The Tor Browser: mobile/android/base/webapp/InstallHelper.java@fc2d59ddac77

     1 /* -*- Mode: Java; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: nil; -*-

     2  * This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 package org.mozilla.gecko.webapp;

     8 import java.io.Closeable;

     9 import java.io.File;

    10 import java.io.FileOutputStream;

    11 import java.io.IOException;

    12 import java.io.InputStream;

    13 import java.io.OutputStream;

    15 import org.json.JSONException;

    16 import org.json.JSONObject;

    17 import org.mozilla.gecko.GeckoAppShell;

    18 import org.mozilla.gecko.GeckoEvent;

    19 import org.mozilla.gecko.GeckoProfile;

    20 import org.mozilla.gecko.gfx.BitmapUtils;

    21 import org.mozilla.gecko.util.GeckoEventListener;

    22 import org.mozilla.gecko.util.ThreadUtils;

    24 import android.content.Context;

    25 import android.graphics.Bitmap;

    26 import android.net.Uri;

    27 import android.util.Log;

    29 public class InstallHelper implements GeckoEventListener {

    30     private static final String LOGTAG = "GeckoWebappInstallHelper";

    31     private static final String[] INSTALL_EVENT_NAMES = new String[] {"Webapps:Postinstall"};

    32     private final Context mContext;

    33     private final InstallCallback mCallback;

    34     private final ApkResources mApkResources;

    36     public static interface InstallCallback {

    37         // on the GeckoThread

    38         void installCompleted(InstallHelper installHelper, String event, JSONObject message);

    40         // on the GeckoBackgroundThread

    41         void installErrored(InstallHelper installHelper, Exception exception);

    42     }

    44     public InstallHelper(Context context, ApkResources apkResources, InstallCallback cb) {

    45         mContext = context;

    46         mCallback = cb;

    47         mApkResources = apkResources;

    48     }

    50     public void startInstall(String profileName) throws IOException {

    51         startInstall(profileName, null);

    52     }

    54     public void startInstall(final String profileName, final JSONObject message) throws IOException {

    55         ThreadUtils.postToBackgroundThread(new Runnable() {

    56             @Override

    57             public void run() {

    58                 try {

    59                     install(profileName, message);

    60                 } catch (IOException e) {

    61                     handleException(e);

    62                 }

    63             }

    64         });

    65     }

    67     protected void handleException(Exception e) {

    68         if (mCallback != null) {

    69             mCallback.installErrored(this, e);

    70         } else {

    71             Log.e(LOGTAG, "mozApps.install failed", e);

    72         }

    73     }

    75     private void install(String profileName, JSONObject message) throws IOException {

    76         if (message == null) {

    77             message = new JSONObject();

    78         }

    80         // we can change the profile to be in the app's area here

    81         GeckoProfile profile = GeckoProfile.get(mContext, profileName);

    83         try {

    84             message.put("apkPackageName", mApkResources.getPackageName());

    85             message.put("manifestURL", mApkResources.getManifestUrl());

    86             message.put("title", mApkResources.getAppName());

    87             message.put("manifest", new JSONObject(mApkResources.getManifest(mContext)));

    89             String appType = mApkResources.getWebappType();

    90             message.putOpt("type", appType);

    91             if ("packaged".equals(appType)) {

    92                 message.putOpt("updateManifest", new JSONObject(mApkResources.getMiniManifest(mContext)));

    93             }

    95             message.putOpt("profilePath", profile.getDir());

    97             if (mApkResources.isPackaged()) {

    98                 File zipFile = copyApplicationZipFile();

    99                 message.putOpt("zipFilePath", Uri.fromFile(zipFile).toString());

   100             }

   101         } catch (JSONException e) {

   102             handleException(e);

   103             return;

   104         }

   106         registerGeckoListener();

   108         GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("Webapps:AutoInstall", message.toString()));

   109         calculateColor();

   110     }

   112     public File copyApplicationZipFile() throws IOException {

   113         if (!mApkResources.isPackaged()) {

   114             return null;

   115         }

   117         Uri uri = mApkResources.getZipFileUri();

   119         InputStream in = null;

   120         OutputStream out = null;

   121         File destPath = new File(mApkResources.getFileDirectory(), "application.zip");

   122         try {

   123             in = mContext.getContentResolver().openInputStream(uri);

   124             out = new FileOutputStream(destPath);

   125             byte[] buffer = new byte[1024];

   126             int read = 0;

   127             while ((read = in.read(buffer)) != -1) {

   128                 out.write(buffer, 0, read);

   129             }

   130             out.flush();

   131         } catch (IOException e) {

   132             throw e;

   133         } finally {

   134             close(in);

   135             close(out);

   136         }

   137         return destPath;

   138     }

   140     private static void close(Closeable close) {

   141         if (close == null) {

   142             return;

   143         }

   144         try {

   145             close.close();

   146         } catch (IOException e) {

   147             // NOP

   148         }

   149     }

   151     public void registerGeckoListener() {

   152         for (String eventName : INSTALL_EVENT_NAMES) {

   153             GeckoAppShell.registerEventListener(eventName, this);

   154         }

   155     }

   157     private void calculateColor() {

   158         ThreadUtils.assertOnBackgroundThread();

   159         Allocator slots = Allocator.getInstance(mContext);

   160         int index = slots.getIndexForApp(mApkResources.getPackageName());

   161         Bitmap bitmap = BitmapUtils.getBitmapFromDrawable(mApkResources.getAppIcon());

   162         slots.updateColor(index, BitmapUtils.getDominantColor(bitmap));

   163     }

   165     @Override

   166     public void handleMessage(String event, JSONObject message) {

   167         for (String eventName : INSTALL_EVENT_NAMES) {

   168             GeckoAppShell.unregisterEventListener(eventName, this);

   169         }

   171         if (mCallback != null) {

   172             mCallback.installCompleted(this, event, message);

   173         }

   174     }

   175 }

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