1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.documentsui.inspector.actions; 17 18 import android.annotation.StringRes; 19 import android.content.Context; 20 import android.content.Intent; 21 import android.content.pm.PackageManager; 22 import android.content.pm.ResolveInfo; 23 24 import com.android.documentsui.R; 25 import com.android.documentsui.base.DocumentInfo; 26 27 import java.util.List; 28 29 /** 30 * Model for clearing the default app that opens a file. 31 */ 32 public final class ClearDefaultAppAction extends Action { 33 ClearDefaultAppAction(Context context, PackageManager pm, DocumentInfo doc)34 public ClearDefaultAppAction(Context context, PackageManager pm, DocumentInfo doc) { 35 super(context, pm, doc); 36 } 37 38 /** 39 * @return the header for this action. In English it would be "This file opens with" 40 */ 41 @Override getHeader()42 public String getHeader() { 43 return mContext.getString(R.string.handler_app_file_opens_with); 44 } 45 46 @Override getButtonIcon()47 public int getButtonIcon() { 48 return R.drawable.ic_action_clear; 49 } 50 51 /** 52 * Checks if we can clear the default app to open a file. 53 * 54 * @return true if we can clear, false if we can't clear. 55 */ 56 @Override canPerformAction()57 public boolean canPerformAction() { 58 Intent intent = new Intent(Intent.ACTION_VIEW, mDoc.derivedUri); 59 List<ResolveInfo> list = mPm.queryIntentActivities(intent, 60 PackageManager.MATCH_DEFAULT_ONLY); 61 62 if (list.size() > 1) { 63 String packageName = getPackageName(); 64 if (packageName == null) { 65 return false; 66 } else if (APP_NOT_CHOSEN.equals(packageName)) { 67 return false; 68 } else { 69 return true; 70 } 71 } else { 72 return false; 73 } 74 } 75 76 @Override getPackageName()77 public String getPackageName() { 78 79 Intent intent = new Intent(Intent.ACTION_VIEW, mDoc.derivedUri); 80 ResolveInfo resolveInfo = mPm.resolveActivity(intent, 0); 81 82 if (resolveInfo != null && resolveInfo.activityInfo != null) { 83 return resolveInfo.activityInfo.packageName; 84 } else { 85 return null; 86 } 87 } 88 getButtonLabel()89 public @StringRes int getButtonLabel() { 90 return R.string.button_clear; 91 } 92 }