| /* |
| * Copyright (C) 2005 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| // |
| // Definitions of resource data structures. |
| // |
| #ifndef _LIBS_UTILS_RESOURCE_TYPES_H |
| #define _LIBS_UTILS_RESOURCE_TYPES_H |
| |
| #include <android-base/expected.h> |
| |
| #include <androidfw/Asset.h> |
| #include <androidfw/Errors.h> |
| #include <androidfw/LocaleData.h> |
| #include <androidfw/StringPiece.h> |
| #include <utils/Errors.h> |
| #include <utils/String16.h> |
| #include <utils/Vector.h> |
| #include <utils/KeyedVector.h> |
| |
| #include <utils/threads.h> |
| |
| #include <stdint.h> |
| #include <sys/types.h> |
| |
| #include <android/configuration.h> |
| |
| #include <array> |
| #include <map> |
| #include <memory> |
| |
| namespace android { |
| |
| constexpr const uint32_t kIdmapMagic = 0x504D4449u; |
| constexpr const uint32_t kIdmapCurrentVersion = 0x00000008u; |
| |
| // This must never change. |
| constexpr const uint32_t kFabricatedOverlayMagic = 0x4f525246; // FRRO (big endian) |
| |
| // The version should only be changed when a backwards-incompatible change must be made to the |
| // fabricated overlay file format. Old fabricated overlays must be migrated to the new file format |
| // to prevent losing fabricated overlay data. |
| constexpr const uint32_t kFabricatedOverlayCurrentVersion = 1; |
| |
| // Returns whether or not the path represents a fabricated overlay. |
| bool IsFabricatedOverlay(const std::string& path); |
| |
| /** |
| * In C++11, char16_t is defined as *at least* 16 bits. We do a lot of |
| * casting on raw data and expect char16_t to be exactly 16 bits. |
| */ |
| #if __cplusplus >= 201103L |
| struct __assertChar16Size { |
| static_assert(sizeof(char16_t) == sizeof(uint16_t), "char16_t is not 16 bits"); |
| static_assert(alignof(char16_t) == alignof(uint16_t), "char16_t is not 16-bit aligned"); |
| }; |
| #endif |
| |
| /** ******************************************************************** |
| * PNG Extensions |
| * |
| * New private chunks that may be placed in PNG images. |
| * |
| *********************************************************************** */ |
| |
| /** |
| * This chunk specifies how to split an image into segments for |
| * scaling. |
| * |
| * There are J horizontal and K vertical segments. These segments divide |
| * the image into J*K regions as follows (where J=4 and K=3): |
| * |
| * F0 S0 F1 S1 |
| * +-----+----+------+-------+ |
| * S2| 0 | 1 | 2 | 3 | |
| * +-----+----+------+-------+ |
| * | | | | | |
| * | | | | | |
| * F2| 4 | 5 | 6 | 7 | |
| * | | | | | |
| * | | | | | |
| * +-----+----+------+-------+ |
| * S3| 8 | 9 | 10 | 11 | |
| * +-----+----+------+-------+ |
| * |
| * Each horizontal and vertical segment is considered to by either |
| * stretchable (marked by the Sx labels) or fixed (marked by the Fy |
| * labels), in the horizontal or vertical axis, respectively. In the |
| * above example, the first is horizontal segment (F0) is fixed, the |
| * next is stretchable and then they continue to alternate. Note that |
| * the segment list for each axis can begin or end with a stretchable |
| * or fixed segment. |
| * |
| * The relative sizes of the stretchy segments indicates the relative |
| * amount of stretchiness of the regions bordered by the segments. For |
| * example, regions 3, 7 and 11 above will take up more horizontal space |
| * than regions 1, 5 and 9 since the horizontal segment associated with |
| * the first set of regions is larger than the other set of regions. The |
| * ratios of the amount of horizontal (or vertical) space taken by any |
| * two stretchable slices is exactly the ratio of their corresponding |
| * segment lengths. |
| * |
| * xDivs and yDivs are arrays of horizontal and vertical pixel |
| * indices. The first pair of Divs (in either array) indicate the |
| * starting and ending points of the first stretchable segment in that |
| * axis. The next pair specifies the next stretchable segment, etc. So |
| * in the above example xDiv[0] and xDiv[1] specify the horizontal |
| * coordinates for the regions labeled 1, 5 and 9. xDiv[2] and |
| * xDiv[3] specify the coordinates for regions 3, 7 and 11. Note that |
| * the leftmost slices always start at x=0 and the rightmost slices |
| * always end at the end of the image. So, for example, the regions 0, |
| * 4 and 8 (which are fixed along the X axis) start at x value 0 and |
| * go to xDiv[0] and slices 2, 6 and 10 start at xDiv[1] and end at |
| * xDiv[2]. |
| * |
| * The colors array contains hints for each of the regions. They are |
| * ordered according left-to-right and top-to-bottom as indicated above. |
| * For each segment that is a solid color the array entry will contain |
| * that color value; otherwise it will contain NO_COLOR. Segments that |
| * are completely transparent will always have the value TRANSPARENT_COLOR. |
| * |
| * The PNG chunk type is "npTc". |
| */ |
| struct alignas(uintptr_t) Res_png_9patch |
| { |
| Res_png_9patch() : wasDeserialized(false), xDivsOffset(0), |
| yDivsOffset(0), colorsOffset(0) { } |
| |
| int8_t wasDeserialized; |
| uint8_t numXDivs; |
| uint8_t numYDivs; |
| uint8_t numColors; |
| |
| // The offset (from the start of this structure) to the xDivs & yDivs |
| // array for this 9patch. To get a pointer to this array, call |
| // getXDivs or getYDivs. Note that the serialized form for 9patches places |
| // the xDivs, yDivs and colors arrays immediately after the location |
| // of the Res_png_9patch struct. |
| uint32_t xDivsOffset; |
| uint32_t yDivsOffset; |
| |
| int32_t paddingLeft, paddingRight; |
| int32_t paddingTop, paddingBottom; |
| |
| enum { |
| // The 9 patch segment is not a solid color. |
| NO_COLOR = 0x00000001, |
| |
| // The 9 patch segment is completely transparent. |
| TRANSPARENT_COLOR = 0x00000000 |
| }; |
| |
| // The offset (from the start of this structure) to the colors array |
| // for this 9patch. |
| uint32_t colorsOffset; |
| |
| // Convert data from device representation to PNG file representation. |
| void deviceToFile(); |
| // Convert data from PNG file representation to device representation. |
| void fileToDevice(); |
| |
| // Serialize/Marshall the patch data into a newly malloc-ed block. |
| static void* serialize(const Res_png_9patch& patchHeader, const int32_t* xDivs, |
| const int32_t* yDivs, const uint32_t* colors); |
| // Serialize/Marshall the patch data into |outData|. |
| static void serialize(const Res_png_9patch& patchHeader, const int32_t* xDivs, |
| const int32_t* yDivs, const uint32_t* colors, void* outData); |
| // Deserialize/Unmarshall the patch data |
| static Res_png_9patch* deserialize(void* data); |
| // Compute the size of the serialized data structure |
| size_t serializedSize() const; |
| |
| // These tell where the next section of a patch starts. |
| // For example, the first patch includes the pixels from |
| // 0 to xDivs[0]-1 and the second patch includes the pixels |
| // from xDivs[0] to xDivs[1]-1. |
| inline int32_t* getXDivs() const { |
| return reinterpret_cast<int32_t*>(reinterpret_cast<uintptr_t>(this) + xDivsOffset); |
| } |
| inline int32_t* getYDivs() const { |
| return reinterpret_cast<int32_t*>(reinterpret_cast<uintptr_t>(this) + yDivsOffset); |
| } |
| inline uint32_t* getColors() const { |
| return reinterpret_cast<uint32_t*>(reinterpret_cast<uintptr_t>(this) + colorsOffset); |
| } |
| |
| } __attribute__((packed)); |
| |
| /** ******************************************************************** |
| * Base Types |
| * |
| * These are standard types that are shared between multiple specific |
| * resource types. |
| * |
| *********************************************************************** */ |
| |
| /** |
| * Header that appears at the front of every data chunk in a resource. |
| */ |
| struct ResChunk_header |
| { |
| // Type identifier for this chunk. The meaning of this value depends |
| // on the containing chunk. |
| uint16_t type; |
| |
| // Size of the chunk header (in bytes). Adding this value to |
| // the address of the chunk allows you to find its associated data |
| // (if any). |
| uint16_t headerSize; |
| |
| // Total size of this chunk (in bytes). This is the chunkSize plus |
| // the size of any data associated with the chunk. Adding this value |
| // to the chunk allows you to completely skip its contents (including |
| // any child chunks). If this value is the same as chunkSize, there is |
| // no data associated with the chunk. |
| uint32_t size; |
| }; |
| |
| enum { |
| RES_NULL_TYPE = 0x0000, |
| RES_STRING_POOL_TYPE = 0x0001, |
| RES_TABLE_TYPE = 0x0002, |
| RES_XML_TYPE = 0x0003, |
| |
| // Chunk types in RES_XML_TYPE |
| RES_XML_FIRST_CHUNK_TYPE = 0x0100, |
| RES_XML_START_NAMESPACE_TYPE = 0x0100, |
| RES_XML_END_NAMESPACE_TYPE = 0x0101, |
| RES_XML_START_ELEMENT_TYPE = 0x0102, |
| RES_XML_END_ELEMENT_TYPE = 0x0103, |
| RES_XML_CDATA_TYPE = 0x0104, |
| RES_XML_LAST_CHUNK_TYPE = 0x017f, |
| // This contains a uint32_t array mapping strings in the string |
| // pool back to resource identifiers. It is optional. |
| RES_XML_RESOURCE_MAP_TYPE = 0x0180, |
| |
| // Chunk types in RES_TABLE_TYPE |
| RES_TABLE_PACKAGE_TYPE = 0x0200, |
| RES_TABLE_TYPE_TYPE = 0x0201, |
| RES_TABLE_TYPE_SPEC_TYPE = 0x0202, |
| RES_TABLE_LIBRARY_TYPE = 0x0203, |
| RES_TABLE_OVERLAYABLE_TYPE = 0x0204, |
| RES_TABLE_OVERLAYABLE_POLICY_TYPE = 0x0205, |
| RES_TABLE_STAGED_ALIAS_TYPE = 0x0206, |
| }; |
| |
| /** |
| * Macros for building/splitting resource identifiers. |
| */ |
| #define Res_VALIDID(resid) (resid != 0) |
| #define Res_CHECKID(resid) ((resid&0xFFFF0000) != 0) |
| #define Res_MAKEID(package, type, entry) \ |
| (((package+1)<<24) | (((type+1)&0xFF)<<16) | (entry&0xFFFF)) |
| #define Res_GETPACKAGE(id) ((id>>24)-1) |
| #define Res_GETTYPE(id) (((id>>16)&0xFF)-1) |
| #define Res_GETENTRY(id) (id&0xFFFF) |
| |
| #define Res_INTERNALID(resid) ((resid&0xFFFF0000) != 0 && (resid&0xFF0000) == 0) |
| #define Res_MAKEINTERNAL(entry) (0x01000000 | (entry&0xFFFF)) |
| #define Res_MAKEARRAY(entry) (0x02000000 | (entry&0xFFFF)) |
| |
| static const size_t Res_MAXPACKAGE = 255; |
| static const size_t Res_MAXTYPE = 255; |
| |
| /** |
| * Representation of a value in a resource, supplying type |
| * information. |
| */ |
| struct Res_value |
| { |
| // Number of bytes in this structure. |
| uint16_t size; |
| |
| // Always set to 0. |
| uint8_t res0; |
| |
| // Type of the data value. |
| enum : uint8_t { |
| // The 'data' is either 0 or 1, specifying this resource is either |
| // undefined or empty, respectively. |
| TYPE_NULL = 0x00, |
| // The 'data' holds a ResTable_ref, a reference to another resource |
| // table entry. |
| TYPE_REFERENCE = 0x01, |
| // The 'data' holds an attribute resource identifier. |
| TYPE_ATTRIBUTE = 0x02, |
| // The 'data' holds an index into the containing resource table's |
| // global value string pool. |
| TYPE_STRING = 0x03, |
| // The 'data' holds a single-precision floating point number. |
| TYPE_FLOAT = 0x04, |
| // The 'data' holds a complex number encoding a dimension value, |
| // such as "100in". |
| TYPE_DIMENSION = 0x05, |
| // The 'data' holds a complex number encoding a fraction of a |
| // container. |
| TYPE_FRACTION = 0x06, |
| // The 'data' holds a dynamic ResTable_ref, which needs to be |
| // resolved before it can be used like a TYPE_REFERENCE. |
| TYPE_DYNAMIC_REFERENCE = 0x07, |
| // The 'data' holds an attribute resource identifier, which needs to be resolved |
| // before it can be used like a TYPE_ATTRIBUTE. |
| TYPE_DYNAMIC_ATTRIBUTE = 0x08, |
| |
| // Beginning of integer flavors... |
| TYPE_FIRST_INT = 0x10, |
| |
| // The 'data' is a raw integer value of the form n..n. |
| TYPE_INT_DEC = 0x10, |
| // The 'data' is a raw integer value of the form 0xn..n. |
| TYPE_INT_HEX = 0x11, |
| // The 'data' is either 0 or 1, for input "false" or "true" respectively. |
| TYPE_INT_BOOLEAN = 0x12, |
| |
| // Beginning of color integer flavors... |
| TYPE_FIRST_COLOR_INT = 0x1c, |
| |
| // The 'data' is a raw integer value of the form #aarrggbb. |
| TYPE_INT_COLOR_ARGB8 = 0x1c, |
| // The 'data' is a raw integer value of the form #rrggbb. |
| TYPE_INT_COLOR_RGB8 = 0x1d, |
| // The 'data' is a raw integer value of the form #argb. |
| TYPE_INT_COLOR_ARGB4 = 0x1e, |
| // The 'data' is a raw integer value of the form #rgb. |
| TYPE_INT_COLOR_RGB4 = 0x1f, |
| |
| // ...end of integer flavors. |
| TYPE_LAST_COLOR_INT = 0x1f, |
| |
| // ...end of integer flavors. |
| TYPE_LAST_INT = 0x1f |
| }; |
| uint8_t dataType; |
| |
| // Structure of complex data values (TYPE_UNIT and TYPE_FRACTION) |
| enum { |
| // Where the unit type information is. This gives us 16 possible |
| // types, as defined below. |
| COMPLEX_UNIT_SHIFT = 0, |
| COMPLEX_UNIT_MASK = 0xf, |
| |
| // TYPE_DIMENSION: Value is raw pixels. |
| COMPLEX_UNIT_PX = 0, |
| // TYPE_DIMENSION: Value is Device Independent Pixels. |
| COMPLEX_UNIT_DIP = 1, |
| // TYPE_DIMENSION: Value is a Scaled device independent Pixels. |
| COMPLEX_UNIT_SP = 2, |
| // TYPE_DIMENSION: Value is in points. |
| COMPLEX_UNIT_PT = 3, |
| // TYPE_DIMENSION: Value is in inches. |
| COMPLEX_UNIT_IN = 4, |
| // TYPE_DIMENSION: Value is in millimeters. |
| COMPLEX_UNIT_MM = 5, |
| |
| // TYPE_FRACTION: A basic fraction of the overall size. |
| COMPLEX_UNIT_FRACTION = 0, |
| // TYPE_FRACTION: A fraction of the parent size. |
| COMPLEX_UNIT_FRACTION_PARENT = 1, |
| |
| // Where the radix information is, telling where the decimal place |
| // appears in the mantissa. This give us 4 possible fixed point |
| // representations as defined below. |
| COMPLEX_RADIX_SHIFT = 4, |
| COMPLEX_RADIX_MASK = 0x3, |
| |
| // The mantissa is an integral number -- i.e., 0xnnnnnn.0 |
| COMPLEX_RADIX_23p0 = 0, |
| // The mantissa magnitude is 16 bits -- i.e, 0xnnnn.nn |
| COMPLEX_RADIX_16p7 = 1, |
| // The mantissa magnitude is 8 bits -- i.e, 0xnn.nnnn |
| COMPLEX_RADIX_8p15 = 2, |
| // The mantissa magnitude is 0 bits -- i.e, 0x0.nnnnnn |
| COMPLEX_RADIX_0p23 = 3, |
| |
| // Where the actual value is. This gives us 23 bits of |
| // precision. The top bit is the sign. |
| COMPLEX_MANTISSA_SHIFT = 8, |
| COMPLEX_MANTISSA_MASK = 0xffffff |
| }; |
| |
| // Possible data values for TYPE_NULL. |
| enum { |
| // The value is not defined. |
| DATA_NULL_UNDEFINED = 0, |
| // The value is explicitly defined as empty. |
| DATA_NULL_EMPTY = 1 |
| }; |
| |
| // The data for this item, as interpreted according to dataType. |
| typedef uint32_t data_type; |
| data_type data; |
| |
| void copyFrom_dtoh(const Res_value& src); |
| }; |
| |
| /** |
| * This is a reference to a unique entry (a ResTable_entry structure) |
| * in a resource table. The value is structured as: 0xpptteeee, |
| * where pp is the package index, tt is the type index in that |
| * package, and eeee is the entry index in that type. The package |
| * and type values start at 1 for the first item, to help catch cases |
| * where they have not been supplied. |
| */ |
| struct ResTable_ref |
| { |
| uint32_t ident; |
| }; |
| |
| /** |
| * Reference to a string in a string pool. |
| */ |
| struct ResStringPool_ref |
| { |
| // Index into the string pool table (uint32_t-offset from the indices |
| // immediately after ResStringPool_header) at which to find the location |
| // of the string data in the pool. |
| uint32_t index; |
| }; |
| |
| /** ******************************************************************** |
| * String Pool |
| * |
| * A set of strings that can be references by others through a |
| * ResStringPool_ref. |
| * |
| *********************************************************************** */ |
| |
| /** |
| * Definition for a pool of strings. The data of this chunk is an |
| * array of uint32_t providing indices into the pool, relative to |
| * stringsStart. At stringsStart are all of the UTF-16 strings |
| * concatenated together; each starts with a uint16_t of the string's |
| * length and each ends with a 0x0000 terminator. If a string is > |
| * 32767 characters, the high bit of the length is set meaning to take |
| * those 15 bits as a high word and it will be followed by another |
| * uint16_t containing the low word. |
| * |
| * If styleCount is not zero, then immediately following the array of |
| * uint32_t indices into the string table is another array of indices |
| * into a style table starting at stylesStart. Each entry in the |
| * style table is an array of ResStringPool_span structures. |
| */ |
| struct ResStringPool_header |
| { |
| struct ResChunk_header header; |
| |
| // Number of strings in this pool (number of uint32_t indices that follow |
| // in the data). |
| uint32_t stringCount; |
| |
| // Number of style span arrays in the pool (number of uint32_t indices |
| // follow the string indices). |
| uint32_t styleCount; |
| |
| // Flags. |
| enum { |
| // If set, the string index is sorted by the string values (based |
| // on strcmp16()). |
| SORTED_FLAG = 1<<0, |
| |
| // String pool is encoded in UTF-8 |
| UTF8_FLAG = 1<<8 |
| }; |
| uint32_t flags; |
| |
| // Index from header of the string data. |
| uint32_t stringsStart; |
| |
| // Index from header of the style data. |
| uint32_t stylesStart; |
| }; |
| |
| /** |
| * This structure defines a span of style information associated with |
| * a string in the pool. |
| */ |
| struct ResStringPool_span |
| { |
| enum { |
| END = 0xFFFFFFFF |
| }; |
| |
| // This is the name of the span -- that is, the name of the XML |
| // tag that defined it. The special value END (0xFFFFFFFF) indicates |
| // the end of an array of spans. |
| ResStringPool_ref name; |
| |
| // The range of characters in the string that this span applies to. |
| uint32_t firstChar, lastChar; |
| }; |
| |
| /** |
| * Convenience class for accessing data in a ResStringPool resource. |
| */ |
| class ResStringPool |
| { |
| public: |
| ResStringPool(); |
| ResStringPool(const void* data, size_t size, bool copyData=false); |
| virtual ~ResStringPool(); |
| |
| void setToEmpty(); |
| status_t setTo(incfs::map_ptr<void> data, size_t size, bool copyData=false); |
| |
| status_t getError() const; |
| |
| void uninit(); |
| |
| // Return string entry as UTF16; if the pool is UTF8, the string will |
| // be converted before returning. |
| inline base::expected<StringPiece16, NullOrIOError> stringAt( |
| const ResStringPool_ref& ref) const { |
| return stringAt(ref.index); |
| } |
| virtual base::expected<StringPiece16, NullOrIOError> stringAt(size_t idx) const; |
| |
| // Note: returns null if the string pool is not UTF8. |
| virtual base::expected<StringPiece, NullOrIOError> string8At(size_t idx) const; |
| |
| // Return string whether the pool is UTF8 or UTF16. Does not allow you |
| // to distinguish null. |
| base::expected<String8, IOError> string8ObjectAt(size_t idx) const; |
| |
| base::expected<incfs::map_ptr<ResStringPool_span>, NullOrIOError> styleAt( |
| const ResStringPool_ref& ref) const; |
| base::expected<incfs::map_ptr<ResStringPool_span>, NullOrIOError> styleAt(size_t idx) const; |
| |
| base::expected<size_t, NullOrIOError> indexOfString(const char16_t* str, size_t strLen) const; |
| |
| virtual size_t size() const; |
| size_t styleCount() const; |
| size_t bytes() const; |
| incfs::map_ptr<void> data() const; |
| |
| bool isSorted() const; |
| bool isUTF8() const; |
| |
| private: |
| status_t mError; |
| void* mOwnedData; |
| incfs::verified_map_ptr<ResStringPool_header> mHeader; |
| size_t mSize; |
| mutable Mutex mDecodeLock; |
| incfs::map_ptr<uint32_t> mEntries; |
| incfs::map_ptr<uint32_t> mEntryStyles; |
| incfs::map_ptr<void> mStrings; |
| char16_t mutable** mCache; |
| uint32_t mStringPoolSize; // number of uint16_t |
| incfs::map_ptr<uint32_t> mStyles; |
| uint32_t mStylePoolSize; // number of uint32_t |
| |
| base::expected<StringPiece, NullOrIOError> stringDecodeAt( |
| size_t idx, incfs::map_ptr<uint8_t> str, size_t encLen) const; |
| }; |
| |
| /** |
| * Wrapper class that allows the caller to retrieve a string from |
| * a string pool without knowing which string pool to look. |
| */ |
| class StringPoolRef { |
| public: |
| StringPoolRef() = default; |
| StringPoolRef(const ResStringPool* pool, uint32_t index); |
| |
| base::expected<StringPiece, NullOrIOError> string8() const; |
| base::expected<StringPiece16, NullOrIOError> string16() const; |
| |
| private: |
| const ResStringPool* mPool = nullptr; |
| uint32_t mIndex = 0u; |
| }; |
| |
| /** ******************************************************************** |
| * XML Tree |
| * |
| * Binary representation of an XML document. This is designed to |
| * express everything in an XML document, in a form that is much |
| * easier to parse on the device. |
| * |
| *********************************************************************** */ |
| |
| /** |
| * XML tree header. This appears at the front of an XML tree, |
| * describing its content. It is followed by a flat array of |
| * ResXMLTree_node structures; the hierarchy of the XML document |
| * is described by the occurrance of RES_XML_START_ELEMENT_TYPE |
| * and corresponding RES_XML_END_ELEMENT_TYPE nodes in the array. |
| */ |
| struct ResXMLTree_header |
| { |
| struct ResChunk_header header; |
| }; |
| |
| /** |
| * Basic XML tree node. A single item in the XML document. Extended info |
| * about the node can be found after header.headerSize. |
| */ |
| struct ResXMLTree_node |
| { |
| struct ResChunk_header header; |
| |
| // Line number in original source file at which this element appeared. |
| uint32_t lineNumber; |
| |
| // Optional XML comment that was associated with this element; -1 if none. |
| struct ResStringPool_ref comment; |
| }; |
| |
| /** |
| * Extended XML tree node for CDATA tags -- includes the CDATA string. |
| * Appears header.headerSize bytes after a ResXMLTree_node. |
| */ |
| struct ResXMLTree_cdataExt |
| { |
| // The raw CDATA character data. |
| struct ResStringPool_ref data; |
| |
| // The typed value of the character data if this is a CDATA node. |
| struct Res_value typedData; |
| }; |
| |
| /** |
| * Extended XML tree node for namespace start/end nodes. |
| * Appears header.headerSize bytes after a ResXMLTree_node. |
| */ |
| struct ResXMLTree_namespaceExt |
| { |
| // The prefix of the namespace. |
| struct ResStringPool_ref prefix; |
| |
| // The URI of the namespace. |
| struct ResStringPool_ref uri; |
| }; |
| |
| /** |
| * Extended XML tree node for element start/end nodes. |
| * Appears header.headerSize bytes after a ResXMLTree_node. |
| */ |
| struct ResXMLTree_endElementExt |
| { |
| // String of the full namespace of this element. |
| struct ResStringPool_ref ns; |
| |
| // String name of this node if it is an ELEMENT; the raw |
| // character data if this is a CDATA node. |
| struct ResStringPool_ref name; |
| }; |
| |
| /** |
| * Extended XML tree node for start tags -- includes attribute |
| * information. |
| * Appears header.headerSize bytes after a ResXMLTree_node. |
| */ |
| struct ResXMLTree_attrExt |
| { |
| // String of the full namespace of this element. |
| struct ResStringPool_ref ns; |
| |
| // String name of this node if it is an ELEMENT; the raw |
| // character data if this is a CDATA node. |
| struct ResStringPool_ref name; |
| |
| // Byte offset from the start of this structure where the attributes start. |
| uint16_t attributeStart; |
| |
| // Size of the ResXMLTree_attribute structures that follow. |
| uint16_t attributeSize; |
| |
| // Number of attributes associated with an ELEMENT. These are |
| // available as an array of ResXMLTree_attribute structures |
| // immediately following this node. |
| uint16_t attributeCount; |
| |
| // Index (1-based) of the "id" attribute. 0 if none. |
| uint16_t idIndex; |
| |
| // Index (1-based) of the "class" attribute. 0 if none. |
| uint16_t classIndex; |
| |
| // Index (1-based) of the "style" attribute. 0 if none. |
| uint16_t styleIndex; |
| }; |
| |
| struct ResXMLTree_attribute |
| { |
| // Namespace of this attribute. |
| struct ResStringPool_ref ns; |
| |
| // Name of this attribute. |
| struct ResStringPool_ref name; |
| |
| // The original raw string value of this attribute. |
| struct ResStringPool_ref rawValue; |
| |
| // Processesd typed value of this attribute. |
| struct Res_value typedValue; |
| }; |
| |
| class ResXMLTree; |
| |
| class ResXMLParser |
| { |
| public: |
| explicit ResXMLParser(const ResXMLTree& tree); |
| |
| enum event_code_t { |
| BAD_DOCUMENT = -1, |
| START_DOCUMENT = 0, |
| END_DOCUMENT = 1, |
| |
| FIRST_CHUNK_CODE = RES_XML_FIRST_CHUNK_TYPE, |
| |
| START_NAMESPACE = RES_XML_START_NAMESPACE_TYPE, |
| END_NAMESPACE = RES_XML_END_NAMESPACE_TYPE, |
| START_TAG = RES_XML_START_ELEMENT_TYPE, |
| END_TAG = RES_XML_END_ELEMENT_TYPE, |
| TEXT = RES_XML_CDATA_TYPE |
| }; |
| |
| struct ResXMLPosition |
| { |
| event_code_t eventCode; |
| const ResXMLTree_node* curNode; |
| const void* curExt; |
| }; |
| |
| void restart(); |
| |
| const ResStringPool& getStrings() const; |
| |
| event_code_t getEventType() const; |
| // Note, unlike XmlPullParser, the first call to next() will return |
| // START_TAG of the first element. |
| event_code_t next(); |
| |
| // These are available for all nodes: |
| int32_t getCommentID() const; |
| const char16_t* getComment(size_t* outLen) const; |
| uint32_t getLineNumber() const; |
| |
| // This is available for TEXT: |
| int32_t getTextID() const; |
| const char16_t* getText(size_t* outLen) const; |
| ssize_t getTextValue(Res_value* outValue) const; |
| |
| // These are available for START_NAMESPACE and END_NAMESPACE: |
| int32_t getNamespacePrefixID() const; |
| const char16_t* getNamespacePrefix(size_t* outLen) const; |
| int32_t getNamespaceUriID() const; |
| const char16_t* getNamespaceUri(size_t* outLen) const; |
| |
| // These are available for START_TAG and END_TAG: |
| int32_t getElementNamespaceID() const; |
| const char16_t* getElementNamespace(size_t* outLen) const; |
| int32_t getElementNameID() const; |
| const char16_t* getElementName(size_t* outLen) const; |
| |
| // Remaining methods are for retrieving information about attributes |
| // associated with a START_TAG: |
| |
| size_t getAttributeCount() const; |
| |
| // Returns -1 if no namespace, -2 if idx out of range. |
| int32_t getAttributeNamespaceID(size_t idx) const; |
| const char16_t* getAttributeNamespace(size_t idx, size_t* outLen) const; |
| |
| int32_t getAttributeNameID(size_t idx) const; |
| const char16_t* getAttributeName(size_t idx, size_t* outLen) const; |
| uint32_t getAttributeNameResID(size_t idx) const; |
| |
| // These will work only if the underlying string pool is UTF-8. |
| const char* getAttributeNamespace8(size_t idx, size_t* outLen) const; |
| const char* getAttributeName8(size_t idx, size_t* outLen) const; |
| |
| int32_t getAttributeValueStringID(size_t idx) const; |
| const char16_t* getAttributeStringValue(size_t idx, size_t* outLen) const; |
| |
| int32_t getAttributeDataType(size_t idx) const; |
| int32_t getAttributeData(size_t idx) const; |
| ssize_t getAttributeValue(size_t idx, Res_value* outValue) const; |
| |
| ssize_t indexOfAttribute(const char* ns, const char* attr) const; |
| ssize_t indexOfAttribute(const char16_t* ns, size_t nsLen, |
| const char16_t* attr, size_t attrLen) const; |
| |
| ssize_t indexOfID() const; |
| ssize_t indexOfClass() const; |
| ssize_t indexOfStyle() const; |
| |
| void getPosition(ResXMLPosition* pos) const; |
| void setPosition(const ResXMLPosition& pos); |
| |
| void setSourceResourceId(const uint32_t resId); |
| uint32_t getSourceResourceId() const; |
| |
| private: |
| friend class ResXMLTree; |
| |
| event_code_t nextNode(); |
| |
| const ResXMLTree& mTree; |
| event_code_t mEventCode; |
| const ResXMLTree_node* mCurNode; |
| const void* mCurExt; |
| uint32_t mSourceResourceId; |
| }; |
| |
| static inline bool operator==(const android::ResXMLParser::ResXMLPosition& lhs, |
| const android::ResXMLParser::ResXMLPosition& rhs) { |
| return lhs.curNode == rhs.curNode; |
| } |
| |
| class DynamicRefTable; |
| |
| /** |
| * Convenience class for accessing data in a ResXMLTree resource. |
| */ |
| class ResXMLTree : public ResXMLParser |
| { |
| public: |
| /** |
| * Creates a ResXMLTree with the specified DynamicRefTable for run-time package id translation. |
| * The tree stores a clone of the specified DynamicRefTable, so any changes to the original |
| * DynamicRefTable will not affect this tree after instantiation. |
| **/ |
| explicit ResXMLTree(std::shared_ptr<const DynamicRefTable> dynamicRefTable); |
| ResXMLTree(); |
| ~ResXMLTree(); |
| |
| status_t setTo(const void* data, size_t size, bool copyData=false); |
| |
| status_t getError() const; |
| |
| void uninit(); |
| |
| private: |
| friend class ResXMLParser; |
| |
| status_t validateNode(const ResXMLTree_node* node) const; |
| |
| std::shared_ptr<const DynamicRefTable> mDynamicRefTable; |
| |
| status_t mError; |
| void* mOwnedData; |
| const ResXMLTree_header* mHeader; |
| size_t mSize; |
| const uint8_t* mDataEnd; |
| ResStringPool mStrings; |
| const uint32_t* mResIds; |
| size_t mNumResIds; |
| const ResXMLTree_node* mRootNode; |
| const void* mRootExt; |
| event_code_t mRootCode; |
| }; |
| |
| /** ******************************************************************** |
| * RESOURCE TABLE |
| * |
| *********************************************************************** */ |
| |
| /** |
| * Header for a resource table. Its data contains a series of |
| * additional chunks: |
| * * A ResStringPool_header containing all table values. This string pool |
| * contains all of the string values in the entire resource table (not |
| * the names of entries or type identifiers however). |
| * * One or more ResTable_package chunks. |
| * |
| * Specific entries within a resource table can be uniquely identified |
| * with a single integer as defined by the ResTable_ref structure. |
| */ |
| struct ResTable_header |
| { |
| struct ResChunk_header header; |
| |
| // The number of ResTable_package structures. |
| uint32_t packageCount; |
| }; |
| |
| /** |
| * A collection of resource data types within a package. Followed by |
| * one or more ResTable_type and ResTable_typeSpec structures containing the |
| * entry values for each resource type. |
| */ |
| struct ResTable_package |
| { |
| struct ResChunk_header header; |
| |
| // If this is a base package, its ID. Package IDs start |
| // at 1 (corresponding to the value of the package bits in a |
| // resource identifier). 0 means this is not a base package. |
| uint32_t id; |
| |
| // Actual name of this package, \0-terminated. |
| uint16_t name[128]; |
| |
| // Offset to a ResStringPool_header defining the resource |
| // type symbol table. If zero, this package is inheriting from |
| // another base package (overriding specific values in it). |
| uint32_t typeStrings; |
| |
| // Last index into typeStrings that is for public use by others. |
| uint32_t lastPublicType; |
| |
| // Offset to a ResStringPool_header defining the resource |
| // key symbol table. If zero, this package is inheriting from |
| // another base package (overriding specific values in it). |
| uint32_t keyStrings; |
| |
| // Last index into keyStrings that is for public use by others. |
| uint32_t lastPublicKey; |
| |
| uint32_t typeIdOffset; |
| }; |
| |
| // The most specific locale can consist of: |
| // |
| // - a 3 char language code |
| // - a 3 char region code prefixed by a 'r' |
| // - a 4 char script code prefixed by a 's' |
| // - a 8 char variant code prefixed by a 'v' |
| // |
| // each separated by a single char separator, which sums up to a total of 24 |
| // chars, (25 include the string terminator). Numbering system specificator, |
| // if present, can add up to 14 bytes (-u-nu-xxxxxxxx), giving 39 bytes, |
| // or 40 bytes to make it 4 bytes aligned. |
| #define RESTABLE_MAX_LOCALE_LEN 40 |
| |
| |
| /** |
| * Describes a particular resource configuration. |
| */ |
| struct ResTable_config |
| { |
| // Number of bytes in this structure. |
| uint32_t size; |
| |
| union { |
| struct { |
| // Mobile country code (from SIM). 0 means "any". |
| uint16_t mcc; |
| // Mobile network code (from SIM). 0 means "any". |
| uint16_t mnc; |
| }; |
| uint32_t imsi; |
| }; |
| |
| union { |
| struct { |
| // This field can take three different forms: |
| // - \0\0 means "any". |
| // |
| // - Two 7 bit ascii values interpreted as ISO-639-1 language |
| // codes ('fr', 'en' etc. etc.). The high bit for both bytes is |
| // zero. |
| // |
| // - A single 16 bit little endian packed value representing an |
| // ISO-639-2 3 letter language code. This will be of the form: |
| // |
| // {1, t, t, t, t, t, s, s, s, s, s, f, f, f, f, f} |
| // |
| // bit[0, 4] = first letter of the language code |
| // bit[5, 9] = second letter of the language code |
| // bit[10, 14] = third letter of the language code. |
| // bit[15] = 1 always |
| // |
| // For backwards compatibility, languages that have unambiguous |
| // two letter codes are represented in that format. |
| // |
| // The layout is always bigendian irrespective of the runtime |
| // architecture. |
| char language[2]; |
| |
| // This field can take three different forms: |
| // - \0\0 means "any". |
| // |
| // - Two 7 bit ascii values interpreted as 2 letter region |
| // codes ('US', 'GB' etc.). The high bit for both bytes is zero. |
| // |
| // - An UN M.49 3 digit region code. For simplicity, these are packed |
| // in the same manner as the language codes, though we should need |
| // only 10 bits to represent them, instead of the 15. |
| // |
| // The layout is always bigendian irrespective of the runtime |
| // architecture. |
| char country[2]; |
| }; |
| uint32_t locale; |
| }; |
| |
| enum { |
| ORIENTATION_ANY = ACONFIGURATION_ORIENTATION_ANY, |
| ORIENTATION_PORT = ACONFIGURATION_ORIENTATION_PORT, |
| ORIENTATION_LAND = ACONFIGURATION_ORIENTATION_LAND, |
| ORIENTATION_SQUARE = ACONFIGURATION_ORIENTATION_SQUARE, |
| }; |
| |
| enum { |
| TOUCHSCREEN_ANY = ACONFIGURATION_TOUCHSCREEN_ANY, |
| TOUCHSCREEN_NOTOUCH = ACONFIGURATION_TOUCHSCREEN_NOTOUCH, |
| TOUCHSCREEN_STYLUS = ACONFIGURATION_TOUCHSCREEN_STYLUS, |
| TOUCHSCREEN_FINGER = ACONFIGURATION_TOUCHSCREEN_FINGER, |
| }; |
| |
| enum { |
| DENSITY_DEFAULT = ACONFIGURATION_DENSITY_DEFAULT, |
| DENSITY_LOW = ACONFIGURATION_DENSITY_LOW, |
| DENSITY_MEDIUM = ACONFIGURATION_DENSITY_MEDIUM, |
| DENSITY_TV = ACONFIGURATION_DENSITY_TV, |
| DENSITY_HIGH = ACONFIGURATION_DENSITY_HIGH, |
| DENSITY_XHIGH = ACONFIGURATION_DENSITY_XHIGH, |
| DENSITY_XXHIGH = ACONFIGURATION_DENSITY_XXHIGH, |
| DENSITY_XXXHIGH = ACONFIGURATION_DENSITY_XXXHIGH, |
| DENSITY_ANY = ACONFIGURATION_DENSITY_ANY, |
| DENSITY_NONE = ACONFIGURATION_DENSITY_NONE |
| }; |
| |
| union { |
| struct { |
| uint8_t orientation; |
| uint8_t touchscreen; |
| uint16_t density; |
| }; |
| uint32_t screenType; |
| }; |
| |
| enum { |
| KEYBOARD_ANY = ACONFIGURATION_KEYBOARD_ANY, |
| KEYBOARD_NOKEYS = ACONFIGURATION_KEYBOARD_NOKEYS, |
| KEYBOARD_QWERTY = ACONFIGURATION_KEYBOARD_QWERTY, |
| KEYBOARD_12KEY = ACONFIGURATION_KEYBOARD_12KEY, |
| }; |
| |
| enum { |
| NAVIGATION_ANY = ACONFIGURATION_NAVIGATION_ANY, |
| NAVIGATION_NONAV = ACONFIGURATION_NAVIGATION_NONAV, |
| NAVIGATION_DPAD = ACONFIGURATION_NAVIGATION_DPAD, |
| NAVIGATION_TRACKBALL = ACONFIGURATION_NAVIGATION_TRACKBALL, |
| NAVIGATION_WHEEL = ACONFIGURATION_NAVIGATION_WHEEL, |
| }; |
| |
| enum { |
| MASK_KEYSHIDDEN = 0x0003, |
| KEYSHIDDEN_ANY = ACONFIGURATION_KEYSHIDDEN_ANY, |
| KEYSHIDDEN_NO = ACONFIGURATION_KEYSHIDDEN_NO, |
| KEYSHIDDEN_YES = ACONFIGURATION_KEYSHIDDEN_YES, |
| KEYSHIDDEN_SOFT = ACONFIGURATION_KEYSHIDDEN_SOFT, |
| }; |
| |
| enum { |
| MASK_NAVHIDDEN = 0x000c, |
| SHIFT_NAVHIDDEN = 2, |
| NAVHIDDEN_ANY = ACONFIGURATION_NAVHIDDEN_ANY << SHIFT_NAVHIDDEN, |
| NAVHIDDEN_NO = ACONFIGURATION_NAVHIDDEN_NO << SHIFT_NAVHIDDEN, |
| NAVHIDDEN_YES = ACONFIGURATION_NAVHIDDEN_YES << SHIFT_NAVHIDDEN, |
| }; |
| |
| union { |
| struct { |
| uint8_t keyboard; |
| uint8_t navigation; |
| uint8_t inputFlags; |
| uint8_t inputPad0; |
| }; |
| uint32_t input; |
| }; |
| |
| enum { |
| SCREENWIDTH_ANY = 0 |
| }; |
| |
| enum { |
| SCREENHEIGHT_ANY = 0 |
| }; |
| |
| union { |
| struct { |
| uint16_t screenWidth; |
| uint16_t screenHeight; |
| }; |
| uint32_t screenSize; |
| }; |
| |
| enum { |
| SDKVERSION_ANY = 0 |
| }; |
| |
| enum { |
| MINORVERSION_ANY = 0 |
| }; |
| |
| union { |
| struct { |
| uint16_t sdkVersion; |
| // For now minorVersion must always be 0!!! Its meaning |
| // is currently undefined. |
| uint16_t minorVersion; |
| }; |
| uint32_t version; |
| }; |
| |
| enum { |
| // screenLayout bits for screen size class. |
| MASK_SCREENSIZE = 0x0f, |
| SCREENSIZE_ANY = ACONFIGURATION_SCREENSIZE_ANY, |
| SCREENSIZE_SMALL = ACONFIGURATION_SCREENSIZE_SMALL, |
| SCREENSIZE_NORMAL = ACONFIGURATION_SCREENSIZE_NORMAL, |
| SCREENSIZE_LARGE = ACONFIGURATION_SCREENSIZE_LARGE, |
| SCREENSIZE_XLARGE = ACONFIGURATION_SCREENSIZE_XLARGE, |
| |
| // screenLayout bits for wide/long screen variation. |
| MASK_SCREENLONG = 0x30, |
| SHIFT_SCREENLONG = 4, |
| SCREENLONG_ANY = ACONFIGURATION_SCREENLONG_ANY << SHIFT_SCREENLONG, |
| SCREENLONG_NO = ACONFIGURATION_SCREENLONG_NO << SHIFT_SCREENLONG, |
| SCREENLONG_YES = ACONFIGURATION_SCREENLONG_YES << SHIFT_SCREENLONG, |
| |
| // screenLayout bits for layout direction. |
| MASK_LAYOUTDIR = 0xC0, |
| SHIFT_LAYOUTDIR = 6, |
| LAYOUTDIR_ANY = ACONFIGURATION_LAYOUTDIR_ANY << SHIFT_LAYOUTDIR, |
| LAYOUTDIR_LTR = ACONFIGURATION_LAYOUTDIR_LTR << SHIFT_LAYOUTDIR, |
| LAYOUTDIR_RTL = ACONFIGURATION_LAYOUTDIR_RTL << SHIFT_LAYOUTDIR, |
| }; |
| |
| enum { |
| // uiMode bits for the mode type. |
| MASK_UI_MODE_TYPE = 0x0f, |
| UI_MODE_TYPE_ANY = ACONFIGURATION_UI_MODE_TYPE_ANY, |
| UI_MODE_TYPE_NORMAL = ACONFIGURATION_UI_MODE_TYPE_NORMAL, |
| UI_MODE_TYPE_DESK = ACONFIGURATION_UI_MODE_TYPE_DESK, |
| UI_MODE_TYPE_CAR = ACONFIGURATION_UI_MODE_TYPE_CAR, |
| UI_MODE_TYPE_TELEVISION = ACONFIGURATION_UI_MODE_TYPE_TELEVISION, |
| UI_MODE_TYPE_APPLIANCE = ACONFIGURATION_UI_MODE_TYPE_APPLIANCE, |
| UI_MODE_TYPE_WATCH = ACONFIGURATION_UI_MODE_TYPE_WATCH, |
| UI_MODE_TYPE_VR_HEADSET = ACONFIGURATION_UI_MODE_TYPE_VR_HEADSET, |
| |
| // uiMode bits for the night switch. |
| MASK_UI_MODE_NIGHT = 0x30, |
| SHIFT_UI_MODE_NIGHT = 4, |
| UI_MODE_NIGHT_ANY = ACONFIGURATION_UI_MODE_NIGHT_ANY << SHIFT_UI_MODE_NIGHT, |
| UI_MODE_NIGHT_NO = ACONFIGURATION_UI_MODE_NIGHT_NO << SHIFT_UI_MODE_NIGHT, |
| UI_MODE_NIGHT_YES = ACONFIGURATION_UI_MODE_NIGHT_YES << SHIFT_UI_MODE_NIGHT, |
| }; |
| |
| union { |
| struct { |
| uint8_t screenLayout; |
| uint8_t uiMode; |
| uint16_t smallestScreenWidthDp; |
| }; |
| uint32_t screenConfig; |
| }; |
| |
| union { |
| struct { |
| uint16_t screenWidthDp; |
| uint16_t screenHeightDp; |
| }; |
| uint32_t screenSizeDp; |
| }; |
| |
| // The ISO-15924 short name for the script corresponding to this |
| // configuration. (eg. Hant, Latn, etc.). Interpreted in conjunction with |
| // the locale field. |
| char localeScript[4]; |
| |
| // A single BCP-47 variant subtag. Will vary in length between 4 and 8 |
| // chars. Interpreted in conjunction with the locale field. |
| char localeVariant[8]; |
| |
| enum { |
| // screenLayout2 bits for round/notround. |
| MASK_SCREENROUND = 0x03, |
| SCREENROUND_ANY = ACONFIGURATION_SCREENROUND_ANY, |
| SCREENROUND_NO = ACONFIGURATION_SCREENROUND_NO, |
| SCREENROUND_YES = ACONFIGURATION_SCREENROUND_YES, |
| }; |
| |
| enum { |
| // colorMode bits for wide-color gamut/narrow-color gamut. |
| MASK_WIDE_COLOR_GAMUT = 0x03, |
| WIDE_COLOR_GAMUT_ANY = ACONFIGURATION_WIDE_COLOR_GAMUT_ANY, |
| WIDE_COLOR_GAMUT_NO = ACONFIGURATION_WIDE_COLOR_GAMUT_NO, |
| WIDE_COLOR_GAMUT_YES = ACONFIGURATION_WIDE_COLOR_GAMUT_YES, |
| |
| // colorMode bits for HDR/LDR. |
| MASK_HDR = 0x0c, |
| SHIFT_COLOR_MODE_HDR = 2, |
| HDR_ANY = ACONFIGURATION_HDR_ANY << SHIFT_COLOR_MODE_HDR, |
| HDR_NO = ACONFIGURATION_HDR_NO << SHIFT_COLOR_MODE_HDR, |
| HDR_YES = ACONFIGURATION_HDR_YES << SHIFT_COLOR_MODE_HDR, |
| }; |
| |
| // An extension of screenConfig. |
| union { |
| struct { |
| uint8_t screenLayout2; // Contains round/notround qualifier. |
| uint8_t colorMode; // Wide-gamut, HDR, etc. |
| uint16_t screenConfigPad2; // Reserved padding. |
| }; |
| uint32_t screenConfig2; |
| }; |
| |
| // If false and localeScript is set, it means that the script of the locale |
| // was explicitly provided. |
| // |
| // If true, it means that localeScript was automatically computed. |
| // localeScript may still not be set in this case, which means that we |
| // tried but could not compute a script. |
| bool localeScriptWasComputed; |
| |
| // The value of BCP 47 Unicode extension for key 'nu' (numbering system). |
| // Varies in length from 3 to 8 chars. Zero-filled value. |
| char localeNumberingSystem[8]; |
| |
| void copyFromDeviceNoSwap(const ResTable_config& o); |
| |
| void copyFromDtoH(const ResTable_config& o); |
| |
| void swapHtoD(); |
| |
| int compare(const ResTable_config& o) const; |
| int compareLogical(const ResTable_config& o) const; |
| |
| inline bool operator<(const ResTable_config& o) const { return compare(o) < 0; } |
| |
| // Flags indicating a set of config values. These flag constants must |
| // match the corresponding ones in android.content.pm.ActivityInfo and |
| // attrs_manifest.xml. |
| enum { |
| CONFIG_MCC = ACONFIGURATION_MCC, |
| CONFIG_MNC = ACONFIGURATION_MNC, |
| CONFIG_LOCALE = ACONFIGURATION_LOCALE, |
| CONFIG_TOUCHSCREEN = ACONFIGURATION_TOUCHSCREEN, |
| CONFIG_KEYBOARD = ACONFIGURATION_KEYBOARD, |
| CONFIG_KEYBOARD_HIDDEN = ACONFIGURATION_KEYBOARD_HIDDEN, |
| CONFIG_NAVIGATION = ACONFIGURATION_NAVIGATION, |
| CONFIG_ORIENTATION = ACONFIGURATION_ORIENTATION, |
| CONFIG_DENSITY = ACONFIGURATION_DENSITY, |
| CONFIG_SCREEN_SIZE = ACONFIGURATION_SCREEN_SIZE, |
| CONFIG_SMALLEST_SCREEN_SIZE = ACONFIGURATION_SMALLEST_SCREEN_SIZE, |
| CONFIG_VERSION = ACONFIGURATION_VERSION, |
| CONFIG_SCREEN_LAYOUT = ACONFIGURATION_SCREEN_LAYOUT, |
| CONFIG_UI_MODE = ACONFIGURATION_UI_MODE, |
| CONFIG_LAYOUTDIR = ACONFIGURATION_LAYOUTDIR, |
| CONFIG_SCREEN_ROUND = ACONFIGURATION_SCREEN_ROUND, |
| CONFIG_COLOR_MODE = ACONFIGURATION_COLOR_MODE, |
| }; |
| |
| // Compare two configuration, returning CONFIG_* flags set for each value |
| // that is different. |
| int diff(const ResTable_config& o) const; |
| |
| // Return true if 'this' is more specific than 'o'. |
| bool isMoreSpecificThan(const ResTable_config& o) const; |
| |
| // Return true if 'this' is a better match than 'o' for the 'requested' |
| // configuration. This assumes that match() has already been used to |
| // remove any configurations that don't match the requested configuration |
| // at all; if they are not first filtered, non-matching results can be |
| // considered better than matching ones. |
| // The general rule per attribute: if the request cares about an attribute |
| // (it normally does), if the two (this and o) are equal it's a tie. If |
| // they are not equal then one must be generic because only generic and |
| // '==requested' will pass the match() call. So if this is not generic, |
| // it wins. If this IS generic, o wins (return false). |
| bool isBetterThan(const ResTable_config& o, const ResTable_config* requested) const; |
| |
| // Return true if 'this' can be considered a match for the parameters in |
| // 'settings'. |
| // Note this is asymetric. A default piece of data will match every request |
| // but a request for the default should not match odd specifics |
| // (ie, request with no mcc should not match a particular mcc's data) |
| // settings is the requested settings |
| bool match(const ResTable_config& settings) const; |
| |
| // Get the string representation of the locale component of this |
| // Config. The maximum size of this representation will be |
| // |RESTABLE_MAX_LOCALE_LEN| (including a terminating '\0'). |
| // |
| // Example: en-US, en-Latn-US, en-POSIX. |
| // |
| // If canonicalize is set, Tagalog (tl) locales get converted |
| // to Filipino (fil). |
| void getBcp47Locale(char* out, bool canonicalize=false) const; |
| |
| // Append to str the resource-qualifer string representation of the |
| // locale component of this Config. If the locale is only country |
| // and language, it will look like en-rUS. If it has scripts and |
| // variants, it will be a modified bcp47 tag: b+en+Latn+US. |
| void appendDirLocale(String8& str) const; |
| |
| // Sets the values of language, region, script, variant and numbering |
| // system to the well formed BCP 47 locale contained in |in|. |
| // The input locale is assumed to be valid and no validation is performed. |
| void setBcp47Locale(const char* in); |
| |
| inline void clearLocale() { |
| locale = 0; |
| localeScriptWasComputed = false; |
| memset(localeScript, 0, sizeof(localeScript)); |
| memset(localeVariant, 0, sizeof(localeVariant)); |
| memset(localeNumberingSystem, 0, sizeof(localeNumberingSystem)); |
| } |
| |
| inline void computeScript() { |
| localeDataComputeScript(localeScript, language, country); |
| } |
| |
| // Get the 2 or 3 letter language code of this configuration. Trailing |
| // bytes are set to '\0'. |
| size_t unpackLanguage(char language[4]) const; |
| // Get the 2 or 3 letter language code of this configuration. Trailing |
| // bytes are set to '\0'. |
| size_t unpackRegion(char region[4]) const; |
| |
| // Sets the language code of this configuration to the first three |
| // chars at |language|. |
| // |
| // If |language| is a 2 letter code, the trailing byte must be '\0' or |
| // the BCP-47 separator '-'. |
| void packLanguage(const char* language); |
| // Sets the region code of this configuration to the first three bytes |
| // at |region|. If |region| is a 2 letter code, the trailing byte must be '\0' |
| // or the BCP-47 separator '-'. |
| void packRegion(const char* region); |
| |
| // Returns a positive integer if this config is more specific than |o| |
| // with respect to their locales, a negative integer if |o| is more specific |
| // and 0 if they're equally specific. |
| int isLocaleMoreSpecificThan(const ResTable_config &o) const; |
| |
| // Returns an integer representng the imporance score of the configuration locale. |
| int getImportanceScoreOfLocale() const; |
| |
| // Return true if 'this' is a better locale match than 'o' for the |
| // 'requested' configuration. Similar to isBetterThan(), this assumes that |
| // match() has already been used to remove any configurations that don't |
| // match the requested configuration at all. |
| bool isLocaleBetterThan(const ResTable_config& o, const ResTable_config* requested) const; |
| |
| String8 toString() const; |
| }; |
| |
| /** |
| * A specification of the resources defined by a particular type. |
| * |
| * There should be one of these chunks for each resource type. |
| * |
| * This structure is followed by an array of integers providing the set of |
| * configuration change flags (ResTable_config::CONFIG_*) that have multiple |
| * resources for that configuration. In addition, the high bit is set if that |
| * resource has been made public. |
| */ |
| struct ResTable_typeSpec |
| { |
| struct ResChunk_header header; |
| |
| // The type identifier this chunk is holding. Type IDs start |
| // at 1 (corresponding to the value of the type bits in a |
| // resource identifier). 0 is invalid. |
| uint8_t id; |
| |
| // Must be 0. |
| uint8_t res0; |
| // Must be 0. |
| uint16_t res1; |
| |
| // Number of uint32_t entry configuration masks that follow. |
| uint32_t entryCount; |
| |
| enum : uint32_t { |
| // Additional flag indicating an entry is public. |
| SPEC_PUBLIC = 0x40000000u, |
| |
| // Additional flag indicating the resource id for this resource may change in a future |
| // build. If this flag is set, the SPEC_PUBLIC flag is also set since the resource must be |
| // public to be exposed as an API to other applications. |
| SPEC_STAGED_API = 0x20000000u, |
| }; |
| }; |
| |
| /** |
| * A collection of resource entries for a particular resource data |
| * type. |
| * |
| * If the flag FLAG_SPARSE is not set in `flags`, then this struct is |
| * followed by an array of uint32_t defining the resource |
| * values, corresponding to the array of type strings in the |
| * ResTable_package::typeStrings string block. Each of these hold an |
| * index from entriesStart; a value of NO_ENTRY means that entry is |
| * not defined. |
| * |
| * If the flag FLAG_SPARSE is set in `flags`, then this struct is followed |
| * by an array of ResTable_sparseTypeEntry defining only the entries that |
| * have values for this type. Each entry is sorted by their entry ID such |
| * that a binary search can be performed over the entries. The ID and offset |
| * are encoded in a uint32_t. See ResTabe_sparseTypeEntry. |
| * |
| * There may be multiple of these chunks for a particular resource type, |
| * supply different configuration variations for the resource values of |
| * that type. |
| * |
| * It would be nice to have an additional ordered index of entries, so |
| * we can do a binary search if trying to find a resource by string name. |
| */ |
| struct ResTable_type |
| { |
| struct ResChunk_header header; |
| |
| enum { |
| NO_ENTRY = 0xFFFFFFFF |
| }; |
| |
| // The type identifier this chunk is holding. Type IDs start |
| // at 1 (corresponding to the value of the type bits in a |
| // resource identifier). 0 is invalid. |
| uint8_t id; |
| |
| enum { |
| // If set, the entry is sparse, and encodes both the entry ID and offset into each entry, |
| // and a binary search is used to find the key. Only available on platforms >= O. |
| // Mark any types that use this with a v26 qualifier to prevent runtime issues on older |
| // platforms. |
| FLAG_SPARSE = 0x01, |
| }; |
| uint8_t flags; |
| |
| // Must be 0. |
| uint16_t reserved; |
| |
| // Number of uint32_t entry indices that follow. |
| uint32_t entryCount; |
| |
| // Offset from header where ResTable_entry data starts. |
| uint32_t entriesStart; |
| |
| // Configuration this collection of entries is designed for. This must always be last. |
| ResTable_config config; |
| }; |
| |
| // The minimum size required to read any version of ResTable_type. |
| constexpr size_t kResTableTypeMinSize = |
| sizeof(ResTable_type) - sizeof(ResTable_config) + sizeof(ResTable_config::size); |
| |
| // Assert that the ResTable_config is always the last field. This poses a problem for extending |
| // ResTable_type in the future, as ResTable_config is variable (over different releases). |
| static_assert(sizeof(ResTable_type) == offsetof(ResTable_type, config) + sizeof(ResTable_config), |
| "ResTable_config must be last field in ResTable_type"); |
| |
| /** |
| * An entry in a ResTable_type with the flag `FLAG_SPARSE` set. |
| */ |
| union ResTable_sparseTypeEntry { |
| // Holds the raw uint32_t encoded value. Do not read this. |
| uint32_t entry; |
| struct { |
| // The index of the entry. |
| uint16_t idx; |
| |
| // The offset from ResTable_type::entriesStart, divided by 4. |
| uint16_t offset; |
| }; |
| }; |
| |
| static_assert(sizeof(ResTable_sparseTypeEntry) == sizeof(uint32_t), |
| "ResTable_sparseTypeEntry must be 4 bytes in size"); |
| |
| /** |
| * This is the beginning of information about an entry in the resource |
| * table. It holds the reference to the name of this entry, and is |
| * immediately followed by one of: |
| * * A Res_value structure, if FLAG_COMPLEX is -not- set. |
| * * An array of ResTable_map structures, if FLAG_COMPLEX is set. |
| * These supply a set of name/value mappings of data. |
| */ |
| struct ResTable_entry |
| { |
| // Number of bytes in this structure. |
| uint16_t size; |
| |
| enum { |
| // If set, this is a complex entry, holding a set of name/value |
| // mappings. It is followed by an array of ResTable_map structures. |
| FLAG_COMPLEX = 0x0001, |
| // If set, this resource has been declared public, so libraries |
| // are allowed to reference it. |
| FLAG_PUBLIC = 0x0002, |
| // If set, this is a weak resource and may be overriden by strong |
| // resources of the same name/type. This is only useful during |
| // linking with other resource tables. |
| FLAG_WEAK = 0x0004, |
| }; |
| uint16_t flags; |
| |
| // Reference into ResTable_package::keyStrings identifying this entry. |
| struct ResStringPool_ref key; |
| }; |
| |
| /** |
| * Extended form of a ResTable_entry for map entries, defining a parent map |
| * resource from which to inherit values. |
| */ |
| struct ResTable_map_entry : public ResTable_entry |
| { |
| // Resource identifier of the parent mapping, or 0 if there is none. |
| // This is always treated as a TYPE_DYNAMIC_REFERENCE. |
| ResTable_ref parent; |
| // Number of name/value pairs that follow for FLAG_COMPLEX. |
| uint32_t count; |
| }; |
| |
| /** |
| * A single name/value mapping that is part of a complex resource |
| * entry. |
| */ |
| struct ResTable_map |
| { |
| // The resource identifier defining this mapping's name. For attribute |
| // resources, 'name' can be one of the following special resource types |
| // to supply meta-data about the attribute; for all other resource types |
| // it must be an attribute resource. |
| ResTable_ref name; |
| |
| // Special values for 'name' when defining attribute resources. |
| enum { |
| // This entry holds the attribute's type code. |
| ATTR_TYPE = Res_MAKEINTERNAL(0), |
| |
| // For integral attributes, this is the minimum value it can hold. |
| ATTR_MIN = Res_MAKEINTERNAL(1), |
| |
| // For integral attributes, this is the maximum value it can hold. |
| ATTR_MAX = Res_MAKEINTERNAL(2), |
| |
| // Localization of this resource is can be encouraged or required with |
| // an aapt flag if this is set |
| ATTR_L10N = Res_MAKEINTERNAL(3), |
| |
| // for plural support, see android.content.res.PluralRules#attrForQuantity(int) |
| ATTR_OTHER = Res_MAKEINTERNAL(4), |
| ATTR_ZERO = Res_MAKEINTERNAL(5), |
| ATTR_ONE = Res_MAKEINTERNAL(6), |
| ATTR_TWO = Res_MAKEINTERNAL(7), |
| ATTR_FEW = Res_MAKEINTERNAL(8), |
| ATTR_MANY = Res_MAKEINTERNAL(9) |
| |
| }; |
| |
| // Bit mask of allowed types, for use with ATTR_TYPE. |
| enum { |
| // No type has been defined for this attribute, use generic |
| // type handling. The low 16 bits are for types that can be |
| // handled generically; the upper 16 require additional information |
| // in the bag so can not be handled generically for TYPE_ANY. |
| TYPE_ANY = 0x0000FFFF, |
| |
| // Attribute holds a references to another resource. |
| TYPE_REFERENCE = 1<<0, |
| |
| // Attribute holds a generic string. |
| TYPE_STRING = 1<<1, |
| |
| // Attribute holds an integer value. ATTR_MIN and ATTR_MIN can |
| // optionally specify a constrained range of possible integer values. |
| TYPE_INTEGER = 1<<2, |
| |
| // Attribute holds a boolean integer. |
| TYPE_BOOLEAN = 1<<3, |
| |
| // Attribute holds a color value. |
| TYPE_COLOR = 1<<4, |
| |
| // Attribute holds a floating point value. |
| TYPE_FLOAT = 1<<5, |
| |
| // Attribute holds a dimension value, such as "20px". |
| TYPE_DIMENSION = 1<<6, |
| |
| // Attribute holds a fraction value, such as "20%". |
| TYPE_FRACTION = 1<<7, |
| |
| // Attribute holds an enumeration. The enumeration values are |
| // supplied as additional entries in the map. |
| TYPE_ENUM = 1<<16, |
| |
| // Attribute holds a bitmaks of flags. The flag bit values are |
| // supplied as additional entries in the map. |
| TYPE_FLAGS = 1<<17 |
| }; |
| |
| // Enum of localization modes, for use with ATTR_L10N. |
| enum { |
| L10N_NOT_REQUIRED = 0, |
| L10N_SUGGESTED = 1 |
| }; |
| |
| // This mapping's value. |
| Res_value value; |
| }; |
| |
| /** |
| * A package-id to package name mapping for any shared libraries used |
| * in this resource table. The package-id's encoded in this resource |
| * table may be different than the id's assigned at runtime. We must |
| * be able to translate the package-id's based on the package name. |
| */ |
| struct ResTable_lib_header |
| { |
| struct ResChunk_header header; |
| |
| // The number of shared libraries linked in this resource table. |
| uint32_t count; |
| }; |
| |
| /** |
| * A shared library package-id to package name entry. |
| */ |
| struct ResTable_lib_entry |
| { |
| // The package-id this shared library was assigned at build time. |
| // We use a uint32 to keep the structure aligned on a uint32 boundary. |
| uint32_t packageId; |
| |
| // The package name of the shared library. \0 terminated. |
| uint16_t packageName[128]; |
| }; |
| |
| /** |
| * A map that allows rewriting staged (non-finalized) resource ids to their finalized counterparts. |
| */ |
| struct ResTable_staged_alias_header |
| { |
| struct ResChunk_header header; |
| |
| // The number of ResTable_staged_alias_entry that follow this header. |
| uint32_t count; |
| }; |
| |
| /** |
| * Maps the staged (non-finalized) resource id to its finalized resource id. |
| */ |
| struct ResTable_staged_alias_entry |
| { |
| // The compile-time staged resource id to rewrite. |
| uint32_t stagedResId; |
| |
| // The compile-time finalized resource id to which the staged resource id should be rewritten. |
| uint32_t finalizedResId; |
| }; |
| |
| /** |
| * Specifies the set of resources that are explicitly allowed to be overlaid by RROs. |
| */ |
| struct ResTable_overlayable_header |
| { |
| struct ResChunk_header header; |
| |
| // The name of the overlayable set of resources that overlays target. |
| uint16_t name[256]; |
| |
| // The component responsible for enabling and disabling overlays targeting this chunk. |
| uint16_t actor[256]; |
| }; |
| |
| /** |
| * Holds a list of resource ids that are protected from being overlaid by a set of policies. If |
| * the overlay fulfils at least one of the policies, then the overlay can overlay the list of |
| * resources. |
| */ |
| struct ResTable_overlayable_policy_header |
| { |
| /** |
| * Flags for a bitmask for all possible overlayable policy options. |
| * |
| * Any changes to this set should also update aidl/android/os/OverlayablePolicy.aidl |
| */ |
| enum PolicyFlags : uint32_t { |
| // Base |
| NONE = 0x00000000, |
| |
| // Any overlay can overlay these resources. |
| PUBLIC = 0x00000001, |
| |
| // The overlay must reside of the system partition or must have existed on the system partition |
| // before an upgrade to overlay these resources. |
| SYSTEM_PARTITION = 0x00000002, |
| |
| // The overlay must reside of the vendor partition or must have existed on the vendor partition |
| // before an upgrade to overlay these resources. |
| VENDOR_PARTITION = 0x00000004, |
| |
| // The overlay must reside of the product partition or must have existed on the product |
| // partition before an upgrade to overlay these resources. |
| PRODUCT_PARTITION = 0x00000008, |
| |
| // The overlay must be signed with the same signature as the package containing the target |
| // resource |
| SIGNATURE = 0x00000010, |
| |
| // The overlay must reside of the odm partition or must have existed on the odm |
| // partition before an upgrade to overlay these resources. |
| ODM_PARTITION = 0x00000020, |
| |
| // The overlay must reside of the oem partition or must have existed on the oem |
| // partition before an upgrade to overlay these resources. |
| OEM_PARTITION = 0x00000040, |
| |
| // The overlay must be signed with the same signature as the actor declared for the target |
| // resource |
| ACTOR_SIGNATURE = 0x00000080, |
| |
| // The overlay must be signed with the same signature as the reference package declared |
| // in the SystemConfig |
| CONFIG_SIGNATURE = 0x00000100, |
| }; |
| |
| using PolicyBitmask = uint32_t; |
| |
| struct ResChunk_header header; |
| |
| PolicyFlags policy_flags; |
| |
| // The number of ResTable_ref that follow this header. |
| uint32_t entry_count; |
| }; |
| |
| inline ResTable_overlayable_policy_header::PolicyFlags& operator |=( |
| ResTable_overlayable_policy_header::PolicyFlags& first, |
| ResTable_overlayable_policy_header::PolicyFlags second) { |
| first = static_cast<ResTable_overlayable_policy_header::PolicyFlags>(first | second); |
| return first; |
| } |
| |
| class AssetManager2; |
| |
| /** |
| * Holds the shared library ID table. Shared libraries are assigned package IDs at |
| * build time, but they may be loaded in a different order, so we need to maintain |
| * a mapping of build-time package ID to run-time assigned package ID. |
| * |
| * Dynamic references are not currently supported in overlays. Only the base package |
| * may have dynamic references. |
| */ |
| class DynamicRefTable |
| { |
| friend class AssetManager2; |
| public: |
| DynamicRefTable(); |
| DynamicRefTable(uint8_t packageId, bool appAsLib); |
| virtual ~DynamicRefTable() = default; |
| |
| // Loads an unmapped reference table from the package. |
| status_t load(const ResTable_lib_header* const header); |
| |
| // Adds mappings from the other DynamicRefTable |
| status_t addMappings(const DynamicRefTable& other); |
| |
| // Creates a mapping from build-time package ID to run-time package ID for |
| // the given package. |
| status_t addMapping(const String16& packageName, uint8_t packageId); |
| |
| void addMapping(uint8_t buildPackageId, uint8_t runtimePackageId); |
| |
| void addAlias(uint32_t stagedId, uint32_t finalizedId); |
| |
| // Returns whether or not the value must be looked up. |
| bool requiresLookup(const Res_value* value) const; |
| |
| // Performs the actual conversion of build-time resource ID to run-time |
| // resource ID. |
| virtual status_t lookupResourceId(uint32_t* resId) const; |
| status_t lookupResourceValue(Res_value* value) const; |
| |
| inline const KeyedVector<String16, uint8_t>& entries() const { |
| return mEntries; |
| } |
| |
| private: |
| uint8_t mAssignedPackageId; |
| uint8_t mLookupTable[256]; |
| KeyedVector<String16, uint8_t> mEntries; |
| bool mAppAsLib; |
| std::map<uint32_t, uint32_t> mAliasId; |
| }; |
| |
| bool U16StringToInt(const char16_t* s, size_t len, Res_value* outValue); |
| |
| template<typename TChar, typename E> |
| static const TChar* UnpackOptionalString(base::expected<BasicStringPiece<TChar>, E>&& result, |
| size_t* outLen) { |
| if (result.has_value()) { |
| *outLen = result->size(); |
| return result->data(); |
| } |
| return NULL; |
| } |
| |
| /** |
| * Convenience class for accessing data in a ResTable resource. |
| */ |
| class ResTable |
| { |
| public: |
| ResTable(); |
| ResTable(const void* data, size_t size, const int32_t cookie, |
| bool copyData=false); |
| ~ResTable(); |
| |
| status_t add(const void* data, size_t size, const int32_t cookie=-1, bool copyData=false); |
| status_t add(const void* data, size_t size, const void* idmapData, size_t idmapDataSize, |
| const int32_t cookie=-1, bool copyData=false, bool appAsLib=false); |
| |
| status_t add(Asset* asset, const int32_t cookie=-1, bool copyData=false); |
| status_t add(Asset* asset, Asset* idmapAsset, const int32_t cookie=-1, bool copyData=false, |
| bool appAsLib=false, bool isSystemAsset=false); |
| |
| status_t add(ResTable* src, bool isSystemAsset=false); |
| status_t addEmpty(const int32_t cookie); |
| |
| status_t getError() const; |
| |
| void uninit(); |
| |
| struct resource_name |
| { |
| const char16_t* package = NULL; |
| size_t packageLen; |
| const char16_t* type = NULL; |
| const char* type8 = NULL; |
| size_t typeLen; |
| const char16_t* name = NULL; |
| const char* name8 = NULL; |
| size_t nameLen; |
| }; |
| |
| bool getResourceName(uint32_t resID, bool allowUtf8, resource_name* outName) const; |
| |
| bool getResourceFlags(uint32_t resID, uint32_t* outFlags) const; |
| |
| /** |
| * Returns whether or not the package for the given resource has been dynamically assigned. |
| * If the resource can't be found, returns 'false'. |
| */ |
| bool isResourceDynamic(uint32_t resID) const; |
| |
| /** |
| * Returns whether or not the given package has been dynamically assigned. |
| * If the package can't be found, returns 'false'. |
| */ |
| bool isPackageDynamic(uint8_t packageID) const; |
| |
| /** |
| * Retrieve the value of a resource. If the resource is found, returns a |
| * value >= 0 indicating the table it is in (for use with |
| * getTableStringBlock() and getTableCookie()) and fills in 'outValue'. If |
| * not found, returns a negative error code. |
| * |
| * Note that this function does not do reference traversal. If you want |
| * to follow references to other resources to get the "real" value to |
| * use, you need to call resolveReference() after this function. |
| * |
| * @param resID The desired resoruce identifier. |
| * @param outValue Filled in with the resource data that was found. |
| * |
| * @return ssize_t Either a >= 0 table index or a negative error code. |
| */ |
| ssize_t getResource(uint32_t resID, Res_value* outValue, bool mayBeBag = false, |
| uint16_t density = 0, |
| uint32_t* outSpecFlags = NULL, |
| ResTable_config* outConfig = NULL) const; |
| |
| inline ssize_t getResource(const ResTable_ref& res, Res_value* outValue, |
| uint32_t* outSpecFlags=NULL) const { |
| return getResource(res.ident, outValue, false, 0, outSpecFlags, NULL); |
| } |
| |
| ssize_t resolveReference(Res_value* inOutValue, |
| ssize_t blockIndex, |
| uint32_t* outLastRef = NULL, |
| uint32_t* inoutTypeSpecFlags = NULL, |
| ResTable_config* outConfig = NULL) const; |
| |
| enum { |
| TMP_BUFFER_SIZE = 16 |
| }; |
| const char16_t* valueToString(const Res_value* value, size_t stringBlock, |
| char16_t tmpBuffer[TMP_BUFFER_SIZE], |
| size_t* outLen) const; |
| |
| struct bag_entry { |
| ssize_t stringBlock; |
| ResTable_map map; |
| }; |
| |
| /** |
| * Retrieve the bag of a resource. If the resoruce is found, returns the |
| * number of bags it contains and 'outBag' points to an array of their |
| * values. If not found, a negative error code is returned. |
| * |
| * Note that this function -does- do reference traversal of the bag data. |
| * |
| * @param resID The desired resource identifier. |
| * @param outBag Filled inm with a pointer to the bag mappings. |
| * |
| * @return ssize_t Either a >= 0 bag count of negative error code. |
| */ |
| ssize_t lockBag(uint32_t resID, const bag_entry** outBag) const; |
| |
| void unlockBag(const bag_entry* bag) const; |
| |
| void lock() const; |
| |
| ssize_t getBagLocked(uint32_t resID, const bag_entry** outBag, |
| uint32_t* outTypeSpecFlags=NULL) const; |
| |
| void unlock() const; |
| |
| class Theme { |
| public: |
| explicit Theme(const ResTable& table); |
| ~Theme(); |
| |
| inline const ResTable& getResTable() const { return mTable; } |
| |
| status_t applyStyle(uint32_t resID, bool force=false); |
| status_t setTo(const Theme& other); |
| status_t clear(); |
| |
| /** |
| * Retrieve a value in the theme. If the theme defines this |
| * value, returns a value >= 0 indicating the table it is in |
| * (for use with getTableStringBlock() and getTableCookie) and |
| * fills in 'outValue'. If not found, returns a negative error |
| * code. |
| * |
| * Note that this function does not do reference traversal. If you want |
| * to follow references to other resources to get the "real" value to |
| * use, you need to call resolveReference() after this function. |
| * |
| * @param resID A resource identifier naming the desired theme |
| * attribute. |
| * @param outValue Filled in with the theme value that was |
| * found. |
| * |
| * @return ssize_t Either a >= 0 table index or a negative error code. |
| */ |
| ssize_t getAttribute(uint32_t resID, Res_value* outValue, |
| uint32_t* outTypeSpecFlags = NULL) const; |
| |
| /** |
| * This is like ResTable::resolveReference(), but also takes |
| * care of resolving attribute references to the theme. |
| */ |
| ssize_t resolveAttributeReference(Res_value* inOutValue, |
| ssize_t blockIndex, uint32_t* outLastRef = NULL, |
| uint32_t* inoutTypeSpecFlags = NULL, |
| ResTable_config* inoutConfig = NULL) const; |
| |
| /** |
| * Returns a bit mask of configuration changes that will impact this |
| * theme (and thus require completely reloading it). |
| */ |
| uint32_t getChangingConfigurations() const; |
| |
| void dumpToLog() const; |
| |
| private: |
| Theme(const Theme&); |
| Theme& operator=(const Theme&); |
| |
| struct theme_entry { |
| ssize_t stringBlock; |
| uint32_t typeSpecFlags; |
| Res_value value; |
| }; |
| |
| struct type_info { |
| size_t numEntries; |
| theme_entry* entries; |
| }; |
| |
| struct package_info { |
| type_info types[Res_MAXTYPE + 1]; |
| }; |
| |
| void free_package(package_info* pi); |
| package_info* copy_package(package_info* pi); |
| |
| const ResTable& mTable; |
| package_info* mPackages[Res_MAXPACKAGE]; |
| uint32_t mTypeSpecFlags; |
| }; |
| |
| void setParameters(const ResTable_config* params); |
| void getParameters(ResTable_config* params) const; |
| |
| // Retrieve an identifier (which can be passed to getResource) |
| // for a given resource name. The 'name' can be fully qualified |
| // (<package>:<type>.<basename>) or the package or type components |
| // can be dropped if default values are supplied here. |
| // |
| // Returns 0 if no such resource was found, else a valid resource ID. |
| uint32_t identifierForName(const char16_t* name, size_t nameLen, |
| const char16_t* type = 0, size_t typeLen = 0, |
| const char16_t* defPackage = 0, |
| size_t defPackageLen = 0, |
| uint32_t* outTypeSpecFlags = NULL) const; |
| |
| static bool expandResourceRef(const char16_t* refStr, size_t refLen, |
| String16* outPackage, |
| String16* outType, |
| String16* outName, |
| const String16* defType = NULL, |
| const String16* defPackage = NULL, |
| const char** outErrorMsg = NULL, |
| bool* outPublicOnly = NULL); |
| |
| static bool stringToInt(const char16_t* s, size_t len, Res_value* outValue); |
| static bool stringToFloat(const char16_t* s, size_t len, Res_value* outValue); |
| |
| // Used with stringToValue. |
| class Accessor |
| { |
| public: |
| inline virtual ~Accessor() { } |
| |
| virtual const String16& getAssetsPackage() const = 0; |
| |
| virtual uint32_t getCustomResource(const String16& package, |
| const String16& type, |
| const String16& name) const = 0; |
| virtual uint32_t getCustomResourceWithCreation(const String16& package, |
| const String16& type, |
| const String16& name, |
| const bool createIfNeeded = false) = 0; |
| virtual uint32_t getRemappedPackage(uint32_t origPackage) const = 0; |
| virtual bool getAttributeType(uint32_t attrID, uint32_t* outType) = 0; |
| virtual bool getAttributeMin(uint32_t attrID, uint32_t* outMin) = 0; |
| virtual bool getAttributeMax(uint32_t attrID, uint32_t* outMax) = 0; |
| virtual bool getAttributeEnum(uint32_t attrID, |
| const char16_t* name, size_t nameLen, |
| Res_value* outValue) = 0; |
| virtual bool getAttributeFlags(uint32_t attrID, |
| const char16_t* name, size_t nameLen, |
| Res_value* outValue) = 0; |
| virtual uint32_t getAttributeL10N(uint32_t attrID) = 0; |
| virtual bool getLocalizationSetting() = 0; |
| virtual void reportError(void* accessorCookie, const char* fmt, ...) = 0; |
| }; |
| |
| // Convert a string to a resource value. Handles standard "@res", |
| // "#color", "123", and "0x1bd" types; performs escaping of strings. |
| // The resulting value is placed in 'outValue'; if it is a string type, |
| // 'outString' receives the string. If 'attrID' is supplied, the value is |
| // type checked against this attribute and it is used to perform enum |
| // evaluation. If 'acccessor' is supplied, it will be used to attempt to |
| // resolve resources that do not exist in this ResTable. If 'attrType' is |
| // supplied, the value will be type checked for this format if 'attrID' |
| // is not supplied or found. |
| bool stringToValue(Res_value* outValue, String16* outString, |
| const char16_t* s, size_t len, |
| bool preserveSpaces, bool coerceType, |
| uint32_t attrID = 0, |
| const String16* defType = NULL, |
| const String16* defPackage = NULL, |
| Accessor* accessor = NULL, |
| void* accessorCookie = NULL, |
| uint32_t attrType = ResTable_map::TYPE_ANY, |
| bool enforcePrivate = true) const; |
| |
| // Perform processing of escapes and quotes in a string. |
| static bool collectString(String16* outString, |
| const char16_t* s, size_t len, |
| bool preserveSpaces, |
| const char** outErrorMsg = NULL, |
| bool append = false); |
| |
| size_t getBasePackageCount() const; |
| const String16 getBasePackageName(size_t idx) const; |
| uint32_t getBasePackageId(size_t idx) const; |
| uint32_t getLastTypeIdForPackage(size_t idx) const; |
| |
| // Return the number of resource tables that the object contains. |
| size_t getTableCount() const; |
| // Return the values string pool for the resource table at the given |
| // index. This string pool contains all of the strings for values |
| // contained in the resource table -- that is the item values themselves, |
| // but not the names their entries or types. |
| const ResStringPool* getTableStringBlock(size_t index) const; |
| // Return unique cookie identifier for the given resource table. |
| int32_t getTableCookie(size_t index) const; |
| |
| const DynamicRefTable* getDynamicRefTableForCookie(int32_t cookie) const; |
| |
| // Return the configurations (ResTable_config) that we know about |
| void getConfigurations(Vector<ResTable_config>* configs, bool ignoreMipmap=false, |
| bool ignoreAndroidPackage=false, bool includeSystemConfigs=true) const; |
| |
| void getLocales(Vector<String8>* locales, bool includeSystemLocales=true, |
| bool mergeEquivalentLangs=false) const; |
| |
| // Generate an idmap. |
| // |
| // Return value: on success: NO_ERROR; caller is responsible for free-ing |
| // outData (using free(3)). On failure, any status_t value other than |
| // NO_ERROR; the caller should not free outData. |
| status_t createIdmap(const ResTable& targetResTable, |
| uint32_t targetCrc, uint32_t overlayCrc, |
| const char* targetPath, const char* overlayPath, |
| void** outData, size_t* outSize) const; |
| |
| static const size_t IDMAP_HEADER_SIZE_BYTES = 4 * sizeof(uint32_t) + 2 * 256; |
| static const uint32_t IDMAP_CURRENT_VERSION = 0x00000001; |
| |
| // Retrieve idmap meta-data. |
| // |
| // This function only requires the idmap header (the first |
| // IDMAP_HEADER_SIZE_BYTES) bytes of an idmap file. |
| static bool getIdmapInfo(const void* idmap, size_t size, |
| uint32_t* pVersion, |
| uint32_t* pTargetCrc, uint32_t* pOverlayCrc, |
| String8* pTargetPath, String8* pOverlayPath); |
| |
| void print(bool inclValues) const; |
| static String8 normalizeForOutput(const char* input); |
| |
| private: |
| struct Header; |
| struct Type; |
| struct Entry; |
| struct Package; |
| struct PackageGroup; |
| typedef Vector<Type*> TypeList; |
| |
| struct bag_set { |
| size_t numAttrs; // number in array |
| size_t availAttrs; // total space in array |
| uint32_t typeSpecFlags; |
| // Followed by 'numAttr' bag_entry structures. |
| }; |
| |
| /** |
| * Configuration dependent cached data. This must be cleared when the configuration is |
| * changed (setParameters). |
| */ |
| struct TypeCacheEntry { |
| TypeCacheEntry() : cachedBags(NULL) {} |
| |
| // Computed attribute bags for this type. |
| bag_set** cachedBags; |
| |
| // Pre-filtered list of configurations (per asset path) that match the parameters set on this |
| // ResTable. |
| Vector<std::shared_ptr<Vector<const ResTable_type*>>> filteredConfigs; |
| }; |
| |
| status_t addInternal(const void* data, size_t size, const void* idmapData, size_t idmapDataSize, |
| bool appAsLib, const int32_t cookie, bool copyData, bool isSystemAsset=false); |
| |
| ssize_t getResourcePackageIndex(uint32_t resID) const; |
| ssize_t getResourcePackageIndexFromPackage(uint8_t packageID) const; |
| |
| status_t getEntry( |
| const PackageGroup* packageGroup, int typeIndex, int entryIndex, |
| const ResTable_config* config, |
| Entry* outEntry) const; |
| |
| uint32_t findEntry(const PackageGroup* group, ssize_t typeIndex, const char16_t* name, |
| size_t nameLen, uint32_t* outTypeSpecFlags) const; |
| |
| status_t parsePackage( |
| const ResTable_package* const pkg, const Header* const header, |
| bool appAsLib, bool isSystemAsset); |
| |
| void print_value(const Package* pkg, const Res_value& value) const; |
| |
| template <typename Func> |
| void forEachConfiguration(bool ignoreMipmap, bool ignoreAndroidPackage, |
| bool includeSystemConfigs, const Func& f) const; |
| |
| mutable Mutex mLock; |
| |
| // Mutex that controls access to the list of pre-filtered configurations |
| // to check when looking up entries. |
| // When iterating over a bag, the mLock mutex is locked. While mLock is locked, |
| // we do resource lookups. |
| // Mutex is not reentrant, so we must use a different lock than mLock. |
| mutable Mutex mFilteredConfigLock; |
| |
| status_t mError; |
| |
| ResTable_config mParams; |
| |
| // Array of all resource tables. |
| Vector<Header*> mHeaders; |
| |
| // Array of packages in all resource tables. |
| Vector<PackageGroup*> mPackageGroups; |
| |
| // Mapping from resource package IDs to indices into the internal |
| // package array. |
| uint8_t mPackageMap[256]; |
| |
| uint8_t mNextPackageId; |
| }; |
| |
| } // namespace android |
| |
| #endif // _LIBS_UTILS_RESOURCE_TYPES_H |