add BasicStyleableResourceItem

paparazzi/paparazzi/src/main/java/app/cash/paparazzi/internal/resources/base/BasicStyleableResourceItem.kt

@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2023 Square, Inc.
+ *
+ * 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 app.cash.paparazzi.internal.resources.base
+
+import app.cash.paparazzi.internal.resources.ResourceSourceFile
+import com.android.ide.common.rendering.api.AttrResourceValue
+import com.android.ide.common.rendering.api.StyleableResourceValue
+import com.android.ide.common.resources.ResourceRepository
+import com.android.resources.ResourceType
+import com.android.resources.ResourceVisibility
+
+/**
+ * Ported from: [BasicStyleableResourceItem.java](https://cs.android.com/android-studio/platform/tools/base/+/18047faf69512736b8ddb1f6a6785f58d47c893f:resource-repository/main/java/com/android/resources/base/BasicStyleableResourceItem.java)
+ *
+ * Resource item representing a styleable resource.
+ */
+class BasicStyleableResourceItem(
+  name: String,
+  sourceFile: ResourceSourceFile,
+  visibility: ResourceVisibility,
+  attrs: List<AttrResourceValue>
+) : BasicValueResourceItemBase(ResourceType.STYLEABLE, name, sourceFile, visibility), StyleableResourceValue {
+  private val attrs: List<AttrResourceValue> = attrs.toList()
+
+  override fun getAllAttributes(): List<AttrResourceValue> = attrs
+
+  override fun equals(obj: Any?): Boolean {
+    if (this === obj) return true
+    if (!super.equals(obj)) return false
+    val other = obj as BasicStyleableResourceItem
+    return attrs == other.attrs
+  }
+
+  companion object {
+    /**
+     * For an attr reference that doesn't contain formats tries to find an attr definition the reference is pointing to.
+     * If such attr definition belongs to this resource repository and has the same description and group name as
+     * the attr reference, returns the attr definition. Otherwise returns the attr reference passed as the parameter.
+     */
+    fun getCanonicalAttr(attr: AttrResourceValue, repository: ResourceRepository): AttrResourceValue {
+      if (attr.formats.isEmpty()) {
+        val items = repository.getResources(attr.namespace, ResourceType.ATTR, attr.name)
+        val item = items.filterIsInstance<AttrResourceValue>().find { it.description == attr.description && it.groupName == attr.groupName }
+        if (item != null) {
+          return item
+        }
+      }
+      return attr
+    }
+  }
+}