/*******************************************************************************
* Copyright (c) 2006 Sybase, Inc. 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:
* Sybase, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.pagedesigner.parts;
import org.eclipse.draw2d.IFigure;
import org.eclipse.draw2d.geometry.Point;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.SharedCursors;
import org.eclipse.jst.pagedesigner.css2.ICSSStyle;
import org.eclipse.jst.pagedesigner.css2.layout.CSSTextFigure;
import org.eclipse.jst.pagedesigner.css2.layout.ICSSFigure;
import org.eclipse.jst.pagedesigner.css2.property.ICSSPropertyID;
import org.eclipse.jst.pagedesigner.css2.provider.ICSSTextProvider;
import org.eclipse.jst.pagedesigner.css2.style.DefaultStyle;
import org.eclipse.jst.pagedesigner.editpolicies.LinkEditPolicy;
import org.eclipse.jst.pagedesigner.range.RangeUtil;
import org.eclipse.jst.pagedesigner.utils.HTMLUtil;
import org.eclipse.jst.pagedesigner.viewer.DesignRange;
import org.eclipse.jst.pagedesigner.viewer.IHTMLGraphicalViewer;
import org.eclipse.swt.graphics.Cursor;
import org.eclipse.wst.sse.core.internal.provisional.INodeNotifier;
import org.w3c.dom.Node;
import org.w3c.dom.Text;
/**
* @author mengbo
*/
public class TextEditPart extends SubNodeEditPart implements ICSSTextProvider {
private String _cachedData;
private Text _textNode;
private Text _textNodeForFigure;
/*
* (non-Javadoc)
*
* @see org.eclipse.gef.EditPart#setModel(java.lang.Object)
*/
public void setModel(Object model) {
super.setModel(model);
_textNode = (Text) model;
_cachedData = _textNode.getData();
_textNodeForFigure = getDestDocumentForDesign().createTextNode(
_cachedData);
}
protected IFigure createFigure() {
// XXX: currently creating of CSSTextFigure is distributed both here
// and FigureFactory. We may want to unify them later.
return new CSSTextFigure(this);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.gef.editparts.AbstractEditPart#createEditPolicies()
*/
protected void createEditPolicies() {
super.createEditPolicies();
this.installEditPolicy("link editpolicy", new LinkEditPolicy()); //$NON-NLS-1$
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jst.pagedesigner.parts.SubNodeEditPart#getNodeForFigure()
*/
public Node getNodeForFigure() {
return _textNodeForFigure;
}
/*
* (non-Javadoc)
*
* @see com.ibm.sse.model.INodeAdapter#notifyChanged(com.ibm.sse.model.INodeNotifier,
* int, java.lang.Object, java.lang.Object, java.lang.Object, int)
*/
public void notifyChanged(INodeNotifier notifier, int eventType,
Object changedFeature, Object oldValue, Object newValue, int pos) {
_cachedData = _textNode.getData();
_textNodeForFigure.setData(_cachedData);
if (eventType == INodeNotifier.CHANGE) {
getFigure().revalidate();
} else {
// XXX: been removed? parent EditPart should have handled it.
}
}
/**
* @return the associated css style for this text node
*/
public ICSSStyle getCSSStyle() {
IFigure figure1 = this.getFigure();
if (figure1 instanceof ICSSFigure) {
ICSSStyle style = ((ICSSFigure) figure1).getCSSStyle();
if (style != null) {
return style;
}
}
return DefaultStyle.getInstance();
}
/**
* As when text are displayed in HTML, they are "normalized". For example,
* leading whitespace may be removed dure to previous node as trailing
* whitespace. Entity reference may have be resolved. Sequence whitespace
* been merged.
*
* It is also possible that the text node is in "PRE" mode, in that case the
* above things are not done.
*
* This method return the really value that is going to be presented to
* user. EditPartPosition's offset is referencing this value.
*
* @return the text data
* @see org.eclipse.jst.pagedesigner.viewer.DesignPosition
*/
public String getTextData() {
ICSSStyle style = getCSSStyle();
String data = _cachedData;
if (style.getStyleProperty(ICSSPropertyID.ATTR_WHITESPACE) != ICSSPropertyID.VAL_PRE) {
return HTMLUtil.compactWhitespaces(_textNode, data);
}
return data;
}
/**
* check what part of this text node is in the range selection.
*
* @return text node ranges
*/
public int[] getSelectedRange() {
IHTMLGraphicalViewer viewer = (IHTMLGraphicalViewer) this.getViewer();
if (viewer == null || !viewer.isInRangeMode()) {
return null;
}
DesignRange range = viewer.getRangeSelection();
if (range == null || !range.isValid()) {
return null;
}
if (!RangeUtil.intersect(range, this)) {
return null;
}
// ok, we intersect with the range.
range = RangeUtil.normalize(range);
EditPart startContainer = range.getStartPosition().getContainerPart();
EditPart endContainer = range.getEndPosition().getContainerPart();
int[] ret = new int[2];
if (startContainer != this) {
ret[0] = 0;
} else {
ret[0] = range.getStartPosition().getOffset();
}
if (endContainer != this) {
ret[1] = this.getTextData().length();
} else {
{
ret[1] = range.getEndPosition().getOffset();
}
}
return ret;
}
public boolean isSelectable() {
// controls, amongst other things, whether or not a standard
// hit test in SelectionTool for mouse over will find this edit part
return true;
}
public Cursor getCursor(Point mouseLocation) {
return SharedCursors.IBEAM;
}
}