NavBarTuner.java revision de850bbcaa61c1874b803f2086443febbafd81a4 
1/*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
5 * except in compliance with the License. You may obtain a copy of the License at
6 *
7 *      http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software distributed under the
10 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
11 * KIND, either express or implied. See the License for the specific language governing
12 * permissions and limitations under the License.
13 */
14
15package com.android.systemui.tuner;
16
17import static com.android.systemui.statusbar.phone.NavigationBarInflaterView.KEY;
18import static com.android.systemui.statusbar.phone.NavigationBarInflaterView.KEY_CODE_END;
19import static com.android.systemui.statusbar.phone.NavigationBarInflaterView.KEY_CODE_START;
20import static com.android.systemui.statusbar.phone.NavigationBarInflaterView.KEY_IMAGE_DELIM;
21import static com.android.systemui.statusbar.phone.NavigationBarInflaterView.MENU_IME;
22import static com.android.systemui.statusbar.phone.NavigationBarInflaterView.NAVSPACE;
23import static com.android.systemui.statusbar.phone.NavigationBarInflaterView.NAV_BAR_LEFT;
24import static com.android.systemui.statusbar.phone.NavigationBarInflaterView.NAV_BAR_RIGHT;
25import static com.android.systemui.statusbar.phone.NavigationBarInflaterView.NAV_BAR_VIEWS;
26import static com.android.systemui.statusbar.phone.NavigationBarInflaterView.extractButton;
27import static com.android.systemui.statusbar.phone.NavigationBarInflaterView.extractImage;
28import static com.android.systemui.statusbar.phone.NavigationBarInflaterView.extractKeycode;
29
30import android.annotation.Nullable;
31import android.app.AlertDialog;
32import android.content.DialogInterface;
33import android.content.DialogInterface.OnClickListener;
34import android.content.res.Resources;
35import android.graphics.Color;
36import android.graphics.drawable.Drawable;
37import android.graphics.drawable.Icon;
38import android.os.Bundle;
39import android.os.Handler;
40import android.support.v14.preference.PreferenceFragment;
41import android.support.v7.preference.DropDownPreference;
42import android.support.v7.preference.ListPreference;
43import android.support.v7.preference.Preference;
44import android.support.v7.preference.Preference.OnPreferenceChangeListener;
45import android.support.v7.preference.Preference.OnPreferenceClickListener;
46import android.support.v7.preference.PreferenceCategory;
47import android.text.SpannableStringBuilder;
48import android.text.style.ImageSpan;
49import android.util.Log;
50import android.util.TypedValue;
51import android.view.KeyEvent;
52import android.widget.EditText;
53
54import com.android.systemui.Dependency;
55import com.android.systemui.R;
56import com.android.systemui.statusbar.phone.NavigationBarInflaterView;
57import com.android.systemui.tuner.TunerService.Tunable;
58
59import java.util.ArrayList;
60
61public class NavBarTuner extends PreferenceFragment {
62
63    private static final String LAYOUT = "layout";
64    private static final String LEFT = "left";
65    private static final String RIGHT = "right";
66
67    private static final String TYPE = "type";
68    private static final String KEYCODE = "keycode";
69    private static final String ICON = "icon";
70
71    private static final int[] ICONS = new int[]{
72            R.drawable.ic_qs_circle,
73            R.drawable.ic_add,
74            R.drawable.ic_remove,
75            R.drawable.ic_left,
76            R.drawable.ic_right,
77            R.drawable.ic_menu,
78    };
79
80    private final ArrayList<Tunable> mTunables = new ArrayList<>();
81    private Handler mHandler;
82
83    @Override
84    public void onCreate(@Nullable Bundle savedInstanceState) {
85        mHandler = new Handler();
86        super.onCreate(savedInstanceState);
87    }
88
89    @Override
90    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
91        super.onActivityCreated(savedInstanceState);
92        getActivity().getActionBar().setDisplayHomeAsUpEnabled(true);
93    }
94
95    @Override
96    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
97        addPreferencesFromResource(R.xml.nav_bar_tuner);
98        bindLayout((ListPreference) findPreference(LAYOUT));
99        bindButton((PreferenceCategory) findPreference(LEFT),
100                NAV_BAR_LEFT, NAVSPACE);
101        bindButton((PreferenceCategory) findPreference(RIGHT),
102                NAV_BAR_RIGHT, MENU_IME);
103    }
104
105    @Override
106    public void onDestroy() {
107        super.onDestroy();
108        mTunables.forEach(t -> Dependency.get(TunerService.class).removeTunable(t));
109    }
110
111    private void addTunable(Tunable tunable, String... keys) {
112        mTunables.add(tunable);
113        Dependency.get(TunerService.class).addTunable(tunable, keys);
114    }
115
116    private void bindLayout(ListPreference preference) {
117        addTunable((key, newValue) -> mHandler.post(() -> {
118            String val = newValue;
119            if (val == null) {
120                val = "default";
121            }
122            preference.setValue(val);
123        }), NAV_BAR_VIEWS);
124        preference.setOnPreferenceChangeListener((preference1, newValue) -> {
125            String val = (String) newValue;
126            if ("default".equals(val)) val = null;
127            Dependency.get(TunerService.class).setValue(NAV_BAR_VIEWS, val);
128            return true;
129        });
130    }
131
132    private void bindButton(PreferenceCategory parent, String setting, String def) {
133        String k = parent.getKey();
134        DropDownPreference type = (DropDownPreference) findPreference(TYPE + "_" + k);
135        Preference keycode = findPreference(KEYCODE + "_" + k);
136        ListPreference icon = (ListPreference) findPreference(ICON + "_" + k);
137        setupIcons(icon);
138        addTunable((key, newValue) -> mHandler.post(() -> {
139            String val = newValue;
140            if (val == null) {
141                val = def;
142            }
143            String button = extractButton(val);
144            if (button.startsWith(KEY)) {
145                type.setValue(KEY);
146                String uri = extractImage(button);
147                int code = extractKeycode(button);
148                icon.setValue(uri);
149                updateSummary(icon);
150                keycode.setSummary(code + "");
151                keycode.setVisible(true);
152                icon.setVisible(true);
153            } else {
154                type.setValue(button);
155                keycode.setVisible(false);
156                icon.setVisible(false);
157            }
158        }), setting);
159        OnPreferenceChangeListener listener = (preference, newValue) -> {
160            mHandler.post(() -> {
161                setValue(setting, type, keycode, icon);
162                updateSummary(icon);
163            });
164            return true;
165        };
166        type.setOnPreferenceChangeListener(listener);
167        icon.setOnPreferenceChangeListener(listener);
168        keycode.setOnPreferenceClickListener(preference -> {
169            EditText editText = new EditText(getContext());
170            new AlertDialog.Builder(getContext())
171                    .setTitle(preference.getTitle())
172                    .setView(editText)
173                    .setNegativeButton(android.R.string.cancel, null)
174                    .setPositiveButton(android.R.string.ok, (dialog, which) -> {
175                        int code = KeyEvent.KEYCODE_ENTER;
176                        try {
177                            code = Integer.parseInt(editText.getText().toString());
178                        } catch (Exception e) {
179                        }
180                        keycode.setSummary(code + "");
181                        setValue(setting, type, keycode, icon);
182                    }).show();
183            return true;
184        });
185    }
186
187    private void updateSummary(ListPreference icon) {
188        try {
189            int size = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 14,
190                    getContext().getResources().getDisplayMetrics());
191            String pkg = icon.getValue().split("/")[0];
192            int id = Integer.parseInt(icon.getValue().split("/")[1]);
193            SpannableStringBuilder builder = new SpannableStringBuilder();
194            Drawable d = Icon.createWithResource(pkg, id)
195                    .loadDrawable(getContext());
196            d.setTint(Color.BLACK);
197            d.setBounds(0, 0, size, size);
198            ImageSpan span = new ImageSpan(d);
199            builder.append("  ", span, 0);
200            icon.setSummary(builder);
201        } catch (Exception e) {
202            Log.d("NavButton", "Problem with summary", e);
203            icon.setSummary(null);
204        }
205    }
206
207    private void setValue(String setting, DropDownPreference type, Preference keycode,
208            ListPreference icon) {
209        String button = type.getValue();
210        if (KEY.equals(button)) {
211            String uri = icon.getValue();
212            int code = KeyEvent.KEYCODE_ENTER;
213            try {
214                code = Integer.parseInt(keycode.getSummary().toString());
215            } catch (Exception e) {
216            }
217            button = button + KEY_CODE_START + code + KEY_IMAGE_DELIM + uri + KEY_CODE_END;
218        }
219        Dependency.get(TunerService.class).setValue(setting, button);
220    }
221
222    private void setupIcons(ListPreference icon) {
223        CharSequence[] labels = new CharSequence[ICONS.length];
224        CharSequence[] values = new CharSequence[ICONS.length];
225        int size = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 14,
226                getContext().getResources().getDisplayMetrics());
227        for (int i = 0; i < ICONS.length; i++) {
228            SpannableStringBuilder builder = new SpannableStringBuilder();
229            Drawable d = Icon.createWithResource(getContext().getPackageName(), ICONS[i])
230                    .loadDrawable(getContext());
231            d.setTint(Color.BLACK);
232            d.setBounds(0, 0, size, size);
233            ImageSpan span = new ImageSpan(d);
234            builder.append("  ", span, 0);
235            labels[i] = builder;
236            values[i] = getContext().getPackageName() + "/" + ICONS[i];
237        }
238        icon.setEntries(labels);
239        icon.setEntryValues(values);
240    }
241}
242