@react-native-firebase/storage
Version:
React Native Firebase - React Native Firebase provides native integration with Cloud Storage, providing support to upload and download files directly from your device and from your Firebase Cloud Storage bucket.
233 lines (200 loc) • 6.71 kB
JavaScript
/*
* Copyright (c) 2016-present Invertase Limited & Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this library except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
import { isFunction, isNull, isObject } from '@react-native-firebase/app/lib/common';
import { TaskEvent } from './StorageStatics';
let TASK_ID = 0;
function wrapErrorEventListener(listenerFn, unsubscribe) {
return event => {
if (unsubscribe) {
setTimeout(() => unsubscribe(), 0);
} // 1 frame = 16ms, pushing to next frame
if (isFunction(listenerFn)) {
listenerFn(event.error);
}
};
}
function wrapSnapshotEventListener(task, listenerFn, unsubscribe) {
if (!isFunction(listenerFn)) {
return null;
}
return event => {
if (unsubscribe) {
setTimeout(() => unsubscribe(), 0);
} // 1 frame = 16ms, pushing to next frame
if (isFunction(listenerFn)) {
const snapshot = Object.assign({}, event);
snapshot.task = task;
snapshot.ref = task._ref;
if (snapshot.metadata) {
if (!snapshot.metadata.generation) {
snapshot.metadata.generation = '';
}
if (!snapshot.metadata.bucket) {
snapshot.metadata.bucket = task._ref.bucket;
}
if (!snapshot.metadata.metageneration) {
snapshot.metadata.metageneration = '';
}
// // TODO(salakar): these are always here, cannot repro without, remove in 6.1.0 if no issues:
// if (!snapshot.metadata.name) snapshot.metadata.name = task._ref.name;
// if (!snapshot.metadata.fullPath) snapshot.metadata.fullPath = task._ref.fullPath;
}
Object.freeze(snapshot);
task._snapshot = snapshot;
listenerFn(snapshot);
}
};
}
function addTaskEventListener(task, eventName, listener) {
let _eventName = eventName;
if (_eventName !== TaskEvent.STATE_CHANGED) {
_eventName = `${task._type}_${eventName}`;
}
return task._storage.emitter.addListener(
task._storage.eventNameForApp(task._id, _eventName),
listener,
);
}
function subscribeToEvents(task, nextOrObserver, error, complete) {
let _error;
let _errorSubscription;
let _next;
let _nextSubscription;
let _complete;
let _completeSubscription;
const unsubscribe = () => {
if (_nextSubscription) {
_nextSubscription.remove();
}
if (_errorSubscription) {
_errorSubscription.remove();
}
if (_completeSubscription) {
_completeSubscription.remove();
}
};
if (isFunction(nextOrObserver)) {
_error = wrapErrorEventListener(error, unsubscribe);
_next = wrapSnapshotEventListener(task, nextOrObserver);
_complete = wrapSnapshotEventListener(task, complete, unsubscribe);
} else if (isObject(nextOrObserver)) {
_error = wrapErrorEventListener(nextOrObserver.error, unsubscribe);
_next = wrapSnapshotEventListener(task, nextOrObserver.next);
_complete = wrapSnapshotEventListener(task, nextOrObserver.complete, unsubscribe);
} else if (isNull(nextOrObserver)) {
_error = wrapErrorEventListener(error, unsubscribe);
_complete = wrapSnapshotEventListener(task, complete, unsubscribe);
} else {
throw new Error(
"firebase.storage.StorageTask.on(*, _) 'nextOrObserver' must be a Function, an Object or Null.",
);
}
if (_next) {
_nextSubscription = addTaskEventListener(task, TaskEvent.STATE_CHANGED, _next);
}
if (_error) {
_errorSubscription = addTaskEventListener(task, 'failure', _error);
}
if (_complete) {
_completeSubscription = addTaskEventListener(task, 'success', _complete);
}
return unsubscribe;
}
export default class StorageTask {
constructor(type, storageRef, beginTaskFn) {
this._type = type;
this._id = TASK_ID++;
this._promise = null;
this._ref = storageRef;
this._beginTask = beginTaskFn;
this._storage = storageRef._storage;
this._snapshot = null;
}
/**
* @url https://firebase.google.com/docs/reference/js/firebase.storage.UploadTask#then
*/
get then() {
if (!this._promise) {
this._promise = this._beginTask(this);
}
return new Promise((resolve, reject) => {
const boundPromise = this._promise.then.bind(this._promise);
boundPromise(response => {
this._snapshot = { ...response, ref: this._ref, task: this };
resolve(response);
}).catch(error => {
reject(error);
});
}).then.bind(this._promise);
}
/**
* @url https://firebase.google.com/docs/reference/js/firebase.storage.UploadTask#catch
*/
get catch() {
if (!this._promise) {
this._promise = this._beginTask(this);
}
return this._promise.catch.bind(this._promise);
}
get snapshot() {
return this._snapshot;
}
// // NOT on Web SDK
// /**
// * @url https://firebase.google.com/docs/reference/js/firebase.storage.UploadTask#finally
// */
// get finally() {
// if (!this._promise) this._promise = this._beginTask(this);
// return this._promise.finally.bind(this._promise);
// }
/**
* @url https://firebase.google.com/docs/reference/js/firebase.storage.UploadTask#on
*/
on(event, nextOrObserver, error, complete) {
if (event !== TaskEvent.STATE_CHANGED) {
throw new Error(
`firebase.storage.StorageTask.on event argument must be a string with a value of '${TaskEvent.STATE_CHANGED}'`,
);
}
if (!this._promise) {
this._promise = this._beginTask(this);
}
// if only event provided return the subscriber function
if (!nextOrObserver && !error && !complete) {
return subscribeToEvents.bind(null, this);
}
return subscribeToEvents(this, nextOrObserver, error, complete);
}
/**
* @url https://firebase.google.com/docs/reference/js/firebase.storage.UploadTask#pause
*/
pause() {
return this._storage.native.setTaskStatus(this._id, 0);
}
/**
* @url https://firebase.google.com/docs/reference/js/firebase.storage.UploadTask#resume
*/
resume() {
return this._storage.native.setTaskStatus(this._id, 1);
}
/**
* @url https://firebase.google.com/docs/reference/js/firebase.storage.UploadTask#cancel
*/
cancel() {
return this._storage.native.setTaskStatus(this._id, 2);
}
}