public void actionPerformed()

in taverna-perspective-myexperiment/src/main/java/org/apache/taverna/ui/perspectives/myexperiment/ResourcePreviewBrowser.java [559:681]
80 lines of code
24 McCabe index (conditional complexity)

  public void actionPerformed(ActionEvent e) {
	if (e.getSource().equals(this.bBack)) {
	  // "Back" button clicked

	  // update position in the history
	  iCurrentHistoryIdx--;

	  // enable or disable "back"/"forward" buttons as appropriate
	  bBack.setEnabled(iCurrentHistoryIdx > 0);
	  bForward.setEnabled(iCurrentHistoryIdx < alCurrentHistory.size() - 1);

	  // open requested preview from the history
	  this.createPreview(alCurrentHistory.get(iCurrentHistoryIdx));
	} else if (e.getSource().equals(this.bForward)) {
	  // "Forward" button clicked

	  // update position in the history
	  iCurrentHistoryIdx++;

	  // enable or disable "back"/"forward" buttons as appropriate
	  bBack.setEnabled(iCurrentHistoryIdx > 0);
	  bForward.setEnabled(iCurrentHistoryIdx < alCurrentHistory.size() - 1);

	  // open requested preview from the history
	  this.createPreview(alCurrentHistory.get(iCurrentHistoryIdx));
	} else if (e.getSource().equals(this.bRefresh)) {
	  // "Refresh" button clicked

	  // simply reload the same preview
	  this.createPreview(alCurrentHistory.get(iCurrentHistoryIdx));
	} else if (e.getSource().equals(this.bOpenInMyExp)) {
	  // "Open in myExperiment" button clicked
	  try {
	      Desktop.getDesktop().browse(new URI(this.rpcContent.getResourceURL()));
	  } catch (Exception ex) {
		logger.error("Failed while trying to open the URL in a standard browser; URL was: "
			+ this.rpcContent.getResourceURL() + "\nException was: " + ex);
	  }
	} else if (e.getSource().equals(this.bUpload)) {
	  /* ************************************************************************* */
	  Resource resource = this.rpcContent.getResource();
	  if (resource.getItemTypeName().equals("Workflow")) {
		UploadWorkflowDialog uploadWorkflowDialog = new UploadWorkflowDialog(this, true, resource, fileManager);

		if (uploadWorkflowDialog.launchUploadDialogAndPostIfRequired()) {
		  // "true" has been returned so update the resource
		  this.actionPerformed(new ActionEvent(this.bRefresh, 0, ""));
		}
	  }
	} else if (e.getSource().equals(this.bEditMetadata)) {
	  Resource resource = this.rpcContent.getResource();
	  if (resource.getItemTypeName().equals("Workflow")) {
		UploadWorkflowDialog uploadWorkflowDialog = new UploadWorkflowDialog(this, false, resource, fileManager);

		if (uploadWorkflowDialog.launchUploadDialogAndPostIfRequired()) {
		  // "true" has been returned so update the resource
		  this.actionPerformed(new ActionEvent(this.bRefresh, 0, ""));
		}
	  }
	  /* ************************************************************************* */
	} else if (e.getSource().equals(this.bAddComment)) {
	  // "Add Comment" button was clicked
	  String strComment = null;
	  AddCommentDialog commentDialog = new AddCommentDialog(this, this.rpcContent.getResource(), pluginMainComponent, myExperimentClient, logger);
	  if ((strComment = commentDialog.launchAddCommentDialogAndPostCommentIfRequired()) != null) {
		// comment was added because return value is not null;
		// a good option now would be to reload only the comments tab, but
		// for now we refresh the whole of the preview
		this.actionPerformed(new ActionEvent(this.bRefresh, 0, ""));

		// update history of the items that were commented on, making sure that:
		// - there's only one occurrence of this item in the history;
		// - if this item was in the history before, it is moved to the 'top' now;
		// - predefined history size is not exceeded
		this.pluginMainComponent.getHistoryBrowser().getCommentedOnItemsHistoryList().remove(this.rpcContent.getResource());
		this.pluginMainComponent.getHistoryBrowser().getCommentedOnItemsHistoryList().add(this.rpcContent.getResource());
		if (this.pluginMainComponent.getHistoryBrowser().getCommentedOnItemsHistoryList().size() > HistoryBrowserTabContentPanel.COMMENTED_ON_ITEMS_HISTORY) {
		  this.pluginMainComponent.getHistoryBrowser().getCommentedOnItemsHistoryList().remove(0);
		}

		// now update the history of the items that were commented on in 'History' tab
		if (this.pluginMainComponent.getHistoryBrowser() != null) {
		  this.pluginMainComponent.getHistoryBrowser().refreshHistoryBox(HistoryBrowserTabContentPanel.COMMENTED_ON_ITEMS_HISTORY);
		}
	  }
	} else if (e.getSource().equals(this.bAddRemoveFavourite)) {
	  boolean bItemIsFavourited = this.rpcContent.getResource().isFavouritedBy(this.myExperimentClient.getCurrentUser());

	  AddRemoveFavouriteDialog favouriteDialog = new AddRemoveFavouriteDialog(this, !bItemIsFavourited, this.rpcContent.getResource(), pluginMainComponent, myExperimentClient, logger);
	  int iFavouritingStatus = favouriteDialog.launchAddRemoveFavouriteDialogAndPerformNecessaryActionIfRequired();

	  // if the operation wasn't cancelled, update status of the
	  // "add/remove favourite" button and the list of favourites in the user profile
	  if (iFavouritingStatus != AddRemoveFavouriteDialog.OPERATION_CANCELLED) {
		this.updateButtonBarState(this.rpcContent);
		this.pluginMainComponent.getMyStuffTab().getSidebar().repopulateFavouritesBox();
		this.pluginMainComponent.getMyStuffTab().getSidebar().revalidate();
	  }
	} else if (e.getSource() instanceof JClickableLabel) {
	  // clicked somewhere on a JClickableLabel; if that's a 'preview' request - launch preview
	  if (e.getActionCommand().startsWith("preview:")) {
		this.preview(e.getActionCommand());
	  } else if (e.getActionCommand().startsWith("tag:")) {
		// pass this event onto the Tag Browser tab
		this.pluginMainComponent.getTagBrowserTab().actionPerformed(e);
		this.pluginMainComponent.getMainTabs().setSelectedComponent(this.pluginMainComponent.getTagBrowserTab());
	  } else {
		// show the link otherwise
		try {
		    Desktop.getDesktop().browse(new URI(e.getActionCommand()));
		} catch (Exception ex) {
		  logger.error("Failed while trying to open the URL in a standard browser; URL was: "
			  + e.getActionCommand() + "\nException was: " + ex);
		}
	  }
	} else if (e.getSource() instanceof TagCloudPanel
		&& e.getActionCommand().startsWith("tag:")) {
	  // close the window and pass this event onto the Tag Browser tab
	  this.setVisible(false);
	  this.pluginMainComponent.getTagBrowserTab().actionPerformed(e);
	  this.pluginMainComponent.getMainTabs().setSelectedComponent(this.pluginMainComponent.getTagBrowserTab());
	}
  }