Raw mouse input WIP

src/com/limelight/binding/input/evdev/EvdevWatcher.java

@@ -0,0 +1,75 @@
+package com.limelight.binding.input.evdev;
+
+import java.io.File;
+import java.util.HashMap;
+
+import android.os.FileObserver;
+
+public class EvdevWatcher {
+	private static final String PATH = "/dev/input";
+	private static final String REQUIRED_FILE_PREFIX = "event";
+	
+	private HashMap<String, EvdevHandler> handlers = new HashMap<String, EvdevHandler>();
+	private boolean shutdown = false;
+	private EvdevListener listener;
+	
+	private FileObserver observer = new FileObserver(PATH, FileObserver.CREATE | FileObserver.DELETE) {
+		@Override
+		public void onEvent(int event, String fileName) {
+			if (!fileName.startsWith(REQUIRED_FILE_PREFIX)) {
+				return;
+			}
+			
+			synchronized (handlers) {
+				if (shutdown) {
+					return;
+				}
+				
+				if ((event & FileObserver.CREATE) != 0) {
+					EvdevHandler handler = new EvdevHandler(PATH + "/" + fileName, listener);
+					handler.start();
+					
+					handlers.put(fileName, handler);
+				}
+				
+				if ((event & FileObserver.DELETE) != 0) {
+					EvdevHandler handler = handlers.get(fileName);
+					if (handler != null) {
+						handler.notifyDeleted();
+					}
+				}
+			}
+		}
+	};
+	
+	public EvdevWatcher(EvdevListener listener) {
+		this.listener = listener;
+	}
+	
+	public void start() {
+		// Start watching for new files
+		observer.startWatching();
+		
+		// Rundown existing files and generate synthetic events
+		File devInputDir = new File(PATH);
+		File[] files = devInputDir.listFiles();
+		for (File f : files) {
+			observer.onEvent(FileObserver.CREATE, f.getName());
+		}
+	}
+	
+	public void shutdown() {
+		// Stop the observer
+		observer.stopWatching();
+		
+		synchronized (handlers) {
+			// Stop creating new handlers
+			shutdown = true;
+			
+			// Stop all handlers
+			for (EvdevHandler handler : handlers.values()) {
+				handler.stop();
+			}
+		}
+	}
+}