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2020-01-03 17:05:24 +08:00

90 lines
3.1 KiB
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;
};
var __metadata = (this && this.__metadata) || function (k, v) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
import { Superview, Property } from "../ui/view";
import { Stack } from "./layouts";
import { layoutConfig } from "../util/layoutconfig";
export class SlideItem extends Stack {
}
__decorate([
Property,
__metadata("design:type", String)
], SlideItem.prototype, "identifier", void 0);
export class Slider extends Superview {
constructor() {
super(...arguments);
this.cachedViews = new Map;
this.ignoreDirtyCallOnce = false;
this.itemCount = 0;
this.batchCount = 3;
}
allSubviews() {
return this.cachedViews.values();
}
getItem(itemIdx) {
let view = this.cachedViews.get(`${itemIdx}`);
if (view === undefined) {
view = this.renderPage(itemIdx);
view.superview = this;
this.cachedViews.set(`${itemIdx}`, view);
}
return view;
}
isDirty() {
if (this.ignoreDirtyCallOnce) {
this.ignoreDirtyCallOnce = false;
//Ignore the dirty call once.
return false;
}
return super.isDirty();
}
renderBunchedItems(start, length) {
this.ignoreDirtyCallOnce = true;
return new Array(Math.min(length, this.itemCount - start)).fill(0).map((_, idx) => {
const slideItem = this.getItem(start + idx);
return slideItem.toModel();
});
}
slidePage(context, page, smooth = false) {
return this.nativeChannel(context, "slidePage")({ page, smooth });
}
getSlidedPage(context) {
return this.nativeChannel(context, "getSlidedPage")();
}
}
__decorate([
Property,
__metadata("design:type", Object)
], Slider.prototype, "itemCount", void 0);
__decorate([
Property,
__metadata("design:type", Function)
], Slider.prototype, "renderPage", void 0);
__decorate([
Property,
__metadata("design:type", Object)
], Slider.prototype, "batchCount", void 0);
__decorate([
Property,
__metadata("design:type", Function)
], Slider.prototype, "onPageSlided", void 0);
export function slideItem(item) {
return (new SlideItem).also((it) => {
it.layoutConfig = layoutConfig().fit();
it.addChild(item);
});
}
export function slider(config) {
const ret = new Slider;
for (let key in config) {
Reflect.set(ret, key, Reflect.get(config, key, config), ret);
}
return ret;
}