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mw.echo.ui.ActionMenuPopupWidget.js
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mw.echo.ui.ActionMenuPopupWidget.js
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/**
* Action menu popup widget for echo items.
*
* We don't currently have anything that properly answers the complete
* design for our popup menus in OOUI, so this widget serves two purposes:
* 1. The MenuSelectWidget is intended to deliver a menu that relates
* directly to its anchor, so its sizing is dictated by whatever anchors
* it. This is not what we require, so we have to override the 'click' event
* to reset the width of the menu.
* 2. It abstracts the behavior of the item menus for easier management
* in the item widget itself (which is fairly large)
*
* @class
* @extends OO.ui.ButtonWidget
*
* @constructor
* @param {Object} [config={}]
* @param {jQuery} [config.$overlay] A jQuery element functioning as an overlay
* for popups.
* @param {Object} [config.horizontalPosition='auto'] How to position the menu, see OO.ui.FloatableElement.
* By default, 'start' will be tried first, and if that doesn't fit, 'end' will be used.
*/
mw.echo.ui.ActionMenuPopupWidget = function MwEchoUiActionMenuPopupWidget( config ) {
config = config || {};
// Parent constructor
mw.echo.ui.ActionMenuPopupWidget.super.call( this, config );
this.$overlay = config.$overlay || this.$element;
// Menu
this.customMenuPosition = ( config.horizontalPosition || 'auto' ) !== 'auto';
this.menu = new OO.ui.MenuSelectWidget( {
$floatableContainer: this.$element,
horizontalPosition: this.customMenuPosition ? config.horizontalPosition : 'start',
classes: [ 'mw-echo-ui-actionMenuPopupWidget-menu' ],
widget: this
} );
this.$overlay.append( this.menu.$element );
// Events
this.connect( this, { click: 'onAction' } );
this.getMenu().connect( this, {
remove: 'decideToggle',
add: 'decideToggle',
clear: 'decideToggle'
} );
// Initialization
this.$element
.addClass( 'mw-echo-ui-actionMenuPopupWidget' );
};
/* Setup */
OO.inheritClass( mw.echo.ui.ActionMenuPopupWidget, OO.ui.ButtonWidget );
/**
* Handle the button action being triggered.
*
* @private
*/
mw.echo.ui.ActionMenuPopupWidget.prototype.onAction = function () {
// HACK: If config.horizontalPosition isn't set, first try 'start', then 'end'
if ( !this.customMenuPosition ) {
this.menu.setHorizontalPosition( 'start' );
}
this.menu.toggle();
if ( !this.customMenuPosition && this.menu.isClipped() ) {
this.menu.setHorizontalPosition( 'end' );
}
};
/**
* Decide whether the menu should be visible, based on whether it is
* empty or not.
*/
mw.echo.ui.ActionMenuPopupWidget.prototype.decideToggle = function () {
this.toggle( !this.getMenu().isEmpty() );
};
/**
* Get the widget's action menu
*
* @return {OO.ui.MenuSelectWidget} Menu
*/
mw.echo.ui.ActionMenuPopupWidget.prototype.getMenu = function () {
return this.menu;
};

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