1 |
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2 |
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3 | ;(function (factory) {
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4 | var objectTypes = {
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5 | 'function': true,
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6 | 'object': true
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7 | };
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8 |
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9 | function checkGlobal(value) {
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10 | return (value && value.Object === Object) ? value : null;
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11 | }
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12 |
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13 | var freeExports = (objectTypes[typeof exports] && exports && !exports.nodeType) ? exports : null;
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14 | var freeModule = (objectTypes[typeof module] && module && !module.nodeType) ? module : null;
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15 | var freeGlobal = checkGlobal(freeExports && freeModule && typeof global === 'object' && global);
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16 | var freeSelf = checkGlobal(objectTypes[typeof self] && self);
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17 | var freeWindow = checkGlobal(objectTypes[typeof window] && window);
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18 | var moduleExports = (freeModule && freeModule.exports === freeExports) ? freeExports : null;
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19 | var thisGlobal = checkGlobal(objectTypes[typeof this] && this);
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20 | var root = freeGlobal || ((freeWindow !== (thisGlobal && thisGlobal.window)) && freeWindow) || freeSelf || thisGlobal || Function('return this')();
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21 |
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22 |
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23 | if (typeof define === 'function' && define.amd) {
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24 | define(['./rx.binding', 'exports'], function (Rx, exports) {
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25 | root.Rx = factory(root, exports, Rx);
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26 | return root.Rx;
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27 | });
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28 | } else if (typeof module === 'object' && module && module.exports === freeExports) {
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29 | module.exports = factory(root, module.exports, require('./rx'));
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30 | } else {
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31 | root.Rx = factory(root, {}, root.Rx);
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32 | }
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33 | }.call(this, function (root, exp, Rx, undefined) {
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34 |
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35 |
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36 | var Observable = Rx.Observable,
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37 | observableFromPromise = Observable.fromPromise,
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38 | observableThrow = Observable.throwError,
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39 | AnonymousObservable = Rx.AnonymousObservable,
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40 | ObservableBase = Rx.ObservableBase,
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41 | AsyncSubject = Rx.AsyncSubject,
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42 | disposableCreate = Rx.Disposable.create,
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43 | CompositeDisposable = Rx.CompositeDisposable,
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44 | immediateScheduler = Rx.Scheduler.immediate,
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45 | defaultScheduler = Rx.Scheduler['default'],
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46 | inherits = Rx.internals.inherits,
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47 | isScheduler = Rx.Scheduler.isScheduler,
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48 | isPromise = Rx.helpers.isPromise,
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49 | isFunction = Rx.helpers.isFunction,
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50 | isIterable = Rx.helpers.isIterable,
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51 | isArrayLike = Rx.helpers.isArrayLike;
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52 |
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53 | var errorObj = {e: {}};
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54 |
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55 | function tryCatcherGen(tryCatchTarget) {
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56 | return function tryCatcher() {
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57 | try {
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58 | return tryCatchTarget.apply(this, arguments);
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59 | } catch (e) {
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60 | errorObj.e = e;
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61 | return errorObj;
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62 | }
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63 | };
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64 | }
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65 |
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66 | var tryCatch = Rx.internals.tryCatch = function tryCatch(fn) {
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67 | if (!isFunction(fn)) { throw new TypeError('fn must be a function'); }
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68 | return tryCatcherGen(fn);
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69 | };
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70 |
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71 | function thrower(e) {
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72 | throw e;
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73 | }
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74 |
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75 | Observable.wrap = function (fn) {
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76 | function createObservable() {
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77 | return Observable.spawn.call(this, fn.apply(this, arguments));
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78 | }
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79 |
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80 | createObservable.__generatorFunction__ = fn;
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81 | return createObservable;
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82 | };
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83 |
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84 | var spawn = Observable.spawn = function () {
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85 | var gen = arguments[0], self = this, args = [];
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86 | for (var i = 1, len = arguments.length; i < len; i++) { args.push(arguments[i]); }
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87 |
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88 | return new AnonymousObservable(function (o) {
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89 | var g = new CompositeDisposable();
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90 |
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91 | if (isFunction(gen)) { gen = gen.apply(self, args); }
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92 | if (!gen || !isFunction(gen.next)) {
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93 | o.onNext(gen);
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94 | return o.onCompleted();
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95 | }
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96 |
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97 | function processGenerator(res) {
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98 | var ret = tryCatch(gen.next).call(gen, res);
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99 | if (ret === errorObj) { return o.onError(ret.e); }
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100 | next(ret);
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101 | }
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102 |
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103 | processGenerator();
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104 |
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105 | function onError(err) {
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106 | var ret = tryCatch(gen.next).call(gen, err);
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107 | if (ret === errorObj) { return o.onError(ret.e); }
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108 | next(ret);
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109 | }
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110 |
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111 | function next(ret) {
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112 | if (ret.done) {
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113 | o.onNext(ret.value);
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114 | o.onCompleted();
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115 | return;
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116 | }
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117 | var obs = toObservable.call(self, ret.value);
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118 | var value = null;
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119 | var hasValue = false;
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120 | if (Observable.isObservable(obs)) {
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121 | g.add(obs.subscribe(function(val) {
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122 | hasValue = true;
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123 | value = val;
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124 | }, onError, function() {
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125 | hasValue && processGenerator(value);
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126 | }));
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127 | } else {
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128 | onError(new TypeError('type not supported'));
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129 | }
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130 | }
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131 |
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132 | return g;
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133 | });
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134 | };
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135 |
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136 | function toObservable(obj) {
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137 | if (!obj) { return obj; }
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138 | if (Observable.isObservable(obj)) { return obj; }
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139 | if (isPromise(obj)) { return Observable.fromPromise(obj); }
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140 | if (isGeneratorFunction(obj) || isGenerator(obj)) { return spawn.call(this, obj); }
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141 | if (isFunction(obj)) { return thunkToObservable.call(this, obj); }
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142 | if (isArrayLike(obj) || isIterable(obj)) { return arrayToObservable.call(this, obj); }
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143 | if (isObject(obj)) {return objectToObservable.call(this, obj);}
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144 | return obj;
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145 | }
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146 |
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147 | function arrayToObservable (obj) {
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148 | return Observable.from(obj).concatMap(function(o) {
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149 | if(Observable.isObservable(o) || isObject(o)) {
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150 | return toObservable.call(null, o);
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151 | } else {
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152 | return Rx.Observable.just(o);
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153 | }
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154 | }).toArray();
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155 | }
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156 |
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157 | function objectToObservable (obj) {
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158 | var results = new obj.constructor(), keys = Object.keys(obj), observables = [];
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159 | for (var i = 0, len = keys.length; i < len; i++) {
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160 | var key = keys[i];
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161 | var observable = toObservable.call(this, obj[key]);
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162 |
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163 | if(observable && Observable.isObservable(observable)) {
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164 | defer(observable, key);
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165 | } else {
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166 | results[key] = obj[key];
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167 | }
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168 | }
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169 |
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170 | return Observable.forkJoin.apply(Observable, observables).map(function() {
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171 | return results;
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172 | });
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173 |
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174 |
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175 | function defer (observable, key) {
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176 | results[key] = undefined;
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177 | observables.push(observable.map(function (next) {
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178 | results[key] = next;
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179 | }));
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180 | }
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181 | }
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182 |
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183 | function thunkToObservable(fn) {
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184 | var self = this;
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185 | return new AnonymousObservable(function (o) {
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186 | fn.call(self, function () {
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187 | var err = arguments[0], res = arguments[1];
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188 | if (err) { return o.onError(err); }
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189 | if (arguments.length > 2) {
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190 | var args = [];
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191 | for (var i = 1, len = arguments.length; i < len; i++) { args.push(arguments[i]); }
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192 | res = args;
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193 | }
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194 | o.onNext(res);
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195 | o.onCompleted();
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196 | });
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197 | });
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198 | }
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199 |
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200 | function isGenerator(obj) {
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201 | return isFunction (obj.next) && isFunction (obj['throw']);
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202 | }
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203 |
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204 | function isGeneratorFunction(obj) {
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205 | var ctor = obj.constructor;
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206 | if (!ctor) { return false; }
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207 | if (ctor.name === 'GeneratorFunction' || ctor.displayName === 'GeneratorFunction') { return true; }
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208 | return isGenerator(ctor.prototype);
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209 | }
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210 |
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211 | function isObject(val) {
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212 | return Object == val.constructor;
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213 | }
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214 |
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215 | |
216 |
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217 |
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218 |
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219 |
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220 |
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221 |
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222 |
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223 |
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224 |
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225 |
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226 |
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227 |
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228 |
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229 |
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230 |
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231 |
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232 | Observable.start = function (func, context, scheduler) {
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233 | return observableToAsync(func, context, scheduler)();
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234 | };
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235 |
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236 | |
237 |
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238 |
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239 |
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240 |
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241 |
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242 |
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243 | var observableToAsync = Observable.toAsync = function (func, context, scheduler) {
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244 | isScheduler(scheduler) || (scheduler = defaultScheduler);
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245 | return function () {
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246 | var args = arguments,
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247 | subject = new AsyncSubject();
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248 |
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249 | scheduler.schedule(null, function () {
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250 | var result;
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251 | try {
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252 | result = func.apply(context, args);
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253 | } catch (e) {
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254 | subject.onError(e);
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255 | return;
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256 | }
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257 | subject.onNext(result);
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258 | subject.onCompleted();
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259 | });
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260 | return subject.asObservable();
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261 | };
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262 | };
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263 |
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264 | function createCbObservable(fn, ctx, selector, args) {
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265 | var o = new AsyncSubject();
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266 |
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267 | args.push(createCbHandler(o, ctx, selector));
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268 | fn.apply(ctx, args);
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269 |
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270 | return o.asObservable();
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271 | }
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272 |
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273 | function createCbHandler(o, ctx, selector) {
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274 | return function handler () {
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275 | var len = arguments.length, results = new Array(len);
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276 | for(var i = 0; i < len; i++) { results[i] = arguments[i]; }
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277 |
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278 | if (isFunction(selector)) {
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279 | results = tryCatch(selector).apply(ctx, results);
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280 | if (results === errorObj) { return o.onError(results.e); }
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281 | o.onNext(results);
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282 | } else {
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283 | if (results.length <= 1) {
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284 | o.onNext(results[0]);
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285 | } else {
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286 | o.onNext(results);
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287 | }
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288 | }
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289 |
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290 | o.onCompleted();
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291 | };
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292 | }
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293 |
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294 |
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295 |
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296 |
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297 |
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298 |
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299 |
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300 |
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301 |
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302 | Observable.fromCallback = function (fn, ctx, selector) {
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303 | return function () {
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304 | typeof ctx === 'undefined' && (ctx = this);
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305 |
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306 | var len = arguments.length, args = new Array(len)
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307 | for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
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308 | return createCbObservable(fn, ctx, selector, args);
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309 | };
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310 | };
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311 |
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312 | function createNodeObservable(fn, ctx, selector, args) {
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313 | var o = new AsyncSubject();
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314 |
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315 | args.push(createNodeHandler(o, ctx, selector));
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316 | fn.apply(ctx, args);
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317 |
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318 | return o.asObservable();
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319 | }
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320 |
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321 | function createNodeHandler(o, ctx, selector) {
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322 | return function handler () {
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323 | var err = arguments[0];
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324 | if (err) { return o.onError(err); }
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325 |
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326 | var len = arguments.length, results = [];
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327 | for(var i = 1; i < len; i++) { results[i - 1] = arguments[i]; }
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328 |
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329 | if (isFunction(selector)) {
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330 | var results = tryCatch(selector).apply(ctx, results);
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331 | if (results === errorObj) { return o.onError(results.e); }
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332 | o.onNext(results);
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333 | } else {
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334 | if (results.length <= 1) {
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335 | o.onNext(results[0]);
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336 | } else {
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337 | o.onNext(results);
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338 | }
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339 | }
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340 |
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341 | o.onCompleted();
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342 | };
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343 | }
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344 |
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345 |
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346 |
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347 |
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348 |
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349 |
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350 |
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351 |
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352 | Observable.fromNodeCallback = function (fn, ctx, selector) {
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353 | return function () {
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354 | typeof ctx === 'undefined' && (ctx = this);
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355 | var len = arguments.length, args = new Array(len);
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356 | for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
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357 | return createNodeObservable(fn, ctx, selector, args);
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358 | };
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359 | };
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360 |
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361 | function isNodeList(el) {
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362 | if (root.StaticNodeList) {
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363 |
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364 |
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365 | return el instanceof root.StaticNodeList || el instanceof root.NodeList;
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366 | } else {
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367 | return Object.prototype.toString.call(el) === '[object NodeList]';
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368 | }
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369 | }
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370 |
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371 | function ListenDisposable(e, n, fn) {
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372 | this._e = e;
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373 | this._n = n;
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374 | this._fn = fn;
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375 | this._e.addEventListener(this._n, this._fn, false);
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376 | this.isDisposed = false;
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377 | }
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378 | ListenDisposable.prototype.dispose = function () {
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379 | if (!this.isDisposed) {
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380 | this._e.removeEventListener(this._n, this._fn, false);
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381 | this.isDisposed = true;
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382 | }
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383 | };
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384 |
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385 | function createEventListener (el, eventName, handler) {
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386 | var disposables = new CompositeDisposable();
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387 |
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388 |
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389 | var elemToString = Object.prototype.toString.call(el);
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390 | if (isNodeList(el) || elemToString === '[object HTMLCollection]') {
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391 | for (var i = 0, len = el.length; i < len; i++) {
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392 | disposables.add(createEventListener(el.item(i), eventName, handler));
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393 | }
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394 | } else if (el) {
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395 | disposables.add(new ListenDisposable(el, eventName, handler));
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396 | }
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397 |
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398 | return disposables;
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399 | }
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400 |
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401 | |
402 |
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403 |
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404 | Rx.config.useNativeEvents = false;
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405 |
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406 | var EventObservable = (function(__super__) {
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407 | inherits(EventObservable, __super__);
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408 | function EventObservable(el, name, fn) {
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409 | this._el = el;
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410 | this._n = name;
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411 | this._fn = fn;
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412 | __super__.call(this);
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413 | }
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414 |
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415 | function createHandler(o, fn) {
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416 | return function handler () {
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417 | var results = arguments[0];
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418 | if (isFunction(fn)) {
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419 | results = tryCatch(fn).apply(null, arguments);
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420 | if (results === errorObj) { return o.onError(results.e); }
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421 | }
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422 | o.onNext(results);
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423 | };
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424 | }
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425 |
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426 | EventObservable.prototype.subscribeCore = function (o) {
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427 | return createEventListener(
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428 | this._el,
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429 | this._n,
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430 | createHandler(o, this._fn));
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431 | };
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432 |
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433 | return EventObservable;
|
434 | }(ObservableBase));
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435 |
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436 | |
437 |
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438 |
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439 |
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440 |
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441 |
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442 |
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443 | Observable.fromEvent = function (element, eventName, selector) {
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444 |
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445 | if (element.addListener) {
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446 | return fromEventPattern(
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447 | function (h) { element.addListener(eventName, h); },
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448 | function (h) { element.removeListener(eventName, h); },
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449 | selector);
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450 | }
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451 |
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452 |
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453 | if (!Rx.config.useNativeEvents) {
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454 |
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455 | if (typeof element.on === 'function' && typeof element.off === 'function') {
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456 | return fromEventPattern(
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457 | function (h) { element.on(eventName, h); },
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458 | function (h) { element.off(eventName, h); },
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459 | selector);
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460 | }
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461 | }
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462 |
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463 | return new EventObservable(element, eventName, selector).publish().refCount();
|
464 | };
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465 |
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466 | var EventPatternObservable = (function(__super__) {
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467 | inherits(EventPatternObservable, __super__);
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468 | function EventPatternObservable(add, del, fn) {
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469 | this._add = add;
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470 | this._del = del;
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471 | this._fn = fn;
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472 | __super__.call(this);
|
473 | }
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474 |
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475 | function createHandler(o, fn) {
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476 | return function handler () {
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477 | var results = arguments[0];
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478 | if (isFunction(fn)) {
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479 | results = tryCatch(fn).apply(null, arguments);
|
480 | if (results === errorObj) { return o.onError(results.e); }
|
481 | }
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482 | o.onNext(results);
|
483 | };
|
484 | }
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485 |
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486 | EventPatternObservable.prototype.subscribeCore = function (o) {
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487 | var fn = createHandler(o, this._fn);
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488 | var returnValue = this._add(fn);
|
489 | return new EventPatternDisposable(this._del, fn, returnValue);
|
490 | };
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491 |
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492 | function EventPatternDisposable(del, fn, ret) {
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493 | this._del = del;
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494 | this._fn = fn;
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495 | this._ret = ret;
|
496 | this.isDisposed = false;
|
497 | }
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498 |
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499 | EventPatternDisposable.prototype.dispose = function () {
|
500 | if(!this.isDisposed) {
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501 | isFunction(this._del) && this._del(this._fn, this._ret);
|
502 | }
|
503 | };
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504 |
|
505 | return EventPatternObservable;
|
506 | }(ObservableBase));
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507 |
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508 | |
509 |
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510 |
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511 |
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512 |
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513 |
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514 |
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515 | var fromEventPattern = Observable.fromEventPattern = function (addHandler, removeHandler, selector) {
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516 | return new EventPatternObservable(addHandler, removeHandler, selector).publish().refCount();
|
517 | };
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518 |
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519 | |
520 |
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521 |
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522 |
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523 |
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524 | Observable.startAsync = function (functionAsync) {
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525 | var promise = tryCatch(functionAsync)();
|
526 | if (promise === errorObj) { return observableThrow(promise.e); }
|
527 | return observableFromPromise(promise);
|
528 | };
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529 |
|
530 | return Rx;
|
531 | }));
|