+++ /dev/null
-/*******************************************************************************
- * Copyright (c) 2000, 2003 IBM Corporation 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 API and implementation
- *******************************************************************************/
-
-package net.sourceforge.phpeclipse.phpeditor;
-
-
-import java.util.ArrayList;
-import java.util.Iterator;
-import java.util.List;
-
-import net.sourceforge.phpdt.core.BufferChangedEvent;
-import net.sourceforge.phpdt.core.IBuffer;
-import net.sourceforge.phpdt.core.IBufferChangedListener;
-import net.sourceforge.phpdt.core.IOpenable;
-import net.sourceforge.phpdt.core.JavaModelException;
-
-import org.eclipse.core.resources.IResource;
-import org.eclipse.core.runtime.CoreException;
-import org.eclipse.core.runtime.IProgressMonitor;
-import org.eclipse.core.runtime.IStatus;
-import org.eclipse.jface.text.Assert;
-import org.eclipse.jface.text.BadLocationException;
-import org.eclipse.jface.text.DocumentEvent;
-import org.eclipse.jface.text.IDocument;
-import org.eclipse.jface.text.IDocumentListener;
-import org.eclipse.jface.text.ILineTracker;
-import org.eclipse.jface.text.IRegion;
-import org.eclipse.swt.widgets.Display;
-
-
-
-/**
- * Adapts <code>IDocument</code> to <code>IBuffer</code>. Uses the
- * same algorithm as the text widget to determine the buffer's line delimiter.
- * All text inserted into the buffer is converted to this line delimiter.
- * This class is <code>public</code> for test purposes only.
- */
-public class DocumentAdapter implements IBuffer, IDocumentListener {
-
- /**
- * Internal implementation of a NULL instanceof IBuffer.
- */
- static private class NullBuffer implements IBuffer {
-
- public void addBufferChangedListener(IBufferChangedListener listener) {}
-
- public void append(char[] text) {}
-
- public void append(String text) {}
-
- public void close() {}
-
- public char getChar(int position) {
- return 0;
- }
-
- public char[] getCharacters() {
- return null;
- }
-
- public String getContents() {
- return null;
- }
-
- public int getLength() {
- return 0;
- }
-
- public IOpenable getOwner() {
- return null;
- }
-
- public String getText(int offset, int length) {
- return null;
- }
-
- public IResource getUnderlyingResource() {
- return null;
- }
-
- public boolean hasUnsavedChanges() {
- return false;
- }
-
- public boolean isClosed() {
- return false;
- }
-
- public boolean isReadOnly() {
- return true;
- }
-
- public void removeBufferChangedListener(IBufferChangedListener listener) {}
-
- public void replace(int position, int length, char[] text) {}
-
- public void replace(int position, int length, String text) {}
-
- public void save(IProgressMonitor progress, boolean force) throws JavaModelException {}
-
- public void setContents(char[] contents) {}
-
- public void setContents(String contents) {}
- };
-
-
- /** NULL implementing <code>IBuffer</code> */
- public final static IBuffer NULL= new NullBuffer();
-
-
- /**
- * Executes a document set content call in the ui thread.
- */
- protected class DocumentSetCommand implements Runnable {
-
- private String fContents;
-
- public void run() {
- fDocument.set(fContents);
- }
-
- public void set(String contents) {
- fContents= contents;
- Display.getDefault().syncExec(this);
- }
- };
-
- /**
- * Executes a document replace call in the ui thread.
- */
- protected class DocumentReplaceCommand implements Runnable {
-
- private int fOffset;
- private int fLength;
- private String fText;
-
- public void run() {
- try {
- fDocument.replace(fOffset, fLength, fText);
- } catch (BadLocationException x) {
- // ignore
- }
- }
-
- public void replace(int offset, int length, String text) {
- fOffset= offset;
- fLength= length;
- fText= text;
- Display.getDefault().syncExec(this);
- }
- };
-
- private IOpenable fOwner;
- private IDocument fDocument;
- private DocumentSetCommand fSetCmd= new DocumentSetCommand();
- private DocumentReplaceCommand fReplaceCmd= new DocumentReplaceCommand();
-
- private Object fProviderKey;
- private PHPDocumentProvider fProvider;
- private String fLineDelimiter;
- private ILineTracker fLineTracker;
-
- private List fBufferListeners= new ArrayList(3);
-
- private IStatus fStatus;
-
- /**
- * This method is <code>public</code> for test purposes only.
- */
- public DocumentAdapter(IOpenable owner, IDocument document, ILineTracker lineTracker, PHPDocumentProvider provider, Object providerKey) {
-
- Assert.isNotNull(document);
- Assert.isNotNull(lineTracker);
-
- fOwner= owner;
- fDocument= document;
- fLineTracker= lineTracker;
- fProvider= provider;
- fProviderKey= providerKey;
-
- fDocument.addPrenotifiedDocumentListener(this);
- }
-
- /**
- * Sets the status of this document adapter.
- */
- public void setStatus(IStatus status) {
- fStatus= status;
- }
-
- /**
- * Returns the status of this document adapter.
- */
- public IStatus getStatus() {
- return fStatus;
- }
-
- /**
- * Returns the adapted document.
- *
- * @return the adapted document
- */
- public IDocument getDocument() {
- return fDocument;
- }
-
- /**
- * Returns the line delimiter of this buffer. As a document has a set of
- * valid line delimiters, this set must be reduced to size 1.
- */
- protected String getLineDelimiter() {
-
- if (fLineDelimiter == null) {
-
- try {
- fLineDelimiter= fDocument.getLineDelimiter(0);
- } catch (BadLocationException x) {
- }
-
- if (fLineDelimiter == null) {
- /*
- * Follow up fix for: 1GF5UU0: ITPJUI:WIN2000 - "Organize Imports" in java editor inserts lines in wrong format
- * The line delimiter must always be a legal document line delimiter.
- */
- String sysLineDelimiter= System.getProperty("line.separator"); //$NON-NLS-1$
- String[] delimiters= fDocument.getLegalLineDelimiters();
- Assert.isTrue(delimiters.length > 0);
- for (int i= 0; i < delimiters.length; i++) {
- if (delimiters[i].equals(sysLineDelimiter)) {
- fLineDelimiter= sysLineDelimiter;
- break;
- }
- }
-
- if (fLineDelimiter == null) {
- // system line delimiter is not a legal document line delimiter
- fLineDelimiter= delimiters[0];
- }
- }
- }
-
- return fLineDelimiter;
- }
-
- /**
- * Converts the given string to the line delimiter of this buffer.
- * This method is <code>public</code> for test purposes only.
- */
- public String normalize(String text) {
- fLineTracker.set(text);
-
- int lines= fLineTracker.getNumberOfLines();
- if (lines <= 1)
- return text;
-
- StringBuffer buffer= new StringBuffer(text);
-
- try {
- IRegion previous= fLineTracker.getLineInformation(0);
- for (int i= 1; i < lines; i++) {
- int lastLineEnd= previous.getOffset() + previous.getLength();
- int lineStart= fLineTracker.getLineInformation(i).getOffset();
- fLineTracker.replace(lastLineEnd, lineStart - lastLineEnd, getLineDelimiter());
- buffer.replace(lastLineEnd, lineStart, getLineDelimiter());
- previous= fLineTracker.getLineInformation(i);
- }
-
- // last line
- String delimiter= fLineTracker.getLineDelimiter(lines -1);
- if (delimiter != null && delimiter.length() > 0)
- buffer.replace(previous.getOffset() + previous.getLength(), buffer.length(), getLineDelimiter());
-
- return buffer.toString();
- } catch (BadLocationException x) {
- }
-
- return text;
- }
-
- /*
- * @see IBuffer#addBufferChangedListener(IBufferChangedListener)
- */
- public void addBufferChangedListener(IBufferChangedListener listener) {
- Assert.isNotNull(listener);
- if (!fBufferListeners.contains(listener))
- fBufferListeners.add(listener);
- }
-
- /*
- * @see IBuffer#removeBufferChangedListener(IBufferChangedListener)
- */
- public void removeBufferChangedListener(IBufferChangedListener listener) {
- Assert.isNotNull(listener);
- fBufferListeners.remove(listener);
- }
-
- /*
- * @see IBuffer#append(char[])
- */
- public void append(char[] text) {
- append(new String(text));
- }
-
- /*
- * @see IBuffer#append(String)
- */
- public void append(String text) {
- fReplaceCmd.replace(fDocument.getLength(), 0, normalize(text));
- }
-
- /*
- * @see IBuffer#close()
- */
- public void close() {
-
- if (isClosed())
- return;
-
- IDocument d= fDocument;
- fDocument= null;
- d.removePrenotifiedDocumentListener(this);
-
- fireBufferChanged(new BufferChangedEvent(this, 0, 0, null));
- fBufferListeners.clear();
- }
-
- /*
- * @see IBuffer#getChar(int)
- */
- public char getChar(int position) {
- try {
- return fDocument.getChar(position);
- } catch (BadLocationException x) {
- throw new ArrayIndexOutOfBoundsException();
- }
- }
-
- /*
- * @see IBuffer#getCharacters()
- */
- public char[] getCharacters() {
- String content= getContents();
- return content == null ? null : content.toCharArray();
- }
-
- /*
- * @see IBuffer#getContents()
- */
- public String getContents() {
- return fDocument.get();
- }
-
- /*
- * @see IBuffer#getLength()
- */
- public int getLength() {
- return fDocument.getLength();
- }
-
- /*
- * @see IBuffer#getOwner()
- */
- public IOpenable getOwner() {
- return (IOpenable) fOwner;
- }
-
- /*
- * @see IBuffer#getText(int, int)
- */
- public String getText(int offset, int length) {
- try {
- return fDocument.get(offset, length);
- } catch (BadLocationException x) {
- throw new ArrayIndexOutOfBoundsException();
- }
- }
-
- /*
- * @see IBuffer#getUnderlyingResource()
- */
- public IResource getUnderlyingResource() {
- return fProvider != null ? fProvider.getUnderlyingResource(fProviderKey) : null;
- }
-
- /*
- * @see IBuffer#hasUnsavedChanges()
- */
- public boolean hasUnsavedChanges() {
- return fProvider != null ? fProvider.canSaveDocument(fProviderKey) : false;
- }
-
- /*
- * @see IBuffer#isClosed()
- */
- public boolean isClosed() {
- return fDocument == null;
- }
-
- /*
- * @see IBuffer#isReadOnly()
- */
- public boolean isReadOnly() {
- IResource resource= getUnderlyingResource();
- return resource == null ? true : resource.isReadOnly();
- }
-
- /*
- * @see IBuffer#replace(int, int, char[])
- */
- public void replace(int position, int length, char[] text) {
- replace(position, length, new String(text));
- }
-
- /*
- * @see IBuffer#replace(int, int, String)
- */
- public void replace(int position, int length, String text) {
- fReplaceCmd.replace(position, length, normalize(text));
- }
-
- /*
- * @see IBuffer#save(IProgressMonitor, boolean)
- */
- public void save(IProgressMonitor progress, boolean force) throws JavaModelException {
- if (fProvider != null) {
- try {
- fProvider.saveDocumentContent(progress, fProviderKey, fDocument, force);
- } catch (CoreException e) {
- throw new JavaModelException(e);
- }
- }
- }
-
- /*
- * @see IBuffer#setContents(char[])
- */
- public void setContents(char[] contents) {
- setContents(new String(contents));
- }
-
- /*
- * @see IBuffer#setContents(String)
- */
- public void setContents(String contents) {
- int oldLength= fDocument.getLength();
-
- if (contents == null) {
-
- if (oldLength != 0)
- fSetCmd.set(""); //$NON-NLS-1$
-
- } else {
-
- // set only if different
- String newContents= normalize(contents);
- int newLength= newContents.length();
-
- if (oldLength != newLength || !newContents.equals(fDocument.get()))
- fSetCmd.set(newContents);
- }
- }
-
- /*
- * @see IDocumentListener#documentAboutToBeChanged(DocumentEvent)
- */
- public void documentAboutToBeChanged(DocumentEvent event) {
- // there is nothing to do here
- }
-
- /*
- * @see IDocumentListener#documentChanged(DocumentEvent)
- */
- public void documentChanged(DocumentEvent event) {
- fireBufferChanged(new BufferChangedEvent(this, event.getOffset(), event.getLength(), event.getText()));
- }
-
- private void fireBufferChanged(BufferChangedEvent event) {
- if (fBufferListeners != null && fBufferListeners.size() > 0) {
- Iterator e= new ArrayList(fBufferListeners).iterator();
- while (e.hasNext())
- ((IBufferChangedListener) e.next()).bufferChanged(event);
- }
- }
-}
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