diff options
Diffstat (limited to 'src/eu/siacs/conversations/ui/XmppActivity.java')
-rw-r--r-- | src/eu/siacs/conversations/ui/XmppActivity.java | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/src/eu/siacs/conversations/ui/XmppActivity.java b/src/eu/siacs/conversations/ui/XmppActivity.java index 11376eb74..174bab3a6 100644 --- a/src/eu/siacs/conversations/ui/XmppActivity.java +++ b/src/eu/siacs/conversations/ui/XmppActivity.java @@ -1,5 +1,9 @@ package eu.siacs.conversations.ui; +import java.io.FileNotFoundException; +import java.lang.ref.WeakReference; +import java.util.concurrent.RejectedExecutionException; + import eu.siacs.conversations.Config; import eu.siacs.conversations.R; import eu.siacs.conversations.entities.Account; @@ -19,16 +23,23 @@ import android.content.Context; import android.content.DialogInterface; import android.content.DialogInterface.OnClickListener; import android.content.IntentSender.SendIntentException; +import android.content.res.Resources; import android.content.Intent; import android.content.ServiceConnection; +import android.graphics.Bitmap; +import android.graphics.drawable.BitmapDrawable; +import android.graphics.drawable.Drawable; import android.net.Uri; +import android.os.AsyncTask; import android.os.Bundle; import android.os.IBinder; +import android.util.DisplayMetrics; import android.util.Log; import android.view.MenuItem; import android.view.View; import android.view.inputmethod.InputMethodManager; import android.widget.EditText; +import android.widget.ImageView; public abstract class XmppActivity extends Activity { @@ -44,6 +55,8 @@ public abstract class XmppActivity extends Activity { protected int mWarningTextColor; protected int mPrimaryColor; + private DisplayMetrics metrics; + protected interface OnValueEdited { public void onValueEdited(String value); } @@ -163,6 +176,7 @@ public abstract class XmppActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); + metrics = getResources().getDisplayMetrics(); ExceptionHelper.init(getApplicationContext()); mPrimaryTextColor = getResources().getColor(R.color.primarytext); mSecondaryTextColor = getResources().getColor(R.color.secondarytext); @@ -389,4 +403,103 @@ public abstract class XmppActivity extends Activity { public int getPrimaryColor() { return this.mPrimaryColor; } + + class BitmapWorkerTask extends AsyncTask<Message, Void, Bitmap> { + private final WeakReference<ImageView> imageViewReference; + private Message message = null; + + public BitmapWorkerTask(ImageView imageView) { + imageViewReference = new WeakReference<ImageView>(imageView); + } + + @Override + protected Bitmap doInBackground(Message... params) { + message = params[0]; + try { + return xmppConnectionService.getFileBackend().getThumbnail( + message, (int) (metrics.density * 288), false); + } catch (FileNotFoundException e) { + return null; + } + } + + @Override + protected void onPostExecute(Bitmap bitmap) { + if (imageViewReference != null && bitmap != null) { + final ImageView imageView = imageViewReference.get(); + if (imageView != null) { + imageView.setImageBitmap(bitmap); + imageView.setBackgroundColor(0x00000000); + } + } + } + } + + public void loadBitmap(Message message, ImageView imageView) { + Bitmap bm; + try { + bm = xmppConnectionService.getFileBackend().getThumbnail(message, + (int) (metrics.density * 288), true); + } catch (FileNotFoundException e) { + bm = null; + } + if (bm != null) { + imageView.setImageBitmap(bm); + imageView.setBackgroundColor(0x00000000); + } else { + if (cancelPotentialWork(message, imageView)) { + imageView.setBackgroundColor(0xff333333); + final BitmapWorkerTask task = new BitmapWorkerTask(imageView); + final AsyncDrawable asyncDrawable = new AsyncDrawable( + getResources(), null, task); + imageView.setImageDrawable(asyncDrawable); + try { + task.execute(message); + } catch (RejectedExecutionException e) { + return; + } + } + } + } + + public static boolean cancelPotentialWork(Message message, + ImageView imageView) { + final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView); + + if (bitmapWorkerTask != null) { + final Message oldMessage = bitmapWorkerTask.message; + if (oldMessage == null || message != oldMessage) { + bitmapWorkerTask.cancel(true); + } else { + return false; + } + } + return true; + } + + private static BitmapWorkerTask getBitmapWorkerTask(ImageView imageView) { + if (imageView != null) { + final Drawable drawable = imageView.getDrawable(); + if (drawable instanceof AsyncDrawable) { + final AsyncDrawable asyncDrawable = (AsyncDrawable) drawable; + return asyncDrawable.getBitmapWorkerTask(); + } + } + return null; + } + + static class AsyncDrawable extends BitmapDrawable { + private final WeakReference<BitmapWorkerTask> bitmapWorkerTaskReference; + + public AsyncDrawable(Resources res, Bitmap bitmap, + BitmapWorkerTask bitmapWorkerTask) { + super(res, bitmap); + bitmapWorkerTaskReference = new WeakReference<BitmapWorkerTask>( + bitmapWorkerTask); + } + + public BitmapWorkerTask getBitmapWorkerTask() { + return bitmapWorkerTaskReference.get(); + } + } } |