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Mini Shell
Mini Shell
// v-b-hover directive
import { EVENT_OPTIONS_NO_CAPTURE } from '../../constants/events';
import { isBrowser } from '../../utils/env';
import { eventOnOff } from '../../utils/events';
import { isFunction } from '../../utils/inspect'; // --- Constants ---
var PROP = '__BV_hover_handler__';
var MOUSEENTER = 'mouseenter';
var MOUSELEAVE = 'mouseleave'; // --- Utility methods ---
var createListener = function createListener(handler) {
var listener = function listener(evt) {
handler(evt.type === MOUSEENTER, evt);
};
listener.fn = handler;
return listener;
};
var updateListeners = function updateListeners(on, el, listener) {
eventOnOff(on, el, MOUSEENTER, listener, EVENT_OPTIONS_NO_CAPTURE);
eventOnOff(on, el, MOUSELEAVE, listener, EVENT_OPTIONS_NO_CAPTURE);
}; // --- Directive bind/unbind/update handler ---
var directive = function directive(el, _ref) {
var _ref$value = _ref.value,
handler = _ref$value === void 0 ? null : _ref$value;
if (isBrowser) {
var listener = el[PROP];
var hasListener = isFunction(listener);
var handlerChanged = !(hasListener && listener.fn === handler);
if (hasListener && handlerChanged) {
updateListeners(false, el, listener);
delete el[PROP];
}
if (isFunction(handler) && handlerChanged) {
el[PROP] = createListener(handler);
updateListeners(true, el, el[PROP]);
}
}
}; // VBHover directive
export var VBHover = {
bind: directive,
componentUpdated: directive,
unbind: function unbind(el) {
directive(el, {
value: null
});
}
};
Zerion Mini Shell 1.0