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android / platform / frameworks / base / 95af0c14a64ef264d2b362ded4ca2b5a169d1066 / . / include / utils / ResourceTypes.h
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/*
* 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 <utils/Asset.h>
#include <utils/ByteOrder.h>
#include <utils/Errors.h>
#include <utils/String16.h>
#include <utils/Vector.h>
#include <utils/threads.h>
#include <stdint.h>
#include <sys/types.h>
#include <android/configuration.h>
namespace android {
/** ********************************************************************
* 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 point to 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 array pointed to by the colors field lists 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 Res_png_9patch
{
Res_png_9patch() : wasDeserialized(false), xDivs(NULL),
yDivs(NULL), colors(NULL) { }
int8_t wasDeserialized;
int8_t numXDivs;
int8_t numYDivs;
int8_t numColors;
// 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.
// Note: allocation/free of these pointers is left to the caller.
int32_t* xDivs;
int32_t* yDivs;
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
};
// Note: allocation/free of this pointer is left to the caller.
uint32_t* colors;
// 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
void* serialize();
// Serialize/Marshall the patch data
void serialize(void* outData);
// Deserialize/Unmarshall the patch data
static Res_png_9patch* deserialize(const void* data);
// Compute the size of the serialized data structure
size_t serializedSize();
};
/** ********************************************************************
* 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
};
/**
* 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))
#define Res_MAXPACKAGE 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 {
// Contains no data.
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,
// 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
};
// The data for this item, as interpreted according to dataType.
uint32_t 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);
~ResStringPool();
status_t setTo(const void* data, size_t size, bool copyData=false);
status_t getError() const;
void uninit();
inline const char16_t* stringAt(const ResStringPool_ref& ref, size_t* outLen) const {
return stringAt(ref.index, outLen);
}
const char16_t* stringAt(size_t idx, size_t* outLen) const;
const char* string8At(size_t idx, size_t* outLen) const;
const ResStringPool_span* styleAt(const ResStringPool_ref& ref) const;
const ResStringPool_span* styleAt(size_t idx) const;
ssize_t indexOfString(const char16_t* str, size_t strLen) const;
size_t size() const;
#ifndef HAVE_ANDROID_OS
bool isUTF8() const;
#endif
private:
status_t mError;
void* mOwnedData;
const ResStringPool_header* mHeader;
size_t mSize;
mutable Mutex mDecodeLock;
const uint32_t* mEntries;
const uint32_t* mEntryStyles;
const void* mStrings;
char16_t** mCache;
uint32_t mStringPoolSize; // number of uint16_t
const uint32_t* mStyles;
uint32_t mStylePoolSize; // number of uint32_t
};
/** ********************************************************************
* 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:
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 uint16_t* getComment(size_t* outLen) const;
uint32_t getLineNumber() const;
// This is available for TEXT:
int32_t getTextID() const;
const uint16_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 uint16_t* getNamespacePrefix(size_t* outLen) const;
int32_t getNamespaceUriID() const;
const uint16_t* getNamespaceUri(size_t* outLen) const;
// These are available for START_TAG and END_TAG:
int32_t getElementNamespaceID() const;
const uint16_t* getElementNamespace(size_t* outLen) const;
int32_t getElementNameID() const;
const uint16_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 uint16_t* getAttributeNamespace(size_t idx, size_t* outLen) const;
int32_t getAttributeNameID(size_t idx) const;
const uint16_t* getAttributeName(size_t idx, size_t* outLen) const;
uint32_t getAttributeNameResID(size_t idx) const;
int32_t getAttributeValueStringID(size_t idx) const;
const uint16_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);
private:
friend class ResXMLTree;
event_code_t nextNode();
const ResXMLTree& mTree;
event_code_t mEventCode;
const ResXMLTree_node* mCurNode;
const void* mCurExt;
};
/**
* Convenience class for accessing data in a ResXMLTree resource.
*/
class ResXMLTree : public ResXMLParser
{
public:
ResXMLTree();
ResXMLTree(const void* data, size_t size, bool copyData=false);
~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;
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.
* * 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.
char16_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;
};
/**
* 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 {
// \0\0 means "any". Otherwise, en, fr, etc.
char language[2];
// \0\0 means "any". Otherwise, US, CA, etc.
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_HIGH = ACONFIGURATION_DENSITY_HIGH,
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,
};
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,
// 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;
uint8_t screenConfigPad1;
uint8_t screenConfigPad2;
};
uint32_t screenConfig;
};
inline void copyFromDeviceNoSwap(const ResTable_config& o) {
const size_t size = dtohl(o.size);
if (size >= sizeof(ResTable_config)) {
*this = o;
} else {
memcpy(this, &o, size);
memset(((uint8_t*)this)+size, 0, sizeof(ResTable_config)-size);
}
}
inline void copyFromDtoH(const ResTable_config& o) {
copyFromDeviceNoSwap(o);
size = sizeof(ResTable_config);
mcc = dtohs(mcc);
mnc = dtohs(mnc);
density = dtohs(density);
screenWidth = dtohs(screenWidth);
screenHeight = dtohs(screenHeight);
sdkVersion = dtohs(sdkVersion);
minorVersion = dtohs(minorVersion);
}
inline void swapHtoD() {
size = htodl(size);
mcc = htods(mcc);
mnc = htods(mnc);
density = htods(density);
screenWidth = htods(screenWidth);
screenHeight = htods(screenHeight);
sdkVersion = htods(sdkVersion);
minorVersion = htods(minorVersion);
}
inline int compare(const ResTable_config& o) const {
int32_t diff = (int32_t)(imsi - o.imsi);
if (diff != 0) return diff;
diff = (int32_t)(locale - o.locale);
if (diff != 0) return diff;
diff = (int32_t)(screenType - o.screenType);
if (diff != 0) return diff;
diff = (int32_t)(input - o.input);
if (diff != 0) return diff;
diff = (int32_t)(screenSize - o.screenSize);
if (diff != 0) return diff;
diff = (int32_t)(version - o.version);
if (diff != 0) return diff;
diff = (int32_t)(screenLayout - o.screenLayout);
if (diff != 0) return diff;
diff = (int32_t)(uiMode - o.uiMode);
return (int)diff;
}
// 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_MCC,
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_VERSION = ACONFIGURATION_VERSION,
CONFIG_SCREEN_LAYOUT = ACONFIGURATION_SCREEN_LAYOUT,
CONFIG_UI_MODE = ACONFIGURATION_UI_MODE
};
// Compare two configuration, returning CONFIG_* flags set for each value
// that is different.
inline int diff(const ResTable_config& o) const {
int diffs = 0;
if (mcc != o.mcc) diffs |= CONFIG_MCC;
if (mnc != o.mnc) diffs |= CONFIG_MNC;
if (locale != o.locale) diffs |= CONFIG_LOCALE;
if (orientation != o.orientation) diffs |= CONFIG_ORIENTATION;
if (density != o.density) diffs |= CONFIG_DENSITY;
if (touchscreen != o.touchscreen) diffs |= CONFIG_TOUCHSCREEN;
if (((inputFlags^o.inputFlags)&(MASK_KEYSHIDDEN|MASK_NAVHIDDEN)) != 0)
diffs |= CONFIG_KEYBOARD_HIDDEN;
if (keyboard != o.keyboard) diffs |= CONFIG_KEYBOARD;
if (navigation != o.navigation) diffs |= CONFIG_NAVIGATION;
if (screenSize != o.screenSize) diffs |= CONFIG_SCREEN_SIZE;
if (version != o.version) diffs |= CONFIG_VERSION;
if (screenLayout != o.screenLayout) diffs |= CONFIG_SCREEN_LAYOUT;
if (uiMode != o.uiMode) diffs |= CONFIG_UI_MODE;
return diffs;
}
// Return true if 'this' is more specific than 'o'.
inline bool
isMoreSpecificThan(const ResTable_config& o) const {
// The order of the following tests defines the importance of one
// configuration parameter over another. Those tests first are more
// important, trumping any values in those following them.
if (imsi || o.imsi) {
if (mcc != o.mcc) {
if (!mcc) return false;
if (!o.mcc) return true;
}
if (mnc != o.mnc) {
if (!mnc) return false;
if (!o.mnc) return true;
}
}
if (locale || o.locale) {
if (language[0] != o.language[0]) {
if (!language[0]) return false;
if (!o.language[0]) return true;
}
if (country[0] != o.country[0]) {
if (!country[0]) return false;
if (!o.country[0]) return true;
}
}
if (screenLayout || o.screenLayout) {
if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0) {
if (!(screenLayout & MASK_SCREENSIZE)) return false;
if (!(o.screenLayout & MASK_SCREENSIZE)) return true;
}
if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0) {
if (!(screenLayout & MASK_SCREENLONG)) return false;
if (!(o.screenLayout & MASK_SCREENLONG)) return true;
}
}
if (orientation != o.orientation) {
if (!orientation) return false;
if (!o.orientation) return true;
}
if (uiMode || o.uiMode) {
if (((uiMode^o.uiMode) & MASK_UI_MODE_TYPE) != 0) {
if (!(uiMode & MASK_UI_MODE_TYPE)) return false;
if (!(o.uiMode & MASK_UI_MODE_TYPE)) return true;
}
if (((uiMode^o.uiMode) & MASK_UI_MODE_NIGHT) != 0) {
if (!(uiMode & MASK_UI_MODE_NIGHT)) return false;
if (!(o.uiMode & MASK_UI_MODE_NIGHT)) return true;
}
}
// density is never 'more specific'
// as the default just equals 160
if (touchscreen != o.touchscreen) {
if (!touchscreen) return false;
if (!o.touchscreen) return true;
}
if (input || o.input) {
if (((inputFlags^o.inputFlags) & MASK_KEYSHIDDEN) != 0) {
if (!(inputFlags & MASK_KEYSHIDDEN)) return false;
if (!(o.inputFlags & MASK_KEYSHIDDEN)) return true;
}
if (((inputFlags^o.inputFlags) & MASK_NAVHIDDEN) != 0) {
if (!(inputFlags & MASK_NAVHIDDEN)) return false;
if (!(o.inputFlags & MASK_NAVHIDDEN)) return true;
}
if (keyboard != o.keyboard) {
if (!keyboard) return false;
if (!o.keyboard) return true;
}
if (navigation != o.navigation) {
if (!navigation) return false;
if (!o.navigation) return true;
}
}
if (screenSize || o.screenSize) {
if (screenWidth != o.screenWidth) {
if (!screenWidth) return false;
if (!o.screenWidth) return true;
}
if (screenHeight != o.screenHeight) {
if (!screenHeight) return false;
if (!o.screenHeight) return true;
}
}
if (version || o.version) {
if (sdkVersion != o.sdkVersion) {
if (!sdkVersion) return false;
if (!o.sdkVersion) return true;
}
if (minorVersion != o.minorVersion) {
if (!minorVersion) return false;
if (!o.minorVersion) return true;
}
}
return false;
}
// 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).
inline bool
isBetterThan(const ResTable_config& o,
const ResTable_config* requested) const {
if (requested) {
if (imsi || o.imsi) {
if ((mcc != o.mcc) && requested->mcc) {
return (mcc);
}
if ((mnc != o.mnc) && requested->mnc) {
return (mnc);
}
}
if (locale || o.locale) {
if ((language[0] != o.language[0]) && requested->language[0]) {
return (language[0]);
}
if ((country[0] != o.country[0]) && requested->country[0]) {
return (country[0]);
}
}
if (screenLayout || o.screenLayout) {
if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0
&& (requested->screenLayout & MASK_SCREENSIZE)) {
// A little backwards compatibility here: undefined is
// considered equivalent to normal. But only if the
// requested size is at least normal; otherwise, small
// is better than the default.
int mySL = (screenLayout & MASK_SCREENSIZE);
int oSL = (o.screenLayout & MASK_SCREENSIZE);
int fixedMySL = mySL;
int fixedOSL = oSL;
if ((requested->screenLayout & MASK_SCREENSIZE) >= SCREENSIZE_NORMAL) {
if (fixedMySL == 0) fixedMySL = SCREENSIZE_NORMAL;
if (fixedOSL == 0) fixedOSL = SCREENSIZE_NORMAL;
}
// For screen size, the best match is the one that is
// closest to the requested screen size, but not over
// (the not over part is dealt with in match() below).
if (fixedMySL == fixedOSL) {
// If the two are the same, but 'this' is actually
// undefined, then the other is really a better match.
if (mySL == 0) return false;
return true;
}
return fixedMySL >= fixedOSL;
}
if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0
&& (requested->screenLayout & MASK_SCREENLONG)) {
return (screenLayout & MASK_SCREENLONG);
}
}
if ((orientation != o.orientation) && requested->orientation) {
return (orientation);
}
if (uiMode || o.uiMode) {
if (((uiMode^o.uiMode) & MASK_UI_MODE_TYPE) != 0
&& (requested->uiMode & MASK_UI_MODE_TYPE)) {
return (uiMode & MASK_UI_MODE_TYPE);
}
if (((uiMode^o.uiMode) & MASK_UI_MODE_NIGHT) != 0
&& (requested->uiMode & MASK_UI_MODE_NIGHT)) {
return (uiMode & MASK_UI_MODE_NIGHT);
}
}
if (screenType || o.screenType) {
if (density != o.density) {
// density is tough. Any density is potentially useful
// because the system will scale it. Scaling down
// is generally better than scaling up.
// Default density counts as 160dpi (the system default)
// TODO - remove 160 constants
int h = (density?density:160);
int l = (o.density?o.density:160);
bool bImBigger = true;
if (l > h) {
int t = h;
h = l;
l = t;
bImBigger = false;
}
int reqValue = (requested->density?requested->density:160);
if (reqValue >= h) {
// requested value higher than both l and h, give h
return bImBigger;
}
if (l >= reqValue) {
// requested value lower than both l and h, give l
return !bImBigger;
}
// saying that scaling down is 2x better than up
if (((2 * l) - reqValue) * h > reqValue * reqValue) {
return !bImBigger;
} else {
return bImBigger;
}
}
if ((touchscreen != o.touchscreen) && requested->touchscreen) {
return (touchscreen);
}
}
if (input || o.input) {
const int keysHidden = inputFlags & MASK_KEYSHIDDEN;
const int oKeysHidden = o.inputFlags & MASK_KEYSHIDDEN;
if (keysHidden != oKeysHidden) {
const int reqKeysHidden =
requested->inputFlags & MASK_KEYSHIDDEN;
if (reqKeysHidden) {
if (!keysHidden) return false;
if (!oKeysHidden) return true;
// For compatibility, we count KEYSHIDDEN_NO as being
// the same as KEYSHIDDEN_SOFT. Here we disambiguate
// these by making an exact match more specific.
if (reqKeysHidden == keysHidden) return true;
if (reqKeysHidden == oKeysHidden) return false;
}
}
const int navHidden = inputFlags & MASK_NAVHIDDEN;
const int oNavHidden = o.inputFlags & MASK_NAVHIDDEN;
if (navHidden != oNavHidden) {
const int reqNavHidden =
requested->inputFlags & MASK_NAVHIDDEN;
if (reqNavHidden) {
if (!navHidden) return false;
if (!oNavHidden) return true;
}
}
if ((keyboard != o.keyboard) && requested->keyboard) {
return (keyboard);
}
if ((navigation != o.navigation) && requested->navigation) {
return (navigation);
}
}
if (screenSize || o.screenSize) {
if ((screenWidth != o.screenWidth) && requested->screenWidth) {
return (screenWidth);
}
if ((screenHeight != o.screenHeight) &&
requested->screenHeight) {
return (screenHeight);
}
}
if (version || o.version) {
if ((sdkVersion != o.sdkVersion) && requested->sdkVersion) {
return (sdkVersion > o.sdkVersion);
}
if ((minorVersion != o.minorVersion) &&
requested->minorVersion) {
return (minorVersion);
}
}
return false;
}
return isMoreSpecificThan(o);
}
// 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
inline bool match(const ResTable_config& settings) const {
if (imsi != 0) {
if ((settings.mcc != 0 && mcc != 0
&& mcc != settings.mcc) ||
(settings.mcc == 0 && mcc != 0)) {
return false;
}
if ((settings.mnc != 0 && mnc != 0
&& mnc != settings.mnc) ||
(settings.mnc == 0 && mnc != 0)) {
return false;
}
}
if (locale != 0) {
if (settings.language[0] != 0 && language[0] != 0
&& (language[0] != settings.language[0]
|| language[1] != settings.language[1])) {
return false;
}
if (settings.country[0] != 0 && country[0] != 0
&& (country[0] != settings.country[0]
|| country[1] != settings.country[1])) {
return false;
}
}
if (screenConfig != 0) {
const int screenSize = screenLayout&MASK_SCREENSIZE;
const int setScreenSize = settings.screenLayout&MASK_SCREENSIZE;
// Any screen sizes for larger screens than the setting do not
// match.
if ((setScreenSize != 0 && screenSize != 0
&& screenSize > setScreenSize) ||
(setScreenSize == 0 && screenSize != 0)) {
return false;
}
const int screenLong = screenLayout&MASK_SCREENLONG;
const int setScreenLong = settings.screenLayout&MASK_SCREENLONG;
if (setScreenLong != 0 && screenLong != 0
&& screenLong != setScreenLong) {
return false;
}
const int uiModeType = uiMode&MASK_UI_MODE_TYPE;
const int setUiModeType = settings.uiMode&MASK_UI_MODE_TYPE;
if (setUiModeType != 0 && uiModeType != 0
&& uiModeType != setUiModeType) {
return false;
}
const int uiModeNight = uiMode&MASK_UI_MODE_NIGHT;
const int setUiModeNight = settings.uiMode&MASK_UI_MODE_NIGHT;
if (setUiModeNight != 0 && uiModeNight != 0
&& uiModeNight != setUiModeNight) {
return false;
}
}
if (screenType != 0) {
if (settings.orientation != 0 && orientation != 0
&& orientation != settings.orientation) {
return false;
}
// density always matches - we can scale it. See isBetterThan
if (settings.touchscreen != 0 && touchscreen != 0
&& touchscreen != settings.touchscreen) {
return false;
}
}
if (input != 0) {
const int keysHidden = inputFlags&MASK_KEYSHIDDEN;
const int setKeysHidden = settings.inputFlags&MASK_KEYSHIDDEN;
if (setKeysHidden != 0 && keysHidden != 0
&& keysHidden != setKeysHidden) {
// For compatibility, we count a request for KEYSHIDDEN_NO as also
// matching the more recent KEYSHIDDEN_SOFT. Basically
// KEYSHIDDEN_NO means there is some kind of keyboard available.
//LOGI("Matching keysHidden: have=%d, config=%d\n", keysHidden, setKeysHidden);
if (keysHidden != KEYSHIDDEN_NO || setKeysHidden != KEYSHIDDEN_SOFT) {
//LOGI("No match!");
return false;
}
}
const int navHidden = inputFlags&MASK_NAVHIDDEN;
const int setNavHidden = settings.inputFlags&MASK_NAVHIDDEN;
if (setNavHidden != 0 && navHidden != 0
&& navHidden != setNavHidden) {
return false;
}
if (settings.keyboard != 0 && keyboard != 0
&& keyboard != settings.keyboard) {
return false;
}
if (settings.navigation != 0 && navigation != 0
&& navigation != settings.navigation) {
return false;
}
}
if (screenSize != 0) {
if (settings.screenWidth != 0 && screenWidth != 0
&& screenWidth != settings.screenWidth) {
return false;
}
if (settings.screenHeight != 0 && screenHeight != 0
&& screenHeight != settings.screenHeight) {
return false;
}
}
if (version != 0) {
if (settings.sdkVersion != 0 && sdkVersion != 0
&& sdkVersion > settings.sdkVersion) {
return false;
}
if (settings.minorVersion != 0 && minorVersion != 0
&& minorVersion != settings.minorVersion) {
return false;
}
}
return true;
}
void getLocale(char str[6]) const {
memset(str, 0, 6);
if (language[0]) {
str[0] = language[0];
str[1] = language[1];
if (country[0]) {
str[2] = '_';
str[3] = country[0];
str[4] = country[1];
}
}
}
String8 toString() const {
char buf[200];
sprintf(buf, "imsi=%d/%d lang=%c%c reg=%c%c orient=%d touch=%d dens=%d "
"kbd=%d nav=%d input=%d scrnW=%d scrnH=%d sz=%d long=%d "
"ui=%d night=%d vers=%d.%d",
mcc, mnc,
language[0] ? language[0] : '-', language[1] ? language[1] : '-',
country[0] ? country[0] : '-', country[1] ? country[1] : '-',
orientation, touchscreen, density, keyboard, navigation, inputFlags,
screenWidth, screenHeight,
screenLayout&MASK_SCREENSIZE, screenLayout&MASK_SCREENLONG,
uiMode&MASK_UI_MODE_TYPE, uiMode&MASK_UI_MODE_NIGHT,
sdkVersion, minorVersion);
return String8(buf);
}
};
/**
* 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
* configuation 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 {
// Additional flag indicating an entry is public.
SPEC_PUBLIC = 0x40000000
};
};
/**
* A collection of resource entries for a particular resource data
* type. 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.
*
* 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;
// Must be 0.
uint8_t res0;
// Must be 0.
uint16_t res1;
// 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.
ResTable_config config;
};
/**
* 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
};
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.
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;
};
/**
* Convenience class for accessing data in a ResTable resource.
*/
class ResTable
{
public:
ResTable();
ResTable(const void* data, size_t size, void* cookie,
bool copyData=false);
~ResTable();
status_t add(const void* data, size_t size, void* cookie,
bool copyData=false);
status_t add(Asset* asset, void* cookie,
bool copyData=false);
status_t add(ResTable* src);
status_t getError() const;
void uninit();
struct resource_name
{
const char16_t* package;
size_t packageLen;
const char16_t* type;
size_t typeLen;
const char16_t* name;
size_t nameLen;
};
bool getResourceName(uint32_t resID, resource_name* outName) 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,
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, 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);
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:
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);
/**
* 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;
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 {
size_t numTypes;
type_info types[];
};
void free_package(package_info* pi);
package_info* copy_package(package_info* pi);
const ResTable& mTable;
package_info* mPackages[Res_MAXPACKAGE];
};
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 uint16_t* refStr, size_t refLen,
String16* outPackage,
String16* outType,
String16* outName,
const String16* defType = NULL,
const String16* defPackage = NULL,
const char** outErrorMsg = 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 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 char16_t* getBasePackageName(size_t idx) const;
uint32_t getBasePackageId(size_t idx) const;
size_t getTableCount() const;
const ResStringPool* getTableStringBlock(size_t index) const;
void* getTableCookie(size_t index) const;
// Return the configurations (ResTable_config) that we know about
void getConfigurations(Vector<ResTable_config>* configs) const;
void getLocales(Vector<String8>* locales) const;
#ifndef HAVE_ANDROID_OS
void print(bool inclValues) const;
#endif
private:
struct Header;
struct Type;
struct Package;
struct PackageGroup;
struct bag_set;
status_t add(const void* data, size_t size, void* cookie,
Asset* asset, bool copyData);
ssize_t getResourcePackageIndex(uint32_t resID) const;
ssize_t getEntry(
const Package* package, int typeIndex, int entryIndex,
const ResTable_config* config,
const ResTable_type** outType, const ResTable_entry** outEntry,
const Type** outTypeClass) const;
status_t parsePackage(
const ResTable_package* const pkg, const Header* const header);
void print_value(const Package* pkg, const Res_value& value) const;
mutable Mutex mLock;
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];
};
} // namespace android
#endif // _LIBS_UTILS_RESOURCE_TYPES_H