Improve UI timeout

[lgpl/argeo-commons.git] / swt / org.argeo.cms.swt / src / org / argeo / cms / swt / CmsSwtUi.java

diff --git a/swt/org.argeo.cms.swt/src/org/argeo/cms/swt/CmsSwtUi.java b/swt/org.argeo.cms.swt/src/org/argeo/cms/swt/CmsSwtUi.java
index 2fb79f44394d19866ee65a3159a7c1f691fdedb1..b16eb0f9e2b3a8912ed782efeb514c7f8abdea3f 100644 (file)
--- a/swt/org.argeo.cms.swt/src/org/argeo/cms/swt/CmsSwtUi.java
+++ b/swt/org.argeo.cms.swt/src/org/argeo/cms/swt/CmsSwtUi.java
@@ -1,6 +1,9 @@
 package org.argeo.cms.swt;
 
+import java.util.TimerTask;
+
 import org.argeo.api.cms.ux.CmsUi;
+import org.argeo.api.cms.ux.CmsView;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Composite;
 
@@ -9,9 +12,62 @@ public class CmsSwtUi extends Composite implements CmsUi {
 
        private static final long serialVersionUID = -107939076610406448L;
 
+       /** Last time the UI was accessed. */
+       private long lastAccess = System.currentTimeMillis();
+       private TimerTask timeoutTask;
+       private long uiTimeout = 0;
+
+       private CmsView cmsView;
+
        public CmsSwtUi(Composite parent, int style) {
                super(parent, style);
+               cmsView = CmsSwtUtils.getCmsView(parent);
                setLayout(new GridLayout());
        }
 
+       @Override
+       public CmsView getCmsView() {
+               return cmsView;
+       }
+
+       @Override
+       public long getLastAccess() {
+               return lastAccess;
+       }
+
+       @Override
+       public void updateLastAccess() {
+               this.lastAccess = System.currentTimeMillis();
+       }
+
+       public void setUiTimeout(long uiTimeout) {
+               clearTimeoutTask();
+               this.uiTimeout = uiTimeout;
+               if (this.uiTimeout <= 0)
+                       return;
+               final long timeoutTaskPeriod = 60 * 60 * 1000;// 1h
+               timeoutTask = cmsView.schedule(() -> {
+                       disposeIfTimedout();
+               }, timeoutTaskPeriod, timeoutTaskPeriod);
+       }
+
+       /** Must be run in UI thread. */
+       public void disposeIfTimedout() {
+               if (isDisposed()) {
+                       clearTimeoutTask();
+                       return;
+               }
+               if (System.currentTimeMillis() - getLastAccess() >= uiTimeout) {
+                       dispose();
+                       clearTimeoutTask();
+               }
+       }
+
+       private void clearTimeoutTask() {
+               if (timeoutTask != null) {
+                       timeoutTask.cancel();
+                       timeoutTask = null;
+               }
+       }
+
 }
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