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Add centered dropdown and dropup options

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This commit is contained in:
Mark Otto
2022-02-25 08:53:17 -08:00
committed by Mark Otto
parent efc5914667
commit c0f30366ac
3 changed files with 49 additions and 1 deletions
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12
js/src/dropdown.js
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@@ -48,6 +48,8 @@ const CLASS_NAME_SHOW = 'show'
const CLASS_NAME_DROPUP = 'dropup'
const CLASS_NAME_DROPEND = 'dropend'
const CLASS_NAME_DROPSTART = 'dropstart'
const CLASS_NAME_DROPUP_CENTER = 'dropup-center'
const CLASS_NAME_DROPDOWN_CENTER = 'dropdown-center'
const SELECTOR_DATA_TOGGLE = '[data-bs-toggle="dropdown"]:not(.disabled):not(:disabled)'
const SELECTOR_DATA_TOGGLE_SHOWN = `${SELECTOR_DATA_TOGGLE}.${CLASS_NAME_SHOW}`
@@ -62,6 +64,8 @@ const PLACEMENT_BOTTOM = isRTL() ? 'bottom-end' : 'bottom-start'
const PLACEMENT_BOTTOMEND = isRTL() ? 'bottom-start' : 'bottom-end'
const PLACEMENT_RIGHT = isRTL() ? 'left-start' : 'right-start'
const PLACEMENT_LEFT = isRTL() ? 'right-start' : 'left-start'
const PLACEMENT_TOPCENTER = 'top'
const PLACEMENT_BOTTOMCENTER = 'bottom'
const Default = {
offset: [0, 2],
@@ -248,6 +252,14 @@ class Dropdown extends BaseComponent {
return PLACEMENT_LEFT
}
if (parentDropdown.classList.contains(CLASS_NAME_DROPUP_CENTER)) {
return PLACEMENT_TOPCENTER
}
if (parentDropdown.classList.contains(CLASS_NAME_DROPDOWN_CENTER)) {
return PLACEMENT_BOTTOMCENTER
}
// We need to trim the value because custom properties can also include spaces
const isEnd = getComputedStyle(this._menu).getPropertyValue('--bs-position').trim() === 'end'