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/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@angular/cdk/platform'), require('@angular/cdk/coercion'), require('rxjs'), require('rxjs/operators'), require('@angular/core'), require('@angular/common'), require('@angular/cdk/scrolling'), require('@angular/cdk/bidi')) :
typeof define === 'function' && define.amd ? define('@angular/cdk/drag-drop', ['exports', '@angular/cdk/platform', '@angular/cdk/coercion', 'rxjs', 'rxjs/operators', '@angular/core', '@angular/common', '@angular/cdk/scrolling', '@angular/cdk/bidi'], factory) :
(factory((global.ng = global.ng || {}, global.ng.cdk = global.ng.cdk || {}, global.ng.cdk.dragDrop = {}),global.ng.cdk.platform,global.ng.cdk.coercion,global.rxjs,global.rxjs.operators,global.ng.core,global.ng.common,global.ng.cdk.scrolling,global.ng.cdk.bidi));
}(this, (function (exports,platform,coercion,rxjs,operators,core,common,scrolling,bidi) { 'use strict';
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* Shallow-extends a stylesheet object with another stylesheet object.
* \@docs-private
* @param {?} dest
* @param {?} source
* @return {?}
*/
function extendStyles(dest, source) {
for (var key in source) {
if (source.hasOwnProperty(key)) {
dest[(/** @type {?} */ (key))] = source[(/** @type {?} */ (key))];
}
}
return dest;
}
/**
* Toggles whether the native drag interactions should be enabled for an element.
* \@docs-private
* @param {?} element Element on which to toggle the drag interactions.
* @param {?} enable Whether the drag interactions should be enabled.
* @return {?}
*/
function toggleNativeDragInteractions(element, enable) {
/** @type {?} */
var userSelect = enable ? '' : 'none';
extendStyles(element.style, {
touchAction: enable ? '' : 'none',
webkitUserDrag: enable ? '' : 'none',
webkitTapHighlightColor: enable ? '' : 'transparent',
userSelect: userSelect,
msUserSelect: userSelect,
webkitUserSelect: userSelect,
MozUserSelect: userSelect
});
}
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* Parses a CSS time value to milliseconds.
* @param {?} value
* @return {?}
*/
function parseCssTimeUnitsToMs(value) {
// Some browsers will return it in seconds, whereas others will return milliseconds.
/** @type {?} */
var multiplier = value.toLowerCase().indexOf('ms') > -1 ? 1 : 1000;
return parseFloat(value) * multiplier;
}
/**
* Gets the transform transition duration, including the delay, of an element in milliseconds.
* @param {?} element
* @return {?}
*/
function getTransformTransitionDurationInMs(element) {
/** @type {?} */
var computedStyle = getComputedStyle(element);
/** @type {?} */
var transitionedProperties = parseCssPropertyValue(computedStyle, 'transition-property');
/** @type {?} */
var property = transitionedProperties.find((/**
* @param {?} prop
* @return {?}
*/
function (prop) { return prop === 'transform' || prop === 'all'; }));
// If there's no transition for `all` or `transform`, we shouldn't do anything.
if (!property) {
return 0;
}
// Get the index of the property that we're interested in and match
// it up to the same index in `transition-delay` and `transition-duration`.
/** @type {?} */
var propertyIndex = transitionedProperties.indexOf(property);
/** @type {?} */
var rawDurations = parseCssPropertyValue(computedStyle, 'transition-duration');
/** @type {?} */
var rawDelays = parseCssPropertyValue(computedStyle, 'transition-delay');
return parseCssTimeUnitsToMs(rawDurations[propertyIndex]) +
parseCssTimeUnitsToMs(rawDelays[propertyIndex]);
}
/**
* Parses out multiple values from a computed style into an array.
* @param {?} computedStyle
* @param {?} name
* @return {?}
*/
function parseCssPropertyValue(computedStyle, name) {
/** @type {?} */
var value = computedStyle.getPropertyValue(name);
return value.split(',').map((/**
* @param {?} part
* @return {?}
*/
function (part) { return part.trim(); }));
}
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* Options that can be used to bind a passive event listener.
* @type {?}
*/
var passiveEventListenerOptions = platform.normalizePassiveListenerOptions({ passive: true });
/**
* Options that can be used to bind an active event listener.
* @type {?}
*/
var activeEventListenerOptions = platform.normalizePassiveListenerOptions({ passive: false });
/**
* Time in milliseconds for which to ignore mouse events, after
* receiving a touch event. Used to avoid doing double work for
* touch devices where the browser fires fake mouse events, in
* addition to touch events.
* @type {?}
*/
var MOUSE_EVENT_IGNORE_TIME = 800;
/**
* Reference to a draggable item. Used to manipulate or dispose of the item.
* \@docs-private
* @template T
*/
var /**
* Reference to a draggable item. Used to manipulate or dispose of the item.
* \@docs-private
* @template T
*/
DragRef = /** @class */ (function () {
function DragRef(element, _config, _document, _ngZone, _viewportRuler, _dragDropRegistry) {
var _this = this;
this._config = _config;
this._document = _document;
this._ngZone = _ngZone;
this._viewportRuler = _viewportRuler;
this._dragDropRegistry = _dragDropRegistry;
/**
* CSS `transform` applied to the element when it isn't being dragged. We need a
* passive transform in order for the dragged element to retain its new position
* after the user has stopped dragging and because we need to know the relative
* position in case they start dragging again. This corresponds to `element.style.transform`.
*/
this._passiveTransform = { x: 0, y: 0 };
/**
* CSS `transform` that is applied to the element while it's being dragged.
*/
this._activeTransform = { x: 0, y: 0 };
/**
* Emits when the item is being moved.
*/
this._moveEvents = new rxjs.Subject();
/**
* Subscription to pointer movement events.
*/
this._pointerMoveSubscription = rxjs.Subscription.EMPTY;
/**
* Subscription to the event that is dispatched when the user lifts their pointer.
*/
this._pointerUpSubscription = rxjs.Subscription.EMPTY;
/**
* Subscription to the viewport being scrolled.
*/
this._scrollSubscription = rxjs.Subscription.EMPTY;
/**
* Cached reference to the boundary element.
*/
this._boundaryElement = null;
/**
* Whether the native dragging interactions have been enabled on the root element.
*/
this._nativeInteractionsEnabled = true;
/**
* Elements that can be used to drag the draggable item.
*/
this._handles = [];
/**
* Registered handles that are currently disabled.
*/
this._disabledHandles = new Set();
/**
* Layout direction of the item.
*/
this._direction = 'ltr';
/**
* Amount of milliseconds to wait after the user has put their
* pointer down before starting to drag the element.
*/
this.dragStartDelay = 0;
this._disabled = false;
/**
* Emits as the drag sequence is being prepared.
*/
this.beforeStarted = new rxjs.Subject();
/**
* Emits when the user starts dragging the item.
*/
this.started = new rxjs.Subject();
/**
* Emits when the user has released a drag item, before any animations have started.
*/
this.released = new rxjs.Subject();
/**
* Emits when the user stops dragging an item in the container.
*/
this.ended = new rxjs.Subject();
/**
* Emits when the user has moved the item into a new container.
*/
this.entered = new rxjs.Subject();
/**
* Emits when the user removes the item its container by dragging it into another container.
*/
this.exited = new rxjs.Subject();
/**
* Emits when the user drops the item inside a container.
*/
this.dropped = new rxjs.Subject();
/**
* Emits as the user is dragging the item. Use with caution,
* because this event will fire for every pixel that the user has dragged.
*/
this.moved = this._moveEvents.asObservable();
/**
* Handler for the `mousedown`/`touchstart` events.
*/
this._pointerDown = (/**
* @param {?} event
* @return {?}
*/
function (event) {
_this.beforeStarted.next();
// Delegate the event based on whether it started from a handle or the element itself.
if (_this._handles.length) {
/** @type {?} */
var targetHandle = _this._handles.find((/**
* @param {?} handle
* @return {?}
*/
function (handle) {
/** @type {?} */
var target = event.target;
return !!target && (target === handle || handle.contains((/** @type {?} */ (target))));
}));
if (targetHandle && !_this._disabledHandles.has(targetHandle) && !_this.disabled) {
_this._initializeDragSequence(targetHandle, event);
}
}
else if (!_this.disabled) {
_this._initializeDragSequence(_this._rootElement, event);
}
});
/**
* Handler that is invoked when the user moves their pointer after they've initiated a drag.
*/
this._pointerMove = (/**
* @param {?} event
* @return {?}
*/
function (event) {
if (!_this._hasStartedDragging) {
/** @type {?} */
var pointerPosition = _this._getPointerPositionOnPage(event);
/** @type {?} */
var distanceX = Math.abs(pointerPosition.x - _this._pickupPositionOnPage.x);
/** @type {?} */
var distanceY = Math.abs(pointerPosition.y - _this._pickupPositionOnPage.y);
/** @type {?} */
var isOverThreshold = distanceX + distanceY >= _this._config.dragStartThreshold;
// Only start dragging after the user has moved more than the minimum distance in either
// direction. Note that this is preferrable over doing something like `skip(minimumDistance)`
// in the `pointerMove` subscription, because we're not guaranteed to have one move event
// per pixel of movement (e.g. if the user moves their pointer quickly).
if (isOverThreshold) {
/** @type {?} */
var isDelayElapsed = Date.now() >= _this._dragStartTime + (_this.dragStartDelay || 0);
if (!isDelayElapsed) {
_this._endDragSequence(event);
return;
}
// Prevent other drag sequences from starting while something in the container is still
// being dragged. This can happen while we're waiting for the drop animation to finish
// and can cause errors, because some elements might still be moving around.
if (!_this._dropContainer || !_this._dropContainer.isDragging()) {
_this._hasStartedDragging = true;
_this._ngZone.run((/**
* @return {?}
*/
function () { return _this._startDragSequence(event); }));
}
}
return;
}
// We only need the preview dimensions if we have a boundary element.
if (_this._boundaryElement) {
// Cache the preview element rect if we haven't cached it already or if
// we cached it too early before the element dimensions were computed.
if (!_this._previewRect || (!_this._previewRect.width && !_this._previewRect.height)) {
_this._previewRect = (_this._preview || _this._rootElement).getBoundingClientRect();
}
}
/** @type {?} */
var constrainedPointerPosition = _this._getConstrainedPointerPosition(event);
_this._hasMoved = true;
event.preventDefault();
_this._updatePointerDirectionDelta(constrainedPointerPosition);
if (_this._dropContainer) {
_this._updateActiveDropContainer(constrainedPointerPosition);
}
else {
/** @type {?} */
var activeTransform = _this._activeTransform;
activeTransform.x =
constrainedPointerPosition.x - _this._pickupPositionOnPage.x + _this._passiveTransform.x;
activeTransform.y =
constrainedPointerPosition.y - _this._pickupPositionOnPage.y + _this._passiveTransform.y;
_this._applyRootElementTransform(activeTransform.x, activeTransform.y);
// Apply transform as attribute if dragging and svg element to work for IE
if (typeof SVGElement !== 'undefined' && _this._rootElement instanceof SVGElement) {
/** @type {?} */
var appliedTransform = "translate(" + activeTransform.x + " " + activeTransform.y + ")";
_this._rootElement.setAttribute('transform', appliedTransform);
}
}
// Since this event gets fired for every pixel while dragging, we only
// want to fire it if the consumer opted into it. Also we have to
// re-enter the zone because we run all of the events on the outside.
if (_this._moveEvents.observers.length) {
_this._ngZone.run((/**
* @return {?}
*/
function () {
_this._moveEvents.next({
source: _this,
pointerPosition: constrainedPointerPosition,
event: event,
distance: _this._getDragDistance(constrainedPointerPosition),
delta: _this._pointerDirectionDelta
});
}));
}
});
/**
* Handler that is invoked when the user lifts their pointer up, after initiating a drag.
*/
this._pointerUp = (/**
* @param {?} event
* @return {?}
*/
function (event) {
_this._endDragSequence(event);
});
this.withRootElement(element);
_dragDropRegistry.registerDragItem(this);
}
Object.defineProperty(DragRef.prototype, "disabled", {
/** Whether starting to drag this element is disabled. */
get: /**
* Whether starting to drag this element is disabled.
* @return {?}
*/
function () {
return this._disabled || !!(this._dropContainer && this._dropContainer.disabled);
},
set: /**
* @param {?} value
* @return {?}
*/
function (value) {
/** @type {?} */
var newValue = coercion.coerceBooleanProperty(value);
if (newValue !== this._disabled) {
this._disabled = newValue;
this._toggleNativeDragInteractions();
}
},
enumerable: true,
configurable: true
});
/**
* Returns the element that is being used as a placeholder
* while the current element is being dragged.
*/
/**
* Returns the element that is being used as a placeholder
* while the current element is being dragged.
* @return {?}
*/
DragRef.prototype.getPlaceholderElement = /**
* Returns the element that is being used as a placeholder
* while the current element is being dragged.
* @return {?}
*/
function () {
return this._placeholder;
};
/** Returns the root draggable element. */
/**
* Returns the root draggable element.
* @return {?}
*/
DragRef.prototype.getRootElement = /**
* Returns the root draggable element.
* @return {?}
*/
function () {
return this._rootElement;
};
/** Registers the handles that can be used to drag the element. */
/**
* Registers the handles that can be used to drag the element.
* @template THIS
* @this {THIS}
* @param {?} handles
* @return {THIS}
*/
DragRef.prototype.withHandles = /**
* Registers the handles that can be used to drag the element.
* @template THIS
* @this {THIS}
* @param {?} handles
* @return {THIS}
*/
function (handles) {
(/** @type {?} */ (this))._handles = handles.map((/**
* @param {?} handle
* @return {?}
*/
function (handle) { return coercion.coerceElement(handle); }));
(/** @type {?} */ (this))._handles.forEach((/**
* @param {?} handle
* @return {?}
*/
function (handle) { return toggleNativeDragInteractions(handle, false); }));
(/** @type {?} */ (this))._toggleNativeDragInteractions();
return (/** @type {?} */ (this));
};
/**
* Registers the template that should be used for the drag preview.
* @param template Template that from which to stamp out the preview.
*/
/**
* Registers the template that should be used for the drag preview.
* @template THIS
* @this {THIS}
* @param {?} template Template that from which to stamp out the preview.
* @return {THIS}
*/
DragRef.prototype.withPreviewTemplate = /**
* Registers the template that should be used for the drag preview.
* @template THIS
* @this {THIS}
* @param {?} template Template that from which to stamp out the preview.
* @return {THIS}
*/
function (template) {
(/** @type {?} */ (this))._previewTemplate = template;
return (/** @type {?} */ (this));
};
/**
* Registers the template that should be used for the drag placeholder.
* @param template Template that from which to stamp out the placeholder.
*/
/**
* Registers the template that should be used for the drag placeholder.
* @template THIS
* @this {THIS}
* @param {?} template Template that from which to stamp out the placeholder.
* @return {THIS}
*/
DragRef.prototype.withPlaceholderTemplate = /**
* Registers the template that should be used for the drag placeholder.
* @template THIS
* @this {THIS}
* @param {?} template Template that from which to stamp out the placeholder.
* @return {THIS}
*/
function (template) {
(/** @type {?} */ (this))._placeholderTemplate = template;
return (/** @type {?} */ (this));
};
/**
* Sets an alternate drag root element. The root element is the element that will be moved as
* the user is dragging. Passing an alternate root element is useful when trying to enable
* dragging on an element that you might not have access to.
*/
/**
* Sets an alternate drag root element. The root element is the element that will be moved as
* the user is dragging. Passing an alternate root element is useful when trying to enable
* dragging on an element that you might not have access to.
* @template THIS
* @this {THIS}
* @param {?} rootElement
* @return {THIS}
*/
DragRef.prototype.withRootElement = /**
* Sets an alternate drag root element. The root element is the element that will be moved as
* the user is dragging. Passing an alternate root element is useful when trying to enable
* dragging on an element that you might not have access to.
* @template THIS
* @this {THIS}
* @param {?} rootElement
* @return {THIS}
*/
function (rootElement) {
/** @type {?} */
var element = coercion.coerceElement(rootElement);
if (element !== (/** @type {?} */ (this))._rootElement) {
if ((/** @type {?} */ (this))._rootElement) {
(/** @type {?} */ (this))._removeRootElementListeners((/** @type {?} */ (this))._rootElement);
}
element.addEventListener('mousedown', (/** @type {?} */ (this))._pointerDown, activeEventListenerOptions);
element.addEventListener('touchstart', (/** @type {?} */ (this))._pointerDown, passiveEventListenerOptions);
(/** @type {?} */ (this))._initialTransform = undefined;
(/** @type {?} */ (this))._rootElement = element;
}
return (/** @type {?} */ (this));
};
/**
* Element to which the draggable's position will be constrained.
*/
/**
* Element to which the draggable's position will be constrained.
* @template THIS
* @this {THIS}
* @param {?} boundaryElement
* @return {THIS}
*/
DragRef.prototype.withBoundaryElement = /**
* Element to which the draggable's position will be constrained.
* @template THIS
* @this {THIS}
* @param {?} boundaryElement
* @return {THIS}
*/
function (boundaryElement) {
(/** @type {?} */ (this))._boundaryElement = boundaryElement ? coercion.coerceElement(boundaryElement) : null;
return (/** @type {?} */ (this));
};
/** Removes the dragging functionality from the DOM element. */
/**
* Removes the dragging functionality from the DOM element.
* @return {?}
*/
DragRef.prototype.dispose = /**
* Removes the dragging functionality from the DOM element.
* @return {?}
*/
function () {
this._removeRootElementListeners(this._rootElement);
// Do this check before removing from the registry since it'll
// stop being considered as dragged once it is removed.
if (this.isDragging()) {
// Since we move out the element to the end of the body while it's being
// dragged, we have to make sure that it's removed if it gets destroyed.
removeElement(this._rootElement);
}
this._destroyPreview();
this._destroyPlaceholder();
this._dragDropRegistry.removeDragItem(this);
this._removeSubscriptions();
this.beforeStarted.complete();
this.started.complete();
this.released.complete();
this.ended.complete();
this.entered.complete();
this.exited.complete();
this.dropped.complete();
this._moveEvents.complete();
this._handles = [];
this._disabledHandles.clear();
this._dropContainer = undefined;
this._boundaryElement = this._rootElement = this._placeholderTemplate =
this._previewTemplate = this._nextSibling = (/** @type {?} */ (null));
};
/** Checks whether the element is currently being dragged. */
/**
* Checks whether the element is currently being dragged.
* @return {?}
*/
DragRef.prototype.isDragging = /**
* Checks whether the element is currently being dragged.
* @return {?}
*/
function () {
return this._hasStartedDragging && this._dragDropRegistry.isDragging(this);
};
/** Resets a standalone drag item to its initial position. */
/**
* Resets a standalone drag item to its initial position.
* @return {?}
*/
DragRef.prototype.reset = /**
* Resets a standalone drag item to its initial position.
* @return {?}
*/
function () {
this._rootElement.style.transform = this._initialTransform || '';
this._activeTransform = { x: 0, y: 0 };
this._passiveTransform = { x: 0, y: 0 };
};
/**
* Sets a handle as disabled. While a handle is disabled, it'll capture and interrupt dragging.
* @param handle Handle element that should be disabled.
*/
/**
* Sets a handle as disabled. While a handle is disabled, it'll capture and interrupt dragging.
* @param {?} handle Handle element that should be disabled.
* @return {?}
*/
DragRef.prototype.disableHandle = /**
* Sets a handle as disabled. While a handle is disabled, it'll capture and interrupt dragging.
* @param {?} handle Handle element that should be disabled.
* @return {?}
*/
function (handle) {
if (this._handles.indexOf(handle) > -1) {
this._disabledHandles.add(handle);
}
};
/**
* Enables a handle, if it has been disabled.
* @param handle Handle element to be enabled.
*/
/**
* Enables a handle, if it has been disabled.
* @param {?} handle Handle element to be enabled.
* @return {?}
*/
DragRef.prototype.enableHandle = /**
* Enables a handle, if it has been disabled.
* @param {?} handle Handle element to be enabled.
* @return {?}
*/
function (handle) {
this._disabledHandles.delete(handle);
};
/** Sets the layout direction of the draggable item. */
/**
* Sets the layout direction of the draggable item.
* @template THIS
* @this {THIS}
* @param {?} direction
* @return {THIS}
*/
DragRef.prototype.withDirection = /**
* Sets the layout direction of the draggable item.
* @template THIS
* @this {THIS}
* @param {?} direction
* @return {THIS}
*/
function (direction) {
(/** @type {?} */ (this))._direction = direction;
return (/** @type {?} */ (this));
};
/** Sets the container that the item is part of. */
/**
* Sets the container that the item is part of.
* @param {?} container
* @return {?}
*/
DragRef.prototype._withDropContainer = /**
* Sets the container that the item is part of.
* @param {?} container
* @return {?}
*/
function (container) {
this._dropContainer = container;
};
/**
* Gets the current position in pixels the draggable outside of a drop container.
*/
/**
* Gets the current position in pixels the draggable outside of a drop container.
* @return {?}
*/
DragRef.prototype.getFreeDragPosition = /**
* Gets the current position in pixels the draggable outside of a drop container.
* @return {?}
*/
function () {
/** @type {?} */
var position = this.isDragging() ? this._activeTransform : this._passiveTransform;
return { x: position.x, y: position.y };
};
/**
* Sets the current position in pixels the draggable outside of a drop container.
* @param value New position to be set.
*/
/**
* Sets the current position in pixels the draggable outside of a drop container.
* @template THIS
* @this {THIS}
* @param {?} value New position to be set.
* @return {THIS}
*/
DragRef.prototype.setFreeDragPosition = /**
* Sets the current position in pixels the draggable outside of a drop container.
* @template THIS
* @this {THIS}
* @param {?} value New position to be set.
* @return {THIS}
*/
function (value) {
(/** @type {?} */ (this))._activeTransform = { x: 0, y: 0 };
(/** @type {?} */ (this))._passiveTransform.x = value.x;
(/** @type {?} */ (this))._passiveTransform.y = value.y;
if (!(/** @type {?} */ (this))._dropContainer) {
(/** @type {?} */ (this))._applyRootElementTransform(value.x, value.y);
}
return (/** @type {?} */ (this));
};
/** Updates the item's sort order based on the last-known pointer position. */
/**
* Updates the item's sort order based on the last-known pointer position.
* @return {?}
*/
DragRef.prototype._sortFromLastPointerPosition = /**
* Updates the item's sort order based on the last-known pointer position.
* @return {?}
*/
function () {
/** @type {?} */
var position = this._pointerPositionAtLastDirectionChange;
if (position && this._dropContainer) {
this._updateActiveDropContainer(position);
}
};
/** Unsubscribes from the global subscriptions. */
/**
* Unsubscribes from the global subscriptions.
* @private
* @return {?}
*/
DragRef.prototype._removeSubscriptions = /**
* Unsubscribes from the global subscriptions.
* @private
* @return {?}
*/
function () {
this._pointerMoveSubscription.unsubscribe();
this._pointerUpSubscription.unsubscribe();
this._scrollSubscription.unsubscribe();
};
/** Destroys the preview element and its ViewRef. */
/**
* Destroys the preview element and its ViewRef.
* @private
* @return {?}
*/
DragRef.prototype._destroyPreview = /**
* Destroys the preview element and its ViewRef.
* @private
* @return {?}
*/
function () {
if (this._preview) {
removeElement(this._preview);
}
if (this._previewRef) {
this._previewRef.destroy();
}
this._preview = this._previewRef = (/** @type {?} */ (null));
};
/** Destroys the placeholder element and its ViewRef. */
/**
* Destroys the placeholder element and its ViewRef.
* @private
* @return {?}
*/
DragRef.prototype._destroyPlaceholder = /**
* Destroys the placeholder element and its ViewRef.
* @private
* @return {?}
*/
function () {
if (this._placeholder) {
removeElement(this._placeholder);
}
if (this._placeholderRef) {
this._placeholderRef.destroy();
}
this._placeholder = this._placeholderRef = (/** @type {?} */ (null));
};
/**
* Clears subscriptions and stops the dragging sequence.
* @param event Browser event object that ended the sequence.
*/
/**
* Clears subscriptions and stops the dragging sequence.
* @private
* @param {?} event Browser event object that ended the sequence.
* @return {?}
*/
DragRef.prototype._endDragSequence = /**
* Clears subscriptions and stops the dragging sequence.
* @private
* @param {?} event Browser event object that ended the sequence.
* @return {?}
*/
function (event) {
var _this = this;
// Note that here we use `isDragging` from the service, rather than from `this`.
// The difference is that the one from the service reflects whether a dragging sequence
// has been initiated, whereas the one on `this` includes whether the user has passed
// the minimum dragging threshold.
if (!this._dragDropRegistry.isDragging(this)) {
return;
}
this._removeSubscriptions();
this._dragDropRegistry.stopDragging(this);
if (this._handles) {
this._rootElement.style.webkitTapHighlightColor = this._rootElementTapHighlight;
}
if (!this._hasStartedDragging) {
return;
}
this.released.next({ source: this });
if (this._dropContainer) {
// Stop scrolling immediately, instead of waiting for the animation to finish.
this._dropContainer._stopScrolling();
this._animatePreviewToPlaceholder().then((/**
* @return {?}
*/
function () {
_this._cleanupDragArtifacts(event);
_this._dragDropRegistry.stopDragging(_this);
}));
}
else {
// Convert the active transform into a passive one. This means that next time
// the user starts dragging the item, its position will be calculated relatively
// to the new passive transform.
this._passiveTransform.x = this._activeTransform.x;
this._passiveTransform.y = this._activeTransform.y;
this._ngZone.run((/**
* @return {?}
*/
function () {
_this.ended.next({
source: _this,
distance: _this._getDragDistance(_this._getPointerPositionOnPage(event))
});
}));
this._dragDropRegistry.stopDragging(this);
}
};
/** Starts the dragging sequence. */
/**
* Starts the dragging sequence.
* @private
* @param {?} event
* @return {?}
*/
DragRef.prototype._startDragSequence = /**
* Starts the dragging sequence.
* @private
* @param {?} event
* @return {?}
*/
function (event) {
// Emit the event on the item before the one on the container.
this.started.next({ source: this });
if (isTouchEvent(event)) {
this._lastTouchEventTime = Date.now();
}
this._toggleNativeDragInteractions();
if (this._dropContainer) {
/** @type {?} */
var element = this._rootElement;
// Grab the `nextSibling` before the preview and placeholder
// have been created so we don't get the preview by accident.
this._nextSibling = element.nextSibling;
/** @type {?} */
var preview = this._preview = this._createPreviewElement();
/** @type {?} */
var placeholder = this._placeholder = this._createPlaceholderElement();
// We move the element out at the end of the body and we make it hidden, because keeping it in
// place will throw off the consumer's `:last-child` selectors. We can't remove the element
// from the DOM completely, because iOS will stop firing all subsequent events in the chain.
element.style.display = 'none';
this._document.body.appendChild((/** @type {?} */ (element.parentNode)).replaceChild(placeholder, element));
getPreviewInsertionPoint(this._document).appendChild(preview);
this._dropContainer.start();
}
};
/**
* Sets up the different variables and subscriptions
* that will be necessary for the dragging sequence.
* @param referenceElement Element that started the drag sequence.
* @param event Browser event object that started the sequence.
*/
/**
* Sets up the different variables and subscriptions
* that will be necessary for the dragging sequence.
* @private
* @param {?} referenceElement Element that started the drag sequence.
* @param {?} event Browser event object that started the sequence.
* @return {?}
*/
DragRef.prototype._initializeDragSequence = /**
* Sets up the different variables and subscriptions
* that will be necessary for the dragging sequence.
* @private
* @param {?} referenceElement Element that started the drag sequence.
* @param {?} event Browser event object that started the sequence.
* @return {?}
*/
function (referenceElement, event) {
var _this = this;
// Always stop propagation for the event that initializes
// the dragging sequence, in order to prevent it from potentially
// starting another sequence for a draggable parent somewhere up the DOM tree.
event.stopPropagation();
/** @type {?} */
var isDragging = this.isDragging();
/** @type {?} */
var isTouchSequence = isTouchEvent(event);
/** @type {?} */
var isAuxiliaryMouseButton = !isTouchSequence && ((/** @type {?} */ (event))).button !== 0;
/** @type {?} */
var rootElement = this._rootElement;
/** @type {?} */
var isSyntheticEvent = !isTouchSequence && this._lastTouchEventTime &&
this._lastTouchEventTime + MOUSE_EVENT_IGNORE_TIME > Date.now();
// If the event started from an element with the native HTML drag&drop, it'll interfere
// with our own dragging (e.g. `img` tags do it by default). Prevent the default action
// to stop it from happening. Note that preventing on `dragstart` also seems to work, but
// it's flaky and it fails if the user drags it away quickly. Also note that we only want
// to do this for `mousedown` since doing the same for `touchstart` will stop any `click`
// events from firing on touch devices.
if (event.target && ((/** @type {?} */ (event.target))).draggable && event.type === 'mousedown') {
event.preventDefault();
}
// Abort if the user is already dragging or is using a mouse button other than the primary one.
if (isDragging || isAuxiliaryMouseButton || isSyntheticEvent) {
return;
}
// If we've got handles, we need to disable the tap highlight on the entire root element,
// otherwise iOS will still add it, even though all the drag interactions on the handle
// are disabled.
if (this._handles.length) {
this._rootElementTapHighlight = rootElement.style.webkitTapHighlightColor;
rootElement.style.webkitTapHighlightColor = 'transparent';
}
this._hasStartedDragging = this._hasMoved = false;
this._initialContainer = (/** @type {?} */ (this._dropContainer));
// Avoid multiple subscriptions and memory leaks when multi touch
// (isDragging check above isn't enough because of possible temporal and/or dimensional delays)
this._removeSubscriptions();
this._pointerMoveSubscription = this._dragDropRegistry.pointerMove.subscribe(this._pointerMove);
this._pointerUpSubscription = this._dragDropRegistry.pointerUp.subscribe(this._pointerUp);
this._scrollSubscription = this._dragDropRegistry.scroll.pipe(operators.startWith(null)).subscribe((/**
* @return {?}
*/
function () {
_this._scrollPosition = _this._viewportRuler.getViewportScrollPosition();
}));
if (this._boundaryElement) {
this._boundaryRect = this._boundaryElement.getBoundingClientRect();
}
// If we have a custom preview template, the element won't be visible anyway so we avoid the
// extra `getBoundingClientRect` calls and just move the preview next to the cursor.
this._pickupPositionInElement = this._previewTemplate && this._previewTemplate.template ?
{ x: 0, y: 0 } :
this._getPointerPositionInElement(referenceElement, event);
/** @type {?} */
var pointerPosition = this._pickupPositionOnPage = this._getPointerPositionOnPage(event);
this._pointerDirectionDelta = { x: 0, y: 0 };
this._pointerPositionAtLastDirectionChange = { x: pointerPosition.x, y: pointerPosition.y };
this._dragStartTime = Date.now();
this._dragDropRegistry.startDragging(this, event);
};
/** Cleans up the DOM artifacts that were added to facilitate the element being dragged. */
/**
* Cleans up the DOM artifacts that were added to facilitate the element being dragged.
* @private
* @param {?} event
* @return {?}
*/
DragRef.prototype._cleanupDragArtifacts = /**
* Cleans up the DOM artifacts that were added to facilitate the element being dragged.
* @private
* @param {?} event
* @return {?}
*/
function (event) {
var _this = this;
// Restore the element's visibility and insert it at its old position in the DOM.
// It's important that we maintain the position, because moving the element around in the DOM
// can throw off `NgFor` which does smart diffing and re-creates elements only when necessary,
// while moving the existing elements in all other cases.
this._rootElement.style.display = '';
if (this._nextSibling) {
(/** @type {?} */ (this._nextSibling.parentNode)).insertBefore(this._rootElement, this._nextSibling);
}
else {
coercion.coerceElement(this._initialContainer.element).appendChild(this._rootElement);
}
this._destroyPreview();
this._destroyPlaceholder();
this._boundaryRect = this._previewRect = undefined;
// Re-enter the NgZone since we bound `document` events on the outside.
this._ngZone.run((/**
* @return {?}
*/
function () {
/** @type {?} */
var container = (/** @type {?} */ (_this._dropContainer));
/** @type {?} */
var currentIndex = container.getItemIndex(_this);
/** @type {?} */
var pointerPosition = _this._getPointerPositionOnPage(event);
/** @type {?} */
var distance = _this._getDragDistance(_this._getPointerPositionOnPage(event));
/** @type {?} */
var isPointerOverContainer = container._isOverContainer(pointerPosition.x, pointerPosition.y);
_this.ended.next({ source: _this, distance: distance });
_this.dropped.next({
item: _this,
currentIndex: currentIndex,
previousIndex: _this._initialContainer.getItemIndex(_this),
container: container,
previousContainer: _this._initialContainer,
isPointerOverContainer: isPointerOverContainer,
distance: distance
});
container.drop(_this, currentIndex, _this._initialContainer, isPointerOverContainer, distance);
_this._dropContainer = _this._initialContainer;
}));
};
/**
* Updates the item's position in its drop container, or moves it
* into a new one, depending on its current drag position.
*/
/**
* Updates the item's position in its drop container, or moves it
* into a new one, depending on its current drag position.
* @private
* @param {?} __0
* @return {?}
*/
DragRef.prototype._updateActiveDropContainer = /**
* Updates the item's position in its drop container, or moves it
* into a new one, depending on its current drag position.
* @private
* @param {?} __0
* @return {?}
*/
function (_a) {
var _this = this;
var x = _a.x, y = _a.y;
// Drop container that draggable has been moved into.
/** @type {?} */
var newContainer = this._initialContainer._getSiblingContainerFromPosition(this, x, y);
// If we couldn't find a new container to move the item into, and the item has left it's
// initial container, check whether the it's over the initial container. This handles the
// case where two containers are connected one way and the user tries to undo dragging an
// item into a new container.
if (!newContainer && this._dropContainer !== this._initialContainer &&
this._initialContainer._isOverContainer(x, y)) {
newContainer = this._initialContainer;
}
if (newContainer && newContainer !== this._dropContainer) {
this._ngZone.run((/**
* @return {?}
*/
function () {
// Notify the old container that the item has left.
_this.exited.next({ item: _this, container: (/** @type {?} */ (_this._dropContainer)) });
(/** @type {?} */ (_this._dropContainer)).exit(_this);
// Notify the new container that the item has entered.
_this._dropContainer = (/** @type {?} */ (newContainer));
_this._dropContainer.enter(_this, x, y);
_this.entered.next({
item: _this,
container: (/** @type {?} */ (newContainer)),
currentIndex: (/** @type {?} */ (newContainer)).getItemIndex(_this)
});
}));
}
(/** @type {?} */ (this._dropContainer))._startScrollingIfNecessary(x, y);
(/** @type {?} */ (this._dropContainer))._sortItem(this, x, y, this._pointerDirectionDelta);
this._preview.style.transform =
getTransform(x - this._pickupPositionInElement.x, y - this._pickupPositionInElement.y);
};
/**
* Creates the element that will be rendered next to the user's pointer
* and will be used as a preview of the element that is being dragged.
*/
/**
* Creates the element that will be rendered next to the user's pointer
* and will be used as a preview of the element that is being dragged.
* @private
* @return {?}
*/
DragRef.prototype._createPreviewElement = /**
* Creates the element that will be rendered next to the user's pointer
* and will be used as a preview of the element that is being dragged.
* @private
* @return {?}
*/
function () {
/** @type {?} */
var previewConfig = this._previewTemplate;
/** @type {?} */
var previewTemplate = previewConfig ? previewConfig.template : null;
/** @type {?} */
var preview;
if (previewTemplate) {
/** @type {?} */
var viewRef = (/** @type {?} */ (previewConfig)).viewContainer.createEmbeddedView(previewTemplate, (/** @type {?} */ (previewConfig)).context);
preview = viewRef.rootNodes[0];
this._previewRef = viewRef;
preview.style.transform =
getTransform(this._pickupPositionOnPage.x, this._pickupPositionOnPage.y);
}
else {
/** @type {?} */
var element = this._rootElement;
/** @type {?} */
var elementRect = element.getBoundingClientRect();
preview = deepCloneNode(element);
preview.style.width = elementRect.width + "px";
preview.style.height = elementRect.height + "px";
preview.style.transform = getTransform(elementRect.left, elementRect.top);
}
extendStyles(preview.style, {
// It's important that we disable the pointer events on the preview, because
// it can throw off the `document.elementFromPoint` calls in the `CdkDropList`.
pointerEvents: 'none',
position: 'fixed',
top: '0',
left: '0',
zIndex: '1000'
});
toggleNativeDragInteractions(preview, false);
preview.classList.add('cdk-drag-preview');
preview.setAttribute('dir', this._direction);
return preview;
};
/**
* Animates the preview element from its current position to the location of the drop placeholder.
* @returns Promise that resolves when the animation completes.
*/
/**
* Animates the preview element from its current position to the location of the drop placeholder.
* @private
* @return {?} Promise that resolves when the animation completes.
*/
DragRef.prototype._animatePreviewToPlaceholder = /**
* Animates the preview element from its current position to the location of the drop placeholder.
* @private
* @return {?} Promise that resolves when the animation completes.
*/
function () {
var _this = this;
// If the user hasn't moved yet, the transitionend event won't fire.
if (!this._hasMoved) {
return Promise.resolve();
}
/** @type {?} */
var placeholderRect = this._placeholder.getBoundingClientRect();
// Apply the class that adds a transition to the preview.
this._preview.classList.add('cdk-drag-animating');
// Move the preview to the placeholder position.
this._preview.style.transform = getTransform(placeholderRect.left, placeholderRect.top);
// If the element doesn't have a `transition`, the `transitionend` event won't fire. Since
// we need to trigger a style recalculation in order for the `cdk-drag-animating` class to
// apply its style, we take advantage of the available info to figure out whether we need to
// bind the event in the first place.
/** @type {?} */
var duration = getTransformTransitionDurationInMs(this._preview);
if (duration === 0) {
return Promise.resolve();
}
return this._ngZone.runOutsideAngular((/**
* @return {?}
*/
function () {
return new Promise((/**
* @param {?} resolve
* @return {?}
*/
function (resolve) {
/** @type {?} */
var handler = (/** @type {?} */ (((/**
* @param {?} event
* @return {?}
*/
function (event) {
if (!event || (event.target === _this._preview && event.propertyName === 'transform')) {
_this._preview.removeEventListener('transitionend', handler);
resolve();
clearTimeout(timeout);
}
}))));
// If a transition is short enough, the browser might not fire the `transitionend` event.
// Since we know how long it's supposed to take, add a timeout with a 50% buffer that'll
// fire if the transition hasn't completed when it was supposed to.
/** @type {?} */
var timeout = setTimeout((/** @type {?} */ (handler)), duration * 1.5);
_this._preview.addEventListener('transitionend', handler);
}));
}));
};
/** Creates an element that will be shown instead of the current element while dragging. */
/**
* Creates an element that will be shown instead of the current element while dragging.
* @private
* @return {?}
*/
DragRef.prototype._createPlaceholderElement = /**
* Creates an element that will be shown instead of the current element while dragging.
* @private
* @return {?}
*/
function () {
/** @type {?} */
var placeholderConfig = this._placeholderTemplate;
/** @type {?} */
var placeholderTemplate = placeholderConfig ? placeholderConfig.template : null;
/** @type {?} */
var placeholder;
if (placeholderTemplate) {
this._placeholderRef = (/** @type {?} */ (placeholderConfig)).viewContainer.createEmbeddedView(placeholderTemplate, (/** @type {?} */ (placeholderConfig)).context);
placeholder = this._placeholderRef.rootNodes[0];
}
else {
placeholder = deepCloneNode(this._rootElement);
}
placeholder.classList.add('cdk-drag-placeholder');
return placeholder;
};
/**
* Figures out the coordinates at which an element was picked up.
* @param referenceElement Element that initiated the dragging.
* @param event Event that initiated the dragging.
*/
/**
* Figures out the coordinates at which an element was picked up.
* @private
* @param {?} referenceElement Element that initiated the dragging.
* @param {?} event Event that initiated the dragging.
* @return {?}
*/
DragRef.prototype._getPointerPositionInElement = /**
* Figures out the coordinates at which an element was picked up.
* @private
* @param {?} referenceElement Element that initiated the dragging.
* @param {?} event Event that initiated the dragging.
* @return {?}
*/
function (referenceElement, event) {
/** @type {?} */
var elementRect = this._rootElement.getBoundingClientRect();
/** @type {?} */
var handleElement = referenceElement === this._rootElement ? null : referenceElement;
/** @type {?} */
var referenceRect = handleElement ? handleElement.getBoundingClientRect() : elementRect;
/** @type {?} */
var point = isTouchEvent(event) ? event.targetTouches[0] : event;
/** @type {?} */
var x = point.pageX - referenceRect.left - this._scrollPosition.left;
/** @type {?} */
var y = point.pageY - referenceRect.top - this._scrollPosition.top;
return {
x: referenceRect.left - elementRect.left + x,
y: referenceRect.top - elementRect.top + y
};
};
/** Determines the point of the page that was touched by the user. */
/**
* Determines the point of the page that was touched by the user.
* @private
* @param {?} event
* @return {?}
*/
DragRef.prototype._getPointerPositionOnPage = /**
* Determines the point of the page that was touched by the user.
* @private
* @param {?} event
* @return {?}
*/
function (event) {
// `touches` will be empty for start/end events so we have to fall back to `changedTouches`.
/** @type {?} */
var point = isTouchEvent(event) ? (event.touches[0] || event.changedTouches[0]) : event;
return {
x: point.pageX - this._scrollPosition.left,
y: point.pageY - this._scrollPosition.top
};
};
/** Gets the pointer position on the page, accounting for any position constraints. */
/**
* Gets the pointer position on the page, accounting for any position constraints.
* @private
* @param {?} event
* @return {?}
*/
DragRef.prototype._getConstrainedPointerPosition = /**
* Gets the pointer position on the page, accounting for any position constraints.
* @private
* @param {?} event
* @return {?}
*/
function (event) {
/** @type {?} */
var point = this._getPointerPositionOnPage(event);
/** @type {?} */
var constrainedPoint = this.constrainPosition ? this.constrainPosition(point, this) : point;
/** @type {?} */
var dropContainerLock = this._dropContainer ? this._dropContainer.lockAxis : null;
if (this.lockAxis === 'x' || dropContainerLock === 'x') {
constrainedPoint.y = this._pickupPositionOnPage.y;
}
else if (this.lockAxis === 'y' || dropContainerLock === 'y') {
constrainedPoint.x = this._pickupPositionOnPage.x;
}
if (this._boundaryRect) {
var _a = this._pickupPositionInElement, pickupX = _a.x, pickupY = _a.y;
/** @type {?} */
var boundaryRect = this._boundaryRect;
/** @type {?} */
var previewRect = (/** @type {?} */ (this._previewRect));
/** @type {?} */
var minY = boundaryRect.top + pickupY;
/** @type {?} */
var maxY = boundaryRect.bottom - (previewRect.height - pickupY);
/** @type {?} */
var minX = boundaryRect.left + pickupX;
/** @type {?} */
var maxX = boundaryRect.right - (previewRect.width - pickupX);
constrainedPoint.x = clamp(constrainedPoint.x, minX, maxX);
constrainedPoint.y = clamp(constrainedPoint.y, minY, maxY);
}
return constrainedPoint;
};
/** Updates the current drag delta, based on the user's current pointer position on the page. */
/**
* Updates the current drag delta, based on the user's current pointer position on the page.
* @private
* @param {?} pointerPositionOnPage
* @return {?}
*/
DragRef.prototype._updatePointerDirectionDelta = /**
* Updates the current drag delta, based on the user's current pointer position on the page.
* @private
* @param {?} pointerPositionOnPage
* @return {?}
*/
function (pointerPositionOnPage) {
var x = pointerPositionOnPage.x, y = pointerPositionOnPage.y;
/** @type {?} */
var delta = this._pointerDirectionDelta;
/** @type {?} */
var positionSinceLastChange = this._pointerPositionAtLastDirectionChange;
// Amount of pixels the user has dragged since the last time the direction changed.
/** @type {?} */
var changeX = Math.abs(x - positionSinceLastChange.x);
/** @type {?} */
var changeY = Math.abs(y - positionSinceLastChange.y);
// Because we handle pointer events on a per-pixel basis, we don't want the delta
// to change for every pixel, otherwise anything that depends on it can look erratic.
// To make the delta more consistent, we track how much the user has moved since the last
// delta change and we only update it after it has reached a certain threshold.
if (changeX > this._config.pointerDirectionChangeThreshold) {
delta.x = x > positionSinceLastChange.x ? 1 : -1;
positionSinceLastChange.x = x;
}
if (changeY > this._config.pointerDirectionChangeThreshold) {
delta.y = y > positionSinceLastChange.y ? 1 : -1;
positionSinceLastChange.y = y;
}
return delta;
};
/** Toggles the native drag interactions, based on how many handles are registered. */
/**
* Toggles the native drag interactions, based on how many handles are registered.
* @private
* @return {?}
*/
DragRef.prototype._toggleNativeDragInteractions = /**
* Toggles the native drag interactions, based on how many handles are registered.
* @private
* @return {?}
*/
function () {
if (!this._rootElement || !this._handles) {
return;
}
/** @type {?} */
var shouldEnable = this._handles.length > 0 || !this.isDragging();
if (shouldEnable !== this._nativeInteractionsEnabled) {
this._nativeInteractionsEnabled = shouldEnable;
toggleNativeDragInteractions(this._rootElement, shouldEnable);
}
};
/** Removes the manually-added event listeners from the root element. */
/**
* Removes the manually-added event listeners from the root element.
* @private
* @param {?} element
* @return {?}
*/
DragRef.prototype._removeRootElementListeners = /**
* Removes the manually-added event listeners from the root element.
* @private
* @param {?} element
* @return {?}
*/
function (element) {
element.removeEventListener('mousedown', this._pointerDown, activeEventListenerOptions);
element.removeEventListener('touchstart', this._pointerDown, passiveEventListenerOptions);
};
/**
* Applies a `transform` to the root element, taking into account any existing transforms on it.
* @param x New transform value along the X axis.
* @param y New transform value along the Y axis.
*/
/**
* Applies a `transform` to the root element, taking into account any existing transforms on it.
* @private
* @param {?} x New transform value along the X axis.
* @param {?} y New transform value along the Y axis.
* @return {?}
*/
DragRef.prototype._applyRootElementTransform = /**
* Applies a `transform` to the root element, taking into account any existing transforms on it.
* @private
* @param {?} x New transform value along the X axis.
* @param {?} y New transform value along the Y axis.
* @return {?}
*/
function (x, y) {
/** @type {?} */
var transform = getTransform(x, y);
// Cache the previous transform amount only after the first drag sequence, because
// we don't want our own transforms to stack on top of each other.
if (this._initialTransform == null) {
this._initialTransform = this._rootElement.style.transform || '';
}
// Preserve the previous `transform` value, if there was one. Note that we apply our own
// transform before the user's, because things like rotation can affect which direction
// the element will be translated towards.
this._rootElement.style.transform = this._initialTransform ?
transform + ' ' + this._initialTransform : transform;
};
/**
* Gets the distance that the user has dragged during the current drag sequence.
* @param currentPosition Current position of the user's pointer.
*/
/**
* Gets the distance that the user has dragged during the current drag sequence.
* @private
* @param {?} currentPosition Current position of the user's pointer.
* @return {?}
*/
DragRef.prototype._getDragDistance = /**
* Gets the distance that the user has dragged during the current drag sequence.
* @private
* @param {?} currentPosition Current position of the user's pointer.
* @return {?}
*/
function (currentPosition) {
/** @type {?} */
var pickupPosition = this._pickupPositionOnPage;
if (pickupPosition) {
return { x: currentPosition.x - pickupPosition.x, y: currentPosition.y - pickupPosition.y };
}
return { x: 0, y: 0 };
};
return DragRef;
}());
/**
* Gets a 3d `transform` that can be applied to an element.
* @param {?} x Desired position of the element along the X axis.
* @param {?} y Desired position of the element along the Y axis.
* @return {?}
*/
function getTransform(x, y) {
// Round the transforms since some browsers will
// blur the elements for sub-pixel transforms.
return "translate3d(" + Math.round(x) + "px, " + Math.round(y) + "px, 0)";
}
/**
* Creates a deep clone of an element.
* @param {?} node
* @return {?}
*/
function deepCloneNode(node) {
/** @type {?} */
var clone = (/** @type {?} */ (node.cloneNode(true)));
/** @type {?} */
var descendantsWithId = clone.querySelectorAll('[id]');
/** @type {?} */
var descendantCanvases = node.querySelectorAll('canvas');
// Remove the `id` to avoid having multiple elements with the same id on the page.
clone.removeAttribute('id');
for (var i = 0; i < descendantsWithId.length; i++) {
descendantsWithId[i].removeAttribute('id');
}
// `cloneNode` won't transfer the content of `canvas` elements so we have to do it ourselves.
// We match up the cloned canvas to their sources using their index in the DOM.
if (descendantCanvases.length) {
/** @type {?} */
var cloneCanvases = clone.querySelectorAll('canvas');
for (var i = 0; i < descendantCanvases.length; i++) {
/** @type {?} */
var correspondingCloneContext = cloneCanvases[i].getContext('2d');
if (correspondingCloneContext) {
correspondingCloneContext.drawImage(descendantCanvases[i], 0, 0);
}
}
}
return clone;
}
/**
* Clamps a value between a minimum and a maximum.
* @param {?} value
* @param {?} min
* @param {?} max
* @return {?}
*/
function clamp(value, min, max) {
return Math.max(min, Math.min(max, value));
}
/**
* Helper to remove an element from the DOM and to do all the necessary null checks.
* @param {?} element Element to be removed.
* @return {?}
*/
function removeElement(element) {
if (element && element.parentNode) {
element.parentNode.removeChild(element);
}
}
/**
* Determines whether an event is a touch event.
* @param {?} event
* @return {?}
*/
function isTouchEvent(event) {
// This function is called for every pixel that the user has dragged so we need it to be
// as fast as possible. Since we only bind mouse events and touch events, we can assume
// that if the event's name starts with `t`, it's a touch event.
return event.type[0] === 't';
}
/**
* Gets the element into which the drag preview should be inserted.
* @param {?} documentRef
* @return {?}
*/
function getPreviewInsertionPoint(documentRef) {
// We can't use the body if the user is in fullscreen mode,
// because the preview will render under the fullscreen element.
// TODO(crisbeto): dedupe this with the `FullscreenOverlayContainer` eventually.
return documentRef.fullscreenElement ||
documentRef.webkitFullscreenElement ||
documentRef.mozFullScreenElement ||
documentRef.msFullscreenElement ||
documentRef.body;
}
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* Moves an item one index in an array to another.
* @template T
* @param {?} array Array in which to move the item.
* @param {?} fromIndex Starting index of the item.
* @param {?} toIndex Index to which the item should be moved.
* @return {?}
*/
function moveItemInArray(array, fromIndex, toIndex) {
/** @type {?} */
var from = clamp$1(fromIndex, array.length - 1);
/** @type {?} */
var to = clamp$1(toIndex, array.length - 1);
if (from === to) {
return;
}
/** @type {?} */
var target = array[from];
/** @type {?} */
var delta = to < from ? -1 : 1;
for (var i = from; i !== to; i += delta) {
array[i] = array[i + delta];
}
array[to] = target;
}
/**
* Moves an item from one array to another.
* @template T
* @param {?} currentArray Array from which to transfer the item.
* @param {?} targetArray Array into which to put the item.
* @param {?} currentIndex Index of the item in its current array.
* @param {?} targetIndex Index at which to insert the item.
* @return {?}
*/
function transferArrayItem(currentArray, targetArray, currentIndex, targetIndex) {
/** @type {?} */
var from = clamp$1(currentIndex, currentArray.length - 1);
/** @type {?} */
var to = clamp$1(targetIndex, targetArray.length);
if (currentArray.length) {
targetArray.splice(to, 0, currentArray.splice(from, 1)[0]);
}
}
/**
* Copies an item from one array to another, leaving it in its
* original position in current array.
* @template T
* @param {?} currentArray Array from which to copy the item.
* @param {?} targetArray Array into which is copy the item.
* @param {?} currentIndex Index of the item in its current array.
* @param {?} targetIndex Index at which to insert the item.
*
* @return {?}
*/
function copyArrayItem(currentArray, targetArray, currentIndex, targetIndex) {
/** @type {?} */
var to = clamp$1(targetIndex, targetArray.length);
if (currentArray.length) {
targetArray.splice(to, 0, currentArray[currentIndex]);
}
}
/**
* Clamps a number between zero and a maximum.
* @param {?} value
* @param {?} max
* @return {?}
*/
function clamp$1(value, max) {
return Math.max(0, Math.min(max, value));
}
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* Counter used to generate unique ids for drop refs.
* @type {?}
*/
var _uniqueIdCounter = 0;
/**
* Proximity, as a ratio to width/height, at which a
* dragged item will affect the drop container.
* @type {?}
*/
var DROP_PROXIMITY_THRESHOLD = 0.05;
/**
* Proximity, as a ratio to width/height at which to start auto-scrolling the drop list or the
* viewport. The value comes from trying it out manually until it feels right.
* @type {?}
*/
var SCROLL_PROXIMITY_THRESHOLD = 0.05;
/**
* Number of pixels to scroll for each frame when auto-scrolling an element.
* The value comes from trying it out manually until it feels right.
* @type {?}
*/
var AUTO_SCROLL_STEP = 2;
/**
* Reference to a drop list. Used to manipulate or dispose of the container.
* \@docs-private
* @template T
*/
var /**
* Reference to a drop list. Used to manipulate or dispose of the container.
* \@docs-private
* @template T
*/
DropListRef = /** @class */ (function () {
function DropListRef(element, _dragDropRegistry, _document, _ngZone, _viewportRuler) {
var _this = this;
this._dragDropRegistry = _dragDropRegistry;
this._ngZone = _ngZone;
this._viewportRuler = _viewportRuler;
/**
* Unique ID for the drop list.
* @deprecated No longer being used. To be removed.
* \@breaking-change 8.0.0
*/
this.id = "cdk-drop-list-ref-" + _uniqueIdCounter++;
/**
* Whether starting a dragging sequence from this container is disabled.
*/
this.disabled = false;
/**
* Whether sorting items within the list is disabled.
*/
this.sortingDisabled = true;
/**
* Whether auto-scrolling the view when the user
* moves their pointer close to the edges is disabled.
*/
this.autoScrollDisabled = false;
/**
* Function that is used to determine whether an item
* is allowed to be moved into a drop container.
*/
this.enterPredicate = (/**
* @return {?}
*/
function () { return true; });
/**
* Emits right before dragging has started.
*/
this.beforeStarted = new rxjs.Subject();
/**
* Emits when the user has moved a new drag item into this container.
*/
this.entered = new rxjs.Subject();
/**
* Emits when the user removes an item from the container
* by dragging it into another container.
*/
this.exited = new rxjs.Subject();
/**
* Emits when the user drops an item inside the container.
*/
this.dropped = new rxjs.Subject();
/**
* Emits as the user is swapping items while actively dragging.
*/
this.sorted = new rxjs.Subject();
/**
* Whether an item in the list is being dragged.
*/
this._isDragging = false;
/**
* Cache of the dimensions of all the items inside the container.
*/
this._itemPositions = [];
/**
* Keeps track of the container's scroll position.
*/
this._scrollPosition = { top: 0, left: 0 };
/**
* Keeps track of the scroll position of the viewport.
*/
this._viewportScrollPosition = { top: 0, left: 0 };
/**
* Keeps track of the item that was last swapped with the dragged item, as
* well as what direction the pointer was moving in when the swap occured.
*/
this._previousSwap = { drag: (/** @type {?} */ (null)), delta: 0 };
/**
* Drop lists that are connected to the current one.
*/
this._siblings = [];
/**
* Direction in which the list is oriented.
*/
this._orientation = 'vertical';
/**
* Connected siblings that currently have a dragged item.
*/
this._activeSiblings = new Set();
/**
* Layout direction of the drop list.
*/
this._direction = 'ltr';
/**
* Subscription to the window being scrolled.
*/
this._viewportScrollSubscription = rxjs.Subscription.EMPTY;
/**
* Vertical direction in which the list is currently scrolling.
*/
this._verticalScrollDirection = 0 /* NONE */;
/**
* Horizontal direction in which the list is currently scrolling.
*/
this._horizontalScrollDirection = 0 /* NONE */;
/**
* Used to signal to the current auto-scroll sequence when to stop.
*/
this._stopScrollTimers = new rxjs.Subject();
/**
* Handles the container being scrolled. Has to be an arrow function to preserve the context.
*/
this._handleScroll = (/**
* @return {?}
*/
function () {
if (!_this.isDragging()) {
return;
}
/** @type {?} */
var element = coercion.coerceElement(_this.element);
_this._updateAfterScroll(_this._scrollPosition, element.scrollTop, element.scrollLeft);
});
/**
* Starts the interval that'll auto-scroll the element.
*/
this._startScrollInterval = (/**
* @return {?}
*/
function () {
_this._stopScrolling();
rxjs.interval(0, rxjs.animationFrameScheduler)
.pipe(operators.takeUntil(_this._stopScrollTimers))
.subscribe((/**
* @return {?}
*/
function () {
/** @type {?} */
var node = _this._scrollNode;
if (_this._verticalScrollDirection === 1 /* UP */) {
incrementVerticalScroll(node, -AUTO_SCROLL_STEP);
}
else if (_this._verticalScrollDirection === 2 /* DOWN */) {
incrementVerticalScroll(node, AUTO_SCROLL_STEP);
}
if (_this._horizontalScrollDirection === 1 /* LEFT */) {
incrementHorizontalScroll(node, -AUTO_SCROLL_STEP);
}
else if (_this._horizontalScrollDirection === 2 /* RIGHT */) {
incrementHorizontalScroll(node, AUTO_SCROLL_STEP);
}
}));
});
_dragDropRegistry.registerDropContainer(this);
this._document = _document;
this.element = element instanceof core.ElementRef ? element.nativeElement : element;
}
/** Removes the drop list functionality from the DOM element. */
/**
* Removes the drop list functionality from the DOM element.
* @return {?}
*/
DropListRef.prototype.dispose = /**
* Removes the drop list functionality from the DOM element.
* @return {?}
*/
function () {
this._stopScrolling();
this._stopScrollTimers.complete();
this._removeListeners();
this.beforeStarted.complete();
this.entered.complete();
this.exited.complete();
this.dropped.complete();
this.sorted.complete();
this._activeSiblings.clear();
this._scrollNode = (/** @type {?} */ (null));
this._dragDropRegistry.removeDropContainer(this);
};
/** Whether an item from this list is currently being dragged. */
/**
* Whether an item from this list is currently being dragged.
* @return {?}
*/
DropListRef.prototype.isDragging = /**
* Whether an item from this list is currently being dragged.
* @return {?}
*/
function () {
return this._isDragging;
};
/** Starts dragging an item. */
/**
* Starts dragging an item.
* @return {?}
*/
DropListRef.prototype.start = /**
* Starts dragging an item.
* @return {?}
*/
function () {
var _this = this;
/** @type {?} */
var element = coercion.coerceElement(this.element);
this.beforeStarted.next();
this._isDragging = true;
this._cacheItems();
this._siblings.forEach((/**
* @param {?} sibling
* @return {?}
*/
function (sibling) { return sibling._startReceiving(_this); }));
this._removeListeners();
// @breaking-change 9.0.0 Remove check for _ngZone once it's marked as a required param.
if (this._ngZone) {
this._ngZone.runOutsideAngular((/**
* @return {?}
*/
function () { return element.addEventListener('scroll', _this._handleScroll); }));
}
else {
element.addEventListener('scroll', this._handleScroll);
}
// @breaking-change 9.0.0 Remove check for _viewportRuler once it's marked as a required param.
if (this._viewportRuler) {
this._viewportScrollPosition = this._viewportRuler.getViewportScrollPosition();
this._viewportScrollSubscription = this._dragDropRegistry.scroll.subscribe((/**
* @return {?}
*/
function () {
if (_this.isDragging()) {
/** @type {?} */
var newPosition = (/** @type {?} */ (_this._viewportRuler)).getViewportScrollPosition();
_this._updateAfterScroll(_this._viewportScrollPosition, newPosition.top, newPosition.left, _this._clientRect);
}
}));
}
};
/**
* Emits an event to indicate that the user moved an item into the container.
* @param item Item that was moved into the container.
* @param pointerX Position of the item along the X axis.
* @param pointerY Position of the item along the Y axis.
*/
/**
* Emits an event to indicate that the user moved an item into the container.
* @param {?} item Item that was moved into the container.
* @param {?} pointerX Position of the item along the X axis.
* @param {?} pointerY Position of the item along the Y axis.
* @return {?}
*/
DropListRef.prototype.enter = /**
* Emits an event to indicate that the user moved an item into the container.
* @param {?} item Item that was moved into the container.
* @param {?} pointerX Position of the item along the X axis.
* @param {?} pointerY Position of the item along the Y axis.
* @return {?}
*/
function (item, pointerX, pointerY) {
this.start();
// If sorting is disabled, we want the item to return to its starting
// position if the user is returning it to its initial container.
/** @type {?} */
var newIndex = this.sortingDisabled ? this._draggables.indexOf(item) : -1;
if (newIndex === -1) {
// We use the coordinates of where the item entered the drop
// zone to figure out at which index it should be inserted.
newIndex = this._getItemIndexFromPointerPosition(item, pointerX, pointerY);
}
/** @type {?} */
var activeDraggables = this._activeDraggables;
/** @type {?} */
var currentIndex = activeDraggables.indexOf(item);
/** @type {?} */
var placeholder = item.getPlaceholderElement();
/** @type {?} */
var newPositionReference = activeDraggables[newIndex];
// If the item at the new position is the same as the item that is being dragged,
// it means that we're trying to restore the item to its initial position. In this
// case we should use the next item from the list as the reference.
if (newPositionReference === item) {
newPositionReference = activeDraggables[newIndex + 1];
}
// Since the item may be in the `activeDraggables` already (e.g. if the user dragged it
// into another container and back again), we have to ensure that it isn't duplicated.
if (currentIndex > -1) {
activeDraggables.splice(currentIndex, 1);
}
// Don't use items that are being dragged as a reference, because
// their element has been moved down to the bottom of the body.
if (newPositionReference && !this._dragDropRegistry.isDragging(newPositionReference)) {
/** @type {?} */
var element = newPositionReference.getRootElement();
(/** @type {?} */ (element.parentElement)).insertBefore(placeholder, element);
activeDraggables.splice(newIndex, 0, item);
}
else {
coercion.coerceElement(this.element).appendChild(placeholder);
activeDraggables.push(item);
}
// The transform needs to be cleared so it doesn't throw off the measurements.
placeholder.style.transform = '';
// Note that the positions were already cached when we called `start` above,
// but we need to refresh them since the amount of items has changed.
this._cacheItemPositions();
this.entered.next({ item: item, container: this, currentIndex: this.getItemIndex(item) });
};
/**
* Removes an item from the container after it was dragged into another container by the user.
* @param item Item that was dragged out.
*/
/**
* Removes an item from the container after it was dragged into another container by the user.
* @param {?} item Item that was dragged out.
* @return {?}
*/
DropListRef.prototype.exit = /**
* Removes an item from the container after it was dragged into another container by the user.
* @param {?} item Item that was dragged out.
* @return {?}
*/
function (item) {
this._reset();
this.exited.next({ item: item, container: this });
};
/**
* Drops an item into this container.
* @param item Item being dropped into the container.
* @param currentIndex Index at which the item should be inserted.
* @param previousContainer Container from which the item got dragged in.
* @param isPointerOverContainer Whether the user's pointer was over the
* container when the item was dropped.
* @param distance Distance the user has dragged since the start of the dragging sequence.
* @breaking-change 9.0.0 `distance` parameter to become required.
*/
/**
* Drops an item into this container.
* \@breaking-change 9.0.0 `distance` parameter to become required.
* @param {?} item Item being dropped into the container.
* @param {?} currentIndex Index at which the item should be inserted.
* @param {?} previousContainer Container from which the item got dragged in.
* @param {?} isPointerOverContainer Whether the user's pointer was over the
* container when the item was dropped.
* @param {?=} distance Distance the user has dragged since the start of the dragging sequence.
* @return {?}
*/
DropListRef.prototype.drop = /**
* Drops an item into this container.
* \@breaking-change 9.0.0 `distance` parameter to become required.
* @param {?} item Item being dropped into the container.
* @param {?} currentIndex Index at which the item should be inserted.
* @param {?} previousContainer Container from which the item got dragged in.
* @param {?} isPointerOverContainer Whether the user's pointer was over the
* container when the item was dropped.
* @param {?=} distance Distance the user has dragged since the start of the dragging sequence.
* @return {?}
*/
function (item, currentIndex, previousContainer, isPointerOverContainer, distance) {
if (distance === void 0) { distance = { x: 0, y: 0 }; }
this._reset();
this.dropped.next({
item: item,
currentIndex: currentIndex,
previousIndex: previousContainer.getItemIndex(item),
container: this,
previousContainer: previousContainer,
isPointerOverContainer: isPointerOverContainer,
distance: distance
});
};
/**
* Sets the draggable items that are a part of this list.
* @param items Items that are a part of this list.
*/
/**
* Sets the draggable items that are a part of this list.
* @template THIS
* @this {THIS}
* @param {?} items Items that are a part of this list.
* @return {THIS}
*/
DropListRef.prototype.withItems = /**
* Sets the draggable items that are a part of this list.
* @template THIS
* @this {THIS}
* @param {?} items Items that are a part of this list.
* @return {THIS}
*/
function (items) {
var _this = this;
(/** @type {?} */ (this))._draggables = items;
items.forEach((/**
* @param {?} item
* @return {?}
*/
function (item) { return item._withDropContainer((/** @type {?} */ (_this))); }));
if ((/** @type {?} */ (this)).isDragging()) {
(/** @type {?} */ (this))._cacheItems();
}
return (/** @type {?} */ (this));
};
/** Sets the layout direction of the drop list. */
/**
* Sets the layout direction of the drop list.
* @template THIS
* @this {THIS}
* @param {?} direction
* @return {THIS}
*/
DropListRef.prototype.withDirection = /**
* Sets the layout direction of the drop list.
* @template THIS
* @this {THIS}
* @param {?} direction
* @return {THIS}
*/
function (direction) {
(/** @type {?} */ (this))._direction = direction;
return (/** @type {?} */ (this));
};
/**
* Sets the containers that are connected to this one. When two or more containers are
* connected, the user will be allowed to transfer items between them.
* @param connectedTo Other containers that the current containers should be connected to.
*/
/**
* Sets the containers that are connected to this one. When two or more containers are
* connected, the user will be allowed to transfer items between them.
* @template THIS
* @this {THIS}
* @param {?} connectedTo Other containers that the current containers should be connected to.
* @return {THIS}
*/
DropListRef.prototype.connectedTo = /**
* Sets the containers that are connected to this one. When two or more containers are
* connected, the user will be allowed to transfer items between them.
* @template THIS
* @this {THIS}
* @param {?} connectedTo Other containers that the current containers should be connected to.
* @return {THIS}
*/
function (connectedTo) {
(/** @type {?} */ (this))._siblings = connectedTo.slice();
return (/** @type {?} */ (this));
};
/**
* Sets the orientation of the container.
* @param orientation New orientation for the container.
*/
/**
* Sets the orientation of the container.
* @template THIS
* @this {THIS}
* @param {?} orientation New orientation for the container.
* @return {THIS}
*/
DropListRef.prototype.withOrientation = /**
* Sets the orientation of the container.
* @template THIS
* @this {THIS}
* @param {?} orientation New orientation for the container.
* @return {THIS}
*/
function (orientation) {
(/** @type {?} */ (this))._orientation = orientation;
return (/** @type {?} */ (this));
};
/**
* Figures out the index of an item in the container.
* @param item Item whose index should be determined.
*/
/**
* Figures out the index of an item in the container.
* @param {?} item Item whose index should be determined.
* @return {?}
*/
DropListRef.prototype.getItemIndex = /**
* Figures out the index of an item in the container.
* @param {?} item Item whose index should be determined.
* @return {?}
*/
function (item) {
if (!this._isDragging) {
return this._draggables.indexOf(item);
}
// Items are sorted always by top/left in the cache, however they flow differently in RTL.
// The rest of the logic still stands no matter what orientation we're in, however
// we need to invert the array when determining the index.
/** @type {?} */
var items = this._orientation === 'horizontal' && this._direction === 'rtl' ?
this._itemPositions.slice().reverse() : this._itemPositions;
return findIndex(items, (/**
* @param {?} currentItem
* @return {?}
*/
function (currentItem) { return currentItem.drag === item; }));
};
/**
* Whether the list is able to receive the item that
* is currently being dragged inside a connected drop list.
*/
/**
* Whether the list is able to receive the item that
* is currently being dragged inside a connected drop list.
* @return {?}
*/
DropListRef.prototype.isReceiving = /**
* Whether the list is able to receive the item that
* is currently being dragged inside a connected drop list.
* @return {?}
*/
function () {
return this._activeSiblings.size > 0;
};
/**
* Sorts an item inside the container based on its position.
* @param item Item to be sorted.
* @param pointerX Position of the item along the X axis.
* @param pointerY Position of the item along the Y axis.
* @param pointerDelta Direction in which the pointer is moving along each axis.
*/
/**
* Sorts an item inside the container based on its position.
* @param {?} item Item to be sorted.
* @param {?} pointerX Position of the item along the X axis.
* @param {?} pointerY Position of the item along the Y axis.
* @param {?} pointerDelta Direction in which the pointer is moving along each axis.
* @return {?}
*/
DropListRef.prototype._sortItem = /**
* Sorts an item inside the container based on its position.
* @param {?} item Item to be sorted.
* @param {?} pointerX Position of the item along the X axis.
* @param {?} pointerY Position of the item along the Y axis.
* @param {?} pointerDelta Direction in which the pointer is moving along each axis.
* @return {?}
*/
function (item, pointerX, pointerY, pointerDelta) {
// Don't sort the item if sorting is disabled or it's out of range.
if (this.sortingDisabled || !this._isPointerNearDropContainer(pointerX, pointerY)) {
return;
}
/** @type {?} */
var siblings = this._itemPositions;
/** @type {?} */
var newIndex = this._getItemIndexFromPointerPosition(item, pointerX, pointerY, pointerDelta);
if (newIndex === -1 && siblings.length > 0) {
return;
}
/** @type {?} */
var isHorizontal = this._orientation === 'horizontal';
/** @type {?} */
var currentIndex = findIndex(siblings, (/**
* @param {?} currentItem
* @return {?}
*/
function (currentItem) { return currentItem.drag === item; }));
/** @type {?} */
var siblingAtNewPosition = siblings[newIndex];
/** @type {?} */
var currentPosition = siblings[currentIndex].clientRect;
/** @type {?} */
var newPosition = siblingAtNewPosition.clientRect;
/** @type {?} */
var delta = currentIndex > newIndex ? 1 : -1;
this._previousSwap.drag = siblingAtNewPosition.drag;
this._previousSwap.delta = isHorizontal ? pointerDelta.x : pointerDelta.y;
// How many pixels the item's placeholder should be offset.
/** @type {?} */
var itemOffset = this._getItemOffsetPx(currentPosition, newPosition, delta);
// How many pixels all the other items should be offset.
/** @type {?} */
var siblingOffset = this._getSiblingOffsetPx(currentIndex, siblings, delta);
// Save the previous order of the items before moving the item to its new index.
// We use this to check whether an item has been moved as a result of the sorting.
/** @type {?} */
var oldOrder = siblings.slice();
// Shuffle the array in place.
moveItemInArray(siblings, currentIndex, newIndex);
this.sorted.next({
previousIndex: currentIndex,
currentIndex: newIndex,
container: this,
item: item
});
siblings.forEach((/**
* @param {?} sibling
* @param {?} index
* @return {?}
*/
function (sibling, index) {
// Don't do anything if the position hasn't changed.
if (oldOrder[index] === sibling) {
return;
}
/** @type {?} */
var isDraggedItem = sibling.drag === item;
/** @type {?} */
var offset = isDraggedItem ? itemOffset : siblingOffset;
/** @type {?} */
var elementToOffset = isDraggedItem ? item.getPlaceholderElement() :
sibling.drag.getRootElement();
// Update the offset to reflect the new position.
sibling.offset += offset;
// Since we're moving the items with a `transform`, we need to adjust their cached
// client rects to reflect their new position, as well as swap their positions in the cache.
// Note that we shouldn't use `getBoundingClientRect` here to update the cache, because the
// elements may be mid-animation which will give us a wrong result.
if (isHorizontal) {
// Round the transforms since some browsers will
// blur the elements, for sub-pixel transforms.
elementToOffset.style.transform = "translate3d(" + Math.round(sibling.offset) + "px, 0, 0)";
adjustClientRect(sibling.clientRect, 0, offset);
}
else {
elementToOffset.style.transform = "translate3d(0, " + Math.round(sibling.offset) + "px, 0)";
adjustClientRect(sibling.clientRect, offset, 0);
}
}));
};
/**
* Checks whether the user's pointer is close to the edges of either the
* viewport or the drop list and starts the auto-scroll sequence.
* @param pointerX User's pointer position along the x axis.
* @param pointerY User's pointer position along the y axis.
*/
/**
* Checks whether the user's pointer is close to the edges of either the
* viewport or the drop list and starts the auto-scroll sequence.
* @param {?} pointerX User's pointer position along the x axis.
* @param {?} pointerY User's pointer position along the y axis.
* @return {?}
*/
DropListRef.prototype._startScrollingIfNecessary = /**
* Checks whether the user's pointer is close to the edges of either the
* viewport or the drop list and starts the auto-scroll sequence.
* @param {?} pointerX User's pointer position along the x axis.
* @param {?} pointerY User's pointer position along the y axis.
* @return {?}
*/
function (pointerX, pointerY) {
if (this.autoScrollDisabled) {
return;
}
/** @type {?} */
var scrollNode;
/** @type {?} */
var verticalScrollDirection = 0 /* NONE */;
/** @type {?} */
var horizontalScrollDirection = 0 /* NONE */;
// @breaking-change 9.0.0 Remove null check for _viewportRuler once it's a required parameter.
// Check whether we're in range to scroll the viewport.
if (this._viewportRuler) {
var _a = this._viewportRuler.getViewportSize(), width = _a.width, height = _a.height;
/** @type {?} */
var clientRect = { width: width, height: height, top: 0, right: width, bottom: height, left: 0 };
verticalScrollDirection = getVerticalScrollDirection(clientRect, pointerY);
horizontalScrollDirection = getHorizontalScrollDirection(clientRect, pointerX);
scrollNode = window;
}
// If we couldn't find a scroll direction based on the
// window, try with the container, if the pointer is close by.
if (!verticalScrollDirection && !horizontalScrollDirection &&
this._isPointerNearDropContainer(pointerX, pointerY)) {
verticalScrollDirection = getVerticalScrollDirection(this._clientRect, pointerY);
horizontalScrollDirection = getHorizontalScrollDirection(this._clientRect, pointerX);
scrollNode = coercion.coerceElement(this.element);
}
// TODO(crisbeto): we also need to account for whether the view or element are scrollable in
// the first place. With the current approach we'll still try to scroll them, but it just
// won't do anything. The only case where this is relevant is that if we have a scrollable
// list close to the viewport edge where the viewport isn't scrollable. In this case the
// we'll be trying to scroll the viewport rather than the list.
if (scrollNode && (verticalScrollDirection !== this._verticalScrollDirection ||
horizontalScrollDirection !== this._horizontalScrollDirection ||
scrollNode !== this._scrollNode)) {
this._verticalScrollDirection = verticalScrollDirection;
this._horizontalScrollDirection = horizontalScrollDirection;
this._scrollNode = scrollNode;
if ((verticalScrollDirection || horizontalScrollDirection) && scrollNode) {
// @breaking-change 9.0.0 Remove null check for `_ngZone` once it is made required.
if (this._ngZone) {
this._ngZone.runOutsideAngular(this._startScrollInterval);
}
else {
this._startScrollInterval();
}
}
else {
this._stopScrolling();
}
}
};
/** Stops any currently-running auto-scroll sequences. */
/**
* Stops any currently-running auto-scroll sequences.
* @return {?}
*/
DropListRef.prototype._stopScrolling = /**
* Stops any currently-running auto-scroll sequences.
* @return {?}
*/
function () {
this._stopScrollTimers.next();
};
/** Caches the position of the drop list. */
/**
* Caches the position of the drop list.
* @private
* @return {?}
*/
DropListRef.prototype._cacheOwnPosition = /**
* Caches the position of the drop list.
* @private
* @return {?}
*/
function () {
/** @type {?} */
var element = coercion.coerceElement(this.element);
this._clientRect = getMutableClientRect(element);
this._scrollPosition = { top: element.scrollTop, left: element.scrollLeft };
};
/** Refreshes the position cache of the items and sibling containers. */
/**
* Refreshes the position cache of the items and sibling containers.
* @private
* @return {?}
*/
DropListRef.prototype._cacheItemPositions = /**
* Refreshes the position cache of the items and sibling containers.
* @private
* @return {?}
*/
function () {
var _this = this;
/** @type {?} */
var isHorizontal = this._orientation === 'horizontal';
this._itemPositions = this._activeDraggables.map((/**
* @param {?} drag
* @return {?}
*/
function (drag) {
/** @type {?} */
var elementToMeasure = _this._dragDropRegistry.isDragging(drag) ?
// If the element is being dragged, we have to measure the
// placeholder, because the element is hidden.
drag.getPlaceholderElement() :
drag.getRootElement();
return { drag: drag, offset: 0, clientRect: getMutableClientRect(elementToMeasure) };
})).sort((/**
* @param {?} a
* @param {?} b
* @return {?}
*/
function (a, b) {
return isHorizontal ? a.clientRect.left - b.clientRect.left :
a.clientRect.top - b.clientRect.top;
}));
};
/** Resets the container to its initial state. */
/**
* Resets the container to its initial state.
* @private
* @return {?}
*/
DropListRef.prototype._reset = /**
* Resets the container to its initial state.
* @private
* @return {?}
*/
function () {
var _this = this;
this._isDragging = false;
// TODO(crisbeto): may have to wait for the animations to finish.
this._activeDraggables.forEach((/**
* @param {?} item
* @return {?}
*/
function (item) { return item.getRootElement().style.transform = ''; }));
this._siblings.forEach((/**
* @param {?} sibling
* @return {?}
*/
function (sibling) { return sibling._stopReceiving(_this); }));
this._activeDraggables = [];
this._itemPositions = [];
this._previousSwap.drag = null;
this._previousSwap.delta = 0;
this._stopScrolling();
this._removeListeners();
};
/**
* Gets the offset in pixels by which the items that aren't being dragged should be moved.
* @param currentIndex Index of the item currently being dragged.
* @param siblings All of the items in the list.
* @param delta Direction in which the user is moving.
*/
/**
* Gets the offset in pixels by which the items that aren't being dragged should be moved.
* @private
* @param {?} currentIndex Index of the item currently being dragged.
* @param {?} siblings All of the items in the list.
* @param {?} delta Direction in which the user is moving.
* @return {?}
*/
DropListRef.prototype._getSiblingOffsetPx = /**
* Gets the offset in pixels by which the items that aren't being dragged should be moved.
* @private
* @param {?} currentIndex Index of the item currently being dragged.
* @param {?} siblings All of the items in the list.
* @param {?} delta Direction in which the user is moving.
* @return {?}
*/
function (currentIndex, siblings, delta) {
/** @type {?} */
var isHorizontal = this._orientation === 'horizontal';
/** @type {?} */
var currentPosition = siblings[currentIndex].clientRect;
/** @type {?} */
var immediateSibling = siblings[currentIndex + delta * -1];
/** @type {?} */
var siblingOffset = currentPosition[isHorizontal ? 'width' : 'height'] * delta;
if (immediateSibling) {
/** @type {?} */
var start = isHorizontal ? 'left' : 'top';
/** @type {?} */
var end = isHorizontal ? 'right' : 'bottom';
// Get the spacing between the start of the current item and the end of the one immediately
// after it in the direction in which the user is dragging, or vice versa. We add it to the
// offset in order to push the element to where it will be when it's inline and is influenced
// by the `margin` of its siblings.
if (delta === -1) {
siblingOffset -= immediateSibling.clientRect[start] - currentPosition[end];
}
else {
siblingOffset += currentPosition[start] - immediateSibling.clientRect[end];
}
}
return siblingOffset;
};
/**
* Checks whether the pointer coordinates are close to the drop container.
* @param pointerX Coordinates along the X axis.
* @param pointerY Coordinates along the Y axis.
*/
/**
* Checks whether the pointer coordinates are close to the drop container.
* @private
* @param {?} pointerX Coordinates along the X axis.
* @param {?} pointerY Coordinates along the Y axis.
* @return {?}
*/
DropListRef.prototype._isPointerNearDropContainer = /**
* Checks whether the pointer coordinates are close to the drop container.
* @private
* @param {?} pointerX Coordinates along the X axis.
* @param {?} pointerY Coordinates along the Y axis.
* @return {?}
*/
function (pointerX, pointerY) {
var _a = this._clientRect, top = _a.top, right = _a.right, bottom = _a.bottom, left = _a.left, width = _a.width, height = _a.height;
/** @type {?} */
var xThreshold = width * DROP_PROXIMITY_THRESHOLD;
/** @type {?} */
var yThreshold = height * DROP_PROXIMITY_THRESHOLD;
return pointerY > top - yThreshold && pointerY < bottom + yThreshold &&
pointerX > left - xThreshold && pointerX < right + xThreshold;
};
/**
* Gets the offset in pixels by which the item that is being dragged should be moved.
* @param currentPosition Current position of the item.
* @param newPosition Position of the item where the current item should be moved.
* @param delta Direction in which the user is moving.
*/
/**
* Gets the offset in pixels by which the item that is being dragged should be moved.
* @private
* @param {?} currentPosition Current position of the item.
* @param {?} newPosition Position of the item where the current item should be moved.
* @param {?} delta Direction in which the user is moving.
* @return {?}
*/
DropListRef.prototype._getItemOffsetPx = /**
* Gets the offset in pixels by which the item that is being dragged should be moved.
* @private
* @param {?} currentPosition Current position of the item.
* @param {?} newPosition Position of the item where the current item should be moved.
* @param {?} delta Direction in which the user is moving.
* @return {?}
*/
function (currentPosition, newPosition, delta) {
/** @type {?} */
var isHorizontal = this._orientation === 'horizontal';
/** @type {?} */
var itemOffset = isHorizontal ? newPosition.left - currentPosition.left :
newPosition.top - currentPosition.top;
// Account for differences in the item width/height.
if (delta === -1) {
itemOffset += isHorizontal ? newPosition.width - currentPosition.width :
newPosition.height - currentPosition.height;
}
return itemOffset;
};
/**
* Gets the index of an item in the drop container, based on the position of the user's pointer.
* @param item Item that is being sorted.
* @param pointerX Position of the user's pointer along the X axis.
* @param pointerY Position of the user's pointer along the Y axis.
* @param delta Direction in which the user is moving their pointer.
*/
/**
* Gets the index of an item in the drop container, based on the position of the user's pointer.
* @private
* @param {?} item Item that is being sorted.
* @param {?} pointerX Position of the user's pointer along the X axis.
* @param {?} pointerY Position of the user's pointer along the Y axis.
* @param {?=} delta Direction in which the user is moving their pointer.
* @return {?}
*/
DropListRef.prototype._getItemIndexFromPointerPosition = /**
* Gets the index of an item in the drop container, based on the position of the user's pointer.
* @private
* @param {?} item Item that is being sorted.
* @param {?} pointerX Position of the user's pointer along the X axis.
* @param {?} pointerY Position of the user's pointer along the Y axis.
* @param {?=} delta Direction in which the user is moving their pointer.
* @return {?}
*/
function (item, pointerX, pointerY, delta) {
var _this = this;
/** @type {?} */
var isHorizontal = this._orientation === 'horizontal';
return findIndex(this._itemPositions, (/**
* @param {?} __0
* @param {?} _
* @param {?} array
* @return {?}
*/
function (_a, _, array) {
var drag = _a.drag, clientRect = _a.clientRect;
if (drag === item) {
// If there's only one item left in the container, it must be
// the dragged item itself so we use it as a reference.
return array.length < 2;
}
if (delta) {
/** @type {?} */
var direction = isHorizontal ? delta.x : delta.y;
// If the user is still hovering over the same item as last time, and they didn't change
// the direction in which they're dragging, we don't consider it a direction swap.
if (drag === _this._previousSwap.drag && direction === _this._previousSwap.delta) {
return false;
}
}
return isHorizontal ?
// Round these down since most browsers report client rects with
// sub-pixel precision, whereas the pointer coordinates are rounded to pixels.
pointerX >= Math.floor(clientRect.left) && pointerX <= Math.floor(clientRect.right) :
pointerY >= Math.floor(clientRect.top) && pointerY <= Math.floor(clientRect.bottom);
}));
};
/** Caches the current items in the list and their positions. */
/**
* Caches the current items in the list and their positions.
* @private
* @return {?}
*/
DropListRef.prototype._cacheItems = /**
* Caches the current items in the list and their positions.
* @private
* @return {?}
*/
function () {
this._activeDraggables = this._draggables.slice();
this._cacheItemPositions();
this._cacheOwnPosition();
};
/**
* Updates the internal state of the container after a scroll event has happened.
* @param scrollPosition Object that is keeping track of the scroll position.
* @param newTop New top scroll position.
* @param newLeft New left scroll position.
* @param extraClientRect Extra `ClientRect` object that should be updated, in addition to the
* ones of the drag items. Useful when the viewport has been scrolled and we also need to update
* the `ClientRect` of the list.
*/
/**
* Updates the internal state of the container after a scroll event has happened.
* @private
* @param {?} scrollPosition Object that is keeping track of the scroll position.
* @param {?} newTop New top scroll position.
* @param {?} newLeft New left scroll position.
* @param {?=} extraClientRect Extra `ClientRect` object that should be updated, in addition to the
* ones of the drag items. Useful when the viewport has been scrolled and we also need to update
* the `ClientRect` of the list.
* @return {?}
*/
DropListRef.prototype._updateAfterScroll = /**
* Updates the internal state of the container after a scroll event has happened.
* @private
* @param {?} scrollPosition Object that is keeping track of the scroll position.
* @param {?} newTop New top scroll position.
* @param {?} newLeft New left scroll position.
* @param {?=} extraClientRect Extra `ClientRect` object that should be updated, in addition to the
* ones of the drag items. Useful when the viewport has been scrolled and we also need to update
* the `ClientRect` of the list.
* @return {?}
*/
function (scrollPosition, newTop, newLeft, extraClientRect) {
var _this = this;
/** @type {?} */
var topDifference = scrollPosition.top - newTop;
/** @type {?} */
var leftDifference = scrollPosition.left - newLeft;
if (extraClientRect) {
adjustClientRect(extraClientRect, topDifference, leftDifference);
}
// Since we know the amount that the user has scrolled we can shift all of the client rectangles
// ourselves. This is cheaper than re-measuring everything and we can avoid inconsistent
// behavior where we might be measuring the element before its position has changed.
this._itemPositions.forEach((/**
* @param {?} __0
* @return {?}
*/
function (_a) {
var clientRect = _a.clientRect;
adjustClientRect(clientRect, topDifference, leftDifference);
}));
// We need two loops for this, because we want all of the cached
// positions to be up-to-date before we re-sort the item.
this._itemPositions.forEach((/**
* @param {?} __0
* @return {?}
*/
function (_a) {
var drag = _a.drag;
if (_this._dragDropRegistry.isDragging(drag)) {
// We need to re-sort the item manually, because the pointer move
// events won't be dispatched while the user is scrolling.
drag._sortFromLastPointerPosition();
}
}));
scrollPosition.top = newTop;
scrollPosition.left = newLeft;
};
/** Removes the event listeners associated with this drop list. */
/**
* Removes the event listeners associated with this drop list.
* @private
* @return {?}
*/
DropListRef.prototype._removeListeners = /**
* Removes the event listeners associated with this drop list.
* @private
* @return {?}
*/
function () {
coercion.coerceElement(this.element).removeEventListener('scroll', this._handleScroll);
this._viewportScrollSubscription.unsubscribe();
};
/**
* Checks whether the user's pointer is positioned over the container.
* @param x Pointer position along the X axis.
* @param y Pointer position along the Y axis.
*/
/**
* Checks whether the user's pointer is positioned over the container.
* @param {?} x Pointer position along the X axis.
* @param {?} y Pointer position along the Y axis.
* @return {?}
*/
DropListRef.prototype._isOverContainer = /**
* Checks whether the user's pointer is positioned over the container.
* @param {?} x Pointer position along the X axis.
* @param {?} y Pointer position along the Y axis.
* @return {?}
*/
function (x, y) {
return isInsideClientRect(this._clientRect, x, y);
};
/**
* Figures out whether an item should be moved into a sibling
* drop container, based on its current position.
* @param item Drag item that is being moved.
* @param x Position of the item along the X axis.
* @param y Position of the item along the Y axis.
*/
/**
* Figures out whether an item should be moved into a sibling
* drop container, based on its current position.
* @param {?} item Drag item that is being moved.
* @param {?} x Position of the item along the X axis.
* @param {?} y Position of the item along the Y axis.
* @return {?}
*/
DropListRef.prototype._getSiblingContainerFromPosition = /**
* Figures out whether an item should be moved into a sibling
* drop container, based on its current position.
* @param {?} item Drag item that is being moved.
* @param {?} x Position of the item along the X axis.
* @param {?} y Position of the item along the Y axis.
* @return {?}
*/
function (item, x, y) {
return this._siblings.find((/**
* @param {?} sibling
* @return {?}
*/
function (sibling) { return sibling._canReceive(item, x, y); }));
};
/**
* Checks whether the drop list can receive the passed-in item.
* @param item Item that is being dragged into the list.
* @param x Position of the item along the X axis.
* @param y Position of the item along the Y axis.
*/
/**
* Checks whether the drop list can receive the passed-in item.
* @param {?} item Item that is being dragged into the list.
* @param {?} x Position of the item along the X axis.
* @param {?} y Position of the item along the Y axis.
* @return {?}
*/
DropListRef.prototype._canReceive = /**
* Checks whether the drop list can receive the passed-in item.
* @param {?} item Item that is being dragged into the list.
* @param {?} x Position of the item along the X axis.
* @param {?} y Position of the item along the Y axis.
* @return {?}
*/
function (item, x, y) {
if (!this.enterPredicate(item, this) || !isInsideClientRect(this._clientRect, x, y)) {
return false;
}
/** @type {?} */
var elementFromPoint = (/** @type {?} */ (this._document.elementFromPoint(x, y)));
// If there's no element at the pointer position, then
// the client rect is probably scrolled out of the view.
if (!elementFromPoint) {
return false;
}
/** @type {?} */
var nativeElement = coercion.coerceElement(this.element);
// The `ClientRect`, that we're using to find the container over which the user is
// hovering, doesn't give us any information on whether the element has been scrolled
// out of the view or whether it's overlapping with other containers. This means that
// we could end up transferring the item into a container that's invisible or is positioned
// below another one. We use the result from `elementFromPoint` to get the top-most element
// at the pointer position and to find whether it's one of the intersecting drop containers.
return elementFromPoint === nativeElement || nativeElement.contains(elementFromPoint);
};
/**
* Called by one of the connected drop lists when a dragging sequence has started.
* @param sibling Sibling in which dragging has started.
*/
/**
* Called by one of the connected drop lists when a dragging sequence has started.
* @param {?} sibling Sibling in which dragging has started.
* @return {?}
*/
DropListRef.prototype._startReceiving = /**
* Called by one of the connected drop lists when a dragging sequence has started.
* @param {?} sibling Sibling in which dragging has started.
* @return {?}
*/
function (sibling) {
/** @type {?} */
var activeSiblings = this._activeSiblings;
if (!activeSiblings.has(sibling)) {
activeSiblings.add(sibling);
this._cacheOwnPosition();
}
};
/**
* Called by a connected drop list when dragging has stopped.
* @param sibling Sibling whose dragging has stopped.
*/
/**
* Called by a connected drop list when dragging has stopped.
* @param {?} sibling Sibling whose dragging has stopped.
* @return {?}
*/
DropListRef.prototype._stopReceiving = /**
* Called by a connected drop list when dragging has stopped.
* @param {?} sibling Sibling whose dragging has stopped.
* @return {?}
*/
function (sibling) {
this._activeSiblings.delete(sibling);
};
return DropListRef;
}());
/**
* Updates the top/left positions of a `ClientRect`, as well as their bottom/right counterparts.
* @param {?} clientRect `ClientRect` that should be updated.
* @param {?} top Amount to add to the `top` position.
* @param {?} left Amount to add to the `left` position.
* @return {?}
*/
function adjustClientRect(clientRect, top, left) {
clientRect.top += top;
clientRect.bottom = clientRect.top + clientRect.height;
clientRect.left += left;
clientRect.right = clientRect.left + clientRect.width;
}
/**
* Finds the index of an item that matches a predicate function. Used as an equivalent
* of `Array.prototype.findIndex` which isn't part of the standard Google typings.
* @template T
* @param {?} array Array in which to look for matches.
* @param {?} predicate Function used to determine whether an item is a match.
* @return {?}
*/
function findIndex(array, predicate) {
for (var i = 0; i < array.length; i++) {
if (predicate(array[i], i, array)) {
return i;
}
}
return -1;
}
/**
* Checks whether some coordinates are within a `ClientRect`.
* @param {?} clientRect ClientRect that is being checked.
* @param {?} x Coordinates along the X axis.
* @param {?} y Coordinates along the Y axis.
* @return {?}
*/
function isInsideClientRect(clientRect, x, y) {
var top = clientRect.top, bottom = clientRect.bottom, left = clientRect.left, right = clientRect.right;
return y >= top && y <= bottom && x >= left && x <= right;
}
/**
* Gets a mutable version of an element's bounding `ClientRect`.
* @param {?} element
* @return {?}
*/
function getMutableClientRect(element) {
/** @type {?} */
var clientRect = element.getBoundingClientRect();
// We need to clone the `clientRect` here, because all the values on it are readonly
// and we need to be able to update them. Also we can't use a spread here, because
// the values on a `ClientRect` aren't own properties. See:
// https://developer.mozilla.org/en-US/docs/Web/API/Element/getBoundingClientRect#Notes
return {
top: clientRect.top,
right: clientRect.right,
bottom: clientRect.bottom,
left: clientRect.left,
width: clientRect.width,
height: clientRect.height
};
}
/**
* Increments the vertical scroll position of a node.
* @param {?} node Node whose scroll position should change.
* @param {?} amount Amount of pixels that the `node` should be scrolled.
* @return {?}
*/
function incrementVerticalScroll(node, amount) {
if (node === window) {
((/** @type {?} */ (node))).scrollBy(0, amount);
}
else {
// Ideally we could use `Element.scrollBy` here as well, but IE and Edge don't support it.
((/** @type {?} */ (node))).scrollTop += amount;
}
}
/**
* Increments the horizontal scroll position of a node.
* @param {?} node Node whose scroll position should change.
* @param {?} amount Amount of pixels that the `node` should be scrolled.
* @return {?}
*/
function incrementHorizontalScroll(node, amount) {
if (node === window) {
((/** @type {?} */ (node))).scrollBy(amount, 0);
}
else {
// Ideally we could use `Element.scrollBy` here as well, but IE and Edge don't support it.
((/** @type {?} */ (node))).scrollLeft += amount;
}
}
/**
* Gets whether the vertical auto-scroll direction of a node.
* @param {?} clientRect Dimensions of the node.
* @param {?} pointerY Position of the user's pointer along the y axis.
* @return {?}
*/
function getVerticalScrollDirection(clientRect, pointerY) {
var top = clientRect.top, bottom = clientRect.bottom, height = clientRect.height;
/** @type {?} */
var yThreshold = height * SCROLL_PROXIMITY_THRESHOLD;
if (pointerY >= top - yThreshold && pointerY <= top + yThreshold) {
return 1 /* UP */;
}
else if (pointerY >= bottom - yThreshold && pointerY <= bottom + yThreshold) {
return 2 /* DOWN */;
}
return 0 /* NONE */;
}
/**
* Gets whether the horizontal auto-scroll direction of a node.
* @param {?} clientRect Dimensions of the node.
* @param {?} pointerX Position of the user's pointer along the x axis.
* @return {?}
*/
function getHorizontalScrollDirection(clientRect, pointerX) {
var left = clientRect.left, right = clientRect.right, width = clientRect.width;
/** @type {?} */
var xThreshold = width * SCROLL_PROXIMITY_THRESHOLD;
if (pointerX >= left - xThreshold && pointerX <= left + xThreshold) {
return 1 /* LEFT */;
}
else if (pointerX >= right - xThreshold && pointerX <= right + xThreshold) {
return 2 /* RIGHT */;
}
return 0 /* NONE */;
}
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* Event options that can be used to bind an active, capturing event.
* @type {?}
*/
var activeCapturingEventOptions = platform.normalizePassiveListenerOptions({
passive: false,
capture: true
});
/**
* Service that keeps track of all the drag item and drop container
* instances, and manages global event listeners on the `document`.
* \@docs-private
* @template I, C
*/
// Note: this class is generic, rather than referencing CdkDrag and CdkDropList directly, in order
// to avoid circular imports. If we were to reference them here, importing the registry into the
// classes that are registering themselves will introduce a circular import.
var DragDropRegistry = /** @class */ (function () {
function DragDropRegistry(_ngZone, _document) {
var _this = this;
this._ngZone = _ngZone;
/**
* Registered drop container instances.
*/
this._dropInstances = new Set();
/**
* Registered drag item instances.
*/
this._dragInstances = new Set();
/**
* Drag item instances that are currently being dragged.
*/
this._activeDragInstances = new Set();
/**
* Keeps track of the event listeners that we've bound to the `document`.
*/
this._globalListeners = new Map();
/**
* Emits the `touchmove` or `mousemove` events that are dispatched
* while the user is dragging a drag item instance.
*/
this.pointerMove = new rxjs.Subject();
/**
* Emits the `touchend` or `mouseup` events that are dispatched
* while the user is dragging a drag item instance.
*/
this.pointerUp = new rxjs.Subject();
/**
* Emits when the viewport has been scrolled while the user is dragging an item.
*/
this.scroll = new rxjs.Subject();
/**
* Event listener that will prevent the default browser action while the user is dragging.
* @param event Event whose default action should be prevented.
*/
this._preventDefaultWhileDragging = (/**
* @param {?} event
* @return {?}
*/
function (event) {
if (_this._activeDragInstances.size) {
event.preventDefault();
}
});
this._document = _document;
}
/** Adds a drop container to the registry. */
/**
* Adds a drop container to the registry.
* @param {?} drop
* @return {?}
*/
DragDropRegistry.prototype.registerDropContainer = /**
* Adds a drop container to the registry.
* @param {?} drop
* @return {?}
*/
function (drop) {
if (!this._dropInstances.has(drop)) {
if (this.getDropContainer(drop.id)) {
throw Error("Drop instance with id \"" + drop.id + "\" has already been registered.");
}
this._dropInstances.add(drop);
}
};
/** Adds a drag item instance to the registry. */
/**
* Adds a drag item instance to the registry.
* @param {?} drag
* @return {?}
*/
DragDropRegistry.prototype.registerDragItem = /**
* Adds a drag item instance to the registry.
* @param {?} drag
* @return {?}
*/
function (drag) {
var _this = this;
this._dragInstances.add(drag);
// The `touchmove` event gets bound once, ahead of time, because WebKit
// won't preventDefault on a dynamically-added `touchmove` listener.
// See https://bugs.webkit.org/show_bug.cgi?id=184250.
if (this._dragInstances.size === 1) {
this._ngZone.runOutsideAngular((/**
* @return {?}
*/
function () {
// The event handler has to be explicitly active,
// because newer browsers make it passive by default.
_this._document.addEventListener('touchmove', _this._preventDefaultWhileDragging, activeCapturingEventOptions);
}));
}
};
/** Removes a drop container from the registry. */
/**
* Removes a drop container from the registry.
* @param {?} drop
* @return {?}
*/
DragDropRegistry.prototype.removeDropContainer = /**
* Removes a drop container from the registry.
* @param {?} drop
* @return {?}
*/
function (drop) {
this._dropInstances.delete(drop);
};
/** Removes a drag item instance from the registry. */
/**
* Removes a drag item instance from the registry.
* @param {?} drag
* @return {?}
*/
DragDropRegistry.prototype.removeDragItem = /**
* Removes a drag item instance from the registry.
* @param {?} drag
* @return {?}
*/
function (drag) {
this._dragInstances.delete(drag);
this.stopDragging(drag);
if (this._dragInstances.size === 0) {
this._document.removeEventListener('touchmove', this._preventDefaultWhileDragging, activeCapturingEventOptions);
}
};
/**
* Starts the dragging sequence for a drag instance.
* @param drag Drag instance which is being dragged.
* @param event Event that initiated the dragging.
*/
/**
* Starts the dragging sequence for a drag instance.
* @param {?} drag Drag instance which is being dragged.
* @param {?} event Event that initiated the dragging.
* @return {?}
*/
DragDropRegistry.prototype.startDragging = /**
* Starts the dragging sequence for a drag instance.
* @param {?} drag Drag instance which is being dragged.
* @param {?} event Event that initiated the dragging.
* @return {?}
*/
function (drag, event) {
var _this = this;
// Do not process the same drag twice to avoid memory leaks and redundant listeners
if (this._activeDragInstances.has(drag)) {
return;
}
this._activeDragInstances.add(drag);
if (this._activeDragInstances.size === 1) {
/** @type {?} */
var isTouchEvent = event.type.startsWith('touch');
/** @type {?} */
var moveEvent = isTouchEvent ? 'touchmove' : 'mousemove';
/** @type {?} */
var upEvent = isTouchEvent ? 'touchend' : 'mouseup';
// We explicitly bind __active__ listeners here, because newer browsers will default to
// passive ones for `mousemove` and `touchmove`. The events need to be active, because we
// use `preventDefault` to prevent the page from scrolling while the user is dragging.
this._globalListeners
.set(moveEvent, {
handler: (/**
* @param {?} e
* @return {?}
*/
function (e) { return _this.pointerMove.next((/** @type {?} */ (e))); }),
options: activeCapturingEventOptions
})
.set(upEvent, {
handler: (/**
* @param {?} e
* @return {?}
*/
function (e) { return _this.pointerUp.next((/** @type {?} */ (e))); }),
options: true
})
.set('scroll', {
handler: (/**
* @param {?} e
* @return {?}
*/
function (e) { return _this.scroll.next(e); })
})
// Preventing the default action on `mousemove` isn't enough to disable text selection
// on Safari so we need to prevent the selection event as well. Alternatively this can
// be done by setting `user-select: none` on the `body`, however it has causes a style
// recalculation which can be expensive on pages with a lot of elements.
.set('selectstart', {
handler: this._preventDefaultWhileDragging,
options: activeCapturingEventOptions
});
this._ngZone.runOutsideAngular((/**
* @return {?}
*/
function () {
_this._globalListeners.forEach((/**
* @param {?} config
* @param {?} name
* @return {?}
*/
function (config, name) {
_this._document.addEventListener(name, config.handler, config.options);
}));
}));
}
};
/** Stops dragging a drag item instance. */
/**
* Stops dragging a drag item instance.
* @param {?} drag
* @return {?}
*/
DragDropRegistry.prototype.stopDragging = /**
* Stops dragging a drag item instance.
* @param {?} drag
* @return {?}
*/
function (drag) {
this._activeDragInstances.delete(drag);
if (this._activeDragInstances.size === 0) {
this._clearGlobalListeners();
}
};
/** Gets whether a drag item instance is currently being dragged. */
/**
* Gets whether a drag item instance is currently being dragged.
* @param {?} drag
* @return {?}
*/
DragDropRegistry.prototype.isDragging = /**
* Gets whether a drag item instance is currently being dragged.
* @param {?} drag
* @return {?}
*/
function (drag) {
return this._activeDragInstances.has(drag);
};
/**
* Gets a drop container by its id.
* @deprecated No longer being used. To be removed.
* @breaking-change 8.0.0
*/
/**
* Gets a drop container by its id.
* @deprecated No longer being used. To be removed.
* \@breaking-change 8.0.0
* @param {?} id
* @return {?}
*/
DragDropRegistry.prototype.getDropContainer = /**
* Gets a drop container by its id.
* @deprecated No longer being used. To be removed.
* \@breaking-change 8.0.0
* @param {?} id
* @return {?}
*/
function (id) {
return Array.from(this._dropInstances).find((/**
* @param {?} instance
* @return {?}
*/
function (instance) { return instance.id === id; }));
};
/**
* @return {?}
*/
DragDropRegistry.prototype.ngOnDestroy = /**
* @return {?}
*/
function () {
var _this = this;
this._dragInstances.forEach((/**
* @param {?} instance
* @return {?}
*/
function (instance) { return _this.removeDragItem(instance); }));
this._dropInstances.forEach((/**
* @param {?} instance
* @return {?}
*/
function (instance) { return _this.removeDropContainer(instance); }));
this._clearGlobalListeners();
this.pointerMove.complete();
this.pointerUp.complete();
};
/** Clears out the global event listeners from the `document`. */
/**
* Clears out the global event listeners from the `document`.
* @private
* @return {?}
*/
DragDropRegistry.prototype._clearGlobalListeners = /**
* Clears out the global event listeners from the `document`.
* @private
* @return {?}
*/
function () {
var _this = this;
this._globalListeners.forEach((/**
* @param {?} config
* @param {?} name
* @return {?}
*/
function (config, name) {
_this._document.removeEventListener(name, config.handler, config.options);
}));
this._globalListeners.clear();
};
DragDropRegistry.decorators = [
{ type: core.Injectable, args: [{ providedIn: 'root' },] },
];
/** @nocollapse */
DragDropRegistry.ctorParameters = function () { return [
{ type: core.NgZone },
{ type: undefined, decorators: [{ type: core.Inject, args: [common.DOCUMENT,] }] }
]; };
/** @nocollapse */ DragDropRegistry.ngInjectableDef = core.ɵɵdefineInjectable({ factory: function DragDropRegistry_Factory() { return new DragDropRegistry(core.ɵɵinject(core.NgZone), core.ɵɵinject(common.DOCUMENT)); }, token: DragDropRegistry, providedIn: "root" });
return DragDropRegistry;
}());
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* Default configuration to be used when creating a `DragRef`.
* @type {?}
*/
var DEFAULT_CONFIG = {
dragStartThreshold: 5,
pointerDirectionChangeThreshold: 5
};
/**
* Service that allows for drag-and-drop functionality to be attached to DOM elements.
*/
var DragDrop = /** @class */ (function () {
function DragDrop(_document, _ngZone, _viewportRuler, _dragDropRegistry) {
this._document = _document;
this._ngZone = _ngZone;
this._viewportRuler = _viewportRuler;
this._dragDropRegistry = _dragDropRegistry;
}
/**
* Turns an element into a draggable item.
* @param element Element to which to attach the dragging functionality.
* @param config Object used to configure the dragging behavior.
*/
/**
* Turns an element into a draggable item.
* @template T
* @param {?} element Element to which to attach the dragging functionality.
* @param {?=} config Object used to configure the dragging behavior.
* @return {?}
*/
DragDrop.prototype.createDrag = /**
* Turns an element into a draggable item.
* @template T
* @param {?} element Element to which to attach the dragging functionality.
* @param {?=} config Object used to configure the dragging behavior.
* @return {?}
*/
function (element, config) {
if (config === void 0) { config = DEFAULT_CONFIG; }
return new DragRef(element, config, this._document, this._ngZone, this._viewportRuler, this._dragDropRegistry);
};
/**
* Turns an element into a drop list.
* @param element Element to which to attach the drop list functionality.
*/
/**
* Turns an element into a drop list.
* @template T
* @param {?} element Element to which to attach the drop list functionality.
* @return {?}
*/
DragDrop.prototype.createDropList = /**
* Turns an element into a drop list.
* @template T
* @param {?} element Element to which to attach the drop list functionality.
* @return {?}
*/
function (element) {
return new DropListRef(element, this._dragDropRegistry, this._document, this._ngZone, this._viewportRuler);
};
DragDrop.decorators = [
{ type: core.Injectable, args: [{ providedIn: 'root' },] },
];
/** @nocollapse */
DragDrop.ctorParameters = function () { return [
{ type: undefined, decorators: [{ type: core.Inject, args: [common.DOCUMENT,] }] },
{ type: core.NgZone },
{ type: scrolling.ViewportRuler },
{ type: DragDropRegistry }
]; };
/** @nocollapse */ DragDrop.ngInjectableDef = core.ɵɵdefineInjectable({ factory: function DragDrop_Factory() { return new DragDrop(core.ɵɵinject(common.DOCUMENT), core.ɵɵinject(core.NgZone), core.ɵɵinject(scrolling.ViewportRuler), core.ɵɵinject(DragDropRegistry)); }, token: DragDrop, providedIn: "root" });
return DragDrop;
}());
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* Injection token that is used to provide a CdkDropList instance to CdkDrag.
* Used for avoiding circular imports.
* @type {?}
*/
var CDK_DROP_LIST = new core.InjectionToken('CDK_DROP_LIST');
/**
* Injection token that is used to provide a CdkDropList instance to CdkDrag.
* Used for avoiding circular imports.
* @deprecated Use `CDK_DROP_LIST` instead.
* \@breaking-change 8.0.0
* @type {?}
*/
var CDK_DROP_LIST_CONTAINER = CDK_DROP_LIST;
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* Injection token that can be used for a `CdkDrag` to provide itself as a parent to the
* drag-specific child directive (`CdkDragHandle`, `CdkDragPreview` etc.). Used primarily
* to avoid circular imports.
* \@docs-private
* @type {?}
*/
var CDK_DRAG_PARENT = new core.InjectionToken('CDK_DRAG_PARENT');
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* Handle that can be used to drag and CdkDrag instance.
*/
var CdkDragHandle = /** @class */ (function () {
function CdkDragHandle(element, parentDrag) {
this.element = element;
/**
* Emits when the state of the handle has changed.
*/
this._stateChanges = new rxjs.Subject();
this._disabled = false;
this._parentDrag = parentDrag;
toggleNativeDragInteractions(element.nativeElement, false);
}
Object.defineProperty(CdkDragHandle.prototype, "disabled", {
/** Whether starting to drag through this handle is disabled. */
get: /**
* Whether starting to drag through this handle is disabled.
* @return {?}
*/
function () { return this._disabled; },
set: /**
* @param {?} value
* @return {?}
*/
function (value) {
this._disabled = coercion.coerceBooleanProperty(value);
this._stateChanges.next(this);
},
enumerable: true,
configurable: true
});
/**
* @return {?}
*/
CdkDragHandle.prototype.ngOnDestroy = /**
* @return {?}
*/
function () {
this._stateChanges.complete();
};
CdkDragHandle.decorators = [
{ type: core.Directive, args: [{
selector: '[cdkDragHandle]',
host: {
'class': 'cdk-drag-handle'
}
},] },
];
/** @nocollapse */
CdkDragHandle.ctorParameters = function () { return [
{ type: core.ElementRef },
{ type: undefined, decorators: [{ type: core.Inject, args: [CDK_DRAG_PARENT,] }, { type: core.Optional }] }
]; };
CdkDragHandle.propDecorators = {
disabled: [{ type: core.Input, args: ['cdkDragHandleDisabled',] }]
};
return CdkDragHandle;
}());
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* Element that will be used as a template for the placeholder of a CdkDrag when
* it is being dragged. The placeholder is displayed in place of the element being dragged.
* @template T
*/
var CdkDragPlaceholder = /** @class */ (function () {
function CdkDragPlaceholder(templateRef) {
this.templateRef = templateRef;
}
CdkDragPlaceholder.decorators = [
{ type: core.Directive, args: [{
selector: 'ng-template[cdkDragPlaceholder]'
},] },
];
/** @nocollapse */
CdkDragPlaceholder.ctorParameters = function () { return [
{ type: core.TemplateRef }
]; };
CdkDragPlaceholder.propDecorators = {
data: [{ type: core.Input }]
};
return CdkDragPlaceholder;
}());
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* Element that will be used as a template for the preview
* of a CdkDrag when it is being dragged.
* @template T
*/
var CdkDragPreview = /** @class */ (function () {
function CdkDragPreview(templateRef) {
this.templateRef = templateRef;
}
CdkDragPreview.decorators = [
{ type: core.Directive, args: [{
selector: 'ng-template[cdkDragPreview]'
},] },
];
/** @nocollapse */
CdkDragPreview.ctorParameters = function () { return [
{ type: core.TemplateRef }
]; };
CdkDragPreview.propDecorators = {
data: [{ type: core.Input }]
};
return CdkDragPreview;
}());
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* Injection token that can be used to configure the behavior of `CdkDrag`.
* @type {?}
*/
var CDK_DRAG_CONFIG = new core.InjectionToken('CDK_DRAG_CONFIG', {
providedIn: 'root',
factory: CDK_DRAG_CONFIG_FACTORY
});
/**
* \@docs-private
* @return {?}
*/
function CDK_DRAG_CONFIG_FACTORY() {
return { dragStartThreshold: 5, pointerDirectionChangeThreshold: 5 };
}
/**
* Element that can be moved inside a CdkDropList container.
* @template T
*/
var CdkDrag = /** @class */ (function () {
function CdkDrag(element, dropContainer, _document, _ngZone, _viewContainerRef, config, _dir, dragDrop, _changeDetectorRef) {
var _this = this;
this.element = element;
this.dropContainer = dropContainer;
this._document = _document;
this._ngZone = _ngZone;
this._viewContainerRef = _viewContainerRef;
this._dir = _dir;
this._changeDetectorRef = _changeDetectorRef;
this._destroyed = new rxjs.Subject();
/**
* Amount of milliseconds to wait after the user has put their
* pointer down before starting to drag the element.
*/
this.dragStartDelay = 0;
this._disabled = false;
/**
* Emits when the user starts dragging the item.
*/
this.started = new core.EventEmitter();
/**
* Emits when the user has released a drag item, before any animations have started.
*/
this.released = new core.EventEmitter();
/**
* Emits when the user stops dragging an item in the container.
*/
this.ended = new core.EventEmitter();
/**
* Emits when the user has moved the item into a new container.
*/
this.entered = new core.EventEmitter();
/**
* Emits when the user removes the item its container by dragging it into another container.
*/
this.exited = new core.EventEmitter();
/**
* Emits when the user drops the item inside a container.
*/
this.dropped = new core.EventEmitter();
/**
* Emits as the user is dragging the item. Use with caution,
* because this event will fire for every pixel that the user has dragged.
*/
this.moved = new rxjs.Observable((/**
* @param {?} observer
* @return {?}
*/
function (observer) {
/** @type {?} */
var subscription = _this._dragRef.moved.pipe(operators.map((/**
* @param {?} movedEvent
* @return {?}
*/
function (movedEvent) { return ({
source: _this,
pointerPosition: movedEvent.pointerPosition,
event: movedEvent.event,
delta: movedEvent.delta,
distance: movedEvent.distance
}); }))).subscribe(observer);
return (/**
* @return {?}
*/
function () {
subscription.unsubscribe();
});
}));
this._dragRef = dragDrop.createDrag(element, config);
this._dragRef.data = this;
this._syncInputs(this._dragRef);
this._handleEvents(this._dragRef);
}
Object.defineProperty(CdkDrag.prototype, "boundaryElementSelector", {
/**
* Selector that will be used to determine the element to which the draggable's position will
* be constrained. Matching starts from the element's parent and goes up the DOM until a matching
* element has been found
* @deprecated Use `boundaryElement` instead.
* @breaking-change 9.0.0
*/
get: /**
* Selector that will be used to determine the element to which the draggable's position will
* be constrained. Matching starts from the element's parent and goes up the DOM until a matching
* element has been found
* @deprecated Use `boundaryElement` instead.
* \@breaking-change 9.0.0
* @return {?}
*/
function () {
return typeof this.boundaryElement === 'string' ? this.boundaryElement : (/** @type {?} */ (undefined));
},
set: /**
* @param {?} selector
* @return {?}
*/
function (selector) {
this.boundaryElement = selector;
},
enumerable: true,
configurable: true
});
Object.defineProperty(CdkDrag.prototype, "disabled", {
/** Whether starting to drag this element is disabled. */
get: /**
* Whether starting to drag this element is disabled.
* @return {?}
*/
function () {
return this._disabled || (this.dropContainer && this.dropContainer.disabled);
},
set: /**
* @param {?} value
* @return {?}
*/
function (value) {
this._disabled = coercion.coerceBooleanProperty(value);
this._dragRef.disabled = this._disabled;
},
enumerable: true,
configurable: true
});
/**
* Returns the element that is being used as a placeholder
* while the current element is being dragged.
*/
/**
* Returns the element that is being used as a placeholder
* while the current element is being dragged.
* @return {?}
*/
CdkDrag.prototype.getPlaceholderElement = /**
* Returns the element that is being used as a placeholder
* while the current element is being dragged.
* @return {?}
*/
function () {
return this._dragRef.getPlaceholderElement();
};
/** Returns the root draggable element. */
/**
* Returns the root draggable element.
* @return {?}
*/
CdkDrag.prototype.getRootElement = /**
* Returns the root draggable element.
* @return {?}
*/
function () {
return this._dragRef.getRootElement();
};
/** Resets a standalone drag item to its initial position. */
/**
* Resets a standalone drag item to its initial position.
* @return {?}
*/
CdkDrag.prototype.reset = /**
* Resets a standalone drag item to its initial position.
* @return {?}
*/
function () {
this._dragRef.reset();
};
/**
* Gets the pixel coordinates of the draggable outside of a drop container.
*/
/**
* Gets the pixel coordinates of the draggable outside of a drop container.
* @return {?}
*/
CdkDrag.prototype.getFreeDragPosition = /**
* Gets the pixel coordinates of the draggable outside of a drop container.
* @return {?}
*/
function () {
return this._dragRef.getFreeDragPosition();
};
/**
* @return {?}
*/
CdkDrag.prototype.ngAfterViewInit = /**
* @return {?}
*/
function () {
var _this = this;
// We need to wait for the zone to stabilize, in order for the reference
// element to be in the proper place in the DOM. This is mostly relevant
// for draggable elements inside portals since they get stamped out in
// their original DOM position and then they get transferred to the portal.
this._ngZone.onStable.asObservable()
.pipe(operators.take(1), operators.takeUntil(this._destroyed))
.subscribe((/**
* @return {?}
*/
function () {
_this._updateRootElement();
// Listen for any newly-added handles.
_this._handles.changes.pipe(operators.startWith(_this._handles),
// Sync the new handles with the DragRef.
operators.tap((/**
* @param {?} handles
* @return {?}
*/
function (handles) {
/** @type {?} */
var childHandleElements = handles
.filter((/**
* @param {?} handle
* @return {?}
*/
function (handle) { return handle._parentDrag === _this; }))
.map((/**
* @param {?} handle
* @return {?}
*/
function (handle) { return handle.element; }));
_this._dragRef.withHandles(childHandleElements);
})),
// Listen if the state of any of the handles changes.
operators.switchMap((/**
* @param {?} handles
* @return {?}
*/
function (handles) {
return rxjs.merge.apply(void 0, handles.map((/**
* @param {?} item
* @return {?}
*/
function (item) { return item._stateChanges; })));
})), operators.takeUntil(_this._destroyed)).subscribe((/**
* @param {?} handleInstance
* @return {?}
*/
function (handleInstance) {
// Enabled/disable the handle that changed in the DragRef.
/** @type {?} */
var dragRef = _this._dragRef;
/** @type {?} */
var handle = handleInstance.element.nativeElement;
handleInstance.disabled ? dragRef.disableHandle(handle) : dragRef.enableHandle(handle);
}));
if (_this.freeDragPosition) {
_this._dragRef.setFreeDragPosition(_this.freeDragPosition);
}
}));
};
/**
* @param {?} changes
* @return {?}
*/
CdkDrag.prototype.ngOnChanges = /**
* @param {?} changes
* @return {?}
*/
function (changes) {
/** @type {?} */
var rootSelectorChange = changes['rootElementSelector'];
/** @type {?} */
var positionChange = changes['freeDragPosition'];
// We don't have to react to the first change since it's being
// handled in `ngAfterViewInit` where it needs to be deferred.
if (rootSelectorChange && !rootSelectorChange.firstChange) {
this._updateRootElement();
}
// Skip the first change since it's being handled in `ngAfterViewInit`.
if (positionChange && !positionChange.firstChange && this.freeDragPosition) {
this._dragRef.setFreeDragPosition(this.freeDragPosition);
}
};
/**
* @return {?}
*/
CdkDrag.prototype.ngOnDestroy = /**
* @return {?}
*/
function () {
this._destroyed.next();
this._destroyed.complete();
this._dragRef.dispose();
};
/** Syncs the root element with the `DragRef`. */
/**
* Syncs the root element with the `DragRef`.
* @private
* @return {?}
*/
CdkDrag.prototype._updateRootElement = /**
* Syncs the root element with the `DragRef`.
* @private
* @return {?}
*/
function () {
/** @type {?} */
var element = this.element.nativeElement;
/** @type {?} */
var rootElement = this.rootElementSelector ?
getClosestMatchingAncestor(element, this.rootElementSelector) : element;
if (rootElement && rootElement.nodeType !== this._document.ELEMENT_NODE) {
throw Error("cdkDrag must be attached to an element node. " +
("Currently attached to \"" + rootElement.nodeName + "\"."));
}
this._dragRef.withRootElement(rootElement || element);
};
/** Gets the boundary element, based on the `boundaryElement` value. */
/**
* Gets the boundary element, based on the `boundaryElement` value.
* @private
* @return {?}
*/
CdkDrag.prototype._getBoundaryElement = /**
* Gets the boundary element, based on the `boundaryElement` value.
* @private
* @return {?}
*/
function () {
/** @type {?} */
var boundary = this.boundaryElement;
if (!boundary) {
return null;
}
if (typeof boundary === 'string') {
return getClosestMatchingAncestor(this.element.nativeElement, boundary);
}
/** @type {?} */
var element = coercion.coerceElement(boundary);
if (core.isDevMode() && !element.contains(this.element.nativeElement)) {
throw Error('Draggable element is not inside of the node passed into cdkDragBoundary.');
}
return element;
};
/** Syncs the inputs of the CdkDrag with the options of the underlying DragRef. */
/**
* Syncs the inputs of the CdkDrag with the options of the underlying DragRef.
* @private
* @param {?} ref
* @return {?}
*/
CdkDrag.prototype._syncInputs = /**
* Syncs the inputs of the CdkDrag with the options of the underlying DragRef.
* @private
* @param {?} ref
* @return {?}
*/
function (ref) {
var _this = this;
ref.beforeStarted.subscribe((/**
* @return {?}
*/
function () {
if (!ref.isDragging()) {
/** @type {?} */
var dir = _this._dir;
/** @type {?} */
var placeholder = _this._placeholderTemplate ? {
template: _this._placeholderTemplate.templateRef,
context: _this._placeholderTemplate.data,
viewContainer: _this._viewContainerRef
} : null;
/** @type {?} */
var preview = _this._previewTemplate ? {
template: _this._previewTemplate.templateRef,
context: _this._previewTemplate.data,
viewContainer: _this._viewContainerRef
} : null;
ref.disabled = _this.disabled;
ref.lockAxis = _this.lockAxis;
ref.dragStartDelay = coercion.coerceNumberProperty(_this.dragStartDelay);
ref.constrainPosition = _this.constrainPosition;
ref
.withBoundaryElement(_this._getBoundaryElement())
.withPlaceholderTemplate(placeholder)
.withPreviewTemplate(preview);
if (dir) {
ref.withDirection(dir.value);
}
}
}));
};
/** Handles the events from the underlying `DragRef`. */
/**
* Handles the events from the underlying `DragRef`.
* @private
* @param {?} ref
* @return {?}
*/
CdkDrag.prototype._handleEvents = /**
* Handles the events from the underlying `DragRef`.
* @private
* @param {?} ref
* @return {?}
*/
function (ref) {
var _this = this;
ref.started.subscribe((/**
* @return {?}
*/
function () {
_this.started.emit({ source: _this });
// Since all of these events run outside of change detection,
// we need to ensure that everything is marked correctly.
_this._changeDetectorRef.markForCheck();
}));
ref.released.subscribe((/**
* @return {?}
*/
function () {
_this.released.emit({ source: _this });
}));
ref.ended.subscribe((/**
* @param {?} event
* @return {?}
*/
function (event) {
_this.ended.emit({ source: _this, distance: event.distance });
// Since all of these events run outside of change detection,
// we need to ensure that everything is marked correctly.
_this._changeDetectorRef.markForCheck();
}));
ref.entered.subscribe((/**
* @param {?} event
* @return {?}
*/
function (event) {
_this.entered.emit({
container: event.container.data,
item: _this,
currentIndex: event.currentIndex
});
}));
ref.exited.subscribe((/**
* @param {?} event
* @return {?}
*/
function (event) {
_this.exited.emit({
container: event.container.data,
item: _this
});
}));
ref.dropped.subscribe((/**
* @param {?} event
* @return {?}
*/
function (event) {
_this.dropped.emit({
previousIndex: event.previousIndex,
currentIndex: event.currentIndex,
previousContainer: event.previousContainer.data,
container: event.container.data,
isPointerOverContainer: event.isPointerOverContainer,
item: _this,
distance: event.distance
});
}));
};
CdkDrag.decorators = [
{ type: core.Directive, args: [{
selector: '[cdkDrag]',
exportAs: 'cdkDrag',
host: {
'class': 'cdk-drag',
'[class.cdk-drag-disabled]': 'disabled',
'[class.cdk-drag-dragging]': '_dragRef.isDragging()',
},
providers: [{ provide: CDK_DRAG_PARENT, useExisting: CdkDrag }]
},] },
];
/** @nocollapse */
CdkDrag.ctorParameters = function () { return [
{ type: core.ElementRef },
{ type: undefined, decorators: [{ type: core.Inject, args: [CDK_DROP_LIST,] }, { type: core.Optional }, { type: core.SkipSelf }] },
{ type: undefined, decorators: [{ type: core.Inject, args: [common.DOCUMENT,] }] },
{ type: core.NgZone },
{ type: core.ViewContainerRef },
{ type: undefined, decorators: [{ type: core.Inject, args: [CDK_DRAG_CONFIG,] }] },
{ type: bidi.Directionality, decorators: [{ type: core.Optional }] },
{ type: DragDrop },
{ type: core.ChangeDetectorRef }
]; };
CdkDrag.propDecorators = {
_handles: [{ type: core.ContentChildren, args: [CdkDragHandle, { descendants: true },] }],
_previewTemplate: [{ type: core.ContentChild, args: [CdkDragPreview, { static: false },] }],
_placeholderTemplate: [{ type: core.ContentChild, args: [CdkDragPlaceholder, { static: false },] }],
data: [{ type: core.Input, args: ['cdkDragData',] }],
lockAxis: [{ type: core.Input, args: ['cdkDragLockAxis',] }],
rootElementSelector: [{ type: core.Input, args: ['cdkDragRootElement',] }],
boundaryElement: [{ type: core.Input, args: ['cdkDragBoundary',] }],
dragStartDelay: [{ type: core.Input, args: ['cdkDragStartDelay',] }],
freeDragPosition: [{ type: core.Input, args: ['cdkDragFreeDragPosition',] }],
disabled: [{ type: core.Input, args: ['cdkDragDisabled',] }],
constrainPosition: [{ type: core.Input, args: ['cdkDragConstrainPosition',] }],
started: [{ type: core.Output, args: ['cdkDragStarted',] }],
released: [{ type: core.Output, args: ['cdkDragReleased',] }],
ended: [{ type: core.Output, args: ['cdkDragEnded',] }],
entered: [{ type: core.Output, args: ['cdkDragEntered',] }],
exited: [{ type: core.Output, args: ['cdkDragExited',] }],
dropped: [{ type: core.Output, args: ['cdkDragDropped',] }],
moved: [{ type: core.Output, args: ['cdkDragMoved',] }]
};
return CdkDrag;
}());
/**
* Gets the closest ancestor of an element that matches a selector.
* @param {?} element
* @param {?} selector
* @return {?}
*/
function getClosestMatchingAncestor(element, selector) {
/** @type {?} */
var currentElement = (/** @type {?} */ (element.parentElement));
while (currentElement) {
// IE doesn't support `matches` so we have to fall back to `msMatchesSelector`.
if (currentElement.matches ? currentElement.matches(selector) :
((/** @type {?} */ (currentElement))).msMatchesSelector(selector)) {
return currentElement;
}
currentElement = currentElement.parentElement;
}
return null;
}
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* Declaratively connects sibling `cdkDropList` instances together. All of the `cdkDropList`
* elements that are placed inside a `cdkDropListGroup` will be connected to each other
* automatically. Can be used as an alternative to the `cdkDropListConnectedTo` input
* from `cdkDropList`.
* @template T
*/
var CdkDropListGroup = /** @class */ (function () {
function CdkDropListGroup() {
/**
* Drop lists registered inside the group.
*/
this._items = new Set();
this._disabled = false;
}
Object.defineProperty(CdkDropListGroup.prototype, "disabled", {
/** Whether starting a dragging sequence from inside this group is disabled. */
get: /**
* Whether starting a dragging sequence from inside this group is disabled.
* @return {?}
*/
function () { return this._disabled; },
set: /**
* @param {?} value
* @return {?}
*/
function (value) {
this._disabled = coercion.coerceBooleanProperty(value);
},
enumerable: true,
configurable: true
});
/**
* @return {?}
*/
CdkDropListGroup.prototype.ngOnDestroy = /**
* @return {?}
*/
function () {
this._items.clear();
};
CdkDropListGroup.decorators = [
{ type: core.Directive, args: [{
selector: '[cdkDropListGroup]',
exportAs: 'cdkDropListGroup',
},] },
];
CdkDropListGroup.propDecorators = {
disabled: [{ type: core.Input, args: ['cdkDropListGroupDisabled',] }]
};
return CdkDropListGroup;
}());
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* Counter used to generate unique ids for drop zones.
* @type {?}
*/
var _uniqueIdCounter$1 = 0;
var ɵ0 = undefined;
// @breaking-change 8.0.0 `CdkDropList` implements `CdkDropListContainer` for backwards
// compatiblity. The implements clause, as well as all the methods that it enforces can
// be removed when `CdkDropListContainer` is deleted.
/**
* Container that wraps a set of draggable items.
* @template T
*/
var CdkDropList = /** @class */ (function () {
function CdkDropList(element, dragDrop, _changeDetectorRef, _dir, _group) {
var _this = this;
this.element = element;
this._changeDetectorRef = _changeDetectorRef;
this._dir = _dir;
this._group = _group;
/**
* Emits when the list has been destroyed.
*/
this._destroyed = new rxjs.Subject();
/**
* Other draggable containers that this container is connected to and into which the
* container's items can be transferred. Can either be references to other drop containers,
* or their unique IDs.
*/
this.connectedTo = [];
/**
* Direction in which the list is oriented.
*/
this.orientation = 'vertical';
/**
* Unique ID for the drop zone. Can be used as a reference
* in the `connectedTo` of another `CdkDropList`.
*/
this.id = "cdk-drop-list-" + _uniqueIdCounter$1++;
this._disabled = false;
this._sortingDisabled = false;
/**
* Function that is used to determine whether an item
* is allowed to be moved into a drop container.
*/
this.enterPredicate = (/**
* @return {?}
*/
function () { return true; });
/**
* Whether to auto-scroll the view when the user moves their pointer close to the edges.
*/
this.autoScrollDisabled = false;
/**
* Emits when the user drops an item inside the container.
*/
this.dropped = new core.EventEmitter();
/**
* Emits when the user has moved a new drag item into this container.
*/
this.entered = new core.EventEmitter();
/**
* Emits when the user removes an item from the container
* by dragging it into another container.
*/
this.exited = new core.EventEmitter();
/**
* Emits as the user is swapping items while actively dragging.
*/
this.sorted = new core.EventEmitter();
this._dropListRef = dragDrop.createDropList(element);
this._dropListRef.data = this;
this._dropListRef.enterPredicate = (/**
* @param {?} drag
* @param {?} drop
* @return {?}
*/
function (drag, drop) {
return _this.enterPredicate(drag.data, drop.data);
});
this._syncInputs(this._dropListRef);
this._handleEvents(this._dropListRef);
CdkDropList._dropLists.push(this);
if (_group) {
_group._items.add(this);
}
}
Object.defineProperty(CdkDropList.prototype, "disabled", {
/** Whether starting a dragging sequence from this container is disabled. */
get: /**
* Whether starting a dragging sequence from this container is disabled.
* @return {?}
*/
function () {
return this._disabled || (!!this._group && this._group.disabled);
},
set: /**
* @param {?} value
* @return {?}
*/
function (value) {
this._disabled = coercion.coerceBooleanProperty(value);
},
enumerable: true,
configurable: true
});
Object.defineProperty(CdkDropList.prototype, "sortingDisabled", {
/** Whether sorting within this drop list is disabled. */
get: /**
* Whether sorting within this drop list is disabled.
* @return {?}
*/
function () { return this._sortingDisabled; },
set: /**
* @param {?} value
* @return {?}
*/
function (value) {
this._sortingDisabled = coercion.coerceBooleanProperty(value);
},
enumerable: true,
configurable: true
});
/**
* @return {?}
*/
CdkDropList.prototype.ngAfterContentInit = /**
* @return {?}
*/
function () {
var _this = this;
this._draggables.changes
.pipe(operators.startWith(this._draggables), operators.takeUntil(this._destroyed))
.subscribe((/**
* @param {?} items
* @return {?}
*/
function (items) {
_this._dropListRef.withItems(items.map((/**
* @param {?} drag
* @return {?}
*/
function (drag) { return drag._dragRef; })));
}));
};
/**
* @return {?}
*/
CdkDropList.prototype.ngOnDestroy = /**
* @return {?}
*/
function () {
/** @type {?} */
var index = CdkDropList._dropLists.indexOf(this);
if (index > -1) {
CdkDropList._dropLists.splice(index, 1);
}
if (this._group) {
this._group._items.delete(this);
}
this._dropListRef.dispose();
this._destroyed.next();
this._destroyed.complete();
};
/** Starts dragging an item. */
/**
* Starts dragging an item.
* @return {?}
*/
CdkDropList.prototype.start = /**
* Starts dragging an item.
* @return {?}
*/
function () {
this._dropListRef.start();
};
/**
* Drops an item into this container.
* @param item Item being dropped into the container.
* @param currentIndex Index at which the item should be inserted.
* @param previousContainer Container from which the item got dragged in.
* @param isPointerOverContainer Whether the user's pointer was over the
* container when the item was dropped.
*/
/**
* Drops an item into this container.
* @param {?} item Item being dropped into the container.
* @param {?} currentIndex Index at which the item should be inserted.
* @param {?} previousContainer Container from which the item got dragged in.
* @param {?} isPointerOverContainer Whether the user's pointer was over the
* container when the item was dropped.
* @return {?}
*/
CdkDropList.prototype.drop = /**
* Drops an item into this container.
* @param {?} item Item being dropped into the container.
* @param {?} currentIndex Index at which the item should be inserted.
* @param {?} previousContainer Container from which the item got dragged in.
* @param {?} isPointerOverContainer Whether the user's pointer was over the
* container when the item was dropped.
* @return {?}
*/
function (item, currentIndex, previousContainer, isPointerOverContainer) {
this._dropListRef.drop(item._dragRef, currentIndex, ((/** @type {?} */ (previousContainer)))._dropListRef, isPointerOverContainer);
};
/**
* Emits an event to indicate that the user moved an item into the container.
* @param item Item that was moved into the container.
* @param pointerX Position of the item along the X axis.
* @param pointerY Position of the item along the Y axis.
*/
/**
* Emits an event to indicate that the user moved an item into the container.
* @param {?} item Item that was moved into the container.
* @param {?} pointerX Position of the item along the X axis.
* @param {?} pointerY Position of the item along the Y axis.
* @return {?}
*/
CdkDropList.prototype.enter = /**
* Emits an event to indicate that the user moved an item into the container.
* @param {?} item Item that was moved into the container.
* @param {?} pointerX Position of the item along the X axis.
* @param {?} pointerY Position of the item along the Y axis.
* @return {?}
*/
function (item, pointerX, pointerY) {
this._dropListRef.enter(item._dragRef, pointerX, pointerY);
};
/**
* Removes an item from the container after it was dragged into another container by the user.
* @param item Item that was dragged out.
*/
/**
* Removes an item from the container after it was dragged into another container by the user.
* @param {?} item Item that was dragged out.
* @return {?}
*/
CdkDropList.prototype.exit = /**
* Removes an item from the container after it was dragged into another container by the user.
* @param {?} item Item that was dragged out.
* @return {?}
*/
function (item) {
this._dropListRef.exit(item._dragRef);
};
/**
* Figures out the index of an item in the container.
* @param item Item whose index should be determined.
*/
/**
* Figures out the index of an item in the container.
* @param {?} item Item whose index should be determined.
* @return {?}
*/
CdkDropList.prototype.getItemIndex = /**
* Figures out the index of an item in the container.
* @param {?} item Item whose index should be determined.
* @return {?}
*/
function (item) {
return this._dropListRef.getItemIndex(item._dragRef);
};
/**
* Sorts an item inside the container based on its position.
* @param item Item to be sorted.
* @param pointerX Position of the item along the X axis.
* @param pointerY Position of the item along the Y axis.
* @param pointerDelta Direction in which the pointer is moving along each axis.
*/
/**
* Sorts an item inside the container based on its position.
* @param {?} item Item to be sorted.
* @param {?} pointerX Position of the item along the X axis.
* @param {?} pointerY Position of the item along the Y axis.
* @param {?} pointerDelta Direction in which the pointer is moving along each axis.
* @return {?}
*/
CdkDropList.prototype._sortItem = /**
* Sorts an item inside the container based on its position.
* @param {?} item Item to be sorted.
* @param {?} pointerX Position of the item along the X axis.
* @param {?} pointerY Position of the item along the Y axis.
* @param {?} pointerDelta Direction in which the pointer is moving along each axis.
* @return {?}
*/
function (item, pointerX, pointerY, pointerDelta) {
return this._dropListRef._sortItem(item._dragRef, pointerX, pointerY, pointerDelta);
};
/**
* Figures out whether an item should be moved into a sibling
* drop container, based on its current position.
* @param item Drag item that is being moved.
* @param x Position of the item along the X axis.
* @param y Position of the item along the Y axis.
*/
/**
* Figures out whether an item should be moved into a sibling
* drop container, based on its current position.
* @param {?} item Drag item that is being moved.
* @param {?} x Position of the item along the X axis.
* @param {?} y Position of the item along the Y axis.
* @return {?}
*/
CdkDropList.prototype._getSiblingContainerFromPosition = /**
* Figures out whether an item should be moved into a sibling
* drop container, based on its current position.
* @param {?} item Drag item that is being moved.
* @param {?} x Position of the item along the X axis.
* @param {?} y Position of the item along the Y axis.
* @return {?}
*/
function (item, x, y) {
/** @type {?} */
var result = this._dropListRef._getSiblingContainerFromPosition(item._dragRef, x, y);
return result ? result.data : null;
};
/**
* Checks whether the user's pointer is positioned over the container.
* @param x Pointer position along the X axis.
* @param y Pointer position along the Y axis.
*/
/**
* Checks whether the user's pointer is positioned over the container.
* @param {?} x Pointer position along the X axis.
* @param {?} y Pointer position along the Y axis.
* @return {?}
*/
CdkDropList.prototype._isOverContainer = /**
* Checks whether the user's pointer is positioned over the container.
* @param {?} x Pointer position along the X axis.
* @param {?} y Pointer position along the Y axis.
* @return {?}
*/
function (x, y) {
return this._dropListRef._isOverContainer(x, y);
};
/** Syncs the inputs of the CdkDropList with the options of the underlying DropListRef. */
/**
* Syncs the inputs of the CdkDropList with the options of the underlying DropListRef.
* @private
* @param {?} ref
* @return {?}
*/
CdkDropList.prototype._syncInputs = /**
* Syncs the inputs of the CdkDropList with the options of the underlying DropListRef.
* @private
* @param {?} ref
* @return {?}
*/
function (ref) {
var _this = this;
if (this._dir) {
this._dir.change
.pipe(operators.startWith(this._dir.value), operators.takeUntil(this._destroyed))
.subscribe((/**
* @param {?} value
* @return {?}
*/
function (value) { return ref.withDirection(value); }));
}
ref.beforeStarted.subscribe((/**
* @return {?}
*/
function () {
/** @type {?} */
var siblings = coercion.coerceArray(_this.connectedTo).map((/**
* @param {?} drop
* @return {?}
*/
function (drop) {
return typeof drop === 'string' ?
(/** @type {?} */ (CdkDropList._dropLists.find((/**
* @param {?} list
* @return {?}
*/
function (list) { return list.id === drop; })))) : drop;
}));
if (_this._group) {
_this._group._items.forEach((/**
* @param {?} drop
* @return {?}
*/
function (drop) {
if (siblings.indexOf(drop) === -1) {
siblings.push(drop);
}
}));
}
ref.disabled = _this.disabled;
ref.lockAxis = _this.lockAxis;
ref.sortingDisabled = _this.sortingDisabled;
ref.autoScrollDisabled = _this.autoScrollDisabled;
ref
.connectedTo(siblings.filter((/**
* @param {?} drop
* @return {?}
*/
function (drop) { return drop && drop !== _this; })).map((/**
* @param {?} list
* @return {?}
*/
function (list) { return list._dropListRef; })))
.withOrientation(_this.orientation);
}));
};
/** Handles events from the underlying DropListRef. */
/**
* Handles events from the underlying DropListRef.
* @private
* @param {?} ref
* @return {?}
*/
CdkDropList.prototype._handleEvents = /**
* Handles events from the underlying DropListRef.
* @private
* @param {?} ref
* @return {?}
*/
function (ref) {
var _this = this;
ref.beforeStarted.subscribe((/**
* @return {?}
*/
function () {
_this._changeDetectorRef.markForCheck();
}));
ref.entered.subscribe((/**
* @param {?} event
* @return {?}
*/
function (event) {
_this.entered.emit({
container: _this,
item: event.item.data,
currentIndex: event.currentIndex
});
}));
ref.exited.subscribe((/**
* @param {?} event
* @return {?}
*/
function (event) {
_this.exited.emit({
container: _this,
item: event.item.data
});
_this._changeDetectorRef.markForCheck();
}));
ref.sorted.subscribe((/**
* @param {?} event
* @return {?}
*/
function (event) {
_this.sorted.emit({
previousIndex: event.previousIndex,
currentIndex: event.currentIndex,
container: _this,
item: event.item.data
});
}));
ref.dropped.subscribe((/**
* @param {?} event
* @return {?}
*/
function (event) {
_this.dropped.emit({
previousIndex: event.previousIndex,
currentIndex: event.currentIndex,
previousContainer: event.previousContainer.data,
container: event.container.data,
item: event.item.data,
isPointerOverContainer: event.isPointerOverContainer,
distance: event.distance
});
// Mark for check since all of these events run outside of change
// detection and we're not guaranteed for something else to have triggered it.
_this._changeDetectorRef.markForCheck();
}));
};
/**
* Keeps track of the drop lists that are currently on the page.
*/
CdkDropList._dropLists = [];
CdkDropList.decorators = [
{ type: core.Directive, args: [{
selector: '[cdkDropList], cdk-drop-list',
exportAs: 'cdkDropList',
providers: [
// Prevent child drop lists from picking up the same group as their parent.
{ provide: CdkDropListGroup, useValue: ɵ0 },
{ provide: CDK_DROP_LIST_CONTAINER, useExisting: CdkDropList },
],
host: {
'class': 'cdk-drop-list',
'[id]': 'id',
'[class.cdk-drop-list-disabled]': 'disabled',
'[class.cdk-drop-list-dragging]': '_dropListRef.isDragging()',
'[class.cdk-drop-list-receiving]': '_dropListRef.isReceiving()',
}
},] },
];
/** @nocollapse */
CdkDropList.ctorParameters = function () { return [
{ type: core.ElementRef },
{ type: DragDrop },
{ type: core.ChangeDetectorRef },
{ type: bidi.Directionality, decorators: [{ type: core.Optional }] },
{ type: CdkDropListGroup, decorators: [{ type: core.Optional }, { type: core.SkipSelf }] }
]; };
CdkDropList.propDecorators = {
_draggables: [{ type: core.ContentChildren, args: [core.forwardRef((/**
* @return {?}
*/
function () { return CdkDrag; })), {
// Explicitly set to false since some of the logic below makes assumptions about it.
// The `.withItems` call below should be updated if we ever need to switch this to `true`.
descendants: false
},] }],
connectedTo: [{ type: core.Input, args: ['cdkDropListConnectedTo',] }],
data: [{ type: core.Input, args: ['cdkDropListData',] }],
orientation: [{ type: core.Input, args: ['cdkDropListOrientation',] }],
id: [{ type: core.Input }],
lockAxis: [{ type: core.Input, args: ['cdkDropListLockAxis',] }],
disabled: [{ type: core.Input, args: ['cdkDropListDisabled',] }],
sortingDisabled: [{ type: core.Input, args: ['cdkDropListSortingDisabled',] }],
enterPredicate: [{ type: core.Input, args: ['cdkDropListEnterPredicate',] }],
autoScrollDisabled: [{ type: core.Input, args: ['cdkDropListAutoScrollDisabled',] }],
dropped: [{ type: core.Output, args: ['cdkDropListDropped',] }],
entered: [{ type: core.Output, args: ['cdkDropListEntered',] }],
exited: [{ type: core.Output, args: ['cdkDropListExited',] }],
sorted: [{ type: core.Output, args: ['cdkDropListSorted',] }]
};
return CdkDropList;
}());
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
var DragDropModule = /** @class */ (function () {
function DragDropModule() {
}
DragDropModule.decorators = [
{ type: core.NgModule, args: [{
declarations: [
CdkDropList,
CdkDropListGroup,
CdkDrag,
CdkDragHandle,
CdkDragPreview,
CdkDragPlaceholder,
],
exports: [
CdkDropList,
CdkDropListGroup,
CdkDrag,
CdkDragHandle,
CdkDragPreview,
CdkDragPlaceholder,
],
providers: [
DragDrop,
]
},] },
];
return DragDropModule;
}());
exports.DragDrop = DragDrop;
exports.DragRef = DragRef;
exports.DropListRef = DropListRef;
exports.CdkDropList = CdkDropList;
exports.CDK_DROP_LIST = CDK_DROP_LIST;
exports.CDK_DROP_LIST_CONTAINER = CDK_DROP_LIST_CONTAINER;
exports.moveItemInArray = moveItemInArray;
exports.transferArrayItem = transferArrayItem;
exports.copyArrayItem = copyArrayItem;
exports.DragDropModule = DragDropModule;
exports.DragDropRegistry = DragDropRegistry;
exports.CdkDropListGroup = CdkDropListGroup;
exports.CDK_DRAG_CONFIG_FACTORY = CDK_DRAG_CONFIG_FACTORY;
exports.CDK_DRAG_CONFIG = CDK_DRAG_CONFIG;
exports.CdkDrag = CdkDrag;
exports.CdkDragHandle = CdkDragHandle;
exports.CdkDragPreview = CdkDragPreview;
exports.CdkDragPlaceholder = CdkDragPlaceholder;
exports.ɵb = CDK_DRAG_PARENT;
Object.defineProperty(exports, '__esModule', { value: true });
})));
//# sourceMappingURL=cdk-drag-drop.umd.js.map