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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
import { AnimationEasing } from 'zrender/src/animation/easing';
import Element from 'zrender/src/Element';
import { keys, filter, each, isArray, indexOf } from 'zrender/src/core/util';
import { ELEMENT_ANIMATABLE_PROPS } from './customGraphicTransition';
import { AnimationOption, AnimationOptionMixin, Dictionary } from '../util/types';
import type Model from '../model/Model';
import { getAnimationConfig } from './basicTransition';
import { warn } from '../util/log';
import { makeInner } from '../util/model';
// Helpers for creating keyframe based animations in custom series and graphic components.
type AnimationKeyframe<T extends Record<string, any>> = T & {
easing?: AnimationEasing
percent?: number // 0 - 1
};
type StateToRestore = Dictionary<any>;
const getStateToRestore = makeInner<StateToRestore, Element>();
const KEYFRAME_EXCLUDE_KEYS = ['percent', 'easing', 'shape', 'style', 'extra'] as const;
export interface ElementKeyframeAnimationOption<Props extends Record<string, any>> extends AnimationOption {
// Animation configuration for keyframe based animation.
loop?: boolean
keyframes?: AnimationKeyframe<Props>[]
}
/**
* Stop previous keyframe animation and restore the attributes.
* Avoid new keyframe animation starts with wrong internal state when the percent: 0 is not set.
*/
export function stopPreviousKeyframeAnimationAndRestore(el: Element) {
// Stop previous keyframe animation.
el.stopAnimation('keyframe');
// Restore
el.attr(getStateToRestore(el));
}
export function applyKeyframeAnimation<T extends Record<string, any>>(
el: Element,
animationOpts: ElementKeyframeAnimationOption<T> | ElementKeyframeAnimationOption<T>[],
animatableModel: Model<AnimationOptionMixin>
) {
if (!animatableModel.isAnimationEnabled() || !animationOpts) {
return;
}
if (isArray(animationOpts)) {
each(animationOpts, singleAnimationOpts => {
applyKeyframeAnimation(el, singleAnimationOpts, animatableModel);
});
return;
}
const keyframes = animationOpts.keyframes;
let duration = animationOpts.duration;
if (animatableModel && duration == null) {
// Default to use duration of config.
// NOTE: animation config from payload will be ignored because they are mainly for transitions.
const config = getAnimationConfig('enter', animatableModel, 0);
duration = config && config.duration;
}
if (!keyframes || !duration) {
return;
}
const stateToRestore: StateToRestore = getStateToRestore(el);
each(ELEMENT_ANIMATABLE_PROPS, (targetPropName) => {
if (targetPropName && !(el as any)[targetPropName]) {
return;
}
let animator: ReturnType<Element['animate']>;
let endFrameIsSet = false;
// Sort keyframes by percent.
keyframes.sort((a, b) => a.percent - b.percent);
each(keyframes, kf => {
// Stop current animation.
const animators = el.animators;
const kfValues = targetPropName ? kf[targetPropName] : kf;
if (__DEV__) {
if (kf.percent >= 1) {
endFrameIsSet = true;
}
}
if (!kfValues) {
return;
}
let propKeys = keys(kfValues);
if (!targetPropName) {
// PENDING performance?
propKeys = filter(propKeys, key => indexOf(KEYFRAME_EXCLUDE_KEYS, key) < 0);
}
if (!propKeys.length) {
return;
}
if (!animator) {
animator = el.animate(targetPropName, animationOpts.loop, true);
animator.scope = 'keyframe';
}
for (let i = 0; i < animators.length; i++) {
// Stop all other animation that is not keyframe.
if (animators[i] !== animator && animators[i].targetName === animator.targetName) {
animators[i].stopTracks(propKeys);
}
}
targetPropName && (stateToRestore[targetPropName] = stateToRestore[targetPropName] || {});
const savedTarget = targetPropName ? stateToRestore[targetPropName] : stateToRestore;
each(propKeys, key => {
// Save original value.
savedTarget[key] = ((targetPropName ? (el as any)[targetPropName] : el) || {})[key];
});
animator.whenWithKeys(duration * kf.percent, kfValues, propKeys, kf.easing);
});
if (!animator) {
return;
}
if (__DEV__) {
if (!endFrameIsSet) {
warn('End frame with percent: 1 is missing in the keyframeAnimation.', true);
}
}
animator
.delay(animationOpts.delay || 0)
.duration(duration)
.start(animationOpts.easing);
});
}
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