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Refactor DOM plugin system to single module
Clean up comments
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| /** | ||
| * 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. | ||
| * @flow | ||
| */ | ||
|
|
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| import type {Fiber} from 'react-reconciler/src/ReactFiber'; | ||
|
|
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| import invariant from 'shared/invariant'; | ||
|
|
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| import {getFiberCurrentPropsFromNode} from './EventPluginUtils'; | ||
|
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| function isInteractive(tag) { | ||
| return ( | ||
| tag === 'button' || | ||
| tag === 'input' || | ||
| tag === 'select' || | ||
| tag === 'textarea' | ||
| ); | ||
| } | ||
|
|
||
| function shouldPreventMouseEvent(name, type, props) { | ||
| switch (name) { | ||
| case 'onClick': | ||
| case 'onClickCapture': | ||
| case 'onDoubleClick': | ||
| case 'onDoubleClickCapture': | ||
| case 'onMouseDown': | ||
| case 'onMouseDownCapture': | ||
| case 'onMouseMove': | ||
| case 'onMouseMoveCapture': | ||
| case 'onMouseUp': | ||
| case 'onMouseUpCapture': | ||
| case 'onMouseEnter': | ||
| return !!(props.disabled && isInteractive(type)); | ||
| default: | ||
| return false; | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * @param {object} inst The instance, which is the source of events. | ||
| * @param {string} registrationName Name of listener (e.g. `onClick`). | ||
| * @return {?function} The stored callback. | ||
| */ | ||
| export default function getListener(inst: Fiber, registrationName: string) { | ||
| let listener; | ||
|
|
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| // TODO: shouldPreventMouseEvent is DOM-specific and definitely should not | ||
| // live here; needs to be moved to a better place soon | ||
| const stateNode = inst.stateNode; | ||
| if (!stateNode) { | ||
| // Work in progress (ex: onload events in incremental mode). | ||
| return null; | ||
| } | ||
| const props = getFiberCurrentPropsFromNode(stateNode); | ||
| if (!props) { | ||
| // Work in progress. | ||
| return null; | ||
| } | ||
| listener = props[registrationName]; | ||
| if (shouldPreventMouseEvent(registrationName, inst.type, props)) { | ||
| return null; | ||
| } | ||
| invariant( | ||
| !listener || typeof listener === 'function', | ||
| 'Expected `%s` listener to be a function, instead got a value of `%s` type.', | ||
| registrationName, | ||
| typeof listener, | ||
| ); | ||
| return listener; | ||
| } |
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