1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.calendar.selectcalendars;
18
19import android.app.FragmentManager;
20import android.content.Context;
21import android.content.res.Resources;
22import android.database.Cursor;
23import android.graphics.Rect;
24import android.graphics.drawable.shapes.RectShape;
25import android.provider.CalendarContract.Calendars;
26import android.text.TextUtils;
27import android.view.LayoutInflater;
28import android.view.TouchDelegate;
29import android.view.View;
30import android.view.View.OnClickListener;
31import android.view.ViewGroup;
32import android.widget.AdapterView;
33import android.widget.BaseAdapter;
34import android.widget.CheckBox;
35import android.widget.ListAdapter;
36import android.widget.TextView;
37
38import com.android.calendar.CalendarColorPickerDialog;
39import com.android.calendar.R;
40import com.android.calendar.Utils;
41import com.android.calendar.selectcalendars.CalendarColorCache.OnCalendarColorsLoadedListener;
42
43import java.util.HashMap;
44
45public class SelectCalendarsSyncAdapter extends BaseAdapter
46        implements ListAdapter, AdapterView.OnItemClickListener, OnCalendarColorsLoadedListener {
47    private static final String TAG = "SelCalsAdapter";
48    private static final String COLOR_PICKER_DIALOG_TAG = "ColorPickerDialog";
49
50    private static int COLOR_CHIP_SIZE = 30;
51    private RectShape r = new RectShape();
52
53    private CalendarColorPickerDialog mColorPickerDialog;
54    private CalendarColorCache mCache;
55
56    private LayoutInflater mInflater;
57    private static final int LAYOUT = R.layout.calendar_sync_item;
58    private CalendarRow[] mData;
59    private HashMap<Long, CalendarRow> mChanges = new HashMap<Long, CalendarRow>();
60    private int mRowCount = 0;
61
62    private int mIdColumn;
63    private int mNameColumn;
64    private int mColorColumn;
65    private int mSyncedColumn;
66    private int mAccountNameColumn;
67    private int mAccountTypeColumn;
68
69    private boolean mIsTablet;
70    private FragmentManager mFragmentManager;
71    private int mColorViewTouchAreaIncrease;
72
73
74    private final String mSyncedString;
75    private final String mNotSyncedString;
76
77    public class CalendarRow {
78        long id;
79        String displayName;
80        int color;
81        boolean synced;
82        boolean originalSynced;
83        String accountName;
84        String accountType;
85    }
86
87    public SelectCalendarsSyncAdapter(Context context, Cursor c, FragmentManager manager) {
88        super();
89        initData(c);
90        mCache = new CalendarColorCache(context, this);
91        mFragmentManager = manager;
92        mColorPickerDialog = (CalendarColorPickerDialog)
93                manager.findFragmentByTag(COLOR_PICKER_DIALOG_TAG);
94        mColorViewTouchAreaIncrease = context.getResources()
95                .getDimensionPixelSize(R.dimen.color_view_touch_area_increase);
96        mIsTablet = Utils.getConfigBool(context, R.bool.tablet_config);
97        mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
98        COLOR_CHIP_SIZE *= context.getResources().getDisplayMetrics().density;
99        r.resize(COLOR_CHIP_SIZE, COLOR_CHIP_SIZE);
100        Resources res = context.getResources();
101        mSyncedString = res.getString(R.string.synced);
102        mNotSyncedString = res.getString(R.string.not_synced);
103    }
104
105    private void initData(Cursor c) {
106        if (c == null) {
107            mRowCount = 0;
108            mData = null;
109            return;
110        }
111
112        mIdColumn = c.getColumnIndexOrThrow(Calendars._ID);
113        mNameColumn = c.getColumnIndexOrThrow(Calendars.CALENDAR_DISPLAY_NAME);
114        mColorColumn = c.getColumnIndexOrThrow(Calendars.CALENDAR_COLOR);
115        mSyncedColumn = c.getColumnIndexOrThrow(Calendars.SYNC_EVENTS);
116        mAccountNameColumn = c.getColumnIndexOrThrow(Calendars.ACCOUNT_NAME);
117        mAccountTypeColumn = c.getColumnIndexOrThrow(Calendars.ACCOUNT_TYPE);
118
119        mRowCount = c.getCount();
120        mData = new CalendarRow[mRowCount];
121        c.moveToPosition(-1);
122        int p = 0;
123        while (c.moveToNext()) {
124            long id = c.getLong(mIdColumn);
125            mData[p] = new CalendarRow();
126            mData[p].id = id;
127            mData[p].displayName = c.getString(mNameColumn);
128            mData[p].color = c.getInt(mColorColumn);
129            mData[p].originalSynced = c.getInt(mSyncedColumn) != 0;
130            mData[p].accountName = c.getString(mAccountNameColumn);
131            mData[p].accountType = c.getString(mAccountTypeColumn);
132            if (mChanges.containsKey(id)) {
133                mData[p].synced = mChanges.get(id).synced;
134            } else {
135                mData[p].synced = mData[p].originalSynced;
136            }
137            p++;
138        }
139    }
140
141    public void changeCursor(Cursor c) {
142        initData(c);
143        notifyDataSetChanged();
144    }
145
146    @Override
147    public View getView(final int position, View convertView, ViewGroup parent) {
148        if (position >= mRowCount) {
149            return null;
150        }
151        String name = mData[position].displayName;
152        boolean selected = mData[position].synced;
153        int color = Utils.getDisplayColorFromColor(mData[position].color);
154        View view;
155        if (convertView == null) {
156            view = mInflater.inflate(LAYOUT, parent, false);
157            final View delegate = view.findViewById(R.id.color);
158            final View delegateParent = (View) delegate.getParent();
159            delegateParent.post(new Runnable() {
160
161                @Override
162                public void run() {
163                    final Rect r = new Rect();
164                    delegate.getHitRect(r);
165                    r.top -= mColorViewTouchAreaIncrease;
166                    r.bottom += mColorViewTouchAreaIncrease;
167                    r.left -= mColorViewTouchAreaIncrease;
168                    r.right += mColorViewTouchAreaIncrease;
169                    delegateParent.setTouchDelegate(new TouchDelegate(r, delegate));
170                }
171            });
172        } else {
173            view = convertView;
174        }
175
176        view.setTag(mData[position]);
177
178        CheckBox cb = (CheckBox) view.findViewById(R.id.sync);
179        cb.setChecked(selected);
180
181        if (selected) {
182            setText(view, R.id.status, mSyncedString);
183        } else {
184            setText(view, R.id.status, mNotSyncedString);
185        }
186
187        View colorView = view.findViewById(R.id.color);
188        colorView.setEnabled(hasMoreColors(position));
189        colorView.setBackgroundColor(color);
190        colorView.setOnClickListener(new OnClickListener() {
191
192            @Override
193            public void onClick(View v) {
194                // Purely for sanity check--view should be disabled if account has no more colors
195                if (!hasMoreColors(position)) {
196                    return;
197                }
198
199                if (mColorPickerDialog == null) {
200                    mColorPickerDialog = CalendarColorPickerDialog.newInstance(mData[position].id,
201                            mIsTablet);
202                } else {
203                    mColorPickerDialog.setCalendarId(mData[position].id);
204                }
205                mFragmentManager.executePendingTransactions();
206                if (!mColorPickerDialog.isAdded()) {
207                    mColorPickerDialog.show(mFragmentManager, COLOR_PICKER_DIALOG_TAG);
208                }
209            }
210        });
211
212        setText(view, R.id.calendar, name);
213        return view;
214    }
215
216    private boolean hasMoreColors(int position) {
217        return mCache.hasColors(mData[position].accountName, mData[position].accountType);
218    }
219
220    private static void setText(View view, int id, String text) {
221        if (TextUtils.isEmpty(text)) {
222            return;
223        }
224        TextView textView = (TextView) view.findViewById(id);
225        textView.setText(text);
226    }
227
228    @Override
229    public int getCount() {
230        return mRowCount;
231    }
232
233    @Override
234    public Object getItem(int position) {
235        if (position >= mRowCount) {
236            return null;
237        }
238        CalendarRow item = mData[position];
239        return item;
240    }
241
242    @Override
243    public long getItemId(int position) {
244        if (position >= mRowCount) {
245            return 0;
246        }
247        return mData[position].id;
248    }
249
250    @Override
251    public boolean hasStableIds() {
252        return true;
253    }
254
255    public int getSynced(int position) {
256        return mData[position].synced ? 1 : 0;
257    }
258
259    @Override
260    public void onItemClick(AdapterView<?> parent, View view, int position, long id)  {
261        CalendarRow row = (CalendarRow) view.getTag();
262        row.synced = !row.synced;
263
264        String status;
265        if (row.synced) {
266            status = mSyncedString;
267        } else {
268            status = mNotSyncedString;
269        }
270        setText(view, R.id.status, status);
271
272        CheckBox cb = (CheckBox) view.findViewById(R.id.sync);
273        cb.setChecked(row.synced);
274
275        // There is some data loss in long -> int, but we should never see it in
276        // practice regarding calendar ids.
277        mChanges.put(row.id, row);
278    }
279
280    public HashMap<Long, CalendarRow> getChanges() {
281        return mChanges;
282    }
283
284    @Override
285    public void onCalendarColorsLoaded() {
286        notifyDataSetChanged();
287    }
288}
289