wed
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Wed is a schema-aware editor for XML documents.
80 lines (77 loc) • 2.58 kB
JavaScript
define(function(require,exports,module){
;
Object.defineProperty(exports, "__esModule", { value: true });
var Observable_1 = require("../Observable");
var Subscription_1 = require("../Subscription");
/**
* Convert an object into an observable sequence of [key, value] pairs
* using an optional IScheduler to enumerate the object.
*
* @example <caption>Converts a javascript object to an Observable</caption>
* var obj = {
* foo: 42,
* bar: 56,
* baz: 78
* };
*
* var source = Rx.Observable.pairs(obj);
*
* var subscription = source.subscribe(
* function (x) {
* console.log('Next: %s', x);
* },
* function (err) {
* console.log('Error: %s', err);
* },
* function () {
* console.log('Completed');
* });
*
* @param {Object} obj The object to inspect and turn into an
* Observable sequence.
* @param {Scheduler} [scheduler] An optional IScheduler to run the
* enumeration of the input sequence on.
* @returns {(Observable<[string, T]>)} An observable sequence of
* [key, value] pairs from the object.
*/
function pairs(obj, scheduler) {
if (!scheduler) {
return new Observable_1.Observable(function (subscriber) {
var keys = Object.keys(obj);
for (var i = 0; i < keys.length && !subscriber.closed; i++) {
var key = keys[i];
if (obj.hasOwnProperty(key)) {
subscriber.next([key, obj[key]]);
}
}
subscriber.complete();
});
}
else {
return new Observable_1.Observable(function (subscriber) {
var keys = Object.keys(obj);
var subscription = new Subscription_1.Subscription();
subscription.add(scheduler.schedule(dispatch, 0, { keys: keys, index: 0, subscriber: subscriber, subscription: subscription, obj: obj }));
return subscription;
});
}
}
exports.pairs = pairs;
/** @internal */
function dispatch(state) {
var keys = state.keys, index = state.index, subscriber = state.subscriber, subscription = state.subscription, obj = state.obj;
if (!subscriber.closed) {
if (index < keys.length) {
var key = keys[index];
subscriber.next([key, obj[key]]);
subscription.add(this.schedule({ keys: keys, index: index + 1, subscriber: subscriber, subscription: subscription, obj: obj }));
}
else {
subscriber.complete();
}
}
}
exports.dispatch = dispatch;
//# sourceMappingURL=pairs.js.map
return module.exports;
});