Fixes and improvements to JS APIs

jso/apis/src/main/java/org/teavm/jso/core/JSON.java

@@ -1,30 +0,0 @@
-/*
- *  Copyright 2019 Alexey Andreev.
- *
- *  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 org.teavm.jso.core;
-
-import org.teavm.jso.JSBody;
-import org.teavm.jso.JSObject;
-
-public final class JSON {
-    private JSON() {
-    }
-
-    @JSBody(params = "s", script = "return JSON.parse(s);")
-    public static native <T extends JSObject> T parse(String s);
-
-    @JSBody(params = "o", script = "JSON.stringify(o);")
-    public static native String stringify(JSObject o);
-}

jso/apis/src/main/java/org/teavm/jso/core/JSObjects.java

@@ -25,12 +25,18 @@ public final class JSObjects {
     @JSBody(params = "object", script = "return Object.getOwnPropertyNames(object);")
     public static native String[] getOwnPropertyNames(JSObject object);
 
-    @JSBody(script = "return Object.create(null);")
+    @JSBody(script = "return {};")
     public static native <T extends JSObject> T create();
 
+    @JSBody(script = "return Object.create(null);")
+    public static native <T extends JSObject> T createWithoutProto();
+
     @JSBody(params = "object", script = "return typeof object === 'undefined';")
     public static native boolean isUndefined(JSObject object);
 
+    @JSBody(script = "return void 0;")
+    public static native JSObject undefined();
+
     @JSBody(params = "object", script = "return typeof object;")
     public static native String typeOf(JSObject object);
 

jso/apis/src/main/java/org/teavm/jso/dom/html/HTMLDocument.java

@@ -88,4 +88,6 @@ public interface HTMLDocument extends Document, EventTarget {
 
     @JSProperty
     HTMLElement getPointerLockElement();
+
+    void exitPointerLock();
 }

jso/apis/src/main/java/org/teavm/jso/dom/html/HTMLElement.java

@@ -188,6 +188,4 @@ public interface HTMLElement extends Element, ElementCSSInlineStyle, EventTarget
     NodeList<? extends HTMLElement> querySelectorAll(String selectors);
 
     void requestPointerLock();
-
-    void exitPointerLock();
 }

jso/apis/src/main/java/org/teavm/jso/dom/html/HTMLImageElement.java

@@ -48,4 +48,10 @@ public interface HTMLImageElement extends HTMLElement, CanvasImageSource {
 
     @JSProperty
     void setSrc(String src);
+
+    @JSProperty
+    String getCrossOrigin();
+
+    @JSProperty
+    void setCrossOrigin(String crossOrigin);
 }