| /* |
| * Copyright 2000-2009 JetBrains s.r.o. |
| * |
| * 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 org.jetbrains.idea.maven.dom.references; |
| |
| import com.intellij.codeInsight.completion.CompletionContributor; |
| import com.intellij.codeInsight.completion.CompletionParameters; |
| import com.intellij.codeInsight.completion.CompletionResultSet; |
| import com.intellij.codeInsight.lookup.LookupElement; |
| import com.intellij.codeInsight.lookup.LookupElementBuilder; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.util.TextRange; |
| import com.intellij.psi.PsiFile; |
| import com.intellij.psi.PsiNamedElement; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.idea.maven.dom.MavenDomUtil; |
| import org.jetbrains.idea.maven.project.MavenProject; |
| import org.jetbrains.idea.maven.project.MavenProjectsManager; |
| |
| import java.util.Arrays; |
| import java.util.Collection; |
| |
| public class MavenPropertyCompletionContributor extends CompletionContributor { |
| @Override |
| public void fillCompletionVariants(@NotNull CompletionParameters parameters, @NotNull CompletionResultSet result) { |
| PsiFile psiFile = parameters.getOriginalFile(); |
| Project project = psiFile.getProject(); |
| |
| MavenProjectsManager manager = MavenProjectsManager.getInstance(project); |
| if (!manager.isMavenizedProject()) return; |
| |
| MavenProject projectFile = MavenDomUtil.findContainingProject(psiFile); |
| if (projectFile == null) return; |
| |
| if (!MavenDomUtil.isMavenFile(psiFile) && !MavenDomUtil.isFilteredResourceFile(psiFile)) return; |
| |
| String text = psiFile.getText(); |
| int offset = parameters.getOffset(); |
| int braceOffset = findOpenBrace(text, offset); |
| if (braceOffset == -1) return; |
| |
| TextRange range = TextRange.create(braceOffset, offset); |
| String prefix = range.substring(text); |
| |
| MavenFilteredPropertyPsiReference ref = new MavenFilteredPropertyPsiReference(projectFile, psiFile, prefix, range); |
| |
| addVariants(Arrays.asList(ref.getVariants()), result.withPrefixMatcher(prefix)); |
| } |
| |
| public static void addVariants(Collection<?> variants, CompletionResultSet result) { |
| for (Object each : variants) { |
| LookupElement e; |
| if (each instanceof LookupElement) { |
| e = (LookupElement)each; |
| } |
| else if (each instanceof String) { |
| e = LookupElementBuilder.create((String)each); |
| } |
| else if (each instanceof PsiNamedElement) { |
| e = LookupElementBuilder.create((PsiNamedElement)each); |
| } |
| else { |
| e = LookupElementBuilder.create(each, String.valueOf(each)); |
| } |
| result.addElement(e); |
| } |
| } |
| |
| private static int findOpenBrace(CharSequence text, int offset) { |
| for (int i = offset - 1; i > 0; i--) { |
| char c = text.charAt(i); |
| if (c == '{' && text.charAt(i - 1) == '$') return i + 1; |
| if (!Character.isLetterOrDigit(c) && c != '.') return -1; |
| } |
| return -1; |
| } |
| } |