X-Git-Url: http://secure.phpeclipse.com diff --git a/archive/net.sourceforge.phpeclipse.css.ui/src/net/sourceforge/phpeclipse/css/ui/internal/CssDocumentProvider.java b/archive/net.sourceforge.phpeclipse.css.ui/src/net/sourceforge/phpeclipse/css/ui/internal/CssDocumentProvider.java new file mode 100644 index 0000000..d43169f --- /dev/null +++ b/archive/net.sourceforge.phpeclipse.css.ui/src/net/sourceforge/phpeclipse/css/ui/internal/CssDocumentProvider.java @@ -0,0 +1,115 @@ +/* + * Copyright (c) 2003-2004 Christopher Lenz 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: + * Christopher Lenz - initial API and implementation + * + * $Id: CssDocumentProvider.java,v 1.1 2004-09-02 18:11:49 jsurfer Exp $ + */ + +package net.sourceforge.phpeclipse.css.ui.internal; + +import net.sourceforge.phpeclipse.css.core.internal.model.StyleSheet; +import net.sourceforge.phpeclipse.css.core.model.IStyleSheet; + +import org.eclipse.core.runtime.CoreException; +import org.eclipse.jface.text.IDocument; +import org.eclipse.jface.text.IDocumentListener; +import org.eclipse.ui.editors.text.TextFileDocumentProvider; + +/** + * Document provider for CSS files. + * + * TODO This class currently doubles as a model manager which will need to be + * moved into core at some point, and would make this class pretty much + * useless + */ +public class CssDocumentProvider extends TextFileDocumentProvider { + + // Inner Classes ----------------------------------------------------------- + + private class StyleSheetInfo extends FileInfo { + private IStyleSheet styleSheet; + } + + // TestFileDocumentProvider Implementation --------------------------------- + + /* + * @see TextFileDocumentProvider#createEmptyFileInfo() + */ + protected FileInfo createEmptyFileInfo() { + return new StyleSheetInfo(); + } + + /* + * @see TextFileDocumentProvider#createFileInfo(Object) + */ + protected FileInfo createFileInfo(Object element) throws CoreException { + FileInfo fileInfo = super.createFileInfo(element); + if (!(fileInfo instanceof StyleSheetInfo)) { + return null; + } + + IDocument document = fileInfo.fTextFileBuffer.getDocument(); + IStyleSheet styleSheet = createStyleSheet(document); + if (styleSheet instanceof IDocumentListener) { + document.addDocumentListener((IDocumentListener) styleSheet); + } + StyleSheetInfo styleSheetInfo = (StyleSheetInfo) fileInfo; + styleSheetInfo.styleSheet = styleSheet; + + return styleSheetInfo; + } + + /* + * @see TextFileDocumentProvider#disposeFileInfo(Object, TextFileDocumentProvider.FileInfo) + */ + protected void disposeFileInfo(Object element, FileInfo info) { + if (info instanceof StyleSheetInfo) { + IDocument document = getDocument(element); + // TODO Check whether this is really necessary, as the document is + // always null here + if (document != null) { + IStyleSheet styleSheet = ((StyleSheetInfo) info).styleSheet; + if (styleSheet instanceof IDocumentListener) { + document.removeDocumentListener((IDocumentListener) + styleSheet); + } + } + } + super.disposeFileInfo(element, info); + } + + // Public Methods ---------------------------------------------------------- + + /** + * Creates the parsed style sheet object corresponding to the specified + * document. + * + * @param document the document to parse + * @return the parsed style sheet + */ + public IStyleSheet createStyleSheet(IDocument document) { + return new StyleSheet(document); + } + + /** + * Returns the style sheet associated with the specified element. + * + * @param element the element + * @return the style sheet associated with the element + */ + public IStyleSheet getStyleSheet(Object element) { + FileInfo info = getFileInfo(element); + if (info instanceof StyleSheetInfo) { + StyleSheetInfo styleSheetInfo = (StyleSheetInfo) info; + return styleSheetInfo.styleSheet; + } + return null; + } + +}