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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 net.java.html.js.JavaScriptBody;
54 import org.apidesign.html.boot.spi.Fn;
55 import org.apidesign.html.json.spi.FunctionBinding;
56 import org.apidesign.html.json.spi.JSONCall;
57 import org.apidesign.html.json.spi.PropertyBinding;
58 import org.apidesign.html.json.spi.Technology;
59 import org.apidesign.html.json.spi.Transfer;
60 import org.apidesign.html.json.spi.WSTransfer;
62 /** This is an implementation package - just
63 * include its JAR on classpath and use official {@link Context} API
64 * to access the functionality.
67 * @author Jaroslav Tulach <jtulach@netbeans.org>
70 implements Technology.BatchInit<Object>, Technology.ValueMutated<Object>,
71 Transfer, WSTransfer<LoadWS> {
72 static final Logger LOG = Logger.getLogger(FXContext.class.getName());
73 private Object[] jsObjects;
76 public FXContext(Fn.Presenter browserContext) {
79 @JavaScriptBody(args = {}, body = "if (window.WebSocket) return true; else return false;")
80 final boolean areWebSocketsSupported() {
85 public Object wrapModel(Object model, PropertyBinding[] propArr, FunctionBinding[] funcArr) {
86 String[] propNames = new String[propArr.length];
87 boolean[] propReadOnly = new boolean[propArr.length];
88 Object[] propValues = new Object[propArr.length];
89 for (int i = 0; i < propNames.length; i++) {
90 propNames[i] = propArr[i].getPropertyName();
91 propReadOnly[i] = propArr[i].isReadOnly();
92 propValues[i] = propArr[i].getValue();
94 String[] funcNames = new String[funcArr.length];
95 for (int i = 0; i < funcNames.length; i++) {
96 funcNames[i] = funcArr[i].getFunctionName();
98 Object ret = getJSObject();
99 Knockout.wrapModel(ret, model,
100 propNames, propReadOnly, propValues, propArr,
106 private Object getJSObject() {
108 if (jsObjects != null && jsIndex < (len = jsObjects.length)) {
109 return jsObjects[jsIndex++];
111 jsObjects = Knockout.allocJS(len * 2);
117 public Object wrapModel(Object model) {
118 throw new UnsupportedOperationException();
122 public void bind(PropertyBinding b, Object model, Object data) {
123 throw new UnsupportedOperationException();
127 public void valueHasMutated(Object data, String propertyName) {
128 Knockout.valueHasMutated(data, propertyName, null, null);
132 public void valueHasMutated(Object data, String propertyName, Object oldValue, Object newValue) {
133 Knockout.valueHasMutated(data, propertyName, oldValue, newValue);
137 public void expose(FunctionBinding fb, Object model, Object d) {
138 throw new UnsupportedOperationException();
142 public void applyBindings(Object data) {
143 Knockout.applyBindings(data);
147 public Object wrapArray(Object[] arr) {
152 public void extract(Object obj, String[] props, Object[] values) {
153 LoadJSON.extractJSON(obj, props, values);
157 public void loadJSON(final JSONCall call) {
158 if (call.isJSONP()) {
159 String me = LoadJSON.createJSONP(call);
160 LoadJSON.loadJSONP(call.composeURL(me), me);
163 if (call.isDoOutput()) {
165 ByteArrayOutputStream bos = new ByteArrayOutputStream();
167 data = new String(bos.toByteArray(), "UTF-8");
168 } catch (IOException ex) {
169 call.notifyError(ex);
172 LoadJSON.loadJSON(call.composeURL(null), call, call.getMethod(), data);
177 public <M> M toModel(Class<M> modelClass, Object data) {
178 return modelClass.cast(Knockout.toModel(data));
182 public Object toJSON(InputStream is) throws IOException {
183 StringBuilder sb = new StringBuilder();
184 InputStreamReader r = new InputStreamReader(is);
192 return LoadJSON.parse(sb.toString());
196 public void runSafe(final Runnable r) {
197 LOG.warning("Technology.runSafe has been deprecated. Use BrwsrCtx.execute!");
202 public LoadWS open(String url, JSONCall onReply) {
203 return new LoadWS(onReply, url);
207 public void send(LoadWS socket, JSONCall data) {
212 public void close(LoadWS socket) {
216 private static final class TrueFn extends Fn implements Fn.Presenter {
218 public Object invoke(Object thiz, Object... args) throws Exception {
223 public Fn defineFn(String code, String... names) {
228 public void displayPage(URL page, Runnable onPageLoad) {
232 public void loadScript(Reader code) throws Exception {