ResourceFilter.cpp revision fab50875b98e8274ac8ee44b38ba42521bbbf1f9
1// 2// Copyright 2014 The Android Open Source Project 3// 4// Build resource files from raw assets. 5// 6 7#include "ResourceFilter.h" 8#include "AaptUtil.h" 9#include "AaptConfig.h" 10 11status_t 12WeakResourceFilter::parse(const String8& str) 13{ 14 Vector<String8> configStrs = AaptUtil::split(str, ','); 15 const size_t N = configStrs.size(); 16 mConfigs.clear(); 17 mConfigMask = 0; 18 mConfigs.resize(N); 19 for (size_t i = 0; i < N; i++) { 20 const String8& part = configStrs[i]; 21 if (part == "en_XA") { 22 mContainsPseudoAccented = true; 23 } else if (part == "ar_XB") { 24 mContainsPseudoBidi = true; 25 } 26 27 std::pair<ConfigDescription, uint32_t>& entry = mConfigs.editItemAt(i); 28 29 AaptLocaleValue val; 30 if (val.initFromFilterString(part)) { 31 // For backwards compatibility, we accept configurations that 32 // only specify locale in the standard 'en_US' format. 33 val.writeTo(&entry.first); 34 } else if (!AaptConfig::parse(part, &entry.first)) { 35 fprintf(stderr, "Invalid configuration: %s\n", part.string()); 36 return UNKNOWN_ERROR; 37 } 38 39 entry.second = mDefault.diff(entry.first); 40 41 // Ignore the version 42 entry.second &= ~ResTable_config::CONFIG_VERSION; 43 44 mConfigMask |= entry.second; 45 } 46 47 return NO_ERROR; 48} 49 50bool 51WeakResourceFilter::match(const ResTable_config& config) const 52{ 53 uint32_t mask = mDefault.diff(config); 54 if ((mConfigMask & mask) == 0) { 55 // The two configurations don't have any common axis. 56 return true; 57 } 58 59 const size_t N = mConfigs.size(); 60 for (size_t i = 0; i < N; i++) { 61 const std::pair<ConfigDescription, uint32_t>& entry = mConfigs[i]; 62 uint32_t diff = entry.first.diff(config); 63 if ((diff & entry.second) == 0) { 64 return true; 65 } else if ((diff & entry.second) == ResTable_config::CONFIG_LOCALE) { 66 // If the locales differ, but the languages are the same and 67 // the locale we are matching only has a language specified, 68 // we match. 69 if (config.language[0] && memcmp(config.language, entry.first.language, sizeof(config.language)) == 0) { 70 if (config.country[0] == 0) { 71 return true; 72 } 73 } 74 } 75 } 76 return false; 77} 78 79status_t 80StrongResourceFilter::parse(const String8& str) { 81 Vector<String8> configStrs = AaptUtil::split(str, ','); 82 ConfigDescription config; 83 mConfigs.clear(); 84 for (size_t i = 0; i < configStrs.size(); i++) { 85 if (!AaptConfig::parse(configStrs[i], &config)) { 86 fprintf(stderr, "Invalid configuration: %s\n", configStrs[i].string()); 87 return UNKNOWN_ERROR; 88 } 89 mConfigs.insert(config); 90 } 91 return NO_ERROR; 92} 93