vscroll/dist/esm5/classes/state/cycle.js

Virtual scroll engine

import { Reactive } from '../reactive';
var InnerLoopModel = /** @class */ (function () {
  function InnerLoopModel(total) {
    this.total = total;
    this.isInitial = false;
    this.busy = new Reactive(false);
  }
  Object.defineProperty(InnerLoopModel.prototype, "first", {
    get: function () {
      return this.count === 0;
    },
    enumerable: false,
    configurable: true
  });
  InnerLoopModel.prototype.done = function () {
    this.isInitial = false;
    this.count++;
    this.total++;
    this.busy.set(false);
  };
  InnerLoopModel.prototype.start = function () {
    this.busy.set(true);
  };
  InnerLoopModel.prototype.dispose = function () {
    this.busy.dispose();
  };
  return InnerLoopModel;
}());
var WorkflowCycleModel = /** @class */ (function () {
  function WorkflowCycleModel(instanceIndex, cycle) {
    var cycleCount = cycle ? cycle.count : 1;
    var loopCount = cycle ? cycle.innerLoop.count : 0;
    this.instanceIndex = instanceIndex;
    this.innerLoop = new InnerLoopModel(loopCount);
    this.interrupter = null;
    this.busy = new Reactive(false);
    this.end(cycleCount);
  }
  Object.defineProperty(WorkflowCycleModel.prototype, "loopId", {
    get: function () {
      return "".concat(this.instanceIndex, "-").concat(this.count, "-").concat(this.innerLoop.total);
    },
    enumerable: false,
    configurable: true
  });
  Object.defineProperty(WorkflowCycleModel.prototype, "loopIdNext", {
    get: function () {
      return "".concat(this.instanceIndex, "-").concat(this.count, "-").concat(this.innerLoop.total + 1);
    },
    enumerable: false,
    configurable: true
  });
  WorkflowCycleModel.prototype.start = function (isInitial, initiator) {
    this.isInitial = isInitial;
    this.initiator = initiator;
    this.innerLoop.isInitial = isInitial;
    this.innerLoop.count = 0;
    this.interrupter = null;
    this.busy.set(true);
  };
  WorkflowCycleModel.prototype.end = function (count) {
    this.count = count;
    this.isInitial = false;
    this.busy.set(false);
  };
  WorkflowCycleModel.prototype.dispose = function (forever) {
    if (forever) {
      // otherwise the value will be persisted during re-instantiation
      this.busy.dispose();
    }
    this.innerLoop.dispose();
  };
  return WorkflowCycleModel;
}());
export { WorkflowCycleModel };
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