Initial commit 🎉

fbshipit-source-id: b6fc29740c6875d2e78953b8a7123890a67930f2
Co-authored-by: Sebastian McKenzie <sebmck@fb.com>
Co-authored-by: John Knox <jknox@fb.com>
Co-authored-by: Emil Sjölander <emilsj@fb.com>
Co-authored-by: Pritesh Nandgaonkar <prit91@fb.com>

android/plugins/inspector/descriptors/ActivityDescriptor.java

@@ -0,0 +1,129 @@
+/*
+ *  Copyright (c) 2018-present, Facebook, Inc.
+ *
+ *  This source code is licensed under the MIT license found in the LICENSE
+ *  file in the root directory of this source tree.
+ *
+ */
+
+package com.facebook.sonar.plugins.inspector.descriptors;
+
+import android.app.Activity;
+import android.view.Window;
+import com.facebook.sonar.core.SonarDynamic;
+import com.facebook.sonar.core.SonarObject;
+import com.facebook.sonar.plugins.inspector.Named;
+import com.facebook.sonar.plugins.inspector.NodeDescriptor;
+import com.facebook.sonar.plugins.inspector.Touch;
+import com.facebook.stetho.common.android.FragmentActivityAccessor;
+import com.facebook.stetho.common.android.FragmentCompat;
+import com.facebook.stetho.common.android.FragmentManagerAccessor;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import javax.annotation.Nullable;
+
+public class ActivityDescriptor extends NodeDescriptor<Activity> {
+
+  @Override
+  public void init(Activity node) {}
+
+  @Override
+  public String getId(Activity node) {
+    return Integer.toString(System.identityHashCode(node));
+  }
+
+  @Override
+  public String getName(Activity node) {
+    return node.getClass().getSimpleName();
+  }
+
+  @Override
+  public int getChildCount(Activity node) {
+    return (node.getWindow() != null ? 1 : 0)
+        + getDialogFragments(FragmentCompat.getSupportLibInstance(), node).size()
+        + getDialogFragments(FragmentCompat.getFrameworkInstance(), node).size();
+  }
+
+  @Override
+  public Object getChildAt(Activity node, int index) {
+    if (node.getWindow() != null) {
+      if (index == 0) {
+        return node.getWindow();
+      } else {
+        index--;
+      }
+    }
+
+    final List dialogs = getDialogFragments(FragmentCompat.getSupportLibInstance(), node);
+    if (index < dialogs.size()) {
+      return dialogs.get(index);
+    } else {
+      final List supportDialogs = getDialogFragments(FragmentCompat.getFrameworkInstance(), node);
+      return supportDialogs.get(index - dialogs.size());
+    }
+  }
+
+  @Override
+  public List<Named<SonarObject>> getData(Activity node) {
+    return Collections.EMPTY_LIST;
+  }
+
+  @Override
+  public void setValue(Activity node, String[] path, SonarDynamic value) throws Exception {}
+
+  @Override
+  public List<Named<String>> getAttributes(Activity node) {
+    return Collections.EMPTY_LIST;
+  }
+
+  @Override
+  public void setHighlighted(Activity node, boolean selected) throws Exception {
+    final NodeDescriptor descriptor = descriptorForClass(Window.class);
+    descriptor.setHighlighted(node.getWindow(), selected);
+  }
+
+  @Override
+  public void hitTest(Activity node, Touch touch) {
+    touch.continueWithOffset(0, 0, 0);
+  }
+
+  @Override
+  public @Nullable String getDecoration(Activity obj) {
+    return null;
+  }
+
+  @Override
+  public boolean matches(String query, Activity node) throws Exception {
+    NodeDescriptor descriptor = descriptorForClass(Object.class);
+    return descriptor.matches(query, node);
+  }
+
+  private static List<Object> getDialogFragments(FragmentCompat compat, Activity activity) {
+    if (compat == null || !compat.getFragmentActivityClass().isInstance(activity)) {
+      return Collections.EMPTY_LIST;
+    }
+
+    FragmentActivityAccessor activityAccessor = compat.forFragmentActivity();
+    Object fragmentManager = activityAccessor.getFragmentManager(activity);
+    if (fragmentManager == null) {
+      return Collections.EMPTY_LIST;
+    }
+
+    FragmentManagerAccessor fragmentManagerAccessor = compat.forFragmentManager();
+    List<Object> addedFragments = fragmentManagerAccessor.getAddedFragments(fragmentManager);
+    if (addedFragments == null) {
+      return Collections.EMPTY_LIST;
+    }
+
+    final List<Object> dialogFragments = new ArrayList<>();
+    for (int i = 0, N = addedFragments.size(); i < N; ++i) {
+      final Object fragment = addedFragments.get(i);
+      if (compat.getDialogFragmentClass().isInstance(fragment)) {
+        dialogFragments.add(fragment);
+      }
+    }
+
+    return dialogFragments;
+  }
+}