/*******************************************************************************
* This file is part of Zandy.
*
* Zandy is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Zandy is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Zandy. If not, see <http://www.gnu.org/licenses/>.
******************************************************************************/
package com.gimranov.zandy.app;
import android.app.ListActivity;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.AdapterView.OnItemLongClickListener;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import com.gimranov.zandy.app.data.CollectionAdapter;
import com.gimranov.zandy.app.data.Database;
import com.gimranov.zandy.app.data.ItemCollection;
import com.gimranov.zandy.app.task.APIEvent;
import com.gimranov.zandy.app.task.APIRequest;
import com.gimranov.zandy.app.task.ZoteroAPITask;
public class CollectionActivity extends ListActivity {
private static final String TAG = "com.gimranov.zandy.app.CollectionActivity";
private ItemCollection collection;
private Database db;
final Handler handler = new Handler() {
public void handleMessage(Message msg) {
Log.d(TAG,"received message: "+msg.arg1);
refreshView();
if (msg.arg1 == APIRequest.UPDATED_DATA) {
//refreshView();
return;
}
if (msg.arg1 == APIRequest.QUEUED_MORE) {
Toast.makeText(getApplicationContext(),
getResources().getString(R.string.sync_queued_more, msg.arg2),
Toast.LENGTH_SHORT).show();
return;
}
if (msg.arg1 == APIRequest.BATCH_DONE) {
Application.getInstance().getBus().post(SyncEvent.COMPLETE);
Toast.makeText(getApplicationContext(),
getResources().getString(R.string.sync_complete),
Toast.LENGTH_SHORT).show();
return;
}
if (msg.arg1 == APIRequest.ERROR_UNKNOWN) {
String desc = (msg.arg2 == 0) ? "" : " ("+msg.arg2+")";
Toast.makeText(getApplicationContext(),
getResources().getString(R.string.sync_error)+desc,
Toast.LENGTH_SHORT).show();
return;
}
}
};
/**
* Refreshes the current list adapter
*/
private void refreshView() {
CollectionAdapter adapter = (CollectionAdapter) getListAdapter();
Cursor newCursor = (collection == null) ? create() : create(collection);
adapter.changeCursor(newCursor);
adapter.notifyDataSetChanged();
Log.d(TAG, "refreshing view on request");
}
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
db = new Database(this);
setContentView(R.layout.collections);
CollectionAdapter collectionAdapter;
String collectionKey = getIntent().getStringExtra("com.gimranov.zandy.app.collectionKey");
if (collectionKey != null) {
ItemCollection coll = ItemCollection.load(collectionKey, db);
// We set the title to the current collection
this.collection = coll;
this.setTitle(coll.getTitle());
collectionAdapter = new CollectionAdapter(this, create(coll));
} else {
this.setTitle(getResources().getString(R.string.collections));
collectionAdapter = new CollectionAdapter(this, create());
}
setListAdapter(collectionAdapter);
ListView lv = getListView();
lv.setOnItemLongClickListener(new OnItemLongClickListener() {
public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
CollectionAdapter adapter = (CollectionAdapter) parent.getAdapter();
Cursor cur = adapter.getCursor();
// Place the cursor at the selected item
if (cur.moveToPosition(position)) {
// and open activity for the selected collection
ItemCollection coll = ItemCollection.load(cur);
if (coll != null && coll.getKey() != null && coll.getSubcollections(db).size() > 0) {
Log.d(TAG, "Loading child collection with key: "+coll.getKey());
// We create and issue a specified intent with the necessary data
Intent i = new Intent(getBaseContext(), CollectionActivity.class);
i.putExtra("com.gimranov.zandy.app.collectionKey", coll.getKey());
startActivity(i);
} else {
Log.d(TAG, "Failed loading child collections for collection");
Toast.makeText(getApplicationContext(),
getResources().getString(R.string.collection_no_subcollections),
Toast.LENGTH_SHORT).show();
}
} else {
// failed to move cursor-- show a toast
TextView tvTitle = (TextView)view.findViewById(R.id.collection_title);
Toast.makeText(getApplicationContext(),
getResources().getString(R.string.collection_cant_open, tvTitle.getText()),
Toast.LENGTH_SHORT).show();
}
return true;
}
});
lv.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
CollectionAdapter adapter = (CollectionAdapter) parent.getAdapter();
Cursor cur = adapter.getCursor();
// Place the cursor at the selected item
if (cur.moveToPosition(position)) {
// and replace the cursor with one for the selected collection
ItemCollection coll = ItemCollection.load(cur);
if (coll != null && coll.getKey() != null) {
Intent i = new Intent(getBaseContext(), ItemActivity.class);
if (coll.getSize() == 0) {
// Send a message that we need to refresh the collection
i.putExtra("com.gimranov.zandy.app.rerequest", true);
}
i.putExtra("com.gimranov.zandy.app.collectionKey", coll.getKey());
startActivity(i);
} else {
// collection loaded was null. why?
Log.d(TAG, "Failed loading items for collection at position: "+position);
return;
}
} else {
// failed to move cursor-- show a toast
TextView tvTitle = (TextView)view.findViewById(R.id.collection_title);
Toast.makeText(getApplicationContext(),
getResources().getString(R.string.collection_cant_open, tvTitle.getText()),
Toast.LENGTH_SHORT).show();
return;
}
return;
}
});
}
protected void onResume() {
CollectionAdapter adapter = (CollectionAdapter) getListAdapter();
// XXX This may be too agressive-- fix if causes issues
Cursor newCursor = (collection == null) ? create() : create(collection);
adapter.changeCursor(newCursor);
adapter.notifyDataSetChanged();
if (db == null) db = new Database(this);
super.onResume();
}
public void onDestroy() {
CollectionAdapter adapter = (CollectionAdapter) getListAdapter();
Cursor cur = adapter.getCursor();
if(cur != null) cur.close();
if (db != null) db.close();
super.onDestroy();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.zotero_menu, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle item selection
switch (item.getItemId()) {
case R.id.do_sync:
if (!ServerCredentials.check(getApplicationContext())) {
Toast.makeText(getApplicationContext(), getResources().getString(R.string.sync_log_in_first),
Toast.LENGTH_SHORT).show();
return true;
}
APIRequest req = APIRequest.fetchCollections(new ServerCredentials(getApplicationContext()));
req.setHandler(new APIEvent() {
private int updates = 0;
@Override
public void onComplete(APIRequest request) {
Message msg = handler.obtainMessage();
msg.arg1 = APIRequest.BATCH_DONE;
handler.sendMessage(msg);
Log.d(TAG, "fired oncomplete");
}
@Override
public void onUpdate(APIRequest request) {
updates++;
Message msg = handler.obtainMessage();
msg.arg1 = APIRequest.UPDATED_DATA;
handler.sendMessage(msg);
}
@Override
public void onError(APIRequest request, Exception exception) {
Log.e(TAG, "APIException caught", exception);
Message msg = handler.obtainMessage();
msg.arg1 = APIRequest.ERROR_UNKNOWN;
handler.sendMessage(msg);
}
@Override
public void onError(APIRequest request, int error) {
Log.e(TAG, "API error caught");
Message msg = handler.obtainMessage();
msg.arg1 = APIRequest.ERROR_UNKNOWN;
msg.arg2 = request.status;
handler.sendMessage(msg);
}
});
ZoteroAPITask task = new ZoteroAPITask(getBaseContext());
task.setHandler(handler);
task.execute(req);
Toast.makeText(getApplicationContext(), getResources().getString(R.string.sync_collection),
Toast.LENGTH_SHORT).show();
return true;
case R.id.do_new:
Log.d(TAG, "Can't yet make new collections");
// XXX no i18n for temporary string
Toast.makeText(getApplicationContext(), "Sorry, new collection creation is not yet possible. Soon!",
Toast.LENGTH_SHORT).show();
return true;
case R.id.do_prefs:
startActivity(new Intent(this, SettingsActivity.class));
return true;
default:
return super.onOptionsItemSelected(item);
}
}
/**
* Gives a cursor for top-level collections
* @return
*/
public Cursor create() {
String[] args = { "false" };
Cursor cursor = db.query("collections", Database.COLLCOLS, "collection_parent=?", args, null, null, "collection_name", null);
if (cursor == null) {
Log.e(TAG, "cursor is null");
}
return cursor;
}
/**
* Gives a cursor for child collections of a given parent
* @param parent
* @return
*/
public Cursor create(ItemCollection parent) {
String[] args = { parent.getKey() };
Cursor cursor = db.query("collections", Database.COLLCOLS, "collection_parent=?", args, null, null, "collection_name", null);
if (cursor == null) {
Log.e(TAG, "cursor is null");
}
return cursor;
}
}