Add basic drawable descriptor

Reviewed By: lblasa

Differential Revision: D39731553

fbshipit-source-id: 77a8ff244b63e2f14c671bbff6c18dbe3ec25257

android/src/main/java/com/facebook/flipper/plugins/uidebugger/descriptors/ColorDrawableDescriptor.kt

@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * 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.flipper.plugins.uidebugger.descriptors
+
+import android.graphics.drawable.ColorDrawable
+import android.os.Build
+import com.facebook.flipper.plugins.uidebugger.common.Inspectable
+import com.facebook.flipper.plugins.uidebugger.common.InspectableObject
+import com.facebook.flipper.plugins.uidebugger.common.InspectableValue
+
+object ColorDrawableDescriptor : ChainedDescriptor<ColorDrawable>() {
+
+  override fun onGetName(node: ColorDrawable): String = node.javaClass.simpleName
+
+  override fun onGetData(
+      node: ColorDrawable,
+      attributeSections: MutableMap<SectionName, InspectableObject>
+  ) {
+    val props = mutableMapOf<String, Inspectable>()
+
+    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
+      props.put("color", InspectableValue.Color(node.color, mutable = true))
+    }
+
+    attributeSections["ColorDrawable"] = InspectableObject(props.toMap())
+  }
+}

android/src/main/java/com/facebook/flipper/plugins/uidebugger/descriptors/DescriptorRegister.kt

@@ -8,6 +8,8 @@
 package com.facebook.flipper.plugins.uidebugger.descriptors
 
 import android.app.Activity
+import android.graphics.drawable.ColorDrawable
+import android.graphics.drawable.Drawable
 import android.view.View
 import android.view.ViewGroup
 import android.view.Window
@@ -33,6 +35,8 @@ class DescriptorRegister {
       mapping.register(TextView::class.java, TextViewDescriptor)
       mapping.register(Button::class.java, ButtonDescriptor)
       mapping.register(ViewPager::class.java, ViewPagerDescriptor)
+      mapping.register(Drawable::class.java, DrawableDescriptor)
+      mapping.register(ColorDrawable::class.java, ColorDrawableDescriptor)
       mapping.register(android.app.Fragment::class.java, FragmentFrameworkDescriptor)
       mapping.register(androidx.fragment.app.Fragment::class.java, FragmentSupportDescriptor)
 

android/src/main/java/com/facebook/flipper/plugins/uidebugger/descriptors/DrawableDescriptor.kt

@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * 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.flipper.plugins.uidebugger.descriptors
+
+import android.graphics.drawable.Drawable
+import android.os.Build
+import com.facebook.flipper.plugins.uidebugger.common.Inspectable
+import com.facebook.flipper.plugins.uidebugger.common.InspectableObject
+import com.facebook.flipper.plugins.uidebugger.common.InspectableValue
+import com.facebook.flipper.plugins.uidebugger.model.Bounds
+
+object DrawableDescriptor : ChainedDescriptor<Drawable>() {
+  override fun onGetName(node: Drawable): String = node.javaClass.simpleName
+
+  override fun onGetBounds(node: Drawable): Bounds =
+      Bounds(node.bounds.left, node.bounds.top, node.bounds.width(), node.bounds.height())
+
+  override fun onGetData(
+      node: Drawable,
+      attributeSections: MutableMap<SectionName, InspectableObject>
+  ) {
+    val props = mutableMapOf<String, Inspectable>()
+
+    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
+      props.put("alpha", InspectableValue.Number(node.getAlpha(), true))
+    }
+
+    attributeSections["Drawable"] = InspectableObject(props.toMap())
+  }
+
+  override fun onGetTags(node: Drawable): Set<String> = BaseTags.NativeAndroid
+}

android/src/main/java/com/facebook/flipper/plugins/uidebugger/descriptors/NodeDescriptor.kt

@@ -22,11 +22,14 @@ import com.facebook.flipper.plugins.uidebugger.model.Bounds
 typealias SectionName = String
 
 object BaseTags {
+
   const val Declarative = "Declarative"
   const val Native = "Native"
   const val Accessibility = "Accessibility"
   const val Android = "Android"
   const val Unknown = "Unknown"
+  val NativeAndroid = setOf(Android, Native)
+  val AccessibleNativeAndroid = setOf(Android, Native, Accessibility)
 }
 
 interface NodeDescriptor<T> {

android/src/main/java/com/facebook/flipper/plugins/uidebugger/descriptors/ViewDescriptor.kt

@@ -26,15 +26,12 @@ import java.lang.reflect.Field
 
 object ViewDescriptor : ChainedDescriptor<View>() {
 
-  override fun onGetName(node: View): String {
+  override fun onGetName(node: View): String = node.javaClass.simpleName
-    return node.javaClass.simpleName
-  }
 
-  override fun onGetBounds(node: View): Bounds {
+  override fun onGetBounds(node: View): Bounds =
-    return Bounds(node.left, node.top, node.width, node.height)
+      Bounds(node.left, node.top, node.width, node.height)
-  }
 
-  override fun onGetTags(node: View): Set<String> = setOf(BaseTags.Native, BaseTags.Android)
+  override fun onGetTags(node: View): Set<String> = BaseTags.NativeAndroid
 
   override fun onGetData(
       node: View,