mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Samuel Susla
3e6eedaedb
Summary: changelog: [internal] Use surfaceId type instead of raw int type in PropsParserContext Reviewed By: RSNara Differential Revision: D30667540 fbshipit-source-id: 2bf890b892851e785318e3566692ac72ec782b91
79 lines
2.0 KiB
C++
79 lines
2.0 KiB
C++
/*
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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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#pragma once
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#include <folly/dynamic.h>
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#include <memory>
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#include <string>
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namespace facebook {
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namespace react {
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/*
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* `Tag` and `InstanceHandle` are used to address React Native components.
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*/
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using Tag = int32_t;
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using InstanceHandle = struct InstanceHandleDummyStruct {
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} *;
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/*
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* An id of a running Surface instance that is used to refer to the instance.
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*/
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using SurfaceId = int32_t;
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/*
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* Universal component handle which allows to refer to `ComponentDescriptor`s
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* in maps efficiently.
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* Practically, it's something that concrete ShadowNode and concrete
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* ComponentDescriptor have in common.
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*/
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using ComponentHandle = int64_t;
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/*
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* String identifier for components used for addressing them from
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* JavaScript side.
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*/
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using ComponentName = char const *;
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/*
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* Defines how visual side effects (views, images, text, and so on) are
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* mounted (on not) on the screen.
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*/
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enum class DisplayMode {
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/*
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* The surface is running normally. All visual side-effects will be rendered
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* on the screen.
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*/
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Visible = 0,
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/*
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* The surface is `Suspended`. All new (committed after switching to the
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* mode) visual side-effects will *not* be mounted on the screen (the screen
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* will stop updating).
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*
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* The mode can be used for preparing a surface for possible future use.
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* The surface will be prepared without spending computing resources
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* on mounting, and then can be instantly mounted if needed.
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*/
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Suspended = 1,
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/*
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* The surface is `Hidden`. All previously mounted visual side-effects
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* will be unmounted, and all new (committed after switching to the mode)
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* visual side-effects will *not* be mounted on the screen until the mode is
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* switched back to `normal`.
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*
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* The mode can be used for temporarily freeing computing resources of
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* off-the-screen surfaces.
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*/
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Hidden = 2,
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};
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} // namespace react
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} // namespace facebook
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