cjs • Lines: 504var $74b2c5b1e7ea9589$exports = require("../live-announcer/LiveAnnouncer.cjs");
var $3c73045d61be2d91$exports = require("../overlays/ariaHideOutside.cjs");
var $da02ee888921bc9e$exports = require("../utils/shadowdom/DOMFunctions.cjs");
var $c67ff3d36836a1c1$exports = require("./utils.cjs");
var $8f130d4aeb0f65e8$exports = require("../utils/isVirtualEvent.cjs");
var $k30U5$react = require("react");
function $parcel$export(e, n, v, s) {
Object.defineProperty(e, n, {get: v, set: s, enumerable: true, configurable: true});
}
$parcel$export(module.exports, "registerDropTarget", function () { return $7394b2797bc2343d$export$c28d9fb4a54e471a; });
$parcel$export(module.exports, "registerDropItem", function () { return $7394b2797bc2343d$export$aef80212ac99c003; });
$parcel$export(module.exports, "beginDragging", function () { return $7394b2797bc2343d$export$549dbcf8649bf3b2; });
$parcel$export(module.exports, "useDragSession", function () { return $7394b2797bc2343d$export$418e185dd3f1b968; });
$parcel$export(module.exports, "isVirtualDragging", function () { return $7394b2797bc2343d$export$403bc76cbf68cf60; });
/*
* Copyright 2020 Adobe. All rights reserved.
* This file is licensed to you under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. You may obtain a copy
* of the License at http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under
* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
* OF ANY KIND, either express or implied. See the License for the specific language
* governing permissions and limitations under the License.
*/
let $7394b2797bc2343d$var$dropTargets = new Map();
let $7394b2797bc2343d$var$dropItems = new Map();
let $7394b2797bc2343d$var$dragSession = null;
let $7394b2797bc2343d$var$subscriptions = new Set();
function $7394b2797bc2343d$export$c28d9fb4a54e471a(target) {
$7394b2797bc2343d$var$dropTargets.set(target.element, target);
$7394b2797bc2343d$var$dragSession?.updateValidDropTargets();
return ()=>{
$7394b2797bc2343d$var$dropTargets.delete(target.element);
$7394b2797bc2343d$var$dragSession?.updateValidDropTargets();
};
}
function $7394b2797bc2343d$export$aef80212ac99c003(item) {
$7394b2797bc2343d$var$dropItems.set(item.element, item);
return ()=>{
$7394b2797bc2343d$var$dropItems.delete(item.element);
};
}
function $7394b2797bc2343d$export$549dbcf8649bf3b2(target, stringFormatter) {
if ($7394b2797bc2343d$var$dragSession) throw new Error('Cannot begin dragging while already dragging');
$7394b2797bc2343d$var$dragSession = new $7394b2797bc2343d$var$DragSession(target, stringFormatter);
requestAnimationFrame(()=>{
if ($7394b2797bc2343d$var$dragSession) {
$7394b2797bc2343d$var$dragSession.setup();
if ((0, $c67ff3d36836a1c1$exports.getDragModality)() === 'keyboard') $7394b2797bc2343d$var$dragSession.next();
}
});
for (let cb of $7394b2797bc2343d$var$subscriptions)cb();
}
function $7394b2797bc2343d$export$418e185dd3f1b968() {
let [session, setSession] = (0, $k30U5$react.useState)($7394b2797bc2343d$var$dragSession);
(0, $k30U5$react.useEffect)(()=>{
let cb = ()=>setSession($7394b2797bc2343d$var$dragSession);
$7394b2797bc2343d$var$subscriptions.add(cb);
return ()=>{
$7394b2797bc2343d$var$subscriptions.delete(cb);
};
}, []);
return session;
}
function $7394b2797bc2343d$export$403bc76cbf68cf60() {
return !!$7394b2797bc2343d$var$dragSession;
}
function $7394b2797bc2343d$var$endDragging() {
$7394b2797bc2343d$var$dragSession = null;
for (let cb of $7394b2797bc2343d$var$subscriptions)cb();
}
function $7394b2797bc2343d$export$7454aff2e161f241(element) {
for (let target of $7394b2797bc2343d$var$dropTargets.keys()){
if ((0, $da02ee888921bc9e$exports.nodeContains)(target, element)) return true;
}
return false;
}
const $7394b2797bc2343d$var$CANCELED_EVENTS = [
'pointerdown',
'pointermove',
'pointerenter',
'pointerleave',
'pointerover',
'pointerout',
'pointerup',
'mousedown',
'mousemove',
'mouseenter',
'mouseleave',
'mouseover',
'mouseout',
'mouseup',
'touchstart',
'touchmove',
'touchend',
'focusin',
'focusout'
];
const $7394b2797bc2343d$var$CLICK_EVENTS = [
'pointerup',
'mouseup',
'touchend'
];
const $7394b2797bc2343d$var$MESSAGES = {
keyboard: 'dragStartedKeyboard',
touch: 'dragStartedTouch',
virtual: 'dragStartedVirtual'
};
class $7394b2797bc2343d$var$DragSession {
constructor(target, stringFormatter){
this.validDropTargets = [];
this.currentDropTarget = null;
this.currentDropItem = null;
this.dropOperation = null;
this.mutationObserver = null;
this.restoreAriaHidden = null;
this.isVirtualClick = false;
this.dragTarget = target;
this.stringFormatter = stringFormatter;
this.onKeyDown = this.onKeyDown.bind(this);
this.onKeyUp = this.onKeyUp.bind(this);
this.onFocus = this.onFocus.bind(this);
this.onBlur = this.onBlur.bind(this);
this.onClick = this.onClick.bind(this);
this.onPointerDown = this.onPointerDown.bind(this);
this.cancelEvent = this.cancelEvent.bind(this);
this.initialFocused = false;
}
setup() {
document.addEventListener('keydown', this.onKeyDown, true);
document.addEventListener('keyup', this.onKeyUp, true);
window.addEventListener('focus', this.onFocus, true);
window.addEventListener('blur', this.onBlur, true);
document.addEventListener('click', this.onClick, true);
document.addEventListener('pointerdown', this.onPointerDown, true);
for (let event of $7394b2797bc2343d$var$CANCELED_EVENTS)document.addEventListener(event, this.cancelEvent, true);
this.mutationObserver = new MutationObserver(()=>this.updateValidDropTargets());
this.updateValidDropTargets();
(0, $74b2c5b1e7ea9589$exports.announce)(this.stringFormatter.format($7394b2797bc2343d$var$MESSAGES[(0, $c67ff3d36836a1c1$exports.getDragModality)()]));
}
teardown() {
document.removeEventListener('keydown', this.onKeyDown, true);
document.removeEventListener('keyup', this.onKeyUp, true);
window.removeEventListener('focus', this.onFocus, true);
window.removeEventListener('blur', this.onBlur, true);
document.removeEventListener('click', this.onClick, true);
document.removeEventListener('pointerdown', this.onPointerDown, true);
for (let event of $7394b2797bc2343d$var$CANCELED_EVENTS)document.removeEventListener(event, this.cancelEvent, true);
this.mutationObserver?.disconnect();
this.restoreAriaHidden?.();
}
onKeyDown(e) {
this.cancelEvent(e);
if (e.key === 'Escape') {
this.cancel();
return;
}
if (e.key === 'Tab' && !(e.metaKey || e.altKey || e.ctrlKey)) {
if (e.shiftKey) this.previous();
else this.next();
}
if (typeof this.currentDropTarget?.onKeyDown === 'function') this.currentDropTarget.onKeyDown(e, this.dragTarget);
}
onKeyUp(e) {
this.cancelEvent(e);
if (e.key === 'Enter') {
if (e.altKey || (0, $da02ee888921bc9e$exports.nodeContains)(this.getCurrentActivateButton(), (0, $da02ee888921bc9e$exports.getEventTarget)(e))) this.activate(this.currentDropTarget, this.currentDropItem);
else this.drop();
}
}
getCurrentActivateButton() {
return this.currentDropItem?.activateButtonRef?.current ?? this.currentDropTarget?.activateButtonRef?.current ?? null;
}
onFocus(e) {
let activateButton = this.getCurrentActivateButton();
let eventTarget = (0, $da02ee888921bc9e$exports.getEventTarget)(e);
if (eventTarget === activateButton) {
// TODO: canceling this breaks the focus ring. Revisit when we support tabbing.
this.cancelEvent(e);
return;
}
// Prevent focus events, except to the original drag target.
if (eventTarget !== this.dragTarget.element) this.cancelEvent(e);
// Ignore focus events on the window/document (JSDOM). Will be handled in onBlur, below.
if (!(eventTarget instanceof HTMLElement) || eventTarget === this.dragTarget.element) return;
let dropTarget = this.validDropTargets.find((target)=>target.element === eventTarget) || this.validDropTargets.find((target)=>(0, $da02ee888921bc9e$exports.nodeContains)(target.element, eventTarget));
if (!dropTarget) {
// if (e.target === activateButton) {
// activateButton.focus();
// }
if (this.currentDropTarget) this.currentDropTarget.element.focus();
else this.dragTarget.element.focus();
return;
}
let item = $7394b2797bc2343d$var$dropItems.get(eventTarget);
if (dropTarget) this.setCurrentDropTarget(dropTarget, item);
}
onBlur(e) {
let activateButton = this.getCurrentActivateButton();
if (e.relatedTarget === activateButton) {
this.cancelEvent(e);
return;
}
if ((0, $da02ee888921bc9e$exports.getEventTarget)(e) !== this.dragTarget.element) this.cancelEvent(e);
// If nothing is gaining focus, or e.relatedTarget is the window/document (JSDOM),
// restore focus back to the current drop target if any, or the original drag target.
if (!e.relatedTarget || !(e.relatedTarget instanceof HTMLElement)) {
if (this.currentDropTarget) this.currentDropTarget.element.focus();
else this.dragTarget.element.focus();
}
}
onClick(e) {
this.cancelEvent(e);
if ((0, $8f130d4aeb0f65e8$exports.isVirtualClick)(e) || this.isVirtualClick) {
let dropElements = $7394b2797bc2343d$var$dropItems.values();
let eventTarget = (0, $da02ee888921bc9e$exports.getEventTarget)(e);
let item = [
...dropElements
].find((item)=>item.element === eventTarget || (0, $da02ee888921bc9e$exports.nodeContains)(item.activateButtonRef?.current, eventTarget));
let dropTarget = this.validDropTargets.find((target)=>(0, $da02ee888921bc9e$exports.nodeContains)(target.element, eventTarget));
let activateButton = item?.activateButtonRef?.current ?? dropTarget?.activateButtonRef?.current;
if ((0, $da02ee888921bc9e$exports.nodeContains)(activateButton, eventTarget) && dropTarget) {
this.activate(dropTarget, item);
return;
}
if ((0, $da02ee888921bc9e$exports.getEventTarget)(e) === this.dragTarget.element) {
this.cancel();
return;
}
if (dropTarget) {
this.setCurrentDropTarget(dropTarget, item);
this.drop(item);
}
}
}
onPointerDown(e) {
// Android Talkback double tap has e.detail = 1 for onClick. Detect the virtual click in onPointerDown before onClick fires
// so we can properly perform cancel and drop operations.
this.cancelEvent(e);
this.isVirtualClick = (0, $8f130d4aeb0f65e8$exports.isVirtualPointerEvent)(e);
}
cancelEvent(e) {
// Allow focusin and focusout on the drag target so focus ring works properly.
let eventTarget = (0, $da02ee888921bc9e$exports.getEventTarget)(e);
if ((e.type === 'focusin' || e.type === 'focusout') && (eventTarget === this.dragTarget?.element || eventTarget === this.getCurrentActivateButton())) return;
// Allow default for events that might cancel a click event
if (!$7394b2797bc2343d$var$CLICK_EVENTS.includes(e.type)) e.preventDefault();
e.stopPropagation();
e.stopImmediatePropagation();
}
updateValidDropTargets() {
if (!this.mutationObserver) return;
this.mutationObserver.disconnect();
if (this.restoreAriaHidden) this.restoreAriaHidden();
this.validDropTargets = $7394b2797bc2343d$var$findValidDropTargets(this.dragTarget);
// Shuffle drop target order based on starting drag target.
if (this.validDropTargets.length > 0) {
let nearestIndex = this.findNearestDropTarget();
this.validDropTargets = [
...this.validDropTargets.slice(nearestIndex),
...this.validDropTargets.slice(0, nearestIndex)
];
}
if (this.currentDropTarget && !this.validDropTargets.includes(this.currentDropTarget)) this.setCurrentDropTarget(this.validDropTargets[0]);
// Find valid drop items within collections
let types = (0, $c67ff3d36836a1c1$exports.getTypes)(this.dragTarget.items);
let validDropItems = [
...$7394b2797bc2343d$var$dropItems.values()
].filter((item)=>{
if (typeof item.getDropOperation === 'function') return item.getDropOperation(types, this.dragTarget.allowedDropOperations) !== 'cancel';
return true;
});
// Filter out drop targets that contain valid items. We don't want to stop hiding elements
// other than the drop items that exist inside the collection.
let visibleDropTargets = this.validDropTargets.filter((target)=>!validDropItems.some((item)=>(0, $da02ee888921bc9e$exports.nodeContains)(target.element, item.element)));
this.restoreAriaHidden = (0, $3c73045d61be2d91$exports.ariaHideOutside)([
this.dragTarget.element,
...validDropItems.flatMap((item)=>item.activateButtonRef?.current ? [
item.element,
item.activateButtonRef?.current
] : [
item.element
]),
...visibleDropTargets.flatMap((target)=>target.activateButtonRef?.current ? [
target.element,
target.activateButtonRef?.current
] : [
target.element
])
], {
shouldUseInert: true
});
this.mutationObserver.observe(document.body, {
subtree: true,
attributes: true,
attributeFilter: [
'aria-hidden',
'inert'
]
});
}
next() {
// TODO: Allow tabbing to the activate button. Revisit once we fix the focus ring.
// For now, the activate button is reachable by screen readers and ArrowLeft/ArrowRight
// is usable specifically by Tree. Will need tabbing for other components.
// let activateButton = this.getCurrentActivateButton();
// if (activateButton && document.activeElement !== activateButton) {
// activateButton.focus();
// return;
// }
if (!this.currentDropTarget) {
this.setCurrentDropTarget(this.validDropTargets[0]);
return;
}
let index = this.validDropTargets.indexOf(this.currentDropTarget);
if (index < 0) {
this.setCurrentDropTarget(this.validDropTargets[0]);
return;
}
// If we've reached the end of the valid drop targets, cycle back to the original drag target.
// This lets the user cancel the drag in case they don't have an Escape key (e.g. iPad keyboard case).
if (index === this.validDropTargets.length - 1) {
if (!this.dragTarget.element.closest('[aria-hidden="true"], [inert]')) {
this.setCurrentDropTarget(null);
this.dragTarget.element.focus();
} else this.setCurrentDropTarget(this.validDropTargets[0]);
} else this.setCurrentDropTarget(this.validDropTargets[index + 1]);
}
previous() {
// let activateButton = this.getCurrentActivateButton();
// if (activateButton && document.activeElement === activateButton) {
// let target = this.currentDropItem ?? this.currentDropTarget;
// if (target) {
// target.element.focus();
// return;
// }
// }
if (!this.currentDropTarget) {
this.setCurrentDropTarget(this.validDropTargets[this.validDropTargets.length - 1]);
return;
}
let index = this.validDropTargets.indexOf(this.currentDropTarget);
if (index < 0) {
this.setCurrentDropTarget(this.validDropTargets[this.validDropTargets.length - 1]);
return;
}
// If we've reached the start of the valid drop targets, cycle back to the original drag target.
// This lets the user cancel the drag in case they don't have an Escape key (e.g. iPad keyboard case).
if (index === 0) {
if (!this.dragTarget.element.closest('[aria-hidden="true"], [inert]')) {
this.setCurrentDropTarget(null);
this.dragTarget.element.focus();
} else this.setCurrentDropTarget(this.validDropTargets[this.validDropTargets.length - 1]);
} else this.setCurrentDropTarget(this.validDropTargets[index - 1]);
}
findNearestDropTarget() {
let dragTargetRect = this.dragTarget.element.getBoundingClientRect();
let minDistance = Infinity;
let nearest = -1;
for(let i = 0; i < this.validDropTargets.length; i++){
let dropTarget = this.validDropTargets[i];
let rect = dropTarget.element.getBoundingClientRect();
let dx = rect.left - dragTargetRect.left;
let dy = rect.top - dragTargetRect.top;
let dist = dx * dx + dy * dy;
if (dist < minDistance) {
minDistance = dist;
nearest = i;
}
}
return nearest;
}
setCurrentDropTarget(dropTarget, item) {
if (dropTarget !== this.currentDropTarget) {
if (this.currentDropTarget && typeof this.currentDropTarget.onDropExit === 'function') {
let rect = this.currentDropTarget.element.getBoundingClientRect();
this.currentDropTarget.onDropExit({
type: 'dropexit',
x: rect.left + rect.width / 2,
y: rect.top + rect.height / 2
});
}
this.currentDropTarget = dropTarget;
if (dropTarget) {
if (typeof dropTarget.onDropEnter === 'function') {
let rect = dropTarget.element.getBoundingClientRect();
dropTarget.onDropEnter({
type: 'dropenter',
x: rect.left + rect.width / 2,
y: rect.top + rect.height / 2
}, this.dragTarget);
}
if (!item) dropTarget?.element.focus();
}
}
if (item != null && item !== this.currentDropItem) {
if (this.currentDropTarget && typeof this.currentDropTarget.onDropTargetEnter === 'function') this.currentDropTarget.onDropTargetEnter(item.target);
item.element.focus();
this.currentDropItem = item;
// Announce first drop target after drag start announcement finishes.
// Otherwise, it will never get announced because drag start announcement is assertive.
if (!this.initialFocused) {
let label = item?.element.getAttribute('aria-label');
if (label) (0, $74b2c5b1e7ea9589$exports.announce)(label, 'polite');
this.initialFocused = true;
}
}
}
end() {
this.teardown();
$7394b2797bc2343d$var$endDragging();
if (typeof this.dragTarget.onDragEnd === 'function') {
let target = this.currentDropTarget && this.dropOperation !== 'cancel' ? this.currentDropTarget : this.dragTarget;
let rect = target.element.getBoundingClientRect();
this.dragTarget.onDragEnd({
type: 'dragend',
x: rect.x + rect.width / 2,
y: rect.y + rect.height / 2,
dropOperation: this.dropOperation || 'cancel'
});
}
if (this.currentDropTarget && !this.currentDropTarget.preventFocusOnDrop) // Re-trigger focus event on active element, since it will not have received it during dragging (see cancelEvent).
// This corrects state such as whether focus ring should appear.
// useDroppableCollection handles this itself, so this is only for standalone drop zones.
(0, $da02ee888921bc9e$exports.getActiveElement)()?.dispatchEvent(new FocusEvent('focusin', {
bubbles: true
}));
this.setCurrentDropTarget(null);
}
cancel() {
this.setCurrentDropTarget(null);
this.end();
if (!this.dragTarget.element.closest('[aria-hidden="true"], [inert]')) this.dragTarget.element.focus();
// Re-trigger focus event on active element, since it will not have received it during dragging (see cancelEvent).
(0, $da02ee888921bc9e$exports.getActiveElement)()?.dispatchEvent(new FocusEvent('focusin', {
bubbles: true
}));
(0, $74b2c5b1e7ea9589$exports.announce)(this.stringFormatter.format('dropCanceled'));
}
drop(item) {
if (!this.currentDropTarget) {
this.cancel();
return;
}
if (typeof item?.getDropOperation === 'function') {
let types = (0, $c67ff3d36836a1c1$exports.getTypes)(this.dragTarget.items);
this.dropOperation = item.getDropOperation(types, this.dragTarget.allowedDropOperations);
} else if (typeof this.currentDropTarget.getDropOperation === 'function') {
let types = (0, $c67ff3d36836a1c1$exports.getTypes)(this.dragTarget.items);
this.dropOperation = this.currentDropTarget.getDropOperation(types, this.dragTarget.allowedDropOperations);
} else // TODO: show menu ??
this.dropOperation = this.dragTarget.allowedDropOperations[0];
if (typeof this.currentDropTarget.onDrop === 'function') {
let items = this.dragTarget.items.map((item)=>({
kind: 'text',
types: new Set(Object.keys(item)),
getText: (type)=>Promise.resolve(item[type])
}));
let rect = this.currentDropTarget.element.getBoundingClientRect();
this.currentDropTarget.onDrop({
type: 'drop',
x: rect.left + rect.width / 2,
y: rect.top + rect.height / 2,
items: items,
dropOperation: this.dropOperation
}, item?.target ?? null);
}
this.end();
(0, $74b2c5b1e7ea9589$exports.announce)(this.stringFormatter.format('dropComplete'));
}
activate(dropTarget, dropItem) {
if (dropTarget && typeof dropTarget.onDropActivate === 'function') {
let target = dropItem?.target ?? null;
let rect = dropTarget.element.getBoundingClientRect();
dropTarget.onDropActivate({
type: 'dropactivate',
x: rect.left + rect.width / 2,
y: rect.top + rect.height / 2
}, target);
}
}
}
function $7394b2797bc2343d$var$findValidDropTargets(options) {
let types = (0, $c67ff3d36836a1c1$exports.getTypes)(options.items);
return [
...$7394b2797bc2343d$var$dropTargets.values()
].filter((target)=>{
if (target.element.closest('[aria-hidden="true"], [inert]')) return false;
if (typeof target.getDropOperation === 'function') return target.getDropOperation(types, options.allowedDropOperations) !== 'cancel';
return true;
});
}
//# sourceMappingURL=DragManager.cjs.map