org.argeo.cms.ui/src/org/argeo/cms/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 NONE = 0;
  24         public final static int ERROR = 1;
  25         public final static int INFORMATION = 2;
  26         public final static int QUESTION = 3;
  27         public final static int WARNING = 4;
  28         public final static int CONFIRM = 5;
  29         public final static int QUESTION_WITH_CANCEL = 6;
  30
  31         private int kind;
  32         private String message;
  33
  34         public CmsMessageDialog(Shell parentShell, String message, int kind) {
  35                 super(parentShell);
  36                 this.kind = kind;
  37                 this.message = message;
  38         }
  39
  40         protected Control createDialogArea(Composite parent) {
  41                 parent.setLayout(new GridLayout());
  42
  43                 TraverseListener traverseListener = new TraverseListener() {
  44                         private static final long serialVersionUID = -1158892811534971856L;
  45
  46                         public void keyTraversed(TraverseEvent e) {
  47                                 if (e.detail == SWT.TRAVERSE_RETURN)
  48                                         okPressed();
  49                                 else if (e.detail == SWT.TRAVERSE_ESCAPE)
  50                                         cancelPressed();
  51                         }
  52                 };
  53
  54                 // message
  55                 Composite body = new Composite(parent, SWT.NONE);
  56                 body.addTraverseListener(traverseListener);
  57                 GridLayout bodyGridLayout = new GridLayout();
  58                 bodyGridLayout.marginHeight = 20;
  59                 bodyGridLayout.marginWidth = 20;
  60                 body.setLayout(bodyGridLayout);
  61                 body.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
  62
  63                 Label messageLbl = new Label(body, SWT.WRAP);
  64                 CmsUiUtils.markup(messageLbl);
  65                 messageLbl.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
  66                 messageLbl.setFont(EclipseUiUtils.getBoldFont(parent));
  67                 if (message != null)
  68                         messageLbl.setText(message);
  69
  70                 // buttons
  71                 Composite buttons = new Composite(parent, SWT.NONE);
  72                 buttons.addTraverseListener(traverseListener);
  73                 buttons.setLayoutData(new GridData(SWT.END, SWT.FILL, true, false));
  74                 if (kind == INFORMATION || kind == WARNING || kind == ERROR || kind == ERROR) {
  75                         GridLayout layout = new GridLayout(1, true);
  76                         layout.marginWidth = 0;
  77                         layout.marginHeight = 0;
  78                         buttons.setLayout(layout);
  79
  80                         Button close = new Button(buttons, SWT.FLAT);
  81                         close.setText(CmsMsg.close.lead());
  82                         close.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false));
  83                         close.addSelectionListener((Selected) (e) -> closeShell(OK));
  84                         close.setFocus();
  85                         close.addTraverseListener(traverseListener);
  86
  87                         buttons.setTabList(new Control[] { close });
  88                 } else if (kind == CONFIRM || kind == QUESTION || kind == QUESTION_WITH_CANCEL) {
  89                         Control input = createInputArea(body);
  90                         if (input != null) {
  91                                 input.addTraverseListener(traverseListener);
  92                                 body.setTabList(new Control[] { input });
  93                         }
  94                         GridLayout layout = new GridLayout(2, true);
  95                         layout.marginWidth = 0;
  96                         layout.marginHeight = 0;
  97                         buttons.setLayout(layout);
  98
  99                         Button cancel = new Button(buttons, SWT.FLAT);
 100                         cancel.setText(CmsMsg.cancel.lead());
 101                         cancel.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false));
 102                         cancel.addSelectionListener((Selected) (e) -> cancelPressed());
 103                         cancel.addTraverseListener(traverseListener);
 104
 105                         Button ok = new Button(buttons, SWT.FLAT);
 106                         ok.setText(CmsMsg.ok.lead());
 107                         ok.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false));
 108                         ok.addSelectionListener((Selected) (e) -> okPressed());
 109                         ok.addTraverseListener(traverseListener);
 110                         if (input == null)
 111                                 ok.setFocus();
 112                         else
 113                                 input.setFocus();
 114
 115                         buttons.setTabList(new Control[] { ok, cancel });
 116                 }
 117                 // pack();
 118                 parent.setTabList(new Control[] { body, buttons });
 119                 return body;
 120         }
 121
 122         protected Control createInputArea(Composite parent) {
 123                 return null;
 124         }
 125
 126         protected void okPressed() {
 127                 closeShell(OK);
 128         }
 129
 130         protected void cancelPressed() {
 131                 closeShell(CANCEL);
 132         }
 133
 134         protected Point getInitialSize() {
 135                 return new Point(400, 200);
 136         }
 137
 138         public static boolean open(int kind, Shell parent, String message) {
 139                 CmsMessageDialog dialog = new CmsMessageDialog(parent, message, kind);
 140                 return dialog.open() == 0;
 141         }
 142
 143         public static boolean openConfirm(String message) {
 144                 return open(CONFIRM, Display.getCurrent().getActiveShell(), message);
 145         }
 146
 147         public static void openInformation(String message) {
 148                 open(INFORMATION, Display.getCurrent().getActiveShell(), message);
 149         }
 150
 151         public static boolean openQuestion(String message) {
 152                 return open(QUESTION, Display.getCurrent().getActiveShell(), message);
 153         }
 154
 155         public static void openWarning(String message) {
 156                 open(WARNING, Display.getCurrent().getActiveShell(), message);
 157         }
 158
 159         public static void openError(String message) {
 160                 open(ERROR, Display.getCurrent().getActiveShell(), message);
 161         }
 162
 163 }