| // |
| // Copyright 2014 The Android Open Source Project |
| // |
| // Build resource files from raw assets. |
| // |
| |
| #include "ResourceFilter.h" |
| #include "AaptUtil.h" |
| #include "AaptConfig.h" |
| |
| status_t |
| WeakResourceFilter::parse(const String8& str) |
| { |
| Vector<String8> configStrs = AaptUtil::split(str, ','); |
| const size_t N = configStrs.size(); |
| mConfigs.clear(); |
| mConfigMask = 0; |
| mConfigs.resize(N); |
| for (size_t i = 0; i < N; i++) { |
| const String8& part = configStrs[i]; |
| if (part == "en_XA") { |
| mContainsPseudoAccented = true; |
| } else if (part == "ar_XB") { |
| mContainsPseudoBidi = true; |
| } |
| |
| std::pair<ConfigDescription, uint32_t>& entry = mConfigs.editItemAt(i); |
| |
| AaptLocaleValue val; |
| if (val.initFromFilterString(part)) { |
| // For backwards compatibility, we accept configurations that |
| // only specify locale in the standard 'en_US' format. |
| val.writeTo(&entry.first); |
| } else if (!AaptConfig::parse(part, &entry.first)) { |
| fprintf(stderr, "Invalid configuration: %s\n", part.string()); |
| return UNKNOWN_ERROR; |
| } |
| |
| entry.second = mDefault.diff(entry.first); |
| |
| // Ignore the version |
| entry.second &= ~ResTable_config::CONFIG_VERSION; |
| |
| // Ignore any densities. Those are best handled in --preferred-density |
| if ((entry.second & ResTable_config::CONFIG_DENSITY) != 0) { |
| fprintf(stderr, "warning: ignoring flag -c %s. Use --preferred-density instead.\n", entry.first.toString().string()); |
| entry.first.density = 0; |
| entry.second &= ~ResTable_config::CONFIG_DENSITY; |
| } |
| |
| mConfigMask |= entry.second; |
| } |
| |
| return NO_ERROR; |
| } |
| |
| bool |
| WeakResourceFilter::match(const ResTable_config& config) const |
| { |
| uint32_t mask = mDefault.diff(config); |
| if ((mConfigMask & mask) == 0) { |
| // The two configurations don't have any common axis. |
| return true; |
| } |
| |
| uint32_t matchedAxis = 0x0; |
| const size_t N = mConfigs.size(); |
| for (size_t i = 0; i < N; i++) { |
| const std::pair<ConfigDescription, uint32_t>& entry = mConfigs[i]; |
| uint32_t diff = entry.first.diff(config); |
| if ((diff & entry.second) == 0) { |
| // Mark the axis that was matched. |
| matchedAxis |= entry.second; |
| } else if ((diff & entry.second) == ResTable_config::CONFIG_LOCALE) { |
| // If the locales differ, but the languages are the same and |
| // the locale we are matching only has a language specified, |
| // we match. |
| if (config.language[0] && |
| memcmp(config.language, entry.first.language, sizeof(config.language)) == 0) { |
| if (config.country[0] == 0) { |
| matchedAxis |= ResTable_config::CONFIG_LOCALE; |
| } |
| } |
| } else if ((diff & entry.second) == ResTable_config::CONFIG_SMALLEST_SCREEN_SIZE) { |
| // Special case if the smallest screen width doesn't match. We check that the |
| // config being matched has a smaller screen width than the filter specified. |
| if (config.smallestScreenWidthDp != 0 && |
| config.smallestScreenWidthDp < entry.first.smallestScreenWidthDp) { |
| matchedAxis |= ResTable_config::CONFIG_SMALLEST_SCREEN_SIZE; |
| } |
| } |
| } |
| return matchedAxis == (mConfigMask & mask); |
| } |
| |
| status_t |
| StrongResourceFilter::parse(const String8& str) { |
| Vector<String8> configStrs = AaptUtil::split(str, ','); |
| ConfigDescription config; |
| mConfigs.clear(); |
| for (size_t i = 0; i < configStrs.size(); i++) { |
| if (!AaptConfig::parse(configStrs[i], &config)) { |
| fprintf(stderr, "Invalid configuration: %s\n", configStrs[i].string()); |
| return UNKNOWN_ERROR; |
| } |
| mConfigs.insert(config); |
| } |
| return NO_ERROR; |
| } |