1/*
2 * Copyright (C) 2008 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.settings;
18
19import android.content.Context;
20import android.preference.Preference;
21import android.util.AttributeSet;
22import android.view.View;
23
24public class ProgressCategory extends ProgressCategoryBase {
25
26    private final int mEmptyTextRes;
27    private boolean mProgress = false;
28    private Preference mNoDeviceFoundPreference;
29    private boolean mNoDeviceFoundAdded;
30
31    public ProgressCategory(Context context, AttributeSet attrs,
32            int emptyTextRes) {
33        super(context, attrs);
34        setLayoutResource(R.layout.preference_progress_category);
35        mEmptyTextRes = emptyTextRes;
36    }
37
38    @Override
39    public void onBindView(View view) {
40        super.onBindView(view);
41        final View progressBar = view.findViewById(R.id.scanning_progress);
42
43        boolean noDeviceFound = (getPreferenceCount() == 0 ||
44                (getPreferenceCount() == 1 && getPreference(0) == mNoDeviceFoundPreference));
45        progressBar.setVisibility(mProgress ? View.VISIBLE : View.GONE);
46
47        if (mProgress || !noDeviceFound) {
48            if (mNoDeviceFoundAdded) {
49                removePreference(mNoDeviceFoundPreference);
50                mNoDeviceFoundAdded = false;
51            }
52        } else {
53            if (!mNoDeviceFoundAdded) {
54                if (mNoDeviceFoundPreference == null) {
55                    mNoDeviceFoundPreference = new Preference(getContext());
56                    mNoDeviceFoundPreference.setLayoutResource(R.layout.preference_empty_list);
57                    mNoDeviceFoundPreference.setTitle(mEmptyTextRes);
58                    mNoDeviceFoundPreference.setSelectable(false);
59                }
60                addPreference(mNoDeviceFoundPreference);
61                mNoDeviceFoundAdded = true;
62            }
63        }
64    }
65
66    @Override
67    public void setProgress(boolean progressOn) {
68        mProgress = progressOn;
69        notifyChanged();
70    }
71}
72