content: /*
   * Copyright (C) 2010 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.internal.app;
  
  import android.app.Activity;
  import android.app.ActivityManager;
  import android.app.ActivityTaskManager;
  import android.app.ActivityThread;
  import android.app.IApplicationThread;
  import android.content.Intent;
  import android.content.IntentSender;
  import android.content.pm.ApplicationInfo;
  import android.content.pm.PackageManager;
  import android.graphics.drawable.Drawable;
  import android.os.Bundle;
  import android.os.RemoteException;
  import android.util.Log;
  import android.view.View;
  import android.view.View.OnClickListener;
  import android.view.Window;
  import android.widget.ImageView;
  import android.widget.TextView;
  
  import com.android.internal.R;
  
  /**
   * This activity is displayed when the system attempts to start an Intent for
   * which there is more than one matching activity, allowing the user to decide
   * which to go to.  It is not normally used directly by application developers.
   */
  public class HeavyWeightSwitcherActivity extends Activity {
      /** The PendingIntent of the new activity being launched. */
      public static final String KEY_INTENT = "intent";
      /** Set if the caller is requesting a result. */
      public static final String KEY_HAS_RESULT = "has_result";
      /** Package of current heavy-weight app. */
      public static final String KEY_CUR_APP = "cur_app";
      /** Task that current heavy-weight activity is running in. */
      public static final String KEY_CUR_TASK = "cur_task";
      /** Package of newly requested heavy-weight app. */
      public static final String KEY_NEW_APP = "new_app";
      
      IntentSender mStartIntent;
      boolean mHasResult;
      String mCurApp;
      int mCurTask;
      String mNewApp;
      
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          
          requestWindowFeature(Window.FEATURE_NO_TITLE);
          
          mStartIntent = (IntentSender)getIntent().getParcelableExtra(KEY_INTENT);
          mHasResult = getIntent().getBooleanExtra(KEY_HAS_RESULT, false);
          mCurApp = getIntent().getStringExtra(KEY_CUR_APP);
          mCurTask = getIntent().getIntExtra(KEY_CUR_TASK, 0);
          mNewApp = getIntent().getStringExtra(KEY_NEW_APP);
          
          setContentView(com.android.internal.R.layout.heavy_weight_switcher);
          
          setIconAndText(R.id.old_app_icon, R.id.old_app_action, 0,
                  mCurApp, mNewApp, R.string.old_app_action, 0);
          setIconAndText(R.id.new_app_icon, R.id.new_app_action, R.id.new_app_description,
                  mNewApp, mCurApp, R.string.new_app_action, R.string.new_app_description);
              
          View button = findViewById((R.id.switch_old));
          button.setOnClickListener(mSwitchOldListener);
          button = findViewById((R.id.switch_new));
          button.setOnClickListener(mSwitchNewListener);
      }
  
      void setText(int id, CharSequence text) {
          ((TextView)findViewById(id)).setText(text);
      }
      
      void setDrawable(int id, Drawable dr) {
          if (dr != null) {
              ((ImageView)findViewById(id)).setImageDrawable(dr);
          }
      }
      
      void setIconAndText(int iconId, int actionId, int descriptionId,
              String packageName, String otherPackageName, int actionStr, int descriptionStr) {
          CharSequence appName = packageName;
          Drawable appIcon = null;
          if (packageName != null) {
              try {
                  ApplicationInfo info = getPackageManager().getApplicationInfo(
                          packageName, 0);
                  appName = info.loadLabel(getPackageManager());
                  appIcon = info.loadIcon(getPackageManager());
              } catch (PackageManager.NameNotFoundException e) {
              }
          }
          
          setDrawable(iconId, appIcon);
          setText(actionId, getString(actionStr, appName));
          if (descriptionId != 0) {
              CharSequence otherAppName = otherPackageName;
              if (otherPackageName != null) {
                  try {
                      ApplicationInfo info = getPackageManager().getApplicationInfo(
                              otherPackageName, 0);
                      otherAppName = info.loadLabel(getPackageManager());
                  } catch (PackageManager.NameNotFoundException e) {
                  }
              }
              setText(descriptionId, getString(descriptionStr, otherAppName));
          }
      }
      
      private OnClickListener mSwitchOldListener = new OnClickListener() {
          public void onClick(View v) {
              try {
                  ActivityThread thread = ActivityThread.currentActivityThread();
                  IApplicationThread appThread = thread.getApplicationThread();
                  ActivityTaskManager.getService().moveTaskToFront(appThread, getPackageName(),
                          mCurTask, 0, null);
              } catch (RemoteException e) {
              }
              finish();
          }
      };
      
      private OnClickListener mSwitchNewListener = new OnClickListener() {
          public void onClick(View v) {
              try {
                  ActivityManager.getService().finishHeavyWeightApp();
              } catch (RemoteException e) {
              }
              try {
                  if (mHasResult) {
                      startIntentSenderForResult(mStartIntent, -1, null,
                              Intent.FLAG_ACTIVITY_FORWARD_RESULT,
                              Intent.FLAG_ACTIVITY_FORWARD_RESULT, 0);
                  } else {
                      startIntentSenderForResult(mStartIntent, -1, null, 0, 0, 0);
                  }
              } catch (IntentSender.SendIntentException ex) {
                  Log.w("HeavyWeightSwitcherActivity", "Failure starting", ex);
              }
              finish();
          }
      };
  }
  