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https://github.com/the1812/Bilibili-Evolved.git
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Merge remote-tracking branch 'origin/airborne' into preview
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commit
ee76afa398
@ -8,15 +8,65 @@ function isAirbornable(danmaku)
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return danmaku.innerText.search(/\d{1,}[::]\d{2}/) !== -1 && danmaku.childElementCount === 0; // 无子元素表明没有被检测并加过下划线,防止重复调用陷入死循环
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}
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function doAirborne(danmaku)
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function getArea(element)
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{
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var eleLeft = element.offsetLeft;
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var eleTop = element.offsetTop;
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var offParent = element.offsetParent;
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while (offParent !== null)
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{
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eleLeft += offParent.offsetLeft;
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eleTop += (offParent.offsetTop + offParent.clientTop);
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offParent = offParent.offsetParent;
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}
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styleTransform = element.style.transform;
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translateXReg = styleTransform.match(/translateX\(-?[0-9]{1,}([.][0-9]{1,})?px\)/);
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if (translateXReg !== null)
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{
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eleLeft += parseFloat(translateXReg[0].match(/-?[0-9]{1,}([.][0-9]{1,})?/)[0]);
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}
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return {left: eleLeft,
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right: eleLeft + element.offsetWidth,
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top: eleTop,
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bottom: eleTop + element.offsetHeight};
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}
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function danmakuContainerCallback()
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{
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// 当用户点击到视频内部时检查是否点击空降弹幕而非在检测到空降弹幕时就监听弹幕的点击从而改善性能(不然有可能点击时调用一堆函数)
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// 获取鼠标位置
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const mousePosition = document.querySelector(".bilibili-player-video-danmaku").mousePosition;
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// 依次检测鼠标是否在弹幕区域内以及是否为空降弹幕
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document.querySelector('.bilibili-player-video-danmaku').children.forEach((danmaku) => {
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if (typeof(danmaku.airborneDestination) === 'undefined')
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{
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// 不是空降弹幕,continue
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return true;
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}
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const danmakuArea = getArea(danmaku);
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if (danmakuArea.left <= mousePosition[0] &&
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mousePosition[0] <= danmakuArea.right &&
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danmakuArea.top <= mousePosition[1] &&
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mousePosition[1] <= danmakuArea.bottom)
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{
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document.querySelector('.bilibili-player-video video').currentTime = danmaku.airborneDestination;
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document.querySelector('.bilibili-player-video video').play();
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}
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});
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}
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function markAirborne(danmaku)
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{
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if (settings.airborne)
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{
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airborneDestination = danmaku.innerText.match(/\d{1,}[::]\d{2}/)[0];
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sep = airborneDestination.includes(':') ? ':' : ':';
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airborneDestination = parseInt(airborneDestination.split(sep)[0]) * 60 + parseInt(airborneDestination.split(sep)[1]);
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if (0 <= airborneDestination <= document.querySelector('.bilibili-player-video video').duration)
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if (0 <= airborneDestination && airborneDestination <= document.querySelector('.bilibili-player-video video').duration)
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{
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danmaku.airborneDestination =airborneDestination;
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const originalWidth = danmaku.offsetWidth;
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danmaku.innerHTML = '<u>' + danmaku.innerText + '🚁</u>';
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// 弹幕离开视频后并不一定会删除该元素,如果不向左移有可能会导致画面最左边弹幕离开的地方有一个 🚁 一直在那里
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@ -25,32 +75,6 @@ function doAirborne(danmaku)
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danmaku.style.marginLeft = '-' + (danmaku.offsetWidth - originalWidth).toString() + 'px';
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}
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}
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function clickHandler(event)
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{
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// 计算弹幕区域
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var left = danmaku.offsetLeft;
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var top = danmaku.offsetTop;
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var offParent = danmaku.offsetParent;
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while (offParent !== null)
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{
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left += offParent.offsetLeft;
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top += (offParent.offsetTop + offParent.clientTop);
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offParent = offParent.offsetParent;
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}
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const right = left + danmaku.offsetWidth;
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const bottom = top + danmaku.offsetHeight;
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if (left <= event.clientX &&
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event.clientX <= right &&
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top <= event.clientY &&
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event.clientY <= bottom &&
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danmaku.offsetWidth !== 0)
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{
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document.querySelector('.bilibili-player-video video').currentTime = airborneDestination;
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document.querySelector('.bilibili-player-video video').play();
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}
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}
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document.querySelector('.bilibili-player-video-wrap').addEventListener('click', clickHandler);
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document.querySelector('.bilibili-player-video video').addEventListener('click', clickHandler);
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}
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}
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@ -58,19 +82,31 @@ function doAirborne(danmaku)
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{
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SpinQuery.select(() => document.querySelector(".bilibili-player-video-danmaku"))
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.then(() => {
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// 当点击到 warp 时可以正常获取鼠标位置,但是点击到视频元素时获取到的鼠标位置是(0,0),这里只好初始化时就一直记录鼠标位置,暂时没想到更好的办法(菜……)
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document.querySelector(".bilibili-player-video-danmaku").mousePosition = [0, 0];
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document.addEventListener ('mousemove', (e) => {document.querySelector(".bilibili-player-video-danmaku").mousePosition = [e.clientX, e.clientY]}, false);
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// 当视频或 warp 被点击时检测是否点击空降弹幕
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// setTimeout 原因:B站滚动字幕是通过 transform 实现的,如果当点击时立即调用计算弹幕区域就得出的就是弹幕移出视频范围的位置而非当前的位置
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// 延后5ms让B站的代码把 translateX 的值改到弹幕当前的位置,虽然说1ms应该完全够了,而且我测试的时候1ms在av78426409里没问题
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// 不过万一遇到老掉牙的电脑跑得慢就有可能出问题,这里就改成5ms了,但是用户应该也不会察觉到(什么神仙有那反应速度…)
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document.querySelector('.bilibili-player-video-wrap').addEventListener('click', ()=>{setTimeout(() => {danmakuContainerCallback();}, 5);});
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// 监听每一个弹幕并检测是否为空降弹幕
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Observer.childList('.bilibili-player-video-danmaku', (records) => {
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records.forEach((record) => {
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record.addedNodes.forEach((addedNode) => {
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if (isAirbornable(addedNode))
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{
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doAirborne(addedNode);
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markAirborne(addedNode);
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}
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// 有可能会出现当前元素在视频里面走完了一次之后不删除更改内容再出现在视频里面的情况,这里保证所有弹幕都能被监听到
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Observer.childList(addedNode, (records) => {
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records.forEach((record) => {
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if (isAirbornable(record.target))
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{
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doAirborne(record.target);
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markAirborne(record.target);
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}
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})
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})
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@ -78,4 +114,4 @@ function doAirborne(danmaku)
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})
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});
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})
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})()
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})()
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