added a preference so user can specify browser to open html page

editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/actions/RunInBrowserAction.java

Index: editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/actions/RunInBrowserAction.java
===================================================================
--- editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/actions/RunInBrowserAction.java	(revision 2077)
+++ editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/actions/RunInBrowserAction.java	(working copy)
@@ -1,386 +0,0 @@
-/*
- * Copyright (c) 2011, 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.ui.actions;
-
-import com.google.dart.compiler.backend.js.JavascriptBackend;
-import com.google.dart.tools.core.DartCore;
-import com.google.dart.tools.core.DartCoreDebug;
-import com.google.dart.tools.core.internal.model.DartLibraryImpl;
-import com.google.dart.tools.core.model.DartElement;
-import com.google.dart.tools.core.model.DartLibrary;
-import com.google.dart.tools.core.model.DartModelException;
-import com.google.dart.tools.core.model.HTMLFile;
-import com.google.dart.tools.ui.DartPluginImages;
-import com.google.dart.tools.ui.DartToolsPlugin;
-import com.google.dart.tools.ui.ImportedDartLibraryContainer;
-import com.google.dart.tools.ui.internal.util.ExceptionHandler;
-
-import org.eclipse.core.resources.IFile;
-import org.eclipse.core.resources.IResource;
-import org.eclipse.core.resources.ResourcesPlugin;
-import org.eclipse.core.runtime.IPath;
-import org.eclipse.core.runtime.IProgressMonitor;
-import org.eclipse.core.runtime.IStatus;
-import org.eclipse.core.runtime.Status;
-import org.eclipse.jface.action.Action;
-import org.eclipse.jface.dialogs.MessageDialog;
-import org.eclipse.jface.viewers.ArrayContentProvider;
-import org.eclipse.jface.viewers.ISelection;
-import org.eclipse.jface.viewers.ISelectionChangedListener;
-import org.eclipse.jface.viewers.IStructuredSelection;
-import org.eclipse.jface.viewers.SelectionChangedEvent;
-import org.eclipse.jface.viewers.StructuredSelection;
-import org.eclipse.osgi.util.NLS;
-import org.eclipse.ui.IEditorPart;
-import org.eclipse.ui.IEditorReference;
-import org.eclipse.ui.IEditorRegistry;
-import org.eclipse.ui.IFileEditorInput;
-import org.eclipse.ui.IPartListener;
-import org.eclipse.ui.ISelectionListener;
-import org.eclipse.ui.IWorkbenchPage;
-import org.eclipse.ui.IWorkbenchPart;
-import org.eclipse.ui.IWorkbenchWindow;
-import org.eclipse.ui.PartInitException;
-import org.eclipse.ui.dialogs.ListDialog;
-import org.eclipse.ui.model.WorkbenchLabelProvider;
-import org.eclipse.ui.part.FileEditorInput;
-import org.eclipse.ui.progress.UIJob;
-
-import java.io.File;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Set;
-
-/**
- * A menu for opening html files in the system browser.
- */
-public class RunInBrowserAction extends Action implements ISelectionChangedListener,
-    ISelectionListener, IPartListener {
-
-  class RunInBrowserJob extends UIJob {
-    private IWorkbenchPage page;
-    private IFile file;
-
-    public RunInBrowserJob(IWorkbenchPage page, IFile file) {
-      super(page.getWorkbenchWindow().getShell().getDisplay(),
-          ActionMessages.OpenInBrowserAction_jobTitle);
-
-      this.page = page;
-      this.file = file;
-
-      // Synchronize on the workspace root to catch any builds that are in progress.
-      setRule(ResourcesPlugin.getWorkspace().getRoot());
-
-      // Make sure we display a progress dialog if we do block.
-      setUser(true);
-    }
-
-    @Override
-    public IStatus runInUIThread(IProgressMonitor monitor) {
-      launchBrowserForHtmlFile(page, file);
-
-      return Status.OK_STATUS;
-    }
-  }
-
-  /**
-   * The id of this action.
-   */
-  public static final String ACTION_ID = DartToolsPlugin.PLUGIN_ID + ".runInBrowserAction"; //$NON-NLS-1$
-
-  public static File getJsAppArtifactFile(IPath sourceLocation) {
-    return sourceLocation.addFileExtension(JavascriptBackend.EXTENSION_APP_JS).toFile();
-  }
-
-  private IWorkbenchWindow window;
-
-  private Object selectedObject;
-
-  /**
-   * Match both the input and id, so that different types of editor can be opened on the same input.
-   */
-  private static final int MATCH_BOTH = IWorkbenchPage.MATCH_INPUT | IWorkbenchPage.MATCH_ID;
-
-  public RunInBrowserAction(IWorkbenchWindow window) {
-    this.window = window;
-
-    setText(ActionMessages.OpenInBrowserAction_title);
-    setId(ACTION_ID);
-    setDescription(ActionMessages.OpenInBrowserAction_description);
-    setToolTipText(ActionMessages.OpenInBrowserAction_toolTip);
-    if (DartCoreDebug.BLEEDING_EDGE) {
-      setImageDescriptor(DartToolsPlugin.getImageDescriptor("icons/full/dart16/run_client.png"));
-    } else {
-      setImageDescriptor(DartPluginImages.DESC_TOOL_RUN);
-    }
-    setEnabled(false);
-
-    window.getPartService().addPartListener(this);
-    window.getSelectionService().addSelectionListener(this);
-  }
-
-  @Override
-  public void partActivated(IWorkbenchPart part) {
-    if (part instanceof IEditorPart) {
-      handleEditorActivated((IEditorPart) part);
-    }
-  }
-
-  @Override
-  public void partBroughtToTop(IWorkbenchPart part) {
-
-  }
-
-  @Override
-  public void partClosed(IWorkbenchPart part) {
-
-  }
-
-  @Override
-  public void partDeactivated(IWorkbenchPart part) {
-
-  }
-
-  @Override
-  public void partOpened(IWorkbenchPart part) {
-
-  }
-
-  @Override
-  public void run() {
-    openInBrowser(window.getActivePage());
-  }
-
-  @Override
-  public void selectionChanged(IWorkbenchPart part, ISelection selection) {
-    if (selection instanceof IStructuredSelection) {
-      handleSelectionChanged((IStructuredSelection) selection);
-    }
-  }
-
-  @Override
-  public void selectionChanged(SelectionChangedEvent event) {
-    if (event.getSelection() instanceof IStructuredSelection) {
-      handleSelectionChanged((IStructuredSelection) event.getSelection());
-    }
-  }
-
-  void launchBrowserForHtmlFile(IWorkbenchPage page, IFile file) {
-    DartElement element = DartCore.create(file);
-
-    if (element == null) {
-      MessageDialog.openError(window.getShell(), ActionMessages.OpenInBrowserAction_unableToLaunch,
-          ActionMessages.OpenInBrowserAction_notInDartLib);
-    } else if (!(element instanceof HTMLFile)) {
-      MessageDialog.openError(window.getShell(), ActionMessages.OpenInBrowserAction_unableToLaunch,
-          ActionMessages.OpenInBrowserAction_notAnHtmlFile);
-    } else {
-      // check that the js output file exists
-      HTMLFile htmlFile = (HTMLFile) element;
-
-      try {
-        if (htmlFile.getReferencedLibraries().length > 0) {
-          DartLibrary library = htmlFile.getReferencedLibraries()[0];
-          File jsOutFile = getJsAppArtifactFile(library.getCorrespondingResource().getLocation());
-
-          if (jsOutFile.exists()) {
-            try {
-              String editorId = IEditorRegistry.SYSTEM_EXTERNAL_EDITOR_ID;
-              page.openEditor(new FileEditorInput(file), editorId, true, MATCH_BOTH);
-            } catch (PartInitException e) {
-              ExceptionHandler.handle(e, window.getShell(),
-                  ActionMessages.OpenInBrowserAction_title,
-                  ActionMessages.OpenInBrowserAction_couldNotOpenFile);
-            }
-          } else {
-            MessageDialog.openError(
-                window.getShell(),
-                ActionMessages.OpenInBrowserAction_unableToLaunch,
-                NLS.bind(ActionMessages.OpenInBrowserAction_noJSFile, file.getName(),
-                    library.getDisplayName()));
-          }
-        }
-      } catch (DartModelException ex) {
-        ExceptionHandler.handle(ex, window.getShell(), ActionMessages.OpenInBrowserAction_title,
-            ActionMessages.OpenInBrowserAction_couldNotOpenFile);
-      }
-    }
-  }
-
-  void openInBrowser(IWorkbenchPage page) {
-    try {
-      List<IFile> files = getFileResourcesForSelection();
-
-      IFile file = null;
-
-      if (files.size() == 0) {
-        MessageDialog.openError(window.getShell(), ActionMessages.OpenInBrowserAction_noFileTitle,
-            ActionMessages.OpenInBrowserAction_noFileMessage);
-      } else if (files.size() == 1) {
-        file = files.get(0);
-      } else {
-        file = chooseHtmlFile(files);
-      }
-
-      if (file != null) {
-        boolean isSaveNeeded = isSaveAllNeeded(page);
-
-        if (isSaveNeeded) {
-          if (!saveDirtyEditors(page)) {
-            // The user cancelled the launch.
-            return;
-          }
-        }
-
-        RunInBrowserJob job = new RunInBrowserJob(page, file);
-
-        // If we saved any files, delay for a bit to allow the builder to fire off a build.
-        // Once the builder starts, we will automatically wait for it to complete before launching.
-        job.schedule(isSaveNeeded ? 100 : 0);
-      }
-    } catch (DartModelException e) {
-      ExceptionHandler.handle(e, window.getShell(), ActionMessages.OpenInBrowserAction_title,
-          ActionMessages.OpenInBrowserAction_couldNotOpenFile);
-    }
-  }
-
-  private IFile chooseHtmlFile(List<IFile> htmlFiles) {
-    ListDialog dialog = new ListDialog(window.getShell());
-
-    dialog.setTitle(ActionMessages.OpenInBrowserAction_selectFileTitle);
-    dialog.setMessage(ActionMessages.OpenInBrowserAction_selectFileMessage);
-    dialog.setLabelProvider(new WorkbenchLabelProvider());
-    dialog.setContentProvider(new ArrayContentProvider());
-    dialog.setInput(htmlFiles);
-
-    dialog.open();
-
-    Object[] result = dialog.getResult();
-
-    if (result == null || result.length == 0) {
-      return null;
-    }
-
-    return (IFile) result[0];
-  }
-
-  private List<IFile> getFileResourcesForSelection() throws DartModelException {
-    IResource resource = null;
-    DartElement element = null;
-
-    if (selectedObject == null) {
-      return Collections.emptyList();
-    }
-
-    if (selectedObject instanceof IResource) {
-      resource = (IResource) selectedObject;
-    }
-
-    if (resource != null) {
-      // html file
-      if (isHtmlFile(resource)) {
-        return Collections.singletonList((IFile) resource);
-      }
-
-      // other resource
-      element = DartCore.create(resource);
-    }
-
-    if (selectedObject instanceof DartElement) {
-      element = (DartElement) selectedObject;
-    }
-
-    // HTMLFile
-    if (element instanceof HTMLFile) {
-      HTMLFile htmlFile = (HTMLFile) element;
-
-      return Collections.singletonList((IFile) htmlFile.getCorrespondingResource());
-    }
-
-    if (selectedObject instanceof ImportedDartLibraryContainer) {
-      element = ((ImportedDartLibraryContainer) selectedObject).getDartLibrary();
-    }
-
-    if (element == null) {
-      return Collections.emptyList();
-    } else {
-      // DartElement in a library
-      DartLibrary library = element.getAncestor(DartLibrary.class);
-
-      if (library != null) {
-        List<IFile> htmlFiles = getHtmlFilesFor(library);
-
-        if (htmlFiles.size() > 0) {
-          return htmlFiles;
-        }
-      }
-
-      return Collections.emptyList();
-    }
-  }
-
-  private List<IFile> getHtmlFilesFor(DartLibrary library) throws DartModelException {
-    Set<IFile> files = new HashSet<IFile>();
-
-    for (HTMLFile file : ((DartLibraryImpl) library).getChildrenOfType(HTMLFile.class)) {
-      files.add((IFile) file.getUnderlyingResource());
-    }
-
-    return new ArrayList<IFile>(files);
-  }
-
-  private void handleEditorActivated(IEditorPart editorPart) {
-    if (editorPart.getEditorInput() instanceof IFileEditorInput) {
-      IFileEditorInput input = (IFileEditorInput) editorPart.getEditorInput();
-
-      handleSelectionChanged(new StructuredSelection(input.getFile()));
-    }
-  }
-
-  private void handleSelectionChanged(IStructuredSelection selection) {
-    if (selection != null && !selection.isEmpty()) {
-      selectedObject = selection.getFirstElement();
-    } else {
-      selectedObject = null;
-    }
-
-    try {
-      setEnabled(getFileResourcesForSelection().size() > 0);
-    } catch (DartModelException e) {
-      setEnabled(false);
-    }
-  }
-
-  private boolean isHtmlFile(IResource resource) {
-    return resource instanceof IFile && resource.getName().endsWith(".html");
-  }
-
-  private boolean isSaveAllNeeded(IWorkbenchPage page) {
-    IEditorReference[] editors = page.getEditorReferences();
-    for (int i = 0; i < editors.length; i++) {
-      IEditorReference ed = editors[i];
-      if (ed.isDirty()) {
-        return true;
-      }
-    }
-    return false;
-  }
-
-  private boolean saveDirtyEditors(IWorkbenchPage page) {
-    return page.saveAllEditors(false);
-  }
-
-}