Package org.eclipse.ui.internal

Source Code of org.eclipse.ui.internal.ViewStackTrimToolBar

/*******************************************************************************
* Copyright (c) 2007 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.ui.internal;

import org.eclipse.jface.action.ContributionItem;
import org.eclipse.jface.action.IContributionItem;
import org.eclipse.jface.action.IMenuListener;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.action.MenuManager;
import org.eclipse.jface.action.ToolBarManager;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.swt.widgets.ToolBar;
import org.eclipse.swt.widgets.ToolItem;
import org.eclipse.ui.IViewReference;
import org.eclipse.ui.internal.layout.TrimToolBarBase;

/**
* @since 3.3
*
*/
public class ViewStackTrimToolBar extends TrimToolBarBase {
  private boolean restoreOnUnzoom = false;
 
  // The orientation of the fast view pane when showing a view
  private int paneOrientation;
 
  // The id of the part that was showing when we minimized
  private String selectedTabId;

  public ViewStackTrimToolBar(String id, int curSide, int paneOrientation, WorkbenchWindow wbw) {
    super(id, curSide, wbw);
   
    this.paneOrientation = paneOrientation;   
    dock(curSide);
  }
 
  /**
   * Put the stack back into the presentation
   */
  protected void restoreToPresentation() {
    Perspective persp = wbw.getActiveWorkbenchPage().getActivePerspective();
    //FastViewManager fvMgr = persp.getFastViewManager();
   
    LayoutPart part = persp.getPresentation().findPart(getId(), null);
    if (part instanceof ContainerPlaceholder) {
      ViewStack stack = (ViewStack) ((ContainerPlaceholder)part).getRealContainer();
      stack.setMinimized(false);
    }
    //fvMgr.restoreToPresentation(getId());
  }

  public void initToolBarManager(final ToolBarManager mgr) {
    // Set up the ToolBar with a restore button
    IContributionItem restoreContrib = new ContributionItem() {
      public void fill(ToolBar parent, int index) {
            ToolItem restoreItem = new  ToolItem(mgr.getControl(), SWT.PUSH, index);       
            Image tbImage = WorkbenchImages.getImage(IWorkbenchGraphicConstants.IMG_ETOOL_RESTORE_TRIMPART);
            restoreItem.setImage(tbImage);      
            String menuTip = WorkbenchMessages.StandardSystemToolbar_Restore;
            restoreItem.setToolTipText(menuTip);
            restoreItem.addSelectionListener(new SelectionListener() {
          public void widgetDefaultSelected(SelectionEvent e) {
            restoreToPresentation();
          }
          public void widgetSelected(SelectionEvent e) {
            restoreToPresentation();
          }
            });
      }
    };
    mgr.add(restoreContrib);
   
    ShowFastViewContribution sfvc = new ShowFastViewContribution(wbw, getId());
    mgr.add(sfvc);
   
    // Add context menu items
    mgr.setContextMenuManager(new MenuManager());
    MenuManager menuMgr = mgr.getContextMenuManager();
   
    final IContributionItem closeContrib = new ContributionItem() {
      public void fill(Menu parent, int index) {
            MenuItem closeItem = new MenuItem(parent, SWT.NONE, index++);
            closeItem.setText(WorkbenchMessages.WorkbenchWindow_close);
            closeItem.addSelectionListener(new SelectionAdapter() {
                public void widgetSelected(SelectionEvent e) {
                  IViewReference selectedView = null;
                  if (contextToolItem != null) {
                    selectedView = (IViewReference) contextToolItem.getData(ShowFastViewContribution.FAST_VIEW);
                  }
                 
                    if (selectedView != null) {
                        WorkbenchPage page = wbw.getActiveWorkbenchPage();
                        if (page != null) {
                            page.hideView(selectedView);
                        }
                    }
                }
            });
      }
    };
   
    // We have to manage the visiblity this way...?
    menuMgr.addMenuListener(new IMenuListener() {
      public void menuAboutToShow(IMenuManager manager) {
              IViewReference selectedView = null;
              if (contextToolItem != null) {
                selectedView = (IViewReference) contextToolItem.getData(ShowFastViewContribution.FAST_VIEW);
              }
             
              // Only show the 'close' item if we've clicked on a view
            Perspective persp = wbw.getActiveWorkbenchPage().getActivePerspective();
              closeContrib.setVisible(selectedView != null && persp.isCloseable(selectedView));
              manager.update(true);
      }
    });
   
    menuMgr.add(closeContrib);
  }

  /* (non-Javadoc)
   * @see org.eclipse.ui.internal.layout.TrimToolBarBase#hookControl(org.eclipse.swt.widgets.ToolBar)
   */
  public void hookControl(ToolBarManager mgr) {
    // Hook a drop Listener to the control
    // NOTE: the drop target is self-managing...it
    // both hooks the new target and removes it on dispose
    new FastViewDnDHandler(id, mgr, wbw);
  }
 
  /**
   * Sets whether or not the stack gets restored on an unzoom
   * operation.
   *
   * @param restoreOnUnzoom
   */
  public void setRestoreOnUnzoom(boolean restoreOnUnzoom) {
    this.restoreOnUnzoom = restoreOnUnzoom;
  }
 
  public boolean restoreOnUnzoom() {
    return restoreOnUnzoom;
  }

  /**
   * @param ref
   * @param selected
   */
  public void setIconSelection(IViewReference ref, boolean selected) {
    ToolItem item = ShowFastViewContribution.getItem(tbMgr.getControl(), ref);
    if (item != null) {
      item.setSelection(selected);
     
      if (selected) {
        selectedTabId = ref.getId();
       
        // Create a 'compound' id if this is a multi-instance part
        if (ref.getSecondaryId() != null)
          selectedTabId = selectedTabId + ':' + ref.getSecondaryId();
      }
    }
  }

  /**
   * @return Returns the paneOrientation.
   */
  public int getPaneOrientation() {
    return paneOrientation;
  }

  /**
   * Cache the tba that was on top when we were minimized
   * @param selectedTab The id of the PartPane for the tab
   */
  public void setSelectedTabId(String id) {
    selectedTabId = id;
  }
 
  /**
   * @return The id of the layout part representing the 'top' tab
   */
  public String getSelectedTabId() {
    return selectedTabId;
  }

  /**
   * @param newOrientation The new orientation for the fact view display
   * @param wbw The currently active WorkbenchWindow
   */
  public void setOrientation(int newOrientation, WorkbenchWindow wbw) {
    if (newOrientation == paneOrientation)
      return;
   
    paneOrientation = newOrientation;
   
    // If there's a fast view showing, toggle it to pick up the change
    if (wbw.getActivePage() instanceof WorkbenchPage) {
      WorkbenchPage wbp = (WorkbenchPage) wbw.getActivePage();
      Perspective persp = wbp.getActivePerspective();
      if (persp != null) {
        IViewReference curRef = persp.getActiveFastView();
        if (curRef != null) {
          persp.setActiveFastView(null);
          persp.setActiveFastView(curRef);
        }
      }
     
    }
   
  }
}
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