I was wondering whether there is a way to control what layers should be fetched as a single tile in a GeoExplorer composer application?
OpenLayers.Layer.WMS objects have a singleTile property but it does not appear defined for gxp.plugins.WMSSource for instance, so adding the property to a source or a layer in composer.html does not appear to do much.
If the line "var singleTile = false" in WMSSource.js is changed to true then every layer added via Add Layer are single tile, even if the source they belong to (defined in composer.html) is of ptype gxp_wmscsource and the WMS request is "tiled=true", perhaps because WMSCSource extends WMSSource.
If I understand correctly, T.Schaub indicated sources should have a singleTile property sometime in the future here: https://getsatisfaction.com/opengeo/topics/opengeo_suite1_9_2_community_edition_issues_geoexplorer_white_background
That would allow some control: all layers needing to be served a single tile could be put under one source. Right now things do not appear to work that way, however, so if there is wisdom for some sort of clarification out there I would be glad :)