result;
100 }
101
102 public String getClassName() {
103 return "FOM_WebContinuation";
104 }
105
106 public Object jsFunction_getAttribute(String name) {
107 return org.mozilla.javascript.Context.toObject(
108 wk.getAttribute(name),
109 getParentScope());
110 }
111
112 public void jsFunction_setAttribute(String name, Object value) {
113 wk.setAttribute(name, unwrap(value));
114 }
115
116 public void jsFunction_removeAttribute(String name) {
117 wk.removeAttribute(name);
118 }
119
120 public Object jsFunction_getAttributeNames() {
121 return org.mozilla.javascript.Context.toObject(
122 wk.getAttributeNames(),
123 getParentScope());
124 }
125
126 public String jsGet_id() {
127 return wk.getId();
128 }
129
130
131 public Continuation jsGet_continuation() {
132 return (Continuation)wk.getContinuation();
133 }
134
135 public FOM_WebContinuation jsFunction_getParent() {
136 WebContinuation parent = wk.getParentContinuation();
137 if (parent == null) {
138 return null;
139 }
140
141 FOM_WebContinuation pwk = new FOM_WebContinuation(parent);
142 pwk.setParentScope(getParentScope());
143 pwk.setPrototype(getClassPrototype(getParentScope(),
144 pwk.getClassName()));
145 return pwk;
146 }
147
148 public NativeArray jsFunction_getChildren() throws Exception {
149 List list = wk.getChildren();
150 NativeArray arr =
151 (NativeArray)org.mozilla.javascript.Context.getCurrentContext().newObject(getParentScope(),
152 "Array",
153 new Object []{new Integer (list.size())});
154 Iterator iter = list.iterator();
155 for (int i = 0; iter.hasNext(); i++) {
156 WebContinuation child = (WebContinuation)iter.next();
157 FOM_WebContinuation cwk = new FOM_WebContinuation(child);
158 cwk.setParentScope(getParentScope());
159 cwk.setPrototype(getClassPrototype(getParentScope(),
160 cwk.getClassName()));
161 arr.put(i, arr, cwk);
162 }
163 return arr;
164 }
165
166 public void jsFunction_invalidate() throws Exception {
167 ContinuationsManager contMgr = null;
168 FOM_Cocoon cocoon =
169 (FOM_Cocoon)getProperty(getTopLevelScope(this), "cocoon");
170 ServiceManager componentManager = cocoon.getServiceManager();
171 contMgr = (ContinuationsManager)
172 componentManager.lookup(ContinuationsManager.ROLE);
173 contMgr.invalidateWebContinuation(wk);
174 }
175
176 public void jsFunction_display() {
177 wk.display();
178 }
179
180 public WebContinuation getWebContinuation() {
181 return wk;
182 }
183
184 private static Object unwrap(Object obj) {
185 if (obj instanceof Wrapper) {
186 obj = ((Wrapper)obj).unwrap();
187 } else if (obj == Undefined.instance) {
188 obj = null;
189 }
190 return obj;
191 }
192
193 PageLocalScopeImpl getPageLocal() {
194 UserObject userObj = (UserObject)wk.getUserObject();
195 if (userObj == null) return null;
196 return userObj.pageLocal;
197 }
198
199 void setPageLocal(PageLocalScopeImpl pageLocal) {
200 UserObject userObj = (UserObject)wk.getUserObject();
201 if (userObj == null) {
202 userObj = new UserObject();
203 wk.setUserObject(userObj);
204 }
205 userObj.pageLocal = pageLocal;
206 }
207
208 public void jsFunction_setBookmark(boolean value) {
209 UserObject userObj = (UserObject)wk.getUserObject();
210 if (userObj == null) {
211 userObj = new UserObject();
212 wk.setUserObject(userObj);
213 }
214 userObj.isBookmark = value;
215 }
216
217 public boolean jsGet_bookmark() {
218 return isBookmark(wk);
219 }
220
221 public boolean jsFunction_isBookmark() {
222 return isBookmark(wk);
223 }
224
225 public FOM_WebContinuation jsGet_previousBookmark() {
226 WebContinuation c = wk.getParentContinuation();
227 if (c == null) {
228 return null;
229 }
230
231 if (!isBookmark(wk) && isBookmark(c)) {
235 c = c.getParentContinuation();
236 }
237 while (c != null && !isBookmark(c)) {
238 c = c.getParentContinuation();
239 }
240 if (c == null) {
241 return null;
242 }
243
244 FOM_WebContinuation pwk = new FOM_WebContinuation(c);
245 pwk.setParentScope(getParentScope());
246 pwk.setPrototype(getClassPrototype(getParentScope(), pwk.getClassName()));
247 return pwk;
248 }
249
250
253 public String toString() {
254 return "WC" + wk.getId();
255 }
256 }
257 |
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