1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
|
/*
* Copyright (C) 2013 Dominik Schürmann <dominik@dominikschuermann.de>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.sufficientlysecure.keychain.ui.adapter;
import java.util.HashMap;
import java.util.Set;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
import org.sufficientlysecure.keychain.provider.KeychainContract.UserIds;
import org.sufficientlysecure.keychain.util.Log;
import se.emilsjolander.stickylistheaders.StickyListHeadersAdapter;
import android.annotation.SuppressLint;
import android.content.Context;
import android.database.Cursor;
import android.graphics.Color;
import android.support.v4.widget.CursorAdapter;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
/**
* Implements StickyListHeadersAdapter from library
*/
public class KeyListPublicAdapter extends CursorAdapter implements StickyListHeadersAdapter {
private LayoutInflater mInflater;
private int mSectionColumnIndex;
private int mIndexUserId;
@SuppressLint("UseSparseArrays")
private HashMap<Integer, Boolean> mSelection = new HashMap<Integer, Boolean>();
public KeyListPublicAdapter(Context context, Cursor c, int flags, int sectionColumnIndex) {
super(context, c, flags);
mInflater = LayoutInflater.from(context);
mSectionColumnIndex = sectionColumnIndex;
initIndex(c);
}
@Override
public Cursor swapCursor(Cursor newCursor) {
initIndex(newCursor);
return super.swapCursor(newCursor);
}
/**
* Get column indexes for performance reasons just once in constructor and swapCursor. For a
* performance comparison see http://stackoverflow.com/a/17999582
*
* @param cursor
*/
private void initIndex(Cursor cursor) {
if (cursor != null) {
mIndexUserId = cursor.getColumnIndexOrThrow(UserIds.USER_ID);
}
}
/**
* Bind cursor data to the item list view
*
* NOTE: CursorAdapter already implements the ViewHolder pattern in its getView() method. Thus
* no ViewHolder is required here.
*/
@Override
public void bindView(View view, Context context, Cursor cursor) {
TextView mainUserId = (TextView) view.findViewById(R.id.mainUserId);
mainUserId.setText(R.string.user_id_no_name);
TextView mainUserIdRest = (TextView) view.findViewById(R.id.mainUserIdRest);
mainUserIdRest.setText("");
String userId = cursor.getString(mIndexUserId);
if (userId != null) {
String[] userIdSplit = PgpKeyHelper.splitUserId(userId);
if (userIdSplit[0] != null && userIdSplit[0].length() > 0) {
mainUserId.setText(userIdSplit[0]);
}
if (userIdSplit[1] != null && userIdSplit[1].length() > 0) {
mainUserIdRest.setText(userIdSplit[1]);
}
}
}
@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
return mInflater.inflate(R.layout.key_list_item, null);
}
/**
* Creates a new header view and binds the section headers to it. It uses the ViewHolder
* pattern. Most functionality is similar to getView() from Android's CursorAdapter.
*
* NOTE: The variables mDataValid and mCursor are available due to the super class
* CursorAdapter.
*/
@Override
public View getHeaderView(int position, View convertView, ViewGroup parent) {
HeaderViewHolder holder;
if (convertView == null) {
holder = new HeaderViewHolder();
convertView = mInflater.inflate(R.layout.key_list_public_header, parent, false);
holder.text = (TextView) convertView.findViewById(R.id.stickylist_header_text);
convertView.setTag(holder);
} else {
holder = (HeaderViewHolder) convertView.getTag();
}
if (!mDataValid) {
// no data available at this point
Log.d(Constants.TAG, "getHeaderView: No data available at this point!");
return convertView;
}
if (!mCursor.moveToPosition(position)) {
throw new IllegalStateException("couldn't move cursor to position " + position);
}
// set header text as first char in user id
String userId = mCursor.getString(mSectionColumnIndex);
String headerText = convertView.getResources().getString(R.string.user_id_no_name);
if (userId != null && userId.length() > 0) {
headerText = "" + mCursor.getString(mSectionColumnIndex).subSequence(0, 1).charAt(0);
}
holder.text.setText(headerText);
return convertView;
}
/**
* Header IDs should be static, position=1 should always return the same Id that is.
*/
@Override
public long getHeaderId(int position) {
if (!mDataValid) {
// no data available at this point
Log.d(Constants.TAG, "getHeaderView: No data available at this point!");
return -1;
}
if (!mCursor.moveToPosition(position)) {
throw new IllegalStateException("couldn't move cursor to position " + position);
}
// return the first character of the name as ID because this is what
// headers private HashMap<Integer, Boolean> mSelection = new HashMap<Integer,
// Boolean>();are based upon
String userId = mCursor.getString(mSectionColumnIndex);
if (userId != null && userId.length() > 0) {
return userId.subSequence(0, 1).charAt(0);
} else {
return Long.MAX_VALUE;
}
}
class HeaderViewHolder {
TextView text;
}
/** -------------------------- MULTI-SELECTION METHODS -------------- */
public void setNewSelection(int position, boolean value) {
mSelection.put(position, value);
notifyDataSetChanged();
}
public boolean isPositionChecked(int position) {
Boolean result = mSelection.get(position);
return result == null ? false : result;
}
public Set<Integer> getCurrentCheckedPosition() {
return mSelection.keySet();
}
public void removeSelection(int position) {
mSelection.remove(position);
notifyDataSetChanged();
}
public void clearSelection() {
mSelection.clear();
notifyDataSetChanged();
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// let the adapter handle setting up the row views
View v = super.getView(position, convertView, parent);
/**
* Change color for multi-selection
*/
// default color
v.setBackgroundColor(Color.TRANSPARENT);
if (mSelection.get(position) != null) {
// this is a selected position, change color!
v.setBackgroundColor(parent.getResources().getColor(R.color.emphasis));
}
return v;
}
}
|
