io.selendroid.server.android.ViewHierarchyAnalyzer Maven / Gradle / Ivy

Go to download
/*
 * Copyright 2012-2014 eBay Software Foundation and selendroid committers.
 * 
 * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 * 
 * 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 io.selendroid.server.android;

import io.selendroid.server.model.Factories;
import io.selendroid.server.ServerInstrumentation;
import io.selendroid.server.util.InstanceOfPredicate;
import io.selendroid.server.util.ListUtil;
import io.selendroid.server.util.SelendroidLogger;

import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import android.app.Activity;
import android.content.res.Resources;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.WebView;
import android.widget.AbsListView;
import android.widget.ScrollView;

import com.android.internal.util.Predicate;

public class ViewHierarchyAnalyzer {
  private static final ViewHierarchyAnalyzer INSTANCE = new ViewHierarchyAnalyzer();

  public static ViewHierarchyAnalyzer getDefaultInstance() {
    return INSTANCE;
  }

  public Set getTopLevelViews() {
    Class windowManager;
    try {
      String windowManagerClassName;
      if (android.os.Build.VERSION.SDK_INT >= 17) {
        windowManagerClassName = "android.view.WindowManagerGlobal";
      } else {
        windowManagerClassName = "android.view.WindowManagerImpl";
      }
      windowManager = Class.forName(windowManagerClassName);
    } catch (ClassNotFoundException e) {
      throw new RuntimeException(e);
    } catch (SecurityException e) {
      throw new RuntimeException(e);
    }
    Field views;
    Field instanceField;
    try {
      views = windowManager.getDeclaredField("mViews");
      instanceField = windowManager.getDeclaredField(getWindowManagerString());
      views.setAccessible(true);
      instanceField.setAccessible(true);
      Object instance = instanceField.get(null);
      synchronized (windowManager) {
        if (android.os.Build.VERSION.SDK_INT <= 18) {
          return new HashSet(Arrays.asList(((View[]) views.get(instance))));
        } else {
          return new HashSet((ArrayList) views.get(instance));
        }
      }
    } catch (Exception e) {
      SelendroidLogger.error("Cannot get top level views", e);
      return new HashSet();
    }
  }

  private String getWindowManagerString() {
    if (android.os.Build.VERSION.SDK_INT >= 17) {
      return "sDefaultWindowManager";
    } else if (android.os.Build.VERSION.SDK_INT >= 13) {
      return "sWindowManager";
    } else {
      return "mWindowManager";
    }
  }

  public View getRecentDecorView() {
    return getRecentDecorView(getTopLevelViews());
  }

  private View getRecentDecorView(Set views) {
    Predicate