| /* |
| * 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.intellij.codeInsight.template.emmet; |
| |
| import com.intellij.codeInsight.template.CustomTemplateCallback; |
| import com.intellij.codeInsight.template.Template; |
| import com.intellij.codeInsight.template.TemplateEditingListener; |
| import com.intellij.codeInsight.template.emmet.filters.ZenCodingFilter; |
| import com.intellij.codeInsight.template.emmet.generators.XmlZenCodingGenerator; |
| import com.intellij.codeInsight.template.emmet.generators.ZenCodingGenerator; |
| import com.intellij.codeInsight.template.impl.TemplateImpl; |
| import com.intellij.openapi.application.ApplicationManager; |
| import com.intellij.openapi.command.CommandProcessor; |
| import com.intellij.openapi.command.undo.UndoConstants; |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.editor.event.CaretAdapter; |
| import com.intellij.openapi.editor.event.CaretEvent; |
| import com.intellij.openapi.editor.event.DocumentAdapter; |
| import com.intellij.openapi.editor.event.DocumentEvent; |
| import com.intellij.openapi.util.Ref; |
| import com.intellij.openapi.util.text.StringUtil; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.psi.PsiDocumentManager; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiFile; |
| import com.intellij.psi.PsiFileFactory; |
| import com.intellij.psi.codeStyle.CodeStyleManager; |
| import com.intellij.psi.xml.XmlFile; |
| import com.intellij.util.Producer; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.util.Collections; |
| import java.util.Map; |
| |
| public class EmmetPreviewUtil { |
| private EmmetPreviewUtil() { |
| } |
| |
| @Nullable |
| public static String calculateTemplateText(@NotNull Editor editor, @NotNull PsiFile file, boolean expandPrimitiveAbbreviations) { |
| if (file instanceof XmlFile) { |
| final Ref<TemplateImpl> generatedTemplate = new Ref<TemplateImpl>(); |
| PsiDocumentManager.getInstance(file.getProject()).commitDocument(editor.getDocument()); |
| CustomTemplateCallback callback = createCallback(editor, file, generatedTemplate); |
| PsiElement context = callback.getContext(); |
| ZenCodingGenerator generator = ZenCodingTemplate.findApplicableDefaultGenerator(context, false); |
| if (generator != null && generator instanceof XmlZenCodingGenerator) { |
| final String templatePrefix = new ZenCodingTemplate().computeTemplateKeyWithoutContextChecking(callback); |
| if (templatePrefix != null) { |
| try { |
| ZenCodingTemplate.expand(templatePrefix, callback, generator, Collections.<ZenCodingFilter>emptyList(), |
| expandPrimitiveAbbreviations, 0); |
| TemplateImpl template = generatedTemplate.get(); |
| String templateText = template != null ? template.getTemplateText() : null; |
| if (!StringUtil.isEmpty(templateText)) { |
| return template.isToReformat() ? reformatTemplateText(file, templateText) : templateText; |
| } |
| } |
| catch (EmmetException e) { |
| return e.getMessage(); |
| } |
| |
| } |
| } |
| } |
| return null; |
| } |
| |
| public static void addEmmetPreviewListeners(@NotNull final Editor editor, |
| @NotNull final PsiFile file, |
| final boolean expandPrimitiveAbbreviations) { |
| editor.getDocument().addDocumentListener(new DocumentAdapter() { |
| @Override |
| public void documentChanged(@NotNull DocumentEvent e) { |
| EmmetPreviewHint existingHint = EmmetPreviewHint.getExistingHint(editor); |
| if (existingHint != null) { |
| existingHint.updateText(new TemplateTextProducer(editor, file, expandPrimitiveAbbreviations)); |
| } |
| else { |
| e.getDocument().removeDocumentListener(this); |
| } |
| } |
| }); |
| |
| editor.getCaretModel().addCaretListener(new CaretAdapter() { |
| @Override |
| public void caretPositionChanged(@NotNull CaretEvent e) { |
| EmmetPreviewHint existingHint = EmmetPreviewHint.getExistingHint(e.getEditor()); |
| if (existingHint != null) { |
| existingHint.updateText(new TemplateTextProducer(editor, file, expandPrimitiveAbbreviations)); |
| } |
| else { |
| e.getEditor().getCaretModel().removeCaretListener(this); |
| } |
| } |
| }); |
| } |
| |
| private static String reformatTemplateText(@NotNull final PsiFile file, @NotNull String templateText) { |
| final PsiFile copy = PsiFileFactory.getInstance(file.getProject()).createFileFromText(file.getName(), file.getFileType(), templateText); |
| VirtualFile vFile = copy.getVirtualFile(); |
| if (vFile != null) { |
| vFile.putUserData(UndoConstants.DONT_RECORD_UNDO, Boolean.TRUE); |
| } |
| ApplicationManager.getApplication().runWriteAction(new Runnable() { |
| @Override |
| public void run() { |
| CommandProcessor.getInstance().runUndoTransparentAction(new Runnable() { |
| @Override |
| public void run() { |
| CodeStyleManager.getInstance(file.getProject()).reformat(copy); |
| } |
| }); |
| } |
| }); |
| return copy.getText(); |
| } |
| |
| @NotNull |
| private static CustomTemplateCallback createCallback(@NotNull Editor editor, |
| @NotNull PsiFile file, |
| @NotNull final Ref<TemplateImpl> generatedTemplate) { |
| return new CustomTemplateCallback(editor, file) { |
| @Override |
| public void startTemplate(@NotNull Template template, Map<String, String> predefinedValues, TemplateEditingListener listener) { |
| if (template instanceof TemplateImpl && !((TemplateImpl)template).isDeactivated()) { |
| generatedTemplate.set((TemplateImpl)template); |
| } |
| } |
| |
| @Override |
| public void deleteTemplateKey(@NotNull String key) { |
| } |
| }; |
| } |
| |
| private static class TemplateTextProducer implements Producer<String> { |
| @NotNull private final Editor myEditor; |
| @NotNull private final PsiFile myFile; |
| private final boolean myExpandPrimitiveAbbreviations; |
| |
| public TemplateTextProducer(@NotNull Editor editor, @NotNull PsiFile file, boolean expandPrimitiveAbbreviations) { |
| myEditor = editor; |
| myFile = file; |
| myExpandPrimitiveAbbreviations = expandPrimitiveAbbreviations; |
| } |
| |
| @Nullable |
| @Override |
| public String produce() { |
| return calculateTemplateText(myEditor, myFile, myExpandPrimitiveAbbreviations); |
| } |
| } |
| } |