| /* |
| * Copyright 2000-2014 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 com.siyeh.ig.style; |
| |
| import com.intellij.codeInspection.ProblemDescriptor; |
| import com.intellij.ide.highlighter.JavaFileType; |
| import com.intellij.openapi.editor.Document; |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.editor.EditorSettings; |
| import com.intellij.openapi.fileEditor.FileEditorManager; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.util.TextRange; |
| import com.intellij.psi.PsiDocumentManager; |
| import com.intellij.psi.PsiJavaFile; |
| import com.intellij.psi.codeStyle.CodeStyleSettings; |
| import com.intellij.psi.codeStyle.CodeStyleSettingsManager; |
| import com.intellij.psi.codeStyle.CommonCodeStyleSettings; |
| import com.siyeh.InspectionGadgetsBundle; |
| import com.siyeh.ig.BaseInspection; |
| import com.siyeh.ig.BaseInspectionVisitor; |
| import com.siyeh.ig.InspectionGadgetsFix; |
| import org.jetbrains.annotations.Nls; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * @author Bas Leijdekkers |
| */ |
| public class ProblematicWhitespaceInspection extends BaseInspection { |
| |
| @Nls |
| @NotNull |
| @Override |
| public String getDisplayName() { |
| return InspectionGadgetsBundle.message("problematic.whitespace.display.name"); |
| } |
| |
| @NotNull |
| @Override |
| protected String buildErrorString(Object... infos) { |
| final Boolean useTabs = (Boolean)infos[2]; |
| return useTabs.booleanValue() |
| ? InspectionGadgetsBundle.message("problematic.whitespace.spaces.problem.descriptor", (String)infos[0]) |
| : InspectionGadgetsBundle.message("problematic.whitespace.tabs.problem.descriptor", (String)infos[0]); |
| } |
| |
| @Nullable |
| @Override |
| protected InspectionGadgetsFix buildFix(Object... infos) { |
| final boolean buildFix = ((Boolean)infos[1]).booleanValue(); |
| if (!buildFix) { |
| return null; |
| } |
| return new ShowWhitespaceFix(); |
| } |
| |
| |
| private static class ShowWhitespaceFix extends InspectionGadgetsFix { |
| |
| @NotNull |
| @Override |
| public String getName() { |
| return InspectionGadgetsBundle.message("problematic.whitespace.show.whitespaces.quickfix"); |
| } |
| |
| @NotNull |
| @Override |
| public String getFamilyName() { |
| return getName(); |
| } |
| |
| @Override |
| protected void doFix(Project project, ProblemDescriptor descriptor) { |
| final FileEditorManager editorManager = FileEditorManager.getInstance(project); |
| final Editor editor = editorManager.getSelectedTextEditor(); |
| if (editor == null) { |
| return; |
| } |
| final EditorSettings settings = editor.getSettings(); |
| settings.setWhitespacesShown(!settings.isWhitespacesShown()); |
| editor.getComponent().repaint(); |
| } |
| } |
| |
| |
| @Override |
| public BaseInspectionVisitor buildVisitor() { |
| return new ProblematicWhitespaceVisitor(); |
| } |
| |
| private static class ProblematicWhitespaceVisitor extends BaseInspectionVisitor { |
| |
| @Override |
| public void visitJavaFile(PsiJavaFile file) { |
| super.visitJavaFile(file); |
| final CodeStyleSettings settings = CodeStyleSettingsManager.getSettings(file.getProject()); |
| final CommonCodeStyleSettings.IndentOptions indentOptions = settings.getIndentOptions(JavaFileType.INSTANCE); |
| final boolean useTabs = indentOptions.USE_TAB_CHARACTER; |
| final boolean smartTabs = indentOptions.SMART_TABS; |
| final Document document = PsiDocumentManager.getInstance(file.getProject()).getDocument(file); |
| if (document == null) { |
| return; |
| } |
| final int lineCount = document.getLineCount(); |
| int previousLineIndent = 0; |
| for (int i = 0; i < lineCount; i++) { |
| final int startOffset = document.getLineStartOffset(i); |
| final int endOffset = document.getLineEndOffset(i); |
| final String line = document.getText(new TextRange(startOffset, endOffset)); |
| boolean spaceSeen = false; |
| for (int j = 0, length = line.length(); j < length; j++) { |
| final char c = line.charAt(j); |
| if (c == '\t') { |
| if (useTabs) { |
| if (smartTabs && spaceSeen) { |
| registerError(file, file.getName(), Boolean.valueOf(isOnTheFly()), Boolean.TRUE); |
| return; |
| } |
| } |
| else { |
| registerError(file, file.getName(), Boolean.valueOf(isOnTheFly()), Boolean.FALSE); |
| return; |
| } |
| } |
| else if (c == ' ') { |
| if (useTabs) { |
| if (!smartTabs) { |
| registerError(file, file.getName(), Boolean.valueOf(isOnTheFly()), Boolean.TRUE); |
| return; |
| } |
| else if (!spaceSeen) { |
| final int currentIndent = Math.max(0, j); |
| if (currentIndent < previousLineIndent) { |
| registerError(file, file.getName(), Boolean.valueOf(isOnTheFly()), Boolean.TRUE); |
| return; |
| } |
| previousLineIndent = currentIndent; |
| } |
| } |
| spaceSeen = true; |
| } |
| else { |
| if (!spaceSeen) { |
| previousLineIndent = Math.max(0, j); |
| } |
| break; |
| } |
| } |
| } |
| } |
| } |
| } |