使用JavaScript创建Powerpoint [英] Create Powerpoint with JavaScript

问题描述

JavaScript无法在客户端文件系统上本地创建文件。但是，我想知道，如果有可能以某种方式在某个JSON的网页（div或iframe）中创建一个Powerpoint MIME，然后让UserAgent弄清楚它是Powerpoint，期望UserAgent将为用户提供选择将其显示为powerpoint演示文稿？

JavaScript cannot create files locally on the clients filesystem. However, I am wondering, if it is possible to somehow create a Powerpoint MIME in a web page (a div or a iframe) from some JSON and then let the UserAgent figure out it is Powerpoint in the expectation that the UserAgent will offer the user the choice to display it as a powerpoint presentation?

注意：这里的想法是能够获取一些JSON并进行powerpoint演示，而无需向服务器发出创建Powerpoint文件的请求。

Note: The idea here is to be able to take some JSON and make a powerpoint presentation without having to make a request to a Server to create a Powerpoint file.

推荐答案

可以生成Powerpoint二进制文件的一个JavaScript库是 PptxGenJS 。

One JavaScript library that can generate Powerpoint binary files is PptxGenJS.

从一般来说，您可以使用具有Powerpoint MIME类型的数据URL创建链接：

Genreally speaking, you can create a link with a data URL that has a Powerpoint MIME type:

 data:ms-powerpoint;base64,aGVsbG8gd... // base64-encoded file

运行您的逻辑以创建二进制Powerpoint文件，然后对其进行base64编码（例如，使用 btoa ），然后动态生成链接或将 window.location 重定向到数据URI。

Run your logic to create a binary Powerpoint file, then base64-encode it (e.g. with btoa), and then dynamically generate a link or redirect window.location to the data URI.

var binaryPPFile = createPowerpointFromJSON(sourceJSON);
window.location = "data:ms-powerpoint;base64," + btoa(binaryPPFile);

我的假设 createPowerpointFromJSON 函数可能会调用PptxGenJS API或任何其他生成Powerpoint的API。

My hypothetical createPowerpointFromJSON function might make calls to the PptxGenJS API, or any other Powerpoint-generating API.

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