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0792fba63f
Summary: @public This is quite a big diff but the actual meaningful change is simple: now we use ShadowView class instead of ShadowNode in mutation instructions. Note: * In some places (especially during diffing) we have to operate with ShadowNodeViewPair objects (which represents a pair of ShadowNode and ShadowView). The reason for that is that we cannot construct child ShadowViews from parent ShadowViews because they don't have any information about children. * `ShadowTree::emitLayoutEvents` is now much simpler because ShadowView better represents the specifics of this kind of object. * The code in RCTMountingManager also became simpler. This change will allow us to implement more cool tricks soon. Reviewed By: mdvacca Differential Revision: D9403564 fbshipit-source-id: dbc7c61af250144d6c7335a01dc30df0005559a2
92 lines
1.8 KiB
C++
92 lines
1.8 KiB
C++
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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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 <vector>
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#include <fabric/uimanager/ShadowView.h>
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namespace facebook {
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namespace react {
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/*
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* Describes a single native view tree mutation which may contain
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* pointers to an old shadow view, a new shadow view, a parent shadow view and
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* final index of inserted or updated view.
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* Use static methods to instantiate mutations of different types.
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*/
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struct ShadowViewMutation final {
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#pragma mark - Designated Initializers
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/*
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* Creates and returns an `Create` mutation.
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*/
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static ShadowViewMutation CreateMutation(
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ShadowView shadowView
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);
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/*
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* Creates and returns an `Delete` mutation.
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*/
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static ShadowViewMutation DeleteMutation(
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ShadowView shadowView
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);
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/*
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* Creates and returns an `Insert` mutation.
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*/
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static ShadowViewMutation InsertMutation(
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ShadowView parentShadowView,
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ShadowView childShadowView,
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int index
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);
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/*
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* Creates and returns a `Remove` mutation.
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*/
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static ShadowViewMutation RemoveMutation(
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ShadowView parentShadowView,
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ShadowView childShadowView,
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int index
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);
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/*
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* Creates and returns an `Update` mutation.
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*/
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static ShadowViewMutation UpdateMutation(
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ShadowView parentShadowView,
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ShadowView oldChildShadowView,
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ShadowView newChildShadowView,
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int index
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);
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#pragma mark - Type
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enum Type {
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Create,
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Delete,
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Insert,
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Remove,
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Update
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};
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#pragma mark - Fields
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Type type = {Create};
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ShadowView parentShadowView = {};
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ShadowView oldChildShadowView = {};
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ShadowView newChildShadowView = {};
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int index = {};
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};
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using ShadowViewMutationList = std::vector<ShadowViewMutation>;
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} // namespace react
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} // namespace facebook
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