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Optimize setBar event and add lazy loading for thumbnails in artplayer-plugin-chapter

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Harvey Zack committed 2024-06-02 23:55:20 +08:00
1 parent d99fa9447a
commit e8d7ae91f0
3 files changed
+63 -58
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docs/uncompiled/artplayer-plugin-chapter/index.js
+29 -24
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@@ -161,20 +161,21 @@ function artplayerPluginChapter({ chapters = [] }) {
</div>
</div>
`;
let titleTimer = null;
let $chapters = [];
const $progress = art.query(".art-control-progress");
const $inner = art.query(".art-control-progress-inner");
const $control = append($inner, '<div class="art-chapters"></div>');
const $title = append($inner, '<div class="art-chapter-title"></div>');
art.on("setBar", (type, percentage)=>{
function showTitle({ $chapter, width }) {
$title.innerText = $chapter.dataset.title || "";
const titleWidth = $title.clientWidth;
if (width <= titleWidth / 2) setStyle($title, "left", 0);
else if (width > $inner.clientWidth - titleWidth / 2) setStyle($title, "left", `${$inner.clientWidth - titleWidth}px`);
else setStyle($title, "left", `${width - titleWidth / 2}px`);
}
art.on("setBar", (type, percentage, event)=>{
if (!$chapters.length) return;
const currentTime = art.duration * percentage;
const index = $chapters.findIndex(({ $chapter })=>{
const start = parseFloat($chapter.dataset.start);
const end = parseFloat($chapter.dataset.end);
return art.currentTime >= start && art.currentTime <= end;
});
if (index === -1) return;
for(let i = 0; i < $chapters.length; i++){
const { $chapter, $loaded, $played, $hover } = $chapters[i];
const $target = {
@@ -183,6 +184,8 @@ function artplayerPluginChapter({ chapters = [] }) {
played: $played
}[type];
if (!$target) return;
const width = $control.clientWidth * percentage;
const currentTime = art.duration * percentage;
const duration = parseFloat($chapter.dataset.duration);
const start = parseFloat($chapter.dataset.start);
const end = parseFloat($chapter.dataset.end);
@@ -191,27 +194,29 @@ function artplayerPluginChapter({ chapters = [] }) {
if (currentTime >= start && currentTime <= end) {
const percentage = (currentTime - start) / duration;
setStyle($target, "width", `${percentage * 100}%`);
if (isMobile) {
if (type === "played" && event) {
showTitle({
$chapter,
width
});
setStyle($title, "display", "flex");
clearTimeout(titleTimer);
titleTimer = setTimeout(()=>{
setStyle($title, "display", "none");
}, 1000);
}
} else if (type === "hover") showTitle({
$chapter,
width
});
}
}
});
function showTitle(event) {
const $target = event.target.closest(".art-chapter");
if ($target) {
setStyle($title, "display", "flex");
$title.innerText = $target.dataset.title || "";
const { left } = $inner.getBoundingClientRect();
const eventLeft = event.clientX;
const width = clamp(eventLeft - left, 0, $inner.clientWidth);
const titleWidth = $title.clientWidth;
if (width <= titleWidth / 2) setStyle($title, "left", 0);
else if (width > $inner.clientWidth - titleWidth / 2) setStyle($title, "left", `${$inner.clientWidth - titleWidth}px`);
else setStyle($title, "left", `${width - titleWidth / 2}px`);
} else setStyle($title, "display", "none");
}
if (!isMobile) {
art.proxy($progress, "mousemove", (event)=>{
art.proxy($progress, "mousemove", ()=>{
if (!$chapters.length) return;
showTitle(event);
setStyle($title, "display", "flex");
});
art.proxy($progress, "mouseleave", ()=>{
if (!$chapters.length) return;