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buttons plugin : avoid multiple change event trigger #31000

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merged 8 commits into from Oct 2, 2020
Merged

buttons plugin : avoid multiple change event trigger #31000

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c3db204
avoid multiple change event trigger :
Lausselloic Jun 10, 2020
b2033e2
Merge branch 'v4-dev' into buttons_prevent_multiple_onchange
XhmikosR Sep 16, 2020
a01b2bf
replace `avoidTriggerChange` parameter by a css class `CLASS_NAME_CHA…
Lausselloic Oct 1, 2020
543c53f
Merge branch 'v4-dev' into buttons_prevent_multiple_onchange
Lausselloic Oct 1, 2020
b2b3607
fix linting error and upgrade bundlesize
Lausselloic Oct 1, 2020
4162e58
fix latest lint error
Lausselloic Oct 1, 2020
1632d3c
Revert "replace `avoidTriggerChange` parameter by a css class `CLASS_…
Lausselloic Oct 2, 2020
8a37b3b
Update .bundlewatch.config.json
XhmikosR Oct 2, 2020
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14 changes: 8 additions & 6 deletions js/src/button.js
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Expand Up @@ -56,7 +56,7 @@ class Button {

// Public

toggle() {
toggle(avoidTriggerChange) {
let triggerChangeEvent = true
let addAriaPressed = true
const rootElement = $(this._element).closest(
Expand Down Expand Up @@ -86,7 +86,9 @@ class Button {
input.checked = !this._element.classList.contains(CLASS_NAME_ACTIVE)
}

$(input).trigger('change')
if (!avoidTriggerChange) {
$(input).trigger('change')
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}
}

input.focus()
Expand All @@ -113,7 +115,7 @@ class Button {

// Static

static _jQueryInterface(config) {
static _jQueryInterface(config, avoidTriggerChange) {
return this.each(function () {
let data = $(this).data(DATA_KEY)

Expand All @@ -123,7 +125,7 @@ class Button {
}

if (config === 'toggle') {
data[config]()
data[config](avoidTriggerChange)
}
})
}
Expand Down Expand Up @@ -154,8 +156,8 @@ $(document)
return
}

if (initialButton.tagName !== 'LABEL' || inputBtn && inputBtn.type !== 'checkbox') {
Button._jQueryInterface.call($(button), 'toggle')
if (initialButton.tagName === 'INPUT' || button.tagName !== 'LABEL') {
Button._jQueryInterface.call($(button), 'toggle', initialButton.tagName === 'INPUT')
}
}
})
Expand Down
26 changes: 26 additions & 0 deletions js/tests/unit/button.js
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Expand Up @@ -180,6 +180,32 @@ $(function () {
$group.find('label').trigger('click')
})

QUnit.test('should trigger label change event only once', function (assert) {
assert.expect(1)
var done = assert.async()
var countChangeEvent = 0

var groupHTML = '<div class="btn-group" data-toggle="buttons">' +
'<label class="btn btn-primary">' +
'<input type="checkbox"><span class="check">✓</span> <i class="far fa-clipboard"></i> <span class="d-none d-lg-inline">checkbox</span>' +
'</label>' +
'</div>'
var $group = $(groupHTML).appendTo('#qunit-fixture')

var $btn = $group.children().eq(0)

$group.find('label').on('change', function () {
countChangeEvent++
})

setTimeout(function () {
assert.ok(countChangeEvent === 1, 'onchange event fired only once')
done()
}, 5)

$btn[0].click()
})

QUnit.test('should check for closest matching toggle', function (assert) {
assert.expect(18)
var groupHTML = '<div class="btn-group" data-toggle="buttons">' +
Expand Down