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43 package org.netbeans.html.ko4j;
45 import java.io.ByteArrayOutputStream;
46 import java.io.Closeable;
47 import java.io.IOException;
48 import java.io.InputStream;
49 import java.io.InputStreamReader;
50 import java.io.Reader;
52 import java.util.logging.Logger;
53 import org.apidesign.html.boot.spi.Fn;
54 import org.apidesign.html.json.spi.FunctionBinding;
55 import org.apidesign.html.json.spi.JSONCall;
56 import org.apidesign.html.json.spi.PropertyBinding;
57 import org.apidesign.html.json.spi.Technology;
58 import org.apidesign.html.json.spi.Transfer;
59 import org.apidesign.html.json.spi.WSTransfer;
61 /** This is an implementation package - just
62 * include its JAR on classpath and use official {@link Context} API
63 * to access the functionality.
66 * @author Jaroslav Tulach
69 implements Technology.BatchInit<Object>, Technology.ValueMutated<Object>,
70 Transfer, WSTransfer<LoadWS> {
71 static final Logger LOG = Logger.getLogger(FXContext.class.getName());
72 private Object[] jsObjects;
75 public FXContext(Fn.Presenter browserContext) {
79 public Object wrapModel(Object model, PropertyBinding[] propArr, FunctionBinding[] funcArr) {
80 String[] propNames = new String[propArr.length];
81 boolean[] propReadOnly = new boolean[propArr.length];
82 Object[] propValues = new Object[propArr.length];
83 for (int i = 0; i < propNames.length; i++) {
84 propNames[i] = propArr[i].getPropertyName();
85 propReadOnly[i] = propArr[i].isReadOnly();
86 propValues[i] = propArr[i].getValue();
88 String[] funcNames = new String[funcArr.length];
89 for (int i = 0; i < funcNames.length; i++) {
90 funcNames[i] = funcArr[i].getFunctionName();
92 Object ret = getJSObject();
93 Knockout.wrapModel(ret, model,
94 propNames, propReadOnly, propValues, propArr,
100 private Object getJSObject() {
102 if (jsObjects != null && jsIndex < (len = jsObjects.length)) {
103 return jsObjects[jsIndex++];
105 jsObjects = Knockout.allocJS(len * 2);
111 public Object wrapModel(Object model) {
112 throw new UnsupportedOperationException();
116 public void bind(PropertyBinding b, Object model, Object data) {
117 throw new UnsupportedOperationException();
121 public void valueHasMutated(Object data, String propertyName) {
122 Knockout.valueHasMutated(data, propertyName, null, null);
126 public void valueHasMutated(Object data, String propertyName, Object oldValue, Object newValue) {
127 Knockout.valueHasMutated(data, propertyName, oldValue, newValue);
131 public void expose(FunctionBinding fb, Object model, Object d) {
132 throw new UnsupportedOperationException();
136 public void applyBindings(Object data) {
137 Knockout.applyBindings(data);
141 public Object wrapArray(Object[] arr) {
146 public void extract(Object obj, String[] props, Object[] values) {
147 LoadJSON.extractJSON(obj, props, values);
151 public void loadJSON(final JSONCall call) {
152 if (call.isJSONP()) {
153 String me = LoadJSON.createJSONP(call);
154 LoadJSON.loadJSONP(call.composeURL(me), me);
157 if (call.isDoOutput()) {
159 ByteArrayOutputStream bos = new ByteArrayOutputStream();
161 data = new String(bos.toByteArray(), "UTF-8");
162 } catch (IOException ex) {
163 call.notifyError(ex);
166 LoadJSON.loadJSON(call.composeURL(null), call, call.getMethod(), data);
171 public <M> M toModel(Class<M> modelClass, Object data) {
172 return modelClass.cast(Knockout.toModel(data));
176 public Object toJSON(InputStream is) throws IOException {
177 StringBuilder sb = new StringBuilder();
178 InputStreamReader r = new InputStreamReader(is);
186 return LoadJSON.parse(sb.toString());
190 public void runSafe(final Runnable r) {
191 LOG.warning("Technology.runSafe has been deprecated. Use BrwsrCtx.execute!");
196 public LoadWS open(String url, JSONCall onReply) {
197 return new LoadWS(onReply, url);
201 public void send(LoadWS socket, JSONCall data) {
206 public void close(LoadWS socket) {
210 boolean areWebSocketsSupported() {
211 return Knockout.areWebSocketsSupported();
214 private static final class TrueFn extends Fn implements Fn.Presenter {
216 public Object invoke(Object thiz, Object... args) throws Exception {
221 public Fn defineFn(String code, String... names) {
226 public void displayPage(URL page, Runnable onPageLoad) {
230 public void loadScript(Reader code) throws Exception {