add STM32OperationProgressListener

Author: Guillaume Revaillot

src/main/java/org/stm32flash/STM32Device.java

@@ -1,6 +1,7 @@
 package org.stm32flash;
 
 import java.io.IOException;
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.concurrent.TimeoutException;
 
@@ -126,6 +127,17 @@ public STM32Device(STM32UsartInterface iface, boolean debug) {
         mDebug = debug;
     }
 
+    ArrayList<STM32OperationProgressListener> mListeners = new ArrayList();
+
+    public void registerProgressListener(STM32OperationProgressListener l) {
+        mListeners.add(l);
+    }
+
+    public void unregisterProgressListener(STM32OperationProgressListener l) {
+        if (mListeners.contains(l))
+            mListeners.remove(l);
+    }
+
     public boolean connect() throws IOException, TimeoutException {
         if (!mIsConnected) {
             // stm init will return nack if already connected - dont run it twice.

src/main/java/org/stm32flash/STM32Flasher.java

@@ -20,6 +20,14 @@ public STM32Device getDevice() {
         return mSTM32Device;
     }
 
+    public void registerProgressListener(STM32OperationProgressListener l) {
+        mSTM32Device.registerProgressListener(l);
+    }
+
+    public void unregisterProgressListener(STM32OperationProgressListener l) {
+        mSTM32Device.unregisterProgressListener(l);
+    }
+
     public boolean connect() throws IOException, TimeoutException {
         if (!mSTM32Device.connect()) {
             System.err.println("Could not connect to STM32 device.");

src/main/java/org/stm32flash/STM32OperationProgressListener.java

@@ -0,0 +1,6 @@
+package org.stm32flash;
+
+public interface STM32OperationProgressListener {
+    public void completed(boolean successfull);
+    public void progress(long current, long total);
+}