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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.browser;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.os.Handler;
import android.os.HandlerThread;
import android.os.Looper;
import android.os.Message;
import android.provider.BrowserContract.History;
public class DataController {
// Message IDs
private static final int HISTORY_UPDATE_VISITED = 100;
private static final int HISTORY_UPDATE_TITLE = 101;
private static DataController sInstance;
private Context mContext;
private Handler mHandler;
/* package */ static DataController getInstance(Context c) {
if (sInstance == null) {
sInstance = new DataController(c);
}
return sInstance;
}
private DataController(Context c) {
mContext = c.getApplicationContext();
HandlerThread thread = new HandlerThread("DataController");
thread.setDaemon(true);
thread.start();
mHandler = new DataControllerHandler(thread.getLooper());
}
public void updateVisitedHistory(String url) {
mHandler.obtainMessage(HISTORY_UPDATE_VISITED, url).sendToTarget();
}
public void updateHistoryTitle(String url, String title) {
mHandler.obtainMessage(HISTORY_UPDATE_TITLE, new String[] { url, title })
.sendToTarget();
}
class DataControllerHandler extends Handler {
public DataControllerHandler(Looper looper) {
super(looper);
}
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case HISTORY_UPDATE_VISITED:
doUpdateVisitedHistory((String) msg.obj);
break;
case HISTORY_UPDATE_TITLE:
String[] args = (String[]) msg.obj;
doUpdateHistoryTitle(args[0], args[1]);
break;
}
}
}
private void doUpdateVisitedHistory(String url) {
ContentResolver cr = mContext.getContentResolver();
Cursor c = null;
try {
c = cr.query(History.CONTENT_URI, new String[] { History._ID, History.VISITS },
History.URL + "=?", new String[] { url }, null);
if (c.moveToFirst()) {
ContentValues values = new ContentValues();
values.put(History.VISITS, c.getInt(1) + 1);
values.put(History.DATE_LAST_VISITED, System.currentTimeMillis());
cr.update(ContentUris.withAppendedId(History.CONTENT_URI, c.getLong(0)),
values, null, null);
} else {
android.provider.Browser.truncateHistory(cr);
ContentValues values = new ContentValues();
values.put(History.URL, url);
values.put(History.VISITS, 1);
values.put(History.DATE_LAST_VISITED, System.currentTimeMillis());
values.put(History.TITLE, url);
values.put(History.DATE_CREATED, 0);
values.put(History.USER_ENTERED, 0);
cr.insert(History.CONTENT_URI, values);
}
} finally {
if (c != null) c.close();
}
}
private void doUpdateHistoryTitle(String url, String title) {
ContentResolver cr = mContext.getContentResolver();
ContentValues values = new ContentValues();
values.put(History.TITLE, title);
cr.update(History.CONTENT_URI, values, History.URL + "=?",
new String[] { url });
}
}
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