296 lines
9.3 KiB
JavaScript
296 lines
9.3 KiB
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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* @providesModule CameraRoll
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* @flow
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* @format
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*/
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'use strict';
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const PropTypes = require('prop-types');
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const {checkPropTypes} = PropTypes;
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const RCTCameraRollManager = require('NativeModules').CameraRollManager;
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const createStrictShapeTypeChecker = require('createStrictShapeTypeChecker');
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const invariant = require('fbjs/lib/invariant');
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const GROUP_TYPES_OPTIONS = {
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Album: 'Album',
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All: 'All',
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Event: 'Event',
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Faces: 'Faces',
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Library: 'Library',
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PhotoStream: 'PhotoStream',
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SavedPhotos: 'SavedPhotos', // default
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};
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const ASSET_TYPE_OPTIONS = {
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All: 'All',
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Videos: 'Videos',
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Photos: 'Photos',
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};
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/**
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* Shape of the param arg for the `getPhotos` function.
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*/
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const getPhotosParamChecker = createStrictShapeTypeChecker({
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/**
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* The number of photos wanted in reverse order of the photo application
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* (i.e. most recent first for SavedPhotos).
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*/
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first: PropTypes.number.isRequired,
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/**
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* A cursor that matches `page_info { end_cursor }` returned from a previous
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* call to `getPhotos`
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*/
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after: PropTypes.string,
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/**
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* Specifies which group types to filter the results to.
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*/
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groupTypes: PropTypes.oneOf(Object.keys(GROUP_TYPES_OPTIONS)),
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/**
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* Specifies filter on group names, like 'Recent Photos' or custom album
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* titles.
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*/
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groupName: PropTypes.string,
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/**
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* Specifies filter on asset type
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*/
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assetType: PropTypes.oneOf(Object.keys(ASSET_TYPE_OPTIONS)),
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/**
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* Filter by mimetype (e.g. image/jpeg).
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*/
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mimeTypes: PropTypes.arrayOf(PropTypes.string),
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});
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/**
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* Shape of the return value of the `getPhotos` function.
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*/
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const getPhotosReturnChecker = createStrictShapeTypeChecker({
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// $FlowFixMe(>=0.41.0)
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edges: PropTypes.arrayOf(
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createStrictShapeTypeChecker({
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node: createStrictShapeTypeChecker({
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type: PropTypes.string.isRequired,
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group_name: PropTypes.string.isRequired,
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image: createStrictShapeTypeChecker({
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uri: PropTypes.string.isRequired,
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height: PropTypes.number.isRequired,
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width: PropTypes.number.isRequired,
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isStored: PropTypes.bool,
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playableDuration: PropTypes.number.isRequired,
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}).isRequired,
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timestamp: PropTypes.number.isRequired,
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location: createStrictShapeTypeChecker({
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latitude: PropTypes.number,
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longitude: PropTypes.number,
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altitude: PropTypes.number,
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heading: PropTypes.number,
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speed: PropTypes.number,
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}),
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}).isRequired,
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}),
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).isRequired,
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page_info: createStrictShapeTypeChecker({
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has_next_page: PropTypes.bool.isRequired,
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start_cursor: PropTypes.string,
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end_cursor: PropTypes.string,
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}).isRequired,
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});
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/**
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* `CameraRoll` provides access to the local camera roll / gallery.
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* Before using this you must link the `RCTCameraRoll` library.
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* You can refer to [Linking](docs/linking-libraries-ios.html) for help.
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*
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* ### Permissions
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* The user's permission is required in order to access the Camera Roll on devices running iOS 10 or later.
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* Add the `NSPhotoLibraryUsageDescription` key in your `Info.plist` with a string that describes how your
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* app will use this data. This key will appear as `Privacy - Photo Library Usage Description` in Xcode.
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*
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*/
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class CameraRoll {
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static GroupTypesOptions: Object = GROUP_TYPES_OPTIONS;
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static AssetTypeOptions: Object = ASSET_TYPE_OPTIONS;
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/**
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* `CameraRoll.saveImageWithTag()` is deprecated. Use `CameraRoll.saveToCameraRoll()` instead.
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*/
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static saveImageWithTag(tag: string): Promise<string> {
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console.warn(
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'`CameraRoll.saveImageWithTag()` is deprecated. Use `CameraRoll.saveToCameraRoll()` instead.',
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);
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return this.saveToCameraRoll(tag, 'photo');
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}
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/**
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* Saves the photo or video to the camera roll / gallery.
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*
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* On Android, the tag must be a local image or video URI, such as `"file:///sdcard/img.png"`.
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*
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* On iOS, the tag can be any image URI (including local, remote asset-library and base64 data URIs)
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* or a local video file URI (remote or data URIs are not supported for saving video at this time).
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*
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* If the tag has a file extension of .mov or .mp4, it will be inferred as a video. Otherwise
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* it will be treated as a photo. To override the automatic choice, you can pass an optional
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* `type` parameter that must be one of 'photo' or 'video'.
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*
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* Returns a Promise which will resolve with the new URI.
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*/
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static saveToCameraRoll(
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tag: string,
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type?: 'photo' | 'video',
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): Promise<string> {
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invariant(
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typeof tag === 'string',
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'CameraRoll.saveToCameraRoll must be a valid string.',
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);
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invariant(
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type === 'photo' || type === 'video' || type === undefined,
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// $FlowFixMe(>=0.28.0)
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`The second argument to saveToCameraRoll must be 'photo' or 'video'. You passed ${type}`,
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);
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let mediaType = 'photo';
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if (type) {
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mediaType = type;
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} else if (['mov', 'mp4'].indexOf(tag.split('.').slice(-1)[0]) >= 0) {
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mediaType = 'video';
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}
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return RCTCameraRollManager.saveToCameraRoll(tag, mediaType);
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}
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/**
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* Returns a Promise with photo identifier objects from the local camera
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* roll of the device matching shape defined by `getPhotosReturnChecker`.
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*
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* Expects a params object of the following shape:
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*
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* - `first` : {number} : The number of photos wanted in reverse order of the photo application (i.e. most recent first for SavedPhotos).
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* - `after` : {string} : A cursor that matches `page_info { end_cursor }` returned from a previous call to `getPhotos`.
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* - `groupTypes` : {string} : Specifies which group types to filter the results to. Valid values are:
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* - `Album`
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* - `All`
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* - `Event`
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* - `Faces`
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* - `Library`
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* - `PhotoStream`
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* - `SavedPhotos` // default
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* - `groupName` : {string} : Specifies filter on group names, like 'Recent Photos' or custom album titles.
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* - `assetType` : {string} : Specifies filter on asset type. Valid values are:
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* - `All`
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* - `Videos`
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* - `Photos` // default
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* - `mimeTypes` : {string} : Filter by mimetype (e.g. image/jpeg).
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*
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* Returns a Promise which when resolved will be of the following shape:
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*
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* - `edges` : {Array<node>} An array of node objects
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* - `node`: {object} An object with the following shape:
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* - `type`: {string}
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* - `group_name`: {string}
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* - `image`: {object} : An object with the following shape:
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* - `uri`: {string}
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* - `height`: {number}
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* - `width`: {number}
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* - `isStored`: {boolean}
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* - `timestamp`: {number}
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* - `location`: {object} : An object with the following shape:
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* - `latitude`: {number}
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* - `longitude`: {number}
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* - `altitude`: {number}
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* - `heading`: {number}
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* - `speed`: {number}
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* - `page_info` : {object} : An object with the following shape:
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* - `has_next_page`: {boolean}
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* - `start_cursor`: {boolean}
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* - `end_cursor`: {boolean}
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*
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* Loading images:
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* ```
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* _handleButtonPress = () => {
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* CameraRoll.getPhotos({
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* first: 20,
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* assetType: 'All',
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* })
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* .then(r => {
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* this.setState({ photos: r.edges });
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* })
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* .catch((err) => {
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* //Error Loading Images
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* });
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* };
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* render() {
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* return (
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* <View>
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* <Button title="Load Images" onPress={this._handleButtonPress} />
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* <ScrollView>
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* {this.state.photos.map((p, i) => {
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* return (
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* <Image
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* key={i}
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* style={{
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* width: 300,
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* height: 100,
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* }}
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* source={{ uri: p.node.image.uri }}
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* />
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* );
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* })}
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* </ScrollView>
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* </View>
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* );
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* }
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* ```
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*/
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static getPhotos(params) {
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if (__DEV__) {
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checkPropTypes(
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{params: getPhotosParamChecker},
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{params},
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'params',
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'CameraRoll.getPhotos',
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);
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}
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if (arguments.length > 1) {
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console.warn(
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'CameraRoll.getPhotos(tag, success, error) is deprecated. Use the returned Promise instead',
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);
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let successCallback = arguments[1];
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if (__DEV__) {
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const callback = arguments[1];
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successCallback = response => {
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checkPropTypes(
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{response: getPhotosReturnChecker},
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{response},
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'response',
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'CameraRoll.getPhotos callback',
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);
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callback(response);
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};
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}
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const errorCallback = arguments[2] || (() => {});
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RCTCameraRollManager.getPhotos(params).then(
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successCallback,
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errorCallback,
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);
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}
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// TODO: Add the __DEV__ check back in to verify the Promise result
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return RCTCameraRollManager.getPhotos(params);
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}
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}
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module.exports = CameraRoll;
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