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Allow multiple EmailServiceCallbacks in SyncManager

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* This change will be needed with new Attachment download
  management

Change-Id: Ic18e16bd5adf9d77305ea5e029aa7a653cf5c2b0
This commit is contained in:
Marc Blank 2010-08-10 12:58:01 -07:00
parent 1b156352f3
commit c4de16b4ff
1 changed files with 59 additions and 30 deletions
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89
src/com/android/exchange/SyncManager.java
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@ -231,50 +231,83 @@ public class SyncManager extends Service implements Runnable {
private ConnectivityReceiver mBackgroundDataSettingReceiver = null;
private volatile boolean mBackgroundData = true;
// The callback sent in from the UI using setCallback
private IEmailServiceCallback mCallback;
// Callbacks as set up via setCallback
private RemoteCallbackList<IEmailServiceCallback> mCallbackList =
new RemoteCallbackList<IEmailServiceCallback>();
private interface ServiceCallbackWrapper {
public void call(IEmailServiceCallback cb) throws RemoteException;
}
/**
* Proxy that can be used by various sync adapters to tie into SyncManager's callback system.
* Used this way: SyncManager.callback().callbackMethod(args...);
* The proxy wraps checking for existence of a SyncManager instance and an active callback.
* The proxy wraps checking for existence of a SyncManager instance
* Failures of these callbacks can be safely ignored.
*/
static private final IEmailServiceCallback.Stub sCallbackProxy =
new IEmailServiceCallback.Stub() {
public void loadAttachmentStatus(long messageId, long attachmentId, int statusCode,
int progress) throws RemoteException {
IEmailServiceCallback cb = INSTANCE == null ? null: INSTANCE.mCallback;
if (cb != null) {
cb.loadAttachmentStatus(messageId, attachmentId, statusCode, progress);
/**
* Broadcast a callback to the everyone that's registered
*
* @param wrapper the ServiceCallbackWrapper used in the broadcast
*/
private synchronized void broadcastCallback(ServiceCallbackWrapper wrapper) {
RemoteCallbackList<IEmailServiceCallback> callbackList =
(INSTANCE == null) ? null: INSTANCE.mCallbackList;
if (callbackList != null) {
// Call everyone on our callback list
// Exceptions can be safely ignored
int count = callbackList.beginBroadcast();
for (int i = 0; i < count; i++) {
try {
wrapper.call(callbackList.getBroadcastItem(i));
} catch (RemoteException e) {
}
}
callbackList.finishBroadcast();
}
}
public void sendMessageStatus(long messageId, String subject, int statusCode, int progress)
throws RemoteException {
IEmailServiceCallback cb = INSTANCE == null ? null: INSTANCE.mCallback;
if (cb != null) {
cb.sendMessageStatus(messageId, subject, statusCode, progress);
}
public void loadAttachmentStatus(final long messageId, final long attachmentId,
final int status, final int progress) {
broadcastCallback(new ServiceCallbackWrapper() {
@Override
public void call(IEmailServiceCallback cb) throws RemoteException {
cb.loadAttachmentStatus(messageId, attachmentId, status, progress);
}
});
}
public void syncMailboxListStatus(long accountId, int statusCode, int progress)
throws RemoteException {
IEmailServiceCallback cb = INSTANCE == null ? null: INSTANCE.mCallback;
if (cb != null) {
cb.syncMailboxListStatus(accountId, statusCode, progress);
}
public void sendMessageStatus(final long messageId, final String subject, final int status,
final int progress) {
broadcastCallback(new ServiceCallbackWrapper() {
@Override
public void call(IEmailServiceCallback cb) throws RemoteException {
cb.sendMessageStatus(messageId, subject, status, progress);
}
});
}
public void syncMailboxStatus(long mailboxId, int statusCode, int progress)
throws RemoteException {
IEmailServiceCallback cb = INSTANCE == null ? null: INSTANCE.mCallback;
if (cb != null) {
cb.syncMailboxStatus(mailboxId, statusCode, progress);
}
public void syncMailboxListStatus(final long accountId, final int status,
final int progress) {
broadcastCallback(new ServiceCallbackWrapper() {
@Override
public void call(IEmailServiceCallback cb) throws RemoteException {
cb.syncMailboxListStatus(accountId, status, progress);
}
});
}
public void syncMailboxStatus(final long mailboxId, final int status,
final int progress) {
broadcastCallback(new ServiceCallbackWrapper() {
@Override
public void call(IEmailServiceCallback cb) throws RemoteException {
cb.syncMailboxStatus(mailboxId, status, progress);
}
});
}
};
@ -389,10 +422,6 @@ public class SyncManager extends Service implements Runnable {
}
public void setCallback(IEmailServiceCallback cb) throws RemoteException {
if (mCallback != null) {
mCallbackList.unregister(mCallback);
}
mCallback = cb;
mCallbackList.register(cb);
}
};