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Tuitidh

Tog faicsinneachd susbaint thairis air do phròiseact le beagan chlasaichean agus na plugins JavaScript againn.

Mar a tha e ag obair

Tha am plugan tuiteam JavaScript air a chleachdadh gus susbaint a shealltainn agus fhalach. Bithear a’ cleachdadh putanan no acraichean mar luchd-brosnachaidh a tha air am mapadh gu eileamaidean sònraichte a thogas tu. Le bhith a’ tuiteam às eileamaid beothaichidh heighte an luach làithreach gu 0. Leis mar a làimhsicheas CSS beòthachaidhean, chan urrainn dhut a chleachdadh paddingair .collapseeileamaid. An àite sin, cleachd an clas mar eileamaid còmhdaich neo-eisimeileach.

Tha buaidh beothalachd na co-phàirt seo an urra ri prefers-reduced-motionceist nam meadhanan. Faic an earrann gluasad lùghdaichte de na sgrìobhainnean ruigsinneachd againn .

eisimpleir

Cliog air na putanan gu h-ìosal gus eileamaid eile a shealltainn agus fhalach tro atharrachaidhean clas:

  • .collapsea’ falach susbaint
  • .collapsingair a chur an sàs rè eadar-ghluasadan
  • .collapse.showa’ nochdadh susbaint

San fharsaingeachd, tha sinn a 'moladh a bhith a' cleachdadh putan leis a ' data-targetghnè. Ged nach eilear ga mholadh bho shealladh semantach, faodaidh tu cuideachd ceangal a chleachdadh leis a’ hreffheart (agus a role="button"). Anns an dà chùis, tha data-toggle="collapse"e riatanach.

Some placeholder content for the collapse component. This panel is hidden by default but revealed when the user activates the relevant trigger.
<p>
  <a class="btn btn-primary" data-toggle="collapse" href="#collapseExample" role="button" aria-expanded="false" aria-controls="collapseExample">
    Link with href
  </a>
  <button class="btn btn-primary" type="button" data-toggle="collapse" data-target="#collapseExample" aria-expanded="false" aria-controls="collapseExample">
    Button with data-target
  </button>
</p>
<div class="collapse" id="collapseExample">
  <div class="card card-body">
    Some placeholder content for the collapse component. This panel is hidden by default but revealed when the user activates the relevant trigger.
  </div>
</div>

Cothromach

Bidh am plugan tuiteam cuideachd a’ toirt taic do bhith a’ tuiteam gu còmhnard. Cuir ris a’ .widthchlas mion-atharrachaidh gus an gluasad an widthàite heightagus suidhich widthair an eileamaid leanabh sa bhad. Faodaidh tu an Sass àbhaisteach agad fhèin a sgrìobhadh, stoidhlichean in-loidhne a chleachdadh, no na goireasan leud againn a chleachdadh .

Thoir an aire ged a tha seata aig an eisimpleir gu h-ìosal min-heightgus cus ath-pheantadh a sheachnadh anns na docaichean againn, chan eil seo riatanach gu sònraichte. Chan eil widtha dhìth ach an eileamaid air an leanabh.

This is some placeholder content for a horizontal collapse. It's hidden by default and shown when triggered.
<p>
  <button class="btn btn-primary" type="button" data-toggle="collapse" data-target="#collapseWidthExample" aria-expanded="false" aria-controls="collapseWidthExample">
    Toggle width collapse
  </button>
</p>
<div style="min-height: 120px;">
  <div class="collapse width" id="collapseWidthExample">
    <div class="card card-body" style="width: 320px;">
      This is some placeholder content for a horizontal collapse. It's hidden by default and shown when triggered.
    </div>
  </div>
</div>

Ioma targaidean

A <button>no <a>is urrainn dha grunn eileamaidean a shealltainn agus fhalach le bhith a’ toirt iomradh orra le roghnaiche JQuery na fheart hrefno na data-targetfheart. Iomadaich <button>no <a>faodaidh iad eileamaid a shealltainn agus fhalach ma tha iad uile a’ toirt iomradh air leis a’ hrefbhuadhan data-targetaca

Some placeholder content for the first collapse component of this multi-collapse example. This panel is hidden by default but revealed when the user activates the relevant trigger.
Some placeholder content for the second collapse component of this multi-collapse example. This panel is hidden by default but revealed when the user activates the relevant trigger.
<p>
  <a class="btn btn-primary" data-toggle="collapse" href="#multiCollapseExample1" role="button" aria-expanded="false" aria-controls="multiCollapseExample1">Toggle first element</a>
  <button class="btn btn-primary" type="button" data-toggle="collapse" data-target="#multiCollapseExample2" aria-expanded="false" aria-controls="multiCollapseExample2">Toggle second element</button>
  <button class="btn btn-primary" type="button" data-toggle="collapse" data-target=".multi-collapse" aria-expanded="false" aria-controls="multiCollapseExample1 multiCollapseExample2">Toggle both elements</button>
</p>
<div class="row">
  <div class="col">
    <div class="collapse multi-collapse" id="multiCollapseExample1">
      <div class="card card-body">
        Some placeholder content for the first collapse component of this multi-collapse example. This panel is hidden by default but revealed when the user activates the relevant trigger.
      </div>
    </div>
  </div>
  <div class="col">
    <div class="collapse multi-collapse" id="multiCollapseExample2">
      <div class="card card-body">
        Some placeholder content for the second collapse component of this multi-collapse example. This panel is hidden by default but revealed when the user activates the relevant trigger.
      </div>
    </div>
  </div>
</div>

Eisimpleir bogsa-ciùil

Le bhith a’ cleachdadh pàirt na cairt , faodaidh tu an giùlan tuiteam sìos àbhaisteach a leudachadh gus bogsa a chruthachadh. Gus an stoidhle bogsa a choileanadh gu ceart, bi cinnteach gun cleachd .accordionthu mar phasgan.

Cuid de shusbaint neach-àite airson a’ chiad phannal bogsa. Tha am pannal seo air a shealltainn gu bunaiteach, le taing don .showchlas.

Some placeholder content for the second accordion panel. This panel is hidden by default.

And lastly, the placeholder content for the third and final accordion panel. This panel is hidden by default.
<div class="accordion" id="accordionExample">
  <div class="card">
    <div class="card-header" id="headingOne">
      <h2 class="mb-0">
        <button class="btn btn-link btn-block text-left" type="button" data-toggle="collapse" data-target="#collapseOne" aria-expanded="true" aria-controls="collapseOne">
          Collapsible Group Item #1
        </button>
      </h2>
    </div>

    <div id="collapseOne" class="collapse show" aria-labelledby="headingOne" data-parent="#accordionExample">
      <div class="card-body">
        Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the <code>.show</code> class.
      </div>
    </div>
  </div>
  <div class="card">
    <div class="card-header" id="headingTwo">
      <h2 class="mb-0">
        <button class="btn btn-link btn-block text-left collapsed" type="button" data-toggle="collapse" data-target="#collapseTwo" aria-expanded="false" aria-controls="collapseTwo">
          Collapsible Group Item #2
        </button>
      </h2>
    </div>
    <div id="collapseTwo" class="collapse" aria-labelledby="headingTwo" data-parent="#accordionExample">
      <div class="card-body">
        Some placeholder content for the second accordion panel. This panel is hidden by default.
      </div>
    </div>
  </div>
  <div class="card">
    <div class="card-header" id="headingThree">
      <h2 class="mb-0">
        <button class="btn btn-link btn-block text-left collapsed" type="button" data-toggle="collapse" data-target="#collapseThree" aria-expanded="false" aria-controls="collapseThree">
          Collapsible Group Item #3
        </button>
      </h2>
    </div>
    <div id="collapseThree" class="collapse" aria-labelledby="headingThree" data-parent="#accordionExample">
      <div class="card-body">
        And lastly, the placeholder content for the third and final accordion panel. This panel is hidden by default.
      </div>
    </div>
  </div>
</div>

Ruigsinneachd

Be sure to add aria-expanded to the control element. This attribute explicitly conveys the current state of the collapsible element tied to the control to screen readers and similar assistive technologies. If the collapsible element is closed by default, the attribute on the control element should have a value of aria-expanded="false". If you’ve set the collapsible element to be open by default using the show class, set aria-expanded="true" on the control instead. The plugin will automatically toggle this attribute on the control based on whether or not the collapsible element has been opened or closed (via JavaScript, or because the user triggered another control element also tied to the same collapsible element). If the control element’s HTML element is not a button (e.g., an <a> or <div>), the attribute role="button" should be added to the element.

If your control element is targeting a single collapsible element – i.e. the data-target attribute is pointing to an id selector – you should add the aria-controls attribute to the control element, containing the id of the collapsible element. Modern screen readers and similar assistive technologies make use of this attribute to provide users with additional shortcuts to navigate directly to the collapsible element itself.

Note that Bootstrap’s current implementation does not cover the various keyboard interactions described in the ARIA Authoring Practices Guide accordion pattern - you will need to include these yourself with custom JavaScript.

Usage

The collapse plugin utilizes a few classes to handle the heavy lifting:

  • .collapse hides the content
  • .collapse.show shows the content
  • .collapsing is added when the transition starts, and removed when it finishes

These classes can be found in _transitions.scss.

Via data attributes

Just add data-toggle="collapse" and a data-target to the element to automatically assign control of one or more collapsible elements. The data-target attribute accepts a CSS selector to apply the collapse to. Be sure to add the class collapse to the collapsible element. If you’d like it to default open, add the additional class show.

To add accordion-like group management to a collapsible area, add the data attribute data-parent="#selector". Refer to the demo to see this in action.

Via JavaScript

Enable manually with:

$('.collapse').collapse()

Options

Options can be passed via data attributes or JavaScript. For data attributes, append the option name to data-, as in data-parent="".

Name Type Default Description
parent selector | jQuery object | DOM element false If parent is provided, then all collapsible elements under the specified parent will be closed when this collapsible item is shown. (similar to traditional accordion behavior - this is dependent on the card class). The attribute has to be set on the target collapsible area.
toggle boolean true Toggles the collapsible element on invocation

Methods

Asynchronous methods and transitions

All API methods are asynchronous and start a transition. They return to the caller as soon as the transition is started but before it ends. In addition, a method call on a transitioning component will be ignored.

See our JavaScript documentation for more information.

.collapse(options)

Activates your content as a collapsible element. Accepts an optional options object.

$('#myCollapsible').collapse({
  toggle: false
})

.collapse('toggle')

Toggles a collapsible element to shown or hidden. Returns to the caller before the collapsible element has actually been shown or hidden (i.e. before the shown.bs.collapse or hidden.bs.collapse event occurs).

.collapse('show')

Shows a collapsible element. Returns to the caller before the collapsible element has actually been shown (i.e. before the shown.bs.collapse event occurs).

.collapse('hide')

Hides a collapsible element. Returns to the caller before the collapsible element has actually been hidden (i.e. before the hidden.bs.collapse event occurs).

.collapse('dispose')

Destroys an element’s collapse.

Events

Bootstrap’s collapse class exposes a few events for hooking into collapse functionality.

Event Type Description
show.bs.collapse Bidh an tachartas seo a’ losgadh sa bhad nuair showa chanar ris an dòigh eisimpleir.
air a nochdadh.bs.collapse Thèid an tachartas seo a losgadh nuair a tha eileamaid tuiteamach air a dhèanamh follaiseach don neach-cleachdaidh (feitheamh ri eadar-ghluasadan CSS a chrìochnachadh).
seiche.bs.collapse Tha an tachartas seo air a losgadh sa bhad nuair a chaidh am hidemodh a ghairm.
falaichte.bs.collapse Thèid an tachartas seo a losgadh nuair a chaidh eileamaid tuiteamach fhalach bhon chleachdaiche (feitheamh ri eadar-ghluasadan CSS a chrìochnachadh).
$('#myCollapsible').on('hidden.bs.collapse', function () {
  // do something...
})