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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.widget;
import com.android.browser.R;
import android.app.PendingIntent;
import android.appwidget.AppWidgetManager;
import android.content.ComponentName;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Handler;
import android.os.Message;
import android.provider.BrowserContract;
import android.text.TextUtils;
import android.util.Log;
import android.view.View;
import android.widget.RemoteViews;
import android.widget.RemoteViewsService;
import java.util.ArrayList;
import java.util.List;
public class BookmarkStackWidgetService extends RemoteViewsService {
private static final String LOGTAG = "browserwidget";
/** Force the bookmarks to be re-rendered. */
public static final String UPDATE = "com.android.browser.widget.UPDATE";
/** the adapter intent action */
public static final String ADAPTER = "com.android.browser.widget.ADAPTER";
private static final String[] PROJECTION = new String[] {
BrowserContract.Bookmarks._ID,
BrowserContract.Bookmarks.TITLE,
BrowserContract.Bookmarks.URL,
BrowserContract.Bookmarks.THUMBNAIL };
private static final String WHERE_CLAUSE = BrowserContract.Bookmarks.IS_FOLDER +
" == 0";
// No id specified.
private static final int NO_ID = -1;
private static final int MSG_UPDATE = 0;
List<RenderResult> mBookmarks;
private final Handler mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case MSG_UPDATE:
updateWidget();
break;
default:
break;
}
}
};
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
if ((intent == null) || (intent.getAction() != null) && UPDATE.equals(intent.getAction())) {
mHandler.sendEmptyMessage(MSG_UPDATE);
}
return START_STICKY;
}
private void updateWidget() {
RemoteViews views = new RemoteViews(getPackageName(),
R.layout.bookmarkstackwidget);
Intent vi = new Intent(Intent.ACTION_VIEW);
vi.addCategory(Intent.CATEGORY_BROWSABLE);
views.setPendingIntentTemplate(R.id.stackwidget_stack,
PendingIntent.getActivity(BookmarkStackWidgetService.this, 0, vi,
PendingIntent.FLAG_CANCEL_CURRENT));
Intent adapter = new Intent(BookmarkStackWidgetService.ADAPTER, null,
this, BookmarkStackWidgetService.class);
views.setRemoteAdapter(R.id.stackwidget_stack, adapter);
AppWidgetManager.getInstance(this).updateAppWidget(
new ComponentName(this, BookmarkStackWidgetProvider.class),
views);
}
@Override
public RemoteViewsFactory onGetViewFactory(Intent intent) {
return mViewFactory;
}
RemoteViewsService.RemoteViewsFactory mViewFactory = new RemoteViewsFactory () {
Intent mFillIntent;
@Override
public int getCount() {
return mBookmarks.size();
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public RemoteViews getLoadingView() {
return null;
}
@Override
public RemoteViews getViewAt(int position) {
RenderResult res = mBookmarks.get(position);
RemoteViews views = new RemoteViews(getPackageName(),
R.layout.bookmarkstackwidget_item);
mFillIntent.setData(Uri.parse(res.mUrl));
views.setOnClickFillInIntent(R.id.stack_item, mFillIntent);
// Set the title of the bookmark. Use the url as a backup.
String displayTitle = res.mTitle;
if (TextUtils.isEmpty(displayTitle)) {
displayTitle = res.mUrl;
}
views.setTextViewText(R.id.label, displayTitle);
if (res.mBitmap != null) {
views.setImageViewBitmap(R.id.thumb, res.mBitmap);
views.setViewVisibility(R.id.label, View.GONE);
}
return views;
}
@Override
public int getViewTypeCount() {
return 1;
}
@Override
public boolean hasStableIds() {
return false;
}
@Override
public void onCreate() {
mFillIntent = new Intent();
update();
}
@Override
public void onDestroy() {
}
public void update() {
mBookmarks = new ArrayList<RenderResult>();
// Look up all the bookmarks
Cursor c = null;
try {
c = getContentResolver().query(BrowserContract.Bookmarks.CONTENT_URI,
PROJECTION, WHERE_CLAUSE, null, null);
if (c != null) {
while (c.moveToNext()) {
int id = c.getInt(0);
String title = c.getString(1);
String url = c.getString(2);
RenderResult res = new RenderResult(id, title, url);
byte[] blob = c.getBlob(3);
if (blob != null) {
res.mBitmap = BitmapFactory.decodeByteArray(blob, 0, blob.length);
}
mBookmarks.add(res);
}
}
} catch (IllegalStateException e) {
Log.e(LOGTAG, "update bookmark widget", e);
} finally {
if (c != null) {
c.close();
}
}
}
@Override
public void onDataSetChanged() {
}
};
// Class containing the rendering information for a specific bookmark.
private static class RenderResult {
final int mId;
final String mTitle;
final String mUrl;
Bitmap mBitmap;
RenderResult(int id, String title, String url) {
mId = id;
mTitle = title;
mUrl = url;
}
}
}
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