1/*
2 * Copyright (C) 2010 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
17package com.android.internal.app;
18
19import com.android.internal.R;
20
21import android.app.Activity;
22import android.app.ActivityManagerNative;
23import android.content.Intent;
24import android.content.IntentSender;
25import android.content.pm.ApplicationInfo;
26import android.content.pm.PackageManager;
27import android.graphics.drawable.Drawable;
28import android.os.Bundle;
29import android.os.RemoteException;
30import android.util.Log;
31import android.util.TypedValue;
32import android.view.View;
33import android.view.Window;
34import android.view.View.OnClickListener;
35import android.widget.Button;
36import android.widget.ImageView;
37import android.widget.TextView;
38
39/**
40 * This activity is displayed when the system attempts to start an Intent for
41 * which there is more than one matching activity, allowing the user to decide
42 * which to go to.  It is not normally used directly by application developers.
43 */
44public class HeavyWeightSwitcherActivity extends Activity {
45    /** The PendingIntent of the new activity being launched. */
46    public static final String KEY_INTENT = "intent";
47    /** Set if the caller is requesting a result. */
48    public static final String KEY_HAS_RESULT = "has_result";
49    /** Package of current heavy-weight app. */
50    public static final String KEY_CUR_APP = "cur_app";
51    /** Task that current heavy-weight activity is running in. */
52    public static final String KEY_CUR_TASK = "cur_task";
53    /** Package of newly requested heavy-weight app. */
54    public static final String KEY_NEW_APP = "new_app";
55
56    IntentSender mStartIntent;
57    boolean mHasResult;
58    String mCurApp;
59    int mCurTask;
60    String mNewApp;
61
62    @Override
63    protected void onCreate(Bundle savedInstanceState) {
64        super.onCreate(savedInstanceState);
65
66        requestWindowFeature(Window.FEATURE_LEFT_ICON);
67
68        mStartIntent = (IntentSender)getIntent().getParcelableExtra(KEY_INTENT);
69        mHasResult = getIntent().getBooleanExtra(KEY_HAS_RESULT, false);
70        mCurApp = getIntent().getStringExtra(KEY_CUR_APP);
71        mCurTask = getIntent().getIntExtra(KEY_CUR_TASK, 0);
72        mNewApp = getIntent().getStringExtra(KEY_NEW_APP);
73
74        setContentView(com.android.internal.R.layout.heavy_weight_switcher);
75
76        setIconAndText(R.id.old_app_icon, R.id.old_app_action, R.id.old_app_description,
77                mCurApp, R.string.old_app_action, R.string.old_app_description);
78        setIconAndText(R.id.new_app_icon, R.id.new_app_action, R.id.new_app_description,
79                mNewApp, R.string.new_app_action, R.string.new_app_description);
80
81        View button = findViewById((R.id.switch_old));
82        button.setOnClickListener(mSwitchOldListener);
83        button = findViewById((R.id.switch_new));
84        button.setOnClickListener(mSwitchNewListener);
85        button = findViewById((R.id.cancel));
86        button.setOnClickListener(mCancelListener);
87
88        TypedValue out = new TypedValue();
89        getTheme().resolveAttribute(android.R.attr.alertDialogIcon, out, true);
90        getWindow().setFeatureDrawableResource(Window.FEATURE_LEFT_ICON,
91                out.resourceId);
92    }
93
94    void setText(int id, CharSequence text) {
95        ((TextView)findViewById(id)).setText(text);
96    }
97
98    void setDrawable(int id, Drawable dr) {
99        if (dr != null) {
100            ((ImageView)findViewById(id)).setImageDrawable(dr);
101        }
102    }
103
104    void setIconAndText(int iconId, int actionId, int descriptionId,
105            String packageName, int actionStr, int descriptionStr) {
106        CharSequence appName = "";
107        Drawable appIcon = null;
108        if (mCurApp != null) {
109            try {
110                ApplicationInfo info = getPackageManager().getApplicationInfo(
111                        packageName, 0);
112                appName = info.loadLabel(getPackageManager());
113                appIcon = info.loadIcon(getPackageManager());
114            } catch (PackageManager.NameNotFoundException e) {
115            }
116        }
117
118        setDrawable(iconId, appIcon);
119        setText(actionId, getString(actionStr, appName));
120        setText(descriptionId, getText(descriptionStr));
121    }
122
123    private OnClickListener mSwitchOldListener = new OnClickListener() {
124        public void onClick(View v) {
125            try {
126                ActivityManagerNative.getDefault().moveTaskToFront(mCurTask, 0, null);
127            } catch (RemoteException e) {
128            }
129            finish();
130        }
131    };
132
133    private OnClickListener mSwitchNewListener = new OnClickListener() {
134        public void onClick(View v) {
135            try {
136                ActivityManagerNative.getDefault().finishHeavyWeightApp();
137            } catch (RemoteException e) {
138            }
139            try {
140                if (mHasResult) {
141                    startIntentSenderForResult(mStartIntent, -1, null,
142                            Intent.FLAG_ACTIVITY_FORWARD_RESULT,
143                            Intent.FLAG_ACTIVITY_FORWARD_RESULT, 0);
144                } else {
145                    startIntentSenderForResult(mStartIntent, -1, null, 0, 0, 0);
146                }
147            } catch (IntentSender.SendIntentException ex) {
148                Log.w("HeavyWeightSwitcherActivity", "Failure starting", ex);
149            }
150            finish();
151        }
152    };
153
154    private OnClickListener mCancelListener = new OnClickListener() {
155        public void onClick(View v) {
156            finish();
157        }
158    };
159}
160