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/*
* 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.common.layout;
import com.android.annotations.NonNull;
import com.android.annotations.Nullable;
import com.android.ide.common.api.DrawingStyle;
import com.android.ide.common.api.DropFeedback;
import com.android.ide.common.api.IDragElement;
import com.android.ide.common.api.IFeedbackPainter;
import com.android.ide.common.api.IGraphics;
import com.android.ide.common.api.INode;
import com.android.ide.common.api.Point;
import com.android.ide.common.api.Rect;
/** Rule for AdapterView subclasses that don't have more specific rules */
public class AdapterViewRule extends BaseLayoutRule {
@Override
public DropFeedback onDropEnter(@NonNull INode targetNode, @Nullable Object targetView,
@Nullable IDragElement[] elements) {
// You are not allowed to insert children into AdapterViews; you must
// use the dedicated addView methods etc dynamically
DropFeedback dropFeedback = new DropFeedback(null, new IFeedbackPainter() {
@Override
public void paint(@NonNull IGraphics gc, @NonNull INode node,
@NonNull DropFeedback feedback) {
Rect b = node.getBounds();
if (b.isValid()) {
gc.useStyle(DrawingStyle.DROP_RECIPIENT);
gc.drawRect(b);
}
}
});
String fqcn = targetNode.getFqcn();
String name = fqcn.substring(fqcn.lastIndexOf('.') +1);
dropFeedback.errorMessage = String.format(
"%s cannot be configured via XML; add content to the AdapterView using Java code",
name);
dropFeedback.invalidTarget = true;
return dropFeedback;
}
@Override
public DropFeedback onDropMove(@NonNull INode targetNode, @NonNull IDragElement[] elements,
@Nullable DropFeedback feedback, @NonNull Point p) {
feedback.invalidTarget = true;
return feedback;
}
}
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