Initial checkin of AOSP Messaging app.

b/23110861

Change-Id: I9aa980d7569247d6b2ca78f5dcb4502e1eaadb8a

src/com/android/messaging/datamodel/media/VideoThumbnailRequest.java

@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.messaging.datamodel.media;
+
+import android.content.ContentResolver;
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.provider.MediaStore.Video.Thumbnails;
+
+import com.android.messaging.Factory;
+import com.android.messaging.util.MediaMetadataRetrieverWrapper;
+import com.android.messaging.util.OsUtil;
+
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+
+/**
+ * Class to request a video thumbnail.
+ * Users of this class as responsible for checking {@link #shouldShowIncomingVideoThumbnails}
+ */
+public class VideoThumbnailRequest extends ImageRequest<UriImageRequestDescriptor> {
+
+    public VideoThumbnailRequest(final Context context,
+            final UriImageRequestDescriptor descriptor) {
+        super(context, descriptor);
+    }
+
+    public static boolean shouldShowIncomingVideoThumbnails() {
+        return OsUtil.isAtLeastM();
+    }
+
+    @Override
+    protected InputStream getInputStreamForResource() throws FileNotFoundException {
+        return null;
+    }
+
+    @Override
+    protected boolean hasBitmapObject() {
+        return true;
+    }
+
+    @Override
+    protected Bitmap getBitmapForResource() throws IOException {
+        final Long mediaId = mDescriptor.getMediaStoreId();
+        Bitmap bitmap = null;
+        if (mediaId != null) {
+            final ContentResolver cr = Factory.get().getApplicationContext().getContentResolver();
+            bitmap = Thumbnails.getThumbnail(cr, mediaId, Thumbnails.MICRO_KIND, null);
+        } else {
+            final MediaMetadataRetrieverWrapper retriever = new MediaMetadataRetrieverWrapper();
+            try {
+                retriever.setDataSource(mDescriptor.uri);
+                bitmap = retriever.getFrameAtTime();
+            } finally {
+                retriever.release();
+            }
+        }
+        if (bitmap != null) {
+            mDescriptor.updateSourceDimensions(bitmap.getWidth(), bitmap.getHeight());
+        }
+        return bitmap;
+    }
+}