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| 1 | +import MdPlayArrow from '@material-design-icons/svg/round/play_arrow.svg'; |
| 2 | +import MdStop from '@material-design-icons/svg/round/stop.svg'; |
| 3 | +import { AnimationFrame, createEffectOn, t } from 'helper'; |
| 4 | +import { createMemo } from 'solid-js'; |
| 5 | + |
| 6 | +import { _setState, store } from '../store'; |
| 7 | +import { |
| 8 | + isAbreastMode, |
| 9 | + isBottom, |
| 10 | + isScrollMode, |
| 11 | + scrollProgress, |
| 12 | + scrollTo, |
| 13 | + scrollTop, |
| 14 | + switchAutoScroll, |
| 15 | + turnPage, |
| 16 | +} from '../actions'; |
| 17 | +import { IconButton } from '../../IconButton'; |
| 18 | + |
| 19 | +const autoScroll = new (class extends AnimationFrame { |
| 20 | + /** 上次滚动的时间 */ |
| 21 | + lastTime = 0; |
| 22 | + |
| 23 | + scroll = () => { |
| 24 | + if (store.show.endPage === 'end') { |
| 25 | + this.stop(); |
| 26 | + if (store.option.autoScroll.triggerEnd) turnPage('next'); |
| 27 | + return; |
| 28 | + } |
| 29 | + |
| 30 | + if (!store.option.scrollMode.enabled) turnPage('next'); |
| 31 | + else if (isScrollMode()) |
| 32 | + scrollTo(scrollTop() + store.option.autoScroll.distance, true); |
| 33 | + else if (isAbreastMode()) |
| 34 | + scrollTo( |
| 35 | + scrollProgress() - |
| 36 | + (store.option.dir === 'rtl' ? -1 : 1) * |
| 37 | + store.option.autoScroll.distance, |
| 38 | + true, |
| 39 | + ); |
| 40 | + |
| 41 | + if (!isBottom()) return; |
| 42 | + if (!store.prop.onExit) return this.stop(); |
| 43 | + return _setState('show', 'endPage', 'end'); |
| 44 | + }; |
| 45 | + |
| 46 | + frame = (timestamp: DOMHighResTimeStamp) => { |
| 47 | + const elapsed = timestamp - this.lastTime; |
| 48 | + let progress: number; |
| 49 | + if (elapsed >= store.option.autoScroll.interval) { |
| 50 | + this.lastTime = timestamp; |
| 51 | + this.scroll(); |
| 52 | + progress = 1; |
| 53 | + } |
| 54 | + if (!store.autoScroll.play) return; |
| 55 | + |
| 56 | + progress ||= elapsed / store.option.autoScroll.interval; |
| 57 | + _setState('autoScroll', 'progress', progress); |
| 58 | + this.call(); |
| 59 | + }; |
| 60 | + |
| 61 | + start = () => { |
| 62 | + this.lastTime = 0; |
| 63 | + this.call(); |
| 64 | + }; |
| 65 | + |
| 66 | + stop = () => { |
| 67 | + this.cancel(); |
| 68 | + _setState('autoScroll', 'play', false); |
| 69 | + }; |
| 70 | +})(); |
| 71 | + |
| 72 | +createEffectOn( |
| 73 | + () => [...Object.values(store.option.autoScroll), store.autoScroll.play], |
| 74 | + () => { |
| 75 | + autoScroll.cancel(); |
| 76 | + if (!store.option.autoScroll.enabled || !store.autoScroll.play) return; |
| 77 | + autoScroll.start(); |
| 78 | + }, |
| 79 | +); |
| 80 | + |
| 81 | +// 点击屏幕中间停止自动滚动 |
| 82 | +createEffectOn( |
| 83 | + () => store.show.toolbar, |
| 84 | + (show) => show && autoScroll.stop(), |
| 85 | +); |
| 86 | + |
| 87 | +export const AutoScrollButton = () => { |
| 88 | + const background = createMemo(() => { |
| 89 | + if (!store.autoScroll.play) return undefined; |
| 90 | + const deg = (store.autoScroll.progress * 360) % 360; |
| 91 | + return `conic-gradient(var(--text-secondary) 0deg, var(--text-secondary) ${deg}deg, var(--text) ${deg}deg)`; |
| 92 | + }); |
| 93 | + |
| 94 | + return ( |
| 95 | + <IconButton |
| 96 | + tip={t('button.auto_scroll')} |
| 97 | + enabled={store.autoScroll.play} |
| 98 | + style={{ background: background() }} |
| 99 | + onClick={switchAutoScroll} |
| 100 | + children={store.autoScroll.play ? <MdStop /> : <MdPlayArrow />} |
| 101 | + /> |
| 102 | + ); |
| 103 | +}; |
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