/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.systemui;
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import android.content.Context;
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import android.content.Intent;
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import android.content.pm.ActivityInfo;
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import android.content.pm.PackageManager;
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import android.content.pm.ResolveInfo;
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import java.util.List;
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/**
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* Contains useful methods for querying properties of an Activity Intent.
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*/
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public class ActivityIntentHelper {
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private final Context mContext;
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public ActivityIntentHelper(Context context) {
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mContext = context;
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}
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/**
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* Determines if sending the given intent would result in starting an Intent resolver activity,
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* instead of resolving to a specific component.
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*
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* @param intent the intent
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* @param currentUserId the id for the user to resolve as
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* @return true if the intent would launch a resolver activity
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*/
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public boolean wouldLaunchResolverActivity(Intent intent, int currentUserId) {
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ActivityInfo targetActivityInfo = getTargetActivityInfo(intent, currentUserId,
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false /* onlyDirectBootAware */);
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return targetActivityInfo == null;
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}
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/**
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* Returns info about the target Activity of a given intent, or null if the intent does not
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* resolve to a specific component meeting the requirements.
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*
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* @param onlyDirectBootAware a boolean indicating whether the matched activity packages must
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* be direct boot aware when in direct boot mode if false, all packages are considered
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* a match even if they are not aware.
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* @return the target activity info of the intent it resolves to a specific package or
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* {@code null} if it resolved to the resolver activity
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*/
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public ActivityInfo getTargetActivityInfo(Intent intent, int currentUserId,
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boolean onlyDirectBootAware) {
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PackageManager packageManager = mContext.getPackageManager();
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int flags = PackageManager.MATCH_DEFAULT_ONLY;
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if (!onlyDirectBootAware) {
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flags |= PackageManager.MATCH_DIRECT_BOOT_AWARE
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| PackageManager.MATCH_DIRECT_BOOT_UNAWARE;
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}
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final List<ResolveInfo> appList = packageManager.queryIntentActivitiesAsUser(
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intent, flags, currentUserId);
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if (appList.size() == 0) {
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return null;
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}
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ResolveInfo resolved = packageManager.resolveActivityAsUser(intent,
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flags | PackageManager.GET_META_DATA, currentUserId);
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if (resolved == null || wouldLaunchResolverActivity(resolved, appList)) {
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return null;
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} else {
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return resolved.activityInfo;
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}
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}
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/**
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* Determines if the given intent resolves to an Activity which is allowed to appear above
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* the lock screen.
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*
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* @param intent the intent to resolve
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* @return true if the launched Activity would appear above the lock screen
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*/
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public boolean wouldShowOverLockscreen(Intent intent, int currentUserId) {
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ActivityInfo targetActivityInfo = getTargetActivityInfo(intent,
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currentUserId, false /* onlyDirectBootAware */);
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return targetActivityInfo != null
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&& (targetActivityInfo.flags & (ActivityInfo.FLAG_SHOW_WHEN_LOCKED
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| ActivityInfo.FLAG_SHOW_FOR_ALL_USERS)) > 0;
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}
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/**
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* Determines if sending the given intent would result in starting an Intent resolver activity,
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* instead of resolving to a specific component.
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*
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* @param resolved the resolveInfo for the intent as returned by resolveActivityAsUser
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* @param appList a list of resolveInfo as returned by queryIntentActivitiesAsUser
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* @return true if the intent would launch a resolver activity
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*/
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public boolean wouldLaunchResolverActivity(ResolveInfo resolved, List<ResolveInfo> appList) {
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// If the list contains the above resolved activity, then it can't be
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// ResolverActivity itself.
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for (int i = 0; i < appList.size(); i++) {
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ResolveInfo tmp = appList.get(i);
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if (tmp.activityInfo.name.equals(resolved.activityInfo.name)
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&& tmp.activityInfo.packageName.equals(resolved.activityInfo.packageName)) {
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return false;
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}
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}
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return true;
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}
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}
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