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 height
e an luach làithreach gu 0
. Leis mar a làimhsicheas CSS beòthachaidhean, chan urrainn dhut a chleachdadh padding
air .collapse
eileamaid. An àite sin, cleachd an clas mar eileamaid còmhdaich neo-eisimeileach.
prefers-reduced-motion
ceist 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:
.collapse
a’ falach susbaint.collapsing
air a chur an sàs rè eadar-ghluasadan.collapse.show
a’ nochdadh susbaint
San fharsaingeachd, tha sinn a 'moladh a bhith a' cleachdadh putan leis a ' data-target
ghnè. Ged nach eilear ga mholadh bho shealladh semantach, faodaidh tu cuideachd ceangal a chleachdadh leis a’ href
fheart (agus a role="button"
). Anns an dà chùis, tha data-toggle="collapse"
e riatanach.
<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’ .width
chlas mion-atharrachaidh gus an gluasad an width
àite height
agus suidhich width
air 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 .
min-height
gus cus ath-pheantadh a sheachnadh anns na docaichean againn, chan eil seo riatanach gu sònraichte.
Chan eil width
a dhìth ach an eileamaid air an leanabh.
<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 href
no na data-target
fheart. Iomadaich <button>
no <a>
faodaidh iad eileamaid a shealltainn agus fhalach ma tha iad uile a’ toirt iomradh air leis a’ href
bhuadhan data-target
aca
<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 .accordion
thu mar phasgan.
.show
chlas.
<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.
.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 show a 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 hide modh 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...
})