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.camera.ui;
18
19import com.android.camera.CameraSettings;
20import com.android.camera.ListPreference;
21import com.android.camera.PreferenceGroup;
22import com.android.camera.R;
23import com.android.camera.RecordLocationPreference;
24
25import android.content.Context;
26import android.util.AttributeSet;
27import android.view.View;
28import android.view.LayoutInflater;
29import android.view.ViewGroup;
30import android.widget.AdapterView;
31import android.widget.ListView;
32import android.widget.ArrayAdapter;
33
34import java.util.ArrayList;
35import java.util.List;
36
37/* A popup window that contains several camera settings. */
38public class OtherSettingsPopup extends AbstractSettingPopup
39        implements InLineSettingItem.Listener,
40        AdapterView.OnItemClickListener {
41    private static final String TAG = "OtherSettingsPopup";
42
43    private Listener mListener;
44    private ArrayList<ListPreference> mListItem = new ArrayList<ListPreference>();
45
46    static public interface Listener {
47        public void onSettingChanged();
48        public void onRestorePreferencesClicked();
49    }
50
51    private class OtherSettingsAdapter extends ArrayAdapter {
52        LayoutInflater mInflater;
53
54        OtherSettingsAdapter() {
55            super(OtherSettingsPopup.this.getContext(), 0, mListItem);
56            mInflater = LayoutInflater.from(getContext());
57        }
58
59        private int getSettingLayoutId(ListPreference pref) {
60            // If the preference is null, it will be the only item , i.e.
61            // 'Restore setting' in the popup window.
62            if (pref == null) return R.layout.in_line_setting_restore;
63
64            // Currently, the RecordLocationPreference is the only setting
65            // which applies the on/off switch.
66            if (CameraSettings.KEY_RECORD_LOCATION.equals(pref.getKey())) {
67                return R.layout.in_line_setting_switch;
68            }
69            return R.layout.in_line_setting_knob;
70        }
71
72        @Override
73        public View getView(int position, View convertView, ViewGroup parent) {
74            if (convertView != null) return convertView;
75
76            ListPreference pref = mListItem.get(position);
77
78            int viewLayoutId = getSettingLayoutId(pref);
79            InLineSettingItem view = (InLineSettingItem)
80                    mInflater.inflate(viewLayoutId, parent, false);
81
82            view.initialize(pref); // no init for restore one
83            view.setSettingChangedListener(OtherSettingsPopup.this);
84            return view;
85        }
86    }
87
88    public void setSettingChangedListener(Listener listener) {
89        mListener = listener;
90    }
91
92    public OtherSettingsPopup(Context context, AttributeSet attrs) {
93        super(context, attrs);
94    }
95
96    public void initialize(PreferenceGroup group, String[] keys) {
97        // Prepare the setting items.
98        for (int i = 0; i < keys.length; ++i) {
99            ListPreference pref = group.findPreference(keys[i]);
100            if (pref != null) mListItem.add(pref);
101        }
102
103        // Prepare the restore setting line.
104        mListItem.add(null);
105
106        ArrayAdapter mListItemAdapter = new OtherSettingsAdapter();
107        ((ListView) mSettingList).setAdapter(mListItemAdapter);
108        ((ListView) mSettingList).setOnItemClickListener(this);
109        ((ListView) mSettingList).setSelector(android.R.color.transparent);
110    }
111
112    @Override
113    public void onSettingChanged() {
114        if (mListener != null) {
115            mListener.onSettingChanged();
116        }
117    }
118
119    // Scene mode can override other camera settings (ex: flash mode).
120    public void overrideSettings(final String ... keyvalues) {
121        int count = mSettingList.getChildCount();
122        for (int i = 0; i < keyvalues.length; i += 2) {
123            String key = keyvalues[i];
124            String value = keyvalues[i + 1];
125            for (int j = 0; j < count; j++) {
126                ListPreference pref = (ListPreference) mListItem.get(j);
127                if (pref != null && key.equals(pref.getKey())) {
128                    InLineSettingItem settingItem =
129                            (InLineSettingItem) mSettingList.getChildAt(j);
130                    settingItem.overrideSettings(value);
131                }
132            }
133        }
134    }
135
136    @Override
137    public void onItemClick(AdapterView<?> parent, View view, int position,
138            long id) {
139        if ((position == mListItem.size() - 1) && (mListener != null)) {
140            mListener.onRestorePreferencesClicked();
141        }
142    }
143
144    @Override
145    public void reloadPreference() {
146        int count = mSettingList.getChildCount();
147        for (int i = 0; i < count; i++) {
148            ListPreference pref = (ListPreference) mListItem.get(i);
149            if (pref != null) {
150                InLineSettingItem settingItem =
151                        (InLineSettingItem) mSettingList.getChildAt(i);
152                settingItem.reloadPreference();
153            }
154        }
155    }
156}
157