11ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski/* 21ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski * Copyright (C) 2015 The Android Open Source Project 31ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski * 41ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski * Licensed under the Apache License, Version 2.0 (the "License"); 51ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski * you may not use this file except in compliance with the License. 61ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski * You may obtain a copy of the License at 71ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski * 81ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski * http://www.apache.org/licenses/LICENSE-2.0 91ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski * 101ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski * Unless required by applicable law or agreed to in writing, software 111ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski * distributed under the License is distributed on an "AS IS" BASIS, 121ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 131ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski * See the License for the specific language governing permissions and 141ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski * limitations under the License. 151ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski */ 161ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski 17ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski#include "link/Linkers.h" 18ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 19ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski#include <algorithm> 20ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 21ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski#include "android-base/logging.h" 22ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski 231ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski#include "ConfigDescription.h" 241ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski#include "ResourceTable.h" 251ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski#include "SdkConstants.h" 261ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski#include "ValueVisitor.h" 271ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski 281ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinskinamespace aapt { 291ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski 30c744ae8aca97edfb2422598ea620e8219449fa9bAdam Lesinskibool ShouldGenerateVersionedResource(const ResourceEntry* entry, const ConfigDescription& config, 31c744ae8aca97edfb2422598ea620e8219449fa9bAdam Lesinski const ApiVersion sdk_version_to_generate) { 32c744ae8aca97edfb2422598ea620e8219449fa9bAdam Lesinski // We assume the caller is trying to generate a version greater than the current configuration. 33ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski CHECK(sdk_version_to_generate > config.sdkVersion); 34c744ae8aca97edfb2422598ea620e8219449fa9bAdam Lesinski return sdk_version_to_generate < FindNextApiVersionForConfig(entry, config); 35c744ae8aca97edfb2422598ea620e8219449fa9bAdam Lesinski} 36cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski 37c744ae8aca97edfb2422598ea620e8219449fa9bAdam LesinskiApiVersion FindNextApiVersionForConfig(const ResourceEntry* entry, 38c744ae8aca97edfb2422598ea620e8219449fa9bAdam Lesinski const ConfigDescription& config) { 39ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski const auto end_iter = entry->values.end(); 40cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski auto iter = entry->values.begin(); 41ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski for (; iter != end_iter; ++iter) { 42cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski if ((*iter)->config == config) { 43cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski break; 44e4bb9eb5af5b0899dc0921d5580220b20e15bd5aAdam Lesinski } 45cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski } 46cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski 47cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski // The source config came from this list, so it should be here. 48ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski CHECK(iter != entry->values.end()); 49cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski ++iter; 50cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski 51c744ae8aca97edfb2422598ea620e8219449fa9bAdam Lesinski // The next configuration either only varies in sdkVersion, or it is completely different 52c744ae8aca97edfb2422598ea620e8219449fa9bAdam Lesinski // and therefore incompatible. If it is incompatible, we must generate the versioned resource. 53cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski 54c744ae8aca97edfb2422598ea620e8219449fa9bAdam Lesinski // NOTE: The ordering of configurations takes sdkVersion as higher precedence than other 55cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski // qualifiers, so we need to iterate through the entire list to be sure there 56cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski // are no higher sdk level versions of this resource. 57ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski ConfigDescription temp_config(config); 58ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski for (; iter != end_iter; ++iter) { 59ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski temp_config.sdkVersion = (*iter)->config.sdkVersion; 60ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (temp_config == (*iter)->config) { 61c744ae8aca97edfb2422598ea620e8219449fa9bAdam Lesinski // The two configs are the same, return the sdkVersion. 62c744ae8aca97edfb2422598ea620e8219449fa9bAdam Lesinski return (*iter)->config.sdkVersion; 631ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski } 64cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski } 651ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski 66c744ae8aca97edfb2422598ea620e8219449fa9bAdam Lesinski // Didn't find another config with a different sdk version, so return the highest possible value. 67c744ae8aca97edfb2422598ea620e8219449fa9bAdam Lesinski return std::numeric_limits<ApiVersion>::max(); 681ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski} 691ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski 70ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinskibool AutoVersioner::Consume(IAaptContext* context, ResourceTable* table) { 71cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski for (auto& package : table->packages) { 72cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski for (auto& type : package->types) { 73cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski if (type->type != ResourceType::kStyle) { 74cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski continue; 75cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski } 76cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski 77cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski for (auto& entry : type->entries) { 78cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski for (size_t i = 0; i < entry->values.size(); i++) { 79ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski ResourceConfigValue* config_value = entry->values[i].get(); 80ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (config_value->config.sdkVersion >= SDK_LOLLIPOP_MR1) { 81cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski // If this configuration is only used on L-MR1 then we don't need 82cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski // to do anything since we use private attributes since that 83cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski // version. 84cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski continue; 85cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski } 86cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski 87ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (Style* style = ValueCast<Style>(config_value->value.get())) { 88c744ae8aca97edfb2422598ea620e8219449fa9bAdam Lesinski Maybe<ApiVersion> min_sdk_stripped; 89cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski std::vector<Style::Entry> stripped; 90cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski 91cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski auto iter = style->entries.begin(); 92cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski while (iter != style->entries.end()) { 93ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski CHECK(bool(iter->key.id)) << "IDs must be assigned and linked"; 94cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski 95cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski // Find the SDK level that is higher than the configuration 96cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski // allows. 97c744ae8aca97edfb2422598ea620e8219449fa9bAdam Lesinski const ApiVersion sdk_level = FindAttributeSdkLevel(iter->key.id.value()); 98c744ae8aca97edfb2422598ea620e8219449fa9bAdam Lesinski if (sdk_level > std::max<ApiVersion>(config_value->config.sdkVersion, 1)) { 99cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski // Record that we are about to strip this. 100cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski stripped.emplace_back(std::move(*iter)); 101cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski 102cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski // We use the smallest SDK level to generate the new style. 103ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (min_sdk_stripped) { 104c744ae8aca97edfb2422598ea620e8219449fa9bAdam Lesinski min_sdk_stripped = std::min(min_sdk_stripped.value(), sdk_level); 105cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski } else { 106ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski min_sdk_stripped = sdk_level; 107cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski } 108cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski 109cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski // Erase this from this style. 110cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski iter = style->entries.erase(iter); 1111ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski continue; 112cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski } 113cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski ++iter; 1141ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski } 1151ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski 116ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (min_sdk_stripped && !stripped.empty()) { 117cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski // We found attributes from a higher SDK level. Check that 118cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski // there is no other defined resource for the version we want to 119cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski // generate. 120ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski if (ShouldGenerateVersionedResource(entry.get(), 121ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski config_value->config, 122ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski min_sdk_stripped.value())) { 123cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski // Let's create a new Style for this versioned resource. 124ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski ConfigDescription new_config(config_value->config); 125c744ae8aca97edfb2422598ea620e8219449fa9bAdam Lesinski new_config.sdkVersion = static_cast<uint16_t>(min_sdk_stripped.value()); 126cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski 127c744ae8aca97edfb2422598ea620e8219449fa9bAdam Lesinski std::unique_ptr<Style> new_style(style->Clone(&table->string_pool)); 128ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski new_style->SetComment(style->GetComment()); 129ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski new_style->SetSource(style->GetSource()); 130cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski 131cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski // Move the previously stripped attributes into this style. 132ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski new_style->entries.insert( 133ce5e56e243d262a9b65459c3bd0bb9eaadd40628Adam Lesinski new_style->entries.end(), 134cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski std::make_move_iterator(stripped.begin()), 135cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski std::make_move_iterator(stripped.end())); 136cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski 137cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski // Insert the new Resource into the correct place. 138c744ae8aca97edfb2422598ea620e8219449fa9bAdam Lesinski entry->FindOrCreateValue(new_config, {})->value = std::move(new_style); 139cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski } 1401ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski } 141cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski } 1421ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski } 143cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski } 1441ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski } 145cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski } 146cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski return true; 1471ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski} 1481ab598f46c3ff520a67f9d80194847741f3467abAdam Lesinski 149cacb28f2d60858106e2819cc7d95a65e8bda890bAdam Lesinski} // namespace aapt 150