GitLab

Show a loading message while the javascript init is being run. Fix a but where I broke dropping new block types

made a smarty_core function that is very lightweight, changed the main smarty() function to use it. this means we can use lightweight smarty_core for small html snippets (eg blocks)

Moved some rules around for this - namely, the 'cursor: move' rules for dragging stuff.

Make sure that the blocktypes are draggable when you switch tabs.

There's an obscure bug still remaining where sometimes the blocktype isn't added where it should go. Firefox is not respecting the z-index of the dragged elements also.

There's a couple of small things left to go:

 * Need to have a zone outside of which when the blocktype is dropped, the action is canceled
 * When switching tabs, the blocktypes on the new tab should be made draggable

When handling a request for a new blocktype, return the rendered blocktype if we are doing the request via AJAX, so it can be inserted immediately.

Moved the rendering of the block instance container to BlockInstance::render to facilitate this change.

Added a language string for confirming deleting a blockinstance. Also changed other language strings to refer to them as 'blocks', users probably would get confused by the 'instance' part.

Now the user is asked for confirmation before a blockinstance is deleted. To be implemented in the static version later.

Also, removed a bunch of redundant error cases.

The performance fixes largely centre around not responding to _every_ mouse event.

The ajax request is accompanied by some code to find out where the block is being moved to.

more tidyups - view_process_changes now detects defined(JSON) rather than accepting $ajax as a parameter, added some more documentation

made the removeblocktype view function called blockinstance->delete rather than access the database itself