@cascade/pagination
Version:
Array and Service Pagination powered by Cascade.
148 lines • 4.85 kB
JavaScript
"use strict";
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);
};
Object.defineProperty(exports, "__esModule", { value: true });
const cascade_1 = require("cascade");
class Pagination {
constructor(refreshData) {
this.pageSize = 20;
this.page = 0;
this.activeRows = [];
this.allRows = [];
this.rowCount = 0;
this.error = false;
this.loaded = false;
this.refreshing = false;
this.lockRefresh = true;
this.runCount = 0;
this.initialized = false;
this.infinite = false;
this.length = 0;
this.refreshData = refreshData;
}
get dataComputed() {
this.pageSize;
this.page;
if (this.initialized && !this.lockRefresh) {
return this.run();
}
else {
throw new Error('Pagination did not run');
}
}
init() {
this.initialized = true;
return this.run();
}
async run() {
this.runCount++;
var runID = this.runCount;
this.lockRefresh = false;
var pageSize = this.pageSize;
var offset = this.infinite ?
this.length :
Math.abs(this.page * pageSize);
this.refreshing = true;
try {
let result = await this.refreshData(offset, pageSize);
if (runID == this.runCount) {
let data = result.data || [];
this.activeRows = data;
if (this.infinite) {
this.allRows = this.allRows.concat(data);
this.length += data.length;
}
this.rowCount = result.count || 0;
this.error = false;
this.loaded = true;
}
return result;
}
catch (e) {
if (runID == this.runCount) {
this.error = true;
this.loaded = false;
}
throw e;
}
finally {
if (runID == this.runCount) {
this.refreshing = false;
}
}
}
reset() {
this.activeRows = [];
this.allRows = [];
this.page = 0;
this.rowCount = 0;
this.length = 0;
this.runCount = 0;
this.loaded = false;
this.initialized = true;
return this.run();
}
clear() {
var lockRefresh = this.lockRefresh;
this.page = 0;
this.rowCount = 0;
this.activeRows = [];
this.allRows = [];
this.length = 0;
this.initialized = false;
this.lockRefresh = lockRefresh;
this.loaded = false;
}
nextPage() {
this.page++;
}
itemDeleted(count = 1) {
this.length -= count;
}
}
__decorate([
cascade_1.observable,
__metadata("design:type", Number)
], Pagination.prototype, "pageSize", void 0);
__decorate([
cascade_1.observable,
__metadata("design:type", Number)
], Pagination.prototype, "page", void 0);
__decorate([
cascade_1.observable,
__metadata("design:type", Array)
], Pagination.prototype, "activeRows", void 0);
__decorate([
cascade_1.observable,
__metadata("design:type", Array)
], Pagination.prototype, "allRows", void 0);
__decorate([
cascade_1.observable,
__metadata("design:type", Number)
], Pagination.prototype, "rowCount", void 0);
__decorate([
cascade_1.observable,
__metadata("design:type", Boolean)
], Pagination.prototype, "error", void 0);
__decorate([
cascade_1.observable,
__metadata("design:type", Boolean)
], Pagination.prototype, "loaded", void 0);
__decorate([
cascade_1.observable,
__metadata("design:type", Boolean)
], Pagination.prototype, "refreshing", void 0);
__decorate([
cascade_1.observable,
__metadata("design:type", Object),
__metadata("design:paramtypes", [])
], Pagination.prototype, "dataComputed", null);
exports.default = Pagination;
//# sourceMappingURL=Pagination.js.map