mobile/android/base/background/preferences/PreferenceManagerCompat.java

Wed, 31 Dec 2014 07:22:50 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 07:22:50 +0100
branch
TOR_BUG_3246
changeset 4
fc2d59ddac77
permissions
-rw-r--r--

Correct previous dual key logic pending first delivery installment.

michael@0 1 /*
michael@0 2 * Copyright (C) 2013 The Android Open Source Project
michael@0 3 *
michael@0 4 * Licensed under the Apache License, Version 2.0 (the "License");
michael@0 5 * you may not use this file except in compliance with the License.
michael@0 6 * You may obtain a copy of the License at
michael@0 7 *
michael@0 8 * http://www.apache.org/licenses/LICENSE-2.0
michael@0 9 *
michael@0 10 * Unless required by applicable law or agreed to in writing, software
michael@0 11 * distributed under the License is distributed on an "AS IS" BASIS,
michael@0 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
michael@0 13 * See the License for the specific language governing permissions and
michael@0 14 * limitations under the License.
michael@0 15 */
michael@0 16
michael@0 17 package org.mozilla.gecko.background.preferences;
michael@0 18
michael@0 19 import java.lang.reflect.Constructor;
michael@0 20 import java.lang.reflect.Field;
michael@0 21 import java.lang.reflect.InvocationHandler;
michael@0 22 import java.lang.reflect.Method;
michael@0 23 import java.lang.reflect.Proxy;
michael@0 24
michael@0 25 import android.app.Activity;
michael@0 26 import android.content.Context;
michael@0 27 import android.content.Intent;
michael@0 28 import android.preference.Preference;
michael@0 29 import android.preference.PreferenceManager;
michael@0 30 import android.preference.PreferenceScreen;
michael@0 31 import android.util.Log;
michael@0 32
michael@0 33 public class PreferenceManagerCompat {
michael@0 34
michael@0 35 private static final String TAG = PreferenceManagerCompat.class.getSimpleName();
michael@0 36
michael@0 37 /**
michael@0 38 * Interface definition for a callback to be invoked when a
michael@0 39 * {@link Preference} in the hierarchy rooted at this {@link PreferenceScreen} is
michael@0 40 * clicked.
michael@0 41 */
michael@0 42 interface OnPreferenceTreeClickListener {
michael@0 43 /**
michael@0 44 * Called when a preference in the tree rooted at this
michael@0 45 * {@link PreferenceScreen} has been clicked.
michael@0 46 *
michael@0 47 * @param preferenceScreen The {@link PreferenceScreen} that the
michael@0 48 * preference is located in.
michael@0 49 * @param preference The preference that was clicked.
michael@0 50 * @return Whether the click was handled.
michael@0 51 */
michael@0 52 boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference);
michael@0 53 }
michael@0 54
michael@0 55 static PreferenceManager newInstance(Activity activity, int firstRequestCode) {
michael@0 56 try {
michael@0 57 Constructor<PreferenceManager> c = PreferenceManager.class.getDeclaredConstructor(Activity.class, int.class);
michael@0 58 c.setAccessible(true);
michael@0 59 return c.newInstance(activity, firstRequestCode);
michael@0 60 } catch (Exception e) {
michael@0 61 Log.w(TAG, "Couldn't call constructor PreferenceManager by reflection", e);
michael@0 62 }
michael@0 63 return null;
michael@0 64 }
michael@0 65
michael@0 66 /**
michael@0 67 * Sets the owning preference fragment
michael@0 68 */
michael@0 69 static void setFragment(PreferenceManager manager, PreferenceFragment fragment) {
michael@0 70 // stub
michael@0 71 }
michael@0 72
michael@0 73 /**
michael@0 74 * Sets the callback to be invoked when a {@link Preference} in the
michael@0 75 * hierarchy rooted at this {@link PreferenceManager} is clicked.
michael@0 76 *
michael@0 77 * @param listener The callback to be invoked.
michael@0 78 */
michael@0 79 static void setOnPreferenceTreeClickListener(PreferenceManager manager, final OnPreferenceTreeClickListener listener) {
michael@0 80 try {
michael@0 81 Field onPreferenceTreeClickListener = PreferenceManager.class.getDeclaredField("mOnPreferenceTreeClickListener");
michael@0 82 onPreferenceTreeClickListener.setAccessible(true);
michael@0 83 if (listener != null) {
michael@0 84 Object proxy = Proxy.newProxyInstance(
michael@0 85 onPreferenceTreeClickListener.getType().getClassLoader(),
michael@0 86 new Class<?>[] { onPreferenceTreeClickListener.getType() },
michael@0 87 new InvocationHandler() {
michael@0 88 @Override
michael@0 89 public Object invoke(Object proxy, Method method, Object[] args) {
michael@0 90 if (method.getName().equals("onPreferenceTreeClick")) {
michael@0 91 return Boolean.valueOf(listener.onPreferenceTreeClick((PreferenceScreen) args[0], (Preference) args[1]));
michael@0 92 } else {
michael@0 93 return null;
michael@0 94 }
michael@0 95 }
michael@0 96 });
michael@0 97 onPreferenceTreeClickListener.set(manager, proxy);
michael@0 98 } else {
michael@0 99 onPreferenceTreeClickListener.set(manager, null);
michael@0 100 }
michael@0 101 } catch (Exception e) {
michael@0 102 Log.w(TAG, "Couldn't set PreferenceManager.mOnPreferenceTreeClickListener by reflection", e);
michael@0 103 }
michael@0 104 }
michael@0 105
michael@0 106 /**
michael@0 107 * Inflates a preference hierarchy from the preference hierarchies of
michael@0 108 * {@link Activity Activities} that match the given {@link Intent}. An
michael@0 109 * {@link Activity} defines its preference hierarchy with meta-data using
michael@0 110 * the {@link #METADATA_KEY_PREFERENCES} key.
michael@0 111 * <p>
michael@0 112 * If a preference hierarchy is given, the new preference hierarchies will
michael@0 113 * be merged in.
michael@0 114 *
michael@0 115 * @param queryIntent The intent to match activities.
michael@0 116 * @param rootPreferences Optional existing hierarchy to merge the new
michael@0 117 * hierarchies into.
michael@0 118 * @return The root hierarchy (if one was not provided, the new hierarchy's
michael@0 119 * root).
michael@0 120 */
michael@0 121 static PreferenceScreen inflateFromIntent(PreferenceManager manager, Intent intent, PreferenceScreen screen) {
michael@0 122 try {
michael@0 123 Method m = PreferenceManager.class.getDeclaredMethod("inflateFromIntent", Intent.class, PreferenceScreen.class);
michael@0 124 m.setAccessible(true);
michael@0 125 PreferenceScreen prefScreen = (PreferenceScreen) m.invoke(manager, intent, screen);
michael@0 126 return prefScreen;
michael@0 127 } catch (Exception e) {
michael@0 128 Log.w(TAG, "Couldn't call PreferenceManager.inflateFromIntent by reflection", e);
michael@0 129 }
michael@0 130 return null;
michael@0 131 }
michael@0 132
michael@0 133 /**
michael@0 134 * Inflates a preference hierarchy from XML. If a preference hierarchy is
michael@0 135 * given, the new preference hierarchies will be merged in.
michael@0 136 *
michael@0 137 * @param context The context of the resource.
michael@0 138 * @param resId The resource ID of the XML to inflate.
michael@0 139 * @param rootPreferences Optional existing hierarchy to merge the new
michael@0 140 * hierarchies into.
michael@0 141 * @return The root hierarchy (if one was not provided, the new hierarchy's
michael@0 142 * root).
michael@0 143 * @hide
michael@0 144 */
michael@0 145 static PreferenceScreen inflateFromResource(PreferenceManager manager, Activity activity, int resId, PreferenceScreen screen) {
michael@0 146 try {
michael@0 147 Method m = PreferenceManager.class.getDeclaredMethod("inflateFromResource", Context.class, int.class, PreferenceScreen.class);
michael@0 148 m.setAccessible(true);
michael@0 149 PreferenceScreen prefScreen = (PreferenceScreen) m.invoke(manager, activity, resId, screen);
michael@0 150 return prefScreen;
michael@0 151 } catch (Exception e) {
michael@0 152 Log.w(TAG, "Couldn't call PreferenceManager.inflateFromResource by reflection", e);
michael@0 153 }
michael@0 154 return null;
michael@0 155 }
michael@0 156
michael@0 157 /**
michael@0 158 * Returns the root of the preference hierarchy managed by this class.
michael@0 159 *
michael@0 160 * @return The {@link PreferenceScreen} object that is at the root of the hierarchy.
michael@0 161 */
michael@0 162 static PreferenceScreen getPreferenceScreen(PreferenceManager manager) {
michael@0 163 try {
michael@0 164 Method m = PreferenceManager.class.getDeclaredMethod("getPreferenceScreen");
michael@0 165 m.setAccessible(true);
michael@0 166 return (PreferenceScreen) m.invoke(manager);
michael@0 167 } catch (Exception e) {
michael@0 168 Log.w(TAG, "Couldn't call PreferenceManager.getPreferenceScreen by reflection", e);
michael@0 169 }
michael@0 170 return null;
michael@0 171 }
michael@0 172
michael@0 173 /**
michael@0 174 * Called by the {@link PreferenceManager} to dispatch a subactivity result.
michael@0 175 */
michael@0 176 static void dispatchActivityResult(PreferenceManager manager, int requestCode, int resultCode, Intent data) {
michael@0 177 try {
michael@0 178 Method m = PreferenceManager.class.getDeclaredMethod("dispatchActivityResult", int.class, int.class, Intent.class);
michael@0 179 m.setAccessible(true);
michael@0 180 m.invoke(manager, requestCode, resultCode, data);
michael@0 181 } catch (Exception e) {
michael@0 182 Log.w(TAG, "Couldn't call PreferenceManager.dispatchActivityResult by reflection", e);
michael@0 183 }
michael@0 184 }
michael@0 185
michael@0 186 /**
michael@0 187 * Called by the {@link PreferenceManager} to dispatch the activity stop
michael@0 188 * event.
michael@0 189 */
michael@0 190 static void dispatchActivityStop(PreferenceManager manager) {
michael@0 191 try {
michael@0 192 Method m = PreferenceManager.class.getDeclaredMethod("dispatchActivityStop");
michael@0 193 m.setAccessible(true);
michael@0 194 m.invoke(manager);
michael@0 195 } catch (Exception e) {
michael@0 196 Log.w(TAG, "Couldn't call PreferenceManager.dispatchActivityStop by reflection", e);
michael@0 197 }
michael@0 198 }
michael@0 199
michael@0 200 /**
michael@0 201 * Called by the {@link PreferenceManager} to dispatch the activity destroy
michael@0 202 * event.
michael@0 203 */
michael@0 204 static void dispatchActivityDestroy(PreferenceManager manager) {
michael@0 205 try {
michael@0 206 Method m = PreferenceManager.class.getDeclaredMethod("dispatchActivityDestroy");
michael@0 207 m.setAccessible(true);
michael@0 208 m.invoke(manager);
michael@0 209 } catch (Exception e) {
michael@0 210 Log.w(TAG, "Couldn't call PreferenceManager.dispatchActivityDestroy by reflection", e);
michael@0 211 }
michael@0 212 }
michael@0 213
michael@0 214 /**
michael@0 215 * Sets the root of the preference hierarchy.
michael@0 216 *
michael@0 217 * @param preferenceScreen The root {@link PreferenceScreen} of the preference hierarchy.
michael@0 218 * @return Whether the {@link PreferenceScreen} given is different than the previous.
michael@0 219 */
michael@0 220 static boolean setPreferences(PreferenceManager manager, PreferenceScreen screen) {
michael@0 221 try {
michael@0 222 Method m = PreferenceManager.class.getDeclaredMethod("setPreferences", PreferenceScreen.class);
michael@0 223 m.setAccessible(true);
michael@0 224 return ((Boolean) m.invoke(manager, screen));
michael@0 225 } catch (Exception e) {
michael@0 226 Log.w(TAG, "Couldn't call PreferenceManager.setPreferences by reflection", e);
michael@0 227 }
michael@0 228 return false;
michael@0 229 }
michael@0 230
michael@0 231 }

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