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142 lines
5.4 KiB
142 lines
5.4 KiB
--========================================================--
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-- Scorpio UI Reactive --
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-- --
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-- Author : kurapica125@outlook.com --
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-- Create Date : 2020/12/22 --
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--========================================================--
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--========================================================--
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Scorpio "Scorpio.UI.Reactive" "1.0.0"
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--========================================================--
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import "System.Reactive"
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local isUIObject = UI.IsUIObject
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local isObjectType = Class.IsObjectType
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local isProperty = System.Property.Validate
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local isIndexerProperty = System.Property.IsIndexer
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local getCurrentTarget = Scorpio.UI.Style.GetCurrentTarget
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local getFeature = Class.GetFeature
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__Static__() __Arguments__{ NEString * 1 }
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function Wow.FromUIProperty(...)
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local name = select("#", ...) == 1 and name or { ... }
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return Observable(function(observer)
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local indicator = getCurrentTarget()
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if indicator and isUIObject(indicator) then
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local frame = indicator
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local subject
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if type(name) == "string" then
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while frame do
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subject = Observable.From(frame, name)
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if subject then break end
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frame = frame:GetParent()
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end
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else
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local nsubject
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for _, n in ipairs(name) do
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frame = indicator
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nsubject = nil
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while frame do
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nsubject= Observable.From(frame, n)
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if nsubject then break end
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frame = frame:GetParent()
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end
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if nsubject then
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subject = subject and subject:CombineLatest(nsubject) or nsubject
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else
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return
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end
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end
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end
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if subject then return subject:Subscribe(observer) end
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end
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end)
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end
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__Static__() __Arguments__{ NEString * 1 }
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function Wow.FromPanelProperty(...)
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local name = select("#", ...) == 1 and name or { ... }
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return Observable(function(observer)
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local indicator = getCurrentTarget()
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if indicator and isUIObject(indicator) then
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local frame = indicator
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local parent = indicator:GetParent()
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local index
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while parent do
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if isObjectType(parent, ElementPanel) then
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-- Only check the nearest element panel
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index = frame:GetID()
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break
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end
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frame = parent
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parent = parent:GetParent()
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end
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if index then
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if type(name) == "string" then
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local prop = getFeature(getmetatable(parent), name, true)
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local psub = prop and isIndexerProperty(prop) and Observable.From(parent, name)
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if not psub then return end
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local matchIdx = psub.__MatchIndex
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if not matchIdx then
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matchIdx = {}
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psub.__MatchIndex = matchIdx
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psub:Subscribe(function(idx, ...)
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local s = matchIdx[idx]
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return s and s:OnNext(...)
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end)
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end
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local idxSub = matchIdx[index]
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if not idxSub then
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idxSub = Subject()
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matchIdx[index] = idxSub
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end
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return idxSub:Subscribe(observer)
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else
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local subject
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for _, n in ipairs(name) do
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local prop = getFeature(getmetatable(parent), n, true)
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local psub = prop and isIndexerProperty(prop) and Observable.From(parent, n)
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if not psub then return end
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local matchIdx = psub.__MatchIndex
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if not matchIdx then
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matchIdx = {}
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psub.__MatchIndex = matchIdx
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psub:Subscribe(function(idx, ...)
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local s = matchIdx[idx]
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return s and s:OnNext(...)
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end)
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end
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local idxSub = matchIdx[index]
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if not idxSub then
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idxSub = Subject()
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matchIdx[index] = idxSub
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end
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subject = subject and subject:CombineLatest(idxSub) or idxSub
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end
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if subject then subject:Subscribe(observer) end
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end
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end
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end
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end)
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end
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