Signed-off-by: Christophe Mutricy <xtophe@videolan.org>

Widgets can still be hidden though

Lua dialogs are deleted when closed, they can't be hidden or shown.

Either you die at start or you don't. Stop making us loosing our time.

This is "shortdesc" in the Lua descriptor

This flushes the dialog (updates it at the UI level) after a Lua
function return.

After the next commit, you'll have to flush a dialog in order to
update it immediately on the screen.
Flush sends an update signal to the UI dialog provider.

PushCommand takes now a new parameter: b_unique. If set, do not push
this command twice in the command queue.

When the input changes (next track, ...), every capable extension
will execute the function "input_changed"

Forward messages to the extensions manager

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Also remove setting item here as preparsed, as if it has meta, that should
have been done allready somewhere else. Preparsing is controlled by
auto-preparse -variable (no idea where it can be changed), and should work ok.

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

input_item: compress two functions into one and rename "Add" into "Post" for clarity and consistency

input_item: Remove input_item_AddSubItem2 and send subitem_added event from input_item_node_AppendNode().

This means that we don't need input_item_AddSubItem if there is an input_item_node_Append*().
input_item_AddSubItem now send the subitem_tree_added event as well.