platform/lang-impl/src/com/intellij/codeInsight/AutoPopupController.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
  17 package com.intellij.codeInsight;
  18
  19 import com.intellij.codeInsight.completion.CompletionProgressIndicator;
  20 import com.intellij.codeInsight.completion.DotAutoLookupHandler;
  21 import com.intellij.codeInsight.completion.impl.CompletionServiceImpl;
  22 import com.intellij.codeInsight.hint.ShowParameterInfoHandler;
  23 import com.intellij.ide.IdeEventQueue;
  24 import com.intellij.openapi.Disposable;
  25 import com.intellij.openapi.actionSystem.AnAction;
  26 import com.intellij.openapi.actionSystem.DataContext;
  27 import com.intellij.openapi.actionSystem.AnActionEvent;
  28 import com.intellij.openapi.actionSystem.ex.ActionManagerEx;
  29 import com.intellij.openapi.actionSystem.ex.AnActionListener;
  30 import com.intellij.openapi.application.ApplicationManager;
  31 import com.intellij.openapi.components.ServiceManager;
  32 import com.intellij.openapi.editor.Editor;
  33 import com.intellij.openapi.project.Project;
  34 import com.intellij.openapi.util.Condition;
  35 import com.intellij.psi.PsiDocumentManager;
  36 import com.intellij.psi.PsiElement;
  37 import com.intellij.psi.PsiFile;
  38 import com.intellij.psi.impl.source.tree.injected.InjectedLanguageUtil;
  39 import com.intellij.psi.util.PsiUtilBase;
  40 import com.intellij.util.Alarm;
  41 import org.jetbrains.annotations.Nullable;
  42
  43 /**
  44  *
  45  */
  46 public class AutoPopupController implements Disposable {
  47   private final Project myProject;
  48   private final Alarm myAlarm = new Alarm();
  49
  50   public static AutoPopupController getInstance(Project project){
  51     return ServiceManager.getService(project, AutoPopupController.class);
  52   }
  53
  54   public AutoPopupController(Project project) {
  55     myProject = project;
  56     setupListeners();
  57   }
  58
  59   private void setupListeners() {
  60     ActionManagerEx.getInstanceEx().addAnActionListener(new AnActionListener() {
  61       public void beforeActionPerformed(AnAction action, DataContext dataContext, AnActionEvent event) {
  62         myAlarm.cancelAllRequests();
  63       }
  64
  65       public void beforeEditorTyping(char c, DataContext dataContext) {
  66         myAlarm.cancelAllRequests();
  67       }
  68
  69
  70       public void afterActionPerformed(final AnAction action, final DataContext dataContext, AnActionEvent event) {
  71       }
  72     }, this);
  73
  74     IdeEventQueue.getInstance().addActivityListener(new Runnable() {
  75       public void run() {
  76         myAlarm.cancelAllRequests();
  77       }
  78     }, this);
  79   }
  80
  81   public void autoPopupMemberLookup(final Editor editor, @Nullable final Condition<Editor> condition){
  82     if (ApplicationManager.getApplication().isUnitTestMode()) return;
  83
  84     final CodeInsightSettings settings = CodeInsightSettings.getInstance();
  85     if (settings.AUTO_POPUP_MEMBER_LOOKUP) {
  86       final PsiFile file = PsiUtilBase.getPsiFileInEditor(editor, myProject);
  87       if (file == null) return;
  88       final Runnable request = new Runnable(){
  89         public void run(){
  90           if (myProject.isDisposed()) return;
  91           if (editor.isDisposed()) return;
  92
  93           PsiDocumentManager.getInstance(myProject).commitAllDocuments();
  94           if (condition != null && !condition.value(editor)) return;
  95           new DotAutoLookupHandler().invoke(myProject, editor, file);
  96         }
  97       };
  98       // invoke later prevents cancelling request by keyPressed from the same action
  99       ApplicationManager.getApplication().invokeLater(new Runnable() {
 100             public void run() {
 101               myAlarm.addRequest(request, settings.MEMBER_LOOKUP_DELAY);
 102             }
 103           });
 104     }
 105   }
 106
 107   public void invokeAutoPopupRunnable(final Runnable request, final int delay) {
 108     if (ApplicationManager.getApplication().isUnitTestMode()) return;
 109     final CompletionProgressIndicator currentCompletion = CompletionServiceImpl.getCompletionService().getCurrentCompletion();
 110     if (currentCompletion != null) {
 111       currentCompletion.closeAndFinish();
 112     }
 113
 114     // invoke later prevents cancelling request by keyPressed from the same action
 115     ApplicationManager.getApplication().invokeLater(new Runnable() {
 116           public void run() {
 117             myAlarm.addRequest(request, delay);
 118           }
 119         });
 120   }
 121
 122   public void autoPopupParameterInfo(final Editor editor, final PsiElement highlightedMethod){
 123     if (ApplicationManager.getApplication().isUnitTestMode()) return;
 124
 125     ApplicationManager.getApplication().assertIsDispatchThread();
 126     final CodeInsightSettings settings = CodeInsightSettings.getInstance();
 127     if (settings.AUTO_POPUP_PARAMETER_INFO) {
 128       final PsiDocumentManager documentManager = PsiDocumentManager.getInstance(myProject);
 129       PsiFile file = documentManager.getPsiFile(editor.getDocument());
 130       if (file == null) return;
 131
 132       if (!documentManager.isUncommited(editor.getDocument())) {
 133         file = documentManager.getPsiFile(InjectedLanguageUtil.getEditorForInjectedLanguageNoCommit(editor, file).getDocument());
 134         if (file == null) return;
 135       }
 136
 137       final PsiFile file1 = file;
 138       final Runnable request = new Runnable(){
 139         public void run(){
 140           if (!editor.isDisposed()) {
 141             documentManager.commitAllDocuments();
 142             int lbraceOffset = editor.getCaretModel().getOffset() - 1;
 143             new ShowParameterInfoHandler().invoke(myProject, editor, file1, lbraceOffset, highlightedMethod);
 144           }
 145         }
 146       };
 147       // invoke later prevents cancelling request by keyPressed from the same action
 148       ApplicationManager.getApplication().invokeLater(new Runnable() {
 149             public void run() {
 150               myAlarm.addRequest(request, settings.PARAMETER_INFO_DELAY);
 151             }
 152           });
 153     }
 154   }
 155
 156   public void dispose() {
 157   }
 158 }