| /* |
| * Copyright (C) 2019 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.quickstep; |
| |
| import static android.content.Intent.ACTION_PACKAGE_ADDED; |
| import static android.content.Intent.ACTION_PACKAGE_CHANGED; |
| import static android.content.Intent.ACTION_PACKAGE_REMOVED; |
| |
| import static com.android.launcher3.util.PackageManagerHelper.getPackageFilter; |
| import static com.android.systemui.shared.system.PackageManagerWrapper.ACTION_PREFERRED_ACTIVITY_CHANGED; |
| import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_HOME_DISABLED; |
| |
| import android.content.BroadcastReceiver; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.pm.ActivityInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.ResolveInfo; |
| import android.util.SparseIntArray; |
| |
| import com.android.systemui.shared.system.PackageManagerWrapper; |
| |
| import java.util.ArrayList; |
| import java.util.Objects; |
| |
| /** |
| * Class to keep track of the current overview component based off user preferences and app updates |
| * and provide callers the relevant classes. |
| */ |
| public final class OverviewComponentObserver { |
| private final BroadcastReceiver mUserPreferenceChangeReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| updateOverviewTargets(); |
| } |
| }; |
| private final BroadcastReceiver mOtherHomeAppUpdateReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| updateOverviewTargets(); |
| } |
| }; |
| private final Context mContext; |
| private final Intent mCurrentHomeIntent; |
| private final Intent mMyHomeIntent; |
| private final Intent mFallbackIntent; |
| private final SparseIntArray mConfigChangesMap = new SparseIntArray(); |
| private String mUpdateRegisteredPackage; |
| private ActivityControlHelper mActivityControlHelper; |
| private Intent mOverviewIntent; |
| private int mSystemUiStateFlags; |
| private boolean mIsHomeAndOverviewSame; |
| private boolean mIsDefaultHome; |
| |
| public OverviewComponentObserver(Context context) { |
| mContext = context; |
| |
| mCurrentHomeIntent = new Intent(Intent.ACTION_MAIN) |
| .addCategory(Intent.CATEGORY_HOME) |
| .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); |
| mMyHomeIntent = new Intent(mCurrentHomeIntent).setPackage(mContext.getPackageName()); |
| ResolveInfo info = context.getPackageManager().resolveActivity(mMyHomeIntent, 0); |
| ComponentName myHomeComponent = |
| new ComponentName(context.getPackageName(), info.activityInfo.name); |
| mMyHomeIntent.setComponent(myHomeComponent); |
| mConfigChangesMap.append(myHomeComponent.hashCode(), info.activityInfo.configChanges); |
| |
| ComponentName fallbackComponent = new ComponentName(mContext, RecentsActivity.class); |
| mFallbackIntent = new Intent(Intent.ACTION_MAIN) |
| .addCategory(Intent.CATEGORY_DEFAULT) |
| .setComponent(fallbackComponent) |
| .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); |
| |
| try { |
| ActivityInfo fallbackInfo = context.getPackageManager().getActivityInfo( |
| mFallbackIntent.getComponent(), 0 /* flags */); |
| mConfigChangesMap.append(fallbackComponent.hashCode(), fallbackInfo.configChanges); |
| } catch (PackageManager.NameNotFoundException ignored) { /* Impossible */ } |
| |
| mContext.registerReceiver(mUserPreferenceChangeReceiver, |
| new IntentFilter(ACTION_PREFERRED_ACTIVITY_CHANGED)); |
| updateOverviewTargets(); |
| } |
| |
| public void onSystemUiStateChanged(int stateFlags) { |
| boolean homeDisabledChanged = (mSystemUiStateFlags & SYSUI_STATE_HOME_DISABLED) |
| != (stateFlags & SYSUI_STATE_HOME_DISABLED); |
| mSystemUiStateFlags = stateFlags; |
| if (homeDisabledChanged) { |
| updateOverviewTargets(); |
| } |
| } |
| |
| /** |
| * Update overview intent and {@link ActivityControlHelper} based off the current launcher home |
| * component. |
| */ |
| private void updateOverviewTargets() { |
| ComponentName defaultHome = PackageManagerWrapper.getInstance() |
| .getHomeActivities(new ArrayList<>()); |
| |
| mIsDefaultHome = Objects.equals(mMyHomeIntent.getComponent(), defaultHome); |
| if ((mSystemUiStateFlags & SYSUI_STATE_HOME_DISABLED) == 0 |
| && (defaultHome == null || mIsDefaultHome)) { |
| // User default home is same as out home app. Use Overview integrated in Launcher. |
| mActivityControlHelper = new LauncherActivityControllerHelper(); |
| mIsHomeAndOverviewSame = true; |
| mOverviewIntent = mMyHomeIntent; |
| mCurrentHomeIntent.setComponent(mMyHomeIntent.getComponent()); |
| |
| if (mUpdateRegisteredPackage != null) { |
| // Remove any update listener as we don't care about other packages. |
| mContext.unregisterReceiver(mOtherHomeAppUpdateReceiver); |
| mUpdateRegisteredPackage = null; |
| } |
| } else { |
| // The default home app is a different launcher. Use the fallback Overview instead. |
| mActivityControlHelper = new FallbackActivityControllerHelper(); |
| mIsHomeAndOverviewSame = false; |
| mOverviewIntent = mFallbackIntent; |
| mCurrentHomeIntent.setComponent(defaultHome); |
| |
| // User's default home app can change as a result of package updates of this app (such |
| // as uninstalling the app or removing the "Launcher" feature in an update). |
| // Listen for package updates of this app (and remove any previously attached |
| // package listener). |
| if (defaultHome == null) { |
| if (mUpdateRegisteredPackage != null) { |
| mContext.unregisterReceiver(mOtherHomeAppUpdateReceiver); |
| } |
| } else if (!defaultHome.getPackageName().equals(mUpdateRegisteredPackage)) { |
| if (mUpdateRegisteredPackage != null) { |
| mContext.unregisterReceiver(mOtherHomeAppUpdateReceiver); |
| } |
| |
| mUpdateRegisteredPackage = defaultHome.getPackageName(); |
| mContext.registerReceiver(mOtherHomeAppUpdateReceiver, getPackageFilter( |
| mUpdateRegisteredPackage, ACTION_PACKAGE_ADDED, ACTION_PACKAGE_CHANGED, |
| ACTION_PACKAGE_REMOVED)); |
| } |
| } |
| } |
| |
| /** |
| * Clean up any registered receivers. |
| */ |
| public void onDestroy() { |
| mContext.unregisterReceiver(mUserPreferenceChangeReceiver); |
| |
| if (mUpdateRegisteredPackage != null) { |
| mContext.unregisterReceiver(mOtherHomeAppUpdateReceiver); |
| mUpdateRegisteredPackage = null; |
| } |
| } |
| |
| /** |
| * @return {@code true} if the overview component is able to handle the configuration changes. |
| */ |
| boolean canHandleConfigChanges(ComponentName component, int changes) { |
| final int orientationChange = |
| ActivityInfo.CONFIG_ORIENTATION | ActivityInfo.CONFIG_SCREEN_SIZE; |
| if ((changes & orientationChange) == orientationChange) { |
| // This is just an approximate guess for simple orientation change because the changes |
| // may contain non-public bits (e.g. window configuration). |
| return true; |
| } |
| |
| int configMask = mConfigChangesMap.get(component.hashCode()); |
| return configMask != 0 && (~configMask & changes) == 0; |
| } |
| |
| /** |
| * Get the intent for overview activity. It is used when lockscreen is shown and home was died |
| * in background, we still want to restart the one that will be used after unlock. |
| * |
| * @return the overview intent |
| */ |
| Intent getOverviewIntentIgnoreSysUiState() { |
| return mIsDefaultHome ? mMyHomeIntent : mOverviewIntent; |
| } |
| |
| /** |
| * Get the current intent for going to the overview activity. |
| * |
| * @return the overview intent |
| */ |
| public Intent getOverviewIntent() { |
| return mOverviewIntent; |
| } |
| |
| /** |
| * Get the current intent for going to the home activity. |
| */ |
| public Intent getHomeIntent() { |
| return mCurrentHomeIntent; |
| } |
| |
| /** |
| * Returns true if home and overview are same activity. |
| */ |
| public boolean isHomeAndOverviewSame() { |
| return mIsHomeAndOverviewSame; |
| } |
| |
| /** |
| * Get the current activity control helper for managing interactions to the overview activity. |
| * |
| * @return the current activity control helper |
| */ |
| public ActivityControlHelper getActivityControlHelper() { |
| return mActivityControlHelper; |
| } |
| } |