</div>
{% endexample %}
+## Multiple triggers / targets
+
+A `<button>` or `<a>` can show and hide multiple elements by referencing them with a JQuery selector in its `href` or `data-target` attribute.
+Multiple `<button>` or `<a>` can show and hide an element if they each reference it with their `href` or `data-target` attribute
+
+{% example html %}
+<p>
+ <a class="btn btn-primary" data-toggle="collapse" href="#multiCollapseExample1" 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="multiCollapseExample1">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-block">
+ Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident.
+ </div>
+ </div>
+ </div>
+ <div class="col">
+ <div class="collapse multi-collapse" id="multiCollapseExample2">
+ <div class="card card-block">
+ Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident.
+ </div>
+ </div>
+ </div>
+</div>
+{% endexample %}
+
## Accordion example
Using the [card]({{ site.baseurl }}/docs/{{ site.docs_version }}/components/card/) component, you can extend the default collapse behavior to create an accordion.
### Via data attributes
-Just add `data-toggle="collapse"` and a `data-target` to the element to automatically assign control of a collapsible element. 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`.
+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.
`[data-toggle="collapse"][href="#${element.id}"],` +
`[data-toggle="collapse"][data-target="#${element.id}"]`
))
+ const tabToggles = $(Selector.DATA_TOGGLE)
+ for (let i = 0; i < tabToggles.length; i++) {
+ const elem = tabToggles[i]
+ const selector = Util.getSelectorFromElement(elem)
+ if (selector !== null && $(selector).filter(element).length > 0) {
+ this._triggerArray.push(elem)
+ }
+ }
this._parent = this._config.parent ? this._getParent() : null
.removeClass(ClassName.SHOW)
if (this._triggerArray.length) {
- $(this._triggerArray)
- .addClass(ClassName.COLLAPSED)
- .attr('aria-expanded', false)
+ for (let i = 0; i < this._triggerArray.length; i++) {
+ const trigger = this._triggerArray[i]
+ const selector = Util.getSelectorFromElement(trigger)
+ if (selector !== null) {
+ const $elem = $(selector)
+ if (!$elem.hasClass(ClassName.SHOW)) {
+ $(trigger).addClass(ClassName.COLLAPSED)
+ .attr('aria-expanded', false)
+ }
+ }
+ }
}
this.setTransitioning(true)
event.preventDefault()
}
- const target = Collapse._getTargetFromElement(this)
- const data = $(target).data(DATA_KEY)
- const config = data ? 'toggle' : $(this).data()
-
- Collapse._jQueryInterface.call($(target), config)
+ const $trigger = $(this)
+ const selector = Util.getSelectorFromElement(this)
+ $(selector).each(function () {
+ const $target = $(this)
+ const data = $target.data(DATA_KEY)
+ const config = data ? 'toggle' : $trigger.data()
+ Collapse._jQueryInterface.call($target, config)
+ })
})
assert.ok(!/height/i.test($el.attr('style')), 'has height reset')
})
+
+ QUnit.test('should show multiple collapsed elements', function (assert) {
+ assert.expect(4)
+ var done = assert.async()
+ var $target = $('<a role="button" data-toggle="collapse" class="collapsed" href=".multi"/>').appendTo('#qunit-fixture')
+ var $el = $('<div class="collapse multi"/>').appendTo('#qunit-fixture')
+ var $el2 = $('<div class="collapse multi"/>').appendTo('#qunit-fixture')
+ $el.one('shown.bs.collapse', function () {
+ assert.ok($el.hasClass('show'), 'has class "show"')
+ assert.ok(!/height/i.test($el.attr('style')), 'has height reset')
+ })
+ $el2.one('shown.bs.collapse', function () {
+ assert.ok($el2.hasClass('show'), 'has class "show"')
+ assert.ok(!/height/i.test($el2.attr('style')), 'has height reset')
+ done()
+ })
+ $target.trigger('click')
+ })
+
QUnit.test('should collapse only the first collapse', function (assert) {
assert.expect(2)
+ var done = assert.async()
var html = [
'<div class="panel-group" id="accordion1">',
'<div class="panel">',
$(html).appendTo('#qunit-fixture')
var $el1 = $('#collapse1')
var $el2 = $('#collapse2')
- $el1.bootstrapCollapse('show')
-
- assert.ok($el1.hasClass('show'))
- assert.ok($el2.hasClass('show'))
+ $el1.one('shown.bs.collapse', function () {
+ assert.ok($el1.hasClass('show'))
+ assert.ok($el2.hasClass('show'))
+ done()
+ }).bootstrapCollapse('show')
})
QUnit.test('should hide a collapsed element', function (assert) {
$target.trigger($.Event('click'))
})
+
+ QUnit.test('should add "collapsed" class to triggers only when all the targeted collapse are hidden', function (assert) {
+ assert.expect(9)
+ var done = assert.async()
+
+ var $trigger1 = $('<a role="button" data-toggle="collapse" href="#test1"/>').appendTo('#qunit-fixture')
+ var $trigger2 = $('<a role="button" data-toggle="collapse" href="#test2"/>').appendTo('#qunit-fixture')
+ var $trigger3 = $('<a role="button" data-toggle="collapse" href=".multi"/>').appendTo('#qunit-fixture')
+
+ var $target1 = $('<div id="test1" class="multi"/>').appendTo('#qunit-fixture')
+ var $target2 = $('<div id="test2" class="multi"/>').appendTo('#qunit-fixture')
+
+ $target2.one('shown.bs.collapse', function () {
+ assert.ok(!$trigger1.hasClass('collapsed'), 'trigger1 does not have collapsed class')
+ assert.ok(!$trigger2.hasClass('collapsed'), 'trigger2 does not have collapsed class')
+ assert.ok(!$trigger3.hasClass('collapsed'), 'trigger3 does not have collapsed class')
+ $target2.one('hidden.bs.collapse', function () {
+ assert.ok(!$trigger1.hasClass('collapsed'), 'trigger1 does not have collapsed class')
+ assert.ok($trigger2.hasClass('collapsed'), 'trigger2 has collapsed class')
+ assert.ok(!$trigger3.hasClass('collapsed'), 'trigger3 does not have collapsed class')
+ $target1.one('hidden.bs.collapse', function () {
+ assert.ok($trigger1.hasClass('collapsed'), 'trigger1 has collapsed class')
+ assert.ok($trigger2.hasClass('collapsed'), 'trigger2 has collapsed class')
+ assert.ok($trigger3.hasClass('collapsed'), 'trigger3 has collapsed class')
+ done()
+ })
+ $trigger1.trigger('click')
+ })
+ $trigger2.trigger('click')
+ })
+ $trigger3.trigger('click')
+ })
+
+ QUnit.test('should set aria-expanded="true" to triggers targetting shown collaspe and aria-expanded="false" only when all the targeted collapses are shown', function (assert) {
+ assert.expect(9)
+ var done = assert.async()
+
+ var $trigger1 = $('<a role="button" data-toggle="collapse" href="#test1"/>').appendTo('#qunit-fixture')
+ var $trigger2 = $('<a role="button" data-toggle="collapse" href="#test2"/>').appendTo('#qunit-fixture')
+ var $trigger3 = $('<a role="button" data-toggle="collapse" href=".multi"/>').appendTo('#qunit-fixture')
+
+ var $target1 = $('<div id="test1" class="multi collapse"/>').appendTo('#qunit-fixture')
+ var $target2 = $('<div id="test2" class="multi collapse"/>').appendTo('#qunit-fixture')
+
+ $target2.one('shown.bs.collapse', function () {
+ assert.strictEqual($trigger1.attr('aria-expanded'), 'true', 'aria-expanded on trigger1 is "true"')
+ assert.strictEqual($trigger2.attr('aria-expanded'), 'true', 'aria-expanded on trigger2 is "true"')
+ assert.strictEqual($trigger3.attr('aria-expanded'), 'true', 'aria-expanded on trigger3 is "true"')
+ $target2.one('hidden.bs.collapse', function () {
+ assert.strictEqual($trigger1.attr('aria-expanded'), 'true', 'aria-expanded on trigger1 is "true"')
+ assert.strictEqual($trigger2.attr('aria-expanded'), 'false', 'aria-expanded on trigger2 is "false"')
+ assert.strictEqual($trigger3.attr('aria-expanded'), 'true', 'aria-expanded on trigger3 is "true"')
+ $target1.one('hidden.bs.collapse', function () {
+ assert.strictEqual($trigger1.attr('aria-expanded'), 'false', 'aria-expanded on trigger1 is "fasle"')
+ assert.strictEqual($trigger2.attr('aria-expanded'), 'false', 'aria-expanded on trigger2 is "false"')
+ assert.strictEqual($trigger3.attr('aria-expanded'), 'false', 'aria-expanded on trigger3 is "false"')
+ done()
+ })
+ $trigger1.trigger('click')
+ })
+ $trigger2.trigger('click')
+ })
+ $trigger3.trigger('click')
+ })
})