1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Eclipse Public License, Version 1.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.eclipse.org/org/documents/epl-v10.php 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.ide.common.layout; 17 18 import static com.android.ide.common.layout.LayoutConstants.FQCN_TABLE_LAYOUT; 19 20 import com.android.ide.common.api.DropFeedback; 21 import com.android.ide.common.api.INode; 22 import com.android.ide.common.api.IViewRule; 23 import com.android.ide.common.api.InsertType; 24 import com.android.ide.common.api.RuleAction; 25 import com.android.ide.common.api.SegmentType; 26 27 import java.util.List; 28 29 /** 30 * An {@link IViewRule} for android.widget.TableRow. 31 */ 32 public class TableRowRule extends LinearLayoutRule { 33 @Override isVertical(INode node)34 protected boolean isVertical(INode node) { 35 return false; 36 } 37 38 @Override supportsOrientation()39 protected boolean supportsOrientation() { 40 return false; 41 } 42 43 @Override onChildInserted(INode child, INode parent, InsertType insertType)44 public void onChildInserted(INode child, INode parent, InsertType insertType) { 45 // Overridden to inhibit the setting of layout_width/layout_height since 46 // the table row will enforce match_parent and wrap_content for width and height 47 // respectively. 48 } 49 50 @Override addLayoutActions(List<RuleAction> actions, final INode parentNode, final List<? extends INode> children)51 public void addLayoutActions(List<RuleAction> actions, final INode parentNode, 52 final List<? extends INode> children) { 53 super.addLayoutActions(actions, parentNode, children); 54 55 // Also apply table-specific actions on the table row such that you can 56 // select something in a table row and still get offered actions on the surrounding 57 // table. 58 if (children != null) { 59 INode grandParent = parentNode.getParent(); 60 if (grandParent != null && grandParent.getFqcn().equals(FQCN_TABLE_LAYOUT)) { 61 TableLayoutRule.addTableLayoutActions(mRulesEngine, actions, grandParent, 62 children); 63 } 64 } 65 } 66 67 @Override onResizeBegin(INode child, INode parent, SegmentType horizontalEdge, SegmentType verticalEdge, Object childView, Object parentView)68 public DropFeedback onResizeBegin(INode child, INode parent, SegmentType horizontalEdge, 69 SegmentType verticalEdge, Object childView, Object parentView) { 70 // No resizing in TableRows; the width is *always* match_parent and the height is 71 // *always* wrap_content. 72 return null; 73 } 74 } 75