码迷,mamicode.com
首页 > 其他好文 > 详细

使用xlue实现tips

时间:2014-08-15 17:44:34      阅读:385      评论:0      收藏:0      [点我收藏+]

标签:des   style   blog   http   color   使用   os   io   

经常遇到如下的需求

鼠标hover到目标对象一定时间后,弹出tips或者窗口;

鼠标离开目标对象一定时间后,隐藏tips或者窗口;

鼠标从目标对象移动到弹出的窗口上,这种状况下不隐藏窗口;

 

考虑到这种需求,绘制如下的状态图:

bubuko.com,布布扣

如上图所示,将tips的状态分为hide,showing,show,hiding,enter 五个状态;

hide: tips没有显示

showing: 准备显示tips

show: 显示tips

hiding: 准备隐藏tips

enter: 鼠标进入了tips控件,这种状况下仍然显示 tips

 

使用上面的状态图,清晰地描述了tips可能存在的各种状态,并确定了驱动事件有哪些。理清了思路。

hide状态时:hover到目标控件会进入 showing 状态;

showing 状态时:离开目标控件会返回到 hide 状态;

进入 showing 状态后,开启一个timer,当timer结束后,如果仍然是 showing 状态,则转到 show 状态并显示tips

show 状态时:离开目标控件会进入hiding状态;

hiding 状态时:hover到目标控件会返回到 show 状态;

进入 hiding 状态后,开启一个timer,当timer结束后,如果仍然是 hiding 状态,则转到 hide 状态并隐藏tips

鼠标从目标控件移动到tips上,会使得状态从 show 转到 hiding 转到 enter, 此时tips仍然显示,当离开tips控件后,状态又转移回 hiding ,此时开启一个timer,timer结束后,同样根据是否仍然是 hiding 状态来隐藏tips

 

编程实现:

function AddWindowTip(tippedObj, text, callback)

    local function showTipsFunc(tippedObj, x, y)
        -- 创建tips窗口
        local hostwndId = "TipsHelper.TipsHostWnd.Instance." .. tippedObj:GetID()
        local objtreeId = "TipsHelper.TipsTree.Instance." .. tippedObj:GetID()
        local hostwndTemplateId = "TipsWndTemplate"
        local objtreeTemplateId = "TipsTreeTemplate"

        local hostwndManager = XLGetObject("Xunlei.UIEngine.HostWndManager")
        local hostwnd = hostwndManager:GetHostWnd(hostwndId)
        if hostwnd then
            local objtree = hostwnd:GetBindUIObjectTree()
            if objtree then
                hostwnd:UnbindUIObjectTree()
                local objtreeManager = XLGetObject("Xunlei.UIEngine.TreeManager")
                objtreeManager:DestroyTree(objtree)
            end
            hostwndManager:RemoveHostWnd(hostwndId)
        end
        local templateManager = XLGetObject("Xunlei.UIEngine.TemplateManager")
        local wndTemplate = templateManager:GetTemplate(hostwndTemplateId, "HostWndTemplate")
        if not wndTemplate then
            return
        end
        local hostwnd = wndTemplate:CreateInstance(hostwndId)
        if not hostwnd then
            return
        end
        local objtreeTemplate = templateManager:GetTemplate(objtreeTemplateId, "ObjectTreeTemplate")
        local objtree = objtreeTemplate:CreateInstance(objtreeId)
        if not objtree then
            return
        end
        hostwnd:BindUIObjectTree(objtree)
        hostwnd:Create()

        -- 设定text
        local rootObj = objtree:GetRootObject()
        local textObj = objtree:GetUIObject("text")
        textObj:SetText(text)
        local width, height = textObj:GetTextExtent()
        textObj:SetObjPos(4,3,width,height)
        width,height = width + 8, height + 6
        rootObj:SetObjPos(0,0,width+8,height+6)
        
        -- 移动窗口位置
        local tippedOwner = tippedObj:GetOwner()
        local tippedHostWnd = tippedOwner:GetBindHostWnd()
        local l,t,r,b = tippedObj:GetObjPos()
        local left = l+(r-l-width)/2
        local top = b
        left,top = tippedHostWnd:HostWndPtToScreenPt(left,top)
        hostwnd:Move(left,top,width,height)
        
        return rootObj
    end
    local function hideTipsFunc(tippedObj)
        -- 销毁tips窗口
        local hostwndId = "TipsHelper.TipsHostWnd.Instance." .. tippedObj:GetID()

        local hostwndManager = XLGetObject("Xunlei.UIEngine.HostWndManager")
        local hostwnd = hostwndManager:GetHostWnd(hostwndId)
        if not hostwnd then
            return
        end
        
        local objtree = hostwnd:GetBindUIObjectTree()
        if objtree then
            hostwnd:UnbindUIObjectTree()
            local objtreeManager = XLGetObject("Xunlei.UIEngine.TreeManager")
            objtreeManager:DestroyTree(objtree)
        end
        hostwndManager:RemoveHostWnd(hostwndId)
        
        return true
    end
    
    -- state: tip 的状态, hide隐藏,showing正在显示,show显示,hiding正在隐藏,enter进入tips中
    local state = "hide"    -- 使用状态控制 tips 在各个状态间转换
    tippedObj:AttachListener("OnMouseMove", true, function(obj, x, y, flags)
        if state == "hide" then
            state = "showing"
            local timerMgr = XLGetObject("Xunlei.UIEngine.TimerManager")
            timerMgr:SetOnceTimer(function()
                if state == "showing" then
                    local tipsObj = showTipsFunc(obj, x, y)
                    if tipsObj then
                        state = "show"
                        
                        --[[ 这段代码,使得移动到弹出的窗口上时,窗口不会被隐藏
                        tipsObj:AttachListener("OnMouseMove", true, function()
                            if state == "hiding" then
                                state = "enter"
                            end
                        end)
                        tipsObj:AttachListener("OnMouseLeave", true, function()
                            if state == "enter" then
                                state = "hiding"
                                local timerMgr = XLGetObject("Xunlei.UIEngine.TimerManager")
                                timerMgr:SetOnceTimer(function()
                                    if state == "hiding" then
                                        if hideTipsFunc(obj) then
                                            state = "hide"
                                            if callback and type(callback) == "function" then
                                                callback(tippedObj, false)
                                            end
                                        end
                                    end
                                end, 300)
                            end
                        end)
                        --]]
                        
                        if callback and type(callback) == "function" then
                            callback(obj, true)
                        end
                    end
                end
            end, 300)
        elseif state == "hiding" then
            state = "show"
        end
    end)
    tippedObj:AttachListener("OnMouseLeave", true, function(obj, x, y, flags)
        if state == "show" then
            state = "hiding"
            local timerMgr = XLGetObject("Xunlei.UIEngine.TimerManager")
            timerMgr:SetOnceTimer(function()
                if state == "hiding" then
                    if hideTipsFunc(obj) then
                        state = "hide"
                        if callback and type(callback) == "function" then
                            callback(tippedObj, false)
                        end
                    end
                end
            end, 300)
        elseif state == "showing" then
            state = "hide"
        end
    end)
    
end

使用xlue实现tips,布布扣,bubuko.com

使用xlue实现tips

标签:des   style   blog   http   color   使用   os   io   

原文地址:http://www.cnblogs.com/zuibunan/p/3915291.html

(0)
(0)
   
举报
评论 一句话评论(0
登录后才能评论!
© 2014 mamicode.com 版权所有  联系我们:gaon5@hotmail.com
迷上了代码!