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/**
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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*
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* Copyright 2013-2014 Oracle and/or its affiliates. All rights reserved.
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*
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* Oracle and Java are registered trademarks of Oracle and/or its affiliates.
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* Other names may be trademarks of their respective owners.
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*
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* The contents of this file are subject to the terms of either the GNU
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* General Public License Version 2 only ("GPL") or the Common
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* Development and Distribution License("CDDL") (collectively, the
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* "License"). You may not use this file except in compliance with the
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* License. You can obtain a copy of the License at
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* http://www.netbeans.org/cddl-gplv2.html
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* or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
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* specific language governing permissions and limitations under the
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* License. When distributing the software, include this License Header
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* Notice in each file and include the License file at
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* nbbuild/licenses/CDDL-GPL-2-CP. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the GPL Version 2 section of the License file that
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* accompanied this code. If applicable, add the following below the
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* License Header, with the fields enclosed by brackets [] replaced by
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* your own identifying information:
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* "Portions Copyrighted [year] [name of copyright owner]"
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*
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* Contributor(s):
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*
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* The Original Software is NetBeans. The Initial Developer of the Original
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* Software is Oracle. Portions Copyright 2013-2014 Oracle. All Rights Reserved.
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*
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* If you wish your version of this file to be governed by only the CDDL
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* or only the GPL Version 2, indicate your decision by adding
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* "[Contributor] elects to include this software in this distribution
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* under the [CDDL or GPL Version 2] license." If you do not indicate a
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* single choice of license, a recipient has the option to distribute
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* your version of this file under either the CDDL, the GPL Version 2 or
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* to extend the choice of license to its licensees as provided above.
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* However, if you add GPL Version 2 code and therefore, elected the GPL
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* Version 2 license, then the option applies only if the new code is
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* made subject to such option by the copyright holder.
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*/
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package org.netbeans.html.ko4j;
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import net.java.html.js.JavaScriptBody;
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import net.java.html.js.JavaScriptResource;
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import net.java.html.json.Model;
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import org.netbeans.html.json.spi.FunctionBinding;
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import org.netbeans.html.json.spi.PropertyBinding;
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/** This is an implementation package - just
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* include its JAR on classpath and use official {@link Context} API
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* to access the functionality.
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* <p>
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* Provides binding between {@link Model models} and knockout.js running
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* inside a JavaFX WebView.
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*
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* @author Jaroslav Tulach
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*/
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@JavaScriptResource("knockout-3.2.0.debug.js")
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final class Knockout {
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@JavaScriptBody(args = { "model", "prop", "oldValue", "newValue" },
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wait4js = false,
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body =
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"if (model) {\n"
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+ " var koProp = model[prop];\n"
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+ " if (koProp && koProp['valueHasMutated']) {\n"
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+ " if ((oldValue !== null || newValue !== null)) {\n"
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+ " koProp['valueHasMutated'](newValue);\n"
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+ " } else if (koProp['valueHasMutated']) {\n"
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+ " koProp['valueHasMutated']();\n"
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+ " }\n"
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+ " }\n"
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+ "}\n"
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)
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public native static void valueHasMutated(
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Object model, String prop, Object oldValue, Object newValue
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);
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@JavaScriptBody(args = { "bindings" }, wait4js = false, body =
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"ko.cleanNode(window.document.body);\n" +
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"ko.applyBindings(bindings);\n"
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)
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native static void applyBindings(Object bindings);
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@JavaScriptBody(args = { "cnt" }, body =
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"var arr = new Array(cnt);\n" +
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"for (var i = 0; i < cnt; i++) arr[i] = new Object();\n" +
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"return arr;\n"
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)
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native static Object[] allocJS(int cnt);
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@JavaScriptBody(
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javacall = true,
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wait4js = false,
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args = {"ret", "model", "propNames", "propReadOnly", "propValues", "propArr", "funcNames", "funcArr"},
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body =
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"ret['ko-fx.model'] = model;\n"
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+ "function koComputed(name, readOnly, value, prop) {\n"
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+ " var trigger = ko.observable().extend({notify:'always'});"
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+ " function realGetter() {\n"
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+ " try {\n"
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+ " var v = prop.@org.netbeans.html.json.spi.PropertyBinding::getValue()();\n"
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+ " return v;\n"
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+ " } catch (e) {\n"
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+ " alert(\"Cannot call getValue on \" + model + \" prop: \" + name + \" error: \" + e);\n"
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+ " }\n"
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+ " }\n"
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+ " var activeGetter = function() { return value; };\n"
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+ " var bnd = {\n"
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+ " 'read': function() {\n"
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+ " trigger();\n"
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+ " var r = activeGetter();\n"
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+ " activeGetter = realGetter;\n"
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+ " if (r) try { var br = r.valueOf(); } catch (err) {}\n"
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+ " return br === undefined ? r: br;\n"
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+ " },\n"
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+ " 'owner': ret\n"
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+ " };\n"
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+ " if (!readOnly) {\n"
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+ " bnd['write'] = function(val) {\n"
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+ " var model = val['ko-fx.model'];\n"
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+ " prop.@org.netbeans.html.json.spi.PropertyBinding::setValue(Ljava/lang/Object;)(model ? model : val);\n"
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+ " };\n"
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+ " };\n"
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+ " var cmpt = ko['computed'](bnd);\n"
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+ " cmpt['valueHasMutated'] = function(val) {\n"
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+ " if (arguments.length === 1) activeGetter = function() { return val; };\n"
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+ " trigger.valueHasMutated();\n"
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+ " };\n"
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+ " ret[name] = cmpt;\n"
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+ "}\n"
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+ "for (var i = 0; i < propNames.length; i++) {\n"
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+ " koComputed(propNames[i], propReadOnly[i], propValues[i], propArr[i]);\n"
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+ "}\n"
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+ "function koExpose(name, func) {\n"
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+ " ret[name] = function(data, ev) {\n"
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+ " func.@org.netbeans.html.json.spi.FunctionBinding::call(Ljava/lang/Object;Ljava/lang/Object;)(data, ev);\n"
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+ " };\n"
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+ "}\n"
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+ "for (var i = 0; i < funcNames.length; i++) {\n"
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+ " koExpose(funcNames[i], funcArr[i]);\n"
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+ "}\n"
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)
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static native void wrapModel(
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Object ret, Object model,
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String[] propNames, boolean[] propReadOnly, Object propValues, PropertyBinding[] propArr,
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String[] funcNames, FunctionBinding[] funcArr
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);
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@JavaScriptBody(args = { "o" }, body = "return o['ko-fx.model'] ? o['ko-fx.model'] : o;")
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private static native Object toModelImpl(Object wrapper);
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static Object toModel(Object wrapper) {
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return toModelImpl(wrapper);
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}
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@JavaScriptBody(args = {}, body = "if (window.WebSocket) return true; else return false;")
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static final boolean areWebSocketsSupported() {
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return false;
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}
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}
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