Module:Navbox

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本模板用于执行模板{{Navbox}}，用法详见模板说明。

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--
-- This module will implement {{Navbox}}
--
 
local p = {}
 
local HtmlBuilder = require('Module:HtmlBuilder')
local Navbar = require('Module:Navbar')

local args
local frame
local tableRowAdded = false
local border
local listnums = {}
 
function trim(s)
    return (mw.ustring.gsub(s, "^%s*(.-)%s*$", "%1"))
end

function addTableRow(tbl)
    -- If any other rows have already been added, then we add a 2px gutter row.
    if tableRowAdded then
        tbl
            .tag('tr')
                .css('height', '2px')
                .tag('td')
    end
    
    tableRowAdded = true
    
    return tbl.tag('tr')
end


--
--   Title row
--
function renderTitleRow(tbl)
    if not args.title then return end
 
    local titleRow = addTableRow(tbl)
     
    if args.titlegroup then
        titleRow
            .tag('th')
                .attr('scope', 'row')
                .addClass('navbox-group')
                .addClass(args.titlegroupclass)
                .cssText(args.basestyle)
                .cssText(args.groupstyle)
                .cssText(args.titlegroupstyle)
                .wikitext(args.titlegroup)
    end
    
    local titleCell = titleRow.tag('th').attr('scope', 'col')
            
    if args.titlegroup then
        titleCell
            .css('border-left', '2px solid #fdfdfd')
            .css('width', '100%')
    end
    
    local titleColspan = 2
    if args.imageleft then titleColspan = titleColspan + 1 end
    if args.image then titleColspan = titleColspan + 1 end
    if args.titlegroup then titleColspan = titleColspan - 1 end
    
    titleCell
        .cssText(args.basestyle)
        .cssText(args.titlestyle)
        .addClass('navbox-title')
        .attr('colspan', titleColspan)
 
     renderNavBar(titleCell)
 
     titleCell
         .tag('div')
             .addClass(args.titleclass)
             .css('font-size', '110%')
             .newline()
             .wikitext(args.title)
end

function renderNavBar(titleCell)
    -- Depending on the presence of the navbar and/or show/hide link, we may need to add a spacer div on the left
    -- or right to keep the title centered.
    local spacerSide = nil

    if args.navbar == 'off' then
        -- No navbar, and client wants no spacer, i.e. wants the title to be shifted to the left. If there's
        -- also no show/hide link, then we need a spacer on the right to achieve the left shift.
        if args.state == 'plain' then spacerSide = 'right' end
    elseif args.navbar == 'plain' or args.navbar == 'off' or (not args.name and (border == 'subgroup' or border == 'child' or border == 'none')) then
        -- No navbar. Need a spacer on the left to balance out the width of the show/hide link.
        if args.state ~= 'plain' then spacerSide = 'left' end
    else
        -- Will render navbar (or error message). If there's no show/hide link, need a spacer on the right
        -- to balance out the width of the navbar.
        if args.state == 'plain' then spacerSide = 'right' end

        titleCell.wikitext(Navbar.navbar({ 
            args.name, 
            mini = 1, 
            fontstyle = (args.basestyle or '') .. ';' .. (args.titlestyle or '') ..  ';background:none transparent;border:none;'
        }))
    end
    
    -- Render the spacer div.
    if spacerSide then
        titleCell
            .tag('span')
                .css('float', spacerSide)
                .css('width', '8em')
                .css('font-size', '80%')
                .wikitext(' ')
    end
end


--
--   Above/Below rows
--
function renderAboveRow(tbl)
    if not args.above then return end
 
    addTableRow(tbl)
        .tag('td')
            .addClass('navbox-abovebelow')
            .addClass(args.aboveclass)
            .cssText(args.basestyle)
            .cssText(args.abovestyle)
            .attr('colspan', getAboveBelowColspan())
            .tag('div')
                .newline()
                .wikitext(args.above)
end

function renderBelowRow(tbl)
    if not args.below then return end
    
    addTableRow(tbl)
        .tag('td')
            .addClass('navbox-abovebelow')
            .addClass(args.belowclass)
            .cssText(args.basestyle)
            .cssText(args.belowstyle)
            .attr('colspan', getAboveBelowColspan())
            .tag('div')
                .newline()
                .wikitext(args.below)
end

function getAboveBelowColspan()
    local ret = 2
    if args.imageleft then ret = ret + 1 end
    if args.image then ret = ret + 1 end
    return ret
end
 
 
--
--   List rows
--
function renderListRow(tbl, listnum)
    local row = addTableRow(tbl)
    
    if listnum == 1 and args.imageleft then
        row
            .tag('td')
                .addClass('navbox-image')
                .addClass(args.imageclass)
                .css('width', '0%')
                .css('padding', '0px 2px 0px 0px')
                .cssText(args.imageleftstyle)
                .attr('rowspan', 2 * #listnums - 1)
                .tag('div')
                    .newline()
                    .wikitext(args.imageleft)
    end
 
    if args['group' .. listnum] then
        local groupCell = row.tag('th')
        
        groupCell
               .attr('scope', 'row')
               .addClass('navbox-group')
               .addClass(args.groupclass)
               .cssText(args.basestyle)
               
        if args.groupwidth then
            groupCell.css('width', args.groupwidth)
        end
           
        groupCell
            .cssText(args.groupstyle)
            .cssText(args['group' .. listnum .. 'style'])
            .wikitext(args['group' .. listnum])
    end
    
    local listCell = row.tag('td')

    if args['group' .. listnum] then
        listCell
            .css('text-align', 'left')
            .css('border-left-width', '2px')
            .css('border-left-style', 'solid')
    else
        listCell.attr('colspan', 2)
    end
    
    if not args.groupwidth then 
        listCell.css('width', '100%')
    end
    
    local isOdd = (listnum % 2) == 1
    local rowstyle = args.evenstyle
    if isOdd then rowstyle = args.oddstyle end
 
    local evenOdd
    if args.evenodd == 'swap' then
        if isOdd then evenOdd = 'even' else evenOdd = 'odd' end
    else
        if isOdd then evenOdd = args.evenodd or 'odd' else evenOdd = args.evenodd or 'even' end
    end
    
    listCell
        .css('padding', '0px')
        .cssText(args.liststyle)
        .cssText(rowstyle)
        .cssText(args['list' .. listnum .. 'style'])
        .addClass('navbox-list')
        .addClass('navbox-' .. evenOdd)
        .addClass(args.listclass)
        .tag('div')
            .css('padding', (listnum == 1 and args.list1padding) or args.listpadding or '0em 0.25em')
            .newline()
            .wikitext(args['list' .. listnum])

    if listnum == 1 and args.image then
        row
            .tag('td')
                .addClass('navbox-image')
                .addClass(args.imageclass)
                .css('width', '0%')
                .css('padding', '0px 0px 0px 2px')
                .cssText(args.imagestyle)
                .attr('rowspan', 2 * #listnums - 1)
                .tag('div')
                    .newline()
                    .wikitext(args.image)
    end
end


--
--   Tracking categories
--
function renderTrackingCategories(builder)
    local frame = mw.getCurrentFrame()
    
    if not frame then return end
    
    local s = frame:preprocess('{{#ifeq:{{NAMESPACE}}|{{ns:10}}|1|0}}{{SUBPAGENAME}}')
    if mw.ustring.sub(s, 1, 1) == '0' then return end -- not in template space
    local subpage = mw.ustring.lower(mw.ustring.sub(s, 2))
    if subpage == 'doc' or subpage == 'sandbox' or subpage == 'testcases' then return end
    
    for i, cat in ipairs(getTrackingCategories()) do
        builder.wikitext('[[Category:' .. cat .. ']]') 
    end
end

function getTrackingCategories()
    local cats = {}
    if needsHorizontalLists() then table.insert(cats, 'Navigational boxes without horizontal lists') end
    if hasCustomListSpacing() then table.insert(cats, 'Navigational boxes with custom list spacing') end
    if hasBackgroundColors() then table.insert(cats, 'Navboxes using background colours') end
    return cats
end

function needsHorizontalLists()
    if border == 'child' or border == 'subgroup'  or args.tracking == 'no' then return false end
    
    local listClasses = {'plainlist', 'hlist', 'hlist hnum', 'hlist vcard', 'vcard hlist'}
    for i, cls in ipairs(listClasses) do
        if args.listclass == cls or args.bodyclass == cls then
            return false
        end
    end

    return true
end

function hasCustomListSpacing()
    return args.liststyle == 'padding: 0.25em 0; line-height: 1.3em;' or 
           args.liststyle == 'padding:0.25em 0; line-height:1.4em; width:auto;' or 
           args.liststyle == 'padding:0.4em 0; line-height:1.4em;'
end

function hasBackgroundColors()
    return args.titlestyle or args.groupstyle
end


--
--   Main navbox tables
--
function renderMainTable()
    local tbl = HtmlBuilder.create('table')
        .attr('cellspacing', 0)
        .addClass('nowraplinks')
        .addClass(args.bodyclass)
             
    if args.title and (args.state ~= 'plain' and args.state ~= 'off') then
        tbl
            .addClass('collapsible')
            .addClass(args.state or 'autocollapse')
    end
 
    tbl.css('border-spacing', 0)
    if border == 'subgroup' or border == 'child' or border == 'none' then
        tbl
            .addClass('navbox-subgroup')
            .cssText(args.bodystyle)
            .cssText(args.style)
    else -- regular navobx - bodystyle and style will be applied to the wrapper table
        tbl
            .addClass('navbox-inner')
            .css('background', 'transparent')
            .css('color', 'inherit')
    end
    tbl.cssText(args.innerstyle)
 
    renderTitleRow(tbl)
    renderAboveRow(tbl)
    for i, listnum in ipairs(listnums) do
        renderListRow(tbl, listnum) 
    end
    renderBelowRow(tbl)
    
    return tbl
end

function p._navbox(navboxArgs)
    args = navboxArgs
    
    for k, v in pairs(args) do
        local listnum = ('' .. k):match('^list(%d+)$')
        if listnum then table.insert(listnums, tonumber(listnum)) end
    end
    table.sort(listnums)
 
    border = trim(args.border or args[1] or '')

    -- render the main body of the navbox
    local tbl = renderMainTable()

    -- render the appropriate wrapper around the navbox, depending on the border param
    local res = HtmlBuilder.create()
    if border == 'none' then
        res.node(tbl)
    elseif border == 'subgroup' or border == 'child' then
        -- We assume that this navbox is being rendered in a list cell of a parent navbox, and is
        -- therefore inside a div with padding:0em 0.25em. We start with a </div> to avoid the
        -- padding being applied, and at the end add a <div> to balance out the parent's </div>
        res
            .tag('/div', {unclosed = true})
                .done()
            .node(tbl)
            .tag('div', {unclosed = true})
    else
        res
            .tag('table')
                .attr('cellspacing', 0)
                .addClass('navbox')
                .css('border-spacing', 0)
                .cssText(args.bodystyle)
                .cssText(args.style)
                .tag('tr')
                    .tag('td')
                        .css('padding', '2px')
                        .node(tbl)
    end
 
    renderTrackingCategories(res)
 
    return tostring(res)
end
 
function p.navbox(frame)
    -- ParserFunctions considers the empty string to be false, so to preserve the previous 
    -- behavior of {{navbox}}, change any empty arguments to nil, so Lua will consider
    -- them false too.
    local args = {}
    local parent_args = frame:getParent().args;

    -- Out of order parsing bug.
    local temp;
    temp = parent_args.title;
    temp = parent_args.above;
    for i = 1, 35 do
        temp = parent_args["group" .. tostring(i)];
        temp = parent_args["list" .. tostring(i)];
    end    
    temp = parent_args.below;
    
    for k, v in pairs(parent_args) do
        if v ~= '' then
            args[k] = v
        end
    end
    return p._navbox(args)
end
 
return p