| /* |
| * Copyright (C) 2017 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.systemui.tuner; |
| |
| import android.util.DisplayMetrics; |
| import android.view.View; |
| import android.view.WindowManager; |
| |
| import com.android.systemui.Dependency; |
| import com.android.systemui.tuner.TunerService.Tunable; |
| |
| /** |
| * Version of Space that can be resized by a tunable setting. |
| */ |
| public class TunablePadding implements Tunable { |
| |
| public static final int FLAG_START = 1; |
| public static final int FLAG_END = 2; |
| public static final int FLAG_TOP = 4; |
| public static final int FLAG_BOTTOM = 8; |
| |
| private final int mFlags; |
| private final View mView; |
| private final int mDefaultSize; |
| private final float mDensity; |
| |
| private TunablePadding(String key, int def, int flags, View view) { |
| mDefaultSize = def; |
| mFlags = flags; |
| mView = view; |
| DisplayMetrics metrics = new DisplayMetrics(); |
| view.getContext().getSystemService(WindowManager.class) |
| .getDefaultDisplay().getMetrics(metrics); |
| mDensity = metrics.density; |
| Dependency.get(TunerService.class).addTunable(this, key); |
| } |
| |
| @Override |
| public void onTuningChanged(String key, String newValue) { |
| int dimen = mDefaultSize; |
| if (newValue != null) { |
| dimen = (int) (Integer.parseInt(newValue) * mDensity); |
| } |
| int left = mView.isLayoutRtl() ? FLAG_END : FLAG_START; |
| int right = mView.isLayoutRtl() ? FLAG_START : FLAG_END; |
| mView.setPadding(getPadding(dimen, left), getPadding(dimen, FLAG_TOP), |
| getPadding(dimen, right), getPadding(dimen, FLAG_BOTTOM)); |
| } |
| |
| private int getPadding(int dimen, int flag) { |
| return ((mFlags & flag) != 0) ? dimen : 0; |
| } |
| |
| public void destroy() { |
| Dependency.get(TunerService.class).removeTunable(this); |
| } |
| |
| // Exists for easy injecting in tests. |
| public static class TunablePaddingService { |
| public TunablePadding add(View view, String key, int defaultSize, int flags) { |
| if (view == null) { |
| throw new IllegalArgumentException(); |
| } |
| return new TunablePadding(key, defaultSize, flags, view); |
| } |
| } |
| |
| public static TunablePadding addTunablePadding(View view, String key, int defaultSize, |
| int flags) { |
| return Dependency.get(TunablePaddingService.class).add(view, key, defaultSize, flags); |
| } |
| } |