Allow legacy components to paint infinity double values again (#19447)

JsonPaintTarget.addAttribute(String,double) converts infinity values to
{ "name": Infinity }. This is not valid JSON but has "always worked" and
at least NumberField relies on being able to send infinity values.

For state and RPC it's not possible to send 'infinity' as JsonNumber
converts those to null.

It is not possible to send 'infinity' back to the server using a legacy
variable either as also in this case JsonNumber is used and the value becomes
null.

This fix should be reverted when legacy variable support is removed.

Change-Id: I4b5366420e11915236eff447e3eeedc458cf8cea

client/src/com/vaadin/client/communication/MessageHandler.java

@@ -1784,7 +1784,11 @@ public class MessageHandler {
 
     private static native ValueMap parseJSONResponse(String jsonText)
     /*-{
-       return JSON.parse(jsonText);
+      try {
+        return JSON.parse(jsonText);
+      } catch (ignored) {
+        return eval('(' + jsonText + ')');
+      }
     }-*/;
 
     /**

uitest/src/com/vaadin/tests/serialization/LegacySerializerUI.java

@@ -0,0 +1,51 @@
+/* 
+ * Copyright 2000-2014 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.vaadin.tests.serialization;
+
+import java.util.Map;
+
+import com.vaadin.annotations.Widgetset;
+import com.vaadin.server.PaintException;
+import com.vaadin.server.PaintTarget;
+import com.vaadin.server.VaadinRequest;
+import com.vaadin.tests.components.AbstractTestUIWithLog;
+import com.vaadin.ui.AbstractComponent;
+import com.vaadin.ui.LegacyComponent;
+
+@Widgetset("com.vaadin.tests.widgetset.TestingWidgetSet")
+public class LegacySerializerUI extends AbstractTestUIWithLog {
+
+    public class LegacySerializerComponent extends AbstractComponent implements
+            LegacyComponent {
+
+        @Override
+        public void changeVariables(Object source, Map<String, Object> variables) {
+            log("doubleInfinity: " + variables.get("doubleInfinity"));
+        }
+
+        @Override
+        public void paintContent(PaintTarget target) throws PaintException {
+            target.addAttribute("doubleInfinity", Double.POSITIVE_INFINITY);
+        }
+
+    }
+
+    @Override
+    protected void setup(VaadinRequest request) {
+        addComponent(new LegacySerializerComponent());
+    }
+}

uitest/src/com/vaadin/tests/serialization/LegacySerializerUITest.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2000-2014 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.vaadin.tests.serialization;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.openqa.selenium.By;
+import org.openqa.selenium.WebElement;
+
+import com.vaadin.tests.tb3.SingleBrowserTest;
+
+public class LegacySerializerUITest extends SingleBrowserTest {
+
+    @Test
+    public void testInfinity() {
+        openTestURL();
+        WebElement html = findElement(By.className("gwt-HTML"));
+        Assert.assertEquals("doubleInfinity: Infinity", html.getText());
+        // Can't send infinity back, never have been able to
+        Assert.assertEquals("1. doubleInfinity: null", getLogRow(0));
+    }
+
+}

uitest/src/com/vaadin/tests/widgetset/client/LegacySerializerConnector.java

@@ -0,0 +1,42 @@
+/*
+ * Copyright 2000-2014 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.vaadin.tests.widgetset.client;
+
+import com.google.gwt.user.client.ui.HTML;
+import com.vaadin.client.ApplicationConnection;
+import com.vaadin.client.Paintable;
+import com.vaadin.client.UIDL;
+import com.vaadin.client.ui.AbstractComponentConnector;
+import com.vaadin.shared.ui.Connect;
+import com.vaadin.tests.serialization.LegacySerializerUI.LegacySerializerComponent;
+
+@Connect(value = LegacySerializerComponent.class)
+public class LegacySerializerConnector extends AbstractComponentConnector
+        implements Paintable {
+
+    @Override
+    public void updateFromUIDL(UIDL uidl, ApplicationConnection client) {
+        double doubleAttribute = uidl.getDoubleAttribute("doubleInfinity");
+        getWidget().setHTML("doubleInfinity: " + doubleAttribute);
+        client.updateVariable(getConnectorId(), "doubleInfinity",
+                doubleAttribute, true);
+    }
+
+    @Override
+    public HTML getWidget() {
+        return (HTML) super.getWidget();
+    }
+}