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