95 lines
2.8 KiB
C
95 lines
2.8 KiB
C
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/*
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* Copyright (c) Meta Platforms, Inc. and 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 <FBReactNativeSpec/FBReactNativeSpecJSI.h>
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#include <react/renderer/observers/mutation/MutationObserverManager.h>
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#include <react/renderer/uimanager/UIManager.h>
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#include <vector>
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namespace facebook::react {
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using NativeMutationObserverObserveOptions =
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NativeMutationObserverNativeMutationObserverObserveOptions<
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// mutationObserverId
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MutationObserverId,
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// targetShadowNode
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jsi::Object,
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// subtree
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bool>;
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template <>
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struct Bridging<NativeMutationObserverObserveOptions>
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: NativeMutationObserverNativeMutationObserverObserveOptionsBridging<
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NativeMutationObserverObserveOptions> {};
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using NativeMutationRecord = NativeMutationObserverNativeMutationRecord<
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// mutationObserverId
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MutationObserverId,
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// target
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jsi::Value,
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// addedNodes
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std::vector<jsi::Value>,
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// removedNodes
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std::vector<jsi::Value>>;
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template <>
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struct Bridging<NativeMutationRecord>
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: NativeMutationObserverNativeMutationRecordBridging<NativeMutationRecord> {
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};
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class NativeMutationObserver
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: public NativeMutationObserverCxxSpec<NativeMutationObserver> {
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public:
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NativeMutationObserver(std::shared_ptr<CallInvoker> jsInvoker);
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void observe(
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jsi::Runtime& runtime,
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NativeMutationObserverObserveOptions options);
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void unobserve(
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jsi::Runtime& runtime,
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MutationObserverId mutationObserverId,
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jsi::Object targetShadowNode);
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void connect(
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jsi::Runtime& runtime,
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jsi::Function notifyMutationObservers,
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SyncCallback<jsi::Value(jsi::Value)> getPublicInstanceFromInstanceHandle);
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void disconnect(jsi::Runtime& runtime);
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std::vector<NativeMutationRecord> takeRecords(jsi::Runtime& runtime);
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private:
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MutationObserverManager mutationObserverManager_{};
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std::vector<NativeMutationRecord> pendingRecords_;
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// We need to keep a reference to the JS runtime so we can schedule the
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// notifications as microtasks when mutations occur. This is safe because
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// mutations will only happen when executing JavaScript and because this
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// native module will never survive the runtime.
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jsi::Runtime* runtime_{};
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bool notifiedMutationObservers_{};
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std::optional<jsi::Function> notifyMutationObservers_;
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std::optional<SyncCallback<jsi::Value(jsi::Value)>>
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getPublicInstanceFromInstanceHandle_;
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void onMutations(std::vector<MutationRecord>& records);
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void notifyMutationObserversIfNecessary();
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jsi::Value getPublicInstanceFromShadowNode(
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const ShadowNode& shadowNode) const;
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std::vector<jsi::Value> getPublicInstancesFromShadowNodes(
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const std::vector<ShadowNode::Shared>& shadowNodes) const;
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};
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} // namespace facebook::react
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