1 files changed, 124 insertions, 0 deletions
diff --git a/java/com/android/dialer/callcomposer/util/CopyAndResizeImageTask.java b/java/com/android/dialer/callcomposer/util/CopyAndResizeImageTask.java
new file mode 100644
index 000000000..83580fd38
--- /dev/null
+++ b/java/com/android/dialer/callcomposer/util/CopyAndResizeImageTask.java
@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2016 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.dialer.callcomposer.util;
+
+import android.annotation.TargetApi;
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.Bitmap.CompressFormat;
+import android.graphics.BitmapFactory;
+import android.net.Uri;
+import android.os.Build.VERSION_CODES;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import com.android.dialer.common.Assert;
+import com.android.dialer.common.FallibleAsyncTask;
+import com.android.dialer.common.LogUtil;
+import com.android.dialer.util.DialerUtils;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.OutputStream;
+
+/** Task for copying and resizing images to be shared with RCS process. */
+@TargetApi(VERSION_CODES.M)
+public class CopyAndResizeImageTask extends FallibleAsyncTask<Void, Void, File> {
+  public static final int MAX_OUTPUT_RESOLUTION = 1024;
+  private static final String MIME_TYPE = "image/jpeg";
+
+  private final Context context;
+  private final Uri uri;
+  private final Callback callback;
+
+  public CopyAndResizeImageTask(
+      @NonNull Context context, @NonNull Uri uri, @NonNull Callback callback) {
+    this.context = Assert.isNotNull(context);
+    this.uri = Assert.isNotNull(uri);
+    this.callback = Assert.isNotNull(callback);
+  }
+
+  @Nullable
+  @Override
+  protected File doInBackgroundFallible(Void... params) throws Throwable {
+    Bitmap bitmap = BitmapFactory.decodeStream(context.getContentResolver().openInputStream(uri));
+    bitmap = resizeForEnrichedCalling(bitmap);
+
+    File outputFile = DialerUtils.createShareableFile(context);
+    try (OutputStream outputStream = new FileOutputStream(outputFile)) {
+      // Encode images to jpeg as it is better for camera pictures which we expect to be sending
+      bitmap.compress(CompressFormat.JPEG, 90, outputStream);
+      return outputFile;
+    }
+  }
+
+  @Override
+  protected void onPostExecute(FallibleTaskResult<File> result) {
+    if (result.isFailure()) {
+      callback.onCopyFailed(result.getThrowable());
+    } else {
+      callback.onCopySuccessful(result.getResult(), MIME_TYPE);
+    }
+  }
+
+  public static Bitmap resizeForEnrichedCalling(Bitmap image) {
+    Assert.isWorkerThread();
+
+    int width = image.getWidth();
+    int height = image.getHeight();
+
+    LogUtil.i(
+        "CopyAndResizeImageTask.resizeForEnrichedCalling",
+        "starting height: %d, width: %d",
+        height,
+        width);
+
+    if (width <= MAX_OUTPUT_RESOLUTION && height <= MAX_OUTPUT_RESOLUTION) {
+      LogUtil.i("CopyAndResizeImageTask.resizeForEnrichedCalling", "no resizing needed");
+      return image;
+    }
+
+    if (width > height) {
+      // landscape
+      float ratio = width / (float) MAX_OUTPUT_RESOLUTION;
+      width = MAX_OUTPUT_RESOLUTION;
+      height = (int) (height / ratio);
+    } else if (height > width) {
+      // portrait
+      float ratio = height / (float) MAX_OUTPUT_RESOLUTION;
+      height = MAX_OUTPUT_RESOLUTION;
+      width = (int) (width / ratio);
+    } else {
+      // square
+      height = MAX_OUTPUT_RESOLUTION;
+      width = MAX_OUTPUT_RESOLUTION;
+    }
+
+    LogUtil.i(
+        "CopyAndResizeImageTask.resizeForEnrichedCalling",
+        "ending height: %d, width: %d",
+        height,
+        width);
+
+    return Bitmap.createScaledBitmap(image, width, height, true);
+  }
+
+  /** Callback for callers to know when the task has finished */
+  public interface Callback {
+    void onCopySuccessful(File file, String mimeType);
+
+    void onCopyFailed(Throwable throwable);
+  }
+}