Version 1.5.7

dart/editor/tools/plugins/com.google.dart.tools.debug.core/src/com/google/dart/tools/debug/core/dartium/CssScriptManager.java

 /*
  * Copyright (c) 2012, the Dart project authors.
  * 
  * Licensed under the Eclipse Public License v1.0 (the "License"); you may not use this file except
  * in compliance with the License. You may obtain a copy of the License at
  * 
  * http://www.eclipse.org/legal/epl-v10.html
  * 
  * Unless required by applicable law or agreed to in writing, software distributed under the License
  * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
  * or implied. See the License for the specific language governing permissions and limitations under
  * the License.
  */
 
 package com.google.dart.tools.debug.core.dartium;
 
 import com.google.dart.tools.core.utilities.resource.IFileUtilities;
 import com.google.dart.tools.debug.core.DartDebugCorePlugin;
 import com.google.dart.tools.debug.core.util.ResourceChangeManager;
 import com.google.dart.tools.debug.core.util.ResourceChangeParticipant;
 import com.google.dart.tools.debug.core.webkit.WebkitStyleSheetRef;
 
 import org.eclipse.core.resources.IFile;
 import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Status;
+import org.eclipse.core.runtime.jobs.Job;
 
 import java.io.IOException;
 import java.util.List;
 
 /**
  * Manage known css scripts loaded in the target browser. Listen for resource change events (using
  * the ResourceChangeManager class). When a css scripts changes on disk that the browser knows
  * about, send the new contents to the browser using the Webkit inspector protocol.
  */
 class CssScriptManager implements ResourceChangeParticipant {
+
+  private class UpdateCssFileJob extends Job {
+
+    IFile file;
+
+    public UpdateCssFileJob(IFile file) {
+      super("Updating file");
+      this.file = file;
+    }
+
+    @Override
+    protected IStatus run(IProgressMonitor monitor) {
+      String fileUrl = target.getResourceResolver().getUrlForResource(file);
+
+      if (fileUrl != null) {
+        List<WebkitStyleSheetRef> scripts = target.getConnection().getCSS().getStyleSheets();
+
+        for (WebkitStyleSheetRef ref : scripts) {
+          if (fileUrl.equals(ref.getSourceURL())) {
+            uploadNewSource(ref, file);
+          }
+        }
+      }
+
+      return Status.OK_STATUS;
+    }
+
+  }
+
   private DartiumDebugTarget target;
 
   public CssScriptManager(DartiumDebugTarget target) {
     this.target = target;
 
     ResourceChangeManager.getManager().addChangeParticipant(this);
   }
 
   public void dispose() {
     ResourceChangeManager.removeChangeParticipant(this);
   }
 
   @Override
   public void handleFileAdded(IFile file) {
     handleFileChanged(file);
   }
 
   @Override
   public void handleFileChanged(IFile file) {
     if ("css".equals(file.getFileExtension())) {
-      String fileUrl = target.getResourceResolver().getUrlForResource(file);
-
-      if (fileUrl != null) {
-        List<WebkitStyleSheetRef> scripts = target.getConnection().getCSS().getStyleSheets();
-
-        for (WebkitStyleSheetRef ref : scripts) {
-          if (fileUrl.equals(ref.getSourceURL())) {
-            uploadNewSource(ref, file);
-          }
-        }
-      }
+      UpdateCssFileJob job = new UpdateCssFileJob(file);
+      job.schedule();
     }
   }
 
   @Override
   public void handleFileRemoved(IFile file) {
 
   }
 
   private void uploadNewSource(WebkitStyleSheetRef ref, IFile file) {
     try {
       target.getConnection().getCSS().setStyleSheetText(
           ref.getStyleSheetId(),
           IFileUtilities.getContents(file));
     } catch (IOException e) {
       // We upload changed css scripts on a best-effort basis.
       //DartDebugCorePlugin.logError(e);
     } catch (CoreException e) {
       DartDebugCorePlugin.logError(e);
     }
   }
 
 }