76 lines
2.3 KiB
JavaScript
76 lines
2.3 KiB
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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* @providesModule IOSNativeBridgeEventPlugin
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* @flow
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*/
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'use strict';
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var EventPropagators = require('EventPropagators');
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var SyntheticEvent = require('SyntheticEvent');
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var UIManager = require('UIManager');
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var merge = require('merge');
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var warning = require('fbjs/lib/warning');
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var customBubblingEventTypes = UIManager.customBubblingEventTypes;
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var customDirectEventTypes = UIManager.customDirectEventTypes;
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var allTypesByEventName = {};
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for (var bubblingTypeName in customBubblingEventTypes) {
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allTypesByEventName[bubblingTypeName] = customBubblingEventTypes[bubblingTypeName];
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}
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for (var directTypeName in customDirectEventTypes) {
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warning(
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!customBubblingEventTypes[directTypeName],
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'Event cannot be both direct and bubbling: %s',
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directTypeName
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);
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allTypesByEventName[directTypeName] = customDirectEventTypes[directTypeName];
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}
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var IOSNativeBridgeEventPlugin = {
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eventTypes: merge(customBubblingEventTypes, customDirectEventTypes),
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/**
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* @param {string} topLevelType Record from `EventConstants`.
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* @param {DOMEventTarget} topLevelTarget The listening component root node.
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* @param {string} topLevelTargetID ID of `topLevelTarget`.
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* @param {object} nativeEvent Native browser event.
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* @return {*} An accumulation of synthetic events.
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* @see {EventPluginHub.extractEvents}
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*/
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extractEvents: function(
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topLevelType: string,
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topLevelTarget: EventTarget,
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topLevelTargetID: string,
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nativeEvent: Event
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): ?Object {
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var bubbleDispatchConfig = customBubblingEventTypes[topLevelType];
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var directDispatchConfig = customDirectEventTypes[topLevelType];
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var event = SyntheticEvent.getPooled(
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bubbleDispatchConfig || directDispatchConfig,
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topLevelTargetID,
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nativeEvent
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);
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if (bubbleDispatchConfig) {
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EventPropagators.accumulateTwoPhaseDispatches(event);
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} else if (directDispatchConfig) {
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EventPropagators.accumulateDirectDispatches(event);
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} else {
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return null;
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}
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return event;
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}
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};
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module.exports = IOSNativeBridgeEventPlugin;
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