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Diffstat (limited to 'tools/aapt2/BindingXmlPullParser.cpp')
| -rw-r--r-- | tools/aapt2/BindingXmlPullParser.cpp | 268 |
1 files changed, 0 insertions, 268 deletions
diff --git a/tools/aapt2/BindingXmlPullParser.cpp b/tools/aapt2/BindingXmlPullParser.cpp deleted file mode 100644 index 4b7a656deac6..000000000000 --- a/tools/aapt2/BindingXmlPullParser.cpp +++ /dev/null @@ -1,268 +0,0 @@ -/* - * Copyright (C) 2015 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. - */ - -#include "BindingXmlPullParser.h" -#include "Util.h" - -#include <iostream> -#include <sstream> -#include <string> -#include <vector> - -namespace aapt { - -constexpr const char16_t* kBindingNamespaceUri = u"http://schemas.android.com/apk/binding"; -constexpr const char16_t* kAndroidNamespaceUri = u"http://schemas.android.com/apk/res/android"; -constexpr const char16_t* kVariableTagName = u"variable"; -constexpr const char* kBindingTagPrefix = "android:binding_"; - -BindingXmlPullParser::BindingXmlPullParser(const std::shared_ptr<XmlPullParser>& parser) : - mParser(parser), mOverride(false), mNextTagId(0) { -} - -bool BindingXmlPullParser::readVariableDeclaration() { - VarDecl var; - - const auto endAttrIter = mParser->endAttributes(); - for (auto attrIter = mParser->beginAttributes(); attrIter != endAttrIter; ++attrIter) { - if (!attrIter->namespaceUri.empty()) { - continue; - } - - if (attrIter->name == u"name") { - var.name = util::utf16ToUtf8(attrIter->value); - } else if (attrIter->name == u"type") { - var.type = util::utf16ToUtf8(attrIter->value); - } - } - - XmlPullParser::skipCurrentElement(mParser.get()); - - if (var.name.empty()) { - mLastError = "variable declaration missing name"; - return false; - } - - if (var.type.empty()) { - mLastError = "variable declaration missing type"; - return false; - } - - mVarDecls.push_back(std::move(var)); - return true; -} - -bool BindingXmlPullParser::readExpressions() { - mOverride = true; - std::vector<XmlPullParser::Attribute> expressions; - std::string idValue; - - const auto endAttrIter = mParser->endAttributes(); - for (auto attr = mParser->beginAttributes(); attr != endAttrIter; ++attr) { - if (attr->namespaceUri == kAndroidNamespaceUri && attr->name == u"id") { - idValue = util::utf16ToUtf8(attr->value); - } else { - StringPiece16 value = util::trimWhitespace(attr->value); - if (util::stringStartsWith<char16_t>(value, u"@{") && - util::stringEndsWith<char16_t>(value, u"}")) { - // This is attribute's value is an expression of the form - // @{expression}. We need to capture the expression inside. - expressions.push_back(XmlPullParser::Attribute{ - attr->namespaceUri, - attr->name, - value.substr(2, value.size() - 3).toString() - }); - } else { - // This is a normal attribute, use as is. - mAttributes.emplace_back(*attr); - } - } - } - - // Check if we have any expressions. - if (!expressions.empty()) { - // We have expressions, so let's assign the target a tag number - // and add it to our targets list. - int32_t targetId = mNextTagId++; - mTargets.push_back(Target{ - util::utf16ToUtf8(mParser->getElementName()), - idValue, - targetId, - std::move(expressions) - }); - - std::stringstream numGen; - numGen << kBindingTagPrefix << targetId; - mAttributes.push_back(XmlPullParser::Attribute{ - std::u16string(kAndroidNamespaceUri), - std::u16string(u"tag"), - util::utf8ToUtf16(numGen.str()) - }); - } - return true; -} - -XmlPullParser::Event BindingXmlPullParser::next() { - // Clear old state in preparation for the next event. - mOverride = false; - mAttributes.clear(); - - while (true) { - Event event = mParser->next(); - if (event == Event::kStartElement) { - if (mParser->getElementNamespace().empty() && - mParser->getElementName() == kVariableTagName) { - // This is a variable tag. Record data from it, and - // then discard the entire element. - if (!readVariableDeclaration()) { - // mLastError is set, so getEvent will return kBadDocument. - return getEvent(); - } - continue; - } else { - // Check for expressions of the form @{} in attribute text. - const auto endAttrIter = mParser->endAttributes(); - for (auto attr = mParser->beginAttributes(); attr != endAttrIter; ++attr) { - StringPiece16 value = util::trimWhitespace(attr->value); - if (util::stringStartsWith<char16_t>(value, u"@{") && - util::stringEndsWith<char16_t>(value, u"}")) { - if (!readExpressions()) { - return getEvent(); - } - break; - } - } - } - } else if (event == Event::kStartNamespace || event == Event::kEndNamespace) { - if (mParser->getNamespaceUri() == kBindingNamespaceUri) { - // Skip binding namespace tags. - continue; - } - } - return event; - } - return Event::kBadDocument; -} - -bool BindingXmlPullParser::writeToFile(std::ostream& out) const { - out << "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"; - out << "<Layout directory=\"\" layout=\"\" layoutId=\"\">\n"; - - // Write the variables. - out << " <Variables>\n"; - for (const VarDecl& v : mVarDecls) { - out << " <entries name=\"" << v.name << "\" type=\"" << v.type << "\"/>\n"; - } - out << " </Variables>\n"; - - // Write the imports. - - std::stringstream tagGen; - - // Write the targets. - out << " <Targets>\n"; - for (const Target& t : mTargets) { - tagGen.str({}); - tagGen << kBindingTagPrefix << t.tagId; - out << " <Target boundClass=\"" << t.className << "\" id=\"" << t.id - << "\" tag=\"" << tagGen.str() << "\">\n"; - out << " <Expressions>\n"; - for (const XmlPullParser::Attribute& a : t.expressions) { - out << " <Expression attribute=\"" << a.namespaceUri << ":" << a.name - << "\" text=\"" << a.value << "\"/>\n"; - } - out << " </Expressions>\n"; - out << " </Target>\n"; - } - out << " </Targets>\n"; - - out << "</Layout>\n"; - return bool(out); -} - -XmlPullParser::const_iterator BindingXmlPullParser::beginAttributes() const { - if (mOverride) { - return mAttributes.begin(); - } - return mParser->beginAttributes(); -} - -XmlPullParser::const_iterator BindingXmlPullParser::endAttributes() const { - if (mOverride) { - return mAttributes.end(); - } - return mParser->endAttributes(); -} - -size_t BindingXmlPullParser::getAttributeCount() const { - if (mOverride) { - return mAttributes.size(); - } - return mParser->getAttributeCount(); -} - -XmlPullParser::Event BindingXmlPullParser::getEvent() const { - if (!mLastError.empty()) { - return Event::kBadDocument; - } - return mParser->getEvent(); -} - -const std::string& BindingXmlPullParser::getLastError() const { - if (!mLastError.empty()) { - return mLastError; - } - return mParser->getLastError(); -} - -const std::u16string& BindingXmlPullParser::getComment() const { - return mParser->getComment(); -} - -size_t BindingXmlPullParser::getLineNumber() const { - return mParser->getLineNumber(); -} - -size_t BindingXmlPullParser::getDepth() const { - return mParser->getDepth(); -} - -const std::u16string& BindingXmlPullParser::getText() const { - return mParser->getText(); -} - -const std::u16string& BindingXmlPullParser::getNamespacePrefix() const { - return mParser->getNamespacePrefix(); -} - -const std::u16string& BindingXmlPullParser::getNamespaceUri() const { - return mParser->getNamespaceUri(); -} - -bool BindingXmlPullParser::applyPackageAlias(std::u16string* package, - const std::u16string& defaultPackage) const { - return mParser->applyPackageAlias(package, defaultPackage); -} - -const std::u16string& BindingXmlPullParser::getElementNamespace() const { - return mParser->getElementNamespace(); -} - -const std::u16string& BindingXmlPullParser::getElementName() const { - return mParser->getElementName(); -} - -} // namespace aapt |