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modules/controls/src/main/java/com/sun/javafx/scene/control/behavior/TwoLevelFocusPopupBehavior.java

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   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.javafx.scene.control.behavior;
  27 

  28 import javafx.scene.Node;
  29 import javafx.scene.control.PopupControl;
  30 
  31 import javafx.scene.Scene;
  32 import javafx.scene.input.KeyEvent;
  33 
  34 import javafx.beans.value.ChangeListener;
  35 import javafx.event.Event;
  36 import javafx.event.EventDispatcher;
  37 import javafx.event.EventHandler;
  38 import javafx.scene.input.MouseEvent;
  39 
  40 
  41 public class TwoLevelFocusPopupBehavior extends TwoLevelFocusBehavior {
  42 
  43     public TwoLevelFocusPopupBehavior(PopupControl popup) {
  44 
  45         tlPopup = popup;
  46 
  47         setExternalFocus(false);  // popups go straight to internal focus


  87 
  88     /*
  89     ** don't allow the Node to handle a key event if it is in externalFocus mode.
  90     ** the only keyboard actions allowed are the navigation keys......
  91     */
  92     final EventDispatcher preemptiveEventDispatcher = (event, tail) -> {
  93 
  94         // block the event from being passed down to children
  95         if (event instanceof KeyEvent && event.getEventType() == KeyEvent.KEY_PRESSED) {
  96             if (!((KeyEvent)event).isMetaDown() && !((KeyEvent)event).isControlDown()  && !((KeyEvent)event).isAltDown()) {
  97                 if (isExternalFocus()) {
  98                     //
  99                     // don't let the behaviour leak any navigation keys when
 100                     // we're not in blocking mode....
 101                     //
 102                     Object obj = event.getTarget();
 103 
 104                     switch (((KeyEvent)event).getCode()) {
 105                       case TAB :
 106                           if (((KeyEvent)event).isShiftDown()) {
 107                               ((Node)obj).impl_traverse(com.sun.javafx.scene.traversal.Direction.PREVIOUS);
 108                           }
 109                           else {
 110                               ((Node)obj).impl_traverse(com.sun.javafx.scene.traversal.Direction.NEXT);
 111                           }
 112                           event.consume();
 113                           break;
 114                       case UP :
 115                           ((Node)obj).impl_traverse(com.sun.javafx.scene.traversal.Direction.UP);
 116                           event.consume();
 117                           break;
 118                       case DOWN :
 119                           ((Node)obj).impl_traverse(com.sun.javafx.scene.traversal.Direction.DOWN);
 120                           event.consume();
 121                           break;
 122                       case LEFT :
 123                           ((Node)obj).impl_traverse(com.sun.javafx.scene.traversal.Direction.LEFT);
 124                           event.consume();
 125                           break;
 126                       case RIGHT :
 127                           ((Node)obj).impl_traverse(com.sun.javafx.scene.traversal.Direction.RIGHT);
 128                           event.consume();
 129                           break;
 130                       case ENTER :
 131                           setExternalFocus(false);
 132                           event.consume();
 133                           break;
 134                       default :
 135                           // this'll kill mnemonics.... unless!
 136                           Scene s = tlNode.getScene();
 137                           Event.fireEvent(s, event);
 138                           event.consume();
 139                           break;
 140                     }
 141                 }
 142             }
 143         }
 144         return event;
 145     };
 146     final EventDispatcher preemptivePopupEventDispatcher = (event, tail) -> {
 147 
 148         // block the event from being passed down to children
 149         if (event instanceof KeyEvent && event.getEventType() == KeyEvent.KEY_PRESSED) {
 150             if (!((KeyEvent)event).isMetaDown() && !((KeyEvent)event).isControlDown()  && !((KeyEvent)event).isAltDown()) {
 151                 if (!isExternalFocus()) {
 152                     //
 153                     // don't let the behaviour leak any navigation keys when
 154                     // we're not in blocking mode....
 155                     //
 156                     Object obj = event.getTarget();
 157                     switch (((KeyEvent)event).getCode()) {
 158                       case TAB :
 159                       case ENTER :
 160                           event.consume();
 161                           break;
 162                       case UP :
 163                       case DOWN :
 164                           break;
 165                       case LEFT :
 166                           if (obj instanceof Node) {
 167                               ((Node)obj).impl_traverse(com.sun.javafx.scene.traversal.Direction.LEFT);
 168                               event.consume();
 169                           }
 170                           else if (obj instanceof Scene) {
 171                               Node node = ((Scene)obj).getFocusOwner();
 172                               if (node != null) {
 173                                   node.impl_traverse(com.sun.javafx.scene.traversal.Direction.LEFT);
 174                                   event.consume();
 175                               }
 176                           }
 177                           break;
 178                       case RIGHT :
 179                           if (obj instanceof Node) {
 180                               ((Node)obj).impl_traverse(com.sun.javafx.scene.traversal.Direction.RIGHT);
 181                               event.consume();
 182                           }
 183                           else if (obj instanceof Scene) {
 184                               Node node = ((Scene)obj).getFocusOwner();
 185                               if (node != null) {
 186                                   node.impl_traverse(com.sun.javafx.scene.traversal.Direction.RIGHT);
 187                                   event.consume();
 188                               }
 189                           }
 190                           break;
 191 
 192                       default :
 193                           // this'll kill mnemonics.... unless!
 194                           Scene s = null;
 195                           if (tlNode != null) {
 196                               s = tlNode.getScene();
 197                               Event.fireEvent(s, event);
 198                           }
 199                           event.consume();
 200                           break;
 201                     }
 202                 }
 203             }
 204         }
 205         return event;
 206     };




   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.javafx.scene.control.behavior;
  27 
  28 import com.sun.javafx.scene.NodeHelper;
  29 import javafx.scene.Node;
  30 import javafx.scene.control.PopupControl;
  31 
  32 import javafx.scene.Scene;
  33 import javafx.scene.input.KeyEvent;
  34 
  35 import javafx.beans.value.ChangeListener;
  36 import javafx.event.Event;
  37 import javafx.event.EventDispatcher;
  38 import javafx.event.EventHandler;
  39 import javafx.scene.input.MouseEvent;
  40 
  41 
  42 public class TwoLevelFocusPopupBehavior extends TwoLevelFocusBehavior {
  43 
  44     public TwoLevelFocusPopupBehavior(PopupControl popup) {
  45 
  46         tlPopup = popup;
  47 
  48         setExternalFocus(false);  // popups go straight to internal focus


  88 
  89     /*
  90     ** don't allow the Node to handle a key event if it is in externalFocus mode.
  91     ** the only keyboard actions allowed are the navigation keys......
  92     */
  93     final EventDispatcher preemptiveEventDispatcher = (event, tail) -> {
  94 
  95         // block the event from being passed down to children
  96         if (event instanceof KeyEvent && event.getEventType() == KeyEvent.KEY_PRESSED) {
  97             if (!((KeyEvent)event).isMetaDown() && !((KeyEvent)event).isControlDown()  && !((KeyEvent)event).isAltDown()) {
  98                 if (isExternalFocus()) {
  99                     //
 100                     // don't let the behaviour leak any navigation keys when
 101                     // we're not in blocking mode....
 102                     //
 103                     Object obj = event.getTarget();
 104 
 105                     switch (((KeyEvent)event).getCode()) {
 106                       case TAB :
 107                           if (((KeyEvent)event).isShiftDown()) {
 108                               NodeHelper.traverse((Node) obj, com.sun.javafx.scene.traversal.Direction.PREVIOUS);
 109                           }
 110                           else {
 111                               NodeHelper.traverse((Node) obj, com.sun.javafx.scene.traversal.Direction.NEXT);
 112                           }
 113                           event.consume();
 114                           break;
 115                       case UP :
 116                           NodeHelper.traverse((Node) obj, com.sun.javafx.scene.traversal.Direction.UP);
 117                           event.consume();
 118                           break;
 119                       case DOWN :
 120                           NodeHelper.traverse((Node) obj, com.sun.javafx.scene.traversal.Direction.DOWN);
 121                           event.consume();
 122                           break;
 123                       case LEFT :
 124                           NodeHelper.traverse((Node) obj, com.sun.javafx.scene.traversal.Direction.LEFT);
 125                           event.consume();
 126                           break;
 127                       case RIGHT :
 128                           NodeHelper.traverse((Node) obj, com.sun.javafx.scene.traversal.Direction.RIGHT);
 129                           event.consume();
 130                           break;
 131                       case ENTER :
 132                           setExternalFocus(false);
 133                           event.consume();
 134                           break;
 135                       default :
 136                           // this'll kill mnemonics.... unless!
 137                           Scene s = tlNode.getScene();
 138                           Event.fireEvent(s, event);
 139                           event.consume();
 140                           break;
 141                     }
 142                 }
 143             }
 144         }
 145         return event;
 146     };
 147     final EventDispatcher preemptivePopupEventDispatcher = (event, tail) -> {
 148 
 149         // block the event from being passed down to children
 150         if (event instanceof KeyEvent && event.getEventType() == KeyEvent.KEY_PRESSED) {
 151             if (!((KeyEvent)event).isMetaDown() && !((KeyEvent)event).isControlDown()  && !((KeyEvent)event).isAltDown()) {
 152                 if (!isExternalFocus()) {
 153                     //
 154                     // don't let the behaviour leak any navigation keys when
 155                     // we're not in blocking mode....
 156                     //
 157                     Object obj = event.getTarget();
 158                     switch (((KeyEvent)event).getCode()) {
 159                       case TAB :
 160                       case ENTER :
 161                           event.consume();
 162                           break;
 163                       case UP :
 164                       case DOWN :
 165                           break;
 166                       case LEFT :
 167                           if (obj instanceof Node) {
 168                               NodeHelper.traverse((Node) obj, com.sun.javafx.scene.traversal.Direction.LEFT);
 169                               event.consume();
 170                           }
 171                           else if (obj instanceof Scene) {
 172                               Node node = ((Scene)obj).getFocusOwner();
 173                               if (node != null) {
 174                                   NodeHelper.traverse(node, com.sun.javafx.scene.traversal.Direction.LEFT);
 175                                   event.consume();
 176                               }
 177                           }
 178                           break;
 179                       case RIGHT :
 180                           if (obj instanceof Node) {
 181                               NodeHelper.traverse((Node) obj, com.sun.javafx.scene.traversal.Direction.RIGHT);
 182                               event.consume();
 183                           }
 184                           else if (obj instanceof Scene) {
 185                               Node node = ((Scene)obj).getFocusOwner();
 186                               if (node != null) {
 187                                   NodeHelper.traverse(node, com.sun.javafx.scene.traversal.Direction.RIGHT);
 188                                   event.consume();
 189                               }
 190                           }
 191                           break;
 192 
 193                       default :
 194                           // this'll kill mnemonics.... unless!
 195                           Scene s = null;
 196                           if (tlNode != null) {
 197                               s = tlNode.getScene();
 198                               Event.fireEvent(s, event);
 199                           }
 200                           event.consume();
 201                           break;
 202                     }
 203                 }
 204             }
 205         }
 206         return event;
 207     };


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