jaroslav@1189: /**
jaroslav@1189: * HTML via Java(tm) Language Bindings
jaroslav@1189: * Copyright (C) 2013 Jaroslav Tulach
jaroslav@1189: *
jaroslav@1189: * This program is free software: you can redistribute it and/or modify
jaroslav@1189: * it under the terms of the GNU General Public License as published by
jaroslav@1189: * the Free Software Foundation, version 2 of the License.
jaroslav@1189: *
jaroslav@1189: * This program is distributed in the hope that it will be useful,
jaroslav@1189: * but WITHOUT ANY WARRANTY; without even the implied warranty of
jaroslav@1189: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
jaroslav@1189: * GNU General Public License for more details. apidesign.org
jaroslav@1189: * designates this particular file as subject to the
jaroslav@1189: * "Classpath" exception as provided by apidesign.org
jaroslav@1189: * in the License file that accompanied this code.
jaroslav@1189: *
jaroslav@1189: * You should have received a copy of the GNU General Public License
jaroslav@1189: * along with this program. Look for COPYING file in the top folder.
jaroslav@1189: * If not, see http://wiki.apidesign.org/wiki/GPLwithClassPathException
jaroslav@1189: */
jaroslav@1189: package org.apidesign.html.ko2brwsr;
jaroslav@1189:
jaroslav@1189: import org.apidesign.bck2brwsr.core.JavaScriptBody;
jaroslav@1189:
jaroslav@1189: /**
jaroslav@1189: *
jaroslav@1189: * @author Jaroslav Tulach
jaroslav@1189: */
jaroslav@1194: final class ConvertTypes {
jaroslav@1189: ConvertTypes() {
jaroslav@1189: }
jaroslav@1189:
jaroslav@1189: public static String toString(Object object, String property) {
jaroslav@1189: Object ret = getProperty(object, property);
jaroslav@1189: return ret == null ? null : ret.toString();
jaroslav@1189: }
jaroslav@1189:
jaroslav@1189: public static double toDouble(Object object, String property) {
jaroslav@1189: Object ret = getProperty(object, property);
jaroslav@1189: return ret instanceof Number ? ((Number)ret).doubleValue() : Double.NaN;
jaroslav@1189: }
jaroslav@1189:
jaroslav@1189: public static int toInt(Object object, String property) {
jaroslav@1189: Object ret = getProperty(object, property);
jaroslav@1189: return ret instanceof Number ? ((Number)ret).intValue() : Integer.MIN_VALUE;
jaroslav@1189: }
jaroslav@1189:
jaroslav@1189: public static T toModel(Class modelClass, Object object, String property) {
jaroslav@1189: Object ret = getProperty(object, property);
jaroslav@1189: if (ret == null || modelClass.isInstance(ret)) {
jaroslav@1189: return modelClass.cast(ret);
jaroslav@1189: }
jaroslav@1189: throw new IllegalStateException("Value " + ret + " is not of type " + modelClass);
jaroslav@1189: }
jaroslav@1189:
jaroslav@1189: public static String toJSON(Object value) {
jaroslav@1189: if (value == null) {
jaroslav@1189: return "null";
jaroslav@1189: }
jaroslav@1189: if (value instanceof Enum) {
jaroslav@1189: value = value.toString();
jaroslav@1189: }
jaroslav@1189: if (value instanceof String) {
jaroslav@1189: return '"' +
jaroslav@1189: ((String)value).
jaroslav@1189: replace("\"", "\\\"").
jaroslav@1189: replace("\n", "\\n").
jaroslav@1189: replace("\r", "\\r").
jaroslav@1189: replace("\t", "\\t")
jaroslav@1189: + '"';
jaroslav@1189: }
jaroslav@1189: return value.toString();
jaroslav@1189: }
jaroslav@1189:
jaroslav@1189: @JavaScriptBody(args = { "object", "property" },
jaroslav@1189: body = "if (property === null) return object;\n"
jaroslav@1189: + "var p = object[property]; return p ? p : null;"
jaroslav@1189: )
jaroslav@1189: private static Object getProperty(Object object, String property) {
jaroslav@1189: return null;
jaroslav@1189: }
jaroslav@1189:
jaroslav@1189: public static String createJSONP(Object[] jsonResult, Runnable whenDone) {
jaroslav@1189: int h = whenDone.hashCode();
jaroslav@1189: String name;
jaroslav@1189: for (;;) {
jaroslav@1189: name = "jsonp" + Integer.toHexString(h);
jaroslav@1189: if (defineIfUnused(name, jsonResult, whenDone)) {
jaroslav@1189: return name;
jaroslav@1189: }
jaroslav@1189: h++;
jaroslav@1189: }
jaroslav@1189: }
jaroslav@1189:
jaroslav@1189: @JavaScriptBody(args = { "name", "arr", "run" }, body =
jaroslav@1189: "if (window[name]) return false;\n "
jaroslav@1189: + "window[name] = function(data) {\n "
jaroslav@1189: + " delete window[name];\n"
jaroslav@1189: + " var el = window.document.getElementById(name);\n"
jaroslav@1189: + " el.parentNode.removeChild(el);\n"
jaroslav@1189: + " arr[0] = data;\n"
jaroslav@1189: + " run.run__V();\n"
jaroslav@1189: + "};\n"
jaroslav@1189: + "return true;\n"
jaroslav@1189: )
jaroslav@1189: private static boolean defineIfUnused(String name, Object[] arr, Runnable run) {
jaroslav@1189: return true;
jaroslav@1189: }
jaroslav@1189:
jaroslav@1196: @JavaScriptBody(args = { "s" }, body = "return eval('(' + s + ')');")
jaroslav@1196: static Object parse(String s) {
jaroslav@1196: return s;
jaroslav@1196: }
jaroslav@1196:
jaroslav@1199: @JavaScriptBody(args = { "url", "arr", "callback", "method", "data" }, body = ""
jaroslav@1189: + "var request = new XMLHttpRequest();\n"
jaroslav@1199: + "if (!method) method = 'GET';\n"
jaroslav@1199: + "request.open(method, url, true);\n"
jaroslav@1189: + "request.setRequestHeader('Content-Type', 'application/json; charset=utf-8');\n"
jaroslav@1189: + "request.onreadystatechange = function() {\n"
jaroslav@1189: + " if (this.readyState!==4) return;\n"
jaroslav@1189: + " try {\n"
jaroslav@1189: + " arr[0] = eval('(' + this.response + ')');\n"
jaroslav@1189: + " } catch (error) {;\n"
jaroslav@1199: + " arr[0] = this.response;\n"
jaroslav@1199: + " }\n"
jaroslav@1189: + " callback.run__V();\n"
jaroslav@1189: + "};"
jaroslav@1199: + "if (data) request.send(data);"
jaroslav@1199: + "else request.send();"
jaroslav@1189: )
jaroslav@1199: static void loadJSON(
jaroslav@1199: String url, Object[] jsonResult, Runnable whenDone, String method, String data
jaroslav@1189: ) {
jaroslav@1189: }
jaroslav@1189:
jaroslav@1189: @JavaScriptBody(args = { "url", "jsonp" }, body =
jaroslav@1189: "var scrpt = window.document.createElement('script');\n "
jaroslav@1189: + "scrpt.setAttribute('src', url);\n "
jaroslav@1189: + "scrpt.setAttribute('id', jsonp);\n "
jaroslav@1189: + "scrpt.setAttribute('type', 'text/javascript');\n "
jaroslav@1189: + "var body = document.getElementsByTagName('body')[0];\n "
jaroslav@1189: + "body.appendChild(scrpt);\n"
jaroslav@1189: )
jaroslav@1199: static void loadJSONP(String url, String jsonp) {
jaroslav@1189:
jaroslav@1189: }
jaroslav@1189:
jaroslav@1189: public static void extractJSON(Object jsonObject, String[] props, Object[] values) {
jaroslav@1189: for (int i = 0; i < props.length; i++) {
jaroslav@1189: values[i] = getProperty(jsonObject, props[i]);
jaroslav@1189: }
jaroslav@1189: }
jaroslav@1189:
jaroslav@1189: }