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      1 /*
      2  * Copyright (C) 2012 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
      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.uiautomator.core;
     17 
     18 import android.graphics.Rect;
     19 import android.view.accessibility.AccessibilityNodeInfo;
     20 
     21 /**
     22  * This class contains static helper methods to work with
     23  * {@link AccessibilityNodeInfo}
     24  */
     25 class AccessibilityNodeInfoHelper {
     26 
     27     /**
     28      * Returns the node's bounds clipped to the size of the display
     29      *
     30      * @param node
     31      * @param width pixel width of the display
     32      * @param height pixel height of the display
     33      * @return null if node is null, else a Rect containing visible bounds
     34      */
     35     static Rect getVisibleBoundsInScreen(AccessibilityNodeInfo node, int width, int height) {
     36         if (node == null) {
     37             return null;
     38         }
     39         // targeted node's bounds
     40         Rect nodeRect = new Rect();
     41         node.getBoundsInScreen(nodeRect);
     42 
     43         Rect displayRect = new Rect();
     44         displayRect.top = 0;
     45         displayRect.left = 0;
     46         displayRect.right = width;
     47         displayRect.bottom = height;
     48 
     49         if (nodeRect.intersect(displayRect)) {
     50             return nodeRect;
     51         } else {
     52             return new Rect();
     53         }
     54     }
     55 }
     56