Gamepad api (#444)

Add gamepad API to JSO

jso/apis/src/main/java/org/teavm/jso/browser/Navigator.java

@@ -16,6 +16,7 @@
 package org.teavm.jso.browser;
 
 import org.teavm.jso.JSBody;
+import org.teavm.jso.gamepad.Gamepad;
 import org.teavm.jso.geolocation.Geolocation;
 
 public final class Navigator {
@@ -36,4 +37,7 @@ public final class Navigator {
 
     @JSBody(script = "return navigator.languages;")
     public static native String[] getLanguages();
+    
+    @JSBody(script = "return navigator.getGamepads();")
+    public static native Gamepad[] getGamepads();
 }

jso/apis/src/main/java/org/teavm/jso/browser/WindowEventTarget.java

@@ -19,6 +19,7 @@ import org.teavm.jso.dom.events.Event;
 import org.teavm.jso.dom.events.EventListener;
 import org.teavm.jso.dom.events.EventTarget;
 import org.teavm.jso.dom.events.FocusEventTarget;
+import org.teavm.jso.dom.events.GamepadEventTarget;
 import org.teavm.jso.dom.events.HashChangeEvent;
 import org.teavm.jso.dom.events.KeyboardEventTarget;
 import org.teavm.jso.dom.events.LoadEventTarget;
@@ -26,7 +27,7 @@ import org.teavm.jso.dom.events.MessageEvent;
 import org.teavm.jso.dom.events.MouseEventTarget;
 
 public interface WindowEventTarget extends EventTarget, FocusEventTarget, MouseEventTarget, KeyboardEventTarget,
-        LoadEventTarget {
+        LoadEventTarget, GamepadEventTarget {
     default void listenBeforeOnload(EventListener<Event> listener) {
         addEventListener("beforeunload", listener);
     }

jso/apis/src/main/java/org/teavm/jso/dom/events/GamepadEventTarget.java

@@ -0,0 +1,37 @@
+/*
+ *  Copyright 2019 devnewton.
+ *
+ *  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.dom.events;
+
+import org.teavm.jso.gamepad.GamepadEvent;
+
+public interface GamepadEventTarget extends EventTarget {
+    default void listenGamepadConnected(EventListener<GamepadEvent> listener) {
+        addEventListener("gamepadconnected", listener);
+    }
+
+    default void neglectGamepadConnected(EventListener<GamepadEvent> listener) {
+        removeEventListener("gamepadconnected", listener);
+    }
+
+    default void listenGamepadDisconnected(EventListener<GamepadEvent> listener) {
+        addEventListener("gamepaddisconnected", listener);
+    }
+
+    default void neglectGamepadDisconnected(EventListener<GamepadEvent> listener) {
+        removeEventListener("gamepaddisconnected", listener);
+    }
+
+}

jso/apis/src/main/java/org/teavm/jso/gamepad/Gamepad.java

@@ -0,0 +1,45 @@
+/*
+ *  Copyright 2019 devnewton.
+ *
+ *  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.gamepad;
+
+import org.teavm.jso.JSObject;
+import org.teavm.jso.JSProperty;
+
+public interface Gamepad extends JSObject {
+    @JSProperty
+    double[] getAxes();
+
+    @JSProperty
+    GamepadButton[] getButtons();
+
+    @JSProperty
+    boolean isConnected();
+
+    @JSProperty
+    String getId();
+
+    @JSProperty
+    int getDisplayId();
+
+    @JSProperty
+    int getIndex();
+
+    @JSProperty
+    String getMapping();
+
+    @JSProperty
+    double getTimestamp();
+}

jso/apis/src/main/java/org/teavm/jso/gamepad/GamepadButton.java

@@ -0,0 +1,27 @@
+/*
+ *  Copyright 2019 devnewton.
+ *
+ *  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.gamepad;
+
+import org.teavm.jso.JSObject;
+import org.teavm.jso.JSProperty;
+
+public interface GamepadButton extends JSObject {
+    @JSProperty
+    double getValue();
+
+    @JSProperty
+    boolean isPressed();
+}

jso/apis/src/main/java/org/teavm/jso/gamepad/GamepadEvent.java

@@ -0,0 +1,24 @@
+/*
+ *  Copyright 2019 devnewton.
+ *
+ *  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.gamepad;
+
+import org.teavm.jso.JSProperty;
+import org.teavm.jso.dom.events.Event;
+
+public interface GamepadEvent extends Event {
+    @JSProperty
+    Gamepad getGamepad();
+}

samples/gamepad/pom.xml

@@ -0,0 +1,106 @@
+<!--
+    Copyright 2014 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.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>org.teavm</groupId>
+    <artifactId>teavm-samples</artifactId>
+    <version>0.7.0-SNAPSHOT</version>
+  </parent>
+  <artifactId>teavm-samples-gamepad</artifactId>
+
+  <packaging>war</packaging>
+
+  <name>TeaVM Web gamepad web application</name>
+  <description>A sample application that demonstrate how to use Web gamepad API.</description>
+
+  <dependencies>
+    <dependency>
+      <groupId>org.teavm</groupId>
+      <artifactId>teavm-classlib</artifactId>
+      <version>${project.version}</version>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.teavm</groupId>
+      <artifactId>teavm-jso-apis</artifactId>
+      <version>${project.version}</version>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>javax.servlet</groupId>
+      <artifactId>javax.servlet-api</artifactId>
+      <version>3.1.0</version>
+      <scope>provided</scope>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <artifactId>maven-war-plugin</artifactId>
+        <version>2.4</version>
+        <configuration>
+          <webResources>
+            <resource>
+              <directory>${project.build.directory}/generated/js</directory>
+            </resource>
+          </webResources>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.teavm</groupId>
+        <artifactId>teavm-maven-plugin</artifactId>
+        <version>${project.version}</version>
+        <executions>
+          <execution>
+            <id>web-client</id>
+            <phase>prepare-package</phase>
+            <goals>
+              <goal>compile</goal>
+            </goals>
+            <configuration>
+              <targetDirectory>${project.build.directory}/generated/js/teavm</targetDirectory>
+              <mainClass>org.teavm.samples.gamepad.Application</mainClass>
+              <minifying>false</minifying>
+              <debugInformationGenerated>true</debugInformationGenerated>
+              <sourceMapsGenerated>true</sourceMapsGenerated>
+              <sourceFilesCopied>true</sourceFilesCopied>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-checkstyle-plugin</artifactId>
+        <configuration>
+          <configLocation>../../checkstyle.xml</configLocation>
+          <propertyExpansion>config_loc=${basedir}/../..</propertyExpansion>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-source-plugin</artifactId>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-javadoc-plugin</artifactId>
+      </plugin>
+    </plugins>
+  </build>
+</project>

samples/gamepad/src/main/java/org/teavm/samples/gamepad/Application.java

@@ -0,0 +1,70 @@
+/*
+ *  Copyright 2019 devnewton.
+ *
+ *  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.samples.gamepad;
+
+import org.teavm.jso.browser.Navigator;
+import org.teavm.jso.browser.Window;
+import org.teavm.jso.dom.html.HTMLDocument;
+import org.teavm.jso.dom.html.HTMLElement;
+import org.teavm.jso.gamepad.Gamepad;
+import org.teavm.jso.gamepad.GamepadButton;
+
+/**
+ *
+ * @author devnewton
+ */
+public final class Application {
+
+    private static final HTMLDocument document = Window.current().getDocument();
+
+    private Application() {
+    }
+
+    public static void main(String[] args) {
+        refresh(0);
+    }
+
+    public static void refresh(double timestamp) {
+        StringBuilder sb = new StringBuilder();
+        for (Gamepad pad : Navigator.getGamepads()) {
+            if (null != pad) {
+                sb.append("<p>");
+                sb.append("Pad: ").append(pad.getId()).append("<br>");
+
+                sb.append("Axes: ");
+                double[] axes = pad.getAxes();
+                for (int a = 0; a < axes.length; ++a) {
+                    sb.append(axes[a]).append(" ");
+                }
+                sb.append("<br>");
+
+                sb.append("Buttons pressed: ");
+                int buttonNum = 1;
+                for (GamepadButton button : pad.getButtons()) {
+                    if (button.isPressed()) {
+                        sb.append(buttonNum).append(" ");
+                    }
+                    ++buttonNum;
+                }
+
+                sb.append("</p>");
+            }
+        }
+        HTMLElement status = document.getElementById("gamepad-status");
+        status.setInnerHTML(sb.toString());
+        Window.requestAnimationFrame(Application::refresh);
+    }
+}

samples/gamepad/src/main/webapp/WEB-INF/web.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+    Copyright 2014 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.
+-->
+<web-app xmlns="http://java.sun.com/xml/ns/javaee"
+      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+      xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
+      version="3.0">
+</web-app>

samples/gamepad/src/main/webapp/index.html

@@ -0,0 +1,28 @@
+<!--
+    Copyright 2014 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.
+-->
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Web Gamepad web application</title>
+    <meta http-equiv="Content-Type" content="text/html;charset=utf-8">
+    <script type="text/javascript" charset="utf-8" src="teavm/classes.js"></script>
+  </head>
+  <body onload="main()">
+    <h1>Gamepad test application</h1>
+    Plug your gamepad and press some buttons.
+    <div id="gamepad-status"></div>
+  </body>
+</html>

samples/pom.xml

@@ -37,5 +37,6 @@
     <module>async</module>
     <module>kotlin</module>
     <module>scala</module>
+    <module>gamepad</module>
   </modules>
 </project>