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/*
* 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 static android.view.Display.DEFAULT_DISPLAY;
import android.Manifest;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.provider.Settings;
import android.view.ContextThemeWrapper;
import android.view.DisplayCutout;
import android.view.View;
import com.android.internal.policy.SystemBarUtils;
import com.android.systemui.R;
import com.android.systemui.shared.system.QuickStepContract;
import com.android.systemui.statusbar.CommandQueue;
import java.util.List;
import java.util.function.Consumer;
public class Utils {
/**
* 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 final CommandQueue mCommandQueue;
private View mView;
private boolean mDisabled;
public DisableStateTracker(int disableMask, int disable2Mask, CommandQueue commandQueue) {
mMask1 = disableMask;
mMask2 = disable2Mask;
mCommandQueue = commandQueue;
}
@Override
public void onViewAttachedToWindow(View v) {
mView = v;
mCommandQueue.addCallback(this);
}
@Override
public void onViewDetachedFromWindow(View v) {
mCommandQueue.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();
}
/**
* Returns {@code true} if the navMode is that of
* {@link android.view.WindowManagerPolicyConstants#NAV_BAR_MODE_GESTURAL} AND
* the context is that of the default display
*/
public static boolean isGesturalModeOnDefaultDisplay(Context context, int navMode) {
return context.getDisplayId() == DEFAULT_DISPLAY
&& QuickStepContract.isGesturalMode(navMode);
}
/**
* Allow the media player to be shown in the QS area, controlled by 2 flags.
* Off by default, but can be disabled by setting to 0
*/
public static boolean useQsMediaPlayer(Context context) {
int flag = Settings.Global.getInt(context.getContentResolver(),
Settings.Global.SHOW_MEDIA_ON_QUICK_SETTINGS, 1);
return flag > 0;
}
/**
* Allow media resumption controls. Requires {@link #useQsMediaPlayer(Context)} to be enabled.
* On by default, but can be disabled by setting to 0
*/
public static boolean useMediaResumption(Context context) {
int flag = Settings.Secure.getInt(context.getContentResolver(),
Settings.Secure.MEDIA_CONTROLS_RESUME, 1);
return useQsMediaPlayer(context) && flag > 0;
}
/**
* Allow recommendations from smartspace to show in media controls.
* Requires {@link #useQsMediaPlayer(Context)} to be enabled.
* On by default, but can be disabled by setting to 0
*/
public static boolean allowMediaRecommendations(Context context) {
int flag = Settings.Secure.getInt(context.getContentResolver(),
Settings.Secure.MEDIA_CONTROLS_RECOMMENDATION, 1);
return useQsMediaPlayer(context) && flag > 0;
}
/**
* Returns true if the device should use the split notification shade, based on orientation and
* screen width.
*/
public static boolean shouldUseSplitNotificationShade(Resources resources) {
return resources.getBoolean(R.bool.config_use_split_notification_shade);
}
/**
* Returns the color provided at the specified {@param attrIndex} in {@param a} if it exists,
* otherwise, returns the color from the private attribute {@param privAttrId}.
*/
public static int getPrivateAttrColorIfUnset(ContextThemeWrapper ctw, TypedArray a,
int attrIndex, int defColor, int privAttrId) {
// If the index is specified, use that value
if (a.hasValue(attrIndex)) {
return a.getColor(attrIndex, defColor);
}
// Otherwise fallback to the value of the private attribute
int[] customAttrs = { privAttrId };
a = ctw.obtainStyledAttributes(customAttrs);
int color = a.getColor(0, defColor);
a.recycle();
return color;
}
/**
* Gets the {@link R.dimen#split_shade_header_height}.
*
* Currently, it's the same as {@link com.android.internal.R.dimen#quick_qs_offset_height}.
*/
public static int getSplitShadeStatusBarHeight(Context context) {
return SystemBarUtils.getQuickQsOffsetHeight(context);
}
/**
* Gets the {@link R.dimen#qs_header_system_icons_area_height}.
*
* It's the same as {@link com.android.internal.R.dimen#quick_qs_offset_height} except for
* sw600dp-land.
*/
public static int getQsHeaderSystemIconsAreaHeight(Context context) {
final Resources res = context.getResources();
if (Utils.shouldUseSplitNotificationShade(res)) {
return res.getDimensionPixelSize(R.dimen.qs_header_system_icons_area_height);
} else {
return SystemBarUtils.getQuickQsOffsetHeight(context);
}
}
/**
* Gets the {@link R.dimen#status_bar_header_height_keyguard}.
*/
public static int getStatusBarHeaderHeightKeyguard(Context context) {
final int statusBarHeight = SystemBarUtils.getStatusBarHeight(context);
final DisplayCutout cutout = context.getDisplay().getCutout();
final int waterfallInsetTop = cutout == null ? 0 : cutout.getWaterfallInsets().top;
final int statusBarHeaderHeightKeyguard = context.getResources()
.getDimensionPixelSize(R.dimen.status_bar_header_height_keyguard);
return Math.max(statusBarHeight, statusBarHeaderHeightKeyguard + waterfallInsetTop);
}
}
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