116 lines
2.4 KiB
Lua
116 lines
2.4 KiB
Lua
--- 模块功能：UI窗口管理
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-- @module uiWin
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-- @author openLuat
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-- @license MIT
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-- @copyright openLuat
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-- @release 2018.03.25
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module(...,package.seeall)
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--窗口管理栈
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local stack = {}
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--当前分配的窗口ID
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local winid = 0
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local function allocid()
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winid = winid + 1
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return winid
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end
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local function loseFocus()
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if stack[#stack] and stack[#stack]["onLoseFocus"] then
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stack[#stack]["onLoseFocus"]()
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end
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end
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--- 新增一个窗口
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-- @table wnd 窗口的元素以及消息处理函数表
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-- @return number，窗口ID
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-- @usage uiWin.add({onUpdate = refresh})
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function add(wnd)
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---必须注册更新接口
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assert(wnd.onUpdate)
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if type(wnd) ~= "table" then
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assert("unknown uiwin type "..type(wnd))
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end
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--上一个窗口执行失去焦点的处理函数
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loseFocus()
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--为新窗口分配窗口ID
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wnd.id = allocid()
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--新窗口请求入栈
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sys.publish("UIWND_ADD",wnd)
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return wnd.id
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end
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--- 移除一个窗口
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-- @number winId 窗口ID
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-- @return nil
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-- @usage uiWin.remove(winId)
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function remove(winId)
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sys.publish("UIWND_REMOVE",winId)
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end
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function removeAll()
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sys.publish("UIWND_REMOVEALL")
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end
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function update()
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sys.publish("UIWND_UPDATE")
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end
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local function onAdd(wnd)
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table.insert(stack,wnd)
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stack[#stack].onUpdate()
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end
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local function onRemove(winid)
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local istop,k,v
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for k,v in ipairs(stack) do
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if v.id == winid then
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istop = (k==#stack)
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table.remove(stack,k)
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if #stack~=0 and istop then
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stack[#stack].onUpdate()
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end
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return
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end
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end
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end
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local function onRemoveAll()
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local k,v
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for k,v in ipairs(stack) do
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table.remove(stack,k)
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end
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end
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local function onUpdate()
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if stack[#stack] and stack[#stack].onUpdate then
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stack[#stack].onUpdate()
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end
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end
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--key：自定义功能键
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--value：自定义功能键的状态
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local function onKey(key,value)
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if stack[#stack] and stack[#stack].onKey then
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stack[#stack].onKey(key,value)
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end
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end
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--- 判断一个窗口是否处于最前显示
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-- @number winId 窗口ID
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-- @return bool，true表示最前显示，其余表示非最前显示
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-- @usage uiWin.isActive(winId)
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function isActive(winId)
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if stack[#stack] and stack[#stack].id then
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return stack[#stack].id==winId
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end
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end
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sys.subscribe("UIWND_ADD",onAdd)
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sys.subscribe("UIWND_REMOVE",onRemove)
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sys.subscribe("UIWND_REMOVEALL",onRemoveAll)
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sys.subscribe("UIWND_UPDATE",onUpdate)
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sys.subscribe("UIWND_KEY",onKey)
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