update fullcalendar to version 4.4.2

1 files changed, 2141 insertions, 0 deletions

diff --git a/library/fullcalendar/packages/interaction/main.esm.js b/library/fullcalendar/packages/interaction/main.esm.js
new file mode 100644
index 000000000..af9ef4074
--- /dev/null
+++ b/library/fullcalendar/packages/interaction/main.esm.js
@@ -0,0 +1,2141 @@
+/*!
+FullCalendar Interaction Plugin v4.4.2
+Docs & License: https://fullcalendar.io/
+(c) 2019 Adam Shaw
+*/
+
+import { config, elementClosest, EmitterMixin, applyStyle, whenTransitionDone, removeElement, ScrollController, ElementScrollController, computeInnerRect, WindowScrollController, preventSelection, preventContextMenu, allowSelection, allowContextMenu, ElementDragging, computeRect, getClippingParents, pointInsideRect, isDateSpansEqual, constrainPoint, intersectRects, getRectCenter, diffPoints, mapHash, rangeContainsRange, interactionSettingsToStore, Interaction, enableCursor, disableCursor, compareNumbers, getElSeg, getRelevantEvents, EventApi, createEmptyEventStore, applyMutationToEventStore, interactionSettingsStore, startOfDay, diffDates, createDuration, eventTupleToStore, isInteractionValid, parseDragMeta, elementMatches, parseEventDef, createEventInstance, globalDefaults, createPlugin } from '@fullcalendar/core';
+
+/*! *****************************************************************************

+Copyright (c) Microsoft Corporation.

+

+Permission to use, copy, modify, and/or distribute this software for any

+purpose with or without fee is hereby granted.

+

+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH

+REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY

+AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,

+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM

+LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR

+OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR

+PERFORMANCE OF THIS SOFTWARE.

+***************************************************************************** */

+/* global Reflect, Promise */

+

+var extendStatics = function(d, b) {

+    extendStatics = Object.setPrototypeOf ||

+        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||

+        function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };

+    return extendStatics(d, b);

+};

+

+function __extends(d, b) {

+    extendStatics(d, b);

+    function __() { this.constructor = d; }

+    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());

+}

+

+var __assign = function() {

+    __assign = Object.assign || function __assign(t) {

+        for (var s, i = 1, n = arguments.length; i < n; i++) {

+            s = arguments[i];

+            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];

+        }

+        return t;

+    };

+    return __assign.apply(this, arguments);

+};
+
+config.touchMouseIgnoreWait = 500;
+var ignoreMouseDepth = 0;
+var listenerCnt = 0;
+var isWindowTouchMoveCancelled = false;
+/*
+Uses a "pointer" abstraction, which monitors UI events for both mouse and touch.
+Tracks when the pointer "drags" on a certain element, meaning down+move+up.
+
+Also, tracks if there was touch-scrolling.
+Also, can prevent touch-scrolling from happening.
+Also, can fire pointermove events when scrolling happens underneath, even when no real pointer movement.
+
+emits:
+- pointerdown
+- pointermove
+- pointerup
+*/
+var PointerDragging = /** @class */ (function () {
+    function PointerDragging(containerEl) {
+        var _this = this;
+        this.subjectEl = null;
+        this.downEl = null;
+        // options that can be directly assigned by caller
+        this.selector = ''; // will cause subjectEl in all emitted events to be this element
+        this.handleSelector = '';
+        this.shouldIgnoreMove = false;
+        this.shouldWatchScroll = true; // for simulating pointermove on scroll
+        // internal states
+        this.isDragging = false;
+        this.isTouchDragging = false;
+        this.wasTouchScroll = false;
+        // Mouse
+        // ----------------------------------------------------------------------------------------------------
+        this.handleMouseDown = function (ev) {
+            if (!_this.shouldIgnoreMouse() &&
+                isPrimaryMouseButton(ev) &&
+                _this.tryStart(ev)) {
+                var pev = _this.createEventFromMouse(ev, true);
+                _this.emitter.trigger('pointerdown', pev);
+                _this.initScrollWatch(pev);
+                if (!_this.shouldIgnoreMove) {
+                    document.addEventListener('mousemove', _this.handleMouseMove);
+                }
+                document.addEventListener('mouseup', _this.handleMouseUp);
+            }
+        };
+        this.handleMouseMove = function (ev) {
+            var pev = _this.createEventFromMouse(ev);
+            _this.recordCoords(pev);
+            _this.emitter.trigger('pointermove', pev);
+        };
+        this.handleMouseUp = function (ev) {
+            document.removeEventListener('mousemove', _this.handleMouseMove);
+            document.removeEventListener('mouseup', _this.handleMouseUp);
+            _this.emitter.trigger('pointerup', _this.createEventFromMouse(ev));
+            _this.cleanup(); // call last so that pointerup has access to props
+        };
+        // Touch
+        // ----------------------------------------------------------------------------------------------------
+        this.handleTouchStart = function (ev) {
+            if (_this.tryStart(ev)) {
+                _this.isTouchDragging = true;
+                var pev = _this.createEventFromTouch(ev, true);
+                _this.emitter.trigger('pointerdown', pev);
+                _this.initScrollWatch(pev);
+                // unlike mouse, need to attach to target, not document
+                // https://stackoverflow.com/a/45760014
+                var target = ev.target;
+                if (!_this.shouldIgnoreMove) {
+                    target.addEventListener('touchmove', _this.handleTouchMove);
+                }
+                target.addEventListener('touchend', _this.handleTouchEnd);
+                target.addEventListener('touchcancel', _this.handleTouchEnd); // treat it as a touch end
+                // attach a handler to get called when ANY scroll action happens on the page.
+                // this was impossible to do with normal on/off because 'scroll' doesn't bubble.
+                // http://stackoverflow.com/a/32954565/96342
+                window.addEventListener('scroll', _this.handleTouchScroll, true // useCapture
+                );
+            }
+        };
+        this.handleTouchMove = function (ev) {
+            var pev = _this.createEventFromTouch(ev);
+            _this.recordCoords(pev);
+            _this.emitter.trigger('pointermove', pev);
+        };
+        this.handleTouchEnd = function (ev) {
+            if (_this.isDragging) { // done to guard against touchend followed by touchcancel
+                var target = ev.target;
+                target.removeEventListener('touchmove', _this.handleTouchMove);
+                target.removeEventListener('touchend', _this.handleTouchEnd);
+                target.removeEventListener('touchcancel', _this.handleTouchEnd);
+                window.removeEventListener('scroll', _this.handleTouchScroll, true); // useCaptured=true
+                _this.emitter.trigger('pointerup', _this.createEventFromTouch(ev));
+                _this.cleanup(); // call last so that pointerup has access to props
+                _this.isTouchDragging = false;
+                startIgnoringMouse();
+            }
+        };
+        this.handleTouchScroll = function () {
+            _this.wasTouchScroll = true;
+        };
+        this.handleScroll = function (ev) {
+            if (!_this.shouldIgnoreMove) {
+                var pageX = (window.pageXOffset - _this.prevScrollX) + _this.prevPageX;
+                var pageY = (window.pageYOffset - _this.prevScrollY) + _this.prevPageY;
+                _this.emitter.trigger('pointermove', {
+                    origEvent: ev,
+                    isTouch: _this.isTouchDragging,
+                    subjectEl: _this.subjectEl,
+                    pageX: pageX,
+                    pageY: pageY,
+                    deltaX: pageX - _this.origPageX,
+                    deltaY: pageY - _this.origPageY
+                });
+            }
+        };
+        this.containerEl = containerEl;
+        this.emitter = new EmitterMixin();
+        containerEl.addEventListener('mousedown', this.handleMouseDown);
+        containerEl.addEventListener('touchstart', this.handleTouchStart, { passive: true });
+        listenerCreated();
+    }
+    PointerDragging.prototype.destroy = function () {
+        this.containerEl.removeEventListener('mousedown', this.handleMouseDown);
+        this.containerEl.removeEventListener('touchstart', this.handleTouchStart, { passive: true });
+        listenerDestroyed();
+    };
+    PointerDragging.prototype.tryStart = function (ev) {
+        var subjectEl = this.querySubjectEl(ev);
+        var downEl = ev.target;
+        if (subjectEl &&
+            (!this.handleSelector || elementClosest(downEl, this.handleSelector))) {
+            this.subjectEl = subjectEl;
+            this.downEl = downEl;
+            this.isDragging = true; // do this first so cancelTouchScroll will work
+            this.wasTouchScroll = false;
+            return true;
+        }
+        return false;
+    };
+    PointerDragging.prototype.cleanup = function () {
+        isWindowTouchMoveCancelled = false;
+        this.isDragging = false;
+        this.subjectEl = null;
+        this.downEl = null;
+        // keep wasTouchScroll around for later access
+        this.destroyScrollWatch();
+    };
+    PointerDragging.prototype.querySubjectEl = function (ev) {
+        if (this.selector) {
+            return elementClosest(ev.target, this.selector);
+        }
+        else {
+            return this.containerEl;
+        }
+    };
+    PointerDragging.prototype.shouldIgnoreMouse = function () {
+        return ignoreMouseDepth || this.isTouchDragging;
+    };
+    // can be called by user of this class, to cancel touch-based scrolling for the current drag
+    PointerDragging.prototype.cancelTouchScroll = function () {
+        if (this.isDragging) {
+            isWindowTouchMoveCancelled = true;
+        }
+    };
+    // Scrolling that simulates pointermoves
+    // ----------------------------------------------------------------------------------------------------
+    PointerDragging.prototype.initScrollWatch = function (ev) {
+        if (this.shouldWatchScroll) {
+            this.recordCoords(ev);
+            window.addEventListener('scroll', this.handleScroll, true); // useCapture=true
+        }
+    };
+    PointerDragging.prototype.recordCoords = function (ev) {
+        if (this.shouldWatchScroll) {
+            this.prevPageX = ev.pageX;
+            this.prevPageY = ev.pageY;
+            this.prevScrollX = window.pageXOffset;
+            this.prevScrollY = window.pageYOffset;
+        }
+    };
+    PointerDragging.prototype.destroyScrollWatch = function () {
+        if (this.shouldWatchScroll) {
+            window.removeEventListener('scroll', this.handleScroll, true); // useCaptured=true
+        }
+    };
+    // Event Normalization
+    // ----------------------------------------------------------------------------------------------------
+    PointerDragging.prototype.createEventFromMouse = function (ev, isFirst) {
+        var deltaX = 0;
+        var deltaY = 0;
+        // TODO: repeat code
+        if (isFirst) {
+            this.origPageX = ev.pageX;
+            this.origPageY = ev.pageY;
+        }
+        else {
+            deltaX = ev.pageX - this.origPageX;
+            deltaY = ev.pageY - this.origPageY;
+        }
+        return {
+            origEvent: ev,
+            isTouch: false,
+            subjectEl: this.subjectEl,
+            pageX: ev.pageX,
+            pageY: ev.pageY,
+            deltaX: deltaX,
+            deltaY: deltaY
+        };
+    };
+    PointerDragging.prototype.createEventFromTouch = function (ev, isFirst) {
+        var touches = ev.touches;
+        var pageX;
+        var pageY;
+        var deltaX = 0;
+        var deltaY = 0;
+        // if touch coords available, prefer,
+        // because FF would give bad ev.pageX ev.pageY
+        if (touches && touches.length) {
+            pageX = touches[0].pageX;
+            pageY = touches[0].pageY;
+        }
+        else {
+            pageX = ev.pageX;
+            pageY = ev.pageY;
+        }
+        // TODO: repeat code
+        if (isFirst) {
+            this.origPageX = pageX;
+            this.origPageY = pageY;
+        }
+        else {
+            deltaX = pageX - this.origPageX;
+            deltaY = pageY - this.origPageY;
+        }
+        return {
+            origEvent: ev,
+            isTouch: true,
+            subjectEl: this.subjectEl,
+            pageX: pageX,
+            pageY: pageY,
+            deltaX: deltaX,
+            deltaY: deltaY
+        };
+    };
+    return PointerDragging;
+}());
+// Returns a boolean whether this was a left mouse click and no ctrl key (which means right click on Mac)
+function isPrimaryMouseButton(ev) {
+    return ev.button === 0 && !ev.ctrlKey;
+}
+// Ignoring fake mouse events generated by touch
+// ----------------------------------------------------------------------------------------------------
+function startIgnoringMouse() {
+    ignoreMouseDepth++;
+    setTimeout(function () {
+        ignoreMouseDepth--;
+    }, config.touchMouseIgnoreWait);
+}
+// We want to attach touchmove as early as possible for Safari
+// ----------------------------------------------------------------------------------------------------
+function listenerCreated() {
+    if (!(listenerCnt++)) {
+        window.addEventListener('touchmove', onWindowTouchMove, { passive: false });
+    }
+}
+function listenerDestroyed() {
+    if (!(--listenerCnt)) {
+        window.removeEventListener('touchmove', onWindowTouchMove, { passive: false });
+    }
+}
+function onWindowTouchMove(ev) {
+    if (isWindowTouchMoveCancelled) {
+        ev.preventDefault();
+    }
+}
+
+/*
+An effect in which an element follows the movement of a pointer across the screen.
+The moving element is a clone of some other element.
+Must call start + handleMove + stop.
+*/
+var ElementMirror = /** @class */ (function () {
+    function ElementMirror() {
+        this.isVisible = false; // must be explicitly enabled
+        this.sourceEl = null;
+        this.mirrorEl = null;
+        this.sourceElRect = null; // screen coords relative to viewport
+        // options that can be set directly by caller
+        this.parentNode = document.body;
+        this.zIndex = 9999;
+        this.revertDuration = 0;
+    }
+    ElementMirror.prototype.start = function (sourceEl, pageX, pageY) {
+        this.sourceEl = sourceEl;
+        this.sourceElRect = this.sourceEl.getBoundingClientRect();
+        this.origScreenX = pageX - window.pageXOffset;
+        this.origScreenY = pageY - window.pageYOffset;
+        this.deltaX = 0;
+        this.deltaY = 0;
+        this.updateElPosition();
+    };
+    ElementMirror.prototype.handleMove = function (pageX, pageY) {
+        this.deltaX = (pageX - window.pageXOffset) - this.origScreenX;
+        this.deltaY = (pageY - window.pageYOffset) - this.origScreenY;
+        this.updateElPosition();
+    };
+    // can be called before start
+    ElementMirror.prototype.setIsVisible = function (bool) {
+        if (bool) {
+            if (!this.isVisible) {
+                if (this.mirrorEl) {
+                    this.mirrorEl.style.display = '';
+                }
+                this.isVisible = bool; // needs to happen before updateElPosition
+                this.updateElPosition(); // because was not updating the position while invisible
+            }
+        }
+        else {
+            if (this.isVisible) {
+                if (this.mirrorEl) {
+                    this.mirrorEl.style.display = 'none';
+                }
+                this.isVisible = bool;
+            }
+        }
+    };
+    // always async
+    ElementMirror.prototype.stop = function (needsRevertAnimation, callback) {
+        var _this = this;
+        var done = function () {
+            _this.cleanup();
+            callback();
+        };
+        if (needsRevertAnimation &&
+            this.mirrorEl &&
+            this.isVisible &&
+            this.revertDuration && // if 0, transition won't work
+            (this.deltaX || this.deltaY) // if same coords, transition won't work
+        ) {
+            this.doRevertAnimation(done, this.revertDuration);
+        }
+        else {
+            setTimeout(done, 0);
+        }
+    };
+    ElementMirror.prototype.doRevertAnimation = function (callback, revertDuration) {
+        var mirrorEl = this.mirrorEl;
+        var finalSourceElRect = this.sourceEl.getBoundingClientRect(); // because autoscrolling might have happened
+        mirrorEl.style.transition =
+            'top ' + revertDuration + 'ms,' +
+                'left ' + revertDuration + 'ms';
+        applyStyle(mirrorEl, {
+            left: finalSourceElRect.left,
+            top: finalSourceElRect.top
+        });
+        whenTransitionDone(mirrorEl, function () {
+            mirrorEl.style.transition = '';
+            callback();
+        });
+    };
+    ElementMirror.prototype.cleanup = function () {
+        if (this.mirrorEl) {
+            removeElement(this.mirrorEl);
+            this.mirrorEl = null;
+        }
+        this.sourceEl = null;
+    };
+    ElementMirror.prototype.updateElPosition = function () {
+        if (this.sourceEl && this.isVisible) {
+            applyStyle(this.getMirrorEl(), {
+                left: this.sourceElRect.left + this.deltaX,
+                top: this.sourceElRect.top + this.deltaY
+            });
+        }
+    };
+    ElementMirror.prototype.getMirrorEl = function () {
+        var sourceElRect = this.sourceElRect;
+        var mirrorEl = this.mirrorEl;
+        if (!mirrorEl) {
+            mirrorEl = this.mirrorEl = this.sourceEl.cloneNode(true); // cloneChildren=true
+            // we don't want long taps or any mouse interaction causing selection/menus.
+            // would use preventSelection(), but that prevents selectstart, causing problems.
+            mirrorEl.classList.add('fc-unselectable');
+            mirrorEl.classList.add('fc-dragging');
+            applyStyle(mirrorEl, {
+                position: 'fixed',
+                zIndex: this.zIndex,
+                visibility: '',
+                boxSizing: 'border-box',
+                width: sourceElRect.right - sourceElRect.left,
+                height: sourceElRect.bottom - sourceElRect.top,
+                right: 'auto',
+                bottom: 'auto',
+                margin: 0
+            });
+            this.parentNode.appendChild(mirrorEl);
+        }
+        return mirrorEl;
+    };
+    return ElementMirror;
+}());
+
+/*
+Is a cache for a given element's scroll information (all the info that ScrollController stores)
+in addition the "client rectangle" of the element.. the area within the scrollbars.
+
+The cache can be in one of two modes:
+- doesListening:false - ignores when the container is scrolled by someone else
+- doesListening:true - watch for scrolling and update the cache
+*/
+var ScrollGeomCache = /** @class */ (function (_super) {
+    __extends(ScrollGeomCache, _super);
+    function ScrollGeomCache(scrollController, doesListening) {
+        var _this = _super.call(this) || this;
+        _this.handleScroll = function () {
+            _this.scrollTop = _this.scrollController.getScrollTop();
+            _this.scrollLeft = _this.scrollController.getScrollLeft();
+            _this.handleScrollChange();
+        };
+        _this.scrollController = scrollController;
+        _this.doesListening = doesListening;
+        _this.scrollTop = _this.origScrollTop = scrollController.getScrollTop();
+        _this.scrollLeft = _this.origScrollLeft = scrollController.getScrollLeft();
+        _this.scrollWidth = scrollController.getScrollWidth();
+        _this.scrollHeight = scrollController.getScrollHeight();
+        _this.clientWidth = scrollController.getClientWidth();
+        _this.clientHeight = scrollController.getClientHeight();
+        _this.clientRect = _this.computeClientRect(); // do last in case it needs cached values
+        if (_this.doesListening) {
+            _this.getEventTarget().addEventListener('scroll', _this.handleScroll);
+        }
+        return _this;
+    }
+    ScrollGeomCache.prototype.destroy = function () {
+        if (this.doesListening) {
+            this.getEventTarget().removeEventListener('scroll', this.handleScroll);
+        }
+    };
+    ScrollGeomCache.prototype.getScrollTop = function () {
+        return this.scrollTop;
+    };
+    ScrollGeomCache.prototype.getScrollLeft = function () {
+        return this.scrollLeft;
+    };
+    ScrollGeomCache.prototype.setScrollTop = function (top) {
+        this.scrollController.setScrollTop(top);
+        if (!this.doesListening) {
+            // we are not relying on the element to normalize out-of-bounds scroll values
+            // so we need to sanitize ourselves
+            this.scrollTop = Math.max(Math.min(top, this.getMaxScrollTop()), 0);
+            this.handleScrollChange();
+        }
+    };
+    ScrollGeomCache.prototype.setScrollLeft = function (top) {
+        this.scrollController.setScrollLeft(top);
+        if (!this.doesListening) {
+            // we are not relying on the element to normalize out-of-bounds scroll values
+            // so we need to sanitize ourselves
+            this.scrollLeft = Math.max(Math.min(top, this.getMaxScrollLeft()), 0);
+            this.handleScrollChange();
+        }
+    };
+    ScrollGeomCache.prototype.getClientWidth = function () {
+        return this.clientWidth;
+    };
+    ScrollGeomCache.prototype.getClientHeight = function () {
+        return this.clientHeight;
+    };
+    ScrollGeomCache.prototype.getScrollWidth = function () {
+        return this.scrollWidth;
+    };
+    ScrollGeomCache.prototype.getScrollHeight = function () {
+        return this.scrollHeight;
+    };
+    ScrollGeomCache.prototype.handleScrollChange = function () {
+    };
+    return ScrollGeomCache;
+}(ScrollController));
+var ElementScrollGeomCache = /** @class */ (function (_super) {
+    __extends(ElementScrollGeomCache, _super);
+    function ElementScrollGeomCache(el, doesListening) {
+        return _super.call(this, new ElementScrollController(el), doesListening) || this;
+    }
+    ElementScrollGeomCache.prototype.getEventTarget = function () {
+        return this.scrollController.el;
+    };
+    ElementScrollGeomCache.prototype.computeClientRect = function () {
+        return computeInnerRect(this.scrollController.el);
+    };
+    return ElementScrollGeomCache;
+}(ScrollGeomCache));
+var WindowScrollGeomCache = /** @class */ (function (_super) {
+    __extends(WindowScrollGeomCache, _super);
+    function WindowScrollGeomCache(doesListening) {
+        return _super.call(this, new WindowScrollController(), doesListening) || this;
+    }
+    WindowScrollGeomCache.prototype.getEventTarget = function () {
+        return window;
+    };
+    WindowScrollGeomCache.prototype.computeClientRect = function () {
+        return {
+            left: this.scrollLeft,
+            right: this.scrollLeft + this.clientWidth,
+            top: this.scrollTop,
+            bottom: this.scrollTop + this.clientHeight
+        };
+    };
+    // the window is the only scroll object that changes it's rectangle relative
+    // to the document's topleft as it scrolls
+    WindowScrollGeomCache.prototype.handleScrollChange = function () {
+        this.clientRect = this.computeClientRect();
+    };
+    return WindowScrollGeomCache;
+}(ScrollGeomCache));
+
+// If available we are using native "performance" API instead of "Date"
+// Read more about it on MDN:
+// https://developer.mozilla.org/en-US/docs/Web/API/Performance
+var getTime = typeof performance === 'function' ? performance.now : Date.now;
+/*
+For a pointer interaction, automatically scrolls certain scroll containers when the pointer
+approaches the edge.
+
+The caller must call start + handleMove + stop.
+*/
+var AutoScroller = /** @class */ (function () {
+    function AutoScroller() {
+        var _this = this;
+        // options that can be set by caller
+        this.isEnabled = true;
+        this.scrollQuery = [window, '.fc-scroller'];
+        this.edgeThreshold = 50; // pixels
+        this.maxVelocity = 300; // pixels per second
+        // internal state
+        this.pointerScreenX = null;
+        this.pointerScreenY = null;
+        this.isAnimating = false;
+        this.scrollCaches = null;
+        // protect against the initial pointerdown being too close to an edge and starting the scroll
+        this.everMovedUp = false;
+        this.everMovedDown = false;
+        this.everMovedLeft = false;
+        this.everMovedRight = false;
+        this.animate = function () {
+            if (_this.isAnimating) { // wasn't cancelled between animation calls
+                var edge = _this.computeBestEdge(_this.pointerScreenX + window.pageXOffset, _this.pointerScreenY + window.pageYOffset);
+                if (edge) {
+                    var now = getTime();
+                    _this.handleSide(edge, (now - _this.msSinceRequest) / 1000);
+                    _this.requestAnimation(now);
+                }
+                else {
+                    _this.isAnimating = false; // will stop animation
+                }
+            }
+        };
+    }
+    AutoScroller.prototype.start = function (pageX, pageY) {
+        if (this.isEnabled) {
+            this.scrollCaches = this.buildCaches();
+            this.pointerScreenX = null;
+            this.pointerScreenY = null;
+            this.everMovedUp = false;
+            this.everMovedDown = false;
+            this.everMovedLeft = false;
+            this.everMovedRight = false;
+            this.handleMove(pageX, pageY);
+        }
+    };
+    AutoScroller.prototype.handleMove = function (pageX, pageY) {
+        if (this.isEnabled) {
+            var pointerScreenX = pageX - window.pageXOffset;
+            var pointerScreenY = pageY - window.pageYOffset;
+            var yDelta = this.pointerScreenY === null ? 0 : pointerScreenY - this.pointerScreenY;
+            var xDelta = this.pointerScreenX === null ? 0 : pointerScreenX - this.pointerScreenX;
+            if (yDelta < 0) {
+                this.everMovedUp = true;
+            }
+            else if (yDelta > 0) {
+                this.everMovedDown = true;
+            }
+            if (xDelta < 0) {
+                this.everMovedLeft = true;
+            }
+            else if (xDelta > 0) {
+                this.everMovedRight = true;
+            }
+            this.pointerScreenX = pointerScreenX;
+            this.pointerScreenY = pointerScreenY;
+            if (!this.isAnimating) {
+                this.isAnimating = true;
+                this.requestAnimation(getTime());
+            }
+        }
+    };
+    AutoScroller.prototype.stop = function () {
+        if (this.isEnabled) {
+            this.isAnimating = false; // will stop animation
+            for (var _i = 0, _a = this.scrollCaches; _i < _a.length; _i++) {
+                var scrollCache = _a[_i];
+                scrollCache.destroy();
+            }
+            this.scrollCaches = null;
+        }
+    };
+    AutoScroller.prototype.requestAnimation = function (now) {
+        this.msSinceRequest = now;
+        requestAnimationFrame(this.animate);
+    };
+    AutoScroller.prototype.handleSide = function (edge, seconds) {
+        var scrollCache = edge.scrollCache;
+        var edgeThreshold = this.edgeThreshold;
+        var invDistance = edgeThreshold - edge.distance;
+        var velocity = // the closer to the edge, the faster we scroll
+         (invDistance * invDistance) / (edgeThreshold * edgeThreshold) * // quadratic
+            this.maxVelocity * seconds;
+        var sign = 1;
+        switch (edge.name) {
+            case 'left':
+                sign = -1;
+            // falls through
+            case 'right':
+                scrollCache.setScrollLeft(scrollCache.getScrollLeft() + velocity * sign);
+                break;
+            case 'top':
+                sign = -1;
+            // falls through
+            case 'bottom':
+                scrollCache.setScrollTop(scrollCache.getScrollTop() + velocity * sign);
+                break;
+        }
+    };
+    // left/top are relative to document topleft
+    AutoScroller.prototype.computeBestEdge = function (left, top) {
+        var edgeThreshold = this.edgeThreshold;
+        var bestSide = null;
+        for (var _i = 0, _a = this.scrollCaches; _i < _a.length; _i++) {
+            var scrollCache = _a[_i];
+            var rect = scrollCache.clientRect;
+            var leftDist = left - rect.left;
+            var rightDist = rect.right - left;
+            var topDist = top - rect.top;
+            var bottomDist = rect.bottom - top;
+            // completely within the rect?
+            if (leftDist >= 0 && rightDist >= 0 && topDist >= 0 && bottomDist >= 0) {
+                if (topDist <= edgeThreshold && this.everMovedUp && scrollCache.canScrollUp() &&
+                    (!bestSide || bestSide.distance > topDist)) {
+                    bestSide = { scrollCache: scrollCache, name: 'top', distance: topDist };
+                }
+                if (bottomDist <= edgeThreshold && this.everMovedDown && scrollCache.canScrollDown() &&
+                    (!bestSide || bestSide.distance > bottomDist)) {
+                    bestSide = { scrollCache: scrollCache, name: 'bottom', distance: bottomDist };
+                }
+                if (leftDist <= edgeThreshold && this.everMovedLeft && scrollCache.canScrollLeft() &&
+                    (!bestSide || bestSide.distance > leftDist)) {
+                    bestSide = { scrollCache: scrollCache, name: 'left', distance: leftDist };
+                }
+                if (rightDist <= edgeThreshold && this.everMovedRight && scrollCache.canScrollRight() &&
+                    (!bestSide || bestSide.distance > rightDist)) {
+                    bestSide = { scrollCache: scrollCache, name: 'right', distance: rightDist };
+                }
+            }
+        }
+        return bestSide;
+    };
+    AutoScroller.prototype.buildCaches = function () {
+        return this.queryScrollEls().map(function (el) {
+            if (el === window) {
+                return new WindowScrollGeomCache(false); // false = don't listen to user-generated scrolls
+            }
+            else {
+                return new ElementScrollGeomCache(el, false); // false = don't listen to user-generated scrolls
+            }
+        });
+    };
+    AutoScroller.prototype.queryScrollEls = function () {
+        var els = [];
+        for (var _i = 0, _a = this.scrollQuery; _i < _a.length; _i++) {
+            var query = _a[_i];
+            if (typeof query === 'object') {
+                els.push(query);
+            }
+            else {
+                els.push.apply(els, Array.prototype.slice.call(document.querySelectorAll(query)));
+            }
+        }
+        return els;
+    };
+    return AutoScroller;
+}());
+
+/*
+Monitors dragging on an element. Has a number of high-level features:
+- minimum distance required before dragging
+- minimum wait time ("delay") before dragging
+- a mirror element that follows the pointer
+*/
+var FeaturefulElementDragging = /** @class */ (function (_super) {
+    __extends(FeaturefulElementDragging, _super);
+    function FeaturefulElementDragging(containerEl) {
+        var _this = _super.call(this, containerEl) || this;
+        // options that can be directly set by caller
+        // the caller can also set the PointerDragging's options as well
+        _this.delay = null;
+        _this.minDistance = 0;
+        _this.touchScrollAllowed = true; // prevents drag from starting and blocks scrolling during drag
+        _this.mirrorNeedsRevert = false;
+        _this.isInteracting = false; // is the user validly moving the pointer? lasts until pointerup
+        _this.isDragging = false; // is it INTENTFULLY dragging? lasts until after revert animation
+        _this.isDelayEnded = false;
+        _this.isDistanceSurpassed = false;
+        _this.delayTimeoutId = null;
+        _this.onPointerDown = function (ev) {
+            if (!_this.isDragging) { // so new drag doesn't happen while revert animation is going
+                _this.isInteracting = true;
+                _this.isDelayEnded = false;
+                _this.isDistanceSurpassed = false;
+                preventSelection(document.body);
+                preventContextMenu(document.body);
+                // prevent links from being visited if there's an eventual drag.
+                // also prevents selection in older browsers (maybe?).
+                // not necessary for touch, besides, browser would complain about passiveness.
+                if (!ev.isTouch) {
+                    ev.origEvent.preventDefault();
+                }
+                _this.emitter.trigger('pointerdown', ev);
+                if (!_this.pointer.shouldIgnoreMove) {
+                    // actions related to initiating dragstart+dragmove+dragend...
+                    _this.mirror.setIsVisible(false); // reset. caller must set-visible
+                    _this.mirror.start(ev.subjectEl, ev.pageX, ev.pageY); // must happen on first pointer down
+                    _this.startDelay(ev);
+                    if (!_this.minDistance) {
+                        _this.handleDistanceSurpassed(ev);
+                    }
+                }
+            }
+        };
+        _this.onPointerMove = function (ev) {
+            if (_this.isInteracting) { // if false, still waiting for previous drag's revert
+                _this.emitter.trigger('pointermove', ev);
+                if (!_this.isDistanceSurpassed) {
+                    var minDistance = _this.minDistance;
+                    var distanceSq = void 0; // current distance from the origin, squared
+                    var deltaX = ev.deltaX, deltaY = ev.deltaY;
+                    distanceSq = deltaX * deltaX + deltaY * deltaY;
+                    if (distanceSq >= minDistance * minDistance) { // use pythagorean theorem
+                        _this.handleDistanceSurpassed(ev);
+                    }
+                }
+                if (_this.isDragging) {
+                    // a real pointer move? (not one simulated by scrolling)
+                    if (ev.origEvent.type !== 'scroll') {
+                        _this.mirror.handleMove(ev.pageX, ev.pageY);
+                        _this.autoScroller.handleMove(ev.pageX, ev.pageY);
+                    }
+                    _this.emitter.trigger('dragmove', ev);
+                }
+            }
+        };
+        _this.onPointerUp = function (ev) {
+            if (_this.isInteracting) { // if false, still waiting for previous drag's revert
+                _this.isInteracting = false;
+                allowSelection(document.body);
+                allowContextMenu(document.body);
+                _this.emitter.trigger('pointerup', ev); // can potentially set mirrorNeedsRevert
+                if (_this.isDragging) {
+                    _this.autoScroller.stop();
+                    _this.tryStopDrag(ev); // which will stop the mirror
+                }
+                if (_this.delayTimeoutId) {
+                    clearTimeout(_this.delayTimeoutId);
+                    _this.delayTimeoutId = null;
+                }
+            }
+        };
+        var pointer = _this.pointer = new PointerDragging(containerEl);
+        pointer.emitter.on('pointerdown', _this.onPointerDown);
+        pointer.emitter.on('pointermove', _this.onPointerMove);
+        pointer.emitter.on('pointerup', _this.onPointerUp);
+        _this.mirror = new ElementMirror();
+        _this.autoScroller = new AutoScroller();
+        return _this;
+    }
+    FeaturefulElementDragging.prototype.destroy = function () {
+        this.pointer.destroy();
+    };
+    FeaturefulElementDragging.prototype.startDelay = function (ev) {
+        var _this = this;
+        if (typeof this.delay === 'number') {
+            this.delayTimeoutId = setTimeout(function () {
+                _this.delayTimeoutId = null;
+                _this.handleDelayEnd(ev);
+            }, this.delay); // not assignable to number!
+        }
+        else {
+            this.handleDelayEnd(ev);
+        }
+    };
+    FeaturefulElementDragging.prototype.handleDelayEnd = function (ev) {
+        this.isDelayEnded = true;
+        this.tryStartDrag(ev);
+    };
+    FeaturefulElementDragging.prototype.handleDistanceSurpassed = function (ev) {
+        this.isDistanceSurpassed = true;
+        this.tryStartDrag(ev);
+    };
+    FeaturefulElementDragging.prototype.tryStartDrag = function (ev) {
+        if (this.isDelayEnded && this.isDistanceSurpassed) {
+            if (!this.pointer.wasTouchScroll || this.touchScrollAllowed) {
+                this.isDragging = true;
+                this.mirrorNeedsRevert = false;
+                this.autoScroller.start(ev.pageX, ev.pageY);
+                this.emitter.trigger('dragstart', ev);
+                if (this.touchScrollAllowed === false) {
+                    this.pointer.cancelTouchScroll();
+                }
+            }
+        }
+    };
+    FeaturefulElementDragging.prototype.tryStopDrag = function (ev) {
+        // .stop() is ALWAYS asynchronous, which we NEED because we want all pointerup events
+        // that come from the document to fire beforehand. much more convenient this way.
+        this.mirror.stop(this.mirrorNeedsRevert, this.stopDrag.bind(this, ev) // bound with args
+        );
+    };
+    FeaturefulElementDragging.prototype.stopDrag = function (ev) {
+        this.isDragging = false;
+        this.emitter.trigger('dragend', ev);
+    };
+    // fill in the implementations...
+    FeaturefulElementDragging.prototype.setIgnoreMove = function (bool) {
+        this.pointer.shouldIgnoreMove = bool;
+    };
+    FeaturefulElementDragging.prototype.setMirrorIsVisible = function (bool) {
+        this.mirror.setIsVisible(bool);
+    };
+    FeaturefulElementDragging.prototype.setMirrorNeedsRevert = function (bool) {
+        this.mirrorNeedsRevert = bool;
+    };
+    FeaturefulElementDragging.prototype.setAutoScrollEnabled = function (bool) {
+        this.autoScroller.isEnabled = bool;
+    };
+    return FeaturefulElementDragging;
+}(ElementDragging));
+
+/*
+When this class is instantiated, it records the offset of an element (relative to the document topleft),
+and continues to monitor scrolling, updating the cached coordinates if it needs to.
+Does not access the DOM after instantiation, so highly performant.
+
+Also keeps track of all scrolling/overflow:hidden containers that are parents of the given element
+and an determine if a given point is inside the combined clipping rectangle.
+*/
+var OffsetTracker = /** @class */ (function () {
+    function OffsetTracker(el) {
+        this.origRect = computeRect(el);
+        // will work fine for divs that have overflow:hidden
+        this.scrollCaches = getClippingParents(el).map(function (el) {
+            return new ElementScrollGeomCache(el, true); // listen=true
+        });
+    }
+    OffsetTracker.prototype.destroy = function () {
+        for (var _i = 0, _a = this.scrollCaches; _i < _a.length; _i++) {
+            var scrollCache = _a[_i];
+            scrollCache.destroy();
+        }
+    };
+    OffsetTracker.prototype.computeLeft = function () {
+        var left = this.origRect.left;
+        for (var _i = 0, _a = this.scrollCaches; _i < _a.length; _i++) {
+            var scrollCache = _a[_i];
+            left += scrollCache.origScrollLeft - scrollCache.getScrollLeft();
+        }
+        return left;
+    };
+    OffsetTracker.prototype.computeTop = function () {
+        var top = this.origRect.top;
+        for (var _i = 0, _a = this.scrollCaches; _i < _a.length; _i++) {
+            var scrollCache = _a[_i];
+            top += scrollCache.origScrollTop - scrollCache.getScrollTop();
+        }
+        return top;
+    };
+    OffsetTracker.prototype.isWithinClipping = function (pageX, pageY) {
+        var point = { left: pageX, top: pageY };
+        for (var _i = 0, _a = this.scrollCaches; _i < _a.length; _i++) {
+            var scrollCache = _a[_i];
+            if (!isIgnoredClipping(scrollCache.getEventTarget()) &&
+                !pointInsideRect(point, scrollCache.clientRect)) {
+                return false;
+            }
+        }
+        return true;
+    };
+    return OffsetTracker;
+}());
+// certain clipping containers should never constrain interactions, like <html> and <body>
+// https://github.com/fullcalendar/fullcalendar/issues/3615
+function isIgnoredClipping(node) {
+    var tagName = node.tagName;
+    return tagName === 'HTML' || tagName === 'BODY';
+}
+
+/*
+Tracks movement over multiple droppable areas (aka "hits")
+that exist in one or more DateComponents.
+Relies on an existing draggable.
+
+emits:
+- pointerdown
+- dragstart
+- hitchange - fires initially, even if not over a hit
+- pointerup
+- (hitchange - again, to null, if ended over a hit)
+- dragend
+*/
+var HitDragging = /** @class */ (function () {
+    function HitDragging(dragging, droppableStore) {
+        var _this = this;
+        // options that can be set by caller
+        this.useSubjectCenter = false;
+        this.requireInitial = true; // if doesn't start out on a hit, won't emit any events
+        this.initialHit = null;
+        this.movingHit = null;
+        this.finalHit = null; // won't ever be populated if shouldIgnoreMove
+        this.handlePointerDown = function (ev) {
+            var dragging = _this.dragging;
+            _this.initialHit = null;
+            _this.movingHit = null;
+            _this.finalHit = null;
+            _this.prepareHits();
+            _this.processFirstCoord(ev);
+            if (_this.initialHit || !_this.requireInitial) {
+                dragging.setIgnoreMove(false);
+                _this.emitter.trigger('pointerdown', ev); // TODO: fire this before computing processFirstCoord, so listeners can cancel. this gets fired by almost every handler :(
+            }
+            else {
+                dragging.setIgnoreMove(true);
+            }
+        };
+        this.handleDragStart = function (ev) {
+            _this.emitter.trigger('dragstart', ev);
+            _this.handleMove(ev, true); // force = fire even if initially null
+        };
+        this.handleDragMove = function (ev) {
+            _this.emitter.trigger('dragmove', ev);
+            _this.handleMove(ev);
+        };
+        this.handlePointerUp = function (ev) {
+            _this.releaseHits();
+            _this.emitter.trigger('pointerup', ev);
+        };
+        this.handleDragEnd = function (ev) {
+            if (_this.movingHit) {
+                _this.emitter.trigger('hitupdate', null, true, ev);
+            }
+            _this.finalHit = _this.movingHit;
+            _this.movingHit = null;
+            _this.emitter.trigger('dragend', ev);
+        };
+        this.droppableStore = droppableStore;
+        dragging.emitter.on('pointerdown', this.handlePointerDown);
+        dragging.emitter.on('dragstart', this.handleDragStart);
+        dragging.emitter.on('dragmove', this.handleDragMove);
+        dragging.emitter.on('pointerup', this.handlePointerUp);
+        dragging.emitter.on('dragend', this.handleDragEnd);
+        this.dragging = dragging;
+        this.emitter = new EmitterMixin();
+    }
+    // sets initialHit
+    // sets coordAdjust
+    HitDragging.prototype.processFirstCoord = function (ev) {
+        var origPoint = { left: ev.pageX, top: ev.pageY };
+        var adjustedPoint = origPoint;
+        var subjectEl = ev.subjectEl;
+        var subjectRect;
+        if (subjectEl !== document) {
+            subjectRect = computeRect(subjectEl);
+            adjustedPoint = constrainPoint(adjustedPoint, subjectRect);
+        }
+        var initialHit = this.initialHit = this.queryHitForOffset(adjustedPoint.left, adjustedPoint.top);
+        if (initialHit) {
+            if (this.useSubjectCenter && subjectRect) {
+                var slicedSubjectRect = intersectRects(subjectRect, initialHit.rect);
+                if (slicedSubjectRect) {
+                    adjustedPoint = getRectCenter(slicedSubjectRect);
+                }
+            }
+            this.coordAdjust = diffPoints(adjustedPoint, origPoint);
+        }
+        else {
+            this.coordAdjust = { left: 0, top: 0 };
+        }
+    };
+    HitDragging.prototype.handleMove = function (ev, forceHandle) {
+        var hit = this.queryHitForOffset(ev.pageX + this.coordAdjust.left, ev.pageY + this.coordAdjust.top);
+        if (forceHandle || !isHitsEqual(this.movingHit, hit)) {
+            this.movingHit = hit;
+            this.emitter.trigger('hitupdate', hit, false, ev);
+        }
+    };
+    HitDragging.prototype.prepareHits = function () {
+        this.offsetTrackers = mapHash(this.droppableStore, function (interactionSettings) {
+            interactionSettings.component.buildPositionCaches();
+            return new OffsetTracker(interactionSettings.el);
+        });
+    };
+    HitDragging.prototype.releaseHits = function () {
+        var offsetTrackers = this.offsetTrackers;
+        for (var id in offsetTrackers) {
+            offsetTrackers[id].destroy();
+        }
+        this.offsetTrackers = {};
+    };
+    HitDragging.prototype.queryHitForOffset = function (offsetLeft, offsetTop) {
+        var _a = this, droppableStore = _a.droppableStore, offsetTrackers = _a.offsetTrackers;
+        var bestHit = null;
+        for (var id in droppableStore) {
+            var component = droppableStore[id].component;
+            var offsetTracker = offsetTrackers[id];
+            if (offsetTracker.isWithinClipping(offsetLeft, offsetTop)) {
+                var originLeft = offsetTracker.computeLeft();
+                var originTop = offsetTracker.computeTop();
+                var positionLeft = offsetLeft - originLeft;
+                var positionTop = offsetTop - originTop;
+                var origRect = offsetTracker.origRect;
+                var width = origRect.right - origRect.left;
+                var height = origRect.bottom - origRect.top;
+                if (
+                // must be within the element's bounds
+                positionLeft >= 0 && positionLeft < width &&
+                    positionTop >= 0 && positionTop < height) {
+                    var hit = component.queryHit(positionLeft, positionTop, width, height);
+                    if (hit &&
+                        (
+                        // make sure the hit is within activeRange, meaning it's not a deal cell
+                        !component.props.dateProfile || // hack for DayTile
+                            rangeContainsRange(component.props.dateProfile.activeRange, hit.dateSpan.range)) &&
+                        (!bestHit || hit.layer > bestHit.layer)) {
+                        // TODO: better way to re-orient rectangle
+                        hit.rect.left += originLeft;
+                        hit.rect.right += originLeft;
+                        hit.rect.top += originTop;
+                        hit.rect.bottom += originTop;
+                        bestHit = hit;
+                    }
+                }
+            }
+        }
+        return bestHit;
+    };
+    return HitDragging;
+}());
+function isHitsEqual(hit0, hit1) {
+    if (!hit0 && !hit1) {
+        return true;
+    }
+    if (Boolean(hit0) !== Boolean(hit1)) {
+        return false;
+    }
+    return isDateSpansEqual(hit0.dateSpan, hit1.dateSpan);
+}
+
+/*
+Monitors when the user clicks on a specific date/time of a component.
+A pointerdown+pointerup on the same "hit" constitutes a click.
+*/
+var DateClicking = /** @class */ (function (_super) {
+    __extends(DateClicking, _super);
+    function DateClicking(settings) {
+        var _this = _super.call(this, settings) || this;
+        _this.handlePointerDown = function (ev) {
+            var dragging = _this.dragging;
+            // do this in pointerdown (not dragend) because DOM might be mutated by the time dragend is fired
+            dragging.setIgnoreMove(!_this.component.isValidDateDownEl(dragging.pointer.downEl));
+        };
+        // won't even fire if moving was ignored
+        _this.handleDragEnd = function (ev) {
+            var component = _this.component;
+            var _a = component.context, calendar = _a.calendar, view = _a.view;
+            var pointer = _this.dragging.pointer;
+            if (!pointer.wasTouchScroll) {
+                var _b = _this.hitDragging, initialHit = _b.initialHit, finalHit = _b.finalHit;
+                if (initialHit && finalHit && isHitsEqual(initialHit, finalHit)) {
+                    calendar.triggerDateClick(initialHit.dateSpan, initialHit.dayEl, view, ev.origEvent);
+                }
+            }
+        };
+        var component = settings.component;
+        // we DO want to watch pointer moves because otherwise finalHit won't get populated
+        _this.dragging = new FeaturefulElementDragging(component.el);
+        _this.dragging.autoScroller.isEnabled = false;
+        var hitDragging = _this.hitDragging = new HitDragging(_this.dragging, interactionSettingsToStore(settings));
+        hitDragging.emitter.on('pointerdown', _this.handlePointerDown);
+        hitDragging.emitter.on('dragend', _this.handleDragEnd);
+        return _this;
+    }
+    DateClicking.prototype.destroy = function () {
+        this.dragging.destroy();
+    };
+    return DateClicking;
+}(Interaction));
+
+/*
+Tracks when the user selects a portion of time of a component,
+constituted by a drag over date cells, with a possible delay at the beginning of the drag.
+*/
+var DateSelecting = /** @class */ (function (_super) {
+    __extends(DateSelecting, _super);
+    function DateSelecting(settings) {
+        var _this = _super.call(this, settings) || this;
+        _this.dragSelection = null;
+        _this.handlePointerDown = function (ev) {
+            var _a = _this, component = _a.component, dragging = _a.dragging;
+            var options = component.context.options;
+            var canSelect = options.selectable &&
+                component.isValidDateDownEl(ev.origEvent.target);
+            // don't bother to watch expensive moves if component won't do selection
+            dragging.setIgnoreMove(!canSelect);
+            // if touch, require user to hold down
+            dragging.delay = ev.isTouch ? getComponentTouchDelay(component) : null;
+        };
+        _this.handleDragStart = function (ev) {
+            _this.component.context.calendar.unselect(ev); // unselect previous selections
+        };
+        _this.handleHitUpdate = function (hit, isFinal) {
+            var calendar = _this.component.context.calendar;
+            var dragSelection = null;
+            var isInvalid = false;
+            if (hit) {
+                dragSelection = joinHitsIntoSelection(_this.hitDragging.initialHit, hit, calendar.pluginSystem.hooks.dateSelectionTransformers);
+                if (!dragSelection || !_this.component.isDateSelectionValid(dragSelection)) {
+                    isInvalid = true;
+                    dragSelection = null;
+                }
+            }
+            if (dragSelection) {
+                calendar.dispatch({ type: 'SELECT_DATES', selection: dragSelection });
+            }
+            else if (!isFinal) { // only unselect if moved away while dragging
+                calendar.dispatch({ type: 'UNSELECT_DATES' });
+            }
+            if (!isInvalid) {
+                enableCursor();
+            }
+            else {
+                disableCursor();
+            }
+            if (!isFinal) {
+                _this.dragSelection = dragSelection; // only clear if moved away from all hits while dragging
+            }
+        };
+        _this.handlePointerUp = function (pev) {
+            if (_this.dragSelection) {
+                // selection is already rendered, so just need to report selection
+                _this.component.context.calendar.triggerDateSelect(_this.dragSelection, pev);
+                _this.dragSelection = null;
+            }
+        };
+        var component = settings.component;
+        var options = component.context.options;
+        var dragging = _this.dragging = new FeaturefulElementDragging(component.el);
+        dragging.touchScrollAllowed = false;
+        dragging.minDistance = options.selectMinDistance || 0;
+        dragging.autoScroller.isEnabled = options.dragScroll;
+        var hitDragging = _this.hitDragging = new HitDragging(_this.dragging, interactionSettingsToStore(settings));
+        hitDragging.emitter.on('pointerdown', _this.handlePointerDown);
+        hitDragging.emitter.on('dragstart', _this.handleDragStart);
+        hitDragging.emitter.on('hitupdate', _this.handleHitUpdate);
+        hitDragging.emitter.on('pointerup', _this.handlePointerUp);
+        return _this;
+    }
+    DateSelecting.prototype.destroy = function () {
+        this.dragging.destroy();
+    };
+    return DateSelecting;
+}(Interaction));
+function getComponentTouchDelay(component) {
+    var options = component.context.options;
+    var delay = options.selectLongPressDelay;
+    if (delay == null) {
+        delay = options.longPressDelay;
+    }
+    return delay;
+}
+function joinHitsIntoSelection(hit0, hit1, dateSelectionTransformers) {
+    var dateSpan0 = hit0.dateSpan;
+    var dateSpan1 = hit1.dateSpan;
+    var ms = [
+        dateSpan0.range.start,
+        dateSpan0.range.end,
+        dateSpan1.range.start,
+        dateSpan1.range.end
+    ];
+    ms.sort(compareNumbers);
+    var props = {};
+    for (var _i = 0, dateSelectionTransformers_1 = dateSelectionTransformers; _i < dateSelectionTransformers_1.length; _i++) {
+        var transformer = dateSelectionTransformers_1[_i];
+        var res = transformer(hit0, hit1);
+        if (res === false) {
+            return null;
+        }
+        else if (res) {
+            __assign(props, res);
+        }
+    }
+    props.range = { start: ms[0], end: ms[3] };
+    props.allDay = dateSpan0.allDay;
+    return props;
+}
+
+var EventDragging = /** @class */ (function (_super) {
+    __extends(EventDragging, _super);
+    function EventDragging(settings) {
+        var _this = _super.call(this, settings) || this;
+        // internal state
+        _this.subjectSeg = null; // the seg being selected/dragged
+        _this.isDragging = false;
+        _this.eventRange = null;
+        _this.relevantEvents = null; // the events being dragged
+        _this.receivingCalendar = null;
+        _this.validMutation = null;
+        _this.mutatedRelevantEvents = null;
+        _this.handlePointerDown = function (ev) {
+            var origTarget = ev.origEvent.target;
+            var _a = _this, component = _a.component, dragging = _a.dragging;
+            var mirror = dragging.mirror;
+            var options = component.context.options;
+            var initialCalendar = component.context.calendar;
+            var subjectSeg = _this.subjectSeg = getElSeg(ev.subjectEl);
+            var eventRange = _this.eventRange = subjectSeg.eventRange;
+            var eventInstanceId = eventRange.instance.instanceId;
+            _this.relevantEvents = getRelevantEvents(initialCalendar.state.eventStore, eventInstanceId);
+            dragging.minDistance = ev.isTouch ? 0 : options.eventDragMinDistance;
+            dragging.delay =
+                // only do a touch delay if touch and this event hasn't been selected yet
+                (ev.isTouch && eventInstanceId !== component.props.eventSelection) ?
+                    getComponentTouchDelay$1(component) :
+                    null;
+            mirror.parentNode = initialCalendar.el;
+            mirror.revertDuration = options.dragRevertDuration;
+            var isValid = component.isValidSegDownEl(origTarget) &&
+                !elementClosest(origTarget, '.fc-resizer'); // NOT on a resizer
+            dragging.setIgnoreMove(!isValid);
+            // disable dragging for elements that are resizable (ie, selectable)
+            // but are not draggable
+            _this.isDragging = isValid &&
+                ev.subjectEl.classList.contains('fc-draggable');
+        };
+        _this.handleDragStart = function (ev) {
+            var context = _this.component.context;
+            var initialCalendar = context.calendar;
+            var eventRange = _this.eventRange;
+            var eventInstanceId = eventRange.instance.instanceId;
+            if (ev.isTouch) {
+                // need to select a different event?
+                if (eventInstanceId !== _this.component.props.eventSelection) {
+                    initialCalendar.dispatch({ type: 'SELECT_EVENT', eventInstanceId: eventInstanceId });
+                }
+            }
+            else {
+                // if now using mouse, but was previous touch interaction, clear selected event
+                initialCalendar.dispatch({ type: 'UNSELECT_EVENT' });
+            }
+            if (_this.isDragging) {
+                initialCalendar.unselect(ev); // unselect *date* selection
+                initialCalendar.publiclyTrigger('eventDragStart', [
+                    {
+                        el: _this.subjectSeg.el,
+                        event: new EventApi(initialCalendar, eventRange.def, eventRange.instance),
+                        jsEvent: ev.origEvent,
+                        view: context.view
+                    }
+                ]);
+            }
+        };
+        _this.handleHitUpdate = function (hit, isFinal) {
+            if (!_this.isDragging) {
+                return;
+            }
+            var relevantEvents = _this.relevantEvents;
+            var initialHit = _this.hitDragging.initialHit;
+            var initialCalendar = _this.component.context.calendar;
+            // states based on new hit
+            var receivingCalendar = null;
+            var mutation = null;
+            var mutatedRelevantEvents = null;
+            var isInvalid = false;
+            var interaction = {
+                affectedEvents: relevantEvents,
+                mutatedEvents: createEmptyEventStore(),
+                isEvent: true,
+                origSeg: _this.subjectSeg
+            };
+            if (hit) {
+                var receivingComponent = hit.component;
+                receivingCalendar = receivingComponent.context.calendar;
+                var receivingOptions = receivingComponent.context.options;
+                if (initialCalendar === receivingCalendar ||
+                    receivingOptions.editable && receivingOptions.droppable) {
+                    mutation = computeEventMutation(initialHit, hit, receivingCalendar.pluginSystem.hooks.eventDragMutationMassagers);
+                    if (mutation) {
+                        mutatedRelevantEvents = applyMutationToEventStore(relevantEvents, receivingCalendar.eventUiBases, mutation, receivingCalendar);
+                        interaction.mutatedEvents = mutatedRelevantEvents;
+                        if (!receivingComponent.isInteractionValid(interaction)) {
+                            isInvalid = true;
+                            mutation = null;
+                            mutatedRelevantEvents = null;
+                            interaction.mutatedEvents = createEmptyEventStore();
+                        }
+                    }
+                }
+                else {
+                    receivingCalendar = null;
+                }
+            }
+            _this.displayDrag(receivingCalendar, interaction);
+            if (!isInvalid) {
+                enableCursor();
+            }
+            else {
+                disableCursor();
+            }
+            if (!isFinal) {
+                if (initialCalendar === receivingCalendar && // TODO: write test for this
+                    isHitsEqual(initialHit, hit)) {
+                    mutation = null;
+                }
+                _this.dragging.setMirrorNeedsRevert(!mutation);
+                // render the mirror if no already-rendered mirror
+                // TODO: wish we could somehow wait for dispatch to guarantee render
+                _this.dragging.setMirrorIsVisible(!hit || !document.querySelector('.fc-mirror'));
+                // assign states based on new hit
+                _this.receivingCalendar = receivingCalendar;
+                _this.validMutation = mutation;
+                _this.mutatedRelevantEvents = mutatedRelevantEvents;
+            }
+        };
+        _this.handlePointerUp = function () {
+            if (!_this.isDragging) {
+                _this.cleanup(); // because handleDragEnd won't fire
+            }
+        };
+        _this.handleDragEnd = function (ev) {
+            if (_this.isDragging) {
+                var context = _this.component.context;
+                var initialCalendar_1 = context.calendar;
+                var initialView = context.view;
+                var _a = _this, receivingCalendar = _a.receivingCalendar, validMutation = _a.validMutation;
+                var eventDef = _this.eventRange.def;
+                var eventInstance = _this.eventRange.instance;
+                var eventApi = new EventApi(initialCalendar_1, eventDef, eventInstance);
+                var relevantEvents_1 = _this.relevantEvents;
+                var mutatedRelevantEvents = _this.mutatedRelevantEvents;
+                var finalHit = _this.hitDragging.finalHit;
+                _this.clearDrag(); // must happen after revert animation
+                initialCalendar_1.publiclyTrigger('eventDragStop', [
+                    {
+                        el: _this.subjectSeg.el,
+                        event: eventApi,
+                        jsEvent: ev.origEvent,
+                        view: initialView
+                    }
+                ]);
+                if (validMutation) {
+                    // dropped within same calendar
+                    if (receivingCalendar === initialCalendar_1) {
+                        initialCalendar_1.dispatch({
+                            type: 'MERGE_EVENTS',
+                            eventStore: mutatedRelevantEvents
+                        });
+                        var transformed = {};
+                        for (var _i = 0, _b = initialCalendar_1.pluginSystem.hooks.eventDropTransformers; _i < _b.length; _i++) {
+                            var transformer = _b[_i];
+                            __assign(transformed, transformer(validMutation, initialCalendar_1));
+                        }
+                        var eventDropArg = __assign({}, transformed, { el: ev.subjectEl, delta: validMutation.datesDelta, oldEvent: eventApi, event: new EventApi(// the data AFTER the mutation
+                            initialCalendar_1, mutatedRelevantEvents.defs[eventDef.defId], eventInstance ? mutatedRelevantEvents.instances[eventInstance.instanceId] : null), revert: function () {
+                                initialCalendar_1.dispatch({
+                                    type: 'MERGE_EVENTS',
+                                    eventStore: relevantEvents_1
+                                });
+                            }, jsEvent: ev.origEvent, view: initialView });
+                        initialCalendar_1.publiclyTrigger('eventDrop', [eventDropArg]);
+                        // dropped in different calendar
+                    }
+                    else if (receivingCalendar) {
+                        initialCalendar_1.publiclyTrigger('eventLeave', [
+                            {
+                                draggedEl: ev.subjectEl,
+                                event: eventApi,
+                                view: initialView
+                            }
+                        ]);
+                        initialCalendar_1.dispatch({
+                            type: 'REMOVE_EVENT_INSTANCES',
+                            instances: _this.mutatedRelevantEvents.instances
+                        });
+                        receivingCalendar.dispatch({
+                            type: 'MERGE_EVENTS',
+                            eventStore: _this.mutatedRelevantEvents
+                        });
+                        if (ev.isTouch) {
+                            receivingCalendar.dispatch({
+                                type: 'SELECT_EVENT',
+                                eventInstanceId: eventInstance.instanceId
+                            });
+                        }
+                        var dropArg = __assign({}, receivingCalendar.buildDatePointApi(finalHit.dateSpan), { draggedEl: ev.subjectEl, jsEvent: ev.origEvent, view: finalHit.component // should this be finalHit.component.view? See #4644
+                         });
+                        receivingCalendar.publiclyTrigger('drop', [dropArg]);
+                        receivingCalendar.publiclyTrigger('eventReceive', [
+                            {
+                                draggedEl: ev.subjectEl,
+                                event: new EventApi(// the data AFTER the mutation
+                                receivingCalendar, mutatedRelevantEvents.defs[eventDef.defId], mutatedRelevantEvents.instances[eventInstance.instanceId]),
+                                view: finalHit.component // should this be finalHit.component.view? See #4644
+                            }
+                        ]);
+                    }
+                }
+                else {
+                    initialCalendar_1.publiclyTrigger('_noEventDrop');
+                }
+            }
+            _this.cleanup();
+        };
+        var component = _this.component;
+        var options = component.context.options;
+        var dragging = _this.dragging = new FeaturefulElementDragging(component.el);
+        dragging.pointer.selector = EventDragging.SELECTOR;
+        dragging.touchScrollAllowed = false;
+        dragging.autoScroller.isEnabled = options.dragScroll;
+        var hitDragging = _this.hitDragging = new HitDragging(_this.dragging, interactionSettingsStore);
+        hitDragging.useSubjectCenter = settings.useEventCenter;
+        hitDragging.emitter.on('pointerdown', _this.handlePointerDown);
+        hitDragging.emitter.on('dragstart', _this.handleDragStart);
+        hitDragging.emitter.on('hitupdate', _this.handleHitUpdate);
+        hitDragging.emitter.on('pointerup', _this.handlePointerUp);
+        hitDragging.emitter.on('dragend', _this.handleDragEnd);
+        return _this;
+    }
+    EventDragging.prototype.destroy = function () {
+        this.dragging.destroy();
+    };
+    // render a drag state on the next receivingCalendar
+    EventDragging.prototype.displayDrag = function (nextCalendar, state) {
+        var initialCalendar = this.component.context.calendar;
+        var prevCalendar = this.receivingCalendar;
+        // does the previous calendar need to be cleared?
+        if (prevCalendar && prevCalendar !== nextCalendar) {
+            // does the initial calendar need to be cleared?
+            // if so, don't clear all the way. we still need to to hide the affectedEvents
+            if (prevCalendar === initialCalendar) {
+                prevCalendar.dispatch({
+                    type: 'SET_EVENT_DRAG',
+                    state: {
+                        affectedEvents: state.affectedEvents,
+                        mutatedEvents: createEmptyEventStore(),
+                        isEvent: true,
+                        origSeg: state.origSeg
+                    }
+                });
+                // completely clear the old calendar if it wasn't the initial
+            }
+            else {
+                prevCalendar.dispatch({ type: 'UNSET_EVENT_DRAG' });
+            }
+        }
+        if (nextCalendar) {
+            nextCalendar.dispatch({ type: 'SET_EVENT_DRAG', state: state });
+        }
+    };
+    EventDragging.prototype.clearDrag = function () {
+        var initialCalendar = this.component.context.calendar;
+        var receivingCalendar = this.receivingCalendar;
+        if (receivingCalendar) {
+            receivingCalendar.dispatch({ type: 'UNSET_EVENT_DRAG' });
+        }
+        // the initial calendar might have an dummy drag state from displayDrag
+        if (initialCalendar !== receivingCalendar) {
+            initialCalendar.dispatch({ type: 'UNSET_EVENT_DRAG' });
+        }
+    };
+    EventDragging.prototype.cleanup = function () {
+        this.subjectSeg = null;
+        this.isDragging = false;
+        this.eventRange = null;
+        this.relevantEvents = null;
+        this.receivingCalendar = null;
+        this.validMutation = null;
+        this.mutatedRelevantEvents = null;
+    };
+    EventDragging.SELECTOR = '.fc-draggable, .fc-resizable'; // TODO: test this in IE11
+    return EventDragging;
+}(Interaction));
+function computeEventMutation(hit0, hit1, massagers) {
+    var dateSpan0 = hit0.dateSpan;
+    var dateSpan1 = hit1.dateSpan;
+    var date0 = dateSpan0.range.start;
+    var date1 = dateSpan1.range.start;
+    var standardProps = {};
+    if (dateSpan0.allDay !== dateSpan1.allDay) {
+        standardProps.allDay = dateSpan1.allDay;
+        standardProps.hasEnd = hit1.component.context.options.allDayMaintainDuration;
+        if (dateSpan1.allDay) {
+            // means date1 is already start-of-day,
+            // but date0 needs to be converted
+            date0 = startOfDay(date0);
+        }
+    }
+    var delta = diffDates(date0, date1, hit0.component.context.dateEnv, hit0.component === hit1.component ?
+        hit0.component.largeUnit :
+        null);
+    if (delta.milliseconds) { // has hours/minutes/seconds
+        standardProps.allDay = false;
+    }
+    var mutation = {
+        datesDelta: delta,
+        standardProps: standardProps
+    };
+    for (var _i = 0, massagers_1 = massagers; _i < massagers_1.length; _i++) {
+        var massager = massagers_1[_i];
+        massager(mutation, hit0, hit1);
+    }
+    return mutation;
+}
+function getComponentTouchDelay$1(component) {
+    var options = component.context.options;
+    var delay = options.eventLongPressDelay;
+    if (delay == null) {
+        delay = options.longPressDelay;
+    }
+    return delay;
+}
+
+var EventDragging$1 = /** @class */ (function (_super) {
+    __extends(EventDragging, _super);
+    function EventDragging(settings) {
+        var _this = _super.call(this, settings) || this;
+        // internal state
+        _this.draggingSeg = null; // TODO: rename to resizingSeg? subjectSeg?
+        _this.eventRange = null;
+        _this.relevantEvents = null;
+        _this.validMutation = null;
+        _this.mutatedRelevantEvents = null;
+        _this.handlePointerDown = function (ev) {
+            var component = _this.component;
+            var seg = _this.querySeg(ev);
+            var eventRange = _this.eventRange = seg.eventRange;
+            _this.dragging.minDistance = component.context.options.eventDragMinDistance;
+            // if touch, need to be working with a selected event
+            _this.dragging.setIgnoreMove(!_this.component.isValidSegDownEl(ev.origEvent.target) ||
+                (ev.isTouch && _this.component.props.eventSelection !== eventRange.instance.instanceId));
+        };
+        _this.handleDragStart = function (ev) {
+            var _a = _this.component.context, calendar = _a.calendar, view = _a.view;
+            var eventRange = _this.eventRange;
+            _this.relevantEvents = getRelevantEvents(calendar.state.eventStore, _this.eventRange.instance.instanceId);
+            _this.draggingSeg = _this.querySeg(ev);
+            calendar.unselect();
+            calendar.publiclyTrigger('eventResizeStart', [
+                {
+                    el: _this.draggingSeg.el,
+                    event: new EventApi(calendar, eventRange.def, eventRange.instance),
+                    jsEvent: ev.origEvent,
+                    view: view
+                }
+            ]);
+        };
+        _this.handleHitUpdate = function (hit, isFinal, ev) {
+            var calendar = _this.component.context.calendar;
+            var relevantEvents = _this.relevantEvents;
+            var initialHit = _this.hitDragging.initialHit;
+            var eventInstance = _this.eventRange.instance;
+            var mutation = null;
+            var mutatedRelevantEvents = null;
+            var isInvalid = false;
+            var interaction = {
+                affectedEvents: relevantEvents,
+                mutatedEvents: createEmptyEventStore(),
+                isEvent: true,
+                origSeg: _this.draggingSeg
+            };
+            if (hit) {
+                mutation = computeMutation(initialHit, hit, ev.subjectEl.classList.contains('fc-start-resizer'), eventInstance.range, calendar.pluginSystem.hooks.eventResizeJoinTransforms);
+            }
+            if (mutation) {
+                mutatedRelevantEvents = applyMutationToEventStore(relevantEvents, calendar.eventUiBases, mutation, calendar);
+                interaction.mutatedEvents = mutatedRelevantEvents;
+                if (!_this.component.isInteractionValid(interaction)) {
+                    isInvalid = true;
+                    mutation = null;
+                    mutatedRelevantEvents = null;
+                    interaction.mutatedEvents = null;
+                }
+            }
+            if (mutatedRelevantEvents) {
+                calendar.dispatch({
+                    type: 'SET_EVENT_RESIZE',
+                    state: interaction
+                });
+            }
+            else {
+                calendar.dispatch({ type: 'UNSET_EVENT_RESIZE' });
+            }
+            if (!isInvalid) {
+                enableCursor();
+            }
+            else {
+                disableCursor();
+            }
+            if (!isFinal) {
+                if (mutation && isHitsEqual(initialHit, hit)) {
+                    mutation = null;
+                }
+                _this.validMutation = mutation;
+                _this.mutatedRelevantEvents = mutatedRelevantEvents;
+            }
+        };
+        _this.handleDragEnd = function (ev) {
+            var _a = _this.component.context, calendar = _a.calendar, view = _a.view;
+            var eventDef = _this.eventRange.def;
+            var eventInstance = _this.eventRange.instance;
+            var eventApi = new EventApi(calendar, eventDef, eventInstance);
+            var relevantEvents = _this.relevantEvents;
+            var mutatedRelevantEvents = _this.mutatedRelevantEvents;
+            calendar.publiclyTrigger('eventResizeStop', [
+                {
+                    el: _this.draggingSeg.el,
+                    event: eventApi,
+                    jsEvent: ev.origEvent,
+                    view: view
+                }
+            ]);
+            if (_this.validMutation) {
+                calendar.dispatch({
+                    type: 'MERGE_EVENTS',
+                    eventStore: mutatedRelevantEvents
+                });
+                calendar.publiclyTrigger('eventResize', [
+                    {
+                        el: _this.draggingSeg.el,
+                        startDelta: _this.validMutation.startDelta || createDuration(0),
+                        endDelta: _this.validMutation.endDelta || createDuration(0),
+                        prevEvent: eventApi,
+                        event: new EventApi(// the data AFTER the mutation
+                        calendar, mutatedRelevantEvents.defs[eventDef.defId], eventInstance ? mutatedRelevantEvents.instances[eventInstance.instanceId] : null),
+                        revert: function () {
+                            calendar.dispatch({
+                                type: 'MERGE_EVENTS',
+                                eventStore: relevantEvents
+                            });
+                        },
+                        jsEvent: ev.origEvent,
+                        view: view
+                    }
+                ]);
+            }
+            else {
+                calendar.publiclyTrigger('_noEventResize');
+            }
+            // reset all internal state
+            _this.draggingSeg = null;
+            _this.relevantEvents = null;
+            _this.validMutation = null;
+            // okay to keep eventInstance around. useful to set it in handlePointerDown
+        };
+        var component = settings.component;
+        var dragging = _this.dragging = new FeaturefulElementDragging(component.el);
+        dragging.pointer.selector = '.fc-resizer';
+        dragging.touchScrollAllowed = false;
+        dragging.autoScroller.isEnabled = component.context.options.dragScroll;
+        var hitDragging = _this.hitDragging = new HitDragging(_this.dragging, interactionSettingsToStore(settings));
+        hitDragging.emitter.on('pointerdown', _this.handlePointerDown);
+        hitDragging.emitter.on('dragstart', _this.handleDragStart);
+        hitDragging.emitter.on('hitupdate', _this.handleHitUpdate);
+        hitDragging.emitter.on('dragend', _this.handleDragEnd);
+        return _this;
+    }
+    EventDragging.prototype.destroy = function () {
+        this.dragging.destroy();
+    };
+    EventDragging.prototype.querySeg = function (ev) {
+        return getElSeg(elementClosest(ev.subjectEl, this.component.fgSegSelector));
+    };
+    return EventDragging;
+}(Interaction));
+function computeMutation(hit0, hit1, isFromStart, instanceRange, transforms) {
+    var dateEnv = hit0.component.context.dateEnv;
+    var date0 = hit0.dateSpan.range.start;
+    var date1 = hit1.dateSpan.range.start;
+    var delta = diffDates(date0, date1, dateEnv, hit0.component.largeUnit);
+    var props = {};
+    for (var _i = 0, transforms_1 = transforms; _i < transforms_1.length; _i++) {
+        var transform = transforms_1[_i];
+        var res = transform(hit0, hit1);
+        if (res === false) {
+            return null;
+        }
+        else if (res) {
+            __assign(props, res);
+        }
+    }
+    if (isFromStart) {
+        if (dateEnv.add(instanceRange.start, delta) < instanceRange.end) {
+            props.startDelta = delta;
+            return props;
+        }
+    }
+    else {
+        if (dateEnv.add(instanceRange.end, delta) > instanceRange.start) {
+            props.endDelta = delta;
+            return props;
+        }
+    }
+    return null;
+}
+
+var UnselectAuto = /** @class */ (function () {
+    function UnselectAuto(calendar) {
+        var _this = this;
+        this.isRecentPointerDateSelect = false; // wish we could use a selector to detect date selection, but uses hit system
+        this.onSelect = function (selectInfo) {
+            if (selectInfo.jsEvent) {
+                _this.isRecentPointerDateSelect = true;
+            }
+        };
+        this.onDocumentPointerUp = function (pev) {
+            var _a = _this, calendar = _a.calendar, documentPointer = _a.documentPointer;
+            var state = calendar.state;
+            // touch-scrolling should never unfocus any type of selection
+            if (!documentPointer.wasTouchScroll) {
+                if (state.dateSelection && // an existing date selection?
+                    !_this.isRecentPointerDateSelect // a new pointer-initiated date selection since last onDocumentPointerUp?
+                ) {
+                    var unselectAuto = calendar.viewOpt('unselectAuto');
+                    var unselectCancel = calendar.viewOpt('unselectCancel');
+                    if (unselectAuto && (!unselectAuto || !elementClosest(documentPointer.downEl, unselectCancel))) {
+                        calendar.unselect(pev);
+                    }
+                }
+                if (state.eventSelection && // an existing event selected?
+                    !elementClosest(documentPointer.downEl, EventDragging.SELECTOR) // interaction DIDN'T start on an event
+                ) {
+                    calendar.dispatch({ type: 'UNSELECT_EVENT' });
+                }
+            }
+            _this.isRecentPointerDateSelect = false;
+        };
+        this.calendar = calendar;
+        var documentPointer = this.documentPointer = new PointerDragging(document);
+        documentPointer.shouldIgnoreMove = true;
+        documentPointer.shouldWatchScroll = false;
+        documentPointer.emitter.on('pointerup', this.onDocumentPointerUp);
+        /*
+        TODO: better way to know about whether there was a selection with the pointer
+        */
+        calendar.on('select', this.onSelect);
+    }
+    UnselectAuto.prototype.destroy = function () {
+        this.calendar.off('select', this.onSelect);
+        this.documentPointer.destroy();
+    };
+    return UnselectAuto;
+}());
+
+/*
+Given an already instantiated draggable object for one-or-more elements,
+Interprets any dragging as an attempt to drag an events that lives outside
+of a calendar onto a calendar.
+*/
+var ExternalElementDragging = /** @class */ (function () {
+    function ExternalElementDragging(dragging, suppliedDragMeta) {
+        var _this = this;
+        this.receivingCalendar = null;
+        this.droppableEvent = null; // will exist for all drags, even if create:false
+        this.suppliedDragMeta = null;
+        this.dragMeta = null;
+        this.handleDragStart = function (ev) {
+            _this.dragMeta = _this.buildDragMeta(ev.subjectEl);
+        };
+        this.handleHitUpdate = function (hit, isFinal, ev) {
+            var dragging = _this.hitDragging.dragging;
+            var receivingCalendar = null;
+            var droppableEvent = null;
+            var isInvalid = false;
+            var interaction = {
+                affectedEvents: createEmptyEventStore(),
+                mutatedEvents: createEmptyEventStore(),
+                isEvent: _this.dragMeta.create,
+                origSeg: null
+            };
+            if (hit) {
+                receivingCalendar = hit.component.context.calendar;
+                if (_this.canDropElOnCalendar(ev.subjectEl, receivingCalendar)) {
+                    droppableEvent = computeEventForDateSpan(hit.dateSpan, _this.dragMeta, receivingCalendar);
+                    interaction.mutatedEvents = eventTupleToStore(droppableEvent);
+                    isInvalid = !isInteractionValid(interaction, receivingCalendar);
+                    if (isInvalid) {
+                        interaction.mutatedEvents = createEmptyEventStore();
+                        droppableEvent = null;
+                    }
+                }
+            }
+            _this.displayDrag(receivingCalendar, interaction);
+            // show mirror if no already-rendered mirror element OR if we are shutting down the mirror (?)
+            // TODO: wish we could somehow wait for dispatch to guarantee render
+            dragging.setMirrorIsVisible(isFinal || !droppableEvent || !document.querySelector('.fc-mirror'));
+            if (!isInvalid) {
+                enableCursor();
+            }
+            else {
+                disableCursor();
+            }
+            if (!isFinal) {
+                dragging.setMirrorNeedsRevert(!droppableEvent);
+                _this.receivingCalendar = receivingCalendar;
+                _this.droppableEvent = droppableEvent;
+            }
+        };
+        this.handleDragEnd = function (pev) {
+            var _a = _this, receivingCalendar = _a.receivingCalendar, droppableEvent = _a.droppableEvent;
+            _this.clearDrag();
+            if (receivingCalendar && droppableEvent) {
+                var finalHit = _this.hitDragging.finalHit;
+                var finalView = finalHit.component.context.view;
+                var dragMeta = _this.dragMeta;
+                var arg = __assign({}, receivingCalendar.buildDatePointApi(finalHit.dateSpan), { draggedEl: pev.subjectEl, jsEvent: pev.origEvent, view: finalView });
+                receivingCalendar.publiclyTrigger('drop', [arg]);
+                if (dragMeta.create) {
+                    receivingCalendar.dispatch({
+                        type: 'MERGE_EVENTS',
+                        eventStore: eventTupleToStore(droppableEvent)
+                    });
+                    if (pev.isTouch) {
+                        receivingCalendar.dispatch({
+                            type: 'SELECT_EVENT',
+                            eventInstanceId: droppableEvent.instance.instanceId
+                        });
+                    }
+                    // signal that an external event landed
+                    receivingCalendar.publiclyTrigger('eventReceive', [
+                        {
+                            draggedEl: pev.subjectEl,
+                            event: new EventApi(receivingCalendar, droppableEvent.def, droppableEvent.instance),
+                            view: finalView
+                        }
+                    ]);
+                }
+            }
+            _this.receivingCalendar = null;
+            _this.droppableEvent = null;
+        };
+        var hitDragging = this.hitDragging = new HitDragging(dragging, interactionSettingsStore);
+        hitDragging.requireInitial = false; // will start outside of a component
+        hitDragging.emitter.on('dragstart', this.handleDragStart);
+        hitDragging.emitter.on('hitupdate', this.handleHitUpdate);
+        hitDragging.emitter.on('dragend', this.handleDragEnd);
+        this.suppliedDragMeta = suppliedDragMeta;
+    }
+    ExternalElementDragging.prototype.buildDragMeta = function (subjectEl) {
+        if (typeof this.suppliedDragMeta === 'object') {
+            return parseDragMeta(this.suppliedDragMeta);
+        }
+        else if (typeof this.suppliedDragMeta === 'function') {
+            return parseDragMeta(this.suppliedDragMeta(subjectEl));
+        }
+        else {
+            return getDragMetaFromEl(subjectEl);
+        }
+    };
+    ExternalElementDragging.prototype.displayDrag = function (nextCalendar, state) {
+        var prevCalendar = this.receivingCalendar;
+        if (prevCalendar && prevCalendar !== nextCalendar) {
+            prevCalendar.dispatch({ type: 'UNSET_EVENT_DRAG' });
+        }
+        if (nextCalendar) {
+            nextCalendar.dispatch({ type: 'SET_EVENT_DRAG', state: state });
+        }
+    };
+    ExternalElementDragging.prototype.clearDrag = function () {
+        if (this.receivingCalendar) {
+            this.receivingCalendar.dispatch({ type: 'UNSET_EVENT_DRAG' });
+        }
+    };
+    ExternalElementDragging.prototype.canDropElOnCalendar = function (el, receivingCalendar) {
+        var dropAccept = receivingCalendar.opt('dropAccept');
+        if (typeof dropAccept === 'function') {
+            return dropAccept(el);
+        }
+        else if (typeof dropAccept === 'string' && dropAccept) {
+            return Boolean(elementMatches(el, dropAccept));
+        }
+        return true;
+    };
+    return ExternalElementDragging;
+}());
+// Utils for computing event store from the DragMeta
+// ----------------------------------------------------------------------------------------------------
+function computeEventForDateSpan(dateSpan, dragMeta, calendar) {
+    var defProps = __assign({}, dragMeta.leftoverProps);
+    for (var _i = 0, _a = calendar.pluginSystem.hooks.externalDefTransforms; _i < _a.length; _i++) {
+        var transform = _a[_i];
+        __assign(defProps, transform(dateSpan, dragMeta));
+    }
+    var def = parseEventDef(defProps, dragMeta.sourceId, dateSpan.allDay, calendar.opt('forceEventDuration') || Boolean(dragMeta.duration), // hasEnd
+    calendar);
+    var start = dateSpan.range.start;
+    // only rely on time info if drop zone is all-day,
+    // otherwise, we already know the time
+    if (dateSpan.allDay && dragMeta.startTime) {
+        start = calendar.dateEnv.add(start, dragMeta.startTime);
+    }
+    var end = dragMeta.duration ?
+        calendar.dateEnv.add(start, dragMeta.duration) :
+        calendar.getDefaultEventEnd(dateSpan.allDay, start);
+    var instance = createEventInstance(def.defId, { start: start, end: end });
+    return { def: def, instance: instance };
+}
+// Utils for extracting data from element
+// ----------------------------------------------------------------------------------------------------
+function getDragMetaFromEl(el) {
+    var str = getEmbeddedElData(el, 'event');
+    var obj = str ?
+        JSON.parse(str) :
+        { create: false }; // if no embedded data, assume no event creation
+    return parseDragMeta(obj);
+}
+config.dataAttrPrefix = '';
+function getEmbeddedElData(el, name) {
+    var prefix = config.dataAttrPrefix;
+    var prefixedName = (prefix ? prefix + '-' : '') + name;
+    return el.getAttribute('data-' + prefixedName) || '';
+}
+
+/*
+Makes an element (that is *external* to any calendar) draggable.
+Can pass in data that determines how an event will be created when dropped onto a calendar.
+Leverages FullCalendar's internal drag-n-drop functionality WITHOUT a third-party drag system.
+*/
+var ExternalDraggable = /** @class */ (function () {
+    function ExternalDraggable(el, settings) {
+        var _this = this;
+        if (settings === void 0) { settings = {}; }
+        this.handlePointerDown = function (ev) {
+            var dragging = _this.dragging;
+            var _a = _this.settings, minDistance = _a.minDistance, longPressDelay = _a.longPressDelay;
+            dragging.minDistance =
+                minDistance != null ?
+                    minDistance :
+                    (ev.isTouch ? 0 : globalDefaults.eventDragMinDistance);
+            dragging.delay =
+                ev.isTouch ? // TODO: eventually read eventLongPressDelay instead vvv
+                    (longPressDelay != null ? longPressDelay : globalDefaults.longPressDelay) :
+                    0;
+        };
+        this.handleDragStart = function (ev) {
+            if (ev.isTouch &&
+                _this.dragging.delay &&
+                ev.subjectEl.classList.contains('fc-event')) {
+                _this.dragging.mirror.getMirrorEl().classList.add('fc-selected');
+            }
+        };
+        this.settings = settings;
+        var dragging = this.dragging = new FeaturefulElementDragging(el);
+        dragging.touchScrollAllowed = false;
+        if (settings.itemSelector != null) {
+            dragging.pointer.selector = settings.itemSelector;
+        }
+        if (settings.appendTo != null) {
+            dragging.mirror.parentNode = settings.appendTo; // TODO: write tests
+        }
+        dragging.emitter.on('pointerdown', this.handlePointerDown);
+        dragging.emitter.on('dragstart', this.handleDragStart);
+        new ExternalElementDragging(dragging, settings.eventData);
+    }
+    ExternalDraggable.prototype.destroy = function () {
+        this.dragging.destroy();
+    };
+    return ExternalDraggable;
+}());
+
+/*
+Detects when a *THIRD-PARTY* drag-n-drop system interacts with elements.
+The third-party system is responsible for drawing the visuals effects of the drag.
+This class simply monitors for pointer movements and fires events.
+It also has the ability to hide the moving element (the "mirror") during the drag.
+*/
+var InferredElementDragging = /** @class */ (function (_super) {
+    __extends(InferredElementDragging, _super);
+    function InferredElementDragging(containerEl) {
+        var _this = _super.call(this, containerEl) || this;
+        _this.shouldIgnoreMove = false;
+        _this.mirrorSelector = '';
+        _this.currentMirrorEl = null;
+        _this.handlePointerDown = function (ev) {
+            _this.emitter.trigger('pointerdown', ev);
+            if (!_this.shouldIgnoreMove) {
+                // fire dragstart right away. does not support delay or min-distance
+                _this.emitter.trigger('dragstart', ev);
+            }
+        };
+        _this.handlePointerMove = function (ev) {
+            if (!_this.shouldIgnoreMove) {
+                _this.emitter.trigger('dragmove', ev);
+            }
+        };
+        _this.handlePointerUp = function (ev) {
+            _this.emitter.trigger('pointerup', ev);
+            if (!_this.shouldIgnoreMove) {
+                // fire dragend right away. does not support a revert animation
+                _this.emitter.trigger('dragend', ev);
+            }
+        };
+        var pointer = _this.pointer = new PointerDragging(containerEl);
+        pointer.emitter.on('pointerdown', _this.handlePointerDown);
+        pointer.emitter.on('pointermove', _this.handlePointerMove);
+        pointer.emitter.on('pointerup', _this.handlePointerUp);
+        return _this;
+    }
+    InferredElementDragging.prototype.destroy = function () {
+        this.pointer.destroy();
+    };
+    InferredElementDragging.prototype.setIgnoreMove = function (bool) {
+        this.shouldIgnoreMove = bool;
+    };
+    InferredElementDragging.prototype.setMirrorIsVisible = function (bool) {
+        if (bool) {
+            // restore a previously hidden element.
+            // use the reference in case the selector class has already been removed.
+            if (this.currentMirrorEl) {
+                this.currentMirrorEl.style.visibility = '';
+                this.currentMirrorEl = null;
+            }
+        }
+        else {
+            var mirrorEl = this.mirrorSelector ?
+                document.querySelector(this.mirrorSelector) :
+                null;
+            if (mirrorEl) {
+                this.currentMirrorEl = mirrorEl;
+                mirrorEl.style.visibility = 'hidden';
+            }
+        }
+    };
+    return InferredElementDragging;
+}(ElementDragging));
+
+/*
+Bridges third-party drag-n-drop systems with FullCalendar.
+Must be instantiated and destroyed by caller.
+*/
+var ThirdPartyDraggable = /** @class */ (function () {
+    function ThirdPartyDraggable(containerOrSettings, settings) {
+        var containerEl = document;
+        if (
+        // wish we could just test instanceof EventTarget, but doesn't work in IE11
+        containerOrSettings === document ||
+            containerOrSettings instanceof Element) {
+            containerEl = containerOrSettings;
+            settings = settings || {};
+        }
+        else {
+            settings = (containerOrSettings || {});
+        }
+        var dragging = this.dragging = new InferredElementDragging(containerEl);
+        if (typeof settings.itemSelector === 'string') {
+            dragging.pointer.selector = settings.itemSelector;
+        }
+        else if (containerEl === document) {
+            dragging.pointer.selector = '[data-event]';
+        }
+        if (typeof settings.mirrorSelector === 'string') {
+            dragging.mirrorSelector = settings.mirrorSelector;
+        }
+        new ExternalElementDragging(dragging, settings.eventData);
+    }
+    ThirdPartyDraggable.prototype.destroy = function () {
+        this.dragging.destroy();
+    };
+    return ThirdPartyDraggable;
+}());
+
+var main = createPlugin({
+    componentInteractions: [DateClicking, DateSelecting, EventDragging, EventDragging$1],
+    calendarInteractions: [UnselectAuto],
+    elementDraggingImpl: FeaturefulElementDragging
+});
+
+export default main;
+export { ExternalDraggable as Draggable, FeaturefulElementDragging, PointerDragging, ThirdPartyDraggable };