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/*******************************************************************************
* 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
* Chris Gross chris.gross@us.ibm.com Bug 107443
*******************************************************************************/
package org.eclipse.ui;
/**
* An <code>IPlaceholderFolderLayout</code> is used to define the initial
* view placeholders within a folder.
* The folder itself is contained within an <code>IPageLayout</code>.
* <p>
* This interface is not intended to be implemented by clients.
* </p>
*
* @see IPageLayout#createPlaceholderFolder
* @since 2.0
* @noimplement This interface is not intended to be implemented by clients.
*/
public interface IPlaceholderFolderLayout {
/**
* Adds a view placeholder to this folder.
* A view placeholder is used to define the position of a view before the view
* appears. Initially, it is invisible; however, if the user ever opens a view
* whose compound id matches the placeholder, the view will appear at the same
* location as the placeholder.
* See the {@link IPageLayout} type documentation for more details about compound ids.
* If the placeholder contains wildcards, it remains in the layout, otherwise
* it is replaced by the view.
* If the primary id of the placeholder has no wildcards, it must refer to a view
* contributed to the workbench's view extension point
* (named <code>"org.eclipse.ui.views"</code>).
*
* @param viewId the compound view id (wildcards allowed)
*/
public void addPlaceholder(String viewId);
/**
* Returns the property with the given id or <code>null</code>. Folder
* properties are an extensible mechanism for perspective authors to
* customize the appearance of view stacks. The list of customizable
* properties is determined by the presentation factory.
*
* @param id
* Must not be <code>null</code>.
* @return property value, or <code>null</code> if the property is not
* set.
* @since 3.3
*/
public String getProperty(String id);
/**
* Sets the given property to the given value. Folder properties are an
* extensible mechanism for perspective authors to customize the appearance
* of view stacks. The list of customizable properties is determined by the
* presentation factory.
* <p>
* These folder properties are intended to be set during
* <code>IPerspectiveFactory#createInitialLayout</code>. Any subsequent
* changes to property values after this method completes will not fire
* change notifications and will not be reflected in the presentation.
* </p>
*
* @param id
* property id. Must not be <code>null</code>.
* @param value
* property value. <code>null</code> will clear the property.
* @since 3.3
*/
public void setProperty(String id, String value);
}
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