93 lines
2.8 KiB
C++
93 lines
2.8 KiB
C++
/*
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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 <optional>
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#include <string>
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#include <vector>
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namespace facebook::react {
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using NativeMutationObserverObserveOptions =
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NativeMutationObserverCxxNativeMutationObserverObserveOptions<
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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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: NativeMutationObserverCxxNativeMutationObserverObserveOptionsBridging<
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NativeMutationObserverObserveOptions> {};
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using NativeMutationRecord = NativeMutationObserverCxxNativeMutationRecord<
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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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: NativeMutationObserverCxxNativeMutationRecordBridging<
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NativeMutationRecord> {};
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class NativeMutationObserver
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: public NativeMutationObserverCxxSpec<NativeMutationObserver>,
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std::enable_shared_from_this<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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AsyncCallback<> notifyMutationObservers,
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jsi::Function 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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// This is passed to `connect` so we can retain references to public instances
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// when mutation occur, before React cleans up unmounted instances.
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jsi::Value getPublicInstanceFromInstanceHandle_ = jsi::Value::undefined();
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std::function<jsi::Value(const ShadowNode&)> getPublicInstanceFromShadowNode_;
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bool notifiedMutationObservers_{};
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std::function<void()> notifyMutationObservers_;
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void onMutations(std::vector<MutationRecord>& records);
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void notifyMutationObserversIfNecessary();
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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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