platform/platform-impl/src/com/intellij/openapi/wm/impl/commands/RequestFocusInEditorComponentCmd.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 /**
  18  * @author Vladimir Kondratyev
  19  */
  20 package com.intellij.openapi.wm.impl.commands;
  21
  22 import com.intellij.openapi.fileEditor.ex.FileEditorManagerEx;
  23 import com.intellij.openapi.util.ActionCallback;
  24 import com.intellij.openapi.util.Expirable;
  25 import com.intellij.openapi.wm.IdeFocusManager;
  26 import com.intellij.openapi.wm.impl.FloatingDecorator;
  27 import org.jetbrains.annotations.NotNull;
  28
  29 import javax.swing.*;
  30 import java.awt.*;
  31
  32 /**
  33  * Requests focus for the editor component.
  34  */
  35 public final class RequestFocusInEditorComponentCmd extends FinalizableCommand{
  36   private final FileEditorManagerEx myEditorManager;
  37   private final JComponent myComponent;
  38   private final boolean myForced;
  39   private final ActionCallback myDoneCallback;
  40
  41   private IdeFocusManager myFocusManager;
  42   private Expirable myTimestamp;
  43
  44   public RequestFocusInEditorComponentCmd(@NotNull final FileEditorManagerEx editorManager, IdeFocusManager
  45                                           focusManager, final Runnable finishCallBack, boolean forced){
  46     super(finishCallBack);
  47     myEditorManager = editorManager;
  48     myComponent = myEditorManager.getPreferredFocusedComponent();
  49     myForced = forced;
  50     myFocusManager = focusManager;
  51
  52     myDoneCallback = new ActionCallback();
  53
  54     myTimestamp = myFocusManager.getTimestamp(true);
  55   }
  56
  57   public ActionCallback getDoneCallback() {
  58     return myDoneCallback;
  59   }
  60
  61   public final void run(){
  62     try{
  63       if (myTimestamp.isExpired()) {
  64         final Component owner = KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner();
  65         if (owner != null && owner == myComponent) {
  66           myDoneCallback.setDone();
  67         } else {
  68           myDoneCallback.setRejected();
  69         }
  70       }
  71
  72
  73       final Window owner=SwingUtilities.getWindowAncestor(myEditorManager.getComponent());
  74       if(owner==null){
  75         return;
  76       }
  77
  78       if(myComponent != null){
  79         myFocusManager.requestFocus(myComponent, myForced).notifyWhenDone(myDoneCallback).doWhenDone(new Runnable() {
  80           public void run() {
  81             // if owner is active window or it has active child window which isn't floating decorator then
  82             // don't bring owner window to font. If we will make toFront every time then it's possible
  83             // the following situation:
  84             // 1. user prform refactoring
  85             // 2. "Do not show preview" dialog is popping up.
  86             // 3. At that time "preview" tool window is being activated and modal "don't show..." dialog
  87             // isn't active.
  88             if(!owner.isActive()){
  89               final Window activeWindow=getActiveWindow(owner.getOwnedWindows());
  90               if(activeWindow == null || (activeWindow instanceof FloatingDecorator)){
  91                 //Thread.dumpStack();
  92                 //System.out.println("------------------------------------------------------");
  93                 owner.toFront();
  94               }
  95             }
  96           }
  97         });
  98       } else {
  99         myDoneCallback.setRejected();
 100       }
 101
 102     }finally{
 103       finish();
 104     }
 105   }
 106
 107   /**
 108    * @return first active window from hierarchy with specified roots. Returns <code>null</code>
 109    * if there is no active window in the hierarchy.
 110    */
 111   private Window getActiveWindow(final Window[] windows){
 112     for(int i=0;i<windows.length;i++){
 113       Window window=windows[i];
 114       if(window.isShowing()&&window.isActive()){
 115         return window;
 116       }
 117       window=getActiveWindow(window.getOwnedWindows());
 118       if(window!=null){
 119         return window;
 120       }
 121     }
 122     return null;
 123   }
 124 }