Added image/video control and property manipulation

src/main/java/org/openautonomousconnection/luascript/tables/VideoTable.java

@@ -0,0 +1,127 @@
+package org.openautonomousconnection.luascript.tables;
+
+import org.luaj.vm2.LuaValue;
+import org.luaj.vm2.Varargs;
+import org.luaj.vm2.lib.VarArgFunction;
+import org.luaj.vm2.lib.ZeroArgFunction;
+import org.openautonomousconnection.luascript.hosts.HostServices;
+import org.openautonomousconnection.luascript.hosts.VideoHost;
+import org.openautonomousconnection.luascript.utils.ScriptTable;
+
+import java.io.File;
+
+/**
+ * Lua table: video
+ *
+ * <p>Functions:</p>
+ * <ul>
+ *   <li>video.play(pathOrUrl)</li>
+ *   <li>video.pause()</li>
+ *   <li>video.resume()</li>
+ *   <li>video.stop()</li>
+ *   <li>video.hide()</li>
+ *   <li>video.rect(x, y, w, h)</li>
+ *   <li>video.volume(v)</li>
+ *   <li>video.loop(boolean)</li>
+ *   <li>video.seek(seconds)</li>
+ * </ul>
+ */
+public final class VideoTable extends ScriptTable {
+
+    public VideoTable() {
+        super("video");
+    }
+
+    @Override
+    protected void define(HostServices services) {
+        VideoHost host = services.video()
+                .orElseThrow(() -> new IllegalStateException("VideoHost not provided"));
+
+        table().set("play", new VarArgFunction() {
+            @Override
+            public Varargs invoke(Varargs args) {
+                String src = args.arg(1).checkjstring();
+                if (looksLikeUrl(src)) host.playUrl(src);
+                else host.playFile(new File(src));
+                return LuaValue.NIL;
+            }
+        });
+
+        table().set("pause", new ZeroArgFunction() {
+            @Override
+            public LuaValue call() {
+                host.pause();
+                return LuaValue.NIL;
+            }
+        });
+
+        table().set("resume", new ZeroArgFunction() {
+            @Override
+            public LuaValue call() {
+                host.resume();
+                return LuaValue.NIL;
+            }
+        });
+
+        table().set("stop", new ZeroArgFunction() {
+            @Override
+            public LuaValue call() {
+                host.stop();
+                return LuaValue.NIL;
+            }
+        });
+
+        table().set("hide", new ZeroArgFunction() {
+            @Override
+            public LuaValue call() {
+                host.hide();
+                return LuaValue.NIL;
+            }
+        });
+
+        table().set("rect", new VarArgFunction() {
+            @Override
+            public Varargs invoke(Varargs args) {
+                double x = args.arg(1).checkdouble();
+                double y = args.arg(2).checkdouble();
+                double w = args.arg(3).checkdouble();
+                double h = args.arg(4).checkdouble();
+                host.setRect(x, y, w, h);
+                return LuaValue.NIL;
+            }
+        });
+
+        table().set("volume", new VarArgFunction() {
+            @Override
+            public Varargs invoke(Varargs args) {
+                double v = args.arg(1).checkdouble();
+                host.setVolume(v);
+                return LuaValue.NIL;
+            }
+        });
+
+        table().set("loop", new VarArgFunction() {
+            @Override
+            public Varargs invoke(Varargs args) {
+                boolean b = args.arg(1).checkboolean();
+                host.setLoop(b);
+                return LuaValue.NIL;
+            }
+        });
+
+        table().set("seek", new VarArgFunction() {
+            @Override
+            public Varargs invoke(Varargs args) {
+                double s = args.arg(1).checkdouble();
+                host.seek(s);
+                return LuaValue.NIL;
+            }
+        });
+    }
+
+    private static boolean looksLikeUrl(String s) {
+        if (s == null) return false;
+        int idx = s.indexOf("://");
+        return idx > 0 && idx < 16;
+    }
+}