| /* |
| * Copyright 2000-2013 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.daemon.impl; |
| |
| import com.intellij.codeInsight.daemon.DaemonCodeAnalyzer; |
| import com.intellij.lang.annotation.HighlightSeverity; |
| import com.intellij.openapi.Disposable; |
| import com.intellij.openapi.application.Application; |
| import com.intellij.openapi.application.ApplicationManager; |
| import com.intellij.openapi.editor.Document; |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.editor.ex.DocumentEx; |
| import com.intellij.openapi.fileEditor.FileEditorManager; |
| import com.intellij.openapi.fileEditor.FileEditorManagerAdapter; |
| import com.intellij.openapi.fileEditor.FileEditorManagerEvent; |
| import com.intellij.openapi.fileEditor.FileEditorManagerListener; |
| import com.intellij.openapi.project.DumbAwareRunnable; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.wm.StatusBar; |
| import com.intellij.openapi.wm.WindowManager; |
| import com.intellij.util.Alarm; |
| import org.jetbrains.annotations.NotNull; |
| |
| public class StatusBarUpdater implements Disposable { |
| private final Project myProject; |
| private final DumbAwareRunnable myUpdateStatusRunnable = new DumbAwareRunnable() { |
| @Override |
| public void run() { |
| if (!myProject.isDisposed()) { |
| updateStatus(); |
| } |
| } |
| }; |
| private final Alarm updateStatusAlarm = new Alarm(); |
| |
| public StatusBarUpdater(Project project) { |
| myProject = project; |
| |
| project.getMessageBus().connect(this).subscribe(FileEditorManagerListener.FILE_EDITOR_MANAGER, new FileEditorManagerAdapter() { |
| @Override |
| public void selectionChanged(@NotNull FileEditorManagerEvent event) { |
| updateLater(); |
| } |
| }); |
| |
| project.getMessageBus().connect(this).subscribe(DaemonCodeAnalyzer.DAEMON_EVENT_TOPIC, new DaemonCodeAnalyzer.DaemonListenerAdapter() { |
| @Override |
| public void daemonFinished() { |
| updateLater(); |
| } |
| }); |
| } |
| |
| private void updateLater() { |
| final Application application = ApplicationManager.getApplication(); |
| if (application.isUnitTestMode()) { |
| myUpdateStatusRunnable.run(); |
| } |
| else { |
| updateStatusAlarm.cancelAllRequests(); |
| updateStatusAlarm.addRequest(myUpdateStatusRunnable, 100); |
| } |
| } |
| |
| @Override |
| public void dispose() { |
| } |
| |
| private void updateStatus() { |
| Editor editor = FileEditorManager.getInstance(myProject).getSelectedTextEditor(); |
| if (editor == null || !editor.getContentComponent().hasFocus()){ |
| return; |
| } |
| |
| final Document document = editor.getDocument(); |
| if (document instanceof DocumentEx && ((DocumentEx)document).isInBulkUpdate()) return; |
| |
| int offset = editor.getCaretModel().getOffset(); |
| DaemonCodeAnalyzer codeAnalyzer = DaemonCodeAnalyzer.getInstance(myProject); |
| HighlightInfo info = ((DaemonCodeAnalyzerImpl)codeAnalyzer).findHighlightByOffset(document, offset, false, HighlightSeverity.WARNING); |
| String text = info != null && info.getDescription() != null ? info.getDescription() : ""; |
| |
| StatusBar statusBar = WindowManager.getInstance().getStatusBar(editor.getContentComponent(), myProject); |
| if (statusBar != null && !text.equals(statusBar.getInfo())) { |
| statusBar.setInfo(text, "updater"); |
| } |
| } |
| } |