close presentFloatingDialog

Forum|Forum|7 years ago
October 22, 2018
3 replies
858 views

LrDialogs.presentFloatingDialog(_PLUGIN, {

title = '享像派',

contents = content,

blockTask = true,

onShow = function()

end,

windowWillClose = function()

end

})

How to close presentFloatingDialog with onShow function

SDK

This topic has been closed for replies.

johnrellis

Genius

Here's what the API documentation says:

onShow: (Function, optional) If supplied, a function which will be called when the dialog first shows up on the screen. It will be passed a single argument; a table containing two entries, which are both functions that can be invoked to manipulate the dialog. The 'toFront' entry is the function to call to ensure that the dialog is the frontmost window immediately after the call. The 'close' entry is the function to call to programmatically close the dialog window.

So the definition of the "onShow" function would have this structure:

LrDialogs.presetFloatingDialog (_PLUGIN, {... 
    onShow = function (t)
        ...save t in a persistent object or global variable...
          end
    ...})

When the code wants to close the dialog, it calls t.close().

27shutterclicks

Inspiring

I am trying to figure out the onShow function also. Can you please elaborate on how to "save t in a persistent object or global variable"?

I tried :

onShow = function(t)
tofront = t
end

and:

onShow = function(t)

tofront = t["toFront"]

end

But none of these seem to be doing anything.

27shutterclicks

Inspiring

I figured it out once I got a better grasp of Lua global variables. Here is the fix, in case anyone else may be wondering.

First, create a global variable with a name of your choosing. In my case it was "floatingDialog". This can be placed anywhere before invoking the dialog.

_G["floatingDialog"] = {}

Then, when calling the floating dialog, save the parameter of the onShow function to that global variable:

LrDialogs.presentFloatingDialog(_PLUGIN,
    {
        title = "My Dialog Title",
        contents = contents,
        onShow = function(toFront)
            _G["floatingDialog"] = toFront
        end
    }
)