remoting/android/java/src/org/chromium/chromoting/HelpActivity.java

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 package org.chromium.chromoting;
   6
   7 import android.app.Activity;
   8 import android.content.ComponentName;
   9 import android.content.Intent;
  10 import android.content.ServiceConnection;
  11 import android.content.pm.PackageInfo;
  12 import android.content.pm.PackageManager;
  13 import android.graphics.Bitmap;
  14 import android.net.Uri;
  15 import android.os.Binder;
  16 import android.os.Bundle;
  17 import android.os.IBinder;
  18 import android.os.Parcel;
  19 import android.os.RemoteException;
  20 import android.support.v7.app.ActionBarActivity;
  21 import android.text.TextUtils;
  22 import android.util.Log;
  23 import android.view.Menu;
  24 import android.view.MenuItem;
  25 import android.view.View;
  26 import android.webkit.WebView;
  27 import android.webkit.WebViewClient;
  28
  29 import org.chromium.ui.UiUtils;
  30
  31 /**
  32  * The Activity for showing the Help screen.
  33  */
  34 public class HelpActivity extends ActionBarActivity {
  35     private static final String PLAY_STORE_URL = "market://details?id=";
  36
  37     private static final String FEEDBACK_PACKAGE = "com.google.android.gms";
  38
  39     private static final String FEEDBACK_CLASS =
  40             "com.google.android.gms.feedback.LegacyBugReportService";
  41
  42     /**
  43      * Maximum dimension for the screenshot to be sent to the Send Feedback handler.  This size
  44      * ensures the size of bitmap < 1MB, which is a requirement of the handler.
  45      */
  46     private static final int MAX_FEEDBACK_SCREENSHOT_DIMENSION = 600;
  47
  48     /**
  49      * This global variable is used for passing the screenshot from the originating Activity to the
  50      * HelpActivity. There seems to be no better way of doing this.
  51      */
  52     private static Bitmap sScreenshot;
  53
  54     /** Constant used to send the feedback parcel to the system feedback service. */
  55     private static final int SEND_FEEDBACK_INFO = Binder.FIRST_CALL_TRANSACTION;
  56
  57     /** Launches an external web browser or application. */
  58     private void openUrl(String url) {
  59         Uri uri = Uri.parse(url);
  60         Intent intent = new Intent(Intent.ACTION_VIEW, uri);
  61
  62         // Verify that the device can launch an application for this intent, otherwise
  63         // startActivity() may crash the application.
  64         if (intent.resolveActivity(getPackageManager()) != null) {
  65             startActivity(intent);
  66         }
  67     }
  68
  69     private void sendFeedback() {
  70         Intent intent = new Intent(Intent.ACTION_BUG_REPORT);
  71         intent.setComponent(new ComponentName(FEEDBACK_PACKAGE, FEEDBACK_CLASS));
  72         if (getPackageManager().resolveService(intent, 0) == null) {
  73             Log.e("help", "Unable to resolve Feedback service.");
  74             return;
  75         }
  76
  77         ServiceConnection conn = new ServiceConnection() {
  78             @Override
  79             public void onServiceConnected(ComponentName name, IBinder service) {
  80                 try {
  81                     Parcel parcel = Parcel.obtain();
  82                     if (sScreenshot != null) {
  83                         sScreenshot.writeToParcel(parcel, 0);
  84                     }
  85                     service.transact(SEND_FEEDBACK_INFO, parcel, null, 0);
  86                     parcel.recycle();
  87                 } catch (RemoteException ex) {
  88                     Log.e("help", "Unexpected error sending feedback: ", ex);
  89                 }
  90             }
  91
  92             @Override
  93             public void onServiceDisconnected(ComponentName name) {}
  94         };
  95
  96         bindService(intent, conn, BIND_AUTO_CREATE);
  97     }
  98
  99     /** Launches the Help activity. */
 100     public static void launch(Activity activity, String helpUrl) {
 101         View rootView = activity.getWindow().getDecorView().getRootView();
 102         sScreenshot = UiUtils.generateScaledScreenshot(rootView, MAX_FEEDBACK_SCREENSHOT_DIMENSION,
 103                 Bitmap.Config.ARGB_8888);
 104
 105         Intent intent = new Intent(activity, HelpActivity.class);
 106         intent.setData(Uri.parse(helpUrl));
 107         activity.startActivity(intent);
 108     }
 109
 110     @Override
 111     public void onCreate(Bundle savedInstanceState) {
 112         super.onCreate(savedInstanceState);
 113
 114         WebView webView = new WebView(this);
 115         setContentView(webView);
 116
 117         getSupportActionBar().setTitle(getString(R.string.actionbar_help_title));
 118
 119         CharSequence appName = getTitle();
 120         CharSequence versionName = null;
 121         try {
 122             PackageInfo info = getPackageManager().getPackageInfo(getPackageName(), 0);
 123             versionName = info.versionName;
 124         } catch (PackageManager.NameNotFoundException ex) {
 125             throw new RuntimeException("Unable to get version: " + ex);
 126         }
 127
 128         CharSequence subtitle = TextUtils.concat(appName, " ", versionName);
 129         getSupportActionBar().setSubtitle(subtitle);
 130
 131         // This line ensures the WebView remains embedded in this activity and doesn't launch an
 132         // external Chrome browser.
 133         webView.setWebViewClient(new WebViewClient());
 134         webView.getSettings().setJavaScriptEnabled(true);
 135         String url = getIntent().getDataString();
 136         webView.loadUrl(url);
 137     }
 138
 139     @Override
 140     public boolean onCreateOptionsMenu(Menu menu) {
 141         getMenuInflater().inflate(R.menu.help_actionbar, menu);
 142         return super.onCreateOptionsMenu(menu);
 143     }
 144
 145     @Override
 146     public boolean onOptionsItemSelected(MenuItem item) {
 147         int id = item.getItemId();
 148         if (id == R.id.actionbar_feedback) {
 149             sendFeedback();
 150             return true;
 151         }
 152         if (id == R.id.actionbar_play_store) {
 153             openUrl(PLAY_STORE_URL + getPackageName());
 154             return true;
 155         }
 156         return super.onOptionsItemSelected(item);
 157     }
 158 }