gecko/mobile/android/base/Distribution.java

115 lines
4.0 KiB
Java

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