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/*
* 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.editorActions;
import com.intellij.codeInsight.AutoPopupController;
import com.intellij.codeInsight.completion.CodeCompletionHandlerBase;
import com.intellij.codeInsight.completion.CompletionPhase;
import com.intellij.codeInsight.completion.CompletionType;
import com.intellij.codeInsight.completion.impl.CompletionServiceImpl;
import com.intellij.codeInsight.lookup.LookupManager;
import com.intellij.codeInsight.lookup.impl.LookupImpl;
import com.intellij.lang.injection.InjectedLanguageManager;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.editor.Document;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.editor.EditorModificationUtil;
import com.intellij.openapi.project.IndexNotReadyException;
import com.intellij.openapi.project.Project;
import com.intellij.psi.PsiDocumentManager;
import com.intellij.psi.PsiFile;
import com.intellij.psi.impl.source.tree.injected.InjectedLanguageUtil;
import org.jetbrains.annotations.NotNull;
/**
* @author peter
*/
public class CompletionAutoPopupHandler extends TypedHandlerDelegate {
private static final Logger LOG = Logger.getInstance("#com.intellij.codeInsight.editorActions.CompletionAutoPopupHandler");
public static volatile boolean ourTestingAutopopup = false;
@Override
public Result checkAutoPopup(char charTyped, final Project project, final Editor editor, final PsiFile file) {
CompletionPhase oldPhase = CompletionServiceImpl.getCompletionPhase();
if (oldPhase instanceof CompletionPhase.EmptyAutoPopup && ((CompletionPhase.EmptyAutoPopup)oldPhase).editor != editor) {
CompletionServiceImpl.setCompletionPhase(CompletionPhase.NoCompletion);
}
if (oldPhase instanceof CompletionPhase.CommittingDocuments && ((CompletionPhase.CommittingDocuments)oldPhase).isRestartingCompletion()) {
oldPhase.indicator.scheduleRestart();
return Result.STOP;
}
LookupImpl lookup = (LookupImpl)LookupManager.getActiveLookup(editor);
if (lookup != null) {
if (editor.getSelectionModel().hasSelection()) {
lookup.performGuardedChange(new Runnable() {
@Override
public void run() {
EditorModificationUtil.deleteSelectedText(editor);
}
});
}
return Result.STOP;
}
if (Character.isLetter(charTyped) || charTyped == '_') {
AutoPopupController.getInstance(project).scheduleAutoPopup(editor);
return Result.STOP;
}
if (CompletionServiceImpl.isPhase(CompletionPhase.EmptyAutoPopup.class, CompletionPhase.CommittingDocuments.class)) {
CompletionServiceImpl.setCompletionPhase(CompletionPhase.NoCompletion);
}
return Result.CONTINUE;
}
public static void invokeCompletion(@NotNull CompletionType completionType,
boolean autopopup,
Project project, Editor editor, int time, boolean restart) {
if (editor.isDisposed()) {
CompletionServiceImpl.setCompletionPhase(CompletionPhase.NoCompletion);
return;
}
// retrieve the injected file from scratch since our typing might have destroyed the old one completely
Editor topLevelEditor = InjectedLanguageUtil.getTopLevelEditor(editor);
PsiFile file = PsiDocumentManager.getInstance(project).getPsiFile(topLevelEditor.getDocument());
if (file == null) {
CompletionServiceImpl.setCompletionPhase(CompletionPhase.NoCompletion);
return;
}
PsiFile topLevelFile = InjectedLanguageManager.getInstance(file.getProject()).getTopLevelFile(file);
if (!PsiDocumentManager.getInstance(project).isCommitted(editor.getDocument())) {
LOG.error("Non-committed document");
PsiDocumentManager.getInstance(project).commitAllDocuments();
}
Editor newEditor = InjectedLanguageUtil.getEditorForInjectedLanguageNoCommit(topLevelEditor, topLevelFile);
try {
new CodeCompletionHandlerBase(completionType, false, autopopup, false).invokeCompletion(project, newEditor, time, false, restart);
}
catch (IndexNotReadyException ignored) {
}
}
public static void runLaterWithCommitted(@NotNull final Project project,
@NotNull final Document document,
@NotNull final Runnable runnable) {
final long beforeStamp = document.getModificationStamp();
PsiDocumentManager.getInstance(project).performWhenAllCommitted(new Runnable() {
@Override
public void run() {
// later because we may end up in write action here if there was a synchronous commit
ApplicationManager.getApplication().invokeLater(new Runnable() {
@Override
public void run() {
if (beforeStamp != document.getModificationStamp()) {
// no luck, will try later
runLaterWithCommitted(project, document, runnable);
}
else {
runnable.run();
}
}
}, project.getDisposed());
}
});
}
}
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