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odoo.define('web.DropdownMenuItem', function (require) {
"use strict";
const { useListener } = require('web.custom_hooks');
const { Component, hooks } = owl;
const { useExternalListener, useRef, useState } = hooks;
/**
* Dropdown menu item
*
* Generic component instantiated by a dropdown menu (@see DropdownMenu) in
* the absence of `Component` and `props` keys in a given item object.
*
* In its simplest form, a dropdown menu item will be given a description (optional,
* but highly recommended) and will trigger a 'select-item' when clicked on.
* Additionaly it can receive the following props:
* - isActive: will add a `checked` symbol on the left side of the item
* - removable: will add a `remove` trash icon on the right side of the item.
* when clicked, will trigger a 'remove-item' event.
* - options: will change the behaviour of the item ; instead of triggering
* an event, the item will act as a nested dropdown menu and display
* its given options. These will have the same definition as another
* dropdown item but cannot have options of their own.
*
* It is recommended to extend this class when defining a Component which will
* be put inside of a dropdown menu (@see CustomFilterItem as example).
* @extends Component
*/
class DropdownMenuItem extends Component {
constructor() {
super(...arguments);
this.canBeOpened = Boolean(this.props.options && this.props.options.length);
this.fallbackFocusRef = useRef('fallback-focus');
this.state = useState({ open: false });
useExternalListener(window, 'click', this._onWindowClick);
useListener('keydown', this._onKeydown);
}
//---------------------------------------------------------------------
// Handlers
//---------------------------------------------------------------------
/**
* @private
* @param {KeyboardEvent} ev
*/
_onKeydown(ev) {
if (['INPUT', 'TEXTAREA'].includes(document.activeElement.tagName)) {
return;
}
switch (ev.key) {
case 'ArrowLeft':
if (this.canBeOpened && this.state.open) {
ev.preventDefault();
if (this.fallbackFocusRef.el) {
this.fallbackFocusRef.el.focus();
}
this.state.open = false;
}
break;
case 'ArrowRight':
if (this.canBeOpened && !this.state.open) {
ev.preventDefault();
this.state.open = true;
}
break;
case 'Escape':
ev.target.blur();
if (this.canBeOpened && this.state.open) {
ev.preventDefault();
ev.stopPropagation();
if (this.fallbackFocusRef.el) {
this.fallbackFocusRef.el.focus();
}
this.state.open = false;
}
}
}
/**
* @private
* @param {MouseEvent} ev
*/
_onWindowClick(ev) {
if (
this.state.open &&
!this.el.contains(ev.target) &&
!this.el.contains(document.activeElement)
) {
this.state.open = false;
}
}
}
DropdownMenuItem.template = 'web.DropdownMenuItem';
return DropdownMenuItem;
});
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