gecko-dev/embedding/android/GeckoApp.java
2012-05-21 12:12:37 +01:00

859 lines
32 KiB
Java

/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
* 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/. */
package org.mozilla.gecko;
import java.io.*;
import java.util.*;
import java.util.zip.*;
import java.nio.*;
import java.nio.channels.FileChannel;
import java.util.concurrent.*;
import java.lang.reflect.*;
import android.os.*;
import android.app.*;
import android.text.*;
import android.view.*;
import android.view.inputmethod.*;
import android.content.*;
import android.content.res.*;
import android.graphics.*;
import android.widget.*;
import android.hardware.*;
import android.util.*;
import android.net.*;
import android.database.*;
import android.provider.*;
import android.content.pm.*;
import android.content.pm.PackageManager.*;
import dalvik.system.*;
abstract public class GeckoApp
extends Activity
{
private static final String LOG_FILE_NAME = "GeckoApp";
public static final String ACTION_ALERT_CLICK = "org.mozilla.gecko.ACTION_ALERT_CLICK";
public static final String ACTION_ALERT_CLEAR = "org.mozilla.gecko.ACTION_ALERT_CLEAR";
public static final String ACTION_WEBAPP = "org.mozilla.gecko.WEBAPP";
public static final String ACTION_DEBUG = "org.mozilla.gecko.DEBUG";
public static final String ACTION_BOOKMARK = "org.mozilla.gecko.BOOKMARK";
public static AbsoluteLayout mainLayout;
public static GeckoSurfaceView surfaceView;
public static SurfaceView cameraView;
public static GeckoApp mAppContext;
public static boolean mFullscreen = false;
public static File sGREDir = null;
static Thread mLibLoadThread = null;
public Handler mMainHandler;
private IntentFilter mConnectivityFilter;
private BroadcastReceiver mConnectivityReceiver;
private BroadcastReceiver mBatteryReceiver;
enum LaunchState {PreLaunch, Launching, WaitForDebugger,
Launched, GeckoRunning, GeckoExiting};
private static LaunchState sLaunchState = LaunchState.PreLaunch;
private static boolean sTryCatchAttached = false;
static boolean checkLaunchState(LaunchState checkState) {
synchronized(sLaunchState) {
return sLaunchState == checkState;
}
}
static void setLaunchState(LaunchState setState) {
synchronized(sLaunchState) {
sLaunchState = setState;
}
}
// if mLaunchState is equal to checkState this sets mLaunchState to setState
// and return true. Otherwise we return false.
static boolean checkAndSetLaunchState(LaunchState checkState, LaunchState setState) {
synchronized(sLaunchState) {
if (sLaunchState != checkState)
return false;
sLaunchState = setState;
return true;
}
}
void showErrorDialog(String message)
{
new AlertDialog.Builder(this)
.setMessage(message)
.setCancelable(false)
.setPositiveButton(R.string.exit_label,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int id)
{
GeckoApp.this.finish();
System.exit(0);
}
}).show();
}
public static final String PLUGIN_ACTION = "android.webkit.PLUGIN";
/**
* A plugin that wish to be loaded in the WebView must provide this permission
* in their AndroidManifest.xml.
*/
public static final String PLUGIN_PERMISSION = "android.webkit.permission.PLUGIN";
private static final String LOGTAG = "PluginManager";
private static final String PLUGIN_SYSTEM_LIB = "/system/lib/plugins/";
private static final String PLUGIN_TYPE = "type";
private static final String TYPE_NATIVE = "native";
public ArrayList<PackageInfo> mPackageInfoCache = new ArrayList<PackageInfo>();
String[] getPluginDirectories() {
ArrayList<String> directories = new ArrayList<String>();
PackageManager pm = this.mAppContext.getPackageManager();
List<ResolveInfo> plugins = pm.queryIntentServices(new Intent(PLUGIN_ACTION),
PackageManager.GET_SERVICES | PackageManager.GET_META_DATA);
synchronized(mPackageInfoCache) {
// clear the list of existing packageInfo objects
mPackageInfoCache.clear();
for (ResolveInfo info : plugins) {
// retrieve the plugin's service information
ServiceInfo serviceInfo = info.serviceInfo;
if (serviceInfo == null) {
Log.w(LOGTAG, "Ignore bad plugin");
continue;
}
Log.w(LOGTAG, "Loading plugin: " + serviceInfo.packageName);
// retrieve information from the plugin's manifest
PackageInfo pkgInfo;
try {
pkgInfo = pm.getPackageInfo(serviceInfo.packageName,
PackageManager.GET_PERMISSIONS
| PackageManager.GET_SIGNATURES);
} catch (Exception e) {
Log.w(LOGTAG, "Can't find plugin: " + serviceInfo.packageName);
continue;
}
if (pkgInfo == null) {
Log.w(LOGTAG, "Loading plugin: " + serviceInfo.packageName + ". Could not load package information.");
continue;
}
/*
* find the location of the plugin's shared library. The default
* is to assume the app is either a user installed app or an
* updated system app. In both of these cases the library is
* stored in the app's data directory.
*/
String directory = pkgInfo.applicationInfo.dataDir + "/lib";
final int appFlags = pkgInfo.applicationInfo.flags;
final int updatedSystemFlags = ApplicationInfo.FLAG_SYSTEM |
ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;
// preloaded system app with no user updates
if ((appFlags & updatedSystemFlags) == ApplicationInfo.FLAG_SYSTEM) {
directory = PLUGIN_SYSTEM_LIB + pkgInfo.packageName;
}
// check if the plugin has the required permissions
String permissions[] = pkgInfo.requestedPermissions;
if (permissions == null) {
Log.w(LOGTAG, "Loading plugin: " + serviceInfo.packageName + ". Does not have required permission.");
continue;
}
boolean permissionOk = false;
for (String permit : permissions) {
if (PLUGIN_PERMISSION.equals(permit)) {
permissionOk = true;
break;
}
}
if (!permissionOk) {
Log.w(LOGTAG, "Loading plugin: " + serviceInfo.packageName + ". Does not have required permission (2).");
continue;
}
// check to ensure the plugin is properly signed
Signature signatures[] = pkgInfo.signatures;
if (signatures == null) {
Log.w(LOGTAG, "Loading plugin: " + serviceInfo.packageName + ". Not signed.");
continue;
}
// determine the type of plugin from the manifest
if (serviceInfo.metaData == null) {
Log.e(LOGTAG, "The plugin '" + serviceInfo.name + "' has no type defined");
continue;
}
String pluginType = serviceInfo.metaData.getString(PLUGIN_TYPE);
if (!TYPE_NATIVE.equals(pluginType)) {
Log.e(LOGTAG, "Unrecognized plugin type: " + pluginType);
continue;
}
try {
Class<?> cls = getPluginClass(serviceInfo.packageName, serviceInfo.name);
//TODO implement any requirements of the plugin class here!
boolean classFound = true;
if (!classFound) {
Log.e(LOGTAG, "The plugin's class' " + serviceInfo.name + "' does not extend the appropriate class.");
continue;
}
} catch (NameNotFoundException e) {
Log.e(LOGTAG, "Can't find plugin: " + serviceInfo.packageName);
continue;
} catch (ClassNotFoundException e) {
Log.e(LOGTAG, "Can't find plugin's class: " + serviceInfo.name);
continue;
}
// if all checks have passed then make the plugin available
mPackageInfoCache.add(pkgInfo);
directories.add(directory);
}
}
return directories.toArray(new String[directories.size()]);
}
Class<?> getPluginClass(String packageName, String className)
throws NameNotFoundException, ClassNotFoundException {
Context pluginContext = this.mAppContext.createPackageContext(packageName,
Context.CONTEXT_INCLUDE_CODE |
Context.CONTEXT_IGNORE_SECURITY);
ClassLoader pluginCL = pluginContext.getClassLoader();
return pluginCL.loadClass(className);
}
// Returns true when the intent is going to be handled by gecko launch
boolean launch(Intent intent)
{
if (!checkAndSetLaunchState(LaunchState.Launching, LaunchState.Launched))
return false;
if (intent == null)
intent = getIntent();
final Intent i = intent;
new Thread() {
public void run() {
try {
if (mLibLoadThread != null)
mLibLoadThread.join();
} catch (InterruptedException ie) {}
// Show the URL we are about to load, if the intent has one
if (Intent.ACTION_VIEW.equals(i.getAction())) {
surfaceView.mSplashURL = i.getDataString();
}
surfaceView.drawSplashScreen();
// unpack files in the components directory
try {
unpackComponents();
} catch (FileNotFoundException fnfe) {
Log.e(LOG_FILE_NAME, "error unpacking components", fnfe);
Looper.prepare();
showErrorDialog(getString(R.string.error_loading_file));
Looper.loop();
return;
} catch (IOException ie) {
Log.e(LOG_FILE_NAME, "error unpacking components", ie);
String msg = ie.getMessage();
Looper.prepare();
if (msg != null && msg.equalsIgnoreCase("No space left on device"))
showErrorDialog(getString(R.string.no_space_to_start_error));
else
showErrorDialog(getString(R.string.error_loading_file));
Looper.loop();
return;
}
// and then fire us up
try {
String env = i.getStringExtra("env0");
GeckoAppShell.runGecko(getApplication().getPackageResourcePath(),
i.getStringExtra("args"),
i.getDataString());
} catch (Exception e) {
Log.e(LOG_FILE_NAME, "top level exception", e);
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
e.printStackTrace(pw);
pw.flush();
GeckoAppShell.reportJavaCrash(sw.toString());
}
}
}.start();
return true;
}
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
mAppContext = this;
mMainHandler = new Handler();
if (!sTryCatchAttached) {
sTryCatchAttached = true;
mMainHandler.post(new Runnable() {
public void run() {
try {
Looper.loop();
} catch (Exception e) {
Log.e(LOG_FILE_NAME, "top level exception", e);
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
e.printStackTrace(pw);
pw.flush();
GeckoAppShell.reportJavaCrash(sw.toString());
}
// resetting this is kinda pointless, but oh well
sTryCatchAttached = false;
}
});
}
SharedPreferences settings = getPreferences(Activity.MODE_PRIVATE);
String localeCode = settings.getString(getPackageName() + ".locale", "");
if (localeCode != null && localeCode.length() > 0)
GeckoAppShell.setSelectedLocale(localeCode);
Log.i(LOG_FILE_NAME, "create");
super.onCreate(savedInstanceState);
if (sGREDir == null)
sGREDir = new File(this.getApplicationInfo().dataDir);
getWindow().setFlags(mFullscreen ?
WindowManager.LayoutParams.FLAG_FULLSCREEN : 0,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
if (cameraView == null) {
cameraView = new SurfaceView(this);
cameraView.getHolder().setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
}
if (surfaceView == null)
surfaceView = new GeckoSurfaceView(this);
else
mainLayout.removeAllViews();
mainLayout = new AbsoluteLayout(this);
mainLayout.addView(surfaceView,
new AbsoluteLayout.LayoutParams(AbsoluteLayout.LayoutParams.MATCH_PARENT, // level 8
AbsoluteLayout.LayoutParams.MATCH_PARENT,
0,
0));
setContentView(mainLayout,
new ViewGroup.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT,
ViewGroup.LayoutParams.FILL_PARENT));
mConnectivityFilter = new IntentFilter();
mConnectivityFilter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
mConnectivityReceiver = new GeckoConnectivityReceiver();
IntentFilter batteryFilter = new IntentFilter();
batteryFilter.addAction(Intent.ACTION_BATTERY_CHANGED);
mBatteryReceiver = new GeckoBatteryManager();
registerReceiver(mBatteryReceiver, batteryFilter);
if (SmsManager.getInstance() != null) {
SmsManager.getInstance().start();
}
GeckoNetworkManager.getInstance().init();
if (!checkAndSetLaunchState(LaunchState.PreLaunch,
LaunchState.Launching))
return;
checkAndLaunchUpdate();
mLibLoadThread = new Thread(new Runnable() {
public void run() {
// At some point while loading the gecko libs our default locale gets set
// so just save it to locale here and reset it as default after the join
Locale locale = Locale.getDefault();
GeckoAppShell.loadGeckoLibs(
getApplication().getPackageResourcePath());
Locale.setDefault(locale);
Resources res = getBaseContext().getResources();
Configuration config = res.getConfiguration();
config.locale = locale;
res.updateConfiguration(config, res.getDisplayMetrics());
}});
mLibLoadThread.start();
}
public void enableCameraView() {
// Some phones (eg. nexus S) need at least a 8x16 preview size
mainLayout.addView(cameraView, new AbsoluteLayout.LayoutParams(8, 16, 0, 0));
}
public void disableCameraView() {
mainLayout.removeView(cameraView);
}
@Override
protected void onNewIntent(Intent intent) {
if (checkLaunchState(LaunchState.GeckoExiting)) {
// We're exiting and shouldn't try to do anything else just incase
// we're hung for some reason we'll force the process to exit
System.exit(0);
return;
}
final String action = intent.getAction();
if (ACTION_DEBUG.equals(action) &&
checkAndSetLaunchState(LaunchState.Launching, LaunchState.WaitForDebugger)) {
mMainHandler.postDelayed(new Runnable() {
public void run() {
Log.i(LOG_FILE_NAME, "Launching from debug intent after 5s wait");
setLaunchState(LaunchState.Launching);
launch(null);
}
}, 1000 * 5 /* 5 seconds */);
Log.i(LOG_FILE_NAME, "Intent : ACTION_DEBUG - waiting 5s before launching");
return;
}
if (checkLaunchState(LaunchState.WaitForDebugger) || launch(intent))
return;
if (Intent.ACTION_MAIN.equals(action)) {
Log.i(LOG_FILE_NAME, "Intent : ACTION_MAIN");
GeckoAppShell.sendEventToGecko(new GeckoEvent(""));
}
else if (Intent.ACTION_VIEW.equals(action)) {
String uri = intent.getDataString();
GeckoAppShell.sendEventToGecko(new GeckoEvent(uri));
Log.i(LOG_FILE_NAME,"onNewIntent: "+uri);
}
else if (ACTION_WEBAPP.equals(action)) {
String uri = intent.getStringExtra("args");
GeckoAppShell.sendEventToGecko(new GeckoEvent(uri));
Log.i(LOG_FILE_NAME,"Intent : WEBAPP - " + uri);
}
else if (ACTION_BOOKMARK.equals(action)) {
String args = intent.getStringExtra("args");
GeckoAppShell.sendEventToGecko(new GeckoEvent(args));
Log.i(LOG_FILE_NAME,"Intent : BOOKMARK - " + args);
}
}
@Override
public void onPause()
{
Log.i(LOG_FILE_NAME, "pause");
GeckoAppShell.sendEventToGecko(new GeckoEvent(GeckoEvent.ACTIVITY_PAUSING));
// The user is navigating away from this activity, but nothing
// has come to the foreground yet; for Gecko, we may want to
// stop repainting, for example.
// Whatever we do here should be fast, because we're blocking
// the next activity from showing up until we finish.
// onPause will be followed by either onResume or onStop.
super.onPause();
unregisterReceiver(mConnectivityReceiver);
GeckoNetworkManager.getInstance().stop();
GeckoScreenOrientationListener.getInstance().stop();
}
@Override
public void onResume()
{
Log.i(LOG_FILE_NAME, "resume");
if (checkLaunchState(LaunchState.GeckoRunning))
GeckoAppShell.onResume();
// After an onPause, the activity is back in the foreground.
// Undo whatever we did in onPause.
super.onResume();
// Just in case. Normally we start in onNewIntent
if (checkLaunchState(LaunchState.PreLaunch) ||
checkLaunchState(LaunchState.Launching))
onNewIntent(getIntent());
registerReceiver(mConnectivityReceiver, mConnectivityFilter);
GeckoNetworkManager.getInstance().start();
GeckoScreenOrientationListener.getInstance().start();
}
@Override
public void onStop()
{
Log.i(LOG_FILE_NAME, "stop");
// We're about to be stopped, potentially in preparation for
// being destroyed. We're killable after this point -- as I
// understand it, in extreme cases the process can be terminated
// without going through onDestroy.
//
// We might also get an onRestart after this; not sure what
// that would mean for Gecko if we were to kill it here.
// Instead, what we should do here is save prefs, session,
// etc., and generally mark the profile as 'clean', and then
// dirty it again if we get an onResume.
GeckoAppShell.sendEventToGecko(new GeckoEvent(GeckoEvent.ACTIVITY_STOPPING));
super.onStop();
GeckoAppShell.putChildInBackground();
}
@Override
public void onRestart()
{
Log.i(LOG_FILE_NAME, "restart");
GeckoAppShell.putChildInForeground();
super.onRestart();
}
@Override
public void onStart()
{
Log.i(LOG_FILE_NAME, "start");
GeckoAppShell.sendEventToGecko(new GeckoEvent(GeckoEvent.ACTIVITY_START));
super.onStart();
}
@Override
public void onDestroy()
{
Log.i(LOG_FILE_NAME, "destroy");
// Tell Gecko to shutting down; we'll end up calling System.exit()
// in onXreExit.
if (isFinishing())
GeckoAppShell.sendEventToGecko(new GeckoEvent(GeckoEvent.ACTIVITY_SHUTDOWN));
if (SmsManager.getInstance() != null) {
SmsManager.getInstance().stop();
if (isFinishing())
SmsManager.getInstance().shutdown();
}
GeckoNetworkManager.getInstance().stop();
GeckoScreenOrientationListener.getInstance().stop();
super.onDestroy();
unregisterReceiver(mBatteryReceiver);
}
@Override
public void onConfigurationChanged(android.content.res.Configuration newConfig)
{
Log.i(LOG_FILE_NAME, "configuration changed");
// nothing, just ignore
super.onConfigurationChanged(newConfig);
}
@Override
public void onLowMemory()
{
Log.e(LOG_FILE_NAME, "low memory");
if (checkLaunchState(LaunchState.GeckoRunning))
GeckoAppShell.onLowMemory();
super.onLowMemory();
}
abstract public String getPackageName();
abstract public String getContentProcessName();
protected void unpackComponents()
throws IOException, FileNotFoundException
{
File applicationPackage = new File(getApplication().getPackageResourcePath());
File componentsDir = new File(sGREDir, "components");
if (componentsDir.lastModified() == applicationPackage.lastModified())
return;
componentsDir.mkdir();
componentsDir.setLastModified(applicationPackage.lastModified());
GeckoAppShell.killAnyZombies();
ZipFile zip = new ZipFile(applicationPackage);
byte[] buf = new byte[32768];
try {
if (unpackFile(zip, buf, null, "removed-files"))
removeFiles();
} catch (Exception ex) {
// This file may not be there, so just log any errors and move on
Log.w(LOG_FILE_NAME, "error removing files", ex);
}
// copy any .xpi file into an extensions/ directory
Enumeration<? extends ZipEntry> zipEntries = zip.entries();
while (zipEntries.hasMoreElements()) {
ZipEntry entry = zipEntries.nextElement();
if (entry.getName().startsWith("extensions/") && entry.getName().endsWith(".xpi")) {
Log.i("GeckoAppJava", "installing extension : " + entry.getName());
unpackFile(zip, buf, entry, entry.getName());
}
}
}
void removeFiles() throws IOException {
BufferedReader reader = new BufferedReader(
new FileReader(new File(sGREDir, "removed-files")));
try {
for (String removedFileName = reader.readLine();
removedFileName != null; removedFileName = reader.readLine()) {
File removedFile = new File(sGREDir, removedFileName);
if (removedFile.exists())
removedFile.delete();
}
} finally {
reader.close();
}
}
private boolean unpackFile(ZipFile zip, byte[] buf, ZipEntry fileEntry,
String name)
throws IOException, FileNotFoundException
{
if (fileEntry == null)
fileEntry = zip.getEntry(name);
if (fileEntry == null)
throw new FileNotFoundException("Can't find " + name + " in " +
zip.getName());
File outFile = new File(sGREDir, name);
if (outFile.lastModified() == fileEntry.getTime() &&
outFile.length() == fileEntry.getSize())
return false;
File dir = outFile.getParentFile();
if (!dir.exists())
dir.mkdirs();
InputStream fileStream;
fileStream = zip.getInputStream(fileEntry);
OutputStream outStream = new FileOutputStream(outFile);
while (fileStream.available() > 0) {
int read = fileStream.read(buf, 0, buf.length);
outStream.write(buf, 0, read);
}
fileStream.close();
outStream.close();
outFile.setLastModified(fileEntry.getTime());
return true;
}
public void addEnvToIntent(Intent intent) {
Map<String,String> envMap = System.getenv();
Set<Map.Entry<String,String>> envSet = envMap.entrySet();
Iterator<Map.Entry<String,String>> envIter = envSet.iterator();
int c = 0;
while (envIter.hasNext()) {
Map.Entry<String,String> entry = envIter.next();
intent.putExtra("env" + c, entry.getKey() + "="
+ entry.getValue());
c++;
}
}
public void doRestart() {
try {
String action = "org.mozilla.gecko.restart";
Intent intent = new Intent(action);
intent.setClassName(getPackageName(),
getPackageName() + ".Restarter");
addEnvToIntent(intent);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
Intent.FLAG_ACTIVITY_MULTIPLE_TASK);
Log.i(LOG_FILE_NAME, intent.toString());
GeckoAppShell.killAnyZombies();
startActivity(intent);
} catch (Exception e) {
Log.i(LOG_FILE_NAME, "error doing restart", e);
}
finish();
// Give the restart process time to start before we die
GeckoAppShell.waitForAnotherGeckoProc();
}
public void handleNotification(String action, String alertName, String alertCookie) {
GeckoAppShell.handleNotification(action, alertName, alertCookie);
}
private void checkAndLaunchUpdate() {
Log.i(LOG_FILE_NAME, "Checking for an update");
int statusCode = 8; // UNEXPECTED_ERROR
File baseUpdateDir = null;
if (Build.VERSION.SDK_INT >= 8)
baseUpdateDir = getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS);
else
baseUpdateDir = new File(Environment.getExternalStorageDirectory().getPath(), "download");
File updateDir = new File(new File(baseUpdateDir, "updates"),"0");
File updateFile = new File(updateDir, "update.apk");
File statusFile = new File(updateDir, "update.status");
if (!statusFile.exists() || !readUpdateStatus(statusFile).equals("pending"))
return;
if (!updateFile.exists())
return;
Log.i(LOG_FILE_NAME, "Update is available!");
// Launch APK
File updateFileToRun = new File(updateDir, getPackageName() + "-update.apk");
try {
if (updateFile.renameTo(updateFileToRun)) {
String amCmd = "/system/bin/am start -a android.intent.action.VIEW " +
"-n com.android.packageinstaller/.PackageInstallerActivity -d file://" +
updateFileToRun.getPath();
Log.i(LOG_FILE_NAME, amCmd);
Runtime.getRuntime().exec(amCmd);
statusCode = 0; // OK
} else {
Log.i(LOG_FILE_NAME, "Cannot rename the update file!");
statusCode = 7; // WRITE_ERROR
}
} catch (Exception e) {
Log.i(LOG_FILE_NAME, "error launching installer to update", e);
}
// Update the status file
String status = statusCode == 0 ? "succeeded\n" : "failed: "+ statusCode + "\n";
OutputStream outStream;
try {
byte[] buf = status.getBytes("UTF-8");
outStream = new FileOutputStream(statusFile);
outStream.write(buf, 0, buf.length);
outStream.close();
} catch (Exception e) {
Log.i(LOG_FILE_NAME, "error writing status file", e);
}
if (statusCode == 0)
System.exit(0);
}
private String readUpdateStatus(File statusFile) {
String status = "";
try {
BufferedReader reader = new BufferedReader(new FileReader(statusFile));
status = reader.readLine();
reader.close();
} catch (Exception e) {
Log.i(LOG_FILE_NAME, "error reading update status", e);
}
return status;
}
static final int FILE_PICKER_REQUEST = 1;
private SynchronousQueue<String> mFilePickerResult = new SynchronousQueue();
public String showFilePicker(String aMimeType) {
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType(aMimeType);
GeckoApp.this.
startActivityForResult(
Intent.createChooser(intent, getString(R.string.choose_file)),
FILE_PICKER_REQUEST);
String filePickerResult = "";
try {
while (null == (filePickerResult = mFilePickerResult.poll(1, TimeUnit.MILLISECONDS))) {
Log.i("GeckoApp", "processing events from showFilePicker ");
GeckoAppShell.processNextNativeEvent();
}
} catch (InterruptedException e) {
Log.i(LOG_FILE_NAME, "showing file picker ", e);
}
return filePickerResult;
}
@Override
protected void onActivityResult(int requestCode, int resultCode,
Intent data) {
String filePickerResult = "";
if (data != null && resultCode == RESULT_OK) {
try {
ContentResolver cr = getContentResolver();
Uri uri = data.getData();
Cursor cursor = GeckoApp.mAppContext.getContentResolver().query(
uri,
new String[] { OpenableColumns.DISPLAY_NAME },
null,
null,
null);
String name = null;
if (cursor != null) {
try {
if (cursor.moveToNext()) {
name = cursor.getString(0);
}
} finally {
cursor.close();
}
}
String fileName = "tmp_";
String fileExt = null;
int period;
if (name == null || (period = name.lastIndexOf('.')) == -1) {
String mimeType = cr.getType(uri);
fileExt = "." + GeckoAppShell.getExtensionFromMimeType(mimeType);
} else {
fileExt = name.substring(period);
fileName = name.substring(0, period);
}
File file = File.createTempFile(fileName, fileExt, sGREDir);
FileOutputStream fos = new FileOutputStream(file);
InputStream is = cr.openInputStream(uri);
byte[] buf = new byte[4096];
int len = is.read(buf);
while (len != -1) {
fos.write(buf, 0, len);
len = is.read(buf);
}
fos.close();
filePickerResult = file.getAbsolutePath();
}catch (Exception e) {
Log.e(LOG_FILE_NAME, "showing file picker", e);
}
}
try {
mFilePickerResult.put(filePickerResult);
} catch (InterruptedException e) {
Log.i(LOG_FILE_NAME, "error returning file picker result", e);
}
}
}