org.eclipse.ui.editors/src/org/eclipse/ui/internal/editors/text/JavaFileEditorInput.java

/**********************************************************************
Copyright (c) 2000, 2003 IBM Corp. and others.
All rights reserved. This program and the accompanying materials
are made available under the terms of the Common Public License v1.0
which accompanies this distribution, and is available at
http://www.eclipse.org/legal/cpl-v10.html

Contributors:
	IBM Corporation - Initial implementation
**********************************************************************/
package org.eclipse.ui.internal.editors.text;

import java.io.File;

import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.Platform;

import org.eclipse.jface.resource.ImageDescriptor;

import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IPersistableElement;
import org.eclipse.ui.editors.text.ILocationProvider;

/**
 * @since 3.0
 */
public class JavaFileEditorInput implements IEditorInput, ILocationProvider {

	private File fFile;

	public JavaFileEditorInput(File file) {
		super();
		fFile= file;
	}
	/*
	 * @see org.eclipse.ui.IEditorInput#exists()
	 */
	public boolean exists() {
		return fFile.exists();
	}

	/*
	 * @see org.eclipse.ui.IEditorInput#getImageDescriptor()
	 */
	public ImageDescriptor getImageDescriptor() {
		return null;
	}

	/*
	 * @see org.eclipse.ui.IEditorInput#getName()
	 */
	public String getName() {
		return fFile.getName();
	}

	/*
	 * @see org.eclipse.ui.IEditorInput#getPersistable()
	 */
	public IPersistableElement getPersistable() {
		return null;
	}

	/*
	 * @see org.eclipse.ui.IEditorInput#getToolTipText()
	 */
	public String getToolTipText() {
		return fFile.getAbsolutePath();
	}

	/*
	 * @see org.eclipse.core.runtime.IAdaptable#getAdapter(java.lang.Class)
	 */
	public Object getAdapter(Class adapter) {
		if (ILocationProvider.class.equals(adapter))
			return this;
		return Platform.getAdapterManager().getAdapter(this, adapter);
	}

	/*
	 * @see org.eclipse.ui.editors.text.ILocationProvider#getPath(java.lang.Object)
	 */
	public IPath getPath(Object element) {
		if (element instanceof JavaFileEditorInput) {
			JavaFileEditorInput input= (JavaFileEditorInput) element;
			return new Path(input.fFile.getAbsolutePath());
		}
		return null;
	}
	
	/*
	 * @see java.lang.Object#equals(java.lang.Object)
	 */
	public boolean equals(Object o) {
		if (o == this)
			return true;
		
		if (o instanceof JavaFileEditorInput) {
			JavaFileEditorInput input = (JavaFileEditorInput) o;
			return fFile.equals(input.fFile);		
		}
		
		return false;
	}
	
	/*
	 * @see java.lang.Object#hashCode()
	 */
	public int hashCode() {
		return fFile.hashCode();
	}
}