Bug 963046 - Add Picasso image loading library to the tree (r=nalexander)

mobile/android/base/Makefile.in

@@ -64,6 +64,7 @@ ALL_JARS = \
   gecko-browser.jar \
   gecko-mozglue.jar \
   gecko-util.jar \
+  squareup-picasso.jar \
   sync-thirdparty.jar \
   websockets.jar \
   $(NULL)

mobile/android/base/moz.build

@@ -408,11 +408,48 @@ gbjar.generated_sources += sync_generated_java_files
 gbjar.extra_jars = [
     'gecko-mozglue.jar',
     'gecko-util.jar',
+    'squareup-picasso.jar',
     'sync-thirdparty.jar',
     'websockets.jar',
 ]
 gbjar.javac_flags += ['-Xlint:all,-deprecation,-fallthrough']
 
+spjar = add_java_jar('squareup-picasso')
+spjar.sources += [ thirdparty_source_dir + f for f in [
+    'com/squareup/picasso/Action.java',
+    'com/squareup/picasso/AssetBitmapHunter.java',
+    'com/squareup/picasso/BitmapHunter.java',
+    'com/squareup/picasso/Cache.java',
+    'com/squareup/picasso/Callback.java',
+    'com/squareup/picasso/ContactsPhotoBitmapHunter.java',
+    'com/squareup/picasso/ContentStreamBitmapHunter.java',
+    'com/squareup/picasso/DeferredRequestCreator.java',
+    'com/squareup/picasso/Dispatcher.java',
+    'com/squareup/picasso/Downloader.java',
+    'com/squareup/picasso/FetchAction.java',
+    'com/squareup/picasso/FileBitmapHunter.java',
+    'com/squareup/picasso/GetAction.java',
+    'com/squareup/picasso/ImageViewAction.java',
+    'com/squareup/picasso/LruCache.java',
+    'com/squareup/picasso/MarkableInputStream.java',
+    'com/squareup/picasso/MediaStoreBitmapHunter.java',
+    'com/squareup/picasso/NetworkBitmapHunter.java',
+    'com/squareup/picasso/Picasso.java',
+    'com/squareup/picasso/PicassoDrawable.java',
+    'com/squareup/picasso/PicassoExecutorService.java',
+    'com/squareup/picasso/Request.java',
+    'com/squareup/picasso/RequestCreator.java',
+    'com/squareup/picasso/ResourceBitmapHunter.java',
+    'com/squareup/picasso/Stats.java',
+    'com/squareup/picasso/StatsSnapshot.java',
+    'com/squareup/picasso/Target.java',
+    'com/squareup/picasso/TargetAction.java',
+    'com/squareup/picasso/Transformation.java',
+    'com/squareup/picasso/UrlConnectionDownloader.java',
+    'com/squareup/picasso/Utils.java',
+] ]
+#spjar.javac_flags += ['-Xlint:all']
+
 ANDROID_RES_DIRS += [
     SRCDIR + '/resources',
     TOPSRCDIR + '/' + CONFIG['MOZ_BRANDING_DIRECTORY'] + '/res',

mobile/android/thirdparty/com/squareup/picasso/Action.java

@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import android.graphics.Bitmap;
+import android.graphics.drawable.Drawable;
+import java.lang.ref.ReferenceQueue;
+import java.lang.ref.WeakReference;
+
+abstract class Action<T> {
+  static class RequestWeakReference<T> extends WeakReference<T> {
+    final Action action;
+
+    public RequestWeakReference(Action action, T referent, ReferenceQueue<? super T> q) {
+      super(referent, q);
+      this.action = action;
+    }
+  }
+
+  final Picasso picasso;
+  final Request data;
+  final WeakReference<T> target;
+  final boolean skipCache;
+  final boolean noFade;
+  final int errorResId;
+  final Drawable errorDrawable;
+  final String key;
+
+  boolean cancelled;
+
+  Action(Picasso picasso, T target, Request data, boolean skipCache, boolean noFade,
+      int errorResId, Drawable errorDrawable, String key) {
+    this.picasso = picasso;
+    this.data = data;
+    this.target = new RequestWeakReference<T>(this, target, picasso.referenceQueue);
+    this.skipCache = skipCache;
+    this.noFade = noFade;
+    this.errorResId = errorResId;
+    this.errorDrawable = errorDrawable;
+    this.key = key;
+  }
+
+  abstract void complete(Bitmap result, Picasso.LoadedFrom from);
+
+  abstract void error();
+
+  void cancel() {
+    cancelled = true;
+  }
+
+  Request getData() {
+    return data;
+  }
+
+  T getTarget() {
+    return target.get();
+  }
+
+  String getKey() {
+    return key;
+  }
+
+  boolean isCancelled() {
+    return cancelled;
+  }
+
+  Picasso getPicasso() {
+    return picasso;
+  }
+}

mobile/android/thirdparty/com/squareup/picasso/AssetBitmapHunter.java

@@ -0,0 +1,51 @@
+package com.squareup.picasso;
+
+import android.content.Context;
+import android.content.res.AssetManager;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import java.io.IOException;
+import java.io.InputStream;
+
+import static com.squareup.picasso.Picasso.LoadedFrom.DISK;
+
+class AssetBitmapHunter extends BitmapHunter {
+  private AssetManager assetManager;
+
+  public AssetBitmapHunter(Context context, Picasso picasso, Dispatcher dispatcher, Cache cache,
+      Stats stats, Action action) {
+    super(picasso, dispatcher, cache, stats, action);
+    assetManager = context.getAssets();
+  }
+
+  @Override Bitmap decode(Request data) throws IOException {
+    String filePath = data.uri.toString().substring(ASSET_PREFIX_LENGTH);
+    return decodeAsset(filePath);
+  }
+
+  @Override Picasso.LoadedFrom getLoadedFrom() {
+    return DISK;
+  }
+
+  Bitmap decodeAsset(String filePath) throws IOException {
+    BitmapFactory.Options options = null;
+    if (data.hasSize()) {
+      options = new BitmapFactory.Options();
+      options.inJustDecodeBounds = true;
+      InputStream is = null;
+      try {
+        is = assetManager.open(filePath);
+        BitmapFactory.decodeStream(is, null, options);
+      } finally {
+        Utils.closeQuietly(is);
+      }
+      calculateInSampleSize(data.targetWidth, data.targetHeight, options);
+    }
+    InputStream is = assetManager.open(filePath);
+    try {
+      return BitmapFactory.decodeStream(is, null, options);
+    } finally {
+      Utils.closeQuietly(is);
+    }
+  }
+}

mobile/android/thirdparty/com/squareup/picasso/BitmapHunter.java

@@ -0,0 +1,357 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.graphics.Matrix;
+import android.net.NetworkInfo;
+import android.net.Uri;
+import android.provider.MediaStore;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.Future;
+
+import static android.content.ContentResolver.SCHEME_ANDROID_RESOURCE;
+import static android.content.ContentResolver.SCHEME_CONTENT;
+import static android.content.ContentResolver.SCHEME_FILE;
+import static android.provider.ContactsContract.Contacts;
+import static com.squareup.picasso.Picasso.LoadedFrom.MEMORY;
+
+abstract class BitmapHunter implements Runnable {
+
+  /**
+   * Global lock for bitmap decoding to ensure that we are only are decoding one at a time. Since
+   * this will only ever happen in background threads we help avoid excessive memory thrashing as
+   * well as potential OOMs. Shamelessly stolen from Volley.
+   */
+  private static final Object DECODE_LOCK = new Object();
+  private static final String ANDROID_ASSET = "android_asset";
+  protected static final int ASSET_PREFIX_LENGTH =
+      (SCHEME_FILE + ":///" + ANDROID_ASSET + "/").length();
+
+  final Picasso picasso;
+  final Dispatcher dispatcher;
+  final Cache cache;
+  final Stats stats;
+  final String key;
+  final Request data;
+  final List<Action> actions;
+  final boolean skipMemoryCache;
+
+  Bitmap result;
+  Future<?> future;
+  Picasso.LoadedFrom loadedFrom;
+  Exception exception;
+  int exifRotation; // Determined during decoding of original resource.
+
+  BitmapHunter(Picasso picasso, Dispatcher dispatcher, Cache cache, Stats stats, Action action) {
+    this.picasso = picasso;
+    this.dispatcher = dispatcher;
+    this.cache = cache;
+    this.stats = stats;
+    this.key = action.getKey();
+    this.data = action.getData();
+    this.skipMemoryCache = action.skipCache;
+    this.actions = new ArrayList<Action>(4);
+    attach(action);
+  }
+
+  protected void setExifRotation(int exifRotation) {
+    this.exifRotation = exifRotation;
+  }
+
+  @Override public void run() {
+    try {
+      Thread.currentThread().setName(Utils.THREAD_PREFIX + data.getName());
+
+      result = hunt();
+
+      if (result == null) {
+        dispatcher.dispatchFailed(this);
+      } else {
+        dispatcher.dispatchComplete(this);
+      }
+    } catch (Downloader.ResponseException e) {
+      exception = e;
+      dispatcher.dispatchFailed(this);
+    } catch (IOException e) {
+      exception = e;
+      dispatcher.dispatchRetry(this);
+    } catch (OutOfMemoryError e) {
+      StringWriter writer = new StringWriter();
+      stats.createSnapshot().dump(new PrintWriter(writer));
+      exception = new RuntimeException(writer.toString(), e);
+      dispatcher.dispatchFailed(this);
+    } catch (Exception e) {
+      exception = e;
+      dispatcher.dispatchFailed(this);
+    } finally {
+      Thread.currentThread().setName(Utils.THREAD_IDLE_NAME);
+    }
+  }
+
+  abstract Bitmap decode(Request data) throws IOException;
+
+  Bitmap hunt() throws IOException {
+    Bitmap bitmap;
+
+    if (!skipMemoryCache) {
+      bitmap = cache.get(key);
+      if (bitmap != null) {
+        stats.dispatchCacheHit();
+        loadedFrom = MEMORY;
+        return bitmap;
+      }
+    }
+
+    bitmap = decode(data);
+
+    if (bitmap != null) {
+      stats.dispatchBitmapDecoded(bitmap);
+      if (data.needsTransformation() || exifRotation != 0) {
+        synchronized (DECODE_LOCK) {
+          if (data.needsMatrixTransform() || exifRotation != 0) {
+            bitmap = transformResult(data, bitmap, exifRotation);
+          }
+          if (data.hasCustomTransformations()) {
+            bitmap = applyCustomTransformations(data.transformations, bitmap);
+          }
+        }
+        stats.dispatchBitmapTransformed(bitmap);
+      }
+    }
+
+    return bitmap;
+  }
+
+  void attach(Action action) {
+    actions.add(action);
+  }
+
+  void detach(Action action) {
+    actions.remove(action);
+  }
+
+  boolean cancel() {
+    return actions.isEmpty() && future != null && future.cancel(false);
+  }
+
+  boolean isCancelled() {
+    return future != null && future.isCancelled();
+  }
+
+  boolean shouldSkipMemoryCache() {
+    return skipMemoryCache;
+  }
+
+  boolean shouldRetry(boolean airplaneMode, NetworkInfo info) {
+    return false;
+  }
+
+  Bitmap getResult() {
+    return result;
+  }
+
+  String getKey() {
+    return key;
+  }
+
+  Request getData() {
+    return data;
+  }
+
+  List<Action> getActions() {
+    return actions;
+  }
+
+  Exception getException() {
+    return exception;
+  }
+
+  Picasso.LoadedFrom getLoadedFrom() {
+    return loadedFrom;
+  }
+
+  static BitmapHunter forRequest(Context context, Picasso picasso, Dispatcher dispatcher,
+      Cache cache, Stats stats, Action action, Downloader downloader) {
+    if (action.getData().resourceId != 0) {
+      return new ResourceBitmapHunter(context, picasso, dispatcher, cache, stats, action);
+    }
+    Uri uri = action.getData().uri;
+    String scheme = uri.getScheme();
+    if (SCHEME_CONTENT.equals(scheme)) {
+      if (Contacts.CONTENT_URI.getHost().equals(uri.getHost()) //
+          && !uri.getPathSegments().contains(Contacts.Photo.CONTENT_DIRECTORY)) {
+        return new ContactsPhotoBitmapHunter(context, picasso, dispatcher, cache, stats, action);
+      } else if (MediaStore.AUTHORITY.equals(uri.getAuthority())) {
+        return new MediaStoreBitmapHunter(context, picasso, dispatcher, cache, stats, action);
+      } else {
+        return new ContentStreamBitmapHunter(context, picasso, dispatcher, cache, stats, action);
+      }
+    } else if (SCHEME_FILE.equals(scheme)) {
+      if (!uri.getPathSegments().isEmpty() && ANDROID_ASSET.equals(uri.getPathSegments().get(0))) {
+        return new AssetBitmapHunter(context, picasso, dispatcher, cache, stats, action);
+      }
+      return new FileBitmapHunter(context, picasso, dispatcher, cache, stats, action);
+    } else if (SCHEME_ANDROID_RESOURCE.equals(scheme)) {
+      return new ResourceBitmapHunter(context, picasso, dispatcher, cache, stats, action);
+    } else {
+      return new NetworkBitmapHunter(picasso, dispatcher, cache, stats, action, downloader);
+    }
+  }
+
+  static void calculateInSampleSize(int reqWidth, int reqHeight, BitmapFactory.Options options) {
+    calculateInSampleSize(reqWidth, reqHeight, options.outWidth, options.outHeight, options);
+  }
+
+  static void calculateInSampleSize(int reqWidth, int reqHeight, int width, int height,
+      BitmapFactory.Options options) {
+    int sampleSize = 1;
+    if (height > reqHeight || width > reqWidth) {
+      final int heightRatio = Math.round((float) height / (float) reqHeight);
+      final int widthRatio = Math.round((float) width / (float) reqWidth);
+      sampleSize = heightRatio < widthRatio ? heightRatio : widthRatio;
+    }
+
+    options.inSampleSize = sampleSize;
+    options.inJustDecodeBounds = false;
+  }
+
+  static Bitmap applyCustomTransformations(List<Transformation> transformations, Bitmap result) {
+    for (int i = 0, count = transformations.size(); i < count; i++) {
+      final Transformation transformation = transformations.get(i);
+      Bitmap newResult = transformation.transform(result);
+
+      if (newResult == null) {
+        final StringBuilder builder = new StringBuilder() //
+            .append("Transformation ")
+            .append(transformation.key())
+            .append(" returned null after ")
+            .append(i)
+            .append(" previous transformation(s).\n\nTransformation list:\n");
+        for (Transformation t : transformations) {
+          builder.append(t.key()).append('\n');
+        }
+        Picasso.HANDLER.post(new Runnable() {
+          @Override public void run() {
+            throw new NullPointerException(builder.toString());
+          }
+        });
+        return null;
+      }
+
+      if (newResult == result && result.isRecycled()) {
+        Picasso.HANDLER.post(new Runnable() {
+          @Override public void run() {
+            throw new IllegalStateException("Transformation "
+                + transformation.key()
+                + " returned input Bitmap but recycled it.");
+          }
+        });
+        return null;
+      }
+
+      // If the transformation returned a new bitmap ensure they recycled the original.
+      if (newResult != result && !result.isRecycled()) {
+        Picasso.HANDLER.post(new Runnable() {
+          @Override public void run() {
+            throw new IllegalStateException("Transformation "
+                + transformation.key()
+                + " mutated input Bitmap but failed to recycle the original.");
+          }
+        });
+        return null;
+      }
+
+      result = newResult;
+    }
+    return result;
+  }
+
+  static Bitmap transformResult(Request data, Bitmap result, int exifRotation) {
+    int inWidth = result.getWidth();
+    int inHeight = result.getHeight();
+
+    int drawX = 0;
+    int drawY = 0;
+    int drawWidth = inWidth;
+    int drawHeight = inHeight;
+
+    Matrix matrix = new Matrix();
+
+    if (data.needsMatrixTransform()) {
+      int targetWidth = data.targetWidth;
+      int targetHeight = data.targetHeight;
+
+      float targetRotation = data.rotationDegrees;
+      if (targetRotation != 0) {
+        if (data.hasRotationPivot) {
+          matrix.setRotate(targetRotation, data.rotationPivotX, data.rotationPivotY);
+        } else {
+          matrix.setRotate(targetRotation);
+        }
+      }
+
+      if (data.centerCrop) {
+        float widthRatio = targetWidth / (float) inWidth;
+        float heightRatio = targetHeight / (float) inHeight;
+        float scale;
+        if (widthRatio > heightRatio) {
+          scale = widthRatio;
+          int newSize = (int) Math.ceil(inHeight * (heightRatio / widthRatio));
+          drawY = (inHeight - newSize) / 2;
+          drawHeight = newSize;
+        } else {
+          scale = heightRatio;
+          int newSize = (int) Math.ceil(inWidth * (widthRatio / heightRatio));
+          drawX = (inWidth - newSize) / 2;
+          drawWidth = newSize;
+        }
+        matrix.preScale(scale, scale);
+      } else if (data.centerInside) {
+        float widthRatio = targetWidth / (float) inWidth;
+        float heightRatio = targetHeight / (float) inHeight;
+        float scale = widthRatio < heightRatio ? widthRatio : heightRatio;
+        matrix.preScale(scale, scale);
+      } else if (targetWidth != 0 && targetHeight != 0 //
+          && (targetWidth != inWidth || targetHeight != inHeight)) {
+        // If an explicit target size has been specified and they do not match the results bounds,
+        // pre-scale the existing matrix appropriately.
+        float sx = targetWidth / (float) inWidth;
+        float sy = targetHeight / (float) inHeight;
+        matrix.preScale(sx, sy);
+      }
+    }
+
+    if (exifRotation != 0) {
+      matrix.preRotate(exifRotation);
+    }
+
+    Bitmap newResult =
+        Bitmap.createBitmap(result, drawX, drawY, drawWidth, drawHeight, matrix, true);
+    if (newResult != result) {
+      result.recycle();
+      result = newResult;
+    }
+
+    return result;
+  }
+}

mobile/android/thirdparty/com/squareup/picasso/Cache.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import android.graphics.Bitmap;
+
+/**
+ * A memory cache for storing the most recently used images.
+ * <p/>
+ * <em>Note:</em> The {@link Cache} is accessed by multiple threads. You must ensure
+ * your {@link Cache} implementation is thread safe when {@link Cache#get(String)} or {@link
+ * Cache#set(String, android.graphics.Bitmap)} is called.
+ */
+public interface Cache {
+  /** Retrieve an image for the specified {@code key} or {@code null}. */
+  Bitmap get(String key);
+
+  /** Store an image in the cache for the specified {@code key}. */
+  void set(String key, Bitmap bitmap);
+
+  /** Returns the current size of the cache in bytes. */
+  int size();
+
+  /** Returns the maximum size in bytes that the cache can hold. */
+  int maxSize();
+
+  /** Clears the cache. */
+  void clear();
+
+  /** A cache which does not store any values. */
+  Cache NONE = new Cache() {
+    @Override public Bitmap get(String key) {
+      return null;
+    }
+
+    @Override public void set(String key, Bitmap bitmap) {
+      // Ignore.
+    }
+
+    @Override public int size() {
+      return 0;
+    }
+
+    @Override public int maxSize() {
+      return 0;
+    }
+
+    @Override public void clear() {
+    }
+  };
+}

mobile/android/thirdparty/com/squareup/picasso/Callback.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+public interface Callback {
+  void onSuccess();
+
+  void onError();
+
+  public static class EmptyCallback implements Callback {
+
+    @Override public void onSuccess() {
+    }
+
+    @Override public void onError() {
+    }
+  }
+}

mobile/android/thirdparty/com/squareup/picasso/ContactsPhotoBitmapHunter.java

@@ -0,0 +1,130 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import android.annotation.TargetApi;
+import android.content.ContentResolver;
+import android.content.Context;
+import android.content.UriMatcher;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.net.Uri;
+import android.provider.ContactsContract;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+import static android.os.Build.VERSION.SDK_INT;
+import static android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH;
+import static android.provider.ContactsContract.Contacts.openContactPhotoInputStream;
+import static com.squareup.picasso.Picasso.LoadedFrom.DISK;
+
+class ContactsPhotoBitmapHunter extends BitmapHunter {
+  /** A lookup uri (e.g. content://com.android.contacts/contacts/lookup/3570i61d948d30808e537) */
+  private static final int ID_LOOKUP = 1;
+  /** A contact thumbnail uri (e.g. content://com.android.contacts/contacts/38/photo) */
+  private static final int ID_THUMBNAIL = 2;
+  /** A contact uri (e.g. content://com.android.contacts/contacts/38) */
+  private static final int ID_CONTACT = 3;
+  /**
+   * A contact display photo (high resolution) uri
+   * (e.g. content://com.android.contacts/display_photo/5)
+   */
+  private static final int ID_DISPLAY_PHOTO = 4;
+
+  private static final UriMatcher matcher;
+
+  static {
+    matcher = new UriMatcher(UriMatcher.NO_MATCH);
+    matcher.addURI(ContactsContract.AUTHORITY, "contacts/lookup/*/#", ID_LOOKUP);
+    matcher.addURI(ContactsContract.AUTHORITY, "contacts/lookup/*", ID_LOOKUP);
+    matcher.addURI(ContactsContract.AUTHORITY, "contacts/#/photo", ID_THUMBNAIL);
+    matcher.addURI(ContactsContract.AUTHORITY, "contacts/#", ID_CONTACT);
+    matcher.addURI(ContactsContract.AUTHORITY, "display_photo/#", ID_DISPLAY_PHOTO);
+  }
+
+  final Context context;
+
+  ContactsPhotoBitmapHunter(Context context, Picasso picasso, Dispatcher dispatcher, Cache cache,
+      Stats stats, Action action) {
+    super(picasso, dispatcher, cache, stats, action);
+    this.context = context;
+  }
+
+  @Override Bitmap decode(Request data) throws IOException {
+    InputStream is = null;
+    try {
+      is = getInputStream();
+      return decodeStream(is, data);
+    } finally {
+      Utils.closeQuietly(is);
+    }
+  }
+
+  @Override Picasso.LoadedFrom getLoadedFrom() {
+    return DISK;
+  }
+
+  private InputStream getInputStream() throws IOException {
+    ContentResolver contentResolver = context.getContentResolver();
+    Uri uri = getData().uri;
+    switch (matcher.match(uri)) {
+      case ID_LOOKUP:
+        uri = ContactsContract.Contacts.lookupContact(contentResolver, uri);
+        if (uri == null) {
+          return null;
+        }
+        // Resolved the uri to a contact uri, intentionally fall through to process the resolved uri
+      case ID_CONTACT:
+        if (SDK_INT < ICE_CREAM_SANDWICH) {
+          return openContactPhotoInputStream(contentResolver, uri);
+        } else {
+          return ContactPhotoStreamIcs.get(contentResolver, uri);
+        }
+      case ID_THUMBNAIL:
+      case ID_DISPLAY_PHOTO:
+        return contentResolver.openInputStream(uri);
+      default:
+        throw new IllegalStateException("Invalid uri: " + uri);
+    }
+  }
+
+  private Bitmap decodeStream(InputStream stream, Request data) throws IOException {
+    if (stream == null) {
+      return null;
+    }
+    BitmapFactory.Options options = null;
+    if (data.hasSize()) {
+      options = new BitmapFactory.Options();
+      options.inJustDecodeBounds = true;
+      InputStream is = getInputStream();
+      try {
+        BitmapFactory.decodeStream(is, null, options);
+      } finally {
+        Utils.closeQuietly(is);
+      }
+      calculateInSampleSize(data.targetWidth, data.targetHeight, options);
+    }
+    return BitmapFactory.decodeStream(stream, null, options);
+  }
+
+  @TargetApi(ICE_CREAM_SANDWICH)
+  private static class ContactPhotoStreamIcs {
+    static InputStream get(ContentResolver contentResolver, Uri uri) {
+      return openContactPhotoInputStream(contentResolver, uri, true);
+    }
+  }
+}

mobile/android/thirdparty/com/squareup/picasso/ContentStreamBitmapHunter.java

@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import android.content.ContentResolver;
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import java.io.IOException;
+import java.io.InputStream;
+
+import static com.squareup.picasso.Picasso.LoadedFrom.DISK;
+
+class ContentStreamBitmapHunter extends BitmapHunter {
+  final Context context;
+
+  ContentStreamBitmapHunter(Context context, Picasso picasso, Dispatcher dispatcher, Cache cache,
+      Stats stats, Action action) {
+    super(picasso, dispatcher, cache, stats, action);
+    this.context = context;
+  }
+
+  @Override Bitmap decode(Request data)
+      throws IOException {
+    return decodeContentStream(data);
+  }
+
+  @Override Picasso.LoadedFrom getLoadedFrom() {
+    return DISK;
+  }
+
+  protected Bitmap decodeContentStream(Request data) throws IOException {
+    ContentResolver contentResolver = context.getContentResolver();
+    BitmapFactory.Options options = null;
+    if (data.hasSize()) {
+      options = new BitmapFactory.Options();
+      options.inJustDecodeBounds = true;
+      InputStream is = null;
+      try {
+        is = contentResolver.openInputStream(data.uri);
+        BitmapFactory.decodeStream(is, null, options);
+      } finally {
+        Utils.closeQuietly(is);
+      }
+      calculateInSampleSize(data.targetWidth, data.targetHeight, options);
+    }
+    InputStream is = contentResolver.openInputStream(data.uri);
+    try {
+      return BitmapFactory.decodeStream(is, null, options);
+    } finally {
+      Utils.closeQuietly(is);
+    }
+  }
+}

mobile/android/thirdparty/com/squareup/picasso/DeferredRequestCreator.java

@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import android.view.ViewTreeObserver;
+import android.widget.ImageView;
+import java.lang.ref.WeakReference;
+
+class DeferredRequestCreator implements ViewTreeObserver.OnPreDrawListener {
+
+  final RequestCreator creator;
+  final WeakReference<ImageView> target;
+  Callback callback;
+
+  DeferredRequestCreator(RequestCreator creator, ImageView target, Callback callback) {
+    this.creator = creator;
+    this.target = new WeakReference<ImageView>(target);
+    this.callback = callback;
+    target.getViewTreeObserver().addOnPreDrawListener(this);
+  }
+
+  @Override public boolean onPreDraw() {
+    ImageView target = this.target.get();
+    if (target == null) {
+      return true;
+    }
+    ViewTreeObserver vto = target.getViewTreeObserver();
+    if (!vto.isAlive()) {
+      return true;
+    }
+
+    int width = target.getMeasuredWidth();
+    int height = target.getMeasuredHeight();
+
+    if (width <= 0 || height <= 0) {
+      return true;
+    }
+
+    vto.removeOnPreDrawListener(this);
+
+    this.creator.unfit().resize(width, height).into(target, callback);
+    return true;
+  }
+
+  void cancel() {
+    callback = null;
+    ImageView target = this.target.get();
+    if (target == null) {
+      return;
+    }
+    ViewTreeObserver vto = target.getViewTreeObserver();
+    if (!vto.isAlive()) {
+      return;
+    }
+    vto.removeOnPreDrawListener(this);
+  }
+}

mobile/android/thirdparty/com/squareup/picasso/Dispatcher.java

@@ -0,0 +1,315 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import android.Manifest;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.net.ConnectivityManager;
+import android.net.NetworkInfo;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.HandlerThread;
+import android.os.Looper;
+import android.os.Message;
+import java.util.ArrayList;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ExecutorService;
+
+import static android.content.Context.CONNECTIVITY_SERVICE;
+import static android.content.Intent.ACTION_AIRPLANE_MODE_CHANGED;
+import static android.net.ConnectivityManager.CONNECTIVITY_ACTION;
+import static android.os.Process.THREAD_PRIORITY_BACKGROUND;
+import static com.squareup.picasso.BitmapHunter.forRequest;
+
+class Dispatcher {
+  private static final int RETRY_DELAY = 500;
+  private static final int AIRPLANE_MODE_ON = 1;
+  private static final int AIRPLANE_MODE_OFF = 0;
+
+  static final int REQUEST_SUBMIT = 1;
+  static final int REQUEST_CANCEL = 2;
+  static final int REQUEST_GCED = 3;
+  static final int HUNTER_COMPLETE = 4;
+  static final int HUNTER_RETRY = 5;
+  static final int HUNTER_DECODE_FAILED = 6;
+  static final int HUNTER_DELAY_NEXT_BATCH = 7;
+  static final int HUNTER_BATCH_COMPLETE = 8;
+  static final int NETWORK_STATE_CHANGE = 9;
+  static final int AIRPLANE_MODE_CHANGE = 10;
+
+  private static final String DISPATCHER_THREAD_NAME = "Dispatcher";
+  private static final int BATCH_DELAY = 200; // ms
+
+  final DispatcherThread dispatcherThread;
+  final Context context;
+  final ExecutorService service;
+  final Downloader downloader;
+  final Map<String, BitmapHunter> hunterMap;
+  final Handler handler;
+  final Handler mainThreadHandler;
+  final Cache cache;
+  final Stats stats;
+  final List<BitmapHunter> batch;
+  final NetworkBroadcastReceiver receiver;
+
+  NetworkInfo networkInfo;
+  boolean airplaneMode;
+
+  Dispatcher(Context context, ExecutorService service, Handler mainThreadHandler,
+      Downloader downloader, Cache cache, Stats stats) {
+    this.dispatcherThread = new DispatcherThread();
+    this.dispatcherThread.start();
+    this.context = context;
+    this.service = service;
+    this.hunterMap = new LinkedHashMap<String, BitmapHunter>();
+    this.handler = new DispatcherHandler(dispatcherThread.getLooper(), this);
+    this.downloader = downloader;
+    this.mainThreadHandler = mainThreadHandler;
+    this.cache = cache;
+    this.stats = stats;
+    this.batch = new ArrayList<BitmapHunter>(4);
+    this.airplaneMode = Utils.isAirplaneModeOn(this.context);
+    this.receiver = new NetworkBroadcastReceiver(this.context);
+    receiver.register();
+  }
+
+  void shutdown() {
+    service.shutdown();
+    dispatcherThread.quit();
+    receiver.unregister();
+  }
+
+  void dispatchSubmit(Action action) {
+    handler.sendMessage(handler.obtainMessage(REQUEST_SUBMIT, action));
+  }
+
+  void dispatchCancel(Action action) {
+    handler.sendMessage(handler.obtainMessage(REQUEST_CANCEL, action));
+  }
+
+  void dispatchComplete(BitmapHunter hunter) {
+    handler.sendMessage(handler.obtainMessage(HUNTER_COMPLETE, hunter));
+  }
+
+  void dispatchRetry(BitmapHunter hunter) {
+    handler.sendMessageDelayed(handler.obtainMessage(HUNTER_RETRY, hunter), RETRY_DELAY);
+  }
+
+  void dispatchFailed(BitmapHunter hunter) {
+    handler.sendMessage(handler.obtainMessage(HUNTER_DECODE_FAILED, hunter));
+  }
+
+  void dispatchNetworkStateChange(NetworkInfo info) {
+    handler.sendMessage(handler.obtainMessage(NETWORK_STATE_CHANGE, info));
+  }
+
+  void dispatchAirplaneModeChange(boolean airplaneMode) {
+    handler.sendMessage(handler.obtainMessage(AIRPLANE_MODE_CHANGE,
+        airplaneMode ? AIRPLANE_MODE_ON : AIRPLANE_MODE_OFF, 0));
+  }
+
+  void performSubmit(Action action) {
+    BitmapHunter hunter = hunterMap.get(action.getKey());
+    if (hunter != null) {
+      hunter.attach(action);
+      return;
+    }
+
+    if (service.isShutdown()) {
+      return;
+    }
+
+    hunter = forRequest(context, action.getPicasso(), this, cache, stats, action, downloader);
+    hunter.future = service.submit(hunter);
+    hunterMap.put(action.getKey(), hunter);
+  }
+
+  void performCancel(Action action) {
+    String key = action.getKey();
+    BitmapHunter hunter = hunterMap.get(key);
+    if (hunter != null) {
+      hunter.detach(action);
+      if (hunter.cancel()) {
+        hunterMap.remove(key);
+      }
+    }
+  }
+
+  void performRetry(BitmapHunter hunter) {
+    if (hunter.isCancelled()) return;
+
+    if (service.isShutdown()) {
+      performError(hunter);
+      return;
+    }
+
+    if (hunter.shouldRetry(airplaneMode, networkInfo)) {
+      hunter.future = service.submit(hunter);
+    } else {
+      performError(hunter);
+    }
+  }
+
+  void performComplete(BitmapHunter hunter) {
+    if (!hunter.shouldSkipMemoryCache()) {
+      cache.set(hunter.getKey(), hunter.getResult());
+    }
+    hunterMap.remove(hunter.getKey());
+    batch(hunter);
+  }
+
+  void performBatchComplete() {
+    List<BitmapHunter> copy = new ArrayList<BitmapHunter>(batch);
+    batch.clear();
+    mainThreadHandler.sendMessage(mainThreadHandler.obtainMessage(HUNTER_BATCH_COMPLETE, copy));
+  }
+
+  void performError(BitmapHunter hunter) {
+    hunterMap.remove(hunter.getKey());
+    batch(hunter);
+  }
+
+  void performAirplaneModeChange(boolean airplaneMode) {
+    this.airplaneMode = airplaneMode;
+  }
+
+  void performNetworkStateChange(NetworkInfo info) {
+    networkInfo = info;
+    if (service instanceof PicassoExecutorService) {
+      ((PicassoExecutorService) service).adjustThreadCount(info);
+    }
+  }
+
+  private void batch(BitmapHunter hunter) {
+    if (hunter.isCancelled()) {
+      return;
+    }
+    batch.add(hunter);
+    if (!handler.hasMessages(HUNTER_DELAY_NEXT_BATCH)) {
+      handler.sendEmptyMessageDelayed(HUNTER_DELAY_NEXT_BATCH, BATCH_DELAY);
+    }
+  }
+
+  private static class DispatcherHandler extends Handler {
+    private final Dispatcher dispatcher;
+
+    public DispatcherHandler(Looper looper, Dispatcher dispatcher) {
+      super(looper);
+      this.dispatcher = dispatcher;
+    }
+
+    @Override public void handleMessage(final Message msg) {
+      switch (msg.what) {
+        case REQUEST_SUBMIT: {
+          Action action = (Action) msg.obj;
+          dispatcher.performSubmit(action);
+          break;
+        }
+        case REQUEST_CANCEL: {
+          Action action = (Action) msg.obj;
+          dispatcher.performCancel(action);
+          break;
+        }
+        case HUNTER_COMPLETE: {
+          BitmapHunter hunter = (BitmapHunter) msg.obj;
+          dispatcher.performComplete(hunter);
+          break;
+        }
+        case HUNTER_RETRY: {
+          BitmapHunter hunter = (BitmapHunter) msg.obj;
+          dispatcher.performRetry(hunter);
+          break;
+        }
+        case HUNTER_DECODE_FAILED: {
+          BitmapHunter hunter = (BitmapHunter) msg.obj;
+          dispatcher.performError(hunter);
+          break;
+        }
+        case HUNTER_DELAY_NEXT_BATCH: {
+          dispatcher.performBatchComplete();
+          break;
+        }
+        case NETWORK_STATE_CHANGE: {
+          NetworkInfo info = (NetworkInfo) msg.obj;
+          dispatcher.performNetworkStateChange(info);
+          break;
+        }
+        case AIRPLANE_MODE_CHANGE: {
+          dispatcher.performAirplaneModeChange(msg.arg1 == AIRPLANE_MODE_ON);
+          break;
+        }
+        default:
+          Picasso.HANDLER.post(new Runnable() {
+            @Override public void run() {
+              throw new AssertionError("Unknown handler message received: " + msg.what);
+            }
+          });
+      }
+    }
+  }
+
+  static class DispatcherThread extends HandlerThread {
+    DispatcherThread() {
+      super(Utils.THREAD_PREFIX + DISPATCHER_THREAD_NAME, THREAD_PRIORITY_BACKGROUND);
+    }
+  }
+
+  private class NetworkBroadcastReceiver extends BroadcastReceiver {
+    private static final String EXTRA_AIRPLANE_STATE = "state";
+
+    private final ConnectivityManager connectivityManager;
+
+    NetworkBroadcastReceiver(Context context) {
+      connectivityManager = (ConnectivityManager) context.getSystemService(CONNECTIVITY_SERVICE);
+    }
+
+    void register() {
+      boolean shouldScanState = service instanceof PicassoExecutorService && //
+          Utils.hasPermission(context, Manifest.permission.ACCESS_NETWORK_STATE);
+      IntentFilter filter = new IntentFilter();
+      filter.addAction(ACTION_AIRPLANE_MODE_CHANGED);
+      if (shouldScanState) {
+        filter.addAction(CONNECTIVITY_ACTION);
+      }
+      context.registerReceiver(this, filter);
+    }
+
+    void unregister() {
+      context.unregisterReceiver(this);
+    }
+
+    @Override public void onReceive(Context context, Intent intent) {
+      // On some versions of Android this may be called with a null Intent
+      if (null == intent) {
+        return;
+      }
+
+      String action = intent.getAction();
+      Bundle extras = intent.getExtras();
+
+      if (ACTION_AIRPLANE_MODE_CHANGED.equals(action)) {
+        dispatchAirplaneModeChange(extras.getBoolean(EXTRA_AIRPLANE_STATE, false));
+      } else if (CONNECTIVITY_ACTION.equals(action)) {
+        dispatchNetworkStateChange(connectivityManager.getActiveNetworkInfo());
+      }
+    }
+  }
+}

mobile/android/thirdparty/com/squareup/picasso/Downloader.java

@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import android.graphics.Bitmap;
+import android.net.Uri;
+import java.io.IOException;
+import java.io.InputStream;
+
+/** A mechanism to load images from external resources such as a disk cache and/or the internet. */
+public interface Downloader {
+  /**
+   * Download the specified image {@code url} from the internet.
+   *
+   * @param uri Remote image URL.
+   * @param localCacheOnly If {@code true} the URL should only be loaded if available in a local
+   * disk cache.
+   * @return {@link Response} containing either a {@link Bitmap} representation of the request or an
+   * {@link InputStream} for the image data. {@code null} can be returned to indicate a problem
+   * loading the bitmap.
+   * @throws IOException if the requested URL cannot successfully be loaded.
+   */
+  Response load(Uri uri, boolean localCacheOnly) throws IOException;
+
+  /** Thrown for non-2XX responses. */
+  class ResponseException extends IOException {
+    public ResponseException(String message) {
+      super(message);
+    }
+  }
+
+  /** Response stream or bitmap and info. */
+  class Response {
+    final InputStream stream;
+    final Bitmap bitmap;
+    final boolean cached;
+
+    /**
+     * Response image and info.
+     *
+     * @param bitmap Image.
+     * @param loadedFromCache {@code true} if the source of the image is from a local disk cache.
+     */
+    public Response(Bitmap bitmap, boolean loadedFromCache) {
+      if (bitmap == null) {
+        throw new IllegalArgumentException("Bitmap may not be null.");
+      }
+      this.stream = null;
+      this.bitmap = bitmap;
+      this.cached = loadedFromCache;
+    }
+
+    /**
+     * Response stream and info.
+     *
+     * @param stream Image data stream.
+     * @param loadedFromCache {@code true} if the source of the stream is from a local disk cache.
+     */
+    public Response(InputStream stream, boolean loadedFromCache) {
+      if (stream == null) {
+        throw new IllegalArgumentException("Stream may not be null.");
+      }
+      this.stream = stream;
+      this.bitmap = null;
+      this.cached = loadedFromCache;
+    }
+
+    /**
+     * Input stream containing image data.
+     * <p>
+     * If this returns {@code null}, image data will be available via {@link #getBitmap()}.
+     */
+    public InputStream getInputStream() {
+      return stream;
+    }
+
+    /**
+     * Bitmap representing the image.
+     * <p>
+     * If this returns {@code null}, image data will be available via {@link #getInputStream()}.
+     */
+    public Bitmap getBitmap() {
+      return bitmap;
+    }
+  }
+}

mobile/android/thirdparty/com/squareup/picasso/FetchAction.java

@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import android.graphics.Bitmap;
+
+class FetchAction extends Action<Void> {
+  FetchAction(Picasso picasso, Request data, boolean skipCache, String key) {
+    super(picasso, null, data, skipCache, false, 0, null, key);
+  }
+
+  @Override void complete(Bitmap result, Picasso.LoadedFrom from) {
+  }
+
+  @Override public void error() {
+  }
+}

mobile/android/thirdparty/com/squareup/picasso/FileBitmapHunter.java

@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.media.ExifInterface;
+import android.net.Uri;
+import java.io.IOException;
+
+import static android.media.ExifInterface.ORIENTATION_NORMAL;
+import static android.media.ExifInterface.ORIENTATION_ROTATE_180;
+import static android.media.ExifInterface.ORIENTATION_ROTATE_270;
+import static android.media.ExifInterface.ORIENTATION_ROTATE_90;
+import static android.media.ExifInterface.TAG_ORIENTATION;
+
+class FileBitmapHunter extends ContentStreamBitmapHunter {
+
+  FileBitmapHunter(Context context, Picasso picasso, Dispatcher dispatcher, Cache cache,
+      Stats stats, Action action) {
+    super(context, picasso, dispatcher, cache, stats, action);
+  }
+
+  @Override Bitmap decode(Request data)
+      throws IOException {
+    setExifRotation(getFileExifRotation(data.uri));
+    return super.decode(data);
+  }
+
+  static int getFileExifRotation(Uri uri) throws IOException {
+    ExifInterface exifInterface = new ExifInterface(uri.getPath());
+    int orientation = exifInterface.getAttributeInt(TAG_ORIENTATION, ORIENTATION_NORMAL);
+    switch (orientation) {
+      case ORIENTATION_ROTATE_90:
+        return 90;
+      case ORIENTATION_ROTATE_180:
+        return 180;
+      case ORIENTATION_ROTATE_270:
+        return 270;
+      default:
+        return 0;
+    }
+  }
+}

mobile/android/thirdparty/com/squareup/picasso/GetAction.java

@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import android.graphics.Bitmap;
+
+class GetAction extends Action<Void> {
+  GetAction(Picasso picasso, Request data, boolean skipCache, String key) {
+    super(picasso, null, data, skipCache, false, 0, null, key);
+  }
+
+  @Override void complete(Bitmap result, Picasso.LoadedFrom from) {
+  }
+
+  @Override public void error() {
+  }
+}

mobile/android/thirdparty/com/squareup/picasso/ImageViewAction.java

@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.drawable.Drawable;
+import android.widget.ImageView;
+
+class ImageViewAction extends Action<ImageView> {
+
+  Callback callback;
+
+  ImageViewAction(Picasso picasso, ImageView imageView, Request data, boolean skipCache,
+      boolean noFade, int errorResId, Drawable errorDrawable, String key, Callback callback) {
+    super(picasso, imageView, data, skipCache, noFade, errorResId, errorDrawable, key);
+    this.callback = callback;
+  }
+
+  @Override public void complete(Bitmap result, Picasso.LoadedFrom from) {
+    if (result == null) {
+      throw new AssertionError(
+          String.format("Attempted to complete action with no result!\n%s", this));
+    }
+
+    ImageView target = this.target.get();
+    if (target == null) {
+      return;
+    }
+
+    Context context = picasso.context;
+    boolean debugging = picasso.debugging;
+    PicassoDrawable.setBitmap(target, context, result, from, noFade, debugging);
+
+    if (callback != null) {
+      callback.onSuccess();
+    }
+  }
+
+  @Override public void error() {
+    ImageView target = this.target.get();
+    if (target == null) {
+      return;
+    }
+    if (errorResId != 0) {
+      target.setImageResource(errorResId);
+    } else if (errorDrawable != null) {
+      target.setImageDrawable(errorDrawable);
+    }
+
+    if (callback != null) {
+      callback.onError();
+    }
+  }
+
+  @Override void cancel() {
+    super.cancel();
+    if (callback != null) {
+      callback = null;
+    }
+  }
+}

mobile/android/thirdparty/com/squareup/picasso/LruCache.java

@@ -0,0 +1,146 @@
+/*
+ * Copyright (C) 2011 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.squareup.picasso;
+
+import android.content.Context;
+import android.graphics.Bitmap;
+import java.util.LinkedHashMap;
+import java.util.Map;
+
+/** A memory cache which uses a least-recently used eviction policy. */
+public class LruCache implements Cache {
+  final LinkedHashMap<String, Bitmap> map;
+  private final int maxSize;
+
+  private int size;
+  private int putCount;
+  private int evictionCount;
+  private int hitCount;
+  private int missCount;
+
+  /** Create a cache using an appropriate portion of the available RAM as the maximum size. */
+  public LruCache(Context context) {
+    this(Utils.calculateMemoryCacheSize(context));
+  }
+
+  /** Create a cache with a given maximum size in bytes. */
+  public LruCache(int maxSize) {
+    if (maxSize <= 0) {
+      throw new IllegalArgumentException("Max size must be positive.");
+    }
+    this.maxSize = maxSize;
+    this.map = new LinkedHashMap<String, Bitmap>(0, 0.75f, true);
+  }
+
+  @Override public Bitmap get(String key) {
+    if (key == null) {
+      throw new NullPointerException("key == null");
+    }
+
+    Bitmap mapValue;
+    synchronized (this) {
+      mapValue = map.get(key);
+      if (mapValue != null) {
+        hitCount++;
+        return mapValue;
+      }
+      missCount++;
+    }
+
+    return null;
+  }
+
+  @Override public void set(String key, Bitmap bitmap) {
+    if (key == null || bitmap == null) {
+      throw new NullPointerException("key == null || bitmap == null");
+    }
+
+    Bitmap previous;
+    synchronized (this) {
+      putCount++;
+      size += Utils.getBitmapBytes(bitmap);
+      previous = map.put(key, bitmap);
+      if (previous != null) {
+        size -= Utils.getBitmapBytes(previous);
+      }
+    }
+
+    trimToSize(maxSize);
+  }
+
+  private void trimToSize(int maxSize) {
+    while (true) {
+      String key;
+      Bitmap value;
+      synchronized (this) {
+        if (size < 0 || (map.isEmpty() && size != 0)) {
+          throw new IllegalStateException(
+              getClass().getName() + ".sizeOf() is reporting inconsistent results!");
+        }
+
+        if (size <= maxSize || map.isEmpty()) {
+          break;
+        }
+
+        Map.Entry<String, Bitmap> toEvict = map.entrySet().iterator().next();
+        key = toEvict.getKey();
+        value = toEvict.getValue();
+        map.remove(key);
+        size -= Utils.getBitmapBytes(value);
+        evictionCount++;
+      }
+    }
+  }
+
+  /** Clear the cache. */
+  public final void evictAll() {
+    trimToSize(-1); // -1 will evict 0-sized elements
+  }
+
+  /** Returns the sum of the sizes of the entries in this cache. */
+  public final synchronized int size() {
+    return size;
+  }
+
+  /** Returns the maximum sum of the sizes of the entries in this cache. */
+  public final synchronized int maxSize() {
+    return maxSize;
+  }
+
+  public final synchronized void clear() {
+    evictAll();
+  }
+
+  /** Returns the number of times {@link #get} returned a value. */
+  public final synchronized int hitCount() {
+    return hitCount;
+  }
+
+  /** Returns the number of times {@link #get} returned {@code null}. */
+  public final synchronized int missCount() {
+    return missCount;
+  }
+
+  /** Returns the number of times {@link #set(String, Bitmap)} was called. */
+  public final synchronized int putCount() {
+    return putCount;
+  }
+
+  /** Returns the number of values that have been evicted. */
+  public final synchronized int evictionCount() {
+    return evictionCount;
+  }
+}

mobile/android/thirdparty/com/squareup/picasso/MarkableInputStream.java

@@ -0,0 +1,157 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import java.io.BufferedInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+
+/**
+ * An input stream wrapper that supports unlimited independent cursors for
+ * marking and resetting. Each cursor is a token, and it's the caller's
+ * responsibility to keep track of these.
+ */
+final class MarkableInputStream extends InputStream {
+  private final InputStream in;
+
+  private long offset;
+  private long reset;
+  private long limit;
+
+  private long defaultMark = -1;
+
+  public MarkableInputStream(InputStream in) {
+    if (!in.markSupported()) {
+      in = new BufferedInputStream(in);
+    }
+    this.in = in;
+  }
+
+  /** Marks this place in the stream so we can reset back to it later. */
+  @Override public void mark(int readLimit) {
+    defaultMark = savePosition(readLimit);
+  }
+
+  /**
+   * Returns an opaque token representing the current position in the stream.
+   * Call {@link #reset(long)} to return to this position in the stream later.
+   * It is an error to call {@link #reset(long)} after consuming more than
+   * {@code readLimit} bytes from this stream.
+   */
+  public long savePosition(int readLimit) {
+    long offsetLimit = offset + readLimit;
+    if (limit < offsetLimit) {
+      setLimit(offsetLimit);
+    }
+    return offset;
+  }
+
+  /**
+   * Makes sure that the underlying stream can backtrack the full range from
+   * {@code reset} thru {@code limit}. Since we can't call {@code mark()}
+   * without also adjusting the reset-to-position on the underlying stream this
+   * method resets first and then marks the union of the two byte ranges. On
+   * buffered streams this additional cursor motion shouldn't result in any
+   * additional I/O.
+   */
+  private void setLimit(long limit) {
+    try {
+      if (reset < offset && offset <= this.limit) {
+        in.reset();
+        in.mark((int) (limit - reset));
+        skip(reset, offset);
+      } else {
+        reset = offset;
+        in.mark((int) (limit - offset));
+      }
+      this.limit = limit;
+    } catch (IOException e) {
+      throw new IllegalStateException("Unable to mark: " + e);
+    }
+  }
+
+  /** Resets the stream to the most recent {@link #mark mark}. */
+  @Override public void reset() throws IOException {
+    reset(defaultMark);
+  }
+
+  /** Resets the stream to the position recorded by {@code token}. */
+  public void reset(long token) throws IOException {
+    if (offset > limit || token < reset) {
+      throw new IOException("Cannot reset");
+    }
+    in.reset();
+    skip(reset, token);
+    offset = token;
+  }
+
+  /** Skips {@code target - current} bytes and returns. */
+  private void skip(long current, long target) throws IOException {
+    while (current < target) {
+      long skipped = in.skip(target - current);
+      if (skipped == 0) {
+        if (read() == -1) {
+          break; // EOF
+        } else {
+          skipped = 1;
+        }
+      }
+      current += skipped;
+    }
+  }
+
+  @Override public int read() throws IOException {
+    int result = in.read();
+    if (result != -1) {
+      offset++;
+    }
+    return result;
+  }
+
+  @Override public int read(byte[] buffer) throws IOException {
+    int count = in.read(buffer);
+    if (count != -1) {
+      offset += count;
+    }
+    return count;
+  }
+
+  @Override public int read(byte[] buffer, int offset, int length) throws IOException {
+    int count = in.read(buffer, offset, length);
+    if (count != -1) {
+      this.offset += count;
+    }
+    return count;
+  }
+
+  @Override public long skip(long byteCount) throws IOException {
+    long skipped = in.skip(byteCount);
+    offset += skipped;
+    return skipped;
+  }
+
+  @Override public int available() throws IOException {
+    return in.available();
+  }
+
+  @Override public void close() throws IOException {
+    in.close();
+  }
+
+  @Override public boolean markSupported() {
+    return in.markSupported();
+  }
+}

mobile/android/thirdparty/com/squareup/picasso/MediaStoreBitmapHunter.java

@@ -0,0 +1,116 @@
+/*
+ * Copyright (C) 2014 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import android.content.ContentResolver;
+import android.content.Context;
+import android.database.Cursor;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.net.Uri;
+import android.provider.MediaStore;
+import java.io.IOException;
+
+import static android.content.ContentUris.parseId;
+import static android.provider.MediaStore.Images.Thumbnails.FULL_SCREEN_KIND;
+import static android.provider.MediaStore.Images.Thumbnails.MICRO_KIND;
+import static android.provider.MediaStore.Images.Thumbnails.MINI_KIND;
+import static android.provider.MediaStore.Images.Thumbnails.getThumbnail;
+import static com.squareup.picasso.MediaStoreBitmapHunter.PicassoKind.FULL;
+import static com.squareup.picasso.MediaStoreBitmapHunter.PicassoKind.MICRO;
+import static com.squareup.picasso.MediaStoreBitmapHunter.PicassoKind.MINI;
+
+class MediaStoreBitmapHunter extends ContentStreamBitmapHunter {
+  private static final String[] CONTENT_ORIENTATION = new String[] {
+      MediaStore.Images.ImageColumns.ORIENTATION
+  };
+
+  MediaStoreBitmapHunter(Context context, Picasso picasso, Dispatcher dispatcher, Cache cache,
+      Stats stats, Action action) {
+    super(context, picasso, dispatcher, cache, stats, action);
+  }
+
+  @Override Bitmap decode(Request data) throws IOException {
+    ContentResolver contentResolver = context.getContentResolver();
+    setExifRotation(getExitOrientation(contentResolver, data.uri));
+
+    if (data.hasSize()) {
+      PicassoKind picassoKind = getPicassoKind(data.targetWidth, data.targetHeight);
+      if (picassoKind == FULL) {
+        return super.decode(data);
+      }
+
+      long id = parseId(data.uri);
+
+      BitmapFactory.Options options = new BitmapFactory.Options();
+      options.inJustDecodeBounds = true;
+
+      calculateInSampleSize(data.targetWidth, data.targetHeight, picassoKind.width,
+          picassoKind.height, options);
+
+      Bitmap result = getThumbnail(contentResolver, id, picassoKind.androidKind, options);
+
+      if (result != null) {
+        return result;
+      }
+    }
+
+    return super.decode(data);
+  }
+
+  static PicassoKind getPicassoKind(int targetWidth, int targetHeight) {
+    if (targetWidth <= MICRO.width && targetHeight <= MICRO.height) {
+      return MICRO;
+    } else if (targetWidth <= MINI.width && targetHeight <= MINI.height) {
+      return MINI;
+    }
+    return FULL;
+  }
+
+  static int getExitOrientation(ContentResolver contentResolver, Uri uri) {
+    Cursor cursor = null;
+    try {
+      cursor = contentResolver.query(uri, CONTENT_ORIENTATION, null, null, null);
+      if (cursor == null || !cursor.moveToFirst()) {
+        return 0;
+      }
+      return cursor.getInt(0);
+    } catch (RuntimeException ignored) {
+      // If the orientation column doesn't exist, assume no rotation.
+      return 0;
+    } finally {
+      if (cursor != null) {
+        cursor.close();
+      }
+    }
+  }
+
+  enum PicassoKind {
+    MICRO(MICRO_KIND, 96, 96),
+    MINI(MINI_KIND, 512, 384),
+    FULL(FULL_SCREEN_KIND, -1, -1);
+
+    final int androidKind;
+    final int width;
+    final int height;
+
+    PicassoKind(int androidKind, int width, int height) {
+      this.androidKind = androidKind;
+      this.width = width;
+      this.height = height;
+    }
+  }
+}

mobile/android/thirdparty/com/squareup/picasso/NetworkBitmapHunter.java

@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.net.NetworkInfo;
+import java.io.IOException;
+import java.io.InputStream;
+
+import static com.squareup.picasso.Downloader.Response;
+import static com.squareup.picasso.Picasso.LoadedFrom.DISK;
+import static com.squareup.picasso.Picasso.LoadedFrom.NETWORK;
+
+class NetworkBitmapHunter extends BitmapHunter {
+  static final int DEFAULT_RETRY_COUNT = 2;
+  private static final int MARKER = 65536;
+
+  private final Downloader downloader;
+
+  int retryCount;
+
+  public NetworkBitmapHunter(Picasso picasso, Dispatcher dispatcher, Cache cache, Stats stats,
+      Action action, Downloader downloader) {
+    super(picasso, dispatcher, cache, stats, action);
+    this.downloader = downloader;
+    this.retryCount = DEFAULT_RETRY_COUNT;
+  }
+
+  @Override Bitmap decode(Request data) throws IOException {
+    boolean loadFromLocalCacheOnly = retryCount == 0;
+
+    Response response = downloader.load(data.uri, loadFromLocalCacheOnly);
+    if (response == null) {
+      return null;
+    }
+
+    loadedFrom = response.cached ? DISK : NETWORK;
+
+    Bitmap result = response.getBitmap();
+    if (result != null) {
+      return result;
+    }
+
+    InputStream is = response.getInputStream();
+    try {
+      return decodeStream(is, data);
+    } finally {
+      Utils.closeQuietly(is);
+    }
+  }
+
+  @Override boolean shouldRetry(boolean airplaneMode, NetworkInfo info) {
+    boolean hasRetries = retryCount > 0;
+    if (!hasRetries) {
+      return false;
+    }
+    retryCount--;
+    return info == null || info.isConnectedOrConnecting();
+  }
+
+  private Bitmap decodeStream(InputStream stream, Request data) throws IOException {
+    if (stream == null) {
+      return null;
+    }
+    MarkableInputStream markStream = new MarkableInputStream(stream);
+    stream = markStream;
+
+    long mark = markStream.savePosition(MARKER);
+
+    boolean isWebPFile = Utils.isWebPFile(stream);
+    markStream.reset(mark);
+    // When decode WebP network stream, BitmapFactory throw JNI Exception and make app crash.
+    // Decode byte array instead
+    if (isWebPFile) {
+      byte[] bytes = Utils.toByteArray(stream);
+      BitmapFactory.Options options = null;
+      if (data.hasSize()) {
+        options = new BitmapFactory.Options();
+        options.inJustDecodeBounds = true;
+
+        BitmapFactory.decodeByteArray(bytes, 0, bytes.length, options);
+        calculateInSampleSize(data.targetWidth, data.targetHeight, options);
+      }
+      return BitmapFactory.decodeByteArray(bytes, 0, bytes.length, options);
+    } else {
+      BitmapFactory.Options options = null;
+      if (data.hasSize()) {
+        options = new BitmapFactory.Options();
+        options.inJustDecodeBounds = true;
+
+        BitmapFactory.decodeStream(stream, null, options);
+        calculateInSampleSize(data.targetWidth, data.targetHeight, options);
+
+        markStream.reset(mark);
+      }
+      return BitmapFactory.decodeStream(stream, null, options);
+    }
+  }
+}

mobile/android/thirdparty/com/squareup/picasso/Picasso.java

@@ -0,0 +1,522 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.Color;
+import android.net.Uri;
+import android.os.Handler;
+import android.os.Looper;
+import android.os.Message;
+import android.os.Process;
+import android.widget.ImageView;
+import java.io.File;
+import java.lang.ref.ReferenceQueue;
+import java.util.List;
+import java.util.Map;
+import java.util.WeakHashMap;
+import java.util.concurrent.ExecutorService;
+
+import static android.os.Process.THREAD_PRIORITY_BACKGROUND;
+import static com.squareup.picasso.Action.RequestWeakReference;
+import static com.squareup.picasso.Dispatcher.HUNTER_BATCH_COMPLETE;
+import static com.squareup.picasso.Dispatcher.REQUEST_GCED;
+import static com.squareup.picasso.Utils.THREAD_PREFIX;
+
+/**
+ * Image downloading, transformation, and caching manager.
+ * <p/>
+ * Use {@link #with(android.content.Context)} for the global singleton instance or construct your
+ * own instance with {@link Builder}.
+ */
+public class Picasso {
+
+  /** Callbacks for Picasso events. */
+  public interface Listener {
+    /**
+     * Invoked when an image has failed to load. This is useful for reporting image failures to a
+     * remote analytics service, for example.
+     */
+    void onImageLoadFailed(Picasso picasso, Uri uri, Exception exception);
+  }
+
+  /**
+   * A transformer that is called immediately before every request is submitted. This can be used to
+   * modify any information about a request.
+   * <p>
+   * For example, if you use a CDN you can change the hostname for the image based on the current
+   * location of the user in order to get faster download speeds.
+   * <p>
+   * <b>NOTE:</b> This is a beta feature. The API is subject to change in a backwards incompatible
+   * way at any time.
+   */
+  public interface RequestTransformer {
+    /**
+     * Transform a request before it is submitted to be processed.
+     *
+     * @return The original request or a new request to replace it. Must not be null.
+     */
+    Request transformRequest(Request request);
+
+    /** A {@link RequestTransformer} which returns the original request. */
+    RequestTransformer IDENTITY = new RequestTransformer() {
+      @Override public Request transformRequest(Request request) {
+        return request;
+      }
+    };
+  }
+
+  static final Handler HANDLER = new Handler(Looper.getMainLooper()) {
+    @Override public void handleMessage(Message msg) {
+      switch (msg.what) {
+        case HUNTER_BATCH_COMPLETE: {
+          @SuppressWarnings("unchecked") List<BitmapHunter> batch = (List<BitmapHunter>) msg.obj;
+          for (BitmapHunter hunter : batch) {
+            hunter.picasso.complete(hunter);
+          }
+          break;
+        }
+        case REQUEST_GCED: {
+          Action action = (Action) msg.obj;
+          action.picasso.cancelExistingRequest(action.getTarget());
+          break;
+        }
+        default:
+          throw new AssertionError("Unknown handler message received: " + msg.what);
+      }
+    }
+  };
+
+  static Picasso singleton = null;
+
+  private final Listener listener;
+  private final RequestTransformer requestTransformer;
+  private final CleanupThread cleanupThread;
+
+  final Context context;
+  final Dispatcher dispatcher;
+  final Cache cache;
+  final Stats stats;
+  final Map<Object, Action> targetToAction;
+  final Map<ImageView, DeferredRequestCreator> targetToDeferredRequestCreator;
+  final ReferenceQueue<Object> referenceQueue;
+
+  boolean debugging;
+  boolean shutdown;
+
+  Picasso(Context context, Dispatcher dispatcher, Cache cache, Listener listener,
+      RequestTransformer requestTransformer, Stats stats, boolean debugging) {
+    this.context = context;
+    this.dispatcher = dispatcher;
+    this.cache = cache;
+    this.listener = listener;
+    this.requestTransformer = requestTransformer;
+    this.stats = stats;
+    this.targetToAction = new WeakHashMap<Object, Action>();
+    this.targetToDeferredRequestCreator = new WeakHashMap<ImageView, DeferredRequestCreator>();
+    this.debugging = debugging;
+    this.referenceQueue = new ReferenceQueue<Object>();
+    this.cleanupThread = new CleanupThread(referenceQueue, HANDLER);
+    this.cleanupThread.start();
+  }
+
+  /** Cancel any existing requests for the specified target {@link ImageView}. */
+  public void cancelRequest(ImageView view) {
+    cancelExistingRequest(view);
+  }
+
+  /** Cancel any existing requests for the specified {@link Target} instance. */
+  public void cancelRequest(Target target) {
+    cancelExistingRequest(target);
+  }
+
+  /**
+   * Start an image request using the specified URI.
+   * <p>
+   * Passing {@code null} as a {@code uri} will not trigger any request but will set a placeholder,
+   * if one is specified.
+   *
+   * @see #load(File)
+   * @see #load(String)
+   * @see #load(int)
+   */
+  public RequestCreator load(Uri uri) {
+    return new RequestCreator(this, uri, 0);
+  }
+
+  /**
+   * Start an image request using the specified path. This is a convenience method for calling
+   * {@link #load(Uri)}.
+   * <p>
+   * This path may be a remote URL, file resource (prefixed with {@code file:}), content resource
+   * (prefixed with {@code content:}), or android resource (prefixed with {@code
+   * android.resource:}.
+   * <p>
+   * Passing {@code null} as a {@code path} will not trigger any request but will set a
+   * placeholder, if one is specified.
+   *
+   * @see #load(Uri)
+   * @see #load(File)
+   * @see #load(int)
+   */
+  public RequestCreator load(String path) {
+    if (path == null) {
+      return new RequestCreator(this, null, 0);
+    }
+    if (path.trim().length() == 0) {
+      throw new IllegalArgumentException("Path must not be empty.");
+    }
+    return load(Uri.parse(path));
+  }
+
+  /**
+   * Start an image request using the specified image file. This is a convenience method for
+   * calling {@link #load(Uri)}.
+   * <p>
+   * Passing {@code null} as a {@code file} will not trigger any request but will set a
+   * placeholder, if one is specified.
+   *
+   * @see #load(Uri)
+   * @see #load(String)
+   * @see #load(int)
+   */
+  public RequestCreator load(File file) {
+    if (file == null) {
+      return new RequestCreator(this, null, 0);
+    }
+    return load(Uri.fromFile(file));
+  }
+
+  /**
+   * Start an image request using the specified drawable resource ID.
+   *
+   * @see #load(Uri)
+   * @see #load(String)
+   * @see #load(File)
+   */
+  public RequestCreator load(int resourceId) {
+    if (resourceId == 0) {
+      throw new IllegalArgumentException("Resource ID must not be zero.");
+    }
+    return new RequestCreator(this, null, resourceId);
+  }
+
+  /** {@code true} if debug display, logging, and statistics are enabled. */
+  @SuppressWarnings("UnusedDeclaration") public boolean isDebugging() {
+    return debugging;
+  }
+
+  /** Toggle whether debug display, logging, and statistics are enabled. */
+  @SuppressWarnings("UnusedDeclaration") public void setDebugging(boolean debugging) {
+    this.debugging = debugging;
+  }
+
+  /** Creates a {@link StatsSnapshot} of the current stats for this instance. */
+  @SuppressWarnings("UnusedDeclaration") public StatsSnapshot getSnapshot() {
+    return stats.createSnapshot();
+  }
+
+  /** Stops this instance from accepting further requests. */
+  public void shutdown() {
+    if (this == singleton) {
+      throw new UnsupportedOperationException("Default singleton instance cannot be shutdown.");
+    }
+    if (shutdown) {
+      return;
+    }
+    cache.clear();
+    cleanupThread.shutdown();
+    stats.shutdown();
+    dispatcher.shutdown();
+    for (DeferredRequestCreator deferredRequestCreator : targetToDeferredRequestCreator.values()) {
+      deferredRequestCreator.cancel();
+    }
+    targetToDeferredRequestCreator.clear();
+    shutdown = true;
+  }
+
+  Request transformRequest(Request request) {
+    Request transformed = requestTransformer.transformRequest(request);
+    if (transformed == null) {
+      throw new IllegalStateException("Request transformer "
+          + requestTransformer.getClass().getCanonicalName()
+          + " returned null for "
+          + request);
+    }
+    return transformed;
+  }
+
+  void defer(ImageView view, DeferredRequestCreator request) {
+    targetToDeferredRequestCreator.put(view, request);
+  }
+
+  void enqueueAndSubmit(Action action) {
+    Object target = action.getTarget();
+    if (target != null) {
+      cancelExistingRequest(target);
+      targetToAction.put(target, action);
+    }
+    submit(action);
+  }
+
+  void submit(Action action) {
+    dispatcher.dispatchSubmit(action);
+  }
+
+  Bitmap quickMemoryCacheCheck(String key) {
+    Bitmap cached = cache.get(key);
+    if (cached != null) {
+      stats.dispatchCacheHit();
+    } else {
+      stats.dispatchCacheMiss();
+    }
+    return cached;
+  }
+
+  void complete(BitmapHunter hunter) {
+    List<Action> joined = hunter.getActions();
+    if (joined.isEmpty()) {
+      return;
+    }
+
+    Uri uri = hunter.getData().uri;
+    Exception exception = hunter.getException();
+    Bitmap result = hunter.getResult();
+    LoadedFrom from = hunter.getLoadedFrom();
+
+    for (Action join : joined) {
+      if (join.isCancelled()) {
+        continue;
+      }
+      targetToAction.remove(join.getTarget());
+      if (result != null) {
+        if (from == null) {
+          throw new AssertionError("LoadedFrom cannot be null.");
+        }
+        join.complete(result, from);
+      } else {
+        join.error();
+      }
+    }
+
+    if (listener != null && exception != null) {
+      listener.onImageLoadFailed(this, uri, exception);
+    }
+  }
+
+  private void cancelExistingRequest(Object target) {
+    Action action = targetToAction.remove(target);
+    if (action != null) {
+      action.cancel();
+      dispatcher.dispatchCancel(action);
+    }
+    if (target instanceof ImageView) {
+      ImageView targetImageView = (ImageView) target;
+      DeferredRequestCreator deferredRequestCreator =
+          targetToDeferredRequestCreator.remove(targetImageView);
+      if (deferredRequestCreator != null) {
+        deferredRequestCreator.cancel();
+      }
+    }
+  }
+
+  private static class CleanupThread extends Thread {
+    private final ReferenceQueue<?> referenceQueue;
+    private final Handler handler;
+
+    CleanupThread(ReferenceQueue<?> referenceQueue, Handler handler) {
+      this.referenceQueue = referenceQueue;
+      this.handler = handler;
+      setDaemon(true);
+      setName(THREAD_PREFIX + "refQueue");
+    }
+
+    @Override public void run() {
+      Process.setThreadPriority(THREAD_PRIORITY_BACKGROUND);
+      while (true) {
+        try {
+          RequestWeakReference<?> remove = (RequestWeakReference<?>) referenceQueue.remove();
+          handler.sendMessage(handler.obtainMessage(REQUEST_GCED, remove.action));
+        } catch (InterruptedException e) {
+          break;
+        } catch (final Exception e) {
+          handler.post(new Runnable() {
+            @Override public void run() {
+              throw new RuntimeException(e);
+            }
+          });
+          break;
+        }
+      }
+    }
+
+    void shutdown() {
+      interrupt();
+    }
+  }
+
+  /**
+   * The global default {@link Picasso} instance.
+   * <p>
+   * This instance is automatically initialized with defaults that are suitable to most
+   * implementations.
+   * <ul>
+   * <li>LRU memory cache of 15% the available application RAM</li>
+   * <li>Disk cache of 2% storage space up to 50MB but no less than 5MB. (Note: this is only
+   * available on API 14+ <em>or</em> if you are using a standalone library that provides a disk
+   * cache on all API levels like OkHttp)</li>
+   * <li>Three download threads for disk and network access.</li>
+   * </ul>
+   * <p>
+   * If these settings do not meet the requirements of your application you can construct your own
+   * instance with full control over the configuration by using {@link Picasso.Builder}.
+   */
+  public static Picasso with(Context context) {
+    if (singleton == null) {
+      singleton = new Builder(context).build();
+    }
+    return singleton;
+  }
+
+  /** Fluent API for creating {@link Picasso} instances. */
+  @SuppressWarnings("UnusedDeclaration") // Public API.
+  public static class Builder {
+    private final Context context;
+    private Downloader downloader;
+    private ExecutorService service;
+    private Cache cache;
+    private Listener listener;
+    private RequestTransformer transformer;
+    private boolean debugging;
+
+    /** Start building a new {@link Picasso} instance. */
+    public Builder(Context context) {
+      if (context == null) {
+        throw new IllegalArgumentException("Context must not be null.");
+      }
+      this.context = context.getApplicationContext();
+    }
+
+    /** Specify the {@link Downloader} that will be used for downloading images. */
+    public Builder downloader(Downloader downloader) {
+      if (downloader == null) {
+        throw new IllegalArgumentException("Downloader must not be null.");
+      }
+      if (this.downloader != null) {
+        throw new IllegalStateException("Downloader already set.");
+      }
+      this.downloader = downloader;
+      return this;
+    }
+
+    /** Specify the executor service for loading images in the background. */
+    public Builder executor(ExecutorService executorService) {
+      if (executorService == null) {
+        throw new IllegalArgumentException("Executor service must not be null.");
+      }
+      if (this.service != null) {
+        throw new IllegalStateException("Executor service already set.");
+      }
+      this.service = executorService;
+      return this;
+    }
+
+    /** Specify the memory cache used for the most recent images. */
+    public Builder memoryCache(Cache memoryCache) {
+      if (memoryCache == null) {
+        throw new IllegalArgumentException("Memory cache must not be null.");
+      }
+      if (this.cache != null) {
+        throw new IllegalStateException("Memory cache already set.");
+      }
+      this.cache = memoryCache;
+      return this;
+    }
+
+    /** Specify a listener for interesting events. */
+    public Builder listener(Listener listener) {
+      if (listener == null) {
+        throw new IllegalArgumentException("Listener must not be null.");
+      }
+      if (this.listener != null) {
+        throw new IllegalStateException("Listener already set.");
+      }
+      this.listener = listener;
+      return this;
+    }
+
+    /**
+     * Specify a transformer for all incoming requests.
+     * <p>
+     * <b>NOTE:</b> This is a beta feature. The API is subject to change in a backwards incompatible
+     * way at any time.
+     */
+    public Builder requestTransformer(RequestTransformer transformer) {
+      if (transformer == null) {
+        throw new IllegalArgumentException("Transformer must not be null.");
+      }
+      if (this.transformer != null) {
+        throw new IllegalStateException("Transformer already set.");
+      }
+      this.transformer = transformer;
+      return this;
+    }
+
+    /** Whether debugging is enabled or not. */
+    public Builder debugging(boolean debugging) {
+      this.debugging = debugging;
+      return this;
+    }
+
+    /** Create the {@link Picasso} instance. */
+    public Picasso build() {
+      Context context = this.context;
+
+      if (downloader == null) {
+        downloader = Utils.createDefaultDownloader(context);
+      }
+      if (cache == null) {
+        cache = new LruCache(context);
+      }
+      if (service == null) {
+        service = new PicassoExecutorService();
+      }
+      if (transformer == null) {
+        transformer = RequestTransformer.IDENTITY;
+      }
+
+      Stats stats = new Stats(cache);
+
+      Dispatcher dispatcher = new Dispatcher(context, service, HANDLER, downloader, cache, stats);
+
+      return new Picasso(context, dispatcher, cache, listener, transformer, stats, debugging);
+    }
+  }
+
+  /** Describes where the image was loaded from. */
+  public enum LoadedFrom {
+    MEMORY(Color.GREEN),
+    DISK(Color.YELLOW),
+    NETWORK(Color.RED);
+
+    final int debugColor;
+
+    private LoadedFrom(int debugColor) {
+      this.debugColor = debugColor;
+    }
+  }
+}

mobile/android/thirdparty/com/squareup/picasso/PicassoDrawable.java

@@ -0,0 +1,186 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import android.content.Context;
+import android.content.res.Resources;
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.ColorFilter;
+import android.graphics.Paint;
+import android.graphics.Path;
+import android.graphics.Point;
+import android.graphics.Rect;
+import android.graphics.drawable.AnimationDrawable;
+import android.graphics.drawable.BitmapDrawable;
+import android.graphics.drawable.Drawable;
+import android.os.SystemClock;
+import android.widget.ImageView;
+
+import static android.graphics.Color.WHITE;
+import static com.squareup.picasso.Picasso.LoadedFrom.MEMORY;
+
+final class PicassoDrawable extends Drawable {
+  // Only accessed from main thread.
+  private static final Paint DEBUG_PAINT = new Paint();
+
+  private static final float FADE_DURATION = 200f; //ms
+
+  /**
+   * Create or update the drawable on the target {@link ImageView} to display the supplied bitmap
+   * image.
+   */
+  static void setBitmap(ImageView target, Context context, Bitmap bitmap,
+      Picasso.LoadedFrom loadedFrom, boolean noFade, boolean debugging) {
+    Drawable placeholder = target.getDrawable();
+    if (placeholder instanceof AnimationDrawable) {
+      ((AnimationDrawable) placeholder).stop();
+    }
+    PicassoDrawable drawable =
+        new PicassoDrawable(context, placeholder, bitmap, loadedFrom, noFade, debugging);
+    target.setImageDrawable(drawable);
+  }
+
+  /**
+   * Create or update the drawable on the target {@link ImageView} to display the supplied
+   * placeholder image.
+   */
+  static void setPlaceholder(ImageView target, int placeholderResId, Drawable placeholderDrawable) {
+    if (placeholderResId != 0) {
+      target.setImageResource(placeholderResId);
+    } else {
+      target.setImageDrawable(placeholderDrawable);
+    }
+    if (target.getDrawable() instanceof AnimationDrawable) {
+      ((AnimationDrawable) target.getDrawable()).start();
+    }
+  }
+
+  private final boolean debugging;
+  private final float density;
+  private final Picasso.LoadedFrom loadedFrom;
+  final BitmapDrawable image;
+
+  Drawable placeholder;
+
+  long startTimeMillis;
+  boolean animating;
+  int alpha = 0xFF;
+
+  PicassoDrawable(Context context, Drawable placeholder, Bitmap bitmap,
+      Picasso.LoadedFrom loadedFrom, boolean noFade, boolean debugging) {
+    Resources res = context.getResources();
+
+    this.debugging = debugging;
+    this.density = res.getDisplayMetrics().density;
+
+    this.loadedFrom = loadedFrom;
+
+    this.image = new BitmapDrawable(res, bitmap);
+
+    boolean fade = loadedFrom != MEMORY && !noFade;
+    if (fade) {
+      this.placeholder = placeholder;
+      animating = true;
+      startTimeMillis = SystemClock.uptimeMillis();
+    }
+  }
+
+  @Override public void draw(Canvas canvas) {
+    if (!animating) {
+      image.draw(canvas);
+    } else {
+      float normalized = (SystemClock.uptimeMillis() - startTimeMillis) / FADE_DURATION;
+      if (normalized >= 1f) {
+        animating = false;
+        placeholder = null;
+        image.draw(canvas);
+      } else {
+        if (placeholder != null) {
+          placeholder.draw(canvas);
+        }
+
+        int partialAlpha = (int) (alpha * normalized);
+        image.setAlpha(partialAlpha);
+        image.draw(canvas);
+        image.setAlpha(alpha);
+        invalidateSelf();
+      }
+    }
+
+    if (debugging) {
+      drawDebugIndicator(canvas);
+    }
+  }
+
+  @Override public int getIntrinsicWidth() {
+    return image.getIntrinsicWidth();
+  }
+
+  @Override public int getIntrinsicHeight() {
+    return image.getIntrinsicHeight();
+  }
+
+  @Override public void setAlpha(int alpha) {
+    this.alpha = alpha;
+    if (placeholder != null) {
+      placeholder.setAlpha(alpha);
+    }
+    image.setAlpha(alpha);
+  }
+
+  @Override public void setColorFilter(ColorFilter cf) {
+    if (placeholder != null) {
+      placeholder.setColorFilter(cf);
+    }
+    image.setColorFilter(cf);
+  }
+
+  @Override public int getOpacity() {
+    return image.getOpacity();
+  }
+
+  @Override protected void onBoundsChange(Rect bounds) {
+    super.onBoundsChange(bounds);
+
+    image.setBounds(bounds);
+    if (placeholder != null) {
+      placeholder.setBounds(bounds);
+    }
+  }
+
+  private void drawDebugIndicator(Canvas canvas) {
+    DEBUG_PAINT.setColor(WHITE);
+    Path path = getTrianglePath(new Point(0, 0), (int) (16 * density));
+    canvas.drawPath(path, DEBUG_PAINT);
+
+    DEBUG_PAINT.setColor(loadedFrom.debugColor);
+    path = getTrianglePath(new Point(0, 0), (int) (15 * density));
+    canvas.drawPath(path, DEBUG_PAINT);
+  }
+
+  private static Path getTrianglePath(Point p1, int width) {
+    Point p2 = new Point(p1.x + width, p1.y);
+    Point p3 = new Point(p1.x, p1.y + width);
+
+    Path path = new Path();
+    path.moveTo(p1.x, p1.y);
+    path.lineTo(p2.x, p2.y);
+    path.lineTo(p3.x, p3.y);
+
+    return path;
+  }
+}

mobile/android/thirdparty/com/squareup/picasso/PicassoExecutorService.java

@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import android.net.ConnectivityManager;
+import android.net.NetworkInfo;
+import android.telephony.TelephonyManager;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.concurrent.ThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * The default {@link java.util.concurrent.ExecutorService} used for new {@link Picasso} instances.
+ * <p/>
+ * Exists as a custom type so that we can differentiate the use of defaults versus a user-supplied
+ * instance.
+ */
+class PicassoExecutorService extends ThreadPoolExecutor {
+  private static final int DEFAULT_THREAD_COUNT = 3;
+
+  PicassoExecutorService() {
+    super(DEFAULT_THREAD_COUNT, DEFAULT_THREAD_COUNT, 0, TimeUnit.MILLISECONDS,
+        new LinkedBlockingQueue<Runnable>(), new Utils.PicassoThreadFactory());
+  }
+
+  void adjustThreadCount(NetworkInfo info) {
+    if (info == null || !info.isConnectedOrConnecting()) {
+      setThreadCount(DEFAULT_THREAD_COUNT);
+      return;
+    }
+    switch (info.getType()) {
+      case ConnectivityManager.TYPE_WIFI:
+      case ConnectivityManager.TYPE_WIMAX:
+      case ConnectivityManager.TYPE_ETHERNET:
+        setThreadCount(4);
+        break;
+      case ConnectivityManager.TYPE_MOBILE:
+        switch (info.getSubtype()) {
+          case TelephonyManager.NETWORK_TYPE_LTE:  // 4G
+          case TelephonyManager.NETWORK_TYPE_HSPAP:
+          case TelephonyManager.NETWORK_TYPE_EHRPD:
+            setThreadCount(3);
+            break;
+          case TelephonyManager.NETWORK_TYPE_UMTS: // 3G
+          case TelephonyManager.NETWORK_TYPE_CDMA:
+          case TelephonyManager.NETWORK_TYPE_EVDO_0:
+          case TelephonyManager.NETWORK_TYPE_EVDO_A:
+          case TelephonyManager.NETWORK_TYPE_EVDO_B:
+            setThreadCount(2);
+            break;
+          case TelephonyManager.NETWORK_TYPE_GPRS: // 2G
+          case TelephonyManager.NETWORK_TYPE_EDGE:
+            setThreadCount(1);
+            break;
+          default:
+            setThreadCount(DEFAULT_THREAD_COUNT);
+        }
+        break;
+      default:
+        setThreadCount(DEFAULT_THREAD_COUNT);
+    }
+  }
+
+  private void setThreadCount(int threadCount) {
+    setCorePoolSize(threadCount);
+    setMaximumPoolSize(threadCount);
+  }
+}

mobile/android/thirdparty/com/squareup/picasso/Request.java

@@ -0,0 +1,307 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import android.net.Uri;
+import java.util.ArrayList;
+import java.util.List;
+
+import static java.util.Collections.unmodifiableList;
+
+/** Immutable data about an image and the transformations that will be applied to it. */
+public final class Request {
+  /**
+   * The image URI.
+   * <p>
+   * This is mutually exclusive with {@link #resourceId}.
+   */
+  public final Uri uri;
+  /**
+   * The image resource ID.
+   * <p>
+   * This is mutually exclusive with {@link #uri}.
+   */
+  public final int resourceId;
+  /** List of custom transformations to be applied after the built-in transformations. */
+  public final List<Transformation> transformations;
+  /** Target image width for resizing. */
+  public final int targetWidth;
+  /** Target image height for resizing. */
+  public final int targetHeight;
+  /**
+   * True if the final image should use the 'centerCrop' scale technique.
+   * <p>
+   * This is mutually exclusive with {@link #centerInside}.
+   */
+  public final boolean centerCrop;
+  /**
+   * True if the final image should use the 'centerInside' scale technique.
+   * <p>
+   * This is mutually exclusive with {@link #centerCrop}.
+   */
+  public final boolean centerInside;
+  /** Amount to rotate the image in degrees. */
+  public final float rotationDegrees;
+  /** Rotation pivot on the X axis. */
+  public final float rotationPivotX;
+  /** Rotation pivot on the Y axis. */
+  public final float rotationPivotY;
+  /** Whether or not {@link #rotationPivotX} and {@link #rotationPivotY} are set. */
+  public final boolean hasRotationPivot;
+
+  private Request(Uri uri, int resourceId, List<Transformation> transformations, int targetWidth,
+      int targetHeight, boolean centerCrop, boolean centerInside, float rotationDegrees,
+      float rotationPivotX, float rotationPivotY, boolean hasRotationPivot) {
+    this.uri = uri;
+    this.resourceId = resourceId;
+    if (transformations == null) {
+      this.transformations = null;
+    } else {
+      this.transformations = unmodifiableList(transformations);
+    }
+    this.targetWidth = targetWidth;
+    this.targetHeight = targetHeight;
+    this.centerCrop = centerCrop;
+    this.centerInside = centerInside;
+    this.rotationDegrees = rotationDegrees;
+    this.rotationPivotX = rotationPivotX;
+    this.rotationPivotY = rotationPivotY;
+    this.hasRotationPivot = hasRotationPivot;
+  }
+
+  String getName() {
+    if (uri != null) {
+      return uri.getPath();
+    }
+    return Integer.toHexString(resourceId);
+  }
+
+  public boolean hasSize() {
+    return targetWidth != 0;
+  }
+
+  boolean needsTransformation() {
+    return needsMatrixTransform() || hasCustomTransformations();
+  }
+
+  boolean needsMatrixTransform() {
+    return targetWidth != 0 || rotationDegrees != 0;
+  }
+
+  boolean hasCustomTransformations() {
+    return transformations != null;
+  }
+
+  public Builder buildUpon() {
+    return new Builder(this);
+  }
+
+  /** Builder for creating {@link Request} instances. */
+  public static final class Builder {
+    private Uri uri;
+    private int resourceId;
+    private int targetWidth;
+    private int targetHeight;
+    private boolean centerCrop;
+    private boolean centerInside;
+    private float rotationDegrees;
+    private float rotationPivotX;
+    private float rotationPivotY;
+    private boolean hasRotationPivot;
+    private List<Transformation> transformations;
+
+    /** Start building a request using the specified {@link Uri}. */
+    public Builder(Uri uri) {
+      setUri(uri);
+    }
+
+    /** Start building a request using the specified resource ID. */
+    public Builder(int resourceId) {
+      setResourceId(resourceId);
+    }
+
+    Builder(Uri uri, int resourceId) {
+      this.uri = uri;
+      this.resourceId = resourceId;
+    }
+
+    private Builder(Request request) {
+      uri = request.uri;
+      resourceId = request.resourceId;
+      targetWidth = request.targetWidth;
+      targetHeight = request.targetHeight;
+      centerCrop = request.centerCrop;
+      centerInside = request.centerInside;
+      rotationDegrees = request.rotationDegrees;
+      rotationPivotX = request.rotationPivotX;
+      rotationPivotY = request.rotationPivotY;
+      hasRotationPivot = request.hasRotationPivot;
+      if (request.transformations != null) {
+        transformations = new ArrayList<Transformation>(request.transformations);
+      }
+    }
+
+    boolean hasImage() {
+      return uri != null || resourceId != 0;
+    }
+
+    boolean hasSize() {
+      return targetWidth != 0;
+    }
+
+    /**
+     * Set the target image Uri.
+     * <p>
+     * This will clear an image resource ID if one is set.
+     */
+    public Builder setUri(Uri uri) {
+      if (uri == null) {
+        throw new IllegalArgumentException("Image URI may not be null.");
+      }
+      this.uri = uri;
+      this.resourceId = 0;
+      return this;
+    }
+
+    /**
+     * Set the target image resource ID.
+     * <p>
+     * This will clear an image Uri if one is set.
+     */
+    public Builder setResourceId(int resourceId) {
+      if (resourceId == 0) {
+        throw new IllegalArgumentException("Image resource ID may not be 0.");
+      }
+      this.resourceId = resourceId;
+      this.uri = null;
+      return this;
+    }
+
+    /** Resize the image to the specified size in pixels. */
+    public Builder resize(int targetWidth, int targetHeight) {
+      if (targetWidth <= 0) {
+        throw new IllegalArgumentException("Width must be positive number.");
+      }
+      if (targetHeight <= 0) {
+        throw new IllegalArgumentException("Height must be positive number.");
+      }
+      this.targetWidth = targetWidth;
+      this.targetHeight = targetHeight;
+      return this;
+    }
+
+    /** Clear the resize transformation, if any. This will also clear center crop/inside if set. */
+    public Builder clearResize() {
+      targetWidth = 0;
+      targetHeight = 0;
+      centerCrop = false;
+      centerInside = false;
+      return this;
+    }
+
+    /**
+     * Crops an image inside of the bounds specified by {@link #resize(int, int)} rather than
+     * distorting the aspect ratio. This cropping technique scales the image so that it fills the
+     * requested bounds and then crops the extra.
+     */
+    public Builder centerCrop() {
+      if (centerInside) {
+        throw new IllegalStateException("Center crop can not be used after calling centerInside");
+      }
+      centerCrop = true;
+      return this;
+    }
+
+    /** Clear the center crop transformation flag, if set. */
+    public Builder clearCenterCrop() {
+      centerCrop = false;
+      return this;
+    }
+
+    /**
+     * Centers an image inside of the bounds specified by {@link #resize(int, int)}. This scales
+     * the image so that both dimensions are equal to or less than the requested bounds.
+     */
+    public Builder centerInside() {
+      if (centerCrop) {
+        throw new IllegalStateException("Center inside can not be used after calling centerCrop");
+      }
+      centerInside = true;
+      return this;
+    }
+
+    /** Clear the center inside transformation flag, if set. */
+    public Builder clearCenterInside() {
+      centerInside = false;
+      return this;
+    }
+
+    /** Rotate the image by the specified degrees. */
+    public Builder rotate(float degrees) {
+      rotationDegrees = degrees;
+      return this;
+    }
+
+    /** Rotate the image by the specified degrees around a pivot point. */
+    public Builder rotate(float degrees, float pivotX, float pivotY) {
+      rotationDegrees = degrees;
+      rotationPivotX = pivotX;
+      rotationPivotY = pivotY;
+      hasRotationPivot = true;
+      return this;
+    }
+
+    /** Clear the rotation transformation, if any. */
+    public Builder clearRotation() {
+      rotationDegrees = 0;
+      rotationPivotX = 0;
+      rotationPivotY = 0;
+      hasRotationPivot = false;
+      return this;
+    }
+
+    /**
+     * Add a custom transformation to be applied to the image.
+     * <p/>
+     * Custom transformations will always be run after the built-in transformations.
+     */
+    public Builder transform(Transformation transformation) {
+      if (transformation == null) {
+        throw new IllegalArgumentException("Transformation must not be null.");
+      }
+      if (transformations == null) {
+        transformations = new ArrayList<Transformation>(2);
+      }
+      transformations.add(transformation);
+      return this;
+    }
+
+    /** Create the immutable {@link Request} object. */
+    public Request build() {
+      if (centerInside && centerCrop) {
+        throw new IllegalStateException("Center crop and center inside can not be used together.");
+      }
+      if (centerCrop && targetWidth == 0) {
+        throw new IllegalStateException("Center crop requires calling resize.");
+      }
+      if (centerInside && targetWidth == 0) {
+        throw new IllegalStateException("Center inside requires calling resize.");
+      }
+      return new Request(uri, resourceId, transformations, targetWidth, targetHeight, centerCrop,
+          centerInside, rotationDegrees, rotationPivotX, rotationPivotY, hasRotationPivot);
+    }
+  }
+}

mobile/android/thirdparty/com/squareup/picasso/RequestCreator.java

@@ -0,0 +1,374 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import android.content.res.Resources;
+import android.graphics.Bitmap;
+import android.graphics.drawable.Drawable;
+import android.net.Uri;
+import android.widget.ImageView;
+import java.io.IOException;
+
+import static com.squareup.picasso.BitmapHunter.forRequest;
+import static com.squareup.picasso.Picasso.LoadedFrom.MEMORY;
+import static com.squareup.picasso.Utils.checkNotMain;
+import static com.squareup.picasso.Utils.createKey;
+
+/** Fluent API for building an image download request. */
+@SuppressWarnings("UnusedDeclaration") // Public API.
+public class RequestCreator {
+  private final Picasso picasso;
+  private final Request.Builder data;
+
+  private boolean skipMemoryCache;
+  private boolean noFade;
+  private boolean deferred;
+  private int placeholderResId;
+  private Drawable placeholderDrawable;
+  private int errorResId;
+  private Drawable errorDrawable;
+
+  RequestCreator(Picasso picasso, Uri uri, int resourceId) {
+    if (picasso.shutdown) {
+      throw new IllegalStateException(
+          "Picasso instance already shut down. Cannot submit new requests.");
+    }
+    this.picasso = picasso;
+    this.data = new Request.Builder(uri, resourceId);
+  }
+
+  /**
+   * A placeholder drawable to be used while the image is being loaded. If the requested image is
+   * not immediately available in the memory cache then this resource will be set on the target
+   * {@link ImageView}.
+   */
+  public RequestCreator placeholder(int placeholderResId) {
+    if (placeholderResId == 0) {
+      throw new IllegalArgumentException("Placeholder image resource invalid.");
+    }
+    if (placeholderDrawable != null) {
+      throw new IllegalStateException("Placeholder image already set.");
+    }
+    this.placeholderResId = placeholderResId;
+    return this;
+  }
+
+  /**
+   * A placeholder drawable to be used while the image is being loaded. If the requested image is
+   * not immediately available in the memory cache then this resource will be set on the target
+   * {@link ImageView}.
+   * <p>
+   * If you are not using a placeholder image but want to clear an existing image (such as when
+   * used in an {@link android.widget.Adapter adapter}), pass in {@code null}.
+   */
+  public RequestCreator placeholder(Drawable placeholderDrawable) {
+    if (placeholderResId != 0) {
+      throw new IllegalStateException("Placeholder image already set.");
+    }
+    this.placeholderDrawable = placeholderDrawable;
+    return this;
+  }
+
+  /** An error drawable to be used if the request image could not be loaded. */
+  public RequestCreator error(int errorResId) {
+    if (errorResId == 0) {
+      throw new IllegalArgumentException("Error image resource invalid.");
+    }
+    if (errorDrawable != null) {
+      throw new IllegalStateException("Error image already set.");
+    }
+    this.errorResId = errorResId;
+    return this;
+  }
+
+  /** An error drawable to be used if the request image could not be loaded. */
+  public RequestCreator error(Drawable errorDrawable) {
+    if (errorDrawable == null) {
+      throw new IllegalArgumentException("Error image may not be null.");
+    }
+    if (errorResId != 0) {
+      throw new IllegalStateException("Error image already set.");
+    }
+    this.errorDrawable = errorDrawable;
+    return this;
+  }
+
+  /**
+   * Attempt to resize the image to fit exactly into the target {@link ImageView}'s bounds. This
+   * will result in delayed execution of the request until the {@link ImageView} has been measured.
+   * <p/>
+   * <em>Note:</em> This method works only when your target is an {@link ImageView}.
+   */
+  public RequestCreator fit() {
+    deferred = true;
+    return this;
+  }
+
+  /** Internal use only. Used by {@link DeferredRequestCreator}. */
+  RequestCreator unfit() {
+    deferred = false;
+    return this;
+  }
+
+  /** Resize the image to the specified dimension size. */
+  public RequestCreator resizeDimen(int targetWidthResId, int targetHeightResId) {
+    Resources resources = picasso.context.getResources();
+    int targetWidth = resources.getDimensionPixelSize(targetWidthResId);
+    int targetHeight = resources.getDimensionPixelSize(targetHeightResId);
+    return resize(targetWidth, targetHeight);
+  }
+
+  /** Resize the image to the specified size in pixels. */
+  public RequestCreator resize(int targetWidth, int targetHeight) {
+    data.resize(targetWidth, targetHeight);
+    return this;
+  }
+
+  /**
+   * Crops an image inside of the bounds specified by {@link #resize(int, int)} rather than
+   * distorting the aspect ratio. This cropping technique scales the image so that it fills the
+   * requested bounds and then crops the extra.
+   */
+  public RequestCreator centerCrop() {
+    data.centerCrop();
+    return this;
+  }
+
+  /**
+   * Centers an image inside of the bounds specified by {@link #resize(int, int)}. This scales
+   * the image so that both dimensions are equal to or less than the requested bounds.
+   */
+  public RequestCreator centerInside() {
+    data.centerInside();
+    return this;
+  }
+
+  /** Rotate the image by the specified degrees. */
+  public RequestCreator rotate(float degrees) {
+    data.rotate(degrees);
+    return this;
+  }
+
+  /** Rotate the image by the specified degrees around a pivot point. */
+  public RequestCreator rotate(float degrees, float pivotX, float pivotY) {
+    data.rotate(degrees, pivotX, pivotY);
+    return this;
+  }
+
+  /**
+   * Add a custom transformation to be applied to the image.
+   * <p/>
+   * Custom transformations will always be run after the built-in transformations.
+   */
+  // TODO show example of calling resize after a transform in the javadoc
+  public RequestCreator transform(Transformation transformation) {
+    data.transform(transformation);
+    return this;
+  }
+
+  /**
+   * Indicate that this action should not use the memory cache for attempting to load or save the
+   * image. This can be useful when you know an image will only ever be used once (e.g., loading
+   * an image from the filesystem and uploading to a remote server).
+   */
+  public RequestCreator skipMemoryCache() {
+    skipMemoryCache = true;
+    return this;
+  }
+
+  /** Disable brief fade in of images loaded from the disk cache or network. */
+  public RequestCreator noFade() {
+    noFade = true;
+    return this;
+  }
+
+  /** Synchronously fulfill this request. Must not be called from the main thread. */
+  public Bitmap get() throws IOException {
+    checkNotMain();
+    if (deferred) {
+      throw new IllegalStateException("Fit cannot be used with get.");
+    }
+    if (!data.hasImage()) {
+      return null;
+    }
+
+    Request finalData = picasso.transformRequest(data.build());
+    String key = createKey(finalData);
+
+    Action action = new GetAction(picasso, finalData, skipMemoryCache, key);
+    return forRequest(picasso.context, picasso, picasso.dispatcher, picasso.cache, picasso.stats,
+        action, picasso.dispatcher.downloader).hunt();
+  }
+
+  /**
+   * Asynchronously fulfills the request without a {@link ImageView} or {@link Target}. This is
+   * useful when you want to warm up the cache with an image.
+   */
+  public void fetch() {
+    if (deferred) {
+      throw new IllegalStateException("Fit cannot be used with fetch.");
+    }
+    if (data.hasImage()) {
+      Request finalData = picasso.transformRequest(data.build());
+      String key = createKey(finalData);
+
+      Action action = new FetchAction(picasso, finalData, skipMemoryCache, key);
+      picasso.enqueueAndSubmit(action);
+    }
+  }
+
+  /**
+   * Asynchronously fulfills the request into the specified {@link Target}. In most cases, you
+   * should use this when you are dealing with a custom {@link android.view.View View} or view
+   * holder which should implement the {@link Target} interface.
+   * <p>
+   * Implementing on a {@link android.view.View View}:
+   * <blockquote><pre>
+   * public class ProfileView extends FrameLayout implements Target {
+   *   {@literal @}Override public void onBitmapLoaded(Bitmap bitmap, LoadedFrom from) {
+   *     setBackgroundDrawable(new BitmapDrawable(bitmap));
+   *   }
+   *
+   *   {@literal @}Override public void onBitmapFailed() {
+   *     setBackgroundResource(R.drawable.profile_error);
+   *   }
+   * }
+   * </pre></blockquote>
+   * Implementing on a view holder object for use inside of an adapter:
+   * <blockquote><pre>
+   * public class ViewHolder implements Target {
+   *   public FrameLayout frame;
+   *   public TextView name;
+   *
+   *   {@literal @}Override public void onBitmapLoaded(Bitmap bitmap, LoadedFrom from) {
+   *     frame.setBackgroundDrawable(new BitmapDrawable(bitmap));
+   *   }
+   *
+   *   {@literal @}Override public void onBitmapFailed() {
+   *     frame.setBackgroundResource(R.drawable.profile_error);
+   *   }
+   * }
+   * </pre></blockquote>
+   * <p>
+   * <em>Note:</em> This method keeps a weak reference to the {@link Target} instance and will be
+   * garbage collected if you do not keep a strong reference to it. To receive callbacks when an
+   * image is loaded use {@link #into(android.widget.ImageView, Callback)}.
+   */
+  public void into(Target target) {
+    if (target == null) {
+      throw new IllegalArgumentException("Target must not be null.");
+    }
+    if (deferred) {
+      throw new IllegalStateException("Fit cannot be used with a Target.");
+    }
+
+    Drawable drawable =
+        placeholderResId != 0 ? picasso.context.getResources().getDrawable(placeholderResId)
+            : placeholderDrawable;
+
+    if (!data.hasImage()) {
+      picasso.cancelRequest(target);
+      target.onPrepareLoad(drawable);
+      return;
+    }
+
+    Request finalData = picasso.transformRequest(data.build());
+    String requestKey = createKey(finalData);
+
+    if (!skipMemoryCache) {
+      Bitmap bitmap = picasso.quickMemoryCacheCheck(requestKey);
+      if (bitmap != null) {
+        picasso.cancelRequest(target);
+        target.onBitmapLoaded(bitmap, MEMORY);
+        return;
+      }
+    }
+
+    target.onPrepareLoad(drawable);
+
+    Action action = new TargetAction(picasso, target, finalData, skipMemoryCache, requestKey);
+    picasso.enqueueAndSubmit(action);
+  }
+
+  /**
+   * Asynchronously fulfills the request into the specified {@link ImageView}.
+   * <p/>
+   * <em>Note:</em> This method keeps a weak reference to the {@link ImageView} instance and will
+   * automatically support object recycling.
+   */
+  public void into(ImageView target) {
+    into(target, null);
+  }
+
+  /**
+   * Asynchronously fulfills the request into the specified {@link ImageView} and invokes the
+   * target {@link Callback} if it's not {@code null}.
+   * <p/>
+   * <em>Note:</em> The {@link Callback} param is a strong reference and will prevent your
+   * {@link android.app.Activity} or {@link android.app.Fragment} from being garbage collected. If
+   * you use this method, it is <b>strongly</b> recommended you invoke an adjacent
+   * {@link Picasso#cancelRequest(android.widget.ImageView)} call to prevent temporary leaking.
+   */
+  public void into(ImageView target, Callback callback) {
+    if (target == null) {
+      throw new IllegalArgumentException("Target must not be null.");
+    }
+
+    if (!data.hasImage()) {
+      picasso.cancelRequest(target);
+      PicassoDrawable.setPlaceholder(target, placeholderResId, placeholderDrawable);
+      return;
+    }
+
+    if (deferred) {
+      if (data.hasSize()) {
+        throw new IllegalStateException("Fit cannot be used with resize.");
+      }
+      int measuredWidth = target.getMeasuredWidth();
+      int measuredHeight = target.getMeasuredHeight();
+      if (measuredWidth == 0 || measuredHeight == 0) {
+        PicassoDrawable.setPlaceholder(target, placeholderResId, placeholderDrawable);
+        picasso.defer(target, new DeferredRequestCreator(this, target, callback));
+        return;
+      }
+      data.resize(measuredWidth, measuredHeight);
+    }
+
+    Request finalData = picasso.transformRequest(data.build());
+    String requestKey = createKey(finalData);
+
+    if (!skipMemoryCache) {
+      Bitmap bitmap = picasso.quickMemoryCacheCheck(requestKey);
+      if (bitmap != null) {
+        picasso.cancelRequest(target);
+        PicassoDrawable.setBitmap(target, picasso.context, bitmap, MEMORY, noFade,
+            picasso.debugging);
+        if (callback != null) {
+          callback.onSuccess();
+        }
+        return;
+      }
+    }
+
+    PicassoDrawable.setPlaceholder(target, placeholderResId, placeholderDrawable);
+
+    Action action =
+        new ImageViewAction(picasso, target, finalData, skipMemoryCache, noFade, errorResId,
+            errorDrawable, requestKey, callback);
+
+    picasso.enqueueAndSubmit(action);
+  }
+}

mobile/android/thirdparty/com/squareup/picasso/ResourceBitmapHunter.java

@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import android.content.Context;
+import android.content.res.Resources;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import java.io.IOException;
+
+import static com.squareup.picasso.Picasso.LoadedFrom.DISK;
+
+class ResourceBitmapHunter extends BitmapHunter {
+  private final Context context;
+
+  ResourceBitmapHunter(Context context, Picasso picasso, Dispatcher dispatcher, Cache cache,
+      Stats stats, Action action) {
+    super(picasso, dispatcher, cache, stats, action);
+    this.context = context;
+  }
+
+  @Override Bitmap decode(Request data) throws IOException {
+    Resources res = Utils.getResources(context, data);
+    int id = Utils.getResourceId(res, data);
+    return decodeResource(res, id, data);
+  }
+
+  @Override Picasso.LoadedFrom getLoadedFrom() {
+    return DISK;
+  }
+
+  private Bitmap decodeResource(Resources resources, int id, Request data) {
+    BitmapFactory.Options bitmapOptions = null;
+    if (data.hasSize()) {
+      bitmapOptions = new BitmapFactory.Options();
+      bitmapOptions.inJustDecodeBounds = true;
+      BitmapFactory.decodeResource(resources, id, bitmapOptions);
+      calculateInSampleSize(data.targetWidth, data.targetHeight, bitmapOptions);
+    }
+    return BitmapFactory.decodeResource(resources, id, bitmapOptions);
+  }
+}

mobile/android/thirdparty/com/squareup/picasso/Stats.java

@@ -0,0 +1,143 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import android.graphics.Bitmap;
+import android.os.Handler;
+import android.os.HandlerThread;
+import android.os.Looper;
+import android.os.Message;
+
+import static android.os.Process.THREAD_PRIORITY_BACKGROUND;
+
+class Stats {
+  private static final int CACHE_HIT = 0;
+  private static final int CACHE_MISS = 1;
+  private static final int BITMAP_DECODE_FINISHED = 2;
+  private static final int BITMAP_TRANSFORMED_FINISHED = 3;
+
+  private static final String STATS_THREAD_NAME = Utils.THREAD_PREFIX + "Stats";
+
+  final HandlerThread statsThread;
+  final Cache cache;
+  final Handler handler;
+
+  long cacheHits;
+  long cacheMisses;
+  long totalOriginalBitmapSize;
+  long totalTransformedBitmapSize;
+  long averageOriginalBitmapSize;
+  long averageTransformedBitmapSize;
+  int originalBitmapCount;
+  int transformedBitmapCount;
+
+  Stats(Cache cache) {
+    this.cache = cache;
+    this.statsThread = new HandlerThread(STATS_THREAD_NAME, THREAD_PRIORITY_BACKGROUND);
+    this.statsThread.start();
+    this.handler = new StatsHandler(statsThread.getLooper(), this);
+  }
+
+  void dispatchBitmapDecoded(Bitmap bitmap) {
+    processBitmap(bitmap, BITMAP_DECODE_FINISHED);
+  }
+
+  void dispatchBitmapTransformed(Bitmap bitmap) {
+    processBitmap(bitmap, BITMAP_TRANSFORMED_FINISHED);
+  }
+
+  void dispatchCacheHit() {
+    handler.sendEmptyMessage(CACHE_HIT);
+  }
+
+  void dispatchCacheMiss() {
+    handler.sendEmptyMessage(CACHE_MISS);
+  }
+
+  void shutdown() {
+    statsThread.quit();
+  }
+
+  void performCacheHit() {
+    cacheHits++;
+  }
+
+  void performCacheMiss() {
+    cacheMisses++;
+  }
+
+  void performBitmapDecoded(long size) {
+    originalBitmapCount++;
+    totalOriginalBitmapSize += size;
+    averageOriginalBitmapSize = getAverage(originalBitmapCount, totalOriginalBitmapSize);
+  }
+
+  void performBitmapTransformed(long size) {
+    transformedBitmapCount++;
+    totalTransformedBitmapSize += size;
+    averageTransformedBitmapSize = getAverage(originalBitmapCount, totalTransformedBitmapSize);
+  }
+
+  synchronized StatsSnapshot createSnapshot() {
+    return new StatsSnapshot(cache.maxSize(), cache.size(), cacheHits, cacheMisses,
+        totalOriginalBitmapSize, totalTransformedBitmapSize, averageOriginalBitmapSize,
+        averageTransformedBitmapSize, originalBitmapCount, transformedBitmapCount,
+        System.currentTimeMillis());
+  }
+
+  private void processBitmap(Bitmap bitmap, int what) {
+    // Never send bitmaps to the handler as they could be recycled before we process them.
+    int bitmapSize = Utils.getBitmapBytes(bitmap);
+    handler.sendMessage(handler.obtainMessage(what, bitmapSize, 0));
+  }
+
+  private static long getAverage(int count, long totalSize) {
+    return totalSize / count;
+  }
+
+  private static class StatsHandler extends Handler {
+
+    private final Stats stats;
+
+    public StatsHandler(Looper looper, Stats stats) {
+      super(looper);
+      this.stats = stats;
+    }
+
+    @Override public void handleMessage(final Message msg) {
+      switch (msg.what) {
+        case CACHE_HIT:
+          stats.performCacheHit();
+          break;
+        case CACHE_MISS:
+          stats.performCacheMiss();
+          break;
+        case BITMAP_DECODE_FINISHED:
+          stats.performBitmapDecoded(msg.arg1);
+          break;
+        case BITMAP_TRANSFORMED_FINISHED:
+          stats.performBitmapTransformed(msg.arg1);
+          break;
+        default:
+          Picasso.HANDLER.post(new Runnable() {
+            @Override public void run() {
+              throw new AssertionError("Unhandled stats message." + msg.what);
+            }
+          });
+      }
+    }
+  }
+}

mobile/android/thirdparty/com/squareup/picasso/StatsSnapshot.java

@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import android.util.Log;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+
+/** Represents all stats for a {@link Picasso} instance at a single point in time. */
+public class StatsSnapshot {
+  private static final String TAG = "Picasso";
+
+  public final int maxSize;
+  public final int size;
+  public final long cacheHits;
+  public final long cacheMisses;
+  public final long totalOriginalBitmapSize;
+  public final long totalTransformedBitmapSize;
+  public final long averageOriginalBitmapSize;
+  public final long averageTransformedBitmapSize;
+  public final int originalBitmapCount;
+  public final int transformedBitmapCount;
+
+  public final long timeStamp;
+
+  public StatsSnapshot(int maxSize, int size, long cacheHits, long cacheMisses,
+      long totalOriginalBitmapSize, long totalTransformedBitmapSize, long averageOriginalBitmapSize,
+      long averageTransformedBitmapSize, int originalBitmapCount, int transformedBitmapCount,
+      long timeStamp) {
+    this.maxSize = maxSize;
+    this.size = size;
+    this.cacheHits = cacheHits;
+    this.cacheMisses = cacheMisses;
+    this.totalOriginalBitmapSize = totalOriginalBitmapSize;
+    this.totalTransformedBitmapSize = totalTransformedBitmapSize;
+    this.averageOriginalBitmapSize = averageOriginalBitmapSize;
+    this.averageTransformedBitmapSize = averageTransformedBitmapSize;
+    this.originalBitmapCount = originalBitmapCount;
+    this.transformedBitmapCount = transformedBitmapCount;
+    this.timeStamp = timeStamp;
+  }
+
+  /** Prints out this {@link StatsSnapshot} into log. */
+  public void dump() {
+    StringWriter logWriter = new StringWriter();
+    dump(new PrintWriter(logWriter));
+    Log.i(TAG, logWriter.toString());
+  }
+
+  /** Prints out this {@link StatsSnapshot} with the the provided {@link PrintWriter}. */
+  public void dump(PrintWriter writer) {
+    writer.println("===============BEGIN PICASSO STATS ===============");
+    writer.println("Memory Cache Stats");
+    writer.print("  Max Cache Size: ");
+    writer.println(maxSize);
+    writer.print("  Cache Size: ");
+    writer.println(size);
+    writer.print("  Cache % Full: ");
+    writer.println((int) Math.ceil((float) size / maxSize * 100));
+    writer.print("  Cache Hits: ");
+    writer.println(cacheHits);
+    writer.print("  Cache Misses: ");
+    writer.println(cacheMisses);
+    writer.println("Bitmap Stats");
+    writer.print("  Total Bitmaps Decoded: ");
+    writer.println(originalBitmapCount);
+    writer.print("  Total Bitmap Size: ");
+    writer.println(totalOriginalBitmapSize);
+    writer.print("  Total Transformed Bitmaps: ");
+    writer.println(transformedBitmapCount);
+    writer.print("  Total Transformed Bitmap Size: ");
+    writer.println(totalTransformedBitmapSize);
+    writer.print("  Average Bitmap Size: ");
+    writer.println(averageOriginalBitmapSize);
+    writer.print("  Average Transformed Bitmap Size: ");
+    writer.println(averageTransformedBitmapSize);
+    writer.println("===============END PICASSO STATS ===============");
+    writer.flush();
+  }
+
+  @Override public String toString() {
+    return "StatsSnapshot{"
+        + "maxSize="
+        + maxSize
+        + ", size="
+        + size
+        + ", cacheHits="
+        + cacheHits
+        + ", cacheMisses="
+        + cacheMisses
+        + ", totalOriginalBitmapSize="
+        + totalOriginalBitmapSize
+        + ", totalTransformedBitmapSize="
+        + totalTransformedBitmapSize
+        + ", averageOriginalBitmapSize="
+        + averageOriginalBitmapSize
+        + ", averageTransformedBitmapSize="
+        + averageTransformedBitmapSize
+        + ", originalBitmapCount="
+        + originalBitmapCount
+        + ", transformedBitmapCount="
+        + transformedBitmapCount
+        + ", timeStamp="
+        + timeStamp
+        + '}';
+  }
+}

mobile/android/thirdparty/com/squareup/picasso/Target.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import android.graphics.Bitmap;
+import android.graphics.drawable.Drawable;
+
+import static com.squareup.picasso.Picasso.LoadedFrom;
+
+/**
+ * Represents an arbitrary listener for image loading.
+ * <p/>
+ * Objects implementing this class <strong>must</strong> have a working implementation of
+ * {@link #equals(Object)} and {@link #hashCode()} for proper storage internally. Instances of this
+ * interface will also be compared to determine if view recycling is occurring. It is recommended
+ * that you add this interface directly on to a custom view type when using in an adapter to ensure
+ * correct recycling behavior.
+ */
+public interface Target {
+  /**
+   * Callback when an image has been successfully loaded.
+   * <p/>
+   * <strong>Note:</strong> You must not recycle the bitmap.
+   */
+  void onBitmapLoaded(Bitmap bitmap, LoadedFrom from);
+
+  /** Callback indicating the image could not be successfully loaded. */
+  void onBitmapFailed(Drawable errorDrawable);
+
+  /** Callback invoked right before your request is submitted. */
+  void onPrepareLoad(Drawable placeHolderDrawable);
+}

mobile/android/thirdparty/com/squareup/picasso/TargetAction.java

@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import android.graphics.Bitmap;
+
+final class TargetAction extends Action<Target> {
+
+  TargetAction(Picasso picasso, Target target, Request data, boolean skipCache, String key) {
+    super(picasso, target, data, skipCache, false, 0, null, key);
+  }
+
+  @Override void complete(Bitmap result, Picasso.LoadedFrom from) {
+    if (result == null) {
+      throw new AssertionError(
+          String.format("Attempted to complete action with no result!\n%s", this));
+    }
+    Target target = getTarget();
+    if (target != null) {
+      target.onBitmapLoaded(result, from);
+      if (result.isRecycled()) {
+        throw new IllegalStateException("Target callback must not recycle bitmap!");
+      }
+    }
+  }
+
+  @Override void error() {
+    Target target = getTarget();
+    if (target != null) {
+      target.onBitmapFailed(errorDrawable);
+    }
+  }
+}

mobile/android/thirdparty/com/squareup/picasso/Transformation.java

@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import android.graphics.Bitmap;
+
+/** Image transformation. */
+public interface Transformation {
+  /**
+   * Transform the source bitmap into a new bitmap. If you create a new bitmap instance, you must
+   * call {@link android.graphics.Bitmap#recycle()} on {@code source}. You may return the original
+   * if no transformation is required.
+   */
+  Bitmap transform(Bitmap source);
+
+  /**
+   * Returns a unique key for the transformation, used for caching purposes. If the transformation
+   * has parameters (e.g. size, scale factor, etc) then these should be part of the key.
+   */
+  String key();
+}

mobile/android/thirdparty/com/squareup/picasso/UrlConnectionDownloader.java

@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import android.content.Context;
+import android.net.Uri;
+import android.net.http.HttpResponseCache;
+import android.os.Build;
+import java.io.File;
+import java.io.IOException;
+import java.net.HttpURLConnection;
+import java.net.URL;
+
+import static com.squareup.picasso.Utils.parseResponseSourceHeader;
+
+/**
+ * A {@link Downloader} which uses {@link HttpURLConnection} to download images. A disk cache of 2%
+ * of the total available space will be used (capped at 50MB) will automatically be installed in the
+ * application's cache directory, when available.
+ */
+public class UrlConnectionDownloader implements Downloader {
+  static final String RESPONSE_SOURCE = "X-Android-Response-Source";
+
+  private static final Object lock = new Object();
+  static volatile Object cache;
+
+  private final Context context;
+
+  public UrlConnectionDownloader(Context context) {
+    this.context = context.getApplicationContext();
+  }
+
+  protected HttpURLConnection openConnection(Uri path) throws IOException {
+    HttpURLConnection connection = (HttpURLConnection) new URL(path.toString()).openConnection();
+    connection.setConnectTimeout(Utils.DEFAULT_CONNECT_TIMEOUT);
+    connection.setReadTimeout(Utils.DEFAULT_READ_TIMEOUT);
+    return connection;
+  }
+
+  @Override public Response load(Uri uri, boolean localCacheOnly) throws IOException {
+    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
+      installCacheIfNeeded(context);
+    }
+
+    HttpURLConnection connection = openConnection(uri);
+    connection.setUseCaches(true);
+    if (localCacheOnly) {
+      connection.setRequestProperty("Cache-Control", "only-if-cached,max-age=" + Integer.MAX_VALUE);
+    }
+
+    int responseCode = connection.getResponseCode();
+    if (responseCode >= 300) {
+      connection.disconnect();
+      throw new ResponseException(responseCode + " " + connection.getResponseMessage());
+    }
+
+    boolean fromCache = parseResponseSourceHeader(connection.getHeaderField(RESPONSE_SOURCE));
+
+    return new Response(connection.getInputStream(), fromCache);
+  }
+
+  private static void installCacheIfNeeded(Context context) {
+    // DCL + volatile should be safe after Java 5.
+    if (cache == null) {
+      try {
+        synchronized (lock) {
+          if (cache == null) {
+            cache = ResponseCacheIcs.install(context);
+          }
+        }
+      } catch (IOException ignored) {
+      }
+    }
+  }
+
+  private static class ResponseCacheIcs {
+    static Object install(Context context) throws IOException {
+      File cacheDir = Utils.createDefaultCacheDir(context);
+      HttpResponseCache cache = HttpResponseCache.getInstalled();
+      if (cache == null) {
+        long maxSize = Utils.calculateDiskCacheSize(cacheDir);
+        cache = HttpResponseCache.install(cacheDir, maxSize);
+      }
+      return cache;
+    }
+  }
+}

mobile/android/thirdparty/com/squareup/picasso/Utils.java

@@ -0,0 +1,304 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * 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.squareup.picasso;
+
+import android.annotation.TargetApi;
+import android.app.ActivityManager;
+import android.content.ContentResolver;
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.content.res.Resources;
+import android.graphics.Bitmap;
+import android.os.Looper;
+import android.os.Process;
+import android.os.StatFs;
+import android.provider.Settings;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.List;
+import java.util.concurrent.ThreadFactory;
+
+import static android.content.Context.ACTIVITY_SERVICE;
+import static android.content.pm.ApplicationInfo.FLAG_LARGE_HEAP;
+import static android.os.Build.VERSION.SDK_INT;
+import static android.os.Build.VERSION_CODES.HONEYCOMB;
+import static android.os.Build.VERSION_CODES.HONEYCOMB_MR1;
+import static android.os.Process.THREAD_PRIORITY_BACKGROUND;
+import static android.provider.Settings.System.AIRPLANE_MODE_ON;
+
+final class Utils {
+  static final String THREAD_PREFIX = "Picasso-";
+  static final String THREAD_IDLE_NAME = THREAD_PREFIX + "Idle";
+  static final int DEFAULT_READ_TIMEOUT = 20 * 1000; // 20s
+  static final int DEFAULT_CONNECT_TIMEOUT = 15 * 1000; // 15s
+  private static final String PICASSO_CACHE = "picasso-cache";
+  private static final int KEY_PADDING = 50; // Determined by exact science.
+  private static final int MIN_DISK_CACHE_SIZE = 5 * 1024 * 1024; // 5MB
+  private static final int MAX_DISK_CACHE_SIZE = 50 * 1024 * 1024; // 50MB
+
+  /* WebP file header
+     0                   1                   2                   3
+     0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+    |      'R'      |      'I'      |      'F'      |      'F'      |
+    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+    |                           File Size                           |
+    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+    |      'W'      |      'E'      |      'B'      |      'P'      |
+    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+  */
+  private static final int WEBP_FILE_HEADER_SIZE = 12;
+  private static final String WEBP_FILE_HEADER_RIFF = "RIFF";
+  private static final String WEBP_FILE_HEADER_WEBP = "WEBP";
+
+  private Utils() {
+    // No instances.
+  }
+
+  static int getBitmapBytes(Bitmap bitmap) {
+    int result;
+    if (SDK_INT >= HONEYCOMB_MR1) {
+      result = BitmapHoneycombMR1.getByteCount(bitmap);
+    } else {
+      result = bitmap.getRowBytes() * bitmap.getHeight();
+    }
+    if (result < 0) {
+      throw new IllegalStateException("Negative size: " + bitmap);
+    }
+    return result;
+  }
+
+  static void checkNotMain() {
+    if (Looper.getMainLooper().getThread() == Thread.currentThread()) {
+      throw new IllegalStateException("Method call should not happen from the main thread.");
+    }
+  }
+
+  static String createKey(Request data) {
+    StringBuilder builder;
+
+    if (data.uri != null) {
+      String path = data.uri.toString();
+      builder = new StringBuilder(path.length() + KEY_PADDING);
+      builder.append(path);
+    } else {
+      builder = new StringBuilder(KEY_PADDING);
+      builder.append(data.resourceId);
+    }
+    builder.append('\n');
+
+    if (data.rotationDegrees != 0) {
+      builder.append("rotation:").append(data.rotationDegrees);
+      if (data.hasRotationPivot) {
+        builder.append('@').append(data.rotationPivotX).append('x').append(data.rotationPivotY);
+      }
+      builder.append('\n');
+    }
+    if (data.targetWidth != 0) {
+      builder.append("resize:").append(data.targetWidth).append('x').append(data.targetHeight);
+      builder.append('\n');
+    }
+    if (data.centerCrop) {
+      builder.append("centerCrop\n");
+    } else if (data.centerInside) {
+      builder.append("centerInside\n");
+    }
+
+    if (data.transformations != null) {
+      //noinspection ForLoopReplaceableByForEach
+      for (int i = 0, count = data.transformations.size(); i < count; i++) {
+        builder.append(data.transformations.get(i).key());
+        builder.append('\n');
+      }
+    }
+
+    return builder.toString();
+  }
+
+  static void closeQuietly(InputStream is) {
+    if (is == null) return;
+    try {
+      is.close();
+    } catch (IOException ignored) {
+    }
+  }
+
+  /** Returns {@code true} if header indicates the response body was loaded from the disk cache. */
+  static boolean parseResponseSourceHeader(String header) {
+    if (header == null) {
+      return false;
+    }
+    String[] parts = header.split(" ", 2);
+    if ("CACHE".equals(parts[0])) {
+      return true;
+    }
+    if (parts.length == 1) {
+      return false;
+    }
+    try {
+      return "CONDITIONAL_CACHE".equals(parts[0]) && Integer.parseInt(parts[1]) == 304;
+    } catch (NumberFormatException e) {
+      return false;
+    }
+  }
+
+  static Downloader createDefaultDownloader(Context context) {
+    return new UrlConnectionDownloader(context);
+  }
+
+  static File createDefaultCacheDir(Context context) {
+    File cache = new File(context.getApplicationContext().getCacheDir(), PICASSO_CACHE);
+    if (!cache.exists()) {
+      cache.mkdirs();
+    }
+    return cache;
+  }
+
+  static long calculateDiskCacheSize(File dir) {
+    long size = MIN_DISK_CACHE_SIZE;
+
+    try {
+      StatFs statFs = new StatFs(dir.getAbsolutePath());
+      long available = ((long) statFs.getBlockCount()) * statFs.getBlockSize();
+      // Target 2% of the total space.
+      size = available / 50;
+    } catch (IllegalArgumentException ignored) {
+    }
+
+    // Bound inside min/max size for disk cache.
+    return Math.max(Math.min(size, MAX_DISK_CACHE_SIZE), MIN_DISK_CACHE_SIZE);
+  }
+
+  static int calculateMemoryCacheSize(Context context) {
+    ActivityManager am = (ActivityManager) context.getSystemService(ACTIVITY_SERVICE);
+    boolean largeHeap = (context.getApplicationInfo().flags & FLAG_LARGE_HEAP) != 0;
+    int memoryClass = am.getMemoryClass();
+    if (largeHeap && SDK_INT >= HONEYCOMB) {
+      memoryClass = ActivityManagerHoneycomb.getLargeMemoryClass(am);
+    }
+    // Target ~15% of the available heap.
+    return 1024 * 1024 * memoryClass / 7;
+  }
+
+  static boolean isAirplaneModeOn(Context context) {
+    ContentResolver contentResolver = context.getContentResolver();
+    return Settings.System.getInt(contentResolver, AIRPLANE_MODE_ON, 0) != 0;
+  }
+
+  static boolean hasPermission(Context context, String permission) {
+    return context.checkCallingOrSelfPermission(permission) == PackageManager.PERMISSION_GRANTED;
+  }
+
+  static byte[] toByteArray(InputStream input) throws IOException {
+    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
+    byte[] buffer = new byte[1024 * 4];
+    int n = 0;
+    while (-1 != (n = input.read(buffer))) {
+      byteArrayOutputStream.write(buffer, 0, n);
+    }
+    return byteArrayOutputStream.toByteArray();
+  }
+
+  static boolean isWebPFile(InputStream stream) throws IOException {
+    byte[] fileHeaderBytes = new byte[WEBP_FILE_HEADER_SIZE];
+    boolean isWebPFile = false;
+    if (stream.read(fileHeaderBytes, 0, WEBP_FILE_HEADER_SIZE) == WEBP_FILE_HEADER_SIZE) {
+      // If a file's header starts with RIFF and end with WEBP, the file is a WebP file
+      isWebPFile = WEBP_FILE_HEADER_RIFF.equals(new String(fileHeaderBytes, 0, 4, "US-ASCII"))
+          && WEBP_FILE_HEADER_WEBP.equals(new String(fileHeaderBytes, 8, 4, "US-ASCII"));
+    }
+    return isWebPFile;
+  }
+
+  static int getResourceId(Resources resources, Request data) throws FileNotFoundException {
+    if (data.resourceId != 0 || data.uri == null) {
+      return data.resourceId;
+    }
+
+    String pkg = data.uri.getAuthority();
+    if (pkg == null) throw new FileNotFoundException("No package provided: " + data.uri);
+
+    int id;
+    List<String> segments = data.uri.getPathSegments();
+    if (segments == null || segments.isEmpty()) {
+      throw new FileNotFoundException("No path segments: " + data.uri);
+    } else if (segments.size() == 1) {
+      try {
+        id = Integer.parseInt(segments.get(0));
+      } catch (NumberFormatException e) {
+        throw new FileNotFoundException("Last path segment is not a resource ID: " + data.uri);
+      }
+    } else if (segments.size() == 2) {
+      String type = segments.get(0);
+      String name = segments.get(1);
+
+      id = resources.getIdentifier(name, type, pkg);
+    } else {
+      throw new FileNotFoundException("More than two path segments: " + data.uri);
+    }
+    return id;
+  }
+
+  static Resources getResources(Context context, Request data) throws FileNotFoundException {
+    if (data.resourceId != 0 || data.uri == null) {
+      return context.getResources();
+    }
+
+    String pkg = data.uri.getAuthority();
+    if (pkg == null) throw new FileNotFoundException("No package provided: " + data.uri);
+    try {
+      PackageManager pm = context.getPackageManager();
+      return pm.getResourcesForApplication(pkg);
+    } catch (PackageManager.NameNotFoundException e) {
+      throw new FileNotFoundException("Unable to obtain resources for package: " + data.uri);
+    }
+  }
+
+  @TargetApi(HONEYCOMB)
+  private static class ActivityManagerHoneycomb {
+    static int getLargeMemoryClass(ActivityManager activityManager) {
+      return activityManager.getLargeMemoryClass();
+    }
+  }
+
+  static class PicassoThreadFactory implements ThreadFactory {
+    @SuppressWarnings("NullableProblems")
+    public Thread newThread(Runnable r) {
+      return new PicassoThread(r);
+    }
+  }
+
+  private static class PicassoThread extends Thread {
+    public PicassoThread(Runnable r) {
+      super(r);
+    }
+
+    @Override public void run() {
+      Process.setThreadPriority(THREAD_PRIORITY_BACKGROUND);
+      super.run();
+    }
+  }
+
+  @TargetApi(HONEYCOMB_MR1)
+  private static class BitmapHoneycombMR1 {
+    static int getByteCount(Bitmap bitmap) {
+      return bitmap.getByteCount();
+    }
+  }
+}