ui/dialogs/CmsMessageDialog.java

   1 package org.argeo.cms.ui.dialogs;
   2
   3 import org.argeo.cms.CmsMsg;
   4 import org.argeo.cms.ui.util.CmsUiUtils;
   5 import org.argeo.eclipse.ui.EclipseUiUtils;
   6 import org.argeo.eclipse.ui.Selected;
   7 import org.argeo.eclipse.ui.dialogs.LightweightDialog;
   8 import org.eclipse.swt.SWT;
   9 import org.eclipse.swt.events.TraverseEvent;
  10 import org.eclipse.swt.events.TraverseListener;
  11 import org.eclipse.swt.graphics.Point;
  12 import org.eclipse.swt.layout.GridData;
  13 import org.eclipse.swt.layout.GridLayout;
  14 import org.eclipse.swt.widgets.Button;
  15 import org.eclipse.swt.widgets.Composite;
  16 import org.eclipse.swt.widgets.Control;
  17 import org.eclipse.swt.widgets.Display;
  18 import org.eclipse.swt.widgets.Label;
  19 import org.eclipse.swt.widgets.Shell;
  20
  21 /** Base class for dialogs displaying messages or small forms. */
  22 public class CmsMessageDialog extends LightweightDialog {
  23         public final static int INFORMATION = 2;
  24         public final static int QUESTION = 3;
  25         public final static int WARNING = 4;
  26         public final static int CONFIRM = 5;
  27
  28         private int kind;
  29         private String message;
  30
  31         public CmsMessageDialog(Shell parentShell, String message, int kind) {
  32                 super(parentShell);
  33                 this.kind = kind;
  34                 this.message = message;
  35         }
  36
  37         protected Control createDialogArea(Composite parent) {
  38                 parent.setLayout(new GridLayout());
  39
  40                 TraverseListener traverseListener = new TraverseListener() {
  41                         private static final long serialVersionUID = -1158892811534971856L;
  42
  43                         public void keyTraversed(TraverseEvent e) {
  44                                 if (e.detail == SWT.TRAVERSE_RETURN)
  45                                         okPressed();
  46                                 else if (e.detail == SWT.TRAVERSE_ESCAPE)
  47                                         cancelPressed();
  48                         }
  49                 };
  50
  51                 // message
  52                 Composite body = new Composite(parent, SWT.NONE);
  53                 body.addTraverseListener(traverseListener);
  54                 GridLayout bodyGridLayout = new GridLayout();
  55                 bodyGridLayout.marginHeight = 20;
  56                 bodyGridLayout.marginWidth = 20;
  57                 body.setLayout(bodyGridLayout);
  58                 body.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
  59
  60                 Label messageLbl = new Label(body, SWT.WRAP);
  61                 CmsUiUtils.markup(messageLbl);
  62                 messageLbl.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
  63                 messageLbl.setFont(EclipseUiUtils.getBoldFont(parent));
  64                 if (message != null)
  65                         messageLbl.setText(message);
  66
  67                 // buttons
  68                 Composite buttons = new Composite(parent, SWT.NONE);
  69                 buttons.addTraverseListener(traverseListener);
  70                 buttons.setLayoutData(new GridData(SWT.END, SWT.FILL, true, false));
  71                 if (kind == INFORMATION || kind == WARNING) {
  72                         GridLayout layout = new GridLayout(1, true);
  73                         layout.marginWidth = 0;
  74                         layout.marginHeight = 0;
  75                         buttons.setLayout(layout);
  76
  77                         Button close = new Button(buttons, SWT.FLAT);
  78                         close.setText(CmsMsg.close.lead());
  79                         close.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false));
  80                         close.addSelectionListener((Selected) (e) -> closeShell(OK));
  81                         close.setFocus();
  82                         close.addTraverseListener(traverseListener);
  83
  84                         buttons.setTabList(new Control[] { close });
  85                 } else if (kind == CONFIRM || kind == QUESTION) {
  86                         Control input = createInputArea(body);
  87                         if (input != null) {
  88                                 input.addTraverseListener(traverseListener);
  89                                 body.setTabList(new Control[] { input });
  90                         }
  91                         GridLayout layout = new GridLayout(2, true);
  92                         layout.marginWidth = 0;
  93                         layout.marginHeight = 0;
  94                         buttons.setLayout(layout);
  95
  96                         Button cancel = new Button(buttons, SWT.FLAT);
  97                         cancel.setText(CmsMsg.cancel.lead());
  98                         cancel.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false));
  99                         cancel.addSelectionListener((Selected) (e) -> cancelPressed());
 100                         cancel.addTraverseListener(traverseListener);
 101
 102                         Button ok = new Button(buttons, SWT.FLAT);
 103                         ok.setText(CmsMsg.ok.lead());
 104                         ok.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false));
 105                         ok.addSelectionListener((Selected) (e) -> okPressed());
 106                         ok.addTraverseListener(traverseListener);
 107                         if (input == null)
 108                                 ok.setFocus();
 109                         else
 110                                 input.setFocus();
 111
 112                         buttons.setTabList(new Control[] { ok, cancel });
 113                 }
 114                 // pack();
 115                 parent.setTabList(new Control[] { body, buttons });
 116                 return body;
 117         }
 118
 119         protected Control createInputArea(Composite parent) {
 120                 return null;
 121         }
 122
 123         protected void okPressed() {
 124                 closeShell(OK);
 125         }
 126
 127         protected void cancelPressed() {
 128                 closeShell(CANCEL);
 129         }
 130
 131         protected Point getInitialSize() {
 132                 return new Point(400, 200);
 133         }
 134
 135         public static boolean open(int kind, Shell parent, String message) {
 136                 CmsMessageDialog dialog = new CmsMessageDialog(parent, message, kind);
 137                 return dialog.open() == 0;
 138         }
 139
 140         public static boolean openConfirm(String message) {
 141                 return open(CONFIRM, Display.getCurrent().getActiveShell(), message);
 142         }
 143
 144         public static void openInformation(String message) {
 145                 open(INFORMATION, Display.getCurrent().getActiveShell(), message);
 146         }
 147
 148         public static boolean openQuestion(String message) {
 149                 return open(QUESTION, Display.getCurrent().getActiveShell(), message);
 150         }
 151
 152         public static void openWarning(String message) {
 153                 open(WARNING, Display.getCurrent().getActiveShell(), message);
 154         }
 155
 156 }