blackteay/tampermonkey-script
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下载按钮禁止重复点击

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BlackTeay 2023-03-28 15:48:48 +08:00
parent 79d3f38552
commit 5a8fcf8b57
1 changed files with 17 additions and 15 deletions
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20
libiary/Download_CCTV_Video.js
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@ -28,7 +28,7 @@
*/ */
function appendDownloadEle(videoJQ, title, videoSrc) { function appendDownloadEle(videoJQ, title, videoSrc) {
let downloadIdAttrName = videoJQ.attr("id") + "_download"; let downloadIdAttrName = videoJQ.attr("id") + "_download";
var downloading=false var downloading = false
console.log(downloadIdAttrName) console.log(downloadIdAttrName)
if ($("#" + downloadIdAttrName).length <= 0) { if ($("#" + downloadIdAttrName).length <= 0) {
// 【下载】按钮 // 【下载】按钮
@ -55,11 +55,11 @@
downloadJQ.on("click", function (event) { downloadJQ.on("click", function (event) {
// console.log("下载视频：" + $(this).attr("id") + ", href=" + $(this).attr("href")); // console.log("下载视频：" + $(this).attr("id") + ", href=" + $(this).attr("href"));
if(downloading==true){ if (downloading == true) {
console.log("视频下载中，请勿再次点击") console.log("视频下载中，请勿再次点击")
return false; return false;
}else{ } else {
downloading=true downloading = true
} }
// 阻止 a 标签默认行为 // 阻止 a 标签默认行为
event.preventDefault(); event.preventDefault();
@ -72,18 +72,19 @@
xhr.open('GET', downloadUrl, true); xhr.open('GET', downloadUrl, true);
xhr.responseType = 'blob'; xhr.responseType = 'blob';
xhr.onreadystatechange = function(){ xhr.onreadystatechange = function () {
console.log("READYSTATE"+ xhr.readyState); console.log("READYSTATE" + xhr.readyState);
if(this.status == 200 && this.readyState == 4){ if (this.status == 200 && this.readyState == 4) {
const downloadLink = document.createElement('a'); const downloadLink = document.createElement('a');
downloadLink.href = window.URL.createObjectURL(new Blob([xhr.response])); downloadLink.href = window.URL.createObjectURL(new Blob([xhr.response]));
downloadLink.download = title + '.mp4'; downloadLink.download = title + '.mp4';
document.body.appendChild(downloadLink); document.body.appendChild(downloadLink);
downloadLink.click(); downloadLink.click();
downloadLink.remove(); downloadLink.remove();
downloading=false; downloading = false;
}else if(this.status == 404){ } else if (this.status == 404) {
console.log("视频不存在"); console.log("视频不存在");
downloading = false;
} }
} }
@ -97,6 +98,7 @@
} }
xhr.onerror = () => { xhr.onerror = () => {
console.error('网络或服务器错误'); console.error('网络或服务器错误');
downloading = false;
} }
xhr.send(); xhr.send();