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Diffstat (limited to 'bundles/org.eclipse.wst.xml.ui/src/org/eclipse/wst/xml/ui/internal/dnd/DragNodeCommand.java')
-rw-r--r--bundles/org.eclipse.wst.xml.ui/src/org/eclipse/wst/xml/ui/internal/dnd/DragNodeCommand.java287
1 files changed, 0 insertions, 287 deletions
diff --git a/bundles/org.eclipse.wst.xml.ui/src/org/eclipse/wst/xml/ui/internal/dnd/DragNodeCommand.java b/bundles/org.eclipse.wst.xml.ui/src/org/eclipse/wst/xml/ui/internal/dnd/DragNodeCommand.java
deleted file mode 100644
index 3f5c66fab0..0000000000
--- a/bundles/org.eclipse.wst.xml.ui/src/org/eclipse/wst/xml/ui/internal/dnd/DragNodeCommand.java
+++ /dev/null
@@ -1,287 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2001, 2007 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
- * Jens Lukowski/Innoopract - initial renaming/restructuring
- *
- *******************************************************************************/
-package org.eclipse.wst.xml.ui.internal.dnd;
-
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Hashtable;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Vector;
-
-import org.eclipse.jface.viewers.StructuredSelection;
-import org.eclipse.jface.viewers.TreeViewer;
-import org.eclipse.swt.dnd.DND;
-import org.eclipse.wst.common.ui.internal.dnd.DefaultDragAndDropCommand;
-import org.eclipse.wst.sse.core.internal.provisional.IStructuredModel;
-import org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode;
-import org.eclipse.wst.xml.ui.internal.Logger;
-import org.eclipse.wst.xml.ui.internal.XMLUIMessages;
-import org.w3c.dom.Attr;
-import org.w3c.dom.DOMException;
-import org.w3c.dom.Element;
-import org.w3c.dom.Node;
-
-public class DragNodeCommand extends DefaultDragAndDropCommand {
- private List fSelections;
- private TreeViewer fTreeViewer;
-
- public DragNodeCommand(Object target, float location, int operations, int operation, Collection sources, TreeViewer treeViewer) {
- super(target, location, operations, operation, sources);
- fTreeViewer = treeViewer;
- fSelections = new ArrayList();
- }
-
- private void beginModelChange(Node node, boolean batchUpdate) {
- IStructuredModel structuredModel = getStructuredModel(node);
- if (structuredModel != null) {
- String undoDesc = new String();
- if (getOperation() == DND.DROP_MOVE) {
- undoDesc = XMLUIMessages.DragNodeCommand_0;
- }
- else if (getOperation() == DND.DROP_COPY) {
- undoDesc = XMLUIMessages.DragNodeCommand_1;
- }
-
- structuredModel.beginRecording(this, undoDesc);
- if (batchUpdate) {
- // structuredModel.aboutToChangeModel();
- }
- }
- }
-
- public boolean canExecute() {
- return executeHelper(true);
- }
-
- private boolean doModify(Node source, Node parentNode, Node refChild, boolean testOnly) {
- boolean result = false;
- if (source.getNodeType() == Node.ATTRIBUTE_NODE) {
- Attr sourceAttribute = (Attr) source;
- Element sourceAttributeOwnerElement = sourceAttribute.getOwnerElement();
- if ((parentNode.getNodeType() == Node.ELEMENT_NODE) && (sourceAttributeOwnerElement != parentNode)) {
- result = true;
- if (!testOnly) {
- try {
- if (getOperation() == DND.DROP_MOVE) {
- Element targetElement = (Element) parentNode;
- sourceAttributeOwnerElement.removeAttributeNode(sourceAttribute);
- targetElement.getAttributes().setNamedItem(sourceAttribute);
- fSelections.add(sourceAttribute);
- }
- else if (getOperation() == DND.DROP_COPY) {
- Attr cloneAttribute = (Attr) sourceAttribute.cloneNode(false);
- Element targetElement = (Element) parentNode;
- targetElement.getAttributes().setNamedItem(cloneAttribute);
- fSelections.add(cloneAttribute);
- }
- }
- catch (Exception e) {
- Logger.log(Logger.WARNING_DEBUG, e.getMessage(), e);
- }
- }
- }
- }
- else {
- if (((parentNode.getNodeType() == Node.ELEMENT_NODE) || (parentNode.getNodeType() == Node.DOCUMENT_NODE)) && !(refChild instanceof Attr)) {
- result = true;
-
- if (!testOnly) {
- try {
- if (isAncestor(source, parentNode)) {
- // System.out.println("can not perform this drag drop
- // operation.... todo... pop up dialog");
- }
- else {
- // defect 221055 this test is required or else the
- // node will
- // be removed from the tree and the insert will fail
- if (source != refChild) {
- if (getOperation() == DND.DROP_MOVE) {
- Node oldParent = source.getParentNode();
- Node oldSibling = source.getNextSibling();
- oldParent.removeChild(source);
- try {
- parentNode.insertBefore(source, refChild);
- } catch (DOMException e) {
- // bug151692 - if unable to move node to new location, reinsert back to old location
- oldParent.insertBefore(source, oldSibling);
- }
- fSelections.add(source);
- }
- else if (getOperation() == DND.DROP_COPY) {
- Node nodeClone = source.cloneNode(true);
- parentNode.insertBefore(nodeClone, refChild);
- fSelections.add(nodeClone);
- }
- }
- }
- }
- catch (Exception e) {
- Logger.log(Logger.WARNING_DEBUG, e.getMessage(), e);
- }
- }
- }
- }
- return result;
- }
-
- private void endModelChange(Node node, boolean batchUpdate) {
- IStructuredModel structuredModel = getStructuredModel(node);
- if (structuredModel != null) {
- structuredModel.endRecording(this);
- if (batchUpdate) {
- // structuredModel.changedModel();
- }
- }
- }
-
- public void execute() {
- executeHelper(false);
-
- // Make our selection if the treeViewer != null
- if (fTreeViewer != null) {
- StructuredSelection structuredSelection = new StructuredSelection(fSelections);
- fTreeViewer.setSelection(structuredSelection);
- }
- }
-
- private boolean executeHelper(boolean testOnly) {
- boolean result = true;
- if (target instanceof Node) {
- Node targetNode = (Node) target;
- Node parentNode = getParentForDropPosition(targetNode);
- Node refChild = getRefChild(targetNode);
-
- Vector sourcesList = new Vector();
- sourcesList.addAll(sources);
-
- removeMemberDescendants(sourcesList);
- boolean performBatchUpdate = sourcesList.size() > 5;
-
- if (!testOnly) {
- beginModelChange(targetNode, performBatchUpdate);
- }
- for (Iterator i = sourcesList.iterator(); i.hasNext();) {
- Object source = i.next();
- if (source instanceof Node) {
- if (!((refChild == null) && (targetNode instanceof Attr))) {
- result = doModify((Node) source, parentNode, refChild, testOnly);
- }
- else {
- result = false;
- }
- if (!result) {
- break;
- }
- }
- }
- if (!testOnly) {
- endModelChange(targetNode, performBatchUpdate);
- }
- }
- else {
- result = false;
- }
- return result;
- }
-
-
- public int getFeedback() {
- int result = DND.FEEDBACK_SELECT;
- if (location > 0.75) {
- result = DND.FEEDBACK_INSERT_AFTER;
- }
- else if (location < 0.25) {
- result = DND.FEEDBACK_INSERT_BEFORE;
- }
- return result;
- }
-
- private Node getParentForDropPosition(Node node) {
- Node result = null;
-
- int feedback = getFeedback();
- if (feedback == DND.FEEDBACK_SELECT) {
- result = node;
- }
- else {
- result = getParentOrOwner(node);
- }
- return result;
- }
-
-
- private Node getParentOrOwner(Node node) {
- return (node.getNodeType() == Node.ATTRIBUTE_NODE) ? ((Attr) node).getOwnerElement() : node.getParentNode();
- }
-
-
- private Node getRefChild(Node node) {
- Node result = null;
-
- int feedback = getFeedback();
-
- if (feedback == DND.FEEDBACK_INSERT_BEFORE) {
- result = node;
- }
- else if (feedback == DND.FEEDBACK_INSERT_AFTER) {
- result = node.getNextSibling();
- }
- return result;
- }
-
- private IStructuredModel getStructuredModel(Node node) {
- IStructuredModel result = null;
- if (node instanceof IDOMNode) {
- result = ((IDOMNode) node).getModel();
- }
- return result;
- }
-
- // returns true if a is an ancestore of b
- //
- private boolean isAncestor(Node a, Node b) {
- boolean result = false;
- for (Node parent = b; parent != null; parent = parent.getParentNode()) {
- if (parent == a) {
- result = true;
- break;
- }
- }
- return result;
- }
-
-
- /**
- * This method removes members of the list that have ancestors that are
- * also members of the list.
- */
- private void removeMemberDescendants(List list) {
- Hashtable table = new Hashtable();
- for (Iterator i = list.iterator(); i.hasNext();) {
- Object node = i.next();
- table.put(node, node);
- }
-
- for (int i = list.size() - 1; i >= 0; i--) {
- Node node = (Node) list.get(i);
- for (Node parent = getParentOrOwner(node); parent != null; parent = getParentOrOwner(parent)) {
- if (table.get(parent) != null) {
- list.remove(i);
- break;
- }
- }
- }
- }
-}

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