Hi I'm trying to improve on the layout we are using across several tapestry based products. Initially it used an abstract base layout component that the products extend to provide a common line for the layout.
I'm trying to simplify this situation by making the layout in the framework module a concrete component (lets call it pagelayout), that wrap its t:body in <html> etc. Each product creates its own layout (called layout) component that provides the specific menu, topbar etc. and then wraps itself in the layout from the framework module. Ordinary pages has t:type=layout in their root element to wrap themselves in the product layout component, which in turn has t:type=pagelayout on its root element to wrap itself in the framework layout providing the surrounding html tag. According to the documentation ( https://tapestry.apache.org/layout-component.html#LayoutComponent-NestedLayouts) this should not be an issue. However when I try to render one of these pages tapestry complains with: Caused by: java.lang.RuntimeException: The root element of the rendered document was <div>, not <html>. A root element of <html> is needed when linking JavaScript and stylesheet resources. at org.apache.tapestry5.internal.services.DocumentLinkerImpl.addScriptElements(DocumentLinkerImpl.java:179) at org.apache.tapestry5.internal.services.DocumentLinkerImpl.updateDocument(DocumentLinkerImpl.java:140) at org.apache.tapestry5.modules.TapestryModule$25.renderMarkup(TapestryModule.java:1752) at $MarkupRenderer_1760ef286199e.renderMarkup(Unknown Source) at com.dezide.author.tapestry.DeferredDialogFilter.renderMarkup(DeferredDialogFilter.java:21) at $MarkupRendererFilter_1760ef286199c.renderMarkup(Unknown Source) at $MarkupRenderer_1760ef286199e.renderMarkup(Unknown Source) at $MarkupRenderer_1760ef2861999.renderMarkup(Unknown Source) at org.apache.tapestry5.internal.services.PageMarkupRendererImpl.renderPageMarkup(PageMarkupRendererImpl.java:47) at $PageMarkupRenderer_1760ef2861997.renderPageMarkup(Unknown Source) at org.apache.tapestry5.internal.services.PageResponseRendererImpl.renderPageResponse(PageResponseRendererImpl.java:64) at $PageResponseRenderer_1760ef28618e2.renderPageResponse(Unknown Source) at org.apache.tapestry5.internal.services.PageRenderRequestHandlerImpl.handle(PageRenderRequestHandlerImpl.java:72) at org.apache.tapestry5.modules.TapestryModule$34.handle(TapestryModule.java:1974) at $PageRenderRequestHandler_1760ef28618e4.handle(Unknown Source) at $PageRenderRequestHandler_1760ef28618d3.handle(Unknown Source) at org.apache.tapestry5.internal.services.ComponentRequestHandlerTerminator.handlePageRender(ComponentRequestHandlerTerminator.java:48) at org.apache.tapestry5.internal.services.DeferredResponseRenderer.handlePageRender(DeferredResponseRenderer.java:52) at $ComponentRequestHandler_1760ef28618d4.handlePageRender(Unknown Source) at org.apache.tapestry5.services.InitializeActivePageName.handlePageRender(InitializeActivePageName.java:47) at $ComponentRequestHandler_1760ef28618d4.handlePageRender(Unknown Source) at org.apache.tapestry5.internal.services.RequestOperationTracker$2.run(RequestOperationTracker.java:73) at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.run(OperationTrackerImpl.java:56) ... 151 more The document linker root is the output of rendering the specific page (it may have wrapped the Layout around it, but it is hard to tell as that one only provides shared configuration of the pagelayout. Has anyone successfully used nested layouts like this? The documentation seems to suggest it should work, but I've tried a lot of different constructs without success. -- Best regards Chris
