如何使 iFrame 在单击按钮时全屏显示?

问题描述

我想让 iFrame 使用 JavaScript 单击按钮以全屏显示.

I would to make the iFrame to appear on fullscreen with a button click using JavaScript.

<iframe id="iframe_view" class="embed-responsive-item container well well-small span6" style="height: 720px; width: 1280px; background-color: #2e2e2e;" src="https://www.google.com/" frameborder="0" scrolling="no" allowfullscreen>

推荐答案

你必须做两件事:让窗口全屏，然后 <iframe> 填满整个大小.

You will have to do two things: make the window fullscreen, and then the <iframe> to fill up the whole size.

您可以使用 JS 使其全屏显示，例如 this SO answer.

You can make it go fullscreen with JS such as in this SO answer.

然后，要使其全尺寸，只需添加一些样式，如下所示.这个 JS 脚本所做的是将具有这些样式的类添加到 <iframe>.

Then, to make it full size, just add a few styles, like below. What this JS script does is add a class with those styles to the <iframe>.

JS

document.getElementsByTagName("iframe")[0].className = "fullScreen";

CSS

body, html {
    height: 100%;
    margin: 0;
}
.fullScreen {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
}

请参阅 JSFiddle 上的这个部分工作*示例.

See this partially working* example on JSFiddle.

_{*部分工作，因为 JSFiddle 不允许全屏方法，因为它认为它不安全.但它应该适合你.}

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