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.LinearLayout;
17import android.widget.TextView;
18
19import com.wefika.flowlayout.FlowLayout;
20
21import java.lang.ref.WeakReference;
22import java.util.List;
23import java.util.concurrent.RejectedExecutionException;
24
25import eu.siacs.conversations.R;
26import eu.siacs.conversations.entities.ListItem;
27import eu.siacs.conversations.ui.XmppActivity;
28import eu.siacs.conversations.utils.UIHelper;
29import eu.siacs.conversations.xmpp.jid.Jid;
30
31public class ListItemAdapter extends ArrayAdapter<ListItem> {
32
33 protected XmppActivity activity;
34 protected boolean showDynamicTags = false;
35 private View.OnClickListener onTagTvClick = new View.OnClickListener() {
36 @Override
37 public void onClick(View view) {
38 if (view instanceof TextView && mOnTagClickedListener != null) {
39 TextView tv = (TextView) view;
40 final String tag = tv.getText().toString();
41 mOnTagClickedListener.onTagClicked(tag);
42 }
43 }
44 };
45 private OnTagClickedListener mOnTagClickedListener = null;
46
47 public ListItemAdapter(XmppActivity activity, List<ListItem> objects) {
48 super(activity, 0, objects);
49 this.activity = activity;
50 SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(activity);
51 this.showDynamicTags = preferences.getBoolean("show_dynamic_tags",false);
52 }
53
54 @Override
55 public View getView(int position, View view, ViewGroup parent) {
56 LayoutInflater inflater = (LayoutInflater) getContext()
57 .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
58 ListItem item = getItem(position);
59 if (view == null) {
60 view = inflater.inflate(R.layout.contact, parent, false);
61 }
62 TextView tvName = (TextView) view.findViewById(R.id.contact_display_name);
63 TextView tvJid = (TextView) view.findViewById(R.id.contact_jid);
64 ImageView picture = (ImageView) view.findViewById(R.id.contact_photo);
65 FlowLayout tagLayout = (FlowLayout) view.findViewById(R.id.tags);
66
67 List<ListItem.Tag> tags = item.getTags(activity);
68 if (tags.size() == 0 || !this.showDynamicTags) {
69 tagLayout.setVisibility(View.GONE);
70 } else {
71 tagLayout.setVisibility(View.VISIBLE);
72 tagLayout.removeAllViewsInLayout();
73 for(ListItem.Tag tag : tags) {
74 TextView tv = (TextView) inflater.inflate(R.layout.list_item_tag,tagLayout,false);
75 tv.setText(tag.getName());
76 tv.setBackgroundColor(tag.getColor());
77 tv.setOnClickListener(this.onTagTvClick);
78 tagLayout.addView(tv);
79 }
80 }
81 final String jid = item.getDisplayJid();
82 if (jid != null) {
83 tvJid.setVisibility(View.VISIBLE);
84 tvJid.setText(jid);
85 } else {
86 tvJid.setVisibility(View.GONE);
87 }
88 tvName.setText(item.getDisplayName());
89 loadAvatar(item,picture);
90 return view;
91 }
92
93 public void setOnTagClickedListener(OnTagClickedListener listener) {
94 this.mOnTagClickedListener = listener;
95 }
96
97 public interface OnTagClickedListener {
98 void onTagClicked(String tag);
99 }
100
101 class BitmapWorkerTask extends AsyncTask<ListItem, Void, Bitmap> {
102 private final WeakReference<ImageView> imageViewReference;
103 private ListItem item = null;
104
105 public BitmapWorkerTask(ImageView imageView) {
106 imageViewReference = new WeakReference<>(imageView);
107 }
108
109 @Override
110 protected Bitmap doInBackground(ListItem... params) {
111 return activity.avatarService().get(params[0], activity.getPixel(48), isCancelled());
112 }
113
114 @Override
115 protected void onPostExecute(Bitmap bitmap) {
116 if (bitmap != null && !isCancelled()) {
117 final ImageView imageView = imageViewReference.get();
118 if (imageView != null) {
119 imageView.setImageBitmap(bitmap);
120 imageView.setBackgroundColor(0x00000000);
121 }
122 }
123 }
124 }
125
126 public void loadAvatar(ListItem item, ImageView imageView) {
127 if (cancelPotentialWork(item, imageView)) {
128 final Bitmap bm = activity.avatarService().get(item,activity.getPixel(48),true);
129 if (bm != null) {
130 cancelPotentialWork(item, imageView);
131 imageView.setImageBitmap(bm);
132 imageView.setBackgroundColor(0x00000000);
133 } else {
134 imageView.setBackgroundColor(UIHelper.getColorForName(item.getDisplayName()));
135 imageView.setImageDrawable(null);
136 final BitmapWorkerTask task = new BitmapWorkerTask(imageView);
137 final AsyncDrawable asyncDrawable = new AsyncDrawable(activity.getResources(), null, task);
138 imageView.setImageDrawable(asyncDrawable);
139 try {
140 task.execute(item);
141 } catch (final RejectedExecutionException ignored) {
142 }
143 }
144 }
145 }
146
147 public static boolean cancelPotentialWork(ListItem item, ImageView imageView) {
148 final BitmapWorkerTask bitmapWorkerTask = getBitmapWorkerTask(imageView);
149
150 if (bitmapWorkerTask != null) {
151 final ListItem oldItem = bitmapWorkerTask.item;
152 if (oldItem == null || item != oldItem) {
153 bitmapWorkerTask.cancel(true);
154 } else {
155 return false;
156 }
157 }
158 return true;
159 }
160
161 private static BitmapWorkerTask getBitmapWorkerTask(ImageView imageView) {
162 if (imageView != null) {
163 final Drawable drawable = imageView.getDrawable();
164 if (drawable instanceof AsyncDrawable) {
165 final AsyncDrawable asyncDrawable = (AsyncDrawable) drawable;
166 return asyncDrawable.getBitmapWorkerTask();
167 }
168 }
169 return null;
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}