android/playground/app/src/main/java_zxing/com/google/zxing/client/android/share/BookmarkPickerActivity.java

/*
 * Copyright (C) 2008 ZXing authors
 *
 * 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.google.zxing.client.android.share;

import android.app.ListActivity;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.util.Log;
import android.view.View;
import android.widget.ListView;

/**
 * This class is only needed because I can't successfully send an ACTION_PICK intent to
 * com.android.browser.BrowserBookmarksPage. It can go away if that starts working in the future.
 *
 * @author dswitkin@google.com (Daniel Switkin)
 */
public final class BookmarkPickerActivity extends ListActivity {

  private static final String TAG = BookmarkPickerActivity.class.getSimpleName();
  public static final Uri BOOKMARKS_URI = Uri.parse("content://browser/bookmarks");

  private static final String[] BOOKMARK_PROJECTION = {
          BookMarkColumns.TITLE,
      BookMarkColumns.URL
  };

  static final int TITLE_COLUMN = 0;
  static final int URL_COLUMN = 1;

  private static final String BOOKMARK_SELECTION =
          BookMarkColumns.BOOKMARK + " = 1 AND " + BookMarkColumns.URL + " IS NOT NULL";

  private Cursor cursor;

  @Override
  protected void onResume() {
    super.onResume();
    cursor = getContentResolver().query(BOOKMARKS_URI, BOOKMARK_PROJECTION,
            BOOKMARK_SELECTION, null, null);

//    cursor = getContentResolver().query("url", BOOKMARK_PROJECTION,
//        BOOKMARK_SELECTION, null, null);
    if (cursor == null) {
      Log.w(TAG, "No cursor returned for bookmark query");
      finish();
      return;
    }
    setListAdapter(new BookmarkAdapter(this, cursor));
  }
  
  @Override
  protected void onPause() {
    if (cursor != null) {
      cursor.close();
      cursor = null;
    }
    super.onPause();
  }

  @Override
  protected void onListItemClick(ListView l, View view, int position, long id) {
    if (!cursor.isClosed() && cursor.moveToPosition(position)) {
      Intent intent = new Intent();
      intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
      intent.putExtra(BookMarkColumns.TITLE, cursor.getString(TITLE_COLUMN));
      intent.putExtra(BookMarkColumns.URL, cursor.getString(URL_COLUMN));
      setResult(RESULT_OK, intent);
    } else {
      setResult(RESULT_CANCELED);
    }
    finish();
  }
}