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1 | 'use strict';
exports.__esModule = true;
exports['default'] = bufferTime;
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
function _inherits(subClass, superClass) { Iif (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); Eif (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
function _classCallCheck(instance, Constructor) { Iif (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
var _Subscriber2 = require('../Subscriber');
var _Subscriber3 = _interopRequireDefault(_Subscriber2);
var _schedulersNextTick = require('../schedulers/nextTick');
var _schedulersNextTick2 = _interopRequireDefault(_schedulersNextTick);
/**
* buffers values from the source for a specific time period. Optionally allows new buffers to be set up at an interval.
* @param {number} the amount of time to fill each buffer for before emitting them and clearing them.
* @param {number} [bufferCreationInterval] the interval at which to start new buffers.
* @param {Scheduler} [scheduler] (optional, defaults to `nextTick` scheduler) The scheduler on which to schedule the
* intervals that determine buffer boundaries.
* @returns {Observable<T[]>} an observable of arrays of buffered values.
*/
function bufferTime(bufferTimeSpan) {
var bufferCreationInterval = arguments.length <= 1 || arguments[1] === undefined ? null : arguments[1];
var scheduler = arguments.length <= 2 || arguments[2] === undefined ? _schedulersNextTick2['default'] : arguments[2];
return this.lift(new BufferTimeOperator(bufferTimeSpan, bufferCreationInterval, scheduler));
}
var BufferTimeOperator = (function () {
function BufferTimeOperator(bufferTimeSpan, bufferCreationInterval, scheduler) {
_classCallCheck(this, BufferTimeOperator);
this.bufferTimeSpan = bufferTimeSpan;
this.bufferCreationInterval = bufferCreationInterval;
this.scheduler = scheduler;
}
BufferTimeOperator.prototype.call = function call(subscriber) {
return new BufferTimeSubscriber(subscriber, this.bufferTimeSpan, this.bufferCreationInterval, this.scheduler);
};
return BufferTimeOperator;
})();
var BufferTimeSubscriber = (function (_Subscriber) {
_inherits(BufferTimeSubscriber, _Subscriber);
function BufferTimeSubscriber(destination, bufferTimeSpan, bufferCreationInterval, scheduler) {
_classCallCheck(this, BufferTimeSubscriber);
_Subscriber.call(this, destination);
this.bufferTimeSpan = bufferTimeSpan;
this.bufferCreationInterval = bufferCreationInterval;
this.scheduler = scheduler;
this.buffers = [];
var buffer = this.openBuffer();
if (bufferCreationInterval !== null && bufferCreationInterval >= 0) {
var closeState = { subscriber: this, buffer: buffer };
var creationState = { bufferTimeSpan: bufferTimeSpan, bufferCreationInterval: bufferCreationInterval, subscriber: this, scheduler: scheduler };
this.add(scheduler.schedule(dispatchBufferClose, bufferTimeSpan, closeState));
this.add(scheduler.schedule(dispatchBufferCreation, bufferCreationInterval, creationState));
} else {
var timeSpanOnlyState = { subscriber: this, buffer: buffer, bufferTimeSpan: bufferTimeSpan };
this.add(scheduler.schedule(dispatchBufferTimeSpanOnly, bufferTimeSpan, timeSpanOnlyState));
}
}
BufferTimeSubscriber.prototype._next = function _next(value) {
var buffers = this.buffers;
var len = buffers.length;
for (var i = 0; i < len; i++) {
buffers[i].push(value);
}
};
BufferTimeSubscriber.prototype._error = function _error(err) {
this.buffers.length = 0;
this.destination.error(err);
};
BufferTimeSubscriber.prototype._complete = function _complete() {
var buffers = this.buffers;
while (buffers.length > 0) {
this.destination.next(buffers.shift());
}
this.destination.complete();
};
BufferTimeSubscriber.prototype.openBuffer = function openBuffer() {
var buffer = [];
this.buffers.push(buffer);
return buffer;
};
BufferTimeSubscriber.prototype.closeBuffer = function closeBuffer(buffer) {
this.destination.next(buffer);
var buffers = this.buffers;
buffers.splice(buffers.indexOf(buffer), 1);
};
return BufferTimeSubscriber;
})(_Subscriber3['default']);
function dispatchBufferTimeSpanOnly(state) {
var subscriber = state.subscriber;
var prevBuffer = state.buffer;
Eif (prevBuffer) {
subscriber.closeBuffer(prevBuffer);
}
state.buffer = subscriber.openBuffer();
Eif (!subscriber.isUnsubscribed) {
this.schedule(state, state.bufferTimeSpan);
}
}
function dispatchBufferCreation(state) {
var bufferCreationInterval = state.bufferCreationInterval;
var bufferTimeSpan = state.bufferTimeSpan;
var subscriber = state.subscriber;
var scheduler = state.scheduler;
var buffer = subscriber.openBuffer();
var action = this;
Eif (!subscriber.isUnsubscribed) {
action.add(scheduler.schedule(dispatchBufferClose, bufferTimeSpan, { subscriber: subscriber, buffer: buffer }));
action.schedule(state, bufferCreationInterval);
}
}
function dispatchBufferClose(_ref) {
var subscriber = _ref.subscriber;
var buffer = _ref.buffer;
subscriber.closeBuffer(buffer);
}
module.exports = exports['default']; |