1package eu.siacs.conversations.ui.adapter;
2
3import android.content.SharedPreferences;
4import android.content.res.Resources;
5import android.databinding.DataBindingUtil;
6import android.graphics.Bitmap;
7import android.graphics.drawable.BitmapDrawable;
8import android.graphics.drawable.Drawable;
9import android.os.AsyncTask;
10import android.preference.PreferenceManager;
11import android.view.LayoutInflater;
12import android.view.View;
13import android.view.ViewGroup;
14import android.widget.ArrayAdapter;
15import android.widget.ImageView;
16import android.widget.TextView;
17
18import com.wefika.flowlayout.FlowLayout;
19
20import java.lang.ref.WeakReference;
21import java.util.List;
22import java.util.concurrent.RejectedExecutionException;
23
24import eu.siacs.conversations.R;
25import eu.siacs.conversations.databinding.ContactBinding;
26import eu.siacs.conversations.entities.ListItem;
27import eu.siacs.conversations.ui.SettingsActivity;
28import eu.siacs.conversations.ui.XmppActivity;
29import eu.siacs.conversations.ui.util.Color;
30import eu.siacs.conversations.utils.EmojiWrapper;
31import eu.siacs.conversations.utils.IrregularUnicodeBlockDetector;
32import eu.siacs.conversations.utils.UIHelper;
33import rocks.xmpp.addr.Jid;
34
35public class ListItemAdapter extends ArrayAdapter<ListItem> {
36
37 protected XmppActivity activity;
38 protected boolean showDynamicTags = false;
39 private OnTagClickedListener mOnTagClickedListener = null;
40 private View.OnClickListener onTagTvClick = new View.OnClickListener() {
41 @Override
42 public void onClick(View view) {
43 if (view instanceof TextView && mOnTagClickedListener != null) {
44 TextView tv = (TextView) view;
45 final String tag = tv.getText().toString();
46 mOnTagClickedListener.onTagClicked(tag);
47 }
48 }
49 };
50
51 public ListItemAdapter(XmppActivity activity, List<ListItem> objects) {
52 super(activity, 0, objects);
53 this.activity = activity;
54 }
55
56 public static boolean cancelPotentialWork(ListItem item, ImageView imageView) {
57 final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
58
59 if (bitmapWorkerTask != null) {
60 final ListItem oldItem = bitmapWorkerTask.item;
61 if (oldItem == null || item != oldItem) {
62 bitmapWorkerTask.cancel(true);
63 } else {
64 return false;
65 }
66 }
67 return true;
68 }
69
70 private static BitmapWorkerTask getBitmapWorkerTask(ImageView imageView) {
71 if (imageView != null) {
72 final Drawable drawable = imageView.getDrawable();
73 if (drawable instanceof AsyncDrawable) {
74 final AsyncDrawable asyncDrawable = (AsyncDrawable) drawable;
75 return asyncDrawable.getBitmapWorkerTask();
76 }
77 }
78 return null;
79 }
80
81 public void refreshSettings() {
82 SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(activity);
83 this.showDynamicTags = preferences.getBoolean(SettingsActivity.SHOW_DYNAMIC_TAGS, false);
84 }
85
86 @Override
87 public View getView(int position, View view, ViewGroup parent) {
88 LayoutInflater inflater = activity.getLayoutInflater();
89 ListItem item = getItem(position);
90 ViewHolder viewHolder;
91 if (view == null) {
92 ContactBinding binding = DataBindingUtil.inflate(inflater,R.layout.contact,parent,false);
93 viewHolder = ViewHolder.get(binding);
94 view = binding.getRoot();
95 } else {
96 viewHolder = (ViewHolder) view.getTag();
97 }
98
99 List<ListItem.Tag> tags = item.getTags(activity);
100 if (tags.size() == 0 || !this.showDynamicTags) {
101 viewHolder.tags.setVisibility(View.GONE);
102 } else {
103 viewHolder.tags.setVisibility(View.VISIBLE);
104 viewHolder.tags.removeAllViewsInLayout();
105 for (ListItem.Tag tag : tags) {
106 TextView tv = (TextView) inflater.inflate(R.layout.list_item_tag, viewHolder.tags, false);
107 tv.setText(tag.getName());
108 tv.setBackgroundColor(tag.getColor());
109 tv.setOnClickListener(this.onTagTvClick);
110 viewHolder.tags.addView(tv);
111 }
112 }
113 final Jid jid = item.getJid();
114 if (jid != null) {
115 viewHolder.jid.setVisibility(View.VISIBLE);
116 viewHolder.jid.setText(IrregularUnicodeBlockDetector.style(activity, jid));
117 } else {
118 viewHolder.jid.setVisibility(View.GONE);
119 }
120 viewHolder.name.setText(EmojiWrapper.transform(item.getDisplayName()));
121 loadAvatar(item, viewHolder.avatar);
122 return view;
123 }
124
125 public void setOnTagClickedListener(OnTagClickedListener listener) {
126 this.mOnTagClickedListener = listener;
127 }
128
129 public void loadAvatar(ListItem item, ImageView imageView) {
130 if (cancelPotentialWork(item, imageView)) {
131 final Bitmap bm = activity.avatarService().get(item, activity.getPixel(48), true);
132 if (bm != null) {
133 cancelPotentialWork(item, imageView);
134 imageView.setImageBitmap(bm);
135 imageView.setBackgroundColor(0x00000000);
136 } else {
137 String seed = item.getJid() != null ? item.getJid().asBareJid().toString() : item.getDisplayName();
138 imageView.setBackgroundColor(UIHelper.getColorForName(seed));
139 imageView.setImageDrawable(null);
140 final BitmapWorkerTask task = new BitmapWorkerTask(imageView);
141 final AsyncDrawable asyncDrawable = new AsyncDrawable(activity.getResources(), null, task);
142 imageView.setImageDrawable(asyncDrawable);
143 try {
144 task.execute(item);
145 } catch (final RejectedExecutionException ignored) {
146 }
147 }
148 }
149 }
150
151 public interface OnTagClickedListener {
152 void onTagClicked(String tag);
153 }
154
155 private static class ViewHolder {
156 private TextView name;
157 private TextView jid;
158 private ImageView avatar;
159 private FlowLayout tags;
160
161 private ViewHolder() {
162
163 }
164
165 public static ViewHolder get(ContactBinding binding) {
166 ViewHolder viewHolder = new ViewHolder();
167 viewHolder.name = binding.contactDisplayName;
168 viewHolder.jid = binding.contactJid;
169 viewHolder.avatar = binding.contactPhoto;
170 viewHolder.tags = binding.tags;
171 binding.getRoot().setTag(viewHolder);
172 return viewHolder;
173 }
174 }
175
176 static class AsyncDrawable extends BitmapDrawable {
177 private final WeakReference<BitmapWorkerTask> bitmapWorkerTaskReference;
178
179 public AsyncDrawable(Resources res, Bitmap bitmap, BitmapWorkerTask bitmapWorkerTask) {
180 super(res, bitmap);
181 bitmapWorkerTaskReference = new WeakReference<>(bitmapWorkerTask);
182 }
183
184 public BitmapWorkerTask getBitmapWorkerTask() {
185 return bitmapWorkerTaskReference.get();
186 }
187 }
188
189 class BitmapWorkerTask extends AsyncTask<ListItem, Void, Bitmap> {
190 private final WeakReference<ImageView> imageViewReference;
191 private ListItem item = null;
192
193 public BitmapWorkerTask(ImageView imageView) {
194 imageViewReference = new WeakReference<>(imageView);
195 }
196
197 @Override
198 protected Bitmap doInBackground(ListItem... params) {
199 this.item = params[0];
200 return activity.avatarService().get(this.item, activity.getPixel(48), isCancelled());
201 }
202
203 @Override
204 protected void onPostExecute(Bitmap bitmap) {
205 if (bitmap != null && !isCancelled()) {
206 final ImageView imageView = imageViewReference.get();
207 if (imageView != null) {
208 imageView.setImageBitmap(bitmap);
209 imageView.setBackgroundColor(0x00000000);
210 }
211 }
212 }
213 }
214
215}