@duoduo-oba/ng-devui
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DevUI components based on Angular
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JavaScript
import { ElementRef, Injectable, NgZone, EventEmitter, Component, ChangeDetectorRef, Directive, ComponentFactoryResolver, Input, Renderer2, Optional, Self, HostBinding, Output, HostListener, ContentChildren, NgModule } from '@angular/core';
import { Subject, Observable, Subscription, fromEvent, merge } from 'rxjs';
import { OverlayContainerRef } from '@duoduo-oba/ng-devui/overlay-container';
import { filter, distinctUntilChanged, tap, throttleTime } from 'rxjs/operators';
import { CommonModule } from '@angular/common';
/**
* @fileoverview added by tsickle
* Generated from: touch-support/dragdrop-touch.ts
* @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* 2020.03.23-Modified from https://github.com/Bernardo-Castilho/dragdroptouch, license: MIT，reason:Converting .js file to .ts file
* Huawei Technologies Co.,Ltd.<devcloudmobile\@huawei.com>
*/
class DragDropTouch {
constructor() {
this.lastClick = 0;
// ** event handlers
this.touchstart = (/**
* @param {?} e
* @return {?}
*/
(e) => {
if (this.shouldHandle(e)) {
// raise double-click and prevent zooming
if (Date.now() - this.lastClick < DragDropTouch.DBLCLICK) {
if (this.dispatchEvent(e, 'dblclick', e.target)) {
e.preventDefault();
this.reset();
return;
}
}
// clear all variables
this.reset();
// get nearest draggable element
/** @type {?} */
const src = this.closestDraggable(e.target);
if (src) {
this.dragSource = src;
this.ptDown = this.getPoint(e);
this.lastTouch = e;
if (DragDropTouch.IS_PRESS_HOLD_MODE) {
this.pressHoldInterval = setTimeout((/**
* @return {?}
*/
() => {
this.bindTouchmoveTouchend(e);
this.isDragEnabled = true;
this.touchmove(e);
}), DragDropTouch.PRESS_HOLD_AWAIT);
}
else {
e.preventDefault();
this.bindTouchmoveTouchend(e);
}
}
}
});
this.touchmoveOnDocument = (/**
* @param {?} e
* @return {?}
*/
(e) => {
if (this.shouldCancelPressHoldMove(e)) {
this.reset();
return;
}
});
this.touchmove = (/**
* @param {?} e
* @return {?}
*/
(e) => {
if (this.shouldCancelPressHoldMove(e)) {
this.reset();
return;
}
if (this.shouldHandleMove(e) || this.shouldHandlePressHoldMove(e)) {
/** @type {?} */
const target = this.getTarget(e);
// start dragging
if (this.dragSource && !this.img && this.shouldStartDragging(e)) {
this.dispatchEvent(e, 'dragstart', this.dragSource);
this.createImage(e);
}
// continue dragging
if (this.img) {
this.clearDragoverInterval();
this.lastTouch = e;
e.preventDefault(); // prevent scrolling
if (target !== this.lastTarget) {
// according to drag drop implementation of the browser, dragenterB is supposed to fired before dragleaveA
this.dispatchEvent(e, 'dragenter', target);
this.dispatchEvent(this.lastTouch, 'dragleave', this.lastTarget);
this.lastTarget = target;
}
this.moveImage(e);
this.isDropZone = this.dispatchEvent(e, 'dragover', target);
// should continue dispatch dragover event when touch position stay still
this.setDragoverInterval(e);
}
}
});
this.touchendOnDocument = (/**
* @param {?} e
* @return {?}
*/
(e) => {
if (this.shouldHandle(e)) {
if (!this.img) {
this.dragSource = null;
this.lastClick = Date.now();
}
// finish dragging
this.destroyImage();
if (this.dragSource) {
this.reset();
}
}
});
this.touchend = (/**
* @param {?} e
* @return {?}
*/
(e) => {
if (this.shouldHandle(e)) {
// user clicked the element but didn't drag, so clear the source and simulate a click
if (!this.img) {
this.dragSource = null;
// browser will dispatch click event after trigger touchend, since touchstart didn't preventDefault
// this._dispatchEvent(this._lastTouch, 'click', e.target);
this.lastClick = Date.now();
}
// finish dragging
this.destroyImage();
if (this.dragSource) {
if (e.type.indexOf('cancel') < 0 && this.isDropZone) {
this.dispatchEvent(this.lastTouch, 'drop', this.lastTarget);
}
this.dispatchEvent(this.lastTouch, 'dragend', this.dragSource);
this.reset();
}
}
});
// enforce singleton pattern
if (DragDropTouch.instance) {
throw new Error('DragDropTouch instance already created.');
}
// detect passive event support
// https://github.com/Modernizr/Modernizr/issues/1894
/** @type {?} */
let supportsPassive = false;
document.addEventListener('test', (/**
* @return {?}
*/
() => { }), {
/**
* @return {?}
*/
get passive() {
supportsPassive = true;
return true;
}
});
// listen to touch events
if (DragDropTouch.isTouchDevice()) {
// 能响应触摸事件
/** @type {?} */
const d = document;
/** @type {?} */
const ts = this.touchstart;
/** @type {?} */
const tmod = this.touchmoveOnDocument;
/** @type {?} */
const teod = this.touchendOnDocument;
/** @type {?} */
const opt = supportsPassive ? { passive: false, capture: false } : false;
/** @type {?} */
const optPassive = supportsPassive ? { passive: true } : false;
d.addEventListener('touchstart', ts, opt);
d.addEventListener('touchmove', tmod, optPassive);
d.addEventListener('touchend', teod);
d.addEventListener('touchcancel', teod);
this.touchmoveListener = this.touchmove;
this.touchendListener = this.touchend;
this.listenerOpt = opt;
}
}
/**
* Gets a reference to the \@see:DragDropTouch singleton.
* @return {?}
*/
static getInstance() {
if (!DragDropTouch.instance) {
DragDropTouch.instance = new DragDropTouch();
}
return DragDropTouch.instance;
}
/**
* @return {?}
*/
static isTouchDevice() {
/** @type {?} */
const d = document;
/** @type {?} */
const w = window;
/** @type {?} */
let bool;
if ('ontouchstart' in d // normal mobile device
|| 'ontouchstart' in w
|| navigator.maxTouchPoints > 0
|| navigator.msMaxTouchPoints > 0
|| window['DocumentTouch'] && document instanceof window['DocumentTouch']) {
bool = true;
}
else {
/** @type {?} */
const fakeBody = document.createElement('fakebody');
fakeBody.innerHTML += `
<style>
@media (touch-enabled),(-webkit-touch-enabled),(-moz-touch-enabled),(-o-touch-enabled){
#touch_test {
top: 42px;
position: absolute;
}
}
</style>`;
document.documentElement.appendChild(fakeBody);
/** @type {?} */
const touchTestNode = document.createElement('div');
touchTestNode.id = 'touch_test';
fakeBody.appendChild(touchTestNode);
bool = touchTestNode.offsetTop === 42;
fakeBody.parentElement.removeChild(fakeBody);
}
return bool;
}
// ** event listener binding
/**
* @param {?} e
* @return {?}
*/
bindTouchmoveTouchend(e) {
this.touchTarget = e.target;
e.target.addEventListener('touchmove', this.touchmoveListener, this.listenerOpt);
e.target.addEventListener('touchend', this.touchendListener);
e.target.addEventListener('touchcancel', this.touchendListener);
}
/**
* @return {?}
*/
removeTouchmoveTouchend() {
if (this.touchTarget) {
this.touchTarget.removeEventListener('touchmove', this.touchmoveListener);
this.touchTarget.removeEventListener('touchend', this.touchendListener);
this.touchTarget.removeEventListener('touchcancel', this.touchendListener);
this.touchTarget = undefined;
}
}
// ** utilities
// ignore events that have been handled or that involve more than one touch
/**
* @param {?} e
* @return {?}
*/
shouldHandle(e) {
return e &&
!e.defaultPrevented &&
e.touches && e.touches.length < 2;
}
// use regular condition outside of press & hold mode
/**
* @param {?} e
* @return {?}
*/
shouldHandleMove(e) {
return !DragDropTouch.IS_PRESS_HOLD_MODE && this.shouldHandle(e);
}
// allow to handle moves that involve many touches for press & hold
/**
* @param {?} e
* @return {?}
*/
shouldHandlePressHoldMove(e) {
return DragDropTouch.IS_PRESS_HOLD_MODE &&
this.isDragEnabled && e && e.touches && e.touches.length;
}
// reset data if user drags without pressing & holding
/**
* @param {?} e
* @return {?}
*/
shouldCancelPressHoldMove(e) {
return DragDropTouch.IS_PRESS_HOLD_MODE && !this.isDragEnabled &&
this.getDelta(e) > DragDropTouch.PRESS_HOLD_MARGIN;
}
// start dragging when mouseover element matches drag handler selector and specified delta is detected
/**
* @param {?} e
* @return {?}
*/
shouldStartDragging(e) {
/** @type {?} */
const dragHandleSelector = this.getDragHandle();
// start dragging when mouseover element matches drag handler selector
if (dragHandleSelector && !this.matchSelector(e.target, dragHandleSelector)) {
return false;
}
// start dragging when specified delta is detected
/** @type {?} */
const delta = this.getDelta(e);
return delta > DragDropTouch.THRESHOLD ||
(DragDropTouch.IS_PRESS_HOLD_MODE && delta >= DragDropTouch.PRESS_HOLD_THRESHOLD);
}
// find drag handler selector for dragstart only with partial element
/**
* @return {?}
*/
getDragHandle() {
if (this.dragSource) {
return this.dragSource.getAttribute(DragDropTouch.DRAG_HANDLE_ATTR) || '';
}
return '';
}
// test if element matches selector
/**
* @param {?} element
* @param {?} selector
* @return {?}
*/
matchSelector(element, selector) {
if (selector) {
/** @type {?} */
const proto = Element.prototype;
/** @type {?} */
const func = proto['matches'] ||
proto['matchesSelector'] ||
proto['mozMatchesSelector'] ||
proto['msMatchesSelector'] ||
proto['oMatchesSelector'] ||
proto['webkitMatchesSelector'] ||
(/**
* @param {?} s
* @return {?}
*/
function (s) {
/** @type {?} */
const matches = (this.document || this.ownerDocument).querySelectorAll(s);
/** @type {?} */
let i = matches.length;
while (--i >= 0 && matches.item(i) !== this) {
// do nothing
}
return i > -1;
});
return func.call(element, selector);
}
return true;
}
// clear all members
/**
* @return {?}
*/
reset() {
this.removeTouchmoveTouchend();
this.destroyImage();
this.dragSource = null;
this.lastTouch = null;
this.lastTarget = null;
this.ptDown = null;
this.isDragEnabled = false;
this.isDropZone = false;
this.dataTransfer = new DragDropTouch.DataTransfer();
clearInterval(this.pressHoldInterval);
this.clearDragoverInterval();
}
// get point for a touch event
/**
* @param {?} e
* @param {?=} page
* @return {?}
*/
getPoint(e, page) {
if (e && e.touches) {
e = e.touches[0];
}
return { x: page ? e.pageX : e.clientX, y: page ? e.pageY : e.clientY };
}
// get distance between the current touch event and the first one
/**
* @param {?} e
* @return {?}
*/
getDelta(e) {
if (DragDropTouch.IS_PRESS_HOLD_MODE && !this.ptDown) {
return 0;
}
/** @type {?} */
const p = this.getPoint(e);
return Math.abs(p.x - this.ptDown.x) + Math.abs(p.y - this.ptDown.y);
}
// get the element at a given touch event
/**
* @param {?} e
* @return {?}
*/
getTarget(e) {
/** @type {?} */
const pt = this.getPoint(e);
/** @type {?} */
let el = document.elementFromPoint(pt.x, pt.y);
while (el && getComputedStyle(el).pointerEvents === 'none') {
el = el.parentElement;
}
return (/** @type {?} */ (el));
}
// create drag image from source element
/**
* @param {?} e
* @return {?}
*/
createImage(e) {
// just in case...
if (this.img) {
this.destroyImage();
}
// create drag image from custom element or drag source
/** @type {?} */
const src = this.imgCustom || this.dragSource;
this.img = src.cloneNode(true);
this.copyStyle(src, this.img);
this.img.style.top = this.img.style.left = '-9999px';
// if creating from drag source, apply offset and opacity
if (!this.imgCustom) {
/** @type {?} */
const rc = src.getBoundingClientRect();
/** @type {?} */
const pt = this.getPoint(e);
this.imgOffset = { x: pt.x - rc.left, y: pt.y - rc.top };
this.img.style.opacity = DragDropTouch.OPACITY.toString();
}
// add image to document
this.moveImage(e);
document.body.appendChild(this.img);
}
// dispose of drag image element
/**
* @return {?}
*/
destroyImage() {
if (this.img && this.img.parentElement) {
this.img.parentElement.removeChild(this.img);
}
this.img = null;
this.imgCustom = null;
}
// move the drag image element
/**
* @param {?} e
* @return {?}
*/
moveImage(e) {
requestAnimationFrame((/**
* @return {?}
*/
() => {
if (this.img) {
/** @type {?} */
const pt = this.getPoint(e, true);
/** @type {?} */
const s = this.img.style;
s.position = 'absolute';
s.pointerEvents = 'none';
s.zIndex = '999999';
s.left = Math.round(pt.x - this.imgOffset.x) + 'px';
s.top = Math.round(pt.y - this.imgOffset.y) + 'px';
}
}));
}
// copy properties from an object to another
/**
* @param {?} dst
* @param {?} src
* @param {?} props
* @return {?}
*/
copyProps(dst, src, props) {
for (let i = 0; i < props.length; i++) {
/** @type {?} */
const p = props[i];
dst[p] = src[p];
}
}
// copy styles/attributes from drag source to drag image element
/**
* @param {?} src
* @param {?} dst
* @return {?}
*/
copyStyle(src, dst) {
// remove potentially troublesome attributes
DragDropTouch.rmvAttrs.forEach((/**
* @param {?} att
* @return {?}
*/
function (att) {
dst.removeAttribute(att);
}));
// copy canvas content
if (src instanceof HTMLCanvasElement) {
/** @type {?} */
const canSrc = src;
/** @type {?} */
const canDst = dst;
canDst.width = canSrc.width;
canDst.height = canSrc.height;
canDst.getContext('2d').drawImage(canSrc, 0, 0);
}
// copy canvas content for nested canvas element
/** @type {?} */
const srcCanvases = src.querySelectorAll('canvas');
if (srcCanvases.length > 0) {
/** @type {?} */
const dstCanvases = dst.querySelectorAll('canvas');
for (let i = 0; i < dstCanvases.length; i++) {
/** @type {?} */
const cSrc = srcCanvases[i];
/** @type {?} */
const cDst = dstCanvases[i];
cDst.getContext('2d').drawImage(cSrc, 0, 0);
}
}
// copy style (without transitions)
/** @type {?} */
const cs = getComputedStyle(src);
for (let i = 0; i < cs.length; i++) {
/** @type {?} */
const key = cs[i];
if (key.indexOf('transition') < 0) {
dst.style[key] = cs[key];
}
}
dst.style.pointerEvents = 'none';
// and repeat for all children
for (let i = 0; i < src.children.length; i++) {
this.copyStyle(src.children[i], dst.children[i]);
}
}
// synthesize and dispatch an event
// returns true if the event has been handled (e.preventDefault == true)
/**
* @param {?} e
* @param {?} type
* @param {?} target
* @return {?}
*/
dispatchEvent(e, type, target) {
if (e && target) {
/** @type {?} */
const evt = document.createEvent('Event');
/** @type {?} */
const t = e.touches ? e.touches[0] : e;
evt.initEvent(type, true, true);
/** @type {?} */
const obj = {
button: 0,
which: 0,
buttons: 1,
dataTransfer: this.dataTransfer
};
this.copyProps(evt, e, DragDropTouch.kbdProps);
this.copyProps(evt, t, DragDropTouch.ptProps);
this.copyProps(evt, { fromTouch: true }, ['fromTouch']); // mark as from touch event
this.copyProps(evt, obj, Object.keys(obj));
target.dispatchEvent(evt);
return evt.defaultPrevented;
}
return false;
}
// gets an element's closest draggable ancestor
/**
* @param {?} e
* @return {?}
*/
closestDraggable(e) {
for (; e; e = e.parentElement) {
if (e.hasAttribute('draggable') && e.draggable) {
return e;
}
}
return null;
}
// repeat dispatch dragover event when touch point stay still
/**
* @param {?} e
* @return {?}
*/
setDragoverInterval(e) {
this.dragoverTimer = setInterval((/**
* @return {?}
*/
() => {
/** @type {?} */
const target = this.getTarget(e);
if (target !== this.lastTarget) {
this.dispatchEvent(e, 'dragenter', target);
this.dispatchEvent(e, 'dragleave', this.lastTarget);
this.lastTarget = target;
}
this.isDropZone = this.dispatchEvent(e, 'dragover', target);
}), DragDropTouch.DRAG_OVER_TIME);
}
/**
* @return {?}
*/
clearDragoverInterval() {
if (this.dragoverTimer) {
clearInterval(this.dragoverTimer);
this.dragoverTimer = undefined;
}
}
}
DragDropTouch.THRESHOLD = 5; // pixels to move before drag starts
// pixels to move before drag starts
DragDropTouch.OPACITY = 0.5; // drag image opacity
// drag image opacity
DragDropTouch.DBLCLICK = 500; // max ms between clicks in a double click
// max ms between clicks in a double click
DragDropTouch.DRAG_OVER_TIME = 300; // interval ms when drag over
// interval ms when drag over
DragDropTouch.CTX_MENU = 900; // ms to hold before raising 'contextmenu' event
// ms to hold before raising 'contextmenu' event
DragDropTouch.IS_PRESS_HOLD_MODE = true; // decides of press & hold mode presence
// decides of press & hold mode presence
DragDropTouch.PRESS_HOLD_AWAIT = 400; // ms to wait before press & hold is detected
// ms to wait before press & hold is detected
DragDropTouch.PRESS_HOLD_MARGIN = 25; // pixels that finger might shiver while pressing
// pixels that finger might shiver while pressing
DragDropTouch.PRESS_HOLD_THRESHOLD = 0; // pixels to move before drag starts
// pixels to move before drag starts
DragDropTouch.DRAG_HANDLE_ATTR = 'data-drag-handle-selector';
DragDropTouch.rmvAttrs = 'id,class,style,draggable'.split(',');
DragDropTouch.kbdProps = 'altKey,ctrlKey,metaKey,shiftKey'.split(',');
DragDropTouch.ptProps = 'pageX,pageY,clientX,clientY,screenX,screenY'.split(',');
DragDropTouch.instance = null;
if (false) {
/** @type {?} */
DragDropTouch.THRESHOLD;
/** @type {?} */
DragDropTouch.OPACITY;
/** @type {?} */
DragDropTouch.DBLCLICK;
/** @type {?} */
DragDropTouch.DRAG_OVER_TIME;
/** @type {?} */
DragDropTouch.CTX_MENU;
/** @type {?} */
DragDropTouch.IS_PRESS_HOLD_MODE;
/** @type {?} */
DragDropTouch.PRESS_HOLD_AWAIT;
/** @type {?} */
DragDropTouch.PRESS_HOLD_MARGIN;
/** @type {?} */
DragDropTouch.PRESS_HOLD_THRESHOLD;
/** @type {?} */
DragDropTouch.DRAG_HANDLE_ATTR;
/** @type {?} */
DragDropTouch.rmvAttrs;
/** @type {?} */
DragDropTouch.kbdProps;
/** @type {?} */
DragDropTouch.ptProps;
/**
* @type {?}
* @private
*/
DragDropTouch.instance;
/** @type {?} */
DragDropTouch.prototype.dataTransfer;
/** @type {?} */
DragDropTouch.prototype.lastClick;
/** @type {?} */
DragDropTouch.prototype.lastTouch;
/** @type {?} */
DragDropTouch.prototype.lastTarget;
/** @type {?} */
DragDropTouch.prototype.dragSource;
/** @type {?} */
DragDropTouch.prototype.ptDown;
/** @type {?} */
DragDropTouch.prototype.isDragEnabled;
/** @type {?} */
DragDropTouch.prototype.isDropZone;
/** @type {?} */
DragDropTouch.prototype.pressHoldInterval;
/** @type {?} */
DragDropTouch.prototype.img;
/** @type {?} */
DragDropTouch.prototype.imgCustom;
/** @type {?} */
DragDropTouch.prototype.imgOffset;
/** @type {?} */
DragDropTouch.prototype.dragoverTimer;
/** @type {?} */
DragDropTouch.prototype.touchTarget;
/** @type {?} */
DragDropTouch.prototype.touchmoveListener;
/** @type {?} */
DragDropTouch.prototype.touchendListener;
/** @type {?} */
DragDropTouch.prototype.listenerOpt;
/** @type {?} */
DragDropTouch.prototype.touchstart;
/** @type {?} */
DragDropTouch.prototype.touchmoveOnDocument;
/** @type {?} */
DragDropTouch.prototype.touchmove;
/** @type {?} */
DragDropTouch.prototype.touchendOnDocument;
/** @type {?} */
DragDropTouch.prototype.touchend;
}
(function (DragDropTouch) {
/**
* Object used to hold the data that is being dragged during drag and drop operations.
*
* It may hold one or more data items of different types. For more information about
* drag and drop operations and data transfer objects, see
* <a href="https://developer.mozilla.org/en-US/docs/Web/API/DataTransfer">HTML Drag and Drop API</a>.
*
* This object is created automatically by the \@see:DragDropTouch singleton and is
* accessible through the \@see:dataTransfer property of all drag events.
*/
class DataTransfer {
constructor() {
this._dropEffect = 'move';
this._effectAllowed = 'all';
this._data = {};
}
/**
* @return {?}
*/
get dropEffect() {
return this._dropEffect;
}
/**
* @param {?} value
* @return {?}
*/
set dropEffect(value) {
this._dropEffect = value;
}
/**
* @return {?}
*/
get effectAllowed() {
return this._effectAllowed;
}
/**
* @param {?} value
* @return {?}
*/
set effectAllowed(value) {
this._effectAllowed = value;
}
/**
* @return {?}
*/
get types() {
return Object.keys(this._data);
}
/**
* Removes the data associated with a given type.
*
* The type argument is optional. If the type is empty or not specified, the data
* associated with all types is removed. If data for the specified type does not exist,
* or the data transfer contains no data, this method will have no effect.
*
* @param {?} type Type of data to remove.
* @return {?}
*/
clearData(type) {
if (type !== null) {
delete this._data[type];
}
else {
this._data = null;
}
}
/**
* Retrieves the data for a given type, or an empty string if data for that type does
* not exist or the data transfer contains no data.
*
* @param {?} type Type of data to retrieve.
* @return {?}
*/
getData(type) {
return this._data[type] || '';
}
/**
* Set the data for a given type.
*
* For a list of recommended drag types, please see
* https://developer.mozilla.org/en-US/docs/Web/Guide/HTML/Recommended_Drag_Types.
*
* @param {?} type Type of data to add.
* @param {?} value Data to add.
* @return {?}
*/
setData(type, value) {
this._data[type] = value;
}
/**
* Set the image to be used for dragging if a custom one is desired.
*
* @param {?} img An image element to use as the drag feedback image.
* @param {?} offsetX The horizontal offset within the image.
* @param {?} offsetY The vertical offset within the image.
* @return {?}
*/
setDragImage(img, offsetX, offsetY) {
/** @type {?} */
const ddt = DragDropTouch.getInstance();
ddt.imgCustom = img;
ddt.imgOffset = { x: offsetX, y: offsetY };
}
}
DragDropTouch.DataTransfer = DataTransfer;
if (false) {
/** @type {?} */
DataTransfer.prototype.files;
/** @type {?} */
DataTransfer.prototype.items;
/**
* @type {?}
* @private
*/
DataTransfer.prototype._data;
/**
* Gets or sets the type of drag-and-drop operation currently selected.
* The value must be 'none', 'copy', 'link', or 'move'.
* @type {?}
* @private
*/
DataTransfer.prototype._dropEffect;
/**
* Gets or sets the types of operations that are possible.
* Must be one of 'none', 'copy', 'copyLink', 'copyMove', 'link',
* 'linkMove', 'move', 'all' or 'uninitialized'.
* @type {?}
* @private
*/
DataTransfer.prototype._effectAllowed;
/**
* Gets an array of strings giving the formats that were set in the \@see:dragstart event.
* @type {?}
* @private
*/
DataTransfer.prototype._types;
}
})(DragDropTouch || (DragDropTouch = {}));
/**
* @fileoverview added by tsickle
* Generated from: shared/utils.ts
* @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
class Utils {
/**
* Polyfill for element.matches.
* See: https://developer.mozilla.org/en/docs/Web/API/Element/matches#Polyfill
* element
* @param {?} element
* @param {?} selectorName
* @return {?}
*/
static matches(element, selectorName) {
/** @type {?} */
const proto = Element.prototype;
/** @type {?} */
const func = proto['matches'] ||
proto.matchesSelector ||
proto.mozMatchesSelector ||
proto.msMatchesSelector ||
proto.oMatchesSelector ||
proto.webkitMatchesSelector ||
(/**
* @param {?} s
* @return {?}
*/
function (s) {
/** @type {?} */
const matches = (this.document || this.ownerDocument).querySelectorAll(s);
/** @type {?} */
let i = matches.length;
while (--i >= 0 && matches.item(i) !== this) {
// do nothing
}
return i > -1;
});
return func.call(element, selectorName);
}
/**
* Applies the specified css class on nativeElement
* elementRef
* className
* @param {?} elementRef
* @param {?} className
* @return {?}
*/
static addClass(elementRef, className) {
if (className === undefined) {
return;
}
/** @type {?} */
const e = this.getElementWithValidClassList(elementRef);
if (e) {
e.classList.add(className);
}
}
/**
* Removes the specified class from nativeElement
* elementRef
* className
* @param {?} elementRef
* @param {?} className
* @return {?}
*/
static removeClass(elementRef, className) {
if (className === undefined) {
return;
}
/** @type {?} */
const e = this.getElementWithValidClassList(elementRef);
if (e) {
e.classList.remove(className);
}
}
/**
* Gets element with valid classList
*
* elementRef
* @private
* @param {?} elementRef
* @return {?} ElementRef | null
*/
static getElementWithValidClassList(elementRef) {
/** @type {?} */
const e = elementRef instanceof ElementRef ? elementRef.nativeElement : elementRef;
if (e.classList !== undefined && e.classList !== null) {
return e;
}
return null;
}
/**
* @param {?} args
* @param {?=} slice
* @param {?=} sliceEnd
* @return {?}
*/
static slice(args, slice, sliceEnd) {
/** @type {?} */
const ret = [];
/** @type {?} */
let len = args.length;
if (0 === len) {
return ret;
}
/** @type {?} */
const start = slice < 0
? Math.max(0, slice + len)
: slice || 0;
if (sliceEnd !== undefined) {
len = sliceEnd < 0
? sliceEnd + len
: sliceEnd;
}
while (len-- > start) {
ret[len - start] = args[len];
}
return ret;
}
// 动态添加styles
/**
* @param {?} el
* @param {?} styles
* @return {?}
*/
static addElStyles(el, styles) {
if (styles instanceof Object) {
for (const s in styles) {
if (styles.hasOwnProperty(s)) {
if (Array.isArray(styles[s])) {
// 用于支持兼容渐退
styles[s].forEach((/**
* @param {?} val
* @return {?}
*/
val => {
el.style[s] = val;
}));
}
else {
el.style[s] = styles[s];
}
}
}
}
}
}
/**
* @fileoverview added by tsickle
* Generated from: services/drag-drop.service.ts
* @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
class DragDropService {
/**
* @param {?} ngZone
*/
constructor(ngZone) {
this.ngZone = ngZone;
this.dropTargets = [];
this.dropEvent = new Subject();
this.dragEndEvent = new Subject();
this.dragStartEvent = new Subject();
this.subscription = Observable.create().subscribe();
this.dragEmptyImage = new Image();
this.dragItemParentName = '';
this.dragItemChildrenName = '';
this.intersectionObserver = null;
/*协同拖拽需要 */
this.dragElShowHideEvent = new Subject();
this.followMouse4CloneNode = (/**
* @param {?} event
* @return {?}
*/
(event) => {
const { offsetLeft, offsetTop } = this.dragOffset;
const { clientX, clientY } = event;
requestAnimationFrame((/**
* @return {?}
*/
() => {
if (!this.dragCloneNode) {
return;
}
this.dragCloneNode.style.left = clientX - offsetLeft + 'px';
this.dragCloneNode.style.top = clientY - offsetTop + 'px';
}));
});
this.touchInstance = DragDropTouch.getInstance();
// service not support OnInit, only support OnDestroy, so write in constructor
// tslint:disable-next-line: max-line-length
this.dragEmptyImage.src = 'data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQImWNgYGBgAAAABQABh6FO1AAAAABJRU5ErkJggg=='; // safari的img必须要有src
}
/**
* @return {?}
*/
newSubscription() {
this.subscription.unsubscribe();
return this.subscription = Observable.create().subscribe();
}
/**
* @return {?}
*/
enableDraggedCloneNodeFollowMouse() {
if (!this.dragCloneNode) {
this.dragItemContainer = this.draggedEl.parentElement;
if (this.dragPreviewDirective && this.dragPreviewDirective.dragPreviewTemplate) {
this.dragPreviewDirective.createPreview();
this.dragCloneNode = this.dragPreviewDirective.getPreviewElement();
this.dragItemContainer = document.body;
}
else {
this.dragCloneNode = this.draggedEl.cloneNode(true);
}
this.dragCloneNode.style.margin = '0';
if (this.dragFollowOptions && this.dragFollowOptions.appendToBody) {
this.dragItemContainer = document.body;
this.copyStyle(this.draggedEl, this.dragCloneNode);
}
if (this.dragItemChildrenName !== '') {
/** @type {?} */
const parentElement = this.dragItemParentName === '' ? this.dragCloneNode : document.querySelector(this.dragItemParentName);
/** @type {?} */
const dragItemChildren = parentElement.querySelectorAll(this.dragItemChildrenName);
this.interceptChildNode(parentElement, dragItemChildren);
}
// 拷贝canvas的内容
/** @type {?} */
const originCanvasArr = this.draggedEl.querySelectorAll('canvas');
/** @type {?} */
const targetCanvasArr = this.dragCloneNode.querySelectorAll('canvas');
[].forEach.call(targetCanvasArr, (/**
* @param {?} canvas
* @param {?} index
* @return {?}
*/
(canvas, index) => {
canvas.getContext('2d').drawImage(originCanvasArr[index], 0, 0);
}));
this.ngZone.runOutsideAngular((/**
* @return {?}
*/
() => {
document.addEventListener('dragover', this.followMouse4CloneNode, { capture: true, passive: true });
}));
this.dragCloneNode.style.width = this.dragOffset.width + 'px';
this.dragCloneNode.style.height = this.dragOffset.height + 'px';
if (!(this.dragPreviewDirective
&& this.dragPreviewDirective.dragPreviewTemplate
&& this.dragPreviewDirective.dragPreviewOptions
&& this.dragPreviewDirective.dragPreviewOptions.skipBatchPreview)) {
// 批量拖拽样式
if (this.batchDragging && this.batchDragData && this.batchDragData.length > 1) {
// 创建一个节点容器
/** @type {?} */
const node = document.createElement('div');
node.appendChild(this.dragCloneNode);
node.classList.add('batch-dragged-node');
/* 计数样式定位 */
if (this.batchDragStyle && this.batchDragStyle.length && this.batchDragStyle.indexOf('badge') > -1) {
/** @type {?} */
const badge = document.createElement('div');
badge.innerText = this.batchDragData.length + '';
badge.classList.add('batch-dragged-node-count');
node.style.position = 'relative';
/** @type {?} */
const style = {
position: 'absolute',
right: '5px',
top: '-12px',
height: '24px',
width: '24px',
borderRadius: '12px',
fontSize: '14px',
lineHeight: '24px',
textAlign: 'center',
color: '#fff',
background: ['#5170ff', 'var(--brand-1, #5170ff)']
};
Utils.addElStyles(badge, style);
node.appendChild(badge);
}
/* 层叠感样式定位 */
if (this.batchDragStyle && this.batchDragStyle.length && this.batchDragStyle.indexOf('stack') > -1) {
/** @type {?} */
let stack = 2;
if (this.batchDragData.length === 2) {
stack = 1;
}
for (let i = 0; i < stack; i++) {
/** @type {?} */
const stackNode = this.dragCloneNode.cloneNode(false);
/** @type {?} */
const stackStyle = {
position: 'absolute',
left: -5 * (i + 1) + 'px',
top: -5 * (i + 1) + 'px',
zIndex: -(i + 1) + '',
width: this.dragOffset.width + 'px',
height: this.dragOffset.height + 'px',
background: '#fff',
border: ['1px solid #5170ff', '1px solid var(--brand-1, #5170ff)']
};
Utils.addElStyles(stackNode, stackStyle);
node.appendChild(stackNode);
}
}
this.dragCloneNode = node;
}
}
this.dragCloneNode.classList.add('drag-clone-node');
if (!(this.dragPreviewDirective && this.dragPreviewDirective.dragPreviewTemplate)) {
this.dragCloneNode.style.width = this.dragOffset.width + 'px';
this.dragCloneNode.style.height = this.dragOffset.height + 'px';
}
this.dragCloneNode.style.position = 'fixed';
this.dragCloneNode.style.zIndex = '1090';
this.dragCloneNode.style.pointerEvents = 'none';
this.dragCloneNode.style.top = this.dragOffset.top + 'px';
this.dragCloneNode.style.left = this.dragOffset.left + 'px';
this.dragCloneNode.style.willChange = 'left, top';
this.dragItemContainer.appendChild(this.dragCloneNode);
this.ngZone.runOutsideAngular((/**
* @return {?}
*/
() => {
setTimeout((/**
* @return {?}
*/
() => {
if (this.draggedEl) {
this.draggedEl.style.display = 'none';
this.dragElShowHideEvent.next(false);
if (this.dragOriginPlaceholder) {
this.dragOriginPlaceholder.style.display = 'block';
}
}
}));
}));
}
}
/**
* @return {?}
*/
disableDraggedCloneNodeFollowMouse() {
if (this.dragCloneNode) {
document.removeEventListener('dragover', this.followMouse4CloneNode, { capture: true });
this.dragItemContainer.removeChild(this.dragCloneNode);
this.draggedEl.style.display = '';
this.dragElShowHideEvent.next(true);
}
if (this.dragPreviewDirective && this.dragPreviewDirective.dragPreviewTemplate) {
this.dragPreviewDirective.destroyPreview();
}
this.dragCloneNode = undefined;
this.dragItemContainer = undefined;
if (this.intersectionObserver) {
this.intersectionObserver.disconnect();
}
}
/**
* @param {?} parentNode
* @param {?} childNodeList
* @return {?}
*/
interceptChildNode(parentNode, childNodeList) {
/** @type {?} */
const interceptOptions = {
root: parentNode
};
this.intersectionObserver = new IntersectionObserver(this.setChildNodeHide, interceptOptions);
[].forEach.call(childNodeList, (/**
* @param {?} childNode
* @return {?}
*/
childNode => {
this.intersectionObserver.observe(childNode);
}));
}
/**
* @param {?} entries
* @return {?}
*/
setChildNodeHide(entries) {
entries.forEach((/**
* @param {?} element
* @return {?}
*/
element => {
const { isIntersecting, target: childNode } = element;
if (isIntersecting) {
childNode.style.display = 'block';
}
else {
childNode.style.display = 'none';
}
}));
}
/**
* @param {?=} identity
* @param {?=} order
* @return {?}
*/
getBatchDragData(identity, order = 'draggedElFirst') {
/** @type {?} */
const result = this.batchDragData.map((/**
* @param {?} dragData
* @return {?}
*/
dragData => dragData.dragData));
if (typeof order === 'function') {
result.sort((/** @type {?} */ (order)));
}
else if (order === 'draggedElFirst') {
/** @type {?} */
let dragData = this.dragData;
if (identity) {
/** @type {?} */
const realDragData = this.batchDragData.filter((/**
* @param {?} dd
* @return {?}
*/
dd => dd.identity === identity)).pop().dragData;
dragData = realDragData;
}
result.splice(result.indexOf(dragData), 1);
result.splice(0, 0, dragData);
}
return result;
}
/**
* usage:
* constructor(..., private dragDropService: DragDropService) {}
* cleanBatchDragData() { this.dragDropService.cleanBatchDragData(); }
* @return {?}
*/
cleanBatchDragData() {
/** @type {?} */
const batchDragData = this.batchDragData;
if (this.batchDragData) {
this.batchDragData
.filter((/**
* @param {?} dragData
* @return {?}
*/
dragData => dragData.draggable))
.map((/**
* @param {?} dragData
* @return {?}
*/
dragData => dragData.draggable))
.forEach((/**
* @param {?} draggable
* @return {?}
*/
draggable => draggable.batchDraggable.dragData = undefined));
this.batchDragData = undefined;
this.batchDragGroup = undefined;
}
return batchDragData;
}
/**
* @param {?} source
* @param {?} target
* @return {?}
*/
copyStyle(source, target) {
['id', 'class', 'style', 'draggable'].forEach((/**
* @param {?} att
* @return {?}
*/
function (att) {
target.removeAttribute(att);
}));
// copy style (without transitions)
/** @type {?} */
const computedStyle = getComputedStyle(source);
for (let i = 0; i < computedStyle.length; i++) {
/** @type {?} */
const key = computedStyle[i];
if (key.indexOf('transition') < 0) {
target.style[key] = computedStyle[key];
}
}
target.style.pointerEvents = 'none';
// and repeat for all children
for (let i = 0; i < source.children.length; i++) {
this.copyStyle(source.children[i], target.children[i]);
}
}
}
DragDropService.decorators = [
{ type: Injectable }
];
/** @nocollapse */
DragDropService.ctorParameters = () => [
{ type: NgZone }
];
if (false) {
/** @type {?} */
DragDropService.prototype.dragData;
/** @type {?} */
DragDropService.prototype.draggedEl;
/** @type {?} */
DragDropService.prototype.draggedElIdentity;
/** @type {?} */
DragDropService.prototype.batchDragData;
/** @type {?} */
DragDropService.prototype.batchDragGroup;
/** @type {?} */
DragDropService.prototype.batchDragStyle;
/** @type {?} */
DragDropService.prototype.batchDragging;
/** @type {?} */
DragDropService.prototype.scope;
/** @type {?} */
DragDropService.prototype.dropTargets;
/** @type {?} */
DragDropService.prototype.dropEvent;
/** @type {?} */
DragDropService.prototype.dragEndEvent;
/** @type {?} */
DragDropService.prototype.dragStartEvent;
/** @type {?} */
DragDropService.prototype.dropOnItem;
/** @type {?} */
DragDropService.prototype.dragFollow;
/** @type {?} */
DragDropService.prototype.dragFollowOptions;
/** @type {?} */
DragDropService.prototype.dropOnOrigin;
/** @type {?} */
DragDropService.prototype.draggedElFollowingMouse;
/** @type {?} */
DragDropService.prototype.dragOffset;
/** @type {?} */
DragDropService.prototype.subscription;
/** @type {?} */
DragDropService.prototy