java/com/android/incallui/ContactsAsyncHelper.java - LeafOS-Project/android_packages_apps_Dialer - Gitiles

 /*
  * Copyright (C) 2008 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 package com.android.incallui;

 import android.app.Notification;
 import android.content.Context;
 import android.graphics.Bitmap;
 import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
 import android.net.Uri;
 import android.support.annotation.MainThread;
 import android.support.annotation.Nullable;
 import android.support.annotation.WorkerThread;
 import com.android.dialer.common.LogUtil;
 import com.android.dialer.common.concurrent.DialerExecutor;
 import com.android.dialer.common.concurrent.DialerExecutorComponent;
 import java.io.IOException;
 import java.io.InputStream;

 /** Helper class for loading contacts photo asynchronously. */
 public class ContactsAsyncHelper {

   /** Interface for a WorkerHandler result return. */
   interface OnImageLoadCompleteListener {

     /**
      * Called when the image load is complete. Must be called in main thread.
      *
      * @param token Integer passed in {@link ContactsAsyncHelper#startObtainPhotoAsync(int, Context,
      *     Uri, OnImageLoadCompleteListener, Object)}.
      * @param photo Drawable object obtained by the async load.
      * @param photoIcon Bitmap object obtained by the async load.
      * @param cookie Object passed in {@link ContactsAsyncHelper#startObtainPhotoAsync(int, Context,
      *     Uri, OnImageLoadCompleteListener, Object)}. Can be null iff. the original cookie is null.
      */
     @MainThread
     void onImageLoadComplete(int token, Drawable photo, Bitmap photoIcon, Object cookie);

     /** Called when image is loaded to udpate data. Must be called in worker thread. */
     @WorkerThread
     void onImageLoaded(int token, Drawable photo, Bitmap photoIcon, Object cookie);
   }

   /**
    * Starts an asynchronous image load. After finishing the load, {@link
    * OnImageLoadCompleteListener#onImageLoadComplete(int, Drawable, Bitmap, Object)} will be called.
    *
    * @param token Arbitrary integer which will be returned as the first argument of {@link
    *     OnImageLoadCompleteListener#onImageLoadComplete(int, Drawable, Bitmap, Object)}
    * @param context Context object used to do the time-consuming operation.
    * @param displayPhotoUri Uri to be used to fetch the photo
    * @param listener Callback object which will be used when the asynchronous load is done. Can be
    *     null, which means only the asynchronous load is done while there's no way to obtain the
    *     loaded photos.
    * @param cookie Arbitrary object the caller wants to remember, which will become the fourth
    *     argument of {@link OnImageLoadCompleteListener#onImageLoadComplete(int, Drawable, Bitmap,
    *     Object)}. Can be null, at which the callback will also has null for the argument.
    */
   static void startObtainPhotoAsync(
       int token,
       Context context,
       Uri displayPhotoUri,
       OnImageLoadCompleteListener listener,
       Object cookie) {
     // in case the source caller info is null, the URI will be null as well.
     // just update using the placeholder image in this case.
     if (displayPhotoUri == null) {
       LogUtil.e("ContactsAsyncHelper.startObjectPhotoAsync", "uri is missing");
       return;
     }

     // Added additional Cookie field in the callee to handle arguments
     // sent to the callback function.

     // setup arguments
     WorkerArgs args = new WorkerArgs();
     args.token = token;
     args.cookie = cookie;
     args.context = context;
     args.displayPhotoUri = displayPhotoUri;
     args.listener = listener;

     DialerExecutorComponent.get(context)
         .dialerExecutorFactory()
         .createNonUiTaskBuilder(new Worker())
         .onSuccess(
             output -> {
               if (args.listener != null) {
                 LogUtil.d(
                     "ContactsAsyncHelper.startObtainPhotoAsync",
                     "notifying listener: "
                         + args.listener
                         + " image: "
                         + args.displayPhotoUri
                         + " completed");
                 args.listener.onImageLoadComplete(
                     args.token, args.photo, args.photoIcon, args.cookie);
               }
             })
         .build()
         .executeParallel(args);
   }

   private static final class WorkerArgs {

     public int token;
     public Context context;
     public Uri displayPhotoUri;
     public Drawable photo;
     public Bitmap photoIcon;
     public Object cookie;
     public OnImageLoadCompleteListener listener;
   }

   private static class Worker implements DialerExecutor.Worker<WorkerArgs, Void> {

     @Nullable
     @Override
     public Void doInBackground(WorkerArgs args) throws Throwable {
       InputStream inputStream = null;
       try {
         try {
           inputStream = args.context.getContentResolver().openInputStream(args.displayPhotoUri);
         } catch (Exception e) {
           LogUtil.e(
               "ContactsAsyncHelper.Worker.doInBackground", "error opening photo input stream", e);
         }

         if (inputStream != null) {
           args.photo = Drawable.createFromStream(inputStream, args.displayPhotoUri.toString());

           // This assumes Drawable coming from contact database is usually
           // BitmapDrawable and thus we can have (down)scaled version of it.
           args.photoIcon = getPhotoIconWhenAppropriate(args.context, args.photo);

           LogUtil.d(
               "ContactsAsyncHelper.Worker.doInBackground",
               "loading image, URI: %s",
               args.displayPhotoUri);
         } else {
           args.photo = null;
           args.photoIcon = null;
           LogUtil.d(
               "ContactsAsyncHelper.Worker.doInBackground",
               "problem with image, URI: %s, using default image.",
               args.displayPhotoUri);
         }
         if (args.listener != null) {
           args.listener.onImageLoaded(args.token, args.photo, args.photoIcon, args.cookie);
         }
       } finally {
         if (inputStream != null) {
           try {
             inputStream.close();
           } catch (IOException e) {
             LogUtil.e(
                 "ContactsAsyncHelper.Worker.doInBackground", "Unable to close input stream.", e);
           }
         }
       }
       return null;
     }

     /**
      * Returns a Bitmap object suitable for {@link Notification}'s large icon. This might return
      * null when the given Drawable isn't BitmapDrawable, or if the system fails to create a scaled
      * Bitmap for the Drawable.
      */
     private Bitmap getPhotoIconWhenAppropriate(Context context, Drawable photo) {
       if (!(photo instanceof BitmapDrawable)) {
         return null;
       }
       int iconSize = context.getResources().getDimensionPixelSize(R.dimen.notification_icon_size);
       Bitmap orgBitmap = ((BitmapDrawable) photo).getBitmap();
       int orgWidth = orgBitmap.getWidth();
       int orgHeight = orgBitmap.getHeight();
       int longerEdge = orgWidth > orgHeight ? orgWidth : orgHeight;
       // We want downscaled one only when the original icon is too big.
       if (longerEdge > iconSize) {
         float ratio = ((float) longerEdge) / iconSize;
         int newWidth = (int) (orgWidth / ratio);
         int newHeight = (int) (orgHeight / ratio);
         // If the longer edge is much longer than the shorter edge, the latter may
         // become 0 which will cause a crash.
         if (newWidth <= 0 || newHeight <= 0) {
           LogUtil.w(
               "ContactsAsyncHelper.Worker.getPhotoIconWhenAppropriate",
               "Photo icon's width or height become 0.");
           return null;
         }

         // It is sure ratio >= 1.0f in any case and thus the newly created Bitmap
         // should be smaller than the original.
         return Bitmap.createScaledBitmap(orgBitmap, newWidth, newHeight, true);
       } else {
         return orgBitmap;
       }
     }
   }
 }
	/*
	* Copyright (C) 2008 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	package com.android.incallui;

	import android.app.Notification;
	import android.content.Context;
	import android.graphics.Bitmap;
	import android.graphics.drawable.BitmapDrawable;
	import android.graphics.drawable.Drawable;
	import android.net.Uri;
	import android.support.annotation.MainThread;
	import android.support.annotation.Nullable;
	import android.support.annotation.WorkerThread;
	import com.android.dialer.common.LogUtil;
	import com.android.dialer.common.concurrent.DialerExecutor;
	import com.android.dialer.common.concurrent.DialerExecutorComponent;
	import java.io.IOException;
	import java.io.InputStream;

	/** Helper class for loading contacts photo asynchronously. */
	public class ContactsAsyncHelper {

	/** Interface for a WorkerHandler result return. */
	interface OnImageLoadCompleteListener {

	/**
	* Called when the image load is complete. Must be called in main thread.
	*
	* @param token Integer passed in {@link ContactsAsyncHelper#startObtainPhotoAsync(int, Context,
	* Uri, OnImageLoadCompleteListener, Object)}.
	* @param photo Drawable object obtained by the async load.
	* @param photoIcon Bitmap object obtained by the async load.
	* @param cookie Object passed in {@link ContactsAsyncHelper#startObtainPhotoAsync(int, Context,
	* Uri, OnImageLoadCompleteListener, Object)}. Can be null iff. the original cookie is null.
	*/
	@MainThread
	void onImageLoadComplete(int token, Drawable photo, Bitmap photoIcon, Object cookie);

	/** Called when image is loaded to udpate data. Must be called in worker thread. */
	@WorkerThread
	void onImageLoaded(int token, Drawable photo, Bitmap photoIcon, Object cookie);
	}

	/**
	* Starts an asynchronous image load. After finishing the load, {@link
	* OnImageLoadCompleteListener#onImageLoadComplete(int, Drawable, Bitmap, Object)} will be called.
	*
	* @param token Arbitrary integer which will be returned as the first argument of {@link
	* OnImageLoadCompleteListener#onImageLoadComplete(int, Drawable, Bitmap, Object)}
	* @param context Context object used to do the time-consuming operation.
	* @param displayPhotoUri Uri to be used to fetch the photo
	* @param listener Callback object which will be used when the asynchronous load is done. Can be
	* null, which means only the asynchronous load is done while there's no way to obtain the
	* loaded photos.
	* @param cookie Arbitrary object the caller wants to remember, which will become the fourth
	* argument of {@link OnImageLoadCompleteListener#onImageLoadComplete(int, Drawable, Bitmap,
	* Object)}. Can be null, at which the callback will also has null for the argument.
	*/
	static void startObtainPhotoAsync(
	int token,
	Context context,
	Uri displayPhotoUri,
	OnImageLoadCompleteListener listener,
	Object cookie) {
	// in case the source caller info is null, the URI will be null as well.
	// just update using the placeholder image in this case.
	if (displayPhotoUri == null) {
	LogUtil.e("ContactsAsyncHelper.startObjectPhotoAsync", "uri is missing");
	return;
	}

	// Added additional Cookie field in the callee to handle arguments
	// sent to the callback function.

	// setup arguments
	WorkerArgs args = new WorkerArgs();
	args.token = token;
	args.cookie = cookie;
	args.context = context;
	args.displayPhotoUri = displayPhotoUri;
	args.listener = listener;

	DialerExecutorComponent.get(context)
	.dialerExecutorFactory()
	.createNonUiTaskBuilder(new Worker())
	.onSuccess(
	output -> {
	if (args.listener != null) {
	LogUtil.d(
	"ContactsAsyncHelper.startObtainPhotoAsync",
	"notifying listener: "
	+ args.listener
	+ " image: "
	+ args.displayPhotoUri
	+ " completed");
	args.listener.onImageLoadComplete(
	args.token, args.photo, args.photoIcon, args.cookie);
	}
	})
	.build()
	.executeParallel(args);
	}

	private static final class WorkerArgs {

	public int token;
	public Context context;
	public Uri displayPhotoUri;
	public Drawable photo;
	public Bitmap photoIcon;
	public Object cookie;
	public OnImageLoadCompleteListener listener;
	}

	private static class Worker implements DialerExecutor.Worker<WorkerArgs, Void> {

	@Nullable
	@Override
	public Void doInBackground(WorkerArgs args) throws Throwable {
	InputStream inputStream = null;
	try {
	try {
	inputStream = args.context.getContentResolver().openInputStream(args.displayPhotoUri);
	} catch (Exception e) {
	LogUtil.e(
	"ContactsAsyncHelper.Worker.doInBackground", "error opening photo input stream", e);
	}

	if (inputStream != null) {
	args.photo = Drawable.createFromStream(inputStream, args.displayPhotoUri.toString());

	// This assumes Drawable coming from contact database is usually
	// BitmapDrawable and thus we can have (down)scaled version of it.
	args.photoIcon = getPhotoIconWhenAppropriate(args.context, args.photo);

	LogUtil.d(
	"ContactsAsyncHelper.Worker.doInBackground",
	"loading image, URI: %s",
	args.displayPhotoUri);
	} else {
	args.photo = null;
	args.photoIcon = null;
	LogUtil.d(
	"ContactsAsyncHelper.Worker.doInBackground",
	"problem with image, URI: %s, using default image.",
	args.displayPhotoUri);
	}
	if (args.listener != null) {
	args.listener.onImageLoaded(args.token, args.photo, args.photoIcon, args.cookie);
	}
	} finally {
	if (inputStream != null) {
	try {
	inputStream.close();
	} catch (IOException e) {
	LogUtil.e(
	"ContactsAsyncHelper.Worker.doInBackground", "Unable to close input stream.", e);
	}
	}
	}
	return null;
	}

	/**
	* Returns a Bitmap object suitable for {@link Notification}'s large icon. This might return
	* null when the given Drawable isn't BitmapDrawable, or if the system fails to create a scaled
	* Bitmap for the Drawable.
	*/
	private Bitmap getPhotoIconWhenAppropriate(Context context, Drawable photo) {
	if (!(photo instanceof BitmapDrawable)) {
	return null;
	}
	int iconSize = context.getResources().getDimensionPixelSize(R.dimen.notification_icon_size);
	Bitmap orgBitmap = ((BitmapDrawable) photo).getBitmap();
	int orgWidth = orgBitmap.getWidth();
	int orgHeight = orgBitmap.getHeight();
	int longerEdge = orgWidth > orgHeight ? orgWidth : orgHeight;
	// We want downscaled one only when the original icon is too big.
	if (longerEdge > iconSize) {
	float ratio = ((float) longerEdge) / iconSize;
	int newWidth = (int) (orgWidth / ratio);
	int newHeight = (int) (orgHeight / ratio);
	// If the longer edge is much longer than the shorter edge, the latter may
	// become 0 which will cause a crash.
	if (newWidth <= 0 \|\| newHeight <= 0) {
	LogUtil.w(
	"ContactsAsyncHelper.Worker.getPhotoIconWhenAppropriate",
	"Photo icon's width or height become 0.");
	return null;
	}

	// It is sure ratio >= 1.0f in any case and thus the newly created Bitmap
	// should be smaller than the original.
	return Bitmap.createScaledBitmap(orgBitmap, newWidth, newHeight, true);
	} else {
	return orgBitmap;
	}
	}
	}
	}