1 | /** PURE_IMPORTS_START tslib,_scheduler_async,_Subscriber,_util_isScheduler PURE_IMPORTS_END */
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2 | import * as tslib_1 from "tslib";
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3 | import { async } from '../scheduler/async';
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4 | import { Subscriber } from '../Subscriber';
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5 | import { isScheduler } from '../util/isScheduler';
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6 | export function bufferTime(bufferTimeSpan) {
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7 | var length = arguments.length;
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8 | var scheduler = async;
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9 | if (isScheduler(arguments[arguments.length - 1])) {
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10 | scheduler = arguments[arguments.length - 1];
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11 | length--;
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12 | }
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13 | var bufferCreationInterval = null;
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14 | if (length >= 2) {
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15 | bufferCreationInterval = arguments[1];
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16 | }
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17 | var maxBufferSize = Number.POSITIVE_INFINITY;
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18 | if (length >= 3) {
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19 | maxBufferSize = arguments[2];
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20 | }
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21 | return function bufferTimeOperatorFunction(source) {
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22 | return source.lift(new BufferTimeOperator(bufferTimeSpan, bufferCreationInterval, maxBufferSize, scheduler));
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23 | };
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24 | }
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25 | var BufferTimeOperator = /*@__PURE__*/ (function () {
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26 | function BufferTimeOperator(bufferTimeSpan, bufferCreationInterval, maxBufferSize, scheduler) {
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27 | this.bufferTimeSpan = bufferTimeSpan;
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28 | this.bufferCreationInterval = bufferCreationInterval;
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29 | this.maxBufferSize = maxBufferSize;
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30 | this.scheduler = scheduler;
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31 | }
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32 | BufferTimeOperator.prototype.call = function (subscriber, source) {
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33 | return source.subscribe(new BufferTimeSubscriber(subscriber, this.bufferTimeSpan, this.bufferCreationInterval, this.maxBufferSize, this.scheduler));
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34 | };
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35 | return BufferTimeOperator;
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36 | }());
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37 | var Context = /*@__PURE__*/ (function () {
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38 | function Context() {
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39 | this.buffer = [];
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40 | }
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41 | return Context;
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42 | }());
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43 | var BufferTimeSubscriber = /*@__PURE__*/ (function (_super) {
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44 | tslib_1.__extends(BufferTimeSubscriber, _super);
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45 | function BufferTimeSubscriber(destination, bufferTimeSpan, bufferCreationInterval, maxBufferSize, scheduler) {
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46 | var _this = _super.call(this, destination) || this;
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47 | _this.bufferTimeSpan = bufferTimeSpan;
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48 | _this.bufferCreationInterval = bufferCreationInterval;
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49 | _this.maxBufferSize = maxBufferSize;
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50 | _this.scheduler = scheduler;
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51 | _this.contexts = [];
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52 | var context = _this.openContext();
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53 | _this.timespanOnly = bufferCreationInterval == null || bufferCreationInterval < 0;
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54 | if (_this.timespanOnly) {
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55 | var timeSpanOnlyState = { subscriber: _this, context: context, bufferTimeSpan: bufferTimeSpan };
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56 | _this.add(context.closeAction = scheduler.schedule(dispatchBufferTimeSpanOnly, bufferTimeSpan, timeSpanOnlyState));
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57 | }
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58 | else {
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59 | var closeState = { subscriber: _this, context: context };
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60 | var creationState = { bufferTimeSpan: bufferTimeSpan, bufferCreationInterval: bufferCreationInterval, subscriber: _this, scheduler: scheduler };
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61 | _this.add(context.closeAction = scheduler.schedule(dispatchBufferClose, bufferTimeSpan, closeState));
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62 | _this.add(scheduler.schedule(dispatchBufferCreation, bufferCreationInterval, creationState));
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63 | }
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64 | return _this;
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65 | }
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66 | BufferTimeSubscriber.prototype._next = function (value) {
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67 | var contexts = this.contexts;
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68 | var len = contexts.length;
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69 | var filledBufferContext;
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70 | for (var i = 0; i < len; i++) {
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71 | var context_1 = contexts[i];
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72 | var buffer = context_1.buffer;
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73 | buffer.push(value);
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74 | if (buffer.length == this.maxBufferSize) {
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75 | filledBufferContext = context_1;
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76 | }
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77 | }
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78 | if (filledBufferContext) {
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79 | this.onBufferFull(filledBufferContext);
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80 | }
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81 | };
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82 | BufferTimeSubscriber.prototype._error = function (err) {
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83 | this.contexts.length = 0;
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84 | _super.prototype._error.call(this, err);
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85 | };
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86 | BufferTimeSubscriber.prototype._complete = function () {
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87 | var _a = this, contexts = _a.contexts, destination = _a.destination;
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88 | while (contexts.length > 0) {
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89 | var context_2 = contexts.shift();
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90 | destination.next(context_2.buffer);
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91 | }
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92 | _super.prototype._complete.call(this);
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93 | };
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94 | BufferTimeSubscriber.prototype._unsubscribe = function () {
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95 | this.contexts = null;
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96 | };
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97 | BufferTimeSubscriber.prototype.onBufferFull = function (context) {
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98 | this.closeContext(context);
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99 | var closeAction = context.closeAction;
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100 | closeAction.unsubscribe();
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101 | this.remove(closeAction);
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102 | if (!this.closed && this.timespanOnly) {
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103 | context = this.openContext();
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104 | var bufferTimeSpan = this.bufferTimeSpan;
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105 | var timeSpanOnlyState = { subscriber: this, context: context, bufferTimeSpan: bufferTimeSpan };
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106 | this.add(context.closeAction = this.scheduler.schedule(dispatchBufferTimeSpanOnly, bufferTimeSpan, timeSpanOnlyState));
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107 | }
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108 | };
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109 | BufferTimeSubscriber.prototype.openContext = function () {
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110 | var context = new Context();
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111 | this.contexts.push(context);
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112 | return context;
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113 | };
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114 | BufferTimeSubscriber.prototype.closeContext = function (context) {
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115 | this.destination.next(context.buffer);
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116 | var contexts = this.contexts;
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117 | var spliceIndex = contexts ? contexts.indexOf(context) : -1;
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118 | if (spliceIndex >= 0) {
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119 | contexts.splice(contexts.indexOf(context), 1);
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120 | }
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121 | };
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122 | return BufferTimeSubscriber;
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123 | }(Subscriber));
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124 | function dispatchBufferTimeSpanOnly(state) {
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125 | var subscriber = state.subscriber;
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126 | var prevContext = state.context;
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127 | if (prevContext) {
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128 | subscriber.closeContext(prevContext);
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129 | }
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130 | if (!subscriber.closed) {
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131 | state.context = subscriber.openContext();
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132 | state.context.closeAction = this.schedule(state, state.bufferTimeSpan);
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133 | }
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134 | }
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135 | function dispatchBufferCreation(state) {
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136 | var bufferCreationInterval = state.bufferCreationInterval, bufferTimeSpan = state.bufferTimeSpan, subscriber = state.subscriber, scheduler = state.scheduler;
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137 | var context = subscriber.openContext();
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138 | var action = this;
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139 | if (!subscriber.closed) {
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140 | subscriber.add(context.closeAction = scheduler.schedule(dispatchBufferClose, bufferTimeSpan, { subscriber: subscriber, context: context }));
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141 | action.schedule(state, bufferCreationInterval);
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142 | }
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143 | }
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144 | function dispatchBufferClose(arg) {
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145 | var subscriber = arg.subscriber, context = arg.context;
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146 | subscriber.closeContext(context);
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147 | }
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148 | //# sourceMappingURL=bufferTime.js.map
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