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5be0dff433
Summary: Second attempt at landing D9930713. Notes about the previous issue is mentioned as an inline comment below. =========== We are currently iterating through each view manager to get its class name to pass to JS. JS uses this list to define lazy property accesses for each view manager to grab the constants synchronously. This results in each view manager's class loading immediately -- causing a small perf hit. Let's avoid this view managers list entirely. JS is able to access each view manager directly by calling getConstantsForViewManager(name) Reviewed By: axe-fb Differential Revision: D10118711 fbshipit-source-id: 78de8f34db364a64f5ce6af70e3d8691353b0d4d
68 lines
2.0 KiB
JavaScript
68 lines
2.0 KiB
JavaScript
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @flow strict-local
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* @format
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*/
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'use strict';
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/**
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* The list of non-ViewManager related UIManager properties.
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*
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* In an effort to improve startup performance by lazily loading view managers,
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* the interface to access view managers will change from
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* UIManager['viewManagerName'] to UIManager.getViewManager('viewManagerName').
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* By using a function call instead of a property access, the UIManager will
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* be able to initialize and load the required view manager from native
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* synchronously. All of React Native's core components have been updated to
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* use getViewManager(). For the next few releases, any usage of
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* UIManager['viewManagerName'] will result in a warning. Because React Native
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* does not support Proxy objects, a view manager access is implied if any of
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* UIManager's properties that are not one of the properties below is being
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* accessed. Once UIManager property accesses for view managers has been fully
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* deprecated, this file will also be removed.
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*/
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module.exports = [
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'clearJSResponder',
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'configureNextLayoutAnimation',
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'createView',
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'dismissPopupMenu',
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'dispatchViewManagerCommand',
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'findSubviewIn',
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'getConstantsForViewManager',
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'getDefaultEventTypes',
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'manageChildren',
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'measure',
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'measureInWindow',
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'measureLayout',
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'measureLayoutRelativeToParent',
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'playTouchSound',
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'removeRootView',
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'removeSubviewsFromContainerWithID',
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'replaceExistingNonRootView',
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'sendAccessibilityEvent',
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'setChildren',
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'setJSResponder',
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'setLayoutAnimationEnabledExperimental',
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'showPopupMenu',
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'updateView',
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'viewIsDescendantOf',
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'PopupMenu',
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'LazyViewManagersEnabled',
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'ViewManagerNames',
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'StyleConstants',
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'AccessibilityEventTypes',
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'UIView',
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'__takeSnapshot',
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'takeSnapshot',
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'getViewManagerConfig',
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'measureViewsInRect',
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'blur',
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'focus',
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'genericBubblingEventTypes',
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'genericDirectEventTypes',
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];
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