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openmw/files/data/openmw_aux/ui.lua

80 lines
2.2 KiB
Lua

local ui = require('openmw.ui')
---
-- `openmw_aux.ui` defines utility functions for UI.
-- Implementation can be found in `resources/vfs/openmw_aux/ui.lua`.
-- @module ui
-- @usage local auxUi = require('openmw_aux.ui')
local aux_ui = {}
local function deepContentCopy(content)
local result = ui.content{}
for _, v in ipairs(content) do
result:add(aux_ui.deepLayoutCopy(v))
end
return result
end
---
-- @function [parent=#ui] deepLayoutCopy
-- @param #table layout
-- @return #table copied layout
function aux_ui.deepLayoutCopy(layout)
local result = {}
for k, v in pairs(layout) do
if k == 'content' then
result[k] = deepContentCopy(v)
elseif type(v) == 'table' and getmetatable(v) == nil then
result[k] = aux_ui.deepLayoutCopy(v)
else
result[k] = v
end
end
return result
end
local function isUiElement(v)
return v.__type and v.__type.name == 'LuaUi::Element'
end
local function deepElementCallback(layout, callback)
if not layout.content then return end
for i = 1, #layout.content do
local child = layout.content[i]
if isUiElement(child) then
callback(child)
deepElementCallback(child.layout, callback)
else
deepElementCallback(child, callback)
end
end
end
---
-- Recursively updates all elements in the passed layout or element
-- @function [parent=#ui] deepUpdate
-- @param #any elementOrLayout @{openmw.ui#Layout} or @{openmw.ui#Element}
function aux_ui.deepUpdate(elementOrLayout)
local layout = elementOrLayout
if elementOrLayout.update then
elementOrLayout:update()
layout = elementOrLayout.layout
end
deepElementCallback(layout, function (e) e:update() end)
end
---
-- Recursively destroys all elements in the passed layout or element
-- @function [parent=#ui] deepDestroy
-- @param #any elementOrLayout @{openmw.ui#Layout} or @{openmw.ui#Element}
function aux_ui.deepDestroy(elementOrLayout)
local layout = elementOrLayout
if elementOrLayout.destroy then
elementOrLayout:destroy()
layout = elementOrLayout.layout
end
deepElementCallback(layout, function (e) e:destroy() end)
end
return aux_ui