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 android.support.v4.provider;
18
19import android.content.Context;
20import android.net.Uri;
21
22class TreeDocumentFile extends DocumentFile {
23    private Context mContext;
24    private Uri mUri;
25
26    TreeDocumentFile(DocumentFile parent, Context context, Uri uri) {
27        super(parent);
28        mContext = context;
29        mUri = uri;
30    }
31
32    @Override
33    public DocumentFile createFile(String mimeType, String displayName) {
34        final Uri result = DocumentsContractApi21.createFile(mContext, mUri, mimeType, displayName);
35        return (result != null) ? new TreeDocumentFile(this, mContext, result) : null;
36    }
37
38    @Override
39    public DocumentFile createDirectory(String displayName) {
40        final Uri result = DocumentsContractApi21.createDirectory(mContext, mUri, displayName);
41        return (result != null) ? new TreeDocumentFile(this, mContext, result) : null;
42    }
43
44    @Override
45    public Uri getUri() {
46        return mUri;
47    }
48
49    @Override
50    public String getName() {
51        return DocumentsContractApi19.getName(mContext, mUri);
52    }
53
54    @Override
55    public String getType() {
56        return DocumentsContractApi19.getType(mContext, mUri);
57    }
58
59    @Override
60    public boolean isDirectory() {
61        return DocumentsContractApi19.isDirectory(mContext, mUri);
62    }
63
64    @Override
65    public boolean isFile() {
66        return DocumentsContractApi19.isFile(mContext, mUri);
67    }
68
69    @Override
70    public long lastModified() {
71        return DocumentsContractApi19.lastModified(mContext, mUri);
72    }
73
74    @Override
75    public long length() {
76        return DocumentsContractApi19.length(mContext, mUri);
77    }
78
79    @Override
80    public boolean canRead() {
81        return DocumentsContractApi19.canRead(mContext, mUri);
82    }
83
84    @Override
85    public boolean canWrite() {
86        return DocumentsContractApi19.canWrite(mContext, mUri);
87    }
88
89    @Override
90    public boolean delete() {
91        return DocumentsContractApi19.delete(mContext, mUri);
92    }
93
94    @Override
95    public boolean exists() {
96        return DocumentsContractApi19.exists(mContext, mUri);
97    }
98
99    @Override
100    public DocumentFile[] listFiles() {
101        final Uri[] result = DocumentsContractApi21.listFiles(mContext, mUri);
102        final DocumentFile[] resultFiles = new DocumentFile[result.length];
103        for (int i = 0; i < result.length; i++) {
104            resultFiles[i] = new TreeDocumentFile(this, mContext, result[i]);
105        }
106        return resultFiles;
107    }
108
109    @Override
110    public boolean renameTo(String displayName) {
111        final Uri result = DocumentsContractApi21.renameTo(mContext, mUri, displayName);
112        if (result != null) {
113            mUri = result;
114            return true;
115        } else {
116            return false;
117        }
118    }
119}
120