使用WebKit可以在清晰的背景上呈现网页内容吗？(Is it possible to render web content over a clear background using WebKit?)

 我试图衡量WebKit的修补程序的可能性，该修补程序可以将所有渲染的图形渲染到完全透明的背景上。 
 
 期望的效果是呈现完全没有任何背景的网页内容，它应该看起来漂浮在桌面上（或者显示在浏览器窗口后面的任何内容）。 
 
 有没有人看过一个应用程序这样做？ （我可以想到一些终端仿真器可以。）如果任何人在WebKit（或可能是Gecko？）内部工作，你认为有可能这样做吗？ 
 
 
 更新：我意识到Mac OSX仪表板小部件使用这种确切的技术。 所以，这一定是可能的。 
 
 
 更新2：我已经编译了Linux上的WebKit，并注意到配置选项包括： 
 
--enable-dashboard-support
enable Dashboard support default=yes
 
 我越来越近了。 谁能帮忙？ 
 
 
 更新3：我继续在各种相关邮件列表上的帖子中找到对此的引用。 
 
 
 
 https://lists.webkit.org/pipermail/webkit-dev/2008-September/005019.html 
 
 
 https://lists.webkit.org/pipermail/webkit-dev/2009-June/008182.html 
 

I'm trying to gauge the possibility of a patch to WebKit which would allow all rendered graphics to be rendered onto a fully transparent background.
 
The desired effect is to render web content without any background at all, it should appear to float over the desktop (or whatever is displayed behind the browser window).
 
Has anyone seen an app do this? (I can think of some terminal emulators that can.) If anyone has worked inside of WebKit (or possibly Gecko?) do you think it would be possible to do this?
 
 
Update: I've come to realize that Mac OSX dashboard widgets use this exact technique. So, this must be possible.
 
 
Update 2: I've compiled WebKit on linux and noticed the configure options include:
 
--enable-dashboard-support
enable Dashboard support default=yes
 
I'm getting closer. Can anyone help?
 
 
Update 3: I continue to find references to this in posts on various related mailing lists.
 
 
 
https://lists.webkit.org/pipermail/webkit-dev/2008-September/005019.html
 
 
https://lists.webkit.org/pipermail/webkit-dev/2009-June/008182.html
 

原文：https://stackoverflow.com/questions/324923