package eu.siacs.conversations.ui.adapter; import android.content.Context; import android.content.res.Resources; import android.graphics.Bitmap; import android.graphics.Typeface; import android.graphics.drawable.BitmapDrawable; import android.graphics.drawable.Drawable; import android.os.AsyncTask; import android.util.Pair; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ArrayAdapter; import android.widget.ImageView; import android.widget.TextView; import java.lang.ref.WeakReference; import java.util.List; import java.util.concurrent.RejectedExecutionException; import eu.siacs.conversations.R; import eu.siacs.conversations.entities.Conversation; import eu.siacs.conversations.entities.Message; import eu.siacs.conversations.entities.Transferable; import eu.siacs.conversations.ui.ConversationActivity; import eu.siacs.conversations.ui.XmppActivity; import eu.siacs.conversations.utils.UIHelper; public class ConversationAdapter extends ArrayAdapter { private XmppActivity activity; public ConversationAdapter(XmppActivity activity, List conversations) { super(activity, 0, conversations); this.activity = activity; } @Override public View getView(int position, View view, ViewGroup parent) { if (view == null) { LayoutInflater inflater = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE); view = inflater.inflate(R.layout.conversation_list_row,parent, false); } Conversation conversation = getItem(position); if (this.activity instanceof ConversationActivity) { View swipeableItem = view.findViewById(R.id.swipeable_item); ConversationActivity a = (ConversationActivity) this.activity; int c = a.highlightSelectedConversations() && conversation == a.getSelectedConversation() ? a.getSecondaryBackgroundColor() : a.getPrimaryBackgroundColor(); swipeableItem.setBackgroundColor(c); } TextView convName = (TextView) view.findViewById(R.id.conversation_name); if (conversation.getMode() == Conversation.MODE_SINGLE || activity.useSubjectToIdentifyConference()) { convName.setText(conversation.getName()); } else { convName.setText(conversation.getJid().toBareJid().toString()); } TextView mLastMessage = (TextView) view.findViewById(R.id.conversation_lastmsg); TextView mTimestamp = (TextView) view.findViewById(R.id.conversation_lastupdate); ImageView imagePreview = (ImageView) view.findViewById(R.id.conversation_lastimage); Message message = conversation.getLatestMessage(); if (!conversation.isRead()) { convName.setTypeface(null, Typeface.BOLD); } else { convName.setTypeface(null, Typeface.NORMAL); } if (message.getFileParams().width > 0 && (message.getTransferable() == null || message.getTransferable().getStatus() != Transferable.STATUS_DELETED)) { mLastMessage.setVisibility(View.GONE); imagePreview.setVisibility(View.VISIBLE); activity.loadBitmap(message, imagePreview); } else { Pair preview = UIHelper.getMessagePreview(activity,message); mLastMessage.setVisibility(View.VISIBLE); imagePreview.setVisibility(View.GONE); mLastMessage.setText(preview.first); if (preview.second) { if (conversation.isRead()) { mLastMessage.setTypeface(null, Typeface.ITALIC); } else { mLastMessage.setTypeface(null,Typeface.BOLD_ITALIC); } } else { if (conversation.isRead()) { mLastMessage.setTypeface(null,Typeface.NORMAL); } else { mLastMessage.setTypeface(null,Typeface.BOLD); } } } mTimestamp.setText(UIHelper.readableTimeDifference(activity,conversation.getLatestMessage().getTimeSent())); ImageView profilePicture = (ImageView) view.findViewById(R.id.conversation_image); loadAvatar(conversation,profilePicture); return view; } class BitmapWorkerTask extends AsyncTask { private final WeakReference imageViewReference; private Conversation conversation = null; public BitmapWorkerTask(ImageView imageView) { imageViewReference = new WeakReference<>(imageView); } @Override protected Bitmap doInBackground(Conversation... params) { return activity.avatarService().get(params[0], activity.getPixel(56)); } @Override protected void onPostExecute(Bitmap bitmap) { if (bitmap != null) { final ImageView imageView = imageViewReference.get(); if (imageView != null) { imageView.setImageBitmap(bitmap); imageView.setBackgroundColor(0x00000000); } } } } public void loadAvatar(Conversation conversation, ImageView imageView) { if (cancelPotentialWork(conversation, imageView)) { final Bitmap bm = activity.avatarService().get(conversation, activity.getPixel(56), true); if (bm != null) { imageView.setImageBitmap(bm); imageView.setBackgroundColor(0x00000000); } else { imageView.setBackgroundColor(UIHelper.getColorForName(conversation.getName())); imageView.setImageDrawable(null); final BitmapWorkerTask task = new BitmapWorkerTask(imageView); final AsyncDrawable asyncDrawable = new AsyncDrawable(activity.getResources(), null, task); imageView.setImageDrawable(asyncDrawable); try { task.execute(conversation); } catch (final RejectedExecutionException ignored) { } } } } public static boolean cancelPotentialWork(Conversation conversation, ImageView imageView) { final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView); if (bitmapWorkerTask != null) { final Conversation oldConversation = bitmapWorkerTask.conversation; if (oldConversation == null || conversation != oldConversation) { 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 bitmapWorkerTaskReference; public AsyncDrawable(Resources res, Bitmap bitmap, BitmapWorkerTask bitmapWorkerTask) { super(res, bitmap); bitmapWorkerTaskReference = new WeakReference<>(bitmapWorkerTask); } public BitmapWorkerTask getBitmapWorkerTask() { return bitmapWorkerTaskReference.get(); } } }