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-rw-r--r--mobile/android/base/java/org/mozilla/gecko/javaaddons/JavaAddonManagerV1.java260
1 files changed, 0 insertions, 260 deletions
diff --git a/mobile/android/base/java/org/mozilla/gecko/javaaddons/JavaAddonManagerV1.java b/mobile/android/base/java/org/mozilla/gecko/javaaddons/JavaAddonManagerV1.java
deleted file mode 100644
index f361773ca..000000000
--- a/mobile/android/base/java/org/mozilla/gecko/javaaddons/JavaAddonManagerV1.java
+++ /dev/null
@@ -1,260 +0,0 @@
-/* -*- Mode: Java; c-basic-offset: 4; tab-width: 4; 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.javaaddons;
-
-import android.content.Context;
-import android.util.Log;
-import android.util.Pair;
-import dalvik.system.DexClassLoader;
-import org.json.JSONException;
-import org.json.JSONObject;
-import org.mozilla.gecko.GeckoAppShell;
-import org.mozilla.gecko.sync.Utils;
-import org.mozilla.gecko.util.GeckoJarReader;
-import org.mozilla.gecko.util.GeckoRequest;
-import org.mozilla.gecko.util.NativeEventListener;
-import org.mozilla.gecko.util.NativeJSObject;
-import org.mozilla.javaaddons.JavaAddonInterfaceV1;
-
-import java.io.File;
-import java.io.IOException;
-import java.lang.reflect.Constructor;
-import java.lang.reflect.InvocationTargetException;
-import java.util.HashMap;
-import java.util.IdentityHashMap;
-import java.util.Map;
-
-public class JavaAddonManagerV1 implements NativeEventListener {
- private static final String LOGTAG = "GeckoJavaAddonMgrV1";
- public static final String MESSAGE_LOAD = "JavaAddonManagerV1:Load";
- public static final String MESSAGE_UNLOAD = "JavaAddonManagerV1:Unload";
-
- private static JavaAddonManagerV1 sInstance;
-
- // Protected by static synchronized.
- private Context mApplicationContext;
-
- private final org.mozilla.gecko.EventDispatcher mDispatcher;
-
- // Protected by synchronized (this).
- private final Map<String, EventDispatcherImpl> mGUIDToDispatcherMap = new HashMap<>();
-
- public static synchronized JavaAddonManagerV1 getInstance() {
- if (sInstance == null) {
- sInstance = new JavaAddonManagerV1();
- }
- return sInstance;
- }
-
- private JavaAddonManagerV1() {
- mDispatcher = org.mozilla.gecko.EventDispatcher.getInstance();
- }
-
- public synchronized void init(Context applicationContext) {
- if (mApplicationContext != null) {
- // We've already registered; don't register again.
- return;
- }
- mApplicationContext = applicationContext;
- mDispatcher.registerGeckoThreadListener(this,
- MESSAGE_LOAD,
- MESSAGE_UNLOAD);
- }
-
- protected String getExtension(String filename) {
- if (filename == null) {
- return "";
- }
- final int last = filename.lastIndexOf(".");
- if (last < 0) {
- return "";
- }
- return filename.substring(last);
- }
-
- protected synchronized EventDispatcherImpl registerNewInstance(String classname, String filename)
- throws ClassNotFoundException, InstantiationException, IllegalAccessException, InvocationTargetException, NoSuchMethodException, IOException {
- Log.d(LOGTAG, "Attempting to instantiate " + classname + "from filename " + filename);
-
- // It's important to maintain the extension, either .dex, .apk, .jar.
- final String extension = getExtension(filename);
- final File dexFile = GeckoJarReader.extractStream(mApplicationContext, filename, mApplicationContext.getCacheDir(), "." + extension);
- try {
- if (dexFile == null) {
- throw new IOException("Could not find file " + filename);
- }
- final File tmpDir = mApplicationContext.getDir("dex", 0); // We'd prefer getCodeCacheDir but it's API 21+.
- final DexClassLoader loader = new DexClassLoader(dexFile.getAbsolutePath(), tmpDir.getAbsolutePath(), null, mApplicationContext.getClassLoader());
- final Class<?> c = loader.loadClass(classname);
- final Constructor<?> constructor = c.getDeclaredConstructor(Context.class, JavaAddonInterfaceV1.EventDispatcher.class);
- final String guid = Utils.generateGuid();
- final EventDispatcherImpl dispatcher = new EventDispatcherImpl(guid, filename);
- final Object instance = constructor.newInstance(mApplicationContext, dispatcher);
- mGUIDToDispatcherMap.put(guid, dispatcher);
- return dispatcher;
- } finally {
- // DexClassLoader writes an optimized version, so we can get rid of our temporary extracted version.
- if (dexFile != null) {
- dexFile.delete();
- }
- }
- }
-
- @Override
- public synchronized void handleMessage(String event, NativeJSObject message, org.mozilla.gecko.util.EventCallback callback) {
- try {
- switch (event) {
- case MESSAGE_LOAD: {
- if (callback == null) {
- throw new IllegalArgumentException("callback must not be null");
- }
- final String classname = message.getString("classname");
- final String filename = message.getString("filename");
- final EventDispatcherImpl dispatcher = registerNewInstance(classname, filename);
- callback.sendSuccess(dispatcher.guid);
- }
- break;
- case MESSAGE_UNLOAD: {
- if (callback == null) {
- throw new IllegalArgumentException("callback must not be null");
- }
- final String guid = message.getString("guid");
- final EventDispatcherImpl dispatcher = mGUIDToDispatcherMap.remove(guid);
- if (dispatcher == null) {
- Log.w(LOGTAG, "Attempting to unload addon with unknown associated dispatcher; ignoring.");
- callback.sendSuccess(false);
- }
- dispatcher.unregisterAllEventListeners();
- callback.sendSuccess(true);
- }
- break;
- }
- } catch (Exception e) {
- Log.e(LOGTAG, "Exception handling message [" + event + "]", e);
- if (callback != null) {
- callback.sendError("Exception handling message [" + event + "]: " + e.toString());
- }
- }
- }
-
- /**
- * An event dispatcher is tied to a single Java Addon instance. It serves to prefix all
- * messages with its unique GUID.
- * <p/>
- * Curiously, the dispatcher does not hold a direct reference to its add-on instance. It will
- * likely hold indirect instances through its wrapping map, since the instance will probably
- * register event listeners that hold a reference to itself. When these listeners are
- * unregistered, any link will be broken, allowing the instances to be garbage collected.
- */
- private class EventDispatcherImpl implements JavaAddonInterfaceV1.EventDispatcher {
- private final String guid;
- private final String dexFileName;
-
- // Protected by synchronized (this).
- private final Map<JavaAddonInterfaceV1.EventListener, Pair<NativeEventListener, String[]>> mListenerToWrapperMap = new IdentityHashMap<>();
-
- public EventDispatcherImpl(String guid, String dexFileName) {
- this.guid = guid;
- this.dexFileName = dexFileName;
- }
-
- protected class ListenerWrapper implements NativeEventListener {
- private final JavaAddonInterfaceV1.EventListener listener;
-
- public ListenerWrapper(JavaAddonInterfaceV1.EventListener listener) {
- this.listener = listener;
- }
-
- @Override
- public void handleMessage(String prefixedEvent, NativeJSObject message, final org.mozilla.gecko.util.EventCallback callback) {
- if (!prefixedEvent.startsWith(guid + ":")) {
- return;
- }
- final String event = prefixedEvent.substring(guid.length() + 1); // Skip "guid:".
- try {
- JavaAddonInterfaceV1.EventCallback callbackAdapter = null;
- if (callback != null) {
- callbackAdapter = new JavaAddonInterfaceV1.EventCallback() {
- @Override
- public void sendSuccess(Object response) {
- callback.sendSuccess(response);
- }
-
- @Override
- public void sendError(Object response) {
- callback.sendError(response);
- }
- };
- }
- final JSONObject json = new JSONObject(message.toString());
- listener.handleMessage(mApplicationContext, event, json, callbackAdapter);
- } catch (Exception e) {
- Log.e(LOGTAG, "Exception handling message [" + prefixedEvent + "]", e);
- if (callback != null) {
- callback.sendError("Got exception handling message [" + prefixedEvent + "]: " + e.toString());
- }
- }
- }
- }
-
- @Override
- public synchronized void registerEventListener(final JavaAddonInterfaceV1.EventListener listener, String... events) {
- if (mListenerToWrapperMap.containsKey(listener)) {
- Log.e(LOGTAG, "Attempting to register listener which is already registered; ignoring.");
- return;
- }
-
- final NativeEventListener listenerWrapper = new ListenerWrapper(listener);
-
- final String[] prefixedEvents = new String[events.length];
- for (int i = 0; i < events.length; i++) {
- prefixedEvents[i] = this.guid + ":" + events[i];
- }
- mDispatcher.registerGeckoThreadListener(listenerWrapper, prefixedEvents);
- mListenerToWrapperMap.put(listener, new Pair<>(listenerWrapper, prefixedEvents));
- }
-
- @Override
- public synchronized void unregisterEventListener(final JavaAddonInterfaceV1.EventListener listener) {
- final Pair<NativeEventListener, String[]> pair = mListenerToWrapperMap.remove(listener);
- if (pair == null) {
- Log.e(LOGTAG, "Attempting to unregister listener which is not registered; ignoring.");
- return;
- }
- mDispatcher.unregisterGeckoThreadListener(pair.first, pair.second);
- }
-
-
- protected synchronized void unregisterAllEventListeners() {
- // Unregister everything, then forget everything.
- for (Pair<NativeEventListener, String[]> pair : mListenerToWrapperMap.values()) {
- mDispatcher.unregisterGeckoThreadListener(pair.first, pair.second);
- }
- mListenerToWrapperMap.clear();
- }
-
- @Override
- public void sendRequestToGecko(final String event, final JSONObject message, final JavaAddonInterfaceV1.RequestCallback callback) {
- final String prefixedEvent = guid + ":" + event;
- GeckoAppShell.sendRequestToGecko(new GeckoRequest(prefixedEvent, message) {
- @Override
- public void onResponse(NativeJSObject nativeJSObject) {
- if (callback == null) {
- // Nothing to do.
- return;
- }
- try {
- final JSONObject json = new JSONObject(nativeJSObject.toString());
- callback.onResponse(GeckoAppShell.getContext(), json);
- } catch (JSONException e) {
- // No way to report failure.
- Log.e(LOGTAG, "Exception handling response to request [" + event + "]:", e);
- }
- }
- });
- }
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-17 12:16:40 +0000