Home » openjdk-7 » java » awt » [javadoc | source]

    1   /*
    2    *  Licensed to the Apache Software Foundation (ASF) under one or more
    3    *  contributor license agreements.  See the NOTICE file distributed with
    4    *  this work for additional information regarding copyright ownership.
    5    *  The ASF licenses this file to You under the Apache License, Version 2.0
    6    *  (the "License"); you may not use this file except in compliance with
    7    *  the License.  You may obtain a copy of the License at
    8    *
    9    *     http://www.apache.org/licenses/LICENSE-2.0
   10    *
   11    *  Unless required by applicable law or agreed to in writing, software
   12    *  distributed under the License is distributed on an "AS IS" BASIS,
   13    *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   14    *  See the License for the specific language governing permissions and
   15    *  limitations under the License.
   16    */
   17   /**
   18    * @author Pavel Dolgov
   19    */
   20   package java.awt;
   21   
   22   /**
   23    *
   24    * The context for nested event loop. It can be dialog, popup menu etc.
   25    */
   26   class ModalContext {
   27   
   28       private boolean running = false;
   29   
   30       private final Toolkit toolkit;
   31   
   32       ModalContext() {
   33           toolkit = Toolkit.getDefaultToolkit();
   34       }
   35   
   36       /**
   37        * Set up and run modal loop in this context
   38        *
   39        */
   40       void runModalLoop() {
   41       	if(!running) {
   42       		running = true;
   43       		toolkit.dispatchThread.runModalLoop(this);
   44       	}
   45       }
   46   
   47       /**
   48        * Leave the modal loop running in this context
   49        * This method doesn't stops the loop immediately,
   50        * it just sets the flag that says the modal loop to stop
   51        *
   52        */
   53       void endModalLoop() {
   54           running = false;
   55       }
   56   
   57       /**
   58        *
   59        * @return modal loop is currently running in this context
   60        */
   61       boolean isModalLoopRunning() {
   62           return running;
   63       }
   64   
   65   }

Home » openjdk-7 » java » awt » [javadoc | source]