javascript - jquery 展开/折叠所有项目

Question

我有一堆可以通过单击图标单独折叠/展开的项目。我需要再修改一下我的代码。我需要在顶部添加另一个图标。当您单击它时，您可以一次展开/折叠以下所有项目。有人可以帮我做那部分吗？

这是我的javascript代码

$(document).on('show hide', '#programs-accordion', function(e) {
  $(e.target).siblings('.accordion-heading').find('.accordion-toggle i').toggleClass('icon-plus icon-minus');
});

这是我的haml代码

#programs-accordion.accordion
  - @patient_summary.programs.each_with_index do |program, index|
    .accordion-group
      .accordion-heading
        .accordion-toggle.group-accordion-toggle
          %a{ href: "#collapse-#{index}", data: { parent: '#programs-accordion', toggle: 'collapse' }}
            %i.icon-plus
          %a= program.name
         .accordion-body{id: "collapse-#{index}", class: (@office.to_i == office.id) ? "" : "collapse" }
           .accordion-inner 
            - office.positions.each_with_index do |position, index|
              #measures-accordion.accordion
                .accordion-group
                  .accordion-heading
                    .row-fluid
                      .span2{class: "offices-#{position.status}"}= position.status
                      .span1= position.results.first.value
                      .span2= position.results.first.value_date_time.blank? ? '' : Date.parse(position.results.first.value_date_time)
                      .span5= position.name

编辑：下面的JS小提琴链接

http://jsfiddle.net/HqXMN/

Answer 1

I got it working here.

$('.expandcollapse').click(function() {

    $('.collapse').each(function(index) {
        $(this).collapse("toggle");
    });

    if ($(this).html() == "<i class=\"icon-white icon-plus-sign\"></i> Expand All") {
        $(this).html("<i class=\"icon-white icon-minus-sign\"></i> Collapse All");
    }
    else {
        $(this).html("<i class=\"icon-white icon-plus-sign\"></i> Expand All");
    };
});

http://jsfiddle.net/HqXMN/6/

Answer 2

也许是这样的：

 $('.expandButton').click(function() {
   $('.accordion-body').addClass('collapsed');
   $('.accordion-toggle i').removeClass('icon-plus');
   $('.accordion-toggle i').addClass('icon-minus');
 });