问题
I'm looking for a way to use multiple themes in one XPages application, each theme active in a different section of the application. For instance to support an single .nsf application with both a public facing website (custom theme) and a CMS with a OneUI theme.
You can set which theme is used through the whole application on the XPage Properties tab in Application Properties. It's also possible to change the theme for a user's session with this code:
context.setSessionProperty("xsp.theme", <theme_id>)
But both options set the theme for all pages in the current .nsf, and I'm looking for a way to specify theme X for one part of the application and theme Y for a second part.
Is this possible?
回答1:
On any page that should use an alternate theme, use the following syntax to apply the property directly to the view root:
<xp:view>
<xp:this.properties>
<xp:parameter name="xsp.theme" value="alternateThemeName" />
</xp:this.properties>
</xp:view>
回答2:
I tried all of the above, but none of them worked for me. But I found a solution:
Paste this into the view's beforeRenderResponse event:
context.setSessionProperty("xsp.theme", "yourAlternateThemeName")
There is one issue: once you have used this way you have to use it always and on every page as this sets a session property which is stored as long as you are logged in.
回答3:
Just talked with colleague Tony Mcguckin.
You can change the theme per page. Under all properties of the XPage select data-properties and create a new property with name "xsp.theme" and value "yourThemeName".
回答4:
While I like the idea of having page-specific themes, based on the specific use case you're describing, the "right" way to do this is to have two separate XPage applications bound to the same back end data store. Not only does this make it simple to specify a different theme for each, it also simplifies the ACL (assuming you'll have different people accessing the public site vs. the CMS), makes it easier to tune performance by having different settings per application, and even without having application-specific settings, should improve performance slightly just because of Java class loader behavior: each NSF acts as a distinct ClassLoader, and each XPage or Custom Control in your NSF results in the storage of a separate class file. So, in theory, if the features of your public site require you to create 5 XPages and the CMS features span 10 XPages, simply splitting these into two separate apps makes it easier for the class loader to retrieve the class for any page a user loads, because it doesn't have to ignore the classes it will never need for that user just to find the one class it does need at the time. So I'm still tempted to find a way to get page-specific themes working just for the "cool" factor of it, but for this specific purpose, I'd recommend using two different applications entirely, with a different theme assigned to each.
回答5:
I dont know that much about themes but cant you check in your theme (with some ssjs) at which viewroot ( by id? ) you are and according to that include the correct styles , css and other resources?
来源：https://stackoverflow.com/questions/9367722/how-to-use-multiple-themes-at-the-same-time