43 lines
1.1 KiB
JavaScript
43 lines
1.1 KiB
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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* @providesModule InspectorUtils
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*/
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'use strict';
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var ReactNativeComponentTree = require('react/lib/ReactNativeComponentTree');
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function traverseOwnerTreeUp(hierarchy, instance) {
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if (instance) {
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hierarchy.unshift(instance);
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traverseOwnerTreeUp(hierarchy, instance._currentElement._owner);
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}
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}
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function findInstanceByNativeTag(nativeTag) {
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return ReactNativeComponentTree.getInstanceFromNode(nativeTag);
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}
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function getOwnerHierarchy(instance) {
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var hierarchy = [];
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traverseOwnerTreeUp(hierarchy, instance);
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return hierarchy;
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}
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function lastNotNativeInstance(hierarchy) {
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for (let i = hierarchy.length - 1; i > 1; i--) {
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const instance = hierarchy[i];
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if (!instance.viewConfig) {
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return instance;
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}
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}
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return hierarchy[0];
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}
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module.exports = {findInstanceByNativeTag, getOwnerHierarchy, lastNotNativeInstance};
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