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ModernSimpleEventPlugin.js
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ModernSimpleEventPlugin.js
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/**
* 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
*/
import type {
TopLevelType,
DOMTopLevelEventType,
} from '../../legacy-events/TopLevelEventTypes';
import type {Fiber} from 'react-reconciler/src/ReactInternalTypes';
import type {
ModernPluginModule,
DispatchQueue,
} from '../../legacy-events/PluginModuleType';
import type {EventSystemFlags} from '../EventSystemFlags';
import SyntheticEvent from '../../legacy-events/SyntheticEvent';
import * as DOMTopLevelEventTypes from '../DOMTopLevelEventTypes';
import {
topLevelEventsToDispatchConfig,
simpleEventPluginEventTypes,
} from '../DOMEventProperties';
import {
accumulateTwoPhaseListeners,
accumulateEventTargetListeners,
} from '../DOMModernPluginEventSystem';
import {IS_TARGET_PHASE_ONLY} from '../EventSystemFlags';
import SyntheticAnimationEvent from '../SyntheticAnimationEvent';
import SyntheticClipboardEvent from '../SyntheticClipboardEvent';
import SyntheticFocusEvent from '../SyntheticFocusEvent';
import SyntheticKeyboardEvent from '../SyntheticKeyboardEvent';
import SyntheticMouseEvent from '../SyntheticMouseEvent';
import SyntheticPointerEvent from '../SyntheticPointerEvent';
import SyntheticDragEvent from '../SyntheticDragEvent';
import SyntheticTouchEvent from '../SyntheticTouchEvent';
import SyntheticTransitionEvent from '../SyntheticTransitionEvent';
import SyntheticUIEvent from '../SyntheticUIEvent';
import SyntheticWheelEvent from '../SyntheticWheelEvent';
import getEventCharCode from '../getEventCharCode';
import {enableCreateEventHandleAPI} from 'shared/ReactFeatureFlags';
// Only used in DEV for exhaustiveness validation.
const knownHTMLTopLevelTypes: Array<DOMTopLevelEventType> = [
DOMTopLevelEventTypes.TOP_ABORT,
DOMTopLevelEventTypes.TOP_CANCEL,
DOMTopLevelEventTypes.TOP_CAN_PLAY,
DOMTopLevelEventTypes.TOP_CAN_PLAY_THROUGH,
DOMTopLevelEventTypes.TOP_CLOSE,
DOMTopLevelEventTypes.TOP_DURATION_CHANGE,
DOMTopLevelEventTypes.TOP_EMPTIED,
DOMTopLevelEventTypes.TOP_ENCRYPTED,
DOMTopLevelEventTypes.TOP_ENDED,
DOMTopLevelEventTypes.TOP_ERROR,
DOMTopLevelEventTypes.TOP_INPUT,
DOMTopLevelEventTypes.TOP_INVALID,
DOMTopLevelEventTypes.TOP_LOAD,
DOMTopLevelEventTypes.TOP_LOADED_DATA,
DOMTopLevelEventTypes.TOP_LOADED_METADATA,
DOMTopLevelEventTypes.TOP_LOAD_START,
DOMTopLevelEventTypes.TOP_PAUSE,
DOMTopLevelEventTypes.TOP_PLAY,
DOMTopLevelEventTypes.TOP_PLAYING,
DOMTopLevelEventTypes.TOP_PROGRESS,
DOMTopLevelEventTypes.TOP_RATE_CHANGE,
DOMTopLevelEventTypes.TOP_RESET,
DOMTopLevelEventTypes.TOP_SEEKED,
DOMTopLevelEventTypes.TOP_SEEKING,
DOMTopLevelEventTypes.TOP_STALLED,
DOMTopLevelEventTypes.TOP_SUBMIT,
DOMTopLevelEventTypes.TOP_SUSPEND,
DOMTopLevelEventTypes.TOP_TIME_UPDATE,
DOMTopLevelEventTypes.TOP_TOGGLE,
DOMTopLevelEventTypes.TOP_VOLUME_CHANGE,
DOMTopLevelEventTypes.TOP_WAITING,
];
const SimpleEventPlugin: ModernPluginModule<MouseEvent> = {
// simpleEventPluginEventTypes gets populated from
// the DOMEventProperties module.
eventTypes: simpleEventPluginEventTypes,
extractEvents: function(
dispatchQueue: DispatchQueue,
topLevelType: TopLevelType,
targetInst: null | Fiber,
nativeEvent: MouseEvent,
nativeEventTarget: null | EventTarget,
eventSystemFlags: EventSystemFlags,
targetContainer: null | EventTarget,
): void {
const dispatchConfig = topLevelEventsToDispatchConfig.get(topLevelType);
if (!dispatchConfig) {
return;
}
let EventConstructor;
switch (topLevelType) {
case DOMTopLevelEventTypes.TOP_KEY_PRESS:
// Firefox creates a keypress event for function keys too. This removes
// the unwanted keypress events. Enter is however both printable and
// non-printable. One would expect Tab to be as well (but it isn't).
if (getEventCharCode(nativeEvent) === 0) {
return;
}
/* falls through */
case DOMTopLevelEventTypes.TOP_KEY_DOWN:
case DOMTopLevelEventTypes.TOP_KEY_UP:
EventConstructor = SyntheticKeyboardEvent;
break;
case DOMTopLevelEventTypes.TOP_BLUR:
case DOMTopLevelEventTypes.TOP_FOCUS:
case DOMTopLevelEventTypes.TOP_BEFORE_BLUR:
case DOMTopLevelEventTypes.TOP_AFTER_BLUR:
EventConstructor = SyntheticFocusEvent;
break;
case DOMTopLevelEventTypes.TOP_CLICK:
// Firefox creates a click event on right mouse clicks. This removes the
// unwanted click events.
if (nativeEvent.button === 2) {
return;
}
/* falls through */
case DOMTopLevelEventTypes.TOP_AUX_CLICK:
case DOMTopLevelEventTypes.TOP_DOUBLE_CLICK:
case DOMTopLevelEventTypes.TOP_MOUSE_DOWN:
case DOMTopLevelEventTypes.TOP_MOUSE_MOVE:
case DOMTopLevelEventTypes.TOP_MOUSE_UP:
// TODO: Disabled elements should not respond to mouse events
/* falls through */
case DOMTopLevelEventTypes.TOP_MOUSE_OUT:
case DOMTopLevelEventTypes.TOP_MOUSE_OVER:
case DOMTopLevelEventTypes.TOP_CONTEXT_MENU:
EventConstructor = SyntheticMouseEvent;
break;
case DOMTopLevelEventTypes.TOP_DRAG:
case DOMTopLevelEventTypes.TOP_DRAG_END:
case DOMTopLevelEventTypes.TOP_DRAG_ENTER:
case DOMTopLevelEventTypes.TOP_DRAG_EXIT:
case DOMTopLevelEventTypes.TOP_DRAG_LEAVE:
case DOMTopLevelEventTypes.TOP_DRAG_OVER:
case DOMTopLevelEventTypes.TOP_DRAG_START:
case DOMTopLevelEventTypes.TOP_DROP:
EventConstructor = SyntheticDragEvent;
break;
case DOMTopLevelEventTypes.TOP_TOUCH_CANCEL:
case DOMTopLevelEventTypes.TOP_TOUCH_END:
case DOMTopLevelEventTypes.TOP_TOUCH_MOVE:
case DOMTopLevelEventTypes.TOP_TOUCH_START:
EventConstructor = SyntheticTouchEvent;
break;
case DOMTopLevelEventTypes.TOP_ANIMATION_END:
case DOMTopLevelEventTypes.TOP_ANIMATION_ITERATION:
case DOMTopLevelEventTypes.TOP_ANIMATION_START:
EventConstructor = SyntheticAnimationEvent;
break;
case DOMTopLevelEventTypes.TOP_TRANSITION_END:
EventConstructor = SyntheticTransitionEvent;
break;
case DOMTopLevelEventTypes.TOP_SCROLL:
EventConstructor = SyntheticUIEvent;
break;
case DOMTopLevelEventTypes.TOP_WHEEL:
EventConstructor = SyntheticWheelEvent;
break;
case DOMTopLevelEventTypes.TOP_COPY:
case DOMTopLevelEventTypes.TOP_CUT:
case DOMTopLevelEventTypes.TOP_PASTE:
EventConstructor = SyntheticClipboardEvent;
break;
case DOMTopLevelEventTypes.TOP_GOT_POINTER_CAPTURE:
case DOMTopLevelEventTypes.TOP_LOST_POINTER_CAPTURE:
case DOMTopLevelEventTypes.TOP_POINTER_CANCEL:
case DOMTopLevelEventTypes.TOP_POINTER_DOWN:
case DOMTopLevelEventTypes.TOP_POINTER_MOVE:
case DOMTopLevelEventTypes.TOP_POINTER_OUT:
case DOMTopLevelEventTypes.TOP_POINTER_OVER:
case DOMTopLevelEventTypes.TOP_POINTER_UP:
EventConstructor = SyntheticPointerEvent;
break;
default:
if (__DEV__) {
if (
knownHTMLTopLevelTypes.indexOf(topLevelType) === -1 &&
dispatchConfig.customEvent !== true
) {
console.error(
'SimpleEventPlugin: Unhandled event type, `%s`. This warning ' +
'is likely caused by a bug in React. Please file an issue.',
topLevelType,
);
}
}
// HTML Events
// @see http://www.w3.org/TR/html5/index.html#events-0
EventConstructor = SyntheticEvent;
break;
}
const event = EventConstructor.getPooled(
dispatchConfig,
null,
nativeEvent,
nativeEventTarget,
);
if (
enableCreateEventHandleAPI &&
eventSystemFlags !== undefined &&
eventSystemFlags & IS_TARGET_PHASE_ONLY &&
targetContainer != null
) {
accumulateEventTargetListeners(dispatchQueue, event, targetContainer);
} else {
accumulateTwoPhaseListeners(targetInst, dispatchQueue, event, true);
}
return event;
},
};
export default SimpleEventPlugin;