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d49ebbcf62
Summary: Using `EventHandlers` name was a bad idea, and I cannot tolerate it anymore. The worst part of it is that when you have a collection of `EventHandlers` objects you cannot use plural word to describe it because `EventHandlers` is an already plural word. And, this object is actually an event emitter, the thing on which we call events. Reviewed By: fkgozali Differential Revision: D8247723 fbshipit-source-id: b3303a4b9529bd6d32bb8ca0378287ebefaedda8
53 lines
1.3 KiB
C++
53 lines
1.3 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 <memory>
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#include <fabric/graphics/Geometry.h>
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#include <fabric/core/EventEmitter.h>
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#include <fabric/view/ViewEventEmitter.h>
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#include <folly/dynamic.h>
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namespace facebook {
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namespace react {
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class ScrollViewMetrics {
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public:
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Size contentSize;
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Point contentOffset;
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EdgeInsets contentInset;
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Size containerSize;
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Float zoomScale;
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};
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class ScrollViewEventEmitter;
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using SharedScrollViewEventEmitter = std::shared_ptr<const ScrollViewEventEmitter>;
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class ScrollViewEventEmitter:
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public ViewEventEmitter {
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public:
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using ViewEventEmitter::ViewEventEmitter;
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void onScroll(const ScrollViewMetrics &scrollViewMetrics) const;
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void onScrollBeginDrag(const ScrollViewMetrics &scrollViewMetrics) const;
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void onScrollEndDrag(const ScrollViewMetrics &scrollViewMetrics) const;
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void onMomentumScrollBegin(const ScrollViewMetrics &scrollViewMetrics) const;
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void onMomentumScrollEnd(const ScrollViewMetrics &scrollViewMetrics) const;
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private:
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void dispatchScrollViewEvent(const std::string &name, const ScrollViewMetrics &scrollViewMetrics, const folly::dynamic &payload = {}) const;
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};
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} // namespace react
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} // namespace facebook
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