/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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import Element, { ElementProps } from 'zrender/src/Element';
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import { ZREasing } from './types';
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import { AnimationEasing } from 'zrender/src/animation/easing';
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interface AnimationWrapStorage {
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el: Element;
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target: ElementProps;
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duration: number;
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delay: number;
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easing: AnimationEasing
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}
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type AnimationWrapDoneCallback = () => void;
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/**
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* Animate multiple elements with a single done-callback.
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*
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* @example
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* animation
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* .createWrap()
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* .add(el1, {x: 10, y: 10})
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* .add(el2, {shape: {width: 500}, style: {fill: 'red'}}, 400)
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* .done(function () { // done })
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* .start('cubicOut');
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*/
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class AnimationWrap {
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private _storage = [] as AnimationWrapStorage[];
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private _elExistsMap: { [elId: string]: boolean } = {};
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private _finishedCallback: AnimationWrapDoneCallback;
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/**
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* Caution: a el can only be added once, otherwise 'done'
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* might not be called. This method checks this (by el.id),
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* suppresses adding and returns false when existing el found.
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*
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* @return Whether adding succeeded.
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*/
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add(
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el: Element,
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target: ElementProps,
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duration?: number,
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delay?: number,
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easing?: ZREasing
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): boolean {
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if (this._elExistsMap[el.id]) {
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return false;
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}
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this._elExistsMap[el.id] = true;
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this._storage.push({
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el: el,
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target: target,
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duration: duration,
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delay: delay,
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easing: easing
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});
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return true;
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}
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/**
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* Only execute when animation done/aborted.
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*/
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finished(callback: AnimationWrapDoneCallback): AnimationWrap {
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this._finishedCallback = callback;
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return this;
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}
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/**
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* Will stop exist animation firstly.
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*/
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start(): AnimationWrap {
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let count = this._storage.length;
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const checkTerminate = () => {
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count--;
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if (count <= 0) { // Guard.
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this._storage.length = 0;
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this._elExistsMap = {};
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this._finishedCallback && this._finishedCallback();
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}
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};
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for (let i = 0, len = this._storage.length; i < len; i++) {
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const item = this._storage[i];
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item.el.animateTo(item.target, {
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duration: item.duration,
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delay: item.delay,
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easing: item.easing,
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setToFinal: true,
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done: checkTerminate,
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aborted: checkTerminate
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});
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}
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return this;
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}
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}
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export function createWrap(): AnimationWrap {
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return new AnimationWrap();
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}
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