rcp/org.argeo.cms.ui.rcp/src/org/argeo/cms/ui/rcp/CmsRcpDisplayFactory.java

   1 package org.argeo.cms.ui.rcp;
   2
   3 import java.nio.file.Path;
   4
   5 import org.argeo.api.cms.CmsApp;
   6 import org.argeo.util.OS;
   7 import org.eclipse.swt.widgets.Display;
   8 import org.osgi.service.event.EventAdmin;
   9
  10 /** Creates the SWT {@link Display} in a dedicated thread. */
  11 public class CmsRcpDisplayFactory {
  12         /** File name in a run directory */
  13         private final static String ARGEO_RCP_URL = "argeo.rcp.url";
  14
  15         /** There is only one display in RCP mode */
  16         private static Display display;
  17
  18         private CmsUiThread uiThread;
  19
  20         private boolean shutdown = false;
  21
  22         public void init() {
  23                 uiThread = new CmsUiThread();
  24                 uiThread.start();
  25
  26         }
  27
  28         public void destroy() {
  29                 shutdown = true;
  30                 display.wake();
  31                 try {
  32                         uiThread.join();
  33                 } catch (InterruptedException e) {
  34                         // silent
  35                 } finally {
  36                         uiThread = null;
  37                 }
  38         }
  39
  40         class CmsUiThread extends Thread {
  41
  42                 public CmsUiThread() {
  43                         super("CMS UI");
  44                 }
  45
  46                 @Override
  47                 public void run() {
  48                         display = Display.getDefault();
  49
  50 //                      for (String contextName : cmsApps.keySet()) {
  51 //                              openCmsApp(contextName);
  52 //                      }
  53
  54                         while (!shutdown) {
  55                                 if (!display.readAndDispatch())
  56                                         display.sleep();
  57                         }
  58                         display.dispose();
  59                         display = null;
  60                 }
  61         }
  62
  63         public static Display getDisplay() {
  64                 return display;
  65         }
  66
  67         public static void openCmsApp(EventAdmin eventAdmin, CmsApp cmsApp, String uiName) {
  68                 CmsRcpDisplayFactory.getDisplay().syncExec(() -> {
  69                         CmsRcpApp cmsRcpApp = new CmsRcpApp(uiName);
  70                         cmsRcpApp.setEventAdmin(eventAdmin);
  71                         cmsRcpApp.setCmsApp(cmsApp, null);
  72                         cmsRcpApp.initRcpApp();
  73                 });
  74         }
  75
  76         public static Path getUrlRunFile() {
  77                 return OS.getRunDir().resolve(CmsRcpDisplayFactory.ARGEO_RCP_URL);
  78         }
  79 }