强制在Chrome中打开用于打印的详细信息/摘要标签 [英] Force open the details / summary tag for Print in Chrome

问题描述

我尝试在Chrome中打印details标签的内容，但无法强制打开。

I try to print the content of the details tag in Chrome but I can't force it to open.

这是我在打印CSS中所拥有的：

This is what I have in my print CSS :

details, details > * { display:block !important; }

但是只有在打印页面之前打开详细信息，内容才会显示。

But the content appear only if I open the details before printing the page.

有没有办法通过chrome上的css打印强制打开细节？

Is there any way to force opening details by css print on chrome ?

推荐答案

I通过使用BeforePrint和Afterprint强制打开开始标签来找到解决方案

I found the solution by forcing the opening details tag with BeforePrint and Afterprint

class App.Views.main extends backbone.View
el : "body"
events : 
    "click [data-auto-focus]":"autoFocus"
initialize : () ->
    # Add conditional classname based on support
    $('html').addClass( (if $.fn.details.support then 'details' else 'no-details'))
    $('details').details()

    if (window.matchMedia)
        mediaQueryList = window.matchMedia('print')
        mediaQueryList.addListener (mql) =>
            if (mql.matches)
                @beforePrint()
            else 
                @afterPrint()

    window.onbeforeprint = => @beforePrint
    window.onafterprint = => @afterPrint

render : () ->

openedDetailsBeforePrint : null

beforePrint : () ->
    console.log "before print"
    @openedDetailsBeforePrint = @$el.find('details[open], details.open')
    if ($('html').hasClass('no-details')) then @$el.find('details').addClass("open") else @$el.find('details').attr("open", "")

afterPrint : () ->
    console.log "after print"
    @$el.find('details').removeClass(".open").removeAttr("open")
    if ($('html').hasClass('no-details')) then @openedDetailsBeforePrint.addClass("open") else @openedDetailsBeforePrint.attr("open", "")


autoFocus : (e) ->
    $element = if (e.currentTarget) then $(e.currentTarget) else $(e.srcElement)
    return $($element.attr "data-auto-focus").focus()

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