content: /*******************************************************************************
   * Copyright (c) 2000, 2008 IBM Corporation and others.
   * All rights reserved. This program and the accompanying materials
   * are made available under the terms of the Eclipse Public License v1.0
   * which accompanies this distribution, and is available at
   * http://www.eclipse.org/legal/epl-v10.html
   *
   * Contributors:
   *     IBM Corporation - initial API and implementation
   *******************************************************************************/
  package org.eclipse.wst.jsdt.internal.ui.browsing;
  
  import org.eclipse.core.runtime.IAdaptable;
  import org.eclipse.debug.ui.IDebugUIConstants;
  import org.eclipse.search.ui.NewSearchUI;
  import org.eclipse.ui.IPageLayout;
  import org.eclipse.ui.IPerspectiveFactory;
  import org.eclipse.ui.IPlaceholderFolderLayout;
  import org.eclipse.ui.console.IConsoleConstants;
  import org.eclipse.ui.progress.IProgressConstants;
  import org.eclipse.wst.jsdt.core.IJavaScriptElement;
  import org.eclipse.wst.jsdt.ui.JavaScriptUI;
  import org.eclipse.wst.jsdt.ui.PreferenceConstants;
  
  
  public class JavaBrowsingPerspectiveFactory implements IPerspectiveFactory {
  
  	/*
  	 * XXX: This is a workaround for: http://dev.eclipse.org/bugs/show_bug.cgi?id=13070
  	 */
  	static IJavaScriptElement fgJavaElementFromAction;
  
  	/**
  	 * Constructs a new Default layout engine.
  	 */
  	public JavaBrowsingPerspectiveFactory() {
  		super();
  	}
  
  	public void createInitialLayout(IPageLayout layout) {
  		if (stackBrowsingViewsVertically())
  			createVerticalLayout(layout);
  		else
  			createHorizontalLayout(layout);
  
  		// action sets
  		layout.addActionSet(IDebugUIConstants.LAUNCH_ACTION_SET);
  		layout.addActionSet(JavaScriptUI.ID_ACTION_SET);
  		layout.addActionSet(JavaScriptUI.ID_ELEMENT_CREATION_ACTION_SET);
  		layout.addActionSet(IPageLayout.ID_NAVIGATE_ACTION_SET);
  
  		// views - java
  		layout.addShowViewShortcut(JavaScriptUI.ID_TYPE_HIERARCHY);
  		layout.addShowViewShortcut(JavaScriptUI.ID_PACKAGES);
  		layout.addShowViewShortcut(JavaScriptUI.ID_PROJECTS_VIEW);
  		layout.addShowViewShortcut(JavaScriptUI.ID_PACKAGES_VIEW);
  		layout.addShowViewShortcut(JavaScriptUI.ID_TYPES_VIEW);
  		layout.addShowViewShortcut(JavaScriptUI.ID_MEMBERS_VIEW);
  		layout.addShowViewShortcut(JavaScriptUI.ID_SOURCE_VIEW);
  		layout.addShowViewShortcut(JavaScriptUI.ID_JAVADOC_VIEW);
  
  		// views - search
  		layout.addShowViewShortcut(NewSearchUI.SEARCH_VIEW_ID);
  
  		// views - debugging
  		layout.addShowViewShortcut(IConsoleConstants.ID_CONSOLE_VIEW);
  
  		// views - standard workbench
  		layout.addShowViewShortcut(IPageLayout.ID_OUTLINE);
  		layout.addShowViewShortcut(IPageLayout.ID_PROBLEM_VIEW);
  		layout.addShowViewShortcut(IPageLayout.ID_RES_NAV);
  		layout.addShowViewShortcut(IPageLayout.ID_TASK_LIST);
  		layout.addShowViewShortcut(IProgressConstants.PROGRESS_VIEW_ID);
  
  		// new actions - Java project creation wizard
  		layout.addNewWizardShortcut("org.eclipse.wst.jsdt.ui.wizards.JavaProjectWizard"); //$NON-NLS-1$
  		layout.addNewWizardShortcut("org.eclipse.wst.jsdt.ui.wizards.NewPackageCreationWizard"); //$NON-NLS-1$
  		layout.addNewWizardShortcut("org.eclipse.wst.jsdt.ui.wizards.NewClassCreationWizard"); //$NON-NLS-1$
  		layout.addNewWizardShortcut("org.eclipse.wst.jsdt.ui.wizards.NewInterfaceCreationWizard"); //$NON-NLS-1$
  		layout.addNewWizardShortcut("org.eclipse.wst.jsdt.ui.wizards.NewEnumCreationWizard"); //$NON-NLS-1$
  		layout.addNewWizardShortcut("org.eclipse.wst.jsdt.ui.wizards.NewAnnotationCreationWizard"); //$NON-NLS-1$
  		layout.addNewWizardShortcut("org.eclipse.wst.jsdt.ui.wizards.NewSourceFolderCreationWizard");	 //$NON-NLS-1$
  		layout.addNewWizardShortcut("org.eclipse.wst.jsdt.ui.wizards.NewSnippetFileCreationWizard"); //$NON-NLS-1$
  		layout.addNewWizardShortcut("org.eclipse.ui.wizards.new.folder");//$NON-NLS-1$
  		layout.addNewWizardShortcut("org.eclipse.ui.wizards.new.file");//$NON-NLS-1$
  		layout.addNewWizardShortcut("org.eclipse.ui.editors.wizards.UntitledTextFileWizard");//$NON-NLS-1$
  	}
  
  	private void createVerticalLayout(IPageLayout layout) {
  		String relativePartId= IPageLayout.ID_EDITOR_AREA;
  		int relativePos= IPageLayout.LEFT;
  
  		IPlaceholderFolderLayout placeHolderLeft= layout.createPlaceholderFolder("left", IPageLayout.LEFT, (float)0.25, IPageLayout.ID_EDITOR_AREA); //$NON-NLS-1$
  		placeHolderLeft.addPlaceholder(JavaScriptUI.ID_TYPE_HIERARCHY);
  		placeHolderLeft.addPlaceholder(IPageLayout.ID_OUTLINE);
  		placeHolderLeft.addPlaceholder(JavaScriptUI.ID_PACKAGES);
  		placeHolderLeft.addPlaceholder(IPageLayout.ID_RES_NAV);
  
  		if (shouldShowProjectsView()) {
  			layout.addView(JavaScriptUI.ID_PROJECTS_VIEW, IPageLayout.LEFT, (float)0.25, IPageLayout.ID_EDITOR_AREA);
  			relativePartId= JavaScriptUI.ID_PROJECTS_VIEW;
  			relativePos= IPageLayout.BOTTOM;
  		}
  		if (shouldShowPackagesView()) {
  			layout.addView(JavaScriptUI.ID_PACKAGES_VIEW, relativePos, (float)0.25, relativePartId);
  			relativePartId= JavaScriptUI.ID_PACKAGES_VIEW;
  			relativePos= IPageLayout.BOTTOM;
  		}
  		layout.addView(JavaScriptUI.ID_TYPES_VIEW, relativePos, (float)0.33, relativePartId);
  		layout.addView(JavaScriptUI.ID_MEMBERS_VIEW, IPageLayout.BOTTOM, (float)0.50, JavaScriptUI.ID_TYPES_VIEW);
  
  		IPlaceholderFolderLayout placeHolderBottom= layout.createPlaceholderFolder("bottom", IPageLayout.BOTTOM, (float)0.75, IPageLayout.ID_EDITOR_AREA); //$NON-NLS-1$
  		placeHolderBottom.addPlaceholder(IPageLayout.ID_PROBLEM_VIEW);
  		placeHolderBottom.addPlaceholder(NewSearchUI.SEARCH_VIEW_ID);
  		placeHolderBottom.addPlaceholder(IConsoleConstants.ID_CONSOLE_VIEW);
  		placeHolderBottom.addPlaceholder(IPageLayout.ID_BOOKMARKS);
  		placeHolderBottom.addPlaceholder(JavaScriptUI.ID_SOURCE_VIEW);
  		placeHolderBottom.addPlaceholder(JavaScriptUI.ID_JAVADOC_VIEW);
  		placeHolderBottom.addPlaceholder(IProgressConstants.PROGRESS_VIEW_ID);
  	}
  
  	private void createHorizontalLayout(IPageLayout layout) {
  		String relativePartId= IPageLayout.ID_EDITOR_AREA;
  		int relativePos= IPageLayout.TOP;
  
  		if (shouldShowProjectsView()) {
  			layout.addView(JavaScriptUI.ID_PROJECTS_VIEW, IPageLayout.TOP, (float)0.25, IPageLayout.ID_EDITOR_AREA);
  			relativePartId= JavaScriptUI.ID_PROJECTS_VIEW;
  			relativePos= IPageLayout.RIGHT;
  		}
  		if (shouldShowPackagesView()) {
  			layout.addView(JavaScriptUI.ID_PACKAGES_VIEW, relativePos, (float)0.25, relativePartId);
  			relativePartId= JavaScriptUI.ID_PACKAGES_VIEW;
  			relativePos= IPageLayout.RIGHT;
  		}
  		layout.addView(JavaScriptUI.ID_TYPES_VIEW, relativePos, (float)0.33, relativePartId);
  		layout.addView(JavaScriptUI.ID_MEMBERS_VIEW, IPageLayout.RIGHT, (float)0.50, JavaScriptUI.ID_TYPES_VIEW);
  
  		IPlaceholderFolderLayout placeHolderLeft= layout.createPlaceholderFolder("left", IPageLayout.LEFT, (float)0.25, IPageLayout.ID_EDITOR_AREA); //$NON-NLS-1$
  		placeHolderLeft.addPlaceholder(JavaScriptUI.ID_TYPE_HIERARCHY);
  		placeHolderLeft.addPlaceholder(IPageLayout.ID_OUTLINE);
  		placeHolderLeft.addPlaceholder(JavaScriptUI.ID_PACKAGES);
  		placeHolderLeft.addPlaceholder(IPageLayout.ID_RES_NAV);
  
  
  		IPlaceholderFolderLayout placeHolderBottom= layout.createPlaceholderFolder("bottom", IPageLayout.BOTTOM, (float)0.75, IPageLayout.ID_EDITOR_AREA); //$NON-NLS-1$
  		placeHolderBottom.addPlaceholder(IPageLayout.ID_PROBLEM_VIEW);
  		placeHolderBottom.addPlaceholder(NewSearchUI.SEARCH_VIEW_ID);
  		placeHolderBottom.addPlaceholder(IConsoleConstants.ID_CONSOLE_VIEW);
  		placeHolderBottom.addPlaceholder(IPageLayout.ID_BOOKMARKS);
  		placeHolderBottom.addPlaceholder(JavaScriptUI.ID_SOURCE_VIEW);
  		placeHolderBottom.addPlaceholder(JavaScriptUI.ID_JAVADOC_VIEW);
  		placeHolderBottom.addPlaceholder(IProgressConstants.PROGRESS_VIEW_ID);
  	}
  
  	private boolean shouldShowProjectsView() {
  		return fgJavaElementFromAction == null || fgJavaElementFromAction.getElementType() == IJavaScriptElement.JAVASCRIPT_MODEL;
  	}
  
  	private boolean shouldShowPackagesView() {
  		if (fgJavaElementFromAction == null)
  			return true;
  		int type= fgJavaElementFromAction.getElementType();
  		return type == IJavaScriptElement.JAVASCRIPT_MODEL || type == IJavaScriptElement.JAVASCRIPT_PROJECT || type == IJavaScriptElement.PACKAGE_FRAGMENT_ROOT;
  	}
  
  	private boolean stackBrowsingViewsVertically() {
  		return PreferenceConstants.getPreferenceStore().getBoolean(PreferenceConstants.BROWSING_STACK_VERTICALLY);
  	}
  
  	/*
  	 * XXX: This is a workaround for: http://dev.eclipse.org/bugs/show_bug.cgi?id=13070
  	 */
  	static void setInputFromAction(IAdaptable input) {
  		if (input instanceof IJavaScriptElement)
  			fgJavaElementFromAction= (IJavaScriptElement)input;
  		else
  			fgJavaElementFromAction= null;
  	}
  }
  