/**
* Dropdown
* Provides some simple logic to create simple dropdown menus.
+ * @extends {Component}
*/
class DropDown {
- constructor(elem) {
- this.container = elem;
- this.menu = elem.querySelector('.dropdown-menu, [dropdown-menu]');
- this.moveMenu = elem.hasAttribute('dropdown-move-menu');
- this.toggle = elem.querySelector('[dropdown-toggle]');
+ setup() {
+ this.container = this.$el;
+ this.menu = this.$refs.menu;
+ this.toggle = this.$refs.toggle;
+ this.moveMenu = this.$opts.moveMenu;
+ this.bubbleEscapes = this.$opts.bubbleEscapes === 'true';
+
+ this.direction = (document.dir === 'rtl') ? 'right' : 'left';
this.body = document.body;
this.showing = false;
this.setupListeners();
+ this.hide = this.hide.bind(this);
}
show(event = null) {
this.rect = this.menu.getBoundingClientRect();
this.body.appendChild(this.menu);
this.menu.style.position = 'fixed';
- this.menu.style.left = `${this.rect.left}px`;
+ if (this.direction === 'right') {
+ this.menu.style.right = `${(this.rect.right - this.rect.width)}px`;
+ } else {
+ this.menu.style.left = `${this.rect.left}px`;
+ }
this.menu.style.top = `${this.rect.top}px`;
this.menu.style.width = `${this.rect.width}px`;
}
this.toggle.setAttribute('aria-expanded', 'false');
if (this.moveMenu) {
this.menu.style.position = '';
- this.menu.style.left = '';
+ this.menu.style[this.direction] = '';
this.menu.style.top = '';
this.menu.style.width = '';
this.container.appendChild(this.menu);
} else if (event.key === 'Escape') {
this.hide();
this.toggle.focus();
- event.stopPropagation();
+ if (!this.bubbleEscapes) {
+ event.stopPropagation();
+ }
}
};
this.container.addEventListener('keydown', keyboardNavigation);