我有一个简单的表单，用户可以输入名称并提交。当用户输入用户名时，在 iframe 中自动播放视频。当用户点击提交时，我希望打开一个新页面，其中包含一个视频，当用户点击提交时，视频应该自动播放。
目前为止，我已经完成以下工作：
表单页面 HTML。
<!DOCTYPE html>
<html>
<head>
<title>Wideo iframe</title>
<!-- Website Font style -->
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO"
crossorigin="anonymous">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.6.1/css/font-awesome.min.css">
<!-- Google Fonts -->
<link href='https://fonts.googleapis.com/css?family=Passion+One' rel='stylesheet' type='text/css'>
<link href='https://fonts.googleapis.com/css?family=Oxygen' rel='stylesheet' type='text/css'>
<link rel="stylesheet" href="./css/style.css">
<link rel="stylesheet" href="./css/form.css">
</head>
<body>
<iframe id="videoframe" src="videoframe.html"></iframe>
<br />
<div class="container">
<div class="row main">
<div class="main-login main-center">
<h5>WYP: Formularz.</h5>
<form id="formData" name="contact" role="form" method="post" action="thankspage.html" target="_blank">
<div class="form-group">
<label for="name" class="cols-sm-2 control-label">Imie</label>
<div class="cols-sm-10">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-user fa" aria-hidden="true"></i></span>
<input type="text" class="form-control" name="name" id="name" placeholder="Enter your Name" />
</div>
</div>
</div>
<input type="submit" id="button" value="submit" class="btn btn-primary btn-lg">
</form>
</div>
</div>
</div>
</body>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js" integrity="sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy"
crossorigin="anonymous"></script>
<script src="js/form.js" type="text/javascript"></script>
</html>
这里是form.js。
//form script
$(document).ready(function () {
$(window).resize(resizeIframe);
$(window).resize();
//play a video when user enter aa name
$("input#name").on("change", function () {
document.getElementById('videoframe').contentWindow.postMessage( "event=fieldchanged&fieldtype=" + "name" + "&value=" + $("input#name").val(), "*");
});
// play a video when a user clicks submit button this is not working !!!!!!!
$("#button").on("click", function(){
document.getElementById('videoframe').contentWindow.postMessage(
JSON.stringify({
event: 'submitSlide()'
}), "*")
})
});
function resizeIframe() {
console.log($("iframe#videoframe").width()*576/1024 );
$("iframe#videoframe").height( $("iframe#videoframe").width()*576/1024 );
}
这里是videogframe.js。
var autoplay = true;
var movieName1 = "./videos/videoplayback.mp4"
var movieThanks = "./videos/darasa.mp4"
function resizeFunction() {
$("#videowrapper").height($("#videowrapper").width() * 576 / 1024);
}
window.addEventListener("message", receiveMessage, false);
function receiveMessage(eventPosted) {
var values = eventPosted.data.split("&");
var event = values[0].split("=")[1];
var fieldtype = values[1].split("=")[1];
var value = values[2].split("=")[1];
console.log(event, fieldtype, value);
switch (event) {
case "fieldchanged":
switch (fieldtype) {
case "name":
openSlide("nameSlide", {
value: value
});
case "submit":
openSlide("submitSlide", {
value: value,
});
break;
default:
break;
}
break;
default:
console.log("Event not supported");
break;
}
}
function openSlide(slideName, params) {
switch (slideName) {
case "nameSlide":
openName(params);
break;
case "submitSlide":
openSubmit(params);
break;
}
}
var params = null;
function openName(_params) {
playVideo(movieName1);
}
function openSubmit(_params){
playVideo(movieThanks);
}
// function top play video
function playVideo(src) {
$("#playervideo").attr("src", src);
$("#playervideo")[0].muted = false;
if (autoplay == true) {
var playPromise = $("#playervideo")[0].play();
if (playPromise !== undefined) {
playPromise.then(function () {}).catch(function () {
if (autoplay == true) {
$("#video-unmute-button").addClass("show");
$("#playervideo")[0].muted = true;
var playPromise2 = $("#playervideo")[0].play();
playPromise2.then(function () {
}).catch(function () {
$("#video-start-button").addClass("show");
$("#video-start-button").on("click", function () {
$("#playervideo")[0].muted = false;
$("#playervideo")[0].play();
$("#video-start-button").removeClass("show");
});
});
console.log("pause force");
} else {
}
});
} else {}
} else {
}
}
这里是视频帧的HTML页面。
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Wideo iframe</title>
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
<link rel="stylesheet" href="css/style.css">
</head>
<body>
<div id="videowrapper">
<video id="playervideo" controls></video>
<canvas id="videocanvas" width="1024" height="576"></canvas>
<div id="testform"><input type="text"/></div>
</div>
</body>
<script src="jslibs/howler.min.js"></script>
<script src="https://code.createjs.com/1.0.0/createjs.min.js"></script>
<script src="js/videoframe.js" type="text/javascript"></script>
</html>
我正在使用post message进行通信。
除了当我点击提交时，它只是打开一个新页面而不播放视频之外，一切都按预期工作。
更新：如果有人不明白我的意思，请往下看
这是我想做的repo：Video frame
只需克隆repo并运行名为formpage.html的页面，开始填写表单，您将自动播放视频，但是当您单击提交按钮时，它只会打开页面，但视频不会播放：请自己测试
更新：为了更具体，我想像这样添加事件监听器来使用post message。
// play a video after the user click submit button
$("input#button").on("click", function () {
document.getElementById('videoframe').contentWindow.postMessage( "event=fieldchanged&fieldtype=" + "submit" + "&value=" + $("input#button").val(), "*");
});
为什么我的视频无法播放？我做错了什么吗？谢谢。