Switch Tab to DataController
Bug: 5544674
Change-Id: I24486c65c1cc1fbcf7abe95b74731b10918db82c
diff --git a/src/com/android/browser/DataController.java b/src/com/android/browser/DataController.java
index a56fce8..909c2a3 100644
--- a/src/com/android/browser/DataController.java
+++ b/src/com/android/browser/DataController.java
@@ -23,12 +23,17 @@
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteException;
+import android.graphics.Bitmap;
+import android.net.Uri;
import android.os.Handler;
import android.os.Message;
import android.provider.BrowserContract;
import android.provider.BrowserContract.History;
import android.util.Log;
+import com.android.browser.provider.BrowserProvider2.Thumbnails;
+
+import java.nio.ByteBuffer;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.LinkedBlockingQueue;
@@ -37,12 +42,16 @@
// Message IDs
private static final int HISTORY_UPDATE_VISITED = 100;
private static final int HISTORY_UPDATE_TITLE = 101;
- public static final int QUERY_URL_IS_BOOKMARK = 200;
+ private static final int QUERY_URL_IS_BOOKMARK = 200;
+ private static final int TAB_LOAD_THUMBNAIL = 201;
+ private static final int TAB_SAVE_THUMBNAIL = 202;
+ private static final int TAB_DELETE_THUMBNAIL = 203;
private static DataController sInstance;
private Context mContext;
private DataControllerHandler mDataHandler;
private Handler mCbHandler; // To respond on the UI thread
+ private ByteBuffer mBuffer; // to capture thumbnails
/* package */ static interface OnQueryUrlIsBookmark {
void onQueryUrlIsBookmark(String url, boolean isBookmark);
@@ -72,7 +81,6 @@
private DataController(Context c) {
mContext = c.getApplicationContext();
mDataHandler = new DataControllerHandler();
- mDataHandler.setDaemon(true);
mDataHandler.start();
mCbHandler = new Handler() {
@Override
@@ -108,15 +116,31 @@
mDataHandler.sendMessage(QUERY_URL_IS_BOOKMARK, url.trim(), replyTo);
}
+ public void loadThumbnail(Tab tab) {
+ mDataHandler.sendMessage(TAB_LOAD_THUMBNAIL, tab);
+ }
+
+ public void deleteThumbnail(Tab tab) {
+ mDataHandler.sendMessage(TAB_DELETE_THUMBNAIL, tab.getId());
+ }
+
+ public void saveThumbnail(Tab tab) {
+ mDataHandler.sendMessage(TAB_SAVE_THUMBNAIL, tab);
+ }
+
// The standard Handler and Message classes don't allow the queue manipulation
// we want (such as peeking). So we use our own queue.
class DataControllerHandler extends Thread {
private BlockingQueue<DCMessage> mMessageQueue
= new LinkedBlockingQueue<DCMessage>();
+ public DataControllerHandler() {
+ super("DataControllerHandler");
+ }
+
@Override
public void run() {
- super.run();
+ setPriority(Thread.MIN_PRIORITY);
while (true) {
try {
handleMessage(mMessageQueue.take());
@@ -152,6 +176,67 @@
// multiple callbacks querying the same URL)
doQueryBookmarkStatus((String) msg.obj, msg.replyTo);
break;
+ case TAB_LOAD_THUMBNAIL:
+ doLoadThumbnail((Tab) msg.obj);
+ break;
+ case TAB_DELETE_THUMBNAIL:
+ ContentResolver cr = mContext.getContentResolver();
+ try {
+ cr.delete(ContentUris.withAppendedId(
+ Thumbnails.CONTENT_URI, (Long)msg.obj),
+ null, null);
+ } catch (Throwable t) {}
+ break;
+ case TAB_SAVE_THUMBNAIL:
+ doSaveThumbnail((Tab)msg.obj);
+ break;
+ }
+ }
+
+ private byte[] getCaptureBlob(Tab tab) {
+ synchronized (tab) {
+ Bitmap capture = tab.getScreenshot();
+ if (capture == null) {
+ return null;
+ }
+ if (mBuffer == null || mBuffer.limit() < capture.getByteCount()) {
+ mBuffer = ByteBuffer.allocate(capture.getByteCount());
+ }
+ capture.copyPixelsToBuffer(mBuffer);
+ mBuffer.rewind();
+ return mBuffer.array();
+ }
+ }
+
+ private void doSaveThumbnail(Tab tab) {
+ byte[] blob = getCaptureBlob(tab);
+ if (blob == null) {
+ return;
+ }
+ ContentResolver cr = mContext.getContentResolver();
+ ContentValues values = new ContentValues();
+ values.put(Thumbnails._ID, tab.getId());
+ values.put(Thumbnails.THUMBNAIL, blob);
+ cr.insert(Thumbnails.CONTENT_URI, values);
+ }
+
+ private void doLoadThumbnail(Tab tab) {
+ ContentResolver cr = mContext.getContentResolver();
+ Cursor c = null;
+ try {
+ Uri uri = ContentUris.withAppendedId(Thumbnails.CONTENT_URI, tab.getId());
+ c = cr.query(uri, new String[] {Thumbnails._ID,
+ Thumbnails.THUMBNAIL}, null, null, null);
+ if (c.moveToFirst()) {
+ byte[] data = c.getBlob(1);
+ if (data != null && data.length > 0) {
+ tab.updateCaptureFromBlob(data);
+ }
+ }
+ } finally {
+ if (c != null) {
+ c.close();
+ }
}
}
@@ -184,7 +269,6 @@
}
private void doQueryBookmarkStatus(String url, Object replyTo) {
- ContentResolver cr = mContext.getContentResolver();
// Check to see if the site is bookmarked
Cursor cursor = null;
boolean isBookmark = false;