/*
|
* 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.util;
|
|
import android.Manifest;
|
import android.content.Intent;
|
import android.content.pm.PackageManager;
|
import android.view.View;
|
|
import com.android.systemui.SysUiServiceProvider;
|
import com.android.systemui.statusbar.CommandQueue;
|
|
import java.util.List;
|
import java.util.function.Consumer;
|
|
public class Utils {
|
|
public static boolean mRadioAvailable = false;
|
|
/**
|
* Allows lambda iteration over a list. It is done in reverse order so it is safe
|
* to add or remove items during the iteration. Skips over null items.
|
*/
|
public static <T> void safeForeach(List<T> list, Consumer<T> c) {
|
for (int i = list.size() - 1; i >= 0; i--) {
|
T item = list.get(i);
|
if (item != null) {
|
c.accept(item);
|
}
|
}
|
}
|
|
/**
|
* Sets the visibility of an UI element according to the DISABLE_* flags in
|
* {@link android.app.StatusBarManager}.
|
*/
|
public static class DisableStateTracker implements CommandQueue.Callbacks,
|
View.OnAttachStateChangeListener {
|
private final int mMask1;
|
private final int mMask2;
|
private View mView;
|
private boolean mDisabled;
|
|
public DisableStateTracker(int disableMask, int disable2Mask) {
|
mMask1 = disableMask;
|
mMask2 = disable2Mask;
|
}
|
|
@Override
|
public void onViewAttachedToWindow(View v) {
|
mView = v;
|
SysUiServiceProvider.getComponent(v.getContext(), CommandQueue.class)
|
.addCallback(this);
|
}
|
|
@Override
|
public void onViewDetachedFromWindow(View v) {
|
SysUiServiceProvider.getComponent(mView.getContext(), CommandQueue.class)
|
.removeCallback(this);
|
mView = null;
|
}
|
|
/**
|
* Sets visibility of this {@link View} given the states passed from
|
* {@link com.android.systemui.statusbar.CommandQueue.Callbacks#disable(int, int, int)}.
|
*/
|
@Override
|
public void disable(int displayId, int state1, int state2, boolean animate) {
|
if (displayId != mView.getDisplay().getDisplayId()) {
|
return;
|
}
|
final boolean disabled = ((state1 & mMask1) != 0) || ((state2 & mMask2) != 0);
|
if (disabled == mDisabled) return;
|
mDisabled = disabled;
|
mView.setVisibility(disabled ? View.GONE : View.VISIBLE);
|
}
|
|
/** @return {@code true} if and only if this {@link View} is currently disabled */
|
public boolean isDisabled() {
|
return mDisabled;
|
}
|
}
|
|
|
/**
|
* Returns {@code true} iff the package {@code packageName} is a headless remote display
|
* provider, i.e, that the package holds the privileged {@code REMOTE_DISPLAY_PROVIDER}
|
* permission and that it doesn't host a launcher icon.
|
*/
|
public static boolean isHeadlessRemoteDisplayProvider(PackageManager pm, String packageName) {
|
if (pm.checkPermission(Manifest.permission.REMOTE_DISPLAY_PROVIDER, packageName)
|
!= PackageManager.PERMISSION_GRANTED) {
|
return false;
|
}
|
|
Intent homeIntent = new Intent(Intent.ACTION_MAIN);
|
homeIntent.addCategory(Intent.CATEGORY_LAUNCHER);
|
homeIntent.setPackage(packageName);
|
|
return pm.queryIntentActivities(homeIntent, 0).isEmpty();
|
}
|
|
}
|
