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3ad5c9e016
Summary: All code styles are terribly ugly. We have the only choise - choise something and embrace it. This particular code style was borrowed from a neibour Fabric-friendly project because it follows established Facebook guides and respects client-side traditions. Reviewed By: mdvacca Differential Revision: D10218598 fbshipit-source-id: 8c4cf6713c07768566dadef479191661c79988f0
73 lines
2.3 KiB
C++
73 lines
2.3 KiB
C++
/**
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* Copyright (c) Facebook, Inc. and its 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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#include "ScrollViewEventEmitter.h"
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namespace facebook {
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namespace react {
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void ScrollViewEventEmitter::onScroll(
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const ScrollViewMetrics &scrollViewMetrics) const {
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dispatchScrollViewEvent("scroll", scrollViewMetrics);
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}
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void ScrollViewEventEmitter::onScrollBeginDrag(
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const ScrollViewMetrics &scrollViewMetrics) const {
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dispatchScrollViewEvent("scrollBeginDrag", scrollViewMetrics);
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}
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void ScrollViewEventEmitter::onScrollEndDrag(
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const ScrollViewMetrics &scrollViewMetrics) const {
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dispatchScrollViewEvent("scrollEndDrag", scrollViewMetrics);
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}
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void ScrollViewEventEmitter::onMomentumScrollBegin(
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const ScrollViewMetrics &scrollViewMetrics) const {
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dispatchScrollViewEvent("momentumScrollBegin", scrollViewMetrics);
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}
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void ScrollViewEventEmitter::onMomentumScrollEnd(
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const ScrollViewMetrics &scrollViewMetrics) const {
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dispatchScrollViewEvent("momentumScrollEnd", scrollViewMetrics);
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}
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void ScrollViewEventEmitter::dispatchScrollViewEvent(
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const std::string &name,
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const ScrollViewMetrics &scrollViewMetrics,
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const folly::dynamic &payload) const {
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folly::dynamic compoundPayload = folly::dynamic::object();
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compoundPayload["contentOffset"] =
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folly::dynamic::object("x", scrollViewMetrics.contentOffset.x)(
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"y", scrollViewMetrics.contentOffset.y);
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compoundPayload["contentInset"] =
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folly::dynamic::object("top", scrollViewMetrics.contentInset.top)(
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"left", scrollViewMetrics.contentInset.left)(
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"bottom", scrollViewMetrics.contentInset.bottom)(
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"right", scrollViewMetrics.contentInset.right);
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compoundPayload["contentSize"] =
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folly::dynamic::object("width", scrollViewMetrics.contentSize.width)(
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"height", scrollViewMetrics.contentSize.height);
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compoundPayload["layoutMeasurement"] =
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folly::dynamic::object("width", scrollViewMetrics.containerSize.width)(
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"height", scrollViewMetrics.containerSize.height);
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compoundPayload["zoomScale"] = scrollViewMetrics.zoomScale;
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if (!payload.isNull()) {
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compoundPayload.merge_patch(payload);
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}
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dispatchEvent(name, compoundPayload);
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}
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} // namespace react
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} // namespace facebook
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