1package eu.siacs.conversations.ui.adapter;
2
3import android.content.Context;
4import android.content.res.Resources;
5import android.graphics.Bitmap;
6import android.graphics.Color;
7import android.graphics.Typeface;
8import android.graphics.drawable.BitmapDrawable;
9import android.graphics.drawable.Drawable;
10import android.os.AsyncTask;
11import android.util.Pair;
12import android.view.LayoutInflater;
13import android.view.View;
14import android.view.ViewGroup;
15import android.widget.ArrayAdapter;
16import android.widget.ImageView;
17import android.widget.TextView;
18
19import java.lang.ref.WeakReference;
20import java.util.List;
21import java.util.concurrent.RejectedExecutionException;
22
23import eu.siacs.conversations.R;
24import eu.siacs.conversations.entities.Conversation;
25import eu.siacs.conversations.entities.Downloadable;
26import eu.siacs.conversations.entities.Message;
27import eu.siacs.conversations.ui.ConversationActivity;
28import eu.siacs.conversations.ui.XmppActivity;
29import eu.siacs.conversations.utils.UIHelper;
30
31public class ConversationAdapter extends ArrayAdapter<Conversation> {
32
33 private XmppActivity activity;
34
35 public ConversationAdapter(XmppActivity activity,
36 List<Conversation> conversations) {
37 super(activity, 0, conversations);
38 this.activity = activity;
39 }
40
41 @Override
42 public View getView(int position, View view, ViewGroup parent) {
43 if (view == null) {
44 LayoutInflater inflater = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
45 view = inflater.inflate(R.layout.conversation_list_row,parent, false);
46 }
47 Conversation conversation = getItem(position);
48 if (this.activity instanceof ConversationActivity) {
49 View swipeableItem = view.findViewById(R.id.swipeable_item);
50 ConversationActivity a = (ConversationActivity) this.activity;
51 int c = !a.isConversationsOverviewHideable() && conversation == a.getSelectedConversation() ? a.getSecondaryBackgroundColor() : a.getPrimaryBackgroundColor();
52 swipeableItem.setBackgroundColor(c);
53 }
54 TextView convName = (TextView) view.findViewById(R.id.conversation_name);
55 if (conversation.getMode() == Conversation.MODE_SINGLE || activity.useSubjectToIdentifyConference()) {
56 convName.setText(conversation.getName());
57 } else {
58 convName.setText(conversation.getJid().toBareJid().toString());
59 }
60 TextView mLastMessage = (TextView) view.findViewById(R.id.conversation_lastmsg);
61 TextView mTimestamp = (TextView) view.findViewById(R.id.conversation_lastupdate);
62 ImageView imagePreview = (ImageView) view.findViewById(R.id.conversation_lastimage);
63
64 Message message = conversation.getLatestMessage();
65
66 if (!conversation.isRead()) {
67 convName.setTypeface(null, Typeface.BOLD);
68 } else {
69 convName.setTypeface(null, Typeface.NORMAL);
70 }
71
72 if (message.getImageParams().width > 0
73 && (message.getDownloadable() == null
74 || message.getDownloadable().getStatus() != Downloadable.STATUS_DELETED)) {
75 mLastMessage.setVisibility(View.GONE);
76 imagePreview.setVisibility(View.VISIBLE);
77 activity.loadBitmap(message, imagePreview);
78 } else {
79 Pair<String,Boolean> preview = UIHelper.getMessagePreview(activity,message);
80 mLastMessage.setVisibility(View.VISIBLE);
81 imagePreview.setVisibility(View.GONE);
82 mLastMessage.setText(preview.first);
83 if (preview.second) {
84 if (conversation.isRead()) {
85 mLastMessage.setTypeface(null, Typeface.ITALIC);
86 } else {
87 mLastMessage.setTypeface(null,Typeface.BOLD_ITALIC);
88 }
89 } else {
90 if (conversation.isRead()) {
91 mLastMessage.setTypeface(null,Typeface.NORMAL);
92 } else {
93 mLastMessage.setTypeface(null,Typeface.BOLD);
94 }
95 }
96 }
97
98 mTimestamp.setText(UIHelper.readableTimeDifference(activity,conversation.getLatestMessage().getTimeSent()));
99 ImageView profilePicture = (ImageView) view.findViewById(R.id.conversation_image);
100 loadAvatar(conversation,profilePicture);
101
102 return view;
103 }
104
105 class BitmapWorkerTask extends AsyncTask<Conversation, Void, Bitmap> {
106 private final WeakReference<ImageView> imageViewReference;
107 private Conversation conversation = null;
108
109 public BitmapWorkerTask(ImageView imageView) {
110 imageViewReference = new WeakReference<>(imageView);
111 }
112
113 @Override
114 protected Bitmap doInBackground(Conversation... params) {
115 return activity.avatarService().get(params[0], activity.getPixel(56));
116 }
117
118 @Override
119 protected void onPostExecute(Bitmap bitmap) {
120 if (bitmap != null) {
121 final ImageView imageView = imageViewReference.get();
122 if (imageView != null) {
123 imageView.setImageBitmap(bitmap);
124 imageView.setBackgroundColor(0x00000000);
125 }
126 }
127 }
128 }
129
130 public void loadAvatar(Conversation conversation, ImageView imageView) {
131 if (cancelPotentialWork(conversation, imageView)) {
132 final Bitmap bm = activity.avatarService().get(conversation, activity.getPixel(56), true);
133 if (bm != null) {
134 imageView.setImageBitmap(bm);
135 imageView.setBackgroundColor(0x00000000);
136 } else {
137 imageView.setBackgroundColor(UIHelper.getColorForName(conversation.getName()));
138 imageView.setImageDrawable(null);
139 final BitmapWorkerTask task = new BitmapWorkerTask(imageView);
140 final AsyncDrawable asyncDrawable = new AsyncDrawable(activity.getResources(), null, task);
141 imageView.setImageDrawable(asyncDrawable);
142 try {
143 task.execute(conversation);
144 } catch (final RejectedExecutionException ignored) {
145 }
146 }
147 }
148 }
149
150 public static boolean cancelPotentialWork(Conversation conversation, ImageView imageView) {
151 final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
152
153 if (bitmapWorkerTask != null) {
154 final Conversation oldConversation = bitmapWorkerTask.conversation;
155 if (oldConversation == null || conversation != oldConversation) {
156 bitmapWorkerTask.cancel(true);
157 } else {
158 return false;
159 }
160 }
161 return true;
162 }
163
164 private static BitmapWorkerTask getBitmapWorkerTask(ImageView imageView) {
165 if (imageView != null) {
166 final Drawable drawable = imageView.getDrawable();
167 if (drawable instanceof AsyncDrawable) {
168 final AsyncDrawable asyncDrawable = (AsyncDrawable) drawable;
169 return asyncDrawable.getBitmapWorkerTask();
170 }
171 }
172 return null;
173 }
174
175 static class AsyncDrawable extends BitmapDrawable {
176 private final WeakReference<BitmapWorkerTask> bitmapWorkerTaskReference;
177
178 public AsyncDrawable(Resources res, Bitmap bitmap, BitmapWorkerTask bitmapWorkerTask) {
179 super(res, bitmap);
180 bitmapWorkerTaskReference = new WeakReference<>(bitmapWorkerTask);
181 }
182
183 public BitmapWorkerTask getBitmapWorkerTask() {
184 return bitmapWorkerTaskReference.get();
185 }
186 }
187}