@angular/fire
Version:
The official library for Firebase and Angular
1,116 lines (1,093 loc) • 41.5 kB
JavaScript
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@angular/core'), require('rxjs'), require('rxjs/operators'), require('@angular/fire'), require('firebase/database')) :
typeof define === 'function' && define.amd ? define('@angular/fire/database', ['exports', '@angular/core', 'rxjs', 'rxjs/operators', '@angular/fire', 'firebase/database'], factory) :
(global = global || self, factory((global.angular = global.angular || {}, global.angular.fire = global.angular.fire || {}, global.angular.fire.database = {}), global.ng.core, global.rxjs, global.rxjs.operators, global.angular.fire));
}(this, (function (exports, i0, rxjs, operators, i1) { 'use strict';
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* @param {?} value
* @return {?}
*/
function isString(value) {
return typeof value === 'string';
}
/**
* @param {?} value
* @return {?}
*/
function isFirebaseDataSnapshot(value) {
return typeof value.exportVal === 'function';
}
/**
* @param {?} obj
* @return {?}
*/
function isNil(obj) {
return obj === undefined || obj === null;
}
/**
* @param {?} value
* @return {?}
*/
function isFirebaseRef(value) {
return typeof value.set === 'function';
}
/**
* Returns a database reference given a Firebase App and an
* absolute or relative path.
* @param {?} database - Firebase Database
* @param {?} pathRef - Database path, relative or absolute
* @return {?}
*/
function getRef(database, pathRef) {
// if a db ref was passed in, just return it
return isFirebaseRef(pathRef) ? ( /** @type {?} */(pathRef))
: database.ref(( /** @type {?} */(pathRef)));
}
/**
* @param {?} item
* @param {?} cases
* @return {?}
*/
function checkOperationCases(item, cases) {
if (isString(item)) {
return cases.stringCase();
}
else if (isFirebaseRef(item)) {
return cases.firebaseCase();
}
else if (isFirebaseDataSnapshot(item)) {
return cases.snapshotCase();
}
throw new Error("Expects a string, snapshot, or reference. Got: " + typeof item);
}
/*! *****************************************************************************
Copyright (c) Microsoft Corporation.
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
***************************************************************************** */
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/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* @record
* @template T
*/
function SnapshotPrevKey() { }
if (false) {
/** @type {?} */
SnapshotPrevKey.prototype.snapshot;
/** @type {?} */
SnapshotPrevKey.prototype.prevKey;
}
/**
* Create an observable from a Database Reference or Database Query.
* @template T
* @param {?} ref Database Reference
* @param {?} event Listen event type ('value', 'added', 'changed', 'removed', 'moved')
* @param {?=} listenType 'on' or 'once'
* @param {?=} scheduler - Rxjs scheduler
* @return {?}
*/
function fromRef(ref, event, listenType, scheduler) {
if (listenType === void 0) { listenType = 'on'; }
if (scheduler === void 0) { scheduler = rxjs.asyncScheduler; }
return new rxjs.Observable(( /**
* @param {?} subscriber
* @return {?}
*/function (/**
* @param {?} subscriber
* @return {?}
*/ subscriber) {
/** @type {?} */
var fn = null;
fn = ref[listenType](event, ( /**
* @param {?} snapshot
* @param {?} prevKey
* @return {?}
*/function (snapshot, prevKey) {
scheduler.schedule(( /**
* @return {?}
*/function () {
subscriber.next({ snapshot: snapshot, prevKey: prevKey });
}));
if (listenType === 'once') {
scheduler.schedule(( /**
* @return {?}
*/function () { return subscriber.complete(); }));
}
}), ( /**
* @param {?} err
* @return {?}
*/function (/**
* @param {?} err
* @return {?}
*/ err) {
scheduler.schedule(( /**
* @return {?}
*/function () { return subscriber.error(err); }));
}));
if (listenType === 'on') {
return {
/**
* @return {?}
*/
unsubscribe: function () {
if (fn != null) {
ref.off(event, fn);
}
}
};
}
else {
return {
/**
* @return {?}
*/
unsubscribe: function () {
}
};
}
})).pipe(operators.map(( /**
* @param {?} payload
* @return {?}
*/function (/**
* @param {?} payload
* @return {?}
*/ payload) {
var snapshot = payload.snapshot, prevKey = payload.prevKey;
/** @type {?} */
var key = null;
if (snapshot.exists()) {
key = snapshot.key;
}
return { type: event, payload: snapshot, prevKey: prevKey, key: key };
})), operators.share());
}
/**
* @template T
* @param {?} ref
* @param {?} events
* @param {?=} scheduler
* @return {?}
*/
function listChanges(ref, events, scheduler) {
return fromRef(ref, 'value', 'once', scheduler).pipe(operators.switchMap(( /**
* @param {?} snapshotAction
* @return {?}
*/function (/**
* @param {?} snapshotAction
* @return {?}
*/ snapshotAction) {
/** @type {?} */
var childEvent$ = [rxjs.of(snapshotAction)];
events.forEach(( /**
* @param {?} event
* @return {?}
*/function (/**
* @param {?} event
* @return {?}
*/ event) { return childEvent$.push(fromRef(ref, event, 'on', scheduler)); }));
return rxjs.merge.apply(void 0, __spread(childEvent$)).pipe(operators.scan(buildView, []));
})), operators.distinctUntilChanged());
}
/**
* @template T
* @param {?} changes
* @param {?} key
* @return {?}
*/
function positionFor(changes, key) {
/** @type {?} */
var len = changes.length;
for (var i = 0; i < len; i++) {
if (changes[i].payload.key === key) {
return i;
}
}
return -1;
}
/**
* @template T
* @param {?} changes
* @param {?=} prevKey
* @return {?}
*/
function positionAfter(changes, prevKey) {
if (isNil(prevKey)) {
return 0;
}
else {
/** @type {?} */
var i = positionFor(changes, prevKey);
if (i === -1) {
return changes.length;
}
else {
return i + 1;
}
}
}
/**
* @param {?} current
* @param {?} action
* @return {?}
*/
function buildView(current, action) {
var payload = action.payload, prevKey = action.prevKey, key = action.key;
/** @type {?} */
var currentKeyPosition = positionFor(current, key);
/** @type {?} */
var afterPreviousKeyPosition = positionAfter(current, prevKey);
switch (action.type) {
case 'value':
if (action.payload && action.payload.exists()) {
/** @type {?} */
var prevKey_1 = null;
action.payload.forEach(( /**
* @param {?} payload
* @return {?}
*/function (/**
* @param {?} payload
* @return {?}
*/ payload) {
/** @type {?} */
var action = { payload: payload, type: 'value', prevKey: prevKey_1, key: payload.key };
prevKey_1 = payload.key;
current = __spread(current, [action]);
return false;
}));
}
return current;
case 'child_added':
if (currentKeyPosition > -1) {
// check that the previouskey is what we expect, else reorder
/** @type {?} */
var previous = current[currentKeyPosition - 1];
if ((previous && previous.key || null) !== prevKey) {
current = current.filter(( /**
* @param {?} x
* @return {?}
*/function (/**
* @param {?} x
* @return {?}
*/ x) { return x.payload.key !== payload.key; }));
current.splice(afterPreviousKeyPosition, 0, action);
}
}
else if (prevKey == null) {
return __spread([action], current);
}
else {
current = current.slice();
current.splice(afterPreviousKeyPosition, 0, action);
}
return current;
case 'child_removed':
return current.filter(( /**
* @param {?} x
* @return {?}
*/function (/**
* @param {?} x
* @return {?}
*/ x) { return x.payload.key !== payload.key; }));
case 'child_changed':
return current.map(( /**
* @param {?} x
* @return {?}
*/function (/**
* @param {?} x
* @return {?}
*/ x) { return x.payload.key === key ? action : x; }));
case 'child_moved':
if (currentKeyPosition > -1) {
/** @type {?} */
var data = current.splice(currentKeyPosition, 1)[0];
current = current.slice();
current.splice(afterPreviousKeyPosition, 0, data);
return current;
}
return current;
// default will also remove null results
default:
return current;
}
}
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* @param {?=} events
* @return {?}
*/
function validateEventsArray(events) {
if (isNil(events) || events.length === 0) {
events = ['child_added', 'child_removed', 'child_changed', 'child_moved'];
}
return events;
}
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* @template T
* @param {?} query
* @param {?=} events
* @param {?=} scheduler
* @return {?}
*/
function snapshotChanges(query, events, scheduler) {
events = validateEventsArray(events);
return listChanges(query, events, scheduler);
}
/**
* @template T
* @param {?} query
* @param {?=} events
* @param {?=} scheduler
* @return {?}
*/
function stateChanges(query, events, scheduler) {
events = validateEventsArray(events);
/** @type {?} */
var childEvent$ = events.map(( /**
* @param {?} event
* @return {?}
*/function (/**
* @param {?} event
* @return {?}
*/ event) { return fromRef(query, event, 'on', scheduler); }));
return rxjs.merge.apply(void 0, __spread(childEvent$));
}
/**
* @template T
* @param {?} query
* @param {?=} events
* @param {?=} scheduler
* @return {?}
*/
function auditTrail(query, events, scheduler) {
/** @type {?} */
var auditTrail$ = stateChanges(query, events)
.pipe(operators.scan(( /**
* @param {?} current
* @param {?} action
* @return {?}
*/function (current, action) { return __spread(current, [action]); }), []));
return waitForLoaded(query, auditTrail$, scheduler);
}
/**
* @record
*/
function LoadedMetadata() { }
if (false) {
/** @type {?} */
LoadedMetadata.prototype.data;
/** @type {?} */
LoadedMetadata.prototype.lastKeyToLoad;
}
/**
* @template T
* @param {?} query
* @param {?=} scheduler
* @return {?}
*/
function loadedData(query, scheduler) {
// Create an observable of loaded values to retrieve the
// known dataset. This will allow us to know what key to
// emit the "whole" array at when listening for child events.
return fromRef(query, 'value', 'on', scheduler)
.pipe(operators.map(( /**
* @param {?} data
* @return {?}
*/function (/**
* @param {?} data
* @return {?}
*/ data) {
// Store the last key in the data set
/** @type {?} */
var lastKeyToLoad;
// Loop through loaded dataset to find the last key
data.payload.forEach(( /**
* @param {?} child
* @return {?}
*/function (/**
* @param {?} child
* @return {?}
*/ child) {
lastKeyToLoad = child.key;
return false;
}));
// return data set and the current last key loaded
return { data: data, lastKeyToLoad: lastKeyToLoad };
})));
}
/**
* @template T
* @param {?} query
* @param {?} action$
* @param {?=} scheduler
* @return {?}
*/
function waitForLoaded(query, action$, scheduler) {
/** @type {?} */
var loaded$ = loadedData(query, scheduler);
return loaded$
.pipe(operators.withLatestFrom(action$),
// Get the latest values from the "loaded" and "child" datasets
// We can use both datasets to form an array of the latest values.
operators.map(( /**
* @param {?} __0
* @return {?}
*/function (_a) {
var _b = __read(_a, 2), loaded = _b[0], actions = _b[1];
// Store the last key in the data set
/** @type {?} */
var lastKeyToLoad = loaded.lastKeyToLoad;
// Store all child keys loaded at this point
/** @type {?} */
var loadedKeys = actions.map(( /**
* @param {?} snap
* @return {?}
*/function (/**
* @param {?} snap
* @return {?}
*/ snap) { return snap.key; }));
return { actions: actions, lastKeyToLoad: lastKeyToLoad, loadedKeys: loadedKeys };
})),
// This is the magical part, only emit when the last load key
// in the dataset has been loaded by a child event. At this point
// we can assume the dataset is "whole".
operators.skipWhile(( /**
* @param {?} meta
* @return {?}
*/function (/**
* @param {?} meta
* @return {?}
*/ meta) { return meta.loadedKeys.indexOf(meta.lastKeyToLoad) === -1; })),
// Pluck off the meta data because the user only cares
// to iterate through the snapshots
operators.map(( /**
* @param {?} meta
* @return {?}
*/function (/**
* @param {?} meta
* @return {?}
*/ meta) { return meta.actions; })));
}
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* @template T
* @param {?} ref
* @param {?} operation
* @return {?}
*/
function createDataOperationMethod(ref, operation) {
return ( /**
* @template T
* @param {?} item
* @param {?} value
* @return {?}
*/function dataOperation(item, value) {
return checkOperationCases(item, {
stringCase: ( /**
* @return {?}
*/function () { return ref.child(( /** @type {?} */(item)))[operation](value); }),
firebaseCase: ( /**
* @return {?}
*/function () { return (( /** @type {?} */(item)))[operation](value); }),
snapshotCase: ( /**
* @return {?}
*/function () { return (( /** @type {?} */(item))).ref[operation](value); })
});
});
}
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
// TODO(davideast): Find out why TS thinks this returns firebase.Primise
// instead of Promise.
/**
* @template T
* @param {?} ref
* @return {?}
*/
function createRemoveMethod(ref) {
return ( /**
* @param {?=} item
* @return {?}
*/function remove(item) {
if (!item) {
return ref.remove();
}
return checkOperationCases(item, {
stringCase: ( /**
* @return {?}
*/function () { return ref.child(( /** @type {?} */(item))).remove(); }),
firebaseCase: ( /**
* @return {?}
*/function () { return (( /** @type {?} */(item))).remove(); }),
snapshotCase: ( /**
* @return {?}
*/function () { return (( /** @type {?} */(item))).ref.remove(); })
});
});
}
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* @template T
* @param {?} query
* @param {?} afDatabase
* @return {?}
*/
function createListReference(query, afDatabase) {
/** @type {?} */
var outsideAngularScheduler = afDatabase.schedulers.outsideAngular;
/** @type {?} */
var refInZone = afDatabase.schedulers.ngZone.run(( /**
* @return {?}
*/function () { return query.ref; }));
return {
query: query,
update: createDataOperationMethod(refInZone, 'update'),
set: createDataOperationMethod(refInZone, 'set'),
push: ( /**
* @param {?} data
* @return {?}
*/function (data) { return refInZone.push(data); }),
remove: createRemoveMethod(refInZone),
/**
* @param {?=} events
* @return {?}
*/
snapshotChanges: function (events) {
return snapshotChanges(query, events, outsideAngularScheduler).pipe(afDatabase.keepUnstableUntilFirst);
},
/**
* @param {?=} events
* @return {?}
*/
stateChanges: function (events) {
return stateChanges(query, events, outsideAngularScheduler).pipe(afDatabase.keepUnstableUntilFirst);
},
/**
* @param {?=} events
* @return {?}
*/
auditTrail: function (events) {
return auditTrail(query, events, outsideAngularScheduler).pipe(afDatabase.keepUnstableUntilFirst);
},
/**
* @param {?=} events
* @return {?}
*/
valueChanges: function (events) {
/** @type {?} */
var snapshotChanges$ = snapshotChanges(query, events, outsideAngularScheduler);
return snapshotChanges$.pipe(operators.map(( /**
* @param {?} actions
* @return {?}
*/function (/**
* @param {?} actions
* @return {?}
*/ actions) { return actions.map(( /**
* @param {?} a
* @return {?}
*/function (/**
* @param {?} a
* @return {?}
*/ a) { return ( /** @type {?} */(a.payload.val())); })); })), afDatabase.keepUnstableUntilFirst);
}
};
}
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* @template T
* @param {?} query
* @param {?=} scheduler
* @return {?}
*/
function createObjectSnapshotChanges(query, scheduler) {
return ( /**
* @return {?}
*/function snapshotChanges() {
return fromRef(query, 'value', 'on', scheduler);
});
}
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* @template T
* @param {?} query
* @param {?} afDatabase
* @return {?}
*/
function createObjectReference(query, afDatabase) {
return {
query: query,
/**
* @template T
* @return {?}
*/
snapshotChanges: function () {
return createObjectSnapshotChanges(query, afDatabase.schedulers.outsideAngular)().pipe(afDatabase.keepUnstableUntilFirst);
},
/**
* @param {?} data
* @return {?}
*/
update: function (data) { return ( /** @type {?} */(query.ref.update(( /** @type {?} */(data))))); },
/**
* @param {?} data
* @return {?}
*/
set: function (data) { return ( /** @type {?} */(query.ref.set(data))); },
/**
* @return {?}
*/
remove: function () { return ( /** @type {?} */(query.ref.remove())); },
/**
* @template T
* @return {?}
*/
valueChanges: function () {
/** @type {?} */
var snapshotChanges$ = createObjectSnapshotChanges(query, afDatabase.schedulers.outsideAngular)();
return snapshotChanges$.pipe(afDatabase.keepUnstableUntilFirst, operators.map(( /**
* @param {?} action
* @return {?}
*/function (/**
* @param {?} action
* @return {?}
*/ action) { return action.payload.exists() ? ( /** @type {?} */(action.payload.val())) : null; })));
},
};
}
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/** @type {?} */
var URL = new i0.InjectionToken('angularfire2.realtimeDatabaseURL');
var AngularFireDatabase = /** @class */ (function () {
/**
* @param {?} options
* @param {?} nameOrConfig
* @param {?} databaseURL
* @param {?} platformId
* @param {?} zone
*/
function AngularFireDatabase(options, nameOrConfig, databaseURL,
// tslint:disable-next-line:ban-types
platformId, zone) {
this.schedulers = new i1.ɵAngularFireSchedulers(zone);
this.keepUnstableUntilFirst = i1.ɵkeepUnstableUntilFirstFactory(this.schedulers);
this.database = zone.runOutsideAngular(( /**
* @return {?}
*/function () {
/** @type {?} */
var app = i1.ɵfirebaseAppFactory(options, zone, nameOrConfig);
return app.database(databaseURL || undefined);
}));
}
/**
* @template T
* @param {?} pathOrRef
* @param {?=} queryFn
* @return {?}
*/
AngularFireDatabase.prototype.list = function (pathOrRef, queryFn) {
/** @type {?} */
var ref = getRef(this.database, pathOrRef);
/** @type {?} */
var query = ref;
if (queryFn) {
query = queryFn(ref);
}
return createListReference(query, this);
};
/**
* @template T
* @param {?} pathOrRef
* @return {?}
*/
AngularFireDatabase.prototype.object = function (pathOrRef) {
/** @type {?} */
var ref = getRef(this.database, pathOrRef);
return createObjectReference(ref, this);
};
/**
* @return {?}
*/
AngularFireDatabase.prototype.createPushId = function () {
return this.database.ref().push().key;
};
return AngularFireDatabase;
}());
AngularFireDatabase.decorators = [
{ type: i0.Injectable, args: [{
providedIn: 'any'
},] }
];
/** @nocollapse */
AngularFireDatabase.ctorParameters = function () { return [
{ type: undefined, decorators: [{ type: i0.Inject, args: [i1.FIREBASE_OPTIONS,] }] },
{ type: undefined, decorators: [{ type: i0.Optional }, { type: i0.Inject, args: [i1.FIREBASE_APP_NAME,] }] },
{ type: undefined, decorators: [{ type: i0.Optional }, { type: i0.Inject, args: [URL,] }] },
{ type: Object, decorators: [{ type: i0.Inject, args: [i0.PLATFORM_ID,] }] },
{ type: i0.NgZone }
]; };
/** @nocollapse */ AngularFireDatabase.ɵprov = i0.ɵɵdefineInjectable({ factory: function AngularFireDatabase_Factory() { return new AngularFireDatabase(i0.ɵɵinject(i1.FIREBASE_OPTIONS), i0.ɵɵinject(i1.FIREBASE_APP_NAME, 8), i0.ɵɵinject(URL, 8), i0.ɵɵinject(i0.PLATFORM_ID), i0.ɵɵinject(i0.NgZone)); }, token: AngularFireDatabase, providedIn: "any" });
if (false) {
/** @type {?} */
AngularFireDatabase.prototype.database;
/** @type {?} */
AngularFireDatabase.prototype.schedulers;
/** @type {?} */
AngularFireDatabase.prototype.keepUnstableUntilFirst;
}
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
var AngularFireDatabaseModule = /** @class */ (function () {
function AngularFireDatabaseModule() {
}
return AngularFireDatabaseModule;
}());
AngularFireDatabaseModule.decorators = [
{ type: i0.NgModule, args: [{
providers: [AngularFireDatabase]
},] }
];
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
exports.AngularFireDatabase = AngularFireDatabase;
exports.AngularFireDatabaseModule = AngularFireDatabaseModule;
exports.URL = URL;
exports.auditTrail = auditTrail;
exports.createListReference = createListReference;
exports.fromRef = fromRef;
exports.listChanges = listChanges;
exports.snapshotChanges = snapshotChanges;
exports.stateChanges = stateChanges;
Object.defineProperty(exports, '__esModule', { value: true });
})));
//# sourceMappingURL=angular-fire-database.umd.js.map