/*
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* Copyright (C) 2014 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.statusbar.policy;
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import android.content.ComponentName;
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import android.content.Context;
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import android.content.Intent;
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import android.content.pm.PackageManager;
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import android.content.pm.ResolveInfo;
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import android.os.Bundle;
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import android.util.Log;
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import android.view.LayoutInflater;
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import android.view.View;
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import com.android.internal.widget.LockPatternUtils;
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import com.android.keyguard.KeyguardUpdateMonitor;
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import com.android.systemui.ActivityIntentHelper;
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import com.android.systemui.statusbar.phone.KeyguardPreviewContainer;
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import java.util.List;
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/**
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* Utility class to inflate previews for phone and camera affordance.
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*/
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public class PreviewInflater {
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private static final String TAG = "PreviewInflater";
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private static final String META_DATA_KEYGUARD_LAYOUT = "com.android.keyguard.layout";
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private final ActivityIntentHelper mActivityIntentHelper;
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private Context mContext;
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private LockPatternUtils mLockPatternUtils;
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public PreviewInflater(Context context, LockPatternUtils lockPatternUtils,
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ActivityIntentHelper activityIntentHelper) {
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mContext = context;
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mLockPatternUtils = lockPatternUtils;
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mActivityIntentHelper = activityIntentHelper;
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}
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public View inflatePreview(Intent intent) {
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WidgetInfo info = getWidgetInfo(intent);
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return inflatePreview(info);
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}
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public View inflatePreviewFromService(ComponentName componentName) {
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WidgetInfo info = getWidgetInfoFromService(componentName);
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return inflatePreview(info);
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}
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private KeyguardPreviewContainer inflatePreview(WidgetInfo info) {
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if (info == null) {
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return null;
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}
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View v = inflateWidgetView(info);
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if (v == null) {
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return null;
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}
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KeyguardPreviewContainer container = new KeyguardPreviewContainer(mContext, null);
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container.addView(v);
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return container;
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}
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private View inflateWidgetView(WidgetInfo widgetInfo) {
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View widgetView = null;
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try {
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Context appContext = mContext.createPackageContext(
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widgetInfo.contextPackage, Context.CONTEXT_RESTRICTED);
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LayoutInflater appInflater = (LayoutInflater)
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appContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
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appInflater = appInflater.cloneInContext(appContext);
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widgetView = appInflater.inflate(widgetInfo.layoutId, null, false);
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} catch (PackageManager.NameNotFoundException|RuntimeException e) {
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Log.w(TAG, "Error creating widget view", e);
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}
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return widgetView;
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}
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private WidgetInfo getWidgetInfoFromService(ComponentName componentName) {
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PackageManager packageManager = mContext.getPackageManager();
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// Look for the preview specified in the service meta-data
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try {
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Bundle metaData = packageManager.getServiceInfo(
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componentName, PackageManager.GET_META_DATA).metaData;
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return getWidgetInfoFromMetaData(componentName.getPackageName(), metaData);
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} catch (PackageManager.NameNotFoundException e) {
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Log.w(TAG, "Failed to load preview; " + componentName.flattenToShortString()
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+ " not found", e);
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}
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return null;
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}
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private WidgetInfo getWidgetInfoFromMetaData(String contextPackage,
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Bundle metaData) {
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if (metaData == null) {
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return null;
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}
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int layoutId = metaData.getInt(META_DATA_KEYGUARD_LAYOUT);
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if (layoutId == 0) {
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return null;
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}
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WidgetInfo info = new WidgetInfo();
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info.contextPackage = contextPackage;
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info.layoutId = layoutId;
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return info;
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}
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private WidgetInfo getWidgetInfo(Intent intent) {
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PackageManager packageManager = mContext.getPackageManager();
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int flags = PackageManager.MATCH_DEFAULT_ONLY
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| PackageManager.MATCH_DIRECT_BOOT_AWARE
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| PackageManager.MATCH_DIRECT_BOOT_UNAWARE;
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final List<ResolveInfo> appList = packageManager.queryIntentActivitiesAsUser(
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intent, flags, KeyguardUpdateMonitor.getCurrentUser());
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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,
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KeyguardUpdateMonitor.getCurrentUser());
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if (mActivityIntentHelper.wouldLaunchResolverActivity(resolved, appList)) {
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return null;
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}
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if (resolved == null || resolved.activityInfo == null) {
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return null;
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}
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return getWidgetInfoFromMetaData(resolved.activityInfo.packageName,
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resolved.activityInfo.metaData);
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}
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private static class WidgetInfo {
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String contextPackage;
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int layoutId;
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}
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}
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