shopperman
Version:
shopping cart ui for shopify stores
62 lines • 2.52 kB
JavaScript
;
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
Object.defineProperty(exports, "__esModule", { value: true });
var mobx_1 = require("mobx");
var toolbox_1 = require("../toolbox");
var scrollEvents = ["scroll", "resize"];
var ScrollTracker = /** @class */ (function () {
function ScrollTracker() {
var _this = this;
this.scroll = 0;
this.tracking = false;
this.handleScrollUpdate = function () {
_this.updateScroll();
};
}
ScrollTracker.prototype.updateScroll = function () {
if (this.tracking) {
var scroll_1 = toolbox_1.getScrollTop();
this.setScroll(scroll_1);
}
};
ScrollTracker.prototype.setScroll = function (scroll) {
this.scroll = scroll;
};
ScrollTracker.prototype.setTracking = function (tracking) {
this.tracking = tracking;
this.updateScroll();
};
ScrollTracker.prototype.mount = function () {
for (var _i = 0, scrollEvents_1 = scrollEvents; _i < scrollEvents_1.length; _i++) {
var event_1 = scrollEvents_1[_i];
window.addEventListener(event_1, this.handleScrollUpdate);
}
this.handleScrollUpdate();
};
ScrollTracker.prototype.unmount = function () {
for (var _i = 0, scrollEvents_2 = scrollEvents; _i < scrollEvents_2.length; _i++) {
var event_2 = scrollEvents_2[_i];
window.removeEventListener(event_2, this.handleScrollUpdate);
}
};
__decorate([
mobx_1.observable
], ScrollTracker.prototype, "scroll", void 0);
__decorate([
mobx_1.observable
], ScrollTracker.prototype, "tracking", void 0);
__decorate([
mobx_1.action
], ScrollTracker.prototype, "setScroll", null);
__decorate([
mobx_1.action
], ScrollTracker.prototype, "setTracking", null);
return ScrollTracker;
}());
exports.ScrollTracker = ScrollTracker;
//# sourceMappingURL=scroll-tracker.js.map