1/*
2 * Copyright (C) 2014 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.documentsui;
18
19import android.R.string;
20import android.app.Activity;
21import android.app.Fragment;
22import android.app.FragmentManager;
23import android.app.FragmentTransaction;
24import android.os.Bundle;
25import android.text.TextUtils;
26import android.view.LayoutInflater;
27import android.view.View;
28import android.view.ViewGroup;
29import android.widget.Button;
30
31import com.android.documentsui.model.DocumentInfo;
32
33import java.util.Locale;
34
35/**
36 * Display pick confirmation bar, usually for selecting a directory.
37 */
38public class PickFragment extends Fragment {
39    public static final String TAG = "PickFragment";
40
41    private int mAction;
42    private DocumentInfo mPickTarget;
43    private View mContainer;
44    private Button mPick;
45    private Button mCancel;
46
47    public static void show(FragmentManager fm) {
48        // Fragment can be restored by FragmentManager automatically.
49        if (get(fm) != null) {
50            return;
51        }
52
53        final PickFragment fragment = new PickFragment();
54        final FragmentTransaction ft = fm.beginTransaction();
55        ft.replace(R.id.container_save, fragment, TAG);
56        ft.commitAllowingStateLoss();
57    }
58
59    public static PickFragment get(FragmentManager fm) {
60        return (PickFragment) fm.findFragmentByTag(TAG);
61    }
62
63    @Override
64    public View onCreateView(
65            LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
66        mContainer = inflater.inflate(R.layout.fragment_pick, container, false);
67
68        mPick = (Button) mContainer.findViewById(android.R.id.button1);
69        mPick.setOnClickListener(mPickListener);
70
71        mCancel = (Button) mContainer.findViewById(android.R.id.button2);
72        mCancel.setOnClickListener(mCancelListener);
73
74        updateView();
75        return mContainer;
76    }
77
78    private View.OnClickListener mPickListener = new View.OnClickListener() {
79        @Override
80        public void onClick(View v) {
81            final DocumentsActivity activity = DocumentsActivity.get(PickFragment.this);
82            activity.onPickRequested(mPickTarget);
83        }
84    };
85
86    private View.OnClickListener mCancelListener = new View.OnClickListener() {
87        @Override
88        public void onClick(View v) {
89            final BaseActivity activity = BaseActivity.get(PickFragment.this);
90            activity.setResult(Activity.RESULT_CANCELED);
91            activity.finish();
92        }
93    };
94
95    /**
96     * @param action Which action defined in BaseActivity.State is the picker shown for.
97     */
98    public void setPickTarget(int action, DocumentInfo pickTarget) {
99        mAction = action;
100        mPickTarget = pickTarget;
101        if (mContainer != null) {
102            updateView();
103        }
104    }
105
106    /**
107     * Applies the state of fragment to the view components.
108     */
109    private void updateView() {
110        switch (mAction) {
111            case BaseActivity.State.ACTION_OPEN_TREE:
112                mPick.setText(R.string.button_select);
113                mCancel.setVisibility(View.GONE);
114                break;
115            case BaseActivity.State.ACTION_OPEN_COPY_DESTINATION:
116                mPick.setText(R.string.button_copy);
117                mCancel.setVisibility(View.VISIBLE);
118                break;
119            default:
120                mContainer.setVisibility(View.GONE);
121                return;
122        }
123
124        if (mPickTarget != null && (
125                mAction == BaseActivity.State.ACTION_OPEN_TREE ||
126                mPickTarget.isCreateSupported())) {
127            mContainer.setVisibility(View.VISIBLE);
128        } else {
129            mContainer.setVisibility(View.GONE);
130        }
131    }
132}
133