Merge branch 'patch/JAL-4196_structure_viewer_synchronising' into develop

[jalview.git] / src / jalview / gui / Desktop.java

diff --git a/src/jalview/gui/Desktop.java b/src/jalview/gui/Desktop.java
index 6f2faae..b901ae4 100644 (file)
--- a/src/jalview/gui/Desktop.java
+++ b/src/jalview/gui/Desktop.java
@@ -121,6 +121,7 @@ import jalview.io.FormatAdapter;
 import jalview.io.IdentifyFile;
 import jalview.io.JalviewFileChooser;
 import jalview.io.JalviewFileView;
+import jalview.io.exceptions.ImageOutputException;
 import jalview.jbgui.GSplitFrame;
 import jalview.jbgui.GStructureViewer;
 import jalview.project.Jalview2XML;
@@ -535,6 +536,9 @@ public class Desktop extends jalview.jbgui.GDesktop
       setBounds(xPos, yPos, 900, 650);
     }
 
+    // start dialogue queue for single dialogues
+    startDialogQueue();
+
     if (!Platform.isJS())
     /**
      * Java only
@@ -622,6 +626,12 @@ public class Desktop extends jalview.jbgui.GDesktop
       }
     });
     desktop.addMouseListener(ma);
+
+    if (Platform.isJS())
+    {
+      // used for jalviewjsTest
+      jalview.bin.Console.info("JALVIEWJS: CREATED DESKTOP");
+    }
   }
 
   /**
@@ -3050,7 +3060,7 @@ public class Desktop extends jalview.jbgui.GDesktop
   /**
    * pause the queue
    */
-  private java.util.concurrent.Semaphore block = new Semaphore(0);
+  private Semaphore block = new Semaphore(0);
 
   private static groovy.ui.Console groovyConsole;
 
@@ -3068,12 +3078,7 @@ public class Desktop extends jalview.jbgui.GDesktop
       {
         if (dialogPause)
         {
-          try
-          {
-            block.acquire();
-          } catch (InterruptedException x)
-          {
-          }
+          acquireDialogQueue();
         }
         if (instance == null)
         {
@@ -3091,12 +3096,41 @@ public class Desktop extends jalview.jbgui.GDesktop
     });
   }
 
+  private boolean dialogQueueStarted = false;
+
   public void startDialogQueue()
   {
+    if (dialogQueueStarted)
+    {
+      return;
+    }
     // set the flag so we don't pause waiting for another permit and semaphore
     // the current task to begin
-    dialogPause = false;
+    releaseDialogQueue();
+    dialogQueueStarted = true;
+  }
+
+  public void acquireDialogQueue()
+  {
+    try
+    {
+      block.acquire();
+      dialogPause = true;
+    } catch (InterruptedException e)
+    {
+      jalview.bin.Console.debug("Interruption when acquiring DialogueQueue",
+              e);
+    }
+  }
+
+  public void releaseDialogQueue()
+  {
+    if (!dialogPause)
+    {
+      return;
+    }
     block.release();
+    dialogPause = false;
   }
 
   /**
@@ -3131,7 +3165,15 @@ public class Desktop extends jalview.jbgui.GDesktop
     String title = "View of desktop";
     ImageExporter exporter = new ImageExporter(writer, null, TYPE.EPS,
             title);
-    exporter.doExport(of, this, width, height, title);
+    try
+    {
+      exporter.doExport(of, this, width, height, title);
+    } catch (ImageOutputException ioex)
+    {
+      jalview.bin.Console.error(
+              "Unexpected error whilst writing Jalview desktop snapshot as EPS",
+              ioex);
+    }
   }
 
   /**
@@ -3571,4 +3613,38 @@ public class Desktop extends jalview.jbgui.GDesktop
       jalview.bin.Console.debug(Cache.getStackTraceString(e));
     }
   }
+
+  /**
+   * closes the current instance window, disposes and forgets about it.
+   */
+  public static void closeDesktop()
+  {
+    if (Desktop.instance != null)
+    {
+      Desktop.instance.closeAll_actionPerformed(null);
+      Desktop.instance.setVisible(false);
+      Desktop.instance.dispose();
+      Desktop.instance = null;
+    }
+  }
+
+  /**
+   * checks if any progress bars are being displayed in any of the windows managed by the desktop
+   * @return
+   */
+  public boolean operationsAreInProgress()
+  {
+    JInternalFrame[] frames = getAllFrames();
+    for (JInternalFrame frame:frames)
+    {
+      if (frame instanceof IProgressIndicator)
+      {
+        if (((IProgressIndicator)frame).operationInProgress())
+        {
+          return true;
+        }
+      }
+    }
+    return operationInProgress();
+  }
 }