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Add show and hide methods to dropdown (#27370)

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This commit is contained in:
galczo5 2018-10-20 13:27:51 +02:00 committed by XhmikosR
parent 5088f02730
commit 6cbcd03efb
3 changed files with 312 additions and 0 deletions
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46
js/src/dropdown.js
View File

@ -194,6 +194,52 @@ class Dropdown {
.trigger($.Event(Event.SHOWN, relatedTarget))
}
show() {
if (this._element.disabled || $(this._element).hasClass(ClassName.DISABLED) || $(this._menu).hasClass(ClassName.SHOW)) {
return
}
const relatedTarget = {
relatedTarget: this._element
}
const showEvent = $.Event(Event.SHOW, relatedTarget)
const parent = Dropdown._getParentFromElement(this._element)
$(parent).trigger(showEvent)
if (showEvent.isDefaultPrevented()) {
return
}
$(this._menu).toggleClass(ClassName.SHOW)
$(parent)
.toggleClass(ClassName.SHOW)
.trigger($.Event(Event.SHOWN, relatedTarget))
}
hide() {
if (this._element.disabled || $(this._element).hasClass(ClassName.DISABLED) || !$(this._menu).hasClass(ClassName.SHOW)) {
return
}
const relatedTarget = {
relatedTarget: this._element
}
const hideEvent = $.Event(Event.HIDE, relatedTarget)
const parent = Dropdown._getParentFromElement(this._element)
$(parent).trigger(hideEvent)
if (hideEvent.isDefaultPrevented()) {
return
}
$(this._menu).toggleClass(ClassName.SHOW)
$(parent)
.toggleClass(ClassName.SHOW)
.trigger($.Event(Event.HIDDEN, relatedTarget))
}
dispose() {
$.removeData(this._element, DATA_KEY)
$(this._element).off(EVENT_KEY)

264
js/tests/unit/dropdown.js
View File

@ -1097,4 +1097,268 @@ $(function () {
assert.ok(dropdown._menu === null)
assert.ok(dropdown._element === null)
})
QUnit.test('should show dropdown', function (assert) {
assert.expect(2)
var dropdownHTML =
'<div class="dropdown">' +
' <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var dropdown = $dropdown.data('bs.dropdown')
var done = assert.async()
$dropdown
.parent('.dropdown')
.on('show.bs.dropdown', function () {
assert.ok(true, 'show was fired')
})
.on('shown.bs.dropdown', function () {
assert.ok($dropdown.parent('.dropdown').hasClass('show'), 'dropdown menu is shown')
done()
})
dropdown.show()
})
QUnit.test('should hide dropdown', function (assert) {
assert.expect(2)
var dropdownHTML =
'<div class="dropdown">' +
' <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var dropdown = $dropdown.data('bs.dropdown')
var done = assert.async()
$dropdown.trigger('click')
$dropdown
.parent('.dropdown')
.on('hide.bs.dropdown', function () {
assert.ok(true, 'hide was fired')
})
.on('hidden.bs.dropdown', function () {
assert.ok(!$dropdown.parent('.dropdown').hasClass('show'), 'dropdown menu is hidden')
done()
})
dropdown.hide()
})
QUnit.test('should not hide dropdown', function (assert) {
assert.expect(1)
var dropdownHTML =
'<div class="dropdown">' +
' <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var dropdown = $dropdown.data('bs.dropdown')
$dropdown.trigger('click')
dropdown.show()
assert.ok($dropdown.parent('.dropdown').hasClass('show'), 'dropdown menu is still shown')
})
QUnit.test('should not show dropdown', function (assert) {
assert.expect(1)
var dropdownHTML =
'<div class="dropdown">' +
' <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var dropdown = $dropdown.data('bs.dropdown')
dropdown.hide()
assert.ok(!$dropdown.parent('.dropdown').hasClass('show'), 'dropdown menu is still hidden')
})
QUnit.test('should show dropdown', function (assert) {
assert.expect(2)
var dropdownHTML =
'<div class="dropdown">' +
' <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var dropdown = $dropdown.data('bs.dropdown')
var done = assert.async()
$dropdown
.parent('.dropdown')
.on('show.bs.dropdown', function () {
assert.ok(true, 'show was fired')
})
.on('shown.bs.dropdown', function () {
assert.ok($dropdown.parent('.dropdown').hasClass('show'), 'dropdown menu is shown')
done()
})
dropdown.show()
})
QUnit.test('should prevent default event on show method call', function (assert) {
assert.expect(1)
var dropdownHTML =
'<div class="dropdown">' +
' <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var dropdown = $dropdown.data('bs.dropdown')
var done = assert.async()
$dropdown
.parent('.dropdown')
.on('show.bs.dropdown', function (event) {
event.preventDefault()
done()
})
dropdown.show()
assert.ok(!$dropdown.parent('.dropdown').hasClass('show'), 'dropdown menu is hidden')
})
QUnit.test('should prevent default event on hide method call', function (assert) {
assert.expect(1)
var dropdownHTML =
'<div class="dropdown">' +
' <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var dropdown = $dropdown.data('bs.dropdown')
var done = assert.async()
$dropdown.trigger('click')
$dropdown
.parent('.dropdown')
.on('hide.bs.dropdown', function (event) {
event.preventDefault()
done()
})
dropdown.hide()
assert.ok($dropdown.parent('.dropdown').hasClass('show'), 'dropdown menu is shown')
})
QUnit.test('should not open dropdown via show method if target is disabled via attribute', function (assert) {
assert.expect(1)
var dropdownHTML =
'<div class="dropdown">' +
' <button disabled href="#" class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
'</div>'
$(dropdownHTML).appendTo('#qunit-fixture')
var $dropdown = $('#qunit-fixture').find('[data-toggle="dropdown"]').bootstrapDropdown()
$dropdown.show()
assert.ok(!$dropdown.parent('.dropdown').hasClass('show'))
})
QUnit.test('should not open dropdown via show method if target is disabled via class', function (assert) {
assert.expect(1)
var dropdownHTML =
'<div class="dropdown">' +
' <button href="#" class="btn dropdown-toggle disabled" data-toggle="dropdown">Dropdown</button>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
'</div>'
$(dropdownHTML).appendTo('#qunit-fixture')
var $dropdown = $('#qunit-fixture').find('[data-toggle="dropdown"]').bootstrapDropdown()
$dropdown.show()
assert.ok(!$dropdown.parent('.dropdown').hasClass('show'))
})
QUnit.test('should not hide dropdown via hide method if target is disabled via attribute', function (assert) {
assert.expect(1)
var dropdownHTML =
'<div class="dropdown show">' +
' <button disabled href="#" class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
'</div>'
$(dropdownHTML).appendTo('#qunit-fixture')
var $dropdown = $('#qunit-fixture').find('[data-toggle="dropdown"]').bootstrapDropdown()
$dropdown.hide()
assert.ok($dropdown.parent('.dropdown').hasClass('show'))
})
QUnit.test('should not hide dropdown via hide method if target is disabled via class', function (assert) {
assert.expect(1)
var dropdownHTML =
'<div class="dropdown show">' +
' <button href="#" class="btn dropdown-toggle disabled" data-toggle="dropdown">Dropdown</button>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
'</div>'
$(dropdownHTML).appendTo('#qunit-fixture')
var $dropdown = $('#qunit-fixture').find('[data-toggle="dropdown"]').bootstrapDropdown()
$dropdown.hide()
assert.ok($dropdown.parent('.dropdown').hasClass('show'))
})
})

2
site/docs/4.1/components/dropdowns.md
View File

@ -839,6 +839,8 @@ Note when `boundary` is set to any value other than `'scrollParent'`, the style
| Method | Description |
| --- | --- |
| `$().dropdown('toggle')` | Toggles the dropdown menu of a given navbar or tabbed navigation. |
| `$().dropdown('show')` | Shows the dropdown menu of a given navbar or tabbed navigation. |
| `$().dropdown('hide')` | Hides the dropdown menu of a given navbar or tabbed navigation. |
| `$().dropdown('update')` | Updates the position of an element's dropdown. |
| `$().dropdown('dispose')` | Destroys an element's dropdown. |