/*
* Copyright 2000-2017 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.completion;
import com.intellij.injected.editor.EditorWindow;
import com.intellij.openapi.Disposable;
import com.intellij.openapi.actionSystem.ActionManager;
import com.intellij.openapi.actionSystem.AnAction;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.actionSystem.DataContext;
import com.intellij.openapi.actionSystem.ex.AnActionListener;
import com.intellij.openapi.command.CommandEvent;
import com.intellij.openapi.command.CommandListener;
import com.intellij.openapi.command.CommandProcessor;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.editor.event.DocumentAdapter;
import com.intellij.openapi.editor.event.DocumentEvent;
import com.intellij.openapi.project.DumbService;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.Expirable;
import com.intellij.openapi.wm.IdeFocusManager;
/**
* @author peter
*/
class ActionTracker {
private boolean myActionsHappened;
private final Editor myEditor;
private final Expirable myFocusStamp;
private final Project myProject;
private boolean myIgnoreDocumentChanges;
ActionTracker(Editor editor, Disposable parentDisposable) {
myEditor = editor;
myProject = editor.getProject();
myFocusStamp = IdeFocusManager.getInstance(myProject).getTimestamp(true);
ActionManager.getInstance().addAnActionListener(new AnActionListener.Adapter() {
@Override
public void beforeActionPerformed(AnAction action, DataContext dataContext, AnActionEvent event) {
myActionsHappened = true;
}
}, parentDisposable);
myEditor.getDocument().addDocumentListener(new DocumentAdapter() {
@Override
public void documentChanged(DocumentEvent e) {
if (!myIgnoreDocumentChanges) {
myActionsHappened = true;
}
}
}, parentDisposable);
}
void ignoreCurrentDocumentChange() {
final CommandProcessor commandProcessor = CommandProcessor.getInstance();
if (commandProcessor.getCurrentCommand() == null) return;
myIgnoreDocumentChanges = true;
commandProcessor.addCommandListener(new CommandListener() {
@Override
public void commandFinished(CommandEvent event) {
commandProcessor.removeCommandListener(this);
myIgnoreDocumentChanges = false;
}
});
}
boolean hasAnythingHappened() {
return myActionsHappened || myFocusStamp.isExpired() || DumbService.getInstance(myProject).isDumb() ||
myEditor.isDisposed() ||
(myEditor instanceof EditorWindow && !((EditorWindow)myEditor).isValid());
}
}