split project with app & doric module

doric-Qt/example/doric/yoga/event/event.cpp

@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#include "event.h"
+#include <atomic>
+#include <memory>
+
+namespace facebook {
+namespace yoga {
+
+const char* LayoutPassReasonToString(const LayoutPassReason value) {
+  switch (value) {
+    case LayoutPassReason::kInitial:
+      return "initial";
+    case LayoutPassReason::kAbsLayout:
+      return "abs_layout";
+    case LayoutPassReason::kStretch:
+      return "stretch";
+    case LayoutPassReason::kMultilineStretch:
+      return "multiline_stretch";
+    case LayoutPassReason::kFlexLayout:
+      return "flex_layout";
+    case LayoutPassReason::kMeasureChild:
+      return "measure";
+    case LayoutPassReason::kAbsMeasureChild:
+      return "abs_measure";
+    case LayoutPassReason::kFlexMeasure:
+      return "flex_measure";
+    default:
+      return "unknown";
+  }
+}
+
+namespace {
+
+struct Node {
+  std::function<Event::Subscriber> subscriber = nullptr;
+  Node* next = nullptr;
+
+  Node(std::function<Event::Subscriber>&& subscriber)
+      : subscriber{std::move(subscriber)} {}
+};
+
+std::atomic<Node*> subscribers{nullptr};
+
+Node* push(Node* newHead) {
+  Node* oldHead;
+  do {
+    oldHead = subscribers.load(std::memory_order_relaxed);
+    if (newHead != nullptr) {
+      newHead->next = oldHead;
+    }
+  } while (!subscribers.compare_exchange_weak(
+      oldHead, newHead, std::memory_order_release, std::memory_order_relaxed));
+  return oldHead;
+}
+
+} // namespace
+
+void Event::reset() {
+  auto head = push(nullptr);
+  while (head != nullptr) {
+    auto current = head;
+    head = head->next;
+    delete current;
+  }
+}
+
+void Event::subscribe(std::function<Subscriber>&& subscriber) {
+  push(new Node{std::move(subscriber)});
+}
+
+void Event::publish(const YGNode& node, Type eventType, const Data& eventData) {
+  for (auto subscriber = subscribers.load(std::memory_order_relaxed);
+       subscriber != nullptr;
+       subscriber = subscriber->next) {
+    subscriber->subscriber(node, eventType, eventData);
+  }
+}
+
+} // namespace yoga
+} // namespace facebook

doric-Qt/example/doric/yoga/event/event.h

@@ -0,0 +1,146 @@
+/*
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#pragma once
+
+#include <functional>
+#include <vector>
+#include <array>
+#include <yoga/YGEnums.h>
+#include <stdint.h>
+
+struct YGConfig;
+struct YGNode;
+
+namespace facebook {
+namespace yoga {
+
+enum struct LayoutType : int {
+  kLayout = 0,
+  kMeasure = 1,
+  kCachedLayout = 2,
+  kCachedMeasure = 3
+};
+
+enum struct LayoutPassReason : int {
+  kInitial = 0,
+  kAbsLayout = 1,
+  kStretch = 2,
+  kMultilineStretch = 3,
+  kFlexLayout = 4,
+  kMeasureChild = 5,
+  kAbsMeasureChild = 6,
+  kFlexMeasure = 7,
+  COUNT
+};
+
+struct LayoutData {
+  int layouts;
+  int measures;
+  int maxMeasureCache;
+  int cachedLayouts;
+  int cachedMeasures;
+  int measureCallbacks;
+  std::array<int, static_cast<uint8_t>(LayoutPassReason::COUNT)>
+      measureCallbackReasonsCount;
+};
+
+const char* LayoutPassReasonToString(const LayoutPassReason value);
+
+struct YOGA_EXPORT Event {
+  enum Type {
+    NodeAllocation,
+    NodeDeallocation,
+    NodeLayout,
+    LayoutPassStart,
+    LayoutPassEnd,
+    MeasureCallbackStart,
+    MeasureCallbackEnd,
+    NodeBaselineStart,
+    NodeBaselineEnd,
+  };
+  class Data;
+  using Subscriber = void(const YGNode&, Type, Data);
+  using Subscribers = std::vector<std::function<Subscriber>>;
+
+  template <Type E>
+  struct TypedData {};
+
+  class Data {
+    const void* data_;
+
+  public:
+    template <Type E>
+    Data(const TypedData<E>& data) : data_{&data} {}
+
+    template <Type E>
+    const TypedData<E>& get() const {
+      return *static_cast<const TypedData<E>*>(data_);
+    };
+  };
+
+  static void reset();
+
+  static void subscribe(std::function<Subscriber>&& subscriber);
+
+  template <Type E>
+  static void publish(const YGNode& node, const TypedData<E>& eventData = {}) {
+#ifdef YG_ENABLE_EVENTS
+    publish(node, E, Data{eventData});
+#endif
+  }
+
+  template <Type E>
+  static void publish(const YGNode* node, const TypedData<E>& eventData = {}) {
+    publish<E>(*node, eventData);
+  }
+
+private:
+  static void publish(const YGNode&, Type, const Data&);
+};
+
+template <>
+struct Event::TypedData<Event::NodeAllocation> {
+  YGConfig* config;
+};
+
+template <>
+struct Event::TypedData<Event::NodeDeallocation> {
+  YGConfig* config;
+};
+
+template <>
+struct Event::TypedData<Event::LayoutPassStart> {
+  void* layoutContext;
+};
+
+template <>
+struct Event::TypedData<Event::LayoutPassEnd> {
+  void* layoutContext;
+  LayoutData* layoutData;
+};
+
+template <>
+struct Event::TypedData<Event::MeasureCallbackEnd> {
+  void* layoutContext;
+  float width;
+  YGMeasureMode widthMeasureMode;
+  float height;
+  YGMeasureMode heightMeasureMode;
+  float measuredWidth;
+  float measuredHeight;
+  const LayoutPassReason reason;
+};
+
+template <>
+struct Event::TypedData<Event::NodeLayout> {
+  LayoutType layoutType;
+  void* layoutContext;
+};
+
+} // namespace yoga
+} // namespace facebook