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package com.android.gallery3d.filtershow.data;
import android.os.Handler;
import android.os.HandlerThread;
import android.os.Message;
import com.android.gallery3d.R;
import com.android.gallery3d.filtershow.FilterShowActivity;
import com.android.gallery3d.filtershow.filters.FilterUserPresetRepresentation;
import com.android.gallery3d.filtershow.pipeline.ImagePreset;
import java.util.ArrayList;
public class UserPresetsManager implements Handler.Callback {
private static final String LOGTAG = "UserPresetsManager";
private FilterShowActivity mActivity;
private HandlerThread mHandlerThread = null;
private Handler mProcessingHandler = null;
private FilterStackSource mUserPresets;
private static final int LOAD = 1;
private static final int LOAD_RESULT = 2;
private static final int SAVE = 3;
private static final int DELETE = 4;
private static final int UPDATE = 5;
private ArrayList<FilterUserPresetRepresentation> mRepresentations;
private final Handler mResultHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case LOAD_RESULT:
resultLoad(msg);
break;
}
}
};
@Override
public boolean handleMessage(Message msg) {
switch (msg.what) {
case LOAD:
processLoad();
return true;
case SAVE:
processSave(msg);
return true;
case DELETE:
processDelete(msg);
return true;
case UPDATE:
processUpdate(msg);
return true;
}
return false;
}
public UserPresetsManager(FilterShowActivity context) {
mActivity = context;
mHandlerThread = new HandlerThread(LOGTAG,
android.os.Process.THREAD_PRIORITY_BACKGROUND);
mHandlerThread.start();
mProcessingHandler = new Handler(mHandlerThread.getLooper(), this);
mUserPresets = new FilterStackSource(mActivity);
mUserPresets.open();
}
public ArrayList<FilterUserPresetRepresentation> getRepresentations() {
return mRepresentations;
}
public void load() {
Message msg = mProcessingHandler.obtainMessage(LOAD);
mProcessingHandler.sendMessage(msg);
}
public void close() {
mUserPresets.close();
mHandlerThread.quit();
}
static class SaveOperation {
String json;
String name;
}
public void save(ImagePreset preset) {
Message msg = mProcessingHandler.obtainMessage(SAVE);
SaveOperation op = new SaveOperation();
op.json = preset.getJsonString(mActivity.getString(R.string.saved));
op.name= mActivity.getString(R.string.filtershow_new_preset);
msg.obj = op;
mProcessingHandler.sendMessage(msg);
}
public void delete(int id) {
Message msg = mProcessingHandler.obtainMessage(DELETE);
msg.arg1 = id;
mProcessingHandler.sendMessage(msg);
}
static class UpdateOperation {
int id;
String name;
}
public void update(FilterUserPresetRepresentation representation) {
Message msg = mProcessingHandler.obtainMessage(UPDATE);
UpdateOperation op = new UpdateOperation();
op.id = representation.getId();
op.name = representation.getName();
msg.obj = op;
mProcessingHandler.sendMessage(msg);
}
private void processLoad() {
ArrayList<FilterUserPresetRepresentation> list = mUserPresets.getAllUserPresets();
Message msg = mResultHandler.obtainMessage(LOAD_RESULT);
msg.obj = list;
mResultHandler.sendMessage(msg);
}
private void resultLoad(Message msg) {
mRepresentations =
(ArrayList<FilterUserPresetRepresentation>) msg.obj;
mActivity.updateUserPresetsFromManager();
}
private void processSave(Message msg) {
SaveOperation op = (SaveOperation) msg.obj;
mUserPresets.insertStack(op.name, op.json.getBytes());
processLoad();
}
private void processDelete(Message msg) {
int id = msg.arg1;
mUserPresets.removeStack(id);
processLoad();
}
private void processUpdate(Message msg) {
UpdateOperation op = (UpdateOperation) msg.obj;
mUserPresets.updateStackName(op.id, op.name);
processLoad();
}
}
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