1 files changed, 86 insertions, 0 deletions
diff --git a/devtools/client/shared/components/tree/ObjectProvider.js b/devtools/client/shared/components/tree/ObjectProvider.js
new file mode 100644
index 0000000000..48d577ff4d
--- /dev/null
+++ b/devtools/client/shared/components/tree/ObjectProvider.js
@@ -0,0 +1,86 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+"use strict";
+
+// Make this available to both AMD and CJS environments
+define(function (require, exports, module) {
+  /**
+   * Implementation of the default data provider. A provider is state less
+   * object responsible for transformation data (usually a state) to
+   * a structure that can be directly consumed by the tree-view component.
+   */
+  const ObjectProvider = {
+    getChildren(object) {
+      const children = [];
+
+      if (object instanceof ObjectProperty) {
+        object = object.value;
+      }
+
+      if (!object) {
+        return [];
+      }
+
+      if (typeof object == "string") {
+        return [];
+      }
+
+      for (const prop in object) {
+        try {
+          children.push(new ObjectProperty(prop, object[prop]));
+        } catch (e) {
+          console.error(e);
+        }
+      }
+      return children;
+    },
+
+    hasChildren(object) {
+      if (object instanceof ObjectProperty) {
+        object = object.value;
+      }
+
+      if (!object) {
+        return false;
+      }
+
+      if (typeof object == "string") {
+        return false;
+      }
+
+      if (typeof object !== "object") {
+        return false;
+      }
+
+      return !!Object.keys(object).length;
+    },
+
+    getLabel(object) {
+      return object instanceof ObjectProperty ? object.name : null;
+    },
+
+    getValue(object) {
+      return object instanceof ObjectProperty ? object.value : null;
+    },
+
+    getKey(object) {
+      return object instanceof ObjectProperty ? object.name : null;
+    },
+
+    getType(object) {
+      return object instanceof ObjectProperty
+        ? typeof object.value
+        : typeof object;
+    },
+  };
+
+  function ObjectProperty(name, value) {
+    this.name = name;
+    this.value = value;
+  }
+
+  // Exports from this module
+  exports.ObjectProperty = ObjectProperty;
+  exports.ObjectProvider = ObjectProvider;
+});