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v4: Fix prevented show event disables modals with fade class from being displayed again #34087

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merged 2 commits into from
Jul 25, 2021
Merged

v4: Fix prevented show event disables modals with fade class from being displayed again #34087

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fa6c6bc
fix(modal): change the order we return from show() method
alpadev May 22, 2021
3329903
Merge branch 'v4-dev' into alpa/fix-prevented-modal-stuck-v4
XhmikosR Jul 25, 2021
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10 changes: 5 additions & 5 deletions js/src/modal.js
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Original file line number Diff line number Diff line change
Expand Up @@ -104,22 +104,22 @@ class Modal {
return
}

if ($(this._element).hasClass(CLASS_NAME_FADE)) {
this._isTransitioning = true
}

const showEvent = $.Event(EVENT_SHOW, {
relatedTarget
})

$(this._element).trigger(showEvent)

if (this._isShown || showEvent.isDefaultPrevented()) {
if (showEvent.isDefaultPrevented()) {
return
}

this._isShown = true

if ($(this._element).hasClass(CLASS_NAME_FADE)) {
this._isTransitioning = true
}

this._checkScrollbar()
this._setScrollbar()

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26 changes: 26 additions & 0 deletions js/tests/unit/modal.js
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Original file line number Diff line number Diff line change
Expand Up @@ -102,6 +102,32 @@ $(function () {
.bootstrapModal('show')
})

QUnit.test('should be shown after the first call to show() has been prevented while fading is enabled', function (assert) {
assert.expect(2)
var done = assert.async()

var $el = $('<div class="modal fade"><div class="modal-dialog" style="transition-duration: 20ms;"/></div>').appendTo('#qunit-fixture')

var prevented = false
$el
.on('show.bs.modal', function (e) {
if (!prevented) {
e.preventDefault()
prevented = true

setTimeout(function () {
$el.bootstrapModal('show')
})
}
})
.on('shown.bs.modal', function () {
assert.ok(prevented, 'show prevented')
assert.ok($el.hasClass('fade'))
done()
})
.bootstrapModal('show')
})

QUnit.test('should hide modal when hide is called', function (assert) {
assert.expect(3)
var done = assert.async()
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