我正在使用画布,我可以将我的画布保存为 png.
I am working with canvas and I would be able to save my Canvas to png.
环顾四周,我发现了 W3C 提供的很棒的 toDataURL() 函数.
By looking around, I discover the great toDataURL() function given by the W3C.
我也已经在使用我们可以在此页面上找到的 nihilogic 的 canvas2image:www.nihilogic.dk/labs/canvas2image/
I am also already using the canvas2image from nihilogic that we can found on this page : www.nihilogic.dk/labs/canvas2image/
我注意到在 canvas2image 上,开发人员使用图像/八位字节流"打开打开方式"对话框,但出现了一些问题:
I noticed that on canvas2image, the developpers use the "image/octet-stream" which open the "open with" dialog box but give some problem :
-图片名称是toDataUrl()返回的ascii.
-picture name is the ascii returned by toDataUrl().
-下载时文件扩展名为 .part
-file extension is .part when downloaded
简而言之,我会在单击按钮时提示打开方式"对话框,其中包含myImage.png"之类的内容.
In short, I would prompt the "open with" dialog box with something like "myImage.png" when clicking on a button.
有可能吗?任何帮助将不胜感激.
Is it possible ? Any help would be appreciated.
我有限制只使用 Javascript,我不能使用 一些不错的 PHP 技巧
Edit : I have the contraint to use only Javascript, I can't use some nice PHP trick
推荐答案如果您只针对现代浏览器并且不太关心跨浏览器,那么有一个可能的解决方案是使用元素的下载"属性.这是供您参考的一个示例:
if you aim to only modern browsers and don't care cross-browser that much, there's a possible solution with "download" attribute of element. Here's one sample for your information:
<a target="_blank" href="www.google/intl/en_com/images/srpr/logo3w.png" download="testXXX.jpg">DOWNLOAD ME!</a>只有一行,没有 javascript,是的!您可以将 href 部分更改为数据 url,也可以.
Only one line, no javascript, yeah! You can change the href part into data url, and that works too.
查看关于 html5rocks 的 Eric 的教程了解更多详情.
Check this Eric's tutorial on html5rocks for more details.
更多推荐
使用“打开方式"命名从 Canvas 保存的 PNG 文件对话
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