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path: root/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/gle2/OutlineDropListener.java
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Diffstat (limited to 'eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/gle2/OutlineDropListener.java')
-rw-r--r--eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/gle2/OutlineDropListener.java217
1 files changed, 0 insertions, 217 deletions
diff --git a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/gle2/OutlineDropListener.java b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/gle2/OutlineDropListener.java
deleted file mode 100644
index f4a826fa2..000000000
--- a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/gle2/OutlineDropListener.java
+++ /dev/null
@@ -1,217 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Eclipse Public License, Version 1.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.eclipse.org/org/documents/epl-v10.php
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.android.ide.eclipse.adt.internal.editors.layout.gle2;
-
-import com.android.ide.common.api.INode;
-import com.android.ide.common.api.InsertType;
-import com.android.ide.common.layout.BaseLayoutRule;
-import com.android.ide.eclipse.adt.internal.editors.descriptors.DescriptorsUtils;
-import com.android.ide.eclipse.adt.internal.editors.layout.gre.NodeProxy;
-import com.android.ide.eclipse.adt.internal.editors.layout.uimodel.UiViewElementNode;
-import com.android.ide.eclipse.adt.internal.editors.uimodel.UiElementNode;
-
-import org.eclipse.jface.viewers.TreeViewer;
-import org.eclipse.jface.viewers.ViewerDropAdapter;
-import org.eclipse.swt.dnd.DND;
-import org.eclipse.swt.dnd.DropTargetEvent;
-import org.eclipse.swt.dnd.TransferData;
-
-import java.util.ArrayList;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Set;
-
-/** Drop listener for the outline page */
-/*package*/ class OutlineDropListener extends ViewerDropAdapter {
- private final OutlinePage mOutlinePage;
-
- public OutlineDropListener(OutlinePage outlinePage, TreeViewer treeViewer) {
- super(treeViewer);
- mOutlinePage = outlinePage;
- }
-
- @Override
- public void dragEnter(DropTargetEvent event) {
- if (event.detail == DND.DROP_NONE && GlobalCanvasDragInfo.getInstance().isDragging()) {
- // For some inexplicable reason, we get DND.DROP_NONE from the palette
- // even though in its drag start we set DND.DROP_COPY, so correct that here...
- int operation = DND.DROP_COPY;
- event.detail = operation;
- }
- super.dragEnter(event);
- }
-
- @Override
- public boolean performDrop(Object data) {
- final DropTargetEvent event = getCurrentEvent();
- if (event == null) {
- return false;
- }
- int location = determineLocation(event);
- if (location == LOCATION_NONE) {
- return false;
- }
-
- final SimpleElement[] elements;
- SimpleXmlTransfer sxt = SimpleXmlTransfer.getInstance();
- if (sxt.isSupportedType(event.currentDataType)) {
- if (data instanceof SimpleElement[]) {
- elements = (SimpleElement[]) data;
- } else {
- return false;
- }
- } else {
- return false;
- }
- if (elements.length == 0) {
- return false;
- }
-
- // Determine target:
- CanvasViewInfo parent = OutlinePage.getViewInfo(event.item.getData());
- if (parent == null) {
- return false;
- }
-
- int index = -1;
- UiViewElementNode parentNode = parent.getUiViewNode();
- if (location == LOCATION_BEFORE || location == LOCATION_AFTER) {
- UiViewElementNode node = parentNode;
- parent = parent.getParent();
- if (parent == null) {
- return false;
- }
- parentNode = parent.getUiViewNode();
-
- // Determine index
- index = 0;
- for (UiElementNode child : parentNode.getUiChildren()) {
- if (child == node) {
- break;
- }
- index++;
- }
- if (location == LOCATION_AFTER) {
- index++;
- }
- }
-
- // Copy into new position.
- final LayoutCanvas canvas = mOutlinePage.getEditor().getCanvasControl();
- final NodeProxy targetNode = canvas.getNodeFactory().create(parentNode);
-
- // Record children of the target right before the drop (such that we can
- // find out after the drop which exact children were inserted)
- Set<INode> children = new HashSet<INode>();
- for (INode node : targetNode.getChildren()) {
- children.add(node);
- }
-
- String label = MoveGesture.computeUndoLabel(targetNode, elements, event.detail);
- final int indexFinal = index;
- canvas.getEditorDelegate().getEditor().wrapUndoEditXmlModel(label, new Runnable() {
- @Override
- public void run() {
- InsertType insertType = MoveGesture.getInsertType(event, targetNode);
- canvas.getRulesEngine().setInsertType(insertType);
-
- Object sourceCanvas = GlobalCanvasDragInfo.getInstance().getSourceCanvas();
- boolean createNew = event.detail == DND.DROP_COPY || sourceCanvas != canvas;
- BaseLayoutRule.insertAt(targetNode, elements, createNew, indexFinal);
- targetNode.applyPendingChanges();
-
- // Clean up drag if applicable
- if (event.detail == DND.DROP_MOVE) {
- GlobalCanvasDragInfo.getInstance().removeSource();
- }
- }
- });
-
- // Now find out which nodes were added, and look up their corresponding
- // CanvasViewInfos
- final List<INode> added = new ArrayList<INode>();
- for (INode node : targetNode.getChildren()) {
- if (!children.contains(node)) {
- added.add(node);
- }
- }
- // Select the newly dropped nodes
- final SelectionManager selectionManager = canvas.getSelectionManager();
- selectionManager.setOutlineSelection(added);
-
- canvas.redraw();
-
- return true;
- }
-
- @Override
- public boolean validateDrop(Object target, int operation,
- TransferData transferType) {
- DropTargetEvent event = getCurrentEvent();
- if (event == null) {
- return false;
- }
- int location = determineLocation(event);
- if (location == LOCATION_NONE) {
- return false;
- }
-
- SimpleXmlTransfer sxt = SimpleXmlTransfer.getInstance();
- if (!sxt.isSupportedType(transferType)) {
- return false;
- }
-
- CanvasViewInfo parent = OutlinePage.getViewInfo(event.item.getData());
- if (parent == null) {
- return false;
- }
-
- UiViewElementNode parentNode = parent.getUiViewNode();
-
- if (location == LOCATION_ON) {
- // Targeting the middle of an item means to add it as a new child
- // of the given element. This is only allowed on some types of nodes.
- if (!DescriptorsUtils.canInsertChildren(parentNode.getDescriptor(),
- parent.getViewObject())) {
- return false;
- }
- }
-
- // Check that the drop target position is not a child or identical to
- // one of the dragged items
- SelectionItem[] sel = GlobalCanvasDragInfo.getInstance().getCurrentSelection();
- if (sel != null) {
- for (SelectionItem item : sel) {
- if (isAncestor(item.getViewInfo().getUiViewNode(), parentNode)) {
- return false;
- }
- }
- }
-
- return true;
- }
-
- /** Returns true if the given parent node is an ancestor of the given child node */
- private boolean isAncestor(UiElementNode parent, UiElementNode child) {
- while (child != null) {
- if (child == parent) {
- return true;
- }
- child = child.getUiParent();
- }
- return false;
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-25 04:37:23 +0000