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32 lines
1002 B
JavaScript
32 lines
1002 B
JavaScript
/**
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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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* @flow
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*/
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export const TOP_TOUCH_START = 'topTouchStart';
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export const TOP_TOUCH_MOVE = 'topTouchMove';
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export const TOP_TOUCH_END = 'topTouchEnd';
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export const TOP_TOUCH_CANCEL = 'topTouchCancel';
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export const TOP_SCROLL = 'topScroll';
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export const TOP_SELECTION_CHANGE = 'topSelectionChange';
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export function isStartish(topLevelType: mixed): boolean {
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return topLevelType === TOP_TOUCH_START;
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}
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export function isMoveish(topLevelType: mixed): boolean {
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return topLevelType === TOP_TOUCH_MOVE;
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}
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export function isEndish(topLevelType: mixed): boolean {
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return topLevelType === TOP_TOUCH_END || topLevelType === TOP_TOUCH_CANCEL;
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}
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export const startDependencies = [TOP_TOUCH_START];
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export const moveDependencies = [TOP_TOUCH_MOVE];
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export const endDependencies = [TOP_TOUCH_CANCEL, TOP_TOUCH_END];
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