import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

devtools/client/shared/components/tree/object-provider.js

@@ -0,0 +1,90 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
+/* 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.
+   */
+  let ObjectProvider = {
+    getChildren: function (object) {
+      let children = [];
+
+      if (object instanceof ObjectProperty) {
+        object = object.value;
+      }
+
+      if (!object) {
+        return [];
+      }
+
+      if (typeof (object) == "string") {
+        return [];
+      }
+
+      for (let prop in object) {
+        try {
+          children.push(new ObjectProperty(prop, object[prop]));
+        } catch (e) {
+          console.error(e);
+        }
+      }
+      return children;
+    },
+
+    hasChildren: function (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 > 0;
+    },
+
+    getLabel: function (object) {
+      return (object instanceof ObjectProperty) ?
+        object.name : null;
+    },
+
+    getValue: function (object) {
+      return (object instanceof ObjectProperty) ?
+        object.value : null;
+    },
+
+    getKey: function (object) {
+      return (object instanceof ObjectProperty) ?
+        object.name : null;
+    },
+
+    getType: function (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;
+});