Bug 49117 [Plan Item] Workbench needs hooks for new welcome support
M6 We need to provide an extension point and some interfaces to allow for a primary feature to declare a welcome page. This extension point will be tied the new IProduct being defined by the Core team and needs to have 3 states 1) Fill whole screen 2) Collapsed on the right when the user selects something and starts working 3) Disables when it is no longer of any use
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/IDEWorkbenchAdvisor.java
}
		};
		try {
			new ProgressMonitorDialog(null).run(false, false, runnable);
		} catch (InvocationTargetException e) {
			status.merge(new Status(IStatus.ERROR, IDEWorkbenchPlugin.IDE_WORKBENCH, 1, IDEWorkbenchMessages.getString("InternalError"), e.getTargetException())); 
		} catch (InterruptedException e) {
			status.merge(new Status(IStatus.ERROR, IDEWorkbenchPlugin.IDE_WORKBENCH, 1, IDEWorkbenchMessages.getString("InternalError"), e)); 
		}
		ErrorDialog.openError(
			null, 
			IDEWorkbenchMessages.getString("ProblemsSavingWorkspace"), 
			null, 
			status, 
			IStatus.ERROR | IStatus.WARNING);
		if (!status.isOK()) {
			IDEWorkbenchPlugin.log(IDEWorkbenchMessages.getString("ProblemsSavingWorkspace"), status); 
		}
	}
	/**
	 * Checks if the -newUpdates command line argument is present
	 * and if so, opens the update manager.
	 */
	private void checkUpdates() {
		boolean newUpdates = false;
		String[] commandLineArgs = Platform.getCommandLineArgs();
		for (int i = 0; i < commandLineArgs.length; i++) {
			if (commandLineArgs[i].equalsIgnoreCase("-newUpdates")) { 
				newUpdates = true;
				break;