264 lines
10 KiB
C++
264 lines
10 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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#include "FabricUIManager.h"
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#include <glog/logging.h>
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#include <fabric/components/view/ViewComponentDescriptor.h>
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#include <fabric/components/view/ViewProps.h>
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#include <fabric/components/view/ViewShadowNode.h>
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#include <fabric/core/componentDescriptor.h>
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#include <fabric/core/LayoutContext.h>
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#include <fabric/core/ShadowNodeFragment.h>
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#include <fabric/debug/DebugStringConvertible.h>
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#include <fabric/debug/DebugStringConvertibleItem.h>
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namespace facebook {
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namespace react {
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// TODO: Kill this flag and remove debug logging.
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const bool isLoggingEnabled = false;
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static const RawProps rawPropsFromDynamic(const folly::dynamic object) {
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// TODO: Convert this to something smarter, probably returning `std::iterator`.
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RawProps result;
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if (object.isNull()) {
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return result;
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}
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assert(object.isObject());
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for (const auto &pair : object.items()) {
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assert(pair.first.isString());
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result[pair.first.asString()] = pair.second;
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}
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return result;
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}
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static const std::string componentNameByReactViewName(std::string viewName) {
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// We need this function only for the transition period;
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// eventually, all names will be unified.
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std::string rctPrefix("RCT");
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if (std::mismatch(rctPrefix.begin(), rctPrefix.end(), viewName.begin()).first == rctPrefix.end()) {
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// If `viewName` has "RCT" prefix, remove it.
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viewName.erase(0, rctPrefix.length());
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}
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// Fabric uses slightly new names for Text components because of differences
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// in semantic.
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if (viewName == "Text") {
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return "Paragraph";
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}
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if (viewName == "VirtualText") {
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return "Text";
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}
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if (viewName == "ImageView") {
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return "Image";
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}
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if (viewName == "AndroidHorizontalScrollView") {
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return "ScrollView";
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}
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// We need this temporarly for testing purposes until we have proper
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// implementation of core components.
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if (
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viewName == "SinglelineTextInputView" ||
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viewName == "MultilineTextInputView" ||
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viewName == "RefreshControl" ||
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viewName == "SafeAreaView" ||
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viewName == "ScrollContentView" ||
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viewName == "AndroidHorizontalScrollContentView" // Android
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) {
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return "View";
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}
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return viewName;
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}
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FabricUIManager::~FabricUIManager() {
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if (eventHandler_) {
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releaseEventHandlerFunction_(eventHandler_);
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}
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}
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void FabricUIManager::setComponentDescriptorRegistry(const SharedComponentDescriptorRegistry &componentDescriptorRegistry) {
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componentDescriptorRegistry_ = componentDescriptorRegistry;
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}
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void FabricUIManager::setDelegate(UIManagerDelegate *delegate) {
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delegate_ = delegate;
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}
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UIManagerDelegate *FabricUIManager::getDelegate() {
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return delegate_;
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}
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void FabricUIManager::setDispatchEventToEmptyTargetFunction(std::function<DispatchEventToEmptyTargetFunction> dispatchEventFunction) {
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dispatchEventToEmptyTargetFunction_ = dispatchEventFunction;
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}
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void FabricUIManager::setDispatchEventToTargetFunction(std::function<DispatchEventToTargetFunction> dispatchEventFunction) {
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dispatchEventToTargetFunction_ = dispatchEventFunction;
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}
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void FabricUIManager::setReleaseEventHandlerFunction(std::function<ReleaseEventHandlerFunction> releaseEventHandlerFunction) {
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releaseEventHandlerFunction_ = releaseEventHandlerFunction;
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}
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void FabricUIManager::setReleaseEventTargetFunction(std::function<ReleaseEventTargetFunction> releaseEventTargetFunction) {
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releaseEventTargetFunction_ = releaseEventTargetFunction;
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}
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void FabricUIManager::dispatchEventToTarget(const EventTarget &eventTarget, const std::string &type, const folly::dynamic &payload) const {
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if (eventTarget != EmptyEventTarget) {
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dispatchEventToTargetFunction_(
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eventHandler_,
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eventTarget,
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const_cast<std::string &>(type),
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const_cast<folly::dynamic &>(payload)
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);
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}
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else {
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dispatchEventToEmptyTargetFunction_(
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eventHandler_,
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const_cast<std::string &>(type),
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const_cast<folly::dynamic &>(payload)
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);
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}
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}
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void FabricUIManager::releaseEventTarget(const EventTarget &eventTarget) const {
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releaseEventTargetFunction_(eventTarget);
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}
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SharedShadowNode FabricUIManager::createNode(int tag, std::string viewName, int rootTag, folly::dynamic props, EventTarget eventTarget) {
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isLoggingEnabled && LOG(INFO) << "FabricUIManager::createNode(tag: " << tag << ", name: " << viewName << ", rootTag: " << rootTag << ", props: " << props << ")";
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ComponentName componentName = componentNameByReactViewName(viewName);
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const SharedComponentDescriptor &componentDescriptor = (*componentDescriptorRegistry_)[componentName];
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RawProps rawProps = rawPropsFromDynamic(props);
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SharedShadowNode shadowNode =
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componentDescriptor->createShadowNode({
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.tag = tag,
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.rootTag = rootTag,
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.eventEmitter = componentDescriptor->createEventEmitter(eventTarget, tag),
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.props = componentDescriptor->cloneProps(nullptr, rawProps)
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});
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isLoggingEnabled && LOG(INFO) << "FabricUIManager::createNode() -> " << shadowNode->getDebugDescription(DebugStringConvertibleOptions {.format = false});
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if (delegate_) {
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delegate_->uiManagerDidCreateShadowNode(shadowNode);
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}
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return shadowNode;
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}
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SharedShadowNode FabricUIManager::cloneNode(const SharedShadowNode &shadowNode) {
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isLoggingEnabled && LOG(INFO) << "FabricUIManager::cloneNode(shadowNode: " << shadowNode->getDebugDescription(DebugStringConvertibleOptions {.format = false}) << ")";
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const SharedComponentDescriptor &componentDescriptor = (*componentDescriptorRegistry_)[shadowNode];
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SharedShadowNode clonedShadowNode =
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componentDescriptor->cloneShadowNode(*shadowNode, {});
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isLoggingEnabled && LOG(INFO) << "FabricUIManager::cloneNode() -> " << clonedShadowNode->getDebugDescription(DebugStringConvertibleOptions {.format = false});
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return clonedShadowNode;
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}
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SharedShadowNode FabricUIManager::cloneNodeWithNewChildren(const SharedShadowNode &shadowNode) {
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isLoggingEnabled && LOG(INFO) << "FabricUIManager::cloneNodeWithNewChildren(shadowNode: " << shadowNode->getDebugDescription(DebugStringConvertibleOptions {.format = false}) << ")";
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// Assuming semantic: Cloning with same props but empty children.
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const SharedComponentDescriptor &componentDescriptor = (*componentDescriptorRegistry_)[shadowNode];
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SharedShadowNode clonedShadowNode =
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componentDescriptor->cloneShadowNode(
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*shadowNode,
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{
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.children = ShadowNode::emptySharedShadowNodeSharedList()
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}
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);
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isLoggingEnabled && LOG(INFO) << "FabricUIManager::cloneNodeWithNewChildren() -> " << clonedShadowNode->getDebugDescription(DebugStringConvertibleOptions {.format = false});
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return clonedShadowNode;
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}
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SharedShadowNode FabricUIManager::cloneNodeWithNewProps(const SharedShadowNode &shadowNode, folly::dynamic props) {
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isLoggingEnabled && LOG(INFO) << "FabricUIManager::cloneNodeWithNewProps(shadowNode: " << shadowNode->getDebugDescription(DebugStringConvertibleOptions {.format = false}) << ", props: " << props << ")";
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// Assuming semantic: Cloning with same children and specified props.
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const SharedComponentDescriptor &componentDescriptor = (*componentDescriptorRegistry_)[shadowNode];
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RawProps rawProps = rawPropsFromDynamic(props);
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SharedShadowNode clonedShadowNode =
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componentDescriptor->cloneShadowNode(
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*shadowNode,
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{
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.props = componentDescriptor->cloneProps(shadowNode->getProps(), rawProps)
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}
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);
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isLoggingEnabled && LOG(INFO) << "FabricUIManager::cloneNodeWithNewProps() -> " << clonedShadowNode->getDebugDescription(DebugStringConvertibleOptions {.format = false});
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return clonedShadowNode;
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}
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SharedShadowNode FabricUIManager::cloneNodeWithNewChildrenAndProps(const SharedShadowNode &shadowNode, folly::dynamic props) {
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isLoggingEnabled && LOG(INFO) << "FabricUIManager::cloneNodeWithNewChildrenAndProps(shadowNode: " << shadowNode->getDebugDescription(DebugStringConvertibleOptions {.format = false}) << ", props: " << props << ")";
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// Assuming semantic: Cloning with empty children and specified props.
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const SharedComponentDescriptor &componentDescriptor = (*componentDescriptorRegistry_)[shadowNode];
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RawProps rawProps = rawPropsFromDynamic(props);
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SharedShadowNode clonedShadowNode =
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componentDescriptor->cloneShadowNode(
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*shadowNode,
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{
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.props = componentDescriptor->cloneProps(shadowNode->getProps(), rawProps),
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.children = ShadowNode::emptySharedShadowNodeSharedList()
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}
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);
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isLoggingEnabled && LOG(INFO) << "FabricUIManager::cloneNodeWithNewChildrenAndProps() -> " << clonedShadowNode->getDebugDescription(DebugStringConvertibleOptions {.format = false});
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return clonedShadowNode;
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}
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void FabricUIManager::appendChild(const SharedShadowNode &parentShadowNode, const SharedShadowNode &childShadowNode) {
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isLoggingEnabled && LOG(INFO) << "FabricUIManager::appendChild(parentShadowNode: " << parentShadowNode->getDebugDescription(DebugStringConvertibleOptions {.format = false}) << ", childShadowNode: " << childShadowNode->getDebugDescription(DebugStringConvertibleOptions {.format = false}) << ")";
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const SharedComponentDescriptor &componentDescriptor = (*componentDescriptorRegistry_)[parentShadowNode];
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componentDescriptor->appendChild(parentShadowNode, childShadowNode);
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}
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SharedShadowNodeUnsharedList FabricUIManager::createChildSet(int rootTag) {
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isLoggingEnabled && LOG(INFO) << "FabricUIManager::createChildSet(rootTag: " << rootTag << ")";
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return std::make_shared<SharedShadowNodeList>(SharedShadowNodeList({}));
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}
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void FabricUIManager::appendChildToSet(const SharedShadowNodeUnsharedList &shadowNodeList, const SharedShadowNode &shadowNode) {
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isLoggingEnabled && LOG(INFO) << "FabricUIManager::appendChildToSet(shadowNodeList: " << shadowNodeList << ", shadowNode: " << shadowNode->getDebugDescription(DebugStringConvertibleOptions {.format = false}) << ")";
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shadowNodeList->push_back(shadowNode);
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}
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void FabricUIManager::completeRoot(int rootTag, const SharedShadowNodeUnsharedList &children) {
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isLoggingEnabled && LOG(INFO) << "FabricUIManager::completeRoot(rootTag: " << rootTag << ", shadowNodeList: " << children << ")";
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if (delegate_) {
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delegate_->uiManagerDidFinishTransaction(rootTag, children);
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}
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}
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void FabricUIManager::registerEventHandler(const EventHandler &eventHandler) {
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isLoggingEnabled && LOG(INFO) << "FabricUIManager::registerEventHandler(eventHandler: " << eventHandler << ")";
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eventHandler_ = eventHandler;
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}
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} // namespace react
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} // namespace facebook
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