| /* |
| * Copyright (C) 2009 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.app.Activity; |
| import android.app.ListActivity; |
| import android.content.Intent; |
| import android.database.ContentObserver; |
| import android.database.Cursor; |
| import android.database.DataSetObserver; |
| import android.graphics.Bitmap; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.provider.Browser; |
| import android.webkit.WebIconDatabase.IconListener; |
| import android.widget.ListAdapter; |
| import android.widget.ListView; |
| import android.widget.SimpleCursorAdapter; |
| import android.widget.TextView; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.view.ViewGroup.LayoutParams; |
| |
| import java.util.Vector; |
| |
| public class MostVisitedActivity extends ListActivity { |
| |
| private MyAdapter mAdapter; |
| |
| // Instance of IconReceiver |
| private final IconReceiver mIconReceiver = new IconReceiver(); |
| |
| @Override |
| public void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| mAdapter = new MyAdapter(); |
| CombinedBookmarkHistoryActivity.getIconListenerSet(getContentResolver()) |
| .addListener(mIconReceiver); |
| setListAdapter(mAdapter); |
| ListView list = getListView(); |
| LayoutInflater factory = LayoutInflater.from(this); |
| View v = factory.inflate(R.layout.empty_history, null); |
| addContentView(v, new LayoutParams(LayoutParams.FILL_PARENT, |
| LayoutParams.FILL_PARENT)); |
| list.setEmptyView(v); |
| } |
| |
| @Override |
| protected void onDestroy() { |
| super.onDestroy(); |
| CombinedBookmarkHistoryActivity.getIconListenerSet(getContentResolver()) |
| .removeListener(mIconReceiver); |
| } |
| |
| private class IconReceiver implements IconListener { |
| public void onReceivedIcon(String url, Bitmap icon) { |
| setListAdapter(mAdapter); |
| } |
| } |
| |
| protected void onListItemClick(ListView l, View v, int position, long id) { |
| TextView tv = (TextView) v.findViewById(R.id.url); |
| String url = tv.getText().toString(); |
| loadUrl(url, false); |
| } |
| |
| private void loadUrl(String url, boolean newWindow) { |
| Intent intent = new Intent().setAction(url); |
| if (newWindow) { |
| Bundle b = new Bundle(); |
| b.putBoolean("new_window", true); |
| intent.putExtras(b); |
| } |
| setResultToParent(RESULT_OK, intent); |
| finish(); |
| } |
| |
| private class MyAdapter implements ListAdapter { |
| private Vector<DataSetObserver> mObservers; |
| private Cursor mCursor; |
| // These correspond with projection below. |
| private final int mUrlIndex = 0; |
| private final int mTitleIndex = 1; |
| private final int mBookmarkIndex = 2; |
| |
| MyAdapter() { |
| mObservers = new Vector<DataSetObserver>(); |
| String[] projection = new String[] { |
| Browser.BookmarkColumns.URL, |
| Browser.BookmarkColumns.TITLE, |
| Browser.BookmarkColumns.BOOKMARK }; |
| String whereClause = Browser.BookmarkColumns.VISITS + " != 0"; |
| String orderBy = Browser.BookmarkColumns.VISITS + " DESC"; |
| mCursor = managedQuery(Browser.BOOKMARKS_URI, projection, |
| whereClause, null, orderBy); |
| mCursor.registerContentObserver(new ChangeObserver()); |
| } |
| |
| private class ChangeObserver extends ContentObserver { |
| public ChangeObserver() { |
| super(new Handler()); |
| } |
| |
| @Override |
| public boolean deliverSelfNotifications() { |
| return true; |
| } |
| |
| @Override |
| public void onChange(boolean selfChange) { |
| MyAdapter.this.refreshData(); |
| } |
| } |
| |
| void refreshData() { |
| mCursor.requery(); |
| for (DataSetObserver o : mObservers) { |
| o.onChanged(); |
| } |
| } |
| |
| public View getView(int position, View convertView, ViewGroup parent) { |
| HistoryItem item; |
| if (null == convertView) { |
| item = new HistoryItem(MostVisitedActivity.this); |
| } else { |
| item = (HistoryItem) convertView; |
| } |
| mCursor.moveToPosition(position); |
| item.setName(mCursor.getString(mTitleIndex)); |
| String url = mCursor.getString(mUrlIndex); |
| item.setUrl(url); |
| item.setFavicon(CombinedBookmarkHistoryActivity.getIconListenerSet( |
| getContentResolver()).getFavicon(url)); |
| item.setIsBookmark(1 == mCursor.getInt(mBookmarkIndex)); |
| return item; |
| } |
| |
| public boolean areAllItemsEnabled() { |
| return true; |
| } |
| |
| public boolean isEnabled(int position) { |
| return true; |
| } |
| |
| public int getCount() { |
| return mCursor.getCount(); |
| } |
| |
| public Object getItem(int position) { |
| return null; |
| } |
| |
| public long getItemId(int position) { |
| return position; |
| } |
| |
| // Always a HistoryItem |
| public int getItemViewType(int position) { |
| return 0; |
| } |
| |
| public int getViewTypeCount() { |
| return 1; |
| } |
| |
| public boolean hasStableIds() { |
| return true; |
| } |
| |
| public void registerDataSetObserver(DataSetObserver observer) { |
| mObservers.add(observer); |
| } |
| |
| public void unregisterDataSetObserver(DataSetObserver observer) { |
| mObservers.remove(observer); |
| } |
| |
| public boolean isEmpty() { |
| return getCount() == 0; |
| } |
| } |
| |
| // This Activity is generally a sub-Activity of CombinedHistoryActivity. In |
| // that situation, we need to pass our result code up to our parent. |
| // However, if someone calls this Activity directly, then this has no |
| // parent, and it needs to set it on itself. |
| private void setResultToParent(int resultCode, Intent data) { |
| Activity a = getParent() == null ? this : getParent(); |
| a.setResult(resultCode, data); |
| } |
| } |
| |