plugins/maven/src/main/java/org/jetbrains/idea/maven/utils/MavenImportNotifier.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.jetbrains.idea.maven.utils;
  17
  18 import com.intellij.openapi.fileEditor.FileEditor;
  19 import com.intellij.openapi.fileEditor.FileEditorManager;
  20 import com.intellij.openapi.fileEditor.FileEditorManagerAdapter;
  21 import com.intellij.openapi.project.Project;
  22 import com.intellij.openapi.util.Key;
  23 import com.intellij.openapi.vfs.VirtualFile;
  24 import com.intellij.ui.EditorNotificationPanel;
  25 import com.intellij.util.ui.update.MergingUpdateQueue;
  26 import com.intellij.util.ui.update.Update;
  27 import org.jetbrains.idea.maven.project.MavenProject;
  28 import org.jetbrains.idea.maven.project.MavenProjectsManager;
  29 import org.jetbrains.idea.maven.project.ProjectBundle;
  30
  31 import javax.swing.*;
  32
  33 // todo: migrate to EditorNotifications
  34 public class MavenImportNotifier extends SimpleProjectComponent {
  35   private static final Key<NotifierPanel> PANEL_KEY = new Key<NotifierPanel>(NotifierPanel.class.getName());
  36
  37   private final FileEditorManager myFileEditorManager;
  38   private final MavenProjectsManager myMavenProjectsManager;
  39
  40   private final MergingUpdateQueue myUpdatesQueue;
  41
  42   public MavenImportNotifier(Project p, FileEditorManager fileEditorManager, MavenProjectsManager mavenProjectsManager) {
  43     super(p);
  44
  45     myFileEditorManager = fileEditorManager;
  46     myMavenProjectsManager = mavenProjectsManager;
  47
  48     myUpdatesQueue = new MergingUpdateQueue(getComponentName(), 500, false, MergingUpdateQueue.ANY_COMPONENT, myProject);
  49
  50     myMavenProjectsManager.addManagerListener(new MavenProjectsManager.Listener() {
  51       public void activated() {
  52         init();
  53         scheduleUpdate();
  54       }
  55
  56       public void scheduledImportsChanged() {
  57         scheduleUpdate();
  58       }
  59     });
  60   }
  61
  62   private void init() {
  63     myFileEditorManager.addFileEditorManagerListener(new FileEditorManagerAdapter() {
  64       @Override
  65       public void fileOpened(FileEditorManager source, VirtualFile file) {
  66         for (FileEditor each : source.getEditors(file)) {
  67           updateNotification(file, each);
  68         }
  69       }
  70     }, myProject);
  71     myUpdatesQueue.activate();
  72   }
  73
  74   private void scheduleUpdate() {
  75     myUpdatesQueue.queue(new Update(myUpdatesQueue) {
  76       public void run() {
  77         updateNotifications();
  78       }
  79     });
  80   }
  81
  82   private void updateNotifications() {
  83     for (VirtualFile f : myFileEditorManager.getOpenFiles()) {
  84       for (FileEditor e : myFileEditorManager.getEditors(f)) {
  85         updateNotification(f, e);
  86       }
  87     }
  88   }
  89
  90   private void updateNotification(VirtualFile file, FileEditor editor) {
  91     if (myMavenProjectsManager.getImportingSettings().isImportAutomatically()
  92         || !myMavenProjectsManager.hasScheduledImports()) {
  93       JComponent panel = editor.getUserData(PANEL_KEY);
  94       if (panel == null) return;
  95
  96       myFileEditorManager.removeTopComponent(editor, panel);
  97       editor.putUserData(PANEL_KEY, null);
  98
  99       return;
 100     }
 101
 102     MavenProject project = myMavenProjectsManager.findContainingProject(file);
 103     if (project == null) return;
 104
 105     NotifierPanel panel = editor.getUserData(PANEL_KEY);
 106     if (panel == null) {
 107       panel = new NotifierPanel();
 108       editor.putUserData(PANEL_KEY, panel);
 109       myFileEditorManager.addTopComponent(editor, panel);
 110     }
 111
 112     panel.update();
 113   }
 114
 115   private class NotifierPanel extends EditorNotificationPanel {
 116
 117     private NotifierPanel() {
 118
 119       myLabel.setIcon(MavenIcons.MAVEN_ICON);
 120
 121       createActionLabel(ProjectBundle.message("maven.project.import.changed"), new Runnable() {
 122         public void run() {
 123           myMavenProjectsManager.performScheduledImport();
 124         }
 125       });
 126       createActionLabel(ProjectBundle.message("maven.project.import.enable.auto"), new Runnable() {
 127         public void run() {
 128           myMavenProjectsManager.getImportingSettings().setImportAutomatically(true);
 129         }
 130       });
 131     }
 132
 133     public void update() {
 134       int projectsCount = myMavenProjectsManager.getScheduledProjectsCount();
 135       String s;
 136       if (projectsCount == 0) {
 137         s = ProjectBundle.message("maven.project.something.changed");
 138       }
 139       else {
 140         s = ProjectBundle.message("maven.project.changed", projectsCount, projectsCount == 1 ? " is" : "s are");
 141       }
 142       myLabel.setText(s);
 143       myLabel.setToolTipText(s);
 144     }
 145   }
 146 }