mirror of
https://github.com/mozilla/gecko-dev.git
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115 lines
4.0 KiB
Java
115 lines
4.0 KiB
Java
/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
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* ***** BEGIN LICENSE BLOCK *****
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* ***** END LICENSE BLOCK ***** */
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package org.mozilla.gecko;
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import org.mozilla.gecko.util.GeckoBackgroundThread;
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import android.app.Activity;
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import android.content.SharedPreferences;
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import android.util.Log;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.util.Enumeration;
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import java.util.zip.ZipEntry;
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import java.util.zip.ZipFile;
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public final class Distribution {
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private static final String LOGTAG = "GeckoDistribution";
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private static final int STATE_UNKNOWN = 0;
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private static final int STATE_NONE = 1;
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private static final int STATE_SET = 2;
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/**
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* Initializes distribution if it hasn't already been initalized.
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*/
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public static void init(final Activity activity) {
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// Read/write preferences and files on the background thread.
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GeckoBackgroundThread.getHandler().post(new Runnable() {
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public void run() {
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// Bail if we've already initialized the distribution.
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SharedPreferences settings = activity.getPreferences(Activity.MODE_PRIVATE);
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String keyName = activity.getPackageName() + ".distribution_state";
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int state = settings.getInt(keyName, STATE_UNKNOWN);
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if (state == STATE_NONE)
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return;
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// Send a message to Gecko if we've set a distribution.
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if (state == STATE_SET) {
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GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("Distribution:Set", null));
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return;
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}
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boolean distributionSet = false;
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try {
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distributionSet = copyFiles(activity);
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} catch (IOException e) {
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Log.e(LOGTAG, "Error copying distribution files", e);
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}
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if (distributionSet) {
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GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("Distribution:Set", null));
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settings.edit().putInt(keyName, STATE_SET).commit();
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} else {
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settings.edit().putInt(keyName, STATE_NONE).commit();
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}
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}
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});
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}
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/**
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* Copies the /distribution folder out of the APK and into the app's data directory.
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* Returns true if distribution files were found and copied.
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*/
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private static boolean copyFiles(Activity activity) throws IOException {
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File applicationPackage = new File(activity.getPackageResourcePath());
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ZipFile zip = new ZipFile(applicationPackage);
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boolean distributionSet = false;
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Enumeration<? extends ZipEntry> zipEntries = zip.entries();
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while (zipEntries.hasMoreElements()) {
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ZipEntry fileEntry = zipEntries.nextElement();
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String name = fileEntry.getName();
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if (!name.startsWith("distribution/"))
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continue;
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distributionSet = true;
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File dataDir = new File(activity.getApplicationInfo().dataDir);
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File outFile = new File(dataDir, name);
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File dir = outFile.getParentFile();
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if (!dir.exists())
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dir.mkdirs();
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InputStream fileStream = zip.getInputStream(fileEntry);
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OutputStream outStream = new FileOutputStream(outFile);
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int b;
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while ((b = fileStream.read()) != -1)
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outStream.write(b);
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fileStream.close();
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outStream.close();
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outFile.setLastModified(fileEntry.getTime());
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}
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zip.close();
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return distributionSet;
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}
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}
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