ShortcutPromoter.java revision 3e44ff1f2a204db3f479698cf0b3eab3d451dec2 
1/*
2 * Copyright (C) 2009 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.quicksearchbox;
18
19import android.util.Log;
20
21import java.util.ArrayList;
22
23/**
24 * A promoter that first promotes any shortcuts, and then delegates to another
25 * promoter.
26 *
27 */
28public class ShortcutPromoter implements Promoter {
29
30    private static final String TAG = "QSB.ShortcutPromoter";
31    private static final boolean DBG = true;
32
33    /** The promoter to use when there are no more shortcuts. */
34    private final Promoter mNextPromoter;
35
36    /**
37     * Creates a new ShortcutPromoter.
38     *
39     * @param nextPromoter The promoter to use when there are no more shortcuts.
40     *        May be {@code null}.
41     */
42    public ShortcutPromoter(Promoter nextPromoter) {
43        mNextPromoter = nextPromoter;
44    }
45
46    public void pickPromoted(SuggestionCursor shortcuts,
47            ArrayList<SuggestionCursor> suggestions, int maxPromoted,
48            ListSuggestionCursor promoted) {
49        int shortcutCount = shortcuts == null ? 0 : shortcuts.getCount();
50        int promotedShortcutCount = Math.min(shortcutCount, maxPromoted);
51        if (DBG) {
52            Log.d(TAG, "pickPromoted(shortcutCount = " + shortcutCount +
53                    ", maxPromoted = " + maxPromoted + ")");
54        }
55
56        for (int i = 0; i < promotedShortcutCount; i++) {
57            promoted.add(new SuggestionPosition(shortcuts, i));
58        }
59
60        if (promoted.getCount() < maxPromoted && mNextPromoter != null) {
61            mNextPromoter.pickPromoted(null, suggestions, maxPromoted, promoted);
62        }
63    }
64
65}
66