| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.settings.gestures; |
| |
| import android.content.Context; |
| |
| import androidx.preference.Preference; |
| import androidx.preference.PreferenceScreen; |
| |
| import com.android.settings.R; |
| import com.android.settings.core.TogglePreferenceController; |
| import com.android.settings.widget.VideoPreference; |
| import com.android.settingslib.core.lifecycle.LifecycleObserver; |
| import com.android.settingslib.core.lifecycle.events.OnStart; |
| import com.android.settingslib.core.lifecycle.events.OnStop; |
| |
| public abstract class GesturePreferenceController extends TogglePreferenceController |
| implements Preference.OnPreferenceChangeListener, |
| LifecycleObserver, OnStart, OnStop { |
| |
| private VideoPreference mVideoPreference; |
| |
| public GesturePreferenceController(Context context, String key) { |
| super(context, key); |
| } |
| |
| @Override |
| public void displayPreference(PreferenceScreen screen) { |
| super.displayPreference(screen); |
| if (isAvailable()) { |
| mVideoPreference = screen.findPreference(getVideoPrefKey()); |
| } |
| } |
| |
| @Override |
| public void updateState(Preference preference) { |
| super.updateState(preference); |
| if (preference != null) { |
| // Different meanings of "Enabled" for the Preference and Controller. |
| preference.setEnabled(canHandleClicks()); |
| } |
| } |
| |
| @Override |
| public CharSequence getSummary() { |
| return mContext.getText( |
| isChecked() ? R.string.gesture_setting_on : R.string.gesture_setting_off); |
| } |
| |
| @Override |
| public void onStart() { |
| if (mVideoPreference != null) { |
| mVideoPreference.onViewVisible(); |
| } |
| } |
| |
| @Override |
| public void onStop() { |
| if (mVideoPreference != null) { |
| mVideoPreference.onViewInvisible(); |
| } |
| } |
| |
| protected abstract String getVideoPrefKey(); |
| |
| protected boolean canHandleClicks() { |
| return true; |
| } |
| } |