1 /*******************************************************************************

     2  * Copyright (c) 2008, 2010 Nokia Corporation and/or its subsidiary(-ies).

     3  * All rights reserved. This program and the accompanying materials

     4  * are made available under the terms of the Eclipse Public License v1.0

     5  * which accompanies this distribution, and is available at

     6  * http://www.eclipse.org/legal/epl-v10.html

     7  *

     8  * Contributors:

     9  *     Nokia Corporation - initial implementation

    10  *******************************************************************************/

    11 package org.eclipse.swt.internal.qt;

    12 

    13 import org.eclipse.ercp.swt.mobile.Command;

    14 import org.eclipse.swt.internal.qt.CommandArranger.CommandCollection;

    15 import org.eclipse.swt.widgets.Control;

    16 import org.eclipse.swt.widgets.Internal_PackageSupport;

    17 import org.eclipse.swt.widgets.Shell;

    18 import org.eclipse.swt.widgets.Widget;

    19 

    20 public class DesktopCommandPresentationStrategy extends

    21         CommandPresentationStrategy {

    22 

    23     private int commandsMenu;

    24     private int commandsMenuAction;

    25     private Control previousFocus;

    26 

    27     public DesktopCommandPresentationStrategy(){

    28         super();

    29         initCommandsMenu();

    30     }

    31 

    32     protected void handleCommandListChange(Command added, Command removed,

    33             CommandCollection commands) {

    34 

    35         Shell shell = null;

    36         if ( added != null ){

    37             shell = added.control.getShell();

    38             OS.QMenu_addAction(commandsMenu, handle(added) );

    39         }

    40         else{

    41             shell = removed.control.getShell();

    42             OS.QWidget_removeAction(commandsMenu, handle(removed) );

    43         }

    44 

    45         OS.QMenuBar_addAction(shell.internal_getOwnMenuBar(), commandsMenuAction );

    46     }

    47 

    48     protected void handleFocusChange(Control focused,

    49             CommandCollection oldCommands, CommandCollection commands) {

    50         Shell shell = focused.getShell();

    51 

    52         if( oldCommands != null && oldCommands.getSize() >0 ){

    53             Command[] remove = oldCommands.getCommands(null);

    54             for(int i=0; i< remove.length; i++){

    55                 if (previousFocus!= null && remove[i].control == previousFocus){

    56                     OS.QWidget_removeAction(handle(previousFocus), handle(remove[i]));

    57                 }else{

    58                     OS.QWidget_removeAction(commandsMenu, handle(remove[i]));

    59                 }

    60             }

    61         }

    62 

    63         if ( commands != null && commands.getSize() > 0 ){

    64             OS.QMenuBar_addAction(shell.internal_getOwnMenuBar(), commandsMenuAction );

    65             Command[] add = commands.getCommands(null);

    66             CommandUtils.sort(add);

    67             for(int i=0 ; i < add.length; i++){

    68                 if ( add[i].control != focused ){

    69                     OS.QMenu_addAction( commandsMenu, handle(add[i]) );

    70                 }

    71                 else{

    72                     OS.QWidget_addAction(handle(focused), handle(add[i]));

    73                 }

    74                 if (add[i].isDefaultCommand() )OS.QMenu_setDefaultAction( commandsMenu, handle(add[i]) );

    75             }

    76         }

    77         //Store for use next time.

    78         previousFocus=focused;

    79     }

    80 

    81     protected void handleMenuBarChanged(int newMenuBar,

    82             CommandCollection commands) {

    83         OS.QMenuBar_addAction(newMenuBar, commandsMenuAction );

    84     }

    85 

    86 

    87     protected void dispose() {

    88         if (commandsMenu != 0 ){

    89             QObjectDeleteWrapper.deleteSafely( commandsMenu );

    90             commandsMenu = 0;

    91         }

    92         if (commandsMenuAction != 0 ){

    93             QObjectDeleteWrapper.deleteSafely( commandsMenuAction );

    94             commandsMenuAction = 0;

    95         }

    96     }

    97 

    98     private void initCommandsMenu (){

    99         commandsMenuAction = OS.QAction_new( 0 );

   100         OS.QAction_setText( commandsMenuAction, "Commands");

   101         commandsMenu = OS.QMenu_new( 0 );

   102         OS.QAction_setMenu( commandsMenuAction, commandsMenu );

   103     }

   104 

   105     protected void handleDefaultCommandChange(Command defaultCommand) {

   106         int handle = 0;

   107         if (defaultCommand != null ) handle = handle(defaultCommand);

   108         OS.QMenu_setDefaultAction( commandsMenu, handle );

   109     }

   110 

   111 

   112     private final int handle(Widget w) {

   113         return Internal_PackageSupport.handle(w);

   114     }

   115 }