Android:

* Re-create RockboxFramebuffer instance with every time there's a new Activity.
* Also, allow Rockbox to be started via multimedia buttons, immediately starting playback if wanted.

We don't need to keep the fb instance around when it backround, and it makes us less depending on it and the activity (less race conditions). And this is how you usually do it in Android apps.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29384 a1c6a512-1295-4272-9138-f99709370657

4 files changed, 69 insertions, 94 deletions

diff --git a/android/src/org/rockbox/Helper/MediaButtonReceiver.java b/android/src/org/rockbox/Helper/MediaButtonReceiver.java
index 3749cec32a..a57bdd4831 100644
--- a/android/src/org/rockbox/Helper/MediaButtonReceiver.java
+++ b/android/src/org/rockbox/Helper/MediaButtonReceiver.java
@@ -22,9 +22,8 @@
 package org.rockbox.Helper;
 
 import java.lang.reflect.Method;
-
+import org.rockbox.RockboxFramebuffer;
 import org.rockbox.RockboxService;
-
 import android.content.BroadcastReceiver;
 import android.content.ComponentName;
 import android.content.Context;
@@ -73,7 +72,12 @@ public class MediaButtonReceiver
 
     /* helper class for the manifest */
     public static class MediaReceiver extends BroadcastReceiver
-    {        
+    {
+        private void startService(Context c, Intent baseIntent)
+        {
+            baseIntent.setClass(c, RockboxService.class);
+            c.startService(baseIntent);
+        }
         @Override
         public void onReceive(Context context, Intent intent)
         {
@@ -81,8 +85,11 @@ public class MediaButtonReceiver
             {
                 KeyEvent key = (KeyEvent)intent.getParcelableExtra(Intent.EXTRA_KEY_EVENT);
                 if (key.getAction() == KeyEvent.ACTION_UP)
-                {   /* pass the pressed key to Rockbox */
-                    if (RockboxService.get_instance().get_fb().dispatchKeyEvent(key))
+                {   /* pass the pressed key to Rockbox, starting it if needed */
+                    RockboxService s = RockboxService.get_instance();
+                    if (s == null || !s.isRockboxRunning())
+                        startService(context, intent);
+                    else if (RockboxFramebuffer.buttonHandler(key.getKeyCode(), false))
                         abortBroadcast();
                 }
             }
diff --git a/android/src/org/rockbox/RockboxActivity.java b/android/src/org/rockbox/RockboxActivity.java
index 90c687f35a..65c7f92bbe 100644
--- a/android/src/org/rockbox/RockboxActivity.java
+++ b/android/src/org/rockbox/RockboxActivity.java
@@ -29,16 +29,12 @@ import android.os.Bundle;
 import android.os.Handler;
 import android.os.ResultReceiver;
 import android.util.Log;
-import android.view.View;
-import android.view.ViewGroup;
 import android.view.Window;
 import android.view.WindowManager;
 import android.widget.Toast;
 
 public class RockboxActivity extends Activity 
 {
-    private RockboxService rbservice;
-
     /** Called when the activity is first created. */
     @Override
     public void onCreate(Bundle savedInstanceState) 
@@ -79,9 +75,7 @@ public class RockboxActivity extends Activity
                         loadingdialog.setProgress(resultData.getInt("value", 0));
                         break;
                     case RockboxService.RESULT_SERVICE_RUNNING:
-                        rbservice = RockboxService.get_instance();
                         setServiceActivity(true);
-                        attachFramebuffer();
                         break;
                     case RockboxService.RESULT_ERROR_OCCURED:
                         Toast.makeText(RockboxActivity.this, resultData.getString("error"), Toast.LENGTH_LONG);
@@ -89,38 +83,21 @@ public class RockboxActivity extends Activity
                 }
             }
         });
+        setContentView(new RockboxFramebuffer(this));
         startService(intent);
     }
 
     private void setServiceActivity(boolean set)
     {
-        if (rbservice != null)
-            rbservice.set_activity(set ? this : null);
-    }
-
-    private void attachFramebuffer()
-    {
-        View rbFramebuffer = null;
-        try {
-            rbFramebuffer = rbservice.get_fb();
-            setContentView(rbFramebuffer);
-        } catch (IllegalStateException e) {
-            /* we are already using the View,
-             * need to remove it and re-attach it */
-            ViewGroup g = (ViewGroup) rbFramebuffer.getParent();
-            g.removeView(rbFramebuffer);
-            setContentView(rbFramebuffer);
-        } catch (NullPointerException e) {
-            return;
-        }
-        rbFramebuffer.requestFocus();
+        RockboxService s = RockboxService.get_instance();
+        if (s != null)
+            s.set_activity(set ? this : null);
     }
 
     public void onResume()
     {
         super.onResume();
         setVisible(true);
-        attachFramebuffer();
     }
     
     /* this is also called when the backlight goes off,
diff --git a/android/src/org/rockbox/RockboxFramebuffer.java b/android/src/org/rockbox/RockboxFramebuffer.java
index 037fd2db85..a17bc90ab6 100644
--- a/android/src/org/rockbox/RockboxFramebuffer.java
+++ b/android/src/org/rockbox/RockboxFramebuffer.java
@@ -148,7 +148,7 @@ public class RockboxFramebuffer extends SurfaceView
     }
 
     private native void touchHandler(boolean down, int x, int y);
-    private native static boolean buttonHandler(int keycode, boolean state);
+    public native static boolean buttonHandler(int keycode, boolean state);
 
     public native void surfaceCreated(SurfaceHolder holder);
     public native void surfaceDestroyed(SurfaceHolder holder);
diff --git a/android/src/org/rockbox/RockboxService.java b/android/src/org/rockbox/RockboxService.java
index 43d122a8cc..4f0caa7704 100644
--- a/android/src/org/rockbox/RockboxService.java
+++ b/android/src/org/rockbox/RockboxService.java
@@ -59,8 +59,7 @@ public class RockboxService extends Service
     private static RockboxService instance = null;
     
     /* locals needed for the c code and rockbox state */
-    private RockboxFramebuffer fb = null;
-    private volatile boolean rockbox_running;
+    private static volatile boolean rockbox_running;
     private Activity current_activity = null;
     private IntentFilter itf;
     private BroadcastReceiver batt_monitor;
@@ -69,11 +68,9 @@ public class RockboxService extends Service
     @SuppressWarnings("unused")
     private int battery_level;
     private ResultReceiver resultReceiver;
-    final private Object lock = new Object();
 
     public static final int RESULT_INVOKING_MAIN = 0;
     public static final int RESULT_LIB_LOAD_PROGRESS = 1;
-    public static final int RESULT_FB_INITIALIZED = 2;
     public static final int RESULT_SERVICE_RUNNING = 3;
     public static final int RESULT_ERROR_OCCURED = 4;
     public static final int RESULT_LIB_LOADED = 5;
@@ -88,14 +85,15 @@ public class RockboxService extends Service
     
     public static RockboxService get_instance()
     {
+        /* don't call the construtor here, the instances are managed by
+         * android, so we can't just create a new one */
     	return instance;
     }
     
-    public RockboxFramebuffer get_fb()
+    public boolean isRockboxRunning()
     {
-    	return fb;
+        return rockbox_running;
     }
-    
     public Activity get_activity()
     {
     	return current_activity;
@@ -108,71 +106,48 @@ public class RockboxService extends Service
     private void do_start(Intent intent)
     {
         LOG("Start Service");
-
         if (intent != null && intent.hasExtra("callback"))
             resultReceiver = (ResultReceiver) intent.getParcelableExtra("callback");
 
-        /* Display a notification about us starting.  
-         * We put an icon in the status bar. */
-        if (fg_runner == null)
-        {   /* needs to be initialized before main() runs */
-            try {
-            } catch (Exception e) {
-                e.printStackTrace();
-            }
-        }
-
         if (!rockbox_running)
-        {
-            synchronized(lock)
-            {
-                startservice();
-                while(true) {
-                    try {
-                        lock.wait();
-                    } catch (InterruptedException e) {
-                        continue;
-                    }
-                    break;
-                }
-                fb = new RockboxFramebuffer(this);
-                if (resultReceiver != null)
-                    resultReceiver.send(RESULT_FB_INITIALIZED, null);
-            }
-        }
+            startservice();
         if (resultReceiver != null)
             resultReceiver.send(RESULT_LIB_LOADED, null);
 
+            
         if (intent != null && intent.getAction() != null)
         {
-            Log.d("RockboxService", intent.getAction());
-            if (intent.getAction().equals("org.rockbox.PlayPause"))
-            {
-                if (fb != null)
-                    fb.onKeyUp(KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE, null);
+            if (!rockbox_running)
+            {   /* give it a bit of time so we can register button presses 
+                 * sleeping longer doesn't work here, apparently Android 
+                 * surpresses long sleeps during intent handling */
+                try {
+                    Thread.sleep(50);
+                }
+                catch (InterruptedException e) { }
             }
-            else if (intent.getAction().equals("org.rockbox.Prev"))
+
+            if (intent.getAction().equals(Intent.ACTION_MEDIA_BUTTON))
             {
-                if (fb != null)
-                    fb.onKeyUp(KeyEvent.KEYCODE_MEDIA_PREVIOUS, null);
+                KeyEvent kev = (KeyEvent)intent.getParcelableExtra(Intent.EXTRA_KEY_EVENT);
+                RockboxFramebuffer.buttonHandler(kev.getKeyCode(), kev.getAction() == KeyEvent.ACTION_DOWN);
             }
+            else if (intent.getAction().equals("org.rockbox.PlayPause"))
+                RockboxFramebuffer.buttonHandler(KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE, false);
+            else if (intent.getAction().equals("org.rockbox.Prev"))
+                RockboxFramebuffer.buttonHandler(KeyEvent.KEYCODE_MEDIA_PREVIOUS, false);
             else if (intent.getAction().equals("org.rockbox.Next"))
-            {
-                if (fb != null)
-                    fb.onKeyUp(KeyEvent.KEYCODE_MEDIA_NEXT, null);
-            }
+                RockboxFramebuffer.buttonHandler(KeyEvent.KEYCODE_MEDIA_NEXT, false);
             else if (intent.getAction().equals("org.rockbox.Stop"))
-            {
-                if (fb != null)
-                    fb.onKeyUp(KeyEvent.KEYCODE_MEDIA_STOP, null);
-            }
+                RockboxFramebuffer.buttonHandler(KeyEvent.KEYCODE_MEDIA_STOP, false);
         }
 
         /* (Re-)attach the media button receiver, in case it has been lost */
         mMediaButtonReceiver.register();
-
         if (resultReceiver != null)
             resultReceiver.send(RESULT_SERVICE_RUNNING, null);
+        
+        rockbox_running = true;
     }
 
     private void LOG(CharSequence text)
@@ -195,16 +170,23 @@ public class RockboxService extends Service
         return 1; /* old API compatibility: 1 == START_STICKY */
     }
 
-    private void startservice() 
+    private void startservice()
     {
-        final int BUFFER = 8*1024;
+        final Object lock = new Object();        
         Thread rb = new Thread(new Runnable()
         {
             public void run()
             {
+                final int BUFFER = 8*1024;
                 String rockboxDirPath = "/data/data/org.rockbox/app_rockbox/rockbox";
                 File rockboxDir = new File(rockboxDirPath);
 
+                /* load library before unzipping which may take a while */
+                synchronized (lock) {
+                    System.loadLibrary("rockbox");
+                    lock.notify();
+                }
+
 		        /* the following block unzips libmisc.so, which contains the files 
 		         * we ship, such as themes. It's needed to put it into a .so file
 		         * because there's no other way to ship files and have access
@@ -268,13 +250,7 @@ public class RockboxService extends Service
     		            }
     		        }
                 }
-                
-                synchronized (lock) {
-                    System.loadLibrary("rockbox");
-                    lock.notify();
-                }
 
-		        rockbox_running = true;
 		        if (resultReceiver != null)
 		            resultReceiver.send(RESULT_INVOKING_MAIN, null);
 
@@ -283,7 +259,20 @@ public class RockboxService extends Service
             }
         }, "Rockbox thread");
         rb.setDaemon(false);
-        rb.start();
+        /* wait at least until the library is loaded */
+        synchronized (lock) 
+        {
+            rb.start();
+            while(true) 
+            {
+                try {
+                    lock.wait();
+                } catch (InterruptedException e) {
+                    continue;
+                }
+                break;
+            }   
+        }
     }
 
     private native void main();
@@ -352,5 +341,7 @@ public class RockboxService extends Service
         mMediaButtonReceiver = null;
         /* Make sure our notification is gone. */
         stopForeground();
+        instance = null;
+        rockbox_running = false;
     }
 }