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/*
* Copyright (C) 2011 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.common.api;
import com.android.annotations.NonNull;
import com.android.annotations.Nullable;
import com.google.common.annotations.Beta;
import java.util.List;
/**
* Default implementation of an {@link IViewRule}. This is a convenience
* implementation which makes it easier to supply designtime behavior for a
* custom view and just override the methods you are interested in.
* <p>
* <b>NOTE: This is not a public or final API; if you rely on this be prepared
* to adjust your code for the next tools release.</b>
*/
@Beta
public class AbstractViewRule implements IViewRule {
@Override
public boolean onInitialize(@NonNull String fqcn, @NonNull IClientRulesEngine engine) {
return true;
}
@Override
public void onDispose() {
}
@Override
@Nullable
public String getDisplayName() {
// Default is to not override the selection display name.
return null;
}
@Override
@Nullable
public List<String> getSelectionHint(@NonNull INode parentNode, @NonNull INode childNode) {
return null;
}
@Override
public void addLayoutActions(@NonNull List<RuleAction> actions, @NonNull INode parentNode,
@NonNull List<? extends INode> children) {
}
@Override
public void addContextMenuActions(@NonNull List<RuleAction> actions, @NonNull INode node) {
}
@Override
@Nullable
public String getDefaultActionId(@NonNull INode node) {
return null;
}
@Override
public void paintSelectionFeedback(@NonNull IGraphics graphics, @NonNull INode parentNode,
@NonNull List<? extends INode> childNodes, @Nullable Object view) {
}
@Override
@Nullable
public DropFeedback onDropEnter(@NonNull INode targetNode, @Nullable Object targetView,
@Nullable IDragElement[] elements) {
return null;
}
@Override
@Nullable
public DropFeedback onDropMove(@NonNull INode targetNode, @NonNull IDragElement[] elements,
@Nullable DropFeedback feedback, @NonNull Point p) {
return null;
}
@Override
public void onDropLeave(@NonNull INode targetNode, @NonNull IDragElement[] elements,
@Nullable DropFeedback feedback) {
// ignore
}
@Override
public void onDropped(
@NonNull INode targetNode,
@NonNull IDragElement[] elements,
@Nullable DropFeedback feedback,
@NonNull Point p) {
// ignore
}
@Override
public void onPaste(@NonNull INode targetNode, @Nullable Object targetView,
@NonNull IDragElement[] pastedElements) {
}
@Override
public void onCreate(@NonNull INode node, @NonNull INode parent,
@NonNull InsertType insertType) {
}
@Override
public void onChildInserted(@NonNull INode child, @NonNull INode parent,
@NonNull InsertType insertType) {
}
@Override
public void onRemovingChildren(@NonNull List<INode> deleted, @NonNull INode parent,
boolean moved) {
}
@Override
@Nullable
public DropFeedback onResizeBegin(@NonNull INode child, @NonNull INode parent,
@Nullable SegmentType horizontalEdge,
@Nullable SegmentType verticalEdge, @Nullable Object childView,
@Nullable Object parentView) {
return null;
}
@Override
public void onResizeUpdate(@Nullable DropFeedback feedback, @NonNull INode child,
@NonNull INode parent, @NonNull Rect newBounds,
int modifierMask) {
}
@Override
public void onResizeEnd(@Nullable DropFeedback feedback, @NonNull INode child,
@NonNull INode parent, @NonNull Rect newBounds) {
}
}
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