aimitakeshi | d074e30 | 2010-07-29 10:12:27 +0900 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2010 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 | |
| 17 | #ifndef __DRM_SUPPORT_INFO_H__ |
| 18 | #define __DRM_SUPPORT_INFO_H__ |
| 19 | |
| 20 | #include "drm_framework_common.h" |
| 21 | |
| 22 | namespace android { |
| 23 | |
| 24 | /** |
| 25 | * This is an utility class which wraps the capability of each plug-in, |
| 26 | * such as mimetype's and file suffixes it could handle. |
| 27 | * |
| 28 | * Plug-in developer could return the capability of the plugin by passing |
| 29 | * DrmSupportInfo instance. |
| 30 | * |
| 31 | */ |
| 32 | class DrmSupportInfo { |
| 33 | public: |
| 34 | /** |
| 35 | * Iterator for mMimeTypeVector |
| 36 | */ |
| 37 | class MimeTypeIterator { |
| 38 | friend class DrmSupportInfo; |
| 39 | private: |
| 40 | MimeTypeIterator(DrmSupportInfo* drmSupportInfo) |
| 41 | : mDrmSupportInfo(drmSupportInfo), mIndex(0) {} |
| 42 | public: |
| 43 | MimeTypeIterator(const MimeTypeIterator& iterator); |
| 44 | MimeTypeIterator& operator=(const MimeTypeIterator& iterator); |
| 45 | virtual ~MimeTypeIterator() {} |
| 46 | |
| 47 | public: |
| 48 | bool hasNext(); |
| 49 | String8& next(); |
| 50 | |
| 51 | private: |
| 52 | DrmSupportInfo* mDrmSupportInfo; |
| 53 | unsigned int mIndex; |
| 54 | }; |
| 55 | |
| 56 | /** |
| 57 | * Iterator for mFileSuffixVector |
| 58 | */ |
| 59 | class FileSuffixIterator { |
| 60 | friend class DrmSupportInfo; |
| 61 | |
| 62 | private: |
| 63 | FileSuffixIterator(DrmSupportInfo* drmSupportInfo) |
| 64 | : mDrmSupportInfo(drmSupportInfo), mIndex(0) {} |
| 65 | public: |
| 66 | FileSuffixIterator(const FileSuffixIterator& iterator); |
| 67 | FileSuffixIterator& operator=(const FileSuffixIterator& iterator); |
| 68 | virtual ~FileSuffixIterator() {} |
| 69 | |
| 70 | public: |
| 71 | bool hasNext(); |
| 72 | String8& next(); |
| 73 | |
| 74 | private: |
| 75 | DrmSupportInfo* mDrmSupportInfo; |
| 76 | unsigned int mIndex; |
| 77 | }; |
| 78 | |
| 79 | public: |
| 80 | /** |
| 81 | * Constructor for DrmSupportInfo |
| 82 | */ |
| 83 | DrmSupportInfo(); |
| 84 | |
| 85 | /** |
| 86 | * Copy constructor for DrmSupportInfo |
| 87 | */ |
| 88 | DrmSupportInfo(const DrmSupportInfo& drmSupportInfo); |
| 89 | |
| 90 | /** |
| 91 | * Destructor for DrmSupportInfo |
| 92 | */ |
| 93 | virtual ~DrmSupportInfo() {} |
| 94 | |
| 95 | DrmSupportInfo& operator=(const DrmSupportInfo& drmSupportInfo); |
| 96 | bool operator<(const DrmSupportInfo& drmSupportInfo) const; |
| 97 | bool operator==(const DrmSupportInfo& drmSupportInfo) const; |
| 98 | |
| 99 | /** |
| 100 | * Returns FileSuffixIterator object to walk through file suffix values |
| 101 | * associated with this instance |
| 102 | * |
| 103 | * @return FileSuffixIterator object |
| 104 | */ |
| 105 | FileSuffixIterator getFileSuffixIterator(); |
| 106 | |
| 107 | /** |
| 108 | * Returns MimeTypeIterator object to walk through mimetype values |
| 109 | * associated with this instance |
| 110 | * |
| 111 | * @return MimeTypeIterator object |
| 112 | */ |
| 113 | MimeTypeIterator getMimeTypeIterator(); |
| 114 | |
| 115 | public: |
| 116 | /** |
| 117 | * Returns the number of mimetypes supported. |
| 118 | * |
| 119 | * @return Number of mimetypes supported |
| 120 | */ |
| 121 | int getMimeTypeCount(void) const; |
| 122 | |
| 123 | /** |
| 124 | * Returns the number of file types supported. |
| 125 | * |
| 126 | * @return Number of file types supported |
| 127 | */ |
| 128 | int getFileSuffixCount(void) const; |
| 129 | |
| 130 | /** |
| 131 | * Adds the mimetype to the list of supported mimetypes |
| 132 | * |
| 133 | * @param[in] mimeType mimetype to be added |
| 134 | * @return Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure |
| 135 | */ |
| 136 | status_t addMimeType(const String8& mimeType); |
| 137 | |
| 138 | /** |
| 139 | * Adds the filesuffix to the list of supported file types |
| 140 | * |
| 141 | * @param[in] filesuffix file suffix to be added |
| 142 | * @return Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure |
| 143 | */ |
| 144 | status_t addFileSuffix(const String8& fileSuffix); |
| 145 | |
| 146 | /** |
| 147 | * Set the unique description about the plugin |
| 148 | * |
| 149 | * @param[in] description Unique description |
| 150 | * @return Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure |
| 151 | */ |
| 152 | status_t setDescription(const String8& description); |
| 153 | |
| 154 | /** |
| 155 | * Returns the unique description associated with the plugin |
| 156 | * |
| 157 | * @return Unique description |
| 158 | */ |
| 159 | String8 getDescription() const; |
| 160 | |
| 161 | /** |
| 162 | * Returns whether given mimetype is supported or not |
| 163 | * |
| 164 | * @param[in] mimeType MIME type |
| 165 | * @return |
| 166 | * true - if mime-type is supported |
| 167 | * false - if mime-type is not supported |
| 168 | */ |
| 169 | bool isSupportedMimeType(const String8& mimeType) const; |
| 170 | |
| 171 | /** |
| 172 | * Returns whether given file type is supported or not |
| 173 | * |
| 174 | * @param[in] fileType File type |
| 175 | * @return |
| 176 | * true if file type is supported |
| 177 | * false if file type is not supported |
| 178 | */ |
| 179 | bool isSupportedFileSuffix(const String8& fileType) const; |
| 180 | |
| 181 | private: |
| 182 | Vector<String8> mMimeTypeVector; |
| 183 | Vector<String8> mFileSuffixVector; |
| 184 | |
| 185 | String8 mDescription; |
| 186 | }; |
| 187 | |
| 188 | }; |
| 189 | |
| 190 | #endif /* __DRM_SUPPORT_INFO_H__ */ |
| 191 | |