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43 package org.netbeans.html.ko4j;
45 import net.java.html.js.JavaScriptBody;
46 import org.netbeans.html.json.spi.JSONCall;
50 * @author Jaroslav Tulach
52 final class LoadJSON {
55 static String createJSONP(JSONCall whenDone) {
56 int h = whenDone.hashCode();
59 name = "jsonp" + Integer.toHexString(h);
60 if (defineIfUnused(name, whenDone)) {
67 @JavaScriptBody(args = {"name", "done"}, javacall = true, body
68 = "if (window[name]) return false;\n "
69 + "window[name] = function(data) {\n "
70 + " delete window[name];\n"
71 + " var el = window.document.getElementById(name);\n"
72 + " el.parentNode.removeChild(el);\n"
73 + " done.@org.netbeans.html.json.spi.JSONCall::notifySuccess(Ljava/lang/Object;)(data);\n"
77 private static boolean defineIfUnused(String name, JSONCall done) {
81 @JavaScriptBody(args = {"s"}, body = "return eval('(' + s + ')');")
82 static Object parse(String s) {
86 @JavaScriptBody(args = {"url", "done", "method", "data", "hp"}, javacall = true, body = ""
87 + "var request = new XMLHttpRequest();\n"
88 + "if (!method) method = 'GET';\n"
89 + "request.open(method, url, true);\n"
90 + "request.setRequestHeader('Content-Type', 'application/json; charset=utf-8');\n"
91 + "for (var i = 0; i < hp.length; i += 2) {\n"
93 + " var v = hp[i + 1];\n"
94 + " request.setRequestHeader(h, v);\n"
96 + "request.onreadystatechange = function() {\n"
97 + " if (request.readyState !== 4) return;\n"
98 + " var r = request.response || request.responseText;\n"
101 + " if (request.status !== 0)\n"
102 + " if (request.status < 100 || request.status >= 400) throw request.status + ': ' + request.statusText;"
103 + " try { r = eval('(' + r + ')'); } catch (ignore) { }"
104 + " @org.netbeans.html.ko4j.KOTransfer::notifySuccess(Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)(done, str, r);\n"
105 + " } catch (error) {;\n"
106 + " @org.netbeans.html.ko4j.KOTransfer::notifyError(Ljava/lang/Object;Ljava/lang/Object;)(done, error);\n"
109 + "request.onerror = function (e) {\n"
110 + " @org.netbeans.html.ko4j.KOTransfer::notifyError(Ljava/lang/Object;Ljava/lang/Object;)(done, e.type + ' status ' + request.status);\n"
112 + "if (data) request.send(data);\n"
113 + "else request.send();\n"
115 static void loadJSON(
116 String url, JSONCall done, String method, String data, Object[] headerPairs
120 @JavaScriptBody(args = {"url", "jsonp"}, body
121 = "var scrpt = window.document.createElement('script');\n "
122 + "scrpt.setAttribute('src', url);\n "
123 + "scrpt.setAttribute('id', jsonp);\n "
124 + "scrpt.setAttribute('type', 'text/javascript');\n "
125 + "var body = document.getElementsByTagName('body')[0];\n "
126 + "body.appendChild(scrpt);\n"
128 static void loadJSONP(String url, String jsonp) {
132 static void extractJSON(Object jsonObject, String[] props, Object[] values) {
133 for (int i = 0; i < props.length; i++) {
134 values[i] = Knockout.getProperty(jsonObject, props[i]);