bundles/org.simantics.document.swt.core/src/org/simantics/document/swt/core/widget/ButtonWidget.java

   1 /*******************************************************************************
   2  * Copyright (c) 2019 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     Semantum Oy - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.document.swt.core.widget;
  13
  14 import java.util.ArrayList;
  15 import java.util.Collection;
  16 import java.util.HashSet;
  17 import java.util.List;
  18
  19 import org.eclipse.swt.SWT;
  20 import org.eclipse.swt.events.SelectionListener;
  21 import org.eclipse.swt.widgets.Button;
  22 import org.eclipse.swt.widgets.Composite;
  23 import org.simantics.document.server.IEventCommand;
  24 import org.simantics.document.server.JSONObject;
  25 import org.simantics.document.server.bean.Command;
  26 import org.simantics.document.server.client.CommandManager;
  27 import org.simantics.document.server.client.WidgetData;
  28 import org.simantics.document.server.handler.AbstractEventHandler;
  29 import org.simantics.document.server.io.CommandContext;
  30 import org.simantics.document.server.io.CommandContextImpl;
  31 import org.simantics.document.server.io.CommandContextMutable;
  32 import org.simantics.document.server.io.ICommand;
  33 import org.simantics.document.server.io.JSONObjectUtils;
  34 import org.simantics.document.swt.core.SWTDocument;
  35 import org.simantics.document.swt.core.SWTViews;
  36 import org.simantics.document.swt.core.base.LeafWidgetManager;
  37 import org.simantics.document.swt.core.base.PostEventCommand;
  38 import org.simantics.document.swt.core.base.WidgetContainer;
  39 import org.simantics.utils.datastructures.Pair;
  40 import org.simantics.utils.ui.SWTUtils;
  41
  42 public class ButtonWidget extends LeafWidgetManager<Button> {
  43
  44         @Override
  45         protected void doUpdateProperties(SWTDocument document, Button control, JSONObject object) {
  46
  47                 if(control.isDisposed()) return;
  48
  49                 String text = object.getJSONField("text");
  50
  51                 control.setText(text);
  52
  53                 document.layout();
  54
  55         }
  56
  57         @Override
  58         protected Button doCreateControl(final SWTDocument document, Composite parent, final JSONObject object) {
  59
  60                 final Button label = new Button(parent, SWT.NONE);
  61
  62 //              final EventHandler onPress = object.getJSONField("onPress");
  63 //              label.addSelectionListener(new );
  64
  65                 return label;
  66         }
  67
  68     public static class ButtonCommandManager implements CommandManager<SWTDocument, WidgetContainer<Button>> {
  69
  70         @Override
  71         public Collection<Object> updateCommandListeners(final SWTDocument document, final JSONObject object,
  72                 WidgetContainer<Button> container) {
  73
  74             WidgetData wd = document.getWidget(JSONObjectUtils.getId(object));
  75             List<ICommand> commands = object.getJSONField("commands");
  76             HashSet<Object> listeners = new HashSet<Object>();
  77             List<Pair<WidgetData, ICommand>> data = new ArrayList<>();
  78             data.addAll(SWTViews.getTriggeredCommands(document, commands, "eventOut"));
  79             data.add(new Pair<WidgetData, ICommand>(wd, new Command("onPress")));
  80             SelectionListener listener = new ButtonSelectionListener(wd, data);
  81             Button button = container.getControl();
  82             if(!button.isDisposed()) {
  83                 button.addSelectionListener(listener);
  84                 listeners.add(listener);
  85             }
  86
  87             return listeners;
  88
  89         }
  90
  91         @Override
  92         public void removeListener(WidgetContainer<Button> container, Object listener) {
  93                 if(container.getControl().isDisposed()) return;
  94             if(listener instanceof SelectionListener)
  95                 container.getControl().removeSelectionListener((SelectionListener) listener);
  96         }
  97
  98     }
  99
 100     @Override
 101     public IEventCommand eventCommand(SWTDocument document, JSONObject object, WidgetContainer widget, ICommand command, CommandContext p) {
 102         if("onPress".equals(command.getCommand())) {
 103             CommandContextMutable context = new CommandContextImpl().merge(p);
 104             AbstractEventHandler onPress = object.getJSONField("onPress");
 105             return new PostEventCommand(document, onPress, context);
 106         }
 107         return null;
 108     }
 109
 110 }