/* * Copyright (C) 2019 Cricin * * 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. */ package cn.cricin.folivora.dom; import com.android.SdkConstants; import com.intellij.psi.PsiElement; import com.intellij.psi.PsiRecursiveElementVisitor; import com.intellij.psi.xml.XmlFile; import com.intellij.psi.xml.XmlTag; import com.intellij.util.xml.ConvertContext; import com.intellij.util.xml.ResolvingConverter; import org.jetbrains.annotations.NotNull; import org.jetbrains.annotations.Nullable; import java.util.ArrayList; import java.util.Collection; import java.util.Collections; import java.util.HashSet; import java.util.Set; /** * This converter keeps track app:drawableId values used * in project, and gives cached candidates when use drawableId */ public class DrawableIdConverter extends ResolvingConverter<String> { @NotNull @Override public Collection<? extends String> getVariants(ConvertContext convertContext) { if (convertContext == null) return Collections.emptyList(); XmlFile file = convertContext.getFile(); final Set<String> drawableIds = new HashSet<>(); file.accept(new PsiRecursiveElementVisitor() { @Override public void visitElement(PsiElement element) { super.visitElement(element); if (element instanceof XmlTag) { String drawableId = ((XmlTag) element).getAttributeValue("drawableId", SdkConstants.AUTO_URI); if(drawableId != null && !drawableId.isEmpty()) { drawableIds.add(drawableId); } } } }); return new ArrayList<>(drawableIds); } @Nullable @Override public String fromString(@Nullable String s, ConvertContext convertContext) { return s; } @Nullable @Override public String toString(@Nullable String s, ConvertContext convertContext) { return s; } }