JavaScript 调用“setTimeout”在 Oracle Apex 中不起作用
我正在尝试从 Oracle ApeX 中的 Stack Overflow 中的该线程运行此代码，看起来 setTimeout 调用未按预期工作：
[see thread][1]
<html lang="en">
<head>
<title>Dashboard Example</title>
<style type="text/css">
body, html { margin: 0; padding: 0; width: 100%; height: 100%; overflow: hidden; }
iframe { border: none; }
</style>
<script type="text/javascript">
var Dash = {
nextIndex: 0,
dashboards: [
{url: "http://www.google.com", time: 5},
{url: "http://www.yahoo.com", time: 10},
{url: "http://www.stackoverflow.com", time: 15}
],
display: function()
{
var dashboard = Dash.dashboards[Dash.nextIndex];
frames["displayArea"].location.href = dashboard.url;
Dash.nextIndex = (Dash.nextIndex + 1) % Dash.dashboards.length;
setTimeout(Dash.display, dashboard.time * 1000);
}
};
window.onload = Dash.display;
</script>
</head>
<body>
<iframe name="displayArea" width="100%" height="100%"></iframe>
</body>
</html>
How can I get this call to work in Oracle ApEx v3.0.1？
I am trying to run this code from this thread in Stack Overflow in Oracle ApeX and it looks as if the setTimeout call is not working as suppose to:
[see thread][1]
<html lang="en">
<head>
<title>Dashboard Example</title>
<style type="text/css">
body, html { margin: 0; padding: 0; width: 100%; height: 100%; overflow: hidden; }
iframe { border: none; }
</style>
<script type="text/javascript">
var Dash = {
nextIndex: 0,
dashboards: [
{url: "http://www.google.com", time: 5},
{url: "http://www.yahoo.com", time: 10},
{url: "http://www.stackoverflow.com", time: 15}
],
display: function()
{
var dashboard = Dash.dashboards[Dash.nextIndex];
frames["displayArea"].location.href = dashboard.url;
Dash.nextIndex = (Dash.nextIndex + 1) % Dash.dashboards.length;
setTimeout(Dash.display, dashboard.time * 1000);
}
};
window.onload = Dash.display;
</script>
</head>
<body>
<iframe name="displayArea" width="100%" height="100%"></iframe>
</body>
</html>
How can I get this call to work in Oracle ApEx v3.0.1?
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这个问题与 Apex 无关 - 事实上，您可以获取您发布的 HTML，将其保存到文件中，然后在浏览器中运行该文件来测试它。
不幸的是，www.google.com 是一个无法使用此代码的 URL，因为它包含一些自己的“framebusting”Javascript，会将其从框架中弹出到浏览器窗口中，之后您的代码将不再运行。 stackoverflow.com 也做了类似的事情。
例如，如果您将第一个 URL 更改为 www.bbc.com，那么它会起作用（无论如何在 IE 上），直到它到达 stakoverflow.com，此时它会弹出框架。
This problem is nothing to do with Apex - in fact you can take the HTML you posted, save it to a file, and run that file in a browser to test it.
Unfortunately, www.google.com is a URL that will not work with this code, because it contains some "framebusting" Javascript of its own that pops it out of the frame into the browser window, after which your code is no longer running. stackoverflow.com does something similar.
If you change the first URL to www.bbc.com for example then it works (on IE anyway) until it gets to stakoverflow.com, when it pops out of the frame.