overlay is added also when downloading new thumbnails

src/com/owncloud/android/datamodel/ThumbnailsCacheManager.java

@@ -24,6 +24,8 @@ package com.owncloud.android.datamodel;
 import java.io.File;
 import java.io.InputStream;
 import java.lang.ref.WeakReference;
+import java.net.FileNameMap;
+import java.net.URLConnection;
 
 import org.apache.commons.httpclient.HttpStatus;
 import org.apache.commons.httpclient.methods.GetMethod;
@@ -33,6 +35,8 @@ import android.content.res.Resources;
 import android.graphics.Bitmap;
 import android.graphics.Bitmap.CompressFormat;
 import android.graphics.BitmapFactory;
+import android.graphics.Canvas;
+import android.graphics.Paint;
 import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
 import android.media.ThumbnailUtils;
@@ -176,8 +180,20 @@ public class ThumbnailsCacheManager {
                 
                 if (mFile instanceof OCFile) {
                     thumbnail = doOCFileInBackground();
+
+                    if (((OCFile) mFile).isVideo()){
+                        thumbnail = addVideoOverlay(thumbnail);
+                    }
                 }  else if (mFile instanceof File) {
                     thumbnail = doFileInBackground();
+
+                    String url = ((File) mFile).getAbsolutePath();
+                    FileNameMap fileNameMap = URLConnection.getFileNameMap();
+                    String mMimeType = fileNameMap.getContentTypeFor("file://" + url);
+
+                    if (mMimeType != null && mMimeType.startsWith("video/")){
+                        thumbnail = addVideoOverlay(thumbnail);
+                    }
                 //} else {  do nothing
                 }
 
@@ -362,6 +378,31 @@ public class ThumbnailsCacheManager {
         return null;
     }
 
+    public static Bitmap addVideoOverlay(Bitmap thumbnail){
+        Bitmap bitmap2 = BitmapFactory.decodeResource(MainApp.getAppContext().getResources(),
+                                                          R.drawable.view_play);
+
+        Bitmap resized = Bitmap.createScaledBitmap(bitmap2,
+                (int) (thumbnail.getWidth() * 0.6),
+                (int) (thumbnail.getHeight() * 0.6), true);
+
+        Bitmap resultBitmap = Bitmap.createBitmap(thumbnail.getWidth(),
+                thumbnail.getHeight(),
+                Bitmap.Config.ARGB_8888);
+
+        Canvas c = new Canvas(resultBitmap);
+
+        c.drawBitmap(thumbnail, 0, 0, null);
+
+        Paint p = new Paint();
+        p.setAlpha(230);
+
+        c.drawBitmap(resized, (thumbnail.getWidth() - resized.getWidth()) / 2,
+                (thumbnail.getHeight() - resized.getHeight()) / 2, p);
+
+        return resultBitmap;
+    }
+
     public static class AsyncDrawable extends BitmapDrawable {
         private final WeakReference<ThumbnailGenerationTask> bitmapWorkerTaskReference;
 

src/com/owncloud/android/ui/adapter/FileListListAdapter.java

@@ -31,6 +31,8 @@ import android.content.Context;
 import android.content.SharedPreferences;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
+import android.graphics.Canvas;
+import android.graphics.Paint;
 import android.os.Build;
 import android.preference.PreferenceManager;
 import android.text.format.DateUtils;
@@ -301,7 +303,13 @@ public class FileListListAdapter extends BaseAdapter implements ListAdapter {
                             String.valueOf(file.getRemoteId())
                             );
                     if (thumbnail != null && !file.needsUpdateThumbnail()){
-                        fileIcon.setImageBitmap(thumbnail);
+
+                        if (file.isVideo()) {
+                            Bitmap withOverlay = ThumbnailsCacheManager.addVideoOverlay(thumbnail);
+                            fileIcon.setImageBitmap(withOverlay);
+                        } else {
+                            fileIcon.setImageBitmap(thumbnail);
+                        }
                     } else {
                         // generate new Thumbnail
                         if (ThumbnailsCacheManager.cancelPotentialWork(file, fileIcon)) {